TSTP Solution File: SEU187+2 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SEU187+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 : n016.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 12:07:50 EDT 2022

% Result   : Theorem 2.33s 2.57s
% Output   : CNFRefutation 6.32s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   26
%            Number of leaves      :  190
% Syntax   : Number of formulae    : 3365 (1626 unt;  70 typ;   0 def)
%            Number of atoms       : 23516 (8545 equ;   0 cnn)
%            Maximal formula atoms :   11 (   7 avg)
%            Number of connectives : 48735 (8826   ~;8295   |; 400   &;30976   @)
%                                         (  84 <=>; 154  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   16 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :  120 ( 120   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   73 (  70 usr;   7 con; 0-3 aty)
%            Number of variables   : 9381 (   0   ^9355   !;  26   ?;9381   :)

% 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_C,type,
    sK10_C: $i > $i > $i ).

thf(tp_sK11_SY272,type,
    sK11_SY272: $i > $i > $i ).

thf(tp_sK12_D,type,
    sK12_D: $i > $i > $i > $i ).

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

thf(tp_sK14_SY274,type,
    sK14_SY274: $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_SY276,type,
    sK18_SY276: $i > $i > $i ).

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

thf(tp_sK1_B,type,
    sK1_B: $i > $i ).

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

thf(tp_sK21_SY278,type,
    sK21_SY278: $i > $i > $i ).

thf(tp_sK22_D,type,
    sK22_D: $i > $i > $i > $i ).

thf(tp_sK23_C,type,
    sK23_C: $i > $i > $i ).

thf(tp_sK24_D,type,
    sK24_D: $i > $i > $i > $i ).

thf(tp_sK25_D,type,
    sK25_D: $i > $i > $i > $i ).

thf(tp_sK26_C,type,
    sK26_C: $i > $i > $i ).

thf(tp_sK27_C,type,
    sK27_C: $i > $i > $i ).

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

thf(tp_sK29_SY279,type,
    sK29_SY279: $i > $i > $i ).

thf(tp_sK2_SY267,type,
    sK2_SY267: $i > $i > $i ).

thf(tp_sK30_B,type,
    sK30_B: $i > $i ).

thf(tp_sK31_B,type,
    sK31_B: $i > $i ).

thf(tp_sK32_SY282,type,
    sK32_SY282: $i > $i ).

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

thf(tp_sK34_C,type,
    sK34_C: $i > $i > $i ).

thf(tp_sK35_B,type,
    sK35_B: $i > $i ).

thf(tp_sK36_C,type,
    sK36_C: $i > $i > $i ).

thf(tp_sK37_B,type,
    sK37_B: $i > $i ).

thf(tp_sK38_D,type,
    sK38_D: $i > $i > $i > $i ).

thf(tp_sK39_C,type,
    sK39_C: $i > $i > $i ).

thf(tp_sK3_C,type,
    sK3_C: $i > $i > $i ).

thf(tp_sK40_SY287,type,
    sK40_SY287: $i > $i > $i ).

thf(tp_sK4_A,type,
    sK4_A: $i ).

thf(tp_sK5_B,type,
    sK5_B: $i > $i ).

thf(tp_sK6_A,type,
    sK6_A: $i ).

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

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

thf(tp_sK9_A,type,
    sK9_A: $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 )
        & ( relation @ A ) )
     => ~ ( empty @ ( relation_rng @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc6_relat_1) ).

thf(33,axiom,
    ! [A: $i] :
      ( ( ~ ( empty @ A )
        & ( relation @ A ) )
     => ~ ( empty @ ( relation_dom @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc5_relat_1) ).

thf(34,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(35,axiom,
    ( ( empty @ empty_set )
    & ( relation @ empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc4_relat_1) ).

thf(36,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_xboole_0) ).

thf(37,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( unordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_subset_1) ).

thf(38,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_xboole_0) ).

thf(39,axiom,
    ! [A: $i] :
      ~ ( empty @ ( singleton @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_subset_1) ).

thf(40,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(41,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( ordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

thf(42,axiom,
    empty @ empty_set,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(43,axiom,
    ! [A: $i] :
      ~ ( empty @ ( powerset @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_subset_1) ).

thf(50,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(53,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( relation @ ( relation_inverse @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_relat_1) ).

thf(68,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(71,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(72,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(73,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] :
      ( ( 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(77,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(78,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(80,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(81,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(82,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(84,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(85,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(86,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(87,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(88,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(89,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(90,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(91,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(92,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d10_xboole_0) ).

thf(93,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(94,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(96,axiom,
    ! [A: $i] :
      ( ( empty @ A )
     => ( relation @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cc1_relat_1) ).

thf(98,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(99,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(100,axiom,
    ! [A: $i] :
      ( ( union @ ( powerset @ A ) )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t99_zfmisc_1) ).

thf(101,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t92_zfmisc_1) ).

thf(102,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(103,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(104,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_difference @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t83_xboole_1) ).

thf(105,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(106,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(107,axiom,
    ! [A: $i] :
      ( ( unordered_pair @ A @ A )
      = ( singleton @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t69_enumset1) ).

thf(108,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(109,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(110,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( subset @ A @ B )
        & ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(111,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(114,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(115,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(118,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(119,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(121,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(122,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(123,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(124,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(126,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(127,axiom,
    ! [A: $i] :
      ( ( subset @ A @ empty_set )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(128,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(129,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(130,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(131,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(132,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_zfmisc_1) ).

thf(133,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(134,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(135,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(137,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(139,axiom,
    ! [A: $i] : ( subset @ empty_set @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(140,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_intersection2 @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(141,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(142,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(143,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(144,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(145,axiom,
    ( ( powerset @ empty_set )
    = ( singleton @ empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_zfmisc_1) ).

thf(146,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(147,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(148,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(149,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(150,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_union2 @ A @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(151,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(152,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(155,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(157,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l50_zfmisc_1) ).

thf(158,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(159,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(160,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(161,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(162,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(163,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( in @ A @ B )
     => ( disjoint @ ( singleton @ A ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l28_zfmisc_1) ).

thf(164,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( disjoint @ ( singleton @ A ) @ B )
        & ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l25_zfmisc_1) ).

thf(165,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(166,axiom,
    ! [A: $i] :
      ( ( singleton @ A )
     != empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(167,conjecture,
    ( ( ( relation_dom @ empty_set )
      = empty_set )
    & ( ( relation_rng @ empty_set )
      = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_relat_1) ).

thf(168,negated_conjecture,
    ( ( ( ( relation_dom @ empty_set )
        = empty_set )
      & ( ( relation_rng @ empty_set )
        = empty_set ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[167]) ).

thf(169,plain,
    ( ( ( ( relation_dom @ empty_set )
        = empty_set )
      & ( ( relation_rng @ empty_set )
        = empty_set ) )
    = $false ),
    inference(unfold_def,[status(thm)],[168]) ).

thf(170,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(171,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( empty @ A )
            & ( A != B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(172,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(173,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ~ ( ( in @ A @ B )
            & ( element @ B @ ( powerset @ C ) )
            & ( empty @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(174,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(175,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ ( powerset @ B ) )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(176,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(177,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ B )
         => ( ( empty @ B )
            | ( in @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(178,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(179,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
         => ( disjoint @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(180,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(181,plain,
    ( ( ? [A: $i] :
          ~ ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[20]) ).

thf(182,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[21]) ).

thf(183,plain,
    ( ( ? [A: $i] :
          ( ~ ( empty @ A )
          & ( relation @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[22]) ).

thf(184,plain,
    ( ( ? [A: $i] : ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[23]) ).

thf(185,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
         => ? [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
              & ~ ( empty @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[24]) ).

thf(186,plain,
    ( ( ? [A: $i] :
          ( ( empty @ A )
          & ( relation @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[25]) ).

thf(187,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ( relation_inverse @ ( relation_inverse @ A ) )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[28]) ).

thf(188,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(189,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(190,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ~ ( empty @ A )
            & ~ ( empty @ B ) )
         => ~ ( empty @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(191,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(192,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( unordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[37]) ).

thf(193,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[38]) ).

thf(194,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(195,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( relation @ A )
            & ( relation @ B ) )
         => ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[40]) ).

thf(196,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(197,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(198,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( relation @ A )
            & ( relation @ B ) )
         => ( relation @ ( relation_composition @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(199,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( relation @ ( relation_inverse @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[53]) ).

thf(200,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[68]) ).

thf(201,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)],[72]) ).

thf(202,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(203,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)],[76]) ).

thf(204,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)],[77]) ).

thf(205,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)],[78]) ).

thf(206,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)],[80]) ).

thf(207,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)],[81]) ).

thf(208,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[82]) ).

thf(209,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)],[84]) ).

thf(210,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)],[85]) ).

thf(211,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)],[86]) ).

thf(212,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[87]) ).

thf(213,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[89]) ).

thf(214,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)],[91]) ).

thf(215,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[92]) ).

thf(216,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[93]) ).

thf(217,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[94]) ).

thf(218,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( relation @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[96]) ).

thf(219,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[98]) ).

thf(220,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[99]) ).

thf(221,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[100]) ).

thf(222,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[101]) ).

thf(223,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[102]) ).

thf(224,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)],[103]) ).

thf(225,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[104]) ).

thf(226,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[105]) ).

thf(227,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[106]) ).

thf(228,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[107]) ).

thf(229,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
            = A )
        <=> ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[108]) ).

thf(230,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[109]) ).

thf(231,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[110]) ).

thf(232,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ! [B: $i,C: $i] :
                ~ ( in @ ( ordered_pair @ B @ C ) @ A )
           => ( A = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[111]) ).

thf(233,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)],[114]) ).

thf(234,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[115]) ).

thf(235,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)],[118]) ).

thf(236,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[119]) ).

thf(237,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)],[121]) ).

thf(238,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[122]) ).

thf(239,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)],[123]) ).

thf(240,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)],[124]) ).

thf(241,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[126]) ).

thf(242,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)],[128]) ).

thf(243,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[130]) ).

thf(244,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)],[131]) ).

thf(245,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[132]) ).

thf(246,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[135]) ).

thf(247,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)],[137]) ).

thf(248,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[140]) ).

thf(249,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)],[141]) ).

thf(250,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[143]) ).

thf(251,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)],[144]) ).

thf(252,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[146]) ).

thf(253,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)],[147]) ).

thf(254,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[148]) ).

thf(255,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)],[149]) ).

thf(256,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[150]) ).

thf(257,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)],[151]) ).

thf(258,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)],[152]) ).

thf(259,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) )
         => ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[155]) ).

thf(260,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[157]) ).

thf(261,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)],[159]) ).

thf(262,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ! [C: $i] :
              ( ( in @ C @ B )
             => ( in @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[160]) ).

thf(263,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[162]) ).

thf(264,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[163]) ).

thf(265,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( disjoint @ ( singleton @ A ) @ B )
            & ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[164]) ).

thf(266,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[165]) ).

thf(267,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(268,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(269,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(270,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(271,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(272,plain,
    ( ( ! [A: $i] :
          ( ( ~ ( empty @ A )
            & ( relation @ A ) )
         => ~ ( empty @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[32]) ).

thf(273,plain,
    ( ( ! [A: $i] :
          ( ( ~ ( empty @ A )
            & ( relation @ A ) )
         => ~ ( empty @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[33]) ).

thf(274,plain,
    ( ( ( empty @ empty_set )
      & ( relation @ empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(275,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(276,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[71]) ).

thf(277,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[88]) ).

thf(278,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)],[90]) ).

thf(279,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[127]) ).

thf(280,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[129]) ).

thf(281,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[133]) ).

thf(282,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)],[134]) ).

thf(283,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[139]) ).

thf(284,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)],[142]) ).

thf(285,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[145]) ).

thf(286,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[158]) ).

thf(287,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[161]) ).

thf(288,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[166]) ).

thf(289,plain,
    ( ( ( relation_dom @ empty_set )
      = empty_set )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[169]) ).

thf(290,plain,
    ( ( ( relation_rng @ empty_set )
      = empty_set )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[169]) ).

thf(291,plain,
    ( ( ( ( relation_dom @ empty_set )
       != empty_set ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[289]) ).

thf(292,plain,
    ( ( ( ( relation_rng @ empty_set )
       != empty_set ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[290]) ).

thf(293,plain,
    ( ( ! [A: $i] :
          ( ! [SY265: $i] :
              ( ~ ( subset @ SY265 @ ( sK1_B @ A ) )
              | ( are_equipotent @ SY265 @ ( sK1_B @ A ) )
              | ( in @ SY265 @ ( sK1_B @ A ) ) )
          & ! [SY266: $i] :
              ( ( ! [SY271: $i] :
                    ( ~ ( subset @ SY271 @ SY266 )
                    | ( in @ SY271 @ ( sK2_SY267 @ SY266 @ A ) ) )
                & ( in @ ( sK2_SY267 @ SY266 @ A ) @ ( sK1_B @ A ) ) )
              | ~ ( in @ SY266 @ ( sK1_B @ A ) ) )
          & ! [SY269: $i,SY270: $i] :
              ( ~ ( in @ SY269 @ ( sK1_B @ A ) )
              | ~ ( subset @ SY270 @ SY269 )
              | ( in @ SY270 @ ( sK1_B @ A ) ) )
          & ( in @ A @ ( sK1_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[170]) ).

thf(294,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[171]) ).

thf(295,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[172]) ).

thf(296,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[173]) ).

thf(297,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[174]) ).

thf(298,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)],[175]) ).

thf(299,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK3_C @ B @ A ) @ A )
              | ~ ( in @ ( sK3_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK3_C @ B @ A ) @ A )
              | ( in @ ( sK3_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[176]) ).

