TSTP Solution File: SEU189+2 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SEU189+2 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp
% Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s

% Computer : n009.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Tue Jul 19 12:07:54 EDT 2022

% Result   : Theorem 1.66s 1.97s
% Output   : CNFRefutation 6.16s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   30
%            Number of leaves      :  211
% Syntax   : Number of formulae    : 3971 (1894 unt;  80 typ;   0 def)
%            Number of atoms       : 29305 (10638 equ;   0 cnn)
%            Maximal formula atoms :   11 (   7 avg)
%            Number of connectives : 64533 (11290   ~;10571   |; 486   &;41903   @)
%                                         ( 101 <=>; 182  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   17 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :  151 ( 151   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   83 (  80 usr;   8 con; 0-5 aty)
%            Number of variables   : 11842 (   0   ^11810   !;  32   ?;11842   :)

% Comments : 
%------------------------------------------------------------------------------
thf(tp_are_equipotent,type,
    are_equipotent: $i > $i > $o ).

thf(tp_cartesian_product2,type,
    cartesian_product2: $i > $i > $i ).

thf(tp_cast_to_subset,type,
    cast_to_subset: $i > $i ).

thf(tp_complements_of_subsets,type,
    complements_of_subsets: $i > $i > $i ).

thf(tp_disjoint,type,
    disjoint: $i > $i > $o ).

thf(tp_element,type,
    element: $i > $i > $o ).

thf(tp_empty,type,
    empty: $i > $o ).

thf(tp_empty_set,type,
    empty_set: $i ).

thf(tp_in,type,
    in: $i > $i > $o ).

thf(tp_meet_of_subsets,type,
    meet_of_subsets: $i > $i > $i ).

thf(tp_ordered_pair,type,
    ordered_pair: $i > $i > $i ).

thf(tp_powerset,type,
    powerset: $i > $i ).

thf(tp_proper_subset,type,
    proper_subset: $i > $i > $o ).

thf(tp_relation,type,
    relation: $i > $o ).

thf(tp_relation_composition,type,
    relation_composition: $i > $i > $i ).

thf(tp_relation_dom,type,
    relation_dom: $i > $i ).

thf(tp_relation_field,type,
    relation_field: $i > $i ).

thf(tp_relation_inverse,type,
    relation_inverse: $i > $i ).

thf(tp_relation_rng,type,
    relation_rng: $i > $i ).

thf(tp_sK10_D,type,
    sK10_D: $i > $i > $i > $i ).

thf(tp_sK11_SY305,type,
    sK11_SY305: $i > $i > $i > $i ).

thf(tp_sK12_SY309,type,
    sK12_SY309: $i > $i > $i > $i ).

thf(tp_sK13_C,type,
    sK13_C: $i > $i > $i ).

thf(tp_sK14_SY310,type,
    sK14_SY310: $i > $i > $i ).

thf(tp_sK15_D,type,
    sK15_D: $i > $i > $i > $i ).

thf(tp_sK16_D,type,
    sK16_D: $i > $i > $i > $i ).

thf(tp_sK17_C,type,
    sK17_C: $i > $i > $i ).

thf(tp_sK18_SY312,type,
    sK18_SY312: $i > $i > $i ).

thf(tp_sK19_D,type,
    sK19_D: $i > $i > $i > $i ).

thf(tp_sK1_A,type,
    sK1_A: $i ).

thf(tp_sK20_C,type,
    sK20_C: $i > $i > $i ).

thf(tp_sK21_E,type,
    sK21_E: $i > $i > $i > $i > $i ).

thf(tp_sK22_SY313,type,
    sK22_SY313: $i > $i > $i > $i > $i ).

thf(tp_sK23_D,type,
    sK23_D: $i > $i > $i > $i ).

thf(tp_sK24_SY316,type,
    sK24_SY316: $i > $i > $i > $i ).

thf(tp_sK25_SY318,type,
    sK25_SY318: $i > $i > $i > $i ).

thf(tp_sK26_D,type,
    sK26_D: $i > $i > $i > $i ).

thf(tp_sK27_D,type,
    sK27_D: $i > $i > $i > $i ).

thf(tp_sK28_C,type,
    sK28_C: $i > $i > $i ).

thf(tp_sK29_C,type,
    sK29_C: $i > $i > $i ).

thf(tp_sK2_B,type,
    sK2_B: $i > $i ).

thf(tp_sK30_C,type,
    sK30_C: $i > $i > $i ).

thf(tp_sK31_C,type,
    sK31_C: $i > $i > $i ).

thf(tp_sK32_B,type,
    sK32_B: $i > $i ).

thf(tp_sK33_C,type,
    sK33_C: $i > $i > $i ).

thf(tp_sK34_A,type,
    sK34_A: $i ).

thf(tp_sK35_A,type,
    sK35_A: $i ).

thf(tp_sK36_D,type,
    sK36_D: $i > $i > $i > $i ).

thf(tp_sK37_C,type,
    sK37_C: $i > $i > $i ).

thf(tp_sK38_SY324,type,
    sK38_SY324: $i > $i > $i ).

thf(tp_sK39_D,type,
    sK39_D: $i > $i > $i > $i ).

thf(tp_sK3_SY300,type,
    sK3_SY300: $i > $i > $i ).

thf(tp_sK40_C,type,
    sK40_C: $i > $i > $i ).

thf(tp_sK41_SY326,type,
    sK41_SY326: $i > $i > $i ).

thf(tp_sK42_B,type,
    sK42_B: $i > $i ).

thf(tp_sK43_D,type,
    sK43_D: $i > $i > $i > $i ).

thf(tp_sK44_C,type,
    sK44_C: $i > $i > $i ).

thf(tp_sK45_SY327,type,
    sK45_SY327: $i > $i > $i ).

thf(tp_sK46_C,type,
    sK46_C: $i > $i > $i ).

thf(tp_sK47_SY329,type,
    sK47_SY329: $i > $i > $i ).

thf(tp_sK48_B,type,
    sK48_B: $i > $i ).

thf(tp_sK49_B,type,
    sK49_B: $i > $i ).

thf(tp_sK4_C,type,
    sK4_C: $i > $i > $i ).

thf(tp_sK50_SY332,type,
    sK50_SY332: $i > $i ).

thf(tp_sK5_A,type,
    sK5_A: $i ).

thf(tp_sK6_B,type,
    sK6_B: $i > $i ).

thf(tp_sK7_A,type,
    sK7_A: $i ).

thf(tp_sK8_B,type,
    sK8_B: $i > $i ).

thf(tp_sK9_F,type,
    sK9_F: $i > $i > $i > $i > $i > $i ).

thf(tp_set_difference,type,
    set_difference: $i > $i > $i ).

thf(tp_set_intersection2,type,
    set_intersection2: $i > $i > $i ).

thf(tp_set_meet,type,
    set_meet: $i > $i ).

thf(tp_set_union2,type,
    set_union2: $i > $i > $i ).

thf(tp_singleton,type,
    singleton: $i > $i ).

thf(tp_subset,type,
    subset: $i > $i > $o ).

thf(tp_subset_complement,type,
    subset_complement: $i > $i > $i ).

thf(tp_subset_difference,type,
    subset_difference: $i > $i > $i > $i ).

thf(tp_union,type,
    union: $i > $i ).

thf(tp_union_of_subsets,type,
    union_of_subsets: $i > $i > $i ).

thf(tp_unordered_pair,type,
    unordered_pair: $i > $i > $i ).

thf(1,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ( in @ A @ B )
      & ! [C: $i,D: $i] :
          ( ( ( in @ C @ B )
            & ( subset @ D @ C ) )
         => ( in @ D @ B ) )
      & ! [C: $i] :
          ~ ( ( in @ C @ B )
            & ! [D: $i] :
                ~ ( ( in @ D @ B )
                  & ! [E: $i] :
                      ( ( subset @ E @ C )
                     => ( in @ E @ D ) ) ) )
      & ! [C: $i] :
          ~ ( ( subset @ C @ B )
            & ~ ( are_equipotent @ C @ B )
            & ~ ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t9_tarski) ).

thf(2,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( empty @ A )
        & ( A != B )
        & ( empty @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_boole) ).

thf(3,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( in @ A @ B )
        & ( empty @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_boole) ).

thf(4,axiom,
    ! [A: $i] :
      ( ( empty @ A )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_boole) ).

thf(5,axiom,
    ! [A: $i,B: $i,C: $i] :
      ~ ( ( in @ A @ B )
        & ( element @ B @ ( powerset @ C ) )
        & ( empty @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t5_subset) ).

thf(6,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( in @ A @ B )
        & ( element @ B @ ( powerset @ C ) ) )
     => ( element @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t4_subset) ).

thf(7,axiom,
    ! [A: $i] :
      ( ( set_difference @ empty_set @ A )
      = empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t4_boole) ).

thf(8,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ A @ ( powerset @ B ) )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_subset) ).

thf(9,axiom,
    ! [A: $i] :
      ( ( set_difference @ A @ empty_set )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_boole) ).

thf(10,axiom,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( in @ C @ A )
        <=> ( in @ C @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_tarski) ).

thf(11,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ A @ B )
     => ( ( empty @ B )
        | ( in @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_subset) ).

thf(12,axiom,
    ! [A: $i] :
      ( ( set_intersection2 @ A @ empty_set )
      = empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_boole) ).

thf(13,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( element @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_subset) ).

thf(14,axiom,
    ! [A: $i] :
      ( ( set_union2 @ A @ empty_set )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_boole) ).

thf(15,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
     => ( disjoint @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',symmetry_r1_xboole_0) ).

thf(16,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',reflexivity_r1_tarski) ).

thf(20,axiom,
    ? [A: $i] :
      ~ ( empty @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_xboole_0) ).

thf(21,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
      & ( empty @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_subset_1) ).

thf(22,axiom,
    ? [A: $i] :
      ( ~ ( empty @ A )
      & ( relation @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_relat_1) ).

thf(23,axiom,
    ? [A: $i] : ( empty @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_xboole_0) ).

thf(24,axiom,
    ! [A: $i] :
      ( ~ ( empty @ A )
     => ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ~ ( empty @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_subset_1) ).

thf(25,axiom,
    ? [A: $i] :
      ( ( empty @ A )
      & ( relation @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_relat_1) ).

thf(28,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( ( relation_inverse @ ( relation_inverse @ A ) )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',involutiveness_k4_relat_1) ).

thf(30,axiom,
    ! [A: $i,B: $i] :
      ( ( set_intersection2 @ A @ A )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',idempotence_k3_xboole_0) ).

thf(31,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ A )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',idempotence_k2_xboole_0) ).

thf(32,axiom,
    ! [A: $i] :
      ( ( empty @ A )
     => ( ( empty @ ( relation_rng @ A ) )
        & ( relation @ ( relation_rng @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc8_relat_1) ).

thf(33,axiom,
    ! [A: $i] :
      ( ( empty @ A )
     => ( ( empty @ ( relation_dom @ A ) )
        & ( relation @ ( relation_dom @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc7_relat_1) ).

thf(34,axiom,
    ! [A: $i] :
      ( ( ~ ( empty @ A )
        & ( relation @ A ) )
     => ~ ( empty @ ( relation_rng @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc6_relat_1) ).

thf(35,axiom,
    ! [A: $i] :
      ( ( ~ ( empty @ A )
        & ( relation @ A ) )
     => ~ ( empty @ ( relation_dom @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc5_relat_1) ).

thf(36,axiom,
    ! [A: $i,B: $i] :
      ( ( ~ ( empty @ A )
        & ~ ( empty @ B ) )
     => ~ ( empty @ ( cartesian_product2 @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc4_subset_1) ).

thf(37,axiom,
    ( ( empty @ empty_set )
    & ( relation @ empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc4_relat_1) ).

thf(38,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_xboole_0) ).

thf(39,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( unordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_subset_1) ).

thf(40,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_xboole_0) ).

thf(41,axiom,
    ! [A: $i] :
      ~ ( empty @ ( singleton @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_subset_1) ).

thf(42,axiom,
    ! [A: $i,B: $i] :
      ( ( ( relation @ A )
        & ( relation @ B ) )
     => ( relation @ ( set_union2 @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_relat_1) ).

thf(43,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( ordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

thf(44,axiom,
    empty @ empty_set,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(45,axiom,
    ! [A: $i] :
      ~ ( empty @ ( powerset @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_subset_1) ).

thf(52,axiom,
    ! [A: $i,B: $i] :
      ( ( ( relation @ A )
        & ( relation @ B ) )
     => ( relation @ ( relation_composition @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k5_relat_1) ).

thf(55,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( relation @ ( relation_inverse @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_relat_1) ).

thf(70,axiom,
    ! [A: $i,B: $i] :
      ( ( proper_subset @ A @ B )
    <=> ( ( subset @ A @ B )
        & ( A != B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d8_xboole_0) ).

thf(72,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ! [C: $i] :
              ( ( relation @ C )
             => ( ( C
                  = ( relation_composition @ A @ B ) )
              <=> ! [D: $i,E: $i] :
                    ( ( in @ ( ordered_pair @ D @ E ) @ C )
                  <=> ? [F: $i] :
                        ( ( in @ ( ordered_pair @ D @ F ) @ A )
                        & ( in @ ( ordered_pair @ F @ E ) @ B ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d8_relat_1) ).

thf(73,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_intersection2 @ A @ B )
        = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d7_xboole_0) ).

thf(74,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( ( B
              = ( relation_inverse @ A ) )
          <=> ! [C: $i,D: $i] :
                ( ( in @ ( ordered_pair @ C @ D ) @ B )
              <=> ( in @ ( ordered_pair @ D @ C ) @ A ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d7_relat_1) ).

thf(75,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( ( relation_field @ A )
        = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d6_relat_1) ).

thf(76,axiom,
    ! [A: $i,B: $i] :
      ( ( ordered_pair @ A @ B )
      = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_tarski) ).

thf(78,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( B
            = ( relation_rng @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ? [D: $i] : ( in @ ( ordered_pair @ D @ C ) @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_relat_1) ).

thf(79,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_difference @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ~ ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_xboole_0) ).

thf(80,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( union @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ? [D: $i] :
              ( ( in @ C @ D )
              & ( in @ D @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_tarski) ).

thf(82,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( B
            = ( relation_dom @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ? [D: $i] : ( in @ ( ordered_pair @ C @ D ) @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_relat_1) ).

thf(83,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_intersection2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_xboole_0) ).

thf(84,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

thf(85,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( cartesian_product2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ? [E: $i,F: $i] :
              ( ( in @ E @ A )
              & ( in @ F @ B )
              & ( D
                = ( ordered_pair @ E @ F ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_zfmisc_1) ).

thf(86,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_union2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            | ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_xboole_0) ).

thf(87,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( unordered_pair @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( D = A )
            | ( D = B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_tarski) ).

thf(88,axiom,
    ! [A: $i,B: $i] :
      ( ( ~ ( empty @ A )
       => ( ( element @ B @ A )
        <=> ( in @ B @ A ) ) )
      & ( ( empty @ A )
       => ( ( element @ B @ A )
        <=> ( empty @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_subset_1) ).

thf(89,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( powerset @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( subset @ C @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_zfmisc_1) ).

thf(90,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(91,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( singleton @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( C = A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_tarski) ).

thf(92,axiom,
    ! [A: $i,B: $i] :
      ( ( ( A != empty_set )
       => ( ( B
            = ( set_meet @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ! [D: $i] :
                  ( ( in @ D @ A )
                 => ( in @ C @ D ) ) ) ) )
      & ( ( A = empty_set )
       => ( ( B
            = ( set_meet @ A ) )
        <=> ( B = empty_set ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_setfam_1) ).

thf(93,axiom,
    ! [A: $i] :
      ( ( relation @ A )
    <=> ! [B: $i] :
          ~ ( ( in @ B @ A )
            & ! [C: $i,D: $i] :
                ( B
               != ( ordered_pair @ C @ D ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_relat_1) ).

thf(94,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d10_xboole_0) ).

thf(95,axiom,
    ! [A: $i,B: $i] :
      ( ( set_intersection2 @ A @ B )
      = ( set_intersection2 @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k3_xboole_0) ).

thf(96,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ B )
      = ( set_union2 @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_xboole_0) ).

thf(98,axiom,
    ! [A: $i] :
      ( ( empty @ A )
     => ( relation @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cc1_relat_1) ).

thf(100,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(101,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( singleton @ A )
        = ( unordered_pair @ B @ C ) )
     => ( B = C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t9_zfmisc_1) ).

thf(102,axiom,
    ! [A: $i] :
      ( ( union @ ( powerset @ A ) )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t99_zfmisc_1) ).

thf(103,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t92_zfmisc_1) ).

thf(104,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( singleton @ A )
        = ( unordered_pair @ B @ C ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_zfmisc_1) ).

thf(105,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ C @ B ) )
     => ( subset @ ( set_union2 @ A @ C ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_xboole_1) ).

thf(106,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_difference @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t83_xboole_1) ).

thf(107,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(108,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(109,axiom,
    ! [A: $i] :
      ( ( unordered_pair @ A @ A )
      = ( singleton @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t69_enumset1) ).

thf(110,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ ( singleton @ B ) )
        = A )
    <=> ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t65_zfmisc_1) ).

thf(111,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( ( ( ( relation_dom @ A )
            = empty_set )
          | ( ( relation_rng @ A )
            = empty_set ) )
       => ( A = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t64_relat_1) ).

thf(112,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( disjoint @ B @ C ) )
     => ( disjoint @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t63_xboole_1) ).

thf(113,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( subset @ A @ B )
        & ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(114,axiom,
    ( ( ( relation_dom @ empty_set )
      = empty_set )
    & ( ( relation_rng @ empty_set )
      = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_relat_1) ).

thf(115,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( ! [B: $i,C: $i] :
            ~ ( in @ ( ordered_pair @ B @ C ) @ A )
       => ( A = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t56_relat_1) ).

thf(118,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( disjoint @ A @ B )
          & ! [C: $i] :
              ~ ( in @ C @ ( set_intersection2 @ A @ B ) ) )
      & ~ ( ? [C: $i] : ( in @ C @ ( set_intersection2 @ A @ B ) )
          & ( disjoint @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t4_xboole_0) ).

thf(119,axiom,
    ! [A: $i,B: $i] :
      ( ( set_difference @ A @ ( set_difference @ A @ B ) )
      = ( set_intersection2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t48_xboole_1) ).

thf(122,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( ( subset @ ( relation_dom @ A ) @ ( relation_rng @ B ) )
           => ( ( relation_rng @ ( relation_composition @ B @ A ) )
              = ( relation_rng @ A ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t47_relat_1) ).

thf(123,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( ( set_union2 @ ( singleton @ A ) @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t46_zfmisc_1) ).

thf(125,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( ( subset @ ( relation_rng @ A ) @ ( relation_dom @ B ) )
           => ( ( relation_dom @ ( relation_composition @ A @ B ) )
              = ( relation_dom @ A ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t46_relat_1) ).

thf(126,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( B
        = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t45_xboole_1) ).

thf(127,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t45_relat_1) ).

thf(128,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t44_relat_1) ).

thf(130,axiom,
    ! [A: $i,B: $i] :
      ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
      = ( set_difference @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t40_xboole_1) ).

thf(131,axiom,
    ! [A: $i] :
      ( ( subset @ A @ empty_set )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(132,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( disjoint @ A @ B )
          & ! [C: $i] :
              ~ ( ( in @ C @ A )
                & ( in @ C @ B ) ) )
      & ~ ( ? [C: $i] :
              ( ( in @ C @ A )
              & ( in @ C @ B ) )
          & ( disjoint @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_0) ).

thf(133,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t39_zfmisc_1) ).

thf(134,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
      = ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t39_xboole_1) ).

thf(135,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ ( unordered_pair @ A @ B ) @ C )
    <=> ( ( in @ A @ C )
        & ( in @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t38_zfmisc_1) ).

thf(136,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_zfmisc_1) ).

thf(137,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_xboole_1) ).

thf(138,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( ( ( relation_rng @ A )
          = ( relation_dom @ ( relation_inverse @ A ) ) )
        & ( ( relation_dom @ A )
          = ( relation_rng @ ( relation_inverse @ A ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_relat_1) ).

thf(139,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(140,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( ordered_pair @ A @ B )
        = ( ordered_pair @ C @ D ) )
     => ( ( A = C )
        & ( B = D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_zfmisc_1) ).

thf(141,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_xboole_1) ).

thf(142,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation @ C )
     => ( ( in @ ( ordered_pair @ A @ B ) @ C )
       => ( ( in @ A @ ( relation_field @ C ) )
          & ( in @ B @ ( relation_field @ C ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t30_relat_1) ).

thf(143,axiom,
    ! [A: $i] : ( subset @ empty_set @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(144,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_intersection2 @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(145,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t26_xboole_1) ).

thf(146,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( ( subset @ A @ B )
           => ( ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) )
              & ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t25_relat_1) ).

thf(147,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t21_relat_1) ).

thf(148,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation @ C )
     => ( ( in @ ( ordered_pair @ A @ B ) @ C )
       => ( ( in @ A @ ( relation_dom @ C ) )
          & ( in @ B @ ( relation_rng @ C ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t20_relat_1) ).

thf(149,axiom,
    ( ( powerset @ empty_set )
    = ( singleton @ empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_zfmisc_1) ).

thf(150,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ B @ C ) )
     => ( subset @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_xboole_1) ).

thf(151,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ A @ C ) )
     => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t19_xboole_1) ).

thf(152,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(153,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ( in @ A @ B )
      & ! [C: $i,D: $i] :
          ( ( ( in @ C @ B )
            & ( subset @ D @ C ) )
         => ( in @ D @ B ) )
      & ! [C: $i] :
          ( ( in @ C @ B )
         => ( in @ ( powerset @ C ) @ B ) )
      & ! [C: $i] :
          ~ ( ( subset @ C @ B )
            & ~ ( are_equipotent @ C @ B )
            & ~ ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t136_zfmisc_1) ).

thf(154,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_union2 @ A @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(155,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ C @ D ) )
     => ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t119_zfmisc_1) ).

thf(156,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) )
        & ( subset @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t118_zfmisc_1) ).

thf(158,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
    <=> ( ( in @ A @ C )
        & ( in @ B @ D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t106_zfmisc_1) ).

thf(159,axiom,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) )
     => ( element @ A @ ( powerset @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l71_subset_1) ).

thf(160,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
    <=> ( ( in @ A @ C )
        & ( in @ B @ D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l55_zfmisc_1) ).

thf(161,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l50_zfmisc_1) ).

thf(162,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l4_zfmisc_1) ).

thf(163,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( ( in @ C @ A )
        | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l3_zfmisc_1) ).

thf(164,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ! [C: $i] :
          ( ( in @ C @ B )
         => ( in @ C @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l3_subset_1) ).

thf(165,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l32_xboole_1) ).

thf(166,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(167,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( in @ A @ B )
     => ( disjoint @ ( singleton @ A ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l28_zfmisc_1) ).

thf(168,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( disjoint @ ( singleton @ A ) @ B )
        & ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l25_zfmisc_1) ).

thf(169,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( ( set_union2 @ ( singleton @ A ) @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l23_zfmisc_1) ).

thf(170,axiom,
    ! [A: $i] :
      ( ( singleton @ A )
     != empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(171,conjecture,
    ! [A: $i] :
      ( ( relation @ A )
     => ( ( ( relation_dom @ A )
          = empty_set )
      <=> ( ( relation_rng @ A )
          = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t65_relat_1) ).

thf(172,negated_conjecture,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ( ( relation_dom @ A )
              = empty_set )
          <=> ( ( relation_rng @ A )
              = empty_set ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[171]) ).

thf(173,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ( ( relation_dom @ A )
              = empty_set )
          <=> ( ( relation_rng @ A )
              = empty_set ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[172]) ).

thf(174,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( in @ A @ B )
          & ! [C: $i,D: $i] :
              ( ( ( in @ C @ B )
                & ( subset @ D @ C ) )
             => ( in @ D @ B ) )
          & ! [C: $i] :
              ~ ( ( in @ C @ B )
                & ! [D: $i] :
                    ~ ( ( in @ D @ B )
                      & ! [E: $i] :
                          ( ( subset @ E @ C )
                         => ( in @ E @ D ) ) ) )
          & ! [C: $i] :
              ~ ( ( subset @ C @ B )
                & ~ ( are_equipotent @ C @ B )
                & ~ ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(175,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( empty @ A )
            & ( A != B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(176,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(177,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ~ ( ( in @ A @ B )
            & ( element @ B @ ( powerset @ C ) )
            & ( empty @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(178,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( in @ A @ B )
            & ( element @ B @ ( powerset @ C ) ) )
         => ( element @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(179,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ ( powerset @ B ) )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(180,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(181,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ B )
         => ( ( empty @ B )
            | ( in @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(182,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(183,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
         => ( disjoint @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(184,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(185,plain,
    ( ( ? [A: $i] :
          ~ ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[20]) ).

thf(186,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[21]) ).

thf(187,plain,
    ( ( ? [A: $i] : ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[23]) ).

thf(188,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
         => ? [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
              & ~ ( empty @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[24]) ).

thf(189,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(190,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(191,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ~ ( empty @ A )
            & ~ ( empty @ B ) )
         => ~ ( empty @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(192,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[38]) ).

thf(193,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( unordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(194,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[40]) ).

thf(195,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(196,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(197,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[45]) ).

thf(198,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[70]) ).

thf(199,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ! [C: $i] :
                  ( ( relation @ C )
                 => ( ( C
                      = ( relation_composition @ A @ B ) )
                  <=> ! [D: $i,E: $i] :
                        ( ( in @ ( ordered_pair @ D @ E ) @ C )
                      <=> ? [F: $i] :
                            ( ( in @ ( ordered_pair @ D @ F ) @ A )
                            & ( in @ ( ordered_pair @ F @ E ) @ B ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(200,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( ( B
                  = ( relation_inverse @ A ) )
              <=> ! [C: $i,D: $i] :
                    ( ( in @ ( ordered_pair @ C @ D ) @ B )
                  <=> ( in @ ( ordered_pair @ D @ C ) @ A ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[74]) ).

thf(201,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(202,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_difference @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                & ~ ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[79]) ).

thf(203,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( union @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ? [D: $i] :
                  ( ( in @ C @ D )
                  & ( in @ D @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(204,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_intersection2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                & ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[83]) ).

thf(205,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[84]) ).

thf(206,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( cartesian_product2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ? [E: $i,F: $i] :
                  ( ( in @ E @ A )
                  & ( in @ F @ B )
                  & ( D
                    = ( ordered_pair @ E @ F ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[85]) ).

thf(207,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_union2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                | ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[86]) ).

thf(208,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( unordered_pair @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( D = A )
                | ( D = B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[87]) ).

thf(209,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ~ ( empty @ A )
           => ( ( element @ B @ A )
            <=> ( in @ B @ A ) ) )
          & ( ( empty @ A )
           => ( ( element @ B @ A )
            <=> ( empty @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[88]) ).

thf(210,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[89]) ).

thf(211,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[91]) ).

thf(212,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[94]) ).

thf(213,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[95]) ).

thf(214,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[96]) ).

thf(215,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[100]) ).

thf(216,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[101]) ).

thf(217,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[102]) ).

thf(218,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[103]) ).

thf(219,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[104]) ).

thf(220,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ B ) )
         => ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[105]) ).

thf(221,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[106]) ).

thf(222,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[107]) ).

thf(223,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[108]) ).

thf(224,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[109]) ).

thf(225,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
            = A )
        <=> ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[110]) ).

thf(226,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[112]) ).

thf(227,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[113]) ).

thf(228,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( ~ ( disjoint @ A @ B )
              & ! [C: $i] :
                  ~ ( in @ C @ ( set_intersection2 @ A @ B ) ) )
          & ~ ( ? [C: $i] : ( in @ C @ ( set_intersection2 @ A @ B ) )
              & ( disjoint @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[118]) ).

thf(229,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[119]) ).

thf(230,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[123]) ).

thf(231,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[126]) ).

thf(232,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[130]) ).

thf(233,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( ~ ( disjoint @ A @ B )
              & ! [C: $i] :
                  ~ ( ( in @ C @ A )
                    & ( in @ C @ B ) ) )
          & ~ ( ? [C: $i] :
                  ( ( in @ C @ A )
                  & ( in @ C @ B ) )
              & ( disjoint @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[132]) ).

thf(234,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[134]) ).

thf(235,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ ( unordered_pair @ A @ B ) @ C )
        <=> ( ( in @ A @ C )
            & ( in @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[135]) ).

thf(236,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[136]) ).

thf(237,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[139]) ).

thf(238,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( ordered_pair @ A @ B )
            = ( ordered_pair @ C @ D ) )
         => ( ( A = C )
            & ( B = D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[140]) ).

thf(239,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[141]) ).

thf(240,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( ( in @ ( ordered_pair @ A @ B ) @ C )
           => ( ( in @ A @ ( relation_field @ C ) )
              & ( in @ B @ ( relation_field @ C ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[142]) ).

thf(241,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[144]) ).

thf(242,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[145]) ).

thf(243,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[150]) ).

thf(244,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ A @ C ) )
         => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[151]) ).

thf(245,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[152]) ).

thf(246,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( in @ A @ B )
          & ! [C: $i,D: $i] :
              ( ( ( in @ C @ B )
                & ( subset @ D @ C ) )
             => ( in @ D @ B ) )
          & ! [C: $i] :
              ( ( in @ C @ B )
             => ( in @ ( powerset @ C ) @ B ) )
          & ! [C: $i] :
              ~ ( ( subset @ C @ B )
                & ~ ( are_equipotent @ C @ B )
                & ~ ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[153]) ).

thf(247,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[154]) ).

thf(248,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ D ) )
         => ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[155]) ).

thf(249,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) )
            & ( subset @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[156]) ).

thf(250,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[158]) ).

thf(251,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) )
         => ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[159]) ).

thf(252,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[160]) ).

thf(253,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[161]) ).

thf(254,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( in @ C @ A )
            | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[163]) ).

thf(255,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ! [C: $i] :
              ( ( in @ C @ B )
             => ( in @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[164]) ).

thf(256,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[166]) ).

thf(257,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[167]) ).

thf(258,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( disjoint @ ( singleton @ A ) @ B )
            & ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[168]) ).

thf(259,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[169]) ).

thf(260,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(261,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(262,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(263,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(264,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(265,plain,
    ( ( ? [A: $i] :
          ( ~ ( empty @ A )
          & ( relation @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[22]) ).

thf(266,plain,
    ( ( ? [A: $i] :
          ( ( empty @ A )
          & ( relation @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[25]) ).

thf(267,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ( relation_inverse @ ( relation_inverse @ A ) )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[28]) ).

thf(268,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( ( empty @ ( relation_rng @ A ) )
            & ( relation @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[32]) ).

thf(269,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( ( empty @ ( relation_dom @ A ) )
            & ( relation @ ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[33]) ).

thf(270,plain,
    ( ( ! [A: $i] :
          ( ( ~ ( empty @ A )
            & ( relation @ A ) )
         => ~ ( empty @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(271,plain,
    ( ( ! [A: $i] :
          ( ( ~ ( empty @ A )
            & ( relation @ A ) )
         => ~ ( empty @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(272,plain,
    ( ( ( empty @ empty_set )
      & ( relation @ empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[37]) ).

thf(273,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( relation @ A )
            & ( relation @ B ) )
         => ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(274,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(unfold_def,[status(thm)],[44]) ).

thf(275,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( relation @ A )
            & ( relation @ B ) )
         => ( relation @ ( relation_composition @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(276,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( relation @ ( relation_inverse @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[55]) ).

thf(277,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(278,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(279,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( B
                = ( relation_rng @ A ) )
            <=> ! [C: $i] :
                  ( ( in @ C @ B )
                <=> ? [D: $i] : ( in @ ( ordered_pair @ D @ C ) @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[78]) ).

thf(280,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( B
                = ( relation_dom @ A ) )
            <=> ! [C: $i] :
                  ( ( in @ C @ B )
                <=> ? [D: $i] : ( in @ ( ordered_pair @ C @ D ) @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[82]) ).

thf(281,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[90]) ).

thf(282,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( A != empty_set )
           => ( ( B
                = ( set_meet @ A ) )
            <=> ! [C: $i] :
                  ( ( in @ C @ B )
                <=> ! [D: $i] :
                      ( ( in @ D @ A )
                     => ( in @ C @ D ) ) ) ) )
          & ( ( A = empty_set )
           => ( ( B
                = ( set_meet @ A ) )
            <=> ( B = empty_set ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[92]) ).

thf(283,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
        <=> ! [B: $i] :
              ~ ( ( in @ B @ A )
                & ! [C: $i,D: $i] :
                    ( B
                   != ( ordered_pair @ C @ D ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[93]) ).

thf(284,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( relation @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[98]) ).

thf(285,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ( ( ( relation_dom @ A )
                = empty_set )
              | ( ( relation_rng @ A )
                = empty_set ) )
           => ( A = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[111]) ).

thf(286,plain,
    ( ( ( ( relation_dom @ empty_set )
        = empty_set )
      & ( ( relation_rng @ empty_set )
        = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[114]) ).

thf(287,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ! [B: $i,C: $i] :
                ~ ( in @ ( ordered_pair @ B @ C ) @ A )
           => ( A = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[115]) ).

thf(288,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( ( subset @ ( relation_dom @ A ) @ ( relation_rng @ B ) )
               => ( ( relation_rng @ ( relation_composition @ B @ A ) )
                  = ( relation_rng @ A ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[122]) ).

thf(289,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( ( subset @ ( relation_rng @ A ) @ ( relation_dom @ B ) )
               => ( ( relation_dom @ ( relation_composition @ A @ B ) )
                  = ( relation_dom @ A ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[125]) ).

thf(290,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[127]) ).

thf(291,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[128]) ).

thf(292,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[131]) ).

thf(293,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[133]) ).

thf(294,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[137]) ).

thf(295,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ( ( relation_rng @ A )
              = ( relation_dom @ ( relation_inverse @ A ) ) )
            & ( ( relation_dom @ A )
              = ( relation_rng @ ( relation_inverse @ A ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[138]) ).

thf(296,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[143]) ).

thf(297,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( ( subset @ A @ B )
               => ( ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) )
                  & ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[146]) ).

thf(298,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[147]) ).

thf(299,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( ( in @ ( ordered_pair @ A @ B ) @ C )
           => ( ( in @ A @ ( relation_dom @ C ) )
              & ( in @ B @ ( relation_rng @ C ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[148]) ).

thf(300,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[149]) ).

thf(301,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[162]) ).

thf(302,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[165]) ).

thf(303,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[170]) ).

thf(304,plain,
    ( ( ( relation @ sK1_A )
     => ( ( ( relation_dom @ sK1_A )
          = empty_set )
      <=> ( ( relation_rng @ sK1_A )
          = empty_set ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[173]) ).

thf(305,plain,
    ( ( relation @ sK1_A )
    = $true ),
    inference(standard_cnf,[status(thm)],[304]) ).

thf(306,plain,
    ( ( ( ( relation_dom @ sK1_A )
        = empty_set )
    <=> ( ( relation_rng @ sK1_A )
        = empty_set ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[304]) ).

thf(307,plain,
    ( ( ( ( relation_dom @ sK1_A )
        = empty_set )
     => ( ( relation_rng @ sK1_A )
        = empty_set ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[306]) ).

thf(308,plain,
    ( ( ( ( relation_rng @ sK1_A )
        = empty_set )
     => ( ( relation_dom @ sK1_A )
        = empty_set ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[306]) ).

thf(309,plain,
    ( ( ~ ( ( ( relation_dom @ sK1_A )
            = empty_set )
         => ( ( relation_rng @ sK1_A )
            = empty_set ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[307]) ).

thf(310,plain,
    ( ( ~ ( ( ( relation_rng @ sK1_A )
            = empty_set )
         => ( ( relation_dom @ sK1_A )
            = empty_set ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[308]) ).

thf(311,plain,
    ( ( ( ( relation_dom @ sK1_A )
        = empty_set )
      & ( ( relation_rng @ sK1_A )
       != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[309]) ).

thf(312,plain,
    ( ( ( ( relation_rng @ sK1_A )
        = empty_set )
      & ( ( relation_dom @ sK1_A )
       != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[310]) ).

thf(313,plain,
    ( ( ! [A: $i] :
          ( ! [SY298: $i] :
              ( ~ ( subset @ SY298 @ ( sK2_B @ A ) )
              | ( are_equipotent @ SY298 @ ( sK2_B @ A ) )
              | ( in @ SY298 @ ( sK2_B @ A ) ) )
          & ! [SY299: $i] :
              ( ( ! [SY304: $i] :
                    ( ~ ( subset @ SY304 @ SY299 )
                    | ( in @ SY304 @ ( sK3_SY300 @ SY299 @ A ) ) )
                & ( in @ ( sK3_SY300 @ SY299 @ A ) @ ( sK2_B @ A ) ) )
              | ~ ( in @ SY299 @ ( sK2_B @ A ) ) )
          & ! [SY302: $i,SY303: $i] :
              ( ~ ( in @ SY302 @ ( sK2_B @ A ) )
              | ~ ( subset @ SY303 @ SY302 )
              | ( in @ SY303 @ ( sK2_B @ A ) ) )
          & ( in @ A @ ( sK2_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[174]) ).

thf(314,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[175]) ).

thf(315,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[176]) ).

thf(316,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[177]) ).

thf(317,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[178]) ).

thf(318,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ ( powerset @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[179]) ).

thf(319,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK4_C @ B @ A ) @ A )
              | ~ ( in @ ( sK4_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK4_C @ B @ A ) @ A )
              | ( in @ ( sK4_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[180]) ).

thf(320,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[181]) ).

thf(321,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[182]) ).

thf(322,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[183]) ).

thf(323,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[184]) ).

thf(324,plain,
    ( ( ~ ( empty @ sK5_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[185]) ).

thf(325,plain,
    ( ( ! [A: $i] :
          ( ( element @ ( sK6_B @ A ) @ ( powerset @ A ) )
          & ( empty @ ( sK6_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[186]) ).

thf(326,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(extcnf_combined,[status(esa)],[187]) ).

thf(327,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ( ( element @ ( sK8_B @ A ) @ ( powerset @ A ) )
            & ~ ( empty @ ( sK8_B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[188]) ).

thf(328,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[189]) ).

thf(329,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[190]) ).

thf(330,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( empty @ A )
          | ( empty @ B )
          | ~ ( empty @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[191]) ).

thf(331,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[192]) ).

thf(332,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[194]) ).

thf(333,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( subset @ A @ B )
          | ( proper_subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( A != B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( subset @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[198]) ).

thf(334,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( ! [C: $i] :
                    ( ~ ( relation @ C )
                    | ( ( ! [SY308: $i] :
                            ( ~ ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ SY308 ) @ A )
                            | ~ ( in @ ( ordered_pair @ SY308 @ ( sK11_SY305 @ C @ B @ A ) ) @ B ) )
                        | ~ ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ ( sK11_SY305 @ C @ B @ A ) ) @ C ) )
                      & ( ( ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ ( sK12_SY309 @ C @ B @ A ) ) @ A )
                          & ( in @ ( ordered_pair @ ( sK12_SY309 @ C @ B @ A ) @ ( sK11_SY305 @ C @ B @ A ) ) @ B ) )
                        | ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ ( sK11_SY305 @ C @ B @ A ) ) @ C ) ) )
                    | ( C
                      = ( relation_composition @ A @ B ) ) )
                & ! [C: $i] :
                    ( ~ ( relation @ C )
                    | ( C
                     != ( relation_composition @ A @ B ) )
                    | ( ! [D: $i,E: $i] :
                          ( ! [F: $i] :
                              ( ~ ( in @ ( ordered_pair @ D @ F ) @ A )
                              | ~ ( in @ ( ordered_pair @ F @ E ) @ B ) )
                          | ( in @ ( ordered_pair @ D @ E ) @ C ) )
                      & ! [D: $i,E: $i] :
                          ( ~ ( in @ ( ordered_pair @ D @ E ) @ C )
                          | ( ( in @ ( ordered_pair @ D @ ( sK9_F @ E @ D @ C @ B @ A ) ) @ A )
                            & ( in @ ( ordered_pair @ ( sK9_F @ E @ D @ C @ B @ A ) @ E ) @ B ) ) ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[199]) ).

thf(335,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ( ( ~ ( in @ ( ordered_pair @ ( sK13_C @ B @ A ) @ ( sK14_SY310 @ B @ A ) ) @ B )
                    | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ B @ A ) @ ( sK13_C @ B @ A ) ) @ A ) )
                  & ( ( in @ ( ordered_pair @ ( sK13_C @ B @ A ) @ ( sK14_SY310 @ B @ A ) ) @ B )
                    | ( in @ ( ordered_pair @ ( sK14_SY310 @ B @ A ) @ ( sK13_C @ B @ A ) ) @ A ) ) )
                | ( B
                  = ( relation_inverse @ A ) ) )
            & ! [B: $i] :
                ( ~ ( relation @ B )
                | ( B
                 != ( relation_inverse @ A ) )
                | ( ! [C: $i,D: $i] :
                      ( ~ ( in @ ( ordered_pair @ C @ D ) @ B )
                      | ( in @ ( ordered_pair @ D @ C ) @ A ) )
                  & ! [C: $i,D: $i] :
                      ( ~ ( in @ ( ordered_pair @ D @ C ) @ A )
                      | ( in @ ( ordered_pair @ C @ D ) @ B ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[200]) ).

thf(336,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK15_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK15_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK15_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK15_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK15_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK15_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK15_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_difference @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_difference @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ~ ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[202]) ).

thf(337,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY311: $i] :
                  ( ~ ( in @ ( sK17_C @ B @ A ) @ SY311 )
                  | ~ ( in @ SY311 @ A ) )
              | ~ ( in @ ( sK17_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK17_C @ B @ A ) @ ( sK18_SY312 @ B @ A ) )
                & ( in @ ( sK18_SY312 @ B @ A ) @ A ) )
              | ( in @ ( sK17_C @ B @ A ) @ B ) ) )
          | ( B
            = ( union @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( union @ A ) )
          | ( ! [C: $i] :
                ( ! [D: $i] :
                    ( ~ ( in @ C @ D )
                    | ~ ( in @ D @ A ) )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( ( in @ C @ ( sK16_D @ C @ B @ A ) )
                  & ( in @ ( sK16_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[203]) ).

thf(338,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_intersection2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_intersection2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ~ ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[204]) ).

thf(339,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK20_C @ B @ A ) @ A )
            & ~ ( in @ ( sK20_C @ B @ A ) @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ( in @ C @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[205]) ).

thf(340,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY314: $i,SY315: $i] :
                      ( ~ ( in @ SY314 @ A )
                      | ~ ( in @ SY315 @ B )
                      | ( ( sK23_D @ C @ B @ A )
                       != ( ordered_pair @ SY314 @ SY315 ) ) )
                  | ~ ( in @ ( sK23_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK24_SY316 @ C @ B @ A ) @ A )
                    & ( in @ ( sK25_SY318 @ C @ B @ A ) @ B )
                    & ( ( sK23_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK24_SY316 @ C @ B @ A ) @ ( sK25_SY318 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK23_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK21_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK22_SY313 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK21_E @ D @ C @ B @ A ) @ ( sK22_SY313 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[206]) ).

thf(341,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ B ) ) )
              | ( C
                = ( set_union2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_union2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A )
                    | ( in @ D @ B ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[207]) ).

thf(342,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                    = A )
                  | ( ( sK27_D @ C @ B @ A )
                    = B ) ) )
              | ( C
                = ( unordered_pair @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( unordered_pair @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( D = A )
                    | ( D = B ) )
                & ! [D: $i] :
                    ( ( D != A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ( D != B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[208]) ).

thf(343,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ( ~ ( element @ B @ A )
              | ( in @ B @ A ) ) )
      & ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ( ~ ( in @ B @ A )
              | ( element @ B @ A ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ! [B: $i] :
              ( ~ ( element @ B @ A )
              | ( empty @ B ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ! [B: $i] :
              ( ~ ( empty @ B )
              | ( element @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[209]) ).

thf(344,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK28_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK28_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK28_C @ B @ A ) @ B )
              | ( subset @ ( sK28_C @ B @ A ) @ A ) ) )
          | ( B
            = ( powerset @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( subset @ C @ A ) )
            & ! [C: $i] :
                ( ~ ( subset @ C @ A )
                | ( in @ C @ B ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[210]) ).

thf(345,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK29_C @ B @ A )
               != A )
              | ~ ( in @ ( sK29_C @ B @ A ) @ B ) )
            & ( ( ( sK29_C @ B @ A )
                = A )
              | ( in @ ( sK29_C @ B @ A ) @ B ) ) )
          | ( B
            = ( singleton @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( singleton @ A ) )
          | ( ! [C: $i] :
                ( ( C != A )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( C = A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[211]) ).

thf(346,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ A )
          | ( A = B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[212]) ).

thf(347,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[215]) ).

thf(348,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[216]) ).

thf(349,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[218]) ).

thf(350,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[219]) ).

thf(351,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[220]) ).

thf(352,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != A )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[221]) ).

thf(353,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[223]) ).

thf(354,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
           != A )
          | ~ ( in @ B @ A ) )
      & ! [A: $i,B: $i] :
          ( ( in @ B @ A )
          | ( ( set_difference @ A @ ( singleton @ B ) )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[225]) ).

thf(355,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[226]) ).

thf(356,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[227]) ).

thf(357,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK30_C @ B @ A ) @ ( set_intersection2 @ A @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ~ ( in @ C @ ( set_intersection2 @ A @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[228]) ).

thf(358,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[230]) ).

thf(359,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[231]) ).

thf(360,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK31_C @ B @ A ) @ A )
            & ( in @ ( sK31_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[233]) ).

thf(361,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ C )
              | ( subset @ ( unordered_pair @ A @ B ) @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ A @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[235]) ).

thf(362,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[236]) ).

thf(363,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ! [D: $i] :
                  ( ( ordered_pair @ A @ B )
                 != ( ordered_pair @ C @ D ) )
              | ( A = C ) )
          & ! [C: $i,D: $i] :
              ( ( ( ordered_pair @ A @ B )
               != ( ordered_pair @ C @ D ) )
              | ( B = D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[238]) ).

thf(364,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[239]) ).

thf(365,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ A @ ( relation_field @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ B @ ( relation_field @ C ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[240]) ).

thf(366,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[241]) ).

thf(367,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[242]) ).

thf(368,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[243]) ).

thf(369,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[244]) ).

thf(370,plain,
    ( ( ! [A: $i] :
          ( ! [SY319: $i] :
              ( ~ ( subset @ SY319 @ ( sK32_B @ A ) )
              | ( are_equipotent @ SY319 @ ( sK32_B @ A ) )
              | ( in @ SY319 @ ( sK32_B @ A ) ) )
          & ! [SY320: $i] :
              ( ~ ( in @ SY320 @ ( sK32_B @ A ) )
              | ( in @ ( powerset @ SY320 ) @ ( sK32_B @ A ) ) )
          & ! [SY321: $i,SY322: $i] :
              ( ~ ( in @ SY321 @ ( sK32_B @ A ) )
              | ~ ( subset @ SY322 @ SY321 )
              | ( in @ SY322 @ ( sK32_B @ A ) ) )
          & ( in @ A @ ( sK32_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[246]) ).

thf(371,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[247]) ).

thf(372,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ D )
          | ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[248]) ).

thf(373,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i] :
              ( ~ ( subset @ A @ B )
              | ! [C: $i] : ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) ) )
          & ! [B: $i] :
              ( ~ ( subset @ A @ B )
              | ! [C: $i] : ( subset @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[249]) ).

thf(374,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[250]) ).

thf(375,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK33_C @ B @ A ) @ A )
            & ~ ( in @ ( sK33_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[251]) ).

thf(376,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[252]) ).

thf(377,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[253]) ).

thf(378,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ( in @ C @ A )
              | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[254]) ).

thf(379,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[255]) ).

thf(380,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[256]) ).

thf(381,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[257]) ).

thf(382,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[258]) ).

thf(383,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[259]) ).

thf(384,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[260]) ).

thf(385,plain,
    ( ( ~ ( empty @ sK34_A )
      & ( relation @ sK34_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[265]) ).

thf(386,plain,
    ( ( ( empty @ sK35_A )
      & ( relation @ sK35_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[266]) ).

thf(387,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_inverse @ ( relation_inverse @ A ) )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[267]) ).

thf(388,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( empty @ ( relation_rng @ A ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[268]) ).

thf(389,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( empty @ ( relation_dom @ A ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[269]) ).

thf(390,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[270]) ).

thf(391,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[271]) ).

thf(392,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[273]) ).

thf(393,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( relation_composition @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[275]) ).

thf(394,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( relation @ ( relation_inverse @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[276]) ).

thf(395,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_intersection2 @ A @ B )
           != empty_set )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[277]) ).

thf(396,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[278]) ).

thf(397,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY323: $i] :
                        ~ ( in @ ( ordered_pair @ SY323 @ ( sK37_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK37_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK38_SY324 @ B @ A ) @ ( sK37_C @ B @ A ) ) @ A )
                    | ( in @ ( sK37_C @ B @ A ) @ B ) ) )
                | ( B
                  = ( relation_rng @ A ) ) )
            & ! [B: $i] :
                ( ( B
                 != ( relation_rng @ A ) )
                | ( ! [C: $i] :
                      ( ! [D: $i] :
                          ~ ( in @ ( ordered_pair @ D @ C ) @ A )
                      | ( in @ C @ B ) )
                  & ! [C: $i] :
                      ( ~ ( in @ C @ B )
                      | ( in @ ( ordered_pair @ ( sK36_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[279]) ).

thf(398,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY325: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK40_C @ B @ A ) @ SY325 ) @ A )
                    | ~ ( in @ ( sK40_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK40_C @ B @ A ) @ ( sK41_SY326 @ B @ A ) ) @ A )
                    | ( in @ ( sK40_C @ B @ A ) @ B ) ) )
                | ( B
                  = ( relation_dom @ A ) ) )
            & ! [B: $i] :
                ( ( B
                 != ( relation_dom @ A ) )
                | ( ! [C: $i] :
                      ( ! [D: $i] :
                          ~ ( in @ ( ordered_pair @ C @ D ) @ A )
                      | ( in @ C @ B ) )
                  & ! [C: $i] :
                      ( ~ ( in @ C @ B )
                      | ( in @ ( ordered_pair @ C @ ( sK39_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[280]) ).

thf(399,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK42_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[281]) ).

thf(400,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK45_SY327 @ B @ A ) @ A )
                    & ~ ( in @ ( sK44_C @ B @ A ) @ ( sK45_SY327 @ B @ A ) ) )
                  | ~ ( in @ ( sK44_C @ B @ A ) @ B ) )
                & ( ! [SY328: $i] :
                      ( ~ ( in @ SY328 @ A )
                      | ( in @ ( sK44_C @ B @ A ) @ SY328 ) )
                  | ( in @ ( sK44_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK43_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK43_D @ C @ B @ A ) ) )
                    | ( in @ C @ B ) )
                & ! [C: $i] :
                    ( ~ ( in @ C @ B )
                    | ! [D: $i] :
                        ( ~ ( in @ D @ A )
                        | ( in @ C @ D ) ) ) ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( B = empty_set ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ( ( B != empty_set )
              | ( B
                = ( set_meet @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[282]) ).

thf(401,plain,
    ( ( ! [A: $i] :
          ( ( ! [SY330: $i,SY331: $i] :
                ( ( sK48_B @ A )
               != ( ordered_pair @ SY330 @ SY331 ) )
            & ( in @ ( sK48_B @ A ) @ A ) )
          | ( relation @ A ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ( B
                = ( ordered_pair @ ( sK46_C @ B @ A ) @ ( sK47_SY329 @ B @ A ) ) )
              | ~ ( in @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[283]) ).

thf(402,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[284]) ).

thf(403,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_dom @ A )
           != empty_set )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_rng @ A )
           != empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[285]) ).

thf(404,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( in @ ( ordered_pair @ ( sK49_B @ A ) @ ( sK50_SY332 @ A ) ) @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[287]) ).

thf(405,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ~ ( subset @ ( relation_dom @ A ) @ ( relation_rng @ B ) )
              | ( ( relation_rng @ ( relation_composition @ B @ A ) )
                = ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[288]) ).

thf(406,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ~ ( subset @ ( relation_rng @ A ) @ ( relation_dom @ B ) )
              | ( ( relation_dom @ ( relation_composition @ A @ B ) )
                = ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[289]) ).

thf(407,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[290]) ).

thf(408,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[291]) ).

thf(409,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[292]) ).

thf(410,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[293]) ).

thf(411,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[294]) ).

thf(412,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_rng @ A )
            = ( relation_dom @ ( relation_inverse @ A ) ) ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_dom @ A )
            = ( relation_rng @ ( relation_inverse @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[295]) ).

thf(413,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) ) )
            & ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[297]) ).

thf(414,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[298]) ).

thf(415,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ A @ ( relation_dom @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ B @ ( relation_rng @ C ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[299]) ).

thf(416,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[301]) ).

thf(417,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[302]) ).

thf(418,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[303]) ).

thf(419,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[418]) ).

thf(420,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[417]) ).

thf(421,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[416]) ).

thf(422,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[300]) ).

thf(423,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ A @ ( relation_dom @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ B @ ( relation_rng @ C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[415]) ).

thf(424,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[414]) ).

thf(425,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) ) )
            & ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[413]) ).

thf(426,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[296]) ).

thf(427,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_rng @ A )
            = ( relation_dom @ ( relation_inverse @ A ) ) ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_dom @ A )
            = ( relation_rng @ ( relation_inverse @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[412]) ).

thf(428,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[411]) ).

thf(429,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[410]) ).

thf(430,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[409]) ).

thf(431,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[408]) ).

thf(432,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[407]) ).

thf(433,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ~ ( subset @ ( relation_rng @ A ) @ ( relation_dom @ B ) )
              | ( ( relation_dom @ ( relation_composition @ A @ B ) )
                = ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[406]) ).

thf(434,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ~ ( subset @ ( relation_dom @ A ) @ ( relation_rng @ B ) )
              | ( ( relation_rng @ ( relation_composition @ B @ A ) )
                = ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[405]) ).

thf(435,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( in @ ( ordered_pair @ ( sK49_B @ A ) @ ( sK50_SY332 @ A ) ) @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[404]) ).

thf(436,plain,
    ( ( ( ( relation_dom @ empty_set )
        = empty_set )
      & ( ( relation_rng @ empty_set )
        = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[286]) ).

thf(437,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_dom @ A )
           != empty_set )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_rng @ A )
           != empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[403]) ).

thf(438,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[402]) ).

thf(439,plain,
    ( ( ! [A: $i] :
          ( ( ! [SY330: $i,SY331: $i] :
                ( ( sK48_B @ A )
               != ( ordered_pair @ SY330 @ SY331 ) )
            & ( in @ ( sK48_B @ A ) @ A ) )
          | ( relation @ A ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ( B
                = ( ordered_pair @ ( sK46_C @ B @ A ) @ ( sK47_SY329 @ B @ A ) ) )
              | ~ ( in @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[401]) ).

thf(440,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK45_SY327 @ B @ A ) @ A )
                    & ~ ( in @ ( sK44_C @ B @ A ) @ ( sK45_SY327 @ B @ A ) ) )
                  | ~ ( in @ ( sK44_C @ B @ A ) @ B ) )
                & ( ! [SY328: $i] :
                      ( ~ ( in @ SY328 @ A )
                      | ( in @ ( sK44_C @ B @ A ) @ SY328 ) )
                  | ( in @ ( sK44_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK43_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK43_D @ C @ B @ A ) ) )
                    | ( in @ C @ B ) )
                & ! [C: $i] :
                    ( ~ ( in @ C @ B )
                    | ! [D: $i] :
                        ( ~ ( in @ D @ A )
                        | ( in @ C @ D ) ) ) ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( B = empty_set ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ( ( B != empty_set )
              | ( B
                = ( set_meet @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[400]) ).

thf(441,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK42_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[399]) ).

thf(442,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY325: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK40_C @ B @ A ) @ SY325 ) @ A )
                    | ~ ( in @ ( sK40_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK40_C @ B @ A ) @ ( sK41_SY326 @ B @ A ) ) @ A )
                    | ( in @ ( sK40_C @ B @ A ) @ B ) ) )
                | ( B
                  = ( relation_dom @ A ) ) )
            & ! [B: $i] :
                ( ( B
                 != ( relation_dom @ A ) )
                | ( ! [C: $i] :
                      ( ! [D: $i] :
                          ~ ( in @ ( ordered_pair @ C @ D ) @ A )
                      | ( in @ C @ B ) )
                  & ! [C: $i] :
                      ( ~ ( in @ C @ B )
                      | ( in @ ( ordered_pair @ C @ ( sK39_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[398]) ).

thf(443,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY323: $i] :
                        ~ ( in @ ( ordered_pair @ SY323 @ ( sK37_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK37_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK38_SY324 @ B @ A ) @ ( sK37_C @ B @ A ) ) @ A )
                    | ( in @ ( sK37_C @ B @ A ) @ B ) ) )
                | ( B
                  = ( relation_rng @ A ) ) )
            & ! [B: $i] :
                ( ( B
                 != ( relation_rng @ A ) )
                | ( ! [C: $i] :
                      ( ! [D: $i] :
                          ~ ( in @ ( ordered_pair @ D @ C ) @ A )
                      | ( in @ C @ B ) )
                  & ! [C: $i] :
                      ( ~ ( in @ C @ B )
                      | ( in @ ( ordered_pair @ ( sK36_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[397]) ).

thf(444,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[396]) ).

thf(445,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_intersection2 @ A @ B )
           != empty_set )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[395]) ).

thf(446,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( relation @ ( relation_inverse @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[394]) ).

thf(447,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( relation_composition @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[393]) ).

thf(448,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[274]) ).

thf(449,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[392]) ).

thf(450,plain,
    ( ( ( empty @ empty_set )
      & ( relation @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[272]) ).

thf(451,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[391]) ).

thf(452,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[390]) ).

thf(453,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( empty @ ( relation_dom @ A ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[389]) ).

thf(454,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( empty @ ( relation_rng @ A ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[388]) ).

thf(455,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_inverse @ ( relation_inverse @ A ) )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[387]) ).

thf(456,plain,
    ( ( ( empty @ sK35_A )
      & ( relation @ sK35_A ) )
    = $true ),
    inference(copy,[status(thm)],[386]) ).

thf(457,plain,
    ( ( ~ ( empty @ sK34_A )
      & ( relation @ sK34_A ) )
    = $true ),
    inference(copy,[status(thm)],[385]) ).

thf(458,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[264]) ).

thf(459,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[263]) ).

thf(460,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[262]) ).

thf(461,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[261]) ).

thf(462,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[384]) ).

thf(463,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[383]) ).

thf(464,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[382]) ).

thf(465,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[381]) ).

thf(466,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[380]) ).

thf(467,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[379]) ).

thf(468,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ( in @ C @ A )
              | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[378]) ).

thf(469,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[377]) ).

thf(470,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[376]) ).

thf(471,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK33_C @ B @ A ) @ A )
            & ~ ( in @ ( sK33_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[375]) ).

thf(472,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[374]) ).

thf(473,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i] :
              ( ~ ( subset @ A @ B )
              | ! [C: $i] : ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) ) )
          & ! [B: $i] :
              ( ~ ( subset @ A @ B )
              | ! [C: $i] : ( subset @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[373]) ).

thf(474,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ D )
          | ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[372]) ).

thf(475,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[371]) ).

thf(476,plain,
    ( ( ! [A: $i] :
          ( ! [SY319: $i] :
              ( ~ ( subset @ SY319 @ ( sK32_B @ A ) )
              | ( are_equipotent @ SY319 @ ( sK32_B @ A ) )
              | ( in @ SY319 @ ( sK32_B @ A ) ) )
          & ! [SY320: $i] :
              ( ~ ( in @ SY320 @ ( sK32_B @ A ) )
              | ( in @ ( powerset @ SY320 ) @ ( sK32_B @ A ) ) )
          & ! [SY321: $i,SY322: $i] :
              ( ~ ( in @ SY321 @ ( sK32_B @ A ) )
              | ~ ( subset @ SY322 @ SY321 )
              | ( in @ SY322 @ ( sK32_B @ A ) ) )
          & ( in @ A @ ( sK32_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[370]) ).

thf(477,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[245]) ).

thf(478,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[369]) ).

thf(479,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[368]) ).

thf(480,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[367]) ).

thf(481,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[366]) ).

thf(482,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ A @ ( relation_field @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ B @ ( relation_field @ C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[365]) ).

thf(483,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[364]) ).

thf(484,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ! [D: $i] :
                  ( ( ordered_pair @ A @ B )
                 != ( ordered_pair @ C @ D ) )
              | ( A = C ) )
          & ! [C: $i,D: $i] :
              ( ( ( ordered_pair @ A @ B )
               != ( ordered_pair @ C @ D ) )
              | ( B = D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[363]) ).

thf(485,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[237]) ).

thf(486,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[362]) ).

thf(487,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ C )
              | ( subset @ ( unordered_pair @ A @ B ) @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ A @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[361]) ).

thf(488,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[234]) ).

thf(489,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK31_C @ B @ A ) @ A )
            & ( in @ ( sK31_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[360]) ).

thf(490,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(491,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[359]) ).

thf(492,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[358]) ).

thf(493,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[229]) ).

thf(494,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK30_C @ B @ A ) @ ( set_intersection2 @ A @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ~ ( in @ C @ ( set_intersection2 @ A @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[357]) ).

thf(495,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[356]) ).

thf(496,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[355]) ).

thf(497,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
           != A )
          | ~ ( in @ B @ A ) )
      & ! [A: $i,B: $i] :
          ( ( in @ B @ A )
          | ( ( set_difference @ A @ ( singleton @ B ) )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[354]) ).

thf(498,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[224]) ).

thf(499,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[353]) ).

thf(500,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[222]) ).

thf(501,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != A )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[352]) ).

thf(502,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[351]) ).

thf(503,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[350]) ).

thf(504,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[349]) ).

thf(505,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[217]) ).

thf(506,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[348]) ).

thf(507,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[347]) ).

thf(508,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[214]) ).

thf(509,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[213]) ).

thf(510,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ A )
          | ( A = B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[346]) ).

thf(511,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK29_C @ B @ A )
               != A )
              | ~ ( in @ ( sK29_C @ B @ A ) @ B ) )
            & ( ( ( sK29_C @ B @ A )
                = A )
              | ( in @ ( sK29_C @ B @ A ) @ B ) ) )
          | ( B
            = ( singleton @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( singleton @ A ) )
          | ( ! [C: $i] :
                ( ( C != A )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( C = A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[345]) ).

thf(512,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK28_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK28_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK28_C @ B @ A ) @ B )
              | ( subset @ ( sK28_C @ B @ A ) @ A ) ) )
          | ( B
            = ( powerset @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( subset @ C @ A ) )
            & ! [C: $i] :
                ( ~ ( subset @ C @ A )
                | ( in @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[344]) ).

thf(513,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ( ~ ( element @ B @ A )
              | ( in @ B @ A ) ) )
      & ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ( ~ ( in @ B @ A )
              | ( element @ B @ A ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ! [B: $i] :
              ( ~ ( element @ B @ A )
              | ( empty @ B ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ! [B: $i] :
              ( ~ ( empty @ B )
              | ( element @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[343]) ).

thf(514,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                    = A )
                  | ( ( sK27_D @ C @ B @ A )
                    = B ) ) )
              | ( C
                = ( unordered_pair @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( unordered_pair @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( D = A )
                    | ( D = B ) )
                & ! [D: $i] :
                    ( ( D != A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ( D != B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[342]) ).

thf(515,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ B ) ) )
              | ( C
                = ( set_union2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_union2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A )
                    | ( in @ D @ B ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[341]) ).

thf(516,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY314: $i,SY315: $i] :
                      ( ~ ( in @ SY314 @ A )
                      | ~ ( in @ SY315 @ B )
                      | ( ( sK23_D @ C @ B @ A )
                       != ( ordered_pair @ SY314 @ SY315 ) ) )
                  | ~ ( in @ ( sK23_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK24_SY316 @ C @ B @ A ) @ A )
                    & ( in @ ( sK25_SY318 @ C @ B @ A ) @ B )
                    & ( ( sK23_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK24_SY316 @ C @ B @ A ) @ ( sK25_SY318 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK23_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK21_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK22_SY313 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK21_E @ D @ C @ B @ A ) @ ( sK22_SY313 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[340]) ).

thf(517,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK20_C @ B @ A ) @ A )
            & ~ ( in @ ( sK20_C @ B @ A ) @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[339]) ).

thf(518,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_intersection2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_intersection2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ~ ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[338]) ).

thf(519,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY311: $i] :
                  ( ~ ( in @ ( sK17_C @ B @ A ) @ SY311 )
                  | ~ ( in @ SY311 @ A ) )
              | ~ ( in @ ( sK17_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK17_C @ B @ A ) @ ( sK18_SY312 @ B @ A ) )
                & ( in @ ( sK18_SY312 @ B @ A ) @ A ) )
              | ( in @ ( sK17_C @ B @ A ) @ B ) ) )
          | ( B
            = ( union @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( union @ A ) )
          | ( ! [C: $i] :
                ( ! [D: $i] :
                    ( ~ ( in @ C @ D )
                    | ~ ( in @ D @ A ) )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( ( in @ C @ ( sK16_D @ C @ B @ A ) )
                  & ( in @ ( sK16_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[337]) ).

thf(520,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK15_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK15_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK15_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK15_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK15_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK15_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK15_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_difference @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_difference @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ~ ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[336]) ).

thf(521,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[201]) ).

thf(522,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ( ( ~ ( in @ ( ordered_pair @ ( sK13_C @ B @ A ) @ ( sK14_SY310 @ B @ A ) ) @ B )
                    | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ B @ A ) @ ( sK13_C @ B @ A ) ) @ A ) )
                  & ( ( in @ ( ordered_pair @ ( sK13_C @ B @ A ) @ ( sK14_SY310 @ B @ A ) ) @ B )
                    | ( in @ ( ordered_pair @ ( sK14_SY310 @ B @ A ) @ ( sK13_C @ B @ A ) ) @ A ) ) )
                | ( B
                  = ( relation_inverse @ A ) ) )
            & ! [B: $i] :
                ( ~ ( relation @ B )
                | ( B
                 != ( relation_inverse @ A ) )
                | ( ! [C: $i,D: $i] :
                      ( ~ ( in @ ( ordered_pair @ C @ D ) @ B )
                      | ( in @ ( ordered_pair @ D @ C ) @ A ) )
                  & ! [C: $i,D: $i] :
                      ( ~ ( in @ ( ordered_pair @ D @ C ) @ A )
                      | ( in @ ( ordered_pair @ C @ D ) @ B ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[335]) ).

thf(523,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( ! [C: $i] :
                    ( ~ ( relation @ C )
                    | ( ( ! [SY308: $i] :
                            ( ~ ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ SY308 ) @ A )
                            | ~ ( in @ ( ordered_pair @ SY308 @ ( sK11_SY305 @ C @ B @ A ) ) @ B ) )
                        | ~ ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ ( sK11_SY305 @ C @ B @ A ) ) @ C ) )
                      & ( ( ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ ( sK12_SY309 @ C @ B @ A ) ) @ A )
                          & ( in @ ( ordered_pair @ ( sK12_SY309 @ C @ B @ A ) @ ( sK11_SY305 @ C @ B @ A ) ) @ B ) )
                        | ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ ( sK11_SY305 @ C @ B @ A ) ) @ C ) ) )
                    | ( C
                      = ( relation_composition @ A @ B ) ) )
                & ! [C: $i] :
                    ( ~ ( relation @ C )
                    | ( C
                     != ( relation_composition @ A @ B ) )
                    | ( ! [D: $i,E: $i] :
                          ( ! [F: $i] :
                              ( ~ ( in @ ( ordered_pair @ D @ F ) @ A )
                              | ~ ( in @ ( ordered_pair @ F @ E ) @ B ) )
                          | ( in @ ( ordered_pair @ D @ E ) @ C ) )
                      & ! [D: $i,E: $i] :
                          ( ~ ( in @ ( ordered_pair @ D @ E ) @ C )
                          | ( ( in @ ( ordered_pair @ D @ ( sK9_F @ E @ D @ C @ B @ A ) ) @ A )
                            & ( in @ ( ordered_pair @ ( sK9_F @ E @ D @ C @ B @ A ) @ E ) @ B ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[334]) ).

thf(524,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( subset @ A @ B )
          | ( proper_subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( A != B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[333]) ).

thf(525,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[197]) ).

thf(526,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[196]) ).

thf(527,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[195]) ).

thf(528,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[332]) ).

thf(529,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( unordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[193]) ).

thf(530,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[331]) ).

thf(531,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( empty @ A )
          | ( empty @ B )
          | ~ ( empty @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[330]) ).

thf(532,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[329]) ).

thf(533,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[328]) ).

thf(534,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ( ( element @ ( sK8_B @ A ) @ ( powerset @ A ) )
            & ~ ( empty @ ( sK8_B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[327]) ).

thf(535,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(copy,[status(thm)],[326]) ).

thf(536,plain,
    ( ( ! [A: $i] :
          ( ( element @ ( sK6_B @ A ) @ ( powerset @ A ) )
          & ( empty @ ( sK6_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[325]) ).

thf(537,plain,
    ( ( ~ ( empty @ sK5_A ) )
    = $true ),
    inference(copy,[status(thm)],[324]) ).

thf(538,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[323]) ).

thf(539,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[322]) ).

thf(540,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[321]) ).

thf(541,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[320]) ).

thf(542,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK4_C @ B @ A ) @ A )
              | ~ ( in @ ( sK4_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK4_C @ B @ A ) @ A )
              | ( in @ ( sK4_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[319]) ).

thf(543,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ ( powerset @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[318]) ).

thf(544,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[317]) ).

thf(545,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[316]) ).

thf(546,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[315]) ).

thf(547,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[314]) ).

thf(548,plain,
    ( ( ! [A: $i] :
          ( ! [SY298: $i] :
              ( ~ ( subset @ SY298 @ ( sK2_B @ A ) )
              | ( are_equipotent @ SY298 @ ( sK2_B @ A ) )
              | ( in @ SY298 @ ( sK2_B @ A ) ) )
          & ! [SY299: $i] :
              ( ( ! [SY304: $i] :
                    ( ~ ( subset @ SY304 @ SY299 )
                    | ( in @ SY304 @ ( sK3_SY300 @ SY299 @ A ) ) )
                & ( in @ ( sK3_SY300 @ SY299 @ A ) @ ( sK2_B @ A ) ) )
              | ~ ( in @ SY299 @ ( sK2_B @ A ) ) )
          & ! [SY302: $i,SY303: $i] :
              ( ~ ( in @ SY302 @ ( sK2_B @ A ) )
              | ~ ( subset @ SY303 @ SY302 )
              | ( in @ SY303 @ ( sK2_B @ A ) ) )
          & ( in @ A @ ( sK2_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[313]) ).

thf(549,plain,
    ( ( relation @ sK1_A )
    = $true ),
    inference(copy,[status(thm)],[305]) ).

thf(550,plain,
    ( ( ( ( relation_dom @ sK1_A )
        = empty_set )
      & ( ( relation_rng @ sK1_A )
       != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[311]) ).

thf(551,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[486]) ).

thf(552,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX1 @ SX0 )
                | ( SX0 = SX1 ) )
          | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0 != SX1 )
                      | ( subset @ SX0 @ SX1 ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0 != SX1 )
                      | ( subset @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[510]) ).

thf(553,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0 = SX1 )
                | ~ ( subset @ SX0 @ SX1 )
                | ( proper_subset @ SX0 @ SX1 ) )
          | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( proper_subset @ SX0 @ SX1 )
                      | ( SX0 != SX1 ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( proper_subset @ SX0 @ SX1 )
                      | ( subset @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[524]) ).

thf(554,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK30_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ! [SX2: $i] :
                    ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
                | ~ ( disjoint @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[494]) ).

thf(555,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[471]) ).

thf(556,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[472]) ).

thf(557,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX0 @ SX1 )
                  | ! [SX2: $i] : ( subset @ ( cartesian_product2 @ SX0 @ SX2 ) @ ( cartesian_product2 @ SX1 @ SX2 ) ) )
            | ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX0 @ SX1 )
                  | ! [SX2: $i] : ( subset @ ( cartesian_product2 @ SX2 @ SX0 ) @ ( cartesian_product2 @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[473]) ).

thf(558,plain,
    ( ( ~ ( ~ ( empty @ empty_set )
          | ~ ( relation @ empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[450]) ).

thf(559,plain,
    ( ( ~ ( ( ( relation_dom @ empty_set )
           != empty_set )
          | ( ( relation_rng @ empty_set )
           != empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[436]) ).

thf(560,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ SX1 )
                 != SX0 )
                | ( disjoint @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( disjoint @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[501]) ).

thf(561,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX0 @ ( relation_dom @ SX2 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX1 @ ( relation_rng @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[423]) ).

thf(562,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ( empty @ ( relation_rng @ SX0 ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ( relation @ ( relation_rng @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[454]) ).

thf(563,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK4_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK4_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK4_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK4_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[542]) ).

thf(564,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                  | ( SX2
                    = ( set_union2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_union2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[515]) ).

thf(565,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ~ ( in @ SX2 @ SX1 ) )
                | ~ ( disjoint @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[489]) ).

thf(566,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_difference @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_difference @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX0 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ~ ( in @ SX3 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[520]) ).

thf(567,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ SX1 )
                 != empty_set )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[428]) ).

thf(568,plain,
    ( ( ~ ( ~ ~ ( empty @ sK34_A )
          | ~ ( relation @ sK34_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[457]) ).

thf(569,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[517]) ).

thf(570,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_intersection2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_intersection2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ~ ( in @ SX3 @ SX1 )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX0 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[518]) ).

thf(571,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ SX1 )
                 != empty_set )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[420]) ).

thf(572,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK32_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK32_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK32_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( in @ SX1 @ ( sK32_B @ SX0 ) )
                        | ( in @ ( powerset @ SX1 ) @ ( sK32_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK32_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK32_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK32_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[476]) ).

thf(573,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[470]) ).

thf(574,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK29_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK29_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( singleton @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( singleton @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ( SX2 != SX0 )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ( SX2 = SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[511]) ).

thf(575,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ! [SX2: $i] :
                            ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX2 )
                            | ~ ( in @ SX2 @ SX0 ) )
                        | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ~ ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY312 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK18_SY312 @ SX1 @ SX0 ) @ SX0 ) )
                        | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( union @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( union @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ! [SX3: $i] :
                              ( ~ ( in @ SX2 @ SX3 )
                              | ~ ( in @ SX3 @ SX0 ) )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ~ ( ~ ( in @ SX2 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) )
                              | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[519]) ).

thf(576,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ( ( relation_dom @ SX0 )
                 != empty_set )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ( ( relation_rng @ SX0 )
                 != empty_set )
                | ( SX0 = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[437]) ).

thf(577,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0
                       != ( singleton @ SX1 ) )
                      | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[429]) ).

thf(578,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK2_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK2_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK2_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( ~ ! [SX2: $i] :
                                  ( ~ ( subset @ SX2 @ SX1 )
                                  | ( in @ SX2 @ ( sK3_SY300 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK3_SY300 @ SX1 @ SX0 ) @ ( sK2_B @ SX0 ) ) )
                        | ~ ( in @ SX1 @ ( sK2_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK2_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK2_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK2_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[548]) ).

thf(579,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ( ( relation_rng @ SX0 )
                  = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ( ( relation_dom @ SX0 )
                  = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[427]) ).

thf(580,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ! [SX3: $i,SX4: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX4 @ SX1 )
                              | ( ( sK23_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ SX3 @ SX4 ) ) )
                          | ~ ( in @ ( sK23_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ( in @ ( sK25_SY318 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                              | ( ( sK23_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ ( sK24_SY316 @ SX2 @ SX1 @ SX0 ) @ ( sK25_SY318 @ SX2 @ SX1 @ SX0 ) ) ) )
                          | ( in @ ( sK23_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) )
                  | ( SX2
                    = ( cartesian_product2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( cartesian_product2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ! [SX4: $i,SX5: $i] :
                                ( ~ ( in @ SX4 @ SX0 )
                                | ~ ( in @ SX5 @ SX1 )
                                | ( SX3
                                 != ( ordered_pair @ SX4 @ SX5 ) ) )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ( in @ ( sK22_SY313 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                                | ( SX3
                                 != ( ordered_pair @ ( sK21_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ ( sK22_SY313 @ SX3 @ SX2 @ SX1 @ SX0 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[516]) ).

thf(581,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK40_C @ SX1 @ SX0 ) @ SX2 ) @ SX0 )
                            | ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SX1 @ SX0 ) @ ( sK41_SY326 @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( relation_dom @ SX0 ) ) )
              | ~ ! [SX1: $i] :
                    ( ( SX1
                     != ( relation_dom @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ! [SX3: $i] :
                                  ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 )
                              | ( in @ SX2 @ SX1 ) )
                        | ~ ! [SX2: $i] :
                              ( ~ ( in @ SX2 @ SX1 )
                              | ( in @ ( ordered_pair @ SX2 @ ( sK39_D @ SX2 @ SX1 @ SX0 ) ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[442]) ).

thf(582,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ( element @ ( sK6_B @ SX0 ) @ ( powerset @ SX0 ) )
            | ~ ( empty @ ( sK6_B @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[536]) ).

thf(583,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[466]) ).

thf(584,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_intersection2 @ SX0 @ SX1 )
                 != empty_set )
                | ( disjoint @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( disjoint @ SX0 @ SX1 )
                | ( ( set_intersection2 @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[445]) ).

thf(585,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ SX2 @ ( sK37_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SX1 @ SX0 ) @ ( sK37_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( relation_rng @ SX0 ) ) )
              | ~ ! [SX1: $i] :
                    ( ( SX1
                     != ( relation_rng @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ! [SX3: $i] :
                                  ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 )
                              | ( in @ SX2 @ SX1 ) )
                        | ~ ! [SX2: $i] :
                              ( ~ ( in @ SX2 @ SX1 )
                              | ( in @ ( ordered_pair @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[443]) ).

thf(586,plain,
    ( ( ~ ( ~ ( empty @ sK35_A )
          | ~ ( relation @ sK35_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[456]) ).

thf(587,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                                  | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                              | ~ ( ! [SX2: $i] :
                                      ( ~ ( in @ SX2 @ SX0 )
                                      | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                                  | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ~ ( ~ ! [SX2: $i] :
                                    ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                        | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                                    | ( in @ SX2 @ SX1 ) )
                              | ~ ! [SX2: $i] :
                                    ( ~ ( in @ SX2 @ SX1 )
                                    | ! [SX3: $i] :
                                        ( ~ ( in @ SX3 @ SX0 )
                                        | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ( SX1 = empty_set ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1 != empty_set )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[440]) ).

thf(588,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                            = SX1 ) ) )
                  | ( SX2
                    = ( unordered_pair @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( unordered_pair @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( SX3 = SX0 )
                            | ( SX3 = SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ( SX3 != SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[514]) ).

thf(589,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
                 != SX0 )
                | ~ ( in @ SX1 @ SX0 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( in @ SX1 @ SX0 )
                | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
                  = SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[497]) ).

thf(590,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( empty @ SX0 )
                      | ! [SX1: $i] :
                          ( ~ ( element @ SX1 @ SX0 )
                          | ( in @ SX1 @ SX0 ) ) )
                | ~ ! [SX0: $i] :
                      ( ( empty @ SX0 )
                      | ! [SX1: $i] :
                          ( ~ ( in @ SX1 @ SX0 )
                          | ( element @ SX1 @ SX0 ) ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ~ ( empty @ SX0 )
                      | ! [SX1: $i] :
                          ( ~ ( element @ SX1 @ SX0 )
                          | ( empty @ SX1 ) ) )
                | ~ ! [SX0: $i] :
                      ( ~ ( empty @ SX0 )
                      | ! [SX1: $i] :
                          ( ~ ( empty @ SX1 )
                          | ( element @ SX1 @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[513]) ).

thf(591,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( relation @ SX1 )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( relation @ SX2 )
                        | ~ ( ~ ( ! [SX3: $i] :
                                    ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX3 ) @ SX0 )
                                    | ~ ( in @ ( ordered_pair @ SX3 @ ( sK11_SY305 @ SX2 @ SX1 @ SX0 ) ) @ SX1 ) )
                                | ~ ( in @ ( ordered_pair @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ ( sK11_SY305 @ SX2 @ SX1 @ SX0 ) ) @ SX2 ) )
                            | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ ( sK12_SY309 @ SX2 @ SX1 @ SX0 ) ) @ SX0 )
                                    | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SX2 @ SX1 @ SX0 ) @ ( sK11_SY305 @ SX2 @ SX1 @ SX0 ) ) @ SX1 ) )
                                | ( in @ ( ordered_pair @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ ( sK11_SY305 @ SX2 @ SX1 @ SX0 ) ) @ SX2 ) ) )
                        | ( SX2
                          = ( relation_composition @ SX0 @ SX1 ) ) )
                  | ~ ! [SX2: $i] :
                        ( ~ ( relation @ SX2 )
                        | ( SX2
                         != ( relation_composition @ SX0 @ SX1 ) )
                        | ~ ( ~ ! [SX3: $i,SX4: $i] :
                                  ( ! [SX5: $i] :
                                      ( ~ ( in @ ( ordered_pair @ SX3 @ SX5 ) @ SX0 )
                                      | ~ ( in @ ( ordered_pair @ SX5 @ SX4 ) @ SX1 ) )
                                  | ( in @ ( ordered_pair @ SX3 @ SX4 ) @ SX2 ) )
                            | ~ ! [SX3: $i,SX4: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SX3 @ SX4 ) @ SX2 )
                                  | ~ ( ~ ( in @ ( ordered_pair @ SX3 @ ( sK9_F @ SX4 @ SX3 @ SX2 @ SX1 @ SX0 ) ) @ SX0 )
                                      | ~ ( in @ ( ordered_pair @ ( sK9_F @ SX4 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX4 ) @ SX1 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[523]) ).

thf(592,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ( empty @ ( relation_dom @ SX0 ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ( relation @ ( relation_dom @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[453]) ).

thf(593,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
                | ( SX1
                  = ( powerset @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( powerset @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ( subset @ SX2 @ SX0 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( subset @ SX2 @ SX0 )
                          | ( in @ SX2 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[512]) ).

thf(594,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SX1 @ SX0 ) @ ( sK14_SY310 @ SX1 @ SX0 ) ) @ SX1 )
                            | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SX1 @ SX0 ) @ ( sK13_C @ SX1 @ SX0 ) ) @ SX0 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SX1 @ SX0 ) @ ( sK14_SY310 @ SX1 @ SX0 ) ) @ SX1 )
                            | ( in @ ( ordered_pair @ ( sK14_SY310 @ SX1 @ SX0 ) @ ( sK13_C @ SX1 @ SX0 ) ) @ SX0 ) ) )
                    | ( SX1
                      = ( relation_inverse @ SX0 ) ) )
              | ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ( SX1
                     != ( relation_inverse @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i,SX3: $i] :
                              ( ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX1 )
                              | ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 ) )
                        | ~ ! [SX2: $i,SX3: $i] :
                              ( ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 )
                              | ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[522]) ).

thf(595,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0
                       != ( singleton @ SX1 ) )
                      | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[421]) ).

thf(596,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ( element @ SX0 @ ( powerset @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[543]) ).

thf(597,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ~ ( ~ ( element @ ( sK8_B @ SX0 ) @ ( powerset @ SX0 ) )
              | ~ ~ ( empty @ ( sK8_B @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[534]) ).

thf(598,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX2 )
                  | ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 ) )
            | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX1: $i,SX2: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 )
                        | ( in @ SX1 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[487]) ).

thf(599,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX0 @ ( relation_field @ SX2 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX1 @ ( relation_field @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[482]) ).

thf(600,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK42_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[441]) ).

thf(601,plain,
    ( ( ~ ( ( ( relation_dom @ sK1_A )
           != empty_set )
          | ~ ( ( ( relation_rng @ sK1_A )
               != empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[550]) ).

thf(602,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i] :
                  ( ! [SX3: $i] :
                      ( ( ordered_pair @ SX0 @ SX1 )
                     != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX0 = SX2 ) )
            | ~ ! [SX2: $i,SX3: $i] :
                  ( ( ( ordered_pair @ SX0 @ SX1 )
                   != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX1 = SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[484]) ).

thf(603,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( subset @ SX0 @ SX1 )
                    | ( subset @ ( relation_dom @ SX0 ) @ ( relation_dom @ SX1 ) ) )
              | ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( subset @ SX0 @ SX1 )
                    | ( subset @ ( relation_rng @ SX0 ) @ ( relation_rng @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[425]) ).

thf(604,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                          ( ( sK48_B @ SX0 )
                         != ( ordered_pair @ SX1 @ SX2 ) )
                    | ~ ( in @ ( sK48_B @ SX0 ) @ SX0 ) )
                | ( relation @ SX0 ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ! [SX1: $i] :
                    ( ( SX1
                      = ( ordered_pair @ ( sK46_C @ SX1 @ SX0 ) @ ( sK47_SY329 @ SX1 @ SX0 ) ) )
                    | ~ ( in @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[439]) ).

thf(605,plain,
    ! [SV1: $i] :
      ( ( ( ( singleton @ SV1 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[419]) ).

thf(606,plain,
    ! [SV2: $i] :
      ( ( ~ ( relation @ SV2 )
        | ( subset @ SV2 @ ( cartesian_product2 @ ( relation_dom @ SV2 ) @ ( relation_rng @ SV2 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[424]) ).

thf(607,plain,
    ! [SV3: $i] :
      ( ( subset @ empty_set @ SV3 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[426]) ).

thf(608,plain,
    ! [SV4: $i] :
      ( ( ~ ( subset @ SV4 @ empty_set )
        | ( SV4 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[430]) ).

thf(609,plain,
    ! [SV5: $i] :
      ( ( ~ ( relation @ SV5 )
        | ! [SY333: $i] :
            ( ~ ( relation @ SY333 )
            | ( subset @ ( relation_dom @ ( relation_composition @ SV5 @ SY333 ) ) @ ( relation_dom @ SV5 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[431]) ).

thf(610,plain,
    ! [SV6: $i] :
      ( ( ~ ( relation @ SV6 )
        | ! [SY334: $i] :
            ( ~ ( relation @ SY334 )
            | ( subset @ ( relation_rng @ ( relation_composition @ SV6 @ SY334 ) ) @ ( relation_rng @ SY334 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[432]) ).

thf(611,plain,
    ! [SV7: $i] :
      ( ( ~ ( relation @ SV7 )
        | ! [SY335: $i] :
            ( ~ ( relation @ SY335 )
            | ~ ( subset @ ( relation_rng @ SV7 ) @ ( relation_dom @ SY335 ) )
            | ( ( relation_dom @ ( relation_composition @ SV7 @ SY335 ) )
              = ( relation_dom @ SV7 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[433]) ).

thf(612,plain,
    ! [SV8: $i] :
      ( ( ~ ( relation @ SV8 )
        | ! [SY336: $i] :
            ( ~ ( relation @ SY336 )
            | ~ ( subset @ ( relation_dom @ SV8 ) @ ( relation_rng @ SY336 ) )
            | ( ( relation_rng @ ( relation_composition @ SY336 @ SV8 ) )
              = ( relation_rng @ SV8 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[434]) ).

thf(613,plain,
    ! [SV9: $i] :
      ( ( ~ ( relation @ SV9 )
        | ( in @ ( ordered_pair @ ( sK49_B @ SV9 ) @ ( sK50_SY332 @ SV9 ) ) @ SV9 )
        | ( SV9 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[435]) ).

thf(614,plain,
    ! [SV10: $i] :
      ( ( ~ ( empty @ SV10 )
        | ( relation @ SV10 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[438]) ).

thf(615,plain,
    ! [SV11: $i] :
      ( ( ~ ( relation @ SV11 )
        | ( ( relation_field @ SV11 )
          = ( set_union2 @ ( relation_dom @ SV11 ) @ ( relation_rng @ SV11 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[444]) ).

thf(616,plain,
    ! [SV12: $i] :
      ( ( ~ ( relation @ SV12 )
        | ( relation @ ( relation_inverse @ SV12 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[446]) ).

thf(617,plain,
    ! [SV13: $i] :
      ( ( ! [SY337: $i] :
            ( ~ ( relation @ SV13 )
            | ~ ( relation @ SY337 )
            | ( relation @ ( relation_composition @ SV13 @ SY337 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[447]) ).

thf(618,plain,
    ! [SV14: $i] :
      ( ( ! [SY338: $i] :
            ( ~ ( relation @ SV14 )
            | ~ ( relation @ SY338 )
            | ( relation @ ( set_union2 @ SV14 @ SY338 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[449]) ).

thf(619,plain,
    ! [SV15: $i] :
      ( ( ( empty @ SV15 )
        | ~ ( relation @ SV15 )
        | ~ ( empty @ ( relation_dom @ SV15 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[451]) ).

thf(620,plain,
    ! [SV16: $i] :
      ( ( ( empty @ SV16 )
        | ~ ( relation @ SV16 )
        | ~ ( empty @ ( relation_rng @ SV16 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[452]) ).

thf(621,plain,
    ! [SV17: $i] :
      ( ( ~ ( relation @ SV17 )
        | ( ( relation_inverse @ ( relation_inverse @ SV17 ) )
          = SV17 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[455]) ).

thf(622,plain,
    ! [SV18: $i] :
      ( ( ( set_union2 @ SV18 @ empty_set )
        = SV18 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[458]) ).

thf(623,plain,
    ! [SV19: $i] :
      ( ( ( set_intersection2 @ SV19 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[459]) ).

thf(624,plain,
    ! [SV20: $i] :
      ( ( ( set_difference @ SV20 @ empty_set )
        = SV20 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[460]) ).

thf(625,plain,
    ! [SV21: $i] :
      ( ( ( set_difference @ empty_set @ SV21 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[461]) ).

thf(626,plain,
    ! [SV22: $i] :
      ( ( ~ ( empty @ SV22 )
        | ( SV22 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[462]) ).

thf(627,plain,
    ! [SV23: $i] :
      ( ( ! [SY339: $i] :
            ( ~ ( in @ SV23 @ SY339 )
            | ( ( set_union2 @ ( singleton @ SV23 ) @ SY339 )
              = SY339 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[463]) ).

thf(628,plain,
    ! [SV24: $i] :
      ( ( ! [SY340: $i] :
            ( ~ ( disjoint @ ( singleton @ SV24 ) @ SY340 )
            | ~ ( in @ SV24 @ SY340 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[464]) ).

thf(629,plain,
    ! [SV25: $i] :
      ( ( ! [SY341: $i] :
            ( ( in @ SV25 @ SY341 )
            | ( disjoint @ ( singleton @ SV25 ) @ SY341 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[465]) ).

thf(630,plain,
    ! [SV26: $i] :
      ( ( ! [SY342: $i] :
            ( ~ ( element @ SY342 @ ( powerset @ SV26 ) )
            | ! [SY343: $i] :
                ( ~ ( in @ SY343 @ SY342 )
                | ( in @ SY343 @ SV26 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[467]) ).

thf(631,plain,
    ! [SV27: $i] :
      ( ( ! [SY344: $i] :
            ( ~ ( subset @ SV27 @ SY344 )
            | ! [SY345: $i] :
                ( ( in @ SY345 @ SV27 )
                | ( subset @ SV27 @ ( set_difference @ SY344 @ ( singleton @ SY345 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[468]) ).

thf(632,plain,
    ! [SV28: $i] :
      ( ( ! [SY346: $i] :
            ( ~ ( in @ SV28 @ SY346 )
            | ( subset @ SV28 @ ( union @ SY346 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[469]) ).

thf(633,plain,
    ! [SV29: $i] :
      ( ( ! [SY347: $i,SY348: $i,SY349: $i] :
            ( ~ ( subset @ SV29 @ SY347 )
            | ~ ( subset @ SY348 @ SY349 )
            | ( subset @ ( cartesian_product2 @ SV29 @ SY348 ) @ ( cartesian_product2 @ SY347 @ SY349 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[474]) ).

thf(634,plain,
    ! [SV30: $i] :
      ( ( ! [SY350: $i] :
            ( ~ ( subset @ SV30 @ SY350 )
            | ( ( set_union2 @ SV30 @ SY350 )
              = SY350 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[475]) ).

thf(635,plain,
    ! [SV31: $i] :
      ( ( ! [SY351: $i] : ( subset @ ( set_intersection2 @ SV31 @ SY351 ) @ SV31 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[477]) ).

thf(636,plain,
    ! [SV32: $i] :
      ( ( ! [SY352: $i,SY353: $i] :
            ( ~ ( subset @ SV32 @ SY352 )
            | ~ ( subset @ SV32 @ SY353 )
            | ( subset @ SV32 @ ( set_intersection2 @ SY352 @ SY353 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[478]) ).

thf(637,plain,
    ! [SV33: $i] :
      ( ( ! [SY354: $i,SY355: $i] :
            ( ~ ( subset @ SV33 @ SY354 )
            | ~ ( subset @ SY354 @ SY355 )
            | ( subset @ SV33 @ SY355 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[479]) ).

thf(638,plain,
    ! [SV34: $i] :
      ( ( ! [SY356: $i] :
            ( ~ ( subset @ SV34 @ SY356 )
            | ! [SY357: $i] : ( subset @ ( set_intersection2 @ SV34 @ SY357 ) @ ( set_intersection2 @ SY356 @ SY357 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[480]) ).

thf(639,plain,
    ! [SV35: $i] :
      ( ( ! [SY358: $i] :
            ( ~ ( subset @ SV35 @ SY358 )
            | ( ( set_intersection2 @ SV35 @ SY358 )
              = SV35 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[481]) ).

thf(640,plain,
    ! [SV36: $i] :
      ( ( ! [SY359: $i] :
            ( ~ ( subset @ SV36 @ SY359 )
            | ! [SY360: $i] : ( subset @ ( set_difference @ SV36 @ SY360 ) @ ( set_difference @ SY359 @ SY360 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[483]) ).

thf(641,plain,
    ! [SV37: $i] :
      ( ( ! [SY361: $i] : ( subset @ ( set_difference @ SV37 @ SY361 ) @ SV37 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[485]) ).

thf(642,plain,
    ! [SV38: $i] :
      ( ( ! [SY362: $i] :
            ( ( set_union2 @ SV38 @ ( set_difference @ SY362 @ SV38 ) )
            = ( set_union2 @ SV38 @ SY362 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[488]) ).

thf(643,plain,
    ! [SV39: $i] :
      ( ( ! [SY363: $i] :
            ( ( set_difference @ ( set_union2 @ SV39 @ SY363 ) @ SY363 )
            = ( set_difference @ SV39 @ SY363 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[490]) ).

thf(644,plain,
    ! [SV40: $i] :
      ( ( ! [SY364: $i] :
            ( ~ ( subset @ SV40 @ SY364 )
            | ( SY364
              = ( set_union2 @ SV40 @ ( set_difference @ SY364 @ SV40 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[491]) ).

thf(645,plain,
    ! [SV41: $i] :
      ( ( ! [SY365: $i] :
            ( ~ ( in @ SV41 @ SY365 )
            | ( ( set_union2 @ ( singleton @ SV41 ) @ SY365 )
              = SY365 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[492]) ).

thf(646,plain,
    ! [SV42: $i] :
      ( ( ! [SY366: $i] :
            ( ( set_difference @ SV42 @ ( set_difference @ SV42 @ SY366 ) )
            = ( set_intersection2 @ SV42 @ SY366 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[493]) ).

thf(647,plain,
    ! [SV43: $i] :
      ( ( ! [SY367: $i] :
            ( ~ ( proper_subset @ SY367 @ SV43 )
            | ~ ( subset @ SV43 @ SY367 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[495]) ).

thf(648,plain,
    ! [SV44: $i] :
      ( ( ! [SY368: $i,SY369: $i] :
            ( ~ ( disjoint @ SY368 @ SY369 )
            | ~ ( subset @ SV44 @ SY368 )
            | ( disjoint @ SV44 @ SY369 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[496]) ).

thf(649,plain,
    ! [SV45: $i] :
      ( ( ( unordered_pair @ SV45 @ SV45 )
        = ( singleton @ SV45 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[498]) ).

thf(650,plain,
    ! [SV46: $i] :
      ( ( ! [SY370: $i] :
            ( ~ ( subset @ ( singleton @ SV46 ) @ ( singleton @ SY370 ) )
            | ( SV46 = SY370 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[499]) ).

thf(651,plain,
    ! [SV47: $i] :
      ( ( ! [SY371: $i] : ( subset @ SV47 @ ( set_union2 @ SV47 @ SY371 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[500]) ).

thf(652,plain,
    ! [SV48: $i] :
      ( ( ! [SY372: $i,SY373: $i] :
            ( ~ ( subset @ SV48 @ SY372 )
            | ~ ( subset @ SY373 @ SY372 )
            | ( subset @ ( set_union2 @ SV48 @ SY373 ) @ SY372 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[502]) ).

thf(653,plain,
    ! [SV49: $i] :
      ( ( ! [SY374: $i] :
            ( ! [SY375: $i] :
                ( ( singleton @ SV49 )
               != ( unordered_pair @ SY374 @ SY375 ) )
            | ( SV49 = SY374 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[503]) ).

thf(654,plain,
    ! [SV50: $i] :
      ( ( ! [SY376: $i] :
            ( ~ ( in @ SV50 @ SY376 )
            | ( subset @ SV50 @ ( union @ SY376 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[504]) ).

thf(655,plain,
    ! [SV51: $i] :
      ( ( ( union @ ( powerset @ SV51 ) )
        = SV51 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[505]) ).

thf(656,plain,
    ! [SV52: $i] :
      ( ( ! [SY377: $i,SY378: $i] :
            ( ( ( singleton @ SV52 )
             != ( unordered_pair @ SY377 @ SY378 ) )
            | ( SY377 = SY378 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[506]) ).

thf(657,plain,
    ! [SV53: $i] :
      ( ( ! [SY379: $i] :
            ( ~ ( in @ SV53 @ SY379 )
            | ~ ( in @ SY379 @ SV53 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[507]) ).

thf(658,plain,
    ! [SV54: $i] :
      ( ( ! [SY380: $i] :
            ( ( set_union2 @ SV54 @ SY380 )
            = ( set_union2 @ SY380 @ SV54 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[508]) ).

thf(659,plain,
    ! [SV55: $i] :
      ( ( ! [SY381: $i] :
            ( ( set_intersection2 @ SV55 @ SY381 )
            = ( set_intersection2 @ SY381 @ SV55 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[509]) ).

thf(660,plain,
    ! [SV56: $i] :
      ( ( ! [SY382: $i] :
            ( ( ordered_pair @ SV56 @ SY382 )
            = ( unordered_pair @ ( unordered_pair @ SV56 @ SY382 ) @ ( singleton @ SV56 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[521]) ).

thf(661,plain,
    ! [SV57: $i] :
      ( ( ~ ( empty @ ( powerset @ SV57 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[525]) ).

thf(662,plain,
    ! [SV58: $i] :
      ( ( ! [SY383: $i] :
            ~ ( empty @ ( ordered_pair @ SV58 @ SY383 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[526]) ).

thf(663,plain,
    ! [SV59: $i] :
      ( ( ~ ( empty @ ( singleton @ SV59 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[527]) ).

thf(664,plain,
    ! [SV60: $i] :
      ( ( ( empty @ SV60 )
        | ! [SY384: $i] :
            ~ ( empty @ ( set_union2 @ SV60 @ SY384 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[528]) ).

thf(665,plain,
    ! [SV61: $i] :
      ( ( ! [SY385: $i] :
            ~ ( empty @ ( unordered_pair @ SV61 @ SY385 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[529]) ).

thf(666,plain,
    ! [SV62: $i] :
      ( ( ( empty @ SV62 )
        | ! [SY386: $i] :
            ~ ( empty @ ( set_union2 @ SY386 @ SV62 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[530]) ).

thf(667,plain,
    ! [SV63: $i] :
      ( ( ! [SY387: $i] :
            ( ( empty @ SV63 )
            | ( empty @ SY387 )
            | ~ ( empty @ ( cartesian_product2 @ SV63 @ SY387 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[531]) ).

thf(668,plain,
    ! [SV64: $i] :
      ( ( ( set_union2 @ SV64 @ SV64 )
        = SV64 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[532]) ).

thf(669,plain,
    ! [SV65: $i] :
      ( ( ( set_intersection2 @ SV65 @ SV65 )
        = SV65 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[533]) ).

thf(670,plain,
    ( ( empty @ sK5_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[537]) ).

thf(671,plain,
    ! [SV66: $i] :
      ( ( subset @ SV66 @ SV66 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[538]) ).

thf(672,plain,
    ! [SV67: $i] :
      ( ( ! [SY388: $i] :
            ( ~ ( disjoint @ SV67 @ SY388 )
            | ( disjoint @ SY388 @ SV67 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[539]) ).

thf(673,plain,
    ! [SV68: $i] :
      ( ( ! [SY389: $i] :
            ( ~ ( in @ SV68 @ SY389 )
            | ( element @ SV68 @ SY389 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[540]) ).

thf(674,plain,
    ! [SV69: $i] :
      ( ( ! [SY390: $i] :
            ( ~ ( element @ SV69 @ SY390 )
            | ( empty @ SY390 )
            | ( in @ SV69 @ SY390 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[541]) ).

thf(675,plain,
    ! [SV70: $i] :
      ( ( ! [SY391: $i,SY392: $i] :
            ( ~ ( element @ SY391 @ ( powerset @ SY392 ) )
            | ~ ( in @ SV70 @ SY391 )
            | ( element @ SV70 @ SY392 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[544]) ).

thf(676,plain,
    ! [SV71: $i] :
      ( ( ! [SY393: $i,SY394: $i] :
            ( ~ ( element @ SY393 @ ( powerset @ SY394 ) )
            | ~ ( in @ SV71 @ SY393 )
            | ~ ( empty @ SY394 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[545]) ).

thf(677,plain,
    ! [SV72: $i] :
      ( ( ! [SY395: $i] :
            ( ~ ( empty @ SY395 )
            | ~ ( in @ SV72 @ SY395 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[546]) ).

thf(678,plain,
    ! [SV73: $i] :
      ( ( ! [SY396: $i] :
            ( ( SV73 = SY396 )
            | ~ ( empty @ SV73 )
            | ~ ( empty @ SY396 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[547]) ).

thf(679,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[551]) ).

thf(680,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) )
      | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX0 @ SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[552]) ).

thf(681,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) )
      | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( SX0 != SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( subset @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[553]) ).

thf(682,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK30_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[554]) ).

thf(683,plain,
    ! [SV74: $i] :
      ( ( ! [SY397: $i] :
            ( ~ ( ~ ( in @ ( sK33_C @ SY397 @ SV74 ) @ SV74 )
                | ~ ~ ( in @ ( sK33_C @ SY397 @ SV74 ) @ SY397 ) )
            | ( element @ SV74 @ ( powerset @ SY397 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[555]) ).

thf(684,plain,
    ! [SV75: $i] :
      ( ( ! [SY398: $i] :
            ~ ( ~ ! [SY399: $i,SY400: $i] :
                    ( ~ ( in @ SV75 @ SY399 )
                    | ~ ( in @ SY398 @ SY400 )
                    | ( in @ ( ordered_pair @ SV75 @ SY398 ) @ ( cartesian_product2 @ SY399 @ SY400 ) ) )
              | ~ ~ ( ~ ! [SY401: $i] :
                          ( ! [SY402: $i] :
                              ~ ( in @ ( ordered_pair @ SV75 @ SY398 ) @ ( cartesian_product2 @ SY401 @ SY402 ) )
                          | ( in @ SV75 @ SY401 ) )
                    | ~ ! [SY403: $i,SY404: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV75 @ SY398 ) @ ( cartesian_product2 @ SY403 @ SY404 ) )
                          | ( in @ SY398 @ SY404 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[556]) ).

thf(685,plain,
    ! [SV76: $i] :
      ( ( ~ ( ~ ! [SY405: $i] :
                  ( ~ ( subset @ SV76 @ SY405 )
                  | ! [SY406: $i] : ( subset @ ( cartesian_product2 @ SV76 @ SY406 ) @ ( cartesian_product2 @ SY405 @ SY406 ) ) )
            | ~ ! [SY407: $i] :
                  ( ~ ( subset @ SV76 @ SY407 )
                  | ! [SY408: $i] : ( subset @ ( cartesian_product2 @ SY408 @ SV76 ) @ ( cartesian_product2 @ SY408 @ SY407 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[557]) ).

thf(686,plain,
    ( ( ~ ( empty @ empty_set )
      | ~ ( relation @ empty_set ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[558]) ).

thf(687,plain,
    ( ( ( ( relation_dom @ empty_set )
       != empty_set )
      | ( ( relation_rng @ empty_set )
       != empty_set ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[559]) ).

thf(688,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[560]) ).

thf(689,plain,
    ! [SV77: $i] :
      ( ( ~ ( ~ ! [SY409: $i,SY410: $i] :
                  ( ~ ( relation @ SY410 )
                  | ~ ( in @ ( ordered_pair @ SV77 @ SY409 ) @ SY410 )
                  | ( in @ SV77 @ ( relation_dom @ SY410 ) ) )
            | ~ ! [SY411: $i,SY412: $i] :
                  ( ~ ( relation @ SY412 )
                  | ~ ( in @ ( ordered_pair @ SV77 @ SY411 ) @ SY412 )
                  | ( in @ SY411 @ ( relation_rng @ SY412 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[561]) ).

thf(690,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( empty @ ( relation_rng @ SX0 ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( relation @ ( relation_rng @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[562]) ).

thf(691,plain,
    ! [SV78: $i] :
      ( ( ! [SY413: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK4_C @ SY413 @ SV78 ) @ SV78 )
                    | ~ ( in @ ( sK4_C @ SY413 @ SV78 ) @ SY413 ) )
                | ~ ( ( in @ ( sK4_C @ SY413 @ SV78 ) @ SV78 )
                    | ( in @ ( sK4_C @ SY413 @ SV78 ) @ SY413 ) ) )
            | ( SV78 = SY413 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[563]) ).

thf(692,plain,
    ! [SV79: $i] :
      ( ( ~ ( ~ ! [SY414: $i,SY415: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                                | ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SV79 ) )
                            | ~ ( ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                                | ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY414 ) ) )
                      | ~ ( ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                          | ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SV79 )
                          | ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY414 ) ) )
                  | ( SY415
                    = ( set_union2 @ SV79 @ SY414 ) ) )
            | ~ ! [SY416: $i,SY417: $i] :
                  ( ( SY417
                   != ( set_union2 @ SV79 @ SY416 ) )
                  | ~ ( ~ ! [SY418: $i] :
                            ( ~ ( in @ SY418 @ SY417 )
                            | ( in @ SY418 @ SV79 )
                            | ( in @ SY418 @ SY416 ) )
                      | ~ ~ ( ~ ! [SY419: $i] :
                                  ( ~ ( in @ SY419 @ SV79 )
                                  | ( in @ SY419 @ SY417 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY416 )
                                  | ( in @ SX3 @ SY417 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[564]) ).

thf(693,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[565]) ).

thf(694,plain,
    ! [SV80: $i] :
      ( ( ~ ( ~ ! [SY421: $i,SY422: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SV80 )
                          | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY421 )
                          | ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SV80 )
                                | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) )
                            | ~ ( ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY421 )
                                | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) ) ) )
                  | ( SY422
                    = ( set_difference @ SV80 @ SY421 ) ) )
            | ~ ! [SY423: $i,SY424: $i] :
                  ( ( SY424
                   != ( set_difference @ SV80 @ SY423 ) )
                  | ~ ( ~ ! [SY425: $i] :
                            ( ~ ( in @ SY425 @ SV80 )
                            | ( in @ SY425 @ SY423 )
                            | ( in @ SY425 @ SY424 ) )
                      | ~ ~ ( ~ ! [SY426: $i] :
                                  ( ~ ( in @ SY426 @ SY424 )
                                  | ( in @ SY426 @ SV80 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY424 )
                                  | ~ ( in @ SX3 @ SY423 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[566]) ).

thf(695,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[567]) ).

thf(696,plain,
    ( ( ~ ~ ( empty @ sK34_A )
      | ~ ( relation @ sK34_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[568]) ).

thf(697,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[569]) ).

thf(698,plain,
    ! [SV81: $i] :
      ( ( ~ ( ~ ! [SY428: $i,SY429: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SV81 )
                          | ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY428 )
                          | ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SV81 )
                                | ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) )
                            | ~ ( ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY428 )
                                | ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) ) ) )
                  | ( SY429
                    = ( set_intersection2 @ SV81 @ SY428 ) ) )
            | ~ ! [SY430: $i,SY431: $i] :
                  ( ( SY431
                   != ( set_intersection2 @ SV81 @ SY430 ) )
                  | ~ ( ~ ! [SY432: $i] :
                            ( ~ ( in @ SY432 @ SV81 )
                            | ~ ( in @ SY432 @ SY430 )
                            | ( in @ SY432 @ SY431 ) )
                      | ~ ~ ( ~ ! [SY433: $i] :
                                  ( ~ ( in @ SY433 @ SY431 )
                                  | ( in @ SY433 @ SV81 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY431 )
                                  | ( in @ SX3 @ SY430 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[570]) ).

thf(699,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[571]) ).

thf(700,plain,
    ! [SV82: $i] :
      ( ( ~ ( ~ ! [SY435: $i] :
                  ( ~ ( subset @ SY435 @ ( sK32_B @ SV82 ) )
                  | ( are_equipotent @ SY435 @ ( sK32_B @ SV82 ) )
                  | ( in @ SY435 @ ( sK32_B @ SV82 ) ) )
            | ~ ~ ( ~ ! [SY436: $i] :
                        ( ~ ( in @ SY436 @ ( sK32_B @ SV82 ) )
                        | ( in @ ( powerset @ SY436 ) @ ( sK32_B @ SV82 ) ) )
                  | ~ ~ ( ~ ! [SY437: $i,SY438: $i] :
                              ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
                              | ~ ( subset @ SY438 @ SY437 )
                              | ( in @ SY438 @ ( sK32_B @ SV82 ) ) )
                        | ~ ( in @ SV82 @ ( sK32_B @ SV82 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[572]) ).

thf(701,plain,
    ! [SV83: $i] :
      ( ( ! [SY439: $i] :
            ~ ( ~ ! [SY440: $i,SY441: $i] :
                    ( ~ ( in @ SV83 @ SY440 )
                    | ~ ( in @ SY439 @ SY441 )
                    | ( in @ ( ordered_pair @ SV83 @ SY439 ) @ ( cartesian_product2 @ SY440 @ SY441 ) ) )
              | ~ ~ ( ~ ! [SY442: $i] :
                          ( ! [SY443: $i] :
                              ~ ( in @ ( ordered_pair @ SV83 @ SY439 ) @ ( cartesian_product2 @ SY442 @ SY443 ) )
                          | ( in @ SV83 @ SY442 ) )
                    | ~ ! [SY444: $i,SY445: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV83 @ SY439 ) @ ( cartesian_product2 @ SY444 @ SY445 ) )
                          | ( in @ SY439 @ SY445 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[573]) ).

thf(702,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK29_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK29_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( singleton @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ( SX2 != SX0 )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( SX2 = SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[574]) ).

thf(703,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY312 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_SY312 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( union @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ! [SX3: $i] :
                          ( ~ ( in @ SX2 @ SX3 )
                          | ~ ( in @ SX3 @ SX0 ) )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ~ ( ~ ( in @ SX2 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[575]) ).

thf(704,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
             != empty_set )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
             != empty_set )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[576]) ).

thf(705,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[577]) ).

thf(706,plain,
    ! [SV84: $i] :
      ( ( ~ ( ~ ! [SY446: $i] :
                  ( ~ ( subset @ SY446 @ ( sK2_B @ SV84 ) )
                  | ( are_equipotent @ SY446 @ ( sK2_B @ SV84 ) )
                  | ( in @ SY446 @ ( sK2_B @ SV84 ) ) )
            | ~ ~ ( ~ ! [SY447: $i] :
                        ( ~ ( ~ ! [SY448: $i] :
                                  ( ~ ( subset @ SY448 @ SY447 )
                                  | ( in @ SY448 @ ( sK3_SY300 @ SY447 @ SV84 ) ) )
                            | ~ ( in @ ( sK3_SY300 @ SY447 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
                        | ~ ( in @ SY447 @ ( sK2_B @ SV84 ) ) )
                  | ~ ~ ( ~ ! [SY449: $i,SY450: $i] :
                              ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
                              | ~ ( subset @ SY450 @ SY449 )
                              | ( in @ SY450 @ ( sK2_B @ SV84 ) ) )
                        | ~ ( in @ SV84 @ ( sK2_B @ SV84 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[578]) ).

thf(707,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
              = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
              = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[579]) ).

thf(708,plain,
    ! [SV85: $i] :
      ( ( ~ ( ~ ! [SY451: $i,SY452: $i] :
                  ( ~ ( ~ ( ! [SY453: $i,SY454: $i] :
                              ( ~ ( in @ SY453 @ SV85 )
                              | ~ ( in @ SY454 @ SY451 )
                              | ( ( sK23_D @ SY452 @ SY451 @ SV85 )
                               != ( ordered_pair @ SY453 @ SY454 ) ) )
                          | ~ ( in @ ( sK23_D @ SY452 @ SY451 @ SV85 ) @ SY452 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY452 @ SY451 @ SV85 ) @ SV85 )
                                    | ~ ( in @ ( sK25_SY318 @ SY452 @ SY451 @ SV85 ) @ SY451 ) )
                              | ( ( sK23_D @ SY452 @ SY451 @ SV85 )
                               != ( ordered_pair @ ( sK24_SY316 @ SY452 @ SY451 @ SV85 ) @ ( sK25_SY318 @ SY452 @ SY451 @ SV85 ) ) ) )
                          | ( in @ ( sK23_D @ SY452 @ SY451 @ SV85 ) @ SY452 ) ) )
                  | ( SY452
                    = ( cartesian_product2 @ SV85 @ SY451 ) ) )
            | ~ ! [SY455: $i,SY456: $i] :
                  ( ( SY456
                   != ( cartesian_product2 @ SV85 @ SY455 ) )
                  | ~ ( ~ ! [SY457: $i] :
                            ( ! [SY458: $i,SY459: $i] :
                                ( ~ ( in @ SY458 @ SV85 )
                                | ~ ( in @ SY459 @ SY455 )
                                | ( SY457
                                 != ( ordered_pair @ SY458 @ SY459 ) ) )
                            | ( in @ SY457 @ SY456 ) )
                      | ~ ! [SY460: $i] :
                            ( ~ ( in @ SY460 @ SY456 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY460 @ SY456 @ SY455 @ SV85 ) @ SV85 )
                                      | ~ ( in @ ( sK22_SY313 @ SY460 @ SY456 @ SY455 @ SV85 ) @ SY455 ) )
                                | ( SY460
                                 != ( ordered_pair @ ( sK21_E @ SY460 @ SY456 @ SY455 @ SV85 ) @ ( sK22_SY313 @ SY460 @ SY456 @ SY455 @ SV85 ) ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[580]) ).

thf(709,plain,
    ! [SV86: $i] :
      ( ( ~ ( relation @ SV86 )
        | ~ ( ~ ! [SY461: $i] :
                  ( ~ ( ~ ( ! [SY462: $i] :
                              ~ ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ SY462 ) @ SV86 )
                          | ~ ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ ( sK41_SY326 @ SY461 @ SV86 ) ) @ SV86 )
                          | ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) ) )
                  | ( SY461
                    = ( relation_dom @ SV86 ) ) )
            | ~ ! [SY463: $i] :
                  ( ( SY463
                   != ( relation_dom @ SV86 ) )
                  | ~ ( ~ ! [SY464: $i] :
                            ( ! [SY465: $i] :
                                ~ ( in @ ( ordered_pair @ SY464 @ SY465 ) @ SV86 )
                            | ( in @ SY464 @ SY463 ) )
                      | ~ ! [SY466: $i] :
                            ( ~ ( in @ SY466 @ SY463 )
                            | ( in @ ( ordered_pair @ SY466 @ ( sK39_D @ SY466 @ SY463 @ SV86 ) ) @ SV86 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[581]) ).

thf(710,plain,
    ! [SV87: $i] :
      ( ( ~ ( ~ ( element @ ( sK6_B @ SV87 ) @ ( powerset @ SV87 ) )
            | ~ ( empty @ ( sK6_B @ SV87 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[582]) ).

thf(711,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[583]) ).

thf(712,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[584]) ).

thf(713,plain,
    ! [SV88: $i] :
      ( ( ~ ( relation @ SV88 )
        | ~ ( ~ ! [SY467: $i] :
                  ( ~ ( ~ ( ! [SY468: $i] :
                              ~ ( in @ ( ordered_pair @ SY468 @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                          | ~ ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY467 @ SV88 ) @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                          | ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) ) )
                  | ( SY467
                    = ( relation_rng @ SV88 ) ) )
            | ~ ! [SY469: $i] :
                  ( ( SY469
                   != ( relation_rng @ SV88 ) )
                  | ~ ( ~ ! [SY470: $i] :
                            ( ! [SY471: $i] :
                                ~ ( in @ ( ordered_pair @ SY471 @ SY470 ) @ SV88 )
                            | ( in @ SY470 @ SY469 ) )
                      | ~ ! [SY472: $i] :
                            ( ~ ( in @ SY472 @ SY469 )
                            | ( in @ ( ordered_pair @ ( sK36_D @ SY472 @ SY469 @ SV88 ) @ SY472 ) @ SV88 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[585]) ).

thf(714,plain,
    ( ( ~ ( empty @ sK35_A )
      | ~ ( relation @ sK35_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[586]) ).

thf(715,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                                | ( in @ SX2 @ SX1 ) )
                          | ~ ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX1 )
                                | ! [SX3: $i] :
                                    ( ~ ( in @ SX3 @ SX0 )
                                    | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ( SX1 = empty_set ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1 != empty_set )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[587]) ).

thf(716,plain,
    ! [SV89: $i] :
      ( ( ~ ( ~ ! [SY473: $i,SY474: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                                | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                                 != SV89 ) )
                            | ~ ( ~ ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                                | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                                 != SY473 ) ) )
                      | ~ ( ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                          | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                            = SV89 )
                          | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                            = SY473 ) ) )
                  | ( SY474
                    = ( unordered_pair @ SV89 @ SY473 ) ) )
            | ~ ! [SY475: $i,SY476: $i] :
                  ( ( SY476
                   != ( unordered_pair @ SV89 @ SY475 ) )
                  | ~ ( ~ ! [SY477: $i] :
                            ( ~ ( in @ SY477 @ SY476 )
                            | ( SY477 = SV89 )
                            | ( SY477 = SY475 ) )
                      | ~ ~ ( ~ ! [SY478: $i] :
                                  ( ( SY478 != SV89 )
                                  | ( in @ SY478 @ SY476 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY475 )
                                  | ( in @ SX3 @ SY476 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[588]) ).

thf(717,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[589]) ).

thf(718,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( element @ SX1 @ SX0 )
                      | ( in @ SX1 @ SX0 ) ) )
            | ~ ! [SX0: $i] :
                  ( ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( in @ SX1 @ SX0 )
                      | ( element @ SX1 @ SX0 ) ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ~ ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( element @ SX1 @ SX0 )
                      | ( empty @ SX1 ) ) )
            | ~ ! [SX0: $i] :
                  ( ~ ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( empty @ SX1 )
                      | ( element @ SX1 @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[590]) ).

thf(719,plain,
    ! [SV90: $i] :
      ( ( ~ ( relation @ SV90 )
        | ! [SY480: $i] :
            ( ~ ( relation @ SY480 )
            | ~ ( ~ ! [SY481: $i] :
                      ( ~ ( relation @ SY481 )
                      | ~ ( ~ ( ! [SY482: $i] :
                                  ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ SY482 ) @ SV90 )
                                  | ~ ( in @ ( ordered_pair @ SY482 @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY480 ) )
                              | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY481 ) )
                          | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ ( sK12_SY309 @ SY481 @ SY480 @ SV90 ) ) @ SV90 )
                                  | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY481 @ SY480 @ SV90 ) @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY480 ) )
                              | ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY481 ) ) )
                      | ( SY481
                        = ( relation_composition @ SV90 @ SY480 ) ) )
                | ~ ! [SY483: $i] :
                      ( ~ ( relation @ SY483 )
                      | ( SY483
                       != ( relation_composition @ SV90 @ SY480 ) )
                      | ~ ( ~ ! [SY484: $i,SY485: $i] :
                                ( ! [SY486: $i] :
                                    ( ~ ( in @ ( ordered_pair @ SY484 @ SY486 ) @ SV90 )
                                    | ~ ( in @ ( ordered_pair @ SY486 @ SY485 ) @ SY480 ) )
                                | ( in @ ( ordered_pair @ SY484 @ SY485 ) @ SY483 ) )
                          | ~ ! [SY487: $i,SY488: $i] :
                                ( ~ ( in @ ( ordered_pair @ SY487 @ SY488 ) @ SY483 )
                                | ~ ( ~ ( in @ ( ordered_pair @ SY487 @ ( sK9_F @ SY488 @ SY487 @ SY483 @ SY480 @ SV90 ) ) @ SV90 )
                                    | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY488 @ SY487 @ SY483 @ SY480 @ SV90 ) @ SY488 ) @ SY480 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[591]) ).

thf(720,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( empty @ ( relation_dom @ SX0 ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( relation @ ( relation_dom @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[592]) ).

thf(721,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( powerset @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( subset @ SX2 @ SX0 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( subset @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[593]) ).

thf(722,plain,
    ! [SV91: $i] :
      ( ( ~ ( relation @ SV91 )
        | ~ ( ~ ! [SY489: $i] :
                  ( ~ ( relation @ SY489 )
                  | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                          | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                          | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) ) )
                  | ( SY489
                    = ( relation_inverse @ SV91 ) ) )
            | ~ ! [SY490: $i] :
                  ( ~ ( relation @ SY490 )
                  | ( SY490
                   != ( relation_inverse @ SV91 ) )
                  | ~ ( ~ ! [SY491: $i,SY492: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY491 @ SY492 ) @ SY490 )
                            | ( in @ ( ordered_pair @ SY492 @ SY491 ) @ SV91 ) )
                      | ~ ! [SY493: $i,SY494: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY494 @ SY493 ) @ SV91 )
                            | ( in @ ( ordered_pair @ SY493 @ SY494 ) @ SY490 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[594]) ).

thf(723,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[595]) ).

thf(724,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[596]) ).

thf(725,plain,
    ! [SV92: $i] :
      ( ( ( empty @ SV92 )
        | ~ ( ~ ( element @ ( sK8_B @ SV92 ) @ ( powerset @ SV92 ) )
            | ~ ~ ( empty @ ( sK8_B @ SV92 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[597]) ).

thf(726,plain,
    ! [SV93: $i] :
      ( ( ~ ( ~ ! [SY495: $i,SY496: $i] :
                  ( ~ ( in @ SV93 @ SY496 )
                  | ~ ( in @ SY495 @ SY496 )
                  | ( subset @ ( unordered_pair @ SV93 @ SY495 ) @ SY496 ) )
            | ~ ~ ( ~ ! [SY497: $i,SY498: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV93 @ SY497 ) @ SY498 )
                        | ( in @ SV93 @ SY498 ) )
                  | ~ ! [SY499: $i,SY500: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV93 @ SY499 ) @ SY500 )
                        | ( in @ SY499 @ SY500 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[598]) ).

thf(727,plain,
    ! [SV94: $i] :
      ( ( ~ ( ~ ! [SY501: $i,SY502: $i] :
                  ( ~ ( relation @ SY502 )
                  | ~ ( in @ ( ordered_pair @ SV94 @ SY501 ) @ SY502 )
                  | ( in @ SV94 @ ( relation_field @ SY502 ) ) )
            | ~ ! [SY503: $i,SY504: $i] :
                  ( ~ ( relation @ SY504 )
                  | ~ ( in @ ( ordered_pair @ SV94 @ SY503 ) @ SY504 )
                  | ( in @ SY503 @ ( relation_field @ SY504 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[599]) ).

thf(728,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK42_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[600]) ).

thf(729,plain,
    ( ( ( ( relation_dom @ sK1_A )
       != empty_set )
      | ~ ( ( ( relation_rng @ sK1_A )
           != empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[601]) ).

thf(730,plain,
    ! [SV95: $i] :
      ( ( ! [SY505: $i] :
            ~ ( ~ ! [SY506: $i] :
                    ( ! [SY507: $i] :
                        ( ( ordered_pair @ SV95 @ SY505 )
                       != ( ordered_pair @ SY506 @ SY507 ) )
                    | ( SV95 = SY506 ) )
              | ~ ! [SY508: $i,SY509: $i] :
                    ( ( ( ordered_pair @ SV95 @ SY505 )
                     != ( ordered_pair @ SY508 @ SY509 ) )
                    | ( SY505 = SY509 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[602]) ).

thf(731,plain,
    ! [SV96: $i] :
      ( ( ~ ( relation @ SV96 )
        | ~ ( ~ ! [SY510: $i] :
                  ( ~ ( relation @ SY510 )
                  | ~ ( subset @ SV96 @ SY510 )
                  | ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SY510 ) ) )
            | ~ ! [SY511: $i] :
                  ( ~ ( relation @ SY511 )
                  | ~ ( subset @ SV96 @ SY511 )
                  | ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SY511 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[603]) ).

thf(732,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK48_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK48_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK46_C @ SX1 @ SX0 ) @ ( sK47_SY329 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[604]) ).

thf(733,plain,
    ! [SV1: $i] :
      ( ( ( singleton @ SV1 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[605]) ).

thf(734,plain,
    ! [SV2: $i] :
      ( ( ( ~ ( relation @ SV2 ) )
        = $true )
      | ( ( subset @ SV2 @ ( cartesian_product2 @ ( relation_dom @ SV2 ) @ ( relation_rng @ SV2 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[606]) ).

thf(735,plain,
    ! [SV4: $i] :
      ( ( ( ~ ( subset @ SV4 @ empty_set ) )
        = $true )
      | ( ( SV4 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[608]) ).

thf(736,plain,
    ! [SV5: $i] :
      ( ( ( ~ ( relation @ SV5 ) )
        = $true )
      | ( ( ! [SY333: $i] :
              ( ~ ( relation @ SY333 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV5 @ SY333 ) ) @ ( relation_dom @ SV5 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[609]) ).

thf(737,plain,
    ! [SV6: $i] :
      ( ( ( ~ ( relation @ SV6 ) )
        = $true )
      | ( ( ! [SY334: $i] :
              ( ~ ( relation @ SY334 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV6 @ SY334 ) ) @ ( relation_rng @ SY334 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[610]) ).

thf(738,plain,
    ! [SV7: $i] :
      ( ( ( ~ ( relation @ SV7 ) )
        = $true )
      | ( ( ! [SY335: $i] :
              ( ~ ( relation @ SY335 )
              | ~ ( subset @ ( relation_rng @ SV7 ) @ ( relation_dom @ SY335 ) )
              | ( ( relation_dom @ ( relation_composition @ SV7 @ SY335 ) )
                = ( relation_dom @ SV7 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[611]) ).

thf(739,plain,
    ! [SV8: $i] :
      ( ( ( ~ ( relation @ SV8 ) )
        = $true )
      | ( ( ! [SY336: $i] :
              ( ~ ( relation @ SY336 )
              | ~ ( subset @ ( relation_dom @ SV8 ) @ ( relation_rng @ SY336 ) )
              | ( ( relation_rng @ ( relation_composition @ SY336 @ SV8 ) )
                = ( relation_rng @ SV8 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[612]) ).

thf(740,plain,
    ! [SV9: $i] :
      ( ( ( ~ ( relation @ SV9 ) )
        = $true )
      | ( ( ( in @ ( ordered_pair @ ( sK49_B @ SV9 ) @ ( sK50_SY332 @ SV9 ) ) @ SV9 )
          | ( SV9 = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[613]) ).