thf(300,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[177]) ).

thf(301,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[178]) ).

thf(302,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[179]) ).

thf(303,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[180]) ).

thf(304,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[181]) ).

thf(305,plain,
    ( ( ! [A: $i] :
          ( ( element @ ( sK5_B @ A ) @ ( powerset @ A ) )
          & ( empty @ ( sK5_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[182]) ).

thf(306,plain,
    ( ( ~ ( empty @ sK6_A )
      & ( relation @ sK6_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[183]) ).

thf(307,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(extcnf_combined,[status(esa)],[184]) ).

thf(308,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ( ( element @ ( sK8_B @ A ) @ ( powerset @ A ) )
            & ~ ( empty @ ( sK8_B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[185]) ).

thf(309,plain,
    ( ( ( empty @ sK9_A )
      & ( relation @ sK9_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[186]) ).

thf(310,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_inverse @ ( relation_inverse @ A ) )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[187]) ).

thf(311,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[188]) ).

thf(312,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[189]) ).

thf(313,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( empty @ A )
          | ( empty @ B )
          | ~ ( empty @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[190]) ).

thf(314,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[191]) ).

thf(315,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[193]) ).

thf(316,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[195]) ).

thf(317,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( relation_composition @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[198]) ).

thf(318,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( relation @ ( relation_inverse @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[199]) ).

thf(319,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)],[200]) ).

thf(320,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ( ( ~ ( in @ ( ordered_pair @ ( sK10_C @ B @ A ) @ ( sK11_SY272 @ B @ A ) ) @ B )
                    | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ B @ A ) @ ( sK10_C @ B @ A ) ) @ A ) )
                  & ( ( in @ ( ordered_pair @ ( sK10_C @ B @ A ) @ ( sK11_SY272 @ B @ A ) ) @ B )
                    | ( in @ ( ordered_pair @ ( sK11_SY272 @ B @ A ) @ ( sK10_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)],[201]) ).

thf(321,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[202]) ).

thf(322,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY273: $i] :
                        ~ ( in @ ( ordered_pair @ SY273 @ ( sK13_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK13_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK14_SY274 @ B @ A ) @ ( sK13_C @ B @ A ) ) @ A )
                    | ( in @ ( sK13_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 @ ( sK12_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[203]) ).

thf(323,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)],[204]) ).

thf(324,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY275: $i] :
                  ( ~ ( in @ ( sK17_C @ B @ A ) @ SY275 )
                  | ~ ( in @ SY275 @ A ) )
              | ~ ( in @ ( sK17_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK17_C @ B @ A ) @ ( sK18_SY276 @ B @ A ) )
                & ( in @ ( sK18_SY276 @ 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)],[205]) ).

thf(325,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY277: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK20_C @ B @ A ) @ SY277 ) @ A )
                    | ~ ( in @ ( sK20_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK20_C @ B @ A ) @ ( sK21_SY278 @ B @ A ) ) @ A )
                    | ( in @ ( sK20_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 @ ( sK19_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[206]) ).

thf(326,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK22_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK22_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK22_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK22_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK22_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK22_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK22_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)],[207]) ).

thf(327,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK23_C @ B @ A ) @ A )
            & ~ ( in @ ( sK23_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)],[208]) ).

thf(328,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK24_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK24_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK24_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK24_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK24_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK24_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK24_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)],[209]) ).

thf(329,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK25_D @ C @ B @ A ) @ C )
                  | ( ( sK25_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK25_D @ C @ B @ A ) @ C )
                  | ( ( sK25_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK25_D @ C @ B @ A ) @ C )
                  | ( ( sK25_D @ C @ B @ A )
                    = A )
                  | ( ( sK25_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)],[210]) ).

thf(330,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)],[211]) ).

thf(331,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK26_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK26_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK26_C @ B @ A ) @ B )
              | ( subset @ ( sK26_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)],[212]) ).

thf(332,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK27_C @ B @ A )
               != A )
              | ~ ( in @ ( sK27_C @ B @ A ) @ B ) )
            & ( ( ( sK27_C @ B @ A )
                = A )
              | ( in @ ( sK27_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)],[213]) ).

thf(333,plain,
    ( ( ! [A: $i] :
          ( ( ! [SY280: $i,SY281: $i] :
                ( ( sK30_B @ A )
               != ( ordered_pair @ SY280 @ SY281 ) )
            & ( in @ ( sK30_B @ A ) @ A ) )
          | ( relation @ A ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ( B
                = ( ordered_pair @ ( sK28_C @ B @ A ) @ ( sK29_SY279 @ B @ A ) ) )
              | ~ ( in @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[214]) ).

thf(334,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)],[215]) ).

thf(335,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[218]) ).

thf(336,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[219]) ).

thf(337,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[220]) ).

thf(338,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[222]) ).

thf(339,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[223]) ).

thf(340,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)],[224]) ).

thf(341,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)],[225]) ).

thf(342,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[227]) ).

thf(343,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)],[229]) ).

thf(344,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[230]) ).

thf(345,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[231]) ).

thf(346,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( in @ ( ordered_pair @ ( sK31_B @ A ) @ ( sK32_SY282 @ A ) ) @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[232]) ).

thf(347,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK33_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)],[233]) ).

thf(348,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)],[235]) ).

thf(349,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[236]) ).

thf(350,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)],[237]) ).

thf(351,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[238]) ).

thf(352,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)],[239]) ).

thf(353,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)],[240]) ).

thf(354,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK34_C @ B @ A ) @ A )
            & ( in @ ( sK34_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)],[242]) ).

thf(355,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)],[244]) ).

thf(356,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)],[245]) ).

thf(357,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)],[247]) ).

thf(358,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[248]) ).

thf(359,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)],[249]) ).

thf(360,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[250]) ).

thf(361,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)],[251]) ).

thf(362,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[252]) ).

thf(363,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)],[253]) ).

thf(364,plain,
    ( ( ! [A: $i] :
          ( ! [SY283: $i] :
              ( ~ ( subset @ SY283 @ ( sK35_B @ A ) )
              | ( are_equipotent @ SY283 @ ( sK35_B @ A ) )
              | ( in @ SY283 @ ( sK35_B @ A ) ) )
          & ! [SY284: $i] :
              ( ~ ( in @ SY284 @ ( sK35_B @ A ) )
              | ( in @ ( powerset @ SY284 ) @ ( sK35_B @ A ) ) )
          & ! [SY285: $i,SY286: $i] :
              ( ~ ( in @ SY285 @ ( sK35_B @ A ) )
              | ~ ( subset @ SY286 @ SY285 )
              | ( in @ SY286 @ ( sK35_B @ A ) ) )
          & ( in @ A @ ( sK35_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[255]) ).

thf(365,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[256]) ).

thf(366,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)],[257]) ).

thf(367,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)],[258]) ).

thf(368,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK36_C @ B @ A ) @ A )
            & ~ ( in @ ( sK36_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[259]) ).

thf(369,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[260]) ).

thf(370,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)],[261]) ).

thf(371,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[262]) ).

thf(372,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)],[263]) ).

thf(373,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[264]) ).

thf(374,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[265]) ).

thf(375,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[266]) ).

thf(376,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[267]) ).

thf(377,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[272]) ).

thf(378,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[273]) ).

thf(379,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)],[276]) ).

thf(380,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK37_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[277]) ).

thf(381,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK40_SY287 @ B @ A ) @ A )
                    & ~ ( in @ ( sK39_C @ B @ A ) @ ( sK40_SY287 @ B @ A ) ) )
                  | ~ ( in @ ( sK39_C @ B @ A ) @ B ) )
                & ( ! [SY288: $i] :
                      ( ~ ( in @ SY288 @ A )
                      | ( in @ ( sK39_C @ B @ A ) @ SY288 ) )
                  | ( in @ ( sK39_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK38_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK38_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)],[278]) ).

thf(382,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[279]) ).

thf(383,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)],[280]) ).

thf(384,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)],[281]) ).

thf(385,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)],[282]) ).

thf(386,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)],[284]) ).

thf(387,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)],[286]) ).

thf(388,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)],[287]) ).

thf(389,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[288]) ).

thf(390,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[389]) ).

thf(391,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)],[388]) ).

thf(392,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)],[387]) ).

thf(393,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[285]) ).

thf(394,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)],[386]) ).

thf(395,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[283]) ).

thf(396,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)],[385]) ).

thf(397,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)],[384]) ).

thf(398,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)],[383]) ).

thf(399,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[382]) ).

thf(400,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK40_SY287 @ B @ A ) @ A )
                    & ~ ( in @ ( sK39_C @ B @ A ) @ ( sK40_SY287 @ B @ A ) ) )
                  | ~ ( in @ ( sK39_C @ B @ A ) @ B ) )
                & ( ! [SY288: $i] :
                      ( ~ ( in @ SY288 @ A )
                      | ( in @ ( sK39_C @ B @ A ) @ SY288 ) )
                  | ( in @ ( sK39_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK38_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK38_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)],[381]) ).

thf(401,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK37_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[380]) ).

thf(402,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)],[379]) ).

thf(403,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[275]) ).

thf(404,plain,
    ( ( ( empty @ empty_set )
      & ( relation @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[274]) ).

thf(405,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[378]) ).

thf(406,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[377]) ).

thf(407,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[271]) ).

thf(408,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[270]) ).

thf(409,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[269]) ).

thf(410,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[268]) ).

thf(411,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[376]) ).

thf(412,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[375]) ).

thf(413,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[374]) ).

thf(414,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[373]) ).

thf(415,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)],[372]) ).

thf(416,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[371]) ).

thf(417,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)],[370]) ).

thf(418,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[369]) ).

thf(419,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK36_C @ B @ A ) @ A )
            & ~ ( in @ ( sK36_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[368]) ).

thf(420,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)],[367]) ).

thf(421,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)],[366]) ).

thf(422,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[365]) ).

thf(423,plain,
    ( ( ! [A: $i] :
          ( ! [SY283: $i] :
              ( ~ ( subset @ SY283 @ ( sK35_B @ A ) )
              | ( are_equipotent @ SY283 @ ( sK35_B @ A ) )
              | ( in @ SY283 @ ( sK35_B @ A ) ) )
          & ! [SY284: $i] :
              ( ~ ( in @ SY284 @ ( sK35_B @ A ) )
              | ( in @ ( powerset @ SY284 ) @ ( sK35_B @ A ) ) )
          & ! [SY285: $i,SY286: $i] :
              ( ~ ( in @ SY285 @ ( sK35_B @ A ) )
              | ~ ( subset @ SY286 @ SY285 )
              | ( in @ SY286 @ ( sK35_B @ A ) ) )
          & ( in @ A @ ( sK35_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[364]) ).

thf(424,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[254]) ).

thf(425,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[363]) ).

thf(426,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[362]) ).

thf(427,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)],[361]) ).

thf(428,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[360]) ).

thf(429,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[359]) ).

thf(430,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[358]) ).

thf(431,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[357]) ).

thf(432,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[246]) ).

thf(433,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)],[356]) ).

thf(434,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)],[355]) ).

thf(435,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[243]) ).

thf(436,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK34_C @ B @ A ) @ A )
            & ( in @ ( sK34_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[354]) ).

thf(437,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[241]) ).

thf(438,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[353]) ).

thf(439,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[352]) ).

thf(440,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[351]) ).

thf(441,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)],[350]) ).

thf(442,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[349]) ).

thf(443,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)],[348]) ).

thf(444,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[234]) ).

thf(445,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK33_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)],[347]) ).

thf(446,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( in @ ( ordered_pair @ ( sK31_B @ A ) @ ( sK32_SY282 @ A ) ) @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[346]) ).

thf(447,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[345]) ).

thf(448,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[344]) ).

thf(449,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)],[343]) ).

thf(450,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[228]) ).

thf(451,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[342]) ).

thf(452,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[226]) ).

thf(453,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)],[341]) ).

thf(454,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[340]) ).

thf(455,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[339]) ).

thf(456,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[338]) ).

thf(457,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[221]) ).

thf(458,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[337]) ).

thf(459,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[336]) ).

thf(460,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[335]) ).

thf(461,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[217]) ).

thf(462,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[216]) ).

thf(463,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)],[334]) ).

thf(464,plain,
    ( ( ! [A: $i] :
          ( ( ! [SY280: $i,SY281: $i] :
                ( ( sK30_B @ A )
               != ( ordered_pair @ SY280 @ SY281 ) )
            & ( in @ ( sK30_B @ A ) @ A ) )
          | ( relation @ A ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ( B
                = ( ordered_pair @ ( sK28_C @ B @ A ) @ ( sK29_SY279 @ B @ A ) ) )
              | ~ ( in @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[333]) ).

thf(465,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK27_C @ B @ A )
               != A )
              | ~ ( in @ ( sK27_C @ B @ A ) @ B ) )
            & ( ( ( sK27_C @ B @ A )
                = A )
              | ( in @ ( sK27_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)],[332]) ).

thf(466,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK26_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK26_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK26_C @ B @ A ) @ B )
              | ( subset @ ( sK26_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)],[331]) ).

thf(467,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)],[330]) ).

thf(468,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK25_D @ C @ B @ A ) @ C )
                  | ( ( sK25_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK25_D @ C @ B @ A ) @ C )
                  | ( ( sK25_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK25_D @ C @ B @ A ) @ C )
                  | ( ( sK25_D @ C @ B @ A )
                    = A )
                  | ( ( sK25_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)],[329]) ).

thf(469,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK24_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK24_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK24_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK24_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK24_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK24_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK24_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)],[328]) ).