thf(741,plain,
    ! [SV10: $i] :
      ( ( ( ~ ( empty @ SV10 ) )
        = $true )
      | ( ( relation @ SV10 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[614]) ).

thf(742,plain,
    ! [SV11: $i] :
      ( ( ( ~ ( relation @ SV11 ) )
        = $true )
      | ( ( ( relation_field @ SV11 )
          = ( set_union2 @ ( relation_dom @ SV11 ) @ ( relation_rng @ SV11 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[615]) ).

thf(743,plain,
    ! [SV12: $i] :
      ( ( ( ~ ( relation @ SV12 ) )
        = $true )
      | ( ( relation @ ( relation_inverse @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[616]) ).

thf(744,plain,
    ! [SV97: $i,SV13: $i] :
      ( ( ~ ( relation @ SV13 )
        | ~ ( relation @ SV97 )
        | ( relation @ ( relation_composition @ SV13 @ SV97 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[617]) ).

thf(745,plain,
    ! [SV98: $i,SV14: $i] :
      ( ( ~ ( relation @ SV14 )
        | ~ ( relation @ SV98 )
        | ( relation @ ( set_union2 @ SV14 @ SV98 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[618]) ).

thf(746,plain,
    ! [SV15: $i] :
      ( ( ( ( empty @ SV15 )
          | ~ ( relation @ SV15 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV15 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[619]) ).

thf(747,plain,
    ! [SV16: $i] :
      ( ( ( ( empty @ SV16 )
          | ~ ( relation @ SV16 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV16 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[620]) ).

thf(748,plain,
    ! [SV17: $i] :
      ( ( ( ~ ( relation @ SV17 ) )
        = $true )
      | ( ( ( relation_inverse @ ( relation_inverse @ SV17 ) )
          = SV17 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[621]) ).

thf(749,plain,
    ! [SV22: $i] :
      ( ( ( ~ ( empty @ SV22 ) )
        = $true )
      | ( ( SV22 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[626]) ).

thf(750,plain,
    ! [SV99: $i,SV23: $i] :
      ( ( ~ ( in @ SV23 @ SV99 )
        | ( ( set_union2 @ ( singleton @ SV23 ) @ SV99 )
          = SV99 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[627]) ).

thf(751,plain,
    ! [SV100: $i,SV24: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV24 ) @ SV100 )
        | ~ ( in @ SV24 @ SV100 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[628]) ).

thf(752,plain,
    ! [SV101: $i,SV25: $i] :
      ( ( ( in @ SV25 @ SV101 )
        | ( disjoint @ ( singleton @ SV25 ) @ SV101 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[629]) ).

thf(753,plain,
    ! [SV26: $i,SV102: $i] :
      ( ( ~ ( element @ SV102 @ ( powerset @ SV26 ) )
        | ! [SY512: $i] :
            ( ~ ( in @ SY512 @ SV102 )
            | ( in @ SY512 @ SV26 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[630]) ).

thf(754,plain,
    ! [SV103: $i,SV27: $i] :
      ( ( ~ ( subset @ SV27 @ SV103 )
        | ! [SY513: $i] :
            ( ( in @ SY513 @ SV27 )
            | ( subset @ SV27 @ ( set_difference @ SV103 @ ( singleton @ SY513 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[631]) ).

thf(755,plain,
    ! [SV104: $i,SV28: $i] :
      ( ( ~ ( in @ SV28 @ SV104 )
        | ( subset @ SV28 @ ( union @ SV104 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[632]) ).

thf(756,plain,
    ! [SV105: $i,SV29: $i] :
      ( ( ! [SY514: $i,SY515: $i] :
            ( ~ ( subset @ SV29 @ SV105 )
            | ~ ( subset @ SY514 @ SY515 )
            | ( subset @ ( cartesian_product2 @ SV29 @ SY514 ) @ ( cartesian_product2 @ SV105 @ SY515 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[633]) ).

thf(757,plain,
    ! [SV106: $i,SV30: $i] :
      ( ( ~ ( subset @ SV30 @ SV106 )
        | ( ( set_union2 @ SV30 @ SV106 )
          = SV106 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[634]) ).

thf(758,plain,
    ! [SV107: $i,SV31: $i] :
      ( ( subset @ ( set_intersection2 @ SV31 @ SV107 ) @ SV31 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[635]) ).

thf(759,plain,
    ! [SV108: $i,SV32: $i] :
      ( ( ! [SY516: $i] :
            ( ~ ( subset @ SV32 @ SV108 )
            | ~ ( subset @ SV32 @ SY516 )
            | ( subset @ SV32 @ ( set_intersection2 @ SV108 @ SY516 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[636]) ).

thf(760,plain,
    ! [SV109: $i,SV33: $i] :
      ( ( ! [SY517: $i] :
            ( ~ ( subset @ SV33 @ SV109 )
            | ~ ( subset @ SV109 @ SY517 )
            | ( subset @ SV33 @ SY517 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[637]) ).

thf(761,plain,
    ! [SV110: $i,SV34: $i] :
      ( ( ~ ( subset @ SV34 @ SV110 )
        | ! [SY518: $i] : ( subset @ ( set_intersection2 @ SV34 @ SY518 ) @ ( set_intersection2 @ SV110 @ SY518 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[638]) ).

thf(762,plain,
    ! [SV111: $i,SV35: $i] :
      ( ( ~ ( subset @ SV35 @ SV111 )
        | ( ( set_intersection2 @ SV35 @ SV111 )
          = SV35 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[639]) ).

thf(763,plain,
    ! [SV112: $i,SV36: $i] :
      ( ( ~ ( subset @ SV36 @ SV112 )
        | ! [SY519: $i] : ( subset @ ( set_difference @ SV36 @ SY519 ) @ ( set_difference @ SV112 @ SY519 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[640]) ).

thf(764,plain,
    ! [SV113: $i,SV37: $i] :
      ( ( subset @ ( set_difference @ SV37 @ SV113 ) @ SV37 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[641]) ).

thf(765,plain,
    ! [SV114: $i,SV38: $i] :
      ( ( ( set_union2 @ SV38 @ ( set_difference @ SV114 @ SV38 ) )
        = ( set_union2 @ SV38 @ SV114 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[642]) ).

thf(766,plain,
    ! [SV115: $i,SV39: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV39 @ SV115 ) @ SV115 )
        = ( set_difference @ SV39 @ SV115 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[643]) ).

thf(767,plain,
    ! [SV116: $i,SV40: $i] :
      ( ( ~ ( subset @ SV40 @ SV116 )
        | ( SV116
          = ( set_union2 @ SV40 @ ( set_difference @ SV116 @ SV40 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[644]) ).

thf(768,plain,
    ! [SV117: $i,SV41: $i] :
      ( ( ~ ( in @ SV41 @ SV117 )
        | ( ( set_union2 @ ( singleton @ SV41 ) @ SV117 )
          = SV117 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[645]) ).

thf(769,plain,
    ! [SV118: $i,SV42: $i] :
      ( ( ( set_difference @ SV42 @ ( set_difference @ SV42 @ SV118 ) )
        = ( set_intersection2 @ SV42 @ SV118 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[646]) ).

thf(770,plain,
    ! [SV43: $i,SV119: $i] :
      ( ( ~ ( proper_subset @ SV119 @ SV43 )
        | ~ ( subset @ SV43 @ SV119 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[647]) ).

thf(771,plain,
    ! [SV44: $i,SV120: $i] :
      ( ( ! [SY520: $i] :
            ( ~ ( disjoint @ SV120 @ SY520 )
            | ~ ( subset @ SV44 @ SV120 )
            | ( disjoint @ SV44 @ SY520 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[648]) ).

thf(772,plain,
    ! [SV121: $i,SV46: $i] :
      ( ( ~ ( subset @ ( singleton @ SV46 ) @ ( singleton @ SV121 ) )
        | ( SV46 = SV121 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[650]) ).

thf(773,plain,
    ! [SV122: $i,SV47: $i] :
      ( ( subset @ SV47 @ ( set_union2 @ SV47 @ SV122 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[651]) ).

thf(774,plain,
    ! [SV123: $i,SV48: $i] :
      ( ( ! [SY521: $i] :
            ( ~ ( subset @ SV48 @ SV123 )
            | ~ ( subset @ SY521 @ SV123 )
            | ( subset @ ( set_union2 @ SV48 @ SY521 ) @ SV123 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[652]) ).

thf(775,plain,
    ! [SV124: $i,SV49: $i] :
      ( ( ! [SY522: $i] :
            ( ( singleton @ SV49 )
           != ( unordered_pair @ SV124 @ SY522 ) )
        | ( SV49 = SV124 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[653]) ).

thf(776,plain,
    ! [SV125: $i,SV50: $i] :
      ( ( ~ ( in @ SV50 @ SV125 )
        | ( subset @ SV50 @ ( union @ SV125 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[654]) ).

thf(777,plain,
    ! [SV126: $i,SV52: $i] :
      ( ( ! [SY523: $i] :
            ( ( ( singleton @ SV52 )
             != ( unordered_pair @ SV126 @ SY523 ) )
            | ( SV126 = SY523 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[656]) ).

thf(778,plain,
    ! [SV127: $i,SV53: $i] :
      ( ( ~ ( in @ SV53 @ SV127 )
        | ~ ( in @ SV127 @ SV53 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[657]) ).

thf(779,plain,
    ! [SV128: $i,SV54: $i] :
      ( ( ( set_union2 @ SV54 @ SV128 )
        = ( set_union2 @ SV128 @ SV54 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[658]) ).

thf(780,plain,
    ! [SV129: $i,SV55: $i] :
      ( ( ( set_intersection2 @ SV55 @ SV129 )
        = ( set_intersection2 @ SV129 @ SV55 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[659]) ).

thf(781,plain,
    ! [SV130: $i,SV56: $i] :
      ( ( ( ordered_pair @ SV56 @ SV130 )
        = ( unordered_pair @ ( unordered_pair @ SV56 @ SV130 ) @ ( singleton @ SV56 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[660]) ).

thf(782,plain,
    ! [SV57: $i] :
      ( ( empty @ ( powerset @ SV57 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[661]) ).

thf(783,plain,
    ! [SV131: $i,SV58: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV58 @ SV131 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[662]) ).

thf(784,plain,
    ! [SV59: $i] :
      ( ( empty @ ( singleton @ SV59 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[663]) ).

thf(785,plain,
    ! [SV60: $i] :
      ( ( ( empty @ SV60 )
        = $true )
      | ( ( ! [SY384: $i] :
              ~ ( empty @ ( set_union2 @ SV60 @ SY384 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[664]) ).

thf(786,plain,
    ! [SV132: $i,SV61: $i] :
      ( ( ~ ( empty @ ( unordered_pair @ SV61 @ SV132 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[665]) ).

thf(787,plain,
    ! [SV62: $i] :
      ( ( ( empty @ SV62 )
        = $true )
      | ( ( ! [SY386: $i] :
              ~ ( empty @ ( set_union2 @ SY386 @ SV62 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[666]) ).

thf(788,plain,
    ! [SV133: $i,SV63: $i] :
      ( ( ( empty @ SV63 )
        | ( empty @ SV133 )
        | ~ ( empty @ ( cartesian_product2 @ SV63 @ SV133 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[667]) ).

thf(789,plain,
    ! [SV134: $i,SV67: $i] :
      ( ( ~ ( disjoint @ SV67 @ SV134 )
        | ( disjoint @ SV134 @ SV67 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[672]) ).

thf(790,plain,
    ! [SV135: $i,SV68: $i] :
      ( ( ~ ( in @ SV68 @ SV135 )
        | ( element @ SV68 @ SV135 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[673]) ).

thf(791,plain,
    ! [SV136: $i,SV69: $i] :
      ( ( ~ ( element @ SV69 @ SV136 )
        | ( empty @ SV136 )
        | ( in @ SV69 @ SV136 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[674]) ).

thf(792,plain,
    ! [SV70: $i,SV137: $i] :
      ( ( ! [SY524: $i] :
            ( ~ ( element @ SV137 @ ( powerset @ SY524 ) )
            | ~ ( in @ SV70 @ SV137 )
            | ( element @ SV70 @ SY524 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[675]) ).

thf(793,plain,
    ! [SV71: $i,SV138: $i] :
      ( ( ! [SY525: $i] :
            ( ~ ( element @ SV138 @ ( powerset @ SY525 ) )
            | ~ ( in @ SV71 @ SV138 )
            | ~ ( empty @ SY525 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[676]) ).

thf(794,plain,
    ! [SV72: $i,SV139: $i] :
      ( ( ~ ( empty @ SV139 )
        | ~ ( in @ SV72 @ SV139 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[677]) ).

thf(795,plain,
    ! [SV140: $i,SV73: $i] :
      ( ( ( SV73 = SV140 )
        | ~ ( empty @ SV73 )
        | ~ ( empty @ SV140 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[678]) ).

thf(796,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[679]) ).

thf(797,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[679]) ).

thf(798,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[680]) ).

thf(799,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX0 @ SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[680]) ).

thf(800,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[681]) ).

thf(801,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( SX0 != SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( subset @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[681]) ).

thf(802,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK30_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[682]) ).

thf(803,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[682]) ).

thf(804,plain,
    ! [SV74: $i,SV141: $i] :
      ( ( ~ ( ~ ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV74 )
            | ~ ~ ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV141 ) )
        | ( element @ SV74 @ ( powerset @ SV141 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[683]) ).

thf(805,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ~ ( ~ ! [SY526: $i,SY527: $i] :
                  ( ~ ( in @ SV75 @ SY526 )
                  | ~ ( in @ SV142 @ SY527 )
                  | ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY526 @ SY527 ) ) )
            | ~ ~ ( ~ ! [SY528: $i] :
                        ( ! [SY529: $i] :
                            ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY528 @ SY529 ) )
                        | ( in @ SV75 @ SY528 ) )
                  | ~ ! [SY530: $i,SY531: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY530 @ SY531 ) )
                        | ( in @ SV142 @ SY531 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[684]) ).

thf(806,plain,
    ! [SV76: $i] :
      ( ( ~ ! [SY405: $i] :
              ( ~ ( subset @ SV76 @ SY405 )
              | ! [SY406: $i] : ( subset @ ( cartesian_product2 @ SV76 @ SY406 ) @ ( cartesian_product2 @ SY405 @ SY406 ) ) )
        | ~ ! [SY407: $i] :
              ( ~ ( subset @ SV76 @ SY407 )
              | ! [SY408: $i] : ( subset @ ( cartesian_product2 @ SY408 @ SV76 ) @ ( cartesian_product2 @ SY408 @ SY407 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[685]) ).

thf(807,plain,
    ( ( ~ ( empty @ empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[686]) ).

thf(808,plain,
    ( ( ~ ( relation @ empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[686]) ).

thf(809,plain,
    ( ( ( ( relation_dom @ empty_set )
       != empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[687]) ).

thf(810,plain,
    ( ( ( ( relation_rng @ empty_set )
       != empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[687]) ).

thf(811,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[688]) ).

thf(812,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[688]) ).

thf(813,plain,
    ! [SV77: $i] :
      ( ( ~ ! [SY409: $i,SY410: $i] :
              ( ~ ( relation @ SY410 )
              | ~ ( in @ ( ordered_pair @ SV77 @ SY409 ) @ SY410 )
              | ( in @ SV77 @ ( relation_dom @ SY410 ) ) )
        | ~ ! [SY411: $i,SY412: $i] :
              ( ~ ( relation @ SY412 )
              | ~ ( in @ ( ordered_pair @ SV77 @ SY411 ) @ SY412 )
              | ( in @ SY411 @ ( relation_rng @ SY412 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[689]) ).

thf(814,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( empty @ ( relation_rng @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[690]) ).

thf(815,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( relation @ ( relation_rng @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[690]) ).

thf(816,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
                | ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) )
            | ~ ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
                | ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) ) )
        | ( SV78 = SV143 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[691]) ).

thf(817,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY414: $i,SY415: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                            | ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SV79 ) )
                        | ~ ( ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                            | ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY414 ) ) )
                  | ~ ( ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                      | ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SV79 )
                      | ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY414 ) ) )
              | ( SY415
                = ( set_union2 @ SV79 @ SY414 ) ) )
        | ~ ! [SY416: $i,SY417: $i] :
              ( ( SY417
               != ( set_union2 @ SV79 @ SY416 ) )
              | ~ ( ~ ! [SY418: $i] :
                        ( ~ ( in @ SY418 @ SY417 )
                        | ( in @ SY418 @ SV79 )
                        | ( in @ SY418 @ SY416 ) )
                  | ~ ~ ( ~ ! [SY419: $i] :
                              ( ~ ( in @ SY419 @ SV79 )
                              | ( in @ SY419 @ SY417 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY416 )
                              | ( in @ SX3 @ SY417 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[692]) ).

thf(818,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[693]) ).

thf(819,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[693]) ).

thf(820,plain,
    ! [SV80: $i] :
      ( ( ~ ! [SY421: $i,SY422: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SV80 )
                      | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY421 )
                      | ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SV80 )
                            | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) )
                        | ~ ( ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY421 )
                            | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) ) ) )
              | ( SY422
                = ( set_difference @ SV80 @ SY421 ) ) )
        | ~ ! [SY423: $i,SY424: $i] :
              ( ( SY424
               != ( set_difference @ SV80 @ SY423 ) )
              | ~ ( ~ ! [SY425: $i] :
                        ( ~ ( in @ SY425 @ SV80 )
                        | ( in @ SY425 @ SY423 )
                        | ( in @ SY425 @ SY424 ) )
                  | ~ ~ ( ~ ! [SY426: $i] :
                              ( ~ ( in @ SY426 @ SY424 )
                              | ( in @ SY426 @ SV80 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY424 )
                              | ~ ( in @ SX3 @ SY423 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[694]) ).

thf(821,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[695]) ).

thf(822,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[695]) ).

thf(823,plain,
    ( ( ~ ~ ( empty @ sK34_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[696]) ).

thf(824,plain,
    ( ( ~ ( relation @ sK34_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[696]) ).

thf(825,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[697]) ).

thf(826,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[697]) ).

thf(827,plain,
    ! [SV81: $i] :
      ( ( ~ ! [SY428: $i,SY429: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SV81 )
                      | ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY428 )
                      | ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SV81 )
                            | ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) )
                        | ~ ( ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY428 )
                            | ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) ) ) )
              | ( SY429
                = ( set_intersection2 @ SV81 @ SY428 ) ) )
        | ~ ! [SY430: $i,SY431: $i] :
              ( ( SY431
               != ( set_intersection2 @ SV81 @ SY430 ) )
              | ~ ( ~ ! [SY432: $i] :
                        ( ~ ( in @ SY432 @ SV81 )
                        | ~ ( in @ SY432 @ SY430 )
                        | ( in @ SY432 @ SY431 ) )
                  | ~ ~ ( ~ ! [SY433: $i] :
                              ( ~ ( in @ SY433 @ SY431 )
                              | ( in @ SY433 @ SV81 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY431 )
                              | ( in @ SX3 @ SY430 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[698]) ).

thf(828,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[699]) ).

thf(829,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[699]) ).

thf(830,plain,
    ! [SV82: $i] :
      ( ( ~ ! [SY435: $i] :
              ( ~ ( subset @ SY435 @ ( sK32_B @ SV82 ) )
              | ( are_equipotent @ SY435 @ ( sK32_B @ SV82 ) )
              | ( in @ SY435 @ ( sK32_B @ SV82 ) ) )
        | ~ ~ ( ~ ! [SY436: $i] :
                    ( ~ ( in @ SY436 @ ( sK32_B @ SV82 ) )
                    | ( in @ ( powerset @ SY436 ) @ ( sK32_B @ SV82 ) ) )
              | ~ ~ ( ~ ! [SY437: $i,SY438: $i] :
                          ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
                          | ~ ( subset @ SY438 @ SY437 )
                          | ( in @ SY438 @ ( sK32_B @ SV82 ) ) )
                    | ~ ( in @ SV82 @ ( sK32_B @ SV82 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[700]) ).

thf(831,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ~ ( ~ ! [SY532: $i,SY533: $i] :
                  ( ~ ( in @ SV83 @ SY532 )
                  | ~ ( in @ SV144 @ SY533 )
                  | ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY532 @ SY533 ) ) )
            | ~ ~ ( ~ ! [SY534: $i] :
                        ( ! [SY535: $i] :
                            ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY534 @ SY535 ) )
                        | ( in @ SV83 @ SY534 ) )
                  | ~ ! [SY536: $i,SY537: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY536 @ SY537 ) )
                        | ( in @ SV144 @ SY537 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[701]) ).

thf(832,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK29_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK29_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[702]) ).

thf(833,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( singleton @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ( SX2 != SX0 )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( SX2 = SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[702]) ).

thf(834,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY312 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_SY312 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[703]) ).

thf(835,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( union @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ! [SX3: $i] :
                          ( ~ ( in @ SX2 @ SX3 )
                          | ~ ( in @ SX3 @ SX0 ) )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ~ ( ~ ( in @ SX2 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[703]) ).

thf(836,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
             != empty_set )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[704]) ).

thf(837,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
             != empty_set )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[704]) ).

thf(838,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[705]) ).

thf(839,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[705]) ).

thf(840,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY446: $i] :
              ( ~ ( subset @ SY446 @ ( sK2_B @ SV84 ) )
              | ( are_equipotent @ SY446 @ ( sK2_B @ SV84 ) )
              | ( in @ SY446 @ ( sK2_B @ SV84 ) ) )
        | ~ ~ ( ~ ! [SY447: $i] :
                    ( ~ ( ~ ! [SY448: $i] :
                              ( ~ ( subset @ SY448 @ SY447 )
                              | ( in @ SY448 @ ( sK3_SY300 @ SY447 @ SV84 ) ) )
                        | ~ ( in @ ( sK3_SY300 @ SY447 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
                    | ~ ( in @ SY447 @ ( sK2_B @ SV84 ) ) )
              | ~ ~ ( ~ ! [SY449: $i,SY450: $i] :
                          ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
                          | ~ ( subset @ SY450 @ SY449 )
                          | ( in @ SY450 @ ( sK2_B @ SV84 ) ) )
                    | ~ ( in @ SV84 @ ( sK2_B @ SV84 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[706]) ).

thf(841,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
              = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[707]) ).

thf(842,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
              = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[707]) ).

thf(843,plain,
    ! [SV85: $i] :
      ( ( ~ ! [SY451: $i,SY452: $i] :
              ( ~ ( ~ ( ! [SY453: $i,SY454: $i] :
                          ( ~ ( in @ SY453 @ SV85 )
                          | ~ ( in @ SY454 @ SY451 )
                          | ( ( sK23_D @ SY452 @ SY451 @ SV85 )
                           != ( ordered_pair @ SY453 @ SY454 ) ) )
                      | ~ ( in @ ( sK23_D @ SY452 @ SY451 @ SV85 ) @ SY452 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY452 @ SY451 @ SV85 ) @ SV85 )
                                | ~ ( in @ ( sK25_SY318 @ SY452 @ SY451 @ SV85 ) @ SY451 ) )
                          | ( ( sK23_D @ SY452 @ SY451 @ SV85 )
                           != ( ordered_pair @ ( sK24_SY316 @ SY452 @ SY451 @ SV85 ) @ ( sK25_SY318 @ SY452 @ SY451 @ SV85 ) ) ) )
                      | ( in @ ( sK23_D @ SY452 @ SY451 @ SV85 ) @ SY452 ) ) )
              | ( SY452
                = ( cartesian_product2 @ SV85 @ SY451 ) ) )
        | ~ ! [SY455: $i,SY456: $i] :
              ( ( SY456
               != ( cartesian_product2 @ SV85 @ SY455 ) )
              | ~ ( ~ ! [SY457: $i] :
                        ( ! [SY458: $i,SY459: $i] :
                            ( ~ ( in @ SY458 @ SV85 )
                            | ~ ( in @ SY459 @ SY455 )
                            | ( SY457
                             != ( ordered_pair @ SY458 @ SY459 ) ) )
                        | ( in @ SY457 @ SY456 ) )
                  | ~ ! [SY460: $i] :
                        ( ~ ( in @ SY460 @ SY456 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY460 @ SY456 @ SY455 @ SV85 ) @ SV85 )
                                  | ~ ( in @ ( sK22_SY313 @ SY460 @ SY456 @ SY455 @ SV85 ) @ SY455 ) )
                            | ( SY460
                             != ( ordered_pair @ ( sK21_E @ SY460 @ SY456 @ SY455 @ SV85 ) @ ( sK22_SY313 @ SY460 @ SY456 @ SY455 @ SV85 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[708]) ).

thf(844,plain,
    ! [SV86: $i] :
      ( ( ( ~ ( relation @ SV86 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY461: $i] :
                    ( ~ ( ~ ( ! [SY462: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ SY462 ) @ SV86 )
                            | ~ ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ ( sK41_SY326 @ SY461 @ SV86 ) ) @ SV86 )
                            | ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) ) )
                    | ( SY461
                      = ( relation_dom @ SV86 ) ) )
              | ~ ! [SY463: $i] :
                    ( ( SY463
                     != ( relation_dom @ SV86 ) )
                    | ~ ( ~ ! [SY464: $i] :
                              ( ! [SY465: $i] :
                                  ~ ( in @ ( ordered_pair @ SY464 @ SY465 ) @ SV86 )
                              | ( in @ SY464 @ SY463 ) )
                        | ~ ! [SY466: $i] :
                              ( ~ ( in @ SY466 @ SY463 )
                              | ( in @ ( ordered_pair @ SY466 @ ( sK39_D @ SY466 @ SY463 @ SV86 ) ) @ SV86 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[709]) ).

thf(845,plain,
    ! [SV87: $i] :
      ( ( ~ ( element @ ( sK6_B @ SV87 ) @ ( powerset @ SV87 ) )
        | ~ ( empty @ ( sK6_B @ SV87 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[710]) ).

thf(846,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[711]) ).

thf(847,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[711]) ).

thf(848,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[712]) ).

thf(849,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[712]) ).

thf(850,plain,
    ! [SV88: $i] :
      ( ( ( ~ ( relation @ SV88 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY467: $i] :
                    ( ~ ( ~ ( ! [SY468: $i] :
                                ~ ( in @ ( ordered_pair @ SY468 @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                            | ~ ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY467 @ SV88 ) @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                            | ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) ) )
                    | ( SY467
                      = ( relation_rng @ SV88 ) ) )
              | ~ ! [SY469: $i] :
                    ( ( SY469
                     != ( relation_rng @ SV88 ) )
                    | ~ ( ~ ! [SY470: $i] :
                              ( ! [SY471: $i] :
                                  ~ ( in @ ( ordered_pair @ SY471 @ SY470 ) @ SV88 )
                              | ( in @ SY470 @ SY469 ) )
                        | ~ ! [SY472: $i] :
                              ( ~ ( in @ SY472 @ SY469 )
                              | ( in @ ( ordered_pair @ ( sK36_D @ SY472 @ SY469 @ SV88 ) @ SY472 ) @ SV88 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[713]) ).

thf(851,plain,
    ( ( ~ ( empty @ sK35_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[714]) ).

thf(852,plain,
    ( ( ~ ( relation @ sK35_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[714]) ).

thf(853,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                                | ( in @ SX2 @ SX1 ) )
                          | ~ ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX1 )
                                | ! [SX3: $i] :
                                    ( ~ ( in @ SX3 @ SX0 )
                                    | ( in @ SX2 @ SX3 ) ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[715]) ).

thf(854,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ( SX1 = empty_set ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1 != empty_set )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[715]) ).

thf(855,plain,
    ! [SV89: $i] :
      ( ( ~ ! [SY473: $i,SY474: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                            | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                             != SV89 ) )
                        | ~ ( ~ ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                            | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                             != SY473 ) ) )
                  | ~ ( ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                      | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                        = SV89 )
                      | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                        = SY473 ) ) )
              | ( SY474
                = ( unordered_pair @ SV89 @ SY473 ) ) )
        | ~ ! [SY475: $i,SY476: $i] :
              ( ( SY476
               != ( unordered_pair @ SV89 @ SY475 ) )
              | ~ ( ~ ! [SY477: $i] :
                        ( ~ ( in @ SY477 @ SY476 )
                        | ( SY477 = SV89 )
                        | ( SY477 = SY475 ) )
                  | ~ ~ ( ~ ! [SY478: $i] :
                              ( ( SY478 != SV89 )
                              | ( in @ SY478 @ SY476 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY475 )
                              | ( in @ SX3 @ SY476 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[716]) ).

thf(856,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[717]) ).

thf(857,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[717]) ).

thf(858,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( element @ SX1 @ SX0 )
                      | ( in @ SX1 @ SX0 ) ) )
            | ~ ! [SX0: $i] :
                  ( ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( in @ SX1 @ SX0 )
                      | ( element @ SX1 @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[718]) ).

thf(859,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ~ ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( element @ SX1 @ SX0 )
                      | ( empty @ SX1 ) ) )
            | ~ ! [SX0: $i] :
                  ( ~ ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( empty @ SX1 )
                      | ( element @ SX1 @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[718]) ).

thf(860,plain,
    ! [SV90: $i] :
      ( ( ( ~ ( relation @ SV90 ) )
        = $true )
      | ( ( ! [SY480: $i] :
              ( ~ ( relation @ SY480 )
              | ~ ( ~ ! [SY481: $i] :
                        ( ~ ( relation @ SY481 )
                        | ~ ( ~ ( ! [SY482: $i] :
                                    ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ SY482 ) @ SV90 )
                                    | ~ ( in @ ( ordered_pair @ SY482 @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY480 ) )
                                | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY481 ) )
                            | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ ( sK12_SY309 @ SY481 @ SY480 @ SV90 ) ) @ SV90 )
                                    | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY481 @ SY480 @ SV90 ) @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY480 ) )
                                | ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY481 ) ) )
                        | ( SY481
                          = ( relation_composition @ SV90 @ SY480 ) ) )
                  | ~ ! [SY483: $i] :
                        ( ~ ( relation @ SY483 )
                        | ( SY483
                         != ( relation_composition @ SV90 @ SY480 ) )
                        | ~ ( ~ ! [SY484: $i,SY485: $i] :
                                  ( ! [SY486: $i] :
                                      ( ~ ( in @ ( ordered_pair @ SY484 @ SY486 ) @ SV90 )
                                      | ~ ( in @ ( ordered_pair @ SY486 @ SY485 ) @ SY480 ) )
                                  | ( in @ ( ordered_pair @ SY484 @ SY485 ) @ SY483 ) )
                            | ~ ! [SY487: $i,SY488: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY487 @ SY488 ) @ SY483 )
                                  | ~ ( ~ ( in @ ( ordered_pair @ SY487 @ ( sK9_F @ SY488 @ SY487 @ SY483 @ SY480 @ SV90 ) ) @ SV90 )
                                      | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY488 @ SY487 @ SY483 @ SY480 @ SV90 ) @ SY488 ) @ SY480 ) ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[719]) ).

thf(861,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( empty @ ( relation_dom @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[720]) ).

thf(862,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( relation @ ( relation_dom @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[720]) ).

thf(863,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[721]) ).

thf(864,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( powerset @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( subset @ SX2 @ SX0 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( subset @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[721]) ).

thf(865,plain,
    ! [SV91: $i] :
      ( ( ( ~ ( relation @ SV91 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY489: $i] :
                    ( ~ ( relation @ SY489 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                            | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                            | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) ) )
                    | ( SY489
                      = ( relation_inverse @ SV91 ) ) )
              | ~ ! [SY490: $i] :
                    ( ~ ( relation @ SY490 )
                    | ( SY490
                     != ( relation_inverse @ SV91 ) )
                    | ~ ( ~ ! [SY491: $i,SY492: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY491 @ SY492 ) @ SY490 )
                              | ( in @ ( ordered_pair @ SY492 @ SY491 ) @ SV91 ) )
                        | ~ ! [SY493: $i,SY494: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY494 @ SY493 ) @ SV91 )
                              | ( in @ ( ordered_pair @ SY493 @ SY494 ) @ SY490 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[722]) ).

thf(866,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[723]) ).

thf(867,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[723]) ).

thf(868,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[724]) ).

thf(869,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[724]) ).

thf(870,plain,
    ! [SV92: $i] :
      ( ( ( empty @ SV92 )
        = $true )
      | ( ( ~ ( ~ ( element @ ( sK8_B @ SV92 ) @ ( powerset @ SV92 ) )
              | ~ ~ ( empty @ ( sK8_B @ SV92 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[725]) ).

thf(871,plain,
    ! [SV93: $i] :
      ( ( ~ ! [SY495: $i,SY496: $i] :
              ( ~ ( in @ SV93 @ SY496 )
              | ~ ( in @ SY495 @ SY496 )
              | ( subset @ ( unordered_pair @ SV93 @ SY495 ) @ SY496 ) )
        | ~ ~ ( ~ ! [SY497: $i,SY498: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV93 @ SY497 ) @ SY498 )
                    | ( in @ SV93 @ SY498 ) )
              | ~ ! [SY499: $i,SY500: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV93 @ SY499 ) @ SY500 )
                    | ( in @ SY499 @ SY500 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[726]) ).

thf(872,plain,
    ! [SV94: $i] :
      ( ( ~ ! [SY501: $i,SY502: $i] :
              ( ~ ( relation @ SY502 )
              | ~ ( in @ ( ordered_pair @ SV94 @ SY501 ) @ SY502 )
              | ( in @ SV94 @ ( relation_field @ SY502 ) ) )
        | ~ ! [SY503: $i,SY504: $i] :
              ( ~ ( relation @ SY504 )
              | ~ ( in @ ( ordered_pair @ SV94 @ SY503 ) @ SY504 )
              | ( in @ SY503 @ ( relation_field @ SY504 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[727]) ).

thf(873,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK42_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[728]) ).

thf(874,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[728]) ).

thf(875,plain,
    ( ( ( ( relation_dom @ sK1_A )
       != empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[729]) ).

thf(876,plain,
    ( ( ~ ( ( ( relation_rng @ sK1_A )
           != empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[729]) ).

thf(877,plain,
    ! [SV145: $i,SV95: $i] :
      ( ( ~ ( ~ ! [SY538: $i] :
                  ( ! [SY539: $i] :
                      ( ( ordered_pair @ SV95 @ SV145 )
                     != ( ordered_pair @ SY538 @ SY539 ) )
                  | ( SV95 = SY538 ) )
            | ~ ! [SY540: $i,SY541: $i] :
                  ( ( ( ordered_pair @ SV95 @ SV145 )
                   != ( ordered_pair @ SY540 @ SY541 ) )
                  | ( SV145 = SY541 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[730]) ).

thf(878,plain,
    ! [SV96: $i] :
      ( ( ( ~ ( relation @ SV96 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY510: $i] :
                    ( ~ ( relation @ SY510 )
                    | ~ ( subset @ SV96 @ SY510 )
                    | ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SY510 ) ) )
              | ~ ! [SY511: $i] :
                    ( ~ ( relation @ SY511 )
                    | ~ ( subset @ SV96 @ SY511 )
                    | ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SY511 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[731]) ).

thf(879,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK48_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK48_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[732]) ).

thf(880,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK46_C @ SX1 @ SX0 ) @ ( sK47_SY329 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[732]) ).

thf(881,plain,
    ! [SV2: $i] :
      ( ( ( relation @ SV2 )
        = $false )
      | ( ( subset @ SV2 @ ( cartesian_product2 @ ( relation_dom @ SV2 ) @ ( relation_rng @ SV2 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[734]) ).

thf(882,plain,
    ! [SV4: $i] :
      ( ( ( subset @ SV4 @ empty_set )
        = $false )
      | ( ( SV4 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[735]) ).

thf(883,plain,
    ! [SV5: $i] :
      ( ( ( relation @ SV5 )
        = $false )
      | ( ( ! [SY333: $i] :
              ( ~ ( relation @ SY333 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV5 @ SY333 ) ) @ ( relation_dom @ SV5 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[736]) ).

thf(884,plain,
    ! [SV6: $i] :
      ( ( ( relation @ SV6 )
        = $false )
      | ( ( ! [SY334: $i] :
              ( ~ ( relation @ SY334 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV6 @ SY334 ) ) @ ( relation_rng @ SY334 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[737]) ).

thf(885,plain,
    ! [SV7: $i] :
      ( ( ( relation @ SV7 )
        = $false )
      | ( ( ! [SY335: $i] :
              ( ~ ( relation @ SY335 )
              | ~ ( subset @ ( relation_rng @ SV7 ) @ ( relation_dom @ SY335 ) )
              | ( ( relation_dom @ ( relation_composition @ SV7 @ SY335 ) )
                = ( relation_dom @ SV7 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[738]) ).

thf(886,plain,
    ! [SV8: $i] :
      ( ( ( relation @ SV8 )
        = $false )
      | ( ( ! [SY336: $i] :
              ( ~ ( relation @ SY336 )
              | ~ ( subset @ ( relation_dom @ SV8 ) @ ( relation_rng @ SY336 ) )
              | ( ( relation_rng @ ( relation_composition @ SY336 @ SV8 ) )
                = ( relation_rng @ SV8 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[739]) ).

thf(887,plain,
    ! [SV9: $i] :
      ( ( ( relation @ SV9 )
        = $false )
      | ( ( ( in @ ( ordered_pair @ ( sK49_B @ SV9 ) @ ( sK50_SY332 @ SV9 ) ) @ SV9 )
          | ( SV9 = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[740]) ).

thf(888,plain,
    ! [SV10: $i] :
      ( ( ( empty @ SV10 )
        = $false )
      | ( ( relation @ SV10 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[741]) ).

thf(889,plain,
    ! [SV11: $i] :
      ( ( ( relation @ SV11 )
        = $false )
      | ( ( ( relation_field @ SV11 )
          = ( set_union2 @ ( relation_dom @ SV11 ) @ ( relation_rng @ SV11 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[742]) ).

thf(890,plain,
    ! [SV12: $i] :
      ( ( ( relation @ SV12 )
        = $false )
      | ( ( relation @ ( relation_inverse @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[743]) ).

thf(891,plain,
    ! [SV97: $i,SV13: $i] :
      ( ( ( ~ ( relation @ SV13 )
          | ~ ( relation @ SV97 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV13 @ SV97 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[744]) ).

thf(892,plain,
    ! [SV98: $i,SV14: $i] :
      ( ( ( ~ ( relation @ SV14 )
          | ~ ( relation @ SV98 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV14 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[745]) ).

thf(893,plain,
    ! [SV15: $i] :
      ( ( ( empty @ SV15 )
        = $true )
      | ( ( ~ ( relation @ SV15 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV15 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[746]) ).

thf(894,plain,
    ! [SV16: $i] :
      ( ( ( empty @ SV16 )
        = $true )
      | ( ( ~ ( relation @ SV16 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV16 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[747]) ).

thf(895,plain,
    ! [SV17: $i] :
      ( ( ( relation @ SV17 )
        = $false )
      | ( ( ( relation_inverse @ ( relation_inverse @ SV17 ) )
          = SV17 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[748]) ).

thf(896,plain,
    ! [SV22: $i] :
      ( ( ( empty @ SV22 )
        = $false )
      | ( ( SV22 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[749]) ).

thf(897,plain,
    ! [SV99: $i,SV23: $i] :
      ( ( ( ~ ( in @ SV23 @ SV99 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV23 ) @ SV99 )
          = SV99 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[750]) ).

thf(898,plain,
    ! [SV100: $i,SV24: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV24 ) @ SV100 ) )
        = $true )
      | ( ( ~ ( in @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[751]) ).

thf(899,plain,
    ! [SV101: $i,SV25: $i] :
      ( ( ( in @ SV25 @ SV101 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV25 ) @ SV101 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[752]) ).

thf(900,plain,
    ! [SV26: $i,SV102: $i] :
      ( ( ( ~ ( element @ SV102 @ ( powerset @ SV26 ) ) )
        = $true )
      | ( ( ! [SY512: $i] :
              ( ~ ( in @ SY512 @ SV102 )
              | ( in @ SY512 @ SV26 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[753]) ).

thf(901,plain,
    ! [SV103: $i,SV27: $i] :
      ( ( ( ~ ( subset @ SV27 @ SV103 ) )
        = $true )
      | ( ( ! [SY513: $i] :
              ( ( in @ SY513 @ SV27 )
              | ( subset @ SV27 @ ( set_difference @ SV103 @ ( singleton @ SY513 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[754]) ).

thf(902,plain,
    ! [SV104: $i,SV28: $i] :
      ( ( ( ~ ( in @ SV28 @ SV104 ) )
        = $true )
      | ( ( subset @ SV28 @ ( union @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[755]) ).

thf(903,plain,
    ! [SV146: $i,SV105: $i,SV29: $i] :
      ( ( ! [SY542: $i] :
            ( ~ ( subset @ SV29 @ SV105 )
            | ~ ( subset @ SV146 @ SY542 )
            | ( subset @ ( cartesian_product2 @ SV29 @ SV146 ) @ ( cartesian_product2 @ SV105 @ SY542 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[756]) ).

thf(904,plain,
    ! [SV106: $i,SV30: $i] :
      ( ( ( ~ ( subset @ SV30 @ SV106 ) )
        = $true )
      | ( ( ( set_union2 @ SV30 @ SV106 )
          = SV106 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[757]) ).

thf(905,plain,
    ! [SV147: $i,SV108: $i,SV32: $i] :
      ( ( ~ ( subset @ SV32 @ SV108 )
        | ~ ( subset @ SV32 @ SV147 )
        | ( subset @ SV32 @ ( set_intersection2 @ SV108 @ SV147 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[759]) ).

thf(906,plain,
    ! [SV148: $i,SV109: $i,SV33: $i] :
      ( ( ~ ( subset @ SV33 @ SV109 )
        | ~ ( subset @ SV109 @ SV148 )
        | ( subset @ SV33 @ SV148 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[760]) ).

thf(907,plain,
    ! [SV110: $i,SV34: $i] :
      ( ( ( ~ ( subset @ SV34 @ SV110 ) )
        = $true )
      | ( ( ! [SY518: $i] : ( subset @ ( set_intersection2 @ SV34 @ SY518 ) @ ( set_intersection2 @ SV110 @ SY518 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[761]) ).

thf(908,plain,
    ! [SV111: $i,SV35: $i] :
      ( ( ( ~ ( subset @ SV35 @ SV111 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV35 @ SV111 )
          = SV35 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[762]) ).

thf(909,plain,
    ! [SV112: $i,SV36: $i] :
      ( ( ( ~ ( subset @ SV36 @ SV112 ) )
        = $true )
      | ( ( ! [SY519: $i] : ( subset @ ( set_difference @ SV36 @ SY519 ) @ ( set_difference @ SV112 @ SY519 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[763]) ).

thf(910,plain,
    ! [SV116: $i,SV40: $i] :
      ( ( ( ~ ( subset @ SV40 @ SV116 ) )
        = $true )
      | ( ( SV116
          = ( set_union2 @ SV40 @ ( set_difference @ SV116 @ SV40 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[767]) ).

thf(911,plain,
    ! [SV117: $i,SV41: $i] :
      ( ( ( ~ ( in @ SV41 @ SV117 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV41 ) @ SV117 )
          = SV117 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[768]) ).

thf(912,plain,
    ! [SV43: $i,SV119: $i] :
      ( ( ( ~ ( proper_subset @ SV119 @ SV43 ) )
        = $true )
      | ( ( ~ ( subset @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[770]) ).

thf(913,plain,
    ! [SV44: $i,SV149: $i,SV120: $i] :
      ( ( ~ ( disjoint @ SV120 @ SV149 )
        | ~ ( subset @ SV44 @ SV120 )
        | ( disjoint @ SV44 @ SV149 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[771]) ).

thf(914,plain,
    ! [SV121: $i,SV46: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV46 ) @ ( singleton @ SV121 ) ) )
        = $true )
      | ( ( SV46 = SV121 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[772]) ).

thf(915,plain,
    ! [SV150: $i,SV123: $i,SV48: $i] :
      ( ( ~ ( subset @ SV48 @ SV123 )
        | ~ ( subset @ SV150 @ SV123 )
        | ( subset @ ( set_union2 @ SV48 @ SV150 ) @ SV123 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[774]) ).

thf(916,plain,
    ! [SV124: $i,SV49: $i] :
      ( ( ( ! [SY522: $i] :
              ( ( singleton @ SV49 )
             != ( unordered_pair @ SV124 @ SY522 ) ) )
        = $true )
      | ( ( SV49 = SV124 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[775]) ).

thf(917,plain,
    ! [SV125: $i,SV50: $i] :
      ( ( ( ~ ( in @ SV50 @ SV125 ) )
        = $true )
      | ( ( subset @ SV50 @ ( union @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[776]) ).

thf(918,plain,
    ! [SV151: $i,SV126: $i,SV52: $i] :
      ( ( ( ( singleton @ SV52 )
         != ( unordered_pair @ SV126 @ SV151 ) )
        | ( SV126 = SV151 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[777]) ).

thf(919,plain,
    ! [SV127: $i,SV53: $i] :
      ( ( ( ~ ( in @ SV53 @ SV127 ) )
        = $true )
      | ( ( ~ ( in @ SV127 @ SV53 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[778]) ).

thf(920,plain,
    ! [SV131: $i,SV58: $i] :
      ( ( empty @ ( ordered_pair @ SV58 @ SV131 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[783]) ).

thf(921,plain,
    ! [SV152: $i,SV60: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV60 @ SV152 ) ) )
        = $true )
      | ( ( empty @ SV60 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[785]) ).

thf(922,plain,
    ! [SV132: $i,SV61: $i] :
      ( ( empty @ ( unordered_pair @ SV61 @ SV132 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[786]) ).

thf(923,plain,
    ! [SV62: $i,SV153: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV153 @ SV62 ) ) )
        = $true )
      | ( ( empty @ SV62 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[787]) ).

thf(924,plain,
    ! [SV133: $i,SV63: $i] :
      ( ( ( ( empty @ SV63 )
          | ( empty @ SV133 ) )
        = $true )
      | ( ( ~ ( empty @ ( cartesian_product2 @ SV63 @ SV133 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[788]) ).

thf(925,plain,
    ! [SV134: $i,SV67: $i] :
      ( ( ( ~ ( disjoint @ SV67 @ SV134 ) )
        = $true )
      | ( ( disjoint @ SV134 @ SV67 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[789]) ).

thf(926,plain,
    ! [SV135: $i,SV68: $i] :
      ( ( ( ~ ( in @ SV68 @ SV135 ) )
        = $true )
      | ( ( element @ SV68 @ SV135 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[790]) ).

thf(927,plain,
    ! [SV136: $i,SV69: $i] :
      ( ( ( ~ ( element @ SV69 @ SV136 ) )
        = $true )
      | ( ( ( empty @ SV136 )
          | ( in @ SV69 @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[791]) ).

thf(928,plain,
    ! [SV70: $i,SV154: $i,SV137: $i] :
      ( ( ~ ( element @ SV137 @ ( powerset @ SV154 ) )
        | ~ ( in @ SV70 @ SV137 )
        | ( element @ SV70 @ SV154 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[792]) ).

thf(929,plain,
    ! [SV71: $i,SV155: $i,SV138: $i] :
      ( ( ~ ( element @ SV138 @ ( powerset @ SV155 ) )
        | ~ ( in @ SV71 @ SV138 )
        | ~ ( empty @ SV155 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[793]) ).

thf(930,plain,
    ! [SV72: $i,SV139: $i] :
      ( ( ( ~ ( empty @ SV139 ) )
        = $true )
      | ( ( ~ ( in @ SV72 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[794]) ).

thf(931,plain,
    ! [SV140: $i,SV73: $i] :
      ( ( ( ( SV73 = SV140 )
          | ~ ( empty @ SV73 ) )
        = $true )
      | ( ( ~ ( empty @ SV140 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[795]) ).

thf(932,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[796]) ).

thf(933,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[797]) ).

thf(934,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[798]) ).

thf(935,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0 != SX1 )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0 != SX1 )
                | ( subset @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[799]) ).

thf(936,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[800]) ).

thf(937,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( proper_subset @ SX0 @ SX1 )
                | ( SX0 != SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( proper_subset @ SX0 @ SX1 )
                | ( subset @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[801]) ).

thf(938,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK30_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[802]) ).

thf(939,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[803]) ).

thf(940,plain,
    ! [SV74: $i,SV141: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV74 )
              | ~ ~ ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV141 ) ) )
        = $true )
      | ( ( element @ SV74 @ ( powerset @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[804]) ).

thf(941,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ~ ! [SY526: $i,SY527: $i] :
              ( ~ ( in @ SV75 @ SY526 )
              | ~ ( in @ SV142 @ SY527 )
              | ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY526 @ SY527 ) ) )
        | ~ ~ ( ~ ! [SY528: $i] :
                    ( ! [SY529: $i] :
                        ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY528 @ SY529 ) )
                    | ( in @ SV75 @ SY528 ) )
              | ~ ! [SY530: $i,SY531: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY530 @ SY531 ) )
                    | ( in @ SV142 @ SY531 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[805]) ).

thf(942,plain,
    ! [SV76: $i] :
      ( ( ~ ! [SY405: $i] :
              ( ~ ( subset @ SV76 @ SY405 )
              | ! [SY406: $i] : ( subset @ ( cartesian_product2 @ SV76 @ SY406 ) @ ( cartesian_product2 @ SY405 @ SY406 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[806]) ).

thf(943,plain,
    ! [SV76: $i] :
      ( ( ~ ! [SY407: $i] :
              ( ~ ( subset @ SV76 @ SY407 )
              | ! [SY408: $i] : ( subset @ ( cartesian_product2 @ SY408 @ SV76 ) @ ( cartesian_product2 @ SY408 @ SY407 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[806]) ).

thf(944,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[807]) ).

thf(945,plain,
    ( ( relation @ empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[808]) ).

thf(946,plain,
    ( ( ( relation_dom @ empty_set )
      = empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[809]) ).

thf(947,plain,
    ( ( ( relation_rng @ empty_set )
      = empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[810]) ).

thf(948,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[811]) ).

thf(949,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[812]) ).

thf(950,plain,
    ! [SV77: $i] :
      ( ( ~ ! [SY409: $i,SY410: $i] :
              ( ~ ( relation @ SY410 )
              | ~ ( in @ ( ordered_pair @ SV77 @ SY409 ) @ SY410 )
              | ( in @ SV77 @ ( relation_dom @ SY410 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[813]) ).

thf(951,plain,
    ! [SV77: $i] :
      ( ( ~ ! [SY411: $i,SY412: $i] :
              ( ~ ( relation @ SY412 )
              | ~ ( in @ ( ordered_pair @ SV77 @ SY411 ) @ SY412 )
              | ( in @ SY411 @ ( relation_rng @ SY412 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[813]) ).

thf(952,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( empty @ ( relation_rng @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[814]) ).

thf(953,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( relation @ ( relation_rng @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[815]) ).

thf(954,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
                  | ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) )
              | ~ ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
                  | ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) ) ) )
        = $true )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[816]) ).

thf(955,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY414: $i,SY415: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                            | ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SV79 ) )
                        | ~ ( ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                            | ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY414 ) ) )
                  | ~ ( ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                      | ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SV79 )
                      | ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY414 ) ) )
              | ( SY415
                = ( set_union2 @ SV79 @ SY414 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[817]) ).

thf(956,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY416: $i,SY417: $i] :
              ( ( SY417
               != ( set_union2 @ SV79 @ SY416 ) )
              | ~ ( ~ ! [SY418: $i] :
                        ( ~ ( in @ SY418 @ SY417 )
                        | ( in @ SY418 @ SV79 )
                        | ( in @ SY418 @ SY416 ) )
                  | ~ ~ ( ~ ! [SY419: $i] :
                              ( ~ ( in @ SY419 @ SV79 )
                              | ( in @ SY419 @ SY417 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY416 )
                              | ( in @ SX3 @ SY417 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[817]) ).

thf(957,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[818]) ).

thf(958,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[819]) ).

thf(959,plain,
    ! [SV80: $i] :
      ( ( ~ ! [SY421: $i,SY422: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SV80 )
                      | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY421 )
                      | ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SV80 )
                            | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) )
                        | ~ ( ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY421 )
                            | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) ) ) )
              | ( SY422
                = ( set_difference @ SV80 @ SY421 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[820]) ).

thf(960,plain,
    ! [SV80: $i] :
      ( ( ~ ! [SY423: $i,SY424: $i] :
              ( ( SY424
               != ( set_difference @ SV80 @ SY423 ) )
              | ~ ( ~ ! [SY425: $i] :
                        ( ~ ( in @ SY425 @ SV80 )
                        | ( in @ SY425 @ SY423 )
                        | ( in @ SY425 @ SY424 ) )
                  | ~ ~ ( ~ ! [SY426: $i] :
                              ( ~ ( in @ SY426 @ SY424 )
                              | ( in @ SY426 @ SV80 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY424 )
                              | ~ ( in @ SX3 @ SY423 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[820]) ).

thf(961,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[821]) ).

thf(962,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[822]) ).

thf(963,plain,
    ( ( ~ ( empty @ sK34_A ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[823]) ).

thf(964,plain,
    ( ( relation @ sK34_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[824]) ).

thf(965,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[825]) ).

thf(966,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[826]) ).

thf(967,plain,
    ! [SV81: $i] :
      ( ( ~ ! [SY428: $i,SY429: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SV81 )
                      | ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY428 )
                      | ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SV81 )
                            | ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) )
                        | ~ ( ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY428 )
                            | ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) ) ) )
              | ( SY429
                = ( set_intersection2 @ SV81 @ SY428 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[827]) ).

thf(968,plain,
    ! [SV81: $i] :
      ( ( ~ ! [SY430: $i,SY431: $i] :
              ( ( SY431
               != ( set_intersection2 @ SV81 @ SY430 ) )
              | ~ ( ~ ! [SY432: $i] :
                        ( ~ ( in @ SY432 @ SV81 )
                        | ~ ( in @ SY432 @ SY430 )
                        | ( in @ SY432 @ SY431 ) )
                  | ~ ~ ( ~ ! [SY433: $i] :
                              ( ~ ( in @ SY433 @ SY431 )
                              | ( in @ SY433 @ SV81 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY431 )
                              | ( in @ SX3 @ SY430 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[827]) ).

thf(969,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[828]) ).

thf(970,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[829]) ).

thf(971,plain,
    ! [SV82: $i] :
      ( ( ~ ! [SY435: $i] :
              ( ~ ( subset @ SY435 @ ( sK32_B @ SV82 ) )
              | ( are_equipotent @ SY435 @ ( sK32_B @ SV82 ) )
              | ( in @ SY435 @ ( sK32_B @ SV82 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[830]) ).

thf(972,plain,
    ! [SV82: $i] :
      ( ( ~ ~ ( ~ ! [SY436: $i] :
                    ( ~ ( in @ SY436 @ ( sK32_B @ SV82 ) )
                    | ( in @ ( powerset @ SY436 ) @ ( sK32_B @ SV82 ) ) )
              | ~ ~ ( ~ ! [SY437: $i,SY438: $i] :
                          ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
                          | ~ ( subset @ SY438 @ SY437 )
                          | ( in @ SY438 @ ( sK32_B @ SV82 ) ) )
                    | ~ ( in @ SV82 @ ( sK32_B @ SV82 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[830]) ).

thf(973,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ~ ! [SY532: $i,SY533: $i] :
              ( ~ ( in @ SV83 @ SY532 )
              | ~ ( in @ SV144 @ SY533 )
              | ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY532 @ SY533 ) ) )
        | ~ ~ ( ~ ! [SY534: $i] :
                    ( ! [SY535: $i] :
                        ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY534 @ SY535 ) )
                    | ( in @ SV83 @ SY534 ) )
              | ~ ! [SY536: $i,SY537: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY536 @ SY537 ) )
                    | ( in @ SV144 @ SY537 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[831]) ).

thf(974,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK29_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK29_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[832]) ).

thf(975,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1
           != ( singleton @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ( SX2 != SX0 )
                    | ( in @ SX2 @ SX1 ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX1 )
                    | ( SX2 = SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[833]) ).

thf(976,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ! [SX2: $i] :
                      ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX2 )
                      | ~ ( in @ SX2 @ SX0 ) )
                  | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ~ ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY312 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK18_SY312 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[834]) ).

thf(977,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1
           != ( union @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ! [SX3: $i] :
                        ( ~ ( in @ SX2 @ SX3 )
                        | ~ ( in @ SX3 @ SX0 ) )
                    | ( in @ SX2 @ SX1 ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX1 )
                    | ~ ( ~ ( in @ SX2 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[835]) ).

thf(978,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_dom @ SX0 )
           != empty_set )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[836]) ).

thf(979,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_rng @ SX0 )
           != empty_set )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[837]) ).

thf(980,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[838]) ).

thf(981,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0
                 != ( singleton @ SX1 ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[839]) ).

thf(982,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY446: $i] :
              ( ~ ( subset @ SY446 @ ( sK2_B @ SV84 ) )
              | ( are_equipotent @ SY446 @ ( sK2_B @ SV84 ) )
              | ( in @ SY446 @ ( sK2_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[840]) ).

thf(983,plain,
    ! [SV84: $i] :
      ( ( ~ ~ ( ~ ! [SY447: $i] :
                    ( ~ ( ~ ! [SY448: $i] :
                              ( ~ ( subset @ SY448 @ SY447 )
                              | ( in @ SY448 @ ( sK3_SY300 @ SY447 @ SV84 ) ) )
                        | ~ ( in @ ( sK3_SY300 @ SY447 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
                    | ~ ( in @ SY447 @ ( sK2_B @ SV84 ) ) )
              | ~ ~ ( ~ ! [SY449: $i,SY450: $i] :
                          ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
                          | ~ ( subset @ SY450 @ SY449 )
                          | ( in @ SY450 @ ( sK2_B @ SV84 ) ) )
                    | ~ ( in @ SV84 @ ( sK2_B @ SV84 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[840]) ).

thf(984,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_rng @ SX0 )
            = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[841]) ).

thf(985,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_dom @ SX0 )
            = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[842]) ).

thf(986,plain,
    ! [SV85: $i] :
      ( ( ~ ! [SY451: $i,SY452: $i] :
              ( ~ ( ~ ( ! [SY453: $i,SY454: $i] :
                          ( ~ ( in @ SY453 @ SV85 )
                          | ~ ( in @ SY454 @ SY451 )
                          | ( ( sK23_D @ SY452 @ SY451 @ SV85 )
                           != ( ordered_pair @ SY453 @ SY454 ) ) )
                      | ~ ( in @ ( sK23_D @ SY452 @ SY451 @ SV85 ) @ SY452 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY452 @ SY451 @ SV85 ) @ SV85 )
                                | ~ ( in @ ( sK25_SY318 @ SY452 @ SY451 @ SV85 ) @ SY451 ) )
                          | ( ( sK23_D @ SY452 @ SY451 @ SV85 )
                           != ( ordered_pair @ ( sK24_SY316 @ SY452 @ SY451 @ SV85 ) @ ( sK25_SY318 @ SY452 @ SY451 @ SV85 ) ) ) )
                      | ( in @ ( sK23_D @ SY452 @ SY451 @ SV85 ) @ SY452 ) ) )
              | ( SY452
                = ( cartesian_product2 @ SV85 @ SY451 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[843]) ).

thf(987,plain,
    ! [SV85: $i] :
      ( ( ~ ! [SY455: $i,SY456: $i] :
              ( ( SY456
               != ( cartesian_product2 @ SV85 @ SY455 ) )
              | ~ ( ~ ! [SY457: $i] :
                        ( ! [SY458: $i,SY459: $i] :
                            ( ~ ( in @ SY458 @ SV85 )
                            | ~ ( in @ SY459 @ SY455 )
                            | ( SY457
                             != ( ordered_pair @ SY458 @ SY459 ) ) )
                        | ( in @ SY457 @ SY456 ) )
                  | ~ ! [SY460: $i] :
                        ( ~ ( in @ SY460 @ SY456 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY460 @ SY456 @ SY455 @ SV85 ) @ SV85 )
                                  | ~ ( in @ ( sK22_SY313 @ SY460 @ SY456 @ SY455 @ SV85 ) @ SY455 ) )
                            | ( SY460
                             != ( ordered_pair @ ( sK21_E @ SY460 @ SY456 @ SY455 @ SV85 ) @ ( sK22_SY313 @ SY460 @ SY456 @ SY455 @ SV85 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[843]) ).

thf(988,plain,
    ! [SV86: $i] :
      ( ( ( relation @ SV86 )
        = $false )
      | ( ( ~ ( ~ ! [SY461: $i] :
                    ( ~ ( ~ ( ! [SY462: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ SY462 ) @ SV86 )
                            | ~ ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ ( sK41_SY326 @ SY461 @ SV86 ) ) @ SV86 )
                            | ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) ) )
                    | ( SY461
                      = ( relation_dom @ SV86 ) ) )
              | ~ ! [SY463: $i] :
                    ( ( SY463
                     != ( relation_dom @ SV86 ) )
                    | ~ ( ~ ! [SY464: $i] :
                              ( ! [SY465: $i] :
                                  ~ ( in @ ( ordered_pair @ SY464 @ SY465 ) @ SV86 )
                              | ( in @ SY464 @ SY463 ) )
                        | ~ ! [SY466: $i] :
                              ( ~ ( in @ SY466 @ SY463 )
                              | ( in @ ( ordered_pair @ SY466 @ ( sK39_D @ SY466 @ SY463 @ SV86 ) ) @ SV86 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[844]) ).

thf(989,plain,
    ! [SV87: $i] :
      ( ( ~ ( element @ ( sK6_B @ SV87 ) @ ( powerset @ SV87 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[845]) ).

thf(990,plain,
    ! [SV87: $i] :
      ( ( ~ ( empty @ ( sK6_B @ SV87 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[845]) ).

thf(991,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[846]) ).

thf(992,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[847]) ).

thf(993,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[848]) ).

thf(994,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[849]) ).

thf(995,plain,
    ! [SV88: $i] :
      ( ( ( relation @ SV88 )
        = $false )
      | ( ( ~ ( ~ ! [SY467: $i] :
                    ( ~ ( ~ ( ! [SY468: $i] :
                                ~ ( in @ ( ordered_pair @ SY468 @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                            | ~ ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY467 @ SV88 ) @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                            | ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) ) )
                    | ( SY467
                      = ( relation_rng @ SV88 ) ) )
              | ~ ! [SY469: $i] :
                    ( ( SY469
                     != ( relation_rng @ SV88 ) )
                    | ~ ( ~ ! [SY470: $i] :
                              ( ! [SY471: $i] :
                                  ~ ( in @ ( ordered_pair @ SY471 @ SY470 ) @ SV88 )
                              | ( in @ SY470 @ SY469 ) )
                        | ~ ! [SY472: $i] :
                              ( ~ ( in @ SY472 @ SY469 )
                              | ( in @ ( ordered_pair @ ( sK36_D @ SY472 @ SY469 @ SV88 ) @ SY472 ) @ SV88 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[850]) ).

thf(996,plain,
    ( ( empty @ sK35_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[851]) ).

thf(997,plain,
    ( ( relation @ sK35_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[852]) ).

thf(998,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                                | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX0 )
                                | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                            | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                              | ( in @ SX2 @ SX1 ) )
                        | ~ ! [SX2: $i] :
                              ( ~ ( in @ SX2 @ SX1 )
                              | ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX0 )
                                  | ( in @ SX2 @ SX3 ) ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[853]) ).

thf(999,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ( SX1 = empty_set ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ( ( SX1 != empty_set )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[854]) ).

thf(1000,plain,
    ! [SV89: $i] :
      ( ( ~ ! [SY473: $i,SY474: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                            | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                             != SV89 ) )
                        | ~ ( ~ ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                            | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                             != SY473 ) ) )
                  | ~ ( ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                      | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                        = SV89 )
                      | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                        = SY473 ) ) )
              | ( SY474
                = ( unordered_pair @ SV89 @ SY473 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[855]) ).

thf(1001,plain,
    ! [SV89: $i] :
      ( ( ~ ! [SY475: $i,SY476: $i] :
              ( ( SY476
               != ( unordered_pair @ SV89 @ SY475 ) )
              | ~ ( ~ ! [SY477: $i] :
                        ( ~ ( in @ SY477 @ SY476 )
                        | ( SY477 = SV89 )
                        | ( SY477 = SY475 ) )
                  | ~ ~ ( ~ ! [SY478: $i] :
                              ( ( SY478 != SV89 )
                              | ( in @ SY478 @ SY476 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY475 )
                              | ( in @ SX3 @ SY476 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[855]) ).

thf(1002,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[856]) ).

thf(1003,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[857]) ).

thf(1004,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( empty @ SX0 )
                | ! [SX1: $i] :
                    ( ~ ( element @ SX1 @ SX0 )
                    | ( in @ SX1 @ SX0 ) ) )
          | ~ ! [SX0: $i] :
                ( ( empty @ SX0 )
                | ! [SX1: $i] :
                    ( ~ ( in @ SX1 @ SX0 )
                    | ( element @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[858]) ).

thf(1005,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ! [SX1: $i] :
                    ( ~ ( element @ SX1 @ SX0 )
                    | ( empty @ SX1 ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ! [SX1: $i] :
                    ( ~ ( empty @ SX1 )
                    | ( element @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[859]) ).

thf(1006,plain,
    ! [SV90: $i] :
      ( ( ( relation @ SV90 )
        = $false )
      | ( ( ! [SY480: $i] :
              ( ~ ( relation @ SY480 )
              | ~ ( ~ ! [SY481: $i] :
                        ( ~ ( relation @ SY481 )
                        | ~ ( ~ ( ! [SY482: $i] :
                                    ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ SY482 ) @ SV90 )
                                    | ~ ( in @ ( ordered_pair @ SY482 @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY480 ) )
                                | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY481 ) )
                            | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ ( sK12_SY309 @ SY481 @ SY480 @ SV90 ) ) @ SV90 )
                                    | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY481 @ SY480 @ SV90 ) @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY480 ) )
                                | ( in @ ( ordered_pair @ ( sK10_D @ SY481 @ SY480 @ SV90 ) @ ( sK11_SY305 @ SY481 @ SY480 @ SV90 ) ) @ SY481 ) ) )
                        | ( SY481
                          = ( relation_composition @ SV90 @ SY480 ) ) )
                  | ~ ! [SY483: $i] :
                        ( ~ ( relation @ SY483 )
                        | ( SY483
                         != ( relation_composition @ SV90 @ SY480 ) )
                        | ~ ( ~ ! [SY484: $i,SY485: $i] :
                                  ( ! [SY486: $i] :
                                      ( ~ ( in @ ( ordered_pair @ SY484 @ SY486 ) @ SV90 )
                                      | ~ ( in @ ( ordered_pair @ SY486 @ SY485 ) @ SY480 ) )
                                  | ( in @ ( ordered_pair @ SY484 @ SY485 ) @ SY483 ) )
                            | ~ ! [SY487: $i,SY488: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY487 @ SY488 ) @ SY483 )
                                  | ~ ( ~ ( in @ ( ordered_pair @ SY487 @ ( sK9_F @ SY488 @ SY487 @ SY483 @ SY480 @ SV90 ) ) @ SV90 )
                                      | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY488 @ SY487 @ SY483 @ SY480 @ SV90 ) @ SY488 ) @ SY480 ) ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[860]) ).

thf(1007,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( empty @ ( relation_dom @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[861]) ).

thf(1008,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( relation @ ( relation_dom @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[862]) ).

thf(1009,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[863]) ).

thf(1010,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1
           != ( powerset @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX1 )
                    | ( subset @ SX2 @ SX0 ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( subset @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[864]) ).

thf(1011,plain,
    ! [SV91: $i] :
      ( ( ( relation @ SV91 )
        = $false )
      | ( ( ~ ( ~ ! [SY489: $i] :
                    ( ~ ( relation @ SY489 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                            | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                            | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) ) )
                    | ( SY489
                      = ( relation_inverse @ SV91 ) ) )
              | ~ ! [SY490: $i] :
                    ( ~ ( relation @ SY490 )
                    | ( SY490
                     != ( relation_inverse @ SV91 ) )
                    | ~ ( ~ ! [SY491: $i,SY492: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY491 @ SY492 ) @ SY490 )
                              | ( in @ ( ordered_pair @ SY492 @ SY491 ) @ SV91 ) )
                        | ~ ! [SY493: $i,SY494: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY494 @ SY493 ) @ SV91 )
                              | ( in @ ( ordered_pair @ SY493 @ SY494 ) @ SY490 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[865]) ).

thf(1012,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[866]) ).

thf(1013,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0
                 != ( singleton @ SX1 ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[867]) ).

thf(1014,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[868]) ).

thf(1015,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[869]) ).

thf(1016,plain,
    ! [SV92: $i] :
      ( ( ( ~ ( element @ ( sK8_B @ SV92 ) @ ( powerset @ SV92 ) )
          | ~ ~ ( empty @ ( sK8_B @ SV92 ) ) )
        = $false )
      | ( ( empty @ SV92 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[870]) ).

thf(1017,plain,
    ! [SV93: $i] :
      ( ( ~ ! [SY495: $i,SY496: $i] :
              ( ~ ( in @ SV93 @ SY496 )
              | ~ ( in @ SY495 @ SY496 )
              | ( subset @ ( unordered_pair @ SV93 @ SY495 ) @ SY496 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[871]) ).

thf(1018,plain,
    ! [SV93: $i] :
      ( ( ~ ~ ( ~ ! [SY497: $i,SY498: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV93 @ SY497 ) @ SY498 )
                    | ( in @ SV93 @ SY498 ) )
              | ~ ! [SY499: $i,SY500: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV93 @ SY499 ) @ SY500 )
                    | ( in @ SY499 @ SY500 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[871]) ).

thf(1019,plain,
    ! [SV94: $i] :
      ( ( ~ ! [SY501: $i,SY502: $i] :
              ( ~ ( relation @ SY502 )
              | ~ ( in @ ( ordered_pair @ SV94 @ SY501 ) @ SY502 )
              | ( in @ SV94 @ ( relation_field @ SY502 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[872]) ).

thf(1020,plain,
    ! [SV94: $i] :
      ( ( ~ ! [SY503: $i,SY504: $i] :
              ( ~ ( relation @ SY504 )
              | ~ ( in @ ( ordered_pair @ SV94 @ SY503 ) @ SY504 )
              | ( in @ SY503 @ ( relation_field @ SY504 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[872]) ).

thf(1021,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK42_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[873]) ).

thf(1022,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[874]) ).

thf(1023,plain,
    ( ( ( relation_dom @ sK1_A )
      = empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[875]) ).

thf(1024,plain,
    ( ( ( ( relation_rng @ sK1_A )
       != empty_set ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[876]) ).

thf(1025,plain,
    ! [SV145: $i,SV95: $i] :
      ( ( ~ ! [SY538: $i] :
              ( ! [SY539: $i] :
                  ( ( ordered_pair @ SV95 @ SV145 )
                 != ( ordered_pair @ SY538 @ SY539 ) )
              | ( SV95 = SY538 ) )
        | ~ ! [SY540: $i,SY541: $i] :
              ( ( ( ordered_pair @ SV95 @ SV145 )
               != ( ordered_pair @ SY540 @ SY541 ) )
              | ( SV145 = SY541 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[877]) ).

thf(1026,plain,
    ! [SV96: $i] :
      ( ( ( relation @ SV96 )
        = $false )
      | ( ( ~ ( ~ ! [SY510: $i] :
                    ( ~ ( relation @ SY510 )
                    | ~ ( subset @ SV96 @ SY510 )
                    | ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SY510 ) ) )
              | ~ ! [SY511: $i] :
                    ( ~ ( relation @ SY511 )
                    | ~ ( subset @ SV96 @ SY511 )
                    | ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SY511 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[878]) ).

thf(1027,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                    ( ( sK48_B @ SX0 )
                   != ( ordered_pair @ SX1 @ SX2 ) )
              | ~ ( in @ ( sK48_B @ SX0 ) @ SX0 ) )
          | ( relation @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[879]) ).

thf(1028,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ( SX1
                = ( ordered_pair @ ( sK46_C @ SX1 @ SX0 ) @ ( sK47_SY329 @ SX1 @ SX0 ) ) )
              | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[880]) ).

thf(1029,plain,
    ! [SV5: $i,SV156: $i] :
      ( ( ( ~ ( relation @ SV156 )
          | ( subset @ ( relation_dom @ ( relation_composition @ SV5 @ SV156 ) ) @ ( relation_dom @ SV5 ) ) )
        = $true )
      | ( ( relation @ SV5 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[883]) ).

thf(1030,plain,
    ! [SV6: $i,SV157: $i] :
      ( ( ( ~ ( relation @ SV157 )
          | ( subset @ ( relation_rng @ ( relation_composition @ SV6 @ SV157 ) ) @ ( relation_rng @ SV157 ) ) )
        = $true )
      | ( ( relation @ SV6 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[884]) ).

thf(1031,plain,
    ! [SV7: $i,SV158: $i] :
      ( ( ( ~ ( relation @ SV158 )
          | ~ ( subset @ ( relation_rng @ SV7 ) @ ( relation_dom @ SV158 ) )
          | ( ( relation_dom @ ( relation_composition @ SV7 @ SV158 ) )
            = ( relation_dom @ SV7 ) ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[885]) ).

thf(1032,plain,
    ! [SV8: $i,SV159: $i] :
      ( ( ( ~ ( relation @ SV159 )
          | ~ ( subset @ ( relation_dom @ SV8 ) @ ( relation_rng @ SV159 ) )
          | ( ( relation_rng @ ( relation_composition @ SV159 @ SV8 ) )
            = ( relation_rng @ SV8 ) ) )
        = $true )
      | ( ( relation @ SV8 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[886]) ).

thf(1033,plain,
    ! [SV9: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK49_B @ SV9 ) @ ( sK50_SY332 @ SV9 ) ) @ SV9 )
        = $true )
      | ( ( SV9 = empty_set )
        = $true )
      | ( ( relation @ SV9 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[887]) ).

thf(1034,plain,
    ! [SV97: $i,SV13: $i] :
      ( ( ( ~ ( relation @ SV13 ) )
        = $true )
      | ( ( ~ ( relation @ SV97 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV13 @ SV97 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[891]) ).

thf(1035,plain,
    ! [SV98: $i,SV14: $i] :
      ( ( ( ~ ( relation @ SV14 ) )
        = $true )
      | ( ( ~ ( relation @ SV98 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV14 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[892]) ).

thf(1036,plain,
    ! [SV15: $i] :
      ( ( ( relation @ SV15 )
        = $false )
      | ( ( empty @ SV15 )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV15 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[893]) ).

thf(1037,plain,
    ! [SV16: $i] :
      ( ( ( relation @ SV16 )
        = $false )
      | ( ( empty @ SV16 )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV16 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[894]) ).

thf(1038,plain,
    ! [SV99: $i,SV23: $i] :
      ( ( ( in @ SV23 @ SV99 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV23 ) @ SV99 )
          = SV99 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[897]) ).

thf(1039,plain,
    ! [SV100: $i,SV24: $i] :
      ( ( ( disjoint @ ( singleton @ SV24 ) @ SV100 )
        = $false )
      | ( ( ~ ( in @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[898]) ).

thf(1040,plain,
    ! [SV26: $i,SV102: $i] :
      ( ( ( element @ SV102 @ ( powerset @ SV26 ) )
        = $false )
      | ( ( ! [SY512: $i] :
              ( ~ ( in @ SY512 @ SV102 )
              | ( in @ SY512 @ SV26 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[900]) ).

thf(1041,plain,
    ! [SV103: $i,SV27: $i] :
      ( ( ( subset @ SV27 @ SV103 )
        = $false )
      | ( ( ! [SY513: $i] :
              ( ( in @ SY513 @ SV27 )
              | ( subset @ SV27 @ ( set_difference @ SV103 @ ( singleton @ SY513 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[901]) ).

thf(1042,plain,
    ! [SV104: $i,SV28: $i] :
      ( ( ( in @ SV28 @ SV104 )
        = $false )
      | ( ( subset @ SV28 @ ( union @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[902]) ).

thf(1043,plain,
    ! [SV160: $i,SV146: $i,SV105: $i,SV29: $i] :
      ( ( ~ ( subset @ SV29 @ SV105 )
        | ~ ( subset @ SV146 @ SV160 )
        | ( subset @ ( cartesian_product2 @ SV29 @ SV146 ) @ ( cartesian_product2 @ SV105 @ SV160 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[903]) ).

thf(1044,plain,
    ! [SV106: $i,SV30: $i] :
      ( ( ( subset @ SV30 @ SV106 )
        = $false )
      | ( ( ( set_union2 @ SV30 @ SV106 )
          = SV106 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[904]) ).

thf(1045,plain,
    ! [SV147: $i,SV108: $i,SV32: $i] :
      ( ( ( ~ ( subset @ SV32 @ SV108 )
          | ~ ( subset @ SV32 @ SV147 ) )
        = $true )
      | ( ( subset @ SV32 @ ( set_intersection2 @ SV108 @ SV147 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[905]) ).

thf(1046,plain,
    ! [SV148: $i,SV109: $i,SV33: $i] :
      ( ( ( ~ ( subset @ SV33 @ SV109 )
          | ~ ( subset @ SV109 @ SV148 ) )
        = $true )
      | ( ( subset @ SV33 @ SV148 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[906]) ).

thf(1047,plain,
    ! [SV110: $i,SV34: $i] :
      ( ( ( subset @ SV34 @ SV110 )
        = $false )
      | ( ( ! [SY518: $i] : ( subset @ ( set_intersection2 @ SV34 @ SY518 ) @ ( set_intersection2 @ SV110 @ SY518 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[907]) ).

thf(1048,plain,
    ! [SV111: $i,SV35: $i] :
      ( ( ( subset @ SV35 @ SV111 )
        = $false )
      | ( ( ( set_intersection2 @ SV35 @ SV111 )
          = SV35 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[908]) ).

thf(1049,plain,
    ! [SV112: $i,SV36: $i] :
      ( ( ( subset @ SV36 @ SV112 )
        = $false )
      | ( ( ! [SY519: $i] : ( subset @ ( set_difference @ SV36 @ SY519 ) @ ( set_difference @ SV112 @ SY519 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[909]) ).

thf(1050,plain,
    ! [SV116: $i,SV40: $i] :
      ( ( ( subset @ SV40 @ SV116 )
        = $false )
      | ( ( SV116
          = ( set_union2 @ SV40 @ ( set_difference @ SV116 @ SV40 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[910]) ).

thf(1051,plain,
    ! [SV117: $i,SV41: $i] :
      ( ( ( in @ SV41 @ SV117 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV41 ) @ SV117 )
          = SV117 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[911]) ).

thf(1052,plain,
    ! [SV43: $i,SV119: $i] :
      ( ( ( proper_subset @ SV119 @ SV43 )
        = $false )
      | ( ( ~ ( subset @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[912]) ).

thf(1053,plain,
    ! [SV44: $i,SV149: $i,SV120: $i] :
      ( ( ( ~ ( disjoint @ SV120 @ SV149 )
          | ~ ( subset @ SV44 @ SV120 ) )
        = $true )
      | ( ( disjoint @ SV44 @ SV149 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[913]) ).

thf(1054,plain,
    ! [SV121: $i,SV46: $i] :
      ( ( ( subset @ ( singleton @ SV46 ) @ ( singleton @ SV121 ) )
        = $false )
      | ( ( SV46 = SV121 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[914]) ).

thf(1055,plain,
    ! [SV150: $i,SV123: $i,SV48: $i] :
      ( ( ( ~ ( subset @ SV48 @ SV123 )
          | ~ ( subset @ SV150 @ SV123 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV48 @ SV150 ) @ SV123 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[915]) ).

thf(1056,plain,
    ! [SV161: $i,SV124: $i,SV49: $i] :
      ( ( ( ( ( singleton @ SV49 )
           != ( unordered_pair @ SV124 @ SV161 ) ) )
        = $true )
      | ( ( SV49 = SV124 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[916]) ).

thf(1057,plain,
    ! [SV125: $i,SV50: $i] :
      ( ( ( in @ SV50 @ SV125 )
        = $false )
      | ( ( subset @ SV50 @ ( union @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[917]) ).

thf(1058,plain,
    ! [SV151: $i,SV126: $i,SV52: $i] :
      ( ( ( ( ( singleton @ SV52 )
           != ( unordered_pair @ SV126 @ SV151 ) ) )
        = $true )
      | ( ( SV126 = SV151 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[918]) ).

thf(1059,plain,
    ! [SV127: $i,SV53: $i] :
      ( ( ( in @ SV53 @ SV127 )
        = $false )
      | ( ( ~ ( in @ SV127 @ SV53 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[919]) ).

thf(1060,plain,
    ! [SV152: $i,SV60: $i] :
      ( ( ( empty @ ( set_union2 @ SV60 @ SV152 ) )
        = $false )
      | ( ( empty @ SV60 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[921]) ).

thf(1061,plain,
    ! [SV62: $i,SV153: $i] :
      ( ( ( empty @ ( set_union2 @ SV153 @ SV62 ) )
        = $false )
      | ( ( empty @ SV62 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[923]) ).

thf(1062,plain,
    ! [SV133: $i,SV63: $i] :
      ( ( ( empty @ SV63 )
        = $true )
      | ( ( empty @ SV133 )
        = $true )
      | ( ( ~ ( empty @ ( cartesian_product2 @ SV63 @ SV133 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[924]) ).

thf(1063,plain,
    ! [SV134: $i,SV67: $i] :
      ( ( ( disjoint @ SV67 @ SV134 )
        = $false )
      | ( ( disjoint @ SV134 @ SV67 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[925]) ).

thf(1064,plain,
    ! [SV135: $i,SV68: $i] :
      ( ( ( in @ SV68 @ SV135 )
        = $false )
      | ( ( element @ SV68 @ SV135 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[926]) ).

thf(1065,plain,
    ! [SV136: $i,SV69: $i] :
      ( ( ( element @ SV69 @ SV136 )
        = $false )
      | ( ( ( empty @ SV136 )
          | ( in @ SV69 @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[927]) ).

thf(1066,plain,
    ! [SV70: $i,SV154: $i,SV137: $i] :
      ( ( ( ~ ( element @ SV137 @ ( powerset @ SV154 ) )
          | ~ ( in @ SV70 @ SV137 ) )
        = $true )
      | ( ( element @ SV70 @ SV154 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[928]) ).

thf(1067,plain,
    ! [SV71: $i,SV155: $i,SV138: $i] :
      ( ( ( ~ ( element @ SV138 @ ( powerset @ SV155 ) )
          | ~ ( in @ SV71 @ SV138 ) )
        = $true )
      | ( ( ~ ( empty @ SV155 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[929]) ).

thf(1068,plain,
    ! [SV72: $i,SV139: $i] :
      ( ( ( empty @ SV139 )
        = $false )
      | ( ( ~ ( in @ SV72 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[930]) ).

thf(1069,plain,
    ! [SV140: $i,SV73: $i] :
      ( ( ( SV73 = SV140 )
        = $true )
      | ( ( ~ ( empty @ SV73 ) )
        = $true )
      | ( ( ~ ( empty @ SV140 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[931]) ).

thf(1070,plain,
    ! [SV162: $i] :
      ( ( ! [SY543: $i] :
            ( ~ ( in @ SV162 @ SY543 )
            | ( subset @ ( singleton @ SV162 ) @ SY543 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[932]) ).

thf(1071,plain,
    ! [SV163: $i] :
      ( ( ! [SY544: $i] :
            ( ~ ( subset @ ( singleton @ SV163 ) @ SY544 )
            | ( in @ SV163 @ SY544 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[933]) ).

thf(1072,plain,
    ! [SV164: $i] :
      ( ( ! [SY545: $i] :
            ( ~ ( subset @ SV164 @ SY545 )
            | ~ ( subset @ SY545 @ SV164 )
            | ( SV164 = SY545 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[934]) ).

thf(1073,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[935]) ).

thf(1074,plain,
    ! [SV165: $i] :
      ( ( ! [SY546: $i] :
            ( ( SV165 = SY546 )
            | ~ ( subset @ SV165 @ SY546 )
            | ( proper_subset @ SV165 @ SY546 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[936]) ).

thf(1075,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[937]) ).

thf(1076,plain,
    ! [SV166: $i] :
      ( ( ! [SY547: $i] :
            ( ( disjoint @ SV166 @ SY547 )
            | ( in @ ( sK30_C @ SY547 @ SV166 ) @ ( set_intersection2 @ SV166 @ SY547 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[938]) ).

thf(1077,plain,
    ! [SV167: $i] :
      ( ( ! [SY548: $i] :
            ( ! [SY549: $i] :
                ~ ( in @ SY549 @ ( set_intersection2 @ SV167 @ SY548 ) )
            | ~ ( disjoint @ SV167 @ SY548 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[939]) ).

thf(1078,plain,
    ! [SV74: $i,SV141: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV74 )
          | ~ ~ ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV141 ) )
        = $false )
      | ( ( element @ SV74 @ ( powerset @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[940]) ).

thf(1079,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ~ ! [SY526: $i,SY527: $i] :
              ( ~ ( in @ SV75 @ SY526 )
              | ~ ( in @ SV142 @ SY527 )
              | ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY526 @ SY527 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[941]) ).

thf(1080,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ~ ~ ( ~ ! [SY528: $i] :
                    ( ! [SY529: $i] :
                        ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY528 @ SY529 ) )
                    | ( in @ SV75 @ SY528 ) )
              | ~ ! [SY530: $i,SY531: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY530 @ SY531 ) )
                    | ( in @ SV142 @ SY531 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[941]) ).

thf(1081,plain,
    ! [SV76: $i] :
      ( ( ! [SY405: $i] :
            ( ~ ( subset @ SV76 @ SY405 )
            | ! [SY406: $i] : ( subset @ ( cartesian_product2 @ SV76 @ SY406 ) @ ( cartesian_product2 @ SY405 @ SY406 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[942]) ).

thf(1082,plain,
    ! [SV76: $i] :
      ( ( ! [SY407: $i] :
            ( ~ ( subset @ SV76 @ SY407 )
            | ! [SY408: $i] : ( subset @ ( cartesian_product2 @ SY408 @ SV76 ) @ ( cartesian_product2 @ SY408 @ SY407 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[943]) ).

thf(1083,plain,
    ! [SV168: $i] :
      ( ( ! [SY550: $i] :
            ( ( ( set_difference @ SV168 @ SY550 )
             != SV168 )
            | ( disjoint @ SV168 @ SY550 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[948]) ).

thf(1084,plain,
    ! [SV169: $i] :
      ( ( ! [SY551: $i] :
            ( ~ ( disjoint @ SV169 @ SY551 )
            | ( ( set_difference @ SV169 @ SY551 )
              = SV169 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[949]) ).

thf(1085,plain,
    ! [SV77: $i] :
      ( ( ! [SY409: $i,SY410: $i] :
            ( ~ ( relation @ SY410 )
            | ~ ( in @ ( ordered_pair @ SV77 @ SY409 ) @ SY410 )
            | ( in @ SV77 @ ( relation_dom @ SY410 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[950]) ).

thf(1086,plain,
    ! [SV77: $i] :
      ( ( ! [SY411: $i,SY412: $i] :
            ( ~ ( relation @ SY412 )
            | ~ ( in @ ( ordered_pair @ SV77 @ SY411 ) @ SY412 )
            | ( in @ SY411 @ ( relation_rng @ SY412 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[951]) ).

thf(1087,plain,
    ! [SV170: $i] :
      ( ( ~ ( empty @ SV170 )
        | ( empty @ ( relation_rng @ SV170 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[952]) ).

thf(1088,plain,
    ! [SV171: $i] :
      ( ( ~ ( empty @ SV171 )
        | ( relation @ ( relation_rng @ SV171 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[953]) ).

thf(1089,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
              | ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) )
          | ~ ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
              | ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) ) )
        = $false )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[954]) ).

thf(1090,plain,
    ! [SV79: $i] :
      ( ( ! [SY414: $i,SY415: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                          | ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SV79 ) )
                      | ~ ( ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                          | ~ ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY414 ) ) )
                | ~ ( ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY415 )
                    | ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SV79 )
                    | ( in @ ( sK26_D @ SY415 @ SY414 @ SV79 ) @ SY414 ) ) )
            | ( SY415
              = ( set_union2 @ SV79 @ SY414 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[955]) ).

thf(1091,plain,
    ! [SV79: $i] :
      ( ( ! [SY416: $i,SY417: $i] :
            ( ( SY417
             != ( set_union2 @ SV79 @ SY416 ) )
            | ~ ( ~ ! [SY418: $i] :
                      ( ~ ( in @ SY418 @ SY417 )
                      | ( in @ SY418 @ SV79 )
                      | ( in @ SY418 @ SY416 ) )
                | ~ ~ ( ~ ! [SY419: $i] :
                            ( ~ ( in @ SY419 @ SV79 )
                            | ( in @ SY419 @ SY417 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY416 )
                            | ( in @ SX3 @ SY417 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[956]) ).

thf(1092,plain,
    ! [SV172: $i] :
      ( ( ! [SY552: $i] :
            ( ( disjoint @ SV172 @ SY552 )
            | ~ ( ~ ( in @ ( sK31_C @ SY552 @ SV172 ) @ SV172 )
                | ~ ( in @ ( sK31_C @ SY552 @ SV172 ) @ SY552 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[957]) ).

thf(1093,plain,
    ! [SV173: $i] :
      ( ( ! [SY553: $i] :
            ( ! [SY554: $i] :
                ( ~ ( in @ SY554 @ SV173 )
                | ~ ( in @ SY554 @ SY553 ) )
            | ~ ( disjoint @ SV173 @ SY553 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[958]) ).

thf(1094,plain,
    ! [SV80: $i] :
      ( ( ! [SY421: $i,SY422: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SV80 )
                    | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY421 )
                    | ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) )
                | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SV80 )
                          | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) )
                      | ~ ( ~ ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY421 )
                          | ( in @ ( sK15_D @ SY422 @ SY421 @ SV80 ) @ SY422 ) ) ) )
            | ( SY422
              = ( set_difference @ SV80 @ SY421 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[959]) ).

thf(1095,plain,
    ! [SV80: $i] :
      ( ( ! [SY423: $i,SY424: $i] :
            ( ( SY424
             != ( set_difference @ SV80 @ SY423 ) )
            | ~ ( ~ ! [SY425: $i] :
                      ( ~ ( in @ SY425 @ SV80 )
                      | ( in @ SY425 @ SY423 )
                      | ( in @ SY425 @ SY424 ) )
                | ~ ~ ( ~ ! [SY426: $i] :
                            ( ~ ( in @ SY426 @ SY424 )
                            | ( in @ SY426 @ SV80 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY424 )
                            | ~ ( in @ SX3 @ SY423 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[960]) ).

thf(1096,plain,
    ! [SV174: $i] :
      ( ( ! [SY555: $i] :
            ( ( ( set_difference @ SV174 @ SY555 )
             != empty_set )
            | ( subset @ SV174 @ SY555 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[961]) ).

thf(1097,plain,
    ! [SV175: $i] :
      ( ( ! [SY556: $i] :
            ( ~ ( subset @ SV175 @ SY556 )
            | ( ( set_difference @ SV175 @ SY556 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[962]) ).

thf(1098,plain,
    ( ( empty @ sK34_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[963]) ).

thf(1099,plain,
    ! [SV176: $i] :
      ( ( ! [SY557: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SY557 @ SV176 ) @ SV176 )
                | ~ ~ ( in @ ( sK20_C @ SY557 @ SV176 ) @ SY557 ) )
            | ( subset @ SV176 @ SY557 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[965]) ).

thf(1100,plain,
    ! [SV177: $i] :
      ( ( ! [SY558: $i] :
            ( ~ ( subset @ SV177 @ SY558 )
            | ! [SY559: $i] :
                ( ~ ( in @ SY559 @ SV177 )
                | ( in @ SY559 @ SY558 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[966]) ).

thf(1101,plain,
    ! [SV81: $i] :
      ( ( ! [SY428: $i,SY429: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SV81 )
                    | ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY428 )
                    | ~ ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) )
                | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SV81 )
                          | ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) )
                      | ~ ( ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY428 )
                          | ( in @ ( sK19_D @ SY429 @ SY428 @ SV81 ) @ SY429 ) ) ) )
            | ( SY429
              = ( set_intersection2 @ SV81 @ SY428 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[967]) ).

thf(1102,plain,
    ! [SV81: $i] :
      ( ( ! [SY430: $i,SY431: $i] :
            ( ( SY431
             != ( set_intersection2 @ SV81 @ SY430 ) )
            | ~ ( ~ ! [SY432: $i] :
                      ( ~ ( in @ SY432 @ SV81 )
                      | ~ ( in @ SY432 @ SY430 )
                      | ( in @ SY432 @ SY431 ) )
                | ~ ~ ( ~ ! [SY433: $i] :
                            ( ~ ( in @ SY433 @ SY431 )
                            | ( in @ SY433 @ SV81 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY431 )
                            | ( in @ SX3 @ SY430 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[968]) ).

thf(1103,plain,
    ! [SV178: $i] :
      ( ( ! [SY560: $i] :
            ( ( ( set_difference @ SV178 @ SY560 )
             != empty_set )
            | ( subset @ SV178 @ SY560 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[969]) ).

thf(1104,plain,
    ! [SV179: $i] :
      ( ( ! [SY561: $i] :
            ( ~ ( subset @ SV179 @ SY561 )
            | ( ( set_difference @ SV179 @ SY561 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[970]) ).

thf(1105,plain,
    ! [SV82: $i] :
      ( ( ! [SY435: $i] :
            ( ~ ( subset @ SY435 @ ( sK32_B @ SV82 ) )
            | ( are_equipotent @ SY435 @ ( sK32_B @ SV82 ) )
            | ( in @ SY435 @ ( sK32_B @ SV82 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[971]) ).

thf(1106,plain,
    ! [SV82: $i] :
      ( ( ~ ( ~ ! [SY436: $i] :
                  ( ~ ( in @ SY436 @ ( sK32_B @ SV82 ) )
                  | ( in @ ( powerset @ SY436 ) @ ( sK32_B @ SV82 ) ) )
            | ~ ~ ( ~ ! [SY437: $i,SY438: $i] :
                        ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
                        | ~ ( subset @ SY438 @ SY437 )
                        | ( in @ SY438 @ ( sK32_B @ SV82 ) ) )
                  | ~ ( in @ SV82 @ ( sK32_B @ SV82 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[972]) ).

thf(1107,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ~ ! [SY532: $i,SY533: $i] :
              ( ~ ( in @ SV83 @ SY532 )
              | ~ ( in @ SV144 @ SY533 )
              | ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY532 @ SY533 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[973]) ).

thf(1108,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ~ ~ ( ~ ! [SY534: $i] :
                    ( ! [SY535: $i] :
                        ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY534 @ SY535 ) )
                    | ( in @ SV83 @ SY534 ) )
              | ~ ! [SY536: $i,SY537: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY536 @ SY537 ) )
                    | ( in @ SV144 @ SY537 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[973]) ).

thf(1109,plain,
    ! [SV180: $i] :
      ( ( ! [SY562: $i] :
            ( ~ ( ~ ( ( ( sK29_C @ SY562 @ SV180 )
                     != SV180 )
                    | ~ ( in @ ( sK29_C @ SY562 @ SV180 ) @ SY562 ) )
                | ~ ( ( ( sK29_C @ SY562 @ SV180 )
                      = SV180 )
                    | ( in @ ( sK29_C @ SY562 @ SV180 ) @ SY562 ) ) )
            | ( SY562
              = ( singleton @ SV180 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[974]) ).

thf(1110,plain,
    ! [SV181: $i] :
      ( ( ! [SY563: $i] :
            ( ( SY563
             != ( singleton @ SV181 ) )
            | ~ ( ~ ! [SY564: $i] :
                      ( ( SY564 != SV181 )
                      | ( in @ SY564 @ SY563 ) )
                | ~ ! [SY565: $i] :
                      ( ~ ( in @ SY565 @ SY563 )
                      | ( SY565 = SV181 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[975]) ).

thf(1111,plain,
    ! [SV182: $i] :
      ( ( ! [SY566: $i] :
            ( ~ ( ~ ( ! [SY567: $i] :
                        ( ~ ( in @ ( sK17_C @ SY566 @ SV182 ) @ SY567 )
                        | ~ ( in @ SY567 @ SV182 ) )
                    | ~ ( in @ ( sK17_C @ SY566 @ SV182 ) @ SY566 ) )
                | ~ ( ~ ( ~ ( in @ ( sK17_C @ SY566 @ SV182 ) @ ( sK18_SY312 @ SY566 @ SV182 ) )
                        | ~ ( in @ ( sK18_SY312 @ SY566 @ SV182 ) @ SV182 ) )
                    | ( in @ ( sK17_C @ SY566 @ SV182 ) @ SY566 ) ) )
            | ( SY566
              = ( union @ SV182 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[976]) ).

thf(1112,plain,
    ! [SV183: $i] :
      ( ( ! [SY568: $i] :
            ( ( SY568
             != ( union @ SV183 ) )
            | ~ ( ~ ! [SY569: $i] :
                      ( ! [SY570: $i] :
                          ( ~ ( in @ SY569 @ SY570 )
                          | ~ ( in @ SY570 @ SV183 ) )
                      | ( in @ SY569 @ SY568 ) )
                | ~ ! [SY571: $i] :
                      ( ~ ( in @ SY571 @ SY568 )
                      | ~ ( ~ ( in @ SY571 @ ( sK16_D @ SY571 @ SY568 @ SV183 ) )
                          | ~ ( in @ ( sK16_D @ SY571 @ SY568 @ SV183 ) @ SV183 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[977]) ).

thf(1113,plain,
    ! [SV184: $i] :
      ( ( ~ ( relation @ SV184 )
        | ( ( relation_dom @ SV184 )
         != empty_set )
        | ( SV184 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[978]) ).

thf(1114,plain,
    ! [SV185: $i] :
      ( ( ~ ( relation @ SV185 )
        | ( ( relation_rng @ SV185 )
         != empty_set )
        | ( SV185 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[979]) ).

thf(1115,plain,
    ! [SV186: $i] :
      ( ( ! [SY572: $i] :
            ( ~ ( subset @ SV186 @ ( singleton @ SY572 ) )
            | ( SV186 = empty_set )
            | ( SV186
              = ( singleton @ SY572 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[980]) ).

thf(1116,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[981]) ).

thf(1117,plain,
    ! [SV84: $i] :
      ( ( ! [SY446: $i] :
            ( ~ ( subset @ SY446 @ ( sK2_B @ SV84 ) )
            | ( are_equipotent @ SY446 @ ( sK2_B @ SV84 ) )
            | ( in @ SY446 @ ( sK2_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[982]) ).

thf(1118,plain,
    ! [SV84: $i] :
      ( ( ~ ( ~ ! [SY447: $i] :
                  ( ~ ( ~ ! [SY448: $i] :
                            ( ~ ( subset @ SY448 @ SY447 )
                            | ( in @ SY448 @ ( sK3_SY300 @ SY447 @ SV84 ) ) )
                      | ~ ( in @ ( sK3_SY300 @ SY447 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
                  | ~ ( in @ SY447 @ ( sK2_B @ SV84 ) ) )
            | ~ ~ ( ~ ! [SY449: $i,SY450: $i] :
                        ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
                        | ~ ( subset @ SY450 @ SY449 )
                        | ( in @ SY450 @ ( sK2_B @ SV84 ) ) )
                  | ~ ( in @ SV84 @ ( sK2_B @ SV84 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[983]) ).

thf(1119,plain,
    ! [SV187: $i] :
      ( ( ~ ( relation @ SV187 )
        | ( ( relation_rng @ SV187 )
          = ( relation_dom @ ( relation_inverse @ SV187 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[984]) ).

thf(1120,plain,
    ! [SV188: $i] :
      ( ( ~ ( relation @ SV188 )
        | ( ( relation_dom @ SV188 )
          = ( relation_rng @ ( relation_inverse @ SV188 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[985]) ).

thf(1121,plain,
    ! [SV85: $i] :
      ( ( ! [SY451: $i,SY452: $i] :
            ( ~ ( ~ ( ! [SY453: $i,SY454: $i] :
                        ( ~ ( in @ SY453 @ SV85 )
                        | ~ ( in @ SY454 @ SY451 )
                        | ( ( sK23_D @ SY452 @ SY451 @ SV85 )
                         != ( ordered_pair @ SY453 @ SY454 ) ) )
                    | ~ ( in @ ( sK23_D @ SY452 @ SY451 @ SV85 ) @ SY452 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY452 @ SY451 @ SV85 ) @ SV85 )
                              | ~ ( in @ ( sK25_SY318 @ SY452 @ SY451 @ SV85 ) @ SY451 ) )
                        | ( ( sK23_D @ SY452 @ SY451 @ SV85 )
                         != ( ordered_pair @ ( sK24_SY316 @ SY452 @ SY451 @ SV85 ) @ ( sK25_SY318 @ SY452 @ SY451 @ SV85 ) ) ) )
                    | ( in @ ( sK23_D @ SY452 @ SY451 @ SV85 ) @ SY452 ) ) )
            | ( SY452
              = ( cartesian_product2 @ SV85 @ SY451 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[986]) ).

thf(1122,plain,
    ! [SV85: $i] :
      ( ( ! [SY455: $i,SY456: $i] :
            ( ( SY456
             != ( cartesian_product2 @ SV85 @ SY455 ) )
            | ~ ( ~ ! [SY457: $i] :
                      ( ! [SY458: $i,SY459: $i] :
                          ( ~ ( in @ SY458 @ SV85 )
                          | ~ ( in @ SY459 @ SY455 )
                          | ( SY457
                           != ( ordered_pair @ SY458 @ SY459 ) ) )
                      | ( in @ SY457 @ SY456 ) )
                | ~ ! [SY460: $i] :
                      ( ~ ( in @ SY460 @ SY456 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY460 @ SY456 @ SY455 @ SV85 ) @ SV85 )
                                | ~ ( in @ ( sK22_SY313 @ SY460 @ SY456 @ SY455 @ SV85 ) @ SY455 ) )
                          | ( SY460
                           != ( ordered_pair @ ( sK21_E @ SY460 @ SY456 @ SY455 @ SV85 ) @ ( sK22_SY313 @ SY460 @ SY456 @ SY455 @ SV85 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[987]) ).

thf(1123,plain,
    ! [SV86: $i] :
      ( ( ( ~ ! [SY461: $i] :
                ( ~ ( ~ ( ! [SY462: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ SY462 ) @ SV86 )
                        | ~ ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ ( sK41_SY326 @ SY461 @ SV86 ) ) @ SV86 )
                        | ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) ) )
                | ( SY461
                  = ( relation_dom @ SV86 ) ) )
          | ~ ! [SY463: $i] :
                ( ( SY463
                 != ( relation_dom @ SV86 ) )
                | ~ ( ~ ! [SY464: $i] :
                          ( ! [SY465: $i] :
                              ~ ( in @ ( ordered_pair @ SY464 @ SY465 ) @ SV86 )
                          | ( in @ SY464 @ SY463 ) )
                    | ~ ! [SY466: $i] :
                          ( ~ ( in @ SY466 @ SY463 )
                          | ( in @ ( ordered_pair @ SY466 @ ( sK39_D @ SY466 @ SY463 @ SV86 ) ) @ SV86 ) ) ) ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[988]) ).

thf(1124,plain,
    ! [SV87: $i] :
      ( ( element @ ( sK6_B @ SV87 ) @ ( powerset @ SV87 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[989]) ).

thf(1125,plain,
    ! [SV87: $i] :
      ( ( empty @ ( sK6_B @ SV87 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[990]) ).

thf(1126,plain,
    ! [SV189: $i] :
      ( ( ! [SY573: $i] :
            ( ~ ( in @ SV189 @ SY573 )
            | ( subset @ ( singleton @ SV189 ) @ SY573 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[991]) ).

thf(1127,plain,
    ! [SV190: $i] :
      ( ( ! [SY574: $i] :
            ( ~ ( subset @ ( singleton @ SV190 ) @ SY574 )
            | ( in @ SV190 @ SY574 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[992]) ).

thf(1128,plain,
    ! [SV191: $i] :
      ( ( ! [SY575: $i] :
            ( ( ( set_intersection2 @ SV191 @ SY575 )
             != empty_set )
            | ( disjoint @ SV191 @ SY575 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[993]) ).

thf(1129,plain,
    ! [SV192: $i] :
      ( ( ! [SY576: $i] :
            ( ~ ( disjoint @ SV192 @ SY576 )
            | ( ( set_intersection2 @ SV192 @ SY576 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[994]) ).

thf(1130,plain,
    ! [SV88: $i] :
      ( ( ( ~ ! [SY467: $i] :
                ( ~ ( ~ ( ! [SY468: $i] :
                            ~ ( in @ ( ordered_pair @ SY468 @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                        | ~ ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY467 @ SV88 ) @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                        | ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) ) )
                | ( SY467
                  = ( relation_rng @ SV88 ) ) )
          | ~ ! [SY469: $i] :
                ( ( SY469
                 != ( relation_rng @ SV88 ) )
                | ~ ( ~ ! [SY470: $i] :
                          ( ! [SY471: $i] :
                              ~ ( in @ ( ordered_pair @ SY471 @ SY470 ) @ SV88 )
                          | ( in @ SY470 @ SY469 ) )
                    | ~ ! [SY472: $i] :
                          ( ~ ( in @ SY472 @ SY469 )
                          | ( in @ ( ordered_pair @ ( sK36_D @ SY472 @ SY469 @ SV88 ) @ SY472 ) @ SV88 ) ) ) ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[995]) ).

thf(1131,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[998]) ).

thf(1132,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[999]) ).

thf(1133,plain,
    ! [SV89: $i] :
      ( ( ! [SY473: $i,SY474: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                          | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                           != SV89 ) )
                      | ~ ( ~ ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                          | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                           != SY473 ) ) )
                | ~ ( ( in @ ( sK27_D @ SY474 @ SY473 @ SV89 ) @ SY474 )
                    | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                      = SV89 )
                    | ( ( sK27_D @ SY474 @ SY473 @ SV89 )
                      = SY473 ) ) )
            | ( SY474
              = ( unordered_pair @ SV89 @ SY473 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1000]) ).

thf(1134,plain,
    ! [SV89: $i] :
      ( ( ! [SY475: $i,SY476: $i] :
            ( ( SY476
             != ( unordered_pair @ SV89 @ SY475 ) )
            | ~ ( ~ ! [SY477: $i] :
                      ( ~ ( in @ SY477 @ SY476 )
                      | ( SY477 = SV89 )
                      | ( SY477 = SY475 ) )
                | ~ ~ ( ~ ! [SY478: $i] :
                            ( ( SY478 != SV89 )
                            | ( in @ SY478 @ SY476 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY475 )
                            | ( in @ SX3 @ SY476 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1001]) ).

thf(1135,plain,
    ! [SV193: $i] :
      ( ( ! [SY577: $i] :
            ( ( ( set_difference @ SV193 @ ( singleton @ SY577 ) )
             != SV193 )
            | ~ ( in @ SY577 @ SV193 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1002]) ).

thf(1136,plain,
    ! [SV194: $i] :
      ( ( ! [SY578: $i] :
            ( ( in @ SY578 @ SV194 )
            | ( ( set_difference @ SV194 @ ( singleton @ SY578 ) )
              = SV194 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1003]) ).

thf(1137,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) )
      | ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1004]) ).

thf(1138,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1005]) ).

thf(1139,plain,
    ! [SV90: $i,SV195: $i] :
      ( ( ( ~ ( relation @ SV195 )
          | ~ ( ~ ! [SY579: $i] :
                    ( ~ ( relation @ SY579 )
                    | ~ ( ~ ( ! [SY580: $i] :
                                ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ SY580 ) @ SV90 )
                                | ~ ( in @ ( ordered_pair @ SY580 @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                            | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) )
                        | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) ) @ SV90 )
                                | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                            | ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) ) )
                    | ( SY579
                      = ( relation_composition @ SV90 @ SV195 ) ) )
              | ~ ! [SY581: $i] :
                    ( ~ ( relation @ SY581 )
                    | ( SY581
                     != ( relation_composition @ SV90 @ SV195 ) )
                    | ~ ( ~ ! [SY582: $i,SY583: $i] :
                              ( ! [SY584: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY582 @ SY584 ) @ SV90 )
                                  | ~ ( in @ ( ordered_pair @ SY584 @ SY583 ) @ SV195 ) )
                              | ( in @ ( ordered_pair @ SY582 @ SY583 ) @ SY581 ) )
                        | ~ ! [SY585: $i,SY586: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY585 @ SY586 ) @ SY581 )
                              | ~ ( ~ ( in @ ( ordered_pair @ SY585 @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) ) @ SV90 )
                                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) @ SY586 ) @ SV195 ) ) ) ) ) ) )
        = $true )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1006]) ).

thf(1140,plain,
    ! [SV196: $i] :
      ( ( ~ ( empty @ SV196 )
        | ( empty @ ( relation_dom @ SV196 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1007]) ).

thf(1141,plain,
    ! [SV197: $i] :
      ( ( ~ ( empty @ SV197 )
        | ( relation @ ( relation_dom @ SV197 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1008]) ).

thf(1142,plain,
    ! [SV198: $i] :
      ( ( ! [SY587: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SY587 @ SV198 ) @ SY587 )
                    | ~ ( subset @ ( sK28_C @ SY587 @ SV198 ) @ SV198 ) )
                | ~ ( ( in @ ( sK28_C @ SY587 @ SV198 ) @ SY587 )
                    | ( subset @ ( sK28_C @ SY587 @ SV198 ) @ SV198 ) ) )
            | ( SY587
              = ( powerset @ SV198 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1009]) ).

thf(1143,plain,
    ! [SV199: $i] :
      ( ( ! [SY588: $i] :
            ( ( SY588
             != ( powerset @ SV199 ) )
            | ~ ( ~ ! [SY589: $i] :
                      ( ~ ( in @ SY589 @ SY588 )
                      | ( subset @ SY589 @ SV199 ) )
                | ~ ! [SY590: $i] :
                      ( ~ ( subset @ SY590 @ SV199 )
                      | ( in @ SY590 @ SY588 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1010]) ).

thf(1144,plain,
    ! [SV91: $i] :
      ( ( ( ~ ! [SY489: $i] :
                ( ~ ( relation @ SY489 )
                | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                        | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                        | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) ) )
                | ( SY489
                  = ( relation_inverse @ SV91 ) ) )
          | ~ ! [SY490: $i] :
                ( ~ ( relation @ SY490 )
                | ( SY490
                 != ( relation_inverse @ SV91 ) )
                | ~ ( ~ ! [SY491: $i,SY492: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY491 @ SY492 ) @ SY490 )
                          | ( in @ ( ordered_pair @ SY492 @ SY491 ) @ SV91 ) )
                    | ~ ! [SY493: $i,SY494: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY494 @ SY493 ) @ SV91 )
                          | ( in @ ( ordered_pair @ SY493 @ SY494 ) @ SY490 ) ) ) ) )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1011]) ).

thf(1145,plain,
    ! [SV200: $i] :
      ( ( ! [SY591: $i] :
            ( ~ ( subset @ SV200 @ ( singleton @ SY591 ) )
            | ( SV200 = empty_set )
            | ( SV200
              = ( singleton @ SY591 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1012]) ).

thf(1146,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1013]) ).

thf(1147,plain,
    ! [SV201: $i] :
      ( ( ! [SY592: $i] :
            ( ~ ( element @ SV201 @ ( powerset @ SY592 ) )
            | ( subset @ SV201 @ SY592 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1014]) ).

thf(1148,plain,
    ! [SV202: $i] :
      ( ( ! [SY593: $i] :
            ( ~ ( subset @ SV202 @ SY593 )
            | ( element @ SV202 @ ( powerset @ SY593 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1015]) ).

thf(1149,plain,
    ! [SV92: $i] :
      ( ( ( ~ ( element @ ( sK8_B @ SV92 ) @ ( powerset @ SV92 ) ) )
        = $false )
      | ( ( empty @ SV92 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1016]) ).

thf(1150,plain,
    ! [SV92: $i] :
      ( ( ( ~ ~ ( empty @ ( sK8_B @ SV92 ) ) )
        = $false )
      | ( ( empty @ SV92 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1016]) ).

thf(1151,plain,
    ! [SV93: $i] :
      ( ( ! [SY495: $i,SY496: $i] :
            ( ~ ( in @ SV93 @ SY496 )
            | ~ ( in @ SY495 @ SY496 )
            | ( subset @ ( unordered_pair @ SV93 @ SY495 ) @ SY496 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1017]) ).

thf(1152,plain,
    ! [SV93: $i] :
      ( ( ~ ( ~ ! [SY497: $i,SY498: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV93 @ SY497 ) @ SY498 )
                  | ( in @ SV93 @ SY498 ) )
            | ~ ! [SY499: $i,SY500: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV93 @ SY499 ) @ SY500 )
                  | ( in @ SY499 @ SY500 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1018]) ).

thf(1153,plain,
    ! [SV94: $i] :
      ( ( ! [SY501: $i,SY502: $i] :
            ( ~ ( relation @ SY502 )
            | ~ ( in @ ( ordered_pair @ SV94 @ SY501 ) @ SY502 )
            | ( in @ SV94 @ ( relation_field @ SY502 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1019]) ).

thf(1154,plain,
    ! [SV94: $i] :
      ( ( ! [SY503: $i,SY504: $i] :
            ( ~ ( relation @ SY504 )
            | ~ ( in @ ( ordered_pair @ SV94 @ SY503 ) @ SY504 )
            | ( in @ SY503 @ ( relation_field @ SY504 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1020]) ).

thf(1155,plain,
    ! [SV203: $i] :
      ( ( ( in @ ( sK42_B @ SV203 ) @ SV203 )
        | ( SV203 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1021]) ).

thf(1156,plain,
    ! [SV204: $i] :
      ( ( ( SV204 != empty_set )
        | ! [SY594: $i] :
            ~ ( in @ SY594 @ SV204 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1022]) ).

thf(1157,plain,
    ( ( ( relation_rng @ sK1_A )
      = empty_set )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1024]) ).

thf(1158,plain,
    ! [SV145: $i,SV95: $i] :
      ( ( ~ ! [SY538: $i] :
              ( ! [SY539: $i] :
                  ( ( ordered_pair @ SV95 @ SV145 )
                 != ( ordered_pair @ SY538 @ SY539 ) )
              | ( SV95 = SY538 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1025]) ).

thf(1159,plain,
    ! [SV145: $i,SV95: $i] :
      ( ( ~ ! [SY540: $i,SY541: $i] :
              ( ( ( ordered_pair @ SV95 @ SV145 )
               != ( ordered_pair @ SY540 @ SY541 ) )
              | ( SV145 = SY541 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1025]) ).

thf(1160,plain,
    ! [SV96: $i] :
      ( ( ( ~ ! [SY510: $i] :
                ( ~ ( relation @ SY510 )
                | ~ ( subset @ SV96 @ SY510 )
                | ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SY510 ) ) )
          | ~ ! [SY511: $i] :
                ( ~ ( relation @ SY511 )
                | ~ ( subset @ SV96 @ SY511 )
                | ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SY511 ) ) ) )
        = $false )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1026]) ).

thf(1161,plain,
    ! [SV205: $i] :
      ( ( ~ ( ~ ! [SY595: $i,SY596: $i] :
                  ( ( sK48_B @ SV205 )
                 != ( ordered_pair @ SY595 @ SY596 ) )
            | ~ ( in @ ( sK48_B @ SV205 ) @ SV205 ) )
        | ( relation @ SV205 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1027]) ).

thf(1162,plain,
    ! [SV206: $i] :
      ( ( ~ ( relation @ SV206 )
        | ! [SY597: $i] :
            ( ( SY597
              = ( ordered_pair @ ( sK46_C @ SY597 @ SV206 ) @ ( sK47_SY329 @ SY597 @ SV206 ) ) )
            | ~ ( in @ SY597 @ SV206 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1028]) ).

thf(1163,plain,
    ! [SV5: $i,SV156: $i] :
      ( ( ( ~ ( relation @ SV156 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV5 @ SV156 ) ) @ ( relation_dom @ SV5 ) )
        = $true )
      | ( ( relation @ SV5 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1029]) ).

thf(1164,plain,
    ! [SV6: $i,SV157: $i] :
      ( ( ( ~ ( relation @ SV157 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV6 @ SV157 ) ) @ ( relation_rng @ SV157 ) )
        = $true )
      | ( ( relation @ SV6 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1030]) ).

thf(1165,plain,
    ! [SV7: $i,SV158: $i] :
      ( ( ( ~ ( relation @ SV158 ) )
        = $true )
      | ( ( ~ ( subset @ ( relation_rng @ SV7 ) @ ( relation_dom @ SV158 ) )
          | ( ( relation_dom @ ( relation_composition @ SV7 @ SV158 ) )
            = ( relation_dom @ SV7 ) ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1031]) ).

thf(1166,plain,
    ! [SV8: $i,SV159: $i] :
      ( ( ( ~ ( relation @ SV159 ) )
        = $true )
      | ( ( ~ ( subset @ ( relation_dom @ SV8 ) @ ( relation_rng @ SV159 ) )
          | ( ( relation_rng @ ( relation_composition @ SV159 @ SV8 ) )
            = ( relation_rng @ SV8 ) ) )
        = $true )
      | ( ( relation @ SV8 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1032]) ).

thf(1167,plain,
    ! [SV97: $i,SV13: $i] :
      ( ( ( relation @ SV13 )
        = $false )
      | ( ( ~ ( relation @ SV97 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV13 @ SV97 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1034]) ).

thf(1168,plain,
    ! [SV98: $i,SV14: $i] :
      ( ( ( relation @ SV14 )
        = $false )
      | ( ( ~ ( relation @ SV98 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV14 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1035]) ).

thf(1169,plain,
    ! [SV15: $i] :
      ( ( ( empty @ ( relation_dom @ SV15 ) )
        = $false )
      | ( ( empty @ SV15 )
        = $true )
      | ( ( relation @ SV15 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1036]) ).

thf(1170,plain,
    ! [SV16: $i] :
      ( ( ( empty @ ( relation_rng @ SV16 ) )
        = $false )
      | ( ( empty @ SV16 )
        = $true )
      | ( ( relation @ SV16 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1037]) ).

thf(1171,plain,
    ! [SV100: $i,SV24: $i] :
      ( ( ( in @ SV24 @ SV100 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV24 ) @ SV100 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1039]) ).

thf(1172,plain,
    ! [SV26: $i,SV102: $i,SV207: $i] :
      ( ( ( ~ ( in @ SV207 @ SV102 )
          | ( in @ SV207 @ SV26 ) )
        = $true )
      | ( ( element @ SV102 @ ( powerset @ SV26 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1040]) ).

thf(1173,plain,
    ! [SV103: $i,SV27: $i,SV208: $i] :
      ( ( ( ( in @ SV208 @ SV27 )
          | ( subset @ SV27 @ ( set_difference @ SV103 @ ( singleton @ SV208 ) ) ) )
        = $true )
      | ( ( subset @ SV27 @ SV103 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1041]) ).

thf(1174,plain,
    ! [SV160: $i,SV146: $i,SV105: $i,SV29: $i] :
      ( ( ( ~ ( subset @ SV29 @ SV105 )
          | ~ ( subset @ SV146 @ SV160 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV29 @ SV146 ) @ ( cartesian_product2 @ SV105 @ SV160 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1043]) ).

thf(1175,plain,
    ! [SV147: $i,SV108: $i,SV32: $i] :
      ( ( ( ~ ( subset @ SV32 @ SV108 ) )
        = $true )
      | ( ( ~ ( subset @ SV32 @ SV147 ) )
        = $true )
      | ( ( subset @ SV32 @ ( set_intersection2 @ SV108 @ SV147 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1045]) ).

thf(1176,plain,
    ! [SV148: $i,SV109: $i,SV33: $i] :
      ( ( ( ~ ( subset @ SV33 @ SV109 ) )
        = $true )
      | ( ( ~ ( subset @ SV109 @ SV148 ) )
        = $true )
      | ( ( subset @ SV33 @ SV148 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1046]) ).

thf(1177,plain,
    ! [SV110: $i,SV209: $i,SV34: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV34 @ SV209 ) @ ( set_intersection2 @ SV110 @ SV209 ) )
        = $true )
      | ( ( subset @ SV34 @ SV110 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1047]) ).

thf(1178,plain,
    ! [SV112: $i,SV210: $i,SV36: $i] :
      ( ( ( subset @ ( set_difference @ SV36 @ SV210 ) @ ( set_difference @ SV112 @ SV210 ) )
        = $true )
      | ( ( subset @ SV36 @ SV112 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1049]) ).

thf(1179,plain,
    ! [SV119: $i,SV43: $i] :
      ( ( ( subset @ SV43 @ SV119 )
        = $false )
      | ( ( proper_subset @ SV119 @ SV43 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1052]) ).

thf(1180,plain,
    ! [SV44: $i,SV149: $i,SV120: $i] :
      ( ( ( ~ ( disjoint @ SV120 @ SV149 ) )
        = $true )
      | ( ( ~ ( subset @ SV44 @ SV120 ) )
        = $true )
      | ( ( disjoint @ SV44 @ SV149 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1053]) ).

thf(1181,plain,
    ! [SV150: $i,SV123: $i,SV48: $i] :
      ( ( ( ~ ( subset @ SV48 @ SV123 ) )
        = $true )
      | ( ( ~ ( subset @ SV150 @ SV123 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV48 @ SV150 ) @ SV123 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1055]) ).

thf(1182,plain,
    ! [SV161: $i,SV124: $i,SV49: $i] :
      ( ( ( ( singleton @ SV49 )
          = ( unordered_pair @ SV124 @ SV161 ) )
        = $false )
      | ( ( SV49 = SV124 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1056]) ).

thf(1183,plain,
    ! [SV151: $i,SV126: $i,SV52: $i] :
      ( ( ( ( singleton @ SV52 )
          = ( unordered_pair @ SV126 @ SV151 ) )
        = $false )
      | ( ( SV126 = SV151 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1058]) ).

thf(1184,plain,
    ! [SV53: $i,SV127: $i] :
      ( ( ( in @ SV127 @ SV53 )
        = $false )
      | ( ( in @ SV53 @ SV127 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1059]) ).

thf(1185,plain,
    ! [SV133: $i,SV63: $i] :
      ( ( ( empty @ ( cartesian_product2 @ SV63 @ SV133 ) )
        = $false )
      | ( ( empty @ SV133 )
        = $true )
      | ( ( empty @ SV63 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1062]) ).

thf(1186,plain,
    ! [SV69: $i,SV136: $i] :
      ( ( ( empty @ SV136 )
        = $true )
      | ( ( in @ SV69 @ SV136 )
        = $true )
      | ( ( element @ SV69 @ SV136 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1065]) ).

thf(1187,plain,
    ! [SV70: $i,SV154: $i,SV137: $i] :
      ( ( ( ~ ( element @ SV137 @ ( powerset @ SV154 ) ) )
        = $true )
      | ( ( ~ ( in @ SV70 @ SV137 ) )
        = $true )
      | ( ( element @ SV70 @ SV154 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1066]) ).

thf(1188,plain,
    ! [SV71: $i,SV155: $i,SV138: $i] :
      ( ( ( ~ ( element @ SV138 @ ( powerset @ SV155 ) ) )
        = $true )
      | ( ( ~ ( in @ SV71 @ SV138 ) )
        = $true )
      | ( ( ~ ( empty @ SV155 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1067]) ).

thf(1189,plain,
    ! [SV139: $i,SV72: $i] :
      ( ( ( in @ SV72 @ SV139 )
        = $false )
      | ( ( empty @ SV139 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1068]) ).

thf(1190,plain,
    ! [SV140: $i,SV73: $i] :
      ( ( ( empty @ SV73 )
        = $false )
      | ( ( SV73 = SV140 )
        = $true )
      | ( ( ~ ( empty @ SV140 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1069]) ).

thf(1191,plain,
    ! [SV211: $i,SV162: $i] :
      ( ( ~ ( in @ SV162 @ SV211 )
        | ( subset @ ( singleton @ SV162 ) @ SV211 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1070]) ).

thf(1192,plain,
    ! [SV212: $i,SV163: $i] :
      ( ( ~ ( subset @ ( singleton @ SV163 ) @ SV212 )
        | ( in @ SV163 @ SV212 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1071]) ).

thf(1193,plain,
    ! [SV213: $i,SV164: $i] :
      ( ( ~ ( subset @ SV164 @ SV213 )
        | ~ ( subset @ SV213 @ SV164 )
        | ( SV164 = SV213 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1072]) ).

thf(1194,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1073]) ).

thf(1195,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1073]) ).

thf(1196,plain,
    ! [SV214: $i,SV165: $i] :
      ( ( ( SV165 = SV214 )
        | ~ ( subset @ SV165 @ SV214 )
        | ( proper_subset @ SV165 @ SV214 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1074]) ).

thf(1197,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1075]) ).

thf(1198,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1075]) ).

thf(1199,plain,
    ! [SV215: $i,SV166: $i] :
      ( ( ( disjoint @ SV166 @ SV215 )
        | ( in @ ( sK30_C @ SV215 @ SV166 ) @ ( set_intersection2 @ SV166 @ SV215 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1076]) ).

thf(1200,plain,
    ! [SV216: $i,SV167: $i] :
      ( ( ! [SY598: $i] :
            ~ ( in @ SY598 @ ( set_intersection2 @ SV167 @ SV216 ) )
        | ~ ( disjoint @ SV167 @ SV216 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1077]) ).

thf(1201,plain,
    ! [SV74: $i,SV141: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV74 ) )
        = $false )
      | ( ( element @ SV74 @ ( powerset @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1078]) ).

thf(1202,plain,
    ! [SV74: $i,SV141: $i] :
      ( ( ( ~ ~ ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV141 ) )
        = $false )
      | ( ( element @ SV74 @ ( powerset @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1078]) ).

thf(1203,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ! [SY526: $i,SY527: $i] :
            ( ~ ( in @ SV75 @ SY526 )
            | ~ ( in @ SV142 @ SY527 )
            | ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY526 @ SY527 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1079]) ).

thf(1204,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ~ ( ~ ! [SY528: $i] :
                  ( ! [SY529: $i] :
                      ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY528 @ SY529 ) )
                  | ( in @ SV75 @ SY528 ) )
            | ~ ! [SY530: $i,SY531: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY530 @ SY531 ) )
                  | ( in @ SV142 @ SY531 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1080]) ).

thf(1205,plain,
    ! [SV217: $i,SV76: $i] :
      ( ( ~ ( subset @ SV76 @ SV217 )
        | ! [SY599: $i] : ( subset @ ( cartesian_product2 @ SV76 @ SY599 ) @ ( cartesian_product2 @ SV217 @ SY599 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1081]) ).

thf(1206,plain,
    ! [SV218: $i,SV76: $i] :
      ( ( ~ ( subset @ SV76 @ SV218 )
        | ! [SY600: $i] : ( subset @ ( cartesian_product2 @ SY600 @ SV76 ) @ ( cartesian_product2 @ SY600 @ SV218 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1082]) ).

thf(1207,plain,
    ! [SV219: $i,SV168: $i] :
      ( ( ( ( set_difference @ SV168 @ SV219 )
         != SV168 )
        | ( disjoint @ SV168 @ SV219 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1083]) ).

thf(1208,plain,
    ! [SV220: $i,SV169: $i] :
      ( ( ~ ( disjoint @ SV169 @ SV220 )
        | ( ( set_difference @ SV169 @ SV220 )
          = SV169 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1084]) ).

thf(1209,plain,
    ! [SV221: $i,SV77: $i] :
      ( ( ! [SY601: $i] :
            ( ~ ( relation @ SY601 )
            | ~ ( in @ ( ordered_pair @ SV77 @ SV221 ) @ SY601 )
            | ( in @ SV77 @ ( relation_dom @ SY601 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1085]) ).

thf(1210,plain,
    ! [SV222: $i,SV77: $i] :
      ( ( ! [SY602: $i] :
            ( ~ ( relation @ SY602 )
            | ~ ( in @ ( ordered_pair @ SV77 @ SV222 ) @ SY602 )
            | ( in @ SV222 @ ( relation_rng @ SY602 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1086]) ).

thf(1211,plain,
    ! [SV170: $i] :
      ( ( ( ~ ( empty @ SV170 ) )
        = $true )
      | ( ( empty @ ( relation_rng @ SV170 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1087]) ).

thf(1212,plain,
    ! [SV171: $i] :
      ( ( ( ~ ( empty @ SV171 ) )
        = $true )
      | ( ( relation @ ( relation_rng @ SV171 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1088]) ).

thf(1213,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
              | ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) ) )
        = $false )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1089]) ).

thf(1214,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( ~ ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
              | ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) ) )
        = $false )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1089]) ).

thf(1215,plain,
    ! [SV79: $i,SV223: $i] :
      ( ( ! [SY603: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY603 @ SV223 @ SV79 ) @ SY603 )
                          | ~ ( in @ ( sK26_D @ SY603 @ SV223 @ SV79 ) @ SV79 ) )
                      | ~ ( ~ ( in @ ( sK26_D @ SY603 @ SV223 @ SV79 ) @ SY603 )
                          | ~ ( in @ ( sK26_D @ SY603 @ SV223 @ SV79 ) @ SV223 ) ) )
                | ~ ( ( in @ ( sK26_D @ SY603 @ SV223 @ SV79 ) @ SY603 )
                    | ( in @ ( sK26_D @ SY603 @ SV223 @ SV79 ) @ SV79 )
                    | ( in @ ( sK26_D @ SY603 @ SV223 @ SV79 ) @ SV223 ) ) )
            | ( SY603
              = ( set_union2 @ SV79 @ SV223 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1090]) ).

thf(1216,plain,
    ! [SV224: $i,SV79: $i] :
      ( ( ! [SY604: $i] :
            ( ( SY604
             != ( set_union2 @ SV79 @ SV224 ) )
            | ~ ( ~ ! [SY605: $i] :
                      ( ~ ( in @ SY605 @ SY604 )
                      | ( in @ SY605 @ SV79 )
                      | ( in @ SY605 @ SV224 ) )
                | ~ ~ ( ~ ! [SY419: $i] :
                            ( ~ ( in @ SY419 @ SV79 )
                            | ( in @ SY419 @ SY604 ) )
                      | ~ ! [SY607: $i] :
                            ( ~ ( in @ SY607 @ SV224 )
                            | ( in @ SY607 @ SY604 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1091]) ).

thf(1217,plain,
    ! [SV225: $i,SV172: $i] :
      ( ( ( disjoint @ SV172 @ SV225 )
        | ~ ( ~ ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV172 )
            | ~ ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV225 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1092]) ).

thf(1218,plain,
    ! [SV226: $i,SV173: $i] :
      ( ( ! [SY608: $i] :
            ( ~ ( in @ SY608 @ SV173 )
            | ~ ( in @ SY608 @ SV226 ) )
        | ~ ( disjoint @ SV173 @ SV226 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1093]) ).

thf(1219,plain,
    ! [SV80: $i,SV227: $i] :
      ( ( ! [SY609: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY609 @ SV227 @ SV80 ) @ SV80 )
                    | ( in @ ( sK15_D @ SY609 @ SV227 @ SV80 ) @ SV227 )
                    | ~ ( in @ ( sK15_D @ SY609 @ SV227 @ SV80 ) @ SY609 ) )
                | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY609 @ SV227 @ SV80 ) @ SV80 )
                          | ( in @ ( sK15_D @ SY609 @ SV227 @ SV80 ) @ SY609 ) )
                      | ~ ( ~ ( in @ ( sK15_D @ SY609 @ SV227 @ SV80 ) @ SV227 )
                          | ( in @ ( sK15_D @ SY609 @ SV227 @ SV80 ) @ SY609 ) ) ) )
            | ( SY609
              = ( set_difference @ SV80 @ SV227 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1094]) ).

thf(1220,plain,
    ! [SV228: $i,SV80: $i] :
      ( ( ! [SY610: $i] :
            ( ( SY610
             != ( set_difference @ SV80 @ SV228 ) )
            | ~ ( ~ ! [SY611: $i] :
                      ( ~ ( in @ SY611 @ SV80 )
                      | ( in @ SY611 @ SV228 )
                      | ( in @ SY611 @ SY610 ) )
                | ~ ~ ( ~ ! [SY426: $i] :
                            ( ~ ( in @ SY426 @ SY610 )
                            | ( in @ SY426 @ SV80 ) )
                      | ~ ! [SY613: $i] :
                            ( ~ ( in @ SY613 @ SY610 )
                            | ~ ( in @ SY613 @ SV228 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1095]) ).

thf(1221,plain,
    ! [SV229: $i,SV174: $i] :
      ( ( ( ( set_difference @ SV174 @ SV229 )
         != empty_set )
        | ( subset @ SV174 @ SV229 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1096]) ).

thf(1222,plain,
    ! [SV230: $i,SV175: $i] :
      ( ( ~ ( subset @ SV175 @ SV230 )
        | ( ( set_difference @ SV175 @ SV230 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1097]) ).

thf(1223,plain,
    ! [SV176: $i,SV231: $i] :
      ( ( ~ ( ~ ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV176 )
            | ~ ~ ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV231 ) )
        | ( subset @ SV176 @ SV231 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1099]) ).

thf(1224,plain,
    ! [SV232: $i,SV177: $i] :
      ( ( ~ ( subset @ SV177 @ SV232 )
        | ! [SY614: $i] :
            ( ~ ( in @ SY614 @ SV177 )
            | ( in @ SY614 @ SV232 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1100]) ).

thf(1225,plain,
    ! [SV81: $i,SV233: $i] :
      ( ( ! [SY615: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY615 @ SV233 @ SV81 ) @ SV81 )
                    | ~ ( in @ ( sK19_D @ SY615 @ SV233 @ SV81 ) @ SV233 )
                    | ~ ( in @ ( sK19_D @ SY615 @ SV233 @ SV81 ) @ SY615 ) )
                | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY615 @ SV233 @ SV81 ) @ SV81 )
                          | ( in @ ( sK19_D @ SY615 @ SV233 @ SV81 ) @ SY615 ) )
                      | ~ ( ( in @ ( sK19_D @ SY615 @ SV233 @ SV81 ) @ SV233 )
                          | ( in @ ( sK19_D @ SY615 @ SV233 @ SV81 ) @ SY615 ) ) ) )
            | ( SY615
              = ( set_intersection2 @ SV81 @ SV233 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1101]) ).

thf(1226,plain,
    ! [SV234: $i,SV81: $i] :
      ( ( ! [SY616: $i] :
            ( ( SY616
             != ( set_intersection2 @ SV81 @ SV234 ) )
            | ~ ( ~ ! [SY617: $i] :
                      ( ~ ( in @ SY617 @ SV81 )
                      | ~ ( in @ SY617 @ SV234 )
                      | ( in @ SY617 @ SY616 ) )
                | ~ ~ ( ~ ! [SY433: $i] :
                            ( ~ ( in @ SY433 @ SY616 )
                            | ( in @ SY433 @ SV81 ) )
                      | ~ ! [SY619: $i] :
                            ( ~ ( in @ SY619 @ SY616 )
                            | ( in @ SY619 @ SV234 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1102]) ).

thf(1227,plain,
    ! [SV235: $i,SV178: $i] :
      ( ( ( ( set_difference @ SV178 @ SV235 )
         != empty_set )
        | ( subset @ SV178 @ SV235 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1103]) ).

thf(1228,plain,
    ! [SV236: $i,SV179: $i] :
      ( ( ~ ( subset @ SV179 @ SV236 )
        | ( ( set_difference @ SV179 @ SV236 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1104]) ).

thf(1229,plain,
    ! [SV82: $i,SV237: $i] :
      ( ( ~ ( subset @ SV237 @ ( sK32_B @ SV82 ) )
        | ( are_equipotent @ SV237 @ ( sK32_B @ SV82 ) )
        | ( in @ SV237 @ ( sK32_B @ SV82 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1105]) ).

thf(1230,plain,
    ! [SV82: $i] :
      ( ( ~ ! [SY436: $i] :
              ( ~ ( in @ SY436 @ ( sK32_B @ SV82 ) )
              | ( in @ ( powerset @ SY436 ) @ ( sK32_B @ SV82 ) ) )
        | ~ ~ ( ~ ! [SY437: $i,SY438: $i] :
                    ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
                    | ~ ( subset @ SY438 @ SY437 )
                    | ( in @ SY438 @ ( sK32_B @ SV82 ) ) )
              | ~ ( in @ SV82 @ ( sK32_B @ SV82 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1106]) ).

thf(1231,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ! [SY532: $i,SY533: $i] :
            ( ~ ( in @ SV83 @ SY532 )
            | ~ ( in @ SV144 @ SY533 )
            | ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY532 @ SY533 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1107]) ).

thf(1232,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ~ ( ~ ! [SY534: $i] :
                  ( ! [SY535: $i] :
                      ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY534 @ SY535 ) )
                  | ( in @ SV83 @ SY534 ) )
            | ~ ! [SY536: $i,SY537: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY536 @ SY537 ) )
                  | ( in @ SV144 @ SY537 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1108]) ).

thf(1233,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ~ ( ~ ( ( ( sK29_C @ SV238 @ SV180 )
                 != SV180 )
                | ~ ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) )
            | ~ ( ( ( sK29_C @ SV238 @ SV180 )
                  = SV180 )
                | ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) ) )
        | ( SV238
          = ( singleton @ SV180 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1109]) ).

thf(1234,plain,
    ! [SV181: $i,SV239: $i] :
      ( ( ( SV239
         != ( singleton @ SV181 ) )
        | ~ ( ~ ! [SY620: $i] :
                  ( ( SY620 != SV181 )
                  | ( in @ SY620 @ SV239 ) )
            | ~ ! [SY621: $i] :
                  ( ~ ( in @ SY621 @ SV239 )
                  | ( SY621 = SV181 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1110]) ).

thf(1235,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ~ ( ~ ( ! [SY622: $i] :
                    ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SY622 )
                    | ~ ( in @ SY622 @ SV182 ) )
                | ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
            | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ ( sK18_SY312 @ SV240 @ SV182 ) )
                    | ~ ( in @ ( sK18_SY312 @ SV240 @ SV182 ) @ SV182 ) )
                | ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) ) )
        | ( SV240
          = ( union @ SV182 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1111]) ).

thf(1236,plain,
    ! [SV183: $i,SV241: $i] :
      ( ( ( SV241
         != ( union @ SV183 ) )
        | ~ ( ~ ! [SY623: $i] :
                  ( ! [SY570: $i] :
                      ( ~ ( in @ SY623 @ SY570 )
                      | ~ ( in @ SY570 @ SV183 ) )
                  | ( in @ SY623 @ SV241 ) )
            | ~ ! [SY625: $i] :
                  ( ~ ( in @ SY625 @ SV241 )
                  | ~ ( ~ ( in @ SY625 @ ( sK16_D @ SY625 @ SV241 @ SV183 ) )
                      | ~ ( in @ ( sK16_D @ SY625 @ SV241 @ SV183 ) @ SV183 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1112]) ).

thf(1237,plain,
    ! [SV184: $i] :
      ( ( ( ~ ( relation @ SV184 ) )
        = $true )
      | ( ( ( ( relation_dom @ SV184 )
           != empty_set )
          | ( SV184 = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1113]) ).

thf(1238,plain,
    ! [SV185: $i] :
      ( ( ( ~ ( relation @ SV185 ) )
        = $true )
      | ( ( ( ( relation_rng @ SV185 )
           != empty_set )
          | ( SV185 = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1114]) ).

thf(1239,plain,
    ! [SV242: $i,SV186: $i] :
      ( ( ~ ( subset @ SV186 @ ( singleton @ SV242 ) )
        | ( SV186 = empty_set )
        | ( SV186
          = ( singleton @ SV242 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1115]) ).

thf(1240,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1116]) ).

thf(1241,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1116]) ).

thf(1242,plain,
    ! [SV84: $i,SV243: $i] :
      ( ( ~ ( subset @ SV243 @ ( sK2_B @ SV84 ) )
        | ( are_equipotent @ SV243 @ ( sK2_B @ SV84 ) )
        | ( in @ SV243 @ ( sK2_B @ SV84 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1117]) ).

thf(1243,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY447: $i] :
              ( ~ ( ~ ! [SY448: $i] :
                        ( ~ ( subset @ SY448 @ SY447 )
                        | ( in @ SY448 @ ( sK3_SY300 @ SY447 @ SV84 ) ) )
                  | ~ ( in @ ( sK3_SY300 @ SY447 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
              | ~ ( in @ SY447 @ ( sK2_B @ SV84 ) ) )
        | ~ ~ ( ~ ! [SY449: $i,SY450: $i] :
                    ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
                    | ~ ( subset @ SY450 @ SY449 )
                    | ( in @ SY450 @ ( sK2_B @ SV84 ) ) )
              | ~ ( in @ SV84 @ ( sK2_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1118]) ).

thf(1244,plain,
    ! [SV187: $i] :
      ( ( ( ~ ( relation @ SV187 ) )
        = $true )
      | ( ( ( relation_rng @ SV187 )
          = ( relation_dom @ ( relation_inverse @ SV187 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1119]) ).

thf(1245,plain,
    ! [SV188: $i] :
      ( ( ( ~ ( relation @ SV188 ) )
        = $true )
      | ( ( ( relation_dom @ SV188 )
          = ( relation_rng @ ( relation_inverse @ SV188 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1120]) ).

thf(1246,plain,
    ! [SV244: $i,SV85: $i] :
      ( ( ! [SY626: $i] :
            ( ~ ( ~ ( ! [SY627: $i,SY628: $i] :
                        ( ~ ( in @ SY627 @ SV85 )
                        | ~ ( in @ SY628 @ SV244 )
                        | ( ( sK23_D @ SY626 @ SV244 @ SV85 )
                         != ( ordered_pair @ SY627 @ SY628 ) ) )
                    | ~ ( in @ ( sK23_D @ SY626 @ SV244 @ SV85 ) @ SY626 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY626 @ SV244 @ SV85 ) @ SV85 )
                              | ~ ( in @ ( sK25_SY318 @ SY626 @ SV244 @ SV85 ) @ SV244 ) )
                        | ( ( sK23_D @ SY626 @ SV244 @ SV85 )
                         != ( ordered_pair @ ( sK24_SY316 @ SY626 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SY626 @ SV244 @ SV85 ) ) ) )
                    | ( in @ ( sK23_D @ SY626 @ SV244 @ SV85 ) @ SY626 ) ) )
            | ( SY626
              = ( cartesian_product2 @ SV85 @ SV244 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1121]) ).

thf(1247,plain,
    ! [SV245: $i,SV85: $i] :
      ( ( ! [SY629: $i] :
            ( ( SY629
             != ( cartesian_product2 @ SV85 @ SV245 ) )
            | ~ ( ~ ! [SY630: $i] :
                      ( ! [SY631: $i,SY632: $i] :
                          ( ~ ( in @ SY631 @ SV85 )
                          | ~ ( in @ SY632 @ SV245 )
                          | ( SY630
                           != ( ordered_pair @ SY631 @ SY632 ) ) )
                      | ( in @ SY630 @ SY629 ) )
                | ~ ! [SY633: $i] :
                      ( ~ ( in @ SY633 @ SY629 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY633 @ SY629 @ SV245 @ SV85 ) @ SV85 )
                                | ~ ( in @ ( sK22_SY313 @ SY633 @ SY629 @ SV245 @ SV85 ) @ SV245 ) )
                          | ( SY633
                           != ( ordered_pair @ ( sK21_E @ SY633 @ SY629 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SY633 @ SY629 @ SV245 @ SV85 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1122]) ).

thf(1248,plain,
    ! [SV86: $i] :
      ( ( ( ~ ! [SY461: $i] :
                ( ~ ( ~ ( ! [SY462: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ SY462 ) @ SV86 )
                        | ~ ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ ( sK41_SY326 @ SY461 @ SV86 ) ) @ SV86 )
                        | ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) ) )
                | ( SY461
                  = ( relation_dom @ SV86 ) ) ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1123]) ).

thf(1249,plain,
    ! [SV86: $i] :
      ( ( ( ~ ! [SY463: $i] :
                ( ( SY463
                 != ( relation_dom @ SV86 ) )
                | ~ ( ~ ! [SY464: $i] :
                          ( ! [SY465: $i] :
                              ~ ( in @ ( ordered_pair @ SY464 @ SY465 ) @ SV86 )
                          | ( in @ SY464 @ SY463 ) )
                    | ~ ! [SY466: $i] :
                          ( ~ ( in @ SY466 @ SY463 )
                          | ( in @ ( ordered_pair @ SY466 @ ( sK39_D @ SY466 @ SY463 @ SV86 ) ) @ SV86 ) ) ) ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1123]) ).

thf(1250,plain,
    ! [SV246: $i,SV189: $i] :
      ( ( ~ ( in @ SV189 @ SV246 )
        | ( subset @ ( singleton @ SV189 ) @ SV246 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1126]) ).

thf(1251,plain,
    ! [SV247: $i,SV190: $i] :
      ( ( ~ ( subset @ ( singleton @ SV190 ) @ SV247 )
        | ( in @ SV190 @ SV247 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1127]) ).

thf(1252,plain,
    ! [SV248: $i,SV191: $i] :
      ( ( ( ( set_intersection2 @ SV191 @ SV248 )
         != empty_set )
        | ( disjoint @ SV191 @ SV248 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1128]) ).

thf(1253,plain,
    ! [SV249: $i,SV192: $i] :
      ( ( ~ ( disjoint @ SV192 @ SV249 )
        | ( ( set_intersection2 @ SV192 @ SV249 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1129]) ).

thf(1254,plain,
    ! [SV88: $i] :
      ( ( ( ~ ! [SY467: $i] :
                ( ~ ( ~ ( ! [SY468: $i] :
                            ~ ( in @ ( ordered_pair @ SY468 @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                        | ~ ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY467 @ SV88 ) @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                        | ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) ) )
                | ( SY467
                  = ( relation_rng @ SV88 ) ) ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1130]) ).

thf(1255,plain,
    ! [SV88: $i] :
      ( ( ( ~ ! [SY469: $i] :
                ( ( SY469
                 != ( relation_rng @ SV88 ) )
                | ~ ( ~ ! [SY470: $i] :
                          ( ! [SY471: $i] :
                              ~ ( in @ ( ordered_pair @ SY471 @ SY470 ) @ SV88 )
                          | ( in @ SY470 @ SY469 ) )
                    | ~ ! [SY472: $i] :
                          ( ~ ( in @ SY472 @ SY469 )
                          | ( in @ ( ordered_pair @ ( sK36_D @ SY472 @ SY469 @ SV88 ) @ SY472 ) @ SV88 ) ) ) ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1130]) ).

thf(1256,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1131]) ).

thf(1257,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1131]) ).

thf(1258,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1132]) ).

thf(1259,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1132]) ).

thf(1260,plain,
    ! [SV89: $i,SV250: $i] :
      ( ( ! [SY634: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY634 @ SV250 @ SV89 ) @ SY634 )
                          | ( ( sK27_D @ SY634 @ SV250 @ SV89 )
                           != SV89 ) )
                      | ~ ( ~ ( in @ ( sK27_D @ SY634 @ SV250 @ SV89 ) @ SY634 )
                          | ( ( sK27_D @ SY634 @ SV250 @ SV89 )
                           != SV250 ) ) )
                | ~ ( ( in @ ( sK27_D @ SY634 @ SV250 @ SV89 ) @ SY634 )
                    | ( ( sK27_D @ SY634 @ SV250 @ SV89 )
                      = SV89 )
                    | ( ( sK27_D @ SY634 @ SV250 @ SV89 )
                      = SV250 ) ) )
            | ( SY634
              = ( unordered_pair @ SV89 @ SV250 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1133]) ).

thf(1261,plain,
    ! [SV251: $i,SV89: $i] :
      ( ( ! [SY635: $i] :
            ( ( SY635
             != ( unordered_pair @ SV89 @ SV251 ) )
            | ~ ( ~ ! [SY636: $i] :
                      ( ~ ( in @ SY636 @ SY635 )
                      | ( SY636 = SV89 )
                      | ( SY636 = SV251 ) )
                | ~ ~ ( ~ ! [SY478: $i] :
                            ( ( SY478 != SV89 )
                            | ( in @ SY478 @ SY635 ) )
                      | ~ ! [SY638: $i] :
                            ( ( SY638 != SV251 )
                            | ( in @ SY638 @ SY635 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1134]) ).

thf(1262,plain,
    ! [SV252: $i,SV193: $i] :
      ( ( ( ( set_difference @ SV193 @ ( singleton @ SV252 ) )
         != SV193 )
        | ~ ( in @ SV252 @ SV193 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1135]) ).

thf(1263,plain,
    ! [SV194: $i,SV253: $i] :
      ( ( ( in @ SV253 @ SV194 )
        | ( ( set_difference @ SV194 @ ( singleton @ SV253 ) )
          = SV194 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1136]) ).

thf(1264,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1137]) ).

thf(1265,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1137]) ).

thf(1266,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1138]) ).

thf(1267,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1138]) ).

thf(1268,plain,
    ! [SV90: $i,SV195: $i] :
      ( ( ( ~ ( relation @ SV195 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY579: $i] :
                    ( ~ ( relation @ SY579 )
                    | ~ ( ~ ( ! [SY580: $i] :
                                ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ SY580 ) @ SV90 )
                                | ~ ( in @ ( ordered_pair @ SY580 @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                            | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) )
                        | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) ) @ SV90 )
                                | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                            | ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) ) )
                    | ( SY579
                      = ( relation_composition @ SV90 @ SV195 ) ) )
              | ~ ! [SY581: $i] :
                    ( ~ ( relation @ SY581 )
                    | ( SY581
                     != ( relation_composition @ SV90 @ SV195 ) )
                    | ~ ( ~ ! [SY582: $i,SY583: $i] :
                              ( ! [SY584: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY582 @ SY584 ) @ SV90 )
                                  | ~ ( in @ ( ordered_pair @ SY584 @ SY583 ) @ SV195 ) )
                              | ( in @ ( ordered_pair @ SY582 @ SY583 ) @ SY581 ) )
                        | ~ ! [SY585: $i,SY586: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY585 @ SY586 ) @ SY581 )
                              | ~ ( ~ ( in @ ( ordered_pair @ SY585 @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) ) @ SV90 )
                                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) @ SY586 ) @ SV195 ) ) ) ) ) ) )
        = $true )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1139]) ).

thf(1269,plain,
    ! [SV196: $i] :
      ( ( ( ~ ( empty @ SV196 ) )
        = $true )
      | ( ( empty @ ( relation_dom @ SV196 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1140]) ).

thf(1270,plain,
    ! [SV197: $i] :
      ( ( ( ~ ( empty @ SV197 ) )
        = $true )
      | ( ( relation @ ( relation_dom @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1141]) ).

thf(1271,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
                | ~ ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) )
            | ~ ( ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
                | ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) ) )
        | ( SV254
          = ( powerset @ SV198 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1142]) ).

thf(1272,plain,
    ! [SV199: $i,SV255: $i] :
      ( ( ( SV255
         != ( powerset @ SV199 ) )
        | ~ ( ~ ! [SY639: $i] :
                  ( ~ ( in @ SY639 @ SV255 )
                  | ( subset @ SY639 @ SV199 ) )
            | ~ ! [SY640: $i] :
                  ( ~ ( subset @ SY640 @ SV199 )
                  | ( in @ SY640 @ SV255 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1143]) ).

thf(1273,plain,
    ! [SV91: $i] :
      ( ( ( ~ ! [SY489: $i] :
                ( ~ ( relation @ SY489 )
                | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                        | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                        | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) ) )
                | ( SY489
                  = ( relation_inverse @ SV91 ) ) ) )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1144]) ).

thf(1274,plain,
    ! [SV91: $i] :
      ( ( ( ~ ! [SY490: $i] :
                ( ~ ( relation @ SY490 )
                | ( SY490
                 != ( relation_inverse @ SV91 ) )
                | ~ ( ~ ! [SY491: $i,SY492: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY491 @ SY492 ) @ SY490 )
                          | ( in @ ( ordered_pair @ SY492 @ SY491 ) @ SV91 ) )
                    | ~ ! [SY493: $i,SY494: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY494 @ SY493 ) @ SV91 )
                          | ( in @ ( ordered_pair @ SY493 @ SY494 ) @ SY490 ) ) ) ) )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1144]) ).

thf(1275,plain,
    ! [SV256: $i,SV200: $i] :
      ( ( ~ ( subset @ SV200 @ ( singleton @ SV256 ) )
        | ( SV200 = empty_set )
        | ( SV200
          = ( singleton @ SV256 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1145]) ).

thf(1276,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1146]) ).

thf(1277,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1146]) ).

thf(1278,plain,
    ! [SV257: $i,SV201: $i] :
      ( ( ~ ( element @ SV201 @ ( powerset @ SV257 ) )
        | ( subset @ SV201 @ SV257 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1147]) ).

thf(1279,plain,
    ! [SV258: $i,SV202: $i] :
      ( ( ~ ( subset @ SV202 @ SV258 )
        | ( element @ SV202 @ ( powerset @ SV258 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1148]) ).

thf(1280,plain,
    ! [SV92: $i] :
      ( ( ( element @ ( sK8_B @ SV92 ) @ ( powerset @ SV92 ) )
        = $true )
      | ( ( empty @ SV92 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1149]) ).

thf(1281,plain,
    ! [SV92: $i] :
      ( ( ( ~ ( empty @ ( sK8_B @ SV92 ) ) )
        = $true )
      | ( ( empty @ SV92 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1150]) ).

thf(1282,plain,
    ! [SV259: $i,SV93: $i] :
      ( ( ! [SY641: $i] :
            ( ~ ( in @ SV93 @ SY641 )
            | ~ ( in @ SV259 @ SY641 )
            | ( subset @ ( unordered_pair @ SV93 @ SV259 ) @ SY641 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1151]) ).

thf(1283,plain,
    ! [SV93: $i] :
      ( ( ~ ! [SY497: $i,SY498: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV93 @ SY497 ) @ SY498 )
              | ( in @ SV93 @ SY498 ) )
        | ~ ! [SY499: $i,SY500: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV93 @ SY499 ) @ SY500 )
              | ( in @ SY499 @ SY500 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1152]) ).

thf(1284,plain,
    ! [SV260: $i,SV94: $i] :
      ( ( ! [SY642: $i] :
            ( ~ ( relation @ SY642 )
            | ~ ( in @ ( ordered_pair @ SV94 @ SV260 ) @ SY642 )
            | ( in @ SV94 @ ( relation_field @ SY642 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1153]) ).

thf(1285,plain,
    ! [SV261: $i,SV94: $i] :
      ( ( ! [SY643: $i] :
            ( ~ ( relation @ SY643 )
            | ~ ( in @ ( ordered_pair @ SV94 @ SV261 ) @ SY643 )
            | ( in @ SV261 @ ( relation_field @ SY643 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1154]) ).

thf(1286,plain,
    ! [SV203: $i] :
      ( ( ( in @ ( sK42_B @ SV203 ) @ SV203 )
        = $true )
      | ( ( SV203 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1155]) ).

thf(1287,plain,
    ! [SV204: $i] :
      ( ( ( ( SV204 != empty_set ) )
        = $true )
      | ( ( ! [SY594: $i] :
              ~ ( in @ SY594 @ SV204 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1156]) ).

thf(1288,plain,
    ! [SV145: $i,SV95: $i] :
      ( ( ! [SY538: $i] :
            ( ! [SY539: $i] :
                ( ( ordered_pair @ SV95 @ SV145 )
               != ( ordered_pair @ SY538 @ SY539 ) )
            | ( SV95 = SY538 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1158]) ).

thf(1289,plain,
    ! [SV145: $i,SV95: $i] :
      ( ( ! [SY540: $i,SY541: $i] :
            ( ( ( ordered_pair @ SV95 @ SV145 )
             != ( ordered_pair @ SY540 @ SY541 ) )
            | ( SV145 = SY541 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1159]) ).

thf(1290,plain,
    ! [SV96: $i] :
      ( ( ( ~ ! [SY510: $i] :
                ( ~ ( relation @ SY510 )
                | ~ ( subset @ SV96 @ SY510 )
                | ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SY510 ) ) ) )
        = $false )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1160]) ).

thf(1291,plain,
    ! [SV96: $i] :
      ( ( ( ~ ! [SY511: $i] :
                ( ~ ( relation @ SY511 )
                | ~ ( subset @ SV96 @ SY511 )
                | ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SY511 ) ) ) )
        = $false )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1160]) ).

thf(1292,plain,
    ! [SV205: $i] :
      ( ( ( ~ ( ~ ! [SY595: $i,SY596: $i] :
                    ( ( sK48_B @ SV205 )
                   != ( ordered_pair @ SY595 @ SY596 ) )
              | ~ ( in @ ( sK48_B @ SV205 ) @ SV205 ) ) )
        = $true )
      | ( ( relation @ SV205 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1161]) ).

thf(1293,plain,
    ! [SV206: $i] :
      ( ( ( ~ ( relation @ SV206 ) )
        = $true )
      | ( ( ! [SY597: $i] :
              ( ( SY597
                = ( ordered_pair @ ( sK46_C @ SY597 @ SV206 ) @ ( sK47_SY329 @ SY597 @ SV206 ) ) )
              | ~ ( in @ SY597 @ SV206 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1162]) ).

thf(1294,plain,
    ! [SV5: $i,SV156: $i] :
      ( ( ( relation @ SV156 )
        = $false )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV5 @ SV156 ) ) @ ( relation_dom @ SV5 ) )
        = $true )
      | ( ( relation @ SV5 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1163]) ).

thf(1295,plain,
    ! [SV6: $i,SV157: $i] :
      ( ( ( relation @ SV157 )
        = $false )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV6 @ SV157 ) ) @ ( relation_rng @ SV157 ) )
        = $true )
      | ( ( relation @ SV6 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1164]) ).

thf(1296,plain,
    ! [SV7: $i,SV158: $i] :
      ( ( ( relation @ SV158 )
        = $false )
      | ( ( ~ ( subset @ ( relation_rng @ SV7 ) @ ( relation_dom @ SV158 ) )
          | ( ( relation_dom @ ( relation_composition @ SV7 @ SV158 ) )
            = ( relation_dom @ SV7 ) ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1165]) ).

thf(1297,plain,
    ! [SV8: $i,SV159: $i] :
      ( ( ( relation @ SV159 )
        = $false )
      | ( ( ~ ( subset @ ( relation_dom @ SV8 ) @ ( relation_rng @ SV159 ) )
          | ( ( relation_rng @ ( relation_composition @ SV159 @ SV8 ) )
            = ( relation_rng @ SV8 ) ) )
        = $true )
      | ( ( relation @ SV8 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1166]) ).

thf(1298,plain,
    ! [SV13: $i,SV97: $i] :
      ( ( ( relation @ SV97 )
        = $false )
      | ( ( relation @ SV13 )
        = $false )
      | ( ( relation @ ( relation_composition @ SV13 @ SV97 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1167]) ).

thf(1299,plain,
    ! [SV14: $i,SV98: $i] :
      ( ( ( relation @ SV98 )
        = $false )
      | ( ( relation @ SV14 )
        = $false )
      | ( ( relation @ ( set_union2 @ SV14 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1168]) ).

thf(1300,plain,
    ! [SV26: $i,SV102: $i,SV207: $i] :
      ( ( ( ~ ( in @ SV207 @ SV102 ) )
        = $true )
      | ( ( in @ SV207 @ SV26 )
        = $true )
      | ( ( element @ SV102 @ ( powerset @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1172]) ).

thf(1301,plain,
    ! [SV103: $i,SV27: $i,SV208: $i] :
      ( ( ( in @ SV208 @ SV27 )
        = $true )
      | ( ( subset @ SV27 @ ( set_difference @ SV103 @ ( singleton @ SV208 ) ) )
        = $true )
      | ( ( subset @ SV27 @ SV103 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1173]) ).

thf(1302,plain,
    ! [SV160: $i,SV146: $i,SV105: $i,SV29: $i] :
      ( ( ( ~ ( subset @ SV29 @ SV105 ) )
        = $true )
      | ( ( ~ ( subset @ SV146 @ SV160 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV29 @ SV146 ) @ ( cartesian_product2 @ SV105 @ SV160 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1174]) ).

thf(1303,plain,
    ! [SV147: $i,SV108: $i,SV32: $i] :
      ( ( ( subset @ SV32 @ SV108 )
        = $false )
      | ( ( ~ ( subset @ SV32 @ SV147 ) )
        = $true )
      | ( ( subset @ SV32 @ ( set_intersection2 @ SV108 @ SV147 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1175]) ).

thf(1304,plain,
    ! [SV148: $i,SV109: $i,SV33: $i] :
      ( ( ( subset @ SV33 @ SV109 )
        = $false )
      | ( ( ~ ( subset @ SV109 @ SV148 ) )
        = $true )
      | ( ( subset @ SV33 @ SV148 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1176]) ).

thf(1305,plain,
    ! [SV44: $i,SV149: $i,SV120: $i] :
      ( ( ( disjoint @ SV120 @ SV149 )
        = $false )
      | ( ( ~ ( subset @ SV44 @ SV120 ) )
        = $true )
      | ( ( disjoint @ SV44 @ SV149 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1180]) ).

thf(1306,plain,
    ! [SV150: $i,SV123: $i,SV48: $i] :
      ( ( ( subset @ SV48 @ SV123 )
        = $false )
      | ( ( ~ ( subset @ SV150 @ SV123 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV48 @ SV150 ) @ SV123 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1181]) ).

thf(1307,plain,
    ! [SV70: $i,SV154: $i,SV137: $i] :
      ( ( ( element @ SV137 @ ( powerset @ SV154 ) )
        = $false )
      | ( ( ~ ( in @ SV70 @ SV137 ) )
        = $true )
      | ( ( element @ SV70 @ SV154 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1187]) ).

thf(1308,plain,
    ! [SV71: $i,SV155: $i,SV138: $i] :
      ( ( ( element @ SV138 @ ( powerset @ SV155 ) )
        = $false )
      | ( ( ~ ( in @ SV71 @ SV138 ) )
        = $true )
      | ( ( ~ ( empty @ SV155 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1188]) ).

thf(1309,plain,
    ! [SV73: $i,SV140: $i] :
      ( ( ( empty @ SV140 )
        = $false )
      | ( ( SV73 = SV140 )
        = $true )
      | ( ( empty @ SV73 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1190]) ).

thf(1310,plain,
    ! [SV211: $i,SV162: $i] :
      ( ( ( ~ ( in @ SV162 @ SV211 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV162 ) @ SV211 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1191]) ).

thf(1311,plain,
    ! [SV212: $i,SV163: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV163 ) @ SV212 ) )
        = $true )
      | ( ( in @ SV163 @ SV212 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1192]) ).

thf(1312,plain,
    ! [SV213: $i,SV164: $i] :
      ( ( ( ~ ( subset @ SV164 @ SV213 )
          | ~ ( subset @ SV213 @ SV164 ) )
        = $true )
      | ( ( SV164 = SV213 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1193]) ).

thf(1313,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1194]) ).

thf(1314,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1195]) ).

thf(1315,plain,
    ! [SV214: $i,SV165: $i] :
      ( ( ( ( SV165 = SV214 )
          | ~ ( subset @ SV165 @ SV214 ) )
        = $true )
      | ( ( proper_subset @ SV165 @ SV214 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1196]) ).

thf(1316,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1197]) ).

thf(1317,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1198]) ).

thf(1318,plain,
    ! [SV215: $i,SV166: $i] :
      ( ( ( disjoint @ SV166 @ SV215 )
        = $true )
      | ( ( in @ ( sK30_C @ SV215 @ SV166 ) @ ( set_intersection2 @ SV166 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1199]) ).

thf(1319,plain,
    ! [SV216: $i,SV167: $i] :
      ( ( ( ! [SY598: $i] :
              ~ ( in @ SY598 @ ( set_intersection2 @ SV167 @ SV216 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV167 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1200]) ).

thf(1320,plain,
    ! [SV74: $i,SV141: $i] :
      ( ( ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV74 )
        = $true )
      | ( ( element @ SV74 @ ( powerset @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1201]) ).

thf(1321,plain,
    ! [SV74: $i,SV141: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV141 ) )
        = $true )
      | ( ( element @ SV74 @ ( powerset @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1202]) ).

thf(1322,plain,
    ! [SV142: $i,SV262: $i,SV75: $i] :
      ( ( ! [SY644: $i] :
            ( ~ ( in @ SV75 @ SV262 )
            | ~ ( in @ SV142 @ SY644 )
            | ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV262 @ SY644 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1203]) ).

thf(1323,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ~ ! [SY528: $i] :
              ( ! [SY529: $i] :
                  ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY528 @ SY529 ) )
              | ( in @ SV75 @ SY528 ) )
        | ~ ! [SY530: $i,SY531: $i] :
              ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY530 @ SY531 ) )
              | ( in @ SV142 @ SY531 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1204]) ).

thf(1324,plain,
    ! [SV217: $i,SV76: $i] :
      ( ( ( ~ ( subset @ SV76 @ SV217 ) )
        = $true )
      | ( ( ! [SY599: $i] : ( subset @ ( cartesian_product2 @ SV76 @ SY599 ) @ ( cartesian_product2 @ SV217 @ SY599 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1205]) ).

thf(1325,plain,
    ! [SV218: $i,SV76: $i] :
      ( ( ( ~ ( subset @ SV76 @ SV218 ) )
        = $true )
      | ( ( ! [SY600: $i] : ( subset @ ( cartesian_product2 @ SY600 @ SV76 ) @ ( cartesian_product2 @ SY600 @ SV218 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1206]) ).

thf(1326,plain,
    ! [SV219: $i,SV168: $i] :
      ( ( ( ( ( set_difference @ SV168 @ SV219 )
           != SV168 ) )
        = $true )
      | ( ( disjoint @ SV168 @ SV219 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1207]) ).

thf(1327,plain,
    ! [SV220: $i,SV169: $i] :
      ( ( ( ~ ( disjoint @ SV169 @ SV220 ) )
        = $true )
      | ( ( ( set_difference @ SV169 @ SV220 )
          = SV169 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1208]) ).

thf(1328,plain,
    ! [SV221: $i,SV77: $i,SV263: $i] :
      ( ( ~ ( relation @ SV263 )
        | ~ ( in @ ( ordered_pair @ SV77 @ SV221 ) @ SV263 )
        | ( in @ SV77 @ ( relation_dom @ SV263 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1209]) ).

thf(1329,plain,
    ! [SV222: $i,SV77: $i,SV264: $i] :
      ( ( ~ ( relation @ SV264 )
        | ~ ( in @ ( ordered_pair @ SV77 @ SV222 ) @ SV264 )
        | ( in @ SV222 @ ( relation_rng @ SV264 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1210]) ).

thf(1330,plain,
    ! [SV170: $i] :
      ( ( ( empty @ SV170 )
        = $false )
      | ( ( empty @ ( relation_rng @ SV170 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1211]) ).

thf(1331,plain,
    ! [SV171: $i] :
      ( ( ( empty @ SV171 )
        = $false )
      | ( ( relation @ ( relation_rng @ SV171 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1212]) ).

thf(1332,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
          | ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) )
        = $true )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1213]) ).

thf(1333,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
          | ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) )
        = $true )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1214]) ).

thf(1334,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                      | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) )
                  | ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                      | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) )
            | ~ ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 )
                | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) )
        | ( SV265
          = ( set_union2 @ SV79 @ SV223 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1215]) ).

thf(1335,plain,
    ! [SV224: $i,SV79: $i,SV266: $i] :
      ( ( ( SV266
         != ( set_union2 @ SV79 @ SV224 ) )
        | ~ ( ~ ! [SY645: $i] :
                  ( ~ ( in @ SY645 @ SV266 )
                  | ( in @ SY645 @ SV79 )
                  | ( in @ SY645 @ SV224 ) )
            | ~ ~ ( ~ ! [SY646: $i] :
                        ( ~ ( in @ SY646 @ SV79 )
                        | ( in @ SY646 @ SV266 ) )
                  | ~ ! [SY647: $i] :
                        ( ~ ( in @ SY647 @ SV224 )
                        | ( in @ SY647 @ SV266 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1216]) ).

thf(1336,plain,
    ! [SV225: $i,SV172: $i] :
      ( ( ( disjoint @ SV172 @ SV225 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV172 )
              | ~ ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV225 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1217]) ).

thf(1337,plain,
    ! [SV226: $i,SV173: $i] :
      ( ( ( ! [SY608: $i] :
              ( ~ ( in @ SY608 @ SV173 )
              | ~ ( in @ SY608 @ SV226 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV173 @ SV226 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1218]) ).

thf(1338,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
                | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
                | ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
            | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
                      | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
                  | ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
                      | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) ) ) )
        | ( SV267
          = ( set_difference @ SV80 @ SV227 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1219]) ).

thf(1339,plain,
    ! [SV228: $i,SV80: $i,SV268: $i] :
      ( ( ( SV268
         != ( set_difference @ SV80 @ SV228 ) )
        | ~ ( ~ ! [SY648: $i] :
                  ( ~ ( in @ SY648 @ SV80 )
                  | ( in @ SY648 @ SV228 )
                  | ( in @ SY648 @ SV268 ) )
            | ~ ~ ( ~ ! [SY649: $i] :
                        ( ~ ( in @ SY649 @ SV268 )
                        | ( in @ SY649 @ SV80 ) )
                  | ~ ! [SY650: $i] :
                        ( ~ ( in @ SY650 @ SV268 )
                        | ~ ( in @ SY650 @ SV228 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1220]) ).

thf(1340,plain,
    ! [SV229: $i,SV174: $i] :
      ( ( ( ( ( set_difference @ SV174 @ SV229 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV174 @ SV229 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1221]) ).

thf(1341,plain,
    ! [SV230: $i,SV175: $i] :
      ( ( ( ~ ( subset @ SV175 @ SV230 ) )
        = $true )
      | ( ( ( set_difference @ SV175 @ SV230 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1222]) ).

thf(1342,plain,
    ! [SV176: $i,SV231: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV176 )
              | ~ ~ ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV231 ) ) )
        = $true )
      | ( ( subset @ SV176 @ SV231 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1223]) ).

thf(1343,plain,
    ! [SV232: $i,SV177: $i] :
      ( ( ( ~ ( subset @ SV177 @ SV232 ) )
        = $true )
      | ( ( ! [SY614: $i] :
              ( ~ ( in @ SY614 @ SV177 )
              | ( in @ SY614 @ SV232 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1224]) ).

thf(1344,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
                | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
                | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
            | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
                      | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
                  | ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
                      | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) ) ) )
        | ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1225]) ).

thf(1345,plain,
    ! [SV234: $i,SV81: $i,SV270: $i] :
      ( ( ( SV270
         != ( set_intersection2 @ SV81 @ SV234 ) )
        | ~ ( ~ ! [SY651: $i] :
                  ( ~ ( in @ SY651 @ SV81 )
                  | ~ ( in @ SY651 @ SV234 )
                  | ( in @ SY651 @ SV270 ) )
            | ~ ~ ( ~ ! [SY652: $i] :
                        ( ~ ( in @ SY652 @ SV270 )
                        | ( in @ SY652 @ SV81 ) )
                  | ~ ! [SY653: $i] :
                        ( ~ ( in @ SY653 @ SV270 )
                        | ( in @ SY653 @ SV234 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1226]) ).

thf(1346,plain,
    ! [SV235: $i,SV178: $i] :
      ( ( ( ( ( set_difference @ SV178 @ SV235 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV178 @ SV235 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1227]) ).

thf(1347,plain,
    ! [SV236: $i,SV179: $i] :
      ( ( ( ~ ( subset @ SV179 @ SV236 ) )
        = $true )
      | ( ( ( set_difference @ SV179 @ SV236 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1228]) ).

thf(1348,plain,
    ! [SV82: $i,SV237: $i] :
      ( ( ( ~ ( subset @ SV237 @ ( sK32_B @ SV82 ) )
          | ( are_equipotent @ SV237 @ ( sK32_B @ SV82 ) ) )
        = $true )
      | ( ( in @ SV237 @ ( sK32_B @ SV82 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1229]) ).

thf(1349,plain,
    ! [SV82: $i] :
      ( ( ~ ! [SY436: $i] :
              ( ~ ( in @ SY436 @ ( sK32_B @ SV82 ) )
              | ( in @ ( powerset @ SY436 ) @ ( sK32_B @ SV82 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1230]) ).

thf(1350,plain,
    ! [SV82: $i] :
      ( ( ~ ~ ( ~ ! [SY437: $i,SY438: $i] :
                    ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
                    | ~ ( subset @ SY438 @ SY437 )
                    | ( in @ SY438 @ ( sK32_B @ SV82 ) ) )
              | ~ ( in @ SV82 @ ( sK32_B @ SV82 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1230]) ).

thf(1351,plain,
    ! [SV144: $i,SV271: $i,SV83: $i] :
      ( ( ! [SY654: $i] :
            ( ~ ( in @ SV83 @ SV271 )
            | ~ ( in @ SV144 @ SY654 )
            | ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV271 @ SY654 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1231]) ).

thf(1352,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ~ ! [SY534: $i] :
              ( ! [SY535: $i] :
                  ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY534 @ SY535 ) )
              | ( in @ SV83 @ SY534 ) )
        | ~ ! [SY536: $i,SY537: $i] :
              ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY536 @ SY537 ) )
              | ( in @ SV144 @ SY537 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1232]) ).

thf(1353,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( ~ ( ~ ( ( ( sK29_C @ SV238 @ SV180 )
                   != SV180 )
                  | ~ ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) )
              | ~ ( ( ( sK29_C @ SV238 @ SV180 )
                    = SV180 )
                  | ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) ) ) )
        = $true )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1233]) ).

thf(1354,plain,
    ! [SV181: $i,SV239: $i] :
      ( ( ( ( SV239
           != ( singleton @ SV181 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY620: $i] :
                    ( ( SY620 != SV181 )
                    | ( in @ SY620 @ SV239 ) )
              | ~ ! [SY621: $i] :
                    ( ~ ( in @ SY621 @ SV239 )
                    | ( SY621 = SV181 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1234]) ).

thf(1355,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ~ ( ~ ( ! [SY622: $i] :
                      ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SY622 )
                      | ~ ( in @ SY622 @ SV182 ) )
                  | ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
              | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ ( sK18_SY312 @ SV240 @ SV182 ) )
                      | ~ ( in @ ( sK18_SY312 @ SV240 @ SV182 ) @ SV182 ) )
                  | ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) ) ) )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1235]) ).

thf(1356,plain,
    ! [SV183: $i,SV241: $i] :
      ( ( ( ( SV241
           != ( union @ SV183 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY623: $i] :
                    ( ! [SY570: $i] :
                        ( ~ ( in @ SY623 @ SY570 )
                        | ~ ( in @ SY570 @ SV183 ) )
                    | ( in @ SY623 @ SV241 ) )
              | ~ ! [SY625: $i] :
                    ( ~ ( in @ SY625 @ SV241 )
                    | ~ ( ~ ( in @ SY625 @ ( sK16_D @ SY625 @ SV241 @ SV183 ) )
                        | ~ ( in @ ( sK16_D @ SY625 @ SV241 @ SV183 ) @ SV183 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1236]) ).

thf(1357,plain,
    ! [SV184: $i] :
      ( ( ( relation @ SV184 )
        = $false )
      | ( ( ( ( relation_dom @ SV184 )
           != empty_set )
          | ( SV184 = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1237]) ).

thf(1358,plain,
    ! [SV185: $i] :
      ( ( ( relation @ SV185 )
        = $false )
      | ( ( ( ( relation_rng @ SV185 )
           != empty_set )
          | ( SV185 = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1238]) ).

thf(1359,plain,
    ! [SV242: $i,SV186: $i] :
      ( ( ( ~ ( subset @ SV186 @ ( singleton @ SV242 ) ) )
        = $true )
      | ( ( ( SV186 = empty_set )
          | ( SV186
            = ( singleton @ SV242 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1239]) ).

thf(1360,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1240]) ).

thf(1361,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1241]) ).

thf(1362,plain,
    ! [SV84: $i,SV243: $i] :
      ( ( ( ~ ( subset @ SV243 @ ( sK2_B @ SV84 ) )
          | ( are_equipotent @ SV243 @ ( sK2_B @ SV84 ) ) )
        = $true )
      | ( ( in @ SV243 @ ( sK2_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1242]) ).

thf(1363,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY447: $i] :
              ( ~ ( ~ ! [SY448: $i] :
                        ( ~ ( subset @ SY448 @ SY447 )
                        | ( in @ SY448 @ ( sK3_SY300 @ SY447 @ SV84 ) ) )
                  | ~ ( in @ ( sK3_SY300 @ SY447 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
              | ~ ( in @ SY447 @ ( sK2_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1243]) ).

thf(1364,plain,
    ! [SV84: $i] :
      ( ( ~ ~ ( ~ ! [SY449: $i,SY450: $i] :
                    ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
                    | ~ ( subset @ SY450 @ SY449 )
                    | ( in @ SY450 @ ( sK2_B @ SV84 ) ) )
              | ~ ( in @ SV84 @ ( sK2_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1243]) ).

thf(1365,plain,
    ! [SV187: $i] :
      ( ( ( relation @ SV187 )
        = $false )
      | ( ( ( relation_rng @ SV187 )
          = ( relation_dom @ ( relation_inverse @ SV187 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1244]) ).

thf(1366,plain,
    ! [SV188: $i] :
      ( ( ( relation @ SV188 )
        = $false )
      | ( ( ( relation_dom @ SV188 )
          = ( relation_rng @ ( relation_inverse @ SV188 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1245]) ).

thf(1367,plain,
    ! [SV272: $i,SV244: $i,SV85: $i] :
      ( ( ~ ( ~ ( ! [SY655: $i,SY656: $i] :
                    ( ~ ( in @ SY655 @ SV85 )
                    | ~ ( in @ SY656 @ SV244 )
                    | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
                     != ( ordered_pair @ SY655 @ SY656 ) ) )
                | ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
            | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
                          | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) )
                    | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
                     != ( ordered_pair @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) ) ) )
                | ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) ) )
        | ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1246]) ).

thf(1368,plain,
    ! [SV245: $i,SV85: $i,SV273: $i] :
      ( ( ( SV273
         != ( cartesian_product2 @ SV85 @ SV245 ) )
        | ~ ( ~ ! [SY657: $i] :
                  ( ! [SY631: $i,SY632: $i] :
                      ( ~ ( in @ SY631 @ SV85 )
                      | ~ ( in @ SY632 @ SV245 )
                      | ( SY657
                       != ( ordered_pair @ SY631 @ SY632 ) ) )
                  | ( in @ SY657 @ SV273 ) )
            | ~ ! [SY660: $i] :
                  ( ~ ( in @ SY660 @ SV273 )
                  | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                            | ~ ( in @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
                      | ( SY660
                       != ( ordered_pair @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1247]) ).

thf(1369,plain,
    ! [SV86: $i] :
      ( ( ( ! [SY461: $i] :
              ( ~ ( ~ ( ! [SY462: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ SY462 ) @ SV86 )
                      | ~ ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY461 @ SV86 ) @ ( sK41_SY326 @ SY461 @ SV86 ) ) @ SV86 )
                      | ( in @ ( sK40_C @ SY461 @ SV86 ) @ SY461 ) ) )
              | ( SY461
                = ( relation_dom @ SV86 ) ) ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1248]) ).

thf(1370,plain,
    ! [SV86: $i] :
      ( ( ( ! [SY463: $i] :
              ( ( SY463
               != ( relation_dom @ SV86 ) )
              | ~ ( ~ ! [SY464: $i] :
                        ( ! [SY465: $i] :
                            ~ ( in @ ( ordered_pair @ SY464 @ SY465 ) @ SV86 )
                        | ( in @ SY464 @ SY463 ) )
                  | ~ ! [SY466: $i] :
                        ( ~ ( in @ SY466 @ SY463 )
                        | ( in @ ( ordered_pair @ SY466 @ ( sK39_D @ SY466 @ SY463 @ SV86 ) ) @ SV86 ) ) ) ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1249]) ).

thf(1371,plain,
    ! [SV246: $i,SV189: $i] :
      ( ( ( ~ ( in @ SV189 @ SV246 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV189 ) @ SV246 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1250]) ).

thf(1372,plain,
    ! [SV247: $i,SV190: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV190 ) @ SV247 ) )
        = $true )
      | ( ( in @ SV190 @ SV247 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1251]) ).

thf(1373,plain,
    ! [SV248: $i,SV191: $i] :
      ( ( ( ( ( set_intersection2 @ SV191 @ SV248 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV191 @ SV248 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1252]) ).

thf(1374,plain,
    ! [SV249: $i,SV192: $i] :
      ( ( ( ~ ( disjoint @ SV192 @ SV249 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV192 @ SV249 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1253]) ).

thf(1375,plain,
    ! [SV88: $i] :
      ( ( ( ! [SY467: $i] :
              ( ~ ( ~ ( ! [SY468: $i] :
                          ~ ( in @ ( ordered_pair @ SY468 @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                      | ~ ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY467 @ SV88 ) @ ( sK37_C @ SY467 @ SV88 ) ) @ SV88 )
                      | ( in @ ( sK37_C @ SY467 @ SV88 ) @ SY467 ) ) )
              | ( SY467
                = ( relation_rng @ SV88 ) ) ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1254]) ).

thf(1376,plain,
    ! [SV88: $i] :
      ( ( ( ! [SY469: $i] :
              ( ( SY469
               != ( relation_rng @ SV88 ) )
              | ~ ( ~ ! [SY470: $i] :
                        ( ! [SY471: $i] :
                            ~ ( in @ ( ordered_pair @ SY471 @ SY470 ) @ SV88 )
                        | ( in @ SY470 @ SY469 ) )
                  | ~ ! [SY472: $i] :
                        ( ~ ( in @ SY472 @ SY469 )
                        | ( in @ ( ordered_pair @ ( sK36_D @ SY472 @ SY469 @ SV88 ) @ SY472 ) @ SV88 ) ) ) ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1255]) ).

thf(1377,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                      | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                  | ~ ( ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX0 )
                          | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                      | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1256]) ).

thf(1378,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                        | ( in @ SX2 @ SX1 ) )
                  | ~ ! [SX2: $i] :
                        ( ~ ( in @ SX2 @ SX1 )
                        | ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1257]) ).

thf(1379,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ( SX1 = empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1258]) ).

thf(1380,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1 != empty_set )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1259]) ).

thf(1381,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                      | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                       != SV89 ) )
                  | ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                      | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                       != SV250 ) ) )
            | ~ ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                  = SV89 )
                | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                  = SV250 ) ) )
        | ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1260]) ).

thf(1382,plain,
    ! [SV251: $i,SV89: $i,SV275: $i] :
      ( ( ( SV275
         != ( unordered_pair @ SV89 @ SV251 ) )
        | ~ ( ~ ! [SY661: $i] :
                  ( ~ ( in @ SY661 @ SV275 )
                  | ( SY661 = SV89 )
                  | ( SY661 = SV251 ) )
            | ~ ~ ( ~ ! [SY662: $i] :
                        ( ( SY662 != SV89 )
                        | ( in @ SY662 @ SV275 ) )
                  | ~ ! [SY663: $i] :
                        ( ( SY663 != SV251 )
                        | ( in @ SY663 @ SV275 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1261]) ).

thf(1383,plain,
    ! [SV252: $i,SV193: $i] :
      ( ( ( ( ( set_difference @ SV193 @ ( singleton @ SV252 ) )
           != SV193 ) )
        = $true )
      | ( ( ~ ( in @ SV252 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1262]) ).

thf(1384,plain,
    ! [SV194: $i,SV253: $i] :
      ( ( ( in @ SV253 @ SV194 )
        = $true )
      | ( ( ( set_difference @ SV194 @ ( singleton @ SV253 ) )
          = SV194 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1263]) ).

thf(1385,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1264]) ).

thf(1386,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( in @ SX1 @ SX0 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1265]) ).

thf(1387,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( empty @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1266]) ).

thf(1388,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( empty @ SX1 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1267]) ).

thf(1389,plain,
    ! [SV90: $i,SV195: $i] :
      ( ( ( relation @ SV195 )
        = $false )
      | ( ( ~ ( ~ ! [SY579: $i] :
                    ( ~ ( relation @ SY579 )
                    | ~ ( ~ ( ! [SY580: $i] :
                                ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ SY580 ) @ SV90 )
                                | ~ ( in @ ( ordered_pair @ SY580 @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                            | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) )
                        | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) ) @ SV90 )
                                | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                            | ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) ) )
                    | ( SY579
                      = ( relation_composition @ SV90 @ SV195 ) ) )
              | ~ ! [SY581: $i] :
                    ( ~ ( relation @ SY581 )
                    | ( SY581
                     != ( relation_composition @ SV90 @ SV195 ) )
                    | ~ ( ~ ! [SY582: $i,SY583: $i] :
                              ( ! [SY584: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY582 @ SY584 ) @ SV90 )
                                  | ~ ( in @ ( ordered_pair @ SY584 @ SY583 ) @ SV195 ) )
                              | ( in @ ( ordered_pair @ SY582 @ SY583 ) @ SY581 ) )
                        | ~ ! [SY585: $i,SY586: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY585 @ SY586 ) @ SY581 )
                              | ~ ( ~ ( in @ ( ordered_pair @ SY585 @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) ) @ SV90 )
                                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) @ SY586 ) @ SV195 ) ) ) ) ) ) )
        = $true )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1268]) ).

thf(1390,plain,
    ! [SV196: $i] :
      ( ( ( empty @ SV196 )
        = $false )
      | ( ( empty @ ( relation_dom @ SV196 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1269]) ).

thf(1391,plain,
    ! [SV197: $i] :
      ( ( ( empty @ SV197 )
        = $false )
      | ( ( relation @ ( relation_dom @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1270]) ).

thf(1392,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
                  | ~ ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) )
              | ~ ( ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
                  | ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) ) ) )
        = $true )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1271]) ).

thf(1393,plain,
    ! [SV199: $i,SV255: $i] :
      ( ( ( ( SV255
           != ( powerset @ SV199 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY639: $i] :
                    ( ~ ( in @ SY639 @ SV255 )
                    | ( subset @ SY639 @ SV199 ) )
              | ~ ! [SY640: $i] :
                    ( ~ ( subset @ SY640 @ SV199 )
                    | ( in @ SY640 @ SV255 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1272]) ).

thf(1394,plain,
    ! [SV91: $i] :
      ( ( ( ! [SY489: $i] :
              ( ~ ( relation @ SY489 )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                      | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY489 @ SV91 ) @ ( sK14_SY310 @ SY489 @ SV91 ) ) @ SY489 )
                      | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY489 @ SV91 ) @ ( sK13_C @ SY489 @ SV91 ) ) @ SV91 ) ) )
              | ( SY489
                = ( relation_inverse @ SV91 ) ) ) )
        = $true )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1273]) ).

thf(1395,plain,
    ! [SV91: $i] :
      ( ( ( ! [SY490: $i] :
              ( ~ ( relation @ SY490 )
              | ( SY490
               != ( relation_inverse @ SV91 ) )
              | ~ ( ~ ! [SY491: $i,SY492: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY491 @ SY492 ) @ SY490 )
                        | ( in @ ( ordered_pair @ SY492 @ SY491 ) @ SV91 ) )
                  | ~ ! [SY493: $i,SY494: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY494 @ SY493 ) @ SV91 )
                        | ( in @ ( ordered_pair @ SY493 @ SY494 ) @ SY490 ) ) ) ) )
        = $true )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1274]) ).

thf(1396,plain,
    ! [SV256: $i,SV200: $i] :
      ( ( ( ~ ( subset @ SV200 @ ( singleton @ SV256 ) ) )
        = $true )
      | ( ( ( SV200 = empty_set )
          | ( SV200
            = ( singleton @ SV256 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1275]) ).

thf(1397,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1276]) ).

thf(1398,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1277]) ).

thf(1399,plain,
    ! [SV257: $i,SV201: $i] :
      ( ( ( ~ ( element @ SV201 @ ( powerset @ SV257 ) ) )
        = $true )
      | ( ( subset @ SV201 @ SV257 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1278]) ).

thf(1400,plain,
    ! [SV258: $i,SV202: $i] :
      ( ( ( ~ ( subset @ SV202 @ SV258 ) )
        = $true )
      | ( ( element @ SV202 @ ( powerset @ SV258 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1279]) ).

thf(1401,plain,
    ! [SV92: $i] :
      ( ( ( empty @ ( sK8_B @ SV92 ) )
        = $false )
      | ( ( empty @ SV92 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1281]) ).

thf(1402,plain,
    ! [SV259: $i,SV276: $i,SV93: $i] :
      ( ( ~ ( in @ SV93 @ SV276 )
        | ~ ( in @ SV259 @ SV276 )
        | ( subset @ ( unordered_pair @ SV93 @ SV259 ) @ SV276 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1282]) ).

thf(1403,plain,
    ! [SV93: $i] :
      ( ( ~ ! [SY497: $i,SY498: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV93 @ SY497 ) @ SY498 )
              | ( in @ SV93 @ SY498 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1283]) ).

thf(1404,plain,
    ! [SV93: $i] :
      ( ( ~ ! [SY499: $i,SY500: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV93 @ SY499 ) @ SY500 )
              | ( in @ SY499 @ SY500 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1283]) ).

thf(1405,plain,
    ! [SV260: $i,SV94: $i,SV277: $i] :
      ( ( ~ ( relation @ SV277 )
        | ~ ( in @ ( ordered_pair @ SV94 @ SV260 ) @ SV277 )
        | ( in @ SV94 @ ( relation_field @ SV277 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1284]) ).

thf(1406,plain,
    ! [SV261: $i,SV94: $i,SV278: $i] :
      ( ( ~ ( relation @ SV278 )
        | ~ ( in @ ( ordered_pair @ SV94 @ SV261 ) @ SV278 )
        | ( in @ SV261 @ ( relation_field @ SV278 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1285]) ).

thf(1407,plain,
    ! [SV204: $i] :
      ( ( ( SV204 = empty_set )
        = $false )
      | ( ( ! [SY594: $i] :
              ~ ( in @ SY594 @ SV204 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1287]) ).

thf(1408,plain,
    ! [SV279: $i,SV145: $i,SV95: $i] :
      ( ( ! [SY664: $i] :
            ( ( ordered_pair @ SV95 @ SV145 )
           != ( ordered_pair @ SV279 @ SY664 ) )
        | ( SV95 = SV279 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1288]) ).

thf(1409,plain,
    ! [SV280: $i,SV145: $i,SV95: $i] :
      ( ( ! [SY665: $i] :
            ( ( ( ordered_pair @ SV95 @ SV145 )
             != ( ordered_pair @ SV280 @ SY665 ) )
            | ( SV145 = SY665 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1289]) ).

thf(1410,plain,
    ! [SV96: $i] :
      ( ( ( ! [SY510: $i] :
              ( ~ ( relation @ SY510 )
              | ~ ( subset @ SV96 @ SY510 )
              | ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SY510 ) ) ) )
        = $true )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1290]) ).

thf(1411,plain,
    ! [SV96: $i] :
      ( ( ( ! [SY511: $i] :
              ( ~ ( relation @ SY511 )
              | ~ ( subset @ SV96 @ SY511 )
              | ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SY511 ) ) ) )
        = $true )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1291]) ).

thf(1412,plain,
    ! [SV205: $i] :
      ( ( ( ~ ! [SY595: $i,SY596: $i] :
                ( ( sK48_B @ SV205 )
               != ( ordered_pair @ SY595 @ SY596 ) )
          | ~ ( in @ ( sK48_B @ SV205 ) @ SV205 ) )
        = $false )
      | ( ( relation @ SV205 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1292]) ).

thf(1413,plain,
    ! [SV206: $i] :
      ( ( ( relation @ SV206 )
        = $false )
      | ( ( ! [SY597: $i] :
              ( ( SY597
                = ( ordered_pair @ ( sK46_C @ SY597 @ SV206 ) @ ( sK47_SY329 @ SY597 @ SV206 ) ) )
              | ~ ( in @ SY597 @ SV206 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1293]) ).

thf(1414,plain,
    ! [SV158: $i,SV7: $i] :
      ( ( ( ~ ( subset @ ( relation_rng @ SV7 ) @ ( relation_dom @ SV158 ) ) )
        = $true )
      | ( ( ( relation_dom @ ( relation_composition @ SV7 @ SV158 ) )
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV158 )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1296]) ).

thf(1415,plain,
    ! [SV159: $i,SV8: $i] :
      ( ( ( ~ ( subset @ ( relation_dom @ SV8 ) @ ( relation_rng @ SV159 ) ) )
        = $true )
      | ( ( ( relation_rng @ ( relation_composition @ SV159 @ SV8 ) )
          = ( relation_rng @ SV8 ) )
        = $true )
      | ( ( relation @ SV159 )
        = $false )
      | ( ( relation @ SV8 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1297]) ).

thf(1416,plain,
    ! [SV26: $i,SV102: $i,SV207: $i] :
      ( ( ( in @ SV207 @ SV102 )
        = $false )
      | ( ( in @ SV207 @ SV26 )
        = $true )
      | ( ( element @ SV102 @ ( powerset @ SV26 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1300]) ).

thf(1417,plain,
    ! [SV160: $i,SV146: $i,SV105: $i,SV29: $i] :
      ( ( ( subset @ SV29 @ SV105 )
        = $false )
      | ( ( ~ ( subset @ SV146 @ SV160 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV29 @ SV146 ) @ ( cartesian_product2 @ SV105 @ SV160 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1302]) ).

thf(1418,plain,
    ! [SV108: $i,SV147: $i,SV32: $i] :
      ( ( ( subset @ SV32 @ SV147 )
        = $false )
      | ( ( subset @ SV32 @ SV108 )
        = $false )
      | ( ( subset @ SV32 @ ( set_intersection2 @ SV108 @ SV147 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1303]) ).

thf(1419,plain,
    ! [SV33: $i,SV148: $i,SV109: $i] :
      ( ( ( subset @ SV109 @ SV148 )
        = $false )
      | ( ( subset @ SV33 @ SV109 )
        = $false )
      | ( ( subset @ SV33 @ SV148 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1304]) ).

thf(1420,plain,
    ! [SV149: $i,SV120: $i,SV44: $i] :
      ( ( ( subset @ SV44 @ SV120 )
        = $false )
      | ( ( disjoint @ SV120 @ SV149 )
        = $false )
      | ( ( disjoint @ SV44 @ SV149 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1305]) ).

thf(1421,plain,
    ! [SV48: $i,SV123: $i,SV150: $i] :
      ( ( ( subset @ SV150 @ SV123 )
        = $false )
      | ( ( subset @ SV48 @ SV123 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV48 @ SV150 ) @ SV123 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1306]) ).

thf(1422,plain,
    ! [SV154: $i,SV137: $i,SV70: $i] :
      ( ( ( in @ SV70 @ SV137 )
        = $false )
      | ( ( element @ SV137 @ ( powerset @ SV154 ) )
        = $false )
      | ( ( element @ SV70 @ SV154 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1307]) ).

thf(1423,plain,
    ! [SV155: $i,SV138: $i,SV71: $i] :
      ( ( ( in @ SV71 @ SV138 )
        = $false )
      | ( ( element @ SV138 @ ( powerset @ SV155 ) )
        = $false )
      | ( ( ~ ( empty @ SV155 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1308]) ).

thf(1424,plain,
    ! [SV211: $i,SV162: $i] :
      ( ( ( in @ SV162 @ SV211 )
        = $false )
      | ( ( subset @ ( singleton @ SV162 ) @ SV211 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1310]) ).

thf(1425,plain,
    ! [SV212: $i,SV163: $i] :
      ( ( ( subset @ ( singleton @ SV163 ) @ SV212 )
        = $false )
      | ( ( in @ SV163 @ SV212 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1311]) ).

thf(1426,plain,
    ! [SV213: $i,SV164: $i] :
      ( ( ( ~ ( subset @ SV164 @ SV213 ) )
        = $true )
      | ( ( ~ ( subset @ SV213 @ SV164 ) )
        = $true )
      | ( ( SV164 = SV213 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1312]) ).

thf(1427,plain,
    ! [SV281: $i] :
      ( ( ! [SY666: $i] :
            ( ( SV281 != SY666 )
            | ( subset @ SV281 @ SY666 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1313]) ).

thf(1428,plain,
    ! [SV282: $i] :
      ( ( ! [SY667: $i] :
            ( ( SV282 != SY667 )
            | ( subset @ SY667 @ SV282 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1314]) ).

thf(1429,plain,
    ! [SV214: $i,SV165: $i] :
      ( ( ( SV165 = SV214 )
        = $true )
      | ( ( ~ ( subset @ SV165 @ SV214 ) )
        = $true )
      | ( ( proper_subset @ SV165 @ SV214 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1315]) ).

thf(1430,plain,
    ! [SV283: $i] :
      ( ( ! [SY668: $i] :
            ( ~ ( proper_subset @ SV283 @ SY668 )
            | ( SV283 != SY668 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1316]) ).

thf(1431,plain,
    ! [SV284: $i] :
      ( ( ! [SY669: $i] :
            ( ~ ( proper_subset @ SV284 @ SY669 )
            | ( subset @ SV284 @ SY669 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1317]) ).

thf(1432,plain,
    ! [SV216: $i,SV167: $i,SV285: $i] :
      ( ( ( ~ ( in @ SV285 @ ( set_intersection2 @ SV167 @ SV216 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV167 @ SV216 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1319]) ).

thf(1433,plain,
    ! [SV74: $i,SV141: $i] :
      ( ( ( in @ ( sK33_C @ SV141 @ SV74 ) @ SV141 )
        = $false )
      | ( ( element @ SV74 @ ( powerset @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1321]) ).

thf(1434,plain,
    ! [SV286: $i,SV142: $i,SV262: $i,SV75: $i] :
      ( ( ~ ( in @ SV75 @ SV262 )
        | ~ ( in @ SV142 @ SV286 )
        | ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV262 @ SV286 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1322]) ).

thf(1435,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ~ ! [SY528: $i] :
              ( ! [SY529: $i] :
                  ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY528 @ SY529 ) )
              | ( in @ SV75 @ SY528 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1323]) ).

thf(1436,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ~ ! [SY530: $i,SY531: $i] :
              ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY530 @ SY531 ) )
              | ( in @ SV142 @ SY531 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1323]) ).

thf(1437,plain,
    ! [SV217: $i,SV76: $i] :
      ( ( ( subset @ SV76 @ SV217 )
        = $false )
      | ( ( ! [SY599: $i] : ( subset @ ( cartesian_product2 @ SV76 @ SY599 ) @ ( cartesian_product2 @ SV217 @ SY599 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1324]) ).

thf(1438,plain,
    ! [SV218: $i,SV76: $i] :
      ( ( ( subset @ SV76 @ SV218 )
        = $false )
      | ( ( ! [SY600: $i] : ( subset @ ( cartesian_product2 @ SY600 @ SV76 ) @ ( cartesian_product2 @ SY600 @ SV218 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1325]) ).

thf(1439,plain,
    ! [SV219: $i,SV168: $i] :
      ( ( ( ( set_difference @ SV168 @ SV219 )
          = SV168 )
        = $false )
      | ( ( disjoint @ SV168 @ SV219 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1326]) ).

thf(1440,plain,
    ! [SV220: $i,SV169: $i] :
      ( ( ( disjoint @ SV169 @ SV220 )
        = $false )
      | ( ( ( set_difference @ SV169 @ SV220 )
          = SV169 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1327]) ).

thf(1441,plain,
    ! [SV221: $i,SV77: $i,SV263: $i] :
      ( ( ( ~ ( relation @ SV263 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV77 @ SV221 ) @ SV263 )
          | ( in @ SV77 @ ( relation_dom @ SV263 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1328]) ).

thf(1442,plain,
    ! [SV222: $i,SV77: $i,SV264: $i] :
      ( ( ( ~ ( relation @ SV264 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV77 @ SV222 ) @ SV264 )
          | ( in @ SV222 @ ( relation_rng @ SV264 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1329]) ).

thf(1443,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 ) )
        = $true )
      | ( ( ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) )
        = $true )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1332]) ).

thf(1444,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
        = $true )
      | ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 )
        = $true )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1333]) ).

thf(1445,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                        | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) )
                    | ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                        | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) )
              | ~ ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                  | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 )
                  | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1334]) ).

thf(1446,plain,
    ! [SV224: $i,SV79: $i,SV266: $i] :
      ( ( ( ( SV266
           != ( set_union2 @ SV79 @ SV224 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY645: $i] :
                    ( ~ ( in @ SY645 @ SV266 )
                    | ( in @ SY645 @ SV79 )
                    | ( in @ SY645 @ SV224 ) )
              | ~ ~ ( ~ ! [SY646: $i] :
                          ( ~ ( in @ SY646 @ SV79 )
                          | ( in @ SY646 @ SV266 ) )
                    | ~ ! [SY647: $i] :
                          ( ~ ( in @ SY647 @ SV224 )
                          | ( in @ SY647 @ SV266 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1335]) ).

thf(1447,plain,
    ! [SV172: $i,SV225: $i] :
      ( ( ( ~ ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV172 )
          | ~ ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV225 ) )
        = $false )
      | ( ( disjoint @ SV172 @ SV225 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1336]) ).

thf(1448,plain,
    ! [SV226: $i,SV173: $i,SV287: $i] :
      ( ( ( ~ ( in @ SV287 @ SV173 )
          | ~ ( in @ SV287 @ SV226 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV173 @ SV226 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1337]) ).

thf(1449,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
                  | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
                  | ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
              | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
                        | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
                    | ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
                        | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) ) ) ) )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1338]) ).

thf(1450,plain,
    ! [SV228: $i,SV80: $i,SV268: $i] :
      ( ( ( ( SV268
           != ( set_difference @ SV80 @ SV228 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY648: $i] :
                    ( ~ ( in @ SY648 @ SV80 )
                    | ( in @ SY648 @ SV228 )
                    | ( in @ SY648 @ SV268 ) )
              | ~ ~ ( ~ ! [SY649: $i] :
                          ( ~ ( in @ SY649 @ SV268 )
                          | ( in @ SY649 @ SV80 ) )
                    | ~ ! [SY650: $i] :
                          ( ~ ( in @ SY650 @ SV268 )
                          | ~ ( in @ SY650 @ SV228 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1339]) ).

thf(1451,plain,
    ! [SV229: $i,SV174: $i] :
      ( ( ( ( set_difference @ SV174 @ SV229 )
          = empty_set )
        = $false )
      | ( ( subset @ SV174 @ SV229 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1340]) ).

thf(1452,plain,
    ! [SV230: $i,SV175: $i] :
      ( ( ( subset @ SV175 @ SV230 )
        = $false )
      | ( ( ( set_difference @ SV175 @ SV230 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1341]) ).

thf(1453,plain,
    ! [SV176: $i,SV231: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV176 )
          | ~ ~ ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV231 ) )
        = $false )
      | ( ( subset @ SV176 @ SV231 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1342]) ).

thf(1454,plain,
    ! [SV232: $i,SV177: $i] :
      ( ( ( subset @ SV177 @ SV232 )
        = $false )
      | ( ( ! [SY614: $i] :
              ( ~ ( in @ SY614 @ SV177 )
              | ( in @ SY614 @ SV232 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1343]) ).

thf(1455,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
                  | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
                  | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
              | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
                        | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
                    | ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
                        | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) ) ) ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1344]) ).

thf(1456,plain,
    ! [SV234: $i,SV81: $i,SV270: $i] :
      ( ( ( ( SV270
           != ( set_intersection2 @ SV81 @ SV234 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY651: $i] :
                    ( ~ ( in @ SY651 @ SV81 )
                    | ~ ( in @ SY651 @ SV234 )
                    | ( in @ SY651 @ SV270 ) )
              | ~ ~ ( ~ ! [SY652: $i] :
                          ( ~ ( in @ SY652 @ SV270 )
                          | ( in @ SY652 @ SV81 ) )
                    | ~ ! [SY653: $i] :
                          ( ~ ( in @ SY653 @ SV270 )
                          | ( in @ SY653 @ SV234 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1345]) ).

thf(1457,plain,
    ! [SV235: $i,SV178: $i] :
      ( ( ( ( set_difference @ SV178 @ SV235 )
          = empty_set )
        = $false )
      | ( ( subset @ SV178 @ SV235 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1346]) ).

thf(1458,plain,
    ! [SV236: $i,SV179: $i] :
      ( ( ( subset @ SV179 @ SV236 )
        = $false )
      | ( ( ( set_difference @ SV179 @ SV236 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1347]) ).

thf(1459,plain,
    ! [SV82: $i,SV237: $i] :
      ( ( ( ~ ( subset @ SV237 @ ( sK32_B @ SV82 ) ) )
        = $true )
      | ( ( are_equipotent @ SV237 @ ( sK32_B @ SV82 ) )
        = $true )
      | ( ( in @ SV237 @ ( sK32_B @ SV82 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1348]) ).

thf(1460,plain,
    ! [SV82: $i] :
      ( ( ! [SY436: $i] :
            ( ~ ( in @ SY436 @ ( sK32_B @ SV82 ) )
            | ( in @ ( powerset @ SY436 ) @ ( sK32_B @ SV82 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1349]) ).

thf(1461,plain,
    ! [SV82: $i] :
      ( ( ~ ( ~ ! [SY437: $i,SY438: $i] :
                  ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
                  | ~ ( subset @ SY438 @ SY437 )
                  | ( in @ SY438 @ ( sK32_B @ SV82 ) ) )
            | ~ ( in @ SV82 @ ( sK32_B @ SV82 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1350]) ).

thf(1462,plain,
    ! [SV288: $i,SV144: $i,SV271: $i,SV83: $i] :
      ( ( ~ ( in @ SV83 @ SV271 )
        | ~ ( in @ SV144 @ SV288 )
        | ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV271 @ SV288 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1351]) ).

thf(1463,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ~ ! [SY534: $i] :
              ( ! [SY535: $i] :
                  ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY534 @ SY535 ) )
              | ( in @ SV83 @ SY534 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1352]) ).

thf(1464,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ~ ! [SY536: $i,SY537: $i] :
              ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY536 @ SY537 ) )
              | ( in @ SV144 @ SY537 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1352]) ).

thf(1465,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( ~ ( ( ( sK29_C @ SV238 @ SV180 )
               != SV180 )
              | ~ ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) )
          | ~ ( ( ( sK29_C @ SV238 @ SV180 )
                = SV180 )
              | ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) ) )
        = $false )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1353]) ).

thf(1466,plain,
    ! [SV181: $i,SV239: $i] :
      ( ( ( SV239
          = ( singleton @ SV181 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY620: $i] :
                    ( ( SY620 != SV181 )
                    | ( in @ SY620 @ SV239 ) )
              | ~ ! [SY621: $i] :
                    ( ~ ( in @ SY621 @ SV239 )
                    | ( SY621 = SV181 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1354]) ).

thf(1467,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ~ ( ! [SY622: $i] :
                  ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SY622 )
                  | ~ ( in @ SY622 @ SV182 ) )
              | ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
          | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ ( sK18_SY312 @ SV240 @ SV182 ) )
                  | ~ ( in @ ( sK18_SY312 @ SV240 @ SV182 ) @ SV182 ) )
              | ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) ) )
        = $false )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1355]) ).

thf(1468,plain,
    ! [SV183: $i,SV241: $i] :
      ( ( ( SV241
          = ( union @ SV183 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY623: $i] :
                    ( ! [SY570: $i] :
                        ( ~ ( in @ SY623 @ SY570 )
                        | ~ ( in @ SY570 @ SV183 ) )
                    | ( in @ SY623 @ SV241 ) )
              | ~ ! [SY625: $i] :
                    ( ~ ( in @ SY625 @ SV241 )
                    | ~ ( ~ ( in @ SY625 @ ( sK16_D @ SY625 @ SV241 @ SV183 ) )
                        | ~ ( in @ ( sK16_D @ SY625 @ SV241 @ SV183 ) @ SV183 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1356]) ).

thf(1469,plain,
    ! [SV184: $i] :
      ( ( ( ( ( relation_dom @ SV184 )
           != empty_set ) )
        = $true )
      | ( ( SV184 = empty_set )
        = $true )
      | ( ( relation @ SV184 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1357]) ).

thf(1470,plain,
    ! [SV185: $i] :
      ( ( ( ( ( relation_rng @ SV185 )
           != empty_set ) )
        = $true )
      | ( ( SV185 = empty_set )
        = $true )
      | ( ( relation @ SV185 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1358]) ).

thf(1471,plain,
    ! [SV242: $i,SV186: $i] :
      ( ( ( subset @ SV186 @ ( singleton @ SV242 ) )
        = $false )
      | ( ( ( SV186 = empty_set )
          | ( SV186
            = ( singleton @ SV242 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1359]) ).

thf(1472,plain,
    ! [SV289: $i] :
      ( ( ( SV289 != empty_set )
        | ! [SY670: $i] : ( subset @ SV289 @ ( singleton @ SY670 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1360]) ).

thf(1473,plain,
    ! [SV290: $i] :
      ( ( ! [SY671: $i] :
            ( ( SV290
             != ( singleton @ SY671 ) )
            | ( subset @ SV290 @ ( singleton @ SY671 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1361]) ).

thf(1474,plain,
    ! [SV84: $i,SV243: $i] :
      ( ( ( ~ ( subset @ SV243 @ ( sK2_B @ SV84 ) ) )
        = $true )
      | ( ( are_equipotent @ SV243 @ ( sK2_B @ SV84 ) )
        = $true )
      | ( ( in @ SV243 @ ( sK2_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1362]) ).

thf(1475,plain,
    ! [SV84: $i] :
      ( ( ! [SY447: $i] :
            ( ~ ( ~ ! [SY448: $i] :
                      ( ~ ( subset @ SY448 @ SY447 )
                      | ( in @ SY448 @ ( sK3_SY300 @ SY447 @ SV84 ) ) )
                | ~ ( in @ ( sK3_SY300 @ SY447 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
            | ~ ( in @ SY447 @ ( sK2_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1363]) ).

thf(1476,plain,
    ! [SV84: $i] :
      ( ( ~ ( ~ ! [SY449: $i,SY450: $i] :
                  ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
                  | ~ ( subset @ SY450 @ SY449 )
                  | ( in @ SY450 @ ( sK2_B @ SV84 ) ) )
            | ~ ( in @ SV84 @ ( sK2_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1364]) ).

thf(1477,plain,
    ! [SV272: $i,SV244: $i,SV85: $i] :
      ( ( ( ~ ( ~ ( ! [SY655: $i,SY656: $i] :
                      ( ~ ( in @ SY655 @ SV85 )
                      | ~ ( in @ SY656 @ SV244 )
                      | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
                       != ( ordered_pair @ SY655 @ SY656 ) ) )
                  | ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
              | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
                            | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) )
                      | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
                       != ( ordered_pair @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) ) ) )
                  | ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) ) ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1367]) ).

thf(1478,plain,
    ! [SV245: $i,SV85: $i,SV273: $i] :
      ( ( ( ( SV273
           != ( cartesian_product2 @ SV85 @ SV245 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY657: $i] :
                    ( ! [SY631: $i,SY632: $i] :
                        ( ~ ( in @ SY631 @ SV85 )
                        | ~ ( in @ SY632 @ SV245 )
                        | ( SY657
                         != ( ordered_pair @ SY631 @ SY632 ) ) )
                    | ( in @ SY657 @ SV273 ) )
              | ~ ! [SY660: $i] :
                    ( ~ ( in @ SY660 @ SV273 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                              | ~ ( in @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
                        | ( SY660
                         != ( ordered_pair @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1368]) ).

thf(1479,plain,
    ! [SV86: $i,SV291: $i] :
      ( ( ( ~ ( ~ ( ! [SY672: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ SY672 ) @ SV86 )
                  | ~ ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ ( sK41_SY326 @ SV291 @ SV86 ) ) @ SV86 )
                  | ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) ) )
          | ( SV291
            = ( relation_dom @ SV86 ) ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1369]) ).

thf(1480,plain,
    ! [SV86: $i,SV292: $i] :
      ( ( ( ( SV292
           != ( relation_dom @ SV86 ) )
          | ~ ( ~ ! [SY673: $i] :
                    ( ! [SY465: $i] :
                        ~ ( in @ ( ordered_pair @ SY673 @ SY465 ) @ SV86 )
                    | ( in @ SY673 @ SV292 ) )
              | ~ ! [SY675: $i] :
                    ( ~ ( in @ SY675 @ SV292 )
                    | ( in @ ( ordered_pair @ SY675 @ ( sK39_D @ SY675 @ SV292 @ SV86 ) ) @ SV86 ) ) ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1370]) ).

thf(1481,plain,
    ! [SV246: $i,SV189: $i] :
      ( ( ( in @ SV189 @ SV246 )
        = $false )
      | ( ( subset @ ( singleton @ SV189 ) @ SV246 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1371]) ).

thf(1482,plain,
    ! [SV247: $i,SV190: $i] :
      ( ( ( subset @ ( singleton @ SV190 ) @ SV247 )
        = $false )
      | ( ( in @ SV190 @ SV247 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1372]) ).

thf(1483,plain,
    ! [SV248: $i,SV191: $i] :
      ( ( ( ( set_intersection2 @ SV191 @ SV248 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV191 @ SV248 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1373]) ).

thf(1484,plain,
    ! [SV249: $i,SV192: $i] :
      ( ( ( disjoint @ SV192 @ SV249 )
        = $false )
      | ( ( ( set_intersection2 @ SV192 @ SV249 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1374]) ).

thf(1485,plain,
    ! [SV88: $i,SV293: $i] :
      ( ( ( ~ ( ~ ( ! [SY676: $i] :
                      ~ ( in @ ( ordered_pair @ SY676 @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
                  | ~ ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV293 @ SV88 ) @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
                  | ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) ) )
          | ( SV293
            = ( relation_rng @ SV88 ) ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1375]) ).

thf(1486,plain,
    ! [SV88: $i,SV294: $i] :
      ( ( ( ( SV294
           != ( relation_rng @ SV88 ) )
          | ~ ( ~ ! [SY677: $i] :
                    ( ! [SY471: $i] :
                        ~ ( in @ ( ordered_pair @ SY471 @ SY677 ) @ SV88 )
                    | ( in @ SY677 @ SV294 ) )
              | ~ ! [SY679: $i] :
                    ( ~ ( in @ SY679 @ SV294 )
                    | ( in @ ( ordered_pair @ ( sK36_D @ SY679 @ SV294 @ SV88 ) @ SY679 ) @ SV88 ) ) ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1376]) ).

thf(1487,plain,
    ! [SV295: $i] :
      ( ( ( SV295 = empty_set )
        | ! [SY680: $i] :
            ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SY680 @ SV295 ) @ SV295 )
                        | ~ ~ ( in @ ( sK44_C @ SY680 @ SV295 ) @ ( sK45_SY327 @ SY680 @ SV295 ) ) )
                    | ~ ( in @ ( sK44_C @ SY680 @ SV295 ) @ SY680 ) )
                | ~ ( ! [SY681: $i] :
                        ( ~ ( in @ SY681 @ SV295 )
                        | ( in @ ( sK44_C @ SY680 @ SV295 ) @ SY681 ) )
                    | ( in @ ( sK44_C @ SY680 @ SV295 ) @ SY680 ) ) )
            | ( SY680
              = ( set_meet @ SV295 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1377]) ).

thf(1488,plain,
    ! [SV296: $i] :
      ( ( ( SV296 = empty_set )
        | ! [SY682: $i] :
            ( ( SY682
             != ( set_meet @ SV296 ) )
            | ~ ( ~ ! [SY683: $i] :
                      ( ~ ( ~ ( in @ ( sK43_D @ SY683 @ SY682 @ SV296 ) @ SV296 )
                          | ~ ~ ( in @ SY683 @ ( sK43_D @ SY683 @ SY682 @ SV296 ) ) )
                      | ( in @ SY683 @ SY682 ) )
                | ~ ! [SY684: $i] :
                      ( ~ ( in @ SY684 @ SY682 )
                      | ! [SY685: $i] :
                          ( ~ ( in @ SY685 @ SV296 )
                          | ( in @ SY684 @ SY685 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1378]) ).

thf(1489,plain,
    ! [SV297: $i] :
      ( ( ( SV297 != empty_set )
        | ! [SY686: $i] :
            ( ( SY686
             != ( set_meet @ SV297 ) )
            | ( SY686 = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1379]) ).

thf(1490,plain,
    ! [SV298: $i] :
      ( ( ( SV298 != empty_set )
        | ! [SY687: $i] :
            ( ( SY687 != empty_set )
            | ( SY687
              = ( set_meet @ SV298 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1380]) ).

thf(1491,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                        | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                         != SV89 ) )
                    | ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                        | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                         != SV250 ) ) )
              | ~ ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                  | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                    = SV89 )
                  | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                    = SV250 ) ) ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1381]) ).

thf(1492,plain,
    ! [SV251: $i,SV89: $i,SV275: $i] :
      ( ( ( ( SV275
           != ( unordered_pair @ SV89 @ SV251 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY661: $i] :
                    ( ~ ( in @ SY661 @ SV275 )
                    | ( SY661 = SV89 )
                    | ( SY661 = SV251 ) )
              | ~ ~ ( ~ ! [SY662: $i] :
                          ( ( SY662 != SV89 )
                          | ( in @ SY662 @ SV275 ) )
                    | ~ ! [SY663: $i] :
                          ( ( SY663 != SV251 )
                          | ( in @ SY663 @ SV275 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1382]) ).

thf(1493,plain,
    ! [SV252: $i,SV193: $i] :
      ( ( ( ( set_difference @ SV193 @ ( singleton @ SV252 ) )
          = SV193 )
        = $false )
      | ( ( ~ ( in @ SV252 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1383]) ).

thf(1494,plain,
    ! [SV299: $i] :
      ( ( ( empty @ SV299 )
        | ! [SY688: $i] :
            ( ~ ( element @ SY688 @ SV299 )
            | ( in @ SY688 @ SV299 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1385]) ).

thf(1495,plain,
    ! [SV300: $i] :
      ( ( ( empty @ SV300 )
        | ! [SY689: $i] :
            ( ~ ( in @ SY689 @ SV300 )
            | ( element @ SY689 @ SV300 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1386]) ).

thf(1496,plain,
    ! [SV301: $i] :
      ( ( ~ ( empty @ SV301 )
        | ! [SY690: $i] :
            ( ~ ( element @ SY690 @ SV301 )
            | ( empty @ SY690 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1387]) ).

thf(1497,plain,
    ! [SV302: $i] :
      ( ( ~ ( empty @ SV302 )
        | ! [SY691: $i] :
            ( ~ ( empty @ SY691 )
            | ( element @ SY691 @ SV302 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1388]) ).

thf(1498,plain,
    ! [SV90: $i,SV195: $i] :
      ( ( ( ~ ! [SY579: $i] :
                ( ~ ( relation @ SY579 )
                | ~ ( ~ ( ! [SY580: $i] :
                            ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ SY580 ) @ SV90 )
                            | ~ ( in @ ( ordered_pair @ SY580 @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                        | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) ) @ SV90 )
                            | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                        | ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) ) )
                | ( SY579
                  = ( relation_composition @ SV90 @ SV195 ) ) )
          | ~ ! [SY581: $i] :
                ( ~ ( relation @ SY581 )
                | ( SY581
                 != ( relation_composition @ SV90 @ SV195 ) )
                | ~ ( ~ ! [SY582: $i,SY583: $i] :
                          ( ! [SY584: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY582 @ SY584 ) @ SV90 )
                              | ~ ( in @ ( ordered_pair @ SY584 @ SY583 ) @ SV195 ) )
                          | ( in @ ( ordered_pair @ SY582 @ SY583 ) @ SY581 ) )
                    | ~ ! [SY585: $i,SY586: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY585 @ SY586 ) @ SY581 )
                          | ~ ( ~ ( in @ ( ordered_pair @ SY585 @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) ) @ SV90 )
                              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) @ SY586 ) @ SV195 ) ) ) ) ) )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1389]) ).

thf(1499,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
              | ~ ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) )
          | ~ ( ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
              | ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) ) )
        = $false )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1392]) ).

thf(1500,plain,
    ! [SV199: $i,SV255: $i] :
      ( ( ( SV255
          = ( powerset @ SV199 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY639: $i] :
                    ( ~ ( in @ SY639 @ SV255 )
                    | ( subset @ SY639 @ SV199 ) )
              | ~ ! [SY640: $i] :
                    ( ~ ( subset @ SY640 @ SV199 )
                    | ( in @ SY640 @ SV255 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1393]) ).

thf(1501,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( ~ ( relation @ SV303 )
          | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
                  | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
                  | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) ) )
          | ( SV303
            = ( relation_inverse @ SV91 ) ) )
        = $true )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1394]) ).

thf(1502,plain,
    ! [SV91: $i,SV304: $i] :
      ( ( ( ~ ( relation @ SV304 )
          | ( SV304
           != ( relation_inverse @ SV91 ) )
          | ~ ( ~ ! [SY692: $i,SY693: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY692 @ SY693 ) @ SV304 )
                    | ( in @ ( ordered_pair @ SY693 @ SY692 ) @ SV91 ) )
              | ~ ! [SY694: $i,SY695: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY695 @ SY694 ) @ SV91 )
                    | ( in @ ( ordered_pair @ SY694 @ SY695 ) @ SV304 ) ) ) )
        = $true )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1395]) ).

thf(1503,plain,
    ! [SV256: $i,SV200: $i] :
      ( ( ( subset @ SV200 @ ( singleton @ SV256 ) )
        = $false )
      | ( ( ( SV200 = empty_set )
          | ( SV200
            = ( singleton @ SV256 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1396]) ).

thf(1504,plain,
    ! [SV305: $i] :
      ( ( ( SV305 != empty_set )
        | ! [SY696: $i] : ( subset @ SV305 @ ( singleton @ SY696 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1397]) ).

thf(1505,plain,
    ! [SV306: $i] :
      ( ( ! [SY697: $i] :
            ( ( SV306
             != ( singleton @ SY697 ) )
            | ( subset @ SV306 @ ( singleton @ SY697 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1398]) ).

thf(1506,plain,
    ! [SV257: $i,SV201: $i] :
      ( ( ( element @ SV201 @ ( powerset @ SV257 ) )
        = $false )
      | ( ( subset @ SV201 @ SV257 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1399]) ).

thf(1507,plain,
    ! [SV258: $i,SV202: $i] :
      ( ( ( subset @ SV202 @ SV258 )
        = $false )
      | ( ( element @ SV202 @ ( powerset @ SV258 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1400]) ).

thf(1508,plain,
    ! [SV259: $i,SV276: $i,SV93: $i] :
      ( ( ( ~ ( in @ SV93 @ SV276 )
          | ~ ( in @ SV259 @ SV276 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV93 @ SV259 ) @ SV276 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1402]) ).

thf(1509,plain,
    ! [SV93: $i] :
      ( ( ! [SY497: $i,SY498: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV93 @ SY497 ) @ SY498 )
            | ( in @ SV93 @ SY498 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1403]) ).

thf(1510,plain,
    ! [SV93: $i] :
      ( ( ! [SY499: $i,SY500: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV93 @ SY499 ) @ SY500 )
            | ( in @ SY499 @ SY500 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1404]) ).

thf(1511,plain,
    ! [SV260: $i,SV94: $i,SV277: $i] :
      ( ( ( ~ ( relation @ SV277 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV94 @ SV260 ) @ SV277 )
          | ( in @ SV94 @ ( relation_field @ SV277 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1405]) ).

thf(1512,plain,
    ! [SV261: $i,SV94: $i,SV278: $i] :
      ( ( ( ~ ( relation @ SV278 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV94 @ SV261 ) @ SV278 )
          | ( in @ SV261 @ ( relation_field @ SV278 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1406]) ).

thf(1513,plain,
    ! [SV204: $i,SV307: $i] :
      ( ( ( ~ ( in @ SV307 @ SV204 ) )
        = $true )
      | ( ( SV204 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1407]) ).

thf(1514,plain,
    ! [SV279: $i,SV145: $i,SV95: $i] :
      ( ( ( ! [SY664: $i] :
              ( ( ordered_pair @ SV95 @ SV145 )
             != ( ordered_pair @ SV279 @ SY664 ) ) )
        = $true )
      | ( ( SV95 = SV279 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1408]) ).

thf(1515,plain,
    ! [SV308: $i,SV280: $i,SV145: $i,SV95: $i] :
      ( ( ( ( ordered_pair @ SV95 @ SV145 )
         != ( ordered_pair @ SV280 @ SV308 ) )
        | ( SV145 = SV308 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1409]) ).

thf(1516,plain,
    ! [SV96: $i,SV309: $i] :
      ( ( ( ~ ( relation @ SV309 )
          | ~ ( subset @ SV96 @ SV309 )
          | ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SV309 ) ) )
        = $true )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1410]) ).

thf(1517,plain,
    ! [SV96: $i,SV310: $i] :
      ( ( ( ~ ( relation @ SV310 )
          | ~ ( subset @ SV96 @ SV310 )
          | ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SV310 ) ) )
        = $true )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1411]) ).

thf(1518,plain,
    ! [SV205: $i] :
      ( ( ( ~ ! [SY595: $i,SY596: $i] :
                ( ( sK48_B @ SV205 )
               != ( ordered_pair @ SY595 @ SY596 ) ) )
        = $false )
      | ( ( relation @ SV205 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1412]) ).

thf(1519,plain,
    ! [SV205: $i] :
      ( ( ( ~ ( in @ ( sK48_B @ SV205 ) @ SV205 ) )
        = $false )
      | ( ( relation @ SV205 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1412]) ).

thf(1520,plain,
    ! [SV206: $i,SV311: $i] :
      ( ( ( ( SV311
            = ( ordered_pair @ ( sK46_C @ SV311 @ SV206 ) @ ( sK47_SY329 @ SV311 @ SV206 ) ) )
          | ~ ( in @ SV311 @ SV206 ) )
        = $true )
      | ( ( relation @ SV206 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1413]) ).

thf(1521,plain,
    ! [SV158: $i,SV7: $i] :
      ( ( ( subset @ ( relation_rng @ SV7 ) @ ( relation_dom @ SV158 ) )
        = $false )
      | ( ( ( relation_dom @ ( relation_composition @ SV7 @ SV158 ) )
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV158 )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1414]) ).

thf(1522,plain,
    ! [SV159: $i,SV8: $i] :
      ( ( ( subset @ ( relation_dom @ SV8 ) @ ( relation_rng @ SV159 ) )
        = $false )
      | ( ( ( relation_rng @ ( relation_composition @ SV159 @ SV8 ) )
          = ( relation_rng @ SV8 ) )
        = $true )
      | ( ( relation @ SV159 )
        = $false )
      | ( ( relation @ SV8 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1415]) ).

thf(1523,plain,
    ! [SV105: $i,SV29: $i,SV160: $i,SV146: $i] :
      ( ( ( subset @ SV146 @ SV160 )
        = $false )
      | ( ( subset @ SV29 @ SV105 )
        = $false )
      | ( ( subset @ ( cartesian_product2 @ SV29 @ SV146 ) @ ( cartesian_product2 @ SV105 @ SV160 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1417]) ).

thf(1524,plain,
    ! [SV71: $i,SV138: $i,SV155: $i] :
      ( ( ( empty @ SV155 )
        = $false )
      | ( ( element @ SV138 @ ( powerset @ SV155 ) )
        = $false )
      | ( ( in @ SV71 @ SV138 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1423]) ).

thf(1525,plain,
    ! [SV213: $i,SV164: $i] :
      ( ( ( subset @ SV164 @ SV213 )
        = $false )
      | ( ( ~ ( subset @ SV213 @ SV164 ) )
        = $true )
      | ( ( SV164 = SV213 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1426]) ).

thf(1526,plain,
    ! [SV312: $i,SV281: $i] :
      ( ( ( SV281 != SV312 )
        | ( subset @ SV281 @ SV312 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1427]) ).

thf(1527,plain,
    ! [SV313: $i,SV282: $i] :
      ( ( ( SV282 != SV313 )
        | ( subset @ SV313 @ SV282 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1428]) ).

thf(1528,plain,
    ! [SV214: $i,SV165: $i] :
      ( ( ( subset @ SV165 @ SV214 )
        = $false )
      | ( ( SV165 = SV214 )
        = $true )
      | ( ( proper_subset @ SV165 @ SV214 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1429]) ).

thf(1529,plain,
    ! [SV314: $i,SV283: $i] :
      ( ( ~ ( proper_subset @ SV283 @ SV314 )
        | ( SV283 != SV314 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1430]) ).

thf(1530,plain,
    ! [SV315: $i,SV284: $i] :
      ( ( ~ ( proper_subset @ SV284 @ SV315 )
        | ( subset @ SV284 @ SV315 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1431]) ).

thf(1531,plain,
    ! [SV216: $i,SV167: $i,SV285: $i] :
      ( ( ( in @ SV285 @ ( set_intersection2 @ SV167 @ SV216 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV167 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1432]) ).

thf(1532,plain,
    ! [SV286: $i,SV142: $i,SV262: $i,SV75: $i] :
      ( ( ( ~ ( in @ SV75 @ SV262 )
          | ~ ( in @ SV142 @ SV286 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV262 @ SV286 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1434]) ).

thf(1533,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ! [SY528: $i] :
            ( ! [SY529: $i] :
                ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY528 @ SY529 ) )
            | ( in @ SV75 @ SY528 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1435]) ).

thf(1534,plain,
    ! [SV142: $i,SV75: $i] :
      ( ( ! [SY530: $i,SY531: $i] :
            ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SY530 @ SY531 ) )
            | ( in @ SV142 @ SY531 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1436]) ).

thf(1535,plain,
    ! [SV217: $i,SV316: $i,SV76: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV76 @ SV316 ) @ ( cartesian_product2 @ SV217 @ SV316 ) )
        = $true )
      | ( ( subset @ SV76 @ SV217 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1437]) ).

thf(1536,plain,
    ! [SV218: $i,SV76: $i,SV317: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV317 @ SV76 ) @ ( cartesian_product2 @ SV317 @ SV218 ) )
        = $true )
      | ( ( subset @ SV76 @ SV218 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1438]) ).

thf(1537,plain,
    ! [SV221: $i,SV77: $i,SV263: $i] :
      ( ( ( relation @ SV263 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV77 @ SV221 ) @ SV263 )
          | ( in @ SV77 @ ( relation_dom @ SV263 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1441]) ).

thf(1538,plain,
    ! [SV222: $i,SV77: $i,SV264: $i] :
      ( ( ( relation @ SV264 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV77 @ SV222 ) @ SV264 )
          | ( in @ SV222 @ ( relation_rng @ SV264 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1442]) ).

thf(1539,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
        = $false )
      | ( ( ~ ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 ) )
        = $true )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1443]) ).

thf(1540,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                    | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) )
                | ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                    | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) )
          | ~ ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
              | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 )
              | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1445]) ).

thf(1541,plain,
    ! [SV224: $i,SV79: $i,SV266: $i] :
      ( ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY645: $i] :
                    ( ~ ( in @ SY645 @ SV266 )
                    | ( in @ SY645 @ SV79 )
                    | ( in @ SY645 @ SV224 ) )
              | ~ ~ ( ~ ! [SY646: $i] :
                          ( ~ ( in @ SY646 @ SV79 )
                          | ( in @ SY646 @ SV266 ) )
                    | ~ ! [SY647: $i] :
                          ( ~ ( in @ SY647 @ SV224 )
                          | ( in @ SY647 @ SV266 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1446]) ).

thf(1542,plain,
    ! [SV172: $i,SV225: $i] :
      ( ( ( ~ ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV172 ) )
        = $false )
      | ( ( disjoint @ SV172 @ SV225 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1447]) ).

thf(1543,plain,
    ! [SV172: $i,SV225: $i] :
      ( ( ( ~ ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV225 ) )
        = $false )
      | ( ( disjoint @ SV172 @ SV225 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1447]) ).

thf(1544,plain,
    ! [SV226: $i,SV173: $i,SV287: $i] :
      ( ( ( ~ ( in @ SV287 @ SV173 ) )
        = $true )
      | ( ( ~ ( in @ SV287 @ SV226 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV173 @ SV226 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1448]) ).

thf(1545,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
              | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
              | ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
          | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
                    | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
                | ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
                    | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) ) ) )
        = $false )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1449]) ).

thf(1546,plain,
    ! [SV228: $i,SV80: $i,SV268: $i] :
      ( ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY648: $i] :
                    ( ~ ( in @ SY648 @ SV80 )
                    | ( in @ SY648 @ SV228 )
                    | ( in @ SY648 @ SV268 ) )
              | ~ ~ ( ~ ! [SY649: $i] :
                          ( ~ ( in @ SY649 @ SV268 )
                          | ( in @ SY649 @ SV80 ) )
                    | ~ ! [SY650: $i] :
                          ( ~ ( in @ SY650 @ SV268 )
                          | ~ ( in @ SY650 @ SV228 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1450]) ).

thf(1547,plain,
    ! [SV176: $i,SV231: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV176 ) )
        = $false )
      | ( ( subset @ SV176 @ SV231 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1453]) ).

thf(1548,plain,
    ! [SV176: $i,SV231: $i] :
      ( ( ( ~ ~ ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV231 ) )
        = $false )
      | ( ( subset @ SV176 @ SV231 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1453]) ).

thf(1549,plain,
    ! [SV232: $i,SV177: $i,SV318: $i] :
      ( ( ( ~ ( in @ SV318 @ SV177 )
          | ( in @ SV318 @ SV232 ) )
        = $true )
      | ( ( subset @ SV177 @ SV232 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1454]) ).

thf(1550,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
              | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
              | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
          | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
                    | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
                | ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
                    | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1455]) ).

thf(1551,plain,
    ! [SV234: $i,SV81: $i,SV270: $i] :
      ( ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY651: $i] :
                    ( ~ ( in @ SY651 @ SV81 )
                    | ~ ( in @ SY651 @ SV234 )
                    | ( in @ SY651 @ SV270 ) )
              | ~ ~ ( ~ ! [SY652: $i] :
                          ( ~ ( in @ SY652 @ SV270 )
                          | ( in @ SY652 @ SV81 ) )
                    | ~ ! [SY653: $i] :
                          ( ~ ( in @ SY653 @ SV270 )
                          | ( in @ SY653 @ SV234 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1456]) ).

thf(1552,plain,
    ! [SV82: $i,SV237: $i] :
      ( ( ( subset @ SV237 @ ( sK32_B @ SV82 ) )
        = $false )
      | ( ( are_equipotent @ SV237 @ ( sK32_B @ SV82 ) )
        = $true )
      | ( ( in @ SV237 @ ( sK32_B @ SV82 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1459]) ).

thf(1553,plain,
    ! [SV82: $i,SV319: $i] :
      ( ( ~ ( in @ SV319 @ ( sK32_B @ SV82 ) )
        | ( in @ ( powerset @ SV319 ) @ ( sK32_B @ SV82 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1460]) ).

thf(1554,plain,
    ! [SV82: $i] :
      ( ( ~ ! [SY437: $i,SY438: $i] :
              ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
              | ~ ( subset @ SY438 @ SY437 )
              | ( in @ SY438 @ ( sK32_B @ SV82 ) ) )
        | ~ ( in @ SV82 @ ( sK32_B @ SV82 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1461]) ).

thf(1555,plain,
    ! [SV288: $i,SV144: $i,SV271: $i,SV83: $i] :
      ( ( ( ~ ( in @ SV83 @ SV271 )
          | ~ ( in @ SV144 @ SV288 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV271 @ SV288 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1462]) ).

thf(1556,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ! [SY534: $i] :
            ( ! [SY535: $i] :
                ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY534 @ SY535 ) )
            | ( in @ SV83 @ SY534 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1463]) ).

thf(1557,plain,
    ! [SV144: $i,SV83: $i] :
      ( ( ! [SY536: $i,SY537: $i] :
            ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SY536 @ SY537 ) )
            | ( in @ SV144 @ SY537 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1464]) ).

thf(1558,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( ~ ( ( ( sK29_C @ SV238 @ SV180 )
               != SV180 )
              | ~ ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) ) )
        = $false )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1465]) ).

thf(1559,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( ~ ( ( ( sK29_C @ SV238 @ SV180 )
                = SV180 )
              | ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) ) )
        = $false )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1465]) ).

thf(1560,plain,
    ! [SV239: $i,SV181: $i] :
      ( ( ( ~ ! [SY620: $i] :
                ( ( SY620 != SV181 )
                | ( in @ SY620 @ SV239 ) )
          | ~ ! [SY621: $i] :
                ( ~ ( in @ SY621 @ SV239 )
                | ( SY621 = SV181 ) ) )
        = $false )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1466]) ).

thf(1561,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ~ ( ! [SY622: $i] :
                  ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SY622 )
                  | ~ ( in @ SY622 @ SV182 ) )
              | ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) ) )
        = $false )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1467]) ).

thf(1562,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ ( sK18_SY312 @ SV240 @ SV182 ) )
                  | ~ ( in @ ( sK18_SY312 @ SV240 @ SV182 ) @ SV182 ) )
              | ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) ) )
        = $false )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1467]) ).

thf(1563,plain,
    ! [SV241: $i,SV183: $i] :
      ( ( ( ~ ! [SY623: $i] :
                ( ! [SY570: $i] :
                    ( ~ ( in @ SY623 @ SY570 )
                    | ~ ( in @ SY570 @ SV183 ) )
                | ( in @ SY623 @ SV241 ) )
          | ~ ! [SY625: $i] :
                ( ~ ( in @ SY625 @ SV241 )
                | ~ ( ~ ( in @ SY625 @ ( sK16_D @ SY625 @ SV241 @ SV183 ) )
                    | ~ ( in @ ( sK16_D @ SY625 @ SV241 @ SV183 ) @ SV183 ) ) ) )
        = $false )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1468]) ).

thf(1564,plain,
    ! [SV184: $i] :
      ( ( ( ( relation_dom @ SV184 )
          = empty_set )
        = $false )
      | ( ( SV184 = empty_set )
        = $true )
      | ( ( relation @ SV184 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1469]) ).

thf(1565,plain,
    ! [SV185: $i] :
      ( ( ( ( relation_rng @ SV185 )
          = empty_set )
        = $false )
      | ( ( SV185 = empty_set )
        = $true )
      | ( ( relation @ SV185 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1470]) ).

thf(1566,plain,
    ! [SV242: $i,SV186: $i] :
      ( ( ( SV186 = empty_set )
        = $true )
      | ( ( SV186
          = ( singleton @ SV242 ) )
        = $true )
      | ( ( subset @ SV186 @ ( singleton @ SV242 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1471]) ).

thf(1567,plain,
    ! [SV289: $i] :
      ( ( ( ( SV289 != empty_set ) )
        = $true )
      | ( ( ! [SY670: $i] : ( subset @ SV289 @ ( singleton @ SY670 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1472]) ).

thf(1568,plain,
    ! [SV320: $i,SV290: $i] :
      ( ( ( SV290
         != ( singleton @ SV320 ) )
        | ( subset @ SV290 @ ( singleton @ SV320 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1473]) ).

thf(1569,plain,
    ! [SV84: $i,SV243: $i] :
      ( ( ( subset @ SV243 @ ( sK2_B @ SV84 ) )
        = $false )
      | ( ( are_equipotent @ SV243 @ ( sK2_B @ SV84 ) )
        = $true )
      | ( ( in @ SV243 @ ( sK2_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1474]) ).

thf(1570,plain,
    ! [SV84: $i,SV321: $i] :
      ( ( ~ ( ~ ! [SY698: $i] :
                  ( ~ ( subset @ SY698 @ SV321 )
                  | ( in @ SY698 @ ( sK3_SY300 @ SV321 @ SV84 ) ) )
            | ~ ( in @ ( sK3_SY300 @ SV321 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
        | ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1475]) ).

thf(1571,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY449: $i,SY450: $i] :
              ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
              | ~ ( subset @ SY450 @ SY449 )
              | ( in @ SY450 @ ( sK2_B @ SV84 ) ) )
        | ~ ( in @ SV84 @ ( sK2_B @ SV84 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1476]) ).

thf(1572,plain,
    ! [SV272: $i,SV244: $i,SV85: $i] :
      ( ( ( ~ ( ! [SY655: $i,SY656: $i] :
                  ( ~ ( in @ SY655 @ SV85 )
                  | ~ ( in @ SY656 @ SV244 )
                  | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
                   != ( ordered_pair @ SY655 @ SY656 ) ) )
              | ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
          | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
                        | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) )
                  | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
                   != ( ordered_pair @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) ) ) )
              | ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) ) )
        = $false )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1477]) ).

thf(1573,plain,
    ! [SV245: $i,SV85: $i,SV273: $i] :
      ( ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY657: $i] :
                    ( ! [SY631: $i,SY632: $i] :
                        ( ~ ( in @ SY631 @ SV85 )
                        | ~ ( in @ SY632 @ SV245 )
                        | ( SY657
                         != ( ordered_pair @ SY631 @ SY632 ) ) )
                    | ( in @ SY657 @ SV273 ) )
              | ~ ! [SY660: $i] :
                    ( ~ ( in @ SY660 @ SV273 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                              | ~ ( in @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
                        | ( SY660
                         != ( ordered_pair @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1478]) ).

thf(1574,plain,
    ! [SV86: $i,SV291: $i] :
      ( ( ( ~ ( ~ ( ! [SY672: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ SY672 ) @ SV86 )
                  | ~ ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ ( sK41_SY326 @ SV291 @ SV86 ) ) @ SV86 )
                  | ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) ) ) )
        = $true )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1479]) ).

thf(1575,plain,
    ! [SV86: $i,SV292: $i] :
      ( ( ( ( SV292
           != ( relation_dom @ SV86 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY673: $i] :
                    ( ! [SY465: $i] :
                        ~ ( in @ ( ordered_pair @ SY673 @ SY465 ) @ SV86 )
                    | ( in @ SY673 @ SV292 ) )
              | ~ ! [SY675: $i] :
                    ( ~ ( in @ SY675 @ SV292 )
                    | ( in @ ( ordered_pair @ SY675 @ ( sK39_D @ SY675 @ SV292 @ SV86 ) ) @ SV86 ) ) ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1480]) ).

thf(1576,plain,
    ! [SV88: $i,SV293: $i] :
      ( ( ( ~ ( ~ ( ! [SY676: $i] :
                      ~ ( in @ ( ordered_pair @ SY676 @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
                  | ~ ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV293 @ SV88 ) @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
                  | ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) ) ) )
        = $true )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1485]) ).

thf(1577,plain,
    ! [SV88: $i,SV294: $i] :
      ( ( ( ( SV294
           != ( relation_rng @ SV88 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY677: $i] :
                    ( ! [SY471: $i] :
                        ~ ( in @ ( ordered_pair @ SY471 @ SY677 ) @ SV88 )
                    | ( in @ SY677 @ SV294 ) )
              | ~ ! [SY679: $i] :
                    ( ~ ( in @ SY679 @ SV294 )
                    | ( in @ ( ordered_pair @ ( sK36_D @ SY679 @ SV294 @ SV88 ) @ SY679 ) @ SV88 ) ) ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1486]) ).

thf(1578,plain,
    ! [SV295: $i] :
      ( ( ( SV295 = empty_set )
        = $true )
      | ( ( ! [SY680: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SY680 @ SV295 ) @ SV295 )
                          | ~ ~ ( in @ ( sK44_C @ SY680 @ SV295 ) @ ( sK45_SY327 @ SY680 @ SV295 ) ) )
                      | ~ ( in @ ( sK44_C @ SY680 @ SV295 ) @ SY680 ) )
                  | ~ ( ! [SY681: $i] :
                          ( ~ ( in @ SY681 @ SV295 )
                          | ( in @ ( sK44_C @ SY680 @ SV295 ) @ SY681 ) )
                      | ( in @ ( sK44_C @ SY680 @ SV295 ) @ SY680 ) ) )
              | ( SY680
                = ( set_meet @ SV295 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1487]) ).

thf(1579,plain,
    ! [SV296: $i] :
      ( ( ( SV296 = empty_set )
        = $true )
      | ( ( ! [SY682: $i] :
              ( ( SY682
               != ( set_meet @ SV296 ) )
              | ~ ( ~ ! [SY683: $i] :
                        ( ~ ( ~ ( in @ ( sK43_D @ SY683 @ SY682 @ SV296 ) @ SV296 )
                            | ~ ~ ( in @ SY683 @ ( sK43_D @ SY683 @ SY682 @ SV296 ) ) )
                        | ( in @ SY683 @ SY682 ) )
                  | ~ ! [SY684: $i] :
                        ( ~ ( in @ SY684 @ SY682 )
                        | ! [SY685: $i] :
                            ( ~ ( in @ SY685 @ SV296 )
                            | ( in @ SY684 @ SY685 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1488]) ).

thf(1580,plain,
    ! [SV297: $i] :
      ( ( ( ( SV297 != empty_set ) )
        = $true )
      | ( ( ! [SY686: $i] :
              ( ( SY686
               != ( set_meet @ SV297 ) )
              | ( SY686 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1489]) ).

thf(1581,plain,
    ! [SV298: $i] :
      ( ( ( ( SV298 != empty_set ) )
        = $true )
      | ( ( ! [SY687: $i] :
              ( ( SY687 != empty_set )
              | ( SY687
                = ( set_meet @ SV298 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1490]) ).

thf(1582,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                    | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                     != SV89 ) )
                | ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                    | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                     != SV250 ) ) )
          | ~ ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
              | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                = SV89 )
              | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                = SV250 ) ) )
        = $false )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1491]) ).

thf(1583,plain,
    ! [SV251: $i,SV89: $i,SV275: $i] :
      ( ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY661: $i] :
                    ( ~ ( in @ SY661 @ SV275 )
                    | ( SY661 = SV89 )
                    | ( SY661 = SV251 ) )
              | ~ ~ ( ~ ! [SY662: $i] :
                          ( ( SY662 != SV89 )
                          | ( in @ SY662 @ SV275 ) )
                    | ~ ! [SY663: $i] :
                          ( ( SY663 != SV251 )
                          | ( in @ SY663 @ SV275 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1492]) ).

thf(1584,plain,
    ! [SV193: $i,SV252: $i] :
      ( ( ( in @ SV252 @ SV193 )
        = $false )
      | ( ( ( set_difference @ SV193 @ ( singleton @ SV252 ) )
          = SV193 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1493]) ).

thf(1585,plain,
    ! [SV299: $i] :
      ( ( ( empty @ SV299 )
        = $true )
      | ( ( ! [SY688: $i] :
              ( ~ ( element @ SY688 @ SV299 )
              | ( in @ SY688 @ SV299 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1494]) ).

thf(1586,plain,
    ! [SV300: $i] :
      ( ( ( empty @ SV300 )
        = $true )
      | ( ( ! [SY689: $i] :
              ( ~ ( in @ SY689 @ SV300 )
              | ( element @ SY689 @ SV300 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1495]) ).

thf(1587,plain,
    ! [SV301: $i] :
      ( ( ( ~ ( empty @ SV301 ) )
        = $true )
      | ( ( ! [SY690: $i] :
              ( ~ ( element @ SY690 @ SV301 )
              | ( empty @ SY690 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1496]) ).

thf(1588,plain,
    ! [SV302: $i] :
      ( ( ( ~ ( empty @ SV302 ) )
        = $true )
      | ( ( ! [SY691: $i] :
              ( ~ ( empty @ SY691 )
              | ( element @ SY691 @ SV302 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1497]) ).

thf(1589,plain,
    ! [SV90: $i,SV195: $i] :
      ( ( ( ~ ! [SY579: $i] :
                ( ~ ( relation @ SY579 )
                | ~ ( ~ ( ! [SY580: $i] :
                            ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ SY580 ) @ SV90 )
                            | ~ ( in @ ( ordered_pair @ SY580 @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                        | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) ) @ SV90 )
                            | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                        | ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) ) )
                | ( SY579
                  = ( relation_composition @ SV90 @ SV195 ) ) ) )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1498]) ).

thf(1590,plain,
    ! [SV195: $i,SV90: $i] :
      ( ( ( ~ ! [SY581: $i] :
                ( ~ ( relation @ SY581 )
                | ( SY581
                 != ( relation_composition @ SV90 @ SV195 ) )
                | ~ ( ~ ! [SY582: $i,SY583: $i] :
                          ( ! [SY584: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY582 @ SY584 ) @ SV90 )
                              | ~ ( in @ ( ordered_pair @ SY584 @ SY583 ) @ SV195 ) )
                          | ( in @ ( ordered_pair @ SY582 @ SY583 ) @ SY581 ) )
                    | ~ ! [SY585: $i,SY586: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY585 @ SY586 ) @ SY581 )
                          | ~ ( ~ ( in @ ( ordered_pair @ SY585 @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) ) @ SV90 )
                              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) @ SY586 ) @ SV195 ) ) ) ) ) )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1498]) ).

thf(1591,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
              | ~ ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) ) )
        = $false )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1499]) ).

thf(1592,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( ~ ( ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
              | ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) ) )
        = $false )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1499]) ).

thf(1593,plain,
    ! [SV199: $i,SV255: $i] :
      ( ( ( ~ ! [SY639: $i] :
                ( ~ ( in @ SY639 @ SV255 )
                | ( subset @ SY639 @ SV199 ) )
          | ~ ! [SY640: $i] :
                ( ~ ( subset @ SY640 @ SV199 )
                | ( in @ SY640 @ SV255 ) ) )
        = $false )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1500]) ).

thf(1594,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( ~ ( relation @ SV303 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
                  | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
                  | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) ) )
          | ( SV303
            = ( relation_inverse @ SV91 ) ) )
        = $true )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1501]) ).

thf(1595,plain,
    ! [SV91: $i,SV304: $i] :
      ( ( ( ~ ( relation @ SV304 ) )
        = $true )
      | ( ( ( SV304
           != ( relation_inverse @ SV91 ) )
          | ~ ( ~ ! [SY692: $i,SY693: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY692 @ SY693 ) @ SV304 )
                    | ( in @ ( ordered_pair @ SY693 @ SY692 ) @ SV91 ) )
              | ~ ! [SY694: $i,SY695: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY695 @ SY694 ) @ SV91 )
                    | ( in @ ( ordered_pair @ SY694 @ SY695 ) @ SV304 ) ) ) )
        = $true )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1502]) ).

thf(1596,plain,
    ! [SV256: $i,SV200: $i] :
      ( ( ( SV200 = empty_set )
        = $true )
      | ( ( SV200
          = ( singleton @ SV256 ) )
        = $true )
      | ( ( subset @ SV200 @ ( singleton @ SV256 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1503]) ).

thf(1597,plain,
    ! [SV305: $i] :
      ( ( ( ( SV305 != empty_set ) )
        = $true )
      | ( ( ! [SY696: $i] : ( subset @ SV305 @ ( singleton @ SY696 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1504]) ).

thf(1598,plain,
    ! [SV322: $i,SV306: $i] :
      ( ( ( SV306
         != ( singleton @ SV322 ) )
        | ( subset @ SV306 @ ( singleton @ SV322 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1505]) ).

thf(1599,plain,
    ! [SV259: $i,SV276: $i,SV93: $i] :
      ( ( ( ~ ( in @ SV93 @ SV276 ) )
        = $true )
      | ( ( ~ ( in @ SV259 @ SV276 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV93 @ SV259 ) @ SV276 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1508]) ).

thf(1600,plain,
    ! [SV323: $i,SV93: $i] :
      ( ( ! [SY699: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV93 @ SV323 ) @ SY699 )
            | ( in @ SV93 @ SY699 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1509]) ).

thf(1601,plain,
    ! [SV324: $i,SV93: $i] :
      ( ( ! [SY700: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV93 @ SV324 ) @ SY700 )
            | ( in @ SV324 @ SY700 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1510]) ).

thf(1602,plain,
    ! [SV260: $i,SV94: $i,SV277: $i] :
      ( ( ( relation @ SV277 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV94 @ SV260 ) @ SV277 )
          | ( in @ SV94 @ ( relation_field @ SV277 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1511]) ).

thf(1603,plain,
    ! [SV261: $i,SV94: $i,SV278: $i] :
      ( ( ( relation @ SV278 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV94 @ SV261 ) @ SV278 )
          | ( in @ SV261 @ ( relation_field @ SV278 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1512]) ).

thf(1604,plain,
    ! [SV204: $i,SV307: $i] :
      ( ( ( in @ SV307 @ SV204 )
        = $false )
      | ( ( SV204 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1513]) ).

thf(1605,plain,
    ! [SV325: $i,SV279: $i,SV145: $i,SV95: $i] :
      ( ( ( ( ( ordered_pair @ SV95 @ SV145 )
           != ( ordered_pair @ SV279 @ SV325 ) ) )
        = $true )
      | ( ( SV95 = SV279 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1514]) ).

thf(1606,plain,
    ! [SV308: $i,SV280: $i,SV145: $i,SV95: $i] :
      ( ( ( ( ( ordered_pair @ SV95 @ SV145 )
           != ( ordered_pair @ SV280 @ SV308 ) ) )
        = $true )
      | ( ( SV145 = SV308 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1515]) ).

thf(1607,plain,
    ! [SV96: $i,SV309: $i] :
      ( ( ( ~ ( relation @ SV309 ) )
        = $true )
      | ( ( ~ ( subset @ SV96 @ SV309 )
          | ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SV309 ) ) )
        = $true )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1516]) ).

thf(1608,plain,
    ! [SV96: $i,SV310: $i] :
      ( ( ( ~ ( relation @ SV310 ) )
        = $true )
      | ( ( ~ ( subset @ SV96 @ SV310 )
          | ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SV310 ) ) )
        = $true )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1517]) ).

thf(1609,plain,
    ! [SV205: $i] :
      ( ( ( ! [SY595: $i,SY596: $i] :
              ( ( sK48_B @ SV205 )
             != ( ordered_pair @ SY595 @ SY596 ) ) )
        = $true )
      | ( ( relation @ SV205 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1518]) ).

thf(1610,plain,
    ! [SV205: $i] :
      ( ( ( in @ ( sK48_B @ SV205 ) @ SV205 )
        = $true )
      | ( ( relation @ SV205 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1519]) ).

thf(1611,plain,
    ! [SV206: $i,SV311: $i] :
      ( ( ( SV311
          = ( ordered_pair @ ( sK46_C @ SV311 @ SV206 ) @ ( sK47_SY329 @ SV311 @ SV206 ) ) )
        = $true )
      | ( ( ~ ( in @ SV311 @ SV206 ) )
        = $true )
      | ( ( relation @ SV206 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1520]) ).

thf(1612,plain,
    ! [SV164: $i,SV213: $i] :
      ( ( ( subset @ SV213 @ SV164 )
        = $false )
      | ( ( subset @ SV164 @ SV213 )
        = $false )
      | ( ( SV164 = SV213 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1525]) ).

thf(1613,plain,
    ! [SV312: $i,SV281: $i] :
      ( ( ( ( SV281 != SV312 ) )
        = $true )
      | ( ( subset @ SV281 @ SV312 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1526]) ).

thf(1614,plain,
    ! [SV313: $i,SV282: $i] :
      ( ( ( ( SV282 != SV313 ) )
        = $true )
      | ( ( subset @ SV313 @ SV282 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1527]) ).