thf(470,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK23_C @ B @ A ) @ A )
            & ~ ( in @ ( sK23_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)],[327]) ).

thf(471,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK22_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK22_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK22_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK22_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK22_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK22_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK22_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)],[326]) ).

thf(472,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY277: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK20_C @ B @ A ) @ SY277 ) @ A )
                    | ~ ( in @ ( sK20_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK20_C @ B @ A ) @ ( sK21_SY278 @ B @ A ) ) @ A )
                    | ( in @ ( sK20_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 @ ( sK19_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[325]) ).

thf(473,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY275: $i] :
                  ( ~ ( in @ ( sK17_C @ B @ A ) @ SY275 )
                  | ~ ( in @ SY275 @ A ) )
              | ~ ( in @ ( sK17_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK17_C @ B @ A ) @ ( sK18_SY276 @ B @ A ) )
                & ( in @ ( sK18_SY276 @ 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)],[324]) ).

thf(474,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)],[323]) ).

thf(475,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY273: $i] :
                        ~ ( in @ ( ordered_pair @ SY273 @ ( sK13_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK13_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK14_SY274 @ B @ A ) @ ( sK13_C @ B @ A ) ) @ A )
                    | ( in @ ( sK13_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 @ ( sK12_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[322]) ).

thf(476,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[321]) ).

thf(477,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ( ( ~ ( in @ ( ordered_pair @ ( sK10_C @ B @ A ) @ ( sK11_SY272 @ B @ A ) ) @ B )
                    | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ B @ A ) @ ( sK10_C @ B @ A ) ) @ A ) )
                  & ( ( in @ ( ordered_pair @ ( sK10_C @ B @ A ) @ ( sK11_SY272 @ B @ A ) ) @ B )
                    | ( in @ ( ordered_pair @ ( sK11_SY272 @ B @ A ) @ ( sK10_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)],[320]) ).

thf(478,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)],[319]) ).

thf(479,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( relation @ ( relation_inverse @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[318]) ).

thf(480,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( relation_composition @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[317]) ).

thf(481,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[197]) ).

thf(482,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[196]) ).

thf(483,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[316]) ).

thf(484,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[194]) ).

thf(485,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[315]) ).

thf(486,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( unordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[192]) ).

thf(487,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[314]) ).

thf(488,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( empty @ A )
          | ( empty @ B )
          | ~ ( empty @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[313]) ).

thf(489,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[312]) ).

thf(490,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[311]) ).

thf(491,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_inverse @ ( relation_inverse @ A ) )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[310]) ).

thf(492,plain,
    ( ( ( empty @ sK9_A )
      & ( relation @ sK9_A ) )
    = $true ),
    inference(copy,[status(thm)],[309]) ).

thf(493,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ( ( element @ ( sK8_B @ A ) @ ( powerset @ A ) )
            & ~ ( empty @ ( sK8_B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[308]) ).

thf(494,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(copy,[status(thm)],[307]) ).

thf(495,plain,
    ( ( ~ ( empty @ sK6_A )
      & ( relation @ sK6_A ) )
    = $true ),
    inference(copy,[status(thm)],[306]) ).

thf(496,plain,
    ( ( ! [A: $i] :
          ( ( element @ ( sK5_B @ A ) @ ( powerset @ A ) )
          & ( empty @ ( sK5_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[305]) ).

thf(497,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[304]) ).

thf(498,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[303]) ).

thf(499,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[302]) ).

thf(500,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[301]) ).

thf(501,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[300]) ).

thf(502,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK3_C @ B @ A ) @ A )
              | ~ ( in @ ( sK3_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK3_C @ B @ A ) @ A )
              | ( in @ ( sK3_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[299]) ).

thf(503,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)],[298]) ).

thf(504,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[297]) ).

thf(505,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[296]) ).

thf(506,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[295]) ).

thf(507,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[294]) ).

thf(508,plain,
    ( ( ! [A: $i] :
          ( ! [SY265: $i] :
              ( ~ ( subset @ SY265 @ ( sK1_B @ A ) )
              | ( are_equipotent @ SY265 @ ( sK1_B @ A ) )
              | ( in @ SY265 @ ( sK1_B @ A ) ) )
          & ! [SY266: $i] :
              ( ( ! [SY271: $i] :
                    ( ~ ( subset @ SY271 @ SY266 )
                    | ( in @ SY271 @ ( sK2_SY267 @ SY266 @ A ) ) )
                & ( in @ ( sK2_SY267 @ SY266 @ A ) @ ( sK1_B @ A ) ) )
              | ~ ( in @ SY266 @ ( sK1_B @ A ) ) )
          & ! [SY269: $i,SY270: $i] :
              ( ~ ( in @ SY269 @ ( sK1_B @ A ) )
              | ~ ( subset @ SY270 @ SY269 )
              | ( in @ SY270 @ ( sK1_B @ A ) ) )
          & ( in @ A @ ( sK1_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[293]) ).

thf(509,plain,
    ( ( ( ( relation_dom @ empty_set )
       != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[291]) ).

thf(510,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK24_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)],[469]) ).

thf(511,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK25_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK25_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK25_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK25_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK25_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK25_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)],[468]) ).

thf(512,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK22_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)],[471]) ).

thf(513,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK20_C @ SX1 @ SX0 ) @ SX2 ) @ SX0 )
                            | ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SX1 @ SX0 ) @ ( sK21_SY278 @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK20_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 @ ( sK19_D @ SX2 @ SX1 @ SX0 ) ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[472]) ).

thf(514,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)],[467]) ).

thf(515,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK37_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[401]) ).

thf(516,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK26_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)],[466]) ).

thf(517,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK33_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)],[445]) ).

thf(518,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_SY276 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK18_SY276 @ 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)],[473]) ).

thf(519,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)],[396]) ).

thf(520,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ~ ( ~ ( element @ ( sK8_B @ SX0 ) @ ( powerset @ SX0 ) )
              | ~ ~ ( empty @ ( sK8_B @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[493]) ).

thf(521,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK34_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)],[436]) ).

thf(522,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)],[397]) ).

thf(523,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)],[394]) ).

thf(524,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK35_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK35_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK35_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( in @ SX1 @ ( sK35_B @ SX0 ) )
                        | ( in @ ( powerset @ SX1 ) @ ( sK35_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK35_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK35_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK35_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[423]) ).

thf(525,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)],[503]) ).

thf(526,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)],[463]) ).

thf(527,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)],[402]) ).

thf(528,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK36_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK36_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[419]) ).

thf(529,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)],[474]) ).

thf(530,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ SX2 @ ( sK13_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SX1 @ SX0 ) @ ( sK13_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK13_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 @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[475]) ).

thf(531,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[502]) ).

thf(532,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                                  | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                              | ~ ( ! [SX2: $i] :
                                      ( ~ ( in @ SX2 @ SX0 )
                                      | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                                  | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ~ ( ~ ! [SX2: $i] :
                                    ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                        | ~ ~ ( in @ SX2 @ ( sK38_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)],[400]) ).

thf(533,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)],[478]) ).

thf(534,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY272 @ SX1 @ SX0 ) ) @ SX1 )
                            | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SX1 @ SX0 ) @ ( sK10_C @ SX1 @ SX0 ) ) @ SX0 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY272 @ SX1 @ SX0 ) ) @ SX1 )
                            | ( in @ ( ordered_pair @ ( sK11_SY272 @ SX1 @ SX0 ) @ ( sK10_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)],[477]) ).

thf(535,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK1_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK1_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK1_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( ~ ! [SX2: $i] :
                                  ( ~ ( subset @ SX2 @ SX1 )
                                  | ( in @ SX2 @ ( sK2_SY267 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK2_SY267 @ SX1 @ SX0 ) @ ( sK1_B @ SX0 ) ) )
                        | ~ ( in @ SX1 @ ( sK1_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK1_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK1_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK1_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[508]) ).

thf(536,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)],[453]) ).

thf(537,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ( element @ ( sK5_B @ SX0 ) @ ( powerset @ SX0 ) )
            | ~ ( empty @ ( sK5_B @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[496]) ).

thf(538,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                          ( ( sK30_B @ SX0 )
                         != ( ordered_pair @ SX1 @ SX2 ) )
                    | ~ ( in @ ( sK30_B @ SX0 ) @ SX0 ) )
                | ( relation @ SX0 ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ! [SX1: $i] :
                    ( ( SX1
                      = ( ordered_pair @ ( sK28_C @ SX1 @ SX0 ) @ ( sK29_SY279 @ SX1 @ SX0 ) ) )
                    | ~ ( in @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[464]) ).

thf(539,plain,
    ( ( ~ ( ~ ~ ( empty @ sK6_A )
          | ~ ( relation @ sK6_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[495]) ).

thf(540,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)],[420]) ).

thf(541,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)],[415]) ).

thf(542,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK23_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)],[470]) ).

thf(543,plain,
    ( ( ~ ( ~ ( empty @ sK9_A )
          | ~ ( relation @ sK9_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[492]) ).

thf(544,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)],[398]) ).

thf(545,plain,
    ( ( ~ ( ~ ( empty @ empty_set )
          | ~ ( relation @ empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[404]) ).

thf(546,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)],[434]) ).

thf(547,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)],[391]) ).

thf(548,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)],[392]) ).

thf(549,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)],[433]) ).

thf(550,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)],[449]) ).

thf(551,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK27_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK27_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK27_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)],[465]) ).

thf(552,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)],[427]) ).

thf(553,plain,
    ! [SV1: $i] :
      ( ( ( ( singleton @ SV1 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[390]) ).

thf(554,plain,
    ! [SV2: $i] :
      ( ( subset @ empty_set @ SV2 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[395]) ).

thf(555,plain,
    ! [SV3: $i] :
      ( ( ~ ( subset @ SV3 @ empty_set )
        | ( SV3 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[399]) ).

thf(556,plain,
    ! [SV4: $i] :
      ( ( ( empty @ SV4 )
        | ~ ( relation @ SV4 )
        | ~ ( empty @ ( relation_dom @ SV4 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[405]) ).

thf(557,plain,
    ! [SV5: $i] :
      ( ( ( empty @ SV5 )
        | ~ ( relation @ SV5 )
        | ~ ( empty @ ( relation_rng @ SV5 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[406]) ).

thf(558,plain,
    ! [SV6: $i] :
      ( ( ( set_union2 @ SV6 @ empty_set )
        = SV6 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[407]) ).

thf(559,plain,
    ! [SV7: $i] :
      ( ( ( set_intersection2 @ SV7 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[408]) ).

thf(560,plain,
    ! [SV8: $i] :
      ( ( ( set_difference @ SV8 @ empty_set )
        = SV8 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[409]) ).

thf(561,plain,
    ! [SV9: $i] :
      ( ( ( set_difference @ empty_set @ SV9 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[410]) ).

thf(562,plain,
    ! [SV10: $i] :
      ( ( ~ ( empty @ SV10 )
        | ( SV10 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[411]) ).

thf(563,plain,
    ! [SV11: $i] :
      ( ( ! [SY289: $i] :
            ( ~ ( in @ SV11 @ SY289 )
            | ( ( set_union2 @ ( singleton @ SV11 ) @ SY289 )
              = SY289 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[412]) ).

thf(564,plain,
    ! [SV12: $i] :
      ( ( ! [SY290: $i] :
            ( ~ ( disjoint @ ( singleton @ SV12 ) @ SY290 )
            | ~ ( in @ SV12 @ SY290 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[413]) ).

thf(565,plain,
    ! [SV13: $i] :
      ( ( ! [SY291: $i] :
            ( ( in @ SV13 @ SY291 )
            | ( disjoint @ ( singleton @ SV13 ) @ SY291 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[414]) ).

thf(566,plain,
    ! [SV14: $i] :
      ( ( ! [SY292: $i] :
            ( ~ ( element @ SY292 @ ( powerset @ SV14 ) )
            | ! [SY293: $i] :
                ( ~ ( in @ SY293 @ SY292 )
                | ( in @ SY293 @ SV14 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[416]) ).

thf(567,plain,
    ! [SV15: $i] :
      ( ( ! [SY294: $i] :
            ( ~ ( subset @ SV15 @ SY294 )
            | ! [SY295: $i] :
                ( ( in @ SY295 @ SV15 )
                | ( subset @ SV15 @ ( set_difference @ SY294 @ ( singleton @ SY295 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[417]) ).

thf(568,plain,
    ! [SV16: $i] :
      ( ( ! [SY296: $i] :
            ( ~ ( in @ SV16 @ SY296 )
            | ( subset @ SV16 @ ( union @ SY296 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[418]) ).

thf(569,plain,
    ! [SV17: $i] :
      ( ( ! [SY297: $i,SY298: $i,SY299: $i] :
            ( ~ ( subset @ SV17 @ SY297 )
            | ~ ( subset @ SY298 @ SY299 )
            | ( subset @ ( cartesian_product2 @ SV17 @ SY298 ) @ ( cartesian_product2 @ SY297 @ SY299 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[421]) ).

thf(570,plain,
    ! [SV18: $i] :
      ( ( ! [SY300: $i] :
            ( ~ ( subset @ SV18 @ SY300 )
            | ( ( set_union2 @ SV18 @ SY300 )
              = SY300 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[422]) ).

thf(571,plain,
    ! [SV19: $i] :
      ( ( ! [SY301: $i] : ( subset @ ( set_intersection2 @ SV19 @ SY301 ) @ SV19 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[424]) ).