thf(1615,plain,
    ! [SV314: $i,SV283: $i] :
      ( ( ( ~ ( proper_subset @ SV283 @ SV314 ) )
        = $true )
      | ( ( ( SV283 != SV314 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1529]) ).

thf(1616,plain,
    ! [SV315: $i,SV284: $i] :
      ( ( ( ~ ( proper_subset @ SV284 @ SV315 ) )
        = $true )
      | ( ( subset @ SV284 @ SV315 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1530]) ).

thf(1617,plain,
    ! [SV285: $i,SV216: $i,SV167: $i] :
      ( ( ( disjoint @ SV167 @ SV216 )
        = $false )
      | ( ( in @ SV285 @ ( set_intersection2 @ SV167 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1531]) ).

thf(1618,plain,
    ! [SV286: $i,SV142: $i,SV262: $i,SV75: $i] :
      ( ( ( ~ ( in @ SV75 @ SV262 ) )
        = $true )
      | ( ( ~ ( in @ SV142 @ SV286 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV262 @ SV286 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1532]) ).

thf(1619,plain,
    ! [SV326: $i,SV142: $i,SV75: $i] :
      ( ( ! [SY701: $i] :
            ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV326 @ SY701 ) )
        | ( in @ SV75 @ SV326 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1533]) ).

thf(1620,plain,
    ! [SV327: $i,SV142: $i,SV75: $i] :
      ( ( ! [SY702: $i] :
            ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV327 @ SY702 ) )
            | ( in @ SV142 @ SY702 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1534]) ).

thf(1621,plain,
    ! [SV263: $i,SV221: $i,SV77: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV77 @ SV221 ) @ SV263 ) )
        = $true )
      | ( ( in @ SV77 @ ( relation_dom @ SV263 ) )
        = $true )
      | ( ( relation @ SV263 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1537]) ).

thf(1622,plain,
    ! [SV264: $i,SV222: $i,SV77: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV77 @ SV222 ) @ SV264 ) )
        = $true )
      | ( ( in @ SV222 @ ( relation_rng @ SV264 ) )
        = $true )
      | ( ( relation @ SV264 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1538]) ).

thf(1623,plain,
    ! [SV78: $i,SV143: $i] :
      ( ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV143 )
        = $false )
      | ( ( in @ ( sK4_C @ SV143 @ SV78 ) @ SV78 )
        = $false )
      | ( ( SV78 = SV143 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1539]) ).

thf(1624,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                    | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) )
                | ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                    | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1540]) ).

thf(1625,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
              | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 )
              | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1540]) ).

thf(1626,plain,
    ! [SV224: $i,SV79: $i,SV266: $i] :
      ( ( ( ~ ! [SY645: $i] :
                ( ~ ( in @ SY645 @ SV266 )
                | ( in @ SY645 @ SV79 )
                | ( in @ SY645 @ SV224 ) )
          | ~ ~ ( ~ ! [SY646: $i] :
                      ( ~ ( in @ SY646 @ SV79 )
                      | ( in @ SY646 @ SV266 ) )
                | ~ ! [SY647: $i] :
                      ( ~ ( in @ SY647 @ SV224 )
                      | ( in @ SY647 @ SV266 ) ) ) )
        = $false )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1541]) ).

thf(1627,plain,
    ! [SV172: $i,SV225: $i] :
      ( ( ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV172 )
        = $true )
      | ( ( disjoint @ SV172 @ SV225 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1542]) ).

thf(1628,plain,
    ! [SV172: $i,SV225: $i] :
      ( ( ( in @ ( sK31_C @ SV225 @ SV172 ) @ SV225 )
        = $true )
      | ( ( disjoint @ SV172 @ SV225 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1543]) ).

thf(1629,plain,
    ! [SV226: $i,SV173: $i,SV287: $i] :
      ( ( ( in @ SV287 @ SV173 )
        = $false )
      | ( ( ~ ( in @ SV287 @ SV226 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV173 @ SV226 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1544]) ).

thf(1630,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
              | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
              | ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) ) )
        = $false )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1545]) ).

thf(1631,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
                    | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
                | ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
                    | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) ) ) )
        = $false )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1545]) ).

thf(1632,plain,
    ! [SV268: $i,SV228: $i,SV80: $i] :
      ( ( ( ~ ! [SY648: $i] :
                ( ~ ( in @ SY648 @ SV80 )
                | ( in @ SY648 @ SV228 )
                | ( in @ SY648 @ SV268 ) )
          | ~ ~ ( ~ ! [SY649: $i] :
                      ( ~ ( in @ SY649 @ SV268 )
                      | ( in @ SY649 @ SV80 ) )
                | ~ ! [SY650: $i] :
                      ( ~ ( in @ SY650 @ SV268 )
                      | ~ ( in @ SY650 @ SV228 ) ) ) )
        = $false )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1546]) ).

thf(1633,plain,
    ! [SV176: $i,SV231: $i] :
      ( ( ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV176 )
        = $true )
      | ( ( subset @ SV176 @ SV231 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1547]) ).

thf(1634,plain,
    ! [SV176: $i,SV231: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV231 ) )
        = $true )
      | ( ( subset @ SV176 @ SV231 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1548]) ).

thf(1635,plain,
    ! [SV232: $i,SV177: $i,SV318: $i] :
      ( ( ( ~ ( in @ SV318 @ SV177 ) )
        = $true )
      | ( ( in @ SV318 @ SV232 )
        = $true )
      | ( ( subset @ SV177 @ SV232 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1549]) ).

thf(1636,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
              | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
              | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1550]) ).

thf(1637,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
                    | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
                | ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
                    | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1550]) ).

thf(1638,plain,
    ! [SV270: $i,SV234: $i,SV81: $i] :
      ( ( ( ~ ! [SY651: $i] :
                ( ~ ( in @ SY651 @ SV81 )
                | ~ ( in @ SY651 @ SV234 )
                | ( in @ SY651 @ SV270 ) )
          | ~ ~ ( ~ ! [SY652: $i] :
                      ( ~ ( in @ SY652 @ SV270 )
                      | ( in @ SY652 @ SV81 ) )
                | ~ ! [SY653: $i] :
                      ( ~ ( in @ SY653 @ SV270 )
                      | ( in @ SY653 @ SV234 ) ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1551]) ).

thf(1639,plain,
    ! [SV82: $i,SV319: $i] :
      ( ( ( ~ ( in @ SV319 @ ( sK32_B @ SV82 ) ) )
        = $true )
      | ( ( in @ ( powerset @ SV319 ) @ ( sK32_B @ SV82 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1553]) ).

thf(1640,plain,
    ! [SV82: $i] :
      ( ( ~ ! [SY437: $i,SY438: $i] :
              ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
              | ~ ( subset @ SY438 @ SY437 )
              | ( in @ SY438 @ ( sK32_B @ SV82 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1554]) ).

thf(1641,plain,
    ! [SV82: $i] :
      ( ( ~ ( in @ SV82 @ ( sK32_B @ SV82 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1554]) ).

thf(1642,plain,
    ! [SV288: $i,SV144: $i,SV271: $i,SV83: $i] :
      ( ( ( ~ ( in @ SV83 @ SV271 ) )
        = $true )
      | ( ( ~ ( in @ SV144 @ SV288 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV271 @ SV288 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1555]) ).

thf(1643,plain,
    ! [SV328: $i,SV144: $i,SV83: $i] :
      ( ( ! [SY703: $i] :
            ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV328 @ SY703 ) )
        | ( in @ SV83 @ SV328 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1556]) ).

thf(1644,plain,
    ! [SV329: $i,SV144: $i,SV83: $i] :
      ( ( ! [SY704: $i] :
            ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV329 @ SY704 ) )
            | ( in @ SV144 @ SY704 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1557]) ).

thf(1645,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( ( ( sK29_C @ SV238 @ SV180 )
           != SV180 )
          | ~ ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) )
        = $true )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1558]) ).

thf(1646,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( ( ( sK29_C @ SV238 @ SV180 )
            = SV180 )
          | ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) )
        = $true )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1559]) ).

thf(1647,plain,
    ! [SV239: $i,SV181: $i] :
      ( ( ( ~ ! [SY620: $i] :
                ( ( SY620 != SV181 )
                | ( in @ SY620 @ SV239 ) ) )
        = $false )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1560]) ).

thf(1648,plain,
    ! [SV181: $i,SV239: $i] :
      ( ( ( ~ ! [SY621: $i] :
                ( ~ ( in @ SY621 @ SV239 )
                | ( SY621 = SV181 ) ) )
        = $false )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1560]) ).

thf(1649,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ! [SY622: $i] :
              ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SY622 )
              | ~ ( in @ SY622 @ SV182 ) )
          | ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1561]) ).

thf(1650,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ ( sK18_SY312 @ SV240 @ SV182 ) )
              | ~ ( in @ ( sK18_SY312 @ SV240 @ SV182 ) @ SV182 ) )
          | ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1562]) ).

thf(1651,plain,
    ! [SV241: $i,SV183: $i] :
      ( ( ( ~ ! [SY623: $i] :
                ( ! [SY570: $i] :
                    ( ~ ( in @ SY623 @ SY570 )
                    | ~ ( in @ SY570 @ SV183 ) )
                | ( in @ SY623 @ SV241 ) ) )
        = $false )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1563]) ).

thf(1652,plain,
    ! [SV183: $i,SV241: $i] :
      ( ( ( ~ ! [SY625: $i] :
                ( ~ ( in @ SY625 @ SV241 )
                | ~ ( ~ ( in @ SY625 @ ( sK16_D @ SY625 @ SV241 @ SV183 ) )
                    | ~ ( in @ ( sK16_D @ SY625 @ SV241 @ SV183 ) @ SV183 ) ) ) )
        = $false )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1563]) ).

thf(1653,plain,
    ! [SV289: $i] :
      ( ( ( SV289 = empty_set )
        = $false )
      | ( ( ! [SY670: $i] : ( subset @ SV289 @ ( singleton @ SY670 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1567]) ).

thf(1654,plain,
    ! [SV320: $i,SV290: $i] :
      ( ( ( ( SV290
           != ( singleton @ SV320 ) ) )
        = $true )
      | ( ( subset @ SV290 @ ( singleton @ SV320 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1568]) ).

thf(1655,plain,
    ! [SV84: $i,SV321: $i] :
      ( ( ( ~ ( ~ ! [SY698: $i] :
                    ( ~ ( subset @ SY698 @ SV321 )
                    | ( in @ SY698 @ ( sK3_SY300 @ SV321 @ SV84 ) ) )
              | ~ ( in @ ( sK3_SY300 @ SV321 @ SV84 ) @ ( sK2_B @ SV84 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1570]) ).

thf(1656,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY449: $i,SY450: $i] :
              ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
              | ~ ( subset @ SY450 @ SY449 )
              | ( in @ SY450 @ ( sK2_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1571]) ).

thf(1657,plain,
    ! [SV84: $i] :
      ( ( ~ ( in @ SV84 @ ( sK2_B @ SV84 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1571]) ).

thf(1658,plain,
    ! [SV272: $i,SV244: $i,SV85: $i] :
      ( ( ( ~ ( ! [SY655: $i,SY656: $i] :
                  ( ~ ( in @ SY655 @ SV85 )
                  | ~ ( in @ SY656 @ SV244 )
                  | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
                   != ( ordered_pair @ SY655 @ SY656 ) ) )
              | ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) ) )
        = $false )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1572]) ).

thf(1659,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
                        | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) )
                  | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
                   != ( ordered_pair @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) ) ) )
              | ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) ) )
        = $false )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1572]) ).

thf(1660,plain,
    ! [SV273: $i,SV245: $i,SV85: $i] :
      ( ( ( ~ ! [SY657: $i] :
                ( ! [SY631: $i,SY632: $i] :
                    ( ~ ( in @ SY631 @ SV85 )
                    | ~ ( in @ SY632 @ SV245 )
                    | ( SY657
                     != ( ordered_pair @ SY631 @ SY632 ) ) )
                | ( in @ SY657 @ SV273 ) )
          | ~ ! [SY660: $i] :
                ( ~ ( in @ SY660 @ SV273 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                          | ~ ( in @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
                    | ( SY660
                     != ( ordered_pair @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) ) ) ) ) )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1573]) ).

thf(1661,plain,
    ! [SV86: $i,SV291: $i] :
      ( ( ( ~ ( ! [SY672: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ SY672 ) @ SV86 )
              | ~ ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ ( sK41_SY326 @ SV291 @ SV86 ) ) @ SV86 )
              | ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) ) )
        = $false )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1574]) ).

thf(1662,plain,
    ! [SV86: $i,SV292: $i] :
      ( ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY673: $i] :
                    ( ! [SY465: $i] :
                        ~ ( in @ ( ordered_pair @ SY673 @ SY465 ) @ SV86 )
                    | ( in @ SY673 @ SV292 ) )
              | ~ ! [SY675: $i] :
                    ( ~ ( in @ SY675 @ SV292 )
                    | ( in @ ( ordered_pair @ SY675 @ ( sK39_D @ SY675 @ SV292 @ SV86 ) ) @ SV86 ) ) ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1575]) ).

thf(1663,plain,
    ! [SV88: $i,SV293: $i] :
      ( ( ( ~ ( ! [SY676: $i] :
                  ~ ( in @ ( ordered_pair @ SY676 @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
              | ~ ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV293 @ SV88 ) @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
              | ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) ) )
        = $false )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1576]) ).

thf(1664,plain,
    ! [SV88: $i,SV294: $i] :
      ( ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY677: $i] :
                    ( ! [SY471: $i] :
                        ~ ( in @ ( ordered_pair @ SY471 @ SY677 ) @ SV88 )
                    | ( in @ SY677 @ SV294 ) )
              | ~ ! [SY679: $i] :
                    ( ~ ( in @ SY679 @ SV294 )
                    | ( in @ ( ordered_pair @ ( sK36_D @ SY679 @ SV294 @ SV88 ) @ SY679 ) @ SV88 ) ) ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1577]) ).

thf(1665,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 )
                      | ~ ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) ) )
                  | ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
              | ~ ( ! [SY705: $i] :
                      ( ~ ( in @ SY705 @ SV295 )
                      | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SY705 ) )
                  | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) ) )
          | ( SV330
            = ( set_meet @ SV295 ) ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1578]) ).

thf(1666,plain,
    ! [SV296: $i,SV331: $i] :
      ( ( ( ( SV331
           != ( set_meet @ SV296 ) )
          | ~ ( ~ ! [SY706: $i] :
                    ( ~ ( ~ ( in @ ( sK43_D @ SY706 @ SV331 @ SV296 ) @ SV296 )
                        | ~ ~ ( in @ SY706 @ ( sK43_D @ SY706 @ SV331 @ SV296 ) ) )
                    | ( in @ SY706 @ SV331 ) )
              | ~ ! [SY707: $i] :
                    ( ~ ( in @ SY707 @ SV331 )
                    | ! [SY685: $i] :
                        ( ~ ( in @ SY685 @ SV296 )
                        | ( in @ SY707 @ SY685 ) ) ) ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1579]) ).

thf(1667,plain,
    ! [SV297: $i] :
      ( ( ( SV297 = empty_set )
        = $false )
      | ( ( ! [SY686: $i] :
              ( ( SY686
               != ( set_meet @ SV297 ) )
              | ( SY686 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1580]) ).

thf(1668,plain,
    ! [SV298: $i] :
      ( ( ( SV298 = empty_set )
        = $false )
      | ( ( ! [SY687: $i] :
              ( ( SY687 != empty_set )
              | ( SY687
                = ( set_meet @ SV298 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1581]) ).

thf(1669,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                    | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                     != SV89 ) )
                | ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                    | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                     != SV250 ) ) ) )
        = $false )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1582]) ).

thf(1670,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
              | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                = SV89 )
              | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                = SV250 ) ) )
        = $false )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1582]) ).

thf(1671,plain,
    ! [SV251: $i,SV89: $i,SV275: $i] :
      ( ( ( ~ ! [SY661: $i] :
                ( ~ ( in @ SY661 @ SV275 )
                | ( SY661 = SV89 )
                | ( SY661 = SV251 ) )
          | ~ ~ ( ~ ! [SY662: $i] :
                      ( ( SY662 != SV89 )
                      | ( in @ SY662 @ SV275 ) )
                | ~ ! [SY663: $i] :
                      ( ( SY663 != SV251 )
                      | ( in @ SY663 @ SV275 ) ) ) )
        = $false )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1583]) ).

thf(1672,plain,
    ! [SV299: $i,SV332: $i] :
      ( ( ( ~ ( element @ SV332 @ SV299 )
          | ( in @ SV332 @ SV299 ) )
        = $true )
      | ( ( empty @ SV299 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1585]) ).

thf(1673,plain,
    ! [SV300: $i,SV333: $i] :
      ( ( ( ~ ( in @ SV333 @ SV300 )
          | ( element @ SV333 @ SV300 ) )
        = $true )
      | ( ( empty @ SV300 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1586]) ).

thf(1674,plain,
    ! [SV301: $i] :
      ( ( ( empty @ SV301 )
        = $false )
      | ( ( ! [SY690: $i] :
              ( ~ ( element @ SY690 @ SV301 )
              | ( empty @ SY690 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1587]) ).

thf(1675,plain,
    ! [SV302: $i] :
      ( ( ( empty @ SV302 )
        = $false )
      | ( ( ! [SY691: $i] :
              ( ~ ( empty @ SY691 )
              | ( element @ SY691 @ SV302 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1588]) ).

thf(1676,plain,
    ! [SV90: $i,SV195: $i] :
      ( ( ( ! [SY579: $i] :
              ( ~ ( relation @ SY579 )
              | ~ ( ~ ( ! [SY580: $i] :
                          ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ SY580 ) @ SV90 )
                          | ~ ( in @ ( ordered_pair @ SY580 @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                      | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) )
                  | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) ) @ SV90 )
                          | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SV195 ) )
                      | ( in @ ( ordered_pair @ ( sK10_D @ SY579 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SY579 @ SV195 @ SV90 ) ) @ SY579 ) ) )
              | ( SY579
                = ( relation_composition @ SV90 @ SV195 ) ) ) )
        = $true )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1589]) ).

thf(1677,plain,
    ! [SV195: $i,SV90: $i] :
      ( ( ( ! [SY581: $i] :
              ( ~ ( relation @ SY581 )
              | ( SY581
               != ( relation_composition @ SV90 @ SV195 ) )
              | ~ ( ~ ! [SY582: $i,SY583: $i] :
                        ( ! [SY584: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY582 @ SY584 ) @ SV90 )
                            | ~ ( in @ ( ordered_pair @ SY584 @ SY583 ) @ SV195 ) )
                        | ( in @ ( ordered_pair @ SY582 @ SY583 ) @ SY581 ) )
                  | ~ ! [SY585: $i,SY586: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY585 @ SY586 ) @ SY581 )
                        | ~ ( ~ ( in @ ( ordered_pair @ SY585 @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) ) @ SV90 )
                            | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY586 @ SY585 @ SY581 @ SV195 @ SV90 ) @ SY586 ) @ SV195 ) ) ) ) ) )
        = $true )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1590]) ).

thf(1678,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( ~ ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
          | ~ ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) )
        = $true )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1591]) ).

thf(1679,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
          | ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) )
        = $true )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1592]) ).

thf(1680,plain,
    ! [SV199: $i,SV255: $i] :
      ( ( ( ~ ! [SY639: $i] :
                ( ~ ( in @ SY639 @ SV255 )
                | ( subset @ SY639 @ SV199 ) ) )
        = $false )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1593]) ).

thf(1681,plain,
    ! [SV255: $i,SV199: $i] :
      ( ( ( ~ ! [SY640: $i] :
                ( ~ ( subset @ SY640 @ SV199 )
                | ( in @ SY640 @ SV255 ) ) )
        = $false )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1593]) ).

thf(1682,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( relation @ SV303 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
                  | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
                  | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) ) )
          | ( SV303
            = ( relation_inverse @ SV91 ) ) )
        = $true )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1594]) ).

thf(1683,plain,
    ! [SV91: $i,SV304: $i] :
      ( ( ( relation @ SV304 )
        = $false )
      | ( ( ( SV304
           != ( relation_inverse @ SV91 ) )
          | ~ ( ~ ! [SY692: $i,SY693: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY692 @ SY693 ) @ SV304 )
                    | ( in @ ( ordered_pair @ SY693 @ SY692 ) @ SV91 ) )
              | ~ ! [SY694: $i,SY695: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY695 @ SY694 ) @ SV91 )
                    | ( in @ ( ordered_pair @ SY694 @ SY695 ) @ SV304 ) ) ) )
        = $true )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1595]) ).

thf(1684,plain,
    ! [SV305: $i] :
      ( ( ( SV305 = empty_set )
        = $false )
      | ( ( ! [SY696: $i] : ( subset @ SV305 @ ( singleton @ SY696 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1597]) ).

thf(1685,plain,
    ! [SV322: $i,SV306: $i] :
      ( ( ( ( SV306
           != ( singleton @ SV322 ) ) )
        = $true )
      | ( ( subset @ SV306 @ ( singleton @ SV322 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1598]) ).

thf(1686,plain,
    ! [SV259: $i,SV276: $i,SV93: $i] :
      ( ( ( in @ SV93 @ SV276 )
        = $false )
      | ( ( ~ ( in @ SV259 @ SV276 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV93 @ SV259 ) @ SV276 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1599]) ).

thf(1687,plain,
    ! [SV334: $i,SV323: $i,SV93: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV93 @ SV323 ) @ SV334 )
        | ( in @ SV93 @ SV334 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1600]) ).

thf(1688,plain,
    ! [SV335: $i,SV324: $i,SV93: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV93 @ SV324 ) @ SV335 )
        | ( in @ SV324 @ SV335 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1601]) ).

thf(1689,plain,
    ! [SV277: $i,SV260: $i,SV94: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV94 @ SV260 ) @ SV277 ) )
        = $true )
      | ( ( in @ SV94 @ ( relation_field @ SV277 ) )
        = $true )
      | ( ( relation @ SV277 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1602]) ).

thf(1690,plain,
    ! [SV278: $i,SV261: $i,SV94: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV94 @ SV261 ) @ SV278 ) )
        = $true )
      | ( ( in @ SV261 @ ( relation_field @ SV278 ) )
        = $true )
      | ( ( relation @ SV278 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1603]) ).

thf(1691,plain,
    ! [SV325: $i,SV279: $i,SV145: $i,SV95: $i] :
      ( ( ( ( ordered_pair @ SV95 @ SV145 )
          = ( ordered_pair @ SV279 @ SV325 ) )
        = $false )
      | ( ( SV95 = SV279 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1605]) ).

thf(1692,plain,
    ! [SV308: $i,SV280: $i,SV145: $i,SV95: $i] :
      ( ( ( ( ordered_pair @ SV95 @ SV145 )
          = ( ordered_pair @ SV280 @ SV308 ) )
        = $false )
      | ( ( SV145 = SV308 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1606]) ).

thf(1693,plain,
    ! [SV96: $i,SV309: $i] :
      ( ( ( relation @ SV309 )
        = $false )
      | ( ( ~ ( subset @ SV96 @ SV309 )
          | ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SV309 ) ) )
        = $true )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1607]) ).

thf(1694,plain,
    ! [SV96: $i,SV310: $i] :
      ( ( ( relation @ SV310 )
        = $false )
      | ( ( ~ ( subset @ SV96 @ SV310 )
          | ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SV310 ) ) )
        = $true )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1608]) ).

thf(1695,plain,
    ! [SV336: $i,SV205: $i] :
      ( ( ( ! [SY709: $i] :
              ( ( sK48_B @ SV205 )
             != ( ordered_pair @ SV336 @ SY709 ) ) )
        = $true )
      | ( ( relation @ SV205 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1609]) ).

thf(1696,plain,
    ! [SV206: $i,SV311: $i] :
      ( ( ( in @ SV311 @ SV206 )
        = $false )
      | ( ( SV311
          = ( ordered_pair @ ( sK46_C @ SV311 @ SV206 ) @ ( sK47_SY329 @ SV311 @ SV206 ) ) )
        = $true )
      | ( ( relation @ SV206 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1611]) ).

thf(1697,plain,
    ! [SV312: $i,SV281: $i] :
      ( ( ( SV281 = SV312 )
        = $false )
      | ( ( subset @ SV281 @ SV312 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1613]) ).

thf(1698,plain,
    ! [SV313: $i,SV282: $i] :
      ( ( ( SV282 = SV313 )
        = $false )
      | ( ( subset @ SV313 @ SV282 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1614]) ).

thf(1699,plain,
    ! [SV314: $i,SV283: $i] :
      ( ( ( proper_subset @ SV283 @ SV314 )
        = $false )
      | ( ( ( SV283 != SV314 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1615]) ).

thf(1700,plain,
    ! [SV315: $i,SV284: $i] :
      ( ( ( proper_subset @ SV284 @ SV315 )
        = $false )
      | ( ( subset @ SV284 @ SV315 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1616]) ).

thf(1701,plain,
    ! [SV286: $i,SV142: $i,SV262: $i,SV75: $i] :
      ( ( ( in @ SV75 @ SV262 )
        = $false )
      | ( ( ~ ( in @ SV142 @ SV286 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV262 @ SV286 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1618]) ).

thf(1702,plain,
    ! [SV326: $i,SV142: $i,SV75: $i] :
      ( ( ( ! [SY701: $i] :
              ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV326 @ SY701 ) ) )
        = $true )
      | ( ( in @ SV75 @ SV326 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1619]) ).

thf(1703,plain,
    ! [SV337: $i,SV327: $i,SV142: $i,SV75: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV327 @ SV337 ) )
        | ( in @ SV142 @ SV337 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1620]) ).

thf(1704,plain,
    ! [SV263: $i,SV221: $i,SV77: $i] :
      ( ( ( in @ ( ordered_pair @ SV77 @ SV221 ) @ SV263 )
        = $false )
      | ( ( in @ SV77 @ ( relation_dom @ SV263 ) )
        = $true )
      | ( ( relation @ SV263 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1621]) ).

thf(1705,plain,
    ! [SV264: $i,SV222: $i,SV77: $i] :
      ( ( ( in @ ( ordered_pair @ SV77 @ SV222 ) @ SV264 )
        = $false )
      | ( ( in @ SV222 @ ( relation_rng @ SV264 ) )
        = $true )
      | ( ( relation @ SV264 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1622]) ).

thf(1706,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                  | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) )
              | ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
                  | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1624]) ).

thf(1707,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
          | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 )
          | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1625]) ).

thf(1708,plain,
    ! [SV224: $i,SV79: $i,SV266: $i] :
      ( ( ( ~ ! [SY645: $i] :
                ( ~ ( in @ SY645 @ SV266 )
                | ( in @ SY645 @ SV79 )
                | ( in @ SY645 @ SV224 ) ) )
        = $false )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1626]) ).

thf(1709,plain,
    ! [SV224: $i,SV266: $i,SV79: $i] :
      ( ( ( ~ ~ ( ~ ! [SY646: $i] :
                      ( ~ ( in @ SY646 @ SV79 )
                      | ( in @ SY646 @ SV266 ) )
                | ~ ! [SY647: $i] :
                      ( ~ ( in @ SY647 @ SV224 )
                      | ( in @ SY647 @ SV266 ) ) ) )
        = $false )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1626]) ).

thf(1710,plain,
    ! [SV173: $i,SV226: $i,SV287: $i] :
      ( ( ( in @ SV287 @ SV226 )
        = $false )
      | ( ( in @ SV287 @ SV173 )
        = $false )
      | ( ( ~ ( disjoint @ SV173 @ SV226 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1629]) ).

thf(1711,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
          | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
          | ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1630]) ).

thf(1712,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
                  | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
              | ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
                  | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) ) ) )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1631]) ).

thf(1713,plain,
    ! [SV268: $i,SV228: $i,SV80: $i] :
      ( ( ( ~ ! [SY648: $i] :
                ( ~ ( in @ SY648 @ SV80 )
                | ( in @ SY648 @ SV228 )
                | ( in @ SY648 @ SV268 ) ) )
        = $false )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1632]) ).

thf(1714,plain,
    ! [SV228: $i,SV80: $i,SV268: $i] :
      ( ( ( ~ ~ ( ~ ! [SY649: $i] :
                      ( ~ ( in @ SY649 @ SV268 )
                      | ( in @ SY649 @ SV80 ) )
                | ~ ! [SY650: $i] :
                      ( ~ ( in @ SY650 @ SV268 )
                      | ~ ( in @ SY650 @ SV228 ) ) ) )
        = $false )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1632]) ).

thf(1715,plain,
    ! [SV176: $i,SV231: $i] :
      ( ( ( in @ ( sK20_C @ SV231 @ SV176 ) @ SV231 )
        = $false )
      | ( ( subset @ SV176 @ SV231 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1634]) ).

thf(1716,plain,
    ! [SV232: $i,SV177: $i,SV318: $i] :
      ( ( ( in @ SV318 @ SV177 )
        = $false )
      | ( ( in @ SV318 @ SV232 )
        = $true )
      | ( ( subset @ SV177 @ SV232 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1635]) ).

thf(1717,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
          | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
          | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1636]) ).

thf(1718,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
                  | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
              | ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
                  | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) ) ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1637]) ).

thf(1719,plain,
    ! [SV270: $i,SV234: $i,SV81: $i] :
      ( ( ( ~ ! [SY651: $i] :
                ( ~ ( in @ SY651 @ SV81 )
                | ~ ( in @ SY651 @ SV234 )
                | ( in @ SY651 @ SV270 ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1638]) ).

thf(1720,plain,
    ! [SV234: $i,SV81: $i,SV270: $i] :
      ( ( ( ~ ~ ( ~ ! [SY652: $i] :
                      ( ~ ( in @ SY652 @ SV270 )
                      | ( in @ SY652 @ SV81 ) )
                | ~ ! [SY653: $i] :
                      ( ~ ( in @ SY653 @ SV270 )
                      | ( in @ SY653 @ SV234 ) ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1638]) ).

thf(1721,plain,
    ! [SV82: $i,SV319: $i] :
      ( ( ( in @ SV319 @ ( sK32_B @ SV82 ) )
        = $false )
      | ( ( in @ ( powerset @ SV319 ) @ ( sK32_B @ SV82 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1639]) ).

thf(1722,plain,
    ! [SV82: $i] :
      ( ( ! [SY437: $i,SY438: $i] :
            ( ~ ( in @ SY437 @ ( sK32_B @ SV82 ) )
            | ~ ( subset @ SY438 @ SY437 )
            | ( in @ SY438 @ ( sK32_B @ SV82 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1640]) ).

thf(1723,plain,
    ! [SV82: $i] :
      ( ( in @ SV82 @ ( sK32_B @ SV82 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1641]) ).

thf(1724,plain,
    ! [SV288: $i,SV144: $i,SV271: $i,SV83: $i] :
      ( ( ( in @ SV83 @ SV271 )
        = $false )
      | ( ( ~ ( in @ SV144 @ SV288 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV271 @ SV288 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1642]) ).

thf(1725,plain,
    ! [SV328: $i,SV144: $i,SV83: $i] :
      ( ( ( ! [SY703: $i] :
              ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV328 @ SY703 ) ) )
        = $true )
      | ( ( in @ SV83 @ SV328 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1643]) ).

thf(1726,plain,
    ! [SV338: $i,SV329: $i,SV144: $i,SV83: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV329 @ SV338 ) )
        | ( in @ SV144 @ SV338 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1644]) ).

thf(1727,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( ( ( sK29_C @ SV238 @ SV180 )
           != SV180 ) )
        = $true )
      | ( ( ~ ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) )
        = $true )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1645]) ).

thf(1728,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( ( sK29_C @ SV238 @ SV180 )
          = SV180 )
        = $true )
      | ( ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 )
        = $true )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1646]) ).

thf(1729,plain,
    ! [SV239: $i,SV181: $i] :
      ( ( ( ! [SY620: $i] :
              ( ( SY620 != SV181 )
              | ( in @ SY620 @ SV239 ) ) )
        = $true )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1647]) ).

thf(1730,plain,
    ! [SV181: $i,SV239: $i] :
      ( ( ( ! [SY621: $i] :
              ( ~ ( in @ SY621 @ SV239 )
              | ( SY621 = SV181 ) ) )
        = $true )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1648]) ).

thf(1731,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ! [SY622: $i] :
              ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SY622 )
              | ~ ( in @ SY622 @ SV182 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1649]) ).

thf(1732,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ ( sK18_SY312 @ SV240 @ SV182 ) )
              | ~ ( in @ ( sK18_SY312 @ SV240 @ SV182 ) @ SV182 ) ) )
        = $true )
      | ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1650]) ).

thf(1733,plain,
    ! [SV241: $i,SV183: $i] :
      ( ( ( ! [SY623: $i] :
              ( ! [SY570: $i] :
                  ( ~ ( in @ SY623 @ SY570 )
                  | ~ ( in @ SY570 @ SV183 ) )
              | ( in @ SY623 @ SV241 ) ) )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1651]) ).

thf(1734,plain,
    ! [SV183: $i,SV241: $i] :
      ( ( ( ! [SY625: $i] :
              ( ~ ( in @ SY625 @ SV241 )
              | ~ ( ~ ( in @ SY625 @ ( sK16_D @ SY625 @ SV241 @ SV183 ) )
                  | ~ ( in @ ( sK16_D @ SY625 @ SV241 @ SV183 ) @ SV183 ) ) ) )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1652]) ).

thf(1735,plain,
    ! [SV339: $i,SV289: $i] :
      ( ( ( subset @ SV289 @ ( singleton @ SV339 ) )
        = $true )
      | ( ( SV289 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1653]) ).

thf(1736,plain,
    ! [SV320: $i,SV290: $i] :
      ( ( ( SV290
          = ( singleton @ SV320 ) )
        = $false )
      | ( ( subset @ SV290 @ ( singleton @ SV320 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1654]) ).

thf(1737,plain,
    ! [SV84: $i,SV321: $i] :
      ( ( ( ~ ! [SY698: $i] :
                ( ~ ( subset @ SY698 @ SV321 )
                | ( in @ SY698 @ ( sK3_SY300 @ SV321 @ SV84 ) ) )
          | ~ ( in @ ( sK3_SY300 @ SV321 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
        = $false )
      | ( ( ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1655]) ).

thf(1738,plain,
    ! [SV84: $i] :
      ( ( ! [SY449: $i,SY450: $i] :
            ( ~ ( in @ SY449 @ ( sK2_B @ SV84 ) )
            | ~ ( subset @ SY450 @ SY449 )
            | ( in @ SY450 @ ( sK2_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1656]) ).

thf(1739,plain,
    ! [SV84: $i] :
      ( ( in @ SV84 @ ( sK2_B @ SV84 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1657]) ).

thf(1740,plain,
    ! [SV272: $i,SV244: $i,SV85: $i] :
      ( ( ( ! [SY655: $i,SY656: $i] :
              ( ~ ( in @ SY655 @ SV85 )
              | ~ ( in @ SY656 @ SV244 )
              | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
               != ( ordered_pair @ SY655 @ SY656 ) ) )
          | ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1658]) ).

thf(1741,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
                    | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) )
              | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
               != ( ordered_pair @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) ) ) )
          | ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1659]) ).

thf(1742,plain,
    ! [SV273: $i,SV245: $i,SV85: $i] :
      ( ( ( ~ ! [SY657: $i] :
                ( ! [SY631: $i,SY632: $i] :
                    ( ~ ( in @ SY631 @ SV85 )
                    | ~ ( in @ SY632 @ SV245 )
                    | ( SY657
                     != ( ordered_pair @ SY631 @ SY632 ) ) )
                | ( in @ SY657 @ SV273 ) ) )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1660]) ).

thf(1743,plain,
    ! [SV85: $i,SV245: $i,SV273: $i] :
      ( ( ( ~ ! [SY660: $i] :
                ( ~ ( in @ SY660 @ SV273 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                          | ~ ( in @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
                    | ( SY660
                     != ( ordered_pair @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) ) ) ) ) )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1660]) ).

thf(1744,plain,
    ! [SV86: $i,SV291: $i] :
      ( ( ( ~ ( ! [SY672: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ SY672 ) @ SV86 )
              | ~ ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) ) )
        = $false )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1661]) ).

thf(1745,plain,
    ! [SV86: $i,SV291: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ ( sK41_SY326 @ SV291 @ SV86 ) ) @ SV86 )
              | ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) ) )
        = $false )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1661]) ).

thf(1746,plain,
    ! [SV292: $i,SV86: $i] :
      ( ( ( ~ ! [SY673: $i] :
                ( ! [SY465: $i] :
                    ~ ( in @ ( ordered_pair @ SY673 @ SY465 ) @ SV86 )
                | ( in @ SY673 @ SV292 ) )
          | ~ ! [SY675: $i] :
                ( ~ ( in @ SY675 @ SV292 )
                | ( in @ ( ordered_pair @ SY675 @ ( sK39_D @ SY675 @ SV292 @ SV86 ) ) @ SV86 ) ) )
        = $false )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1662]) ).

thf(1747,plain,
    ! [SV88: $i,SV293: $i] :
      ( ( ( ~ ( ! [SY676: $i] :
                  ~ ( in @ ( ordered_pair @ SY676 @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
              | ~ ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) ) )
        = $false )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1663]) ).

thf(1748,plain,
    ! [SV88: $i,SV293: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV293 @ SV88 ) @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
              | ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) ) )
        = $false )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1663]) ).

thf(1749,plain,
    ! [SV294: $i,SV88: $i] :
      ( ( ( ~ ! [SY677: $i] :
                ( ! [SY471: $i] :
                    ~ ( in @ ( ordered_pair @ SY471 @ SY677 ) @ SV88 )
                | ( in @ SY677 @ SV294 ) )
          | ~ ! [SY679: $i] :
                ( ~ ( in @ SY679 @ SV294 )
                | ( in @ ( ordered_pair @ ( sK36_D @ SY679 @ SV294 @ SV88 ) @ SY679 ) @ SV88 ) ) )
        = $false )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1664]) ).

thf(1750,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 )
                      | ~ ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) ) )
                  | ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
              | ~ ( ! [SY705: $i] :
                      ( ~ ( in @ SY705 @ SV295 )
                      | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SY705 ) )
                  | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) ) ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1665]) ).

thf(1751,plain,
    ! [SV296: $i,SV331: $i] :
      ( ( ( ( SV331
           != ( set_meet @ SV296 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY706: $i] :
                    ( ~ ( ~ ( in @ ( sK43_D @ SY706 @ SV331 @ SV296 ) @ SV296 )
                        | ~ ~ ( in @ SY706 @ ( sK43_D @ SY706 @ SV331 @ SV296 ) ) )
                    | ( in @ SY706 @ SV331 ) )
              | ~ ! [SY707: $i] :
                    ( ~ ( in @ SY707 @ SV331 )
                    | ! [SY685: $i] :
                        ( ~ ( in @ SY685 @ SV296 )
                        | ( in @ SY707 @ SY685 ) ) ) ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1666]) ).

thf(1752,plain,
    ! [SV297: $i,SV340: $i] :
      ( ( ( ( SV340
           != ( set_meet @ SV297 ) )
          | ( SV340 = empty_set ) )
        = $true )
      | ( ( SV297 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1667]) ).

thf(1753,plain,
    ! [SV298: $i,SV341: $i] :
      ( ( ( ( SV341 != empty_set )
          | ( SV341
            = ( set_meet @ SV298 ) ) )
        = $true )
      | ( ( SV298 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1668]) ).

thf(1754,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                  | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                   != SV89 ) )
              | ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
                  | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
                   != SV250 ) ) ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1669]) ).

thf(1755,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
          | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
            = SV89 )
          | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
            = SV250 ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1670]) ).

thf(1756,plain,
    ! [SV251: $i,SV89: $i,SV275: $i] :
      ( ( ( ~ ! [SY661: $i] :
                ( ~ ( in @ SY661 @ SV275 )
                | ( SY661 = SV89 )
                | ( SY661 = SV251 ) ) )
        = $false )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1671]) ).

thf(1757,plain,
    ! [SV251: $i,SV275: $i,SV89: $i] :
      ( ( ( ~ ~ ( ~ ! [SY662: $i] :
                      ( ( SY662 != SV89 )
                      | ( in @ SY662 @ SV275 ) )
                | ~ ! [SY663: $i] :
                      ( ( SY663 != SV251 )
                      | ( in @ SY663 @ SV275 ) ) ) )
        = $false )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1671]) ).

thf(1758,plain,
    ! [SV299: $i,SV332: $i] :
      ( ( ( ~ ( element @ SV332 @ SV299 ) )
        = $true )
      | ( ( in @ SV332 @ SV299 )
        = $true )
      | ( ( empty @ SV299 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1672]) ).

thf(1759,plain,
    ! [SV300: $i,SV333: $i] :
      ( ( ( ~ ( in @ SV333 @ SV300 ) )
        = $true )
      | ( ( element @ SV333 @ SV300 )
        = $true )
      | ( ( empty @ SV300 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1673]) ).

thf(1760,plain,
    ! [SV301: $i,SV342: $i] :
      ( ( ( ~ ( element @ SV342 @ SV301 )
          | ( empty @ SV342 ) )
        = $true )
      | ( ( empty @ SV301 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1674]) ).

thf(1761,plain,
    ! [SV302: $i,SV343: $i] :
      ( ( ( ~ ( empty @ SV343 )
          | ( element @ SV343 @ SV302 ) )
        = $true )
      | ( ( empty @ SV302 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1675]) ).

thf(1762,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( relation @ SV344 )
          | ~ ( ~ ( ! [SY710: $i] :
                      ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SY710 ) @ SV90 )
                      | ~ ( in @ ( ordered_pair @ SY710 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
                  | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
                      | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
                  | ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) ) )
          | ( SV344
            = ( relation_composition @ SV90 @ SV195 ) ) )
        = $true )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1676]) ).

thf(1763,plain,
    ! [SV195: $i,SV90: $i,SV345: $i] :
      ( ( ( ~ ( relation @ SV345 )
          | ( SV345
           != ( relation_composition @ SV90 @ SV195 ) )
          | ~ ( ~ ! [SY711: $i,SY712: $i] :
                    ( ! [SY584: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY711 @ SY584 ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ SY584 @ SY712 ) @ SV195 ) )
                    | ( in @ ( ordered_pair @ SY711 @ SY712 ) @ SV345 ) )
              | ~ ! [SY714: $i,SY715: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY714 @ SY715 ) @ SV345 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY714 @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) @ SY715 ) @ SV195 ) ) ) ) )
        = $true )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1677]) ).

thf(1764,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( ~ ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) )
        = $true )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1678]) ).

thf(1765,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
        = $true )
      | ( ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 )
        = $true )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1679]) ).

thf(1766,plain,
    ! [SV199: $i,SV255: $i] :
      ( ( ( ! [SY639: $i] :
              ( ~ ( in @ SY639 @ SV255 )
              | ( subset @ SY639 @ SV199 ) ) )
        = $true )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1680]) ).

thf(1767,plain,
    ! [SV255: $i,SV199: $i] :
      ( ( ( ! [SY640: $i] :
              ( ~ ( subset @ SY640 @ SV199 )
              | ( in @ SY640 @ SV255 ) ) )
        = $true )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1681]) ).

thf(1768,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
                  | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
                  | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) ) ) )
        = $true )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1682]) ).

thf(1769,plain,
    ! [SV91: $i,SV304: $i] :
      ( ( ( ( SV304
           != ( relation_inverse @ SV91 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY692: $i,SY693: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY692 @ SY693 ) @ SV304 )
                    | ( in @ ( ordered_pair @ SY693 @ SY692 ) @ SV91 ) )
              | ~ ! [SY694: $i,SY695: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY695 @ SY694 ) @ SV91 )
                    | ( in @ ( ordered_pair @ SY694 @ SY695 ) @ SV304 ) ) ) )
        = $true )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1683]) ).

thf(1770,plain,
    ! [SV346: $i,SV305: $i] :
      ( ( ( subset @ SV305 @ ( singleton @ SV346 ) )
        = $true )
      | ( ( SV305 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1684]) ).

thf(1771,plain,
    ! [SV322: $i,SV306: $i] :
      ( ( ( SV306
          = ( singleton @ SV322 ) )
        = $false )
      | ( ( subset @ SV306 @ ( singleton @ SV322 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1685]) ).

thf(1772,plain,
    ! [SV93: $i,SV276: $i,SV259: $i] :
      ( ( ( in @ SV259 @ SV276 )
        = $false )
      | ( ( in @ SV93 @ SV276 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV93 @ SV259 ) @ SV276 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1686]) ).

thf(1773,plain,
    ! [SV334: $i,SV323: $i,SV93: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV93 @ SV323 ) @ SV334 ) )
        = $true )
      | ( ( in @ SV93 @ SV334 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1687]) ).

thf(1774,plain,
    ! [SV335: $i,SV324: $i,SV93: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV93 @ SV324 ) @ SV335 ) )
        = $true )
      | ( ( in @ SV324 @ SV335 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1688]) ).

thf(1775,plain,
    ! [SV277: $i,SV260: $i,SV94: $i] :
      ( ( ( in @ ( ordered_pair @ SV94 @ SV260 ) @ SV277 )
        = $false )
      | ( ( in @ SV94 @ ( relation_field @ SV277 ) )
        = $true )
      | ( ( relation @ SV277 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1689]) ).

thf(1776,plain,
    ! [SV278: $i,SV261: $i,SV94: $i] :
      ( ( ( in @ ( ordered_pair @ SV94 @ SV261 ) @ SV278 )
        = $false )
      | ( ( in @ SV261 @ ( relation_field @ SV278 ) )
        = $true )
      | ( ( relation @ SV278 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1690]) ).

thf(1777,plain,
    ! [SV309: $i,SV96: $i] :
      ( ( ( ~ ( subset @ SV96 @ SV309 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SV309 ) )
        = $true )
      | ( ( relation @ SV309 )
        = $false )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1693]) ).

thf(1778,plain,
    ! [SV310: $i,SV96: $i] :
      ( ( ( ~ ( subset @ SV96 @ SV310 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SV310 ) )
        = $true )
      | ( ( relation @ SV310 )
        = $false )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1694]) ).

thf(1779,plain,
    ! [SV347: $i,SV336: $i,SV205: $i] :
      ( ( ( ( ( sK48_B @ SV205 )
           != ( ordered_pair @ SV336 @ SV347 ) ) )
        = $true )
      | ( ( relation @ SV205 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1695]) ).

thf(1780,plain,
    ! [SV314: $i,SV283: $i] :
      ( ( ( SV283 = SV314 )
        = $false )
      | ( ( proper_subset @ SV283 @ SV314 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1699]) ).

thf(1781,plain,
    ! [SV262: $i,SV75: $i,SV286: $i,SV142: $i] :
      ( ( ( in @ SV142 @ SV286 )
        = $false )
      | ( ( in @ SV75 @ SV262 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV262 @ SV286 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1701]) ).

thf(1782,plain,
    ! [SV348: $i,SV326: $i,SV142: $i,SV75: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV326 @ SV348 ) ) )
        = $true )
      | ( ( in @ SV75 @ SV326 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1702]) ).

thf(1783,plain,
    ! [SV337: $i,SV327: $i,SV142: $i,SV75: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV327 @ SV337 ) ) )
        = $true )
      | ( ( in @ SV142 @ SV337 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1703]) ).

thf(1784,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
              | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) )
          | ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
              | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1706]) ).

thf(1785,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
        = $true )
      | ( ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 )
          | ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1707]) ).

thf(1786,plain,
    ! [SV224: $i,SV79: $i,SV266: $i] :
      ( ( ( ! [SY645: $i] :
              ( ~ ( in @ SY645 @ SV266 )
              | ( in @ SY645 @ SV79 )
              | ( in @ SY645 @ SV224 ) ) )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1708]) ).

thf(1787,plain,
    ! [SV224: $i,SV266: $i,SV79: $i] :
      ( ( ( ~ ( ~ ! [SY646: $i] :
                    ( ~ ( in @ SY646 @ SV79 )
                    | ( in @ SY646 @ SV266 ) )
              | ~ ! [SY647: $i] :
                    ( ~ ( in @ SY647 @ SV224 )
                    | ( in @ SY647 @ SV266 ) ) ) )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1709]) ).

thf(1788,plain,
    ! [SV287: $i,SV226: $i,SV173: $i] :
      ( ( ( disjoint @ SV173 @ SV226 )
        = $false )
      | ( ( in @ SV287 @ SV173 )
        = $false )
      | ( ( in @ SV287 @ SV226 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1710]) ).

thf(1789,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
          | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 ) )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1711]) ).

thf(1790,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
              | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
          | ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
              | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) ) )
        = $false )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1712]) ).

thf(1791,plain,
    ! [SV268: $i,SV228: $i,SV80: $i] :
      ( ( ( ! [SY648: $i] :
              ( ~ ( in @ SY648 @ SV80 )
              | ( in @ SY648 @ SV228 )
              | ( in @ SY648 @ SV268 ) ) )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1713]) ).

thf(1792,plain,
    ! [SV228: $i,SV80: $i,SV268: $i] :
      ( ( ( ~ ( ~ ! [SY649: $i] :
                    ( ~ ( in @ SY649 @ SV268 )
                    | ( in @ SY649 @ SV80 ) )
              | ~ ! [SY650: $i] :
                    ( ~ ( in @ SY650 @ SV268 )
                    | ~ ( in @ SY650 @ SV228 ) ) ) )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1714]) ).

thf(1793,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
          | ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1717]) ).

thf(1794,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
              | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
          | ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
              | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1718]) ).

thf(1795,plain,
    ! [SV270: $i,SV234: $i,SV81: $i] :
      ( ( ( ! [SY651: $i] :
              ( ~ ( in @ SY651 @ SV81 )
              | ~ ( in @ SY651 @ SV234 )
              | ( in @ SY651 @ SV270 ) ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1719]) ).

thf(1796,plain,
    ! [SV234: $i,SV81: $i,SV270: $i] :
      ( ( ( ~ ( ~ ! [SY652: $i] :
                    ( ~ ( in @ SY652 @ SV270 )
                    | ( in @ SY652 @ SV81 ) )
              | ~ ! [SY653: $i] :
                    ( ~ ( in @ SY653 @ SV270 )
                    | ( in @ SY653 @ SV234 ) ) ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1720]) ).

thf(1797,plain,
    ! [SV82: $i,SV349: $i] :
      ( ( ! [SY716: $i] :
            ( ~ ( in @ SV349 @ ( sK32_B @ SV82 ) )
            | ~ ( subset @ SY716 @ SV349 )
            | ( in @ SY716 @ ( sK32_B @ SV82 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1722]) ).

thf(1798,plain,
    ! [SV271: $i,SV83: $i,SV288: $i,SV144: $i] :
      ( ( ( in @ SV144 @ SV288 )
        = $false )
      | ( ( in @ SV83 @ SV271 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV271 @ SV288 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1724]) ).

thf(1799,plain,
    ! [SV350: $i,SV328: $i,SV144: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV328 @ SV350 ) ) )
        = $true )
      | ( ( in @ SV83 @ SV328 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1725]) ).

thf(1800,plain,
    ! [SV338: $i,SV329: $i,SV144: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV329 @ SV338 ) ) )
        = $true )
      | ( ( in @ SV144 @ SV338 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1726]) ).

thf(1801,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( ( sK29_C @ SV238 @ SV180 )
          = SV180 )
        = $false )
      | ( ( ~ ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 ) )
        = $true )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1727]) ).

thf(1802,plain,
    ! [SV239: $i,SV181: $i,SV351: $i] :
      ( ( ( ( SV351 != SV181 )
          | ( in @ SV351 @ SV239 ) )
        = $true )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1729]) ).

thf(1803,plain,
    ! [SV181: $i,SV239: $i,SV352: $i] :
      ( ( ( ~ ( in @ SV352 @ SV239 )
          | ( SV352 = SV181 ) )
        = $true )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1730]) ).

thf(1804,plain,
    ! [SV353: $i,SV182: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV353 )
          | ~ ( in @ SV353 @ SV182 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1731]) ).

thf(1805,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ ( sK18_SY312 @ SV240 @ SV182 ) )
          | ~ ( in @ ( sK18_SY312 @ SV240 @ SV182 ) @ SV182 ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1732]) ).

thf(1806,plain,
    ! [SV241: $i,SV183: $i,SV354: $i] :
      ( ( ( ! [SY717: $i] :
              ( ~ ( in @ SV354 @ SY717 )
              | ~ ( in @ SY717 @ SV183 ) )
          | ( in @ SV354 @ SV241 ) )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1733]) ).

thf(1807,plain,
    ! [SV183: $i,SV241: $i,SV355: $i] :
      ( ( ( ~ ( in @ SV355 @ SV241 )
          | ~ ( ~ ( in @ SV355 @ ( sK16_D @ SV355 @ SV241 @ SV183 ) )
              | ~ ( in @ ( sK16_D @ SV355 @ SV241 @ SV183 ) @ SV183 ) ) )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1734]) ).

thf(1808,plain,
    ! [SV84: $i,SV321: $i] :
      ( ( ( ~ ! [SY698: $i] :
                ( ~ ( subset @ SY698 @ SV321 )
                | ( in @ SY698 @ ( sK3_SY300 @ SV321 @ SV84 ) ) ) )
        = $false )
      | ( ( ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1737]) ).

thf(1809,plain,
    ! [SV84: $i,SV321: $i] :
      ( ( ( ~ ( in @ ( sK3_SY300 @ SV321 @ SV84 ) @ ( sK2_B @ SV84 ) ) )
        = $false )
      | ( ( ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1737]) ).

thf(1810,plain,
    ! [SV84: $i,SV356: $i] :
      ( ( ! [SY718: $i] :
            ( ~ ( in @ SV356 @ ( sK2_B @ SV84 ) )
            | ~ ( subset @ SY718 @ SV356 )
            | ( in @ SY718 @ ( sK2_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1738]) ).

thf(1811,plain,
    ! [SV272: $i,SV244: $i,SV85: $i] :
      ( ( ( ! [SY655: $i,SY656: $i] :
              ( ~ ( in @ SY655 @ SV85 )
              | ~ ( in @ SY656 @ SV244 )
              | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
               != ( ordered_pair @ SY655 @ SY656 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1740]) ).

thf(1812,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
                    | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) )
              | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
               != ( ordered_pair @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1741]) ).

thf(1813,plain,
    ! [SV273: $i,SV245: $i,SV85: $i] :
      ( ( ( ! [SY657: $i] :
              ( ! [SY631: $i,SY632: $i] :
                  ( ~ ( in @ SY631 @ SV85 )
                  | ~ ( in @ SY632 @ SV245 )
                  | ( SY657
                   != ( ordered_pair @ SY631 @ SY632 ) ) )
              | ( in @ SY657 @ SV273 ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1742]) ).

thf(1814,plain,
    ! [SV85: $i,SV245: $i,SV273: $i] :
      ( ( ( ! [SY660: $i] :
              ( ~ ( in @ SY660 @ SV273 )
              | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                        | ~ ( in @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
                  | ( SY660
                   != ( ordered_pair @ ( sK21_E @ SY660 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SY660 @ SV273 @ SV245 @ SV85 ) ) ) ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1743]) ).

thf(1815,plain,
    ! [SV86: $i,SV291: $i] :
      ( ( ( ! [SY672: $i] :
              ~ ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ SY672 ) @ SV86 )
          | ~ ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1744]) ).

thf(1816,plain,
    ! [SV86: $i,SV291: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ ( sK41_SY326 @ SV291 @ SV86 ) ) @ SV86 )
          | ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1745]) ).

thf(1817,plain,
    ! [SV292: $i,SV86: $i] :
      ( ( ( ~ ! [SY673: $i] :
                ( ! [SY465: $i] :
                    ~ ( in @ ( ordered_pair @ SY673 @ SY465 ) @ SV86 )
                | ( in @ SY673 @ SV292 ) ) )
        = $false )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1746]) ).

thf(1818,plain,
    ! [SV86: $i,SV292: $i] :
      ( ( ( ~ ! [SY675: $i] :
                ( ~ ( in @ SY675 @ SV292 )
                | ( in @ ( ordered_pair @ SY675 @ ( sK39_D @ SY675 @ SV292 @ SV86 ) ) @ SV86 ) ) )
        = $false )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1746]) ).

thf(1819,plain,
    ! [SV88: $i,SV293: $i] :
      ( ( ( ! [SY676: $i] :
              ~ ( in @ ( ordered_pair @ SY676 @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
          | ~ ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) )
        = $true )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1747]) ).

thf(1820,plain,
    ! [SV88: $i,SV293: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV293 @ SV88 ) @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
          | ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) )
        = $true )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1748]) ).

thf(1821,plain,
    ! [SV294: $i,SV88: $i] :
      ( ( ( ~ ! [SY677: $i] :
                ( ! [SY471: $i] :
                    ~ ( in @ ( ordered_pair @ SY471 @ SY677 ) @ SV88 )
                | ( in @ SY677 @ SV294 ) ) )
        = $false )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1749]) ).

thf(1822,plain,
    ! [SV88: $i,SV294: $i] :
      ( ( ( ~ ! [SY679: $i] :
                ( ~ ( in @ SY679 @ SV294 )
                | ( in @ ( ordered_pair @ ( sK36_D @ SY679 @ SV294 @ SV88 ) @ SY679 ) @ SV88 ) ) )
        = $false )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1749]) ).

thf(1823,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 )
                  | ~ ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) ) )
              | ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
          | ~ ( ! [SY705: $i] :
                  ( ~ ( in @ SY705 @ SV295 )
                  | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SY705 ) )
              | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) ) )
        = $false )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1750]) ).

thf(1824,plain,
    ! [SV296: $i,SV331: $i] :
      ( ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY706: $i] :
                    ( ~ ( ~ ( in @ ( sK43_D @ SY706 @ SV331 @ SV296 ) @ SV296 )
                        | ~ ~ ( in @ SY706 @ ( sK43_D @ SY706 @ SV331 @ SV296 ) ) )
                    | ( in @ SY706 @ SV331 ) )
              | ~ ! [SY707: $i] :
                    ( ~ ( in @ SY707 @ SV331 )
                    | ! [SY685: $i] :
                        ( ~ ( in @ SY685 @ SV296 )
                        | ( in @ SY707 @ SY685 ) ) ) ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1751]) ).

thf(1825,plain,
    ! [SV297: $i,SV340: $i] :
      ( ( ( ( SV340
           != ( set_meet @ SV297 ) ) )
        = $true )
      | ( ( SV340 = empty_set )
        = $true )
      | ( ( SV297 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1752]) ).

thf(1826,plain,
    ! [SV298: $i,SV341: $i] :
      ( ( ( ( SV341 != empty_set ) )
        = $true )
      | ( ( SV341
          = ( set_meet @ SV298 ) )
        = $true )
      | ( ( SV298 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1753]) ).

thf(1827,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
              | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
               != SV89 ) )
          | ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
              | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
               != SV250 ) ) )
        = $false )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1754]) ).

thf(1828,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
        = $true )
      | ( ( ( ( sK27_D @ SV274 @ SV250 @ SV89 )
            = SV89 )
          | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
            = SV250 ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1755]) ).

thf(1829,plain,
    ! [SV251: $i,SV89: $i,SV275: $i] :
      ( ( ( ! [SY661: $i] :
              ( ~ ( in @ SY661 @ SV275 )
              | ( SY661 = SV89 )
              | ( SY661 = SV251 ) ) )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1756]) ).

thf(1830,plain,
    ! [SV251: $i,SV275: $i,SV89: $i] :
      ( ( ( ~ ( ~ ! [SY662: $i] :
                    ( ( SY662 != SV89 )
                    | ( in @ SY662 @ SV275 ) )
              | ~ ! [SY663: $i] :
                    ( ( SY663 != SV251 )
                    | ( in @ SY663 @ SV275 ) ) ) )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1757]) ).

thf(1831,plain,
    ! [SV299: $i,SV332: $i] :
      ( ( ( element @ SV332 @ SV299 )
        = $false )
      | ( ( in @ SV332 @ SV299 )
        = $true )
      | ( ( empty @ SV299 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1758]) ).

thf(1832,plain,
    ! [SV300: $i,SV333: $i] :
      ( ( ( in @ SV333 @ SV300 )
        = $false )
      | ( ( element @ SV333 @ SV300 )
        = $true )
      | ( ( empty @ SV300 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1759]) ).

thf(1833,plain,
    ! [SV301: $i,SV342: $i] :
      ( ( ( ~ ( element @ SV342 @ SV301 ) )
        = $true )
      | ( ( empty @ SV342 )
        = $true )
      | ( ( empty @ SV301 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1760]) ).

thf(1834,plain,
    ! [SV302: $i,SV343: $i] :
      ( ( ( ~ ( empty @ SV343 ) )
        = $true )
      | ( ( element @ SV343 @ SV302 )
        = $true )
      | ( ( empty @ SV302 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1761]) ).

thf(1835,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( relation @ SV344 ) )
        = $true )
      | ( ( ~ ( ~ ( ! [SY710: $i] :
                      ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SY710 ) @ SV90 )
                      | ~ ( in @ ( ordered_pair @ SY710 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
                  | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
                      | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
                  | ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) ) )
          | ( SV344
            = ( relation_composition @ SV90 @ SV195 ) ) )
        = $true )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1762]) ).

thf(1836,plain,
    ! [SV195: $i,SV90: $i,SV345: $i] :
      ( ( ( ~ ( relation @ SV345 ) )
        = $true )
      | ( ( ( SV345
           != ( relation_composition @ SV90 @ SV195 ) )
          | ~ ( ~ ! [SY711: $i,SY712: $i] :
                    ( ! [SY584: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY711 @ SY584 ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ SY584 @ SY712 ) @ SV195 ) )
                    | ( in @ ( ordered_pair @ SY711 @ SY712 ) @ SV345 ) )
              | ~ ! [SY714: $i,SY715: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY714 @ SY715 ) @ SV345 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY714 @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) @ SY715 ) @ SV195 ) ) ) ) )
        = $true )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1763]) ).

thf(1837,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
        = $false )
      | ( ( ~ ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 ) )
        = $true )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1764]) ).

thf(1838,plain,
    ! [SV199: $i,SV255: $i,SV357: $i] :
      ( ( ( ~ ( in @ SV357 @ SV255 )
          | ( subset @ SV357 @ SV199 ) )
        = $true )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1766]) ).

thf(1839,plain,
    ! [SV255: $i,SV199: $i,SV358: $i] :
      ( ( ( ~ ( subset @ SV358 @ SV199 )
          | ( in @ SV358 @ SV255 ) )
        = $true )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1767]) ).

thf(1840,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
              | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
              | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) ) )
        = $false )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1768]) ).

thf(1841,plain,
    ! [SV91: $i,SV304: $i] :
      ( ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY692: $i,SY693: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY692 @ SY693 ) @ SV304 )
                    | ( in @ ( ordered_pair @ SY693 @ SY692 ) @ SV91 ) )
              | ~ ! [SY694: $i,SY695: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY695 @ SY694 ) @ SV91 )
                    | ( in @ ( ordered_pair @ SY694 @ SY695 ) @ SV304 ) ) ) )
        = $true )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1769]) ).

thf(1842,plain,
    ! [SV334: $i,SV323: $i,SV93: $i] :
      ( ( ( subset @ ( unordered_pair @ SV93 @ SV323 ) @ SV334 )
        = $false )
      | ( ( in @ SV93 @ SV334 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1773]) ).

thf(1843,plain,
    ! [SV335: $i,SV324: $i,SV93: $i] :
      ( ( ( subset @ ( unordered_pair @ SV93 @ SV324 ) @ SV335 )
        = $false )
      | ( ( in @ SV324 @ SV335 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1774]) ).

thf(1844,plain,
    ! [SV309: $i,SV96: $i] :
      ( ( ( subset @ SV96 @ SV309 )
        = $false )
      | ( ( subset @ ( relation_dom @ SV96 ) @ ( relation_dom @ SV309 ) )
        = $true )
      | ( ( relation @ SV309 )
        = $false )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1777]) ).

thf(1845,plain,
    ! [SV310: $i,SV96: $i] :
      ( ( ( subset @ SV96 @ SV310 )
        = $false )
      | ( ( subset @ ( relation_rng @ SV96 ) @ ( relation_rng @ SV310 ) )
        = $true )
      | ( ( relation @ SV310 )
        = $false )
      | ( ( relation @ SV96 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1778]) ).

thf(1846,plain,
    ! [SV347: $i,SV336: $i,SV205: $i] :
      ( ( ( ( sK48_B @ SV205 )
          = ( ordered_pair @ SV336 @ SV347 ) )
        = $false )
      | ( ( relation @ SV205 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1779]) ).

thf(1847,plain,
    ! [SV348: $i,SV326: $i,SV142: $i,SV75: $i] :
      ( ( ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV326 @ SV348 ) )
        = $false )
      | ( ( in @ SV75 @ SV326 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1782]) ).

thf(1848,plain,
    ! [SV337: $i,SV327: $i,SV142: $i,SV75: $i] :
      ( ( ( in @ ( ordered_pair @ SV75 @ SV142 ) @ ( cartesian_product2 @ SV327 @ SV337 ) )
        = $false )
      | ( ( in @ SV142 @ SV337 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1783]) ).

thf(1849,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
              | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1784]) ).

thf(1850,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
              | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1784]) ).

thf(1851,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 )
        = $true )
      | ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 )
        = $true )
      | ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1785]) ).

thf(1852,plain,
    ! [SV224: $i,SV79: $i,SV266: $i,SV359: $i] :
      ( ( ( ~ ( in @ SV359 @ SV266 )
          | ( in @ SV359 @ SV79 )
          | ( in @ SV359 @ SV224 ) )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1786]) ).

thf(1853,plain,
    ! [SV224: $i,SV266: $i,SV79: $i] :
      ( ( ( ~ ! [SY646: $i] :
                ( ~ ( in @ SY646 @ SV79 )
                | ( in @ SY646 @ SV266 ) )
          | ~ ! [SY647: $i] :
                ( ~ ( in @ SY647 @ SV224 )
                | ( in @ SY647 @ SV266 ) ) )
        = $false )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1787]) ).

thf(1854,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 ) )
        = $true )
      | ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1789]) ).

thf(1855,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
              | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) ) )
        = $false )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1790]) ).

thf(1856,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
              | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) ) )
        = $false )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1790]) ).

thf(1857,plain,
    ! [SV268: $i,SV228: $i,SV80: $i,SV360: $i] :
      ( ( ( ~ ( in @ SV360 @ SV80 )
          | ( in @ SV360 @ SV228 )
          | ( in @ SV360 @ SV268 ) )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1791]) ).

thf(1858,plain,
    ! [SV228: $i,SV80: $i,SV268: $i] :
      ( ( ( ~ ! [SY649: $i] :
                ( ~ ( in @ SY649 @ SV268 )
                | ( in @ SY649 @ SV80 ) )
          | ~ ! [SY650: $i] :
                ( ~ ( in @ SY650 @ SV268 )
                | ~ ( in @ SY650 @ SV228 ) ) )
        = $false )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1792]) ).

thf(1859,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1793]) ).

thf(1860,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
              | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1794]) ).

thf(1861,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
              | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1794]) ).

thf(1862,plain,
    ! [SV270: $i,SV234: $i,SV81: $i,SV361: $i] :
      ( ( ( ~ ( in @ SV361 @ SV81 )
          | ~ ( in @ SV361 @ SV234 )
          | ( in @ SV361 @ SV270 ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1795]) ).

thf(1863,plain,
    ! [SV234: $i,SV81: $i,SV270: $i] :
      ( ( ( ~ ! [SY652: $i] :
                ( ~ ( in @ SY652 @ SV270 )
                | ( in @ SY652 @ SV81 ) )
          | ~ ! [SY653: $i] :
                ( ~ ( in @ SY653 @ SV270 )
                | ( in @ SY653 @ SV234 ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1796]) ).

thf(1864,plain,
    ! [SV362: $i,SV82: $i,SV349: $i] :
      ( ( ~ ( in @ SV349 @ ( sK32_B @ SV82 ) )
        | ~ ( subset @ SV362 @ SV349 )
        | ( in @ SV362 @ ( sK32_B @ SV82 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1797]) ).

thf(1865,plain,
    ! [SV350: $i,SV328: $i,SV144: $i,SV83: $i] :
      ( ( ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV328 @ SV350 ) )
        = $false )
      | ( ( in @ SV83 @ SV328 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1799]) ).

thf(1866,plain,
    ! [SV338: $i,SV329: $i,SV144: $i,SV83: $i] :
      ( ( ( in @ ( ordered_pair @ SV83 @ SV144 ) @ ( cartesian_product2 @ SV329 @ SV338 ) )
        = $false )
      | ( ( in @ SV144 @ SV338 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1800]) ).

thf(1867,plain,
    ! [SV180: $i,SV238: $i] :
      ( ( ( in @ ( sK29_C @ SV238 @ SV180 ) @ SV238 )
        = $false )
      | ( ( ( sK29_C @ SV238 @ SV180 )
          = SV180 )
        = $false )
      | ( ( SV238
          = ( singleton @ SV180 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1801]) ).

thf(1868,plain,
    ! [SV239: $i,SV181: $i,SV351: $i] :
      ( ( ( ( SV351 != SV181 ) )
        = $true )
      | ( ( in @ SV351 @ SV239 )
        = $true )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1802]) ).

thf(1869,plain,
    ! [SV181: $i,SV239: $i,SV352: $i] :
      ( ( ( ~ ( in @ SV352 @ SV239 ) )
        = $true )
      | ( ( SV352 = SV181 )
        = $true )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1803]) ).

thf(1870,plain,
    ! [SV353: $i,SV182: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV353 ) )
        = $true )
      | ( ( ~ ( in @ SV353 @ SV182 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1804]) ).

thf(1871,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ ( sK18_SY312 @ SV240 @ SV182 ) ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1805]) ).

thf(1872,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK18_SY312 @ SV240 @ SV182 ) @ SV182 ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1805]) ).

thf(1873,plain,
    ! [SV241: $i,SV183: $i,SV354: $i] :
      ( ( ( ! [SY717: $i] :
              ( ~ ( in @ SV354 @ SY717 )
              | ~ ( in @ SY717 @ SV183 ) ) )
        = $true )
      | ( ( in @ SV354 @ SV241 )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1806]) ).

thf(1874,plain,
    ! [SV183: $i,SV241: $i,SV355: $i] :
      ( ( ( ~ ( in @ SV355 @ SV241 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV355 @ ( sK16_D @ SV355 @ SV241 @ SV183 ) )
              | ~ ( in @ ( sK16_D @ SV355 @ SV241 @ SV183 ) @ SV183 ) ) )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1807]) ).

thf(1875,plain,
    ! [SV84: $i,SV321: $i] :
      ( ( ( ! [SY698: $i] :
              ( ~ ( subset @ SY698 @ SV321 )
              | ( in @ SY698 @ ( sK3_SY300 @ SV321 @ SV84 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1808]) ).

thf(1876,plain,
    ! [SV84: $i,SV321: $i] :
      ( ( ( in @ ( sK3_SY300 @ SV321 @ SV84 ) @ ( sK2_B @ SV84 ) )
        = $true )
      | ( ( ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1809]) ).

thf(1877,plain,
    ! [SV363: $i,SV84: $i,SV356: $i] :
      ( ( ~ ( in @ SV356 @ ( sK2_B @ SV84 ) )
        | ~ ( subset @ SV363 @ SV356 )
        | ( in @ SV363 @ ( sK2_B @ SV84 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1810]) ).

thf(1878,plain,
    ! [SV272: $i,SV244: $i,SV85: $i,SV364: $i] :
      ( ( ( ! [SY719: $i] :
              ( ~ ( in @ SV364 @ SV85 )
              | ~ ( in @ SY719 @ SV244 )
              | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
               != ( ordered_pair @ SV364 @ SY719 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1811]) ).

thf(1879,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
                | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) )
          | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
           != ( ordered_pair @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1812]) ).

thf(1880,plain,
    ! [SV273: $i,SV365: $i,SV245: $i,SV85: $i] :
      ( ( ( ! [SY720: $i,SY721: $i] :
              ( ~ ( in @ SY720 @ SV85 )
              | ~ ( in @ SY721 @ SV245 )
              | ( SV365
               != ( ordered_pair @ SY720 @ SY721 ) ) )
          | ( in @ SV365 @ SV273 ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1813]) ).

thf(1881,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( ~ ( in @ SV366 @ SV273 )
          | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                    | ~ ( in @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
              | ( SV366
               != ( ordered_pair @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) ) ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1814]) ).

thf(1882,plain,
    ! [SV86: $i,SV291: $i] :
      ( ( ( ! [SY672: $i] :
              ~ ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ SY672 ) @ SV86 ) )
        = $true )
      | ( ( ~ ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1815]) ).

thf(1883,plain,
    ! [SV86: $i,SV291: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ ( sK41_SY326 @ SV291 @ SV86 ) ) @ SV86 )
        = $true )
      | ( ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 )
        = $true )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1816]) ).

thf(1884,plain,
    ! [SV292: $i,SV86: $i] :
      ( ( ( ! [SY673: $i] :
              ( ! [SY465: $i] :
                  ~ ( in @ ( ordered_pair @ SY673 @ SY465 ) @ SV86 )
              | ( in @ SY673 @ SV292 ) ) )
        = $true )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1817]) ).

thf(1885,plain,
    ! [SV86: $i,SV292: $i] :
      ( ( ( ! [SY675: $i] :
              ( ~ ( in @ SY675 @ SV292 )
              | ( in @ ( ordered_pair @ SY675 @ ( sK39_D @ SY675 @ SV292 @ SV86 ) ) @ SV86 ) ) )
        = $true )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1818]) ).

thf(1886,plain,
    ! [SV88: $i,SV293: $i] :
      ( ( ( ! [SY676: $i] :
              ~ ( in @ ( ordered_pair @ SY676 @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 ) )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) )
        = $true )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1819]) ).

thf(1887,plain,
    ! [SV88: $i,SV293: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV293 @ SV88 ) @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
        = $true )
      | ( ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 )
        = $true )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1820]) ).

thf(1888,plain,
    ! [SV294: $i,SV88: $i] :
      ( ( ( ! [SY677: $i] :
              ( ! [SY471: $i] :
                  ~ ( in @ ( ordered_pair @ SY471 @ SY677 ) @ SV88 )
              | ( in @ SY677 @ SV294 ) ) )
        = $true )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1821]) ).

thf(1889,plain,
    ! [SV88: $i,SV294: $i] :
      ( ( ( ! [SY679: $i] :
              ( ~ ( in @ SY679 @ SV294 )
              | ( in @ ( ordered_pair @ ( sK36_D @ SY679 @ SV294 @ SV88 ) @ SY679 ) @ SV88 ) ) )
        = $true )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1822]) ).

thf(1890,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 )
                  | ~ ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) ) )
              | ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) ) )
        = $false )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1823]) ).

thf(1891,plain,
    ! [SV330: $i,SV295: $i] :
      ( ( ( ~ ( ! [SY705: $i] :
                  ( ~ ( in @ SY705 @ SV295 )
                  | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SY705 ) )
              | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) ) )
        = $false )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1823]) ).

thf(1892,plain,
    ! [SV296: $i,SV331: $i] :
      ( ( ( ~ ! [SY706: $i] :
                ( ~ ( ~ ( in @ ( sK43_D @ SY706 @ SV331 @ SV296 ) @ SV296 )
                    | ~ ~ ( in @ SY706 @ ( sK43_D @ SY706 @ SV331 @ SV296 ) ) )
                | ( in @ SY706 @ SV331 ) )
          | ~ ! [SY707: $i] :
                ( ~ ( in @ SY707 @ SV331 )
                | ! [SY685: $i] :
                    ( ~ ( in @ SY685 @ SV296 )
                    | ( in @ SY707 @ SY685 ) ) ) )
        = $false )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1824]) ).

thf(1893,plain,
    ! [SV297: $i,SV340: $i] :
      ( ( ( SV340
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV340 = empty_set )
        = $true )
      | ( ( SV297 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1825]) ).

thf(1894,plain,
    ! [SV298: $i,SV341: $i] :
      ( ( ( SV341 = empty_set )
        = $false )
      | ( ( SV341
          = ( set_meet @ SV298 ) )
        = $true )
      | ( ( SV298 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1826]) ).

thf(1895,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
              | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
               != SV89 ) ) )
        = $false )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1827]) ).

thf(1896,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
              | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
               != SV250 ) ) )
        = $false )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1827]) ).

thf(1897,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ( sK27_D @ SV274 @ SV250 @ SV89 )
          = SV89 )
        = $true )
      | ( ( ( sK27_D @ SV274 @ SV250 @ SV89 )
          = SV250 )
        = $true )
      | ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1828]) ).

thf(1898,plain,
    ! [SV251: $i,SV89: $i,SV275: $i,SV367: $i] :
      ( ( ( ~ ( in @ SV367 @ SV275 )
          | ( SV367 = SV89 )
          | ( SV367 = SV251 ) )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1829]) ).

thf(1899,plain,
    ! [SV251: $i,SV275: $i,SV89: $i] :
      ( ( ( ~ ! [SY662: $i] :
                ( ( SY662 != SV89 )
                | ( in @ SY662 @ SV275 ) )
          | ~ ! [SY663: $i] :
                ( ( SY663 != SV251 )
                | ( in @ SY663 @ SV275 ) ) )
        = $false )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1830]) ).

thf(1900,plain,
    ! [SV301: $i,SV342: $i] :
      ( ( ( element @ SV342 @ SV301 )
        = $false )
      | ( ( empty @ SV342 )
        = $true )
      | ( ( empty @ SV301 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1833]) ).

thf(1901,plain,
    ! [SV302: $i,SV343: $i] :
      ( ( ( empty @ SV343 )
        = $false )
      | ( ( element @ SV343 @ SV302 )
        = $true )
      | ( ( empty @ SV302 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1834]) ).

thf(1902,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( relation @ SV344 )
        = $false )
      | ( ( ~ ( ~ ( ! [SY710: $i] :
                      ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SY710 ) @ SV90 )
                      | ~ ( in @ ( ordered_pair @ SY710 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
                  | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
                      | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
                  | ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) ) )
          | ( SV344
            = ( relation_composition @ SV90 @ SV195 ) ) )
        = $true )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1835]) ).

thf(1903,plain,
    ! [SV195: $i,SV90: $i,SV345: $i] :
      ( ( ( relation @ SV345 )
        = $false )
      | ( ( ( SV345
           != ( relation_composition @ SV90 @ SV195 ) )
          | ~ ( ~ ! [SY711: $i,SY712: $i] :
                    ( ! [SY584: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY711 @ SY584 ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ SY584 @ SY712 ) @ SV195 ) )
                    | ( in @ ( ordered_pair @ SY711 @ SY712 ) @ SV345 ) )
              | ~ ! [SY714: $i,SY715: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY714 @ SY715 ) @ SV345 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY714 @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) @ SY715 ) @ SV195 ) ) ) ) )
        = $true )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1836]) ).

thf(1904,plain,
    ! [SV198: $i,SV254: $i] :
      ( ( ( subset @ ( sK28_C @ SV254 @ SV198 ) @ SV198 )
        = $false )
      | ( ( in @ ( sK28_C @ SV254 @ SV198 ) @ SV254 )
        = $false )
      | ( ( SV254
          = ( powerset @ SV198 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1837]) ).

thf(1905,plain,
    ! [SV199: $i,SV255: $i,SV357: $i] :
      ( ( ( ~ ( in @ SV357 @ SV255 ) )
        = $true )
      | ( ( subset @ SV357 @ SV199 )
        = $true )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1838]) ).

thf(1906,plain,
    ! [SV255: $i,SV199: $i,SV358: $i] :
      ( ( ( ~ ( subset @ SV358 @ SV199 ) )
        = $true )
      | ( ( in @ SV358 @ SV255 )
        = $true )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1839]) ).

thf(1907,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
              | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) ) )
        = $false )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1840]) ).

thf(1908,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
              | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) ) )
        = $false )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1840]) ).

thf(1909,plain,
    ! [SV91: $i,SV304: $i] :
      ( ( ( ~ ! [SY692: $i,SY693: $i] :
                ( ~ ( in @ ( ordered_pair @ SY692 @ SY693 ) @ SV304 )
                | ( in @ ( ordered_pair @ SY693 @ SY692 ) @ SV91 ) )
          | ~ ! [SY694: $i,SY695: $i] :
                ( ~ ( in @ ( ordered_pair @ SY695 @ SY694 ) @ SV91 )
                | ( in @ ( ordered_pair @ SY694 @ SY695 ) @ SV304 ) ) )
        = $false )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1841]) ).

thf(1910,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
          | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1849]) ).

thf(1911,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
          | ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1850]) ).

thf(1912,plain,
    ! [SV224: $i,SV79: $i,SV266: $i,SV359: $i] :
      ( ( ( ~ ( in @ SV359 @ SV266 ) )
        = $true )
      | ( ( ( in @ SV359 @ SV79 )
          | ( in @ SV359 @ SV224 ) )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1852]) ).

thf(1913,plain,
    ! [SV224: $i,SV266: $i,SV79: $i] :
      ( ( ( ~ ! [SY646: $i] :
                ( ~ ( in @ SY646 @ SV79 )
                | ( in @ SY646 @ SV266 ) ) )
        = $false )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1853]) ).

thf(1914,plain,
    ! [SV79: $i,SV266: $i,SV224: $i] :
      ( ( ( ~ ! [SY647: $i] :
                ( ~ ( in @ SY647 @ SV224 )
                | ( in @ SY647 @ SV266 ) ) )
        = $false )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1853]) ).

thf(1915,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
        = $false )
      | ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1854]) ).

thf(1916,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
          | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1855]) ).

thf(1917,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
          | ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 ) )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1856]) ).

thf(1918,plain,
    ! [SV268: $i,SV228: $i,SV80: $i,SV360: $i] :
      ( ( ( ~ ( in @ SV360 @ SV80 )
          | ( in @ SV360 @ SV228 ) )
        = $true )
      | ( ( in @ SV360 @ SV268 )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1857]) ).

thf(1919,plain,
    ! [SV228: $i,SV80: $i,SV268: $i] :
      ( ( ( ~ ! [SY649: $i] :
                ( ~ ( in @ SY649 @ SV268 )
                | ( in @ SY649 @ SV80 ) ) )
        = $false )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1858]) ).

thf(1920,plain,
    ! [SV80: $i,SV228: $i,SV268: $i] :
      ( ( ( ~ ! [SY650: $i] :
                ( ~ ( in @ SY650 @ SV268 )
                | ~ ( in @ SY650 @ SV228 ) ) )
        = $false )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1858]) ).

thf(1921,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1859]) ).

thf(1922,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
          | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1860]) ).

thf(1923,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
          | ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1861]) ).

thf(1924,plain,
    ! [SV270: $i,SV234: $i,SV81: $i,SV361: $i] :
      ( ( ( ~ ( in @ SV361 @ SV81 )
          | ~ ( in @ SV361 @ SV234 ) )
        = $true )
      | ( ( in @ SV361 @ SV270 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1862]) ).

thf(1925,plain,
    ! [SV234: $i,SV81: $i,SV270: $i] :
      ( ( ( ~ ! [SY652: $i] :
                ( ~ ( in @ SY652 @ SV270 )
                | ( in @ SY652 @ SV81 ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1863]) ).

thf(1926,plain,
    ! [SV81: $i,SV234: $i,SV270: $i] :
      ( ( ( ~ ! [SY653: $i] :
                ( ~ ( in @ SY653 @ SV270 )
                | ( in @ SY653 @ SV234 ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1863]) ).

thf(1927,plain,
    ! [SV362: $i,SV82: $i,SV349: $i] :
      ( ( ( ~ ( in @ SV349 @ ( sK32_B @ SV82 ) )
          | ~ ( subset @ SV362 @ SV349 ) )
        = $true )
      | ( ( in @ SV362 @ ( sK32_B @ SV82 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1864]) ).

thf(1928,plain,
    ! [SV239: $i,SV181: $i,SV351: $i] :
      ( ( ( SV351 = SV181 )
        = $false )
      | ( ( in @ SV351 @ SV239 )
        = $true )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1868]) ).

thf(1929,plain,
    ! [SV181: $i,SV239: $i,SV352: $i] :
      ( ( ( in @ SV352 @ SV239 )
        = $false )
      | ( ( SV352 = SV181 )
        = $true )
      | ( ( SV239
          = ( singleton @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1869]) ).

thf(1930,plain,
    ! [SV353: $i,SV182: $i,SV240: $i] :
      ( ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV353 )
        = $false )
      | ( ( ~ ( in @ SV353 @ SV182 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1870]) ).

thf(1931,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ ( sK18_SY312 @ SV240 @ SV182 ) )
        = $true )
      | ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1871]) ).

thf(1932,plain,
    ! [SV182: $i,SV240: $i] :
      ( ( ( in @ ( sK18_SY312 @ SV240 @ SV182 ) @ SV182 )
        = $true )
      | ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1872]) ).

thf(1933,plain,
    ! [SV241: $i,SV183: $i,SV368: $i,SV354: $i] :
      ( ( ( ~ ( in @ SV354 @ SV368 )
          | ~ ( in @ SV368 @ SV183 ) )
        = $true )
      | ( ( in @ SV354 @ SV241 )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1873]) ).

thf(1934,plain,
    ! [SV183: $i,SV241: $i,SV355: $i] :
      ( ( ( in @ SV355 @ SV241 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV355 @ ( sK16_D @ SV355 @ SV241 @ SV183 ) )
              | ~ ( in @ ( sK16_D @ SV355 @ SV241 @ SV183 ) @ SV183 ) ) )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1874]) ).

thf(1935,plain,
    ! [SV84: $i,SV321: $i,SV369: $i] :
      ( ( ( ~ ( subset @ SV369 @ SV321 )
          | ( in @ SV369 @ ( sK3_SY300 @ SV321 @ SV84 ) ) )
        = $true )
      | ( ( ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1875]) ).

thf(1936,plain,
    ! [SV84: $i,SV321: $i] :
      ( ( ( in @ SV321 @ ( sK2_B @ SV84 ) )
        = $false )
      | ( ( in @ ( sK3_SY300 @ SV321 @ SV84 ) @ ( sK2_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1876]) ).

thf(1937,plain,
    ! [SV363: $i,SV84: $i,SV356: $i] :
      ( ( ( ~ ( in @ SV356 @ ( sK2_B @ SV84 ) )
          | ~ ( subset @ SV363 @ SV356 ) )
        = $true )
      | ( ( in @ SV363 @ ( sK2_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1877]) ).

thf(1938,plain,
    ! [SV272: $i,SV244: $i,SV370: $i,SV85: $i,SV364: $i] :
      ( ( ( ~ ( in @ SV364 @ SV85 )
          | ~ ( in @ SV370 @ SV244 )
          | ( ( sK23_D @ SV272 @ SV244 @ SV85 )
           != ( ordered_pair @ SV364 @ SV370 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1878]) ).

thf(1939,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
                | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1879]) ).

thf(1940,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ( ( sK23_D @ SV272 @ SV244 @ SV85 )
           != ( ordered_pair @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1879]) ).

thf(1941,plain,
    ! [SV273: $i,SV365: $i,SV245: $i,SV85: $i] :
      ( ( ( ! [SY720: $i,SY721: $i] :
              ( ~ ( in @ SY720 @ SV85 )
              | ~ ( in @ SY721 @ SV245 )
              | ( SV365
               != ( ordered_pair @ SY720 @ SY721 ) ) ) )
        = $true )
      | ( ( in @ SV365 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1880]) ).

thf(1942,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( ~ ( in @ SV366 @ SV273 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                    | ~ ( in @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
              | ( SV366
               != ( ordered_pair @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) ) ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1881]) ).

thf(1943,plain,
    ! [SV371: $i,SV86: $i,SV291: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ SV371 ) @ SV86 ) )
        = $true )
      | ( ( ~ ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1882]) ).

thf(1944,plain,
    ! [SV292: $i,SV86: $i,SV372: $i] :
      ( ( ( ! [SY722: $i] :
              ~ ( in @ ( ordered_pair @ SV372 @ SY722 ) @ SV86 )
          | ( in @ SV372 @ SV292 ) )
        = $true )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1884]) ).

thf(1945,plain,
    ! [SV86: $i,SV292: $i,SV373: $i] :
      ( ( ( ~ ( in @ SV373 @ SV292 )
          | ( in @ ( ordered_pair @ SV373 @ ( sK39_D @ SV373 @ SV292 @ SV86 ) ) @ SV86 ) )
        = $true )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1885]) ).

thf(1946,plain,
    ! [SV88: $i,SV293: $i,SV374: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV374 @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 ) )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) )
        = $true )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1886]) ).

thf(1947,plain,
    ! [SV294: $i,SV88: $i,SV375: $i] :
      ( ( ( ! [SY723: $i] :
              ~ ( in @ ( ordered_pair @ SY723 @ SV375 ) @ SV88 )
          | ( in @ SV375 @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1888]) ).

thf(1948,plain,
    ! [SV88: $i,SV294: $i,SV376: $i] :
      ( ( ( ~ ( in @ SV376 @ SV294 )
          | ( in @ ( ordered_pair @ ( sK36_D @ SV376 @ SV294 @ SV88 ) @ SV376 ) @ SV88 ) )
        = $true )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1889]) ).

thf(1949,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 )
              | ~ ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) ) )
          | ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1890]) ).

thf(1950,plain,
    ! [SV330: $i,SV295: $i] :
      ( ( ( ! [SY705: $i] :
              ( ~ ( in @ SY705 @ SV295 )
              | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SY705 ) )
          | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1891]) ).

thf(1951,plain,
    ! [SV296: $i,SV331: $i] :
      ( ( ( ~ ! [SY706: $i] :
                ( ~ ( ~ ( in @ ( sK43_D @ SY706 @ SV331 @ SV296 ) @ SV296 )
                    | ~ ~ ( in @ SY706 @ ( sK43_D @ SY706 @ SV331 @ SV296 ) ) )
                | ( in @ SY706 @ SV331 ) ) )
        = $false )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1892]) ).

thf(1952,plain,
    ! [SV296: $i,SV331: $i] :
      ( ( ( ~ ! [SY707: $i] :
                ( ~ ( in @ SY707 @ SV331 )
                | ! [SY685: $i] :
                    ( ~ ( in @ SY685 @ SV296 )
                    | ( in @ SY707 @ SY685 ) ) ) )
        = $false )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1892]) ).

thf(1953,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
          | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
           != SV89 ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1895]) ).

thf(1954,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
          | ( ( sK27_D @ SV274 @ SV250 @ SV89 )
           != SV250 ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1896]) ).

thf(1955,plain,
    ! [SV251: $i,SV89: $i,SV275: $i,SV367: $i] :
      ( ( ( ~ ( in @ SV367 @ SV275 ) )
        = $true )
      | ( ( ( SV367 = SV89 )
          | ( SV367 = SV251 ) )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1898]) ).

thf(1956,plain,
    ! [SV251: $i,SV275: $i,SV89: $i] :
      ( ( ( ~ ! [SY662: $i] :
                ( ( SY662 != SV89 )
                | ( in @ SY662 @ SV275 ) ) )
        = $false )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1899]) ).

thf(1957,plain,
    ! [SV89: $i,SV275: $i,SV251: $i] :
      ( ( ( ~ ! [SY663: $i] :
                ( ( SY663 != SV251 )
                | ( in @ SY663 @ SV275 ) ) )
        = $false )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1899]) ).

thf(1958,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( ~ ( ! [SY710: $i] :
                      ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SY710 ) @ SV90 )
                      | ~ ( in @ ( ordered_pair @ SY710 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
                  | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
                      | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
                  | ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) ) ) )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1902]) ).

thf(1959,plain,
    ! [SV195: $i,SV90: $i,SV345: $i] :
      ( ( ( ( SV345
           != ( relation_composition @ SV90 @ SV195 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY711: $i,SY712: $i] :
                    ( ! [SY584: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY711 @ SY584 ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ SY584 @ SY712 ) @ SV195 ) )
                    | ( in @ ( ordered_pair @ SY711 @ SY712 ) @ SV345 ) )
              | ~ ! [SY714: $i,SY715: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY714 @ SY715 ) @ SV345 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY714 @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) @ SY715 ) @ SV195 ) ) ) ) )
        = $true )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1903]) ).

thf(1960,plain,
    ! [SV199: $i,SV255: $i,SV357: $i] :
      ( ( ( in @ SV357 @ SV255 )
        = $false )
      | ( ( subset @ SV357 @ SV199 )
        = $true )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1905]) ).

thf(1961,plain,
    ! [SV255: $i,SV199: $i,SV358: $i] :
      ( ( ( subset @ SV358 @ SV199 )
        = $false )
      | ( ( in @ SV358 @ SV255 )
        = $true )
      | ( ( SV255
          = ( powerset @ SV199 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1906]) ).

thf(1962,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
          | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) )
        = $true )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1907]) ).

thf(1963,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
          | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) )
        = $true )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1908]) ).

thf(1964,plain,
    ! [SV91: $i,SV304: $i] :
      ( ( ( ~ ! [SY692: $i,SY693: $i] :
                ( ~ ( in @ ( ordered_pair @ SY692 @ SY693 ) @ SV304 )
                | ( in @ ( ordered_pair @ SY693 @ SY692 ) @ SV91 ) ) )
        = $false )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1909]) ).

thf(1965,plain,
    ! [SV304: $i,SV91: $i] :
      ( ( ( ~ ! [SY694: $i,SY695: $i] :
                ( ~ ( in @ ( ordered_pair @ SY695 @ SY694 ) @ SV91 )
                | ( in @ ( ordered_pair @ SY694 @ SY695 ) @ SV304 ) ) )
        = $false )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1909]) ).

thf(1966,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 ) )
        = $true )
      | ( ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1910]) ).

thf(1967,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 ) )
        = $true )
      | ( ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1911]) ).

thf(1968,plain,
    ! [SV224: $i,SV79: $i,SV266: $i,SV359: $i] :
      ( ( ( in @ SV359 @ SV266 )
        = $false )
      | ( ( ( in @ SV359 @ SV79 )
          | ( in @ SV359 @ SV224 ) )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1912]) ).

thf(1969,plain,
    ! [SV224: $i,SV266: $i,SV79: $i] :
      ( ( ( ! [SY646: $i] :
              ( ~ ( in @ SY646 @ SV79 )
              | ( in @ SY646 @ SV266 ) ) )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1913]) ).

thf(1970,plain,
    ! [SV79: $i,SV266: $i,SV224: $i] :
      ( ( ( ! [SY647: $i] :
              ( ~ ( in @ SY647 @ SV224 )
              | ( in @ SY647 @ SV266 ) ) )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1914]) ).

thf(1971,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 )
        = $false )
      | ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
        = $true )
      | ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
        = $false )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1915]) ).

thf(1972,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV80 )
        = $true )
      | ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1916]) ).

thf(1973,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 ) )
        = $true )
      | ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1917]) ).

thf(1974,plain,
    ! [SV268: $i,SV228: $i,SV80: $i,SV360: $i] :
      ( ( ( ~ ( in @ SV360 @ SV80 ) )
        = $true )
      | ( ( in @ SV360 @ SV228 )
        = $true )
      | ( ( in @ SV360 @ SV268 )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1918]) ).

thf(1975,plain,
    ! [SV228: $i,SV80: $i,SV268: $i] :
      ( ( ( ! [SY649: $i] :
              ( ~ ( in @ SY649 @ SV268 )
              | ( in @ SY649 @ SV80 ) ) )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1919]) ).

thf(1976,plain,
    ! [SV80: $i,SV228: $i,SV268: $i] :
      ( ( ( ! [SY650: $i] :
              ( ~ ( in @ SY650 @ SV268 )
              | ~ ( in @ SY650 @ SV228 ) ) )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1920]) ).

thf(1977,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
        = $false )
      | ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1921]) ).

thf(1978,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
        = $true )
      | ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1922]) ).

thf(1979,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
        = $true )
      | ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1923]) ).

thf(1980,plain,
    ! [SV270: $i,SV234: $i,SV81: $i,SV361: $i] :
      ( ( ( ~ ( in @ SV361 @ SV81 ) )
        = $true )
      | ( ( ~ ( in @ SV361 @ SV234 ) )
        = $true )
      | ( ( in @ SV361 @ SV270 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1924]) ).

thf(1981,plain,
    ! [SV234: $i,SV81: $i,SV270: $i] :
      ( ( ( ! [SY652: $i] :
              ( ~ ( in @ SY652 @ SV270 )
              | ( in @ SY652 @ SV81 ) ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1925]) ).

thf(1982,plain,
    ! [SV81: $i,SV234: $i,SV270: $i] :
      ( ( ( ! [SY653: $i] :
              ( ~ ( in @ SY653 @ SV270 )
              | ( in @ SY653 @ SV234 ) ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1926]) ).

thf(1983,plain,
    ! [SV362: $i,SV82: $i,SV349: $i] :
      ( ( ( ~ ( in @ SV349 @ ( sK32_B @ SV82 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV362 @ SV349 ) )
        = $true )
      | ( ( in @ SV362 @ ( sK32_B @ SV82 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1927]) ).

thf(1984,plain,
    ! [SV240: $i,SV182: $i,SV353: $i] :
      ( ( ( in @ SV353 @ SV182 )
        = $false )
      | ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV353 )
        = $false )
      | ( ( ~ ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 ) )
        = $true )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1930]) ).

thf(1985,plain,
    ! [SV241: $i,SV183: $i,SV368: $i,SV354: $i] :
      ( ( ( ~ ( in @ SV354 @ SV368 ) )
        = $true )
      | ( ( ~ ( in @ SV368 @ SV183 ) )
        = $true )
      | ( ( in @ SV354 @ SV241 )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1933]) ).

thf(1986,plain,
    ! [SV183: $i,SV241: $i,SV355: $i] :
      ( ( ( ~ ( in @ SV355 @ ( sK16_D @ SV355 @ SV241 @ SV183 ) )
          | ~ ( in @ ( sK16_D @ SV355 @ SV241 @ SV183 ) @ SV183 ) )
        = $false )
      | ( ( in @ SV355 @ SV241 )
        = $false )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1934]) ).

thf(1987,plain,
    ! [SV84: $i,SV321: $i,SV369: $i] :
      ( ( ( ~ ( subset @ SV369 @ SV321 ) )
        = $true )
      | ( ( in @ SV369 @ ( sK3_SY300 @ SV321 @ SV84 ) )
        = $true )
      | ( ( ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1935]) ).

thf(1988,plain,
    ! [SV363: $i,SV84: $i,SV356: $i] :
      ( ( ( ~ ( in @ SV356 @ ( sK2_B @ SV84 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV363 @ SV356 ) )
        = $true )
      | ( ( in @ SV363 @ ( sK2_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1937]) ).

thf(1989,plain,
    ! [SV272: $i,SV244: $i,SV370: $i,SV85: $i,SV364: $i] :
      ( ( ( ~ ( in @ SV364 @ SV85 )
          | ~ ( in @ SV370 @ SV244 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV272 @ SV244 @ SV85 )
           != ( ordered_pair @ SV364 @ SV370 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1938]) ).

thf(1990,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
              | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1939]) ).

thf(1991,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ( sK23_D @ SV272 @ SV244 @ SV85 )
          = ( ordered_pair @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1940]) ).

thf(1992,plain,
    ! [SV273: $i,SV365: $i,SV245: $i,SV85: $i,SV377: $i] :
      ( ( ( ! [SY724: $i] :
              ( ~ ( in @ SV377 @ SV85 )
              | ~ ( in @ SY724 @ SV245 )
              | ( SV365
               != ( ordered_pair @ SV377 @ SY724 ) ) ) )
        = $true )
      | ( ( in @ SV365 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1941]) ).

thf(1993,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                    | ~ ( in @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
              | ( SV366
               != ( ordered_pair @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) ) ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1942]) ).

thf(1994,plain,
    ! [SV371: $i,SV86: $i,SV291: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ SV371 ) @ SV86 )
        = $false )
      | ( ( ~ ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1943]) ).

thf(1995,plain,
    ! [SV292: $i,SV86: $i,SV372: $i] :
      ( ( ( ! [SY722: $i] :
              ~ ( in @ ( ordered_pair @ SV372 @ SY722 ) @ SV86 ) )
        = $true )
      | ( ( in @ SV372 @ SV292 )
        = $true )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1944]) ).

thf(1996,plain,
    ! [SV86: $i,SV292: $i,SV373: $i] :
      ( ( ( ~ ( in @ SV373 @ SV292 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV373 @ ( sK39_D @ SV373 @ SV292 @ SV86 ) ) @ SV86 )
        = $true )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1945]) ).

thf(1997,plain,
    ! [SV88: $i,SV293: $i,SV374: $i] :
      ( ( ( in @ ( ordered_pair @ SV374 @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 ) )
        = $true )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1946]) ).

thf(1998,plain,
    ! [SV294: $i,SV88: $i,SV375: $i] :
      ( ( ( ! [SY723: $i] :
              ~ ( in @ ( ordered_pair @ SY723 @ SV375 ) @ SV88 ) )
        = $true )
      | ( ( in @ SV375 @ SV294 )
        = $true )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1947]) ).

thf(1999,plain,
    ! [SV88: $i,SV294: $i,SV376: $i] :
      ( ( ( ~ ( in @ SV376 @ SV294 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK36_D @ SV376 @ SV294 @ SV88 ) @ SV376 ) @ SV88 )
        = $true )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1948]) ).

thf(2000,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 )
              | ~ ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1949]) ).

thf(2001,plain,
    ! [SV330: $i,SV295: $i] :
      ( ( ( ! [SY705: $i] :
              ( ~ ( in @ SY705 @ SV295 )
              | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SY705 ) ) )
        = $true )
      | ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1950]) ).

thf(2002,plain,
    ! [SV296: $i,SV331: $i] :
      ( ( ( ! [SY706: $i] :
              ( ~ ( ~ ( in @ ( sK43_D @ SY706 @ SV331 @ SV296 ) @ SV296 )
                  | ~ ~ ( in @ SY706 @ ( sK43_D @ SY706 @ SV331 @ SV296 ) ) )
              | ( in @ SY706 @ SV331 ) ) )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1951]) ).

thf(2003,plain,
    ! [SV296: $i,SV331: $i] :
      ( ( ( ! [SY707: $i] :
              ( ~ ( in @ SY707 @ SV331 )
              | ! [SY685: $i] :
                  ( ~ ( in @ SY685 @ SV296 )
                  | ( in @ SY707 @ SY685 ) ) ) )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1952]) ).

thf(2004,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 ) )
        = $true )
      | ( ( ( ( sK27_D @ SV274 @ SV250 @ SV89 )
           != SV89 ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1953]) ).

thf(2005,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 ) )
        = $true )
      | ( ( ( ( sK27_D @ SV274 @ SV250 @ SV89 )
           != SV250 ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1954]) ).

thf(2006,plain,
    ! [SV251: $i,SV89: $i,SV275: $i,SV367: $i] :
      ( ( ( in @ SV367 @ SV275 )
        = $false )
      | ( ( ( SV367 = SV89 )
          | ( SV367 = SV251 ) )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1955]) ).

thf(2007,plain,
    ! [SV251: $i,SV275: $i,SV89: $i] :
      ( ( ( ! [SY662: $i] :
              ( ( SY662 != SV89 )
              | ( in @ SY662 @ SV275 ) ) )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1956]) ).

thf(2008,plain,
    ! [SV89: $i,SV275: $i,SV251: $i] :
      ( ( ( ! [SY663: $i] :
              ( ( SY663 != SV251 )
              | ( in @ SY663 @ SV275 ) ) )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1957]) ).

thf(2009,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( ! [SY710: $i] :
                  ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SY710 ) @ SV90 )
                  | ~ ( in @ ( ordered_pair @ SY710 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
              | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
          | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
                  | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
              | ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) ) )
        = $false )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1958]) ).

thf(2010,plain,
    ! [SV195: $i,SV90: $i,SV345: $i] :
      ( ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY711: $i,SY712: $i] :
                    ( ! [SY584: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY711 @ SY584 ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ SY584 @ SY712 ) @ SV195 ) )
                    | ( in @ ( ordered_pair @ SY711 @ SY712 ) @ SV345 ) )
              | ~ ! [SY714: $i,SY715: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY714 @ SY715 ) @ SV345 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY714 @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) @ SY715 ) @ SV195 ) ) ) ) )
        = $true )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1959]) ).

thf(2011,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) )
        = $true )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1962]) ).

thf(2012,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 )
        = $true )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1963]) ).

thf(2013,plain,
    ! [SV91: $i,SV304: $i] :
      ( ( ( ! [SY692: $i,SY693: $i] :
              ( ~ ( in @ ( ordered_pair @ SY692 @ SY693 ) @ SV304 )
              | ( in @ ( ordered_pair @ SY693 @ SY692 ) @ SV91 ) ) )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1964]) ).

thf(2014,plain,
    ! [SV304: $i,SV91: $i] :
      ( ( ( ! [SY694: $i,SY695: $i] :
              ( ~ ( in @ ( ordered_pair @ SY695 @ SY694 ) @ SV91 )
              | ( in @ ( ordered_pair @ SY694 @ SY695 ) @ SV304 ) ) )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1965]) ).

thf(2015,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
        = $false )
      | ( ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1966]) ).

thf(2016,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
        = $false )
      | ( ( ~ ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1967]) ).

thf(2017,plain,
    ! [SV266: $i,SV224: $i,SV79: $i,SV359: $i] :
      ( ( ( in @ SV359 @ SV79 )
        = $true )
      | ( ( in @ SV359 @ SV224 )
        = $true )
      | ( ( in @ SV359 @ SV266 )
        = $false )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1968]) ).

thf(2018,plain,
    ! [SV224: $i,SV266: $i,SV79: $i,SV378: $i] :
      ( ( ( ~ ( in @ SV378 @ SV79 )
          | ( in @ SV378 @ SV266 ) )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1969]) ).

thf(2019,plain,
    ! [SV79: $i,SV266: $i,SV224: $i,SV379: $i] :
      ( ( ( ~ ( in @ SV379 @ SV224 )
          | ( in @ SV379 @ SV266 ) )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1970]) ).

thf(2020,plain,
    ! [SV80: $i,SV227: $i,SV267: $i] :
      ( ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV227 )
        = $false )
      | ( ( in @ ( sK15_D @ SV267 @ SV227 @ SV80 ) @ SV267 )
        = $true )
      | ( ( SV267
          = ( set_difference @ SV80 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1973]) ).

thf(2021,plain,
    ! [SV268: $i,SV228: $i,SV80: $i,SV360: $i] :
      ( ( ( in @ SV360 @ SV80 )
        = $false )
      | ( ( in @ SV360 @ SV228 )
        = $true )
      | ( ( in @ SV360 @ SV268 )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1974]) ).

thf(2022,plain,
    ! [SV228: $i,SV80: $i,SV268: $i,SV380: $i] :
      ( ( ( ~ ( in @ SV380 @ SV268 )
          | ( in @ SV380 @ SV80 ) )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1975]) ).

thf(2023,plain,
    ! [SV80: $i,SV228: $i,SV268: $i,SV381: $i] :
      ( ( ( ~ ( in @ SV381 @ SV268 )
          | ~ ( in @ SV381 @ SV228 ) )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1976]) ).

thf(2024,plain,
    ! [SV81: $i,SV233: $i,SV269: $i] :
      ( ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV269 )
        = $false )
      | ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV81 )
        = $false )
      | ( ( in @ ( sK19_D @ SV269 @ SV233 @ SV81 ) @ SV233 )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV81 @ SV233 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1977]) ).

thf(2025,plain,
    ! [SV270: $i,SV234: $i,SV81: $i,SV361: $i] :
      ( ( ( in @ SV361 @ SV81 )
        = $false )
      | ( ( ~ ( in @ SV361 @ SV234 ) )
        = $true )
      | ( ( in @ SV361 @ SV270 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1980]) ).

thf(2026,plain,
    ! [SV234: $i,SV81: $i,SV270: $i,SV382: $i] :
      ( ( ( ~ ( in @ SV382 @ SV270 )
          | ( in @ SV382 @ SV81 ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1981]) ).

thf(2027,plain,
    ! [SV81: $i,SV234: $i,SV270: $i,SV383: $i] :
      ( ( ( ~ ( in @ SV383 @ SV270 )
          | ( in @ SV383 @ SV234 ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1982]) ).

thf(2028,plain,
    ! [SV362: $i,SV82: $i,SV349: $i] :
      ( ( ( in @ SV349 @ ( sK32_B @ SV82 ) )
        = $false )
      | ( ( ~ ( subset @ SV362 @ SV349 ) )
        = $true )
      | ( ( in @ SV362 @ ( sK32_B @ SV82 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1983]) ).

thf(2029,plain,
    ! [SV353: $i,SV182: $i,SV240: $i] :
      ( ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV240 )
        = $false )
      | ( ( in @ ( sK17_C @ SV240 @ SV182 ) @ SV353 )
        = $false )
      | ( ( in @ SV353 @ SV182 )
        = $false )
      | ( ( SV240
          = ( union @ SV182 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1984]) ).

thf(2030,plain,
    ! [SV241: $i,SV183: $i,SV368: $i,SV354: $i] :
      ( ( ( in @ SV354 @ SV368 )
        = $false )
      | ( ( ~ ( in @ SV368 @ SV183 ) )
        = $true )
      | ( ( in @ SV354 @ SV241 )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1985]) ).

thf(2031,plain,
    ! [SV183: $i,SV241: $i,SV355: $i] :
      ( ( ( ~ ( in @ SV355 @ ( sK16_D @ SV355 @ SV241 @ SV183 ) ) )
        = $false )
      | ( ( in @ SV355 @ SV241 )
        = $false )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1986]) ).

thf(2032,plain,
    ! [SV183: $i,SV241: $i,SV355: $i] :
      ( ( ( ~ ( in @ ( sK16_D @ SV355 @ SV241 @ SV183 ) @ SV183 ) )
        = $false )
      | ( ( in @ SV355 @ SV241 )
        = $false )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1986]) ).

thf(2033,plain,
    ! [SV84: $i,SV321: $i,SV369: $i] :
      ( ( ( subset @ SV369 @ SV321 )
        = $false )
      | ( ( in @ SV369 @ ( sK3_SY300 @ SV321 @ SV84 ) )
        = $true )
      | ( ( ~ ( in @ SV321 @ ( sK2_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1987]) ).

thf(2034,plain,
    ! [SV363: $i,SV84: $i,SV356: $i] :
      ( ( ( in @ SV356 @ ( sK2_B @ SV84 ) )
        = $false )
      | ( ( ~ ( subset @ SV363 @ SV356 ) )
        = $true )
      | ( ( in @ SV363 @ ( sK2_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1988]) ).

thf(2035,plain,
    ! [SV272: $i,SV244: $i,SV370: $i,SV85: $i,SV364: $i] :
      ( ( ( ~ ( in @ SV364 @ SV85 ) )
        = $true )
      | ( ( ~ ( in @ SV370 @ SV244 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV272 @ SV244 @ SV85 )
           != ( ordered_pair @ SV364 @ SV370 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1989]) ).

thf(2036,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
          | ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1990]) ).

thf(2037,plain,
    ! [SV273: $i,SV365: $i,SV245: $i,SV384: $i,SV85: $i,SV377: $i] :
      ( ( ( ~ ( in @ SV377 @ SV85 )
          | ~ ( in @ SV384 @ SV245 )
          | ( SV365
           != ( ordered_pair @ SV377 @ SV384 ) ) )
        = $true )
      | ( ( in @ SV365 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1992]) ).

thf(2038,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                | ~ ( in @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
          | ( SV366
           != ( ordered_pair @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) ) ) )
        = $false )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1993]) ).

thf(2039,plain,
    ! [SV371: $i,SV86: $i,SV291: $i] :
      ( ( ( in @ ( sK40_C @ SV291 @ SV86 ) @ SV291 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK40_C @ SV291 @ SV86 ) @ SV371 ) @ SV86 )
        = $false )
      | ( ( SV291
          = ( relation_dom @ SV86 ) )
        = $true )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1994]) ).

thf(2040,plain,
    ! [SV292: $i,SV86: $i,SV385: $i,SV372: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV372 @ SV385 ) @ SV86 ) )
        = $true )
      | ( ( in @ SV372 @ SV292 )
        = $true )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1995]) ).

thf(2041,plain,
    ! [SV86: $i,SV292: $i,SV373: $i] :
      ( ( ( in @ SV373 @ SV292 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV373 @ ( sK39_D @ SV373 @ SV292 @ SV86 ) ) @ SV86 )
        = $true )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1996]) ).

thf(2042,plain,
    ! [SV374: $i,SV88: $i,SV293: $i] :
      ( ( ( in @ ( sK37_C @ SV293 @ SV88 ) @ SV293 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV374 @ ( sK37_C @ SV293 @ SV88 ) ) @ SV88 )
        = $false )
      | ( ( SV293
          = ( relation_rng @ SV88 ) )
        = $true )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1997]) ).

thf(2043,plain,
    ! [SV294: $i,SV88: $i,SV375: $i,SV386: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV386 @ SV375 ) @ SV88 ) )
        = $true )
      | ( ( in @ SV375 @ SV294 )
        = $true )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1998]) ).

thf(2044,plain,
    ! [SV88: $i,SV294: $i,SV376: $i] :
      ( ( ( in @ SV376 @ SV294 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK36_D @ SV376 @ SV294 @ SV88 ) @ SV376 ) @ SV88 )
        = $true )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1999]) ).

thf(2045,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 )
          | ~ ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2000]) ).

thf(2046,plain,
    ! [SV330: $i,SV295: $i,SV387: $i] :
      ( ( ( ~ ( in @ SV387 @ SV295 )
          | ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV387 ) )
        = $true )
      | ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2001]) ).

thf(2047,plain,
    ! [SV296: $i,SV331: $i,SV388: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK43_D @ SV388 @ SV331 @ SV296 ) @ SV296 )
              | ~ ~ ( in @ SV388 @ ( sK43_D @ SV388 @ SV331 @ SV296 ) ) )
          | ( in @ SV388 @ SV331 ) )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2002]) ).

thf(2048,plain,
    ! [SV296: $i,SV331: $i,SV389: $i] :
      ( ( ( ~ ( in @ SV389 @ SV331 )
          | ! [SY725: $i] :
              ( ~ ( in @ SY725 @ SV296 )
              | ( in @ SV389 @ SY725 ) ) )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2003]) ).

thf(2049,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
        = $false )
      | ( ( ( ( sK27_D @ SV274 @ SV250 @ SV89 )
           != SV89 ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2004]) ).

thf(2050,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
        = $false )
      | ( ( ( ( sK27_D @ SV274 @ SV250 @ SV89 )
           != SV250 ) )
        = $true )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2005]) ).

thf(2051,plain,
    ! [SV275: $i,SV251: $i,SV89: $i,SV367: $i] :
      ( ( ( SV367 = SV89 )
        = $true )
      | ( ( SV367 = SV251 )
        = $true )
      | ( ( in @ SV367 @ SV275 )
        = $false )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2006]) ).

thf(2052,plain,
    ! [SV251: $i,SV275: $i,SV89: $i,SV390: $i] :
      ( ( ( ( SV390 != SV89 )
          | ( in @ SV390 @ SV275 ) )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2007]) ).

thf(2053,plain,
    ! [SV89: $i,SV275: $i,SV251: $i,SV391: $i] :
      ( ( ( ( SV391 != SV251 )
          | ( in @ SV391 @ SV275 ) )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2008]) ).

thf(2054,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( ! [SY710: $i] :
                  ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SY710 ) @ SV90 )
                  | ~ ( in @ ( ordered_pair @ SY710 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
              | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) ) )
        = $false )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2009]) ).

thf(2055,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
                  | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
              | ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) ) )
        = $false )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2009]) ).

thf(2056,plain,
    ! [SV345: $i,SV195: $i,SV90: $i] :
      ( ( ( ~ ! [SY711: $i,SY712: $i] :
                ( ! [SY584: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY711 @ SY584 ) @ SV90 )
                    | ~ ( in @ ( ordered_pair @ SY584 @ SY712 ) @ SV195 ) )
                | ( in @ ( ordered_pair @ SY711 @ SY712 ) @ SV345 ) )
          | ~ ! [SY714: $i,SY715: $i] :
                ( ~ ( in @ ( ordered_pair @ SY714 @ SY715 ) @ SV345 )
                | ~ ( ~ ( in @ ( ordered_pair @ SY714 @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
                    | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) @ SY715 ) @ SV195 ) ) ) )
        = $false )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2010]) ).

thf(2057,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 ) )
        = $true )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2011]) ).

thf(2058,plain,
    ! [SV91: $i,SV304: $i,SV392: $i] :
      ( ( ( ! [SY726: $i] :
              ( ~ ( in @ ( ordered_pair @ SV392 @ SY726 ) @ SV304 )
              | ( in @ ( ordered_pair @ SY726 @ SV392 ) @ SV91 ) ) )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2013]) ).

thf(2059,plain,
    ! [SV304: $i,SV91: $i,SV393: $i] :
      ( ( ( ! [SY727: $i] :
              ( ~ ( in @ ( ordered_pair @ SY727 @ SV393 ) @ SV91 )
              | ( in @ ( ordered_pair @ SV393 @ SY727 ) @ SV304 ) ) )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2014]) ).

thf(2060,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV79 )
        = $false )
      | ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2015]) ).

thf(2061,plain,
    ! [SV79: $i,SV223: $i,SV265: $i] :
      ( ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV223 )
        = $false )
      | ( ( in @ ( sK26_D @ SV265 @ SV223 @ SV79 ) @ SV265 )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV79 @ SV223 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2016]) ).

thf(2062,plain,
    ! [SV224: $i,SV266: $i,SV79: $i,SV378: $i] :
      ( ( ( ~ ( in @ SV378 @ SV79 ) )
        = $true )
      | ( ( in @ SV378 @ SV266 )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2018]) ).

thf(2063,plain,
    ! [SV79: $i,SV266: $i,SV224: $i,SV379: $i] :
      ( ( ( ~ ( in @ SV379 @ SV224 ) )
        = $true )
      | ( ( in @ SV379 @ SV266 )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2019]) ).

thf(2064,plain,
    ! [SV228: $i,SV80: $i,SV268: $i,SV380: $i] :
      ( ( ( ~ ( in @ SV380 @ SV268 ) )
        = $true )
      | ( ( in @ SV380 @ SV80 )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2022]) ).

thf(2065,plain,
    ! [SV80: $i,SV228: $i,SV268: $i,SV381: $i] :
      ( ( ( ~ ( in @ SV381 @ SV268 ) )
        = $true )
      | ( ( ~ ( in @ SV381 @ SV228 ) )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2023]) ).

thf(2066,plain,
    ! [SV270: $i,SV81: $i,SV234: $i,SV361: $i] :
      ( ( ( in @ SV361 @ SV234 )
        = $false )
      | ( ( in @ SV361 @ SV81 )
        = $false )
      | ( ( in @ SV361 @ SV270 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2025]) ).

thf(2067,plain,
    ! [SV234: $i,SV81: $i,SV270: $i,SV382: $i] :
      ( ( ( ~ ( in @ SV382 @ SV270 ) )
        = $true )
      | ( ( in @ SV382 @ SV81 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2026]) ).

thf(2068,plain,
    ! [SV81: $i,SV234: $i,SV270: $i,SV383: $i] :
      ( ( ( ~ ( in @ SV383 @ SV270 ) )
        = $true )
      | ( ( in @ SV383 @ SV234 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2027]) ).

thf(2069,plain,
    ! [SV82: $i,SV349: $i,SV362: $i] :
      ( ( ( subset @ SV362 @ SV349 )
        = $false )
      | ( ( in @ SV349 @ ( sK32_B @ SV82 ) )
        = $false )
      | ( ( in @ SV362 @ ( sK32_B @ SV82 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2028]) ).

thf(2070,plain,
    ! [SV241: $i,SV354: $i,SV183: $i,SV368: $i] :
      ( ( ( in @ SV368 @ SV183 )
        = $false )
      | ( ( in @ SV354 @ SV368 )
        = $false )
      | ( ( in @ SV354 @ SV241 )
        = $true )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2030]) ).

thf(2071,plain,
    ! [SV183: $i,SV241: $i,SV355: $i] :
      ( ( ( in @ SV355 @ ( sK16_D @ SV355 @ SV241 @ SV183 ) )
        = $true )
      | ( ( in @ SV355 @ SV241 )
        = $false )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2031]) ).

thf(2072,plain,
    ! [SV183: $i,SV241: $i,SV355: $i] :
      ( ( ( in @ ( sK16_D @ SV355 @ SV241 @ SV183 ) @ SV183 )
        = $true )
      | ( ( in @ SV355 @ SV241 )
        = $false )
      | ( ( SV241
          = ( union @ SV183 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2032]) ).

thf(2073,plain,
    ! [SV369: $i,SV84: $i,SV321: $i] :
      ( ( ( in @ SV321 @ ( sK2_B @ SV84 ) )
        = $false )
      | ( ( in @ SV369 @ ( sK3_SY300 @ SV321 @ SV84 ) )
        = $true )
      | ( ( subset @ SV369 @ SV321 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2033]) ).

thf(2074,plain,
    ! [SV84: $i,SV356: $i,SV363: $i] :
      ( ( ( subset @ SV363 @ SV356 )
        = $false )
      | ( ( in @ SV356 @ ( sK2_B @ SV84 ) )
        = $false )
      | ( ( in @ SV363 @ ( sK2_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2034]) ).

thf(2075,plain,
    ! [SV272: $i,SV244: $i,SV370: $i,SV85: $i,SV364: $i] :
      ( ( ( in @ SV364 @ SV85 )
        = $false )
      | ( ( ~ ( in @ SV370 @ SV244 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV272 @ SV244 @ SV85 )
           != ( ordered_pair @ SV364 @ SV370 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2035]) ).

thf(2076,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2036]) ).

thf(2077,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2036]) ).

thf(2078,plain,
    ! [SV273: $i,SV365: $i,SV245: $i,SV384: $i,SV85: $i,SV377: $i] :
      ( ( ( ~ ( in @ SV377 @ SV85 )
          | ~ ( in @ SV384 @ SV245 ) )
        = $true )
      | ( ( ( SV365
           != ( ordered_pair @ SV377 @ SV384 ) ) )
        = $true )
      | ( ( in @ SV365 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2037]) ).

thf(2079,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV85 )
                | ~ ( in @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV245 ) ) )
        = $false )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2038]) ).

thf(2080,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( ( SV366
           != ( ordered_pair @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) ) ) )
        = $false )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2038]) ).

thf(2081,plain,
    ! [SV292: $i,SV86: $i,SV385: $i,SV372: $i] :
      ( ( ( in @ ( ordered_pair @ SV372 @ SV385 ) @ SV86 )
        = $false )
      | ( ( in @ SV372 @ SV292 )
        = $true )
      | ( ( SV292
          = ( relation_dom @ SV86 ) )
        = $false )
      | ( ( relation @ SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2040]) ).

thf(2082,plain,
    ! [SV294: $i,SV88: $i,SV375: $i,SV386: $i] :
      ( ( ( in @ ( ordered_pair @ SV386 @ SV375 ) @ SV88 )
        = $false )
      | ( ( in @ SV375 @ SV294 )
        = $true )
      | ( ( SV294
          = ( relation_rng @ SV88 ) )
        = $false )
      | ( ( relation @ SV88 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2043]) ).

thf(2083,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 ) )
        = $false )
      | ( ( ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2045]) ).

thf(2084,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2045]) ).

thf(2085,plain,
    ! [SV330: $i,SV295: $i,SV387: $i] :
      ( ( ( ~ ( in @ SV387 @ SV295 ) )
        = $true )
      | ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV387 )
        = $true )
      | ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2046]) ).

thf(2086,plain,
    ! [SV296: $i,SV331: $i,SV388: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK43_D @ SV388 @ SV331 @ SV296 ) @ SV296 )
              | ~ ~ ( in @ SV388 @ ( sK43_D @ SV388 @ SV331 @ SV296 ) ) ) )
        = $true )
      | ( ( in @ SV388 @ SV331 )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2047]) ).

thf(2087,plain,
    ! [SV296: $i,SV331: $i,SV389: $i] :
      ( ( ( ~ ( in @ SV389 @ SV331 ) )
        = $true )
      | ( ( ! [SY725: $i] :
              ( ~ ( in @ SY725 @ SV296 )
              | ( in @ SV389 @ SY725 ) ) )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2048]) ).

thf(2088,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ( sK27_D @ SV274 @ SV250 @ SV89 )
          = SV89 )
        = $false )
      | ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
        = $false )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2049]) ).

thf(2089,plain,
    ! [SV89: $i,SV250: $i,SV274: $i] :
      ( ( ( ( sK27_D @ SV274 @ SV250 @ SV89 )
          = SV250 )
        = $false )
      | ( ( in @ ( sK27_D @ SV274 @ SV250 @ SV89 ) @ SV274 )
        = $false )
      | ( ( SV274
          = ( unordered_pair @ SV89 @ SV250 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2050]) ).

thf(2090,plain,
    ! [SV251: $i,SV275: $i,SV89: $i,SV390: $i] :
      ( ( ( ( SV390 != SV89 ) )
        = $true )
      | ( ( in @ SV390 @ SV275 )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2052]) ).

thf(2091,plain,
    ! [SV89: $i,SV275: $i,SV251: $i,SV391: $i] :
      ( ( ( ( SV391 != SV251 ) )
        = $true )
      | ( ( in @ SV391 @ SV275 )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2053]) ).

thf(2092,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ! [SY710: $i] :
              ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SY710 ) @ SV90 )
              | ~ ( in @ ( ordered_pair @ SY710 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
          | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2054]) ).

thf(2093,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
              | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
          | ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2055]) ).

thf(2094,plain,
    ! [SV345: $i,SV195: $i,SV90: $i] :
      ( ( ( ~ ! [SY711: $i,SY712: $i] :
                ( ! [SY584: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY711 @ SY584 ) @ SV90 )
                    | ~ ( in @ ( ordered_pair @ SY584 @ SY712 ) @ SV195 ) )
                | ( in @ ( ordered_pair @ SY711 @ SY712 ) @ SV345 ) ) )
        = $false )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2056]) ).

thf(2095,plain,
    ! [SV90: $i,SV195: $i,SV345: $i] :
      ( ( ( ~ ! [SY714: $i,SY715: $i] :
                ( ~ ( in @ ( ordered_pair @ SY714 @ SY715 ) @ SV345 )
                | ~ ( ~ ( in @ ( ordered_pair @ SY714 @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
                    | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) @ SY715 ) @ SV195 ) ) ) )
        = $false )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2056]) ).

thf(2096,plain,
    ! [SV91: $i,SV303: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK14_SY310 @ SV303 @ SV91 ) @ ( sK13_C @ SV303 @ SV91 ) ) @ SV91 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK13_C @ SV303 @ SV91 ) @ ( sK14_SY310 @ SV303 @ SV91 ) ) @ SV303 )
        = $false )
      | ( ( SV303
          = ( relation_inverse @ SV91 ) )
        = $true )
      | ( ( relation @ SV303 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2057]) ).

thf(2097,plain,
    ! [SV91: $i,SV304: $i,SV394: $i,SV392: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV392 @ SV394 ) @ SV304 )
          | ( in @ ( ordered_pair @ SV394 @ SV392 ) @ SV91 ) )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2058]) ).

thf(2098,plain,
    ! [SV304: $i,SV91: $i,SV393: $i,SV395: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV395 @ SV393 ) @ SV91 )
          | ( in @ ( ordered_pair @ SV393 @ SV395 ) @ SV304 ) )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2059]) ).

thf(2099,plain,
    ! [SV224: $i,SV266: $i,SV79: $i,SV378: $i] :
      ( ( ( in @ SV378 @ SV79 )
        = $false )
      | ( ( in @ SV378 @ SV266 )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2062]) ).

thf(2100,plain,
    ! [SV79: $i,SV266: $i,SV224: $i,SV379: $i] :
      ( ( ( in @ SV379 @ SV224 )
        = $false )
      | ( ( in @ SV379 @ SV266 )
        = $true )
      | ( ( SV266
          = ( set_union2 @ SV79 @ SV224 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2063]) ).