thf(572,plain,
    ! [SV20: $i] :
      ( ( ! [SY302: $i,SY303: $i] :
            ( ~ ( subset @ SV20 @ SY302 )
            | ~ ( subset @ SV20 @ SY303 )
            | ( subset @ SV20 @ ( set_intersection2 @ SY302 @ SY303 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[425]) ).

thf(573,plain,
    ! [SV21: $i] :
      ( ( ! [SY304: $i,SY305: $i] :
            ( ~ ( subset @ SV21 @ SY304 )
            | ~ ( subset @ SY304 @ SY305 )
            | ( subset @ SV21 @ SY305 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[426]) ).

thf(574,plain,
    ! [SV22: $i] :
      ( ( ~ ( relation @ SV22 )
        | ( subset @ SV22 @ ( cartesian_product2 @ ( relation_dom @ SV22 ) @ ( relation_rng @ SV22 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[428]) ).

thf(575,plain,
    ! [SV23: $i] :
      ( ( ! [SY306: $i] :
            ( ~ ( subset @ SV23 @ SY306 )
            | ! [SY307: $i] : ( subset @ ( set_intersection2 @ SV23 @ SY307 ) @ ( set_intersection2 @ SY306 @ SY307 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[429]) ).

thf(576,plain,
    ! [SV24: $i] :
      ( ( ! [SY308: $i] :
            ( ~ ( subset @ SV24 @ SY308 )
            | ( ( set_intersection2 @ SV24 @ SY308 )
              = SV24 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[430]) ).

thf(577,plain,
    ! [SV25: $i] :
      ( ( ! [SY309: $i] :
            ( ~ ( subset @ SV25 @ SY309 )
            | ! [SY310: $i] : ( subset @ ( set_difference @ SV25 @ SY310 ) @ ( set_difference @ SY309 @ SY310 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[431]) ).

thf(578,plain,
    ! [SV26: $i] :
      ( ( ! [SY311: $i] : ( subset @ ( set_difference @ SV26 @ SY311 ) @ SV26 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[432]) ).

thf(579,plain,
    ! [SV27: $i] :
      ( ( ! [SY312: $i] :
            ( ( set_union2 @ SV27 @ ( set_difference @ SY312 @ SV27 ) )
            = ( set_union2 @ SV27 @ SY312 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[435]) ).

thf(580,plain,
    ! [SV28: $i] :
      ( ( ! [SY313: $i] :
            ( ( set_difference @ ( set_union2 @ SV28 @ SY313 ) @ SY313 )
            = ( set_difference @ SV28 @ SY313 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[437]) ).

thf(581,plain,
    ! [SV29: $i] :
      ( ( ~ ( relation @ SV29 )
        | ! [SY314: $i] :
            ( ~ ( relation @ SY314 )
            | ( subset @ ( relation_dom @ ( relation_composition @ SV29 @ SY314 ) ) @ ( relation_dom @ SV29 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[438]) ).

thf(582,plain,
    ! [SV30: $i] :
      ( ( ~ ( relation @ SV30 )
        | ! [SY315: $i] :
            ( ~ ( relation @ SY315 )
            | ( subset @ ( relation_rng @ ( relation_composition @ SV30 @ SY315 ) ) @ ( relation_rng @ SY315 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[439]) ).

thf(583,plain,
    ! [SV31: $i] :
      ( ( ! [SY316: $i] :
            ( ~ ( subset @ SV31 @ SY316 )
            | ( SY316
              = ( set_union2 @ SV31 @ ( set_difference @ SY316 @ SV31 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[440]) ).

thf(584,plain,
    ! [SV32: $i] :
      ( ( ~ ( relation @ SV32 )
        | ! [SY317: $i] :
            ( ~ ( relation @ SY317 )
            | ~ ( subset @ ( relation_rng @ SV32 ) @ ( relation_dom @ SY317 ) )
            | ( ( relation_dom @ ( relation_composition @ SV32 @ SY317 ) )
              = ( relation_dom @ SV32 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[441]) ).

thf(585,plain,
    ! [SV33: $i] :
      ( ( ! [SY318: $i] :
            ( ~ ( in @ SV33 @ SY318 )
            | ( ( set_union2 @ ( singleton @ SV33 ) @ SY318 )
              = SY318 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[442]) ).

thf(586,plain,
    ! [SV34: $i] :
      ( ( ~ ( relation @ SV34 )
        | ! [SY319: $i] :
            ( ~ ( relation @ SY319 )
            | ~ ( subset @ ( relation_dom @ SV34 ) @ ( relation_rng @ SY319 ) )
            | ( ( relation_rng @ ( relation_composition @ SY319 @ SV34 ) )
              = ( relation_rng @ SV34 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[443]) ).

thf(587,plain,
    ! [SV35: $i] :
      ( ( ! [SY320: $i] :
            ( ( set_difference @ SV35 @ ( set_difference @ SV35 @ SY320 ) )
            = ( set_intersection2 @ SV35 @ SY320 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[444]) ).

thf(588,plain,
    ! [SV36: $i] :
      ( ( ~ ( relation @ SV36 )
        | ( in @ ( ordered_pair @ ( sK31_B @ SV36 ) @ ( sK32_SY282 @ SV36 ) ) @ SV36 )
        | ( SV36 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[446]) ).

thf(589,plain,
    ! [SV37: $i] :
      ( ( ! [SY321: $i] :
            ( ~ ( proper_subset @ SY321 @ SV37 )
            | ~ ( subset @ SV37 @ SY321 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[447]) ).

thf(590,plain,
    ! [SV38: $i] :
      ( ( ! [SY322: $i,SY323: $i] :
            ( ~ ( disjoint @ SY322 @ SY323 )
            | ~ ( subset @ SV38 @ SY322 )
            | ( disjoint @ SV38 @ SY323 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[448]) ).

thf(591,plain,
    ! [SV39: $i] :
      ( ( ( unordered_pair @ SV39 @ SV39 )
        = ( singleton @ SV39 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[450]) ).

thf(592,plain,
    ! [SV40: $i] :
      ( ( ! [SY324: $i] :
            ( ~ ( subset @ ( singleton @ SV40 ) @ ( singleton @ SY324 ) )
            | ( SV40 = SY324 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[451]) ).

thf(593,plain,
    ! [SV41: $i] :
      ( ( ! [SY325: $i] : ( subset @ SV41 @ ( set_union2 @ SV41 @ SY325 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[452]) ).

thf(594,plain,
    ! [SV42: $i] :
      ( ( ! [SY326: $i,SY327: $i] :
            ( ~ ( subset @ SV42 @ SY326 )
            | ~ ( subset @ SY327 @ SY326 )
            | ( subset @ ( set_union2 @ SV42 @ SY327 ) @ SY326 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[454]) ).

thf(595,plain,
    ! [SV43: $i] :
      ( ( ! [SY328: $i] :
            ( ! [SY329: $i] :
                ( ( singleton @ SV43 )
               != ( unordered_pair @ SY328 @ SY329 ) )
            | ( SV43 = SY328 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[455]) ).

thf(596,plain,
    ! [SV44: $i] :
      ( ( ! [SY330: $i] :
            ( ~ ( in @ SV44 @ SY330 )
            | ( subset @ SV44 @ ( union @ SY330 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[456]) ).

thf(597,plain,
    ! [SV45: $i] :
      ( ( ( union @ ( powerset @ SV45 ) )
        = SV45 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[457]) ).

thf(598,plain,
    ! [SV46: $i] :
      ( ( ! [SY331: $i,SY332: $i] :
            ( ( ( singleton @ SV46 )
             != ( unordered_pair @ SY331 @ SY332 ) )
            | ( SY331 = SY332 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[458]) ).

thf(599,plain,
    ! [SV47: $i] :
      ( ( ! [SY333: $i] :
            ( ~ ( in @ SV47 @ SY333 )
            | ~ ( in @ SY333 @ SV47 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[459]) ).

thf(600,plain,
    ! [SV48: $i] :
      ( ( ~ ( empty @ SV48 )
        | ( relation @ SV48 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[460]) ).

thf(601,plain,
    ! [SV49: $i] :
      ( ( ! [SY334: $i] :
            ( ( set_union2 @ SV49 @ SY334 )
            = ( set_union2 @ SY334 @ SV49 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[461]) ).

thf(602,plain,
    ! [SV50: $i] :
      ( ( ! [SY335: $i] :
            ( ( set_intersection2 @ SV50 @ SY335 )
            = ( set_intersection2 @ SY335 @ SV50 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[462]) ).

thf(603,plain,
    ! [SV51: $i] :
      ( ( ~ ( relation @ SV51 )
        | ( ( relation_field @ SV51 )
          = ( set_union2 @ ( relation_dom @ SV51 ) @ ( relation_rng @ SV51 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[476]) ).

thf(604,plain,
    ! [SV52: $i] :
      ( ( ~ ( relation @ SV52 )
        | ( relation @ ( relation_inverse @ SV52 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[479]) ).

thf(605,plain,
    ! [SV53: $i] :
      ( ( ! [SY336: $i] :
            ( ~ ( relation @ SV53 )
            | ~ ( relation @ SY336 )
            | ( relation @ ( relation_composition @ SV53 @ SY336 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[480]) ).

thf(606,plain,
    ! [SV54: $i] :
      ( ( ~ ( empty @ ( powerset @ SV54 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[481]) ).

thf(607,plain,
    ! [SV55: $i] :
      ( ( ! [SY337: $i] :
            ~ ( empty @ ( ordered_pair @ SV55 @ SY337 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[482]) ).

thf(608,plain,
    ! [SV56: $i] :
      ( ( ! [SY338: $i] :
            ( ~ ( relation @ SV56 )
            | ~ ( relation @ SY338 )
            | ( relation @ ( set_union2 @ SV56 @ SY338 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[483]) ).

thf(609,plain,
    ! [SV57: $i] :
      ( ( ~ ( empty @ ( singleton @ SV57 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[484]) ).

thf(610,plain,
    ! [SV58: $i] :
      ( ( ( empty @ SV58 )
        | ! [SY339: $i] :
            ~ ( empty @ ( set_union2 @ SV58 @ SY339 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[485]) ).

thf(611,plain,
    ! [SV59: $i] :
      ( ( ! [SY340: $i] :
            ~ ( empty @ ( unordered_pair @ SV59 @ SY340 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[486]) ).

thf(612,plain,
    ! [SV60: $i] :
      ( ( ( empty @ SV60 )
        | ! [SY341: $i] :
            ~ ( empty @ ( set_union2 @ SY341 @ SV60 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[487]) ).

thf(613,plain,
    ! [SV61: $i] :
      ( ( ! [SY342: $i] :
            ( ( empty @ SV61 )
            | ( empty @ SY342 )
            | ~ ( empty @ ( cartesian_product2 @ SV61 @ SY342 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[488]) ).

thf(614,plain,
    ! [SV62: $i] :
      ( ( ( set_union2 @ SV62 @ SV62 )
        = SV62 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[489]) ).

thf(615,plain,
    ! [SV63: $i] :
      ( ( ( set_intersection2 @ SV63 @ SV63 )
        = SV63 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[490]) ).

thf(616,plain,
    ! [SV64: $i] :
      ( ( ~ ( relation @ SV64 )
        | ( ( relation_inverse @ ( relation_inverse @ SV64 ) )
          = SV64 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[491]) ).

thf(617,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[497]) ).

thf(618,plain,
    ! [SV65: $i] :
      ( ( subset @ SV65 @ SV65 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[498]) ).

thf(619,plain,
    ! [SV66: $i] :
      ( ( ! [SY343: $i] :
            ( ~ ( disjoint @ SV66 @ SY343 )
            | ( disjoint @ SY343 @ SV66 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[499]) ).

thf(620,plain,
    ! [SV67: $i] :
      ( ( ! [SY344: $i] :
            ( ~ ( in @ SV67 @ SY344 )
            | ( element @ SV67 @ SY344 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[500]) ).

thf(621,plain,
    ! [SV68: $i] :
      ( ( ! [SY345: $i] :
            ( ~ ( element @ SV68 @ SY345 )
            | ( empty @ SY345 )
            | ( in @ SV68 @ SY345 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[501]) ).

thf(622,plain,
    ! [SV69: $i] :
      ( ( ! [SY346: $i,SY347: $i] :
            ( ~ ( element @ SY346 @ ( powerset @ SY347 ) )
            | ~ ( in @ SV69 @ SY346 )
            | ( element @ SV69 @ SY347 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[504]) ).

thf(623,plain,
    ! [SV70: $i] :
      ( ( ! [SY348: $i,SY349: $i] :
            ( ~ ( element @ SY348 @ ( powerset @ SY349 ) )
            | ~ ( in @ SV70 @ SY348 )
            | ~ ( empty @ SY349 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[505]) ).

thf(624,plain,
    ! [SV71: $i] :
      ( ( ! [SY350: $i] :
            ( ~ ( empty @ SY350 )
            | ~ ( in @ SV71 @ SY350 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[506]) ).

thf(625,plain,
    ! [SV72: $i] :
      ( ( ! [SY351: $i] :
            ( ( SV72 = SY351 )
            | ~ ( empty @ SV72 )
            | ~ ( empty @ SY351 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[507]) ).

thf(626,plain,
    ( ( ( relation_dom @ empty_set )
      = empty_set )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[509]) ).

thf(627,plain,
    ! [SV73: $i] :
      ( ( ~ ( ~ ! [SY352: $i,SY353: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                                | ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SV73 ) )
                            | ~ ( ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                                | ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY352 ) ) )
                      | ~ ( ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                          | ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SV73 )
                          | ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY352 ) ) )
                  | ( SY353
                    = ( set_union2 @ SV73 @ SY352 ) ) )
            | ~ ! [SY354: $i,SY355: $i] :
                  ( ( SY355
                   != ( set_union2 @ SV73 @ SY354 ) )
                  | ~ ( ~ ! [SY356: $i] :
                            ( ~ ( in @ SY356 @ SY355 )
                            | ( in @ SY356 @ SV73 )
                            | ( in @ SY356 @ SY354 ) )
                      | ~ ~ ( ~ ! [SY357: $i] :
                                  ( ~ ( in @ SY357 @ SV73 )
                                  | ( in @ SY357 @ SY355 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY354 )
                                  | ( in @ SX3 @ SY355 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[510]) ).

thf(628,plain,
    ! [SV74: $i] :
      ( ( ~ ( ~ ! [SY359: $i,SY360: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                                | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                                 != SV74 ) )
                            | ~ ( ~ ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                                | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                                 != SY359 ) ) )
                      | ~ ( ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                          | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                            = SV74 )
                          | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                            = SY359 ) ) )
                  | ( SY360
                    = ( unordered_pair @ SV74 @ SY359 ) ) )
            | ~ ! [SY361: $i,SY362: $i] :
                  ( ( SY362
                   != ( unordered_pair @ SV74 @ SY361 ) )
                  | ~ ( ~ ! [SY363: $i] :
                            ( ~ ( in @ SY363 @ SY362 )
                            | ( SY363 = SV74 )
                            | ( SY363 = SY361 ) )
                      | ~ ~ ( ~ ! [SY364: $i] :
                                  ( ( SY364 != SV74 )
                                  | ( in @ SY364 @ SY362 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY361 )
                                  | ( in @ SX3 @ SY362 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[511]) ).

thf(629,plain,
    ! [SV75: $i] :
      ( ( ~ ( ~ ! [SY366: $i,SY367: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SV75 )
                          | ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY366 )
                          | ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SV75 )
                                | ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) )
                            | ~ ( ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY366 )
                                | ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) ) ) )
                  | ( SY367
                    = ( set_intersection2 @ SV75 @ SY366 ) ) )
            | ~ ! [SY368: $i,SY369: $i] :
                  ( ( SY369
                   != ( set_intersection2 @ SV75 @ SY368 ) )
                  | ~ ( ~ ! [SY370: $i] :
                            ( ~ ( in @ SY370 @ SV75 )
                            | ~ ( in @ SY370 @ SY368 )
                            | ( in @ SY370 @ SY369 ) )
                      | ~ ~ ( ~ ! [SY371: $i] :
                                  ( ~ ( in @ SY371 @ SY369 )
                                  | ( in @ SY371 @ SV75 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY369 )
                                  | ( in @ SX3 @ SY368 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[512]) ).

thf(630,plain,
    ! [SV76: $i] :
      ( ( ~ ( relation @ SV76 )
        | ~ ( ~ ! [SY373: $i] :
                  ( ~ ( ~ ( ! [SY374: $i] :
                              ~ ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ SY374 ) @ SV76 )
                          | ~ ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ ( sK21_SY278 @ SY373 @ SV76 ) ) @ SV76 )
                          | ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) ) )
                  | ( SY373
                    = ( relation_dom @ SV76 ) ) )
            | ~ ! [SY375: $i] :
                  ( ( SY375
                   != ( relation_dom @ SV76 ) )
                  | ~ ( ~ ! [SY376: $i] :
                            ( ! [SY377: $i] :
                                ~ ( in @ ( ordered_pair @ SY376 @ SY377 ) @ SV76 )
                            | ( in @ SY376 @ SY375 ) )
                      | ~ ! [SY378: $i] :
                            ( ~ ( in @ SY378 @ SY375 )
                            | ( in @ ( ordered_pair @ SY378 @ ( sK19_D @ SY378 @ SY375 @ SV76 ) ) @ SV76 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[513]) ).

thf(631,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)],[514]) ).

thf(632,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK37_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[515]) ).

thf(633,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK26_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)],[516]) ).

thf(634,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK33_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)],[517]) ).

thf(635,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_SY276 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_SY276 @ 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)],[518]) ).

thf(636,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)],[519]) ).

thf(637,plain,
    ! [SV77: $i] :
      ( ( ( empty @ SV77 )
        | ~ ( ~ ( element @ ( sK8_B @ SV77 ) @ ( powerset @ SV77 ) )
            | ~ ~ ( empty @ ( sK8_B @ SV77 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[520]) ).

thf(638,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK34_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)],[521]) ).

thf(639,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)],[522]) ).

thf(640,plain,
    ! [SV78: $i] :
      ( ( ~ ( relation @ SV78 )
        | ~ ( ~ ! [SY379: $i] :
                  ( ~ ( relation @ SY379 )
                  | ~ ( subset @ SV78 @ SY379 )
                  | ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SY379 ) ) )
            | ~ ! [SY380: $i] :
                  ( ~ ( relation @ SY380 )
                  | ~ ( subset @ SV78 @ SY380 )
                  | ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SY380 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[523]) ).

thf(641,plain,
    ! [SV79: $i] :
      ( ( ~ ( ~ ! [SY381: $i] :
                  ( ~ ( subset @ SY381 @ ( sK35_B @ SV79 ) )
                  | ( are_equipotent @ SY381 @ ( sK35_B @ SV79 ) )
                  | ( in @ SY381 @ ( sK35_B @ SV79 ) ) )
            | ~ ~ ( ~ ! [SY382: $i] :
                        ( ~ ( in @ SY382 @ ( sK35_B @ SV79 ) )
                        | ( in @ ( powerset @ SY382 ) @ ( sK35_B @ SV79 ) ) )
                  | ~ ~ ( ~ ! [SY383: $i,SY384: $i] :
                              ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
                              | ~ ( subset @ SY384 @ SY383 )
                              | ( in @ SY384 @ ( sK35_B @ SV79 ) ) )
                        | ~ ( in @ SV79 @ ( sK35_B @ SV79 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[524]) ).

thf(642,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)],[525]) ).

thf(643,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)],[526]) ).

thf(644,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)],[527]) ).

thf(645,plain,
    ! [SV80: $i] :
      ( ( ! [SY385: $i] :
            ( ~ ( ~ ( in @ ( sK36_C @ SY385 @ SV80 ) @ SV80 )
                | ~ ~ ( in @ ( sK36_C @ SY385 @ SV80 ) @ SY385 ) )
            | ( element @ SV80 @ ( powerset @ SY385 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[528]) ).

thf(646,plain,
    ! [SV81: $i] :
      ( ( ~ ( ~ ! [SY386: $i,SY387: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SV81 )
                          | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY386 )
                          | ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SV81 )
                                | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) )
                            | ~ ( ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY386 )
                                | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) ) ) )
                  | ( SY387
                    = ( set_difference @ SV81 @ SY386 ) ) )
            | ~ ! [SY388: $i,SY389: $i] :
                  ( ( SY389
                   != ( set_difference @ SV81 @ SY388 ) )
                  | ~ ( ~ ! [SY390: $i] :
                            ( ~ ( in @ SY390 @ SV81 )
                            | ( in @ SY390 @ SY388 )
                            | ( in @ SY390 @ SY389 ) )
                      | ~ ~ ( ~ ! [SY391: $i] :
                                  ( ~ ( in @ SY391 @ SY389 )
                                  | ( in @ SY391 @ SV81 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY389 )
                                  | ~ ( in @ SX3 @ SY388 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[529]) ).

thf(647,plain,
    ! [SV82: $i] :
      ( ( ~ ( relation @ SV82 )
        | ~ ( ~ ! [SY393: $i] :
                  ( ~ ( ~ ( ! [SY394: $i] :
                              ~ ( in @ ( ordered_pair @ SY394 @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                          | ~ ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY393 @ SV82 ) @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                          | ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) ) )
                  | ( SY393
                    = ( relation_rng @ SV82 ) ) )
            | ~ ! [SY395: $i] :
                  ( ( SY395
                   != ( relation_rng @ SV82 ) )
                  | ~ ( ~ ! [SY396: $i] :
                            ( ! [SY397: $i] :
                                ~ ( in @ ( ordered_pair @ SY397 @ SY396 ) @ SV82 )
                            | ( in @ SY396 @ SY395 ) )
                      | ~ ! [SY398: $i] :
                            ( ~ ( in @ SY398 @ SY395 )
                            | ( in @ ( ordered_pair @ ( sK12_D @ SY398 @ SY395 @ SV82 ) @ SY398 ) @ SV82 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[530]) ).

thf(648,plain,
    ! [SV83: $i] :
      ( ( ! [SY399: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SY399 @ SV83 ) @ SV83 )
                    | ~ ( in @ ( sK3_C @ SY399 @ SV83 ) @ SY399 ) )
                | ~ ( ( in @ ( sK3_C @ SY399 @ SV83 ) @ SV83 )
                    | ( in @ ( sK3_C @ SY399 @ SV83 ) @ SY399 ) ) )
            | ( SV83 = SY399 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[531]) ).

thf(649,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK38_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)],[532]) ).

thf(650,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)],[533]) ).

thf(651,plain,
    ! [SV84: $i] :
      ( ( ~ ( relation @ SV84 )
        | ~ ( ~ ! [SY400: $i] :
                  ( ~ ( relation @ SY400 )
                  | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                          | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                          | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) ) )
                  | ( SY400
                    = ( relation_inverse @ SV84 ) ) )
            | ~ ! [SY401: $i] :
                  ( ~ ( relation @ SY401 )
                  | ( SY401
                   != ( relation_inverse @ SV84 ) )
                  | ~ ( ~ ! [SY402: $i,SY403: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY402 @ SY403 ) @ SY401 )
                            | ( in @ ( ordered_pair @ SY403 @ SY402 ) @ SV84 ) )
                      | ~ ! [SY404: $i,SY405: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY405 @ SY404 ) @ SV84 )
                            | ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SY401 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[534]) ).

thf(652,plain,
    ! [SV85: $i] :
      ( ( ~ ( ~ ! [SY406: $i] :
                  ( ~ ( subset @ SY406 @ ( sK1_B @ SV85 ) )
                  | ( are_equipotent @ SY406 @ ( sK1_B @ SV85 ) )
                  | ( in @ SY406 @ ( sK1_B @ SV85 ) ) )
            | ~ ~ ( ~ ! [SY407: $i] :
                        ( ~ ( ~ ! [SY408: $i] :
                                  ( ~ ( subset @ SY408 @ SY407 )
                                  | ( in @ SY408 @ ( sK2_SY267 @ SY407 @ SV85 ) ) )
                            | ~ ( in @ ( sK2_SY267 @ SY407 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
                        | ~ ( in @ SY407 @ ( sK1_B @ SV85 ) ) )
                  | ~ ~ ( ~ ! [SY409: $i,SY410: $i] :
                              ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
                              | ~ ( subset @ SY410 @ SY409 )
                              | ( in @ SY410 @ ( sK1_B @ SV85 ) ) )
                        | ~ ( in @ SV85 @ ( sK1_B @ SV85 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[535]) ).

thf(653,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)],[536]) ).

thf(654,plain,
    ! [SV86: $i] :
      ( ( ~ ( ~ ( element @ ( sK5_B @ SV86 ) @ ( powerset @ SV86 ) )
            | ~ ( empty @ ( sK5_B @ SV86 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[537]) ).

thf(655,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK30_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK30_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK28_C @ SX1 @ SX0 ) @ ( sK29_SY279 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[538]) ).

thf(656,plain,
    ( ( ~ ~ ( empty @ sK6_A )
      | ~ ( relation @ sK6_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[539]) ).

thf(657,plain,
    ! [SV87: $i] :
      ( ( ~ ( ~ ! [SY411: $i] :
                  ( ~ ( subset @ SV87 @ SY411 )
                  | ! [SY412: $i] : ( subset @ ( cartesian_product2 @ SV87 @ SY412 ) @ ( cartesian_product2 @ SY411 @ SY412 ) ) )
            | ~ ! [SY413: $i] :
                  ( ~ ( subset @ SV87 @ SY413 )
                  | ! [SY414: $i] : ( subset @ ( cartesian_product2 @ SY414 @ SV87 ) @ ( cartesian_product2 @ SY414 @ SY413 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[540]) ).

thf(658,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)],[541]) ).

thf(659,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK23_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)],[542]) ).

thf(660,plain,
    ( ( ~ ( empty @ sK9_A )
      | ~ ( relation @ sK9_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[543]) ).

thf(661,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)],[544]) ).

thf(662,plain,
    ( ( ~ ( empty @ empty_set )
      | ~ ( relation @ empty_set ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[545]) ).

thf(663,plain,
    ! [SV88: $i] :
      ( ( ~ ( ~ ! [SY415: $i,SY416: $i] :
                  ( ~ ( in @ SV88 @ SY416 )
                  | ~ ( in @ SY415 @ SY416 )
                  | ( subset @ ( unordered_pair @ SV88 @ SY415 ) @ SY416 ) )
            | ~ ~ ( ~ ! [SY417: $i,SY418: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV88 @ SY417 ) @ SY418 )
                        | ( in @ SV88 @ SY418 ) )
                  | ~ ! [SY419: $i,SY420: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV88 @ SY419 ) @ SY420 )
                        | ( in @ SY419 @ SY420 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[546]) ).

thf(664,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)],[547]) ).

thf(665,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)],[548]) ).

thf(666,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)],[549]) ).

thf(667,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)],[550]) ).

thf(668,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK27_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK27_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK27_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)],[551]) ).