thf(2101,plain,
    ! [SV228: $i,SV80: $i,SV268: $i,SV380: $i] :
      ( ( ( in @ SV380 @ SV268 )
        = $false )
      | ( ( in @ SV380 @ SV80 )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2064]) ).

thf(2102,plain,
    ! [SV80: $i,SV228: $i,SV268: $i,SV381: $i] :
      ( ( ( in @ SV381 @ SV268 )
        = $false )
      | ( ( ~ ( in @ SV381 @ SV228 ) )
        = $true )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2065]) ).

thf(2103,plain,
    ! [SV234: $i,SV81: $i,SV270: $i,SV382: $i] :
      ( ( ( in @ SV382 @ SV270 )
        = $false )
      | ( ( in @ SV382 @ SV81 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2067]) ).

thf(2104,plain,
    ! [SV81: $i,SV234: $i,SV270: $i,SV383: $i] :
      ( ( ( in @ SV383 @ SV270 )
        = $false )
      | ( ( in @ SV383 @ SV234 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV81 @ SV234 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2068]) ).

thf(2105,plain,
    ! [SV272: $i,SV85: $i,SV364: $i,SV244: $i,SV370: $i] :
      ( ( ( in @ SV370 @ SV244 )
        = $false )
      | ( ( in @ SV364 @ SV85 )
        = $false )
      | ( ( ( ( sK23_D @ SV272 @ SV244 @ SV85 )
           != ( ordered_pair @ SV364 @ SV370 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2075]) ).

thf(2106,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( in @ ( sK24_SY316 @ SV272 @ SV244 @ SV85 ) @ SV85 )
        = $true )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2076]) ).

thf(2107,plain,
    ! [SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( in @ ( sK25_SY318 @ SV272 @ SV244 @ SV85 ) @ SV244 )
        = $true )
      | ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2077]) ).

thf(2108,plain,
    ! [SV273: $i,SV365: $i,SV245: $i,SV384: $i,SV85: $i,SV377: $i] :
      ( ( ( ~ ( in @ SV377 @ SV85 ) )
        = $true )
      | ( ( ~ ( in @ SV384 @ SV245 ) )
        = $true )
      | ( ( ( SV365
           != ( ordered_pair @ SV377 @ SV384 ) ) )
        = $true )
      | ( ( in @ SV365 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2078]) ).

thf(2109,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV85 )
              | ~ ( in @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV245 ) ) )
        = $true )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2079]) ).

thf(2110,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( SV366
          = ( ordered_pair @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) ) )
        = $true )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2080]) ).

thf(2111,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 )
        = $true )
      | ( ( ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2083]) ).

thf(2112,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2084]) ).

thf(2113,plain,
    ! [SV330: $i,SV295: $i,SV387: $i] :
      ( ( ( in @ SV387 @ SV295 )
        = $false )
      | ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV387 )
        = $true )
      | ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2085]) ).

thf(2114,plain,
    ! [SV296: $i,SV331: $i,SV388: $i] :
      ( ( ( ~ ( in @ ( sK43_D @ SV388 @ SV331 @ SV296 ) @ SV296 )
          | ~ ~ ( in @ SV388 @ ( sK43_D @ SV388 @ SV331 @ SV296 ) ) )
        = $false )
      | ( ( in @ SV388 @ SV331 )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2086]) ).

thf(2115,plain,
    ! [SV296: $i,SV331: $i,SV389: $i] :
      ( ( ( in @ SV389 @ SV331 )
        = $false )
      | ( ( ! [SY725: $i] :
              ( ~ ( in @ SY725 @ SV296 )
              | ( in @ SV389 @ SY725 ) ) )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2087]) ).

thf(2116,plain,
    ! [SV251: $i,SV275: $i,SV89: $i,SV390: $i] :
      ( ( ( SV390 = SV89 )
        = $false )
      | ( ( in @ SV390 @ SV275 )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2090]) ).

thf(2117,plain,
    ! [SV89: $i,SV275: $i,SV251: $i,SV391: $i] :
      ( ( ( SV391 = SV251 )
        = $false )
      | ( ( in @ SV391 @ SV275 )
        = $true )
      | ( ( SV275
          = ( unordered_pair @ SV89 @ SV251 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2091]) ).

thf(2118,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ! [SY710: $i] :
              ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SY710 ) @ SV90 )
              | ~ ( in @ ( ordered_pair @ SY710 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2092]) ).

thf(2119,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
              | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2093]) ).

thf(2120,plain,
    ! [SV345: $i,SV195: $i,SV90: $i] :
      ( ( ( ! [SY711: $i,SY712: $i] :
              ( ! [SY584: $i] :
                  ( ~ ( in @ ( ordered_pair @ SY711 @ SY584 ) @ SV90 )
                  | ~ ( in @ ( ordered_pair @ SY584 @ SY712 ) @ SV195 ) )
              | ( in @ ( ordered_pair @ SY711 @ SY712 ) @ SV345 ) ) )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2094]) ).

thf(2121,plain,
    ! [SV90: $i,SV195: $i,SV345: $i] :
      ( ( ( ! [SY714: $i,SY715: $i] :
              ( ~ ( in @ ( ordered_pair @ SY714 @ SY715 ) @ SV345 )
              | ~ ( ~ ( in @ ( ordered_pair @ SY714 @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY715 @ SY714 @ SV345 @ SV195 @ SV90 ) @ SY715 ) @ SV195 ) ) ) )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2095]) ).

thf(2122,plain,
    ! [SV91: $i,SV304: $i,SV394: $i,SV392: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV392 @ SV394 ) @ SV304 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV394 @ SV392 ) @ SV91 )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2097]) ).

thf(2123,plain,
    ! [SV304: $i,SV91: $i,SV393: $i,SV395: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV395 @ SV393 ) @ SV91 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV393 @ SV395 ) @ SV304 )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2098]) ).

thf(2124,plain,
    ! [SV80: $i,SV268: $i,SV228: $i,SV381: $i] :
      ( ( ( in @ SV381 @ SV228 )
        = $false )
      | ( ( in @ SV381 @ SV268 )
        = $false )
      | ( ( SV268
          = ( set_difference @ SV80 @ SV228 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2102]) ).

thf(2125,plain,
    ! [SV370: $i,SV364: $i,SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( ( sK23_D @ SV272 @ SV244 @ SV85 )
          = ( ordered_pair @ SV364 @ SV370 ) )
        = $false )
      | ( ( in @ SV364 @ SV85 )
        = $false )
      | ( ( in @ SV370 @ SV244 )
        = $false )
      | ( ( ~ ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2105]) ).

thf(2126,plain,
    ! [SV273: $i,SV365: $i,SV245: $i,SV384: $i,SV85: $i,SV377: $i] :
      ( ( ( in @ SV377 @ SV85 )
        = $false )
      | ( ( ~ ( in @ SV384 @ SV245 ) )
        = $true )
      | ( ( ( SV365
           != ( ordered_pair @ SV377 @ SV384 ) ) )
        = $true )
      | ( ( in @ SV365 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2108]) ).

thf(2127,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( ~ ( in @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV85 )
          | ~ ( in @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
        = $false )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2109]) ).

thf(2128,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 )
        = $false )
      | ( ( in @ ( sK45_SY327 @ SV330 @ SV295 ) @ SV295 )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2111]) ).

thf(2129,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) )
        = $false )
      | ( ( ~ ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 ) )
        = $true )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2112]) ).

thf(2130,plain,
    ! [SV296: $i,SV331: $i,SV388: $i] :
      ( ( ( ~ ( in @ ( sK43_D @ SV388 @ SV331 @ SV296 ) @ SV296 ) )
        = $false )
      | ( ( in @ SV388 @ SV331 )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2114]) ).

thf(2131,plain,
    ! [SV296: $i,SV331: $i,SV388: $i] :
      ( ( ( ~ ~ ( in @ SV388 @ ( sK43_D @ SV388 @ SV331 @ SV296 ) ) )
        = $false )
      | ( ( in @ SV388 @ SV331 )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2114]) ).

thf(2132,plain,
    ! [SV331: $i,SV389: $i,SV296: $i,SV396: $i] :
      ( ( ( ~ ( in @ SV396 @ SV296 )
          | ( in @ SV389 @ SV396 ) )
        = $true )
      | ( ( in @ SV389 @ SV331 )
        = $false )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2115]) ).

thf(2133,plain,
    ! [SV397: $i,SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SV397 ) @ SV90 )
          | ~ ( in @ ( ordered_pair @ SV397 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2118]) ).

thf(2134,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
          | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2119]) ).

thf(2135,plain,
    ! [SV345: $i,SV195: $i,SV90: $i,SV398: $i] :
      ( ( ( ! [SY728: $i] :
              ( ! [SY729: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV398 @ SY729 ) @ SV90 )
                  | ~ ( in @ ( ordered_pair @ SY729 @ SY728 ) @ SV195 ) )
              | ( in @ ( ordered_pair @ SV398 @ SY728 ) @ SV345 ) ) )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2120]) ).

thf(2136,plain,
    ! [SV90: $i,SV195: $i,SV345: $i,SV399: $i] :
      ( ( ( ! [SY730: $i] :
              ( ~ ( in @ ( ordered_pair @ SV399 @ SY730 ) @ SV345 )
              | ~ ( ~ ( in @ ( ordered_pair @ SV399 @ ( sK9_F @ SY730 @ SV399 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY730 @ SV399 @ SV345 @ SV195 @ SV90 ) @ SY730 ) @ SV195 ) ) ) )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2121]) ).

thf(2137,plain,
    ! [SV91: $i,SV304: $i,SV394: $i,SV392: $i] :
      ( ( ( in @ ( ordered_pair @ SV392 @ SV394 ) @ SV304 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV394 @ SV392 ) @ SV91 )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2122]) ).

thf(2138,plain,
    ! [SV304: $i,SV91: $i,SV393: $i,SV395: $i] :
      ( ( ( in @ ( ordered_pair @ SV395 @ SV393 ) @ SV91 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV393 @ SV395 ) @ SV304 )
        = $true )
      | ( ( SV304
          = ( relation_inverse @ SV91 ) )
        = $false )
      | ( ( relation @ SV304 )
        = $false )
      | ( ( relation @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2123]) ).

thf(2139,plain,
    ! [SV364: $i,SV370: $i,SV85: $i,SV244: $i,SV272: $i] :
      ( ( ( in @ ( sK23_D @ SV272 @ SV244 @ SV85 ) @ SV272 )
        = $false )
      | ( ( in @ SV370 @ SV244 )
        = $false )
      | ( ( in @ SV364 @ SV85 )
        = $false )
      | ( ( ( sK23_D @ SV272 @ SV244 @ SV85 )
          = ( ordered_pair @ SV364 @ SV370 ) )
        = $false )
      | ( ( SV272
          = ( cartesian_product2 @ SV85 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2125]) ).

thf(2140,plain,
    ! [SV273: $i,SV365: $i,SV85: $i,SV377: $i,SV245: $i,SV384: $i] :
      ( ( ( in @ SV384 @ SV245 )
        = $false )
      | ( ( in @ SV377 @ SV85 )
        = $false )
      | ( ( ( SV365
           != ( ordered_pair @ SV377 @ SV384 ) ) )
        = $true )
      | ( ( in @ SV365 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2126]) ).

thf(2141,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( ~ ( in @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV85 ) )
        = $false )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2127]) ).

thf(2142,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( ~ ( in @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV245 ) )
        = $false )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2127]) ).

thf(2143,plain,
    ! [SV295: $i,SV330: $i] :
      ( ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ SV330 )
        = $false )
      | ( ( in @ ( sK44_C @ SV330 @ SV295 ) @ ( sK45_SY327 @ SV330 @ SV295 ) )
        = $false )
      | ( ( SV330
          = ( set_meet @ SV295 ) )
        = $true )
      | ( ( SV295 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2129]) ).

thf(2144,plain,
    ! [SV296: $i,SV331: $i,SV388: $i] :
      ( ( ( in @ ( sK43_D @ SV388 @ SV331 @ SV296 ) @ SV296 )
        = $true )
      | ( ( in @ SV388 @ SV331 )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2130]) ).

thf(2145,plain,
    ! [SV296: $i,SV331: $i,SV388: $i] :
      ( ( ( ~ ( in @ SV388 @ ( sK43_D @ SV388 @ SV331 @ SV296 ) ) )
        = $true )
      | ( ( in @ SV388 @ SV331 )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2131]) ).

thf(2146,plain,
    ! [SV331: $i,SV389: $i,SV296: $i,SV396: $i] :
      ( ( ( ~ ( in @ SV396 @ SV296 ) )
        = $true )
      | ( ( in @ SV389 @ SV396 )
        = $true )
      | ( ( in @ SV389 @ SV331 )
        = $false )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2132]) ).

thf(2147,plain,
    ! [SV397: $i,SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SV397 ) @ SV90 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV397 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2133]) ).

thf(2148,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2134]) ).

thf(2149,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2134]) ).

thf(2150,plain,
    ! [SV345: $i,SV195: $i,SV400: $i,SV90: $i,SV398: $i] :
      ( ( ( ! [SY731: $i] :
              ( ~ ( in @ ( ordered_pair @ SV398 @ SY731 ) @ SV90 )
              | ~ ( in @ ( ordered_pair @ SY731 @ SV400 ) @ SV195 ) )
          | ( in @ ( ordered_pair @ SV398 @ SV400 ) @ SV345 ) )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2135]) ).

thf(2151,plain,
    ! [SV90: $i,SV195: $i,SV345: $i,SV401: $i,SV399: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV399 @ SV401 ) @ SV345 )
          | ~ ( ~ ( in @ ( ordered_pair @ SV399 @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) @ SV401 ) @ SV195 ) ) )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2136]) ).

thf(2152,plain,
    ! [SV273: $i,SV245: $i,SV85: $i,SV384: $i,SV377: $i,SV365: $i] :
      ( ( ( SV365
          = ( ordered_pair @ SV377 @ SV384 ) )
        = $false )
      | ( ( in @ SV377 @ SV85 )
        = $false )
      | ( ( in @ SV384 @ SV245 )
        = $false )
      | ( ( in @ SV365 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2140]) ).

thf(2153,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( in @ ( sK21_E @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV85 )
        = $true )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2141]) ).

thf(2154,plain,
    ! [SV85: $i,SV245: $i,SV273: $i,SV366: $i] :
      ( ( ( in @ ( sK22_SY313 @ SV366 @ SV273 @ SV245 @ SV85 ) @ SV245 )
        = $true )
      | ( ( in @ SV366 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV85 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2142]) ).

thf(2155,plain,
    ! [SV296: $i,SV331: $i,SV388: $i] :
      ( ( ( in @ SV388 @ ( sK43_D @ SV388 @ SV331 @ SV296 ) )
        = $false )
      | ( ( in @ SV388 @ SV331 )
        = $true )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2145]) ).

thf(2156,plain,
    ! [SV331: $i,SV389: $i,SV296: $i,SV396: $i] :
      ( ( ( in @ SV396 @ SV296 )
        = $false )
      | ( ( in @ SV389 @ SV396 )
        = $true )
      | ( ( in @ SV389 @ SV331 )
        = $false )
      | ( ( SV331
          = ( set_meet @ SV296 ) )
        = $false )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2146]) ).

thf(2157,plain,
    ! [SV397: $i,SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SV397 ) @ SV90 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV397 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2147]) ).

thf(2158,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) ) @ SV90 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2148]) ).

thf(2159,plain,
    ! [SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK12_SY309 @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2149]) ).

thf(2160,plain,
    ! [SV345: $i,SV195: $i,SV400: $i,SV90: $i,SV398: $i] :
      ( ( ( ! [SY731: $i] :
              ( ~ ( in @ ( ordered_pair @ SV398 @ SY731 ) @ SV90 )
              | ~ ( in @ ( ordered_pair @ SY731 @ SV400 ) @ SV195 ) ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV398 @ SV400 ) @ SV345 )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2150]) ).

thf(2161,plain,
    ! [SV90: $i,SV195: $i,SV345: $i,SV401: $i,SV399: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV399 @ SV401 ) @ SV345 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ ( ordered_pair @ SV399 @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) @ SV401 ) @ SV195 ) ) )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2151]) ).

thf(2162,plain,
    ! [SV90: $i,SV195: $i,SV344: $i,SV397: $i] :
      ( ( ( in @ ( ordered_pair @ SV397 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SV397 ) @ SV90 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 ) )
        = $true )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2157]) ).

thf(2163,plain,
    ! [SV345: $i,SV195: $i,SV400: $i,SV90: $i,SV402: $i,SV398: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV398 @ SV402 ) @ SV90 )
          | ~ ( in @ ( ordered_pair @ SV402 @ SV400 ) @ SV195 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV398 @ SV400 ) @ SV345 )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2160]) ).

thf(2164,plain,
    ! [SV90: $i,SV195: $i,SV345: $i,SV401: $i,SV399: $i] :
      ( ( ( in @ ( ordered_pair @ SV399 @ SV401 ) @ SV345 )
        = $false )
      | ( ( ~ ( ~ ( in @ ( ordered_pair @ SV399 @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) @ SV401 ) @ SV195 ) ) )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2161]) ).

thf(2165,plain,
    ! [SV397: $i,SV90: $i,SV195: $i,SV344: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV344 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV344 @ SV195 @ SV90 ) @ SV397 ) @ SV90 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV397 @ ( sK11_SY305 @ SV344 @ SV195 @ SV90 ) ) @ SV195 )
        = $false )
      | ( ( SV344
          = ( relation_composition @ SV90 @ SV195 ) )
        = $true )
      | ( ( relation @ SV344 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2162]) ).

thf(2166,plain,
    ! [SV345: $i,SV195: $i,SV400: $i,SV90: $i,SV402: $i,SV398: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV398 @ SV402 ) @ SV90 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV402 @ SV400 ) @ SV195 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV398 @ SV400 ) @ SV345 )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2163]) ).

thf(2167,plain,
    ! [SV90: $i,SV195: $i,SV345: $i,SV401: $i,SV399: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV399 @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
          | ~ ( in @ ( ordered_pair @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) @ SV401 ) @ SV195 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV399 @ SV401 ) @ SV345 )
        = $false )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2164]) ).

thf(2168,plain,
    ! [SV345: $i,SV195: $i,SV400: $i,SV90: $i,SV402: $i,SV398: $i] :
      ( ( ( in @ ( ordered_pair @ SV398 @ SV402 ) @ SV90 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV402 @ SV400 ) @ SV195 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV398 @ SV400 ) @ SV345 )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2166]) ).

thf(2169,plain,
    ! [SV90: $i,SV195: $i,SV345: $i,SV401: $i,SV399: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV399 @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) ) @ SV90 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV399 @ SV401 ) @ SV345 )
        = $false )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2167]) ).

thf(2170,plain,
    ! [SV90: $i,SV195: $i,SV345: $i,SV399: $i,SV401: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) @ SV401 ) @ SV195 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV399 @ SV401 ) @ SV345 )
        = $false )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2167]) ).

thf(2171,plain,
    ! [SV345: $i,SV90: $i,SV398: $i,SV195: $i,SV400: $i,SV402: $i] :
      ( ( ( in @ ( ordered_pair @ SV402 @ SV400 ) @ SV195 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV398 @ SV402 ) @ SV90 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV398 @ SV400 ) @ SV345 )
        = $true )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2168]) ).

thf(2172,plain,
    ! [SV90: $i,SV195: $i,SV345: $i,SV401: $i,SV399: $i] :
      ( ( ( in @ ( ordered_pair @ SV399 @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) ) @ SV90 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV399 @ SV401 ) @ SV345 )
        = $false )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2169]) ).

thf(2173,plain,
    ! [SV90: $i,SV195: $i,SV345: $i,SV399: $i,SV401: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK9_F @ SV401 @ SV399 @ SV345 @ SV195 @ SV90 ) @ SV401 ) @ SV195 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV399 @ SV401 ) @ SV345 )
        = $false )
      | ( ( SV345
          = ( relation_composition @ SV90 @ SV195 ) )
        = $false )
      | ( ( relation @ SV345 )
        = $false )
      | ( ( relation @ SV195 )
        = $false )
      | ( ( relation @ SV90 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2170]) ).

thf(2174,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[422,2173,2172,2171,2165,2159,2158,2156,2155,2154,2153,2152,2144,2143,2139,2138,2137,2128,2124,2117,2116,2113,2110,2107,2106,2104,2103,2101,2100,2099,2096,2089,2088,2082,2081,2074,2073,2072,2071,2070,2069,2066,2061,2060,2051,2044,2042,2041,2039,2029,2024,2021,2020,2017,2012,1991,1979,1978,1972,1971,1961,1960,1936,1932,1931,1929,1928,1904,1901,1900,1897,1894,1893,1887,1883,1867,1866,1865,1851,1848,1847,1846,1845,1844,1843,1842,1832,1831,1798,1788,1781,1780,1776,1775,1772,1771,1770,1765,1739,1736,1735,1728,1723,1721,1716,1715,1705,1704,1700,1698,1697,1696,1692,1691,1633,1628,1627,1623,1617,1612,1610,1604,1596,1584,1569,1566,1565,1564,1552,1536,1535,1528,1524,1523,1522,1521,1507,1506,1484,1483,1482,1481,1458,1457,1452,1451,1444,1440,1439,1433,1425,1424,1422,1421,1420,1419,1418,1416,1401,1391,1390,1384,1366,1365,1331,1330,1320,1318,1309,1301,1299,1298,1295,1294,1286,1280,1189,1186,1185,1184,1183,1182,1179,1178,1177,1171,1170,1169,1157,1125,1124,1098,1064,1063,1061,1060,1057,1054,1051,1050,1048,1044,1042,1038,1033,1023,997,996,964,947,946,945,944,922,920,899,896,895,890,889,888,882,881,784,782,781,780,779,773,769,766,765,764,758,733,671,670,669,668,655,649,625,624,623,622,607,549,535,448]) ).

thf(2175,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[418]) ).

thf(2176,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[417]) ).

thf(2177,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[416]) ).

thf(2178,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[300]) ).

thf(2179,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ A @ ( relation_dom @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ B @ ( relation_rng @ C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[415]) ).

thf(2180,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[414]) ).

thf(2181,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) ) )
            & ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[413]) ).

thf(2182,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[296]) ).

thf(2183,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_rng @ A )
            = ( relation_dom @ ( relation_inverse @ A ) ) ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_dom @ A )
            = ( relation_rng @ ( relation_inverse @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[412]) ).

thf(2184,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[411]) ).

thf(2185,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[410]) ).

thf(2186,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[409]) ).

thf(2187,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[408]) ).

thf(2188,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[407]) ).

thf(2189,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ~ ( subset @ ( relation_rng @ A ) @ ( relation_dom @ B ) )
              | ( ( relation_dom @ ( relation_composition @ A @ B ) )
                = ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[406]) ).

thf(2190,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ~ ( subset @ ( relation_dom @ A ) @ ( relation_rng @ B ) )
              | ( ( relation_rng @ ( relation_composition @ B @ A ) )
                = ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[405]) ).

thf(2191,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( in @ ( ordered_pair @ ( sK49_B @ A ) @ ( sK50_SY332 @ A ) ) @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[404]) ).

thf(2192,plain,
    ( ( ( ( relation_dom @ empty_set )
        = empty_set )
      & ( ( relation_rng @ empty_set )
        = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[286]) ).

thf(2193,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_dom @ A )
           != empty_set )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_rng @ A )
           != empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[403]) ).

thf(2194,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[402]) ).

thf(2195,plain,
    ( ( ! [A: $i] :
          ( ( ! [SY330: $i,SY331: $i] :
                ( ( sK48_B @ A )
               != ( ordered_pair @ SY330 @ SY331 ) )
            & ( in @ ( sK48_B @ A ) @ A ) )
          | ( relation @ A ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ( B
                = ( ordered_pair @ ( sK46_C @ B @ A ) @ ( sK47_SY329 @ B @ A ) ) )
              | ~ ( in @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[401]) ).

thf(2196,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK45_SY327 @ B @ A ) @ A )
                    & ~ ( in @ ( sK44_C @ B @ A ) @ ( sK45_SY327 @ B @ A ) ) )
                  | ~ ( in @ ( sK44_C @ B @ A ) @ B ) )
                & ( ! [SY328: $i] :
                      ( ~ ( in @ SY328 @ A )
                      | ( in @ ( sK44_C @ B @ A ) @ SY328 ) )
                  | ( in @ ( sK44_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK43_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK43_D @ C @ B @ A ) ) )
                    | ( in @ C @ B ) )
                & ! [C: $i] :
                    ( ~ ( in @ C @ B )
                    | ! [D: $i] :
                        ( ~ ( in @ D @ A )
                        | ( in @ C @ D ) ) ) ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( B = empty_set ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ( ( B != empty_set )
              | ( B
                = ( set_meet @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[400]) ).

thf(2197,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK42_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[399]) ).

thf(2198,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY325: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK40_C @ B @ A ) @ SY325 ) @ A )
                    | ~ ( in @ ( sK40_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK40_C @ B @ A ) @ ( sK41_SY326 @ B @ A ) ) @ A )
                    | ( in @ ( sK40_C @ B @ A ) @ B ) ) )
                | ( B
                  = ( relation_dom @ A ) ) )
            & ! [B: $i] :
                ( ( B
                 != ( relation_dom @ A ) )
                | ( ! [C: $i] :
                      ( ! [D: $i] :
                          ~ ( in @ ( ordered_pair @ C @ D ) @ A )
                      | ( in @ C @ B ) )
                  & ! [C: $i] :
                      ( ~ ( in @ C @ B )
                      | ( in @ ( ordered_pair @ C @ ( sK39_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[398]) ).

thf(2199,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY323: $i] :
                        ~ ( in @ ( ordered_pair @ SY323 @ ( sK37_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK37_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK38_SY324 @ B @ A ) @ ( sK37_C @ B @ A ) ) @ A )
                    | ( in @ ( sK37_C @ B @ A ) @ B ) ) )
                | ( B
                  = ( relation_rng @ A ) ) )
            & ! [B: $i] :
                ( ( B
                 != ( relation_rng @ A ) )
                | ( ! [C: $i] :
                      ( ! [D: $i] :
                          ~ ( in @ ( ordered_pair @ D @ C ) @ A )
                      | ( in @ C @ B ) )
                  & ! [C: $i] :
                      ( ~ ( in @ C @ B )
                      | ( in @ ( ordered_pair @ ( sK36_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[397]) ).

thf(2200,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[396]) ).

thf(2201,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_intersection2 @ A @ B )
           != empty_set )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[395]) ).

thf(2202,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( relation @ ( relation_inverse @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[394]) ).

thf(2203,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( relation_composition @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[393]) ).

thf(2204,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[274]) ).

thf(2205,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[392]) ).

thf(2206,plain,
    ( ( ( empty @ empty_set )
      & ( relation @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[272]) ).

thf(2207,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[391]) ).

thf(2208,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[390]) ).

thf(2209,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( empty @ ( relation_dom @ A ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[389]) ).

thf(2210,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( empty @ ( relation_rng @ A ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[388]) ).

thf(2211,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_inverse @ ( relation_inverse @ A ) )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[387]) ).

thf(2212,plain,
    ( ( ( empty @ sK35_A )
      & ( relation @ sK35_A ) )
    = $true ),
    inference(copy,[status(thm)],[386]) ).

thf(2213,plain,
    ( ( ~ ( empty @ sK34_A )
      & ( relation @ sK34_A ) )
    = $true ),
    inference(copy,[status(thm)],[385]) ).

thf(2214,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[264]) ).

thf(2215,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[263]) ).

thf(2216,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[262]) ).

thf(2217,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[261]) ).

thf(2218,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[384]) ).

thf(2219,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[383]) ).

thf(2220,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[382]) ).

thf(2221,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[381]) ).

thf(2222,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[380]) ).

thf(2223,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[379]) ).

thf(2224,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ( in @ C @ A )
              | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[378]) ).

thf(2225,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[377]) ).

thf(2226,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[376]) ).

thf(2227,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK33_C @ B @ A ) @ A )
            & ~ ( in @ ( sK33_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[375]) ).

thf(2228,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[374]) ).

thf(2229,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i] :
              ( ~ ( subset @ A @ B )
              | ! [C: $i] : ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) ) )
          & ! [B: $i] :
              ( ~ ( subset @ A @ B )
              | ! [C: $i] : ( subset @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[373]) ).

thf(2230,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ D )
          | ( subset @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[372]) ).

thf(2231,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[371]) ).

thf(2232,plain,
    ( ( ! [A: $i] :
          ( ! [SY319: $i] :
              ( ~ ( subset @ SY319 @ ( sK32_B @ A ) )
              | ( are_equipotent @ SY319 @ ( sK32_B @ A ) )
              | ( in @ SY319 @ ( sK32_B @ A ) ) )
          & ! [SY320: $i] :
              ( ~ ( in @ SY320 @ ( sK32_B @ A ) )
              | ( in @ ( powerset @ SY320 ) @ ( sK32_B @ A ) ) )
          & ! [SY321: $i,SY322: $i] :
              ( ~ ( in @ SY321 @ ( sK32_B @ A ) )
              | ~ ( subset @ SY322 @ SY321 )
              | ( in @ SY322 @ ( sK32_B @ A ) ) )
          & ( in @ A @ ( sK32_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[370]) ).

thf(2233,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[245]) ).

thf(2234,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[369]) ).

thf(2235,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[368]) ).

thf(2236,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[367]) ).

thf(2237,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[366]) ).

thf(2238,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ A @ ( relation_field @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ B @ ( relation_field @ C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[365]) ).

thf(2239,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[364]) ).

thf(2240,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ! [D: $i] :
                  ( ( ordered_pair @ A @ B )
                 != ( ordered_pair @ C @ D ) )
              | ( A = C ) )
          & ! [C: $i,D: $i] :
              ( ( ( ordered_pair @ A @ B )
               != ( ordered_pair @ C @ D ) )
              | ( B = D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[363]) ).

thf(2241,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[237]) ).

thf(2242,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[362]) ).

thf(2243,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ C )
              | ( subset @ ( unordered_pair @ A @ B ) @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ A @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[361]) ).

thf(2244,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[234]) ).

thf(2245,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK31_C @ B @ A ) @ A )
            & ( in @ ( sK31_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[360]) ).

thf(2246,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(2247,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[359]) ).

thf(2248,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[358]) ).

thf(2249,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[229]) ).

thf(2250,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK30_C @ B @ A ) @ ( set_intersection2 @ A @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ~ ( in @ C @ ( set_intersection2 @ A @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[357]) ).

thf(2251,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[356]) ).

thf(2252,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[355]) ).

thf(2253,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
           != A )
          | ~ ( in @ B @ A ) )
      & ! [A: $i,B: $i] :
          ( ( in @ B @ A )
          | ( ( set_difference @ A @ ( singleton @ B ) )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[354]) ).

thf(2254,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[224]) ).

thf(2255,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[353]) ).

thf(2256,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[222]) ).

thf(2257,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != A )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[352]) ).

thf(2258,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[351]) ).

thf(2259,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[350]) ).

thf(2260,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[349]) ).

thf(2261,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[217]) ).

thf(2262,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[348]) ).

thf(2263,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[347]) ).

thf(2264,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[214]) ).

thf(2265,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[213]) ).

thf(2266,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ A )
          | ( A = B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[346]) ).

thf(2267,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK29_C @ B @ A )
               != A )
              | ~ ( in @ ( sK29_C @ B @ A ) @ B ) )
            & ( ( ( sK29_C @ B @ A )
                = A )
              | ( in @ ( sK29_C @ B @ A ) @ B ) ) )
          | ( B
            = ( singleton @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( singleton @ A ) )
          | ( ! [C: $i] :
                ( ( C != A )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( C = A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[345]) ).

thf(2268,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK28_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK28_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK28_C @ B @ A ) @ B )
              | ( subset @ ( sK28_C @ B @ A ) @ A ) ) )
          | ( B
            = ( powerset @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( subset @ C @ A ) )
            & ! [C: $i] :
                ( ~ ( subset @ C @ A )
                | ( in @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[344]) ).

thf(2269,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ( ~ ( element @ B @ A )
              | ( in @ B @ A ) ) )
      & ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ( ~ ( in @ B @ A )
              | ( element @ B @ A ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ! [B: $i] :
              ( ~ ( element @ B @ A )
              | ( empty @ B ) ) )
      & ! [A: $i] :
          ( ~ ( empty @ A )
          | ! [B: $i] :
              ( ~ ( empty @ B )
              | ( element @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[343]) ).

thf(2270,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                    = A )
                  | ( ( sK27_D @ C @ B @ A )
                    = B ) ) )
              | ( C
                = ( unordered_pair @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( unordered_pair @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( D = A )
                    | ( D = B ) )
                & ! [D: $i] :
                    ( ( D != A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ( D != B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[342]) ).

thf(2271,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ B ) ) )
              | ( C
                = ( set_union2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_union2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A )
                    | ( in @ D @ B ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[341]) ).

thf(2272,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY314: $i,SY315: $i] :
                      ( ~ ( in @ SY314 @ A )
                      | ~ ( in @ SY315 @ B )
                      | ( ( sK23_D @ C @ B @ A )
                       != ( ordered_pair @ SY314 @ SY315 ) ) )
                  | ~ ( in @ ( sK23_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK24_SY316 @ C @ B @ A ) @ A )
                    & ( in @ ( sK25_SY318 @ C @ B @ A ) @ B )
                    & ( ( sK23_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK24_SY316 @ C @ B @ A ) @ ( sK25_SY318 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK23_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK21_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK22_SY313 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK21_E @ D @ C @ B @ A ) @ ( sK22_SY313 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[340]) ).

thf(2273,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK20_C @ B @ A ) @ A )
            & ~ ( in @ ( sK20_C @ B @ A ) @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[339]) ).

thf(2274,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_intersection2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_intersection2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ~ ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[338]) ).

thf(2275,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY311: $i] :
                  ( ~ ( in @ ( sK17_C @ B @ A ) @ SY311 )
                  | ~ ( in @ SY311 @ A ) )
              | ~ ( in @ ( sK17_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK17_C @ B @ A ) @ ( sK18_SY312 @ B @ A ) )
                & ( in @ ( sK18_SY312 @ B @ A ) @ A ) )
              | ( in @ ( sK17_C @ B @ A ) @ B ) ) )
          | ( B
            = ( union @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( union @ A ) )
          | ( ! [C: $i] :
                ( ! [D: $i] :
                    ( ~ ( in @ C @ D )
                    | ~ ( in @ D @ A ) )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( ( in @ C @ ( sK16_D @ C @ B @ A ) )
                  & ( in @ ( sK16_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[337]) ).

thf(2276,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK15_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK15_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK15_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK15_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK15_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK15_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK15_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_difference @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_difference @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ~ ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[336]) ).

thf(2277,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[201]) ).

thf(2278,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ( ( ~ ( in @ ( ordered_pair @ ( sK13_C @ B @ A ) @ ( sK14_SY310 @ B @ A ) ) @ B )
                    | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ B @ A ) @ ( sK13_C @ B @ A ) ) @ A ) )
                  & ( ( in @ ( ordered_pair @ ( sK13_C @ B @ A ) @ ( sK14_SY310 @ B @ A ) ) @ B )
                    | ( in @ ( ordered_pair @ ( sK14_SY310 @ B @ A ) @ ( sK13_C @ B @ A ) ) @ A ) ) )
                | ( B
                  = ( relation_inverse @ A ) ) )
            & ! [B: $i] :
                ( ~ ( relation @ B )
                | ( B
                 != ( relation_inverse @ A ) )
                | ( ! [C: $i,D: $i] :
                      ( ~ ( in @ ( ordered_pair @ C @ D ) @ B )
                      | ( in @ ( ordered_pair @ D @ C ) @ A ) )
                  & ! [C: $i,D: $i] :
                      ( ~ ( in @ ( ordered_pair @ D @ C ) @ A )
                      | ( in @ ( ordered_pair @ C @ D ) @ B ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[335]) ).

thf(2279,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( ! [C: $i] :
                    ( ~ ( relation @ C )
                    | ( ( ! [SY308: $i] :
                            ( ~ ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ SY308 ) @ A )
                            | ~ ( in @ ( ordered_pair @ SY308 @ ( sK11_SY305 @ C @ B @ A ) ) @ B ) )
                        | ~ ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ ( sK11_SY305 @ C @ B @ A ) ) @ C ) )
                      & ( ( ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ ( sK12_SY309 @ C @ B @ A ) ) @ A )
                          & ( in @ ( ordered_pair @ ( sK12_SY309 @ C @ B @ A ) @ ( sK11_SY305 @ C @ B @ A ) ) @ B ) )
                        | ( in @ ( ordered_pair @ ( sK10_D @ C @ B @ A ) @ ( sK11_SY305 @ C @ B @ A ) ) @ C ) ) )
                    | ( C
                      = ( relation_composition @ A @ B ) ) )
                & ! [C: $i] :
                    ( ~ ( relation @ C )
                    | ( C
                     != ( relation_composition @ A @ B ) )
                    | ( ! [D: $i,E: $i] :
                          ( ! [F: $i] :
                              ( ~ ( in @ ( ordered_pair @ D @ F ) @ A )
                              | ~ ( in @ ( ordered_pair @ F @ E ) @ B ) )
                          | ( in @ ( ordered_pair @ D @ E ) @ C ) )
                      & ! [D: $i,E: $i] :
                          ( ~ ( in @ ( ordered_pair @ D @ E ) @ C )
                          | ( ( in @ ( ordered_pair @ D @ ( sK9_F @ E @ D @ C @ B @ A ) ) @ A )
                            & ( in @ ( ordered_pair @ ( sK9_F @ E @ D @ C @ B @ A ) @ E ) @ B ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[334]) ).

thf(2280,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( subset @ A @ B )
          | ( proper_subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( A != B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[333]) ).

thf(2281,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[197]) ).

thf(2282,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[196]) ).

thf(2283,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[195]) ).

thf(2284,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[332]) ).

thf(2285,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( unordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[193]) ).

thf(2286,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[331]) ).

thf(2287,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( empty @ A )
          | ( empty @ B )
          | ~ ( empty @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[330]) ).

thf(2288,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[329]) ).

thf(2289,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[328]) ).

thf(2290,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ( ( element @ ( sK8_B @ A ) @ ( powerset @ A ) )
            & ~ ( empty @ ( sK8_B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[327]) ).

thf(2291,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(copy,[status(thm)],[326]) ).

thf(2292,plain,
    ( ( ! [A: $i] :
          ( ( element @ ( sK6_B @ A ) @ ( powerset @ A ) )
          & ( empty @ ( sK6_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[325]) ).

thf(2293,plain,
    ( ( ~ ( empty @ sK5_A ) )
    = $true ),
    inference(copy,[status(thm)],[324]) ).

thf(2294,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[323]) ).

thf(2295,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[322]) ).

thf(2296,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[321]) ).

thf(2297,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[320]) ).

thf(2298,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK4_C @ B @ A ) @ A )
              | ~ ( in @ ( sK4_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK4_C @ B @ A ) @ A )
              | ( in @ ( sK4_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[319]) ).

thf(2299,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ ( powerset @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[318]) ).

thf(2300,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[317]) ).

thf(2301,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[316]) ).

thf(2302,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[315]) ).

thf(2303,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[314]) ).

thf(2304,plain,
    ( ( ! [A: $i] :
          ( ! [SY298: $i] :
              ( ~ ( subset @ SY298 @ ( sK2_B @ A ) )
              | ( are_equipotent @ SY298 @ ( sK2_B @ A ) )
              | ( in @ SY298 @ ( sK2_B @ A ) ) )
          & ! [SY299: $i] :
              ( ( ! [SY304: $i] :
                    ( ~ ( subset @ SY304 @ SY299 )
                    | ( in @ SY304 @ ( sK3_SY300 @ SY299 @ A ) ) )
                & ( in @ ( sK3_SY300 @ SY299 @ A ) @ ( sK2_B @ A ) ) )
              | ~ ( in @ SY299 @ ( sK2_B @ A ) ) )
          & ! [SY302: $i,SY303: $i] :
              ( ~ ( in @ SY302 @ ( sK2_B @ A ) )
              | ~ ( subset @ SY303 @ SY302 )
              | ( in @ SY303 @ ( sK2_B @ A ) ) )
          & ( in @ A @ ( sK2_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[313]) ).

thf(2305,plain,
    ( ( relation @ sK1_A )
    = $true ),
    inference(copy,[status(thm)],[305]) ).

thf(2306,plain,
    ( ( ( ( relation_rng @ sK1_A )
        = empty_set )
      & ( ( relation_dom @ sK1_A )
       != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[312]) ).

thf(2307,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX0 @ ( relation_field @ SX2 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX1 @ ( relation_field @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2238]) ).

thf(2308,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( relation @ SX1 )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( relation @ SX2 )
                        | ~ ( ~ ( ! [SX3: $i] :
                                    ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX3 ) @ SX0 )
                                    | ~ ( in @ ( ordered_pair @ SX3 @ ( sK11_SY305 @ SX2 @ SX1 @ SX0 ) ) @ SX1 ) )
                                | ~ ( in @ ( ordered_pair @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ ( sK11_SY305 @ SX2 @ SX1 @ SX0 ) ) @ SX2 ) )
                            | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ ( sK12_SY309 @ SX2 @ SX1 @ SX0 ) ) @ SX0 )
                                    | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SX2 @ SX1 @ SX0 ) @ ( sK11_SY305 @ SX2 @ SX1 @ SX0 ) ) @ SX1 ) )
                                | ( in @ ( ordered_pair @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ ( sK11_SY305 @ SX2 @ SX1 @ SX0 ) ) @ SX2 ) ) )
                        | ( SX2
                          = ( relation_composition @ SX0 @ SX1 ) ) )
                  | ~ ! [SX2: $i] :
                        ( ~ ( relation @ SX2 )
                        | ( SX2
                         != ( relation_composition @ SX0 @ SX1 ) )
                        | ~ ( ~ ! [SX3: $i,SX4: $i] :
                                  ( ! [SX5: $i] :
                                      ( ~ ( in @ ( ordered_pair @ SX3 @ SX5 ) @ SX0 )
                                      | ~ ( in @ ( ordered_pair @ SX5 @ SX4 ) @ SX1 ) )
                                  | ( in @ ( ordered_pair @ SX3 @ SX4 ) @ SX2 ) )
                            | ~ ! [SX3: $i,SX4: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SX3 @ SX4 ) @ SX2 )
                                  | ~ ( ~ ( in @ ( ordered_pair @ SX3 @ ( sK9_F @ SX4 @ SX3 @ SX2 @ SX1 @ SX0 ) ) @ SX0 )
                                      | ~ ( in @ ( ordered_pair @ ( sK9_F @ SX4 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX4 ) @ SX1 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2279]) ).

thf(2309,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK2_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK2_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK2_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( ~ ! [SX2: $i] :
                                  ( ~ ( subset @ SX2 @ SX1 )
                                  | ( in @ SX2 @ ( sK3_SY300 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK3_SY300 @ SX1 @ SX0 ) @ ( sK2_B @ SX0 ) ) )
                        | ~ ( in @ SX1 @ ( sK2_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK2_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK2_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK2_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2304]) ).

thf(2310,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX0 @ SX1 )
                  | ! [SX2: $i] : ( subset @ ( cartesian_product2 @ SX0 @ SX2 ) @ ( cartesian_product2 @ SX1 @ SX2 ) ) )
            | ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX0 @ SX1 )
                  | ! [SX2: $i] : ( subset @ ( cartesian_product2 @ SX2 @ SX0 ) @ ( cartesian_product2 @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2229]) ).

thf(2311,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0
                       != ( singleton @ SX1 ) )
                      | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2185]) ).

thf(2312,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i] :
                  ( ! [SX3: $i] :
                      ( ( ordered_pair @ SX0 @ SX1 )
                     != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX0 = SX2 ) )
            | ~ ! [SX2: $i,SX3: $i] :
                  ( ( ( ordered_pair @ SX0 @ SX1 )
                   != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX1 = SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2240]) ).

thf(2313,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ SX1 )
                 != empty_set )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2184]) ).

thf(2314,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SX1 @ SX0 ) @ ( sK14_SY310 @ SX1 @ SX0 ) ) @ SX1 )
                            | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SX1 @ SX0 ) @ ( sK13_C @ SX1 @ SX0 ) ) @ SX0 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SX1 @ SX0 ) @ ( sK14_SY310 @ SX1 @ SX0 ) ) @ SX1 )
                            | ( in @ ( ordered_pair @ ( sK14_SY310 @ SX1 @ SX0 ) @ ( sK13_C @ SX1 @ SX0 ) ) @ SX0 ) ) )
                    | ( SX1
                      = ( relation_inverse @ SX0 ) ) )
              | ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ( SX1
                     != ( relation_inverse @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i,SX3: $i] :
                              ( ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX1 )
                              | ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 ) )
                        | ~ ! [SX2: $i,SX3: $i] :
                              ( ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 )
                              | ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2278]) ).

thf(2315,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2228]) ).

thf(2316,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_intersection2 @ SX0 @ SX1 )
                 != empty_set )
                | ( disjoint @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( disjoint @ SX0 @ SX1 )
                | ( ( set_intersection2 @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2201]) ).

thf(2317,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX1 @ SX0 )
                | ( SX0 = SX1 ) )
          | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0 != SX1 )
                      | ( subset @ SX0 @ SX1 ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0 != SX1 )
                      | ( subset @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2266]) ).

thf(2318,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
                 != SX0 )
                | ~ ( in @ SX1 @ SX0 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( in @ SX1 @ SX0 )
                | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
                  = SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2253]) ).

thf(2319,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2227]) ).

thf(2320,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( subset @ SX0 @ SX1 )
                    | ( subset @ ( relation_dom @ SX0 ) @ ( relation_dom @ SX1 ) ) )
              | ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( subset @ SX0 @ SX1 )
                    | ( subset @ ( relation_rng @ SX0 ) @ ( relation_rng @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2181]) ).

thf(2321,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2273]) ).

thf(2322,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                  | ( SX2
                    = ( set_union2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_union2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2271]) ).

thf(2323,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2242]) ).

thf(2324,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                                  | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                              | ~ ( ! [SX2: $i] :
                                      ( ~ ( in @ SX2 @ SX0 )
                                      | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                                  | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ~ ( ~ ! [SX2: $i] :
                                    ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                        | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                                    | ( in @ SX2 @ SX1 ) )
                              | ~ ! [SX2: $i] :
                                    ( ~ ( in @ SX2 @ SX1 )
                                    | ! [SX3: $i] :
                                        ( ~ ( in @ SX3 @ SX0 )
                                        | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ( SX1 = empty_set ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1 != empty_set )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2196]) ).

thf(2325,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ! [SX2: $i] :
                            ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX2 )
                            | ~ ( in @ SX2 @ SX0 ) )
                        | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ~ ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY312 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK18_SY312 @ SX1 @ SX0 ) @ SX0 ) )
                        | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( union @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( union @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ! [SX3: $i] :
                              ( ~ ( in @ SX2 @ SX3 )
                              | ~ ( in @ SX3 @ SX0 ) )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ~ ( ~ ( in @ SX2 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) )
                              | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2275]) ).

thf(2326,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_intersection2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_intersection2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ~ ( in @ SX3 @ SX1 )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX0 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2274]) ).

thf(2327,plain,
    ( ( ~ ( ~ ( empty @ empty_set )
          | ~ ( relation @ empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2206]) ).

thf(2328,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ( empty @ ( relation_dom @ SX0 ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ( relation @ ( relation_dom @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2209]) ).

thf(2329,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK32_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK32_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK32_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( in @ SX1 @ ( sK32_B @ SX0 ) )
                        | ( in @ ( powerset @ SX1 ) @ ( sK32_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK32_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK32_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK32_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2232]) ).

thf(2330,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ( empty @ ( relation_rng @ SX0 ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ( relation @ ( relation_rng @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2210]) ).

thf(2331,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
                | ( SX1
                  = ( powerset @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( powerset @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ( subset @ SX2 @ SX0 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( subset @ SX2 @ SX0 )
                          | ( in @ SX2 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2268]) ).

thf(2332,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ~ ( in @ SX2 @ SX1 ) )
                | ~ ( disjoint @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2245]) ).

thf(2333,plain,
    ( ( ~ ( ( ( relation_rng @ sK1_A )
           != empty_set )
          | ~ ( ( ( relation_dom @ sK1_A )
               != empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2306]) ).

thf(2334,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ SX2 @ ( sK37_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SX1 @ SX0 ) @ ( sK37_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( relation_rng @ SX0 ) ) )
              | ~ ! [SX1: $i] :
                    ( ( SX1
                     != ( relation_rng @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ! [SX3: $i] :
                                  ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 )
                              | ( in @ SX2 @ SX1 ) )
                        | ~ ! [SX2: $i] :
                              ( ~ ( in @ SX2 @ SX1 )
                              | ( in @ ( ordered_pair @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2199]) ).

thf(2335,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( empty @ SX0 )
                      | ! [SX1: $i] :
                          ( ~ ( element @ SX1 @ SX0 )
                          | ( in @ SX1 @ SX0 ) ) )
                | ~ ! [SX0: $i] :
                      ( ( empty @ SX0 )
                      | ! [SX1: $i] :
                          ( ~ ( in @ SX1 @ SX0 )
                          | ( element @ SX1 @ SX0 ) ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ~ ( empty @ SX0 )
                      | ! [SX1: $i] :
                          ( ~ ( element @ SX1 @ SX0 )
                          | ( empty @ SX1 ) ) )
                | ~ ! [SX0: $i] :
                      ( ~ ( empty @ SX0 )
                      | ! [SX1: $i] :
                          ( ~ ( empty @ SX1 )
                          | ( element @ SX1 @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2269]) ).

thf(2336,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ( element @ ( sK6_B @ SX0 ) @ ( powerset @ SX0 ) )
            | ~ ( empty @ ( sK6_B @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2292]) ).

thf(2337,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2222]) ).

thf(2338,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0
                       != ( singleton @ SX1 ) )
                      | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2177]) ).

thf(2339,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK42_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2197]) ).

thf(2340,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ( ( relation_dom @ SX0 )
                 != empty_set )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ( ( relation_rng @ SX0 )
                 != empty_set )
                | ( SX0 = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2193]) ).

thf(2341,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ( ( relation_rng @ SX0 )
                  = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ( ( relation_dom @ SX0 )
                  = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2183]) ).

thf(2342,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ SX1 )
                 != empty_set )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2176]) ).

thf(2343,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK4_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK4_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK4_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK4_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2298]) ).

thf(2344,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ( element @ SX0 @ ( powerset @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2299]) ).

thf(2345,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                          ( ( sK48_B @ SX0 )
                         != ( ordered_pair @ SX1 @ SX2 ) )
                    | ~ ( in @ ( sK48_B @ SX0 ) @ SX0 ) )
                | ( relation @ SX0 ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ! [SX1: $i] :
                    ( ( SX1
                      = ( ordered_pair @ ( sK46_C @ SX1 @ SX0 ) @ ( sK47_SY329 @ SX1 @ SX0 ) ) )
                    | ~ ( in @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2195]) ).

thf(2346,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX2 )
                  | ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 ) )
            | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX1: $i,SX2: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 )
                        | ( in @ SX1 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2243]) ).

thf(2347,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                            = SX1 ) ) )
                  | ( SX2
                    = ( unordered_pair @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( unordered_pair @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( SX3 = SX0 )
                            | ( SX3 = SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ( SX3 != SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2270]) ).

thf(2348,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2226]) ).

thf(2349,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX0 @ ( relation_dom @ SX2 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX1 @ ( relation_rng @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2179]) ).

thf(2350,plain,
    ( ( ~ ( ~ ( empty @ sK35_A )
          | ~ ( relation @ sK35_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2212]) ).

thf(2351,plain,
    ( ( ~ ( ~ ~ ( empty @ sK34_A )
          | ~ ( relation @ sK34_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2213]) ).

thf(2352,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK30_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ! [SX2: $i] :
                    ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
                | ~ ( disjoint @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2250]) ).

thf(2353,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK29_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK29_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( singleton @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( singleton @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ( SX2 != SX0 )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ( SX2 = SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2267]) ).

thf(2354,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0 = SX1 )
                | ~ ( subset @ SX0 @ SX1 )
                | ( proper_subset @ SX0 @ SX1 ) )
          | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( proper_subset @ SX0 @ SX1 )
                      | ( SX0 != SX1 ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( proper_subset @ SX0 @ SX1 )
                      | ( subset @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2280]) ).

thf(2355,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ! [SX3: $i,SX4: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX4 @ SX1 )
                              | ( ( sK23_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ SX3 @ SX4 ) ) )
                          | ~ ( in @ ( sK23_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ( in @ ( sK25_SY318 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                              | ( ( sK23_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ ( sK24_SY316 @ SX2 @ SX1 @ SX0 ) @ ( sK25_SY318 @ SX2 @ SX1 @ SX0 ) ) ) )
                          | ( in @ ( sK23_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) )
                  | ( SX2
                    = ( cartesian_product2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( cartesian_product2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ! [SX4: $i,SX5: $i] :
                                ( ~ ( in @ SX4 @ SX0 )
                                | ~ ( in @ SX5 @ SX1 )
                                | ( SX3
                                 != ( ordered_pair @ SX4 @ SX5 ) ) )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ( in @ ( sK22_SY313 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                                | ( SX3
                                 != ( ordered_pair @ ( sK21_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ ( sK22_SY313 @ SX3 @ SX2 @ SX1 @ SX0 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2272]) ).

thf(2356,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ~ ( ~ ( element @ ( sK8_B @ SX0 ) @ ( powerset @ SX0 ) )
              | ~ ~ ( empty @ ( sK8_B @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2290]) ).

thf(2357,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ SX1 )
                 != SX0 )
                | ( disjoint @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( disjoint @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2257]) ).

thf(2358,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK15_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_difference @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_difference @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX0 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ~ ( in @ SX3 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2276]) ).

thf(2359,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK40_C @ SX1 @ SX0 ) @ SX2 ) @ SX0 )
                            | ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SX1 @ SX0 ) @ ( sK41_SY326 @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( relation_dom @ SX0 ) ) )
              | ~ ! [SX1: $i] :
                    ( ( SX1
                     != ( relation_dom @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ! [SX3: $i] :
                                  ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 )
                              | ( in @ SX2 @ SX1 ) )
                        | ~ ! [SX2: $i] :
                              ( ~ ( in @ SX2 @ SX1 )
                              | ( in @ ( ordered_pair @ SX2 @ ( sK39_D @ SX2 @ SX1 @ SX0 ) ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2198]) ).

thf(2360,plain,
    ( ( ~ ( ( ( relation_dom @ empty_set )
           != empty_set )
          | ( ( relation_rng @ empty_set )
           != empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2192]) ).

thf(2361,plain,
    ! [SV403: $i] :
      ( ( ( ( singleton @ SV403 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2175]) ).

thf(2362,plain,
    ! [SV404: $i] :
      ( ( ~ ( relation @ SV404 )
        | ( subset @ SV404 @ ( cartesian_product2 @ ( relation_dom @ SV404 ) @ ( relation_rng @ SV404 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2180]) ).

thf(2363,plain,
    ! [SV405: $i] :
      ( ( subset @ empty_set @ SV405 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2182]) ).

thf(2364,plain,
    ! [SV406: $i] :
      ( ( ~ ( subset @ SV406 @ empty_set )
        | ( SV406 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2186]) ).

thf(2365,plain,
    ! [SV407: $i] :
      ( ( ~ ( relation @ SV407 )
        | ! [SY732: $i] :
            ( ~ ( relation @ SY732 )
            | ( subset @ ( relation_dom @ ( relation_composition @ SV407 @ SY732 ) ) @ ( relation_dom @ SV407 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2187]) ).

thf(2366,plain,
    ! [SV408: $i] :
      ( ( ~ ( relation @ SV408 )
        | ! [SY733: $i] :
            ( ~ ( relation @ SY733 )
            | ( subset @ ( relation_rng @ ( relation_composition @ SV408 @ SY733 ) ) @ ( relation_rng @ SY733 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2188]) ).

thf(2367,plain,
    ! [SV409: $i] :
      ( ( ~ ( relation @ SV409 )
        | ! [SY734: $i] :
            ( ~ ( relation @ SY734 )
            | ~ ( subset @ ( relation_rng @ SV409 ) @ ( relation_dom @ SY734 ) )
            | ( ( relation_dom @ ( relation_composition @ SV409 @ SY734 ) )
              = ( relation_dom @ SV409 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2189]) ).

thf(2368,plain,
    ! [SV410: $i] :
      ( ( ~ ( relation @ SV410 )
        | ! [SY735: $i] :
            ( ~ ( relation @ SY735 )
            | ~ ( subset @ ( relation_dom @ SV410 ) @ ( relation_rng @ SY735 ) )
            | ( ( relation_rng @ ( relation_composition @ SY735 @ SV410 ) )
              = ( relation_rng @ SV410 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2190]) ).

thf(2369,plain,
    ! [SV411: $i] :
      ( ( ~ ( relation @ SV411 )
        | ( in @ ( ordered_pair @ ( sK49_B @ SV411 ) @ ( sK50_SY332 @ SV411 ) ) @ SV411 )
        | ( SV411 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2191]) ).

thf(2370,plain,
    ! [SV412: $i] :
      ( ( ~ ( empty @ SV412 )
        | ( relation @ SV412 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2194]) ).

thf(2371,plain,
    ! [SV413: $i] :
      ( ( ~ ( relation @ SV413 )
        | ( ( relation_field @ SV413 )
          = ( set_union2 @ ( relation_dom @ SV413 ) @ ( relation_rng @ SV413 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2200]) ).

thf(2372,plain,
    ! [SV414: $i] :
      ( ( ~ ( relation @ SV414 )
        | ( relation @ ( relation_inverse @ SV414 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2202]) ).

thf(2373,plain,
    ! [SV415: $i] :
      ( ( ! [SY736: $i] :
            ( ~ ( relation @ SV415 )
            | ~ ( relation @ SY736 )
            | ( relation @ ( relation_composition @ SV415 @ SY736 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2203]) ).

thf(2374,plain,
    ! [SV416: $i] :
      ( ( ! [SY737: $i] :
            ( ~ ( relation @ SV416 )
            | ~ ( relation @ SY737 )
            | ( relation @ ( set_union2 @ SV416 @ SY737 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2205]) ).

thf(2375,plain,
    ! [SV417: $i] :
      ( ( ( empty @ SV417 )
        | ~ ( relation @ SV417 )
        | ~ ( empty @ ( relation_dom @ SV417 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2207]) ).

thf(2376,plain,
    ! [SV418: $i] :
      ( ( ( empty @ SV418 )
        | ~ ( relation @ SV418 )
        | ~ ( empty @ ( relation_rng @ SV418 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2208]) ).

thf(2377,plain,
    ! [SV419: $i] :
      ( ( ~ ( relation @ SV419 )
        | ( ( relation_inverse @ ( relation_inverse @ SV419 ) )
          = SV419 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2211]) ).

thf(2378,plain,
    ! [SV420: $i] :
      ( ( ( set_union2 @ SV420 @ empty_set )
        = SV420 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2214]) ).

thf(2379,plain,
    ! [SV421: $i] :
      ( ( ( set_intersection2 @ SV421 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2215]) ).

thf(2380,plain,
    ! [SV422: $i] :
      ( ( ( set_difference @ SV422 @ empty_set )
        = SV422 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2216]) ).

thf(2381,plain,
    ! [SV423: $i] :
      ( ( ( set_difference @ empty_set @ SV423 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2217]) ).

thf(2382,plain,
    ! [SV424: $i] :
      ( ( ~ ( empty @ SV424 )
        | ( SV424 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2218]) ).

thf(2383,plain,
    ! [SV425: $i] :
      ( ( ! [SY738: $i] :
            ( ~ ( in @ SV425 @ SY738 )
            | ( ( set_union2 @ ( singleton @ SV425 ) @ SY738 )
              = SY738 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2219]) ).

thf(2384,plain,
    ! [SV426: $i] :
      ( ( ! [SY739: $i] :
            ( ~ ( disjoint @ ( singleton @ SV426 ) @ SY739 )
            | ~ ( in @ SV426 @ SY739 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2220]) ).

thf(2385,plain,
    ! [SV427: $i] :
      ( ( ! [SY740: $i] :
            ( ( in @ SV427 @ SY740 )
            | ( disjoint @ ( singleton @ SV427 ) @ SY740 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2221]) ).

thf(2386,plain,
    ! [SV428: $i] :
      ( ( ! [SY741: $i] :
            ( ~ ( element @ SY741 @ ( powerset @ SV428 ) )
            | ! [SY742: $i] :
                ( ~ ( in @ SY742 @ SY741 )
                | ( in @ SY742 @ SV428 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2223]) ).

thf(2387,plain,
    ! [SV429: $i] :
      ( ( ! [SY743: $i] :
            ( ~ ( subset @ SV429 @ SY743 )
            | ! [SY744: $i] :
                ( ( in @ SY744 @ SV429 )
                | ( subset @ SV429 @ ( set_difference @ SY743 @ ( singleton @ SY744 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2224]) ).

thf(2388,plain,
    ! [SV430: $i] :
      ( ( ! [SY745: $i] :
            ( ~ ( in @ SV430 @ SY745 )
            | ( subset @ SV430 @ ( union @ SY745 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2225]) ).

thf(2389,plain,
    ! [SV431: $i] :
      ( ( ! [SY746: $i,SY747: $i,SY748: $i] :
            ( ~ ( subset @ SV431 @ SY746 )
            | ~ ( subset @ SY747 @ SY748 )
            | ( subset @ ( cartesian_product2 @ SV431 @ SY747 ) @ ( cartesian_product2 @ SY746 @ SY748 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2230]) ).

thf(2390,plain,
    ! [SV432: $i] :
      ( ( ! [SY749: $i] :
            ( ~ ( subset @ SV432 @ SY749 )
            | ( ( set_union2 @ SV432 @ SY749 )
              = SY749 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2231]) ).

thf(2391,plain,
    ! [SV433: $i] :
      ( ( ! [SY750: $i] : ( subset @ ( set_intersection2 @ SV433 @ SY750 ) @ SV433 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2233]) ).

thf(2392,plain,
    ! [SV434: $i] :
      ( ( ! [SY751: $i,SY752: $i] :
            ( ~ ( subset @ SV434 @ SY751 )
            | ~ ( subset @ SV434 @ SY752 )
            | ( subset @ SV434 @ ( set_intersection2 @ SY751 @ SY752 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2234]) ).

thf(2393,plain,
    ! [SV435: $i] :
      ( ( ! [SY753: $i,SY754: $i] :
            ( ~ ( subset @ SV435 @ SY753 )
            | ~ ( subset @ SY753 @ SY754 )
            | ( subset @ SV435 @ SY754 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2235]) ).

thf(2394,plain,
    ! [SV436: $i] :
      ( ( ! [SY755: $i] :
            ( ~ ( subset @ SV436 @ SY755 )
            | ! [SY756: $i] : ( subset @ ( set_intersection2 @ SV436 @ SY756 ) @ ( set_intersection2 @ SY755 @ SY756 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2236]) ).

thf(2395,plain,
    ! [SV437: $i] :
      ( ( ! [SY757: $i] :
            ( ~ ( subset @ SV437 @ SY757 )
            | ( ( set_intersection2 @ SV437 @ SY757 )
              = SV437 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2237]) ).

thf(2396,plain,
    ! [SV438: $i] :
      ( ( ! [SY758: $i] :
            ( ~ ( subset @ SV438 @ SY758 )
            | ! [SY759: $i] : ( subset @ ( set_difference @ SV438 @ SY759 ) @ ( set_difference @ SY758 @ SY759 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2239]) ).

thf(2397,plain,
    ! [SV439: $i] :
      ( ( ! [SY760: $i] : ( subset @ ( set_difference @ SV439 @ SY760 ) @ SV439 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2241]) ).

thf(2398,plain,
    ! [SV440: $i] :
      ( ( ! [SY761: $i] :
            ( ( set_union2 @ SV440 @ ( set_difference @ SY761 @ SV440 ) )
            = ( set_union2 @ SV440 @ SY761 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2244]) ).

thf(2399,plain,
    ! [SV441: $i] :
      ( ( ! [SY762: $i] :
            ( ( set_difference @ ( set_union2 @ SV441 @ SY762 ) @ SY762 )
            = ( set_difference @ SV441 @ SY762 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2246]) ).

thf(2400,plain,
    ! [SV442: $i] :
      ( ( ! [SY763: $i] :
            ( ~ ( subset @ SV442 @ SY763 )
            | ( SY763
              = ( set_union2 @ SV442 @ ( set_difference @ SY763 @ SV442 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2247]) ).

thf(2401,plain,
    ! [SV443: $i] :
      ( ( ! [SY764: $i] :
            ( ~ ( in @ SV443 @ SY764 )
            | ( ( set_union2 @ ( singleton @ SV443 ) @ SY764 )
              = SY764 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2248]) ).

thf(2402,plain,
    ! [SV444: $i] :
      ( ( ! [SY765: $i] :
            ( ( set_difference @ SV444 @ ( set_difference @ SV444 @ SY765 ) )
            = ( set_intersection2 @ SV444 @ SY765 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2249]) ).

thf(2403,plain,
    ! [SV445: $i] :
      ( ( ! [SY766: $i] :
            ( ~ ( proper_subset @ SY766 @ SV445 )
            | ~ ( subset @ SV445 @ SY766 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2251]) ).

thf(2404,plain,
    ! [SV446: $i] :
      ( ( ! [SY767: $i,SY768: $i] :
            ( ~ ( disjoint @ SY767 @ SY768 )
            | ~ ( subset @ SV446 @ SY767 )
            | ( disjoint @ SV446 @ SY768 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2252]) ).

thf(2405,plain,
    ! [SV447: $i] :
      ( ( ( unordered_pair @ SV447 @ SV447 )
        = ( singleton @ SV447 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2254]) ).

thf(2406,plain,
    ! [SV448: $i] :
      ( ( ! [SY769: $i] :
            ( ~ ( subset @ ( singleton @ SV448 ) @ ( singleton @ SY769 ) )
            | ( SV448 = SY769 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2255]) ).

thf(2407,plain,
    ! [SV449: $i] :
      ( ( ! [SY770: $i] : ( subset @ SV449 @ ( set_union2 @ SV449 @ SY770 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2256]) ).

thf(2408,plain,
    ! [SV450: $i] :
      ( ( ! [SY771: $i,SY772: $i] :
            ( ~ ( subset @ SV450 @ SY771 )
            | ~ ( subset @ SY772 @ SY771 )
            | ( subset @ ( set_union2 @ SV450 @ SY772 ) @ SY771 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2258]) ).

thf(2409,plain,
    ! [SV451: $i] :
      ( ( ! [SY773: $i] :
            ( ! [SY774: $i] :
                ( ( singleton @ SV451 )
               != ( unordered_pair @ SY773 @ SY774 ) )
            | ( SV451 = SY773 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2259]) ).

thf(2410,plain,
    ! [SV452: $i] :
      ( ( ! [SY775: $i] :
            ( ~ ( in @ SV452 @ SY775 )
            | ( subset @ SV452 @ ( union @ SY775 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2260]) ).

thf(2411,plain,
    ! [SV453: $i] :
      ( ( ( union @ ( powerset @ SV453 ) )
        = SV453 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2261]) ).

thf(2412,plain,
    ! [SV454: $i] :
      ( ( ! [SY776: $i,SY777: $i] :
            ( ( ( singleton @ SV454 )
             != ( unordered_pair @ SY776 @ SY777 ) )
            | ( SY776 = SY777 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2262]) ).

thf(2413,plain,
    ! [SV455: $i] :
      ( ( ! [SY778: $i] :
            ( ~ ( in @ SV455 @ SY778 )
            | ~ ( in @ SY778 @ SV455 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2263]) ).

thf(2414,plain,
    ! [SV456: $i] :
      ( ( ! [SY779: $i] :
            ( ( set_union2 @ SV456 @ SY779 )
            = ( set_union2 @ SY779 @ SV456 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2264]) ).

thf(2415,plain,
    ! [SV457: $i] :
      ( ( ! [SY780: $i] :
            ( ( set_intersection2 @ SV457 @ SY780 )
            = ( set_intersection2 @ SY780 @ SV457 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2265]) ).

thf(2416,plain,
    ! [SV458: $i] :
      ( ( ! [SY781: $i] :
            ( ( ordered_pair @ SV458 @ SY781 )
            = ( unordered_pair @ ( unordered_pair @ SV458 @ SY781 ) @ ( singleton @ SV458 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2277]) ).

thf(2417,plain,
    ! [SV459: $i] :
      ( ( ~ ( empty @ ( powerset @ SV459 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2281]) ).

thf(2418,plain,
    ! [SV460: $i] :
      ( ( ! [SY782: $i] :
            ~ ( empty @ ( ordered_pair @ SV460 @ SY782 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2282]) ).

thf(2419,plain,
    ! [SV461: $i] :
      ( ( ~ ( empty @ ( singleton @ SV461 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2283]) ).

thf(2420,plain,
    ! [SV462: $i] :
      ( ( ( empty @ SV462 )
        | ! [SY783: $i] :
            ~ ( empty @ ( set_union2 @ SV462 @ SY783 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2284]) ).

thf(2421,plain,
    ! [SV463: $i] :
      ( ( ! [SY784: $i] :
            ~ ( empty @ ( unordered_pair @ SV463 @ SY784 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2285]) ).

thf(2422,plain,
    ! [SV464: $i] :
      ( ( ( empty @ SV464 )
        | ! [SY785: $i] :
            ~ ( empty @ ( set_union2 @ SY785 @ SV464 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2286]) ).

thf(2423,plain,
    ! [SV465: $i] :
      ( ( ! [SY786: $i] :
            ( ( empty @ SV465 )
            | ( empty @ SY786 )
            | ~ ( empty @ ( cartesian_product2 @ SV465 @ SY786 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2287]) ).

thf(2424,plain,
    ! [SV466: $i] :
      ( ( ( set_union2 @ SV466 @ SV466 )
        = SV466 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2288]) ).

thf(2425,plain,
    ! [SV467: $i] :
      ( ( ( set_intersection2 @ SV467 @ SV467 )
        = SV467 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2289]) ).

thf(2426,plain,
    ( ( empty @ sK5_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2293]) ).

thf(2427,plain,
    ! [SV468: $i] :
      ( ( subset @ SV468 @ SV468 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2294]) ).

thf(2428,plain,
    ! [SV469: $i] :
      ( ( ! [SY787: $i] :
            ( ~ ( disjoint @ SV469 @ SY787 )
            | ( disjoint @ SY787 @ SV469 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2295]) ).

thf(2429,plain,
    ! [SV470: $i] :
      ( ( ! [SY788: $i] :
            ( ~ ( in @ SV470 @ SY788 )
            | ( element @ SV470 @ SY788 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2296]) ).

thf(2430,plain,
    ! [SV471: $i] :
      ( ( ! [SY789: $i] :
            ( ~ ( element @ SV471 @ SY789 )
            | ( empty @ SY789 )
            | ( in @ SV471 @ SY789 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2297]) ).

thf(2431,plain,
    ! [SV472: $i] :
      ( ( ! [SY790: $i,SY791: $i] :
            ( ~ ( element @ SY790 @ ( powerset @ SY791 ) )
            | ~ ( in @ SV472 @ SY790 )
            | ( element @ SV472 @ SY791 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2300]) ).

thf(2432,plain,
    ! [SV473: $i] :
      ( ( ! [SY792: $i,SY793: $i] :
            ( ~ ( element @ SY792 @ ( powerset @ SY793 ) )
            | ~ ( in @ SV473 @ SY792 )
            | ~ ( empty @ SY793 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2301]) ).

thf(2433,plain,
    ! [SV474: $i] :
      ( ( ! [SY794: $i] :
            ( ~ ( empty @ SY794 )
            | ~ ( in @ SV474 @ SY794 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2302]) ).

thf(2434,plain,
    ! [SV475: $i] :
      ( ( ! [SY795: $i] :
            ( ( SV475 = SY795 )
            | ~ ( empty @ SV475 )
            | ~ ( empty @ SY795 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2303]) ).

thf(2435,plain,
    ! [SV476: $i] :
      ( ( ~ ( ~ ! [SY796: $i,SY797: $i] :
                  ( ~ ( relation @ SY797 )
                  | ~ ( in @ ( ordered_pair @ SV476 @ SY796 ) @ SY797 )
                  | ( in @ SV476 @ ( relation_field @ SY797 ) ) )
            | ~ ! [SY798: $i,SY799: $i] :
                  ( ~ ( relation @ SY799 )
                  | ~ ( in @ ( ordered_pair @ SV476 @ SY798 ) @ SY799 )
                  | ( in @ SY798 @ ( relation_field @ SY799 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2307]) ).

thf(2436,plain,
    ! [SV477: $i] :
      ( ( ~ ( relation @ SV477 )
        | ! [SY800: $i] :
            ( ~ ( relation @ SY800 )
            | ~ ( ~ ! [SY801: $i] :
                      ( ~ ( relation @ SY801 )
                      | ~ ( ~ ( ! [SY802: $i] :
                                  ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ SY802 ) @ SV477 )
                                  | ~ ( in @ ( ordered_pair @ SY802 @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY800 ) )
                              | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY801 ) )
                          | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ ( sK12_SY309 @ SY801 @ SY800 @ SV477 ) ) @ SV477 )
                                  | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY801 @ SY800 @ SV477 ) @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY800 ) )
                              | ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY801 ) ) )
                      | ( SY801
                        = ( relation_composition @ SV477 @ SY800 ) ) )
                | ~ ! [SY803: $i] :
                      ( ~ ( relation @ SY803 )
                      | ( SY803
                       != ( relation_composition @ SV477 @ SY800 ) )
                      | ~ ( ~ ! [SY804: $i,SY805: $i] :
                                ( ! [SY806: $i] :
                                    ( ~ ( in @ ( ordered_pair @ SY804 @ SY806 ) @ SV477 )
                                    | ~ ( in @ ( ordered_pair @ SY806 @ SY805 ) @ SY800 ) )
                                | ( in @ ( ordered_pair @ SY804 @ SY805 ) @ SY803 ) )
                          | ~ ! [SY807: $i,SY808: $i] :
                                ( ~ ( in @ ( ordered_pair @ SY807 @ SY808 ) @ SY803 )
                                | ~ ( ~ ( in @ ( ordered_pair @ SY807 @ ( sK9_F @ SY808 @ SY807 @ SY803 @ SY800 @ SV477 ) ) @ SV477 )
                                    | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY808 @ SY807 @ SY803 @ SY800 @ SV477 ) @ SY808 ) @ SY800 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2308]) ).

thf(2437,plain,
    ! [SV478: $i] :
      ( ( ~ ( ~ ! [SY809: $i] :
                  ( ~ ( subset @ SY809 @ ( sK2_B @ SV478 ) )
                  | ( are_equipotent @ SY809 @ ( sK2_B @ SV478 ) )
                  | ( in @ SY809 @ ( sK2_B @ SV478 ) ) )
            | ~ ~ ( ~ ! [SY810: $i] :
                        ( ~ ( ~ ! [SY811: $i] :
                                  ( ~ ( subset @ SY811 @ SY810 )
                                  | ( in @ SY811 @ ( sK3_SY300 @ SY810 @ SV478 ) ) )
                            | ~ ( in @ ( sK3_SY300 @ SY810 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
                        | ~ ( in @ SY810 @ ( sK2_B @ SV478 ) ) )
                  | ~ ~ ( ~ ! [SY812: $i,SY813: $i] :
                              ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
                              | ~ ( subset @ SY813 @ SY812 )
                              | ( in @ SY813 @ ( sK2_B @ SV478 ) ) )
                        | ~ ( in @ SV478 @ ( sK2_B @ SV478 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2309]) ).

thf(2438,plain,
    ! [SV479: $i] :
      ( ( ~ ( ~ ! [SY814: $i] :
                  ( ~ ( subset @ SV479 @ SY814 )
                  | ! [SY815: $i] : ( subset @ ( cartesian_product2 @ SV479 @ SY815 ) @ ( cartesian_product2 @ SY814 @ SY815 ) ) )
            | ~ ! [SY816: $i] :
                  ( ~ ( subset @ SV479 @ SY816 )
                  | ! [SY817: $i] : ( subset @ ( cartesian_product2 @ SY817 @ SV479 ) @ ( cartesian_product2 @ SY817 @ SY816 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2310]) ).

thf(2439,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2311]) ).

thf(2440,plain,
    ! [SV480: $i] :
      ( ( ! [SY818: $i] :
            ~ ( ~ ! [SY819: $i] :
                    ( ! [SY820: $i] :
                        ( ( ordered_pair @ SV480 @ SY818 )
                       != ( ordered_pair @ SY819 @ SY820 ) )
                    | ( SV480 = SY819 ) )
              | ~ ! [SY821: $i,SY822: $i] :
                    ( ( ( ordered_pair @ SV480 @ SY818 )
                     != ( ordered_pair @ SY821 @ SY822 ) )
                    | ( SY818 = SY822 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2312]) ).

thf(2441,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2313]) ).

thf(2442,plain,
    ! [SV481: $i] :
      ( ( ~ ( relation @ SV481 )
        | ~ ( ~ ! [SY823: $i] :
                  ( ~ ( relation @ SY823 )
                  | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                          | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                          | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) ) )
                  | ( SY823
                    = ( relation_inverse @ SV481 ) ) )
            | ~ ! [SY824: $i] :
                  ( ~ ( relation @ SY824 )
                  | ( SY824
                   != ( relation_inverse @ SV481 ) )
                  | ~ ( ~ ! [SY825: $i,SY826: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY825 @ SY826 ) @ SY824 )
                            | ( in @ ( ordered_pair @ SY826 @ SY825 ) @ SV481 ) )
                      | ~ ! [SY827: $i,SY828: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY828 @ SY827 ) @ SV481 )
                            | ( in @ ( ordered_pair @ SY827 @ SY828 ) @ SY824 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2314]) ).

thf(2443,plain,
    ! [SV482: $i] :
      ( ( ! [SY829: $i] :
            ~ ( ~ ! [SY830: $i,SY831: $i] :
                    ( ~ ( in @ SV482 @ SY830 )
                    | ~ ( in @ SY829 @ SY831 )
                    | ( in @ ( ordered_pair @ SV482 @ SY829 ) @ ( cartesian_product2 @ SY830 @ SY831 ) ) )
              | ~ ~ ( ~ ! [SY832: $i] :
                          ( ! [SY833: $i] :
                              ~ ( in @ ( ordered_pair @ SV482 @ SY829 ) @ ( cartesian_product2 @ SY832 @ SY833 ) )
                          | ( in @ SV482 @ SY832 ) )
                    | ~ ! [SY834: $i,SY835: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV482 @ SY829 ) @ ( cartesian_product2 @ SY834 @ SY835 ) )
                          | ( in @ SY829 @ SY835 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2315]) ).

thf(2444,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2316]) ).

thf(2445,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) )
      | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX0 @ SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2317]) ).

thf(2446,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2318]) ).

thf(2447,plain,
    ! [SV483: $i] :
      ( ( ! [SY836: $i] :
            ( ~ ( ~ ( in @ ( sK33_C @ SY836 @ SV483 ) @ SV483 )
                | ~ ~ ( in @ ( sK33_C @ SY836 @ SV483 ) @ SY836 ) )
            | ( element @ SV483 @ ( powerset @ SY836 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2319]) ).

thf(2448,plain,
    ! [SV484: $i] :
      ( ( ~ ( relation @ SV484 )
        | ~ ( ~ ! [SY837: $i] :
                  ( ~ ( relation @ SY837 )
                  | ~ ( subset @ SV484 @ SY837 )
                  | ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SY837 ) ) )
            | ~ ! [SY838: $i] :
                  ( ~ ( relation @ SY838 )
                  | ~ ( subset @ SV484 @ SY838 )
                  | ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SY838 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2320]) ).

thf(2449,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2321]) ).

thf(2450,plain,
    ! [SV485: $i] :
      ( ( ~ ( ~ ! [SY839: $i,SY840: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                                | ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SV485 ) )
                            | ~ ( ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                                | ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY839 ) ) )
                      | ~ ( ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                          | ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SV485 )
                          | ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY839 ) ) )
                  | ( SY840
                    = ( set_union2 @ SV485 @ SY839 ) ) )
            | ~ ! [SY841: $i,SY842: $i] :
                  ( ( SY842
                   != ( set_union2 @ SV485 @ SY841 ) )
                  | ~ ( ~ ! [SY843: $i] :
                            ( ~ ( in @ SY843 @ SY842 )
                            | ( in @ SY843 @ SV485 )
                            | ( in @ SY843 @ SY841 ) )
                      | ~ ~ ( ~ ! [SY844: $i] :
                                  ( ~ ( in @ SY844 @ SV485 )
                                  | ( in @ SY844 @ SY842 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY841 )
                                  | ( in @ SX3 @ SY842 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2322]) ).

thf(2451,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2323]) ).

thf(2452,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                                | ( in @ SX2 @ SX1 ) )
                          | ~ ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX1 )
                                | ! [SX3: $i] :
                                    ( ~ ( in @ SX3 @ SX0 )
                                    | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ( SX1 = empty_set ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1 != empty_set )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2324]) ).

thf(2453,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY312 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_SY312 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( union @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ! [SX3: $i] :
                          ( ~ ( in @ SX2 @ SX3 )
                          | ~ ( in @ SX3 @ SX0 ) )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ~ ( ~ ( in @ SX2 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2325]) ).

thf(2454,plain,
    ! [SV486: $i] :
      ( ( ~ ( ~ ! [SY846: $i,SY847: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SV486 )
                          | ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY846 )
                          | ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SV486 )
                                | ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) )
                            | ~ ( ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY846 )
                                | ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) ) ) )
                  | ( SY847
                    = ( set_intersection2 @ SV486 @ SY846 ) ) )
            | ~ ! [SY848: $i,SY849: $i] :
                  ( ( SY849
                   != ( set_intersection2 @ SV486 @ SY848 ) )
                  | ~ ( ~ ! [SY850: $i] :
                            ( ~ ( in @ SY850 @ SV486 )
                            | ~ ( in @ SY850 @ SY848 )
                            | ( in @ SY850 @ SY849 ) )
                      | ~ ~ ( ~ ! [SY851: $i] :
                                  ( ~ ( in @ SY851 @ SY849 )
                                  | ( in @ SY851 @ SV486 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY849 )
                                  | ( in @ SX3 @ SY848 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2326]) ).

thf(2455,plain,
    ( ( ~ ( empty @ empty_set )
      | ~ ( relation @ empty_set ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2327]) ).

thf(2456,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( empty @ ( relation_dom @ SX0 ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( relation @ ( relation_dom @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2328]) ).

thf(2457,plain,
    ! [SV487: $i] :
      ( ( ~ ( ~ ! [SY853: $i] :
                  ( ~ ( subset @ SY853 @ ( sK32_B @ SV487 ) )
                  | ( are_equipotent @ SY853 @ ( sK32_B @ SV487 ) )
                  | ( in @ SY853 @ ( sK32_B @ SV487 ) ) )
            | ~ ~ ( ~ ! [SY854: $i] :
                        ( ~ ( in @ SY854 @ ( sK32_B @ SV487 ) )
                        | ( in @ ( powerset @ SY854 ) @ ( sK32_B @ SV487 ) ) )
                  | ~ ~ ( ~ ! [SY855: $i,SY856: $i] :
                              ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
                              | ~ ( subset @ SY856 @ SY855 )
                              | ( in @ SY856 @ ( sK32_B @ SV487 ) ) )
                        | ~ ( in @ SV487 @ ( sK32_B @ SV487 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2329]) ).

thf(2458,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( empty @ ( relation_rng @ SX0 ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( relation @ ( relation_rng @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2330]) ).

thf(2459,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( powerset @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( subset @ SX2 @ SX0 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( subset @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2331]) ).

thf(2460,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2332]) ).

thf(2461,plain,
    ( ( ( ( relation_rng @ sK1_A )
       != empty_set )
      | ~ ( ( ( relation_dom @ sK1_A )
           != empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2333]) ).

thf(2462,plain,
    ! [SV488: $i] :
      ( ( ~ ( relation @ SV488 )
        | ~ ( ~ ! [SY857: $i] :
                  ( ~ ( ~ ( ! [SY858: $i] :
                              ~ ( in @ ( ordered_pair @ SY858 @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                          | ~ ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY857 @ SV488 ) @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                          | ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) ) )
                  | ( SY857
                    = ( relation_rng @ SV488 ) ) )
            | ~ ! [SY859: $i] :
                  ( ( SY859
                   != ( relation_rng @ SV488 ) )
                  | ~ ( ~ ! [SY860: $i] :
                            ( ! [SY861: $i] :
                                ~ ( in @ ( ordered_pair @ SY861 @ SY860 ) @ SV488 )
                            | ( in @ SY860 @ SY859 ) )
                      | ~ ! [SY862: $i] :
                            ( ~ ( in @ SY862 @ SY859 )
                            | ( in @ ( ordered_pair @ ( sK36_D @ SY862 @ SY859 @ SV488 ) @ SY862 ) @ SV488 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2334]) ).

thf(2463,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( element @ SX1 @ SX0 )
                      | ( in @ SX1 @ SX0 ) ) )
            | ~ ! [SX0: $i] :
                  ( ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( in @ SX1 @ SX0 )
                      | ( element @ SX1 @ SX0 ) ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ~ ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( element @ SX1 @ SX0 )
                      | ( empty @ SX1 ) ) )
            | ~ ! [SX0: $i] :
                  ( ~ ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( empty @ SX1 )
                      | ( element @ SX1 @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2335]) ).

thf(2464,plain,
    ! [SV489: $i] :
      ( ( ~ ( ~ ( element @ ( sK6_B @ SV489 ) @ ( powerset @ SV489 ) )
            | ~ ( empty @ ( sK6_B @ SV489 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2336]) ).

thf(2465,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2337]) ).

thf(2466,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2338]) ).

thf(2467,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK42_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2339]) ).

thf(2468,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
             != empty_set )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
             != empty_set )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2340]) ).

thf(2469,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
              = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
              = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2341]) ).

thf(2470,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2342]) ).

thf(2471,plain,
    ! [SV490: $i] :
      ( ( ! [SY863: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK4_C @ SY863 @ SV490 ) @ SV490 )
                    | ~ ( in @ ( sK4_C @ SY863 @ SV490 ) @ SY863 ) )
                | ~ ( ( in @ ( sK4_C @ SY863 @ SV490 ) @ SV490 )
                    | ( in @ ( sK4_C @ SY863 @ SV490 ) @ SY863 ) ) )
            | ( SV490 = SY863 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2343]) ).

thf(2472,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2344]) ).

thf(2473,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK48_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK48_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK46_C @ SX1 @ SX0 ) @ ( sK47_SY329 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2345]) ).

thf(2474,plain,
    ! [SV491: $i] :
      ( ( ~ ( ~ ! [SY864: $i,SY865: $i] :
                  ( ~ ( in @ SV491 @ SY865 )
                  | ~ ( in @ SY864 @ SY865 )
                  | ( subset @ ( unordered_pair @ SV491 @ SY864 ) @ SY865 ) )
            | ~ ~ ( ~ ! [SY866: $i,SY867: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV491 @ SY866 ) @ SY867 )
                        | ( in @ SV491 @ SY867 ) )
                  | ~ ! [SY868: $i,SY869: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV491 @ SY868 ) @ SY869 )
                        | ( in @ SY868 @ SY869 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2346]) ).

thf(2475,plain,
    ! [SV492: $i] :
      ( ( ~ ( ~ ! [SY870: $i,SY871: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                                | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                                 != SV492 ) )
                            | ~ ( ~ ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                                | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                                 != SY870 ) ) )
                      | ~ ( ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                          | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                            = SV492 )
                          | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                            = SY870 ) ) )
                  | ( SY871
                    = ( unordered_pair @ SV492 @ SY870 ) ) )
            | ~ ! [SY872: $i,SY873: $i] :
                  ( ( SY873
                   != ( unordered_pair @ SV492 @ SY872 ) )
                  | ~ ( ~ ! [SY874: $i] :
                            ( ~ ( in @ SY874 @ SY873 )
                            | ( SY874 = SV492 )
                            | ( SY874 = SY872 ) )
                      | ~ ~ ( ~ ! [SY875: $i] :
                                  ( ( SY875 != SV492 )
                                  | ( in @ SY875 @ SY873 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY872 )
                                  | ( in @ SX3 @ SY873 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2347]) ).

thf(2476,plain,
    ! [SV493: $i] :
      ( ( ! [SY877: $i] :
            ~ ( ~ ! [SY878: $i,SY879: $i] :
                    ( ~ ( in @ SV493 @ SY878 )
                    | ~ ( in @ SY877 @ SY879 )
                    | ( in @ ( ordered_pair @ SV493 @ SY877 ) @ ( cartesian_product2 @ SY878 @ SY879 ) ) )
              | ~ ~ ( ~ ! [SY880: $i] :
                          ( ! [SY881: $i] :
                              ~ ( in @ ( ordered_pair @ SV493 @ SY877 ) @ ( cartesian_product2 @ SY880 @ SY881 ) )
                          | ( in @ SV493 @ SY880 ) )
                    | ~ ! [SY882: $i,SY883: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV493 @ SY877 ) @ ( cartesian_product2 @ SY882 @ SY883 ) )
                          | ( in @ SY877 @ SY883 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2348]) ).

thf(2477,plain,
    ! [SV494: $i] :
      ( ( ~ ( ~ ! [SY884: $i,SY885: $i] :
                  ( ~ ( relation @ SY885 )
                  | ~ ( in @ ( ordered_pair @ SV494 @ SY884 ) @ SY885 )
                  | ( in @ SV494 @ ( relation_dom @ SY885 ) ) )
            | ~ ! [SY886: $i,SY887: $i] :
                  ( ~ ( relation @ SY887 )
                  | ~ ( in @ ( ordered_pair @ SV494 @ SY886 ) @ SY887 )
                  | ( in @ SY886 @ ( relation_rng @ SY887 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2349]) ).

thf(2478,plain,
    ( ( ~ ( empty @ sK35_A )
      | ~ ( relation @ sK35_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2350]) ).

thf(2479,plain,
    ( ( ~ ~ ( empty @ sK34_A )
      | ~ ( relation @ sK34_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2351]) ).

thf(2480,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK30_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2352]) ).

thf(2481,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK29_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK29_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( singleton @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ( SX2 != SX0 )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( SX2 = SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2353]) ).

thf(2482,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) )
      | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( SX0 != SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( subset @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2354]) ).

thf(2483,plain,
    ! [SV495: $i] :
      ( ( ~ ( ~ ! [SY888: $i,SY889: $i] :
                  ( ~ ( ~ ( ! [SY890: $i,SY891: $i] :
                              ( ~ ( in @ SY890 @ SV495 )
                              | ~ ( in @ SY891 @ SY888 )
                              | ( ( sK23_D @ SY889 @ SY888 @ SV495 )
                               != ( ordered_pair @ SY890 @ SY891 ) ) )
                          | ~ ( in @ ( sK23_D @ SY889 @ SY888 @ SV495 ) @ SY889 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY889 @ SY888 @ SV495 ) @ SV495 )
                                    | ~ ( in @ ( sK25_SY318 @ SY889 @ SY888 @ SV495 ) @ SY888 ) )
                              | ( ( sK23_D @ SY889 @ SY888 @ SV495 )
                               != ( ordered_pair @ ( sK24_SY316 @ SY889 @ SY888 @ SV495 ) @ ( sK25_SY318 @ SY889 @ SY888 @ SV495 ) ) ) )
                          | ( in @ ( sK23_D @ SY889 @ SY888 @ SV495 ) @ SY889 ) ) )
                  | ( SY889
                    = ( cartesian_product2 @ SV495 @ SY888 ) ) )
            | ~ ! [SY892: $i,SY893: $i] :
                  ( ( SY893
                   != ( cartesian_product2 @ SV495 @ SY892 ) )
                  | ~ ( ~ ! [SY894: $i] :
                            ( ! [SY895: $i,SY896: $i] :
                                ( ~ ( in @ SY895 @ SV495 )
                                | ~ ( in @ SY896 @ SY892 )
                                | ( SY894
                                 != ( ordered_pair @ SY895 @ SY896 ) ) )
                            | ( in @ SY894 @ SY893 ) )
                      | ~ ! [SY897: $i] :
                            ( ~ ( in @ SY897 @ SY893 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY897 @ SY893 @ SY892 @ SV495 ) @ SV495 )
                                      | ~ ( in @ ( sK22_SY313 @ SY897 @ SY893 @ SY892 @ SV495 ) @ SY892 ) )
                                | ( SY897
                                 != ( ordered_pair @ ( sK21_E @ SY897 @ SY893 @ SY892 @ SV495 ) @ ( sK22_SY313 @ SY897 @ SY893 @ SY892 @ SV495 ) ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2355]) ).

thf(2484,plain,
    ! [SV496: $i] :
      ( ( ( empty @ SV496 )
        | ~ ( ~ ( element @ ( sK8_B @ SV496 ) @ ( powerset @ SV496 ) )
            | ~ ~ ( empty @ ( sK8_B @ SV496 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2356]) ).

thf(2485,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2357]) ).

thf(2486,plain,
    ! [SV497: $i] :
      ( ( ~ ( ~ ! [SY898: $i,SY899: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SV497 )
                          | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY898 )
                          | ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SV497 )
                                | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) )
                            | ~ ( ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY898 )
                                | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) ) ) )
                  | ( SY899
                    = ( set_difference @ SV497 @ SY898 ) ) )
            | ~ ! [SY900: $i,SY901: $i] :
                  ( ( SY901
                   != ( set_difference @ SV497 @ SY900 ) )
                  | ~ ( ~ ! [SY902: $i] :
                            ( ~ ( in @ SY902 @ SV497 )
                            | ( in @ SY902 @ SY900 )
                            | ( in @ SY902 @ SY901 ) )
                      | ~ ~ ( ~ ! [SY903: $i] :
                                  ( ~ ( in @ SY903 @ SY901 )
                                  | ( in @ SY903 @ SV497 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY901 )
                                  | ~ ( in @ SX3 @ SY900 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2358]) ).

thf(2487,plain,
    ! [SV498: $i] :
      ( ( ~ ( relation @ SV498 )
        | ~ ( ~ ! [SY905: $i] :
                  ( ~ ( ~ ( ! [SY906: $i] :
                              ~ ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ SY906 ) @ SV498 )
                          | ~ ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ ( sK41_SY326 @ SY905 @ SV498 ) ) @ SV498 )
                          | ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) ) )
                  | ( SY905
                    = ( relation_dom @ SV498 ) ) )
            | ~ ! [SY907: $i] :
                  ( ( SY907
                   != ( relation_dom @ SV498 ) )
                  | ~ ( ~ ! [SY908: $i] :
                            ( ! [SY909: $i] :
                                ~ ( in @ ( ordered_pair @ SY908 @ SY909 ) @ SV498 )
                            | ( in @ SY908 @ SY907 ) )
                      | ~ ! [SY910: $i] :
                            ( ~ ( in @ SY910 @ SY907 )
                            | ( in @ ( ordered_pair @ SY910 @ ( sK39_D @ SY910 @ SY907 @ SV498 ) ) @ SV498 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2359]) ).

thf(2488,plain,
    ( ( ( ( relation_dom @ empty_set )
       != empty_set )
      | ( ( relation_rng @ empty_set )
       != empty_set ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2360]) ).

thf(2489,plain,
    ! [SV403: $i] :
      ( ( ( singleton @ SV403 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2361]) ).

thf(2490,plain,
    ! [SV404: $i] :
      ( ( ( ~ ( relation @ SV404 ) )
        = $true )
      | ( ( subset @ SV404 @ ( cartesian_product2 @ ( relation_dom @ SV404 ) @ ( relation_rng @ SV404 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2362]) ).

thf(2491,plain,
    ! [SV406: $i] :
      ( ( ( ~ ( subset @ SV406 @ empty_set ) )
        = $true )
      | ( ( SV406 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2364]) ).

thf(2492,plain,
    ! [SV407: $i] :
      ( ( ( ~ ( relation @ SV407 ) )
        = $true )
      | ( ( ! [SY732: $i] :
              ( ~ ( relation @ SY732 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV407 @ SY732 ) ) @ ( relation_dom @ SV407 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2365]) ).

thf(2493,plain,
    ! [SV408: $i] :
      ( ( ( ~ ( relation @ SV408 ) )
        = $true )
      | ( ( ! [SY733: $i] :
              ( ~ ( relation @ SY733 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV408 @ SY733 ) ) @ ( relation_rng @ SY733 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2366]) ).

thf(2494,plain,
    ! [SV409: $i] :
      ( ( ( ~ ( relation @ SV409 ) )
        = $true )
      | ( ( ! [SY734: $i] :
              ( ~ ( relation @ SY734 )
              | ~ ( subset @ ( relation_rng @ SV409 ) @ ( relation_dom @ SY734 ) )
              | ( ( relation_dom @ ( relation_composition @ SV409 @ SY734 ) )
                = ( relation_dom @ SV409 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2367]) ).

thf(2495,plain,
    ! [SV410: $i] :
      ( ( ( ~ ( relation @ SV410 ) )
        = $true )
      | ( ( ! [SY735: $i] :
              ( ~ ( relation @ SY735 )
              | ~ ( subset @ ( relation_dom @ SV410 ) @ ( relation_rng @ SY735 ) )
              | ( ( relation_rng @ ( relation_composition @ SY735 @ SV410 ) )
                = ( relation_rng @ SV410 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2368]) ).

thf(2496,plain,
    ! [SV411: $i] :
      ( ( ( ~ ( relation @ SV411 ) )
        = $true )
      | ( ( ( in @ ( ordered_pair @ ( sK49_B @ SV411 ) @ ( sK50_SY332 @ SV411 ) ) @ SV411 )
          | ( SV411 = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2369]) ).

thf(2497,plain,
    ! [SV412: $i] :
      ( ( ( ~ ( empty @ SV412 ) )
        = $true )
      | ( ( relation @ SV412 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2370]) ).

thf(2498,plain,
    ! [SV413: $i] :
      ( ( ( ~ ( relation @ SV413 ) )
        = $true )
      | ( ( ( relation_field @ SV413 )
          = ( set_union2 @ ( relation_dom @ SV413 ) @ ( relation_rng @ SV413 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2371]) ).

thf(2499,plain,
    ! [SV414: $i] :
      ( ( ( ~ ( relation @ SV414 ) )
        = $true )
      | ( ( relation @ ( relation_inverse @ SV414 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2372]) ).

thf(2500,plain,
    ! [SV499: $i,SV415: $i] :
      ( ( ~ ( relation @ SV415 )
        | ~ ( relation @ SV499 )
        | ( relation @ ( relation_composition @ SV415 @ SV499 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2373]) ).

thf(2501,plain,
    ! [SV500: $i,SV416: $i] :
      ( ( ~ ( relation @ SV416 )
        | ~ ( relation @ SV500 )
        | ( relation @ ( set_union2 @ SV416 @ SV500 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2374]) ).

thf(2502,plain,
    ! [SV417: $i] :
      ( ( ( ( empty @ SV417 )
          | ~ ( relation @ SV417 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV417 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2375]) ).

thf(2503,plain,
    ! [SV418: $i] :
      ( ( ( ( empty @ SV418 )
          | ~ ( relation @ SV418 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV418 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2376]) ).

thf(2504,plain,
    ! [SV419: $i] :
      ( ( ( ~ ( relation @ SV419 ) )
        = $true )
      | ( ( ( relation_inverse @ ( relation_inverse @ SV419 ) )
          = SV419 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2377]) ).

thf(2505,plain,
    ! [SV424: $i] :
      ( ( ( ~ ( empty @ SV424 ) )
        = $true )
      | ( ( SV424 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2382]) ).

thf(2506,plain,
    ! [SV501: $i,SV425: $i] :
      ( ( ~ ( in @ SV425 @ SV501 )
        | ( ( set_union2 @ ( singleton @ SV425 ) @ SV501 )
          = SV501 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2383]) ).

thf(2507,plain,
    ! [SV502: $i,SV426: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV426 ) @ SV502 )
        | ~ ( in @ SV426 @ SV502 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2384]) ).

thf(2508,plain,
    ! [SV503: $i,SV427: $i] :
      ( ( ( in @ SV427 @ SV503 )
        | ( disjoint @ ( singleton @ SV427 ) @ SV503 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2385]) ).

thf(2509,plain,
    ! [SV428: $i,SV504: $i] :
      ( ( ~ ( element @ SV504 @ ( powerset @ SV428 ) )
        | ! [SY911: $i] :
            ( ~ ( in @ SY911 @ SV504 )
            | ( in @ SY911 @ SV428 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2386]) ).

thf(2510,plain,
    ! [SV505: $i,SV429: $i] :
      ( ( ~ ( subset @ SV429 @ SV505 )
        | ! [SY912: $i] :
            ( ( in @ SY912 @ SV429 )
            | ( subset @ SV429 @ ( set_difference @ SV505 @ ( singleton @ SY912 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2387]) ).

thf(2511,plain,
    ! [SV506: $i,SV430: $i] :
      ( ( ~ ( in @ SV430 @ SV506 )
        | ( subset @ SV430 @ ( union @ SV506 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2388]) ).

thf(2512,plain,
    ! [SV507: $i,SV431: $i] :
      ( ( ! [SY913: $i,SY914: $i] :
            ( ~ ( subset @ SV431 @ SV507 )
            | ~ ( subset @ SY913 @ SY914 )
            | ( subset @ ( cartesian_product2 @ SV431 @ SY913 ) @ ( cartesian_product2 @ SV507 @ SY914 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2389]) ).

thf(2513,plain,
    ! [SV508: $i,SV432: $i] :
      ( ( ~ ( subset @ SV432 @ SV508 )
        | ( ( set_union2 @ SV432 @ SV508 )
          = SV508 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2390]) ).

thf(2514,plain,
    ! [SV509: $i,SV433: $i] :
      ( ( subset @ ( set_intersection2 @ SV433 @ SV509 ) @ SV433 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2391]) ).

thf(2515,plain,
    ! [SV510: $i,SV434: $i] :
      ( ( ! [SY915: $i] :
            ( ~ ( subset @ SV434 @ SV510 )
            | ~ ( subset @ SV434 @ SY915 )
            | ( subset @ SV434 @ ( set_intersection2 @ SV510 @ SY915 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2392]) ).

thf(2516,plain,
    ! [SV511: $i,SV435: $i] :
      ( ( ! [SY916: $i] :
            ( ~ ( subset @ SV435 @ SV511 )
            | ~ ( subset @ SV511 @ SY916 )
            | ( subset @ SV435 @ SY916 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2393]) ).

thf(2517,plain,
    ! [SV512: $i,SV436: $i] :
      ( ( ~ ( subset @ SV436 @ SV512 )
        | ! [SY917: $i] : ( subset @ ( set_intersection2 @ SV436 @ SY917 ) @ ( set_intersection2 @ SV512 @ SY917 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2394]) ).

thf(2518,plain,
    ! [SV513: $i,SV437: $i] :
      ( ( ~ ( subset @ SV437 @ SV513 )
        | ( ( set_intersection2 @ SV437 @ SV513 )
          = SV437 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2395]) ).

thf(2519,plain,
    ! [SV514: $i,SV438: $i] :
      ( ( ~ ( subset @ SV438 @ SV514 )
        | ! [SY918: $i] : ( subset @ ( set_difference @ SV438 @ SY918 ) @ ( set_difference @ SV514 @ SY918 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2396]) ).

thf(2520,plain,
    ! [SV515: $i,SV439: $i] :
      ( ( subset @ ( set_difference @ SV439 @ SV515 ) @ SV439 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2397]) ).

thf(2521,plain,
    ! [SV516: $i,SV440: $i] :
      ( ( ( set_union2 @ SV440 @ ( set_difference @ SV516 @ SV440 ) )
        = ( set_union2 @ SV440 @ SV516 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2398]) ).

thf(2522,plain,
    ! [SV517: $i,SV441: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV441 @ SV517 ) @ SV517 )
        = ( set_difference @ SV441 @ SV517 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2399]) ).

thf(2523,plain,
    ! [SV518: $i,SV442: $i] :
      ( ( ~ ( subset @ SV442 @ SV518 )
        | ( SV518
          = ( set_union2 @ SV442 @ ( set_difference @ SV518 @ SV442 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2400]) ).

thf(2524,plain,
    ! [SV519: $i,SV443: $i] :
      ( ( ~ ( in @ SV443 @ SV519 )
        | ( ( set_union2 @ ( singleton @ SV443 ) @ SV519 )
          = SV519 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2401]) ).

thf(2525,plain,
    ! [SV520: $i,SV444: $i] :
      ( ( ( set_difference @ SV444 @ ( set_difference @ SV444 @ SV520 ) )
        = ( set_intersection2 @ SV444 @ SV520 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2402]) ).

thf(2526,plain,
    ! [SV445: $i,SV521: $i] :
      ( ( ~ ( proper_subset @ SV521 @ SV445 )
        | ~ ( subset @ SV445 @ SV521 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2403]) ).

thf(2527,plain,
    ! [SV446: $i,SV522: $i] :
      ( ( ! [SY919: $i] :
            ( ~ ( disjoint @ SV522 @ SY919 )
            | ~ ( subset @ SV446 @ SV522 )
            | ( disjoint @ SV446 @ SY919 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2404]) ).

thf(2528,plain,
    ! [SV523: $i,SV448: $i] :
      ( ( ~ ( subset @ ( singleton @ SV448 ) @ ( singleton @ SV523 ) )
        | ( SV448 = SV523 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2406]) ).

thf(2529,plain,
    ! [SV524: $i,SV449: $i] :
      ( ( subset @ SV449 @ ( set_union2 @ SV449 @ SV524 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2407]) ).

thf(2530,plain,
    ! [SV525: $i,SV450: $i] :
      ( ( ! [SY920: $i] :
            ( ~ ( subset @ SV450 @ SV525 )
            | ~ ( subset @ SY920 @ SV525 )
            | ( subset @ ( set_union2 @ SV450 @ SY920 ) @ SV525 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2408]) ).

thf(2531,plain,
    ! [SV526: $i,SV451: $i] :
      ( ( ! [SY921: $i] :
            ( ( singleton @ SV451 )
           != ( unordered_pair @ SV526 @ SY921 ) )
        | ( SV451 = SV526 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2409]) ).

thf(2532,plain,
    ! [SV527: $i,SV452: $i] :
      ( ( ~ ( in @ SV452 @ SV527 )
        | ( subset @ SV452 @ ( union @ SV527 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2410]) ).

thf(2533,plain,
    ! [SV528: $i,SV454: $i] :
      ( ( ! [SY922: $i] :
            ( ( ( singleton @ SV454 )
             != ( unordered_pair @ SV528 @ SY922 ) )
            | ( SV528 = SY922 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2412]) ).

thf(2534,plain,
    ! [SV529: $i,SV455: $i] :
      ( ( ~ ( in @ SV455 @ SV529 )
        | ~ ( in @ SV529 @ SV455 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2413]) ).

thf(2535,plain,
    ! [SV530: $i,SV456: $i] :
      ( ( ( set_union2 @ SV456 @ SV530 )
        = ( set_union2 @ SV530 @ SV456 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2414]) ).

thf(2536,plain,
    ! [SV531: $i,SV457: $i] :
      ( ( ( set_intersection2 @ SV457 @ SV531 )
        = ( set_intersection2 @ SV531 @ SV457 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2415]) ).

thf(2537,plain,
    ! [SV532: $i,SV458: $i] :
      ( ( ( ordered_pair @ SV458 @ SV532 )
        = ( unordered_pair @ ( unordered_pair @ SV458 @ SV532 ) @ ( singleton @ SV458 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2416]) ).

thf(2538,plain,
    ! [SV459: $i] :
      ( ( empty @ ( powerset @ SV459 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2417]) ).

thf(2539,plain,
    ! [SV533: $i,SV460: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV460 @ SV533 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2418]) ).

thf(2540,plain,
    ! [SV461: $i] :
      ( ( empty @ ( singleton @ SV461 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2419]) ).

thf(2541,plain,
    ! [SV462: $i] :
      ( ( ( empty @ SV462 )
        = $true )
      | ( ( ! [SY783: $i] :
              ~ ( empty @ ( set_union2 @ SV462 @ SY783 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2420]) ).

thf(2542,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ~ ( empty @ ( unordered_pair @ SV463 @ SV534 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2421]) ).

thf(2543,plain,
    ! [SV464: $i] :
      ( ( ( empty @ SV464 )
        = $true )
      | ( ( ! [SY785: $i] :
              ~ ( empty @ ( set_union2 @ SY785 @ SV464 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2422]) ).

thf(2544,plain,
    ! [SV535: $i,SV465: $i] :
      ( ( ( empty @ SV465 )
        | ( empty @ SV535 )
        | ~ ( empty @ ( cartesian_product2 @ SV465 @ SV535 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2423]) ).

thf(2545,plain,
    ! [SV536: $i,SV469: $i] :
      ( ( ~ ( disjoint @ SV469 @ SV536 )
        | ( disjoint @ SV536 @ SV469 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2428]) ).

thf(2546,plain,
    ! [SV537: $i,SV470: $i] :
      ( ( ~ ( in @ SV470 @ SV537 )
        | ( element @ SV470 @ SV537 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2429]) ).

thf(2547,plain,
    ! [SV538: $i,SV471: $i] :
      ( ( ~ ( element @ SV471 @ SV538 )
        | ( empty @ SV538 )
        | ( in @ SV471 @ SV538 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2430]) ).

thf(2548,plain,
    ! [SV472: $i,SV539: $i] :
      ( ( ! [SY923: $i] :
            ( ~ ( element @ SV539 @ ( powerset @ SY923 ) )
            | ~ ( in @ SV472 @ SV539 )
            | ( element @ SV472 @ SY923 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2431]) ).

thf(2549,plain,
    ! [SV473: $i,SV540: $i] :
      ( ( ! [SY924: $i] :
            ( ~ ( element @ SV540 @ ( powerset @ SY924 ) )
            | ~ ( in @ SV473 @ SV540 )
            | ~ ( empty @ SY924 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2432]) ).

thf(2550,plain,
    ! [SV474: $i,SV541: $i] :
      ( ( ~ ( empty @ SV541 )
        | ~ ( in @ SV474 @ SV541 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2433]) ).

thf(2551,plain,
    ! [SV542: $i,SV475: $i] :
      ( ( ( SV475 = SV542 )
        | ~ ( empty @ SV475 )
        | ~ ( empty @ SV542 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2434]) ).

thf(2552,plain,
    ! [SV476: $i] :
      ( ( ~ ! [SY796: $i,SY797: $i] :
              ( ~ ( relation @ SY797 )
              | ~ ( in @ ( ordered_pair @ SV476 @ SY796 ) @ SY797 )
              | ( in @ SV476 @ ( relation_field @ SY797 ) ) )
        | ~ ! [SY798: $i,SY799: $i] :
              ( ~ ( relation @ SY799 )
              | ~ ( in @ ( ordered_pair @ SV476 @ SY798 ) @ SY799 )
              | ( in @ SY798 @ ( relation_field @ SY799 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2435]) ).

thf(2553,plain,
    ! [SV477: $i] :
      ( ( ( ~ ( relation @ SV477 ) )
        = $true )
      | ( ( ! [SY800: $i] :
              ( ~ ( relation @ SY800 )
              | ~ ( ~ ! [SY801: $i] :
                        ( ~ ( relation @ SY801 )
                        | ~ ( ~ ( ! [SY802: $i] :
                                    ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ SY802 ) @ SV477 )
                                    | ~ ( in @ ( ordered_pair @ SY802 @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY800 ) )
                                | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY801 ) )
                            | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ ( sK12_SY309 @ SY801 @ SY800 @ SV477 ) ) @ SV477 )
                                    | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY801 @ SY800 @ SV477 ) @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY800 ) )
                                | ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY801 ) ) )
                        | ( SY801
                          = ( relation_composition @ SV477 @ SY800 ) ) )
                  | ~ ! [SY803: $i] :
                        ( ~ ( relation @ SY803 )
                        | ( SY803
                         != ( relation_composition @ SV477 @ SY800 ) )
                        | ~ ( ~ ! [SY804: $i,SY805: $i] :
                                  ( ! [SY806: $i] :
                                      ( ~ ( in @ ( ordered_pair @ SY804 @ SY806 ) @ SV477 )
                                      | ~ ( in @ ( ordered_pair @ SY806 @ SY805 ) @ SY800 ) )
                                  | ( in @ ( ordered_pair @ SY804 @ SY805 ) @ SY803 ) )
                            | ~ ! [SY807: $i,SY808: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY807 @ SY808 ) @ SY803 )
                                  | ~ ( ~ ( in @ ( ordered_pair @ SY807 @ ( sK9_F @ SY808 @ SY807 @ SY803 @ SY800 @ SV477 ) ) @ SV477 )
                                      | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY808 @ SY807 @ SY803 @ SY800 @ SV477 ) @ SY808 ) @ SY800 ) ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2436]) ).

thf(2554,plain,
    ! [SV478: $i] :
      ( ( ~ ! [SY809: $i] :
              ( ~ ( subset @ SY809 @ ( sK2_B @ SV478 ) )
              | ( are_equipotent @ SY809 @ ( sK2_B @ SV478 ) )
              | ( in @ SY809 @ ( sK2_B @ SV478 ) ) )
        | ~ ~ ( ~ ! [SY810: $i] :
                    ( ~ ( ~ ! [SY811: $i] :
                              ( ~ ( subset @ SY811 @ SY810 )
                              | ( in @ SY811 @ ( sK3_SY300 @ SY810 @ SV478 ) ) )
                        | ~ ( in @ ( sK3_SY300 @ SY810 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
                    | ~ ( in @ SY810 @ ( sK2_B @ SV478 ) ) )
              | ~ ~ ( ~ ! [SY812: $i,SY813: $i] :
                          ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
                          | ~ ( subset @ SY813 @ SY812 )
                          | ( in @ SY813 @ ( sK2_B @ SV478 ) ) )
                    | ~ ( in @ SV478 @ ( sK2_B @ SV478 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2437]) ).

thf(2555,plain,
    ! [SV479: $i] :
      ( ( ~ ! [SY814: $i] :
              ( ~ ( subset @ SV479 @ SY814 )
              | ! [SY815: $i] : ( subset @ ( cartesian_product2 @ SV479 @ SY815 ) @ ( cartesian_product2 @ SY814 @ SY815 ) ) )
        | ~ ! [SY816: $i] :
              ( ~ ( subset @ SV479 @ SY816 )
              | ! [SY817: $i] : ( subset @ ( cartesian_product2 @ SY817 @ SV479 ) @ ( cartesian_product2 @ SY817 @ SY816 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2438]) ).

thf(2556,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2439]) ).

thf(2557,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2439]) ).

thf(2558,plain,
    ! [SV543: $i,SV480: $i] :
      ( ( ~ ( ~ ! [SY925: $i] :
                  ( ! [SY926: $i] :
                      ( ( ordered_pair @ SV480 @ SV543 )
                     != ( ordered_pair @ SY925 @ SY926 ) )
                  | ( SV480 = SY925 ) )
            | ~ ! [SY927: $i,SY928: $i] :
                  ( ( ( ordered_pair @ SV480 @ SV543 )
                   != ( ordered_pair @ SY927 @ SY928 ) )
                  | ( SV543 = SY928 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2440]) ).

thf(2559,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2441]) ).

thf(2560,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2441]) ).

thf(2561,plain,
    ! [SV481: $i] :
      ( ( ( ~ ( relation @ SV481 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY823: $i] :
                    ( ~ ( relation @ SY823 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                            | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                            | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) ) )
                    | ( SY823
                      = ( relation_inverse @ SV481 ) ) )
              | ~ ! [SY824: $i] :
                    ( ~ ( relation @ SY824 )
                    | ( SY824
                     != ( relation_inverse @ SV481 ) )
                    | ~ ( ~ ! [SY825: $i,SY826: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY825 @ SY826 ) @ SY824 )
                              | ( in @ ( ordered_pair @ SY826 @ SY825 ) @ SV481 ) )
                        | ~ ! [SY827: $i,SY828: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY828 @ SY827 ) @ SV481 )
                              | ( in @ ( ordered_pair @ SY827 @ SY828 ) @ SY824 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2442]) ).

thf(2562,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ~ ( ~ ! [SY929: $i,SY930: $i] :
                  ( ~ ( in @ SV482 @ SY929 )
                  | ~ ( in @ SV544 @ SY930 )
                  | ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY929 @ SY930 ) ) )
            | ~ ~ ( ~ ! [SY931: $i] :
                        ( ! [SY932: $i] :
                            ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY931 @ SY932 ) )
                        | ( in @ SV482 @ SY931 ) )
                  | ~ ! [SY933: $i,SY934: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY933 @ SY934 ) )
                        | ( in @ SV544 @ SY934 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2443]) ).

thf(2563,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2444]) ).

thf(2564,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2444]) ).

thf(2565,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2445]) ).

thf(2566,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX0 @ SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2445]) ).

thf(2567,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2446]) ).

thf(2568,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2446]) ).

thf(2569,plain,
    ! [SV483: $i,SV545: $i] :
      ( ( ~ ( ~ ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV483 )
            | ~ ~ ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV545 ) )
        | ( element @ SV483 @ ( powerset @ SV545 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2447]) ).

thf(2570,plain,
    ! [SV484: $i] :
      ( ( ( ~ ( relation @ SV484 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY837: $i] :
                    ( ~ ( relation @ SY837 )
                    | ~ ( subset @ SV484 @ SY837 )
                    | ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SY837 ) ) )
              | ~ ! [SY838: $i] :
                    ( ~ ( relation @ SY838 )
                    | ~ ( subset @ SV484 @ SY838 )
                    | ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SY838 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2448]) ).

thf(2571,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2449]) ).

thf(2572,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2449]) ).

thf(2573,plain,
    ! [SV485: $i] :
      ( ( ~ ! [SY839: $i,SY840: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                            | ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SV485 ) )
                        | ~ ( ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                            | ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY839 ) ) )
                  | ~ ( ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                      | ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SV485 )
                      | ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY839 ) ) )
              | ( SY840
                = ( set_union2 @ SV485 @ SY839 ) ) )
        | ~ ! [SY841: $i,SY842: $i] :
              ( ( SY842
               != ( set_union2 @ SV485 @ SY841 ) )
              | ~ ( ~ ! [SY843: $i] :
                        ( ~ ( in @ SY843 @ SY842 )
                        | ( in @ SY843 @ SV485 )
                        | ( in @ SY843 @ SY841 ) )
                  | ~ ~ ( ~ ! [SY844: $i] :
                              ( ~ ( in @ SY844 @ SV485 )
                              | ( in @ SY844 @ SY842 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY841 )
                              | ( in @ SX3 @ SY842 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2450]) ).

thf(2574,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2451]) ).

thf(2575,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2451]) ).

thf(2576,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                                | ( in @ SX2 @ SX1 ) )
                          | ~ ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX1 )
                                | ! [SX3: $i] :
                                    ( ~ ( in @ SX3 @ SX0 )
                                    | ( in @ SX2 @ SX3 ) ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2452]) ).

thf(2577,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ( SX1 = empty_set ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1 != empty_set )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2452]) ).

thf(2578,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY312 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_SY312 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2453]) ).

thf(2579,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( union @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ! [SX3: $i] :
                          ( ~ ( in @ SX2 @ SX3 )
                          | ~ ( in @ SX3 @ SX0 ) )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ~ ( ~ ( in @ SX2 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2453]) ).

thf(2580,plain,
    ! [SV486: $i] :
      ( ( ~ ! [SY846: $i,SY847: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SV486 )
                      | ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY846 )
                      | ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SV486 )
                            | ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) )
                        | ~ ( ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY846 )
                            | ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) ) ) )
              | ( SY847
                = ( set_intersection2 @ SV486 @ SY846 ) ) )
        | ~ ! [SY848: $i,SY849: $i] :
              ( ( SY849
               != ( set_intersection2 @ SV486 @ SY848 ) )
              | ~ ( ~ ! [SY850: $i] :
                        ( ~ ( in @ SY850 @ SV486 )
                        | ~ ( in @ SY850 @ SY848 )
                        | ( in @ SY850 @ SY849 ) )
                  | ~ ~ ( ~ ! [SY851: $i] :
                              ( ~ ( in @ SY851 @ SY849 )
                              | ( in @ SY851 @ SV486 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY849 )
                              | ( in @ SX3 @ SY848 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2454]) ).

thf(2581,plain,
    ( ( ~ ( empty @ empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2455]) ).

thf(2582,plain,
    ( ( ~ ( relation @ empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2455]) ).

thf(2583,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( empty @ ( relation_dom @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2456]) ).

thf(2584,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( relation @ ( relation_dom @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2456]) ).

thf(2585,plain,
    ! [SV487: $i] :
      ( ( ~ ! [SY853: $i] :
              ( ~ ( subset @ SY853 @ ( sK32_B @ SV487 ) )
              | ( are_equipotent @ SY853 @ ( sK32_B @ SV487 ) )
              | ( in @ SY853 @ ( sK32_B @ SV487 ) ) )
        | ~ ~ ( ~ ! [SY854: $i] :
                    ( ~ ( in @ SY854 @ ( sK32_B @ SV487 ) )
                    | ( in @ ( powerset @ SY854 ) @ ( sK32_B @ SV487 ) ) )
              | ~ ~ ( ~ ! [SY855: $i,SY856: $i] :
                          ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
                          | ~ ( subset @ SY856 @ SY855 )
                          | ( in @ SY856 @ ( sK32_B @ SV487 ) ) )
                    | ~ ( in @ SV487 @ ( sK32_B @ SV487 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2457]) ).

thf(2586,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( empty @ ( relation_rng @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2458]) ).

thf(2587,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ( relation @ ( relation_rng @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2458]) ).

thf(2588,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2459]) ).

thf(2589,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( powerset @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( subset @ SX2 @ SX0 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( subset @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2459]) ).

thf(2590,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2460]) ).

thf(2591,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2460]) ).

thf(2592,plain,
    ( ( ( ( relation_rng @ sK1_A )
       != empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2461]) ).

thf(2593,plain,
    ( ( ~ ( ( ( relation_dom @ sK1_A )
           != empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2461]) ).

thf(2594,plain,
    ! [SV488: $i] :
      ( ( ( ~ ( relation @ SV488 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY857: $i] :
                    ( ~ ( ~ ( ! [SY858: $i] :
                                ~ ( in @ ( ordered_pair @ SY858 @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                            | ~ ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY857 @ SV488 ) @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                            | ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) ) )
                    | ( SY857
                      = ( relation_rng @ SV488 ) ) )
              | ~ ! [SY859: $i] :
                    ( ( SY859
                     != ( relation_rng @ SV488 ) )
                    | ~ ( ~ ! [SY860: $i] :
                              ( ! [SY861: $i] :
                                  ~ ( in @ ( ordered_pair @ SY861 @ SY860 ) @ SV488 )
                              | ( in @ SY860 @ SY859 ) )
                        | ~ ! [SY862: $i] :
                              ( ~ ( in @ SY862 @ SY859 )
                              | ( in @ ( ordered_pair @ ( sK36_D @ SY862 @ SY859 @ SV488 ) @ SY862 ) @ SV488 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2462]) ).

thf(2595,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( element @ SX1 @ SX0 )
                      | ( in @ SX1 @ SX0 ) ) )
            | ~ ! [SX0: $i] :
                  ( ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( in @ SX1 @ SX0 )
                      | ( element @ SX1 @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2463]) ).

thf(2596,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ~ ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( element @ SX1 @ SX0 )
                      | ( empty @ SX1 ) ) )
            | ~ ! [SX0: $i] :
                  ( ~ ( empty @ SX0 )
                  | ! [SX1: $i] :
                      ( ~ ( empty @ SX1 )
                      | ( element @ SX1 @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2463]) ).

thf(2597,plain,
    ! [SV489: $i] :
      ( ( ~ ( element @ ( sK6_B @ SV489 ) @ ( powerset @ SV489 ) )
        | ~ ( empty @ ( sK6_B @ SV489 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2464]) ).

thf(2598,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2465]) ).

thf(2599,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2465]) ).

thf(2600,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2466]) ).

thf(2601,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2466]) ).

thf(2602,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK42_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2467]) ).

thf(2603,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2467]) ).

thf(2604,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
             != empty_set )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2468]) ).

thf(2605,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
             != empty_set )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2468]) ).

thf(2606,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
              = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2469]) ).

thf(2607,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
              = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2469]) ).

thf(2608,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2470]) ).

thf(2609,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2470]) ).

thf(2610,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
                | ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) )
            | ~ ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
                | ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) ) )
        | ( SV490 = SV546 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2471]) ).

thf(2611,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2472]) ).

thf(2612,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2472]) ).

thf(2613,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK48_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK48_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2473]) ).

thf(2614,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK46_C @ SX1 @ SX0 ) @ ( sK47_SY329 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2473]) ).

thf(2615,plain,
    ! [SV491: $i] :
      ( ( ~ ! [SY864: $i,SY865: $i] :
              ( ~ ( in @ SV491 @ SY865 )
              | ~ ( in @ SY864 @ SY865 )
              | ( subset @ ( unordered_pair @ SV491 @ SY864 ) @ SY865 ) )
        | ~ ~ ( ~ ! [SY866: $i,SY867: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV491 @ SY866 ) @ SY867 )
                    | ( in @ SV491 @ SY867 ) )
              | ~ ! [SY868: $i,SY869: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV491 @ SY868 ) @ SY869 )
                    | ( in @ SY868 @ SY869 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2474]) ).

thf(2616,plain,
    ! [SV492: $i] :
      ( ( ~ ! [SY870: $i,SY871: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                            | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                             != SV492 ) )
                        | ~ ( ~ ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                            | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                             != SY870 ) ) )
                  | ~ ( ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                      | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                        = SV492 )
                      | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                        = SY870 ) ) )
              | ( SY871
                = ( unordered_pair @ SV492 @ SY870 ) ) )
        | ~ ! [SY872: $i,SY873: $i] :
              ( ( SY873
               != ( unordered_pair @ SV492 @ SY872 ) )
              | ~ ( ~ ! [SY874: $i] :
                        ( ~ ( in @ SY874 @ SY873 )
                        | ( SY874 = SV492 )
                        | ( SY874 = SY872 ) )
                  | ~ ~ ( ~ ! [SY875: $i] :
                              ( ( SY875 != SV492 )
                              | ( in @ SY875 @ SY873 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY872 )
                              | ( in @ SX3 @ SY873 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2475]) ).

thf(2617,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ~ ( ~ ! [SY935: $i,SY936: $i] :
                  ( ~ ( in @ SV493 @ SY935 )
                  | ~ ( in @ SV547 @ SY936 )
                  | ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY935 @ SY936 ) ) )
            | ~ ~ ( ~ ! [SY937: $i] :
                        ( ! [SY938: $i] :
                            ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY937 @ SY938 ) )
                        | ( in @ SV493 @ SY937 ) )
                  | ~ ! [SY939: $i,SY940: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY939 @ SY940 ) )
                        | ( in @ SV547 @ SY940 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2476]) ).

thf(2618,plain,
    ! [SV494: $i] :
      ( ( ~ ! [SY884: $i,SY885: $i] :
              ( ~ ( relation @ SY885 )
              | ~ ( in @ ( ordered_pair @ SV494 @ SY884 ) @ SY885 )
              | ( in @ SV494 @ ( relation_dom @ SY885 ) ) )
        | ~ ! [SY886: $i,SY887: $i] :
              ( ~ ( relation @ SY887 )
              | ~ ( in @ ( ordered_pair @ SV494 @ SY886 ) @ SY887 )
              | ( in @ SY886 @ ( relation_rng @ SY887 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2477]) ).