thf(669,plain,
    ! [SV89: $i] :
      ( ( ~ ( ~ ! [SY421: $i,SY422: $i] :
                  ( ~ ( relation @ SY422 )
                  | ~ ( in @ ( ordered_pair @ SV89 @ SY421 ) @ SY422 )
                  | ( in @ SV89 @ ( relation_dom @ SY422 ) ) )
            | ~ ! [SY423: $i,SY424: $i] :
                  ( ~ ( relation @ SY424 )
                  | ~ ( in @ ( ordered_pair @ SV89 @ SY423 ) @ SY424 )
                  | ( in @ SY423 @ ( relation_rng @ SY424 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[552]) ).

thf(670,plain,
    ! [SV1: $i] :
      ( ( ( singleton @ SV1 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[553]) ).

thf(671,plain,
    ! [SV3: $i] :
      ( ( ( ~ ( subset @ SV3 @ empty_set ) )
        = $true )
      | ( ( SV3 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[555]) ).

thf(672,plain,
    ! [SV4: $i] :
      ( ( ( ( empty @ SV4 )
          | ~ ( relation @ SV4 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV4 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[556]) ).

thf(673,plain,
    ! [SV5: $i] :
      ( ( ( ( empty @ SV5 )
          | ~ ( relation @ SV5 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV5 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[557]) ).

thf(674,plain,
    ! [SV10: $i] :
      ( ( ( ~ ( empty @ SV10 ) )
        = $true )
      | ( ( SV10 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[562]) ).

thf(675,plain,
    ! [SV90: $i,SV11: $i] :
      ( ( ~ ( in @ SV11 @ SV90 )
        | ( ( set_union2 @ ( singleton @ SV11 ) @ SV90 )
          = SV90 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[563]) ).

thf(676,plain,
    ! [SV91: $i,SV12: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV12 ) @ SV91 )
        | ~ ( in @ SV12 @ SV91 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[564]) ).

thf(677,plain,
    ! [SV92: $i,SV13: $i] :
      ( ( ( in @ SV13 @ SV92 )
        | ( disjoint @ ( singleton @ SV13 ) @ SV92 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[565]) ).

thf(678,plain,
    ! [SV14: $i,SV93: $i] :
      ( ( ~ ( element @ SV93 @ ( powerset @ SV14 ) )
        | ! [SY425: $i] :
            ( ~ ( in @ SY425 @ SV93 )
            | ( in @ SY425 @ SV14 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[566]) ).

thf(679,plain,
    ! [SV94: $i,SV15: $i] :
      ( ( ~ ( subset @ SV15 @ SV94 )
        | ! [SY426: $i] :
            ( ( in @ SY426 @ SV15 )
            | ( subset @ SV15 @ ( set_difference @ SV94 @ ( singleton @ SY426 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[567]) ).

thf(680,plain,
    ! [SV95: $i,SV16: $i] :
      ( ( ~ ( in @ SV16 @ SV95 )
        | ( subset @ SV16 @ ( union @ SV95 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[568]) ).

thf(681,plain,
    ! [SV96: $i,SV17: $i] :
      ( ( ! [SY427: $i,SY428: $i] :
            ( ~ ( subset @ SV17 @ SV96 )
            | ~ ( subset @ SY427 @ SY428 )
            | ( subset @ ( cartesian_product2 @ SV17 @ SY427 ) @ ( cartesian_product2 @ SV96 @ SY428 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[569]) ).

thf(682,plain,
    ! [SV97: $i,SV18: $i] :
      ( ( ~ ( subset @ SV18 @ SV97 )
        | ( ( set_union2 @ SV18 @ SV97 )
          = SV97 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[570]) ).

thf(683,plain,
    ! [SV98: $i,SV19: $i] :
      ( ( subset @ ( set_intersection2 @ SV19 @ SV98 ) @ SV19 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[571]) ).

thf(684,plain,
    ! [SV99: $i,SV20: $i] :
      ( ( ! [SY429: $i] :
            ( ~ ( subset @ SV20 @ SV99 )
            | ~ ( subset @ SV20 @ SY429 )
            | ( subset @ SV20 @ ( set_intersection2 @ SV99 @ SY429 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[572]) ).

thf(685,plain,
    ! [SV100: $i,SV21: $i] :
      ( ( ! [SY430: $i] :
            ( ~ ( subset @ SV21 @ SV100 )
            | ~ ( subset @ SV100 @ SY430 )
            | ( subset @ SV21 @ SY430 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[573]) ).

thf(686,plain,
    ! [SV22: $i] :
      ( ( ( ~ ( relation @ SV22 ) )
        = $true )
      | ( ( subset @ SV22 @ ( cartesian_product2 @ ( relation_dom @ SV22 ) @ ( relation_rng @ SV22 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[574]) ).

thf(687,plain,
    ! [SV101: $i,SV23: $i] :
      ( ( ~ ( subset @ SV23 @ SV101 )
        | ! [SY431: $i] : ( subset @ ( set_intersection2 @ SV23 @ SY431 ) @ ( set_intersection2 @ SV101 @ SY431 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[575]) ).

thf(688,plain,
    ! [SV102: $i,SV24: $i] :
      ( ( ~ ( subset @ SV24 @ SV102 )
        | ( ( set_intersection2 @ SV24 @ SV102 )
          = SV24 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[576]) ).

thf(689,plain,
    ! [SV103: $i,SV25: $i] :
      ( ( ~ ( subset @ SV25 @ SV103 )
        | ! [SY432: $i] : ( subset @ ( set_difference @ SV25 @ SY432 ) @ ( set_difference @ SV103 @ SY432 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[577]) ).

thf(690,plain,
    ! [SV104: $i,SV26: $i] :
      ( ( subset @ ( set_difference @ SV26 @ SV104 ) @ SV26 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[578]) ).

thf(691,plain,
    ! [SV105: $i,SV27: $i] :
      ( ( ( set_union2 @ SV27 @ ( set_difference @ SV105 @ SV27 ) )
        = ( set_union2 @ SV27 @ SV105 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[579]) ).

thf(692,plain,
    ! [SV106: $i,SV28: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV28 @ SV106 ) @ SV106 )
        = ( set_difference @ SV28 @ SV106 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[580]) ).

thf(693,plain,
    ! [SV29: $i] :
      ( ( ( ~ ( relation @ SV29 ) )
        = $true )
      | ( ( ! [SY314: $i] :
              ( ~ ( relation @ SY314 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV29 @ SY314 ) ) @ ( relation_dom @ SV29 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[581]) ).

thf(694,plain,
    ! [SV30: $i] :
      ( ( ( ~ ( relation @ SV30 ) )
        = $true )
      | ( ( ! [SY315: $i] :
              ( ~ ( relation @ SY315 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV30 @ SY315 ) ) @ ( relation_rng @ SY315 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[582]) ).

thf(695,plain,
    ! [SV107: $i,SV31: $i] :
      ( ( ~ ( subset @ SV31 @ SV107 )
        | ( SV107
          = ( set_union2 @ SV31 @ ( set_difference @ SV107 @ SV31 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[583]) ).

thf(696,plain,
    ! [SV32: $i] :
      ( ( ( ~ ( relation @ SV32 ) )
        = $true )
      | ( ( ! [SY317: $i] :
              ( ~ ( relation @ SY317 )
              | ~ ( subset @ ( relation_rng @ SV32 ) @ ( relation_dom @ SY317 ) )
              | ( ( relation_dom @ ( relation_composition @ SV32 @ SY317 ) )
                = ( relation_dom @ SV32 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[584]) ).

thf(697,plain,
    ! [SV108: $i,SV33: $i] :
      ( ( ~ ( in @ SV33 @ SV108 )
        | ( ( set_union2 @ ( singleton @ SV33 ) @ SV108 )
          = SV108 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[585]) ).

thf(698,plain,
    ! [SV34: $i] :
      ( ( ( ~ ( relation @ SV34 ) )
        = $true )
      | ( ( ! [SY319: $i] :
              ( ~ ( relation @ SY319 )
              | ~ ( subset @ ( relation_dom @ SV34 ) @ ( relation_rng @ SY319 ) )
              | ( ( relation_rng @ ( relation_composition @ SY319 @ SV34 ) )
                = ( relation_rng @ SV34 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[586]) ).

thf(699,plain,
    ! [SV109: $i,SV35: $i] :
      ( ( ( set_difference @ SV35 @ ( set_difference @ SV35 @ SV109 ) )
        = ( set_intersection2 @ SV35 @ SV109 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[587]) ).

thf(700,plain,
    ! [SV36: $i] :
      ( ( ( ~ ( relation @ SV36 ) )
        = $true )
      | ( ( ( in @ ( ordered_pair @ ( sK31_B @ SV36 ) @ ( sK32_SY282 @ SV36 ) ) @ SV36 )
          | ( SV36 = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[588]) ).

thf(701,plain,
    ! [SV37: $i,SV110: $i] :
      ( ( ~ ( proper_subset @ SV110 @ SV37 )
        | ~ ( subset @ SV37 @ SV110 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[589]) ).

thf(702,plain,
    ! [SV38: $i,SV111: $i] :
      ( ( ! [SY433: $i] :
            ( ~ ( disjoint @ SV111 @ SY433 )
            | ~ ( subset @ SV38 @ SV111 )
            | ( disjoint @ SV38 @ SY433 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[590]) ).

thf(703,plain,
    ! [SV112: $i,SV40: $i] :
      ( ( ~ ( subset @ ( singleton @ SV40 ) @ ( singleton @ SV112 ) )
        | ( SV40 = SV112 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[592]) ).

thf(704,plain,
    ! [SV113: $i,SV41: $i] :
      ( ( subset @ SV41 @ ( set_union2 @ SV41 @ SV113 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[593]) ).

thf(705,plain,
    ! [SV114: $i,SV42: $i] :
      ( ( ! [SY434: $i] :
            ( ~ ( subset @ SV42 @ SV114 )
            | ~ ( subset @ SY434 @ SV114 )
            | ( subset @ ( set_union2 @ SV42 @ SY434 ) @ SV114 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[594]) ).

thf(706,plain,
    ! [SV115: $i,SV43: $i] :
      ( ( ! [SY435: $i] :
            ( ( singleton @ SV43 )
           != ( unordered_pair @ SV115 @ SY435 ) )
        | ( SV43 = SV115 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[595]) ).

thf(707,plain,
    ! [SV116: $i,SV44: $i] :
      ( ( ~ ( in @ SV44 @ SV116 )
        | ( subset @ SV44 @ ( union @ SV116 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[596]) ).

thf(708,plain,
    ! [SV117: $i,SV46: $i] :
      ( ( ! [SY436: $i] :
            ( ( ( singleton @ SV46 )
             != ( unordered_pair @ SV117 @ SY436 ) )
            | ( SV117 = SY436 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[598]) ).

thf(709,plain,
    ! [SV118: $i,SV47: $i] :
      ( ( ~ ( in @ SV47 @ SV118 )
        | ~ ( in @ SV118 @ SV47 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[599]) ).

thf(710,plain,
    ! [SV48: $i] :
      ( ( ( ~ ( empty @ SV48 ) )
        = $true )
      | ( ( relation @ SV48 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[600]) ).

thf(711,plain,
    ! [SV119: $i,SV49: $i] :
      ( ( ( set_union2 @ SV49 @ SV119 )
        = ( set_union2 @ SV119 @ SV49 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[601]) ).

thf(712,plain,
    ! [SV120: $i,SV50: $i] :
      ( ( ( set_intersection2 @ SV50 @ SV120 )
        = ( set_intersection2 @ SV120 @ SV50 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[602]) ).

thf(713,plain,
    ! [SV51: $i] :
      ( ( ( ~ ( relation @ SV51 ) )
        = $true )
      | ( ( ( relation_field @ SV51 )
          = ( set_union2 @ ( relation_dom @ SV51 ) @ ( relation_rng @ SV51 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[603]) ).

thf(714,plain,
    ! [SV52: $i] :
      ( ( ( ~ ( relation @ SV52 ) )
        = $true )
      | ( ( relation @ ( relation_inverse @ SV52 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[604]) ).

thf(715,plain,
    ! [SV121: $i,SV53: $i] :
      ( ( ~ ( relation @ SV53 )
        | ~ ( relation @ SV121 )
        | ( relation @ ( relation_composition @ SV53 @ SV121 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[605]) ).

thf(716,plain,
    ! [SV54: $i] :
      ( ( empty @ ( powerset @ SV54 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[606]) ).

thf(717,plain,
    ! [SV122: $i,SV55: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV55 @ SV122 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[607]) ).

thf(718,plain,
    ! [SV123: $i,SV56: $i] :
      ( ( ~ ( relation @ SV56 )
        | ~ ( relation @ SV123 )
        | ( relation @ ( set_union2 @ SV56 @ SV123 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[608]) ).

thf(719,plain,
    ! [SV57: $i] :
      ( ( empty @ ( singleton @ SV57 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[609]) ).

thf(720,plain,
    ! [SV58: $i] :
      ( ( ( empty @ SV58 )
        = $true )
      | ( ( ! [SY339: $i] :
              ~ ( empty @ ( set_union2 @ SV58 @ SY339 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[610]) ).

thf(721,plain,
    ! [SV124: $i,SV59: $i] :
      ( ( ~ ( empty @ ( unordered_pair @ SV59 @ SV124 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[611]) ).

thf(722,plain,
    ! [SV60: $i] :
      ( ( ( empty @ SV60 )
        = $true )
      | ( ( ! [SY341: $i] :
              ~ ( empty @ ( set_union2 @ SY341 @ SV60 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[612]) ).