thf(2619,plain,
    ( ( ~ ( empty @ sK35_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2478]) ).

thf(2620,plain,
    ( ( ~ ( relation @ sK35_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2478]) ).

thf(2621,plain,
    ( ( ~ ~ ( empty @ sK34_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2479]) ).

thf(2622,plain,
    ( ( ~ ( relation @ sK34_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2479]) ).

thf(2623,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK30_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2480]) ).

thf(2624,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2480]) ).

thf(2625,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK29_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK29_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2481]) ).

thf(2626,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( singleton @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ( SX2 != SX0 )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( SX2 = SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2481]) ).

thf(2627,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2482]) ).

thf(2628,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( SX0 != SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( subset @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2482]) ).

thf(2629,plain,
    ! [SV495: $i] :
      ( ( ~ ! [SY888: $i,SY889: $i] :
              ( ~ ( ~ ( ! [SY890: $i,SY891: $i] :
                          ( ~ ( in @ SY890 @ SV495 )
                          | ~ ( in @ SY891 @ SY888 )
                          | ( ( sK23_D @ SY889 @ SY888 @ SV495 )
                           != ( ordered_pair @ SY890 @ SY891 ) ) )
                      | ~ ( in @ ( sK23_D @ SY889 @ SY888 @ SV495 ) @ SY889 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY889 @ SY888 @ SV495 ) @ SV495 )
                                | ~ ( in @ ( sK25_SY318 @ SY889 @ SY888 @ SV495 ) @ SY888 ) )
                          | ( ( sK23_D @ SY889 @ SY888 @ SV495 )
                           != ( ordered_pair @ ( sK24_SY316 @ SY889 @ SY888 @ SV495 ) @ ( sK25_SY318 @ SY889 @ SY888 @ SV495 ) ) ) )
                      | ( in @ ( sK23_D @ SY889 @ SY888 @ SV495 ) @ SY889 ) ) )
              | ( SY889
                = ( cartesian_product2 @ SV495 @ SY888 ) ) )
        | ~ ! [SY892: $i,SY893: $i] :
              ( ( SY893
               != ( cartesian_product2 @ SV495 @ SY892 ) )
              | ~ ( ~ ! [SY894: $i] :
                        ( ! [SY895: $i,SY896: $i] :
                            ( ~ ( in @ SY895 @ SV495 )
                            | ~ ( in @ SY896 @ SY892 )
                            | ( SY894
                             != ( ordered_pair @ SY895 @ SY896 ) ) )
                        | ( in @ SY894 @ SY893 ) )
                  | ~ ! [SY897: $i] :
                        ( ~ ( in @ SY897 @ SY893 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY897 @ SY893 @ SY892 @ SV495 ) @ SV495 )
                                  | ~ ( in @ ( sK22_SY313 @ SY897 @ SY893 @ SY892 @ SV495 ) @ SY892 ) )
                            | ( SY897
                             != ( ordered_pair @ ( sK21_E @ SY897 @ SY893 @ SY892 @ SV495 ) @ ( sK22_SY313 @ SY897 @ SY893 @ SY892 @ SV495 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2483]) ).

thf(2630,plain,
    ! [SV496: $i] :
      ( ( ( empty @ SV496 )
        = $true )
      | ( ( ~ ( ~ ( element @ ( sK8_B @ SV496 ) @ ( powerset @ SV496 ) )
              | ~ ~ ( empty @ ( sK8_B @ SV496 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2484]) ).

thf(2631,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2485]) ).

thf(2632,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2485]) ).

thf(2633,plain,
    ! [SV497: $i] :
      ( ( ~ ! [SY898: $i,SY899: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SV497 )
                      | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY898 )
                      | ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SV497 )
                            | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) )
                        | ~ ( ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY898 )
                            | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) ) ) )
              | ( SY899
                = ( set_difference @ SV497 @ SY898 ) ) )
        | ~ ! [SY900: $i,SY901: $i] :
              ( ( SY901
               != ( set_difference @ SV497 @ SY900 ) )
              | ~ ( ~ ! [SY902: $i] :
                        ( ~ ( in @ SY902 @ SV497 )
                        | ( in @ SY902 @ SY900 )
                        | ( in @ SY902 @ SY901 ) )
                  | ~ ~ ( ~ ! [SY903: $i] :
                              ( ~ ( in @ SY903 @ SY901 )
                              | ( in @ SY903 @ SV497 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY901 )
                              | ~ ( in @ SX3 @ SY900 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2486]) ).

thf(2634,plain,
    ! [SV498: $i] :
      ( ( ( ~ ( relation @ SV498 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY905: $i] :
                    ( ~ ( ~ ( ! [SY906: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ SY906 ) @ SV498 )
                            | ~ ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ ( sK41_SY326 @ SY905 @ SV498 ) ) @ SV498 )
                            | ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) ) )
                    | ( SY905
                      = ( relation_dom @ SV498 ) ) )
              | ~ ! [SY907: $i] :
                    ( ( SY907
                     != ( relation_dom @ SV498 ) )
                    | ~ ( ~ ! [SY908: $i] :
                              ( ! [SY909: $i] :
                                  ~ ( in @ ( ordered_pair @ SY908 @ SY909 ) @ SV498 )
                              | ( in @ SY908 @ SY907 ) )
                        | ~ ! [SY910: $i] :
                              ( ~ ( in @ SY910 @ SY907 )
                              | ( in @ ( ordered_pair @ SY910 @ ( sK39_D @ SY910 @ SY907 @ SV498 ) ) @ SV498 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2487]) ).

thf(2635,plain,
    ( ( ( ( relation_dom @ empty_set )
       != empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2488]) ).

thf(2636,plain,
    ( ( ( ( relation_rng @ empty_set )
       != empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2488]) ).

thf(2637,plain,
    ! [SV404: $i] :
      ( ( ( relation @ SV404 )
        = $false )
      | ( ( subset @ SV404 @ ( cartesian_product2 @ ( relation_dom @ SV404 ) @ ( relation_rng @ SV404 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2490]) ).

thf(2638,plain,
    ! [SV406: $i] :
      ( ( ( subset @ SV406 @ empty_set )
        = $false )
      | ( ( SV406 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2491]) ).

thf(2639,plain,
    ! [SV407: $i] :
      ( ( ( relation @ SV407 )
        = $false )
      | ( ( ! [SY732: $i] :
              ( ~ ( relation @ SY732 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV407 @ SY732 ) ) @ ( relation_dom @ SV407 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2492]) ).

thf(2640,plain,
    ! [SV408: $i] :
      ( ( ( relation @ SV408 )
        = $false )
      | ( ( ! [SY733: $i] :
              ( ~ ( relation @ SY733 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV408 @ SY733 ) ) @ ( relation_rng @ SY733 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2493]) ).

thf(2641,plain,
    ! [SV409: $i] :
      ( ( ( relation @ SV409 )
        = $false )
      | ( ( ! [SY734: $i] :
              ( ~ ( relation @ SY734 )
              | ~ ( subset @ ( relation_rng @ SV409 ) @ ( relation_dom @ SY734 ) )
              | ( ( relation_dom @ ( relation_composition @ SV409 @ SY734 ) )
                = ( relation_dom @ SV409 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2494]) ).

thf(2642,plain,
    ! [SV410: $i] :
      ( ( ( relation @ SV410 )
        = $false )
      | ( ( ! [SY735: $i] :
              ( ~ ( relation @ SY735 )
              | ~ ( subset @ ( relation_dom @ SV410 ) @ ( relation_rng @ SY735 ) )
              | ( ( relation_rng @ ( relation_composition @ SY735 @ SV410 ) )
                = ( relation_rng @ SV410 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2495]) ).

thf(2643,plain,
    ! [SV411: $i] :
      ( ( ( relation @ SV411 )
        = $false )
      | ( ( ( in @ ( ordered_pair @ ( sK49_B @ SV411 ) @ ( sK50_SY332 @ SV411 ) ) @ SV411 )
          | ( SV411 = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2496]) ).

thf(2644,plain,
    ! [SV412: $i] :
      ( ( ( empty @ SV412 )
        = $false )
      | ( ( relation @ SV412 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2497]) ).

thf(2645,plain,
    ! [SV413: $i] :
      ( ( ( relation @ SV413 )
        = $false )
      | ( ( ( relation_field @ SV413 )
          = ( set_union2 @ ( relation_dom @ SV413 ) @ ( relation_rng @ SV413 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2498]) ).

thf(2646,plain,
    ! [SV414: $i] :
      ( ( ( relation @ SV414 )
        = $false )
      | ( ( relation @ ( relation_inverse @ SV414 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2499]) ).

thf(2647,plain,
    ! [SV499: $i,SV415: $i] :
      ( ( ( ~ ( relation @ SV415 )
          | ~ ( relation @ SV499 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV415 @ SV499 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2500]) ).

thf(2648,plain,
    ! [SV500: $i,SV416: $i] :
      ( ( ( ~ ( relation @ SV416 )
          | ~ ( relation @ SV500 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV416 @ SV500 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2501]) ).

thf(2649,plain,
    ! [SV417: $i] :
      ( ( ( empty @ SV417 )
        = $true )
      | ( ( ~ ( relation @ SV417 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV417 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2502]) ).

thf(2650,plain,
    ! [SV418: $i] :
      ( ( ( empty @ SV418 )
        = $true )
      | ( ( ~ ( relation @ SV418 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV418 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2503]) ).

thf(2651,plain,
    ! [SV419: $i] :
      ( ( ( relation @ SV419 )
        = $false )
      | ( ( ( relation_inverse @ ( relation_inverse @ SV419 ) )
          = SV419 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2504]) ).

thf(2652,plain,
    ! [SV424: $i] :
      ( ( ( empty @ SV424 )
        = $false )
      | ( ( SV424 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2505]) ).

thf(2653,plain,
    ! [SV501: $i,SV425: $i] :
      ( ( ( ~ ( in @ SV425 @ SV501 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV425 ) @ SV501 )
          = SV501 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2506]) ).

thf(2654,plain,
    ! [SV502: $i,SV426: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV426 ) @ SV502 ) )
        = $true )
      | ( ( ~ ( in @ SV426 @ SV502 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2507]) ).

thf(2655,plain,
    ! [SV503: $i,SV427: $i] :
      ( ( ( in @ SV427 @ SV503 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV427 ) @ SV503 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2508]) ).

thf(2656,plain,
    ! [SV428: $i,SV504: $i] :
      ( ( ( ~ ( element @ SV504 @ ( powerset @ SV428 ) ) )
        = $true )
      | ( ( ! [SY911: $i] :
              ( ~ ( in @ SY911 @ SV504 )
              | ( in @ SY911 @ SV428 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2509]) ).

thf(2657,plain,
    ! [SV505: $i,SV429: $i] :
      ( ( ( ~ ( subset @ SV429 @ SV505 ) )
        = $true )
      | ( ( ! [SY912: $i] :
              ( ( in @ SY912 @ SV429 )
              | ( subset @ SV429 @ ( set_difference @ SV505 @ ( singleton @ SY912 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2510]) ).

thf(2658,plain,
    ! [SV506: $i,SV430: $i] :
      ( ( ( ~ ( in @ SV430 @ SV506 ) )
        = $true )
      | ( ( subset @ SV430 @ ( union @ SV506 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2511]) ).

thf(2659,plain,
    ! [SV548: $i,SV507: $i,SV431: $i] :
      ( ( ! [SY941: $i] :
            ( ~ ( subset @ SV431 @ SV507 )
            | ~ ( subset @ SV548 @ SY941 )
            | ( subset @ ( cartesian_product2 @ SV431 @ SV548 ) @ ( cartesian_product2 @ SV507 @ SY941 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2512]) ).

thf(2660,plain,
    ! [SV508: $i,SV432: $i] :
      ( ( ( ~ ( subset @ SV432 @ SV508 ) )
        = $true )
      | ( ( ( set_union2 @ SV432 @ SV508 )
          = SV508 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2513]) ).

thf(2661,plain,
    ! [SV549: $i,SV510: $i,SV434: $i] :
      ( ( ~ ( subset @ SV434 @ SV510 )
        | ~ ( subset @ SV434 @ SV549 )
        | ( subset @ SV434 @ ( set_intersection2 @ SV510 @ SV549 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2515]) ).

thf(2662,plain,
    ! [SV550: $i,SV511: $i,SV435: $i] :
      ( ( ~ ( subset @ SV435 @ SV511 )
        | ~ ( subset @ SV511 @ SV550 )
        | ( subset @ SV435 @ SV550 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2516]) ).

thf(2663,plain,
    ! [SV512: $i,SV436: $i] :
      ( ( ( ~ ( subset @ SV436 @ SV512 ) )
        = $true )
      | ( ( ! [SY917: $i] : ( subset @ ( set_intersection2 @ SV436 @ SY917 ) @ ( set_intersection2 @ SV512 @ SY917 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2517]) ).

thf(2664,plain,
    ! [SV513: $i,SV437: $i] :
      ( ( ( ~ ( subset @ SV437 @ SV513 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV437 @ SV513 )
          = SV437 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2518]) ).

thf(2665,plain,
    ! [SV514: $i,SV438: $i] :
      ( ( ( ~ ( subset @ SV438 @ SV514 ) )
        = $true )
      | ( ( ! [SY918: $i] : ( subset @ ( set_difference @ SV438 @ SY918 ) @ ( set_difference @ SV514 @ SY918 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2519]) ).

thf(2666,plain,
    ! [SV518: $i,SV442: $i] :
      ( ( ( ~ ( subset @ SV442 @ SV518 ) )
        = $true )
      | ( ( SV518
          = ( set_union2 @ SV442 @ ( set_difference @ SV518 @ SV442 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2523]) ).

thf(2667,plain,
    ! [SV519: $i,SV443: $i] :
      ( ( ( ~ ( in @ SV443 @ SV519 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV443 ) @ SV519 )
          = SV519 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2524]) ).

thf(2668,plain,
    ! [SV445: $i,SV521: $i] :
      ( ( ( ~ ( proper_subset @ SV521 @ SV445 ) )
        = $true )
      | ( ( ~ ( subset @ SV445 @ SV521 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2526]) ).

thf(2669,plain,
    ! [SV446: $i,SV551: $i,SV522: $i] :
      ( ( ~ ( disjoint @ SV522 @ SV551 )
        | ~ ( subset @ SV446 @ SV522 )
        | ( disjoint @ SV446 @ SV551 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2527]) ).

thf(2670,plain,
    ! [SV523: $i,SV448: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV448 ) @ ( singleton @ SV523 ) ) )
        = $true )
      | ( ( SV448 = SV523 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2528]) ).

thf(2671,plain,
    ! [SV552: $i,SV525: $i,SV450: $i] :
      ( ( ~ ( subset @ SV450 @ SV525 )
        | ~ ( subset @ SV552 @ SV525 )
        | ( subset @ ( set_union2 @ SV450 @ SV552 ) @ SV525 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2530]) ).

thf(2672,plain,
    ! [SV526: $i,SV451: $i] :
      ( ( ( ! [SY921: $i] :
              ( ( singleton @ SV451 )
             != ( unordered_pair @ SV526 @ SY921 ) ) )
        = $true )
      | ( ( SV451 = SV526 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2531]) ).

thf(2673,plain,
    ! [SV527: $i,SV452: $i] :
      ( ( ( ~ ( in @ SV452 @ SV527 ) )
        = $true )
      | ( ( subset @ SV452 @ ( union @ SV527 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2532]) ).

thf(2674,plain,
    ! [SV553: $i,SV528: $i,SV454: $i] :
      ( ( ( ( singleton @ SV454 )
         != ( unordered_pair @ SV528 @ SV553 ) )
        | ( SV528 = SV553 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2533]) ).

thf(2675,plain,
    ! [SV529: $i,SV455: $i] :
      ( ( ( ~ ( in @ SV455 @ SV529 ) )
        = $true )
      | ( ( ~ ( in @ SV529 @ SV455 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2534]) ).

thf(2676,plain,
    ! [SV533: $i,SV460: $i] :
      ( ( empty @ ( ordered_pair @ SV460 @ SV533 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2539]) ).

thf(2677,plain,
    ! [SV554: $i,SV462: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV462 @ SV554 ) ) )
        = $true )
      | ( ( empty @ SV462 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2541]) ).

thf(2678,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( empty @ ( unordered_pair @ SV463 @ SV534 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2542]) ).

thf(2679,plain,
    ! [SV464: $i,SV555: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV555 @ SV464 ) ) )
        = $true )
      | ( ( empty @ SV464 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2543]) ).

thf(2680,plain,
    ! [SV535: $i,SV465: $i] :
      ( ( ( ( empty @ SV465 )
          | ( empty @ SV535 ) )
        = $true )
      | ( ( ~ ( empty @ ( cartesian_product2 @ SV465 @ SV535 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2544]) ).

thf(2681,plain,
    ! [SV536: $i,SV469: $i] :
      ( ( ( ~ ( disjoint @ SV469 @ SV536 ) )
        = $true )
      | ( ( disjoint @ SV536 @ SV469 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2545]) ).

thf(2682,plain,
    ! [SV537: $i,SV470: $i] :
      ( ( ( ~ ( in @ SV470 @ SV537 ) )
        = $true )
      | ( ( element @ SV470 @ SV537 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2546]) ).

thf(2683,plain,
    ! [SV538: $i,SV471: $i] :
      ( ( ( ~ ( element @ SV471 @ SV538 ) )
        = $true )
      | ( ( ( empty @ SV538 )
          | ( in @ SV471 @ SV538 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2547]) ).

thf(2684,plain,
    ! [SV472: $i,SV556: $i,SV539: $i] :
      ( ( ~ ( element @ SV539 @ ( powerset @ SV556 ) )
        | ~ ( in @ SV472 @ SV539 )
        | ( element @ SV472 @ SV556 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2548]) ).

thf(2685,plain,
    ! [SV473: $i,SV557: $i,SV540: $i] :
      ( ( ~ ( element @ SV540 @ ( powerset @ SV557 ) )
        | ~ ( in @ SV473 @ SV540 )
        | ~ ( empty @ SV557 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2549]) ).

thf(2686,plain,
    ! [SV474: $i,SV541: $i] :
      ( ( ( ~ ( empty @ SV541 ) )
        = $true )
      | ( ( ~ ( in @ SV474 @ SV541 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2550]) ).

thf(2687,plain,
    ! [SV542: $i,SV475: $i] :
      ( ( ( ( SV475 = SV542 )
          | ~ ( empty @ SV475 ) )
        = $true )
      | ( ( ~ ( empty @ SV542 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2551]) ).

thf(2688,plain,
    ! [SV476: $i] :
      ( ( ~ ! [SY796: $i,SY797: $i] :
              ( ~ ( relation @ SY797 )
              | ~ ( in @ ( ordered_pair @ SV476 @ SY796 ) @ SY797 )
              | ( in @ SV476 @ ( relation_field @ SY797 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2552]) ).

thf(2689,plain,
    ! [SV476: $i] :
      ( ( ~ ! [SY798: $i,SY799: $i] :
              ( ~ ( relation @ SY799 )
              | ~ ( in @ ( ordered_pair @ SV476 @ SY798 ) @ SY799 )
              | ( in @ SY798 @ ( relation_field @ SY799 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2552]) ).

thf(2690,plain,
    ! [SV477: $i] :
      ( ( ( relation @ SV477 )
        = $false )
      | ( ( ! [SY800: $i] :
              ( ~ ( relation @ SY800 )
              | ~ ( ~ ! [SY801: $i] :
                        ( ~ ( relation @ SY801 )
                        | ~ ( ~ ( ! [SY802: $i] :
                                    ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ SY802 ) @ SV477 )
                                    | ~ ( in @ ( ordered_pair @ SY802 @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY800 ) )
                                | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY801 ) )
                            | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ ( sK12_SY309 @ SY801 @ SY800 @ SV477 ) ) @ SV477 )
                                    | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY801 @ SY800 @ SV477 ) @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY800 ) )
                                | ( in @ ( ordered_pair @ ( sK10_D @ SY801 @ SY800 @ SV477 ) @ ( sK11_SY305 @ SY801 @ SY800 @ SV477 ) ) @ SY801 ) ) )
                        | ( SY801
                          = ( relation_composition @ SV477 @ SY800 ) ) )
                  | ~ ! [SY803: $i] :
                        ( ~ ( relation @ SY803 )
                        | ( SY803
                         != ( relation_composition @ SV477 @ SY800 ) )
                        | ~ ( ~ ! [SY804: $i,SY805: $i] :
                                  ( ! [SY806: $i] :
                                      ( ~ ( in @ ( ordered_pair @ SY804 @ SY806 ) @ SV477 )
                                      | ~ ( in @ ( ordered_pair @ SY806 @ SY805 ) @ SY800 ) )
                                  | ( in @ ( ordered_pair @ SY804 @ SY805 ) @ SY803 ) )
                            | ~ ! [SY807: $i,SY808: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY807 @ SY808 ) @ SY803 )
                                  | ~ ( ~ ( in @ ( ordered_pair @ SY807 @ ( sK9_F @ SY808 @ SY807 @ SY803 @ SY800 @ SV477 ) ) @ SV477 )
                                      | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY808 @ SY807 @ SY803 @ SY800 @ SV477 ) @ SY808 ) @ SY800 ) ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2553]) ).

thf(2691,plain,
    ! [SV478: $i] :
      ( ( ~ ! [SY809: $i] :
              ( ~ ( subset @ SY809 @ ( sK2_B @ SV478 ) )
              | ( are_equipotent @ SY809 @ ( sK2_B @ SV478 ) )
              | ( in @ SY809 @ ( sK2_B @ SV478 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2554]) ).

thf(2692,plain,
    ! [SV478: $i] :
      ( ( ~ ~ ( ~ ! [SY810: $i] :
                    ( ~ ( ~ ! [SY811: $i] :
                              ( ~ ( subset @ SY811 @ SY810 )
                              | ( in @ SY811 @ ( sK3_SY300 @ SY810 @ SV478 ) ) )
                        | ~ ( in @ ( sK3_SY300 @ SY810 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
                    | ~ ( in @ SY810 @ ( sK2_B @ SV478 ) ) )
              | ~ ~ ( ~ ! [SY812: $i,SY813: $i] :
                          ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
                          | ~ ( subset @ SY813 @ SY812 )
                          | ( in @ SY813 @ ( sK2_B @ SV478 ) ) )
                    | ~ ( in @ SV478 @ ( sK2_B @ SV478 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2554]) ).

thf(2693,plain,
    ! [SV479: $i] :
      ( ( ~ ! [SY814: $i] :
              ( ~ ( subset @ SV479 @ SY814 )
              | ! [SY815: $i] : ( subset @ ( cartesian_product2 @ SV479 @ SY815 ) @ ( cartesian_product2 @ SY814 @ SY815 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2555]) ).

thf(2694,plain,
    ! [SV479: $i] :
      ( ( ~ ! [SY816: $i] :
              ( ~ ( subset @ SV479 @ SY816 )
              | ! [SY817: $i] : ( subset @ ( cartesian_product2 @ SY817 @ SV479 ) @ ( cartesian_product2 @ SY817 @ SY816 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2555]) ).

thf(2695,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2556]) ).

thf(2696,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0
                 != ( singleton @ SX1 ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2557]) ).

thf(2697,plain,
    ! [SV543: $i,SV480: $i] :
      ( ( ~ ! [SY925: $i] :
              ( ! [SY926: $i] :
                  ( ( ordered_pair @ SV480 @ SV543 )
                 != ( ordered_pair @ SY925 @ SY926 ) )
              | ( SV480 = SY925 ) )
        | ~ ! [SY927: $i,SY928: $i] :
              ( ( ( ordered_pair @ SV480 @ SV543 )
               != ( ordered_pair @ SY927 @ SY928 ) )
              | ( SV543 = SY928 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2558]) ).

thf(2698,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2559]) ).

thf(2699,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2560]) ).

thf(2700,plain,
    ! [SV481: $i] :
      ( ( ( relation @ SV481 )
        = $false )
      | ( ( ~ ( ~ ! [SY823: $i] :
                    ( ~ ( relation @ SY823 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                            | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                            | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) ) )
                    | ( SY823
                      = ( relation_inverse @ SV481 ) ) )
              | ~ ! [SY824: $i] :
                    ( ~ ( relation @ SY824 )
                    | ( SY824
                     != ( relation_inverse @ SV481 ) )
                    | ~ ( ~ ! [SY825: $i,SY826: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY825 @ SY826 ) @ SY824 )
                              | ( in @ ( ordered_pair @ SY826 @ SY825 ) @ SV481 ) )
                        | ~ ! [SY827: $i,SY828: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY828 @ SY827 ) @ SV481 )
                              | ( in @ ( ordered_pair @ SY827 @ SY828 ) @ SY824 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2561]) ).

thf(2701,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ~ ! [SY929: $i,SY930: $i] :
              ( ~ ( in @ SV482 @ SY929 )
              | ~ ( in @ SV544 @ SY930 )
              | ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY929 @ SY930 ) ) )
        | ~ ~ ( ~ ! [SY931: $i] :
                    ( ! [SY932: $i] :
                        ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY931 @ SY932 ) )
                    | ( in @ SV482 @ SY931 ) )
              | ~ ! [SY933: $i,SY934: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY933 @ SY934 ) )
                    | ( in @ SV544 @ SY934 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2562]) ).

thf(2702,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2563]) ).

thf(2703,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2564]) ).

thf(2704,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2565]) ).

thf(2705,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0 != SX1 )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0 != SX1 )
                | ( subset @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2566]) ).

thf(2706,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2567]) ).

thf(2707,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2568]) ).

thf(2708,plain,
    ! [SV483: $i,SV545: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV483 )
              | ~ ~ ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV545 ) ) )
        = $true )
      | ( ( element @ SV483 @ ( powerset @ SV545 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2569]) ).

thf(2709,plain,
    ! [SV484: $i] :
      ( ( ( relation @ SV484 )
        = $false )
      | ( ( ~ ( ~ ! [SY837: $i] :
                    ( ~ ( relation @ SY837 )
                    | ~ ( subset @ SV484 @ SY837 )
                    | ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SY837 ) ) )
              | ~ ! [SY838: $i] :
                    ( ~ ( relation @ SY838 )
                    | ~ ( subset @ SV484 @ SY838 )
                    | ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SY838 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2570]) ).

thf(2710,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2571]) ).

thf(2711,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2572]) ).

thf(2712,plain,
    ! [SV485: $i] :
      ( ( ~ ! [SY839: $i,SY840: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                            | ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SV485 ) )
                        | ~ ( ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                            | ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY839 ) ) )
                  | ~ ( ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                      | ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SV485 )
                      | ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY839 ) ) )
              | ( SY840
                = ( set_union2 @ SV485 @ SY839 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2573]) ).

thf(2713,plain,
    ! [SV485: $i] :
      ( ( ~ ! [SY841: $i,SY842: $i] :
              ( ( SY842
               != ( set_union2 @ SV485 @ SY841 ) )
              | ~ ( ~ ! [SY843: $i] :
                        ( ~ ( in @ SY843 @ SY842 )
                        | ( in @ SY843 @ SV485 )
                        | ( in @ SY843 @ SY841 ) )
                  | ~ ~ ( ~ ! [SY844: $i] :
                              ( ~ ( in @ SY844 @ SV485 )
                              | ( in @ SY844 @ SY842 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY841 )
                              | ( in @ SX3 @ SY842 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2573]) ).

thf(2714,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2574]) ).

thf(2715,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2575]) ).

thf(2716,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                                | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX0 )
                                | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                            | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                              | ( in @ SX2 @ SX1 ) )
                        | ~ ! [SX2: $i] :
                              ( ~ ( in @ SX2 @ SX1 )
                              | ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX0 )
                                  | ( in @ SX2 @ SX3 ) ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2576]) ).

thf(2717,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ( SX1 = empty_set ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ( ( SX1 != empty_set )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2577]) ).

thf(2718,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ! [SX2: $i] :
                      ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX2 )
                      | ~ ( in @ SX2 @ SX0 ) )
                  | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ~ ( ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY312 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK18_SY312 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2578]) ).

thf(2719,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1
           != ( union @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ! [SX3: $i] :
                        ( ~ ( in @ SX2 @ SX3 )
                        | ~ ( in @ SX3 @ SX0 ) )
                    | ( in @ SX2 @ SX1 ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX1 )
                    | ~ ( ~ ( in @ SX2 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2579]) ).

thf(2720,plain,
    ! [SV486: $i] :
      ( ( ~ ! [SY846: $i,SY847: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SV486 )
                      | ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY846 )
                      | ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SV486 )
                            | ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) )
                        | ~ ( ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY846 )
                            | ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) ) ) )
              | ( SY847
                = ( set_intersection2 @ SV486 @ SY846 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2580]) ).

thf(2721,plain,
    ! [SV486: $i] :
      ( ( ~ ! [SY848: $i,SY849: $i] :
              ( ( SY849
               != ( set_intersection2 @ SV486 @ SY848 ) )
              | ~ ( ~ ! [SY850: $i] :
                        ( ~ ( in @ SY850 @ SV486 )
                        | ~ ( in @ SY850 @ SY848 )
                        | ( in @ SY850 @ SY849 ) )
                  | ~ ~ ( ~ ! [SY851: $i] :
                              ( ~ ( in @ SY851 @ SY849 )
                              | ( in @ SY851 @ SV486 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY849 )
                              | ( in @ SX3 @ SY848 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2580]) ).

thf(2722,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2581]) ).

thf(2723,plain,
    ( ( relation @ empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2582]) ).

thf(2724,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( empty @ ( relation_dom @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2583]) ).

thf(2725,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( relation @ ( relation_dom @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2584]) ).

thf(2726,plain,
    ! [SV487: $i] :
      ( ( ~ ! [SY853: $i] :
              ( ~ ( subset @ SY853 @ ( sK32_B @ SV487 ) )
              | ( are_equipotent @ SY853 @ ( sK32_B @ SV487 ) )
              | ( in @ SY853 @ ( sK32_B @ SV487 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2585]) ).

thf(2727,plain,
    ! [SV487: $i] :
      ( ( ~ ~ ( ~ ! [SY854: $i] :
                    ( ~ ( in @ SY854 @ ( sK32_B @ SV487 ) )
                    | ( in @ ( powerset @ SY854 ) @ ( sK32_B @ SV487 ) ) )
              | ~ ~ ( ~ ! [SY855: $i,SY856: $i] :
                          ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
                          | ~ ( subset @ SY856 @ SY855 )
                          | ( in @ SY856 @ ( sK32_B @ SV487 ) ) )
                    | ~ ( in @ SV487 @ ( sK32_B @ SV487 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2585]) ).

thf(2728,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( empty @ ( relation_rng @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2586]) ).

thf(2729,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ( relation @ ( relation_rng @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2587]) ).

thf(2730,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2588]) ).

thf(2731,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1
           != ( powerset @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX1 )
                    | ( subset @ SX2 @ SX0 ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( subset @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2589]) ).

thf(2732,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK31_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2590]) ).

thf(2733,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2591]) ).

thf(2734,plain,
    ( ( ( relation_rng @ sK1_A )
      = empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2592]) ).

thf(2735,plain,
    ( ( ( ( relation_dom @ sK1_A )
       != empty_set ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2593]) ).

thf(2736,plain,
    ! [SV488: $i] :
      ( ( ( relation @ SV488 )
        = $false )
      | ( ( ~ ( ~ ! [SY857: $i] :
                    ( ~ ( ~ ( ! [SY858: $i] :
                                ~ ( in @ ( ordered_pair @ SY858 @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                            | ~ ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY857 @ SV488 ) @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                            | ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) ) )
                    | ( SY857
                      = ( relation_rng @ SV488 ) ) )
              | ~ ! [SY859: $i] :
                    ( ( SY859
                     != ( relation_rng @ SV488 ) )
                    | ~ ( ~ ! [SY860: $i] :
                              ( ! [SY861: $i] :
                                  ~ ( in @ ( ordered_pair @ SY861 @ SY860 ) @ SV488 )
                              | ( in @ SY860 @ SY859 ) )
                        | ~ ! [SY862: $i] :
                              ( ~ ( in @ SY862 @ SY859 )
                              | ( in @ ( ordered_pair @ ( sK36_D @ SY862 @ SY859 @ SV488 ) @ SY862 ) @ SV488 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2594]) ).

thf(2737,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( empty @ SX0 )
                | ! [SX1: $i] :
                    ( ~ ( element @ SX1 @ SX0 )
                    | ( in @ SX1 @ SX0 ) ) )
          | ~ ! [SX0: $i] :
                ( ( empty @ SX0 )
                | ! [SX1: $i] :
                    ( ~ ( in @ SX1 @ SX0 )
                    | ( element @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2595]) ).

thf(2738,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ! [SX1: $i] :
                    ( ~ ( element @ SX1 @ SX0 )
                    | ( empty @ SX1 ) ) )
          | ~ ! [SX0: $i] :
                ( ~ ( empty @ SX0 )
                | ! [SX1: $i] :
                    ( ~ ( empty @ SX1 )
                    | ( element @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2596]) ).

thf(2739,plain,
    ! [SV489: $i] :
      ( ( ~ ( element @ ( sK6_B @ SV489 ) @ ( powerset @ SV489 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2597]) ).

thf(2740,plain,
    ! [SV489: $i] :
      ( ( ~ ( empty @ ( sK6_B @ SV489 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2597]) ).

thf(2741,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2598]) ).

thf(2742,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2599]) ).

thf(2743,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2600]) ).

thf(2744,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0
                 != ( singleton @ SX1 ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2601]) ).

thf(2745,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK42_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2602]) ).

thf(2746,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2603]) ).

thf(2747,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_dom @ SX0 )
           != empty_set )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2604]) ).

thf(2748,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_rng @ SX0 )
           != empty_set )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2605]) ).

thf(2749,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_rng @ SX0 )
            = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2606]) ).

thf(2750,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_dom @ SX0 )
            = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2607]) ).

thf(2751,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2608]) ).

thf(2752,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2609]) ).

thf(2753,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
                  | ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) )
              | ~ ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
                  | ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) ) ) )
        = $true )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2610]) ).

thf(2754,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2611]) ).

thf(2755,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2612]) ).

thf(2756,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                    ( ( sK48_B @ SX0 )
                   != ( ordered_pair @ SX1 @ SX2 ) )
              | ~ ( in @ ( sK48_B @ SX0 ) @ SX0 ) )
          | ( relation @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2613]) ).

thf(2757,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ( SX1
                = ( ordered_pair @ ( sK46_C @ SX1 @ SX0 ) @ ( sK47_SY329 @ SX1 @ SX0 ) ) )
              | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2614]) ).

thf(2758,plain,
    ! [SV491: $i] :
      ( ( ~ ! [SY864: $i,SY865: $i] :
              ( ~ ( in @ SV491 @ SY865 )
              | ~ ( in @ SY864 @ SY865 )
              | ( subset @ ( unordered_pair @ SV491 @ SY864 ) @ SY865 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2615]) ).

thf(2759,plain,
    ! [SV491: $i] :
      ( ( ~ ~ ( ~ ! [SY866: $i,SY867: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV491 @ SY866 ) @ SY867 )
                    | ( in @ SV491 @ SY867 ) )
              | ~ ! [SY868: $i,SY869: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV491 @ SY868 ) @ SY869 )
                    | ( in @ SY868 @ SY869 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2615]) ).

thf(2760,plain,
    ! [SV492: $i] :
      ( ( ~ ! [SY870: $i,SY871: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                            | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                             != SV492 ) )
                        | ~ ( ~ ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                            | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                             != SY870 ) ) )
                  | ~ ( ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                      | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                        = SV492 )
                      | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                        = SY870 ) ) )
              | ( SY871
                = ( unordered_pair @ SV492 @ SY870 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2616]) ).

thf(2761,plain,
    ! [SV492: $i] :
      ( ( ~ ! [SY872: $i,SY873: $i] :
              ( ( SY873
               != ( unordered_pair @ SV492 @ SY872 ) )
              | ~ ( ~ ! [SY874: $i] :
                        ( ~ ( in @ SY874 @ SY873 )
                        | ( SY874 = SV492 )
                        | ( SY874 = SY872 ) )
                  | ~ ~ ( ~ ! [SY875: $i] :
                              ( ( SY875 != SV492 )
                              | ( in @ SY875 @ SY873 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY872 )
                              | ( in @ SX3 @ SY873 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2616]) ).

thf(2762,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ~ ! [SY935: $i,SY936: $i] :
              ( ~ ( in @ SV493 @ SY935 )
              | ~ ( in @ SV547 @ SY936 )
              | ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY935 @ SY936 ) ) )
        | ~ ~ ( ~ ! [SY937: $i] :
                    ( ! [SY938: $i] :
                        ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY937 @ SY938 ) )
                    | ( in @ SV493 @ SY937 ) )
              | ~ ! [SY939: $i,SY940: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY939 @ SY940 ) )
                    | ( in @ SV547 @ SY940 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2617]) ).

thf(2763,plain,
    ! [SV494: $i] :
      ( ( ~ ! [SY884: $i,SY885: $i] :
              ( ~ ( relation @ SY885 )
              | ~ ( in @ ( ordered_pair @ SV494 @ SY884 ) @ SY885 )
              | ( in @ SV494 @ ( relation_dom @ SY885 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2618]) ).

thf(2764,plain,
    ! [SV494: $i] :
      ( ( ~ ! [SY886: $i,SY887: $i] :
              ( ~ ( relation @ SY887 )
              | ~ ( in @ ( ordered_pair @ SV494 @ SY886 ) @ SY887 )
              | ( in @ SY886 @ ( relation_rng @ SY887 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2618]) ).

thf(2765,plain,
    ( ( empty @ sK35_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2619]) ).

thf(2766,plain,
    ( ( relation @ sK35_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2620]) ).

thf(2767,plain,
    ( ( ~ ( empty @ sK34_A ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2621]) ).

thf(2768,plain,
    ( ( relation @ sK34_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2622]) ).

thf(2769,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK30_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2623]) ).

thf(2770,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2624]) ).

thf(2771,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK29_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK29_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK29_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2625]) ).

thf(2772,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1
           != ( singleton @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ( SX2 != SX0 )
                    | ( in @ SX2 @ SX1 ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX1 )
                    | ( SX2 = SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2626]) ).

thf(2773,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2627]) ).

thf(2774,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( proper_subset @ SX0 @ SX1 )
                | ( SX0 != SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( proper_subset @ SX0 @ SX1 )
                | ( subset @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2628]) ).

thf(2775,plain,
    ! [SV495: $i] :
      ( ( ~ ! [SY888: $i,SY889: $i] :
              ( ~ ( ~ ( ! [SY890: $i,SY891: $i] :
                          ( ~ ( in @ SY890 @ SV495 )
                          | ~ ( in @ SY891 @ SY888 )
                          | ( ( sK23_D @ SY889 @ SY888 @ SV495 )
                           != ( ordered_pair @ SY890 @ SY891 ) ) )
                      | ~ ( in @ ( sK23_D @ SY889 @ SY888 @ SV495 ) @ SY889 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY889 @ SY888 @ SV495 ) @ SV495 )
                                | ~ ( in @ ( sK25_SY318 @ SY889 @ SY888 @ SV495 ) @ SY888 ) )
                          | ( ( sK23_D @ SY889 @ SY888 @ SV495 )
                           != ( ordered_pair @ ( sK24_SY316 @ SY889 @ SY888 @ SV495 ) @ ( sK25_SY318 @ SY889 @ SY888 @ SV495 ) ) ) )
                      | ( in @ ( sK23_D @ SY889 @ SY888 @ SV495 ) @ SY889 ) ) )
              | ( SY889
                = ( cartesian_product2 @ SV495 @ SY888 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2629]) ).

thf(2776,plain,
    ! [SV495: $i] :
      ( ( ~ ! [SY892: $i,SY893: $i] :
              ( ( SY893
               != ( cartesian_product2 @ SV495 @ SY892 ) )
              | ~ ( ~ ! [SY894: $i] :
                        ( ! [SY895: $i,SY896: $i] :
                            ( ~ ( in @ SY895 @ SV495 )
                            | ~ ( in @ SY896 @ SY892 )
                            | ( SY894
                             != ( ordered_pair @ SY895 @ SY896 ) ) )
                        | ( in @ SY894 @ SY893 ) )
                  | ~ ! [SY897: $i] :
                        ( ~ ( in @ SY897 @ SY893 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY897 @ SY893 @ SY892 @ SV495 ) @ SV495 )
                                  | ~ ( in @ ( sK22_SY313 @ SY897 @ SY893 @ SY892 @ SV495 ) @ SY892 ) )
                            | ( SY897
                             != ( ordered_pair @ ( sK21_E @ SY897 @ SY893 @ SY892 @ SV495 ) @ ( sK22_SY313 @ SY897 @ SY893 @ SY892 @ SV495 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2629]) ).

thf(2777,plain,
    ! [SV496: $i] :
      ( ( ( ~ ( element @ ( sK8_B @ SV496 ) @ ( powerset @ SV496 ) )
          | ~ ~ ( empty @ ( sK8_B @ SV496 ) ) )
        = $false )
      | ( ( empty @ SV496 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2630]) ).

thf(2778,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2631]) ).

thf(2779,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2632]) ).

thf(2780,plain,
    ! [SV497: $i] :
      ( ( ~ ! [SY898: $i,SY899: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SV497 )
                      | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY898 )
                      | ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SV497 )
                            | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) )
                        | ~ ( ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY898 )
                            | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) ) ) )
              | ( SY899
                = ( set_difference @ SV497 @ SY898 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2633]) ).

thf(2781,plain,
    ! [SV497: $i] :
      ( ( ~ ! [SY900: $i,SY901: $i] :
              ( ( SY901
               != ( set_difference @ SV497 @ SY900 ) )
              | ~ ( ~ ! [SY902: $i] :
                        ( ~ ( in @ SY902 @ SV497 )
                        | ( in @ SY902 @ SY900 )
                        | ( in @ SY902 @ SY901 ) )
                  | ~ ~ ( ~ ! [SY903: $i] :
                              ( ~ ( in @ SY903 @ SY901 )
                              | ( in @ SY903 @ SV497 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY901 )
                              | ~ ( in @ SX3 @ SY900 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2633]) ).

thf(2782,plain,
    ! [SV498: $i] :
      ( ( ( relation @ SV498 )
        = $false )
      | ( ( ~ ( ~ ! [SY905: $i] :
                    ( ~ ( ~ ( ! [SY906: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ SY906 ) @ SV498 )
                            | ~ ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ ( sK41_SY326 @ SY905 @ SV498 ) ) @ SV498 )
                            | ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) ) )
                    | ( SY905
                      = ( relation_dom @ SV498 ) ) )
              | ~ ! [SY907: $i] :
                    ( ( SY907
                     != ( relation_dom @ SV498 ) )
                    | ~ ( ~ ! [SY908: $i] :
                              ( ! [SY909: $i] :
                                  ~ ( in @ ( ordered_pair @ SY908 @ SY909 ) @ SV498 )
                              | ( in @ SY908 @ SY907 ) )
                        | ~ ! [SY910: $i] :
                              ( ~ ( in @ SY910 @ SY907 )
                              | ( in @ ( ordered_pair @ SY910 @ ( sK39_D @ SY910 @ SY907 @ SV498 ) ) @ SV498 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2634]) ).

thf(2783,plain,
    ( ( ( relation_dom @ empty_set )
      = empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2635]) ).

thf(2784,plain,
    ( ( ( relation_rng @ empty_set )
      = empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2636]) ).

thf(2785,plain,
    ! [SV407: $i,SV558: $i] :
      ( ( ( ~ ( relation @ SV558 )
          | ( subset @ ( relation_dom @ ( relation_composition @ SV407 @ SV558 ) ) @ ( relation_dom @ SV407 ) ) )
        = $true )
      | ( ( relation @ SV407 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2639]) ).

thf(2786,plain,
    ! [SV408: $i,SV559: $i] :
      ( ( ( ~ ( relation @ SV559 )
          | ( subset @ ( relation_rng @ ( relation_composition @ SV408 @ SV559 ) ) @ ( relation_rng @ SV559 ) ) )
        = $true )
      | ( ( relation @ SV408 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2640]) ).

thf(2787,plain,
    ! [SV409: $i,SV560: $i] :
      ( ( ( ~ ( relation @ SV560 )
          | ~ ( subset @ ( relation_rng @ SV409 ) @ ( relation_dom @ SV560 ) )
          | ( ( relation_dom @ ( relation_composition @ SV409 @ SV560 ) )
            = ( relation_dom @ SV409 ) ) )
        = $true )
      | ( ( relation @ SV409 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2641]) ).

thf(2788,plain,
    ! [SV410: $i,SV561: $i] :
      ( ( ( ~ ( relation @ SV561 )
          | ~ ( subset @ ( relation_dom @ SV410 ) @ ( relation_rng @ SV561 ) )
          | ( ( relation_rng @ ( relation_composition @ SV561 @ SV410 ) )
            = ( relation_rng @ SV410 ) ) )
        = $true )
      | ( ( relation @ SV410 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2642]) ).

thf(2789,plain,
    ! [SV411: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK49_B @ SV411 ) @ ( sK50_SY332 @ SV411 ) ) @ SV411 )
        = $true )
      | ( ( SV411 = empty_set )
        = $true )
      | ( ( relation @ SV411 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2643]) ).

thf(2790,plain,
    ! [SV499: $i,SV415: $i] :
      ( ( ( ~ ( relation @ SV415 ) )
        = $true )
      | ( ( ~ ( relation @ SV499 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV415 @ SV499 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2647]) ).

thf(2791,plain,
    ! [SV500: $i,SV416: $i] :
      ( ( ( ~ ( relation @ SV416 ) )
        = $true )
      | ( ( ~ ( relation @ SV500 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV416 @ SV500 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2648]) ).

thf(2792,plain,
    ! [SV417: $i] :
      ( ( ( relation @ SV417 )
        = $false )
      | ( ( empty @ SV417 )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV417 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2649]) ).

thf(2793,plain,
    ! [SV418: $i] :
      ( ( ( relation @ SV418 )
        = $false )
      | ( ( empty @ SV418 )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV418 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2650]) ).

thf(2794,plain,
    ! [SV501: $i,SV425: $i] :
      ( ( ( in @ SV425 @ SV501 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV425 ) @ SV501 )
          = SV501 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2653]) ).

thf(2795,plain,
    ! [SV502: $i,SV426: $i] :
      ( ( ( disjoint @ ( singleton @ SV426 ) @ SV502 )
        = $false )
      | ( ( ~ ( in @ SV426 @ SV502 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2654]) ).

thf(2796,plain,
    ! [SV428: $i,SV504: $i] :
      ( ( ( element @ SV504 @ ( powerset @ SV428 ) )
        = $false )
      | ( ( ! [SY911: $i] :
              ( ~ ( in @ SY911 @ SV504 )
              | ( in @ SY911 @ SV428 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2656]) ).

thf(2797,plain,
    ! [SV505: $i,SV429: $i] :
      ( ( ( subset @ SV429 @ SV505 )
        = $false )
      | ( ( ! [SY912: $i] :
              ( ( in @ SY912 @ SV429 )
              | ( subset @ SV429 @ ( set_difference @ SV505 @ ( singleton @ SY912 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2657]) ).

thf(2798,plain,
    ! [SV506: $i,SV430: $i] :
      ( ( ( in @ SV430 @ SV506 )
        = $false )
      | ( ( subset @ SV430 @ ( union @ SV506 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2658]) ).

thf(2799,plain,
    ! [SV562: $i,SV548: $i,SV507: $i,SV431: $i] :
      ( ( ~ ( subset @ SV431 @ SV507 )
        | ~ ( subset @ SV548 @ SV562 )
        | ( subset @ ( cartesian_product2 @ SV431 @ SV548 ) @ ( cartesian_product2 @ SV507 @ SV562 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2659]) ).

thf(2800,plain,
    ! [SV508: $i,SV432: $i] :
      ( ( ( subset @ SV432 @ SV508 )
        = $false )
      | ( ( ( set_union2 @ SV432 @ SV508 )
          = SV508 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2660]) ).

thf(2801,plain,
    ! [SV549: $i,SV510: $i,SV434: $i] :
      ( ( ( ~ ( subset @ SV434 @ SV510 )
          | ~ ( subset @ SV434 @ SV549 ) )
        = $true )
      | ( ( subset @ SV434 @ ( set_intersection2 @ SV510 @ SV549 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2661]) ).

thf(2802,plain,
    ! [SV550: $i,SV511: $i,SV435: $i] :
      ( ( ( ~ ( subset @ SV435 @ SV511 )
          | ~ ( subset @ SV511 @ SV550 ) )
        = $true )
      | ( ( subset @ SV435 @ SV550 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2662]) ).

thf(2803,plain,
    ! [SV512: $i,SV436: $i] :
      ( ( ( subset @ SV436 @ SV512 )
        = $false )
      | ( ( ! [SY917: $i] : ( subset @ ( set_intersection2 @ SV436 @ SY917 ) @ ( set_intersection2 @ SV512 @ SY917 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2663]) ).

thf(2804,plain,
    ! [SV513: $i,SV437: $i] :
      ( ( ( subset @ SV437 @ SV513 )
        = $false )
      | ( ( ( set_intersection2 @ SV437 @ SV513 )
          = SV437 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2664]) ).

thf(2805,plain,
    ! [SV514: $i,SV438: $i] :
      ( ( ( subset @ SV438 @ SV514 )
        = $false )
      | ( ( ! [SY918: $i] : ( subset @ ( set_difference @ SV438 @ SY918 ) @ ( set_difference @ SV514 @ SY918 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2665]) ).

thf(2806,plain,
    ! [SV518: $i,SV442: $i] :
      ( ( ( subset @ SV442 @ SV518 )
        = $false )
      | ( ( SV518
          = ( set_union2 @ SV442 @ ( set_difference @ SV518 @ SV442 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2666]) ).

thf(2807,plain,
    ! [SV519: $i,SV443: $i] :
      ( ( ( in @ SV443 @ SV519 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV443 ) @ SV519 )
          = SV519 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2667]) ).

thf(2808,plain,
    ! [SV445: $i,SV521: $i] :
      ( ( ( proper_subset @ SV521 @ SV445 )
        = $false )
      | ( ( ~ ( subset @ SV445 @ SV521 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2668]) ).

thf(2809,plain,
    ! [SV446: $i,SV551: $i,SV522: $i] :
      ( ( ( ~ ( disjoint @ SV522 @ SV551 )
          | ~ ( subset @ SV446 @ SV522 ) )
        = $true )
      | ( ( disjoint @ SV446 @ SV551 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2669]) ).

thf(2810,plain,
    ! [SV523: $i,SV448: $i] :
      ( ( ( subset @ ( singleton @ SV448 ) @ ( singleton @ SV523 ) )
        = $false )
      | ( ( SV448 = SV523 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2670]) ).

thf(2811,plain,
    ! [SV552: $i,SV525: $i,SV450: $i] :
      ( ( ( ~ ( subset @ SV450 @ SV525 )
          | ~ ( subset @ SV552 @ SV525 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV450 @ SV552 ) @ SV525 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2671]) ).

thf(2812,plain,
    ! [SV563: $i,SV526: $i,SV451: $i] :
      ( ( ( ( ( singleton @ SV451 )
           != ( unordered_pair @ SV526 @ SV563 ) ) )
        = $true )
      | ( ( SV451 = SV526 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2672]) ).

thf(2813,plain,
    ! [SV527: $i,SV452: $i] :
      ( ( ( in @ SV452 @ SV527 )
        = $false )
      | ( ( subset @ SV452 @ ( union @ SV527 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2673]) ).

thf(2814,plain,
    ! [SV553: $i,SV528: $i,SV454: $i] :
      ( ( ( ( ( singleton @ SV454 )
           != ( unordered_pair @ SV528 @ SV553 ) ) )
        = $true )
      | ( ( SV528 = SV553 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2674]) ).

thf(2815,plain,
    ! [SV529: $i,SV455: $i] :
      ( ( ( in @ SV455 @ SV529 )
        = $false )
      | ( ( ~ ( in @ SV529 @ SV455 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2675]) ).

thf(2816,plain,
    ! [SV554: $i,SV462: $i] :
      ( ( ( empty @ ( set_union2 @ SV462 @ SV554 ) )
        = $false )
      | ( ( empty @ SV462 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2677]) ).

thf(2817,plain,
    ! [SV464: $i,SV555: $i] :
      ( ( ( empty @ ( set_union2 @ SV555 @ SV464 ) )
        = $false )
      | ( ( empty @ SV464 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2679]) ).

thf(2818,plain,
    ! [SV535: $i,SV465: $i] :
      ( ( ( empty @ SV465 )
        = $true )
      | ( ( empty @ SV535 )
        = $true )
      | ( ( ~ ( empty @ ( cartesian_product2 @ SV465 @ SV535 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2680]) ).

thf(2819,plain,
    ! [SV536: $i,SV469: $i] :
      ( ( ( disjoint @ SV469 @ SV536 )
        = $false )
      | ( ( disjoint @ SV536 @ SV469 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2681]) ).

thf(2820,plain,
    ! [SV537: $i,SV470: $i] :
      ( ( ( in @ SV470 @ SV537 )
        = $false )
      | ( ( element @ SV470 @ SV537 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2682]) ).

thf(2821,plain,
    ! [SV538: $i,SV471: $i] :
      ( ( ( element @ SV471 @ SV538 )
        = $false )
      | ( ( ( empty @ SV538 )
          | ( in @ SV471 @ SV538 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2683]) ).

thf(2822,plain,
    ! [SV472: $i,SV556: $i,SV539: $i] :
      ( ( ( ~ ( element @ SV539 @ ( powerset @ SV556 ) )
          | ~ ( in @ SV472 @ SV539 ) )
        = $true )
      | ( ( element @ SV472 @ SV556 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2684]) ).

thf(2823,plain,
    ! [SV473: $i,SV557: $i,SV540: $i] :
      ( ( ( ~ ( element @ SV540 @ ( powerset @ SV557 ) )
          | ~ ( in @ SV473 @ SV540 ) )
        = $true )
      | ( ( ~ ( empty @ SV557 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2685]) ).

thf(2824,plain,
    ! [SV474: $i,SV541: $i] :
      ( ( ( empty @ SV541 )
        = $false )
      | ( ( ~ ( in @ SV474 @ SV541 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2686]) ).

thf(2825,plain,
    ! [SV542: $i,SV475: $i] :
      ( ( ( SV475 = SV542 )
        = $true )
      | ( ( ~ ( empty @ SV475 ) )
        = $true )
      | ( ( ~ ( empty @ SV542 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2687]) ).

thf(2826,plain,
    ! [SV476: $i] :
      ( ( ! [SY796: $i,SY797: $i] :
            ( ~ ( relation @ SY797 )
            | ~ ( in @ ( ordered_pair @ SV476 @ SY796 ) @ SY797 )
            | ( in @ SV476 @ ( relation_field @ SY797 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2688]) ).

thf(2827,plain,
    ! [SV476: $i] :
      ( ( ! [SY798: $i,SY799: $i] :
            ( ~ ( relation @ SY799 )
            | ~ ( in @ ( ordered_pair @ SV476 @ SY798 ) @ SY799 )
            | ( in @ SY798 @ ( relation_field @ SY799 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2689]) ).

thf(2828,plain,
    ! [SV477: $i,SV564: $i] :
      ( ( ( ~ ( relation @ SV564 )
          | ~ ( ~ ! [SY942: $i] :
                    ( ~ ( relation @ SY942 )
                    | ~ ( ~ ( ! [SY943: $i] :
                                ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ SY943 ) @ SV477 )
                                | ~ ( in @ ( ordered_pair @ SY943 @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                            | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) )
                        | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) ) @ SV477 )
                                | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                            | ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) ) )
                    | ( SY942
                      = ( relation_composition @ SV477 @ SV564 ) ) )
              | ~ ! [SY944: $i] :
                    ( ~ ( relation @ SY944 )
                    | ( SY944
                     != ( relation_composition @ SV477 @ SV564 ) )
                    | ~ ( ~ ! [SY945: $i,SY946: $i] :
                              ( ! [SY947: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY945 @ SY947 ) @ SV477 )
                                  | ~ ( in @ ( ordered_pair @ SY947 @ SY946 ) @ SV564 ) )
                              | ( in @ ( ordered_pair @ SY945 @ SY946 ) @ SY944 ) )
                        | ~ ! [SY948: $i,SY949: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY948 @ SY949 ) @ SY944 )
                              | ~ ( ~ ( in @ ( ordered_pair @ SY948 @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) ) @ SV477 )
                                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) @ SY949 ) @ SV564 ) ) ) ) ) ) )
        = $true )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2690]) ).

thf(2829,plain,
    ! [SV478: $i] :
      ( ( ! [SY809: $i] :
            ( ~ ( subset @ SY809 @ ( sK2_B @ SV478 ) )
            | ( are_equipotent @ SY809 @ ( sK2_B @ SV478 ) )
            | ( in @ SY809 @ ( sK2_B @ SV478 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2691]) ).

thf(2830,plain,
    ! [SV478: $i] :
      ( ( ~ ( ~ ! [SY810: $i] :
                  ( ~ ( ~ ! [SY811: $i] :
                            ( ~ ( subset @ SY811 @ SY810 )
                            | ( in @ SY811 @ ( sK3_SY300 @ SY810 @ SV478 ) ) )
                      | ~ ( in @ ( sK3_SY300 @ SY810 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
                  | ~ ( in @ SY810 @ ( sK2_B @ SV478 ) ) )
            | ~ ~ ( ~ ! [SY812: $i,SY813: $i] :
                        ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
                        | ~ ( subset @ SY813 @ SY812 )
                        | ( in @ SY813 @ ( sK2_B @ SV478 ) ) )
                  | ~ ( in @ SV478 @ ( sK2_B @ SV478 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2692]) ).

thf(2831,plain,
    ! [SV479: $i] :
      ( ( ! [SY814: $i] :
            ( ~ ( subset @ SV479 @ SY814 )
            | ! [SY815: $i] : ( subset @ ( cartesian_product2 @ SV479 @ SY815 ) @ ( cartesian_product2 @ SY814 @ SY815 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2693]) ).

thf(2832,plain,
    ! [SV479: $i] :
      ( ( ! [SY816: $i] :
            ( ~ ( subset @ SV479 @ SY816 )
            | ! [SY817: $i] : ( subset @ ( cartesian_product2 @ SY817 @ SV479 ) @ ( cartesian_product2 @ SY817 @ SY816 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2694]) ).

thf(2833,plain,
    ! [SV565: $i] :
      ( ( ! [SY950: $i] :
            ( ~ ( subset @ SV565 @ ( singleton @ SY950 ) )
            | ( SV565 = empty_set )
            | ( SV565
              = ( singleton @ SY950 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2695]) ).

thf(2834,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2696]) ).

thf(2835,plain,
    ! [SV543: $i,SV480: $i] :
      ( ( ~ ! [SY925: $i] :
              ( ! [SY926: $i] :
                  ( ( ordered_pair @ SV480 @ SV543 )
                 != ( ordered_pair @ SY925 @ SY926 ) )
              | ( SV480 = SY925 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2697]) ).

thf(2836,plain,
    ! [SV543: $i,SV480: $i] :
      ( ( ~ ! [SY927: $i,SY928: $i] :
              ( ( ( ordered_pair @ SV480 @ SV543 )
               != ( ordered_pair @ SY927 @ SY928 ) )
              | ( SV543 = SY928 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2697]) ).

thf(2837,plain,
    ! [SV566: $i] :
      ( ( ! [SY951: $i] :
            ( ( ( set_difference @ SV566 @ SY951 )
             != empty_set )
            | ( subset @ SV566 @ SY951 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2698]) ).

thf(2838,plain,
    ! [SV567: $i] :
      ( ( ! [SY952: $i] :
            ( ~ ( subset @ SV567 @ SY952 )
            | ( ( set_difference @ SV567 @ SY952 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2699]) ).

thf(2839,plain,
    ! [SV481: $i] :
      ( ( ( ~ ! [SY823: $i] :
                ( ~ ( relation @ SY823 )
                | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                        | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                        | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) ) )
                | ( SY823
                  = ( relation_inverse @ SV481 ) ) )
          | ~ ! [SY824: $i] :
                ( ~ ( relation @ SY824 )
                | ( SY824
                 != ( relation_inverse @ SV481 ) )
                | ~ ( ~ ! [SY825: $i,SY826: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY825 @ SY826 ) @ SY824 )
                          | ( in @ ( ordered_pair @ SY826 @ SY825 ) @ SV481 ) )
                    | ~ ! [SY827: $i,SY828: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY828 @ SY827 ) @ SV481 )
                          | ( in @ ( ordered_pair @ SY827 @ SY828 ) @ SY824 ) ) ) ) )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2700]) ).

thf(2840,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ~ ! [SY929: $i,SY930: $i] :
              ( ~ ( in @ SV482 @ SY929 )
              | ~ ( in @ SV544 @ SY930 )
              | ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY929 @ SY930 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2701]) ).

thf(2841,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ~ ~ ( ~ ! [SY931: $i] :
                    ( ! [SY932: $i] :
                        ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY931 @ SY932 ) )
                    | ( in @ SV482 @ SY931 ) )
              | ~ ! [SY933: $i,SY934: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY933 @ SY934 ) )
                    | ( in @ SV544 @ SY934 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2701]) ).

thf(2842,plain,
    ! [SV568: $i] :
      ( ( ! [SY953: $i] :
            ( ( ( set_intersection2 @ SV568 @ SY953 )
             != empty_set )
            | ( disjoint @ SV568 @ SY953 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2702]) ).

thf(2843,plain,
    ! [SV569: $i] :
      ( ( ! [SY954: $i] :
            ( ~ ( disjoint @ SV569 @ SY954 )
            | ( ( set_intersection2 @ SV569 @ SY954 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2703]) ).

thf(2844,plain,
    ! [SV570: $i] :
      ( ( ! [SY955: $i] :
            ( ~ ( subset @ SV570 @ SY955 )
            | ~ ( subset @ SY955 @ SV570 )
            | ( SV570 = SY955 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2704]) ).

thf(2845,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2705]) ).

thf(2846,plain,
    ! [SV571: $i] :
      ( ( ! [SY956: $i] :
            ( ( ( set_difference @ SV571 @ ( singleton @ SY956 ) )
             != SV571 )
            | ~ ( in @ SY956 @ SV571 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2706]) ).

thf(2847,plain,
    ! [SV572: $i] :
      ( ( ! [SY957: $i] :
            ( ( in @ SY957 @ SV572 )
            | ( ( set_difference @ SV572 @ ( singleton @ SY957 ) )
              = SV572 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2707]) ).

thf(2848,plain,
    ! [SV483: $i,SV545: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV483 )
          | ~ ~ ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV545 ) )
        = $false )
      | ( ( element @ SV483 @ ( powerset @ SV545 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2708]) ).

thf(2849,plain,
    ! [SV484: $i] :
      ( ( ( ~ ! [SY837: $i] :
                ( ~ ( relation @ SY837 )
                | ~ ( subset @ SV484 @ SY837 )
                | ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SY837 ) ) )
          | ~ ! [SY838: $i] :
                ( ~ ( relation @ SY838 )
                | ~ ( subset @ SV484 @ SY838 )
                | ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SY838 ) ) ) )
        = $false )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2709]) ).

thf(2850,plain,
    ! [SV573: $i] :
      ( ( ! [SY958: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SY958 @ SV573 ) @ SV573 )
                | ~ ~ ( in @ ( sK20_C @ SY958 @ SV573 ) @ SY958 ) )
            | ( subset @ SV573 @ SY958 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2710]) ).

thf(2851,plain,
    ! [SV574: $i] :
      ( ( ! [SY959: $i] :
            ( ~ ( subset @ SV574 @ SY959 )
            | ! [SY960: $i] :
                ( ~ ( in @ SY960 @ SV574 )
                | ( in @ SY960 @ SY959 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2711]) ).

thf(2852,plain,
    ! [SV485: $i] :
      ( ( ! [SY839: $i,SY840: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                          | ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SV485 ) )
                      | ~ ( ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                          | ~ ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY839 ) ) )
                | ~ ( ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY840 )
                    | ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SV485 )
                    | ( in @ ( sK26_D @ SY840 @ SY839 @ SV485 ) @ SY839 ) ) )
            | ( SY840
              = ( set_union2 @ SV485 @ SY839 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2712]) ).

thf(2853,plain,
    ! [SV485: $i] :
      ( ( ! [SY841: $i,SY842: $i] :
            ( ( SY842
             != ( set_union2 @ SV485 @ SY841 ) )
            | ~ ( ~ ! [SY843: $i] :
                      ( ~ ( in @ SY843 @ SY842 )
                      | ( in @ SY843 @ SV485 )
                      | ( in @ SY843 @ SY841 ) )
                | ~ ~ ( ~ ! [SY844: $i] :
                            ( ~ ( in @ SY844 @ SV485 )
                            | ( in @ SY844 @ SY842 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY841 )
                            | ( in @ SX3 @ SY842 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2713]) ).

thf(2854,plain,
    ! [SV575: $i] :
      ( ( ! [SY961: $i] :
            ( ~ ( in @ SV575 @ SY961 )
            | ( subset @ ( singleton @ SV575 ) @ SY961 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2714]) ).

thf(2855,plain,
    ! [SV576: $i] :
      ( ( ! [SY962: $i] :
            ( ~ ( subset @ ( singleton @ SV576 ) @ SY962 )
            | ( in @ SV576 @ SY962 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2715]) ).

thf(2856,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2716]) ).

thf(2857,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2717]) ).

thf(2858,plain,
    ! [SV577: $i] :
      ( ( ! [SY963: $i] :
            ( ~ ( ~ ( ! [SY964: $i] :
                        ( ~ ( in @ ( sK17_C @ SY963 @ SV577 ) @ SY964 )
                        | ~ ( in @ SY964 @ SV577 ) )
                    | ~ ( in @ ( sK17_C @ SY963 @ SV577 ) @ SY963 ) )
                | ~ ( ~ ( ~ ( in @ ( sK17_C @ SY963 @ SV577 ) @ ( sK18_SY312 @ SY963 @ SV577 ) )
                        | ~ ( in @ ( sK18_SY312 @ SY963 @ SV577 ) @ SV577 ) )
                    | ( in @ ( sK17_C @ SY963 @ SV577 ) @ SY963 ) ) )
            | ( SY963
              = ( union @ SV577 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2718]) ).

thf(2859,plain,
    ! [SV578: $i] :
      ( ( ! [SY965: $i] :
            ( ( SY965
             != ( union @ SV578 ) )
            | ~ ( ~ ! [SY966: $i] :
                      ( ! [SY967: $i] :
                          ( ~ ( in @ SY966 @ SY967 )
                          | ~ ( in @ SY967 @ SV578 ) )
                      | ( in @ SY966 @ SY965 ) )
                | ~ ! [SY968: $i] :
                      ( ~ ( in @ SY968 @ SY965 )
                      | ~ ( ~ ( in @ SY968 @ ( sK16_D @ SY968 @ SY965 @ SV578 ) )
                          | ~ ( in @ ( sK16_D @ SY968 @ SY965 @ SV578 ) @ SV578 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2719]) ).

thf(2860,plain,
    ! [SV486: $i] :
      ( ( ! [SY846: $i,SY847: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SV486 )
                    | ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY846 )
                    | ~ ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) )
                | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SV486 )
                          | ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) )
                      | ~ ( ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY846 )
                          | ( in @ ( sK19_D @ SY847 @ SY846 @ SV486 ) @ SY847 ) ) ) )
            | ( SY847
              = ( set_intersection2 @ SV486 @ SY846 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2720]) ).

thf(2861,plain,
    ! [SV486: $i] :
      ( ( ! [SY848: $i,SY849: $i] :
            ( ( SY849
             != ( set_intersection2 @ SV486 @ SY848 ) )
            | ~ ( ~ ! [SY850: $i] :
                      ( ~ ( in @ SY850 @ SV486 )
                      | ~ ( in @ SY850 @ SY848 )
                      | ( in @ SY850 @ SY849 ) )
                | ~ ~ ( ~ ! [SY851: $i] :
                            ( ~ ( in @ SY851 @ SY849 )
                            | ( in @ SY851 @ SV486 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY849 )
                            | ( in @ SX3 @ SY848 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2721]) ).

thf(2862,plain,
    ! [SV579: $i] :
      ( ( ~ ( empty @ SV579 )
        | ( empty @ ( relation_dom @ SV579 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2724]) ).

thf(2863,plain,
    ! [SV580: $i] :
      ( ( ~ ( empty @ SV580 )
        | ( relation @ ( relation_dom @ SV580 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2725]) ).

thf(2864,plain,
    ! [SV487: $i] :
      ( ( ! [SY853: $i] :
            ( ~ ( subset @ SY853 @ ( sK32_B @ SV487 ) )
            | ( are_equipotent @ SY853 @ ( sK32_B @ SV487 ) )
            | ( in @ SY853 @ ( sK32_B @ SV487 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2726]) ).

thf(2865,plain,
    ! [SV487: $i] :
      ( ( ~ ( ~ ! [SY854: $i] :
                  ( ~ ( in @ SY854 @ ( sK32_B @ SV487 ) )
                  | ( in @ ( powerset @ SY854 ) @ ( sK32_B @ SV487 ) ) )
            | ~ ~ ( ~ ! [SY855: $i,SY856: $i] :
                        ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
                        | ~ ( subset @ SY856 @ SY855 )
                        | ( in @ SY856 @ ( sK32_B @ SV487 ) ) )
                  | ~ ( in @ SV487 @ ( sK32_B @ SV487 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2727]) ).

thf(2866,plain,
    ! [SV581: $i] :
      ( ( ~ ( empty @ SV581 )
        | ( empty @ ( relation_rng @ SV581 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2728]) ).

thf(2867,plain,
    ! [SV582: $i] :
      ( ( ~ ( empty @ SV582 )
        | ( relation @ ( relation_rng @ SV582 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2729]) ).

thf(2868,plain,
    ! [SV583: $i] :
      ( ( ! [SY969: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SY969 @ SV583 ) @ SY969 )
                    | ~ ( subset @ ( sK28_C @ SY969 @ SV583 ) @ SV583 ) )
                | ~ ( ( in @ ( sK28_C @ SY969 @ SV583 ) @ SY969 )
                    | ( subset @ ( sK28_C @ SY969 @ SV583 ) @ SV583 ) ) )
            | ( SY969
              = ( powerset @ SV583 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2730]) ).

thf(2869,plain,
    ! [SV584: $i] :
      ( ( ! [SY970: $i] :
            ( ( SY970
             != ( powerset @ SV584 ) )
            | ~ ( ~ ! [SY971: $i] :
                      ( ~ ( in @ SY971 @ SY970 )
                      | ( subset @ SY971 @ SV584 ) )
                | ~ ! [SY972: $i] :
                      ( ~ ( subset @ SY972 @ SV584 )
                      | ( in @ SY972 @ SY970 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2731]) ).

thf(2870,plain,
    ! [SV585: $i] :
      ( ( ! [SY973: $i] :
            ( ( disjoint @ SV585 @ SY973 )
            | ~ ( ~ ( in @ ( sK31_C @ SY973 @ SV585 ) @ SV585 )
                | ~ ( in @ ( sK31_C @ SY973 @ SV585 ) @ SY973 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2732]) ).

thf(2871,plain,
    ! [SV586: $i] :
      ( ( ! [SY974: $i] :
            ( ! [SY975: $i] :
                ( ~ ( in @ SY975 @ SV586 )
                | ~ ( in @ SY975 @ SY974 ) )
            | ~ ( disjoint @ SV586 @ SY974 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2733]) ).

thf(2872,plain,
    ( ( ( relation_dom @ sK1_A )
      = empty_set )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2735]) ).

thf(2873,plain,
    ! [SV488: $i] :
      ( ( ( ~ ! [SY857: $i] :
                ( ~ ( ~ ( ! [SY858: $i] :
                            ~ ( in @ ( ordered_pair @ SY858 @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                        | ~ ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY857 @ SV488 ) @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                        | ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) ) )
                | ( SY857
                  = ( relation_rng @ SV488 ) ) )
          | ~ ! [SY859: $i] :
                ( ( SY859
                 != ( relation_rng @ SV488 ) )
                | ~ ( ~ ! [SY860: $i] :
                          ( ! [SY861: $i] :
                              ~ ( in @ ( ordered_pair @ SY861 @ SY860 ) @ SV488 )
                          | ( in @ SY860 @ SY859 ) )
                    | ~ ! [SY862: $i] :
                          ( ~ ( in @ SY862 @ SY859 )
                          | ( in @ ( ordered_pair @ ( sK36_D @ SY862 @ SY859 @ SV488 ) @ SY862 ) @ SV488 ) ) ) ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2736]) ).

thf(2874,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) )
      | ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2737]) ).

thf(2875,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) )
      | ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2738]) ).

thf(2876,plain,
    ! [SV489: $i] :
      ( ( element @ ( sK6_B @ SV489 ) @ ( powerset @ SV489 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2739]) ).

thf(2877,plain,
    ! [SV489: $i] :
      ( ( empty @ ( sK6_B @ SV489 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2740]) ).

thf(2878,plain,
    ! [SV587: $i] :
      ( ( ! [SY976: $i] :
            ( ~ ( in @ SV587 @ SY976 )
            | ( subset @ ( singleton @ SV587 ) @ SY976 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2741]) ).

thf(2879,plain,
    ! [SV588: $i] :
      ( ( ! [SY977: $i] :
            ( ~ ( subset @ ( singleton @ SV588 ) @ SY977 )
            | ( in @ SV588 @ SY977 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2742]) ).

thf(2880,plain,
    ! [SV589: $i] :
      ( ( ! [SY978: $i] :
            ( ~ ( subset @ SV589 @ ( singleton @ SY978 ) )
            | ( SV589 = empty_set )
            | ( SV589
              = ( singleton @ SY978 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2743]) ).

thf(2881,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2744]) ).

thf(2882,plain,
    ! [SV590: $i] :
      ( ( ( in @ ( sK42_B @ SV590 ) @ SV590 )
        | ( SV590 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2745]) ).

thf(2883,plain,
    ! [SV591: $i] :
      ( ( ( SV591 != empty_set )
        | ! [SY979: $i] :
            ~ ( in @ SY979 @ SV591 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2746]) ).

thf(2884,plain,
    ! [SV592: $i] :
      ( ( ~ ( relation @ SV592 )
        | ( ( relation_dom @ SV592 )
         != empty_set )
        | ( SV592 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2747]) ).

thf(2885,plain,
    ! [SV593: $i] :
      ( ( ~ ( relation @ SV593 )
        | ( ( relation_rng @ SV593 )
         != empty_set )
        | ( SV593 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2748]) ).

thf(2886,plain,
    ! [SV594: $i] :
      ( ( ~ ( relation @ SV594 )
        | ( ( relation_rng @ SV594 )
          = ( relation_dom @ ( relation_inverse @ SV594 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2749]) ).

thf(2887,plain,
    ! [SV595: $i] :
      ( ( ~ ( relation @ SV595 )
        | ( ( relation_dom @ SV595 )
          = ( relation_rng @ ( relation_inverse @ SV595 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2750]) ).

thf(2888,plain,
    ! [SV596: $i] :
      ( ( ! [SY980: $i] :
            ( ( ( set_difference @ SV596 @ SY980 )
             != empty_set )
            | ( subset @ SV596 @ SY980 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2751]) ).

thf(2889,plain,
    ! [SV597: $i] :
      ( ( ! [SY981: $i] :
            ( ~ ( subset @ SV597 @ SY981 )
            | ( ( set_difference @ SV597 @ SY981 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2752]) ).

thf(2890,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
              | ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) )
          | ~ ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
              | ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) ) )
        = $false )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2753]) ).

thf(2891,plain,
    ! [SV598: $i] :
      ( ( ! [SY982: $i] :
            ( ~ ( element @ SV598 @ ( powerset @ SY982 ) )
            | ( subset @ SV598 @ SY982 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2754]) ).

thf(2892,plain,
    ! [SV599: $i] :
      ( ( ! [SY983: $i] :
            ( ~ ( subset @ SV599 @ SY983 )
            | ( element @ SV599 @ ( powerset @ SY983 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2755]) ).

thf(2893,plain,
    ! [SV600: $i] :
      ( ( ~ ( ~ ! [SY984: $i,SY985: $i] :
                  ( ( sK48_B @ SV600 )
                 != ( ordered_pair @ SY984 @ SY985 ) )
            | ~ ( in @ ( sK48_B @ SV600 ) @ SV600 ) )
        | ( relation @ SV600 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2756]) ).

thf(2894,plain,
    ! [SV601: $i] :
      ( ( ~ ( relation @ SV601 )
        | ! [SY986: $i] :
            ( ( SY986
              = ( ordered_pair @ ( sK46_C @ SY986 @ SV601 ) @ ( sK47_SY329 @ SY986 @ SV601 ) ) )
            | ~ ( in @ SY986 @ SV601 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2757]) ).

thf(2895,plain,
    ! [SV491: $i] :
      ( ( ! [SY864: $i,SY865: $i] :
            ( ~ ( in @ SV491 @ SY865 )
            | ~ ( in @ SY864 @ SY865 )
            | ( subset @ ( unordered_pair @ SV491 @ SY864 ) @ SY865 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2758]) ).

thf(2896,plain,
    ! [SV491: $i] :
      ( ( ~ ( ~ ! [SY866: $i,SY867: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV491 @ SY866 ) @ SY867 )
                  | ( in @ SV491 @ SY867 ) )
            | ~ ! [SY868: $i,SY869: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV491 @ SY868 ) @ SY869 )
                  | ( in @ SY868 @ SY869 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2759]) ).

thf(2897,plain,
    ! [SV492: $i] :
      ( ( ! [SY870: $i,SY871: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                          | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                           != SV492 ) )
                      | ~ ( ~ ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                          | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                           != SY870 ) ) )
                | ~ ( ( in @ ( sK27_D @ SY871 @ SY870 @ SV492 ) @ SY871 )
                    | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                      = SV492 )
                    | ( ( sK27_D @ SY871 @ SY870 @ SV492 )
                      = SY870 ) ) )
            | ( SY871
              = ( unordered_pair @ SV492 @ SY870 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2760]) ).

thf(2898,plain,
    ! [SV492: $i] :
      ( ( ! [SY872: $i,SY873: $i] :
            ( ( SY873
             != ( unordered_pair @ SV492 @ SY872 ) )
            | ~ ( ~ ! [SY874: $i] :
                      ( ~ ( in @ SY874 @ SY873 )
                      | ( SY874 = SV492 )
                      | ( SY874 = SY872 ) )
                | ~ ~ ( ~ ! [SY875: $i] :
                            ( ( SY875 != SV492 )
                            | ( in @ SY875 @ SY873 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY872 )
                            | ( in @ SX3 @ SY873 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2761]) ).

thf(2899,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ~ ! [SY935: $i,SY936: $i] :
              ( ~ ( in @ SV493 @ SY935 )
              | ~ ( in @ SV547 @ SY936 )
              | ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY935 @ SY936 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2762]) ).

thf(2900,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ~ ~ ( ~ ! [SY937: $i] :
                    ( ! [SY938: $i] :
                        ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY937 @ SY938 ) )
                    | ( in @ SV493 @ SY937 ) )
              | ~ ! [SY939: $i,SY940: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY939 @ SY940 ) )
                    | ( in @ SV547 @ SY940 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2762]) ).

thf(2901,plain,
    ! [SV494: $i] :
      ( ( ! [SY884: $i,SY885: $i] :
            ( ~ ( relation @ SY885 )
            | ~ ( in @ ( ordered_pair @ SV494 @ SY884 ) @ SY885 )
            | ( in @ SV494 @ ( relation_dom @ SY885 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2763]) ).

thf(2902,plain,
    ! [SV494: $i] :
      ( ( ! [SY886: $i,SY887: $i] :
            ( ~ ( relation @ SY887 )
            | ~ ( in @ ( ordered_pair @ SV494 @ SY886 ) @ SY887 )
            | ( in @ SY886 @ ( relation_rng @ SY887 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2764]) ).

thf(2903,plain,
    ( ( empty @ sK34_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2767]) ).

thf(2904,plain,
    ! [SV602: $i] :
      ( ( ! [SY987: $i] :
            ( ( disjoint @ SV602 @ SY987 )
            | ( in @ ( sK30_C @ SY987 @ SV602 ) @ ( set_intersection2 @ SV602 @ SY987 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2769]) ).

thf(2905,plain,
    ! [SV603: $i] :
      ( ( ! [SY988: $i] :
            ( ! [SY989: $i] :
                ~ ( in @ SY989 @ ( set_intersection2 @ SV603 @ SY988 ) )
            | ~ ( disjoint @ SV603 @ SY988 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2770]) ).

thf(2906,plain,
    ! [SV604: $i] :
      ( ( ! [SY990: $i] :
            ( ~ ( ~ ( ( ( sK29_C @ SY990 @ SV604 )
                     != SV604 )
                    | ~ ( in @ ( sK29_C @ SY990 @ SV604 ) @ SY990 ) )
                | ~ ( ( ( sK29_C @ SY990 @ SV604 )
                      = SV604 )
                    | ( in @ ( sK29_C @ SY990 @ SV604 ) @ SY990 ) ) )
            | ( SY990
              = ( singleton @ SV604 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2771]) ).

thf(2907,plain,
    ! [SV605: $i] :
      ( ( ! [SY991: $i] :
            ( ( SY991
             != ( singleton @ SV605 ) )
            | ~ ( ~ ! [SY992: $i] :
                      ( ( SY992 != SV605 )
                      | ( in @ SY992 @ SY991 ) )
                | ~ ! [SY993: $i] :
                      ( ~ ( in @ SY993 @ SY991 )
                      | ( SY993 = SV605 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2772]) ).

thf(2908,plain,
    ! [SV606: $i] :
      ( ( ! [SY994: $i] :
            ( ( SV606 = SY994 )
            | ~ ( subset @ SV606 @ SY994 )
            | ( proper_subset @ SV606 @ SY994 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2773]) ).

thf(2909,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2774]) ).

thf(2910,plain,
    ! [SV495: $i] :
      ( ( ! [SY888: $i,SY889: $i] :
            ( ~ ( ~ ( ! [SY890: $i,SY891: $i] :
                        ( ~ ( in @ SY890 @ SV495 )
                        | ~ ( in @ SY891 @ SY888 )
                        | ( ( sK23_D @ SY889 @ SY888 @ SV495 )
                         != ( ordered_pair @ SY890 @ SY891 ) ) )
                    | ~ ( in @ ( sK23_D @ SY889 @ SY888 @ SV495 ) @ SY889 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY889 @ SY888 @ SV495 ) @ SV495 )
                              | ~ ( in @ ( sK25_SY318 @ SY889 @ SY888 @ SV495 ) @ SY888 ) )
                        | ( ( sK23_D @ SY889 @ SY888 @ SV495 )
                         != ( ordered_pair @ ( sK24_SY316 @ SY889 @ SY888 @ SV495 ) @ ( sK25_SY318 @ SY889 @ SY888 @ SV495 ) ) ) )
                    | ( in @ ( sK23_D @ SY889 @ SY888 @ SV495 ) @ SY889 ) ) )
            | ( SY889
              = ( cartesian_product2 @ SV495 @ SY888 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2775]) ).

thf(2911,plain,
    ! [SV495: $i] :
      ( ( ! [SY892: $i,SY893: $i] :
            ( ( SY893
             != ( cartesian_product2 @ SV495 @ SY892 ) )
            | ~ ( ~ ! [SY894: $i] :
                      ( ! [SY895: $i,SY896: $i] :
                          ( ~ ( in @ SY895 @ SV495 )
                          | ~ ( in @ SY896 @ SY892 )
                          | ( SY894
                           != ( ordered_pair @ SY895 @ SY896 ) ) )
                      | ( in @ SY894 @ SY893 ) )
                | ~ ! [SY897: $i] :
                      ( ~ ( in @ SY897 @ SY893 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY897 @ SY893 @ SY892 @ SV495 ) @ SV495 )
                                | ~ ( in @ ( sK22_SY313 @ SY897 @ SY893 @ SY892 @ SV495 ) @ SY892 ) )
                          | ( SY897
                           != ( ordered_pair @ ( sK21_E @ SY897 @ SY893 @ SY892 @ SV495 ) @ ( sK22_SY313 @ SY897 @ SY893 @ SY892 @ SV495 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2776]) ).

thf(2912,plain,
    ! [SV496: $i] :
      ( ( ( ~ ( element @ ( sK8_B @ SV496 ) @ ( powerset @ SV496 ) ) )
        = $false )
      | ( ( empty @ SV496 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2777]) ).

thf(2913,plain,
    ! [SV496: $i] :
      ( ( ( ~ ~ ( empty @ ( sK8_B @ SV496 ) ) )
        = $false )
      | ( ( empty @ SV496 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2777]) ).

thf(2914,plain,
    ! [SV607: $i] :
      ( ( ! [SY995: $i] :
            ( ( ( set_difference @ SV607 @ SY995 )
             != SV607 )
            | ( disjoint @ SV607 @ SY995 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2778]) ).

thf(2915,plain,
    ! [SV608: $i] :
      ( ( ! [SY996: $i] :
            ( ~ ( disjoint @ SV608 @ SY996 )
            | ( ( set_difference @ SV608 @ SY996 )
              = SV608 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2779]) ).

thf(2916,plain,
    ! [SV497: $i] :
      ( ( ! [SY898: $i,SY899: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SV497 )
                    | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY898 )
                    | ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) )
                | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SV497 )
                          | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) )
                      | ~ ( ~ ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY898 )
                          | ( in @ ( sK15_D @ SY899 @ SY898 @ SV497 ) @ SY899 ) ) ) )
            | ( SY899
              = ( set_difference @ SV497 @ SY898 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2780]) ).

thf(2917,plain,
    ! [SV497: $i] :
      ( ( ! [SY900: $i,SY901: $i] :
            ( ( SY901
             != ( set_difference @ SV497 @ SY900 ) )
            | ~ ( ~ ! [SY902: $i] :
                      ( ~ ( in @ SY902 @ SV497 )
                      | ( in @ SY902 @ SY900 )
                      | ( in @ SY902 @ SY901 ) )
                | ~ ~ ( ~ ! [SY903: $i] :
                            ( ~ ( in @ SY903 @ SY901 )
                            | ( in @ SY903 @ SV497 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY901 )
                            | ~ ( in @ SX3 @ SY900 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2781]) ).

thf(2918,plain,
    ! [SV498: $i] :
      ( ( ( ~ ! [SY905: $i] :
                ( ~ ( ~ ( ! [SY906: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ SY906 ) @ SV498 )
                        | ~ ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ ( sK41_SY326 @ SY905 @ SV498 ) ) @ SV498 )
                        | ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) ) )
                | ( SY905
                  = ( relation_dom @ SV498 ) ) )
          | ~ ! [SY907: $i] :
                ( ( SY907
                 != ( relation_dom @ SV498 ) )
                | ~ ( ~ ! [SY908: $i] :
                          ( ! [SY909: $i] :
                              ~ ( in @ ( ordered_pair @ SY908 @ SY909 ) @ SV498 )
                          | ( in @ SY908 @ SY907 ) )
                    | ~ ! [SY910: $i] :
                          ( ~ ( in @ SY910 @ SY907 )
                          | ( in @ ( ordered_pair @ SY910 @ ( sK39_D @ SY910 @ SY907 @ SV498 ) ) @ SV498 ) ) ) ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2782]) ).

thf(2919,plain,
    ! [SV407: $i,SV558: $i] :
      ( ( ( ~ ( relation @ SV558 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV407 @ SV558 ) ) @ ( relation_dom @ SV407 ) )
        = $true )
      | ( ( relation @ SV407 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2785]) ).

thf(2920,plain,
    ! [SV408: $i,SV559: $i] :
      ( ( ( ~ ( relation @ SV559 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV408 @ SV559 ) ) @ ( relation_rng @ SV559 ) )
        = $true )
      | ( ( relation @ SV408 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2786]) ).

thf(2921,plain,
    ! [SV409: $i,SV560: $i] :
      ( ( ( ~ ( relation @ SV560 ) )
        = $true )
      | ( ( ~ ( subset @ ( relation_rng @ SV409 ) @ ( relation_dom @ SV560 ) )
          | ( ( relation_dom @ ( relation_composition @ SV409 @ SV560 ) )
            = ( relation_dom @ SV409 ) ) )
        = $true )
      | ( ( relation @ SV409 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2787]) ).

thf(2922,plain,
    ! [SV410: $i,SV561: $i] :
      ( ( ( ~ ( relation @ SV561 ) )
        = $true )
      | ( ( ~ ( subset @ ( relation_dom @ SV410 ) @ ( relation_rng @ SV561 ) )
          | ( ( relation_rng @ ( relation_composition @ SV561 @ SV410 ) )
            = ( relation_rng @ SV410 ) ) )
        = $true )
      | ( ( relation @ SV410 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2788]) ).

thf(2923,plain,
    ! [SV499: $i,SV415: $i] :
      ( ( ( relation @ SV415 )
        = $false )
      | ( ( ~ ( relation @ SV499 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV415 @ SV499 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2790]) ).

thf(2924,plain,
    ! [SV500: $i,SV416: $i] :
      ( ( ( relation @ SV416 )
        = $false )
      | ( ( ~ ( relation @ SV500 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV416 @ SV500 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2791]) ).

thf(2925,plain,
    ! [SV417: $i] :
      ( ( ( empty @ ( relation_dom @ SV417 ) )
        = $false )
      | ( ( empty @ SV417 )
        = $true )
      | ( ( relation @ SV417 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2792]) ).

thf(2926,plain,
    ! [SV418: $i] :
      ( ( ( empty @ ( relation_rng @ SV418 ) )
        = $false )
      | ( ( empty @ SV418 )
        = $true )
      | ( ( relation @ SV418 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2793]) ).

thf(2927,plain,
    ! [SV502: $i,SV426: $i] :
      ( ( ( in @ SV426 @ SV502 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV426 ) @ SV502 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2795]) ).

thf(2928,plain,
    ! [SV428: $i,SV504: $i,SV609: $i] :
      ( ( ( ~ ( in @ SV609 @ SV504 )
          | ( in @ SV609 @ SV428 ) )
        = $true )
      | ( ( element @ SV504 @ ( powerset @ SV428 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2796]) ).

thf(2929,plain,
    ! [SV505: $i,SV429: $i,SV610: $i] :
      ( ( ( ( in @ SV610 @ SV429 )
          | ( subset @ SV429 @ ( set_difference @ SV505 @ ( singleton @ SV610 ) ) ) )
        = $true )
      | ( ( subset @ SV429 @ SV505 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2797]) ).

thf(2930,plain,
    ! [SV562: $i,SV548: $i,SV507: $i,SV431: $i] :
      ( ( ( ~ ( subset @ SV431 @ SV507 )
          | ~ ( subset @ SV548 @ SV562 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV431 @ SV548 ) @ ( cartesian_product2 @ SV507 @ SV562 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2799]) ).

thf(2931,plain,
    ! [SV549: $i,SV510: $i,SV434: $i] :
      ( ( ( ~ ( subset @ SV434 @ SV510 ) )
        = $true )
      | ( ( ~ ( subset @ SV434 @ SV549 ) )
        = $true )
      | ( ( subset @ SV434 @ ( set_intersection2 @ SV510 @ SV549 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2801]) ).

thf(2932,plain,
    ! [SV550: $i,SV511: $i,SV435: $i] :
      ( ( ( ~ ( subset @ SV435 @ SV511 ) )
        = $true )
      | ( ( ~ ( subset @ SV511 @ SV550 ) )
        = $true )
      | ( ( subset @ SV435 @ SV550 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2802]) ).

thf(2933,plain,
    ! [SV512: $i,SV611: $i,SV436: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV436 @ SV611 ) @ ( set_intersection2 @ SV512 @ SV611 ) )
        = $true )
      | ( ( subset @ SV436 @ SV512 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2803]) ).

thf(2934,plain,
    ! [SV514: $i,SV612: $i,SV438: $i] :
      ( ( ( subset @ ( set_difference @ SV438 @ SV612 ) @ ( set_difference @ SV514 @ SV612 ) )
        = $true )
      | ( ( subset @ SV438 @ SV514 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2805]) ).

thf(2935,plain,
    ! [SV521: $i,SV445: $i] :
      ( ( ( subset @ SV445 @ SV521 )
        = $false )
      | ( ( proper_subset @ SV521 @ SV445 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2808]) ).

thf(2936,plain,
    ! [SV446: $i,SV551: $i,SV522: $i] :
      ( ( ( ~ ( disjoint @ SV522 @ SV551 ) )
        = $true )
      | ( ( ~ ( subset @ SV446 @ SV522 ) )
        = $true )
      | ( ( disjoint @ SV446 @ SV551 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2809]) ).

thf(2937,plain,
    ! [SV552: $i,SV525: $i,SV450: $i] :
      ( ( ( ~ ( subset @ SV450 @ SV525 ) )
        = $true )
      | ( ( ~ ( subset @ SV552 @ SV525 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV450 @ SV552 ) @ SV525 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2811]) ).

thf(2938,plain,
    ! [SV563: $i,SV526: $i,SV451: $i] :
      ( ( ( ( singleton @ SV451 )
          = ( unordered_pair @ SV526 @ SV563 ) )
        = $false )
      | ( ( SV451 = SV526 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2812]) ).

thf(2939,plain,
    ! [SV553: $i,SV528: $i,SV454: $i] :
      ( ( ( ( singleton @ SV454 )
          = ( unordered_pair @ SV528 @ SV553 ) )
        = $false )
      | ( ( SV528 = SV553 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2814]) ).

thf(2940,plain,
    ! [SV455: $i,SV529: $i] :
      ( ( ( in @ SV529 @ SV455 )
        = $false )
      | ( ( in @ SV455 @ SV529 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2815]) ).

thf(2941,plain,
    ! [SV535: $i,SV465: $i] :
      ( ( ( empty @ ( cartesian_product2 @ SV465 @ SV535 ) )
        = $false )
      | ( ( empty @ SV535 )
        = $true )
      | ( ( empty @ SV465 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2818]) ).

thf(2942,plain,
    ! [SV471: $i,SV538: $i] :
      ( ( ( empty @ SV538 )
        = $true )
      | ( ( in @ SV471 @ SV538 )
        = $true )
      | ( ( element @ SV471 @ SV538 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2821]) ).

thf(2943,plain,
    ! [SV472: $i,SV556: $i,SV539: $i] :
      ( ( ( ~ ( element @ SV539 @ ( powerset @ SV556 ) ) )
        = $true )
      | ( ( ~ ( in @ SV472 @ SV539 ) )
        = $true )
      | ( ( element @ SV472 @ SV556 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2822]) ).

thf(2944,plain,
    ! [SV473: $i,SV557: $i,SV540: $i] :
      ( ( ( ~ ( element @ SV540 @ ( powerset @ SV557 ) ) )
        = $true )
      | ( ( ~ ( in @ SV473 @ SV540 ) )
        = $true )
      | ( ( ~ ( empty @ SV557 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2823]) ).

thf(2945,plain,
    ! [SV541: $i,SV474: $i] :
      ( ( ( in @ SV474 @ SV541 )
        = $false )
      | ( ( empty @ SV541 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2824]) ).

thf(2946,plain,
    ! [SV542: $i,SV475: $i] :
      ( ( ( empty @ SV475 )
        = $false )
      | ( ( SV475 = SV542 )
        = $true )
      | ( ( ~ ( empty @ SV542 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2825]) ).

thf(2947,plain,
    ! [SV613: $i,SV476: $i] :
      ( ( ! [SY997: $i] :
            ( ~ ( relation @ SY997 )
            | ~ ( in @ ( ordered_pair @ SV476 @ SV613 ) @ SY997 )
            | ( in @ SV476 @ ( relation_field @ SY997 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2826]) ).

thf(2948,plain,
    ! [SV614: $i,SV476: $i] :
      ( ( ! [SY998: $i] :
            ( ~ ( relation @ SY998 )
            | ~ ( in @ ( ordered_pair @ SV476 @ SV614 ) @ SY998 )
            | ( in @ SV614 @ ( relation_field @ SY998 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2827]) ).

thf(2949,plain,
    ! [SV477: $i,SV564: $i] :
      ( ( ( ~ ( relation @ SV564 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY942: $i] :
                    ( ~ ( relation @ SY942 )
                    | ~ ( ~ ( ! [SY943: $i] :
                                ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ SY943 ) @ SV477 )
                                | ~ ( in @ ( ordered_pair @ SY943 @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                            | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) )
                        | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) ) @ SV477 )
                                | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                            | ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) ) )
                    | ( SY942
                      = ( relation_composition @ SV477 @ SV564 ) ) )
              | ~ ! [SY944: $i] :
                    ( ~ ( relation @ SY944 )
                    | ( SY944
                     != ( relation_composition @ SV477 @ SV564 ) )
                    | ~ ( ~ ! [SY945: $i,SY946: $i] :
                              ( ! [SY947: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY945 @ SY947 ) @ SV477 )
                                  | ~ ( in @ ( ordered_pair @ SY947 @ SY946 ) @ SV564 ) )
                              | ( in @ ( ordered_pair @ SY945 @ SY946 ) @ SY944 ) )
                        | ~ ! [SY948: $i,SY949: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY948 @ SY949 ) @ SY944 )
                              | ~ ( ~ ( in @ ( ordered_pair @ SY948 @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) ) @ SV477 )
                                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) @ SY949 ) @ SV564 ) ) ) ) ) ) )
        = $true )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2828]) ).

thf(2950,plain,
    ! [SV478: $i,SV615: $i] :
      ( ( ~ ( subset @ SV615 @ ( sK2_B @ SV478 ) )
        | ( are_equipotent @ SV615 @ ( sK2_B @ SV478 ) )
        | ( in @ SV615 @ ( sK2_B @ SV478 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2829]) ).

thf(2951,plain,
    ! [SV478: $i] :
      ( ( ~ ! [SY810: $i] :
              ( ~ ( ~ ! [SY811: $i] :
                        ( ~ ( subset @ SY811 @ SY810 )
                        | ( in @ SY811 @ ( sK3_SY300 @ SY810 @ SV478 ) ) )
                  | ~ ( in @ ( sK3_SY300 @ SY810 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
              | ~ ( in @ SY810 @ ( sK2_B @ SV478 ) ) )
        | ~ ~ ( ~ ! [SY812: $i,SY813: $i] :
                    ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
                    | ~ ( subset @ SY813 @ SY812 )
                    | ( in @ SY813 @ ( sK2_B @ SV478 ) ) )
              | ~ ( in @ SV478 @ ( sK2_B @ SV478 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2830]) ).

thf(2952,plain,
    ! [SV616: $i,SV479: $i] :
      ( ( ~ ( subset @ SV479 @ SV616 )
        | ! [SY999: $i] : ( subset @ ( cartesian_product2 @ SV479 @ SY999 ) @ ( cartesian_product2 @ SV616 @ SY999 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2831]) ).

thf(2953,plain,
    ! [SV617: $i,SV479: $i] :
      ( ( ~ ( subset @ SV479 @ SV617 )
        | ! [SY1000: $i] : ( subset @ ( cartesian_product2 @ SY1000 @ SV479 ) @ ( cartesian_product2 @ SY1000 @ SV617 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2832]) ).

thf(2954,plain,
    ! [SV618: $i,SV565: $i] :
      ( ( ~ ( subset @ SV565 @ ( singleton @ SV618 ) )
        | ( SV565 = empty_set )
        | ( SV565
          = ( singleton @ SV618 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2833]) ).

thf(2955,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2834]) ).

thf(2956,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2834]) ).

thf(2957,plain,
    ! [SV543: $i,SV480: $i] :
      ( ( ! [SY925: $i] :
            ( ! [SY926: $i] :
                ( ( ordered_pair @ SV480 @ SV543 )
               != ( ordered_pair @ SY925 @ SY926 ) )
            | ( SV480 = SY925 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2835]) ).

thf(2958,plain,
    ! [SV543: $i,SV480: $i] :
      ( ( ! [SY927: $i,SY928: $i] :
            ( ( ( ordered_pair @ SV480 @ SV543 )
             != ( ordered_pair @ SY927 @ SY928 ) )
            | ( SV543 = SY928 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2836]) ).

thf(2959,plain,
    ! [SV619: $i,SV566: $i] :
      ( ( ( ( set_difference @ SV566 @ SV619 )
         != empty_set )
        | ( subset @ SV566 @ SV619 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2837]) ).

thf(2960,plain,
    ! [SV620: $i,SV567: $i] :
      ( ( ~ ( subset @ SV567 @ SV620 )
        | ( ( set_difference @ SV567 @ SV620 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2838]) ).

thf(2961,plain,
    ! [SV481: $i] :
      ( ( ( ~ ! [SY823: $i] :
                ( ~ ( relation @ SY823 )
                | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                        | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                        | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) ) )
                | ( SY823
                  = ( relation_inverse @ SV481 ) ) ) )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2839]) ).

thf(2962,plain,
    ! [SV481: $i] :
      ( ( ( ~ ! [SY824: $i] :
                ( ~ ( relation @ SY824 )
                | ( SY824
                 != ( relation_inverse @ SV481 ) )
                | ~ ( ~ ! [SY825: $i,SY826: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY825 @ SY826 ) @ SY824 )
                          | ( in @ ( ordered_pair @ SY826 @ SY825 ) @ SV481 ) )
                    | ~ ! [SY827: $i,SY828: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY828 @ SY827 ) @ SV481 )
                          | ( in @ ( ordered_pair @ SY827 @ SY828 ) @ SY824 ) ) ) ) )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2839]) ).

thf(2963,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ! [SY929: $i,SY930: $i] :
            ( ~ ( in @ SV482 @ SY929 )
            | ~ ( in @ SV544 @ SY930 )
            | ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY929 @ SY930 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2840]) ).

thf(2964,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ~ ( ~ ! [SY931: $i] :
                  ( ! [SY932: $i] :
                      ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY931 @ SY932 ) )
                  | ( in @ SV482 @ SY931 ) )
            | ~ ! [SY933: $i,SY934: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY933 @ SY934 ) )
                  | ( in @ SV544 @ SY934 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2841]) ).

thf(2965,plain,
    ! [SV621: $i,SV568: $i] :
      ( ( ( ( set_intersection2 @ SV568 @ SV621 )
         != empty_set )
        | ( disjoint @ SV568 @ SV621 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2842]) ).

thf(2966,plain,
    ! [SV622: $i,SV569: $i] :
      ( ( ~ ( disjoint @ SV569 @ SV622 )
        | ( ( set_intersection2 @ SV569 @ SV622 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2843]) ).

thf(2967,plain,
    ! [SV623: $i,SV570: $i] :
      ( ( ~ ( subset @ SV570 @ SV623 )
        | ~ ( subset @ SV623 @ SV570 )
        | ( SV570 = SV623 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2844]) ).

thf(2968,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2845]) ).

thf(2969,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2845]) ).

thf(2970,plain,
    ! [SV624: $i,SV571: $i] :
      ( ( ( ( set_difference @ SV571 @ ( singleton @ SV624 ) )
         != SV571 )
        | ~ ( in @ SV624 @ SV571 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2846]) ).

thf(2971,plain,
    ! [SV572: $i,SV625: $i] :
      ( ( ( in @ SV625 @ SV572 )
        | ( ( set_difference @ SV572 @ ( singleton @ SV625 ) )
          = SV572 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2847]) ).

thf(2972,plain,
    ! [SV483: $i,SV545: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV483 ) )
        = $false )
      | ( ( element @ SV483 @ ( powerset @ SV545 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2848]) ).

thf(2973,plain,
    ! [SV483: $i,SV545: $i] :
      ( ( ( ~ ~ ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV545 ) )
        = $false )
      | ( ( element @ SV483 @ ( powerset @ SV545 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2848]) ).

thf(2974,plain,
    ! [SV484: $i] :
      ( ( ( ~ ! [SY837: $i] :
                ( ~ ( relation @ SY837 )
                | ~ ( subset @ SV484 @ SY837 )
                | ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SY837 ) ) ) )
        = $false )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2849]) ).

thf(2975,plain,
    ! [SV484: $i] :
      ( ( ( ~ ! [SY838: $i] :
                ( ~ ( relation @ SY838 )
                | ~ ( subset @ SV484 @ SY838 )
                | ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SY838 ) ) ) )
        = $false )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2849]) ).

thf(2976,plain,
    ! [SV573: $i,SV626: $i] :
      ( ( ~ ( ~ ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV573 )
            | ~ ~ ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV626 ) )
        | ( subset @ SV573 @ SV626 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2850]) ).

thf(2977,plain,
    ! [SV627: $i,SV574: $i] :
      ( ( ~ ( subset @ SV574 @ SV627 )
        | ! [SY1001: $i] :
            ( ~ ( in @ SY1001 @ SV574 )
            | ( in @ SY1001 @ SV627 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2851]) ).

thf(2978,plain,
    ! [SV485: $i,SV628: $i] :
      ( ( ! [SY1002: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY1002 @ SV628 @ SV485 ) @ SY1002 )
                          | ~ ( in @ ( sK26_D @ SY1002 @ SV628 @ SV485 ) @ SV485 ) )
                      | ~ ( ~ ( in @ ( sK26_D @ SY1002 @ SV628 @ SV485 ) @ SY1002 )
                          | ~ ( in @ ( sK26_D @ SY1002 @ SV628 @ SV485 ) @ SV628 ) ) )
                | ~ ( ( in @ ( sK26_D @ SY1002 @ SV628 @ SV485 ) @ SY1002 )
                    | ( in @ ( sK26_D @ SY1002 @ SV628 @ SV485 ) @ SV485 )
                    | ( in @ ( sK26_D @ SY1002 @ SV628 @ SV485 ) @ SV628 ) ) )
            | ( SY1002
              = ( set_union2 @ SV485 @ SV628 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2852]) ).

thf(2979,plain,
    ! [SV629: $i,SV485: $i] :
      ( ( ! [SY1003: $i] :
            ( ( SY1003
             != ( set_union2 @ SV485 @ SV629 ) )
            | ~ ( ~ ! [SY1004: $i] :
                      ( ~ ( in @ SY1004 @ SY1003 )
                      | ( in @ SY1004 @ SV485 )
                      | ( in @ SY1004 @ SV629 ) )
                | ~ ~ ( ~ ! [SY844: $i] :
                            ( ~ ( in @ SY844 @ SV485 )
                            | ( in @ SY844 @ SY1003 ) )
                      | ~ ! [SY1006: $i] :
                            ( ~ ( in @ SY1006 @ SV629 )
                            | ( in @ SY1006 @ SY1003 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2853]) ).

thf(2980,plain,
    ! [SV630: $i,SV575: $i] :
      ( ( ~ ( in @ SV575 @ SV630 )
        | ( subset @ ( singleton @ SV575 ) @ SV630 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2854]) ).

thf(2981,plain,
    ! [SV631: $i,SV576: $i] :
      ( ( ~ ( subset @ ( singleton @ SV576 ) @ SV631 )
        | ( in @ SV576 @ SV631 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2855]) ).

thf(2982,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2856]) ).

thf(2983,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2856]) ).

thf(2984,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2857]) ).

thf(2985,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2857]) ).

thf(2986,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ~ ( ~ ( ! [SY1007: $i] :
                    ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SY1007 )
                    | ~ ( in @ SY1007 @ SV577 ) )
                | ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
            | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ ( sK18_SY312 @ SV632 @ SV577 ) )
                    | ~ ( in @ ( sK18_SY312 @ SV632 @ SV577 ) @ SV577 ) )
                | ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) ) )
        | ( SV632
          = ( union @ SV577 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2858]) ).

thf(2987,plain,
    ! [SV578: $i,SV633: $i] :
      ( ( ( SV633
         != ( union @ SV578 ) )
        | ~ ( ~ ! [SY1008: $i] :
                  ( ! [SY967: $i] :
                      ( ~ ( in @ SY1008 @ SY967 )
                      | ~ ( in @ SY967 @ SV578 ) )
                  | ( in @ SY1008 @ SV633 ) )
            | ~ ! [SY1010: $i] :
                  ( ~ ( in @ SY1010 @ SV633 )
                  | ~ ( ~ ( in @ SY1010 @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) )
                      | ~ ( in @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) @ SV578 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2859]) ).

thf(2988,plain,
    ! [SV486: $i,SV634: $i] :
      ( ( ! [SY1011: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY1011 @ SV634 @ SV486 ) @ SV486 )
                    | ~ ( in @ ( sK19_D @ SY1011 @ SV634 @ SV486 ) @ SV634 )
                    | ~ ( in @ ( sK19_D @ SY1011 @ SV634 @ SV486 ) @ SY1011 ) )
                | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY1011 @ SV634 @ SV486 ) @ SV486 )
                          | ( in @ ( sK19_D @ SY1011 @ SV634 @ SV486 ) @ SY1011 ) )
                      | ~ ( ( in @ ( sK19_D @ SY1011 @ SV634 @ SV486 ) @ SV634 )
                          | ( in @ ( sK19_D @ SY1011 @ SV634 @ SV486 ) @ SY1011 ) ) ) )
            | ( SY1011
              = ( set_intersection2 @ SV486 @ SV634 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2860]) ).

thf(2989,plain,
    ! [SV635: $i,SV486: $i] :
      ( ( ! [SY1012: $i] :
            ( ( SY1012
             != ( set_intersection2 @ SV486 @ SV635 ) )
            | ~ ( ~ ! [SY1013: $i] :
                      ( ~ ( in @ SY1013 @ SV486 )
                      | ~ ( in @ SY1013 @ SV635 )
                      | ( in @ SY1013 @ SY1012 ) )
                | ~ ~ ( ~ ! [SY851: $i] :
                            ( ~ ( in @ SY851 @ SY1012 )
                            | ( in @ SY851 @ SV486 ) )
                      | ~ ! [SY1015: $i] :
                            ( ~ ( in @ SY1015 @ SY1012 )
                            | ( in @ SY1015 @ SV635 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2861]) ).

thf(2990,plain,
    ! [SV579: $i] :
      ( ( ( ~ ( empty @ SV579 ) )
        = $true )
      | ( ( empty @ ( relation_dom @ SV579 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2862]) ).

thf(2991,plain,
    ! [SV580: $i] :
      ( ( ( ~ ( empty @ SV580 ) )
        = $true )
      | ( ( relation @ ( relation_dom @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2863]) ).

thf(2992,plain,
    ! [SV487: $i,SV636: $i] :
      ( ( ~ ( subset @ SV636 @ ( sK32_B @ SV487 ) )
        | ( are_equipotent @ SV636 @ ( sK32_B @ SV487 ) )
        | ( in @ SV636 @ ( sK32_B @ SV487 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2864]) ).

thf(2993,plain,
    ! [SV487: $i] :
      ( ( ~ ! [SY854: $i] :
              ( ~ ( in @ SY854 @ ( sK32_B @ SV487 ) )
              | ( in @ ( powerset @ SY854 ) @ ( sK32_B @ SV487 ) ) )
        | ~ ~ ( ~ ! [SY855: $i,SY856: $i] :
                    ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
                    | ~ ( subset @ SY856 @ SY855 )
                    | ( in @ SY856 @ ( sK32_B @ SV487 ) ) )
              | ~ ( in @ SV487 @ ( sK32_B @ SV487 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2865]) ).

thf(2994,plain,
    ! [SV581: $i] :
      ( ( ( ~ ( empty @ SV581 ) )
        = $true )
      | ( ( empty @ ( relation_rng @ SV581 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2866]) ).

thf(2995,plain,
    ! [SV582: $i] :
      ( ( ( ~ ( empty @ SV582 ) )
        = $true )
      | ( ( relation @ ( relation_rng @ SV582 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2867]) ).

thf(2996,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
                | ~ ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) )
            | ~ ( ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
                | ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) ) )
        | ( SV637
          = ( powerset @ SV583 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2868]) ).

thf(2997,plain,
    ! [SV584: $i,SV638: $i] :
      ( ( ( SV638
         != ( powerset @ SV584 ) )
        | ~ ( ~ ! [SY1016: $i] :
                  ( ~ ( in @ SY1016 @ SV638 )
                  | ( subset @ SY1016 @ SV584 ) )
            | ~ ! [SY1017: $i] :
                  ( ~ ( subset @ SY1017 @ SV584 )
                  | ( in @ SY1017 @ SV638 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2869]) ).

thf(2998,plain,
    ! [SV639: $i,SV585: $i] :
      ( ( ( disjoint @ SV585 @ SV639 )
        | ~ ( ~ ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV585 )
            | ~ ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV639 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2870]) ).

thf(2999,plain,
    ! [SV640: $i,SV586: $i] :
      ( ( ! [SY1018: $i] :
            ( ~ ( in @ SY1018 @ SV586 )
            | ~ ( in @ SY1018 @ SV640 ) )
        | ~ ( disjoint @ SV586 @ SV640 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2871]) ).

thf(3000,plain,
    ! [SV488: $i] :
      ( ( ( ~ ! [SY857: $i] :
                ( ~ ( ~ ( ! [SY858: $i] :
                            ~ ( in @ ( ordered_pair @ SY858 @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                        | ~ ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY857 @ SV488 ) @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                        | ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) ) )
                | ( SY857
                  = ( relation_rng @ SV488 ) ) ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2873]) ).

thf(3001,plain,
    ! [SV488: $i] :
      ( ( ( ~ ! [SY859: $i] :
                ( ( SY859
                 != ( relation_rng @ SV488 ) )
                | ~ ( ~ ! [SY860: $i] :
                          ( ! [SY861: $i] :
                              ~ ( in @ ( ordered_pair @ SY861 @ SY860 ) @ SV488 )
                          | ( in @ SY860 @ SY859 ) )
                    | ~ ! [SY862: $i] :
                          ( ~ ( in @ SY862 @ SY859 )
                          | ( in @ ( ordered_pair @ ( sK36_D @ SY862 @ SY859 @ SV488 ) @ SY862 ) @ SV488 ) ) ) ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2873]) ).

thf(3002,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2874]) ).

thf(3003,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2874]) ).

thf(3004,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2875]) ).

thf(3005,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2875]) ).

thf(3006,plain,
    ! [SV641: $i,SV587: $i] :
      ( ( ~ ( in @ SV587 @ SV641 )
        | ( subset @ ( singleton @ SV587 ) @ SV641 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2878]) ).

thf(3007,plain,
    ! [SV642: $i,SV588: $i] :
      ( ( ~ ( subset @ ( singleton @ SV588 ) @ SV642 )
        | ( in @ SV588 @ SV642 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2879]) ).

thf(3008,plain,
    ! [SV643: $i,SV589: $i] :
      ( ( ~ ( subset @ SV589 @ ( singleton @ SV643 ) )
        | ( SV589 = empty_set )
        | ( SV589
          = ( singleton @ SV643 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2880]) ).

thf(3009,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2881]) ).

thf(3010,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2881]) ).

thf(3011,plain,
    ! [SV590: $i] :
      ( ( ( in @ ( sK42_B @ SV590 ) @ SV590 )
        = $true )
      | ( ( SV590 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2882]) ).

thf(3012,plain,
    ! [SV591: $i] :
      ( ( ( ( SV591 != empty_set ) )
        = $true )
      | ( ( ! [SY979: $i] :
              ~ ( in @ SY979 @ SV591 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2883]) ).

thf(3013,plain,
    ! [SV592: $i] :
      ( ( ( ~ ( relation @ SV592 ) )
        = $true )
      | ( ( ( ( relation_dom @ SV592 )
           != empty_set )
          | ( SV592 = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2884]) ).

thf(3014,plain,
    ! [SV593: $i] :
      ( ( ( ~ ( relation @ SV593 ) )
        = $true )
      | ( ( ( ( relation_rng @ SV593 )
           != empty_set )
          | ( SV593 = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2885]) ).

thf(3015,plain,
    ! [SV594: $i] :
      ( ( ( ~ ( relation @ SV594 ) )
        = $true )
      | ( ( ( relation_rng @ SV594 )
          = ( relation_dom @ ( relation_inverse @ SV594 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2886]) ).

thf(3016,plain,
    ! [SV595: $i] :
      ( ( ( ~ ( relation @ SV595 ) )
        = $true )
      | ( ( ( relation_dom @ SV595 )
          = ( relation_rng @ ( relation_inverse @ SV595 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2887]) ).

thf(3017,plain,
    ! [SV644: $i,SV596: $i] :
      ( ( ( ( set_difference @ SV596 @ SV644 )
         != empty_set )
        | ( subset @ SV596 @ SV644 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2888]) ).

thf(3018,plain,
    ! [SV645: $i,SV597: $i] :
      ( ( ~ ( subset @ SV597 @ SV645 )
        | ( ( set_difference @ SV597 @ SV645 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2889]) ).

thf(3019,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
              | ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) ) )
        = $false )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2890]) ).

thf(3020,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( ~ ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
              | ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) ) )
        = $false )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2890]) ).

thf(3021,plain,
    ! [SV646: $i,SV598: $i] :
      ( ( ~ ( element @ SV598 @ ( powerset @ SV646 ) )
        | ( subset @ SV598 @ SV646 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2891]) ).

thf(3022,plain,
    ! [SV647: $i,SV599: $i] :
      ( ( ~ ( subset @ SV599 @ SV647 )
        | ( element @ SV599 @ ( powerset @ SV647 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2892]) ).

thf(3023,plain,
    ! [SV600: $i] :
      ( ( ( ~ ( ~ ! [SY984: $i,SY985: $i] :
                    ( ( sK48_B @ SV600 )
                   != ( ordered_pair @ SY984 @ SY985 ) )
              | ~ ( in @ ( sK48_B @ SV600 ) @ SV600 ) ) )
        = $true )
      | ( ( relation @ SV600 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2893]) ).

thf(3024,plain,
    ! [SV601: $i] :
      ( ( ( ~ ( relation @ SV601 ) )
        = $true )
      | ( ( ! [SY986: $i] :
              ( ( SY986
                = ( ordered_pair @ ( sK46_C @ SY986 @ SV601 ) @ ( sK47_SY329 @ SY986 @ SV601 ) ) )
              | ~ ( in @ SY986 @ SV601 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2894]) ).

thf(3025,plain,
    ! [SV648: $i,SV491: $i] :
      ( ( ! [SY1019: $i] :
            ( ~ ( in @ SV491 @ SY1019 )
            | ~ ( in @ SV648 @ SY1019 )
            | ( subset @ ( unordered_pair @ SV491 @ SV648 ) @ SY1019 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2895]) ).

thf(3026,plain,
    ! [SV491: $i] :
      ( ( ~ ! [SY866: $i,SY867: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV491 @ SY866 ) @ SY867 )
              | ( in @ SV491 @ SY867 ) )
        | ~ ! [SY868: $i,SY869: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV491 @ SY868 ) @ SY869 )
              | ( in @ SY868 @ SY869 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2896]) ).

thf(3027,plain,
    ! [SV492: $i,SV649: $i] :
      ( ( ! [SY1020: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY1020 @ SV649 @ SV492 ) @ SY1020 )
                          | ( ( sK27_D @ SY1020 @ SV649 @ SV492 )
                           != SV492 ) )
                      | ~ ( ~ ( in @ ( sK27_D @ SY1020 @ SV649 @ SV492 ) @ SY1020 )
                          | ( ( sK27_D @ SY1020 @ SV649 @ SV492 )
                           != SV649 ) ) )
                | ~ ( ( in @ ( sK27_D @ SY1020 @ SV649 @ SV492 ) @ SY1020 )
                    | ( ( sK27_D @ SY1020 @ SV649 @ SV492 )
                      = SV492 )
                    | ( ( sK27_D @ SY1020 @ SV649 @ SV492 )
                      = SV649 ) ) )
            | ( SY1020
              = ( unordered_pair @ SV492 @ SV649 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2897]) ).

thf(3028,plain,
    ! [SV650: $i,SV492: $i] :
      ( ( ! [SY1021: $i] :
            ( ( SY1021
             != ( unordered_pair @ SV492 @ SV650 ) )
            | ~ ( ~ ! [SY1022: $i] :
                      ( ~ ( in @ SY1022 @ SY1021 )
                      | ( SY1022 = SV492 )
                      | ( SY1022 = SV650 ) )
                | ~ ~ ( ~ ! [SY875: $i] :
                            ( ( SY875 != SV492 )
                            | ( in @ SY875 @ SY1021 ) )
                      | ~ ! [SY1024: $i] :
                            ( ( SY1024 != SV650 )
                            | ( in @ SY1024 @ SY1021 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2898]) ).

thf(3029,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ! [SY935: $i,SY936: $i] :
            ( ~ ( in @ SV493 @ SY935 )
            | ~ ( in @ SV547 @ SY936 )
            | ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY935 @ SY936 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2899]) ).

thf(3030,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ~ ( ~ ! [SY937: $i] :
                  ( ! [SY938: $i] :
                      ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY937 @ SY938 ) )
                  | ( in @ SV493 @ SY937 ) )
            | ~ ! [SY939: $i,SY940: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY939 @ SY940 ) )
                  | ( in @ SV547 @ SY940 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2900]) ).

thf(3031,plain,
    ! [SV651: $i,SV494: $i] :
      ( ( ! [SY1025: $i] :
            ( ~ ( relation @ SY1025 )
            | ~ ( in @ ( ordered_pair @ SV494 @ SV651 ) @ SY1025 )
            | ( in @ SV494 @ ( relation_dom @ SY1025 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2901]) ).

thf(3032,plain,
    ! [SV652: $i,SV494: $i] :
      ( ( ! [SY1026: $i] :
            ( ~ ( relation @ SY1026 )
            | ~ ( in @ ( ordered_pair @ SV494 @ SV652 ) @ SY1026 )
            | ( in @ SV652 @ ( relation_rng @ SY1026 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2902]) ).

thf(3033,plain,
    ! [SV653: $i,SV602: $i] :
      ( ( ( disjoint @ SV602 @ SV653 )
        | ( in @ ( sK30_C @ SV653 @ SV602 ) @ ( set_intersection2 @ SV602 @ SV653 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2904]) ).

thf(3034,plain,
    ! [SV654: $i,SV603: $i] :
      ( ( ! [SY1027: $i] :
            ~ ( in @ SY1027 @ ( set_intersection2 @ SV603 @ SV654 ) )
        | ~ ( disjoint @ SV603 @ SV654 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2905]) ).

thf(3035,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ~ ( ~ ( ( ( sK29_C @ SV655 @ SV604 )
                 != SV604 )
                | ~ ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) )
            | ~ ( ( ( sK29_C @ SV655 @ SV604 )
                  = SV604 )
                | ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) ) )
        | ( SV655
          = ( singleton @ SV604 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2906]) ).

thf(3036,plain,
    ! [SV605: $i,SV656: $i] :
      ( ( ( SV656
         != ( singleton @ SV605 ) )
        | ~ ( ~ ! [SY1028: $i] :
                  ( ( SY1028 != SV605 )
                  | ( in @ SY1028 @ SV656 ) )
            | ~ ! [SY1029: $i] :
                  ( ~ ( in @ SY1029 @ SV656 )
                  | ( SY1029 = SV605 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2907]) ).

thf(3037,plain,
    ! [SV657: $i,SV606: $i] :
      ( ( ( SV606 = SV657 )
        | ~ ( subset @ SV606 @ SV657 )
        | ( proper_subset @ SV606 @ SV657 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2908]) ).

thf(3038,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2909]) ).

thf(3039,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2909]) ).

thf(3040,plain,
    ! [SV658: $i,SV495: $i] :
      ( ( ! [SY1030: $i] :
            ( ~ ( ~ ( ! [SY1031: $i,SY1032: $i] :
                        ( ~ ( in @ SY1031 @ SV495 )
                        | ~ ( in @ SY1032 @ SV658 )
                        | ( ( sK23_D @ SY1030 @ SV658 @ SV495 )
                         != ( ordered_pair @ SY1031 @ SY1032 ) ) )
                    | ~ ( in @ ( sK23_D @ SY1030 @ SV658 @ SV495 ) @ SY1030 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SY1030 @ SV658 @ SV495 ) @ SV495 )
                              | ~ ( in @ ( sK25_SY318 @ SY1030 @ SV658 @ SV495 ) @ SV658 ) )
                        | ( ( sK23_D @ SY1030 @ SV658 @ SV495 )
                         != ( ordered_pair @ ( sK24_SY316 @ SY1030 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SY1030 @ SV658 @ SV495 ) ) ) )
                    | ( in @ ( sK23_D @ SY1030 @ SV658 @ SV495 ) @ SY1030 ) ) )
            | ( SY1030
              = ( cartesian_product2 @ SV495 @ SV658 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2910]) ).

thf(3041,plain,
    ! [SV659: $i,SV495: $i] :
      ( ( ! [SY1033: $i] :
            ( ( SY1033
             != ( cartesian_product2 @ SV495 @ SV659 ) )
            | ~ ( ~ ! [SY1034: $i] :
                      ( ! [SY1035: $i,SY1036: $i] :
                          ( ~ ( in @ SY1035 @ SV495 )
                          | ~ ( in @ SY1036 @ SV659 )
                          | ( SY1034
                           != ( ordered_pair @ SY1035 @ SY1036 ) ) )
                      | ( in @ SY1034 @ SY1033 ) )
                | ~ ! [SY1037: $i] :
                      ( ~ ( in @ SY1037 @ SY1033 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY1037 @ SY1033 @ SV659 @ SV495 ) @ SV495 )
                                | ~ ( in @ ( sK22_SY313 @ SY1037 @ SY1033 @ SV659 @ SV495 ) @ SV659 ) )
                          | ( SY1037
                           != ( ordered_pair @ ( sK21_E @ SY1037 @ SY1033 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SY1037 @ SY1033 @ SV659 @ SV495 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2911]) ).

thf(3042,plain,
    ! [SV496: $i] :
      ( ( ( element @ ( sK8_B @ SV496 ) @ ( powerset @ SV496 ) )
        = $true )
      | ( ( empty @ SV496 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2912]) ).

thf(3043,plain,
    ! [SV496: $i] :
      ( ( ( ~ ( empty @ ( sK8_B @ SV496 ) ) )
        = $true )
      | ( ( empty @ SV496 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2913]) ).

thf(3044,plain,
    ! [SV660: $i,SV607: $i] :
      ( ( ( ( set_difference @ SV607 @ SV660 )
         != SV607 )
        | ( disjoint @ SV607 @ SV660 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2914]) ).

thf(3045,plain,
    ! [SV661: $i,SV608: $i] :
      ( ( ~ ( disjoint @ SV608 @ SV661 )
        | ( ( set_difference @ SV608 @ SV661 )
          = SV608 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2915]) ).

thf(3046,plain,
    ! [SV497: $i,SV662: $i] :
      ( ( ! [SY1038: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY1038 @ SV662 @ SV497 ) @ SV497 )
                    | ( in @ ( sK15_D @ SY1038 @ SV662 @ SV497 ) @ SV662 )
                    | ~ ( in @ ( sK15_D @ SY1038 @ SV662 @ SV497 ) @ SY1038 ) )
                | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY1038 @ SV662 @ SV497 ) @ SV497 )
                          | ( in @ ( sK15_D @ SY1038 @ SV662 @ SV497 ) @ SY1038 ) )
                      | ~ ( ~ ( in @ ( sK15_D @ SY1038 @ SV662 @ SV497 ) @ SV662 )
                          | ( in @ ( sK15_D @ SY1038 @ SV662 @ SV497 ) @ SY1038 ) ) ) )
            | ( SY1038
              = ( set_difference @ SV497 @ SV662 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2916]) ).