thf(723,plain,
    ! [SV125: $i,SV61: $i] :
      ( ( ( empty @ SV61 )
        | ( empty @ SV125 )
        | ~ ( empty @ ( cartesian_product2 @ SV61 @ SV125 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[613]) ).

thf(724,plain,
    ! [SV64: $i] :
      ( ( ( ~ ( relation @ SV64 ) )
        = $true )
      | ( ( ( relation_inverse @ ( relation_inverse @ SV64 ) )
          = SV64 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[616]) ).

thf(725,plain,
    ! [SV126: $i,SV66: $i] :
      ( ( ~ ( disjoint @ SV66 @ SV126 )
        | ( disjoint @ SV126 @ SV66 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[619]) ).

thf(726,plain,
    ! [SV127: $i,SV67: $i] :
      ( ( ~ ( in @ SV67 @ SV127 )
        | ( element @ SV67 @ SV127 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[620]) ).

thf(727,plain,
    ! [SV128: $i,SV68: $i] :
      ( ( ~ ( element @ SV68 @ SV128 )
        | ( empty @ SV128 )
        | ( in @ SV68 @ SV128 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[621]) ).

thf(728,plain,
    ! [SV69: $i,SV129: $i] :
      ( ( ! [SY437: $i] :
            ( ~ ( element @ SV129 @ ( powerset @ SY437 ) )
            | ~ ( in @ SV69 @ SV129 )
            | ( element @ SV69 @ SY437 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[622]) ).

thf(729,plain,
    ! [SV70: $i,SV130: $i] :
      ( ( ! [SY438: $i] :
            ( ~ ( element @ SV130 @ ( powerset @ SY438 ) )
            | ~ ( in @ SV70 @ SV130 )
            | ~ ( empty @ SY438 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[623]) ).

thf(730,plain,
    ! [SV71: $i,SV131: $i] :
      ( ( ~ ( empty @ SV131 )
        | ~ ( in @ SV71 @ SV131 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[624]) ).

thf(731,plain,
    ! [SV132: $i,SV72: $i] :
      ( ( ( SV72 = SV132 )
        | ~ ( empty @ SV72 )
        | ~ ( empty @ SV132 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[625]) ).

thf(732,plain,
    ! [SV73: $i] :
      ( ( ~ ! [SY352: $i,SY353: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                            | ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SV73 ) )
                        | ~ ( ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                            | ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY352 ) ) )
                  | ~ ( ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                      | ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SV73 )
                      | ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY352 ) ) )
              | ( SY353
                = ( set_union2 @ SV73 @ SY352 ) ) )
        | ~ ! [SY354: $i,SY355: $i] :
              ( ( SY355
               != ( set_union2 @ SV73 @ SY354 ) )
              | ~ ( ~ ! [SY356: $i] :
                        ( ~ ( in @ SY356 @ SY355 )
                        | ( in @ SY356 @ SV73 )
                        | ( in @ SY356 @ SY354 ) )
                  | ~ ~ ( ~ ! [SY357: $i] :
                              ( ~ ( in @ SY357 @ SV73 )
                              | ( in @ SY357 @ SY355 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY354 )
                              | ( in @ SX3 @ SY355 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[627]) ).

thf(733,plain,
    ! [SV74: $i] :
      ( ( ~ ! [SY359: $i,SY360: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                            | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                             != SV74 ) )
                        | ~ ( ~ ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                            | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                             != SY359 ) ) )
                  | ~ ( ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                      | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                        = SV74 )
                      | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                        = SY359 ) ) )
              | ( SY360
                = ( unordered_pair @ SV74 @ SY359 ) ) )
        | ~ ! [SY361: $i,SY362: $i] :
              ( ( SY362
               != ( unordered_pair @ SV74 @ SY361 ) )
              | ~ ( ~ ! [SY363: $i] :
                        ( ~ ( in @ SY363 @ SY362 )
                        | ( SY363 = SV74 )
                        | ( SY363 = SY361 ) )
                  | ~ ~ ( ~ ! [SY364: $i] :
                              ( ( SY364 != SV74 )
                              | ( in @ SY364 @ SY362 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY361 )
                              | ( in @ SX3 @ SY362 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[628]) ).

thf(734,plain,
    ! [SV75: $i] :
      ( ( ~ ! [SY366: $i,SY367: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SV75 )
                      | ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY366 )
                      | ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SV75 )
                            | ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) )
                        | ~ ( ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY366 )
                            | ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) ) ) )
              | ( SY367
                = ( set_intersection2 @ SV75 @ SY366 ) ) )
        | ~ ! [SY368: $i,SY369: $i] :
              ( ( SY369
               != ( set_intersection2 @ SV75 @ SY368 ) )
              | ~ ( ~ ! [SY370: $i] :
                        ( ~ ( in @ SY370 @ SV75 )
                        | ~ ( in @ SY370 @ SY368 )
                        | ( in @ SY370 @ SY369 ) )
                  | ~ ~ ( ~ ! [SY371: $i] :
                              ( ~ ( in @ SY371 @ SY369 )
                              | ( in @ SY371 @ SV75 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY369 )
                              | ( in @ SX3 @ SY368 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[629]) ).

thf(735,plain,
    ! [SV76: $i] :
      ( ( ( ~ ( relation @ SV76 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY373: $i] :
                    ( ~ ( ~ ( ! [SY374: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ SY374 ) @ SV76 )
                            | ~ ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ ( sK21_SY278 @ SY373 @ SV76 ) ) @ SV76 )
                            | ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) ) )
                    | ( SY373
                      = ( relation_dom @ SV76 ) ) )
              | ~ ! [SY375: $i] :
                    ( ( SY375
                     != ( relation_dom @ SV76 ) )
                    | ~ ( ~ ! [SY376: $i] :
                              ( ! [SY377: $i] :
                                  ~ ( in @ ( ordered_pair @ SY376 @ SY377 ) @ SV76 )
                              | ( in @ SY376 @ SY375 ) )
                        | ~ ! [SY378: $i] :
                              ( ~ ( in @ SY378 @ SY375 )
                              | ( in @ ( ordered_pair @ SY378 @ ( sK19_D @ SY378 @ SY375 @ SV76 ) ) @ SV76 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[630]) ).

thf(736,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)],[631]) ).

thf(737,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)],[631]) ).

thf(738,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK37_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[632]) ).

thf(739,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[632]) ).

thf(740,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[633]) ).

thf(741,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)],[633]) ).

thf(742,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK33_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[634]) ).

thf(743,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[634]) ).

thf(744,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_SY276 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_SY276 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[635]) ).

thf(745,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)],[635]) ).

thf(746,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
              = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[636]) ).

thf(747,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
              = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[636]) ).

thf(748,plain,
    ! [SV77: $i] :
      ( ( ( empty @ SV77 )
        = $true )
      | ( ( ~ ( ~ ( element @ ( sK8_B @ SV77 ) @ ( powerset @ SV77 ) )
              | ~ ~ ( empty @ ( sK8_B @ SV77 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[637]) ).

thf(749,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[638]) ).

thf(750,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[638]) ).

thf(751,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[639]) ).

thf(752,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[639]) ).

thf(753,plain,
    ! [SV78: $i] :
      ( ( ( ~ ( relation @ SV78 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY379: $i] :
                    ( ~ ( relation @ SY379 )
                    | ~ ( subset @ SV78 @ SY379 )
                    | ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SY379 ) ) )
              | ~ ! [SY380: $i] :
                    ( ~ ( relation @ SY380 )
                    | ~ ( subset @ SV78 @ SY380 )
                    | ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SY380 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[640]) ).

thf(754,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY381: $i] :
              ( ~ ( subset @ SY381 @ ( sK35_B @ SV79 ) )
              | ( are_equipotent @ SY381 @ ( sK35_B @ SV79 ) )
              | ( in @ SY381 @ ( sK35_B @ SV79 ) ) )
        | ~ ~ ( ~ ! [SY382: $i] :
                    ( ~ ( in @ SY382 @ ( sK35_B @ SV79 ) )
                    | ( in @ ( powerset @ SY382 ) @ ( sK35_B @ SV79 ) ) )
              | ~ ~ ( ~ ! [SY383: $i,SY384: $i] :
                          ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
                          | ~ ( subset @ SY384 @ SY383 )
                          | ( in @ SY384 @ ( sK35_B @ SV79 ) ) )
                    | ~ ( in @ SV79 @ ( sK35_B @ SV79 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[641]) ).

thf(755,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[642]) ).

thf(756,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[642]) ).

thf(757,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[643]) ).

thf(758,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)],[643]) ).

thf(759,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[644]) ).

thf(760,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[644]) ).

thf(761,plain,
    ! [SV80: $i,SV133: $i] :
      ( ( ~ ( ~ ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV80 )
            | ~ ~ ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV133 ) )
        | ( element @ SV80 @ ( powerset @ SV133 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[645]) ).

thf(762,plain,
    ! [SV81: $i] :
      ( ( ~ ! [SY386: $i,SY387: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SV81 )
                      | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY386 )
                      | ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SV81 )
                            | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) )
                        | ~ ( ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY386 )
                            | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) ) ) )
              | ( SY387
                = ( set_difference @ SV81 @ SY386 ) ) )
        | ~ ! [SY388: $i,SY389: $i] :
              ( ( SY389
               != ( set_difference @ SV81 @ SY388 ) )
              | ~ ( ~ ! [SY390: $i] :
                        ( ~ ( in @ SY390 @ SV81 )
                        | ( in @ SY390 @ SY388 )
                        | ( in @ SY390 @ SY389 ) )
                  | ~ ~ ( ~ ! [SY391: $i] :
                              ( ~ ( in @ SY391 @ SY389 )
                              | ( in @ SY391 @ SV81 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY389 )
                              | ~ ( in @ SX3 @ SY388 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[646]) ).

thf(763,plain,
    ! [SV82: $i] :
      ( ( ( ~ ( relation @ SV82 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY393: $i] :
                    ( ~ ( ~ ( ! [SY394: $i] :
                                ~ ( in @ ( ordered_pair @ SY394 @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                            | ~ ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY393 @ SV82 ) @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                            | ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) ) )
                    | ( SY393
                      = ( relation_rng @ SV82 ) ) )
              | ~ ! [SY395: $i] :
                    ( ( SY395
                     != ( relation_rng @ SV82 ) )
                    | ~ ( ~ ! [SY396: $i] :
                              ( ! [SY397: $i] :
                                  ~ ( in @ ( ordered_pair @ SY397 @ SY396 ) @ SV82 )
                              | ( in @ SY396 @ SY395 ) )
                        | ~ ! [SY398: $i] :
                              ( ~ ( in @ SY398 @ SY395 )
                              | ( in @ ( ordered_pair @ ( sK12_D @ SY398 @ SY395 @ SV82 ) @ SY398 ) @ SV82 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[647]) ).

thf(764,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
                | ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) )
            | ~ ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
                | ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) ) )
        | ( SV83 = SV134 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[648]) ).

thf(765,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK38_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)],[649]) ).

thf(766,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)],[649]) ).

thf(767,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[650]) ).

thf(768,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)],[650]) ).

thf(769,plain,
    ! [SV84: $i] :
      ( ( ( ~ ( relation @ SV84 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY400: $i] :
                    ( ~ ( relation @ SY400 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                            | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                            | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) ) )
                    | ( SY400
                      = ( relation_inverse @ SV84 ) ) )
              | ~ ! [SY401: $i] :
                    ( ~ ( relation @ SY401 )
                    | ( SY401
                     != ( relation_inverse @ SV84 ) )
                    | ~ ( ~ ! [SY402: $i,SY403: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY402 @ SY403 ) @ SY401 )
                              | ( in @ ( ordered_pair @ SY403 @ SY402 ) @ SV84 ) )
                        | ~ ! [SY404: $i,SY405: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY405 @ SY404 ) @ SV84 )
                              | ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SY401 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[651]) ).

thf(770,plain,
    ! [SV85: $i] :
      ( ( ~ ! [SY406: $i] :
              ( ~ ( subset @ SY406 @ ( sK1_B @ SV85 ) )
              | ( are_equipotent @ SY406 @ ( sK1_B @ SV85 ) )
              | ( in @ SY406 @ ( sK1_B @ SV85 ) ) )
        | ~ ~ ( ~ ! [SY407: $i] :
                    ( ~ ( ~ ! [SY408: $i] :
                              ( ~ ( subset @ SY408 @ SY407 )
                              | ( in @ SY408 @ ( sK2_SY267 @ SY407 @ SV85 ) ) )
                        | ~ ( in @ ( sK2_SY267 @ SY407 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
                    | ~ ( in @ SY407 @ ( sK1_B @ SV85 ) ) )
              | ~ ~ ( ~ ! [SY409: $i,SY410: $i] :
                          ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
                          | ~ ( subset @ SY410 @ SY409 )
                          | ( in @ SY410 @ ( sK1_B @ SV85 ) ) )
                    | ~ ( in @ SV85 @ ( sK1_B @ SV85 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[652]) ).

thf(771,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[653]) ).

thf(772,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[653]) ).

thf(773,plain,
    ! [SV86: $i] :
      ( ( ~ ( element @ ( sK5_B @ SV86 ) @ ( powerset @ SV86 ) )
        | ~ ( empty @ ( sK5_B @ SV86 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[654]) ).

thf(774,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK30_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK30_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[655]) ).

thf(775,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK28_C @ SX1 @ SX0 ) @ ( sK29_SY279 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[655]) ).

thf(776,plain,
    ( ( ~ ~ ( empty @ sK6_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[656]) ).