thf(3047,plain,
    ! [SV663: $i,SV497: $i] :
      ( ( ! [SY1039: $i] :
            ( ( SY1039
             != ( set_difference @ SV497 @ SV663 ) )
            | ~ ( ~ ! [SY1040: $i] :
                      ( ~ ( in @ SY1040 @ SV497 )
                      | ( in @ SY1040 @ SV663 )
                      | ( in @ SY1040 @ SY1039 ) )
                | ~ ~ ( ~ ! [SY903: $i] :
                            ( ~ ( in @ SY903 @ SY1039 )
                            | ( in @ SY903 @ SV497 ) )
                      | ~ ! [SY1042: $i] :
                            ( ~ ( in @ SY1042 @ SY1039 )
                            | ~ ( in @ SY1042 @ SV663 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2917]) ).

thf(3048,plain,
    ! [SV498: $i] :
      ( ( ( ~ ! [SY905: $i] :
                ( ~ ( ~ ( ! [SY906: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ SY906 ) @ SV498 )
                        | ~ ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ ( sK41_SY326 @ SY905 @ SV498 ) ) @ SV498 )
                        | ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) ) )
                | ( SY905
                  = ( relation_dom @ SV498 ) ) ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2918]) ).

thf(3049,plain,
    ! [SV498: $i] :
      ( ( ( ~ ! [SY907: $i] :
                ( ( SY907
                 != ( relation_dom @ SV498 ) )
                | ~ ( ~ ! [SY908: $i] :
                          ( ! [SY909: $i] :
                              ~ ( in @ ( ordered_pair @ SY908 @ SY909 ) @ SV498 )
                          | ( in @ SY908 @ SY907 ) )
                    | ~ ! [SY910: $i] :
                          ( ~ ( in @ SY910 @ SY907 )
                          | ( in @ ( ordered_pair @ SY910 @ ( sK39_D @ SY910 @ SY907 @ SV498 ) ) @ SV498 ) ) ) ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2918]) ).

thf(3050,plain,
    ! [SV407: $i,SV558: $i] :
      ( ( ( relation @ SV558 )
        = $false )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV407 @ SV558 ) ) @ ( relation_dom @ SV407 ) )
        = $true )
      | ( ( relation @ SV407 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2919]) ).

thf(3051,plain,
    ! [SV408: $i,SV559: $i] :
      ( ( ( relation @ SV559 )
        = $false )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV408 @ SV559 ) ) @ ( relation_rng @ SV559 ) )
        = $true )
      | ( ( relation @ SV408 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2920]) ).

thf(3052,plain,
    ! [SV409: $i,SV560: $i] :
      ( ( ( relation @ SV560 )
        = $false )
      | ( ( ~ ( subset @ ( relation_rng @ SV409 ) @ ( relation_dom @ SV560 ) )
          | ( ( relation_dom @ ( relation_composition @ SV409 @ SV560 ) )
            = ( relation_dom @ SV409 ) ) )
        = $true )
      | ( ( relation @ SV409 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2921]) ).

thf(3053,plain,
    ! [SV410: $i,SV561: $i] :
      ( ( ( relation @ SV561 )
        = $false )
      | ( ( ~ ( subset @ ( relation_dom @ SV410 ) @ ( relation_rng @ SV561 ) )
          | ( ( relation_rng @ ( relation_composition @ SV561 @ SV410 ) )
            = ( relation_rng @ SV410 ) ) )
        = $true )
      | ( ( relation @ SV410 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2922]) ).

thf(3054,plain,
    ! [SV415: $i,SV499: $i] :
      ( ( ( relation @ SV499 )
        = $false )
      | ( ( relation @ SV415 )
        = $false )
      | ( ( relation @ ( relation_composition @ SV415 @ SV499 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2923]) ).

thf(3055,plain,
    ! [SV416: $i,SV500: $i] :
      ( ( ( relation @ SV500 )
        = $false )
      | ( ( relation @ SV416 )
        = $false )
      | ( ( relation @ ( set_union2 @ SV416 @ SV500 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2924]) ).

thf(3056,plain,
    ! [SV428: $i,SV504: $i,SV609: $i] :
      ( ( ( ~ ( in @ SV609 @ SV504 ) )
        = $true )
      | ( ( in @ SV609 @ SV428 )
        = $true )
      | ( ( element @ SV504 @ ( powerset @ SV428 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2928]) ).

thf(3057,plain,
    ! [SV505: $i,SV429: $i,SV610: $i] :
      ( ( ( in @ SV610 @ SV429 )
        = $true )
      | ( ( subset @ SV429 @ ( set_difference @ SV505 @ ( singleton @ SV610 ) ) )
        = $true )
      | ( ( subset @ SV429 @ SV505 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2929]) ).

thf(3058,plain,
    ! [SV562: $i,SV548: $i,SV507: $i,SV431: $i] :
      ( ( ( ~ ( subset @ SV431 @ SV507 ) )
        = $true )
      | ( ( ~ ( subset @ SV548 @ SV562 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV431 @ SV548 ) @ ( cartesian_product2 @ SV507 @ SV562 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2930]) ).

thf(3059,plain,
    ! [SV549: $i,SV510: $i,SV434: $i] :
      ( ( ( subset @ SV434 @ SV510 )
        = $false )
      | ( ( ~ ( subset @ SV434 @ SV549 ) )
        = $true )
      | ( ( subset @ SV434 @ ( set_intersection2 @ SV510 @ SV549 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2931]) ).

thf(3060,plain,
    ! [SV550: $i,SV511: $i,SV435: $i] :
      ( ( ( subset @ SV435 @ SV511 )
        = $false )
      | ( ( ~ ( subset @ SV511 @ SV550 ) )
        = $true )
      | ( ( subset @ SV435 @ SV550 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2932]) ).

thf(3061,plain,
    ! [SV446: $i,SV551: $i,SV522: $i] :
      ( ( ( disjoint @ SV522 @ SV551 )
        = $false )
      | ( ( ~ ( subset @ SV446 @ SV522 ) )
        = $true )
      | ( ( disjoint @ SV446 @ SV551 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2936]) ).

thf(3062,plain,
    ! [SV552: $i,SV525: $i,SV450: $i] :
      ( ( ( subset @ SV450 @ SV525 )
        = $false )
      | ( ( ~ ( subset @ SV552 @ SV525 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV450 @ SV552 ) @ SV525 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2937]) ).

thf(3063,plain,
    ! [SV472: $i,SV556: $i,SV539: $i] :
      ( ( ( element @ SV539 @ ( powerset @ SV556 ) )
        = $false )
      | ( ( ~ ( in @ SV472 @ SV539 ) )
        = $true )
      | ( ( element @ SV472 @ SV556 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2943]) ).

thf(3064,plain,
    ! [SV473: $i,SV557: $i,SV540: $i] :
      ( ( ( element @ SV540 @ ( powerset @ SV557 ) )
        = $false )
      | ( ( ~ ( in @ SV473 @ SV540 ) )
        = $true )
      | ( ( ~ ( empty @ SV557 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2944]) ).

thf(3065,plain,
    ! [SV475: $i,SV542: $i] :
      ( ( ( empty @ SV542 )
        = $false )
      | ( ( SV475 = SV542 )
        = $true )
      | ( ( empty @ SV475 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2946]) ).

thf(3066,plain,
    ! [SV613: $i,SV476: $i,SV664: $i] :
      ( ( ~ ( relation @ SV664 )
        | ~ ( in @ ( ordered_pair @ SV476 @ SV613 ) @ SV664 )
        | ( in @ SV476 @ ( relation_field @ SV664 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2947]) ).

thf(3067,plain,
    ! [SV614: $i,SV476: $i,SV665: $i] :
      ( ( ~ ( relation @ SV665 )
        | ~ ( in @ ( ordered_pair @ SV476 @ SV614 ) @ SV665 )
        | ( in @ SV614 @ ( relation_field @ SV665 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2948]) ).

thf(3068,plain,
    ! [SV477: $i,SV564: $i] :
      ( ( ( relation @ SV564 )
        = $false )
      | ( ( ~ ( ~ ! [SY942: $i] :
                    ( ~ ( relation @ SY942 )
                    | ~ ( ~ ( ! [SY943: $i] :
                                ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ SY943 ) @ SV477 )
                                | ~ ( in @ ( ordered_pair @ SY943 @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                            | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) )
                        | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) ) @ SV477 )
                                | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                            | ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) ) )
                    | ( SY942
                      = ( relation_composition @ SV477 @ SV564 ) ) )
              | ~ ! [SY944: $i] :
                    ( ~ ( relation @ SY944 )
                    | ( SY944
                     != ( relation_composition @ SV477 @ SV564 ) )
                    | ~ ( ~ ! [SY945: $i,SY946: $i] :
                              ( ! [SY947: $i] :
                                  ( ~ ( in @ ( ordered_pair @ SY945 @ SY947 ) @ SV477 )
                                  | ~ ( in @ ( ordered_pair @ SY947 @ SY946 ) @ SV564 ) )
                              | ( in @ ( ordered_pair @ SY945 @ SY946 ) @ SY944 ) )
                        | ~ ! [SY948: $i,SY949: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY948 @ SY949 ) @ SY944 )
                              | ~ ( ~ ( in @ ( ordered_pair @ SY948 @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) ) @ SV477 )
                                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) @ SY949 ) @ SV564 ) ) ) ) ) ) )
        = $true )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2949]) ).

thf(3069,plain,
    ! [SV478: $i,SV615: $i] :
      ( ( ( ~ ( subset @ SV615 @ ( sK2_B @ SV478 ) )
          | ( are_equipotent @ SV615 @ ( sK2_B @ SV478 ) ) )
        = $true )
      | ( ( in @ SV615 @ ( sK2_B @ SV478 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2950]) ).

thf(3070,plain,
    ! [SV478: $i] :
      ( ( ~ ! [SY810: $i] :
              ( ~ ( ~ ! [SY811: $i] :
                        ( ~ ( subset @ SY811 @ SY810 )
                        | ( in @ SY811 @ ( sK3_SY300 @ SY810 @ SV478 ) ) )
                  | ~ ( in @ ( sK3_SY300 @ SY810 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
              | ~ ( in @ SY810 @ ( sK2_B @ SV478 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2951]) ).

thf(3071,plain,
    ! [SV478: $i] :
      ( ( ~ ~ ( ~ ! [SY812: $i,SY813: $i] :
                    ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
                    | ~ ( subset @ SY813 @ SY812 )
                    | ( in @ SY813 @ ( sK2_B @ SV478 ) ) )
              | ~ ( in @ SV478 @ ( sK2_B @ SV478 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2951]) ).

thf(3072,plain,
    ! [SV616: $i,SV479: $i] :
      ( ( ( ~ ( subset @ SV479 @ SV616 ) )
        = $true )
      | ( ( ! [SY999: $i] : ( subset @ ( cartesian_product2 @ SV479 @ SY999 ) @ ( cartesian_product2 @ SV616 @ SY999 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2952]) ).

thf(3073,plain,
    ! [SV617: $i,SV479: $i] :
      ( ( ( ~ ( subset @ SV479 @ SV617 ) )
        = $true )
      | ( ( ! [SY1000: $i] : ( subset @ ( cartesian_product2 @ SY1000 @ SV479 ) @ ( cartesian_product2 @ SY1000 @ SV617 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2953]) ).

thf(3074,plain,
    ! [SV618: $i,SV565: $i] :
      ( ( ( ~ ( subset @ SV565 @ ( singleton @ SV618 ) ) )
        = $true )
      | ( ( ( SV565 = empty_set )
          | ( SV565
            = ( singleton @ SV618 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2954]) ).

thf(3075,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2955]) ).

thf(3076,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2956]) ).

thf(3077,plain,
    ! [SV666: $i,SV543: $i,SV480: $i] :
      ( ( ! [SY1043: $i] :
            ( ( ordered_pair @ SV480 @ SV543 )
           != ( ordered_pair @ SV666 @ SY1043 ) )
        | ( SV480 = SV666 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2957]) ).

thf(3078,plain,
    ! [SV667: $i,SV543: $i,SV480: $i] :
      ( ( ! [SY1044: $i] :
            ( ( ( ordered_pair @ SV480 @ SV543 )
             != ( ordered_pair @ SV667 @ SY1044 ) )
            | ( SV543 = SY1044 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2958]) ).

thf(3079,plain,
    ! [SV619: $i,SV566: $i] :
      ( ( ( ( ( set_difference @ SV566 @ SV619 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV566 @ SV619 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2959]) ).

thf(3080,plain,
    ! [SV620: $i,SV567: $i] :
      ( ( ( ~ ( subset @ SV567 @ SV620 ) )
        = $true )
      | ( ( ( set_difference @ SV567 @ SV620 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2960]) ).

thf(3081,plain,
    ! [SV481: $i] :
      ( ( ( ! [SY823: $i] :
              ( ~ ( relation @ SY823 )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                      | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SY823 @ SV481 ) @ ( sK14_SY310 @ SY823 @ SV481 ) ) @ SY823 )
                      | ( in @ ( ordered_pair @ ( sK14_SY310 @ SY823 @ SV481 ) @ ( sK13_C @ SY823 @ SV481 ) ) @ SV481 ) ) )
              | ( SY823
                = ( relation_inverse @ SV481 ) ) ) )
        = $true )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2961]) ).

thf(3082,plain,
    ! [SV481: $i] :
      ( ( ( ! [SY824: $i] :
              ( ~ ( relation @ SY824 )
              | ( SY824
               != ( relation_inverse @ SV481 ) )
              | ~ ( ~ ! [SY825: $i,SY826: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY825 @ SY826 ) @ SY824 )
                        | ( in @ ( ordered_pair @ SY826 @ SY825 ) @ SV481 ) )
                  | ~ ! [SY827: $i,SY828: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY828 @ SY827 ) @ SV481 )
                        | ( in @ ( ordered_pair @ SY827 @ SY828 ) @ SY824 ) ) ) ) )
        = $true )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2962]) ).

thf(3083,plain,
    ! [SV544: $i,SV668: $i,SV482: $i] :
      ( ( ! [SY1045: $i] :
            ( ~ ( in @ SV482 @ SV668 )
            | ~ ( in @ SV544 @ SY1045 )
            | ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV668 @ SY1045 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2963]) ).

thf(3084,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ~ ! [SY931: $i] :
              ( ! [SY932: $i] :
                  ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY931 @ SY932 ) )
              | ( in @ SV482 @ SY931 ) )
        | ~ ! [SY933: $i,SY934: $i] :
              ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY933 @ SY934 ) )
              | ( in @ SV544 @ SY934 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2964]) ).

thf(3085,plain,
    ! [SV621: $i,SV568: $i] :
      ( ( ( ( ( set_intersection2 @ SV568 @ SV621 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV568 @ SV621 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2965]) ).

thf(3086,plain,
    ! [SV622: $i,SV569: $i] :
      ( ( ( ~ ( disjoint @ SV569 @ SV622 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV569 @ SV622 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2966]) ).

thf(3087,plain,
    ! [SV623: $i,SV570: $i] :
      ( ( ( ~ ( subset @ SV570 @ SV623 )
          | ~ ( subset @ SV623 @ SV570 ) )
        = $true )
      | ( ( SV570 = SV623 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2967]) ).

thf(3088,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2968]) ).

thf(3089,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2969]) ).

thf(3090,plain,
    ! [SV624: $i,SV571: $i] :
      ( ( ( ( ( set_difference @ SV571 @ ( singleton @ SV624 ) )
           != SV571 ) )
        = $true )
      | ( ( ~ ( in @ SV624 @ SV571 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2970]) ).

thf(3091,plain,
    ! [SV572: $i,SV625: $i] :
      ( ( ( in @ SV625 @ SV572 )
        = $true )
      | ( ( ( set_difference @ SV572 @ ( singleton @ SV625 ) )
          = SV572 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2971]) ).

thf(3092,plain,
    ! [SV483: $i,SV545: $i] :
      ( ( ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV483 )
        = $true )
      | ( ( element @ SV483 @ ( powerset @ SV545 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2972]) ).

thf(3093,plain,
    ! [SV483: $i,SV545: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV545 ) )
        = $true )
      | ( ( element @ SV483 @ ( powerset @ SV545 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2973]) ).

thf(3094,plain,
    ! [SV484: $i] :
      ( ( ( ! [SY837: $i] :
              ( ~ ( relation @ SY837 )
              | ~ ( subset @ SV484 @ SY837 )
              | ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SY837 ) ) ) )
        = $true )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2974]) ).

thf(3095,plain,
    ! [SV484: $i] :
      ( ( ( ! [SY838: $i] :
              ( ~ ( relation @ SY838 )
              | ~ ( subset @ SV484 @ SY838 )
              | ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SY838 ) ) ) )
        = $true )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2975]) ).

thf(3096,plain,
    ! [SV573: $i,SV626: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV573 )
              | ~ ~ ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV626 ) ) )
        = $true )
      | ( ( subset @ SV573 @ SV626 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2976]) ).

thf(3097,plain,
    ! [SV627: $i,SV574: $i] :
      ( ( ( ~ ( subset @ SV574 @ SV627 ) )
        = $true )
      | ( ( ! [SY1001: $i] :
              ( ~ ( in @ SY1001 @ SV574 )
              | ( in @ SY1001 @ SV627 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2977]) ).

thf(3098,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                      | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) )
                  | ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                      | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) )
            | ~ ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 )
                | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) )
        | ( SV669
          = ( set_union2 @ SV485 @ SV628 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2978]) ).

thf(3099,plain,
    ! [SV629: $i,SV485: $i,SV670: $i] :
      ( ( ( SV670
         != ( set_union2 @ SV485 @ SV629 ) )
        | ~ ( ~ ! [SY1046: $i] :
                  ( ~ ( in @ SY1046 @ SV670 )
                  | ( in @ SY1046 @ SV485 )
                  | ( in @ SY1046 @ SV629 ) )
            | ~ ~ ( ~ ! [SY1047: $i] :
                        ( ~ ( in @ SY1047 @ SV485 )
                        | ( in @ SY1047 @ SV670 ) )
                  | ~ ! [SY1048: $i] :
                        ( ~ ( in @ SY1048 @ SV629 )
                        | ( in @ SY1048 @ SV670 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2979]) ).

thf(3100,plain,
    ! [SV630: $i,SV575: $i] :
      ( ( ( ~ ( in @ SV575 @ SV630 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV575 ) @ SV630 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2980]) ).

thf(3101,plain,
    ! [SV631: $i,SV576: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV576 ) @ SV631 ) )
        = $true )
      | ( ( in @ SV576 @ SV631 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2981]) ).

thf(3102,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ ( sK45_SY327 @ SX1 @ SX0 ) ) )
                      | ~ ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) )
                  | ~ ( ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX0 )
                          | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX2 ) )
                      | ( in @ ( sK44_C @ SX1 @ SX0 ) @ SX1 ) ) )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2982]) ).

thf(3103,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( ~ ( in @ ( sK43_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ SX2 @ ( sK43_D @ SX2 @ SX1 @ SX0 ) ) )
                        | ( in @ SX2 @ SX1 ) )
                  | ~ ! [SX2: $i] :
                        ( ~ ( in @ SX2 @ SX1 )
                        | ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ( in @ SX2 @ SX3 ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2983]) ).

thf(3104,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ( SX1 = empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2984]) ).

thf(3105,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1 != empty_set )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2985]) ).

thf(3106,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ~ ( ~ ( ! [SY1007: $i] :
                      ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SY1007 )
                      | ~ ( in @ SY1007 @ SV577 ) )
                  | ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
              | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ ( sK18_SY312 @ SV632 @ SV577 ) )
                      | ~ ( in @ ( sK18_SY312 @ SV632 @ SV577 ) @ SV577 ) )
                  | ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) ) ) )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2986]) ).

thf(3107,plain,
    ! [SV578: $i,SV633: $i] :
      ( ( ( ( SV633
           != ( union @ SV578 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1008: $i] :
                    ( ! [SY967: $i] :
                        ( ~ ( in @ SY1008 @ SY967 )
                        | ~ ( in @ SY967 @ SV578 ) )
                    | ( in @ SY1008 @ SV633 ) )
              | ~ ! [SY1010: $i] :
                    ( ~ ( in @ SY1010 @ SV633 )
                    | ~ ( ~ ( in @ SY1010 @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) )
                        | ~ ( in @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) @ SV578 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2987]) ).

thf(3108,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
                | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
                | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
            | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
                      | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
                  | ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
                      | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) ) ) )
        | ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2988]) ).

thf(3109,plain,
    ! [SV635: $i,SV486: $i,SV672: $i] :
      ( ( ( SV672
         != ( set_intersection2 @ SV486 @ SV635 ) )
        | ~ ( ~ ! [SY1049: $i] :
                  ( ~ ( in @ SY1049 @ SV486 )
                  | ~ ( in @ SY1049 @ SV635 )
                  | ( in @ SY1049 @ SV672 ) )
            | ~ ~ ( ~ ! [SY1050: $i] :
                        ( ~ ( in @ SY1050 @ SV672 )
                        | ( in @ SY1050 @ SV486 ) )
                  | ~ ! [SY1051: $i] :
                        ( ~ ( in @ SY1051 @ SV672 )
                        | ( in @ SY1051 @ SV635 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2989]) ).

thf(3110,plain,
    ! [SV579: $i] :
      ( ( ( empty @ SV579 )
        = $false )
      | ( ( empty @ ( relation_dom @ SV579 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2990]) ).

thf(3111,plain,
    ! [SV580: $i] :
      ( ( ( empty @ SV580 )
        = $false )
      | ( ( relation @ ( relation_dom @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2991]) ).

thf(3112,plain,
    ! [SV487: $i,SV636: $i] :
      ( ( ( ~ ( subset @ SV636 @ ( sK32_B @ SV487 ) )
          | ( are_equipotent @ SV636 @ ( sK32_B @ SV487 ) ) )
        = $true )
      | ( ( in @ SV636 @ ( sK32_B @ SV487 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2992]) ).

thf(3113,plain,
    ! [SV487: $i] :
      ( ( ~ ! [SY854: $i] :
              ( ~ ( in @ SY854 @ ( sK32_B @ SV487 ) )
              | ( in @ ( powerset @ SY854 ) @ ( sK32_B @ SV487 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2993]) ).

thf(3114,plain,
    ! [SV487: $i] :
      ( ( ~ ~ ( ~ ! [SY855: $i,SY856: $i] :
                    ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
                    | ~ ( subset @ SY856 @ SY855 )
                    | ( in @ SY856 @ ( sK32_B @ SV487 ) ) )
              | ~ ( in @ SV487 @ ( sK32_B @ SV487 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2993]) ).

thf(3115,plain,
    ! [SV581: $i] :
      ( ( ( empty @ SV581 )
        = $false )
      | ( ( empty @ ( relation_rng @ SV581 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2994]) ).

thf(3116,plain,
    ! [SV582: $i] :
      ( ( ( empty @ SV582 )
        = $false )
      | ( ( relation @ ( relation_rng @ SV582 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2995]) ).

thf(3117,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
                  | ~ ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) )
              | ~ ( ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
                  | ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) ) ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2996]) ).

thf(3118,plain,
    ! [SV584: $i,SV638: $i] :
      ( ( ( ( SV638
           != ( powerset @ SV584 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1016: $i] :
                    ( ~ ( in @ SY1016 @ SV638 )
                    | ( subset @ SY1016 @ SV584 ) )
              | ~ ! [SY1017: $i] :
                    ( ~ ( subset @ SY1017 @ SV584 )
                    | ( in @ SY1017 @ SV638 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2997]) ).

thf(3119,plain,
    ! [SV639: $i,SV585: $i] :
      ( ( ( disjoint @ SV585 @ SV639 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV585 )
              | ~ ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV639 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2998]) ).

thf(3120,plain,
    ! [SV640: $i,SV586: $i] :
      ( ( ( ! [SY1018: $i] :
              ( ~ ( in @ SY1018 @ SV586 )
              | ~ ( in @ SY1018 @ SV640 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV586 @ SV640 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2999]) ).

thf(3121,plain,
    ! [SV488: $i] :
      ( ( ( ! [SY857: $i] :
              ( ~ ( ~ ( ! [SY858: $i] :
                          ~ ( in @ ( ordered_pair @ SY858 @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                      | ~ ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SY857 @ SV488 ) @ ( sK37_C @ SY857 @ SV488 ) ) @ SV488 )
                      | ( in @ ( sK37_C @ SY857 @ SV488 ) @ SY857 ) ) )
              | ( SY857
                = ( relation_rng @ SV488 ) ) ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3000]) ).

thf(3122,plain,
    ! [SV488: $i] :
      ( ( ( ! [SY859: $i] :
              ( ( SY859
               != ( relation_rng @ SV488 ) )
              | ~ ( ~ ! [SY860: $i] :
                        ( ! [SY861: $i] :
                            ~ ( in @ ( ordered_pair @ SY861 @ SY860 ) @ SV488 )
                        | ( in @ SY860 @ SY859 ) )
                  | ~ ! [SY862: $i] :
                        ( ~ ( in @ SY862 @ SY859 )
                        | ( in @ ( ordered_pair @ ( sK36_D @ SY862 @ SY859 @ SV488 ) @ SY862 ) @ SV488 ) ) ) ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3001]) ).

thf(3123,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[3002]) ).

thf(3124,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( in @ SX1 @ SX0 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[3003]) ).

thf(3125,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( empty @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[3004]) ).

thf(3126,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( empty @ SX1 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[3005]) ).

thf(3127,plain,
    ! [SV641: $i,SV587: $i] :
      ( ( ( ~ ( in @ SV587 @ SV641 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV587 ) @ SV641 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3006]) ).

thf(3128,plain,
    ! [SV642: $i,SV588: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV588 ) @ SV642 ) )
        = $true )
      | ( ( in @ SV588 @ SV642 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3007]) ).

thf(3129,plain,
    ! [SV643: $i,SV589: $i] :
      ( ( ( ~ ( subset @ SV589 @ ( singleton @ SV643 ) ) )
        = $true )
      | ( ( ( SV589 = empty_set )
          | ( SV589
            = ( singleton @ SV643 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3008]) ).

thf(3130,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[3009]) ).

thf(3131,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[3010]) ).

thf(3132,plain,
    ! [SV591: $i] :
      ( ( ( SV591 = empty_set )
        = $false )
      | ( ( ! [SY979: $i] :
              ~ ( in @ SY979 @ SV591 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3012]) ).

thf(3133,plain,
    ! [SV592: $i] :
      ( ( ( relation @ SV592 )
        = $false )
      | ( ( ( ( relation_dom @ SV592 )
           != empty_set )
          | ( SV592 = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3013]) ).

thf(3134,plain,
    ! [SV593: $i] :
      ( ( ( relation @ SV593 )
        = $false )
      | ( ( ( ( relation_rng @ SV593 )
           != empty_set )
          | ( SV593 = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3014]) ).

thf(3135,plain,
    ! [SV594: $i] :
      ( ( ( relation @ SV594 )
        = $false )
      | ( ( ( relation_rng @ SV594 )
          = ( relation_dom @ ( relation_inverse @ SV594 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3015]) ).

thf(3136,plain,
    ! [SV595: $i] :
      ( ( ( relation @ SV595 )
        = $false )
      | ( ( ( relation_dom @ SV595 )
          = ( relation_rng @ ( relation_inverse @ SV595 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3016]) ).

thf(3137,plain,
    ! [SV644: $i,SV596: $i] :
      ( ( ( ( ( set_difference @ SV596 @ SV644 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV596 @ SV644 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3017]) ).

thf(3138,plain,
    ! [SV645: $i,SV597: $i] :
      ( ( ( ~ ( subset @ SV597 @ SV645 ) )
        = $true )
      | ( ( ( set_difference @ SV597 @ SV645 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3018]) ).

thf(3139,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
          | ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) )
        = $true )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3019]) ).

thf(3140,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
          | ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) )
        = $true )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3020]) ).

thf(3141,plain,
    ! [SV646: $i,SV598: $i] :
      ( ( ( ~ ( element @ SV598 @ ( powerset @ SV646 ) ) )
        = $true )
      | ( ( subset @ SV598 @ SV646 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3021]) ).

thf(3142,plain,
    ! [SV647: $i,SV599: $i] :
      ( ( ( ~ ( subset @ SV599 @ SV647 ) )
        = $true )
      | ( ( element @ SV599 @ ( powerset @ SV647 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3022]) ).

thf(3143,plain,
    ! [SV600: $i] :
      ( ( ( ~ ! [SY984: $i,SY985: $i] :
                ( ( sK48_B @ SV600 )
               != ( ordered_pair @ SY984 @ SY985 ) )
          | ~ ( in @ ( sK48_B @ SV600 ) @ SV600 ) )
        = $false )
      | ( ( relation @ SV600 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3023]) ).

thf(3144,plain,
    ! [SV601: $i] :
      ( ( ( relation @ SV601 )
        = $false )
      | ( ( ! [SY986: $i] :
              ( ( SY986
                = ( ordered_pair @ ( sK46_C @ SY986 @ SV601 ) @ ( sK47_SY329 @ SY986 @ SV601 ) ) )
              | ~ ( in @ SY986 @ SV601 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3024]) ).

thf(3145,plain,
    ! [SV648: $i,SV673: $i,SV491: $i] :
      ( ( ~ ( in @ SV491 @ SV673 )
        | ~ ( in @ SV648 @ SV673 )
        | ( subset @ ( unordered_pair @ SV491 @ SV648 ) @ SV673 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3025]) ).

thf(3146,plain,
    ! [SV491: $i] :
      ( ( ~ ! [SY866: $i,SY867: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV491 @ SY866 ) @ SY867 )
              | ( in @ SV491 @ SY867 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3026]) ).

thf(3147,plain,
    ! [SV491: $i] :
      ( ( ~ ! [SY868: $i,SY869: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV491 @ SY868 ) @ SY869 )
              | ( in @ SY868 @ SY869 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3026]) ).

thf(3148,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                      | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                       != SV492 ) )
                  | ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                      | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                       != SV649 ) ) )
            | ~ ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                  = SV492 )
                | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                  = SV649 ) ) )
        | ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3027]) ).

thf(3149,plain,
    ! [SV650: $i,SV492: $i,SV675: $i] :
      ( ( ( SV675
         != ( unordered_pair @ SV492 @ SV650 ) )
        | ~ ( ~ ! [SY1052: $i] :
                  ( ~ ( in @ SY1052 @ SV675 )
                  | ( SY1052 = SV492 )
                  | ( SY1052 = SV650 ) )
            | ~ ~ ( ~ ! [SY1053: $i] :
                        ( ( SY1053 != SV492 )
                        | ( in @ SY1053 @ SV675 ) )
                  | ~ ! [SY1054: $i] :
                        ( ( SY1054 != SV650 )
                        | ( in @ SY1054 @ SV675 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3028]) ).

thf(3150,plain,
    ! [SV547: $i,SV676: $i,SV493: $i] :
      ( ( ! [SY1055: $i] :
            ( ~ ( in @ SV493 @ SV676 )
            | ~ ( in @ SV547 @ SY1055 )
            | ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV676 @ SY1055 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3029]) ).

thf(3151,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ~ ! [SY937: $i] :
              ( ! [SY938: $i] :
                  ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY937 @ SY938 ) )
              | ( in @ SV493 @ SY937 ) )
        | ~ ! [SY939: $i,SY940: $i] :
              ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY939 @ SY940 ) )
              | ( in @ SV547 @ SY940 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[3030]) ).

thf(3152,plain,
    ! [SV651: $i,SV494: $i,SV677: $i] :
      ( ( ~ ( relation @ SV677 )
        | ~ ( in @ ( ordered_pair @ SV494 @ SV651 ) @ SV677 )
        | ( in @ SV494 @ ( relation_dom @ SV677 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3031]) ).

thf(3153,plain,
    ! [SV652: $i,SV494: $i,SV678: $i] :
      ( ( ~ ( relation @ SV678 )
        | ~ ( in @ ( ordered_pair @ SV494 @ SV652 ) @ SV678 )
        | ( in @ SV652 @ ( relation_rng @ SV678 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3032]) ).

thf(3154,plain,
    ! [SV653: $i,SV602: $i] :
      ( ( ( disjoint @ SV602 @ SV653 )
        = $true )
      | ( ( in @ ( sK30_C @ SV653 @ SV602 ) @ ( set_intersection2 @ SV602 @ SV653 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3033]) ).

thf(3155,plain,
    ! [SV654: $i,SV603: $i] :
      ( ( ( ! [SY1027: $i] :
              ~ ( in @ SY1027 @ ( set_intersection2 @ SV603 @ SV654 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV603 @ SV654 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3034]) ).

thf(3156,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( ~ ( ~ ( ( ( sK29_C @ SV655 @ SV604 )
                   != SV604 )
                  | ~ ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) )
              | ~ ( ( ( sK29_C @ SV655 @ SV604 )
                    = SV604 )
                  | ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) ) ) )
        = $true )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3035]) ).

thf(3157,plain,
    ! [SV605: $i,SV656: $i] :
      ( ( ( ( SV656
           != ( singleton @ SV605 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1028: $i] :
                    ( ( SY1028 != SV605 )
                    | ( in @ SY1028 @ SV656 ) )
              | ~ ! [SY1029: $i] :
                    ( ~ ( in @ SY1029 @ SV656 )
                    | ( SY1029 = SV605 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3036]) ).

thf(3158,plain,
    ! [SV657: $i,SV606: $i] :
      ( ( ( ( SV606 = SV657 )
          | ~ ( subset @ SV606 @ SV657 ) )
        = $true )
      | ( ( proper_subset @ SV606 @ SV657 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3037]) ).

thf(3159,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[3038]) ).

thf(3160,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[3039]) ).

thf(3161,plain,
    ! [SV679: $i,SV658: $i,SV495: $i] :
      ( ( ~ ( ~ ( ! [SY1056: $i,SY1057: $i] :
                    ( ~ ( in @ SY1056 @ SV495 )
                    | ~ ( in @ SY1057 @ SV658 )
                    | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
                     != ( ordered_pair @ SY1056 @ SY1057 ) ) )
                | ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
            | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
                          | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) )
                    | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
                     != ( ordered_pair @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) ) ) )
                | ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) ) )
        | ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3040]) ).

thf(3162,plain,
    ! [SV659: $i,SV495: $i,SV680: $i] :
      ( ( ( SV680
         != ( cartesian_product2 @ SV495 @ SV659 ) )
        | ~ ( ~ ! [SY1058: $i] :
                  ( ! [SY1035: $i,SY1036: $i] :
                      ( ~ ( in @ SY1035 @ SV495 )
                      | ~ ( in @ SY1036 @ SV659 )
                      | ( SY1058
                       != ( ordered_pair @ SY1035 @ SY1036 ) ) )
                  | ( in @ SY1058 @ SV680 ) )
            | ~ ! [SY1061: $i] :
                  ( ~ ( in @ SY1061 @ SV680 )
                  | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                            | ~ ( in @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
                      | ( SY1061
                       != ( ordered_pair @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3041]) ).

thf(3163,plain,
    ! [SV496: $i] :
      ( ( ( empty @ ( sK8_B @ SV496 ) )
        = $false )
      | ( ( empty @ SV496 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3043]) ).

thf(3164,plain,
    ! [SV660: $i,SV607: $i] :
      ( ( ( ( ( set_difference @ SV607 @ SV660 )
           != SV607 ) )
        = $true )
      | ( ( disjoint @ SV607 @ SV660 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3044]) ).

thf(3165,plain,
    ! [SV661: $i,SV608: $i] :
      ( ( ( ~ ( disjoint @ SV608 @ SV661 ) )
        = $true )
      | ( ( ( set_difference @ SV608 @ SV661 )
          = SV608 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3045]) ).

thf(3166,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
                | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
                | ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
            | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
                      | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
                  | ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
                      | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) ) ) )
        | ( SV681
          = ( set_difference @ SV497 @ SV662 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3046]) ).

thf(3167,plain,
    ! [SV663: $i,SV497: $i,SV682: $i] :
      ( ( ( SV682
         != ( set_difference @ SV497 @ SV663 ) )
        | ~ ( ~ ! [SY1062: $i] :
                  ( ~ ( in @ SY1062 @ SV497 )
                  | ( in @ SY1062 @ SV663 )
                  | ( in @ SY1062 @ SV682 ) )
            | ~ ~ ( ~ ! [SY1063: $i] :
                        ( ~ ( in @ SY1063 @ SV682 )
                        | ( in @ SY1063 @ SV497 ) )
                  | ~ ! [SY1064: $i] :
                        ( ~ ( in @ SY1064 @ SV682 )
                        | ~ ( in @ SY1064 @ SV663 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3047]) ).

thf(3168,plain,
    ! [SV498: $i] :
      ( ( ( ! [SY905: $i] :
              ( ~ ( ~ ( ! [SY906: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ SY906 ) @ SV498 )
                      | ~ ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SY905 @ SV498 ) @ ( sK41_SY326 @ SY905 @ SV498 ) ) @ SV498 )
                      | ( in @ ( sK40_C @ SY905 @ SV498 ) @ SY905 ) ) )
              | ( SY905
                = ( relation_dom @ SV498 ) ) ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3048]) ).

thf(3169,plain,
    ! [SV498: $i] :
      ( ( ( ! [SY907: $i] :
              ( ( SY907
               != ( relation_dom @ SV498 ) )
              | ~ ( ~ ! [SY908: $i] :
                        ( ! [SY909: $i] :
                            ~ ( in @ ( ordered_pair @ SY908 @ SY909 ) @ SV498 )
                        | ( in @ SY908 @ SY907 ) )
                  | ~ ! [SY910: $i] :
                        ( ~ ( in @ SY910 @ SY907 )
                        | ( in @ ( ordered_pair @ SY910 @ ( sK39_D @ SY910 @ SY907 @ SV498 ) ) @ SV498 ) ) ) ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3049]) ).

thf(3170,plain,
    ! [SV560: $i,SV409: $i] :
      ( ( ( ~ ( subset @ ( relation_rng @ SV409 ) @ ( relation_dom @ SV560 ) ) )
        = $true )
      | ( ( ( relation_dom @ ( relation_composition @ SV409 @ SV560 ) )
          = ( relation_dom @ SV409 ) )
        = $true )
      | ( ( relation @ SV560 )
        = $false )
      | ( ( relation @ SV409 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3052]) ).

thf(3171,plain,
    ! [SV561: $i,SV410: $i] :
      ( ( ( ~ ( subset @ ( relation_dom @ SV410 ) @ ( relation_rng @ SV561 ) ) )
        = $true )
      | ( ( ( relation_rng @ ( relation_composition @ SV561 @ SV410 ) )
          = ( relation_rng @ SV410 ) )
        = $true )
      | ( ( relation @ SV561 )
        = $false )
      | ( ( relation @ SV410 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3053]) ).

thf(3172,plain,
    ! [SV428: $i,SV504: $i,SV609: $i] :
      ( ( ( in @ SV609 @ SV504 )
        = $false )
      | ( ( in @ SV609 @ SV428 )
        = $true )
      | ( ( element @ SV504 @ ( powerset @ SV428 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3056]) ).

thf(3173,plain,
    ! [SV562: $i,SV548: $i,SV507: $i,SV431: $i] :
      ( ( ( subset @ SV431 @ SV507 )
        = $false )
      | ( ( ~ ( subset @ SV548 @ SV562 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV431 @ SV548 ) @ ( cartesian_product2 @ SV507 @ SV562 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3058]) ).

thf(3174,plain,
    ! [SV510: $i,SV549: $i,SV434: $i] :
      ( ( ( subset @ SV434 @ SV549 )
        = $false )
      | ( ( subset @ SV434 @ SV510 )
        = $false )
      | ( ( subset @ SV434 @ ( set_intersection2 @ SV510 @ SV549 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3059]) ).

thf(3175,plain,
    ! [SV435: $i,SV550: $i,SV511: $i] :
      ( ( ( subset @ SV511 @ SV550 )
        = $false )
      | ( ( subset @ SV435 @ SV511 )
        = $false )
      | ( ( subset @ SV435 @ SV550 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3060]) ).

thf(3176,plain,
    ! [SV551: $i,SV522: $i,SV446: $i] :
      ( ( ( subset @ SV446 @ SV522 )
        = $false )
      | ( ( disjoint @ SV522 @ SV551 )
        = $false )
      | ( ( disjoint @ SV446 @ SV551 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3061]) ).

thf(3177,plain,
    ! [SV450: $i,SV525: $i,SV552: $i] :
      ( ( ( subset @ SV552 @ SV525 )
        = $false )
      | ( ( subset @ SV450 @ SV525 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV450 @ SV552 ) @ SV525 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3062]) ).

thf(3178,plain,
    ! [SV556: $i,SV539: $i,SV472: $i] :
      ( ( ( in @ SV472 @ SV539 )
        = $false )
      | ( ( element @ SV539 @ ( powerset @ SV556 ) )
        = $false )
      | ( ( element @ SV472 @ SV556 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3063]) ).

thf(3179,plain,
    ! [SV557: $i,SV540: $i,SV473: $i] :
      ( ( ( in @ SV473 @ SV540 )
        = $false )
      | ( ( element @ SV540 @ ( powerset @ SV557 ) )
        = $false )
      | ( ( ~ ( empty @ SV557 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3064]) ).

thf(3180,plain,
    ! [SV613: $i,SV476: $i,SV664: $i] :
      ( ( ( ~ ( relation @ SV664 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV476 @ SV613 ) @ SV664 )
          | ( in @ SV476 @ ( relation_field @ SV664 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3066]) ).

thf(3181,plain,
    ! [SV614: $i,SV476: $i,SV665: $i] :
      ( ( ( ~ ( relation @ SV665 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV476 @ SV614 ) @ SV665 )
          | ( in @ SV614 @ ( relation_field @ SV665 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3067]) ).

thf(3182,plain,
    ! [SV477: $i,SV564: $i] :
      ( ( ( ~ ! [SY942: $i] :
                ( ~ ( relation @ SY942 )
                | ~ ( ~ ( ! [SY943: $i] :
                            ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ SY943 ) @ SV477 )
                            | ~ ( in @ ( ordered_pair @ SY943 @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                        | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) ) @ SV477 )
                            | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                        | ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) ) )
                | ( SY942
                  = ( relation_composition @ SV477 @ SV564 ) ) )
          | ~ ! [SY944: $i] :
                ( ~ ( relation @ SY944 )
                | ( SY944
                 != ( relation_composition @ SV477 @ SV564 ) )
                | ~ ( ~ ! [SY945: $i,SY946: $i] :
                          ( ! [SY947: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY945 @ SY947 ) @ SV477 )
                              | ~ ( in @ ( ordered_pair @ SY947 @ SY946 ) @ SV564 ) )
                          | ( in @ ( ordered_pair @ SY945 @ SY946 ) @ SY944 ) )
                    | ~ ! [SY948: $i,SY949: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY948 @ SY949 ) @ SY944 )
                          | ~ ( ~ ( in @ ( ordered_pair @ SY948 @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) ) @ SV477 )
                              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) @ SY949 ) @ SV564 ) ) ) ) ) )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3068]) ).

thf(3183,plain,
    ! [SV478: $i,SV615: $i] :
      ( ( ( ~ ( subset @ SV615 @ ( sK2_B @ SV478 ) ) )
        = $true )
      | ( ( are_equipotent @ SV615 @ ( sK2_B @ SV478 ) )
        = $true )
      | ( ( in @ SV615 @ ( sK2_B @ SV478 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3069]) ).

thf(3184,plain,
    ! [SV478: $i] :
      ( ( ! [SY810: $i] :
            ( ~ ( ~ ! [SY811: $i] :
                      ( ~ ( subset @ SY811 @ SY810 )
                      | ( in @ SY811 @ ( sK3_SY300 @ SY810 @ SV478 ) ) )
                | ~ ( in @ ( sK3_SY300 @ SY810 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
            | ~ ( in @ SY810 @ ( sK2_B @ SV478 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3070]) ).

thf(3185,plain,
    ! [SV478: $i] :
      ( ( ~ ( ~ ! [SY812: $i,SY813: $i] :
                  ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
                  | ~ ( subset @ SY813 @ SY812 )
                  | ( in @ SY813 @ ( sK2_B @ SV478 ) ) )
            | ~ ( in @ SV478 @ ( sK2_B @ SV478 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3071]) ).

thf(3186,plain,
    ! [SV616: $i,SV479: $i] :
      ( ( ( subset @ SV479 @ SV616 )
        = $false )
      | ( ( ! [SY999: $i] : ( subset @ ( cartesian_product2 @ SV479 @ SY999 ) @ ( cartesian_product2 @ SV616 @ SY999 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3072]) ).

thf(3187,plain,
    ! [SV617: $i,SV479: $i] :
      ( ( ( subset @ SV479 @ SV617 )
        = $false )
      | ( ( ! [SY1000: $i] : ( subset @ ( cartesian_product2 @ SY1000 @ SV479 ) @ ( cartesian_product2 @ SY1000 @ SV617 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3073]) ).

thf(3188,plain,
    ! [SV618: $i,SV565: $i] :
      ( ( ( subset @ SV565 @ ( singleton @ SV618 ) )
        = $false )
      | ( ( ( SV565 = empty_set )
          | ( SV565
            = ( singleton @ SV618 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3074]) ).

thf(3189,plain,
    ! [SV683: $i] :
      ( ( ( SV683 != empty_set )
        | ! [SY1065: $i] : ( subset @ SV683 @ ( singleton @ SY1065 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3075]) ).

thf(3190,plain,
    ! [SV684: $i] :
      ( ( ! [SY1066: $i] :
            ( ( SV684
             != ( singleton @ SY1066 ) )
            | ( subset @ SV684 @ ( singleton @ SY1066 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3076]) ).

thf(3191,plain,
    ! [SV666: $i,SV543: $i,SV480: $i] :
      ( ( ( ! [SY1043: $i] :
              ( ( ordered_pair @ SV480 @ SV543 )
             != ( ordered_pair @ SV666 @ SY1043 ) ) )
        = $true )
      | ( ( SV480 = SV666 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3077]) ).

thf(3192,plain,
    ! [SV685: $i,SV667: $i,SV543: $i,SV480: $i] :
      ( ( ( ( ordered_pair @ SV480 @ SV543 )
         != ( ordered_pair @ SV667 @ SV685 ) )
        | ( SV543 = SV685 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3078]) ).

thf(3193,plain,
    ! [SV619: $i,SV566: $i] :
      ( ( ( ( set_difference @ SV566 @ SV619 )
          = empty_set )
        = $false )
      | ( ( subset @ SV566 @ SV619 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3079]) ).

thf(3194,plain,
    ! [SV620: $i,SV567: $i] :
      ( ( ( subset @ SV567 @ SV620 )
        = $false )
      | ( ( ( set_difference @ SV567 @ SV620 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3080]) ).

thf(3195,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( ~ ( relation @ SV686 )
          | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
                  | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
                  | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) ) )
          | ( SV686
            = ( relation_inverse @ SV481 ) ) )
        = $true )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3081]) ).

thf(3196,plain,
    ! [SV481: $i,SV687: $i] :
      ( ( ( ~ ( relation @ SV687 )
          | ( SV687
           != ( relation_inverse @ SV481 ) )
          | ~ ( ~ ! [SY1067: $i,SY1068: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1067 @ SY1068 ) @ SV687 )
                    | ( in @ ( ordered_pair @ SY1068 @ SY1067 ) @ SV481 ) )
              | ~ ! [SY1069: $i,SY1070: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1070 @ SY1069 ) @ SV481 )
                    | ( in @ ( ordered_pair @ SY1069 @ SY1070 ) @ SV687 ) ) ) )
        = $true )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3082]) ).

thf(3197,plain,
    ! [SV688: $i,SV544: $i,SV668: $i,SV482: $i] :
      ( ( ~ ( in @ SV482 @ SV668 )
        | ~ ( in @ SV544 @ SV688 )
        | ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV668 @ SV688 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3083]) ).

thf(3198,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ~ ! [SY931: $i] :
              ( ! [SY932: $i] :
                  ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY931 @ SY932 ) )
              | ( in @ SV482 @ SY931 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3084]) ).

thf(3199,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ~ ! [SY933: $i,SY934: $i] :
              ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY933 @ SY934 ) )
              | ( in @ SV544 @ SY934 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3084]) ).

thf(3200,plain,
    ! [SV621: $i,SV568: $i] :
      ( ( ( ( set_intersection2 @ SV568 @ SV621 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV568 @ SV621 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3085]) ).

thf(3201,plain,
    ! [SV622: $i,SV569: $i] :
      ( ( ( disjoint @ SV569 @ SV622 )
        = $false )
      | ( ( ( set_intersection2 @ SV569 @ SV622 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3086]) ).

thf(3202,plain,
    ! [SV623: $i,SV570: $i] :
      ( ( ( ~ ( subset @ SV570 @ SV623 ) )
        = $true )
      | ( ( ~ ( subset @ SV623 @ SV570 ) )
        = $true )
      | ( ( SV570 = SV623 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3087]) ).

thf(3203,plain,
    ! [SV689: $i] :
      ( ( ! [SY1071: $i] :
            ( ( SV689 != SY1071 )
            | ( subset @ SV689 @ SY1071 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3088]) ).

thf(3204,plain,
    ! [SV690: $i] :
      ( ( ! [SY1072: $i] :
            ( ( SV690 != SY1072 )
            | ( subset @ SY1072 @ SV690 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3089]) ).

thf(3205,plain,
    ! [SV624: $i,SV571: $i] :
      ( ( ( ( set_difference @ SV571 @ ( singleton @ SV624 ) )
          = SV571 )
        = $false )
      | ( ( ~ ( in @ SV624 @ SV571 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3090]) ).

thf(3206,plain,
    ! [SV483: $i,SV545: $i] :
      ( ( ( in @ ( sK33_C @ SV545 @ SV483 ) @ SV545 )
        = $false )
      | ( ( element @ SV483 @ ( powerset @ SV545 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3093]) ).

thf(3207,plain,
    ! [SV484: $i,SV691: $i] :
      ( ( ( ~ ( relation @ SV691 )
          | ~ ( subset @ SV484 @ SV691 )
          | ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SV691 ) ) )
        = $true )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3094]) ).

thf(3208,plain,
    ! [SV484: $i,SV692: $i] :
      ( ( ( ~ ( relation @ SV692 )
          | ~ ( subset @ SV484 @ SV692 )
          | ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SV692 ) ) )
        = $true )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3095]) ).

thf(3209,plain,
    ! [SV573: $i,SV626: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV573 )
          | ~ ~ ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV626 ) )
        = $false )
      | ( ( subset @ SV573 @ SV626 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3096]) ).

thf(3210,plain,
    ! [SV627: $i,SV574: $i] :
      ( ( ( subset @ SV574 @ SV627 )
        = $false )
      | ( ( ! [SY1001: $i] :
              ( ~ ( in @ SY1001 @ SV574 )
              | ( in @ SY1001 @ SV627 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3097]) ).

thf(3211,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                        | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) )
                    | ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                        | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) )
              | ~ ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                  | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 )
                  | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3098]) ).

thf(3212,plain,
    ! [SV629: $i,SV485: $i,SV670: $i] :
      ( ( ( ( SV670
           != ( set_union2 @ SV485 @ SV629 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1046: $i] :
                    ( ~ ( in @ SY1046 @ SV670 )
                    | ( in @ SY1046 @ SV485 )
                    | ( in @ SY1046 @ SV629 ) )
              | ~ ~ ( ~ ! [SY1047: $i] :
                          ( ~ ( in @ SY1047 @ SV485 )
                          | ( in @ SY1047 @ SV670 ) )
                    | ~ ! [SY1048: $i] :
                          ( ~ ( in @ SY1048 @ SV629 )
                          | ( in @ SY1048 @ SV670 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3099]) ).

thf(3213,plain,
    ! [SV630: $i,SV575: $i] :
      ( ( ( in @ SV575 @ SV630 )
        = $false )
      | ( ( subset @ ( singleton @ SV575 ) @ SV630 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3100]) ).

thf(3214,plain,
    ! [SV631: $i,SV576: $i] :
      ( ( ( subset @ ( singleton @ SV576 ) @ SV631 )
        = $false )
      | ( ( in @ SV576 @ SV631 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3101]) ).

thf(3215,plain,
    ! [SV693: $i] :
      ( ( ( SV693 = empty_set )
        | ! [SY1073: $i] :
            ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SY1073 @ SV693 ) @ SV693 )
                        | ~ ~ ( in @ ( sK44_C @ SY1073 @ SV693 ) @ ( sK45_SY327 @ SY1073 @ SV693 ) ) )
                    | ~ ( in @ ( sK44_C @ SY1073 @ SV693 ) @ SY1073 ) )
                | ~ ( ! [SY1074: $i] :
                        ( ~ ( in @ SY1074 @ SV693 )
                        | ( in @ ( sK44_C @ SY1073 @ SV693 ) @ SY1074 ) )
                    | ( in @ ( sK44_C @ SY1073 @ SV693 ) @ SY1073 ) ) )
            | ( SY1073
              = ( set_meet @ SV693 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3102]) ).

thf(3216,plain,
    ! [SV694: $i] :
      ( ( ( SV694 = empty_set )
        | ! [SY1075: $i] :
            ( ( SY1075
             != ( set_meet @ SV694 ) )
            | ~ ( ~ ! [SY1076: $i] :
                      ( ~ ( ~ ( in @ ( sK43_D @ SY1076 @ SY1075 @ SV694 ) @ SV694 )
                          | ~ ~ ( in @ SY1076 @ ( sK43_D @ SY1076 @ SY1075 @ SV694 ) ) )
                      | ( in @ SY1076 @ SY1075 ) )
                | ~ ! [SY1077: $i] :
                      ( ~ ( in @ SY1077 @ SY1075 )
                      | ! [SY1078: $i] :
                          ( ~ ( in @ SY1078 @ SV694 )
                          | ( in @ SY1077 @ SY1078 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3103]) ).

thf(3217,plain,
    ! [SV695: $i] :
      ( ( ( SV695 != empty_set )
        | ! [SY1079: $i] :
            ( ( SY1079
             != ( set_meet @ SV695 ) )
            | ( SY1079 = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3104]) ).

thf(3218,plain,
    ! [SV696: $i] :
      ( ( ( SV696 != empty_set )
        | ! [SY1080: $i] :
            ( ( SY1080 != empty_set )
            | ( SY1080
              = ( set_meet @ SV696 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3105]) ).

thf(3219,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ~ ( ! [SY1007: $i] :
                  ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SY1007 )
                  | ~ ( in @ SY1007 @ SV577 ) )
              | ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
          | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ ( sK18_SY312 @ SV632 @ SV577 ) )
                  | ~ ( in @ ( sK18_SY312 @ SV632 @ SV577 ) @ SV577 ) )
              | ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) ) )
        = $false )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3106]) ).

thf(3220,plain,
    ! [SV578: $i,SV633: $i] :
      ( ( ( SV633
          = ( union @ SV578 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1008: $i] :
                    ( ! [SY967: $i] :
                        ( ~ ( in @ SY1008 @ SY967 )
                        | ~ ( in @ SY967 @ SV578 ) )
                    | ( in @ SY1008 @ SV633 ) )
              | ~ ! [SY1010: $i] :
                    ( ~ ( in @ SY1010 @ SV633 )
                    | ~ ( ~ ( in @ SY1010 @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) )
                        | ~ ( in @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) @ SV578 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3107]) ).

thf(3221,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
                  | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
                  | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
              | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
                        | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
                    | ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
                        | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) ) ) ) )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3108]) ).

thf(3222,plain,
    ! [SV635: $i,SV486: $i,SV672: $i] :
      ( ( ( ( SV672
           != ( set_intersection2 @ SV486 @ SV635 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1049: $i] :
                    ( ~ ( in @ SY1049 @ SV486 )
                    | ~ ( in @ SY1049 @ SV635 )
                    | ( in @ SY1049 @ SV672 ) )
              | ~ ~ ( ~ ! [SY1050: $i] :
                          ( ~ ( in @ SY1050 @ SV672 )
                          | ( in @ SY1050 @ SV486 ) )
                    | ~ ! [SY1051: $i] :
                          ( ~ ( in @ SY1051 @ SV672 )
                          | ( in @ SY1051 @ SV635 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3109]) ).

thf(3223,plain,
    ! [SV487: $i,SV636: $i] :
      ( ( ( ~ ( subset @ SV636 @ ( sK32_B @ SV487 ) ) )
        = $true )
      | ( ( are_equipotent @ SV636 @ ( sK32_B @ SV487 ) )
        = $true )
      | ( ( in @ SV636 @ ( sK32_B @ SV487 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3112]) ).

thf(3224,plain,
    ! [SV487: $i] :
      ( ( ! [SY854: $i] :
            ( ~ ( in @ SY854 @ ( sK32_B @ SV487 ) )
            | ( in @ ( powerset @ SY854 ) @ ( sK32_B @ SV487 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3113]) ).

thf(3225,plain,
    ! [SV487: $i] :
      ( ( ~ ( ~ ! [SY855: $i,SY856: $i] :
                  ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
                  | ~ ( subset @ SY856 @ SY855 )
                  | ( in @ SY856 @ ( sK32_B @ SV487 ) ) )
            | ~ ( in @ SV487 @ ( sK32_B @ SV487 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3114]) ).

thf(3226,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
              | ~ ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) )
          | ~ ( ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
              | ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) ) )
        = $false )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3117]) ).

thf(3227,plain,
    ! [SV584: $i,SV638: $i] :
      ( ( ( SV638
          = ( powerset @ SV584 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1016: $i] :
                    ( ~ ( in @ SY1016 @ SV638 )
                    | ( subset @ SY1016 @ SV584 ) )
              | ~ ! [SY1017: $i] :
                    ( ~ ( subset @ SY1017 @ SV584 )
                    | ( in @ SY1017 @ SV638 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3118]) ).

thf(3228,plain,
    ! [SV585: $i,SV639: $i] :
      ( ( ( ~ ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV585 )
          | ~ ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV639 ) )
        = $false )
      | ( ( disjoint @ SV585 @ SV639 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3119]) ).

thf(3229,plain,
    ! [SV640: $i,SV586: $i,SV697: $i] :
      ( ( ( ~ ( in @ SV697 @ SV586 )
          | ~ ( in @ SV697 @ SV640 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV586 @ SV640 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3120]) ).

thf(3230,plain,
    ! [SV488: $i,SV698: $i] :
      ( ( ( ~ ( ~ ( ! [SY1081: $i] :
                      ~ ( in @ ( ordered_pair @ SY1081 @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
                  | ~ ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV698 @ SV488 ) @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
                  | ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) ) )
          | ( SV698
            = ( relation_rng @ SV488 ) ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3121]) ).

thf(3231,plain,
    ! [SV488: $i,SV699: $i] :
      ( ( ( ( SV699
           != ( relation_rng @ SV488 ) )
          | ~ ( ~ ! [SY1082: $i] :
                    ( ! [SY861: $i] :
                        ~ ( in @ ( ordered_pair @ SY861 @ SY1082 ) @ SV488 )
                    | ( in @ SY1082 @ SV699 ) )
              | ~ ! [SY1084: $i] :
                    ( ~ ( in @ SY1084 @ SV699 )
                    | ( in @ ( ordered_pair @ ( sK36_D @ SY1084 @ SV699 @ SV488 ) @ SY1084 ) @ SV488 ) ) ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3122]) ).

thf(3232,plain,
    ! [SV700: $i] :
      ( ( ( empty @ SV700 )
        | ! [SY1085: $i] :
            ( ~ ( element @ SY1085 @ SV700 )
            | ( in @ SY1085 @ SV700 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3123]) ).

thf(3233,plain,
    ! [SV701: $i] :
      ( ( ( empty @ SV701 )
        | ! [SY1086: $i] :
            ( ~ ( in @ SY1086 @ SV701 )
            | ( element @ SY1086 @ SV701 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3124]) ).

thf(3234,plain,
    ! [SV702: $i] :
      ( ( ~ ( empty @ SV702 )
        | ! [SY1087: $i] :
            ( ~ ( element @ SY1087 @ SV702 )
            | ( empty @ SY1087 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3125]) ).

thf(3235,plain,
    ! [SV703: $i] :
      ( ( ~ ( empty @ SV703 )
        | ! [SY1088: $i] :
            ( ~ ( empty @ SY1088 )
            | ( element @ SY1088 @ SV703 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3126]) ).

thf(3236,plain,
    ! [SV641: $i,SV587: $i] :
      ( ( ( in @ SV587 @ SV641 )
        = $false )
      | ( ( subset @ ( singleton @ SV587 ) @ SV641 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3127]) ).

thf(3237,plain,
    ! [SV642: $i,SV588: $i] :
      ( ( ( subset @ ( singleton @ SV588 ) @ SV642 )
        = $false )
      | ( ( in @ SV588 @ SV642 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3128]) ).

thf(3238,plain,
    ! [SV643: $i,SV589: $i] :
      ( ( ( subset @ SV589 @ ( singleton @ SV643 ) )
        = $false )
      | ( ( ( SV589 = empty_set )
          | ( SV589
            = ( singleton @ SV643 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3129]) ).

thf(3239,plain,
    ! [SV704: $i] :
      ( ( ( SV704 != empty_set )
        | ! [SY1089: $i] : ( subset @ SV704 @ ( singleton @ SY1089 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3130]) ).

thf(3240,plain,
    ! [SV705: $i] :
      ( ( ! [SY1090: $i] :
            ( ( SV705
             != ( singleton @ SY1090 ) )
            | ( subset @ SV705 @ ( singleton @ SY1090 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3131]) ).

thf(3241,plain,
    ! [SV591: $i,SV706: $i] :
      ( ( ( ~ ( in @ SV706 @ SV591 ) )
        = $true )
      | ( ( SV591 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3132]) ).

thf(3242,plain,
    ! [SV592: $i] :
      ( ( ( ( ( relation_dom @ SV592 )
           != empty_set ) )
        = $true )
      | ( ( SV592 = empty_set )
        = $true )
      | ( ( relation @ SV592 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3133]) ).

thf(3243,plain,
    ! [SV593: $i] :
      ( ( ( ( ( relation_rng @ SV593 )
           != empty_set ) )
        = $true )
      | ( ( SV593 = empty_set )
        = $true )
      | ( ( relation @ SV593 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3134]) ).

thf(3244,plain,
    ! [SV644: $i,SV596: $i] :
      ( ( ( ( set_difference @ SV596 @ SV644 )
          = empty_set )
        = $false )
      | ( ( subset @ SV596 @ SV644 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3137]) ).

thf(3245,plain,
    ! [SV645: $i,SV597: $i] :
      ( ( ( subset @ SV597 @ SV645 )
        = $false )
      | ( ( ( set_difference @ SV597 @ SV645 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3138]) ).

thf(3246,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 ) )
        = $true )
      | ( ( ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) )
        = $true )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3139]) ).

thf(3247,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
        = $true )
      | ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 )
        = $true )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3140]) ).

thf(3248,plain,
    ! [SV646: $i,SV598: $i] :
      ( ( ( element @ SV598 @ ( powerset @ SV646 ) )
        = $false )
      | ( ( subset @ SV598 @ SV646 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3141]) ).

thf(3249,plain,
    ! [SV647: $i,SV599: $i] :
      ( ( ( subset @ SV599 @ SV647 )
        = $false )
      | ( ( element @ SV599 @ ( powerset @ SV647 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3142]) ).

thf(3250,plain,
    ! [SV600: $i] :
      ( ( ( ~ ! [SY984: $i,SY985: $i] :
                ( ( sK48_B @ SV600 )
               != ( ordered_pair @ SY984 @ SY985 ) ) )
        = $false )
      | ( ( relation @ SV600 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3143]) ).

thf(3251,plain,
    ! [SV600: $i] :
      ( ( ( ~ ( in @ ( sK48_B @ SV600 ) @ SV600 ) )
        = $false )
      | ( ( relation @ SV600 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3143]) ).

thf(3252,plain,
    ! [SV601: $i,SV707: $i] :
      ( ( ( ( SV707
            = ( ordered_pair @ ( sK46_C @ SV707 @ SV601 ) @ ( sK47_SY329 @ SV707 @ SV601 ) ) )
          | ~ ( in @ SV707 @ SV601 ) )
        = $true )
      | ( ( relation @ SV601 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3144]) ).

thf(3253,plain,
    ! [SV648: $i,SV673: $i,SV491: $i] :
      ( ( ( ~ ( in @ SV491 @ SV673 )
          | ~ ( in @ SV648 @ SV673 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV491 @ SV648 ) @ SV673 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3145]) ).

thf(3254,plain,
    ! [SV491: $i] :
      ( ( ! [SY866: $i,SY867: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV491 @ SY866 ) @ SY867 )
            | ( in @ SV491 @ SY867 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3146]) ).

thf(3255,plain,
    ! [SV491: $i] :
      ( ( ! [SY868: $i,SY869: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV491 @ SY868 ) @ SY869 )
            | ( in @ SY868 @ SY869 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3147]) ).

thf(3256,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                        | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                         != SV492 ) )
                    | ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                        | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                         != SV649 ) ) )
              | ~ ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                  | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                    = SV492 )
                  | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                    = SV649 ) ) ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3148]) ).

thf(3257,plain,
    ! [SV650: $i,SV492: $i,SV675: $i] :
      ( ( ( ( SV675
           != ( unordered_pair @ SV492 @ SV650 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1052: $i] :
                    ( ~ ( in @ SY1052 @ SV675 )
                    | ( SY1052 = SV492 )
                    | ( SY1052 = SV650 ) )
              | ~ ~ ( ~ ! [SY1053: $i] :
                          ( ( SY1053 != SV492 )
                          | ( in @ SY1053 @ SV675 ) )
                    | ~ ! [SY1054: $i] :
                          ( ( SY1054 != SV650 )
                          | ( in @ SY1054 @ SV675 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3149]) ).

thf(3258,plain,
    ! [SV708: $i,SV547: $i,SV676: $i,SV493: $i] :
      ( ( ~ ( in @ SV493 @ SV676 )
        | ~ ( in @ SV547 @ SV708 )
        | ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV676 @ SV708 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3150]) ).

thf(3259,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ~ ! [SY937: $i] :
              ( ! [SY938: $i] :
                  ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY937 @ SY938 ) )
              | ( in @ SV493 @ SY937 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3151]) ).

thf(3260,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ~ ! [SY939: $i,SY940: $i] :
              ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY939 @ SY940 ) )
              | ( in @ SV547 @ SY940 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3151]) ).

thf(3261,plain,
    ! [SV651: $i,SV494: $i,SV677: $i] :
      ( ( ( ~ ( relation @ SV677 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV494 @ SV651 ) @ SV677 )
          | ( in @ SV494 @ ( relation_dom @ SV677 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3152]) ).

thf(3262,plain,
    ! [SV652: $i,SV494: $i,SV678: $i] :
      ( ( ( ~ ( relation @ SV678 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV494 @ SV652 ) @ SV678 )
          | ( in @ SV652 @ ( relation_rng @ SV678 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3153]) ).

thf(3263,plain,
    ! [SV654: $i,SV603: $i,SV709: $i] :
      ( ( ( ~ ( in @ SV709 @ ( set_intersection2 @ SV603 @ SV654 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV603 @ SV654 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3155]) ).

thf(3264,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( ~ ( ( ( sK29_C @ SV655 @ SV604 )
               != SV604 )
              | ~ ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) )
          | ~ ( ( ( sK29_C @ SV655 @ SV604 )
                = SV604 )
              | ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) ) )
        = $false )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3156]) ).

thf(3265,plain,
    ! [SV605: $i,SV656: $i] :
      ( ( ( SV656
          = ( singleton @ SV605 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1028: $i] :
                    ( ( SY1028 != SV605 )
                    | ( in @ SY1028 @ SV656 ) )
              | ~ ! [SY1029: $i] :
                    ( ~ ( in @ SY1029 @ SV656 )
                    | ( SY1029 = SV605 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3157]) ).

thf(3266,plain,
    ! [SV657: $i,SV606: $i] :
      ( ( ( SV606 = SV657 )
        = $true )
      | ( ( ~ ( subset @ SV606 @ SV657 ) )
        = $true )
      | ( ( proper_subset @ SV606 @ SV657 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3158]) ).

thf(3267,plain,
    ! [SV710: $i] :
      ( ( ! [SY1091: $i] :
            ( ~ ( proper_subset @ SV710 @ SY1091 )
            | ( SV710 != SY1091 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3159]) ).

thf(3268,plain,
    ! [SV711: $i] :
      ( ( ! [SY1092: $i] :
            ( ~ ( proper_subset @ SV711 @ SY1092 )
            | ( subset @ SV711 @ SY1092 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3160]) ).

thf(3269,plain,
    ! [SV679: $i,SV658: $i,SV495: $i] :
      ( ( ( ~ ( ~ ( ! [SY1056: $i,SY1057: $i] :
                      ( ~ ( in @ SY1056 @ SV495 )
                      | ~ ( in @ SY1057 @ SV658 )
                      | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
                       != ( ordered_pair @ SY1056 @ SY1057 ) ) )
                  | ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
              | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
                            | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) )
                      | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
                       != ( ordered_pair @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) ) ) )
                  | ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) ) ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3161]) ).

thf(3270,plain,
    ! [SV659: $i,SV495: $i,SV680: $i] :
      ( ( ( ( SV680
           != ( cartesian_product2 @ SV495 @ SV659 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1058: $i] :
                    ( ! [SY1035: $i,SY1036: $i] :
                        ( ~ ( in @ SY1035 @ SV495 )
                        | ~ ( in @ SY1036 @ SV659 )
                        | ( SY1058
                         != ( ordered_pair @ SY1035 @ SY1036 ) ) )
                    | ( in @ SY1058 @ SV680 ) )
              | ~ ! [SY1061: $i] :
                    ( ~ ( in @ SY1061 @ SV680 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                              | ~ ( in @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
                        | ( SY1061
                         != ( ordered_pair @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3162]) ).

thf(3271,plain,
    ! [SV660: $i,SV607: $i] :
      ( ( ( ( set_difference @ SV607 @ SV660 )
          = SV607 )
        = $false )
      | ( ( disjoint @ SV607 @ SV660 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3164]) ).

thf(3272,plain,
    ! [SV661: $i,SV608: $i] :
      ( ( ( disjoint @ SV608 @ SV661 )
        = $false )
      | ( ( ( set_difference @ SV608 @ SV661 )
          = SV608 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3165]) ).

thf(3273,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
                  | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
                  | ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
              | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
                        | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
                    | ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
                        | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) ) ) ) )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3166]) ).

thf(3274,plain,
    ! [SV663: $i,SV497: $i,SV682: $i] :
      ( ( ( ( SV682
           != ( set_difference @ SV497 @ SV663 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1062: $i] :
                    ( ~ ( in @ SY1062 @ SV497 )
                    | ( in @ SY1062 @ SV663 )
                    | ( in @ SY1062 @ SV682 ) )
              | ~ ~ ( ~ ! [SY1063: $i] :
                          ( ~ ( in @ SY1063 @ SV682 )
                          | ( in @ SY1063 @ SV497 ) )
                    | ~ ! [SY1064: $i] :
                          ( ~ ( in @ SY1064 @ SV682 )
                          | ~ ( in @ SY1064 @ SV663 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3167]) ).

thf(3275,plain,
    ! [SV498: $i,SV712: $i] :
      ( ( ( ~ ( ~ ( ! [SY1093: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ SY1093 ) @ SV498 )
                  | ~ ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ ( sK41_SY326 @ SV712 @ SV498 ) ) @ SV498 )
                  | ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) ) )
          | ( SV712
            = ( relation_dom @ SV498 ) ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3168]) ).

thf(3276,plain,
    ! [SV498: $i,SV713: $i] :
      ( ( ( ( SV713
           != ( relation_dom @ SV498 ) )
          | ~ ( ~ ! [SY1094: $i] :
                    ( ! [SY909: $i] :
                        ~ ( in @ ( ordered_pair @ SY1094 @ SY909 ) @ SV498 )
                    | ( in @ SY1094 @ SV713 ) )
              | ~ ! [SY1096: $i] :
                    ( ~ ( in @ SY1096 @ SV713 )
                    | ( in @ ( ordered_pair @ SY1096 @ ( sK39_D @ SY1096 @ SV713 @ SV498 ) ) @ SV498 ) ) ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3169]) ).

thf(3277,plain,
    ! [SV560: $i,SV409: $i] :
      ( ( ( subset @ ( relation_rng @ SV409 ) @ ( relation_dom @ SV560 ) )
        = $false )
      | ( ( ( relation_dom @ ( relation_composition @ SV409 @ SV560 ) )
          = ( relation_dom @ SV409 ) )
        = $true )
      | ( ( relation @ SV560 )
        = $false )
      | ( ( relation @ SV409 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3170]) ).

thf(3278,plain,
    ! [SV561: $i,SV410: $i] :
      ( ( ( subset @ ( relation_dom @ SV410 ) @ ( relation_rng @ SV561 ) )
        = $false )
      | ( ( ( relation_rng @ ( relation_composition @ SV561 @ SV410 ) )
          = ( relation_rng @ SV410 ) )
        = $true )
      | ( ( relation @ SV561 )
        = $false )
      | ( ( relation @ SV410 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3171]) ).

thf(3279,plain,
    ! [SV507: $i,SV431: $i,SV562: $i,SV548: $i] :
      ( ( ( subset @ SV548 @ SV562 )
        = $false )
      | ( ( subset @ SV431 @ SV507 )
        = $false )
      | ( ( subset @ ( cartesian_product2 @ SV431 @ SV548 ) @ ( cartesian_product2 @ SV507 @ SV562 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3173]) ).

thf(3280,plain,
    ! [SV473: $i,SV540: $i,SV557: $i] :
      ( ( ( empty @ SV557 )
        = $false )
      | ( ( element @ SV540 @ ( powerset @ SV557 ) )
        = $false )
      | ( ( in @ SV473 @ SV540 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3179]) ).

thf(3281,plain,
    ! [SV613: $i,SV476: $i,SV664: $i] :
      ( ( ( relation @ SV664 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV476 @ SV613 ) @ SV664 )
          | ( in @ SV476 @ ( relation_field @ SV664 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3180]) ).

thf(3282,plain,
    ! [SV614: $i,SV476: $i,SV665: $i] :
      ( ( ( relation @ SV665 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV476 @ SV614 ) @ SV665 )
          | ( in @ SV614 @ ( relation_field @ SV665 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3181]) ).

thf(3283,plain,
    ! [SV477: $i,SV564: $i] :
      ( ( ( ~ ! [SY942: $i] :
                ( ~ ( relation @ SY942 )
                | ~ ( ~ ( ! [SY943: $i] :
                            ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ SY943 ) @ SV477 )
                            | ~ ( in @ ( ordered_pair @ SY943 @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                        | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) ) @ SV477 )
                            | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                        | ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) ) )
                | ( SY942
                  = ( relation_composition @ SV477 @ SV564 ) ) ) )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3182]) ).

thf(3284,plain,
    ! [SV564: $i,SV477: $i] :
      ( ( ( ~ ! [SY944: $i] :
                ( ~ ( relation @ SY944 )
                | ( SY944
                 != ( relation_composition @ SV477 @ SV564 ) )
                | ~ ( ~ ! [SY945: $i,SY946: $i] :
                          ( ! [SY947: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY945 @ SY947 ) @ SV477 )
                              | ~ ( in @ ( ordered_pair @ SY947 @ SY946 ) @ SV564 ) )
                          | ( in @ ( ordered_pair @ SY945 @ SY946 ) @ SY944 ) )
                    | ~ ! [SY948: $i,SY949: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY948 @ SY949 ) @ SY944 )
                          | ~ ( ~ ( in @ ( ordered_pair @ SY948 @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) ) @ SV477 )
                              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) @ SY949 ) @ SV564 ) ) ) ) ) )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3182]) ).

thf(3285,plain,
    ! [SV478: $i,SV615: $i] :
      ( ( ( subset @ SV615 @ ( sK2_B @ SV478 ) )
        = $false )
      | ( ( are_equipotent @ SV615 @ ( sK2_B @ SV478 ) )
        = $true )
      | ( ( in @ SV615 @ ( sK2_B @ SV478 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3183]) ).

thf(3286,plain,
    ! [SV478: $i,SV714: $i] :
      ( ( ~ ( ~ ! [SY1097: $i] :
                  ( ~ ( subset @ SY1097 @ SV714 )
                  | ( in @ SY1097 @ ( sK3_SY300 @ SV714 @ SV478 ) ) )
            | ~ ( in @ ( sK3_SY300 @ SV714 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
        | ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3184]) ).

thf(3287,plain,
    ! [SV478: $i] :
      ( ( ~ ! [SY812: $i,SY813: $i] :
              ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
              | ~ ( subset @ SY813 @ SY812 )
              | ( in @ SY813 @ ( sK2_B @ SV478 ) ) )
        | ~ ( in @ SV478 @ ( sK2_B @ SV478 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[3185]) ).

thf(3288,plain,
    ! [SV616: $i,SV715: $i,SV479: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV479 @ SV715 ) @ ( cartesian_product2 @ SV616 @ SV715 ) )
        = $true )
      | ( ( subset @ SV479 @ SV616 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3186]) ).

thf(3289,plain,
    ! [SV617: $i,SV479: $i,SV716: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV716 @ SV479 ) @ ( cartesian_product2 @ SV716 @ SV617 ) )
        = $true )
      | ( ( subset @ SV479 @ SV617 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3187]) ).

thf(3290,plain,
    ! [SV618: $i,SV565: $i] :
      ( ( ( SV565 = empty_set )
        = $true )
      | ( ( SV565
          = ( singleton @ SV618 ) )
        = $true )
      | ( ( subset @ SV565 @ ( singleton @ SV618 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3188]) ).

thf(3291,plain,
    ! [SV683: $i] :
      ( ( ( ( SV683 != empty_set ) )
        = $true )
      | ( ( ! [SY1065: $i] : ( subset @ SV683 @ ( singleton @ SY1065 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3189]) ).

thf(3292,plain,
    ! [SV717: $i,SV684: $i] :
      ( ( ( SV684
         != ( singleton @ SV717 ) )
        | ( subset @ SV684 @ ( singleton @ SV717 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3190]) ).

thf(3293,plain,
    ! [SV718: $i,SV666: $i,SV543: $i,SV480: $i] :
      ( ( ( ( ( ordered_pair @ SV480 @ SV543 )
           != ( ordered_pair @ SV666 @ SV718 ) ) )
        = $true )
      | ( ( SV480 = SV666 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3191]) ).

thf(3294,plain,
    ! [SV685: $i,SV667: $i,SV543: $i,SV480: $i] :
      ( ( ( ( ( ordered_pair @ SV480 @ SV543 )
           != ( ordered_pair @ SV667 @ SV685 ) ) )
        = $true )
      | ( ( SV543 = SV685 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3192]) ).

thf(3295,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( ~ ( relation @ SV686 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
                  | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
                  | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) ) )
          | ( SV686
            = ( relation_inverse @ SV481 ) ) )
        = $true )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3195]) ).

thf(3296,plain,
    ! [SV481: $i,SV687: $i] :
      ( ( ( ~ ( relation @ SV687 ) )
        = $true )
      | ( ( ( SV687
           != ( relation_inverse @ SV481 ) )
          | ~ ( ~ ! [SY1067: $i,SY1068: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1067 @ SY1068 ) @ SV687 )
                    | ( in @ ( ordered_pair @ SY1068 @ SY1067 ) @ SV481 ) )
              | ~ ! [SY1069: $i,SY1070: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1070 @ SY1069 ) @ SV481 )
                    | ( in @ ( ordered_pair @ SY1069 @ SY1070 ) @ SV687 ) ) ) )
        = $true )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3196]) ).

thf(3297,plain,
    ! [SV688: $i,SV544: $i,SV668: $i,SV482: $i] :
      ( ( ( ~ ( in @ SV482 @ SV668 )
          | ~ ( in @ SV544 @ SV688 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV668 @ SV688 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3197]) ).

thf(3298,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ! [SY931: $i] :
            ( ! [SY932: $i] :
                ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY931 @ SY932 ) )
            | ( in @ SV482 @ SY931 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3198]) ).

thf(3299,plain,
    ! [SV544: $i,SV482: $i] :
      ( ( ! [SY933: $i,SY934: $i] :
            ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SY933 @ SY934 ) )
            | ( in @ SV544 @ SY934 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3199]) ).

thf(3300,plain,
    ! [SV623: $i,SV570: $i] :
      ( ( ( subset @ SV570 @ SV623 )
        = $false )
      | ( ( ~ ( subset @ SV623 @ SV570 ) )
        = $true )
      | ( ( SV570 = SV623 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3202]) ).

thf(3301,plain,
    ! [SV719: $i,SV689: $i] :
      ( ( ( SV689 != SV719 )
        | ( subset @ SV689 @ SV719 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3203]) ).

thf(3302,plain,
    ! [SV720: $i,SV690: $i] :
      ( ( ( SV690 != SV720 )
        | ( subset @ SV720 @ SV690 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3204]) ).

thf(3303,plain,
    ! [SV571: $i,SV624: $i] :
      ( ( ( in @ SV624 @ SV571 )
        = $false )
      | ( ( ( set_difference @ SV571 @ ( singleton @ SV624 ) )
          = SV571 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3205]) ).

thf(3304,plain,
    ! [SV484: $i,SV691: $i] :
      ( ( ( ~ ( relation @ SV691 ) )
        = $true )
      | ( ( ~ ( subset @ SV484 @ SV691 )
          | ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SV691 ) ) )
        = $true )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3207]) ).

thf(3305,plain,
    ! [SV484: $i,SV692: $i] :
      ( ( ( ~ ( relation @ SV692 ) )
        = $true )
      | ( ( ~ ( subset @ SV484 @ SV692 )
          | ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SV692 ) ) )
        = $true )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3208]) ).

thf(3306,plain,
    ! [SV573: $i,SV626: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV573 ) )
        = $false )
      | ( ( subset @ SV573 @ SV626 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3209]) ).

thf(3307,plain,
    ! [SV573: $i,SV626: $i] :
      ( ( ( ~ ~ ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV626 ) )
        = $false )
      | ( ( subset @ SV573 @ SV626 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3209]) ).

thf(3308,plain,
    ! [SV627: $i,SV574: $i,SV721: $i] :
      ( ( ( ~ ( in @ SV721 @ SV574 )
          | ( in @ SV721 @ SV627 ) )
        = $true )
      | ( ( subset @ SV574 @ SV627 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3210]) ).

thf(3309,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                    | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) )
                | ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                    | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) )
          | ~ ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
              | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 )
              | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) )
        = $false )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3211]) ).

thf(3310,plain,
    ! [SV629: $i,SV485: $i,SV670: $i] :
      ( ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1046: $i] :
                    ( ~ ( in @ SY1046 @ SV670 )
                    | ( in @ SY1046 @ SV485 )
                    | ( in @ SY1046 @ SV629 ) )
              | ~ ~ ( ~ ! [SY1047: $i] :
                          ( ~ ( in @ SY1047 @ SV485 )
                          | ( in @ SY1047 @ SV670 ) )
                    | ~ ! [SY1048: $i] :
                          ( ~ ( in @ SY1048 @ SV629 )
                          | ( in @ SY1048 @ SV670 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3212]) ).

thf(3311,plain,
    ! [SV693: $i] :
      ( ( ( SV693 = empty_set )
        = $true )
      | ( ( ! [SY1073: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SY1073 @ SV693 ) @ SV693 )
                          | ~ ~ ( in @ ( sK44_C @ SY1073 @ SV693 ) @ ( sK45_SY327 @ SY1073 @ SV693 ) ) )
                      | ~ ( in @ ( sK44_C @ SY1073 @ SV693 ) @ SY1073 ) )
                  | ~ ( ! [SY1074: $i] :
                          ( ~ ( in @ SY1074 @ SV693 )
                          | ( in @ ( sK44_C @ SY1073 @ SV693 ) @ SY1074 ) )
                      | ( in @ ( sK44_C @ SY1073 @ SV693 ) @ SY1073 ) ) )
              | ( SY1073
                = ( set_meet @ SV693 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3215]) ).

thf(3312,plain,
    ! [SV694: $i] :
      ( ( ( SV694 = empty_set )
        = $true )
      | ( ( ! [SY1075: $i] :
              ( ( SY1075
               != ( set_meet @ SV694 ) )
              | ~ ( ~ ! [SY1076: $i] :
                        ( ~ ( ~ ( in @ ( sK43_D @ SY1076 @ SY1075 @ SV694 ) @ SV694 )
                            | ~ ~ ( in @ SY1076 @ ( sK43_D @ SY1076 @ SY1075 @ SV694 ) ) )
                        | ( in @ SY1076 @ SY1075 ) )
                  | ~ ! [SY1077: $i] :
                        ( ~ ( in @ SY1077 @ SY1075 )
                        | ! [SY1078: $i] :
                            ( ~ ( in @ SY1078 @ SV694 )
                            | ( in @ SY1077 @ SY1078 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3216]) ).

thf(3313,plain,
    ! [SV695: $i] :
      ( ( ( ( SV695 != empty_set ) )
        = $true )
      | ( ( ! [SY1079: $i] :
              ( ( SY1079
               != ( set_meet @ SV695 ) )
              | ( SY1079 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3217]) ).

thf(3314,plain,
    ! [SV696: $i] :
      ( ( ( ( SV696 != empty_set ) )
        = $true )
      | ( ( ! [SY1080: $i] :
              ( ( SY1080 != empty_set )
              | ( SY1080
                = ( set_meet @ SV696 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3218]) ).

thf(3315,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ~ ( ! [SY1007: $i] :
                  ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SY1007 )
                  | ~ ( in @ SY1007 @ SV577 ) )
              | ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) ) )
        = $false )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3219]) ).

thf(3316,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ ( sK18_SY312 @ SV632 @ SV577 ) )
                  | ~ ( in @ ( sK18_SY312 @ SV632 @ SV577 ) @ SV577 ) )
              | ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) ) )
        = $false )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3219]) ).

thf(3317,plain,
    ! [SV633: $i,SV578: $i] :
      ( ( ( ~ ! [SY1008: $i] :
                ( ! [SY967: $i] :
                    ( ~ ( in @ SY1008 @ SY967 )
                    | ~ ( in @ SY967 @ SV578 ) )
                | ( in @ SY1008 @ SV633 ) )
          | ~ ! [SY1010: $i] :
                ( ~ ( in @ SY1010 @ SV633 )
                | ~ ( ~ ( in @ SY1010 @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) )
                    | ~ ( in @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) @ SV578 ) ) ) )
        = $false )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3220]) ).

thf(3318,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
              | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
              | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
          | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
                    | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
                | ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
                    | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) ) ) )
        = $false )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3221]) ).

thf(3319,plain,
    ! [SV635: $i,SV486: $i,SV672: $i] :
      ( ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1049: $i] :
                    ( ~ ( in @ SY1049 @ SV486 )
                    | ~ ( in @ SY1049 @ SV635 )
                    | ( in @ SY1049 @ SV672 ) )
              | ~ ~ ( ~ ! [SY1050: $i] :
                          ( ~ ( in @ SY1050 @ SV672 )
                          | ( in @ SY1050 @ SV486 ) )
                    | ~ ! [SY1051: $i] :
                          ( ~ ( in @ SY1051 @ SV672 )
                          | ( in @ SY1051 @ SV635 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3222]) ).

thf(3320,plain,
    ! [SV487: $i,SV636: $i] :
      ( ( ( subset @ SV636 @ ( sK32_B @ SV487 ) )
        = $false )
      | ( ( are_equipotent @ SV636 @ ( sK32_B @ SV487 ) )
        = $true )
      | ( ( in @ SV636 @ ( sK32_B @ SV487 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3223]) ).

thf(3321,plain,
    ! [SV487: $i,SV722: $i] :
      ( ( ~ ( in @ SV722 @ ( sK32_B @ SV487 ) )
        | ( in @ ( powerset @ SV722 ) @ ( sK32_B @ SV487 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3224]) ).

thf(3322,plain,
    ! [SV487: $i] :
      ( ( ~ ! [SY855: $i,SY856: $i] :
              ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
              | ~ ( subset @ SY856 @ SY855 )
              | ( in @ SY856 @ ( sK32_B @ SV487 ) ) )
        | ~ ( in @ SV487 @ ( sK32_B @ SV487 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[3225]) ).

thf(3323,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
              | ~ ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) ) )
        = $false )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3226]) ).

thf(3324,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( ~ ( ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
              | ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) ) )
        = $false )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3226]) ).

thf(3325,plain,
    ! [SV584: $i,SV638: $i] :
      ( ( ( ~ ! [SY1016: $i] :
                ( ~ ( in @ SY1016 @ SV638 )
                | ( subset @ SY1016 @ SV584 ) )
          | ~ ! [SY1017: $i] :
                ( ~ ( subset @ SY1017 @ SV584 )
                | ( in @ SY1017 @ SV638 ) ) )
        = $false )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3227]) ).

thf(3326,plain,
    ! [SV585: $i,SV639: $i] :
      ( ( ( ~ ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV585 ) )
        = $false )
      | ( ( disjoint @ SV585 @ SV639 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3228]) ).

thf(3327,plain,
    ! [SV585: $i,SV639: $i] :
      ( ( ( ~ ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV639 ) )
        = $false )
      | ( ( disjoint @ SV585 @ SV639 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3228]) ).

thf(3328,plain,
    ! [SV640: $i,SV586: $i,SV697: $i] :
      ( ( ( ~ ( in @ SV697 @ SV586 ) )
        = $true )
      | ( ( ~ ( in @ SV697 @ SV640 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV586 @ SV640 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3229]) ).

thf(3329,plain,
    ! [SV488: $i,SV698: $i] :
      ( ( ( ~ ( ~ ( ! [SY1081: $i] :
                      ~ ( in @ ( ordered_pair @ SY1081 @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
                  | ~ ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV698 @ SV488 ) @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
                  | ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) ) ) )
        = $true )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3230]) ).

thf(3330,plain,
    ! [SV488: $i,SV699: $i] :
      ( ( ( ( SV699
           != ( relation_rng @ SV488 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1082: $i] :
                    ( ! [SY861: $i] :
                        ~ ( in @ ( ordered_pair @ SY861 @ SY1082 ) @ SV488 )
                    | ( in @ SY1082 @ SV699 ) )
              | ~ ! [SY1084: $i] :
                    ( ~ ( in @ SY1084 @ SV699 )
                    | ( in @ ( ordered_pair @ ( sK36_D @ SY1084 @ SV699 @ SV488 ) @ SY1084 ) @ SV488 ) ) ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3231]) ).

thf(3331,plain,
    ! [SV700: $i] :
      ( ( ( empty @ SV700 )
        = $true )
      | ( ( ! [SY1085: $i] :
              ( ~ ( element @ SY1085 @ SV700 )
              | ( in @ SY1085 @ SV700 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3232]) ).

thf(3332,plain,
    ! [SV701: $i] :
      ( ( ( empty @ SV701 )
        = $true )
      | ( ( ! [SY1086: $i] :
              ( ~ ( in @ SY1086 @ SV701 )
              | ( element @ SY1086 @ SV701 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3233]) ).

thf(3333,plain,
    ! [SV702: $i] :
      ( ( ( ~ ( empty @ SV702 ) )
        = $true )
      | ( ( ! [SY1087: $i] :
              ( ~ ( element @ SY1087 @ SV702 )
              | ( empty @ SY1087 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3234]) ).

thf(3334,plain,
    ! [SV703: $i] :
      ( ( ( ~ ( empty @ SV703 ) )
        = $true )
      | ( ( ! [SY1088: $i] :
              ( ~ ( empty @ SY1088 )
              | ( element @ SY1088 @ SV703 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3235]) ).

thf(3335,plain,
    ! [SV643: $i,SV589: $i] :
      ( ( ( SV589 = empty_set )
        = $true )
      | ( ( SV589
          = ( singleton @ SV643 ) )
        = $true )
      | ( ( subset @ SV589 @ ( singleton @ SV643 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3238]) ).

thf(3336,plain,
    ! [SV704: $i] :
      ( ( ( ( SV704 != empty_set ) )
        = $true )
      | ( ( ! [SY1089: $i] : ( subset @ SV704 @ ( singleton @ SY1089 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3239]) ).

thf(3337,plain,
    ! [SV723: $i,SV705: $i] :
      ( ( ( SV705
         != ( singleton @ SV723 ) )
        | ( subset @ SV705 @ ( singleton @ SV723 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3240]) ).

thf(3338,plain,
    ! [SV591: $i,SV706: $i] :
      ( ( ( in @ SV706 @ SV591 )
        = $false )
      | ( ( SV591 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3241]) ).

thf(3339,plain,
    ! [SV592: $i] :
      ( ( ( ( relation_dom @ SV592 )
          = empty_set )
        = $false )
      | ( ( SV592 = empty_set )
        = $true )
      | ( ( relation @ SV592 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3242]) ).

thf(3340,plain,
    ! [SV593: $i] :
      ( ( ( ( relation_rng @ SV593 )
          = empty_set )
        = $false )
      | ( ( SV593 = empty_set )
        = $true )
      | ( ( relation @ SV593 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3243]) ).

thf(3341,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
        = $false )
      | ( ( ~ ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 ) )
        = $true )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3246]) ).

thf(3342,plain,
    ! [SV600: $i] :
      ( ( ( ! [SY984: $i,SY985: $i] :
              ( ( sK48_B @ SV600 )
             != ( ordered_pair @ SY984 @ SY985 ) ) )
        = $true )
      | ( ( relation @ SV600 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3250]) ).

thf(3343,plain,
    ! [SV600: $i] :
      ( ( ( in @ ( sK48_B @ SV600 ) @ SV600 )
        = $true )
      | ( ( relation @ SV600 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3251]) ).

thf(3344,plain,
    ! [SV601: $i,SV707: $i] :
      ( ( ( SV707
          = ( ordered_pair @ ( sK46_C @ SV707 @ SV601 ) @ ( sK47_SY329 @ SV707 @ SV601 ) ) )
        = $true )
      | ( ( ~ ( in @ SV707 @ SV601 ) )
        = $true )
      | ( ( relation @ SV601 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3252]) ).

thf(3345,plain,
    ! [SV648: $i,SV673: $i,SV491: $i] :
      ( ( ( ~ ( in @ SV491 @ SV673 ) )
        = $true )
      | ( ( ~ ( in @ SV648 @ SV673 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV491 @ SV648 ) @ SV673 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3253]) ).

thf(3346,plain,
    ! [SV724: $i,SV491: $i] :
      ( ( ! [SY1098: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV491 @ SV724 ) @ SY1098 )
            | ( in @ SV491 @ SY1098 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3254]) ).

thf(3347,plain,
    ! [SV725: $i,SV491: $i] :
      ( ( ! [SY1099: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV491 @ SV725 ) @ SY1099 )
            | ( in @ SV725 @ SY1099 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3255]) ).

thf(3348,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                    | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                     != SV492 ) )
                | ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                    | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                     != SV649 ) ) )
          | ~ ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
              | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                = SV492 )
              | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                = SV649 ) ) )
        = $false )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3256]) ).

thf(3349,plain,
    ! [SV650: $i,SV492: $i,SV675: $i] :
      ( ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1052: $i] :
                    ( ~ ( in @ SY1052 @ SV675 )
                    | ( SY1052 = SV492 )
                    | ( SY1052 = SV650 ) )
              | ~ ~ ( ~ ! [SY1053: $i] :
                          ( ( SY1053 != SV492 )
                          | ( in @ SY1053 @ SV675 ) )
                    | ~ ! [SY1054: $i] :
                          ( ( SY1054 != SV650 )
                          | ( in @ SY1054 @ SV675 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3257]) ).

thf(3350,plain,
    ! [SV708: $i,SV547: $i,SV676: $i,SV493: $i] :
      ( ( ( ~ ( in @ SV493 @ SV676 )
          | ~ ( in @ SV547 @ SV708 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV676 @ SV708 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3258]) ).

thf(3351,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ! [SY937: $i] :
            ( ! [SY938: $i] :
                ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY937 @ SY938 ) )
            | ( in @ SV493 @ SY937 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3259]) ).

thf(3352,plain,
    ! [SV547: $i,SV493: $i] :
      ( ( ! [SY939: $i,SY940: $i] :
            ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SY939 @ SY940 ) )
            | ( in @ SV547 @ SY940 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3260]) ).

thf(3353,plain,
    ! [SV651: $i,SV494: $i,SV677: $i] :
      ( ( ( relation @ SV677 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV494 @ SV651 ) @ SV677 )
          | ( in @ SV494 @ ( relation_dom @ SV677 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3261]) ).

thf(3354,plain,
    ! [SV652: $i,SV494: $i,SV678: $i] :
      ( ( ( relation @ SV678 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV494 @ SV652 ) @ SV678 )
          | ( in @ SV652 @ ( relation_rng @ SV678 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3262]) ).

thf(3355,plain,
    ! [SV654: $i,SV603: $i,SV709: $i] :
      ( ( ( in @ SV709 @ ( set_intersection2 @ SV603 @ SV654 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV603 @ SV654 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3263]) ).

thf(3356,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( ~ ( ( ( sK29_C @ SV655 @ SV604 )
               != SV604 )
              | ~ ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) ) )
        = $false )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3264]) ).

thf(3357,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( ~ ( ( ( sK29_C @ SV655 @ SV604 )
                = SV604 )
              | ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) ) )
        = $false )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3264]) ).

thf(3358,plain,
    ! [SV656: $i,SV605: $i] :
      ( ( ( ~ ! [SY1028: $i] :
                ( ( SY1028 != SV605 )
                | ( in @ SY1028 @ SV656 ) )
          | ~ ! [SY1029: $i] :
                ( ~ ( in @ SY1029 @ SV656 )
                | ( SY1029 = SV605 ) ) )
        = $false )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3265]) ).

thf(3359,plain,
    ! [SV657: $i,SV606: $i] :
      ( ( ( subset @ SV606 @ SV657 )
        = $false )
      | ( ( SV606 = SV657 )
        = $true )
      | ( ( proper_subset @ SV606 @ SV657 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3266]) ).

thf(3360,plain,
    ! [SV726: $i,SV710: $i] :
      ( ( ~ ( proper_subset @ SV710 @ SV726 )
        | ( SV710 != SV726 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3267]) ).

thf(3361,plain,
    ! [SV727: $i,SV711: $i] :
      ( ( ~ ( proper_subset @ SV711 @ SV727 )
        | ( subset @ SV711 @ SV727 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3268]) ).

thf(3362,plain,
    ! [SV679: $i,SV658: $i,SV495: $i] :
      ( ( ( ~ ( ! [SY1056: $i,SY1057: $i] :
                  ( ~ ( in @ SY1056 @ SV495 )
                  | ~ ( in @ SY1057 @ SV658 )
                  | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
                   != ( ordered_pair @ SY1056 @ SY1057 ) ) )
              | ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
          | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
                        | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) )
                  | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
                   != ( ordered_pair @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) ) ) )
              | ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) ) )
        = $false )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3269]) ).

thf(3363,plain,
    ! [SV659: $i,SV495: $i,SV680: $i] :
      ( ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1058: $i] :
                    ( ! [SY1035: $i,SY1036: $i] :
                        ( ~ ( in @ SY1035 @ SV495 )
                        | ~ ( in @ SY1036 @ SV659 )
                        | ( SY1058
                         != ( ordered_pair @ SY1035 @ SY1036 ) ) )
                    | ( in @ SY1058 @ SV680 ) )
              | ~ ! [SY1061: $i] :
                    ( ~ ( in @ SY1061 @ SV680 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                              | ~ ( in @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
                        | ( SY1061
                         != ( ordered_pair @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3270]) ).

thf(3364,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
              | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
              | ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
          | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
                    | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
                | ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
                    | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) ) ) )
        = $false )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3273]) ).

thf(3365,plain,
    ! [SV663: $i,SV497: $i,SV682: $i] :
      ( ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1062: $i] :
                    ( ~ ( in @ SY1062 @ SV497 )
                    | ( in @ SY1062 @ SV663 )
                    | ( in @ SY1062 @ SV682 ) )
              | ~ ~ ( ~ ! [SY1063: $i] :
                          ( ~ ( in @ SY1063 @ SV682 )
                          | ( in @ SY1063 @ SV497 ) )
                    | ~ ! [SY1064: $i] :
                          ( ~ ( in @ SY1064 @ SV682 )
                          | ~ ( in @ SY1064 @ SV663 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3274]) ).

thf(3366,plain,
    ! [SV498: $i,SV712: $i] :
      ( ( ( ~ ( ~ ( ! [SY1093: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ SY1093 ) @ SV498 )
                  | ~ ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ ( sK41_SY326 @ SV712 @ SV498 ) ) @ SV498 )
                  | ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) ) ) )
        = $true )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3275]) ).

thf(3367,plain,
    ! [SV498: $i,SV713: $i] :
      ( ( ( ( SV713
           != ( relation_dom @ SV498 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1094: $i] :
                    ( ! [SY909: $i] :
                        ~ ( in @ ( ordered_pair @ SY1094 @ SY909 ) @ SV498 )
                    | ( in @ SY1094 @ SV713 ) )
              | ~ ! [SY1096: $i] :
                    ( ~ ( in @ SY1096 @ SV713 )
                    | ( in @ ( ordered_pair @ SY1096 @ ( sK39_D @ SY1096 @ SV713 @ SV498 ) ) @ SV498 ) ) ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3276]) ).

thf(3368,plain,
    ! [SV664: $i,SV613: $i,SV476: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV476 @ SV613 ) @ SV664 ) )
        = $true )
      | ( ( in @ SV476 @ ( relation_field @ SV664 ) )
        = $true )
      | ( ( relation @ SV664 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3281]) ).

thf(3369,plain,
    ! [SV665: $i,SV614: $i,SV476: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV476 @ SV614 ) @ SV665 ) )
        = $true )
      | ( ( in @ SV614 @ ( relation_field @ SV665 ) )
        = $true )
      | ( ( relation @ SV665 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3282]) ).

thf(3370,plain,
    ! [SV477: $i,SV564: $i] :
      ( ( ( ! [SY942: $i] :
              ( ~ ( relation @ SY942 )
              | ~ ( ~ ( ! [SY943: $i] :
                          ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ SY943 ) @ SV477 )
                          | ~ ( in @ ( ordered_pair @ SY943 @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                      | ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) )
                  | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) ) @ SV477 )
                          | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SV564 ) )
                      | ( in @ ( ordered_pair @ ( sK10_D @ SY942 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SY942 @ SV564 @ SV477 ) ) @ SY942 ) ) )
              | ( SY942
                = ( relation_composition @ SV477 @ SV564 ) ) ) )
        = $true )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3283]) ).

thf(3371,plain,
    ! [SV564: $i,SV477: $i] :
      ( ( ( ! [SY944: $i] :
              ( ~ ( relation @ SY944 )
              | ( SY944
               != ( relation_composition @ SV477 @ SV564 ) )
              | ~ ( ~ ! [SY945: $i,SY946: $i] :
                        ( ! [SY947: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY945 @ SY947 ) @ SV477 )
                            | ~ ( in @ ( ordered_pair @ SY947 @ SY946 ) @ SV564 ) )
                        | ( in @ ( ordered_pair @ SY945 @ SY946 ) @ SY944 ) )
                  | ~ ! [SY948: $i,SY949: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY948 @ SY949 ) @ SY944 )
                        | ~ ( ~ ( in @ ( ordered_pair @ SY948 @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) ) @ SV477 )
                            | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY949 @ SY948 @ SY944 @ SV564 @ SV477 ) @ SY949 ) @ SV564 ) ) ) ) ) )
        = $true )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3284]) ).

thf(3372,plain,
    ! [SV478: $i,SV714: $i] :
      ( ( ( ~ ( ~ ! [SY1097: $i] :
                    ( ~ ( subset @ SY1097 @ SV714 )
                    | ( in @ SY1097 @ ( sK3_SY300 @ SV714 @ SV478 ) ) )
              | ~ ( in @ ( sK3_SY300 @ SV714 @ SV478 ) @ ( sK2_B @ SV478 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3286]) ).

thf(3373,plain,
    ! [SV478: $i] :
      ( ( ~ ! [SY812: $i,SY813: $i] :
              ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
              | ~ ( subset @ SY813 @ SY812 )
              | ( in @ SY813 @ ( sK2_B @ SV478 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3287]) ).

thf(3374,plain,
    ! [SV478: $i] :
      ( ( ~ ( in @ SV478 @ ( sK2_B @ SV478 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3287]) ).

thf(3375,plain,
    ! [SV683: $i] :
      ( ( ( SV683 = empty_set )
        = $false )
      | ( ( ! [SY1065: $i] : ( subset @ SV683 @ ( singleton @ SY1065 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3291]) ).

thf(3376,plain,
    ! [SV717: $i,SV684: $i] :
      ( ( ( ( SV684
           != ( singleton @ SV717 ) ) )
        = $true )
      | ( ( subset @ SV684 @ ( singleton @ SV717 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3292]) ).

thf(3377,plain,
    ! [SV718: $i,SV666: $i,SV543: $i,SV480: $i] :
      ( ( ( ( ordered_pair @ SV480 @ SV543 )
          = ( ordered_pair @ SV666 @ SV718 ) )
        = $false )
      | ( ( SV480 = SV666 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3293]) ).

thf(3378,plain,
    ! [SV685: $i,SV667: $i,SV543: $i,SV480: $i] :
      ( ( ( ( ordered_pair @ SV480 @ SV543 )
          = ( ordered_pair @ SV667 @ SV685 ) )
        = $false )
      | ( ( SV543 = SV685 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3294]) ).

thf(3379,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( relation @ SV686 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
                  | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
                  | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) ) )
          | ( SV686
            = ( relation_inverse @ SV481 ) ) )
        = $true )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3295]) ).

thf(3380,plain,
    ! [SV481: $i,SV687: $i] :
      ( ( ( relation @ SV687 )
        = $false )
      | ( ( ( SV687
           != ( relation_inverse @ SV481 ) )
          | ~ ( ~ ! [SY1067: $i,SY1068: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1067 @ SY1068 ) @ SV687 )
                    | ( in @ ( ordered_pair @ SY1068 @ SY1067 ) @ SV481 ) )
              | ~ ! [SY1069: $i,SY1070: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1070 @ SY1069 ) @ SV481 )
                    | ( in @ ( ordered_pair @ SY1069 @ SY1070 ) @ SV687 ) ) ) )
        = $true )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3296]) ).

thf(3381,plain,
    ! [SV688: $i,SV544: $i,SV668: $i,SV482: $i] :
      ( ( ( ~ ( in @ SV482 @ SV668 ) )
        = $true )
      | ( ( ~ ( in @ SV544 @ SV688 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV668 @ SV688 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3297]) ).

thf(3382,plain,
    ! [SV728: $i,SV544: $i,SV482: $i] :
      ( ( ! [SY1100: $i] :
            ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV728 @ SY1100 ) )
        | ( in @ SV482 @ SV728 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3298]) ).

thf(3383,plain,
    ! [SV729: $i,SV544: $i,SV482: $i] :
      ( ( ! [SY1101: $i] :
            ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV729 @ SY1101 ) )
            | ( in @ SV544 @ SY1101 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3299]) ).

thf(3384,plain,
    ! [SV570: $i,SV623: $i] :
      ( ( ( subset @ SV623 @ SV570 )
        = $false )
      | ( ( subset @ SV570 @ SV623 )
        = $false )
      | ( ( SV570 = SV623 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3300]) ).

thf(3385,plain,
    ! [SV719: $i,SV689: $i] :
      ( ( ( ( SV689 != SV719 ) )
        = $true )
      | ( ( subset @ SV689 @ SV719 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3301]) ).

thf(3386,plain,
    ! [SV720: $i,SV690: $i] :
      ( ( ( ( SV690 != SV720 ) )
        = $true )
      | ( ( subset @ SV720 @ SV690 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3302]) ).

thf(3387,plain,
    ! [SV484: $i,SV691: $i] :
      ( ( ( relation @ SV691 )
        = $false )
      | ( ( ~ ( subset @ SV484 @ SV691 )
          | ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SV691 ) ) )
        = $true )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3304]) ).

thf(3388,plain,
    ! [SV484: $i,SV692: $i] :
      ( ( ( relation @ SV692 )
        = $false )
      | ( ( ~ ( subset @ SV484 @ SV692 )
          | ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SV692 ) ) )
        = $true )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3305]) ).

thf(3389,plain,
    ! [SV573: $i,SV626: $i] :
      ( ( ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV573 )
        = $true )
      | ( ( subset @ SV573 @ SV626 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3306]) ).

thf(3390,plain,
    ! [SV573: $i,SV626: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV626 ) )
        = $true )
      | ( ( subset @ SV573 @ SV626 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3307]) ).

thf(3391,plain,
    ! [SV627: $i,SV574: $i,SV721: $i] :
      ( ( ( ~ ( in @ SV721 @ SV574 ) )
        = $true )
      | ( ( in @ SV721 @ SV627 )
        = $true )
      | ( ( subset @ SV574 @ SV627 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3308]) ).

thf(3392,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                    | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) )
                | ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                    | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) ) )
        = $false )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3309]) ).

thf(3393,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
              | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 )
              | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) )
        = $false )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3309]) ).

thf(3394,plain,
    ! [SV629: $i,SV485: $i,SV670: $i] :
      ( ( ( ~ ! [SY1046: $i] :
                ( ~ ( in @ SY1046 @ SV670 )
                | ( in @ SY1046 @ SV485 )
                | ( in @ SY1046 @ SV629 ) )
          | ~ ~ ( ~ ! [SY1047: $i] :
                      ( ~ ( in @ SY1047 @ SV485 )
                      | ( in @ SY1047 @ SV670 ) )
                | ~ ! [SY1048: $i] :
                      ( ~ ( in @ SY1048 @ SV629 )
                      | ( in @ SY1048 @ SV670 ) ) ) )
        = $false )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3310]) ).

thf(3395,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 )
                      | ~ ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) ) )
                  | ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
              | ~ ( ! [SY1102: $i] :
                      ( ~ ( in @ SY1102 @ SV693 )
                      | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SY1102 ) )
                  | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) ) )
          | ( SV730
            = ( set_meet @ SV693 ) ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3311]) ).

thf(3396,plain,
    ! [SV694: $i,SV731: $i] :
      ( ( ( ( SV731
           != ( set_meet @ SV694 ) )
          | ~ ( ~ ! [SY1103: $i] :
                    ( ~ ( ~ ( in @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) @ SV694 )
                        | ~ ~ ( in @ SY1103 @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) ) )
                    | ( in @ SY1103 @ SV731 ) )
              | ~ ! [SY1104: $i] :
                    ( ~ ( in @ SY1104 @ SV731 )
                    | ! [SY1078: $i] :
                        ( ~ ( in @ SY1078 @ SV694 )
                        | ( in @ SY1104 @ SY1078 ) ) ) ) )
        = $true )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3312]) ).

thf(3397,plain,
    ! [SV695: $i] :
      ( ( ( SV695 = empty_set )
        = $false )
      | ( ( ! [SY1079: $i] :
              ( ( SY1079
               != ( set_meet @ SV695 ) )
              | ( SY1079 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3313]) ).

thf(3398,plain,
    ! [SV696: $i] :
      ( ( ( SV696 = empty_set )
        = $false )
      | ( ( ! [SY1080: $i] :
              ( ( SY1080 != empty_set )
              | ( SY1080
                = ( set_meet @ SV696 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3314]) ).

thf(3399,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ! [SY1007: $i] :
              ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SY1007 )
              | ~ ( in @ SY1007 @ SV577 ) )
          | ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3315]) ).

thf(3400,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ ( sK18_SY312 @ SV632 @ SV577 ) )
              | ~ ( in @ ( sK18_SY312 @ SV632 @ SV577 ) @ SV577 ) )
          | ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3316]) ).

thf(3401,plain,
    ! [SV633: $i,SV578: $i] :
      ( ( ( ~ ! [SY1008: $i] :
                ( ! [SY967: $i] :
                    ( ~ ( in @ SY1008 @ SY967 )
                    | ~ ( in @ SY967 @ SV578 ) )
                | ( in @ SY1008 @ SV633 ) ) )
        = $false )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3317]) ).

thf(3402,plain,
    ! [SV578: $i,SV633: $i] :
      ( ( ( ~ ! [SY1010: $i] :
                ( ~ ( in @ SY1010 @ SV633 )
                | ~ ( ~ ( in @ SY1010 @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) )
                    | ~ ( in @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) @ SV578 ) ) ) )
        = $false )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3317]) ).

thf(3403,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
              | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
              | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) ) )
        = $false )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3318]) ).

thf(3404,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
                    | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
                | ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
                    | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) ) ) )
        = $false )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3318]) ).

thf(3405,plain,
    ! [SV672: $i,SV635: $i,SV486: $i] :
      ( ( ( ~ ! [SY1049: $i] :
                ( ~ ( in @ SY1049 @ SV486 )
                | ~ ( in @ SY1049 @ SV635 )
                | ( in @ SY1049 @ SV672 ) )
          | ~ ~ ( ~ ! [SY1050: $i] :
                      ( ~ ( in @ SY1050 @ SV672 )
                      | ( in @ SY1050 @ SV486 ) )
                | ~ ! [SY1051: $i] :
                      ( ~ ( in @ SY1051 @ SV672 )
                      | ( in @ SY1051 @ SV635 ) ) ) )
        = $false )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3319]) ).

thf(3406,plain,
    ! [SV487: $i,SV722: $i] :
      ( ( ( ~ ( in @ SV722 @ ( sK32_B @ SV487 ) ) )
        = $true )
      | ( ( in @ ( powerset @ SV722 ) @ ( sK32_B @ SV487 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3321]) ).

thf(3407,plain,
    ! [SV487: $i] :
      ( ( ~ ! [SY855: $i,SY856: $i] :
              ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
              | ~ ( subset @ SY856 @ SY855 )
              | ( in @ SY856 @ ( sK32_B @ SV487 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3322]) ).

thf(3408,plain,
    ! [SV487: $i] :
      ( ( ~ ( in @ SV487 @ ( sK32_B @ SV487 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[3322]) ).

thf(3409,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( ~ ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
          | ~ ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3323]) ).

thf(3410,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
          | ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3324]) ).

thf(3411,plain,
    ! [SV584: $i,SV638: $i] :
      ( ( ( ~ ! [SY1016: $i] :
                ( ~ ( in @ SY1016 @ SV638 )
                | ( subset @ SY1016 @ SV584 ) ) )
        = $false )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3325]) ).

thf(3412,plain,
    ! [SV638: $i,SV584: $i] :
      ( ( ( ~ ! [SY1017: $i] :
                ( ~ ( subset @ SY1017 @ SV584 )
                | ( in @ SY1017 @ SV638 ) ) )
        = $false )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3325]) ).

thf(3413,plain,
    ! [SV585: $i,SV639: $i] :
      ( ( ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV585 )
        = $true )
      | ( ( disjoint @ SV585 @ SV639 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3326]) ).

thf(3414,plain,
    ! [SV585: $i,SV639: $i] :
      ( ( ( in @ ( sK31_C @ SV639 @ SV585 ) @ SV639 )
        = $true )
      | ( ( disjoint @ SV585 @ SV639 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3327]) ).

thf(3415,plain,
    ! [SV640: $i,SV586: $i,SV697: $i] :
      ( ( ( in @ SV697 @ SV586 )
        = $false )
      | ( ( ~ ( in @ SV697 @ SV640 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV586 @ SV640 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3328]) ).

thf(3416,plain,
    ! [SV488: $i,SV698: $i] :
      ( ( ( ~ ( ! [SY1081: $i] :
                  ~ ( in @ ( ordered_pair @ SY1081 @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
              | ~ ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV698 @ SV488 ) @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
              | ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) ) )
        = $false )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3329]) ).

thf(3417,plain,
    ! [SV488: $i,SV699: $i] :
      ( ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1082: $i] :
                    ( ! [SY861: $i] :
                        ~ ( in @ ( ordered_pair @ SY861 @ SY1082 ) @ SV488 )
                    | ( in @ SY1082 @ SV699 ) )
              | ~ ! [SY1084: $i] :
                    ( ~ ( in @ SY1084 @ SV699 )
                    | ( in @ ( ordered_pair @ ( sK36_D @ SY1084 @ SV699 @ SV488 ) @ SY1084 ) @ SV488 ) ) ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3330]) ).

thf(3418,plain,
    ! [SV700: $i,SV732: $i] :
      ( ( ( ~ ( element @ SV732 @ SV700 )
          | ( in @ SV732 @ SV700 ) )
        = $true )
      | ( ( empty @ SV700 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3331]) ).

thf(3419,plain,
    ! [SV701: $i,SV733: $i] :
      ( ( ( ~ ( in @ SV733 @ SV701 )
          | ( element @ SV733 @ SV701 ) )
        = $true )
      | ( ( empty @ SV701 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3332]) ).

thf(3420,plain,
    ! [SV702: $i] :
      ( ( ( empty @ SV702 )
        = $false )
      | ( ( ! [SY1087: $i] :
              ( ~ ( element @ SY1087 @ SV702 )
              | ( empty @ SY1087 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3333]) ).

thf(3421,plain,
    ! [SV703: $i] :
      ( ( ( empty @ SV703 )
        = $false )
      | ( ( ! [SY1088: $i] :
              ( ~ ( empty @ SY1088 )
              | ( element @ SY1088 @ SV703 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3334]) ).

thf(3422,plain,
    ! [SV704: $i] :
      ( ( ( SV704 = empty_set )
        = $false )
      | ( ( ! [SY1089: $i] : ( subset @ SV704 @ ( singleton @ SY1089 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3336]) ).

thf(3423,plain,
    ! [SV723: $i,SV705: $i] :
      ( ( ( ( SV705
           != ( singleton @ SV723 ) ) )
        = $true )
      | ( ( subset @ SV705 @ ( singleton @ SV723 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3337]) ).

thf(3424,plain,
    ! [SV490: $i,SV546: $i] :
      ( ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV546 )
        = $false )
      | ( ( in @ ( sK4_C @ SV546 @ SV490 ) @ SV490 )
        = $false )
      | ( ( SV490 = SV546 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3341]) ).

thf(3425,plain,
    ! [SV734: $i,SV600: $i] :
      ( ( ( ! [SY1106: $i] :
              ( ( sK48_B @ SV600 )
             != ( ordered_pair @ SV734 @ SY1106 ) ) )
        = $true )
      | ( ( relation @ SV600 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3342]) ).

thf(3426,plain,
    ! [SV601: $i,SV707: $i] :
      ( ( ( in @ SV707 @ SV601 )
        = $false )
      | ( ( SV707
          = ( ordered_pair @ ( sK46_C @ SV707 @ SV601 ) @ ( sK47_SY329 @ SV707 @ SV601 ) ) )
        = $true )
      | ( ( relation @ SV601 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3344]) ).

thf(3427,plain,
    ! [SV648: $i,SV673: $i,SV491: $i] :
      ( ( ( in @ SV491 @ SV673 )
        = $false )
      | ( ( ~ ( in @ SV648 @ SV673 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV491 @ SV648 ) @ SV673 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3345]) ).

thf(3428,plain,
    ! [SV735: $i,SV724: $i,SV491: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV491 @ SV724 ) @ SV735 )
        | ( in @ SV491 @ SV735 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3346]) ).

thf(3429,plain,
    ! [SV736: $i,SV725: $i,SV491: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV491 @ SV725 ) @ SV736 )
        | ( in @ SV725 @ SV736 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3347]) ).

thf(3430,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                    | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                     != SV492 ) )
                | ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                    | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                     != SV649 ) ) ) )
        = $false )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3348]) ).

thf(3431,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
              | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                = SV492 )
              | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                = SV649 ) ) )
        = $false )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3348]) ).

thf(3432,plain,
    ! [SV650: $i,SV492: $i,SV675: $i] :
      ( ( ( ~ ! [SY1052: $i] :
                ( ~ ( in @ SY1052 @ SV675 )
                | ( SY1052 = SV492 )
                | ( SY1052 = SV650 ) )
          | ~ ~ ( ~ ! [SY1053: $i] :
                      ( ( SY1053 != SV492 )
                      | ( in @ SY1053 @ SV675 ) )
                | ~ ! [SY1054: $i] :
                      ( ( SY1054 != SV650 )
                      | ( in @ SY1054 @ SV675 ) ) ) )
        = $false )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3349]) ).

thf(3433,plain,
    ! [SV708: $i,SV547: $i,SV676: $i,SV493: $i] :
      ( ( ( ~ ( in @ SV493 @ SV676 ) )
        = $true )
      | ( ( ~ ( in @ SV547 @ SV708 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV676 @ SV708 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3350]) ).

thf(3434,plain,
    ! [SV737: $i,SV547: $i,SV493: $i] :
      ( ( ! [SY1107: $i] :
            ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV737 @ SY1107 ) )
        | ( in @ SV493 @ SV737 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3351]) ).

thf(3435,plain,
    ! [SV738: $i,SV547: $i,SV493: $i] :
      ( ( ! [SY1108: $i] :
            ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV738 @ SY1108 ) )
            | ( in @ SV547 @ SY1108 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3352]) ).

thf(3436,plain,
    ! [SV677: $i,SV651: $i,SV494: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV494 @ SV651 ) @ SV677 ) )
        = $true )
      | ( ( in @ SV494 @ ( relation_dom @ SV677 ) )
        = $true )
      | ( ( relation @ SV677 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3353]) ).

thf(3437,plain,
    ! [SV678: $i,SV652: $i,SV494: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV494 @ SV652 ) @ SV678 ) )
        = $true )
      | ( ( in @ SV652 @ ( relation_rng @ SV678 ) )
        = $true )
      | ( ( relation @ SV678 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3354]) ).

thf(3438,plain,
    ! [SV709: $i,SV654: $i,SV603: $i] :
      ( ( ( disjoint @ SV603 @ SV654 )
        = $false )
      | ( ( in @ SV709 @ ( set_intersection2 @ SV603 @ SV654 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3355]) ).

thf(3439,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( ( ( sK29_C @ SV655 @ SV604 )
           != SV604 )
          | ~ ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) )
        = $true )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3356]) ).

thf(3440,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( ( ( sK29_C @ SV655 @ SV604 )
            = SV604 )
          | ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) )
        = $true )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3357]) ).

thf(3441,plain,
    ! [SV656: $i,SV605: $i] :
      ( ( ( ~ ! [SY1028: $i] :
                ( ( SY1028 != SV605 )
                | ( in @ SY1028 @ SV656 ) ) )
        = $false )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3358]) ).

thf(3442,plain,
    ! [SV605: $i,SV656: $i] :
      ( ( ( ~ ! [SY1029: $i] :
                ( ~ ( in @ SY1029 @ SV656 )
                | ( SY1029 = SV605 ) ) )
        = $false )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3358]) ).

thf(3443,plain,
    ! [SV726: $i,SV710: $i] :
      ( ( ( ~ ( proper_subset @ SV710 @ SV726 ) )
        = $true )
      | ( ( ( SV710 != SV726 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3360]) ).

thf(3444,plain,
    ! [SV727: $i,SV711: $i] :
      ( ( ( ~ ( proper_subset @ SV711 @ SV727 ) )
        = $true )
      | ( ( subset @ SV711 @ SV727 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3361]) ).

thf(3445,plain,
    ! [SV679: $i,SV658: $i,SV495: $i] :
      ( ( ( ~ ( ! [SY1056: $i,SY1057: $i] :
                  ( ~ ( in @ SY1056 @ SV495 )
                  | ~ ( in @ SY1057 @ SV658 )
                  | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
                   != ( ordered_pair @ SY1056 @ SY1057 ) ) )
              | ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) ) )
        = $false )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3362]) ).

thf(3446,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
                        | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) )
                  | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
                   != ( ordered_pair @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) ) ) )
              | ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) ) )
        = $false )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3362]) ).

thf(3447,plain,
    ! [SV680: $i,SV659: $i,SV495: $i] :
      ( ( ( ~ ! [SY1058: $i] :
                ( ! [SY1035: $i,SY1036: $i] :
                    ( ~ ( in @ SY1035 @ SV495 )
                    | ~ ( in @ SY1036 @ SV659 )
                    | ( SY1058
                     != ( ordered_pair @ SY1035 @ SY1036 ) ) )
                | ( in @ SY1058 @ SV680 ) )
          | ~ ! [SY1061: $i] :
                ( ~ ( in @ SY1061 @ SV680 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                          | ~ ( in @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
                    | ( SY1061
                     != ( ordered_pair @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) ) ) ) ) )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3363]) ).

thf(3448,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
              | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
              | ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) ) )
        = $false )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3364]) ).

thf(3449,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
                    | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
                | ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
                    | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) ) ) )
        = $false )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3364]) ).

thf(3450,plain,
    ! [SV682: $i,SV663: $i,SV497: $i] :
      ( ( ( ~ ! [SY1062: $i] :
                ( ~ ( in @ SY1062 @ SV497 )
                | ( in @ SY1062 @ SV663 )
                | ( in @ SY1062 @ SV682 ) )
          | ~ ~ ( ~ ! [SY1063: $i] :
                      ( ~ ( in @ SY1063 @ SV682 )
                      | ( in @ SY1063 @ SV497 ) )
                | ~ ! [SY1064: $i] :
                      ( ~ ( in @ SY1064 @ SV682 )
                      | ~ ( in @ SY1064 @ SV663 ) ) ) )
        = $false )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3365]) ).

thf(3451,plain,
    ! [SV498: $i,SV712: $i] :
      ( ( ( ~ ( ! [SY1093: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ SY1093 ) @ SV498 )
              | ~ ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ ( sK41_SY326 @ SV712 @ SV498 ) ) @ SV498 )
              | ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) ) )
        = $false )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3366]) ).

thf(3452,plain,
    ! [SV498: $i,SV713: $i] :
      ( ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1094: $i] :
                    ( ! [SY909: $i] :
                        ~ ( in @ ( ordered_pair @ SY1094 @ SY909 ) @ SV498 )
                    | ( in @ SY1094 @ SV713 ) )
              | ~ ! [SY1096: $i] :
                    ( ~ ( in @ SY1096 @ SV713 )
                    | ( in @ ( ordered_pair @ SY1096 @ ( sK39_D @ SY1096 @ SV713 @ SV498 ) ) @ SV498 ) ) ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3367]) ).

thf(3453,plain,
    ! [SV664: $i,SV613: $i,SV476: $i] :
      ( ( ( in @ ( ordered_pair @ SV476 @ SV613 ) @ SV664 )
        = $false )
      | ( ( in @ SV476 @ ( relation_field @ SV664 ) )
        = $true )
      | ( ( relation @ SV664 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3368]) ).

thf(3454,plain,
    ! [SV665: $i,SV614: $i,SV476: $i] :
      ( ( ( in @ ( ordered_pair @ SV476 @ SV614 ) @ SV665 )
        = $false )
      | ( ( in @ SV614 @ ( relation_field @ SV665 ) )
        = $true )
      | ( ( relation @ SV665 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3369]) ).

thf(3455,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( relation @ SV739 )
          | ~ ( ~ ( ! [SY1109: $i] :
                      ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SY1109 ) @ SV477 )
                      | ~ ( in @ ( ordered_pair @ SY1109 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
                  | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
                      | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
                  | ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) ) )
          | ( SV739
            = ( relation_composition @ SV477 @ SV564 ) ) )
        = $true )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3370]) ).

thf(3456,plain,
    ! [SV564: $i,SV477: $i,SV740: $i] :
      ( ( ( ~ ( relation @ SV740 )
          | ( SV740
           != ( relation_composition @ SV477 @ SV564 ) )
          | ~ ( ~ ! [SY1110: $i,SY1111: $i] :
                    ( ! [SY947: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY1110 @ SY947 ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ SY947 @ SY1111 ) @ SV564 ) )
                    | ( in @ ( ordered_pair @ SY1110 @ SY1111 ) @ SV740 ) )
              | ~ ! [SY1113: $i,SY1114: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1113 @ SY1114 ) @ SV740 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY1113 @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) @ SY1114 ) @ SV564 ) ) ) ) )
        = $true )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3371]) ).

thf(3457,plain,
    ! [SV478: $i,SV714: $i] :
      ( ( ( ~ ! [SY1097: $i] :
                ( ~ ( subset @ SY1097 @ SV714 )
                | ( in @ SY1097 @ ( sK3_SY300 @ SV714 @ SV478 ) ) )
          | ~ ( in @ ( sK3_SY300 @ SV714 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
        = $false )
      | ( ( ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3372]) ).

thf(3458,plain,
    ! [SV478: $i] :
      ( ( ! [SY812: $i,SY813: $i] :
            ( ~ ( in @ SY812 @ ( sK2_B @ SV478 ) )
            | ~ ( subset @ SY813 @ SY812 )
            | ( in @ SY813 @ ( sK2_B @ SV478 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3373]) ).

thf(3459,plain,
    ! [SV478: $i] :
      ( ( in @ SV478 @ ( sK2_B @ SV478 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3374]) ).

thf(3460,plain,
    ! [SV741: $i,SV683: $i] :
      ( ( ( subset @ SV683 @ ( singleton @ SV741 ) )
        = $true )
      | ( ( SV683 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3375]) ).

thf(3461,plain,
    ! [SV717: $i,SV684: $i] :
      ( ( ( SV684
          = ( singleton @ SV717 ) )
        = $false )
      | ( ( subset @ SV684 @ ( singleton @ SV717 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3376]) ).

thf(3462,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
                  | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
                  | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) ) ) )
        = $true )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3379]) ).

thf(3463,plain,
    ! [SV481: $i,SV687: $i] :
      ( ( ( ( SV687
           != ( relation_inverse @ SV481 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1067: $i,SY1068: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1067 @ SY1068 ) @ SV687 )
                    | ( in @ ( ordered_pair @ SY1068 @ SY1067 ) @ SV481 ) )
              | ~ ! [SY1069: $i,SY1070: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1070 @ SY1069 ) @ SV481 )
                    | ( in @ ( ordered_pair @ SY1069 @ SY1070 ) @ SV687 ) ) ) )
        = $true )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3380]) ).

thf(3464,plain,
    ! [SV688: $i,SV544: $i,SV668: $i,SV482: $i] :
      ( ( ( in @ SV482 @ SV668 )
        = $false )
      | ( ( ~ ( in @ SV544 @ SV688 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV668 @ SV688 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3381]) ).

thf(3465,plain,
    ! [SV728: $i,SV544: $i,SV482: $i] :
      ( ( ( ! [SY1100: $i] :
              ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV728 @ SY1100 ) ) )
        = $true )
      | ( ( in @ SV482 @ SV728 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3382]) ).

thf(3466,plain,
    ! [SV742: $i,SV729: $i,SV544: $i,SV482: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV729 @ SV742 ) )
        | ( in @ SV544 @ SV742 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3383]) ).

thf(3467,plain,
    ! [SV719: $i,SV689: $i] :
      ( ( ( SV689 = SV719 )
        = $false )
      | ( ( subset @ SV689 @ SV719 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3385]) ).

thf(3468,plain,
    ! [SV720: $i,SV690: $i] :
      ( ( ( SV690 = SV720 )
        = $false )
      | ( ( subset @ SV720 @ SV690 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3386]) ).

thf(3469,plain,
    ! [SV691: $i,SV484: $i] :
      ( ( ( ~ ( subset @ SV484 @ SV691 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SV691 ) )
        = $true )
      | ( ( relation @ SV691 )
        = $false )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3387]) ).

thf(3470,plain,
    ! [SV692: $i,SV484: $i] :
      ( ( ( ~ ( subset @ SV484 @ SV692 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SV692 ) )
        = $true )
      | ( ( relation @ SV692 )
        = $false )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3388]) ).

thf(3471,plain,
    ! [SV573: $i,SV626: $i] :
      ( ( ( in @ ( sK20_C @ SV626 @ SV573 ) @ SV626 )
        = $false )
      | ( ( subset @ SV573 @ SV626 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3390]) ).

thf(3472,plain,
    ! [SV627: $i,SV574: $i,SV721: $i] :
      ( ( ( in @ SV721 @ SV574 )
        = $false )
      | ( ( in @ SV721 @ SV627 )
        = $true )
      | ( ( subset @ SV574 @ SV627 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3391]) ).

thf(3473,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                  | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) )
              | ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
                  | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3392]) ).

thf(3474,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
          | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 )
          | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3393]) ).

thf(3475,plain,
    ! [SV629: $i,SV485: $i,SV670: $i] :
      ( ( ( ~ ! [SY1046: $i] :
                ( ~ ( in @ SY1046 @ SV670 )
                | ( in @ SY1046 @ SV485 )
                | ( in @ SY1046 @ SV629 ) ) )
        = $false )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3394]) ).

thf(3476,plain,
    ! [SV629: $i,SV670: $i,SV485: $i] :
      ( ( ( ~ ~ ( ~ ! [SY1047: $i] :
                      ( ~ ( in @ SY1047 @ SV485 )
                      | ( in @ SY1047 @ SV670 ) )
                | ~ ! [SY1048: $i] :
                      ( ~ ( in @ SY1048 @ SV629 )
                      | ( in @ SY1048 @ SV670 ) ) ) )
        = $false )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3394]) ).

thf(3477,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 )
                      | ~ ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) ) )
                  | ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
              | ~ ( ! [SY1102: $i] :
                      ( ~ ( in @ SY1102 @ SV693 )
                      | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SY1102 ) )
                  | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) ) ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3395]) ).

thf(3478,plain,
    ! [SV694: $i,SV731: $i] :
      ( ( ( ( SV731
           != ( set_meet @ SV694 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1103: $i] :
                    ( ~ ( ~ ( in @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) @ SV694 )
                        | ~ ~ ( in @ SY1103 @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) ) )
                    | ( in @ SY1103 @ SV731 ) )
              | ~ ! [SY1104: $i] :
                    ( ~ ( in @ SY1104 @ SV731 )
                    | ! [SY1078: $i] :
                        ( ~ ( in @ SY1078 @ SV694 )
                        | ( in @ SY1104 @ SY1078 ) ) ) ) )
        = $true )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3396]) ).

thf(3479,plain,
    ! [SV695: $i,SV743: $i] :
      ( ( ( ( SV743
           != ( set_meet @ SV695 ) )
          | ( SV743 = empty_set ) )
        = $true )
      | ( ( SV695 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3397]) ).

thf(3480,plain,
    ! [SV696: $i,SV744: $i] :
      ( ( ( ( SV744 != empty_set )
          | ( SV744
            = ( set_meet @ SV696 ) ) )
        = $true )
      | ( ( SV696 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3398]) ).

thf(3481,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ! [SY1007: $i] :
              ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SY1007 )
              | ~ ( in @ SY1007 @ SV577 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3399]) ).

thf(3482,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ ( sK18_SY312 @ SV632 @ SV577 ) )
              | ~ ( in @ ( sK18_SY312 @ SV632 @ SV577 ) @ SV577 ) ) )
        = $true )
      | ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3400]) ).

thf(3483,plain,
    ! [SV633: $i,SV578: $i] :
      ( ( ( ! [SY1008: $i] :
              ( ! [SY967: $i] :
                  ( ~ ( in @ SY1008 @ SY967 )
                  | ~ ( in @ SY967 @ SV578 ) )
              | ( in @ SY1008 @ SV633 ) ) )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3401]) ).

thf(3484,plain,
    ! [SV578: $i,SV633: $i] :
      ( ( ( ! [SY1010: $i] :
              ( ~ ( in @ SY1010 @ SV633 )
              | ~ ( ~ ( in @ SY1010 @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) )
                  | ~ ( in @ ( sK16_D @ SY1010 @ SV633 @ SV578 ) @ SV578 ) ) ) )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3402]) ).

thf(3485,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
          | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
          | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3403]) ).

thf(3486,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
                  | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
              | ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
                  | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) ) ) )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3404]) ).

thf(3487,plain,
    ! [SV672: $i,SV635: $i,SV486: $i] :
      ( ( ( ~ ! [SY1049: $i] :
                ( ~ ( in @ SY1049 @ SV486 )
                | ~ ( in @ SY1049 @ SV635 )
                | ( in @ SY1049 @ SV672 ) ) )
        = $false )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3405]) ).

thf(3488,plain,
    ! [SV635: $i,SV486: $i,SV672: $i] :
      ( ( ( ~ ~ ( ~ ! [SY1050: $i] :
                      ( ~ ( in @ SY1050 @ SV672 )
                      | ( in @ SY1050 @ SV486 ) )
                | ~ ! [SY1051: $i] :
                      ( ~ ( in @ SY1051 @ SV672 )
                      | ( in @ SY1051 @ SV635 ) ) ) )
        = $false )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3405]) ).

thf(3489,plain,
    ! [SV487: $i,SV722: $i] :
      ( ( ( in @ SV722 @ ( sK32_B @ SV487 ) )
        = $false )
      | ( ( in @ ( powerset @ SV722 ) @ ( sK32_B @ SV487 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3406]) ).

thf(3490,plain,
    ! [SV487: $i] :
      ( ( ! [SY855: $i,SY856: $i] :
            ( ~ ( in @ SY855 @ ( sK32_B @ SV487 ) )
            | ~ ( subset @ SY856 @ SY855 )
            | ( in @ SY856 @ ( sK32_B @ SV487 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3407]) ).

thf(3491,plain,
    ! [SV487: $i] :
      ( ( in @ SV487 @ ( sK32_B @ SV487 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[3408]) ).

thf(3492,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( ~ ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3409]) ).

thf(3493,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
        = $true )
      | ( ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 )
        = $true )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3410]) ).

thf(3494,plain,
    ! [SV584: $i,SV638: $i] :
      ( ( ( ! [SY1016: $i] :
              ( ~ ( in @ SY1016 @ SV638 )
              | ( subset @ SY1016 @ SV584 ) ) )
        = $true )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3411]) ).

thf(3495,plain,
    ! [SV638: $i,SV584: $i] :
      ( ( ( ! [SY1017: $i] :
              ( ~ ( subset @ SY1017 @ SV584 )
              | ( in @ SY1017 @ SV638 ) ) )
        = $true )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3412]) ).

thf(3496,plain,
    ! [SV586: $i,SV640: $i,SV697: $i] :
      ( ( ( in @ SV697 @ SV640 )
        = $false )
      | ( ( in @ SV697 @ SV586 )
        = $false )
      | ( ( ~ ( disjoint @ SV586 @ SV640 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3415]) ).

thf(3497,plain,
    ! [SV488: $i,SV698: $i] :
      ( ( ( ~ ( ! [SY1081: $i] :
                  ~ ( in @ ( ordered_pair @ SY1081 @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
              | ~ ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) ) )
        = $false )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3416]) ).

thf(3498,plain,
    ! [SV488: $i,SV698: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV698 @ SV488 ) @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
              | ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) ) )
        = $false )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3416]) ).

thf(3499,plain,
    ! [SV699: $i,SV488: $i] :
      ( ( ( ~ ! [SY1082: $i] :
                ( ! [SY861: $i] :
                    ~ ( in @ ( ordered_pair @ SY861 @ SY1082 ) @ SV488 )
                | ( in @ SY1082 @ SV699 ) )
          | ~ ! [SY1084: $i] :
                ( ~ ( in @ SY1084 @ SV699 )
                | ( in @ ( ordered_pair @ ( sK36_D @ SY1084 @ SV699 @ SV488 ) @ SY1084 ) @ SV488 ) ) )
        = $false )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3417]) ).

thf(3500,plain,
    ! [SV700: $i,SV732: $i] :
      ( ( ( ~ ( element @ SV732 @ SV700 ) )
        = $true )
      | ( ( in @ SV732 @ SV700 )
        = $true )
      | ( ( empty @ SV700 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3418]) ).

thf(3501,plain,
    ! [SV701: $i,SV733: $i] :
      ( ( ( ~ ( in @ SV733 @ SV701 ) )
        = $true )
      | ( ( element @ SV733 @ SV701 )
        = $true )
      | ( ( empty @ SV701 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3419]) ).

thf(3502,plain,
    ! [SV702: $i,SV745: $i] :
      ( ( ( ~ ( element @ SV745 @ SV702 )
          | ( empty @ SV745 ) )
        = $true )
      | ( ( empty @ SV702 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3420]) ).

thf(3503,plain,
    ! [SV703: $i,SV746: $i] :
      ( ( ( ~ ( empty @ SV746 )
          | ( element @ SV746 @ SV703 ) )
        = $true )
      | ( ( empty @ SV703 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3421]) ).

thf(3504,plain,
    ! [SV747: $i,SV704: $i] :
      ( ( ( subset @ SV704 @ ( singleton @ SV747 ) )
        = $true )
      | ( ( SV704 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3422]) ).

thf(3505,plain,
    ! [SV723: $i,SV705: $i] :
      ( ( ( SV705
          = ( singleton @ SV723 ) )
        = $false )
      | ( ( subset @ SV705 @ ( singleton @ SV723 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3423]) ).

thf(3506,plain,
    ! [SV748: $i,SV734: $i,SV600: $i] :
      ( ( ( ( ( sK48_B @ SV600 )
           != ( ordered_pair @ SV734 @ SV748 ) ) )
        = $true )
      | ( ( relation @ SV600 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3425]) ).

thf(3507,plain,
    ! [SV491: $i,SV673: $i,SV648: $i] :
      ( ( ( in @ SV648 @ SV673 )
        = $false )
      | ( ( in @ SV491 @ SV673 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV491 @ SV648 ) @ SV673 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3427]) ).

thf(3508,plain,
    ! [SV735: $i,SV724: $i,SV491: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV491 @ SV724 ) @ SV735 ) )
        = $true )
      | ( ( in @ SV491 @ SV735 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3428]) ).

thf(3509,plain,
    ! [SV736: $i,SV725: $i,SV491: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV491 @ SV725 ) @ SV736 ) )
        = $true )
      | ( ( in @ SV725 @ SV736 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3429]) ).

thf(3510,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                  | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                   != SV492 ) )
              | ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
                  | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
                   != SV649 ) ) ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3430]) ).

thf(3511,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
          | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
            = SV492 )
          | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
            = SV649 ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3431]) ).

thf(3512,plain,
    ! [SV650: $i,SV492: $i,SV675: $i] :
      ( ( ( ~ ! [SY1052: $i] :
                ( ~ ( in @ SY1052 @ SV675 )
                | ( SY1052 = SV492 )
                | ( SY1052 = SV650 ) ) )
        = $false )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3432]) ).

thf(3513,plain,
    ! [SV650: $i,SV675: $i,SV492: $i] :
      ( ( ( ~ ~ ( ~ ! [SY1053: $i] :
                      ( ( SY1053 != SV492 )
                      | ( in @ SY1053 @ SV675 ) )
                | ~ ! [SY1054: $i] :
                      ( ( SY1054 != SV650 )
                      | ( in @ SY1054 @ SV675 ) ) ) )
        = $false )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3432]) ).

thf(3514,plain,
    ! [SV708: $i,SV547: $i,SV676: $i,SV493: $i] :
      ( ( ( in @ SV493 @ SV676 )
        = $false )
      | ( ( ~ ( in @ SV547 @ SV708 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV676 @ SV708 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3433]) ).

thf(3515,plain,
    ! [SV737: $i,SV547: $i,SV493: $i] :
      ( ( ( ! [SY1107: $i] :
              ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV737 @ SY1107 ) ) )
        = $true )
      | ( ( in @ SV493 @ SV737 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3434]) ).

thf(3516,plain,
    ! [SV749: $i,SV738: $i,SV547: $i,SV493: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV738 @ SV749 ) )
        | ( in @ SV547 @ SV749 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3435]) ).

thf(3517,plain,
    ! [SV677: $i,SV651: $i,SV494: $i] :
      ( ( ( in @ ( ordered_pair @ SV494 @ SV651 ) @ SV677 )
        = $false )
      | ( ( in @ SV494 @ ( relation_dom @ SV677 ) )
        = $true )
      | ( ( relation @ SV677 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3436]) ).

thf(3518,plain,
    ! [SV678: $i,SV652: $i,SV494: $i] :
      ( ( ( in @ ( ordered_pair @ SV494 @ SV652 ) @ SV678 )
        = $false )
      | ( ( in @ SV652 @ ( relation_rng @ SV678 ) )
        = $true )
      | ( ( relation @ SV678 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3437]) ).

thf(3519,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( ( ( sK29_C @ SV655 @ SV604 )
           != SV604 ) )
        = $true )
      | ( ( ~ ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) )
        = $true )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3439]) ).

thf(3520,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( ( sK29_C @ SV655 @ SV604 )
          = SV604 )
        = $true )
      | ( ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 )
        = $true )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3440]) ).

thf(3521,plain,
    ! [SV656: $i,SV605: $i] :
      ( ( ( ! [SY1028: $i] :
              ( ( SY1028 != SV605 )
              | ( in @ SY1028 @ SV656 ) ) )
        = $true )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3441]) ).

thf(3522,plain,
    ! [SV605: $i,SV656: $i] :
      ( ( ( ! [SY1029: $i] :
              ( ~ ( in @ SY1029 @ SV656 )
              | ( SY1029 = SV605 ) ) )
        = $true )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3442]) ).

thf(3523,plain,
    ! [SV726: $i,SV710: $i] :
      ( ( ( proper_subset @ SV710 @ SV726 )
        = $false )
      | ( ( ( SV710 != SV726 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3443]) ).

thf(3524,plain,
    ! [SV727: $i,SV711: $i] :
      ( ( ( proper_subset @ SV711 @ SV727 )
        = $false )
      | ( ( subset @ SV711 @ SV727 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3444]) ).

thf(3525,plain,
    ! [SV679: $i,SV658: $i,SV495: $i] :
      ( ( ( ! [SY1056: $i,SY1057: $i] :
              ( ~ ( in @ SY1056 @ SV495 )
              | ~ ( in @ SY1057 @ SV658 )
              | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
               != ( ordered_pair @ SY1056 @ SY1057 ) ) )
          | ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3445]) ).

thf(3526,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
                    | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) )
              | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
               != ( ordered_pair @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) ) ) )
          | ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3446]) ).

thf(3527,plain,
    ! [SV680: $i,SV659: $i,SV495: $i] :
      ( ( ( ~ ! [SY1058: $i] :
                ( ! [SY1035: $i,SY1036: $i] :
                    ( ~ ( in @ SY1035 @ SV495 )
                    | ~ ( in @ SY1036 @ SV659 )
                    | ( SY1058
                     != ( ordered_pair @ SY1035 @ SY1036 ) ) )
                | ( in @ SY1058 @ SV680 ) ) )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3447]) ).

thf(3528,plain,
    ! [SV495: $i,SV659: $i,SV680: $i] :
      ( ( ( ~ ! [SY1061: $i] :
                ( ~ ( in @ SY1061 @ SV680 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                          | ~ ( in @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
                    | ( SY1061
                     != ( ordered_pair @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) ) ) ) ) )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3447]) ).

thf(3529,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
          | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
          | ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3448]) ).

thf(3530,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
                  | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
              | ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
                  | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) ) ) )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3449]) ).

thf(3531,plain,
    ! [SV682: $i,SV663: $i,SV497: $i] :
      ( ( ( ~ ! [SY1062: $i] :
                ( ~ ( in @ SY1062 @ SV497 )
                | ( in @ SY1062 @ SV663 )
                | ( in @ SY1062 @ SV682 ) ) )
        = $false )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3450]) ).

thf(3532,plain,
    ! [SV663: $i,SV497: $i,SV682: $i] :
      ( ( ( ~ ~ ( ~ ! [SY1063: $i] :
                      ( ~ ( in @ SY1063 @ SV682 )
                      | ( in @ SY1063 @ SV497 ) )
                | ~ ! [SY1064: $i] :
                      ( ~ ( in @ SY1064 @ SV682 )
                      | ~ ( in @ SY1064 @ SV663 ) ) ) )
        = $false )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3450]) ).

thf(3533,plain,
    ! [SV498: $i,SV712: $i] :
      ( ( ( ~ ( ! [SY1093: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ SY1093 ) @ SV498 )
              | ~ ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) ) )
        = $false )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3451]) ).

thf(3534,plain,
    ! [SV498: $i,SV712: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ ( sK41_SY326 @ SV712 @ SV498 ) ) @ SV498 )
              | ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) ) )
        = $false )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3451]) ).

thf(3535,plain,
    ! [SV713: $i,SV498: $i] :
      ( ( ( ~ ! [SY1094: $i] :
                ( ! [SY909: $i] :
                    ~ ( in @ ( ordered_pair @ SY1094 @ SY909 ) @ SV498 )
                | ( in @ SY1094 @ SV713 ) )
          | ~ ! [SY1096: $i] :
                ( ~ ( in @ SY1096 @ SV713 )
                | ( in @ ( ordered_pair @ SY1096 @ ( sK39_D @ SY1096 @ SV713 @ SV498 ) ) @ SV498 ) ) )
        = $false )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3452]) ).

thf(3536,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( relation @ SV739 ) )
        = $true )
      | ( ( ~ ( ~ ( ! [SY1109: $i] :
                      ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SY1109 ) @ SV477 )
                      | ~ ( in @ ( ordered_pair @ SY1109 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
                  | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
                      | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
                  | ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) ) )
          | ( SV739
            = ( relation_composition @ SV477 @ SV564 ) ) )
        = $true )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3455]) ).

thf(3537,plain,
    ! [SV564: $i,SV477: $i,SV740: $i] :
      ( ( ( ~ ( relation @ SV740 ) )
        = $true )
      | ( ( ( SV740
           != ( relation_composition @ SV477 @ SV564 ) )
          | ~ ( ~ ! [SY1110: $i,SY1111: $i] :
                    ( ! [SY947: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY1110 @ SY947 ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ SY947 @ SY1111 ) @ SV564 ) )
                    | ( in @ ( ordered_pair @ SY1110 @ SY1111 ) @ SV740 ) )
              | ~ ! [SY1113: $i,SY1114: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1113 @ SY1114 ) @ SV740 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY1113 @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) @ SY1114 ) @ SV564 ) ) ) ) )
        = $true )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3456]) ).

thf(3538,plain,
    ! [SV478: $i,SV714: $i] :
      ( ( ( ~ ! [SY1097: $i] :
                ( ~ ( subset @ SY1097 @ SV714 )
                | ( in @ SY1097 @ ( sK3_SY300 @ SV714 @ SV478 ) ) ) )
        = $false )
      | ( ( ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3457]) ).

thf(3539,plain,
    ! [SV478: $i,SV714: $i] :
      ( ( ( ~ ( in @ ( sK3_SY300 @ SV714 @ SV478 ) @ ( sK2_B @ SV478 ) ) )
        = $false )
      | ( ( ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3457]) ).

thf(3540,plain,
    ! [SV478: $i,SV750: $i] :
      ( ( ! [SY1115: $i] :
            ( ~ ( in @ SV750 @ ( sK2_B @ SV478 ) )
            | ~ ( subset @ SY1115 @ SV750 )
            | ( in @ SY1115 @ ( sK2_B @ SV478 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3458]) ).

thf(3541,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
              | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
              | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) ) )
        = $false )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3462]) ).

thf(3542,plain,
    ! [SV481: $i,SV687: $i] :
      ( ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1067: $i,SY1068: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1067 @ SY1068 ) @ SV687 )
                    | ( in @ ( ordered_pair @ SY1068 @ SY1067 ) @ SV481 ) )
              | ~ ! [SY1069: $i,SY1070: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1070 @ SY1069 ) @ SV481 )
                    | ( in @ ( ordered_pair @ SY1069 @ SY1070 ) @ SV687 ) ) ) )
        = $true )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3463]) ).

thf(3543,plain,
    ! [SV668: $i,SV482: $i,SV688: $i,SV544: $i] :
      ( ( ( in @ SV544 @ SV688 )
        = $false )
      | ( ( in @ SV482 @ SV668 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV668 @ SV688 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3464]) ).

thf(3544,plain,
    ! [SV751: $i,SV728: $i,SV544: $i,SV482: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV728 @ SV751 ) ) )
        = $true )
      | ( ( in @ SV482 @ SV728 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3465]) ).

thf(3545,plain,
    ! [SV742: $i,SV729: $i,SV544: $i,SV482: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV729 @ SV742 ) ) )
        = $true )
      | ( ( in @ SV544 @ SV742 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3466]) ).

thf(3546,plain,
    ! [SV691: $i,SV484: $i] :
      ( ( ( subset @ SV484 @ SV691 )
        = $false )
      | ( ( subset @ ( relation_dom @ SV484 ) @ ( relation_dom @ SV691 ) )
        = $true )
      | ( ( relation @ SV691 )
        = $false )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3469]) ).

thf(3547,plain,
    ! [SV692: $i,SV484: $i] :
      ( ( ( subset @ SV484 @ SV692 )
        = $false )
      | ( ( subset @ ( relation_rng @ SV484 ) @ ( relation_rng @ SV692 ) )
        = $true )
      | ( ( relation @ SV692 )
        = $false )
      | ( ( relation @ SV484 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3470]) ).

thf(3548,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
              | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) )
          | ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
              | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) )
        = $false )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3473]) ).

thf(3549,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
        = $true )
      | ( ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 )
          | ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3474]) ).

thf(3550,plain,
    ! [SV629: $i,SV485: $i,SV670: $i] :
      ( ( ( ! [SY1046: $i] :
              ( ~ ( in @ SY1046 @ SV670 )
              | ( in @ SY1046 @ SV485 )
              | ( in @ SY1046 @ SV629 ) ) )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3475]) ).

thf(3551,plain,
    ! [SV629: $i,SV670: $i,SV485: $i] :
      ( ( ( ~ ( ~ ! [SY1047: $i] :
                    ( ~ ( in @ SY1047 @ SV485 )
                    | ( in @ SY1047 @ SV670 ) )
              | ~ ! [SY1048: $i] :
                    ( ~ ( in @ SY1048 @ SV629 )
                    | ( in @ SY1048 @ SV670 ) ) ) )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3476]) ).

thf(3552,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 )
                  | ~ ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) ) )
              | ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
          | ~ ( ! [SY1102: $i] :
                  ( ~ ( in @ SY1102 @ SV693 )
                  | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SY1102 ) )
              | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) ) )
        = $false )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3477]) ).

thf(3553,plain,
    ! [SV694: $i,SV731: $i] :
      ( ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1103: $i] :
                    ( ~ ( ~ ( in @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) @ SV694 )
                        | ~ ~ ( in @ SY1103 @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) ) )
                    | ( in @ SY1103 @ SV731 ) )
              | ~ ! [SY1104: $i] :
                    ( ~ ( in @ SY1104 @ SV731 )
                    | ! [SY1078: $i] :
                        ( ~ ( in @ SY1078 @ SV694 )
                        | ( in @ SY1104 @ SY1078 ) ) ) ) )
        = $true )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3478]) ).

thf(3554,plain,
    ! [SV695: $i,SV743: $i] :
      ( ( ( ( SV743
           != ( set_meet @ SV695 ) ) )
        = $true )
      | ( ( SV743 = empty_set )
        = $true )
      | ( ( SV695 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3479]) ).

thf(3555,plain,
    ! [SV696: $i,SV744: $i] :
      ( ( ( ( SV744 != empty_set ) )
        = $true )
      | ( ( SV744
          = ( set_meet @ SV696 ) )
        = $true )
      | ( ( SV696 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3480]) ).

thf(3556,plain,
    ! [SV752: $i,SV577: $i,SV632: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV752 )
          | ~ ( in @ SV752 @ SV577 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3481]) ).

thf(3557,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ ( sK18_SY312 @ SV632 @ SV577 ) )
          | ~ ( in @ ( sK18_SY312 @ SV632 @ SV577 ) @ SV577 ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3482]) ).

thf(3558,plain,
    ! [SV633: $i,SV578: $i,SV753: $i] :
      ( ( ( ! [SY1116: $i] :
              ( ~ ( in @ SV753 @ SY1116 )
              | ~ ( in @ SY1116 @ SV578 ) )
          | ( in @ SV753 @ SV633 ) )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3483]) ).

thf(3559,plain,
    ! [SV578: $i,SV633: $i,SV754: $i] :
      ( ( ( ~ ( in @ SV754 @ SV633 )
          | ~ ( ~ ( in @ SV754 @ ( sK16_D @ SV754 @ SV633 @ SV578 ) )
              | ~ ( in @ ( sK16_D @ SV754 @ SV633 @ SV578 ) @ SV578 ) ) )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3484]) ).

thf(3560,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
          | ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3485]) ).

thf(3561,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
              | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
          | ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
              | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) ) )
        = $false )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3486]) ).

thf(3562,plain,
    ! [SV672: $i,SV635: $i,SV486: $i] :
      ( ( ( ! [SY1049: $i] :
              ( ~ ( in @ SY1049 @ SV486 )
              | ~ ( in @ SY1049 @ SV635 )
              | ( in @ SY1049 @ SV672 ) ) )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3487]) ).

thf(3563,plain,
    ! [SV635: $i,SV486: $i,SV672: $i] :
      ( ( ( ~ ( ~ ! [SY1050: $i] :
                    ( ~ ( in @ SY1050 @ SV672 )
                    | ( in @ SY1050 @ SV486 ) )
              | ~ ! [SY1051: $i] :
                    ( ~ ( in @ SY1051 @ SV672 )
                    | ( in @ SY1051 @ SV635 ) ) ) )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3488]) ).

thf(3564,plain,
    ! [SV487: $i,SV755: $i] :
      ( ( ! [SY1117: $i] :
            ( ~ ( in @ SV755 @ ( sK32_B @ SV487 ) )
            | ~ ( subset @ SY1117 @ SV755 )
            | ( in @ SY1117 @ ( sK32_B @ SV487 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3490]) ).

thf(3565,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
        = $false )
      | ( ( ~ ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3492]) ).

thf(3566,plain,
    ! [SV584: $i,SV638: $i,SV756: $i] :
      ( ( ( ~ ( in @ SV756 @ SV638 )
          | ( subset @ SV756 @ SV584 ) )
        = $true )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3494]) ).

thf(3567,plain,
    ! [SV638: $i,SV584: $i,SV757: $i] :
      ( ( ( ~ ( subset @ SV757 @ SV584 )
          | ( in @ SV757 @ SV638 ) )
        = $true )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3495]) ).

thf(3568,plain,
    ! [SV697: $i,SV640: $i,SV586: $i] :
      ( ( ( disjoint @ SV586 @ SV640 )
        = $false )
      | ( ( in @ SV697 @ SV586 )
        = $false )
      | ( ( in @ SV697 @ SV640 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3496]) ).

thf(3569,plain,
    ! [SV488: $i,SV698: $i] :
      ( ( ( ! [SY1081: $i] :
              ~ ( in @ ( ordered_pair @ SY1081 @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
          | ~ ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) )
        = $true )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3497]) ).

thf(3570,plain,
    ! [SV488: $i,SV698: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV698 @ SV488 ) @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
          | ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) )
        = $true )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3498]) ).

thf(3571,plain,
    ! [SV699: $i,SV488: $i] :
      ( ( ( ~ ! [SY1082: $i] :
                ( ! [SY861: $i] :
                    ~ ( in @ ( ordered_pair @ SY861 @ SY1082 ) @ SV488 )
                | ( in @ SY1082 @ SV699 ) ) )
        = $false )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3499]) ).

thf(3572,plain,
    ! [SV488: $i,SV699: $i] :
      ( ( ( ~ ! [SY1084: $i] :
                ( ~ ( in @ SY1084 @ SV699 )
                | ( in @ ( ordered_pair @ ( sK36_D @ SY1084 @ SV699 @ SV488 ) @ SY1084 ) @ SV488 ) ) )
        = $false )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3499]) ).

thf(3573,plain,
    ! [SV700: $i,SV732: $i] :
      ( ( ( element @ SV732 @ SV700 )
        = $false )
      | ( ( in @ SV732 @ SV700 )
        = $true )
      | ( ( empty @ SV700 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3500]) ).

thf(3574,plain,
    ! [SV701: $i,SV733: $i] :
      ( ( ( in @ SV733 @ SV701 )
        = $false )
      | ( ( element @ SV733 @ SV701 )
        = $true )
      | ( ( empty @ SV701 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3501]) ).

thf(3575,plain,
    ! [SV702: $i,SV745: $i] :
      ( ( ( ~ ( element @ SV745 @ SV702 ) )
        = $true )
      | ( ( empty @ SV745 )
        = $true )
      | ( ( empty @ SV702 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3502]) ).

thf(3576,plain,
    ! [SV703: $i,SV746: $i] :
      ( ( ( ~ ( empty @ SV746 ) )
        = $true )
      | ( ( element @ SV746 @ SV703 )
        = $true )
      | ( ( empty @ SV703 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3503]) ).

thf(3577,plain,
    ! [SV748: $i,SV734: $i,SV600: $i] :
      ( ( ( ( sK48_B @ SV600 )
          = ( ordered_pair @ SV734 @ SV748 ) )
        = $false )
      | ( ( relation @ SV600 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3506]) ).

thf(3578,plain,
    ! [SV735: $i,SV724: $i,SV491: $i] :
      ( ( ( subset @ ( unordered_pair @ SV491 @ SV724 ) @ SV735 )
        = $false )
      | ( ( in @ SV491 @ SV735 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3508]) ).

thf(3579,plain,
    ! [SV736: $i,SV725: $i,SV491: $i] :
      ( ( ( subset @ ( unordered_pair @ SV491 @ SV725 ) @ SV736 )
        = $false )
      | ( ( in @ SV725 @ SV736 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3509]) ).

thf(3580,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
              | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
               != SV492 ) )
          | ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
              | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
               != SV649 ) ) )
        = $false )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3510]) ).

thf(3581,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
        = $true )
      | ( ( ( ( sK27_D @ SV674 @ SV649 @ SV492 )
            = SV492 )
          | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
            = SV649 ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3511]) ).

thf(3582,plain,
    ! [SV650: $i,SV492: $i,SV675: $i] :
      ( ( ( ! [SY1052: $i] :
              ( ~ ( in @ SY1052 @ SV675 )
              | ( SY1052 = SV492 )
              | ( SY1052 = SV650 ) ) )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3512]) ).

thf(3583,plain,
    ! [SV650: $i,SV675: $i,SV492: $i] :
      ( ( ( ~ ( ~ ! [SY1053: $i] :
                    ( ( SY1053 != SV492 )
                    | ( in @ SY1053 @ SV675 ) )
              | ~ ! [SY1054: $i] :
                    ( ( SY1054 != SV650 )
                    | ( in @ SY1054 @ SV675 ) ) ) )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3513]) ).

thf(3584,plain,
    ! [SV676: $i,SV493: $i,SV708: $i,SV547: $i] :
      ( ( ( in @ SV547 @ SV708 )
        = $false )
      | ( ( in @ SV493 @ SV676 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV676 @ SV708 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3514]) ).

thf(3585,plain,
    ! [SV758: $i,SV737: $i,SV547: $i,SV493: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV737 @ SV758 ) ) )
        = $true )
      | ( ( in @ SV493 @ SV737 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3515]) ).

thf(3586,plain,
    ! [SV749: $i,SV738: $i,SV547: $i,SV493: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV738 @ SV749 ) ) )
        = $true )
      | ( ( in @ SV547 @ SV749 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3516]) ).

thf(3587,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( ( sK29_C @ SV655 @ SV604 )
          = SV604 )
        = $false )
      | ( ( ~ ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 ) )
        = $true )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3519]) ).

thf(3588,plain,
    ! [SV656: $i,SV605: $i,SV759: $i] :
      ( ( ( ( SV759 != SV605 )
          | ( in @ SV759 @ SV656 ) )
        = $true )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3521]) ).

thf(3589,plain,
    ! [SV605: $i,SV656: $i,SV760: $i] :
      ( ( ( ~ ( in @ SV760 @ SV656 )
          | ( SV760 = SV605 ) )
        = $true )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3522]) ).

thf(3590,plain,
    ! [SV726: $i,SV710: $i] :
      ( ( ( SV710 = SV726 )
        = $false )
      | ( ( proper_subset @ SV710 @ SV726 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3523]) ).

thf(3591,plain,
    ! [SV679: $i,SV658: $i,SV495: $i] :
      ( ( ( ! [SY1056: $i,SY1057: $i] :
              ( ~ ( in @ SY1056 @ SV495 )
              | ~ ( in @ SY1057 @ SV658 )
              | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
               != ( ordered_pair @ SY1056 @ SY1057 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3525]) ).

thf(3592,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
                    | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) )
              | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
               != ( ordered_pair @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3526]) ).

thf(3593,plain,
    ! [SV680: $i,SV659: $i,SV495: $i] :
      ( ( ( ! [SY1058: $i] :
              ( ! [SY1035: $i,SY1036: $i] :
                  ( ~ ( in @ SY1035 @ SV495 )
                  | ~ ( in @ SY1036 @ SV659 )
                  | ( SY1058
                   != ( ordered_pair @ SY1035 @ SY1036 ) ) )
              | ( in @ SY1058 @ SV680 ) ) )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3527]) ).

thf(3594,plain,
    ! [SV495: $i,SV659: $i,SV680: $i] :
      ( ( ( ! [SY1061: $i] :
              ( ~ ( in @ SY1061 @ SV680 )
              | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                        | ~ ( in @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
                  | ( SY1061
                   != ( ordered_pair @ ( sK21_E @ SY1061 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SY1061 @ SV680 @ SV659 @ SV495 ) ) ) ) ) )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3528]) ).

thf(3595,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
          | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 ) )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3529]) ).

thf(3596,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
              | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
          | ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
              | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) ) )
        = $false )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3530]) ).

thf(3597,plain,
    ! [SV682: $i,SV663: $i,SV497: $i] :
      ( ( ( ! [SY1062: $i] :
              ( ~ ( in @ SY1062 @ SV497 )
              | ( in @ SY1062 @ SV663 )
              | ( in @ SY1062 @ SV682 ) ) )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3531]) ).

thf(3598,plain,
    ! [SV663: $i,SV497: $i,SV682: $i] :
      ( ( ( ~ ( ~ ! [SY1063: $i] :
                    ( ~ ( in @ SY1063 @ SV682 )
                    | ( in @ SY1063 @ SV497 ) )
              | ~ ! [SY1064: $i] :
                    ( ~ ( in @ SY1064 @ SV682 )
                    | ~ ( in @ SY1064 @ SV663 ) ) ) )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3532]) ).

thf(3599,plain,
    ! [SV498: $i,SV712: $i] :
      ( ( ( ! [SY1093: $i] :
              ~ ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ SY1093 ) @ SV498 )
          | ~ ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) )
        = $true )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3533]) ).

thf(3600,plain,
    ! [SV498: $i,SV712: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ ( sK41_SY326 @ SV712 @ SV498 ) ) @ SV498 )
          | ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) )
        = $true )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3534]) ).

thf(3601,plain,
    ! [SV713: $i,SV498: $i] :
      ( ( ( ~ ! [SY1094: $i] :
                ( ! [SY909: $i] :
                    ~ ( in @ ( ordered_pair @ SY1094 @ SY909 ) @ SV498 )
                | ( in @ SY1094 @ SV713 ) ) )
        = $false )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3535]) ).

thf(3602,plain,
    ! [SV498: $i,SV713: $i] :
      ( ( ( ~ ! [SY1096: $i] :
                ( ~ ( in @ SY1096 @ SV713 )
                | ( in @ ( ordered_pair @ SY1096 @ ( sK39_D @ SY1096 @ SV713 @ SV498 ) ) @ SV498 ) ) )
        = $false )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3535]) ).

thf(3603,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( relation @ SV739 )
        = $false )
      | ( ( ~ ( ~ ( ! [SY1109: $i] :
                      ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SY1109 ) @ SV477 )
                      | ~ ( in @ ( ordered_pair @ SY1109 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
                  | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
                      | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
                  | ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) ) )
          | ( SV739
            = ( relation_composition @ SV477 @ SV564 ) ) )
        = $true )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3536]) ).

thf(3604,plain,
    ! [SV564: $i,SV477: $i,SV740: $i] :
      ( ( ( relation @ SV740 )
        = $false )
      | ( ( ( SV740
           != ( relation_composition @ SV477 @ SV564 ) )
          | ~ ( ~ ! [SY1110: $i,SY1111: $i] :
                    ( ! [SY947: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY1110 @ SY947 ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ SY947 @ SY1111 ) @ SV564 ) )
                    | ( in @ ( ordered_pair @ SY1110 @ SY1111 ) @ SV740 ) )
              | ~ ! [SY1113: $i,SY1114: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1113 @ SY1114 ) @ SV740 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY1113 @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) @ SY1114 ) @ SV564 ) ) ) ) )
        = $true )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3537]) ).

thf(3605,plain,
    ! [SV478: $i,SV714: $i] :
      ( ( ( ! [SY1097: $i] :
              ( ~ ( subset @ SY1097 @ SV714 )
              | ( in @ SY1097 @ ( sK3_SY300 @ SV714 @ SV478 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3538]) ).

thf(3606,plain,
    ! [SV478: $i,SV714: $i] :
      ( ( ( in @ ( sK3_SY300 @ SV714 @ SV478 ) @ ( sK2_B @ SV478 ) )
        = $true )
      | ( ( ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3539]) ).

thf(3607,plain,
    ! [SV761: $i,SV478: $i,SV750: $i] :
      ( ( ~ ( in @ SV750 @ ( sK2_B @ SV478 ) )
        | ~ ( subset @ SV761 @ SV750 )
        | ( in @ SV761 @ ( sK2_B @ SV478 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3540]) ).

thf(3608,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
              | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) ) )
        = $false )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3541]) ).

thf(3609,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
              | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) ) )
        = $false )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3541]) ).

thf(3610,plain,
    ! [SV481: $i,SV687: $i] :
      ( ( ( ~ ! [SY1067: $i,SY1068: $i] :
                ( ~ ( in @ ( ordered_pair @ SY1067 @ SY1068 ) @ SV687 )
                | ( in @ ( ordered_pair @ SY1068 @ SY1067 ) @ SV481 ) )
          | ~ ! [SY1069: $i,SY1070: $i] :
                ( ~ ( in @ ( ordered_pair @ SY1070 @ SY1069 ) @ SV481 )
                | ( in @ ( ordered_pair @ SY1069 @ SY1070 ) @ SV687 ) ) )
        = $false )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3542]) ).

thf(3611,plain,
    ! [SV751: $i,SV728: $i,SV544: $i,SV482: $i] :
      ( ( ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV728 @ SV751 ) )
        = $false )
      | ( ( in @ SV482 @ SV728 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3544]) ).

thf(3612,plain,
    ! [SV742: $i,SV729: $i,SV544: $i,SV482: $i] :
      ( ( ( in @ ( ordered_pair @ SV482 @ SV544 ) @ ( cartesian_product2 @ SV729 @ SV742 ) )
        = $false )
      | ( ( in @ SV544 @ SV742 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3545]) ).

thf(3613,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
              | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) ) )
        = $false )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3548]) ).

thf(3614,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
              | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) ) )
        = $false )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3548]) ).

thf(3615,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 )
        = $true )
      | ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 )
        = $true )
      | ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3549]) ).

thf(3616,plain,
    ! [SV629: $i,SV485: $i,SV670: $i,SV762: $i] :
      ( ( ( ~ ( in @ SV762 @ SV670 )
          | ( in @ SV762 @ SV485 )
          | ( in @ SV762 @ SV629 ) )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3550]) ).

thf(3617,plain,
    ! [SV629: $i,SV670: $i,SV485: $i] :
      ( ( ( ~ ! [SY1047: $i] :
                ( ~ ( in @ SY1047 @ SV485 )
                | ( in @ SY1047 @ SV670 ) )
          | ~ ! [SY1048: $i] :
                ( ~ ( in @ SY1048 @ SV629 )
                | ( in @ SY1048 @ SV670 ) ) )
        = $false )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3551]) ).

thf(3618,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 )
                  | ~ ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) ) )
              | ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) ) )
        = $false )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3552]) ).

thf(3619,plain,
    ! [SV730: $i,SV693: $i] :
      ( ( ( ~ ( ! [SY1102: $i] :
                  ( ~ ( in @ SY1102 @ SV693 )
                  | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SY1102 ) )
              | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) ) )
        = $false )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3552]) ).

thf(3620,plain,
    ! [SV694: $i,SV731: $i] :
      ( ( ( ~ ! [SY1103: $i] :
                ( ~ ( ~ ( in @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) @ SV694 )
                    | ~ ~ ( in @ SY1103 @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) ) )
                | ( in @ SY1103 @ SV731 ) )
          | ~ ! [SY1104: $i] :
                ( ~ ( in @ SY1104 @ SV731 )
                | ! [SY1078: $i] :
                    ( ~ ( in @ SY1078 @ SV694 )
                    | ( in @ SY1104 @ SY1078 ) ) ) )
        = $false )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3553]) ).

thf(3621,plain,
    ! [SV695: $i,SV743: $i] :
      ( ( ( SV743
          = ( set_meet @ SV695 ) )
        = $false )
      | ( ( SV743 = empty_set )
        = $true )
      | ( ( SV695 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3554]) ).

thf(3622,plain,
    ! [SV696: $i,SV744: $i] :
      ( ( ( SV744 = empty_set )
        = $false )
      | ( ( SV744
          = ( set_meet @ SV696 ) )
        = $true )
      | ( ( SV696 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3555]) ).

thf(3623,plain,
    ! [SV752: $i,SV577: $i,SV632: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV752 ) )
        = $true )
      | ( ( ~ ( in @ SV752 @ SV577 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3556]) ).

thf(3624,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ ( sK18_SY312 @ SV632 @ SV577 ) ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3557]) ).

thf(3625,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( ~ ( in @ ( sK18_SY312 @ SV632 @ SV577 ) @ SV577 ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3557]) ).

thf(3626,plain,
    ! [SV633: $i,SV578: $i,SV753: $i] :
      ( ( ( ! [SY1116: $i] :
              ( ~ ( in @ SV753 @ SY1116 )
              | ~ ( in @ SY1116 @ SV578 ) ) )
        = $true )
      | ( ( in @ SV753 @ SV633 )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3558]) ).

thf(3627,plain,
    ! [SV578: $i,SV633: $i,SV754: $i] :
      ( ( ( ~ ( in @ SV754 @ SV633 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV754 @ ( sK16_D @ SV754 @ SV633 @ SV578 ) )
              | ~ ( in @ ( sK16_D @ SV754 @ SV633 @ SV578 ) @ SV578 ) ) )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3559]) ).

thf(3628,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3560]) ).

thf(3629,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
              | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) ) )
        = $false )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3561]) ).

thf(3630,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
              | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) ) )
        = $false )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3561]) ).

thf(3631,plain,
    ! [SV672: $i,SV635: $i,SV486: $i,SV763: $i] :
      ( ( ( ~ ( in @ SV763 @ SV486 )
          | ~ ( in @ SV763 @ SV635 )
          | ( in @ SV763 @ SV672 ) )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3562]) ).

thf(3632,plain,
    ! [SV635: $i,SV486: $i,SV672: $i] :
      ( ( ( ~ ! [SY1050: $i] :
                ( ~ ( in @ SY1050 @ SV672 )
                | ( in @ SY1050 @ SV486 ) )
          | ~ ! [SY1051: $i] :
                ( ~ ( in @ SY1051 @ SV672 )
                | ( in @ SY1051 @ SV635 ) ) )
        = $false )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3563]) ).

thf(3633,plain,
    ! [SV764: $i,SV487: $i,SV755: $i] :
      ( ( ~ ( in @ SV755 @ ( sK32_B @ SV487 ) )
        | ~ ( subset @ SV764 @ SV755 )
        | ( in @ SV764 @ ( sK32_B @ SV487 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3564]) ).

thf(3634,plain,
    ! [SV583: $i,SV637: $i] :
      ( ( ( subset @ ( sK28_C @ SV637 @ SV583 ) @ SV583 )
        = $false )
      | ( ( in @ ( sK28_C @ SV637 @ SV583 ) @ SV637 )
        = $false )
      | ( ( SV637
          = ( powerset @ SV583 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3565]) ).

thf(3635,plain,
    ! [SV584: $i,SV638: $i,SV756: $i] :
      ( ( ( ~ ( in @ SV756 @ SV638 ) )
        = $true )
      | ( ( subset @ SV756 @ SV584 )
        = $true )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3566]) ).

thf(3636,plain,
    ! [SV638: $i,SV584: $i,SV757: $i] :
      ( ( ( ~ ( subset @ SV757 @ SV584 ) )
        = $true )
      | ( ( in @ SV757 @ SV638 )
        = $true )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3567]) ).

thf(3637,plain,
    ! [SV488: $i,SV698: $i] :
      ( ( ( ! [SY1081: $i] :
              ~ ( in @ ( ordered_pair @ SY1081 @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 ) )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) )
        = $true )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3569]) ).

thf(3638,plain,
    ! [SV488: $i,SV698: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK38_SY324 @ SV698 @ SV488 ) @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
        = $true )
      | ( ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 )
        = $true )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3570]) ).

thf(3639,plain,
    ! [SV699: $i,SV488: $i] :
      ( ( ( ! [SY1082: $i] :
              ( ! [SY861: $i] :
                  ~ ( in @ ( ordered_pair @ SY861 @ SY1082 ) @ SV488 )
              | ( in @ SY1082 @ SV699 ) ) )
        = $true )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3571]) ).

thf(3640,plain,
    ! [SV488: $i,SV699: $i] :
      ( ( ( ! [SY1084: $i] :
              ( ~ ( in @ SY1084 @ SV699 )
              | ( in @ ( ordered_pair @ ( sK36_D @ SY1084 @ SV699 @ SV488 ) @ SY1084 ) @ SV488 ) ) )
        = $true )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3572]) ).

thf(3641,plain,
    ! [SV702: $i,SV745: $i] :
      ( ( ( element @ SV745 @ SV702 )
        = $false )
      | ( ( empty @ SV745 )
        = $true )
      | ( ( empty @ SV702 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3575]) ).

thf(3642,plain,
    ! [SV703: $i,SV746: $i] :
      ( ( ( empty @ SV746 )
        = $false )
      | ( ( element @ SV746 @ SV703 )
        = $true )
      | ( ( empty @ SV703 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3576]) ).

thf(3643,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
              | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
               != SV492 ) ) )
        = $false )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3580]) ).

thf(3644,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
              | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
               != SV649 ) ) )
        = $false )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3580]) ).

thf(3645,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ( sK27_D @ SV674 @ SV649 @ SV492 )
          = SV492 )
        = $true )
      | ( ( ( sK27_D @ SV674 @ SV649 @ SV492 )
          = SV649 )
        = $true )
      | ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3581]) ).

thf(3646,plain,
    ! [SV650: $i,SV492: $i,SV675: $i,SV765: $i] :
      ( ( ( ~ ( in @ SV765 @ SV675 )
          | ( SV765 = SV492 )
          | ( SV765 = SV650 ) )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3582]) ).

thf(3647,plain,
    ! [SV650: $i,SV675: $i,SV492: $i] :
      ( ( ( ~ ! [SY1053: $i] :
                ( ( SY1053 != SV492 )
                | ( in @ SY1053 @ SV675 ) )
          | ~ ! [SY1054: $i] :
                ( ( SY1054 != SV650 )
                | ( in @ SY1054 @ SV675 ) ) )
        = $false )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3583]) ).

thf(3648,plain,
    ! [SV758: $i,SV737: $i,SV547: $i,SV493: $i] :
      ( ( ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV737 @ SV758 ) )
        = $false )
      | ( ( in @ SV493 @ SV737 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3585]) ).

thf(3649,plain,
    ! [SV749: $i,SV738: $i,SV547: $i,SV493: $i] :
      ( ( ( in @ ( ordered_pair @ SV493 @ SV547 ) @ ( cartesian_product2 @ SV738 @ SV749 ) )
        = $false )
      | ( ( in @ SV547 @ SV749 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3586]) ).

thf(3650,plain,
    ! [SV604: $i,SV655: $i] :
      ( ( ( in @ ( sK29_C @ SV655 @ SV604 ) @ SV655 )
        = $false )
      | ( ( ( sK29_C @ SV655 @ SV604 )
          = SV604 )
        = $false )
      | ( ( SV655
          = ( singleton @ SV604 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3587]) ).

thf(3651,plain,
    ! [SV656: $i,SV605: $i,SV759: $i] :
      ( ( ( ( SV759 != SV605 ) )
        = $true )
      | ( ( in @ SV759 @ SV656 )
        = $true )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3588]) ).

thf(3652,plain,
    ! [SV605: $i,SV656: $i,SV760: $i] :
      ( ( ( ~ ( in @ SV760 @ SV656 ) )
        = $true )
      | ( ( SV760 = SV605 )
        = $true )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3589]) ).

thf(3653,plain,
    ! [SV679: $i,SV658: $i,SV495: $i,SV766: $i] :
      ( ( ( ! [SY1118: $i] :
              ( ~ ( in @ SV766 @ SV495 )
              | ~ ( in @ SY1118 @ SV658 )
              | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
               != ( ordered_pair @ SV766 @ SY1118 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3591]) ).

thf(3654,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
                | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) )
          | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
           != ( ordered_pair @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3592]) ).

thf(3655,plain,
    ! [SV680: $i,SV767: $i,SV659: $i,SV495: $i] :
      ( ( ( ! [SY1119: $i,SY1120: $i] :
              ( ~ ( in @ SY1119 @ SV495 )
              | ~ ( in @ SY1120 @ SV659 )
              | ( SV767
               != ( ordered_pair @ SY1119 @ SY1120 ) ) )
          | ( in @ SV767 @ SV680 ) )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3593]) ).

thf(3656,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( ~ ( in @ SV768 @ SV680 )
          | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                    | ~ ( in @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
              | ( SV768
               != ( ordered_pair @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) ) ) ) )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3594]) ).

thf(3657,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 ) )
        = $true )
      | ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3595]) ).

thf(3658,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
              | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) ) )
        = $false )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3596]) ).

thf(3659,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
              | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) ) )
        = $false )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3596]) ).

thf(3660,plain,
    ! [SV682: $i,SV663: $i,SV497: $i,SV769: $i] :
      ( ( ( ~ ( in @ SV769 @ SV497 )
          | ( in @ SV769 @ SV663 )
          | ( in @ SV769 @ SV682 ) )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3597]) ).

thf(3661,plain,
    ! [SV663: $i,SV497: $i,SV682: $i] :
      ( ( ( ~ ! [SY1063: $i] :
                ( ~ ( in @ SY1063 @ SV682 )
                | ( in @ SY1063 @ SV497 ) )
          | ~ ! [SY1064: $i] :
                ( ~ ( in @ SY1064 @ SV682 )
                | ~ ( in @ SY1064 @ SV663 ) ) )
        = $false )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3598]) ).

thf(3662,plain,
    ! [SV498: $i,SV712: $i] :
      ( ( ( ! [SY1093: $i] :
              ~ ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ SY1093 ) @ SV498 ) )
        = $true )
      | ( ( ~ ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) )
        = $true )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3599]) ).

thf(3663,plain,
    ! [SV498: $i,SV712: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ ( sK41_SY326 @ SV712 @ SV498 ) ) @ SV498 )
        = $true )
      | ( ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 )
        = $true )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3600]) ).

thf(3664,plain,
    ! [SV713: $i,SV498: $i] :
      ( ( ( ! [SY1094: $i] :
              ( ! [SY909: $i] :
                  ~ ( in @ ( ordered_pair @ SY1094 @ SY909 ) @ SV498 )
              | ( in @ SY1094 @ SV713 ) ) )
        = $true )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3601]) ).

thf(3665,plain,
    ! [SV498: $i,SV713: $i] :
      ( ( ( ! [SY1096: $i] :
              ( ~ ( in @ SY1096 @ SV713 )
              | ( in @ ( ordered_pair @ SY1096 @ ( sK39_D @ SY1096 @ SV713 @ SV498 ) ) @ SV498 ) ) )
        = $true )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3602]) ).

thf(3666,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( ~ ( ! [SY1109: $i] :
                      ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SY1109 ) @ SV477 )
                      | ~ ( in @ ( ordered_pair @ SY1109 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
                  | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
                      | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
                  | ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) ) ) )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3603]) ).

thf(3667,plain,
    ! [SV564: $i,SV477: $i,SV740: $i] :
      ( ( ( ( SV740
           != ( relation_composition @ SV477 @ SV564 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1110: $i,SY1111: $i] :
                    ( ! [SY947: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY1110 @ SY947 ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ SY947 @ SY1111 ) @ SV564 ) )
                    | ( in @ ( ordered_pair @ SY1110 @ SY1111 ) @ SV740 ) )
              | ~ ! [SY1113: $i,SY1114: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1113 @ SY1114 ) @ SV740 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY1113 @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) @ SY1114 ) @ SV564 ) ) ) ) )
        = $true )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3604]) ).

thf(3668,plain,
    ! [SV478: $i,SV714: $i,SV770: $i] :
      ( ( ( ~ ( subset @ SV770 @ SV714 )
          | ( in @ SV770 @ ( sK3_SY300 @ SV714 @ SV478 ) ) )
        = $true )
      | ( ( ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3605]) ).

thf(3669,plain,
    ! [SV478: $i,SV714: $i] :
      ( ( ( in @ SV714 @ ( sK2_B @ SV478 ) )
        = $false )
      | ( ( in @ ( sK3_SY300 @ SV714 @ SV478 ) @ ( sK2_B @ SV478 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3606]) ).

thf(3670,plain,
    ! [SV761: $i,SV478: $i,SV750: $i] :
      ( ( ( ~ ( in @ SV750 @ ( sK2_B @ SV478 ) )
          | ~ ( subset @ SV761 @ SV750 ) )
        = $true )
      | ( ( in @ SV761 @ ( sK2_B @ SV478 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3607]) ).

thf(3671,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
          | ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) )
        = $true )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3608]) ).

thf(3672,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
          | ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) )
        = $true )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3609]) ).

thf(3673,plain,
    ! [SV481: $i,SV687: $i] :
      ( ( ( ~ ! [SY1067: $i,SY1068: $i] :
                ( ~ ( in @ ( ordered_pair @ SY1067 @ SY1068 ) @ SV687 )
                | ( in @ ( ordered_pair @ SY1068 @ SY1067 ) @ SV481 ) ) )
        = $false )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3610]) ).

thf(3674,plain,
    ! [SV687: $i,SV481: $i] :
      ( ( ( ~ ! [SY1069: $i,SY1070: $i] :
                ( ~ ( in @ ( ordered_pair @ SY1070 @ SY1069 ) @ SV481 )
                | ( in @ ( ordered_pair @ SY1069 @ SY1070 ) @ SV687 ) ) )
        = $false )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3610]) ).

thf(3675,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
          | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3613]) ).

thf(3676,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
          | ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3614]) ).

thf(3677,plain,
    ! [SV629: $i,SV485: $i,SV670: $i,SV762: $i] :
      ( ( ( ~ ( in @ SV762 @ SV670 ) )
        = $true )
      | ( ( ( in @ SV762 @ SV485 )
          | ( in @ SV762 @ SV629 ) )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3616]) ).

thf(3678,plain,
    ! [SV629: $i,SV670: $i,SV485: $i] :
      ( ( ( ~ ! [SY1047: $i] :
                ( ~ ( in @ SY1047 @ SV485 )
                | ( in @ SY1047 @ SV670 ) ) )
        = $false )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3617]) ).

thf(3679,plain,
    ! [SV485: $i,SV670: $i,SV629: $i] :
      ( ( ( ~ ! [SY1048: $i] :
                ( ~ ( in @ SY1048 @ SV629 )
                | ( in @ SY1048 @ SV670 ) ) )
        = $false )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3617]) ).

thf(3680,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 )
              | ~ ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) ) )
          | ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3618]) ).

thf(3681,plain,
    ! [SV730: $i,SV693: $i] :
      ( ( ( ! [SY1102: $i] :
              ( ~ ( in @ SY1102 @ SV693 )
              | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SY1102 ) )
          | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3619]) ).

thf(3682,plain,
    ! [SV694: $i,SV731: $i] :
      ( ( ( ~ ! [SY1103: $i] :
                ( ~ ( ~ ( in @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) @ SV694 )
                    | ~ ~ ( in @ SY1103 @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) ) )
                | ( in @ SY1103 @ SV731 ) ) )
        = $false )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3620]) ).

thf(3683,plain,
    ! [SV694: $i,SV731: $i] :
      ( ( ( ~ ! [SY1104: $i] :
                ( ~ ( in @ SY1104 @ SV731 )
                | ! [SY1078: $i] :
                    ( ~ ( in @ SY1078 @ SV694 )
                    | ( in @ SY1104 @ SY1078 ) ) ) )
        = $false )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3620]) ).

thf(3684,plain,
    ! [SV752: $i,SV577: $i,SV632: $i] :
      ( ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV752 )
        = $false )
      | ( ( ~ ( in @ SV752 @ SV577 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3623]) ).

thf(3685,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ ( sK18_SY312 @ SV632 @ SV577 ) )
        = $true )
      | ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3624]) ).

thf(3686,plain,
    ! [SV577: $i,SV632: $i] :
      ( ( ( in @ ( sK18_SY312 @ SV632 @ SV577 ) @ SV577 )
        = $true )
      | ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3625]) ).

thf(3687,plain,
    ! [SV633: $i,SV578: $i,SV771: $i,SV753: $i] :
      ( ( ( ~ ( in @ SV753 @ SV771 )
          | ~ ( in @ SV771 @ SV578 ) )
        = $true )
      | ( ( in @ SV753 @ SV633 )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3626]) ).

thf(3688,plain,
    ! [SV578: $i,SV633: $i,SV754: $i] :
      ( ( ( in @ SV754 @ SV633 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV754 @ ( sK16_D @ SV754 @ SV633 @ SV578 ) )
              | ~ ( in @ ( sK16_D @ SV754 @ SV633 @ SV578 ) @ SV578 ) ) )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3627]) ).

thf(3689,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3628]) ).

thf(3690,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
          | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3629]) ).

thf(3691,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
          | ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3630]) ).

thf(3692,plain,
    ! [SV672: $i,SV635: $i,SV486: $i,SV763: $i] :
      ( ( ( ~ ( in @ SV763 @ SV486 )
          | ~ ( in @ SV763 @ SV635 ) )
        = $true )
      | ( ( in @ SV763 @ SV672 )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3631]) ).

thf(3693,plain,
    ! [SV635: $i,SV486: $i,SV672: $i] :
      ( ( ( ~ ! [SY1050: $i] :
                ( ~ ( in @ SY1050 @ SV672 )
                | ( in @ SY1050 @ SV486 ) ) )
        = $false )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3632]) ).

thf(3694,plain,
    ! [SV486: $i,SV635: $i,SV672: $i] :
      ( ( ( ~ ! [SY1051: $i] :
                ( ~ ( in @ SY1051 @ SV672 )
                | ( in @ SY1051 @ SV635 ) ) )
        = $false )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3632]) ).

thf(3695,plain,
    ! [SV764: $i,SV487: $i,SV755: $i] :
      ( ( ( ~ ( in @ SV755 @ ( sK32_B @ SV487 ) )
          | ~ ( subset @ SV764 @ SV755 ) )
        = $true )
      | ( ( in @ SV764 @ ( sK32_B @ SV487 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3633]) ).

thf(3696,plain,
    ! [SV584: $i,SV638: $i,SV756: $i] :
      ( ( ( in @ SV756 @ SV638 )
        = $false )
      | ( ( subset @ SV756 @ SV584 )
        = $true )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3635]) ).

thf(3697,plain,
    ! [SV638: $i,SV584: $i,SV757: $i] :
      ( ( ( subset @ SV757 @ SV584 )
        = $false )
      | ( ( in @ SV757 @ SV638 )
        = $true )
      | ( ( SV638
          = ( powerset @ SV584 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3636]) ).

thf(3698,plain,
    ! [SV488: $i,SV698: $i,SV772: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV772 @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 ) )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) )
        = $true )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3637]) ).

thf(3699,plain,
    ! [SV699: $i,SV488: $i,SV773: $i] :
      ( ( ( ! [SY1121: $i] :
              ~ ( in @ ( ordered_pair @ SY1121 @ SV773 ) @ SV488 )
          | ( in @ SV773 @ SV699 ) )
        = $true )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3639]) ).

thf(3700,plain,
    ! [SV488: $i,SV699: $i,SV774: $i] :
      ( ( ( ~ ( in @ SV774 @ SV699 )
          | ( in @ ( ordered_pair @ ( sK36_D @ SV774 @ SV699 @ SV488 ) @ SV774 ) @ SV488 ) )
        = $true )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3640]) ).

thf(3701,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
          | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
           != SV492 ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3643]) ).

thf(3702,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
          | ( ( sK27_D @ SV674 @ SV649 @ SV492 )
           != SV649 ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3644]) ).

thf(3703,plain,
    ! [SV650: $i,SV492: $i,SV675: $i,SV765: $i] :
      ( ( ( ~ ( in @ SV765 @ SV675 ) )
        = $true )
      | ( ( ( SV765 = SV492 )
          | ( SV765 = SV650 ) )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3646]) ).

thf(3704,plain,
    ! [SV650: $i,SV675: $i,SV492: $i] :
      ( ( ( ~ ! [SY1053: $i] :
                ( ( SY1053 != SV492 )
                | ( in @ SY1053 @ SV675 ) ) )
        = $false )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3647]) ).

thf(3705,plain,
    ! [SV492: $i,SV675: $i,SV650: $i] :
      ( ( ( ~ ! [SY1054: $i] :
                ( ( SY1054 != SV650 )
                | ( in @ SY1054 @ SV675 ) ) )
        = $false )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3647]) ).

thf(3706,plain,
    ! [SV656: $i,SV605: $i,SV759: $i] :
      ( ( ( SV759 = SV605 )
        = $false )
      | ( ( in @ SV759 @ SV656 )
        = $true )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3651]) ).

thf(3707,plain,
    ! [SV605: $i,SV656: $i,SV760: $i] :
      ( ( ( in @ SV760 @ SV656 )
        = $false )
      | ( ( SV760 = SV605 )
        = $true )
      | ( ( SV656
          = ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3652]) ).

thf(3708,plain,
    ! [SV679: $i,SV658: $i,SV775: $i,SV495: $i,SV766: $i] :
      ( ( ( ~ ( in @ SV766 @ SV495 )
          | ~ ( in @ SV775 @ SV658 )
          | ( ( sK23_D @ SV679 @ SV658 @ SV495 )
           != ( ordered_pair @ SV766 @ SV775 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3653]) ).

thf(3709,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
                | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3654]) ).

thf(3710,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ( ( sK23_D @ SV679 @ SV658 @ SV495 )
           != ( ordered_pair @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3654]) ).

thf(3711,plain,
    ! [SV680: $i,SV767: $i,SV659: $i,SV495: $i] :
      ( ( ( ! [SY1119: $i,SY1120: $i] :
              ( ~ ( in @ SY1119 @ SV495 )
              | ~ ( in @ SY1120 @ SV659 )
              | ( SV767
               != ( ordered_pair @ SY1119 @ SY1120 ) ) ) )
        = $true )
      | ( ( in @ SV767 @ SV680 )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3655]) ).

thf(3712,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( ~ ( in @ SV768 @ SV680 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                    | ~ ( in @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
              | ( SV768
               != ( ordered_pair @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) ) ) ) )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3656]) ).

thf(3713,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
        = $false )
      | ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3657]) ).

thf(3714,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
          | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3658]) ).

thf(3715,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
          | ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 ) )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3659]) ).

thf(3716,plain,
    ! [SV682: $i,SV663: $i,SV497: $i,SV769: $i] :
      ( ( ( ~ ( in @ SV769 @ SV497 )
          | ( in @ SV769 @ SV663 ) )
        = $true )
      | ( ( in @ SV769 @ SV682 )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3660]) ).

thf(3717,plain,
    ! [SV663: $i,SV497: $i,SV682: $i] :
      ( ( ( ~ ! [SY1063: $i] :
                ( ~ ( in @ SY1063 @ SV682 )
                | ( in @ SY1063 @ SV497 ) ) )
        = $false )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3661]) ).

thf(3718,plain,
    ! [SV497: $i,SV663: $i,SV682: $i] :
      ( ( ( ~ ! [SY1064: $i] :
                ( ~ ( in @ SY1064 @ SV682 )
                | ~ ( in @ SY1064 @ SV663 ) ) )
        = $false )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3661]) ).

thf(3719,plain,
    ! [SV776: $i,SV498: $i,SV712: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ SV776 ) @ SV498 ) )
        = $true )
      | ( ( ~ ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) )
        = $true )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3662]) ).

thf(3720,plain,
    ! [SV713: $i,SV498: $i,SV777: $i] :
      ( ( ( ! [SY1122: $i] :
              ~ ( in @ ( ordered_pair @ SV777 @ SY1122 ) @ SV498 )
          | ( in @ SV777 @ SV713 ) )
        = $true )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3664]) ).

thf(3721,plain,
    ! [SV498: $i,SV713: $i,SV778: $i] :
      ( ( ( ~ ( in @ SV778 @ SV713 )
          | ( in @ ( ordered_pair @ SV778 @ ( sK39_D @ SV778 @ SV713 @ SV498 ) ) @ SV498 ) )
        = $true )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3665]) ).

thf(3722,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( ! [SY1109: $i] :
                  ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SY1109 ) @ SV477 )
                  | ~ ( in @ ( ordered_pair @ SY1109 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
              | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
          | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
                  | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
              | ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) ) )
        = $false )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3666]) ).

thf(3723,plain,
    ! [SV564: $i,SV477: $i,SV740: $i] :
      ( ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1110: $i,SY1111: $i] :
                    ( ! [SY947: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY1110 @ SY947 ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ SY947 @ SY1111 ) @ SV564 ) )
                    | ( in @ ( ordered_pair @ SY1110 @ SY1111 ) @ SV740 ) )
              | ~ ! [SY1113: $i,SY1114: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1113 @ SY1114 ) @ SV740 )
                    | ~ ( ~ ( in @ ( ordered_pair @ SY1113 @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
                        | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) @ SY1114 ) @ SV564 ) ) ) ) )
        = $true )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3667]) ).

thf(3724,plain,
    ! [SV478: $i,SV714: $i,SV770: $i] :
      ( ( ( ~ ( subset @ SV770 @ SV714 ) )
        = $true )
      | ( ( in @ SV770 @ ( sK3_SY300 @ SV714 @ SV478 ) )
        = $true )
      | ( ( ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3668]) ).

thf(3725,plain,
    ! [SV761: $i,SV478: $i,SV750: $i] :
      ( ( ( ~ ( in @ SV750 @ ( sK2_B @ SV478 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV761 @ SV750 ) )
        = $true )
      | ( ( in @ SV761 @ ( sK2_B @ SV478 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3670]) ).

thf(3726,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) )
        = $true )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3671]) ).

thf(3727,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 )
        = $true )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3672]) ).

thf(3728,plain,
    ! [SV481: $i,SV687: $i] :
      ( ( ( ! [SY1067: $i,SY1068: $i] :
              ( ~ ( in @ ( ordered_pair @ SY1067 @ SY1068 ) @ SV687 )
              | ( in @ ( ordered_pair @ SY1068 @ SY1067 ) @ SV481 ) ) )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3673]) ).

thf(3729,plain,
    ! [SV687: $i,SV481: $i] :
      ( ( ( ! [SY1069: $i,SY1070: $i] :
              ( ~ ( in @ ( ordered_pair @ SY1070 @ SY1069 ) @ SV481 )
              | ( in @ ( ordered_pair @ SY1069 @ SY1070 ) @ SV687 ) ) )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3674]) ).

thf(3730,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 ) )
        = $true )
      | ( ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3675]) ).

thf(3731,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 ) )
        = $true )
      | ( ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3676]) ).

thf(3732,plain,
    ! [SV629: $i,SV485: $i,SV670: $i,SV762: $i] :
      ( ( ( in @ SV762 @ SV670 )
        = $false )
      | ( ( ( in @ SV762 @ SV485 )
          | ( in @ SV762 @ SV629 ) )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3677]) ).

thf(3733,plain,
    ! [SV629: $i,SV670: $i,SV485: $i] :
      ( ( ( ! [SY1047: $i] :
              ( ~ ( in @ SY1047 @ SV485 )
              | ( in @ SY1047 @ SV670 ) ) )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3678]) ).

thf(3734,plain,
    ! [SV485: $i,SV670: $i,SV629: $i] :
      ( ( ( ! [SY1048: $i] :
              ( ~ ( in @ SY1048 @ SV629 )
              | ( in @ SY1048 @ SV670 ) ) )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3679]) ).

thf(3735,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 )
              | ~ ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3680]) ).

thf(3736,plain,
    ! [SV730: $i,SV693: $i] :
      ( ( ( ! [SY1102: $i] :
              ( ~ ( in @ SY1102 @ SV693 )
              | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SY1102 ) ) )
        = $true )
      | ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3681]) ).

thf(3737,plain,
    ! [SV694: $i,SV731: $i] :
      ( ( ( ! [SY1103: $i] :
              ( ~ ( ~ ( in @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) @ SV694 )
                  | ~ ~ ( in @ SY1103 @ ( sK43_D @ SY1103 @ SV731 @ SV694 ) ) )
              | ( in @ SY1103 @ SV731 ) ) )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3682]) ).

thf(3738,plain,
    ! [SV694: $i,SV731: $i] :
      ( ( ( ! [SY1104: $i] :
              ( ~ ( in @ SY1104 @ SV731 )
              | ! [SY1078: $i] :
                  ( ~ ( in @ SY1078 @ SV694 )
                  | ( in @ SY1104 @ SY1078 ) ) ) )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3683]) ).

thf(3739,plain,
    ! [SV632: $i,SV577: $i,SV752: $i] :
      ( ( ( in @ SV752 @ SV577 )
        = $false )
      | ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV752 )
        = $false )
      | ( ( ~ ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 ) )
        = $true )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3684]) ).

thf(3740,plain,
    ! [SV633: $i,SV578: $i,SV771: $i,SV753: $i] :
      ( ( ( ~ ( in @ SV753 @ SV771 ) )
        = $true )
      | ( ( ~ ( in @ SV771 @ SV578 ) )
        = $true )
      | ( ( in @ SV753 @ SV633 )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3687]) ).

thf(3741,plain,
    ! [SV578: $i,SV633: $i,SV754: $i] :
      ( ( ( ~ ( in @ SV754 @ ( sK16_D @ SV754 @ SV633 @ SV578 ) )
          | ~ ( in @ ( sK16_D @ SV754 @ SV633 @ SV578 ) @ SV578 ) )
        = $false )
      | ( ( in @ SV754 @ SV633 )
        = $false )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3688]) ).

thf(3742,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
        = $false )
      | ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 ) )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3689]) ).

thf(3743,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
        = $true )
      | ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3690]) ).

thf(3744,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
        = $true )
      | ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 )
        = $true )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3691]) ).

thf(3745,plain,
    ! [SV672: $i,SV635: $i,SV486: $i,SV763: $i] :
      ( ( ( ~ ( in @ SV763 @ SV486 ) )
        = $true )
      | ( ( ~ ( in @ SV763 @ SV635 ) )
        = $true )
      | ( ( in @ SV763 @ SV672 )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3692]) ).

thf(3746,plain,
    ! [SV635: $i,SV486: $i,SV672: $i] :
      ( ( ( ! [SY1050: $i] :
              ( ~ ( in @ SY1050 @ SV672 )
              | ( in @ SY1050 @ SV486 ) ) )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3693]) ).

thf(3747,plain,
    ! [SV486: $i,SV635: $i,SV672: $i] :
      ( ( ( ! [SY1051: $i] :
              ( ~ ( in @ SY1051 @ SV672 )
              | ( in @ SY1051 @ SV635 ) ) )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3694]) ).

thf(3748,plain,
    ! [SV764: $i,SV487: $i,SV755: $i] :
      ( ( ( ~ ( in @ SV755 @ ( sK32_B @ SV487 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV764 @ SV755 ) )
        = $true )
      | ( ( in @ SV764 @ ( sK32_B @ SV487 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3695]) ).

thf(3749,plain,
    ! [SV488: $i,SV698: $i,SV772: $i] :
      ( ( ( in @ ( ordered_pair @ SV772 @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 ) )
        = $true )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3698]) ).

thf(3750,plain,
    ! [SV699: $i,SV488: $i,SV773: $i] :
      ( ( ( ! [SY1121: $i] :
              ~ ( in @ ( ordered_pair @ SY1121 @ SV773 ) @ SV488 ) )
        = $true )
      | ( ( in @ SV773 @ SV699 )
        = $true )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3699]) ).

thf(3751,plain,
    ! [SV488: $i,SV699: $i,SV774: $i] :
      ( ( ( ~ ( in @ SV774 @ SV699 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK36_D @ SV774 @ SV699 @ SV488 ) @ SV774 ) @ SV488 )
        = $true )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3700]) ).

thf(3752,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 ) )
        = $true )
      | ( ( ( ( sK27_D @ SV674 @ SV649 @ SV492 )
           != SV492 ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3701]) ).

thf(3753,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 ) )
        = $true )
      | ( ( ( ( sK27_D @ SV674 @ SV649 @ SV492 )
           != SV649 ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3702]) ).

thf(3754,plain,
    ! [SV650: $i,SV492: $i,SV675: $i,SV765: $i] :
      ( ( ( in @ SV765 @ SV675 )
        = $false )
      | ( ( ( SV765 = SV492 )
          | ( SV765 = SV650 ) )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3703]) ).

thf(3755,plain,
    ! [SV650: $i,SV675: $i,SV492: $i] :
      ( ( ( ! [SY1053: $i] :
              ( ( SY1053 != SV492 )
              | ( in @ SY1053 @ SV675 ) ) )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3704]) ).

thf(3756,plain,
    ! [SV492: $i,SV675: $i,SV650: $i] :
      ( ( ( ! [SY1054: $i] :
              ( ( SY1054 != SV650 )
              | ( in @ SY1054 @ SV675 ) ) )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3705]) ).

thf(3757,plain,
    ! [SV679: $i,SV658: $i,SV775: $i,SV495: $i,SV766: $i] :
      ( ( ( ~ ( in @ SV766 @ SV495 )
          | ~ ( in @ SV775 @ SV658 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV679 @ SV658 @ SV495 )
           != ( ordered_pair @ SV766 @ SV775 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3708]) ).

thf(3758,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
              | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3709]) ).

thf(3759,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ( sK23_D @ SV679 @ SV658 @ SV495 )
          = ( ordered_pair @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3710]) ).

thf(3760,plain,
    ! [SV680: $i,SV767: $i,SV659: $i,SV495: $i,SV779: $i] :
      ( ( ( ! [SY1123: $i] :
              ( ~ ( in @ SV779 @ SV495 )
              | ~ ( in @ SY1123 @ SV659 )
              | ( SV767
               != ( ordered_pair @ SV779 @ SY1123 ) ) ) )
        = $true )
      | ( ( in @ SV767 @ SV680 )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3711]) ).

thf(3761,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                    | ~ ( in @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
              | ( SV768
               != ( ordered_pair @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) ) ) ) )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3712]) ).

thf(3762,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 )
        = $false )
      | ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
        = $true )
      | ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
        = $false )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3713]) ).

thf(3763,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV497 )
        = $true )
      | ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3714]) ).

thf(3764,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 ) )
        = $true )
      | ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3715]) ).

thf(3765,plain,
    ! [SV682: $i,SV663: $i,SV497: $i,SV769: $i] :
      ( ( ( ~ ( in @ SV769 @ SV497 ) )
        = $true )
      | ( ( in @ SV769 @ SV663 )
        = $true )
      | ( ( in @ SV769 @ SV682 )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3716]) ).

thf(3766,plain,
    ! [SV663: $i,SV497: $i,SV682: $i] :
      ( ( ( ! [SY1063: $i] :
              ( ~ ( in @ SY1063 @ SV682 )
              | ( in @ SY1063 @ SV497 ) ) )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3717]) ).

thf(3767,plain,
    ! [SV497: $i,SV663: $i,SV682: $i] :
      ( ( ( ! [SY1064: $i] :
              ( ~ ( in @ SY1064 @ SV682 )
              | ~ ( in @ SY1064 @ SV663 ) ) )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3718]) ).

thf(3768,plain,
    ! [SV776: $i,SV498: $i,SV712: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ SV776 ) @ SV498 )
        = $false )
      | ( ( ~ ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 ) )
        = $true )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3719]) ).

thf(3769,plain,
    ! [SV713: $i,SV498: $i,SV777: $i] :
      ( ( ( ! [SY1122: $i] :
              ~ ( in @ ( ordered_pair @ SV777 @ SY1122 ) @ SV498 ) )
        = $true )
      | ( ( in @ SV777 @ SV713 )
        = $true )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3720]) ).

thf(3770,plain,
    ! [SV498: $i,SV713: $i,SV778: $i] :
      ( ( ( ~ ( in @ SV778 @ SV713 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV778 @ ( sK39_D @ SV778 @ SV713 @ SV498 ) ) @ SV498 )
        = $true )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3721]) ).

thf(3771,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( ! [SY1109: $i] :
                  ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SY1109 ) @ SV477 )
                  | ~ ( in @ ( ordered_pair @ SY1109 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
              | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) ) )
        = $false )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3722]) ).

thf(3772,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
                  | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
              | ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) ) )
        = $false )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3722]) ).

thf(3773,plain,
    ! [SV740: $i,SV564: $i,SV477: $i] :
      ( ( ( ~ ! [SY1110: $i,SY1111: $i] :
                ( ! [SY947: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1110 @ SY947 ) @ SV477 )
                    | ~ ( in @ ( ordered_pair @ SY947 @ SY1111 ) @ SV564 ) )
                | ( in @ ( ordered_pair @ SY1110 @ SY1111 ) @ SV740 ) )
          | ~ ! [SY1113: $i,SY1114: $i] :
                ( ~ ( in @ ( ordered_pair @ SY1113 @ SY1114 ) @ SV740 )
                | ~ ( ~ ( in @ ( ordered_pair @ SY1113 @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
                    | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) @ SY1114 ) @ SV564 ) ) ) )
        = $false )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3723]) ).

thf(3774,plain,
    ! [SV478: $i,SV714: $i,SV770: $i] :
      ( ( ( subset @ SV770 @ SV714 )
        = $false )
      | ( ( in @ SV770 @ ( sK3_SY300 @ SV714 @ SV478 ) )
        = $true )
      | ( ( ~ ( in @ SV714 @ ( sK2_B @ SV478 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3724]) ).

thf(3775,plain,
    ! [SV761: $i,SV478: $i,SV750: $i] :
      ( ( ( in @ SV750 @ ( sK2_B @ SV478 ) )
        = $false )
      | ( ( ~ ( subset @ SV761 @ SV750 ) )
        = $true )
      | ( ( in @ SV761 @ ( sK2_B @ SV478 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3725]) ).

thf(3776,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 ) )
        = $true )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3726]) ).

thf(3777,plain,
    ! [SV481: $i,SV687: $i,SV780: $i] :
      ( ( ( ! [SY1124: $i] :
              ( ~ ( in @ ( ordered_pair @ SV780 @ SY1124 ) @ SV687 )
              | ( in @ ( ordered_pair @ SY1124 @ SV780 ) @ SV481 ) ) )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3728]) ).

thf(3778,plain,
    ! [SV687: $i,SV481: $i,SV781: $i] :
      ( ( ( ! [SY1125: $i] :
              ( ~ ( in @ ( ordered_pair @ SY1125 @ SV781 ) @ SV481 )
              | ( in @ ( ordered_pair @ SV781 @ SY1125 ) @ SV687 ) ) )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3729]) ).

thf(3779,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
        = $false )
      | ( ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3730]) ).

thf(3780,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
        = $false )
      | ( ( ~ ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 ) )
        = $true )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3731]) ).

thf(3781,plain,
    ! [SV670: $i,SV629: $i,SV485: $i,SV762: $i] :
      ( ( ( in @ SV762 @ SV485 )
        = $true )
      | ( ( in @ SV762 @ SV629 )
        = $true )
      | ( ( in @ SV762 @ SV670 )
        = $false )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3732]) ).

thf(3782,plain,
    ! [SV629: $i,SV670: $i,SV485: $i,SV782: $i] :
      ( ( ( ~ ( in @ SV782 @ SV485 )
          | ( in @ SV782 @ SV670 ) )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3733]) ).

thf(3783,plain,
    ! [SV485: $i,SV670: $i,SV629: $i,SV783: $i] :
      ( ( ( ~ ( in @ SV783 @ SV629 )
          | ( in @ SV783 @ SV670 ) )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3734]) ).

thf(3784,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 )
          | ~ ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3735]) ).

thf(3785,plain,
    ! [SV730: $i,SV693: $i,SV784: $i] :
      ( ( ( ~ ( in @ SV784 @ SV693 )
          | ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV784 ) )
        = $true )
      | ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3736]) ).

thf(3786,plain,
    ! [SV694: $i,SV731: $i,SV785: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK43_D @ SV785 @ SV731 @ SV694 ) @ SV694 )
              | ~ ~ ( in @ SV785 @ ( sK43_D @ SV785 @ SV731 @ SV694 ) ) )
          | ( in @ SV785 @ SV731 ) )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3737]) ).

thf(3787,plain,
    ! [SV694: $i,SV731: $i,SV786: $i] :
      ( ( ( ~ ( in @ SV786 @ SV731 )
          | ! [SY1126: $i] :
              ( ~ ( in @ SY1126 @ SV694 )
              | ( in @ SV786 @ SY1126 ) ) )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3738]) ).

thf(3788,plain,
    ! [SV752: $i,SV577: $i,SV632: $i] :
      ( ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV632 )
        = $false )
      | ( ( in @ ( sK17_C @ SV632 @ SV577 ) @ SV752 )
        = $false )
      | ( ( in @ SV752 @ SV577 )
        = $false )
      | ( ( SV632
          = ( union @ SV577 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3739]) ).

thf(3789,plain,
    ! [SV633: $i,SV578: $i,SV771: $i,SV753: $i] :
      ( ( ( in @ SV753 @ SV771 )
        = $false )
      | ( ( ~ ( in @ SV771 @ SV578 ) )
        = $true )
      | ( ( in @ SV753 @ SV633 )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3740]) ).

thf(3790,plain,
    ! [SV578: $i,SV633: $i,SV754: $i] :
      ( ( ( ~ ( in @ SV754 @ ( sK16_D @ SV754 @ SV633 @ SV578 ) ) )
        = $false )
      | ( ( in @ SV754 @ SV633 )
        = $false )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3741]) ).

thf(3791,plain,
    ! [SV578: $i,SV633: $i,SV754: $i] :
      ( ( ( ~ ( in @ ( sK16_D @ SV754 @ SV633 @ SV578 ) @ SV578 ) )
        = $false )
      | ( ( in @ SV754 @ SV633 )
        = $false )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3741]) ).

thf(3792,plain,
    ! [SV486: $i,SV634: $i,SV671: $i] :
      ( ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV671 )
        = $false )
      | ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV486 )
        = $false )
      | ( ( in @ ( sK19_D @ SV671 @ SV634 @ SV486 ) @ SV634 )
        = $false )
      | ( ( SV671
          = ( set_intersection2 @ SV486 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3742]) ).

thf(3793,plain,
    ! [SV672: $i,SV635: $i,SV486: $i,SV763: $i] :
      ( ( ( in @ SV763 @ SV486 )
        = $false )
      | ( ( ~ ( in @ SV763 @ SV635 ) )
        = $true )
      | ( ( in @ SV763 @ SV672 )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3745]) ).

thf(3794,plain,
    ! [SV635: $i,SV486: $i,SV672: $i,SV787: $i] :
      ( ( ( ~ ( in @ SV787 @ SV672 )
          | ( in @ SV787 @ SV486 ) )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3746]) ).

thf(3795,plain,
    ! [SV486: $i,SV635: $i,SV672: $i,SV788: $i] :
      ( ( ( ~ ( in @ SV788 @ SV672 )
          | ( in @ SV788 @ SV635 ) )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3747]) ).

thf(3796,plain,
    ! [SV764: $i,SV487: $i,SV755: $i] :
      ( ( ( in @ SV755 @ ( sK32_B @ SV487 ) )
        = $false )
      | ( ( ~ ( subset @ SV764 @ SV755 ) )
        = $true )
      | ( ( in @ SV764 @ ( sK32_B @ SV487 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3748]) ).

thf(3797,plain,
    ! [SV772: $i,SV488: $i,SV698: $i] :
      ( ( ( in @ ( sK37_C @ SV698 @ SV488 ) @ SV698 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV772 @ ( sK37_C @ SV698 @ SV488 ) ) @ SV488 )
        = $false )
      | ( ( SV698
          = ( relation_rng @ SV488 ) )
        = $true )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3749]) ).

thf(3798,plain,
    ! [SV699: $i,SV488: $i,SV773: $i,SV789: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV789 @ SV773 ) @ SV488 ) )
        = $true )
      | ( ( in @ SV773 @ SV699 )
        = $true )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3750]) ).

thf(3799,plain,
    ! [SV488: $i,SV699: $i,SV774: $i] :
      ( ( ( in @ SV774 @ SV699 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK36_D @ SV774 @ SV699 @ SV488 ) @ SV774 ) @ SV488 )
        = $true )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3751]) ).

thf(3800,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
        = $false )
      | ( ( ( ( sK27_D @ SV674 @ SV649 @ SV492 )
           != SV492 ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3752]) ).

thf(3801,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
        = $false )
      | ( ( ( ( sK27_D @ SV674 @ SV649 @ SV492 )
           != SV649 ) )
        = $true )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3753]) ).

thf(3802,plain,
    ! [SV675: $i,SV650: $i,SV492: $i,SV765: $i] :
      ( ( ( SV765 = SV492 )
        = $true )
      | ( ( SV765 = SV650 )
        = $true )
      | ( ( in @ SV765 @ SV675 )
        = $false )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3754]) ).

thf(3803,plain,
    ! [SV650: $i,SV675: $i,SV492: $i,SV790: $i] :
      ( ( ( ( SV790 != SV492 )
          | ( in @ SV790 @ SV675 ) )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3755]) ).

thf(3804,plain,
    ! [SV492: $i,SV675: $i,SV650: $i,SV791: $i] :
      ( ( ( ( SV791 != SV650 )
          | ( in @ SV791 @ SV675 ) )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3756]) ).

thf(3805,plain,
    ! [SV679: $i,SV658: $i,SV775: $i,SV495: $i,SV766: $i] :
      ( ( ( ~ ( in @ SV766 @ SV495 ) )
        = $true )
      | ( ( ~ ( in @ SV775 @ SV658 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV679 @ SV658 @ SV495 )
           != ( ordered_pair @ SV766 @ SV775 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3757]) ).

thf(3806,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
          | ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3758]) ).

thf(3807,plain,
    ! [SV680: $i,SV767: $i,SV659: $i,SV792: $i,SV495: $i,SV779: $i] :
      ( ( ( ~ ( in @ SV779 @ SV495 )
          | ~ ( in @ SV792 @ SV659 )
          | ( SV767
           != ( ordered_pair @ SV779 @ SV792 ) ) )
        = $true )
      | ( ( in @ SV767 @ SV680 )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3760]) ).

thf(3808,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                | ~ ( in @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
          | ( SV768
           != ( ordered_pair @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) ) ) )
        = $false )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3761]) ).

thf(3809,plain,
    ! [SV497: $i,SV662: $i,SV681: $i] :
      ( ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV662 )
        = $false )
      | ( ( in @ ( sK15_D @ SV681 @ SV662 @ SV497 ) @ SV681 )
        = $true )
      | ( ( SV681
          = ( set_difference @ SV497 @ SV662 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3764]) ).

thf(3810,plain,
    ! [SV682: $i,SV663: $i,SV497: $i,SV769: $i] :
      ( ( ( in @ SV769 @ SV497 )
        = $false )
      | ( ( in @ SV769 @ SV663 )
        = $true )
      | ( ( in @ SV769 @ SV682 )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3765]) ).

thf(3811,plain,
    ! [SV663: $i,SV497: $i,SV682: $i,SV793: $i] :
      ( ( ( ~ ( in @ SV793 @ SV682 )
          | ( in @ SV793 @ SV497 ) )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3766]) ).

thf(3812,plain,
    ! [SV497: $i,SV663: $i,SV682: $i,SV794: $i] :
      ( ( ( ~ ( in @ SV794 @ SV682 )
          | ~ ( in @ SV794 @ SV663 ) )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3767]) ).

thf(3813,plain,
    ! [SV776: $i,SV498: $i,SV712: $i] :
      ( ( ( in @ ( sK40_C @ SV712 @ SV498 ) @ SV712 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK40_C @ SV712 @ SV498 ) @ SV776 ) @ SV498 )
        = $false )
      | ( ( SV712
          = ( relation_dom @ SV498 ) )
        = $true )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3768]) ).

thf(3814,plain,
    ! [SV713: $i,SV498: $i,SV795: $i,SV777: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV777 @ SV795 ) @ SV498 ) )
        = $true )
      | ( ( in @ SV777 @ SV713 )
        = $true )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3769]) ).

thf(3815,plain,
    ! [SV498: $i,SV713: $i,SV778: $i] :
      ( ( ( in @ SV778 @ SV713 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV778 @ ( sK39_D @ SV778 @ SV713 @ SV498 ) ) @ SV498 )
        = $true )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3770]) ).

thf(3816,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ! [SY1109: $i] :
              ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SY1109 ) @ SV477 )
              | ~ ( in @ ( ordered_pair @ SY1109 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
          | ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3771]) ).

thf(3817,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
              | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
          | ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3772]) ).

thf(3818,plain,
    ! [SV740: $i,SV564: $i,SV477: $i] :
      ( ( ( ~ ! [SY1110: $i,SY1111: $i] :
                ( ! [SY947: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY1110 @ SY947 ) @ SV477 )
                    | ~ ( in @ ( ordered_pair @ SY947 @ SY1111 ) @ SV564 ) )
                | ( in @ ( ordered_pair @ SY1110 @ SY1111 ) @ SV740 ) ) )
        = $false )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3773]) ).

thf(3819,plain,
    ! [SV477: $i,SV564: $i,SV740: $i] :
      ( ( ( ~ ! [SY1113: $i,SY1114: $i] :
                ( ~ ( in @ ( ordered_pair @ SY1113 @ SY1114 ) @ SV740 )
                | ~ ( ~ ( in @ ( ordered_pair @ SY1113 @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
                    | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) @ SY1114 ) @ SV564 ) ) ) )
        = $false )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3773]) ).

thf(3820,plain,
    ! [SV770: $i,SV478: $i,SV714: $i] :
      ( ( ( in @ SV714 @ ( sK2_B @ SV478 ) )
        = $false )
      | ( ( in @ SV770 @ ( sK3_SY300 @ SV714 @ SV478 ) )
        = $true )
      | ( ( subset @ SV770 @ SV714 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3774]) ).

thf(3821,plain,
    ! [SV478: $i,SV750: $i,SV761: $i] :
      ( ( ( subset @ SV761 @ SV750 )
        = $false )
      | ( ( in @ SV750 @ ( sK2_B @ SV478 ) )
        = $false )
      | ( ( in @ SV761 @ ( sK2_B @ SV478 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3775]) ).

thf(3822,plain,
    ! [SV481: $i,SV686: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK14_SY310 @ SV686 @ SV481 ) @ ( sK13_C @ SV686 @ SV481 ) ) @ SV481 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK13_C @ SV686 @ SV481 ) @ ( sK14_SY310 @ SV686 @ SV481 ) ) @ SV686 )
        = $false )
      | ( ( SV686
          = ( relation_inverse @ SV481 ) )
        = $true )
      | ( ( relation @ SV686 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3776]) ).

thf(3823,plain,
    ! [SV481: $i,SV687: $i,SV796: $i,SV780: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV780 @ SV796 ) @ SV687 )
          | ( in @ ( ordered_pair @ SV796 @ SV780 ) @ SV481 ) )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3777]) ).

thf(3824,plain,
    ! [SV687: $i,SV481: $i,SV781: $i,SV797: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV797 @ SV781 ) @ SV481 )
          | ( in @ ( ordered_pair @ SV781 @ SV797 ) @ SV687 ) )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3778]) ).

thf(3825,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV485 )
        = $false )
      | ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
        = $false )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3779]) ).

thf(3826,plain,
    ! [SV485: $i,SV628: $i,SV669: $i] :
      ( ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV628 )
        = $false )
      | ( ( in @ ( sK26_D @ SV669 @ SV628 @ SV485 ) @ SV669 )
        = $false )
      | ( ( SV669
          = ( set_union2 @ SV485 @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3780]) ).

thf(3827,plain,
    ! [SV629: $i,SV670: $i,SV485: $i,SV782: $i] :
      ( ( ( ~ ( in @ SV782 @ SV485 ) )
        = $true )
      | ( ( in @ SV782 @ SV670 )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3782]) ).

thf(3828,plain,
    ! [SV485: $i,SV670: $i,SV629: $i,SV783: $i] :
      ( ( ( ~ ( in @ SV783 @ SV629 ) )
        = $true )
      | ( ( in @ SV783 @ SV670 )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3783]) ).

thf(3829,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 ) )
        = $false )
      | ( ( ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3784]) ).

thf(3830,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3784]) ).

thf(3831,plain,
    ! [SV730: $i,SV693: $i,SV784: $i] :
      ( ( ( ~ ( in @ SV784 @ SV693 ) )
        = $true )
      | ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV784 )
        = $true )
      | ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3785]) ).

thf(3832,plain,
    ! [SV694: $i,SV731: $i,SV785: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK43_D @ SV785 @ SV731 @ SV694 ) @ SV694 )
              | ~ ~ ( in @ SV785 @ ( sK43_D @ SV785 @ SV731 @ SV694 ) ) ) )
        = $true )
      | ( ( in @ SV785 @ SV731 )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3786]) ).

thf(3833,plain,
    ! [SV694: $i,SV731: $i,SV786: $i] :
      ( ( ( ~ ( in @ SV786 @ SV731 ) )
        = $true )
      | ( ( ! [SY1126: $i] :
              ( ~ ( in @ SY1126 @ SV694 )
              | ( in @ SV786 @ SY1126 ) ) )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3787]) ).

thf(3834,plain,
    ! [SV633: $i,SV753: $i,SV578: $i,SV771: $i] :
      ( ( ( in @ SV771 @ SV578 )
        = $false )
      | ( ( in @ SV753 @ SV771 )
        = $false )
      | ( ( in @ SV753 @ SV633 )
        = $true )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3789]) ).

thf(3835,plain,
    ! [SV578: $i,SV633: $i,SV754: $i] :
      ( ( ( in @ SV754 @ ( sK16_D @ SV754 @ SV633 @ SV578 ) )
        = $true )
      | ( ( in @ SV754 @ SV633 )
        = $false )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3790]) ).

thf(3836,plain,
    ! [SV578: $i,SV633: $i,SV754: $i] :
      ( ( ( in @ ( sK16_D @ SV754 @ SV633 @ SV578 ) @ SV578 )
        = $true )
      | ( ( in @ SV754 @ SV633 )
        = $false )
      | ( ( SV633
          = ( union @ SV578 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3791]) ).

thf(3837,plain,
    ! [SV672: $i,SV486: $i,SV635: $i,SV763: $i] :
      ( ( ( in @ SV763 @ SV635 )
        = $false )
      | ( ( in @ SV763 @ SV486 )
        = $false )
      | ( ( in @ SV763 @ SV672 )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3793]) ).

thf(3838,plain,
    ! [SV635: $i,SV486: $i,SV672: $i,SV787: $i] :
      ( ( ( ~ ( in @ SV787 @ SV672 ) )
        = $true )
      | ( ( in @ SV787 @ SV486 )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3794]) ).

thf(3839,plain,
    ! [SV486: $i,SV635: $i,SV672: $i,SV788: $i] :
      ( ( ( ~ ( in @ SV788 @ SV672 ) )
        = $true )
      | ( ( in @ SV788 @ SV635 )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3795]) ).

thf(3840,plain,
    ! [SV487: $i,SV755: $i,SV764: $i] :
      ( ( ( subset @ SV764 @ SV755 )
        = $false )
      | ( ( in @ SV755 @ ( sK32_B @ SV487 ) )
        = $false )
      | ( ( in @ SV764 @ ( sK32_B @ SV487 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3796]) ).

thf(3841,plain,
    ! [SV699: $i,SV488: $i,SV773: $i,SV789: $i] :
      ( ( ( in @ ( ordered_pair @ SV789 @ SV773 ) @ SV488 )
        = $false )
      | ( ( in @ SV773 @ SV699 )
        = $true )
      | ( ( SV699
          = ( relation_rng @ SV488 ) )
        = $false )
      | ( ( relation @ SV488 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3798]) ).

thf(3842,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ( sK27_D @ SV674 @ SV649 @ SV492 )
          = SV492 )
        = $false )
      | ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
        = $false )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3800]) ).

thf(3843,plain,
    ! [SV492: $i,SV649: $i,SV674: $i] :
      ( ( ( ( sK27_D @ SV674 @ SV649 @ SV492 )
          = SV649 )
        = $false )
      | ( ( in @ ( sK27_D @ SV674 @ SV649 @ SV492 ) @ SV674 )
        = $false )
      | ( ( SV674
          = ( unordered_pair @ SV492 @ SV649 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3801]) ).

thf(3844,plain,
    ! [SV650: $i,SV675: $i,SV492: $i,SV790: $i] :
      ( ( ( ( SV790 != SV492 ) )
        = $true )
      | ( ( in @ SV790 @ SV675 )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3803]) ).

thf(3845,plain,
    ! [SV492: $i,SV675: $i,SV650: $i,SV791: $i] :
      ( ( ( ( SV791 != SV650 ) )
        = $true )
      | ( ( in @ SV791 @ SV675 )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3804]) ).

thf(3846,plain,
    ! [SV679: $i,SV658: $i,SV775: $i,SV495: $i,SV766: $i] :
      ( ( ( in @ SV766 @ SV495 )
        = $false )
      | ( ( ~ ( in @ SV775 @ SV658 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV679 @ SV658 @ SV495 )
           != ( ordered_pair @ SV766 @ SV775 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3805]) ).

thf(3847,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ~ ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3806]) ).

thf(3848,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ~ ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3806]) ).

thf(3849,plain,
    ! [SV680: $i,SV767: $i,SV659: $i,SV792: $i,SV495: $i,SV779: $i] :
      ( ( ( ~ ( in @ SV779 @ SV495 )
          | ~ ( in @ SV792 @ SV659 ) )
        = $true )
      | ( ( ( SV767
           != ( ordered_pair @ SV779 @ SV792 ) ) )
        = $true )
      | ( ( in @ SV767 @ SV680 )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3807]) ).

thf(3850,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV495 )
                | ~ ( in @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV659 ) ) )
        = $false )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3808]) ).

thf(3851,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( ( SV768
           != ( ordered_pair @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) ) ) )
        = $false )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3808]) ).

thf(3852,plain,
    ! [SV663: $i,SV497: $i,SV682: $i,SV793: $i] :
      ( ( ( ~ ( in @ SV793 @ SV682 ) )
        = $true )
      | ( ( in @ SV793 @ SV497 )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3811]) ).

thf(3853,plain,
    ! [SV497: $i,SV663: $i,SV682: $i,SV794: $i] :
      ( ( ( ~ ( in @ SV794 @ SV682 ) )
        = $true )
      | ( ( ~ ( in @ SV794 @ SV663 ) )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3812]) ).

thf(3854,plain,
    ! [SV713: $i,SV498: $i,SV795: $i,SV777: $i] :
      ( ( ( in @ ( ordered_pair @ SV777 @ SV795 ) @ SV498 )
        = $false )
      | ( ( in @ SV777 @ SV713 )
        = $true )
      | ( ( SV713
          = ( relation_dom @ SV498 ) )
        = $false )
      | ( ( relation @ SV498 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3814]) ).

thf(3855,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ! [SY1109: $i] :
              ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SY1109 ) @ SV477 )
              | ~ ( in @ ( ordered_pair @ SY1109 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3816]) ).

thf(3856,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
              | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3817]) ).

thf(3857,plain,
    ! [SV740: $i,SV564: $i,SV477: $i] :
      ( ( ( ! [SY1110: $i,SY1111: $i] :
              ( ! [SY947: $i] :
                  ( ~ ( in @ ( ordered_pair @ SY1110 @ SY947 ) @ SV477 )
                  | ~ ( in @ ( ordered_pair @ SY947 @ SY1111 ) @ SV564 ) )
              | ( in @ ( ordered_pair @ SY1110 @ SY1111 ) @ SV740 ) ) )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3818]) ).

thf(3858,plain,
    ! [SV477: $i,SV564: $i,SV740: $i] :
      ( ( ( ! [SY1113: $i,SY1114: $i] :
              ( ~ ( in @ ( ordered_pair @ SY1113 @ SY1114 ) @ SV740 )
              | ~ ( ~ ( in @ ( ordered_pair @ SY1113 @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY1114 @ SY1113 @ SV740 @ SV564 @ SV477 ) @ SY1114 ) @ SV564 ) ) ) )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3819]) ).

thf(3859,plain,
    ! [SV481: $i,SV687: $i,SV796: $i,SV780: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV780 @ SV796 ) @ SV687 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV796 @ SV780 ) @ SV481 )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3823]) ).

thf(3860,plain,
    ! [SV687: $i,SV481: $i,SV781: $i,SV797: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV797 @ SV781 ) @ SV481 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV781 @ SV797 ) @ SV687 )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3824]) ).

thf(3861,plain,
    ! [SV629: $i,SV670: $i,SV485: $i,SV782: $i] :
      ( ( ( in @ SV782 @ SV485 )
        = $false )
      | ( ( in @ SV782 @ SV670 )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3827]) ).

thf(3862,plain,
    ! [SV485: $i,SV670: $i,SV629: $i,SV783: $i] :
      ( ( ( in @ SV783 @ SV629 )
        = $false )
      | ( ( in @ SV783 @ SV670 )
        = $true )
      | ( ( SV670
          = ( set_union2 @ SV485 @ SV629 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3828]) ).

thf(3863,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 )
        = $true )
      | ( ( ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3829]) ).

thf(3864,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3830]) ).

thf(3865,plain,
    ! [SV730: $i,SV693: $i,SV784: $i] :
      ( ( ( in @ SV784 @ SV693 )
        = $false )
      | ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV784 )
        = $true )
      | ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3831]) ).

thf(3866,plain,
    ! [SV694: $i,SV731: $i,SV785: $i] :
      ( ( ( ~ ( in @ ( sK43_D @ SV785 @ SV731 @ SV694 ) @ SV694 )
          | ~ ~ ( in @ SV785 @ ( sK43_D @ SV785 @ SV731 @ SV694 ) ) )
        = $false )
      | ( ( in @ SV785 @ SV731 )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3832]) ).

thf(3867,plain,
    ! [SV694: $i,SV731: $i,SV786: $i] :
      ( ( ( in @ SV786 @ SV731 )
        = $false )
      | ( ( ! [SY1126: $i] :
              ( ~ ( in @ SY1126 @ SV694 )
              | ( in @ SV786 @ SY1126 ) ) )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3833]) ).

thf(3868,plain,
    ! [SV635: $i,SV486: $i,SV672: $i,SV787: $i] :
      ( ( ( in @ SV787 @ SV672 )
        = $false )
      | ( ( in @ SV787 @ SV486 )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3838]) ).

thf(3869,plain,
    ! [SV486: $i,SV635: $i,SV672: $i,SV788: $i] :
      ( ( ( in @ SV788 @ SV672 )
        = $false )
      | ( ( in @ SV788 @ SV635 )
        = $true )
      | ( ( SV672
          = ( set_intersection2 @ SV486 @ SV635 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3839]) ).

thf(3870,plain,
    ! [SV650: $i,SV675: $i,SV492: $i,SV790: $i] :
      ( ( ( SV790 = SV492 )
        = $false )
      | ( ( in @ SV790 @ SV675 )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3844]) ).

thf(3871,plain,
    ! [SV492: $i,SV675: $i,SV650: $i,SV791: $i] :
      ( ( ( SV791 = SV650 )
        = $false )
      | ( ( in @ SV791 @ SV675 )
        = $true )
      | ( ( SV675
          = ( unordered_pair @ SV492 @ SV650 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3845]) ).

thf(3872,plain,
    ! [SV679: $i,SV495: $i,SV766: $i,SV658: $i,SV775: $i] :
      ( ( ( in @ SV775 @ SV658 )
        = $false )
      | ( ( in @ SV766 @ SV495 )
        = $false )
      | ( ( ( ( sK23_D @ SV679 @ SV658 @ SV495 )
           != ( ordered_pair @ SV766 @ SV775 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3846]) ).

thf(3873,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( in @ ( sK24_SY316 @ SV679 @ SV658 @ SV495 ) @ SV495 )
        = $true )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3847]) ).

thf(3874,plain,
    ! [SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( in @ ( sK25_SY318 @ SV679 @ SV658 @ SV495 ) @ SV658 )
        = $true )
      | ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3848]) ).

thf(3875,plain,
    ! [SV680: $i,SV767: $i,SV659: $i,SV792: $i,SV495: $i,SV779: $i] :
      ( ( ( ~ ( in @ SV779 @ SV495 ) )
        = $true )
      | ( ( ~ ( in @ SV792 @ SV659 ) )
        = $true )
      | ( ( ( SV767
           != ( ordered_pair @ SV779 @ SV792 ) ) )
        = $true )
      | ( ( in @ SV767 @ SV680 )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3849]) ).

thf(3876,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV495 )
              | ~ ( in @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV659 ) ) )
        = $true )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3850]) ).

thf(3877,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( SV768
          = ( ordered_pair @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) ) )
        = $true )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3851]) ).

thf(3878,plain,
    ! [SV663: $i,SV497: $i,SV682: $i,SV793: $i] :
      ( ( ( in @ SV793 @ SV682 )
        = $false )
      | ( ( in @ SV793 @ SV497 )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3852]) ).

thf(3879,plain,
    ! [SV497: $i,SV663: $i,SV682: $i,SV794: $i] :
      ( ( ( in @ SV794 @ SV682 )
        = $false )
      | ( ( ~ ( in @ SV794 @ SV663 ) )
        = $true )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3853]) ).

thf(3880,plain,
    ! [SV798: $i,SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SV798 ) @ SV477 )
          | ~ ( in @ ( ordered_pair @ SV798 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3855]) ).

thf(3881,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
          | ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3856]) ).

thf(3882,plain,
    ! [SV740: $i,SV564: $i,SV477: $i,SV799: $i] :
      ( ( ( ! [SY1127: $i] :
              ( ! [SY1128: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV799 @ SY1128 ) @ SV477 )
                  | ~ ( in @ ( ordered_pair @ SY1128 @ SY1127 ) @ SV564 ) )
              | ( in @ ( ordered_pair @ SV799 @ SY1127 ) @ SV740 ) ) )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3857]) ).

thf(3883,plain,
    ! [SV477: $i,SV564: $i,SV740: $i,SV800: $i] :
      ( ( ( ! [SY1129: $i] :
              ( ~ ( in @ ( ordered_pair @ SV800 @ SY1129 ) @ SV740 )
              | ~ ( ~ ( in @ ( ordered_pair @ SV800 @ ( sK9_F @ SY1129 @ SV800 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
                  | ~ ( in @ ( ordered_pair @ ( sK9_F @ SY1129 @ SV800 @ SV740 @ SV564 @ SV477 ) @ SY1129 ) @ SV564 ) ) ) )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3858]) ).

thf(3884,plain,
    ! [SV481: $i,SV687: $i,SV796: $i,SV780: $i] :
      ( ( ( in @ ( ordered_pair @ SV780 @ SV796 ) @ SV687 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV796 @ SV780 ) @ SV481 )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3859]) ).

thf(3885,plain,
    ! [SV687: $i,SV481: $i,SV781: $i,SV797: $i] :
      ( ( ( in @ ( ordered_pair @ SV797 @ SV781 ) @ SV481 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV781 @ SV797 ) @ SV687 )
        = $true )
      | ( ( SV687
          = ( relation_inverse @ SV481 ) )
        = $false )
      | ( ( relation @ SV687 )
        = $false )
      | ( ( relation @ SV481 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3860]) ).

thf(3886,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 )
        = $false )
      | ( ( in @ ( sK45_SY327 @ SV730 @ SV693 ) @ SV693 )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3863]) ).

thf(3887,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) )
        = $false )
      | ( ( ~ ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 ) )
        = $true )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3864]) ).

thf(3888,plain,
    ! [SV694: $i,SV731: $i,SV785: $i] :
      ( ( ( ~ ( in @ ( sK43_D @ SV785 @ SV731 @ SV694 ) @ SV694 ) )
        = $false )
      | ( ( in @ SV785 @ SV731 )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3866]) ).

thf(3889,plain,
    ! [SV694: $i,SV731: $i,SV785: $i] :
      ( ( ( ~ ~ ( in @ SV785 @ ( sK43_D @ SV785 @ SV731 @ SV694 ) ) )
        = $false )
      | ( ( in @ SV785 @ SV731 )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3866]) ).

thf(3890,plain,
    ! [SV731: $i,SV786: $i,SV694: $i,SV801: $i] :
      ( ( ( ~ ( in @ SV801 @ SV694 )
          | ( in @ SV786 @ SV801 ) )
        = $true )
      | ( ( in @ SV786 @ SV731 )
        = $false )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3867]) ).

thf(3891,plain,
    ! [SV775: $i,SV766: $i,SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( ( sK23_D @ SV679 @ SV658 @ SV495 )
          = ( ordered_pair @ SV766 @ SV775 ) )
        = $false )
      | ( ( in @ SV766 @ SV495 )
        = $false )
      | ( ( in @ SV775 @ SV658 )
        = $false )
      | ( ( ~ ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 ) )
        = $true )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3872]) ).

thf(3892,plain,
    ! [SV680: $i,SV767: $i,SV659: $i,SV792: $i,SV495: $i,SV779: $i] :
      ( ( ( in @ SV779 @ SV495 )
        = $false )
      | ( ( ~ ( in @ SV792 @ SV659 ) )
        = $true )
      | ( ( ( SV767
           != ( ordered_pair @ SV779 @ SV792 ) ) )
        = $true )
      | ( ( in @ SV767 @ SV680 )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3875]) ).

thf(3893,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( ~ ( in @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV495 )
          | ~ ( in @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
        = $false )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3876]) ).

thf(3894,plain,
    ! [SV497: $i,SV682: $i,SV663: $i,SV794: $i] :
      ( ( ( in @ SV794 @ SV663 )
        = $false )
      | ( ( in @ SV794 @ SV682 )
        = $false )
      | ( ( SV682
          = ( set_difference @ SV497 @ SV663 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3879]) ).

thf(3895,plain,
    ! [SV798: $i,SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SV798 ) @ SV477 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV798 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3880]) ).

thf(3896,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3881]) ).

thf(3897,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3881]) ).

thf(3898,plain,
    ! [SV740: $i,SV564: $i,SV802: $i,SV477: $i,SV799: $i] :
      ( ( ( ! [SY1130: $i] :
              ( ~ ( in @ ( ordered_pair @ SV799 @ SY1130 ) @ SV477 )
              | ~ ( in @ ( ordered_pair @ SY1130 @ SV802 ) @ SV564 ) )
          | ( in @ ( ordered_pair @ SV799 @ SV802 ) @ SV740 ) )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3882]) ).

thf(3899,plain,
    ! [SV477: $i,SV564: $i,SV740: $i,SV803: $i,SV800: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV800 @ SV803 ) @ SV740 )
          | ~ ( ~ ( in @ ( ordered_pair @ SV800 @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) @ SV803 ) @ SV564 ) ) )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3883]) ).

thf(3900,plain,
    ! [SV693: $i,SV730: $i] :
      ( ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ SV730 )
        = $false )
      | ( ( in @ ( sK44_C @ SV730 @ SV693 ) @ ( sK45_SY327 @ SV730 @ SV693 ) )
        = $false )
      | ( ( SV730
          = ( set_meet @ SV693 ) )
        = $true )
      | ( ( SV693 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3887]) ).

thf(3901,plain,
    ! [SV694: $i,SV731: $i,SV785: $i] :
      ( ( ( in @ ( sK43_D @ SV785 @ SV731 @ SV694 ) @ SV694 )
        = $true )
      | ( ( in @ SV785 @ SV731 )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3888]) ).

thf(3902,plain,
    ! [SV694: $i,SV731: $i,SV785: $i] :
      ( ( ( ~ ( in @ SV785 @ ( sK43_D @ SV785 @ SV731 @ SV694 ) ) )
        = $true )
      | ( ( in @ SV785 @ SV731 )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3889]) ).

thf(3903,plain,
    ! [SV731: $i,SV786: $i,SV694: $i,SV801: $i] :
      ( ( ( ~ ( in @ SV801 @ SV694 ) )
        = $true )
      | ( ( in @ SV786 @ SV801 )
        = $true )
      | ( ( in @ SV786 @ SV731 )
        = $false )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3890]) ).

thf(3904,plain,
    ! [SV766: $i,SV775: $i,SV495: $i,SV658: $i,SV679: $i] :
      ( ( ( in @ ( sK23_D @ SV679 @ SV658 @ SV495 ) @ SV679 )
        = $false )
      | ( ( in @ SV775 @ SV658 )
        = $false )
      | ( ( in @ SV766 @ SV495 )
        = $false )
      | ( ( ( sK23_D @ SV679 @ SV658 @ SV495 )
          = ( ordered_pair @ SV766 @ SV775 ) )
        = $false )
      | ( ( SV679
          = ( cartesian_product2 @ SV495 @ SV658 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3891]) ).

thf(3905,plain,
    ! [SV680: $i,SV767: $i,SV495: $i,SV779: $i,SV659: $i,SV792: $i] :
      ( ( ( in @ SV792 @ SV659 )
        = $false )
      | ( ( in @ SV779 @ SV495 )
        = $false )
      | ( ( ( SV767
           != ( ordered_pair @ SV779 @ SV792 ) ) )
        = $true )
      | ( ( in @ SV767 @ SV680 )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3892]) ).

thf(3906,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( ~ ( in @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV495 ) )
        = $false )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3893]) ).

thf(3907,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( ~ ( in @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV659 ) )
        = $false )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3893]) ).

thf(3908,plain,
    ! [SV798: $i,SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SV798 ) @ SV477 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV798 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3895]) ).

thf(3909,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) ) @ SV477 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3896]) ).

thf(3910,plain,
    ! [SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK12_SY309 @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3897]) ).

thf(3911,plain,
    ! [SV740: $i,SV564: $i,SV802: $i,SV477: $i,SV799: $i] :
      ( ( ( ! [SY1130: $i] :
              ( ~ ( in @ ( ordered_pair @ SV799 @ SY1130 ) @ SV477 )
              | ~ ( in @ ( ordered_pair @ SY1130 @ SV802 ) @ SV564 ) ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV799 @ SV802 ) @ SV740 )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3898]) ).

thf(3912,plain,
    ! [SV477: $i,SV564: $i,SV740: $i,SV803: $i,SV800: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV800 @ SV803 ) @ SV740 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ ( ordered_pair @ SV800 @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) @ SV803 ) @ SV564 ) ) )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3899]) ).

thf(3913,plain,
    ! [SV694: $i,SV731: $i,SV785: $i] :
      ( ( ( in @ SV785 @ ( sK43_D @ SV785 @ SV731 @ SV694 ) )
        = $false )
      | ( ( in @ SV785 @ SV731 )
        = $true )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3902]) ).

thf(3914,plain,
    ! [SV731: $i,SV786: $i,SV694: $i,SV801: $i] :
      ( ( ( in @ SV801 @ SV694 )
        = $false )
      | ( ( in @ SV786 @ SV801 )
        = $true )
      | ( ( in @ SV786 @ SV731 )
        = $false )
      | ( ( SV731
          = ( set_meet @ SV694 ) )
        = $false )
      | ( ( SV694 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3903]) ).

thf(3915,plain,
    ! [SV680: $i,SV659: $i,SV495: $i,SV792: $i,SV779: $i,SV767: $i] :
      ( ( ( SV767
          = ( ordered_pair @ SV779 @ SV792 ) )
        = $false )
      | ( ( in @ SV779 @ SV495 )
        = $false )
      | ( ( in @ SV792 @ SV659 )
        = $false )
      | ( ( in @ SV767 @ SV680 )
        = $true )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3905]) ).

thf(3916,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( in @ ( sK21_E @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV495 )
        = $true )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3906]) ).

thf(3917,plain,
    ! [SV495: $i,SV659: $i,SV680: $i,SV768: $i] :
      ( ( ( in @ ( sK22_SY313 @ SV768 @ SV680 @ SV659 @ SV495 ) @ SV659 )
        = $true )
      | ( ( in @ SV768 @ SV680 )
        = $false )
      | ( ( SV680
          = ( cartesian_product2 @ SV495 @ SV659 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3907]) ).

thf(3918,plain,
    ! [SV477: $i,SV564: $i,SV739: $i,SV798: $i] :
      ( ( ( in @ ( ordered_pair @ SV798 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SV798 ) @ SV477 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 ) )
        = $true )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3908]) ).

thf(3919,plain,
    ! [SV740: $i,SV564: $i,SV802: $i,SV477: $i,SV804: $i,SV799: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV799 @ SV804 ) @ SV477 )
          | ~ ( in @ ( ordered_pair @ SV804 @ SV802 ) @ SV564 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV799 @ SV802 ) @ SV740 )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3911]) ).

thf(3920,plain,
    ! [SV477: $i,SV564: $i,SV740: $i,SV803: $i,SV800: $i] :
      ( ( ( in @ ( ordered_pair @ SV800 @ SV803 ) @ SV740 )
        = $false )
      | ( ( ~ ( ~ ( in @ ( ordered_pair @ SV800 @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
              | ~ ( in @ ( ordered_pair @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) @ SV803 ) @ SV564 ) ) )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3912]) ).

thf(3921,plain,
    ! [SV798: $i,SV477: $i,SV564: $i,SV739: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV739 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_D @ SV739 @ SV564 @ SV477 ) @ SV798 ) @ SV477 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV798 @ ( sK11_SY305 @ SV739 @ SV564 @ SV477 ) ) @ SV564 )
        = $false )
      | ( ( SV739
          = ( relation_composition @ SV477 @ SV564 ) )
        = $true )
      | ( ( relation @ SV739 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3918]) ).

thf(3922,plain,
    ! [SV740: $i,SV564: $i,SV802: $i,SV477: $i,SV804: $i,SV799: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV799 @ SV804 ) @ SV477 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV804 @ SV802 ) @ SV564 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV799 @ SV802 ) @ SV740 )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3919]) ).

thf(3923,plain,
    ! [SV477: $i,SV564: $i,SV740: $i,SV803: $i,SV800: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV800 @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
          | ~ ( in @ ( ordered_pair @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) @ SV803 ) @ SV564 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV800 @ SV803 ) @ SV740 )
        = $false )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3920]) ).

thf(3924,plain,
    ! [SV740: $i,SV564: $i,SV802: $i,SV477: $i,SV804: $i,SV799: $i] :
      ( ( ( in @ ( ordered_pair @ SV799 @ SV804 ) @ SV477 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV804 @ SV802 ) @ SV564 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV799 @ SV802 ) @ SV740 )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3922]) ).

thf(3925,plain,
    ! [SV477: $i,SV564: $i,SV740: $i,SV803: $i,SV800: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV800 @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) ) @ SV477 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV800 @ SV803 ) @ SV740 )
        = $false )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3923]) ).

thf(3926,plain,
    ! [SV477: $i,SV564: $i,SV740: $i,SV800: $i,SV803: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) @ SV803 ) @ SV564 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV800 @ SV803 ) @ SV740 )
        = $false )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3923]) ).

thf(3927,plain,
    ! [SV740: $i,SV477: $i,SV799: $i,SV564: $i,SV802: $i,SV804: $i] :
      ( ( ( in @ ( ordered_pair @ SV804 @ SV802 ) @ SV564 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV799 @ SV804 ) @ SV477 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV799 @ SV802 ) @ SV740 )
        = $true )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3924]) ).

thf(3928,plain,
    ! [SV477: $i,SV564: $i,SV740: $i,SV803: $i,SV800: $i] :
      ( ( ( in @ ( ordered_pair @ SV800 @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) ) @ SV477 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV800 @ SV803 ) @ SV740 )
        = $false )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3925]) ).

thf(3929,plain,
    ! [SV477: $i,SV564: $i,SV740: $i,SV800: $i,SV803: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK9_F @ SV803 @ SV800 @ SV740 @ SV564 @ SV477 ) @ SV803 ) @ SV564 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV800 @ SV803 ) @ SV740 )
        = $false )
      | ( ( SV740
          = ( relation_composition @ SV477 @ SV564 ) )
        = $false )
      | ( ( relation @ SV740 )
        = $false )
      | ( ( relation @ SV564 )
        = $false )
      | ( ( relation @ SV477 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3926]) ).

thf(3930,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[2178,3929,3928,3927,3921,3917,3916,3915,3914,3913,3910,3909,3904,3901,3900,3894,3886,3885,3884,3878,3877,3874,3873,3871,3870,3869,3868,3865,3862,3861,3854,3843,3842,3841,3840,3837,3836,3835,3834,3826,3825,3822,3821,3820,3815,3813,3810,3809,3802,3799,3797,3792,3788,3781,3763,3762,3759,3744,3743,3727,3707,3706,3697,3696,3686,3685,3669,3663,3650,3649,3648,3645,3642,3641,3638,3634,3622,3621,3615,3612,3611,3590,3584,3579,3578,3577,3574,3573,3568,3547,3546,3543,3524,3520,3518,3517,3507,3505,3504,3493,3491,3489,3472,3471,3468,3467,3461,3460,3459,3454,3453,3438,3426,3424,3414,3413,3389,3384,3378,3377,3359,3343,3340,3339,3338,3335,3320,3303,3290,3289,3288,3285,3280,3279,3278,3277,3272,3271,3249,3248,3247,3245,3244,3237,3236,3214,3213,3206,3201,3200,3194,3193,3178,3177,3176,3175,3174,3172,3163,3154,3136,3135,3116,3115,3111,3110,3092,3091,3065,3057,3055,3054,3051,3050,3042,3011,2945,2942,2941,2940,2939,2938,2935,2934,2933,2927,2926,2925,2903,2877,2876,2872,2820,2819,2817,2816,2813,2810,2807,2806,2804,2800,2798,2794,2789,2784,2783,2768,2766,2765,2734,2723,2722,2678,2676,2655,2652,2651,2646,2645,2644,2638,2637,2540,2538,2537,2536,2535,2529,2525,2522,2521,2520,2514,2489,2427,2426,2425,2424,2411,2405,2381,2380,2379,2378,2363,2305,2291,2204]) ).

thf(3931,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[3930,2174]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SEU189+2 : TPTP v8.1.0. Released v3.3.0.
% 0.03/0.12  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.13/0.33  % Computer : n009.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 600
% 0.13/0.33  % DateTime : Sun Jun 19 12:16:37 EDT 2022
% 0.13/0.33  % CPUTime  : 
% 0.18/0.40  ....
% 0.18/0.45  
% 0.18/0.45   No.of.Axioms: 170
% 0.18/0.45  
% 0.18/0.45   Length.of.Defs: 0
% 0.18/0.45  
% 0.18/0.45   Contains.Choice.Funs: false
% 0.18/0.49  ..........
% 0.18/0.52  (rf:2,axioms:130,ps:3,u:5,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:600,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:172,loop_count:0,foatp_calls:0,translation:fof_full)..........................................................................................................................................................................................................................................................................
% 1.66/1.97  
% 1.66/1.97  ********************************
% 1.66/1.97  *   All subproblems solved!    *
% 1.66/1.97  ********************************
% 1.66/1.97  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:2,axioms:131,ps:3,u:5,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:73,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:3930,loop_count:0,foatp_calls:1,translation:fof_full)
% 6.16/6.36  
% 6.16/6.36  %**** Beginning of derivation protocol ****
% 6.16/6.36  % SZS output start CNFRefutation
% See solution above
% 6.16/6.38  
% 6.16/6.38  %**** End of derivation protocol ****
% 6.16/6.38  %**** no. of clauses in derivation: 3891 ****
% 6.16/6.38  %**** clause counter: 3930 ****
% 6.16/6.38  
% 6.16/6.38  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:2,axioms:131,ps:3,u:5,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:73,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:3930,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------