thf(777,plain,
    ( ( ~ ( relation @ sK6_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[656]) ).

thf(778,plain,
    ! [SV87: $i] :
      ( ( ~ ! [SY411: $i] :
              ( ~ ( subset @ SV87 @ SY411 )
              | ! [SY412: $i] : ( subset @ ( cartesian_product2 @ SV87 @ SY412 ) @ ( cartesian_product2 @ SY411 @ SY412 ) ) )
        | ~ ! [SY413: $i] :
              ( ~ ( subset @ SV87 @ SY413 )
              | ! [SY414: $i] : ( subset @ ( cartesian_product2 @ SY414 @ SV87 ) @ ( cartesian_product2 @ SY414 @ SY413 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[657]) ).

thf(779,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[658]) ).

thf(780,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[658]) ).

thf(781,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[659]) ).

thf(782,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[659]) ).

thf(783,plain,
    ( ( ~ ( empty @ sK9_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[660]) ).

thf(784,plain,
    ( ( ~ ( relation @ sK9_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[660]) ).

thf(785,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[661]) ).

thf(786,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)],[661]) ).

thf(787,plain,
    ( ( ~ ( empty @ empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[662]) ).

thf(788,plain,
    ( ( ~ ( relation @ empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[662]) ).

thf(789,plain,
    ! [SV88: $i] :
      ( ( ~ ! [SY415: $i,SY416: $i] :
              ( ~ ( in @ SV88 @ SY416 )
              | ~ ( in @ SY415 @ SY416 )
              | ( subset @ ( unordered_pair @ SV88 @ SY415 ) @ SY416 ) )
        | ~ ~ ( ~ ! [SY417: $i,SY418: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV88 @ SY417 ) @ SY418 )
                    | ( in @ SV88 @ SY418 ) )
              | ~ ! [SY419: $i,SY420: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV88 @ SY419 ) @ SY420 )
                    | ( in @ SY419 @ SY420 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[663]) ).

thf(790,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[664]) ).

thf(791,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[664]) ).

thf(792,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[665]) ).

thf(793,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)],[665]) ).

thf(794,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[666]) ).

thf(795,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[666]) ).

thf(796,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[667]) ).

thf(797,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[667]) ).

thf(798,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK27_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK27_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[668]) ).

thf(799,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)],[668]) ).

thf(800,plain,
    ! [SV89: $i] :
      ( ( ~ ! [SY421: $i,SY422: $i] :
              ( ~ ( relation @ SY422 )
              | ~ ( in @ ( ordered_pair @ SV89 @ SY421 ) @ SY422 )
              | ( in @ SV89 @ ( relation_dom @ SY422 ) ) )
        | ~ ! [SY423: $i,SY424: $i] :
              ( ~ ( relation @ SY424 )
              | ~ ( in @ ( ordered_pair @ SV89 @ SY423 ) @ SY424 )
              | ( in @ SY423 @ ( relation_rng @ SY424 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[669]) ).

thf(801,plain,
    ! [SV3: $i] :
      ( ( ( subset @ SV3 @ empty_set )
        = $false )
      | ( ( SV3 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[671]) ).

thf(802,plain,
    ! [SV4: $i] :
      ( ( ( empty @ SV4 )
        = $true )
      | ( ( ~ ( relation @ SV4 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV4 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[672]) ).

thf(803,plain,
    ! [SV5: $i] :
      ( ( ( empty @ SV5 )
        = $true )
      | ( ( ~ ( relation @ SV5 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV5 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[673]) ).

thf(804,plain,
    ! [SV10: $i] :
      ( ( ( empty @ SV10 )
        = $false )
      | ( ( SV10 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[674]) ).

thf(805,plain,
    ! [SV90: $i,SV11: $i] :
      ( ( ( ~ ( in @ SV11 @ SV90 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV11 ) @ SV90 )
          = SV90 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[675]) ).

thf(806,plain,
    ! [SV91: $i,SV12: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV12 ) @ SV91 ) )
        = $true )
      | ( ( ~ ( in @ SV12 @ SV91 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[676]) ).

thf(807,plain,
    ! [SV92: $i,SV13: $i] :
      ( ( ( in @ SV13 @ SV92 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV13 ) @ SV92 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[677]) ).

thf(808,plain,
    ! [SV14: $i,SV93: $i] :
      ( ( ( ~ ( element @ SV93 @ ( powerset @ SV14 ) ) )
        = $true )
      | ( ( ! [SY425: $i] :
              ( ~ ( in @ SY425 @ SV93 )
              | ( in @ SY425 @ SV14 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[678]) ).

thf(809,plain,
    ! [SV94: $i,SV15: $i] :
      ( ( ( ~ ( subset @ SV15 @ SV94 ) )
        = $true )
      | ( ( ! [SY426: $i] :
              ( ( in @ SY426 @ SV15 )
              | ( subset @ SV15 @ ( set_difference @ SV94 @ ( singleton @ SY426 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[679]) ).

thf(810,plain,
    ! [SV95: $i,SV16: $i] :
      ( ( ( ~ ( in @ SV16 @ SV95 ) )
        = $true )
      | ( ( subset @ SV16 @ ( union @ SV95 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[680]) ).

thf(811,plain,
    ! [SV135: $i,SV96: $i,SV17: $i] :
      ( ( ! [SY439: $i] :
            ( ~ ( subset @ SV17 @ SV96 )
            | ~ ( subset @ SV135 @ SY439 )
            | ( subset @ ( cartesian_product2 @ SV17 @ SV135 ) @ ( cartesian_product2 @ SV96 @ SY439 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[681]) ).

thf(812,plain,
    ! [SV97: $i,SV18: $i] :
      ( ( ( ~ ( subset @ SV18 @ SV97 ) )
        = $true )
      | ( ( ( set_union2 @ SV18 @ SV97 )
          = SV97 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[682]) ).

thf(813,plain,
    ! [SV136: $i,SV99: $i,SV20: $i] :
      ( ( ~ ( subset @ SV20 @ SV99 )
        | ~ ( subset @ SV20 @ SV136 )
        | ( subset @ SV20 @ ( set_intersection2 @ SV99 @ SV136 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[684]) ).

thf(814,plain,
    ! [SV137: $i,SV100: $i,SV21: $i] :
      ( ( ~ ( subset @ SV21 @ SV100 )
        | ~ ( subset @ SV100 @ SV137 )
        | ( subset @ SV21 @ SV137 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[685]) ).

thf(815,plain,
    ! [SV22: $i] :
      ( ( ( relation @ SV22 )
        = $false )
      | ( ( subset @ SV22 @ ( cartesian_product2 @ ( relation_dom @ SV22 ) @ ( relation_rng @ SV22 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[686]) ).

thf(816,plain,
    ! [SV101: $i,SV23: $i] :
      ( ( ( ~ ( subset @ SV23 @ SV101 ) )
        = $true )
      | ( ( ! [SY431: $i] : ( subset @ ( set_intersection2 @ SV23 @ SY431 ) @ ( set_intersection2 @ SV101 @ SY431 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[687]) ).

thf(817,plain,
    ! [SV102: $i,SV24: $i] :
      ( ( ( ~ ( subset @ SV24 @ SV102 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV24 @ SV102 )
          = SV24 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[688]) ).

thf(818,plain,
    ! [SV103: $i,SV25: $i] :
      ( ( ( ~ ( subset @ SV25 @ SV103 ) )
        = $true )
      | ( ( ! [SY432: $i] : ( subset @ ( set_difference @ SV25 @ SY432 ) @ ( set_difference @ SV103 @ SY432 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[689]) ).

thf(819,plain,
    ! [SV29: $i] :
      ( ( ( relation @ SV29 )
        = $false )
      | ( ( ! [SY314: $i] :
              ( ~ ( relation @ SY314 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV29 @ SY314 ) ) @ ( relation_dom @ SV29 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[693]) ).

thf(820,plain,
    ! [SV30: $i] :
      ( ( ( relation @ SV30 )
        = $false )
      | ( ( ! [SY315: $i] :
              ( ~ ( relation @ SY315 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV30 @ SY315 ) ) @ ( relation_rng @ SY315 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[694]) ).

thf(821,plain,
    ! [SV107: $i,SV31: $i] :
      ( ( ( ~ ( subset @ SV31 @ SV107 ) )
        = $true )
      | ( ( SV107
          = ( set_union2 @ SV31 @ ( set_difference @ SV107 @ SV31 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[695]) ).

thf(822,plain,
    ! [SV32: $i] :
      ( ( ( relation @ SV32 )
        = $false )
      | ( ( ! [SY317: $i] :
              ( ~ ( relation @ SY317 )
              | ~ ( subset @ ( relation_rng @ SV32 ) @ ( relation_dom @ SY317 ) )
              | ( ( relation_dom @ ( relation_composition @ SV32 @ SY317 ) )
                = ( relation_dom @ SV32 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[696]) ).

thf(823,plain,
    ! [SV108: $i,SV33: $i] :
      ( ( ( ~ ( in @ SV33 @ SV108 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV33 ) @ SV108 )
          = SV108 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[697]) ).

thf(824,plain,
    ! [SV34: $i] :
      ( ( ( relation @ SV34 )
        = $false )
      | ( ( ! [SY319: $i] :
              ( ~ ( relation @ SY319 )
              | ~ ( subset @ ( relation_dom @ SV34 ) @ ( relation_rng @ SY319 ) )
              | ( ( relation_rng @ ( relation_composition @ SY319 @ SV34 ) )
                = ( relation_rng @ SV34 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[698]) ).

thf(825,plain,
    ! [SV36: $i] :
      ( ( ( relation @ SV36 )
        = $false )
      | ( ( ( in @ ( ordered_pair @ ( sK31_B @ SV36 ) @ ( sK32_SY282 @ SV36 ) ) @ SV36 )
          | ( SV36 = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[700]) ).

thf(826,plain,
    ! [SV37: $i,SV110: $i] :
      ( ( ( ~ ( proper_subset @ SV110 @ SV37 ) )
        = $true )
      | ( ( ~ ( subset @ SV37 @ SV110 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[701]) ).

thf(827,plain,
    ! [SV38: $i,SV138: $i,SV111: $i] :
      ( ( ~ ( disjoint @ SV111 @ SV138 )
        | ~ ( subset @ SV38 @ SV111 )
        | ( disjoint @ SV38 @ SV138 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[702]) ).

thf(828,plain,
    ! [SV112: $i,SV40: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV40 ) @ ( singleton @ SV112 ) ) )
        = $true )
      | ( ( SV40 = SV112 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[703]) ).

thf(829,plain,
    ! [SV139: $i,SV114: $i,SV42: $i] :
      ( ( ~ ( subset @ SV42 @ SV114 )
        | ~ ( subset @ SV139 @ SV114 )
        | ( subset @ ( set_union2 @ SV42 @ SV139 ) @ SV114 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[705]) ).

thf(830,plain,
    ! [SV115: $i,SV43: $i] :
      ( ( ( ! [SY435: $i] :
              ( ( singleton @ SV43 )
             != ( unordered_pair @ SV115 @ SY435 ) ) )
        = $true )
      | ( ( SV43 = SV115 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[706]) ).

thf(831,plain,
    ! [SV116: $i,SV44: $i] :
      ( ( ( ~ ( in @ SV44 @ SV116 ) )
        = $true )
      | ( ( subset @ SV44 @ ( union @ SV116 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[707]) ).

thf(832,plain,
    ! [SV140: $i,SV117: $i,SV46: $i] :
      ( ( ( ( singleton @ SV46 )
         != ( unordered_pair @ SV117 @ SV140 ) )
        | ( SV117 = SV140 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[708]) ).

thf(833,plain,
    ! [SV118: $i,SV47: $i] :
      ( ( ( ~ ( in @ SV47 @ SV118 ) )
        = $true )
      | ( ( ~ ( in @ SV118 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[709]) ).

thf(834,plain,
    ! [SV48: $i] :
      ( ( ( empty @ SV48 )
        = $false )
      | ( ( relation @ SV48 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[710]) ).

thf(835,plain,
    ! [SV51: $i] :
      ( ( ( relation @ SV51 )
        = $false )
      | ( ( ( relation_field @ SV51 )
          = ( set_union2 @ ( relation_dom @ SV51 ) @ ( relation_rng @ SV51 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[713]) ).

thf(836,plain,
    ! [SV52: $i] :
      ( ( ( relation @ SV52 )
        = $false )
      | ( ( relation @ ( relation_inverse @ SV52 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[714]) ).

thf(837,plain,
    ! [SV121: $i,SV53: $i] :
      ( ( ( ~ ( relation @ SV53 )
          | ~ ( relation @ SV121 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV53 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[715]) ).

thf(838,plain,
    ! [SV122: $i,SV55: $i] :
      ( ( empty @ ( ordered_pair @ SV55 @ SV122 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[717]) ).

thf(839,plain,
    ! [SV123: $i,SV56: $i] :
      ( ( ( ~ ( relation @ SV56 )
          | ~ ( relation @ SV123 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV56 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[718]) ).

thf(840,plain,
    ! [SV141: $i,SV58: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV58 @ SV141 ) ) )
        = $true )
      | ( ( empty @ SV58 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[720]) ).

thf(841,plain,
    ! [SV124: $i,SV59: $i] :
      ( ( empty @ ( unordered_pair @ SV59 @ SV124 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[721]) ).

thf(842,plain,
    ! [SV60: $i,SV142: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV142 @ SV60 ) ) )
        = $true )
      | ( ( empty @ SV60 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[722]) ).

thf(843,plain,
    ! [SV125: $i,SV61: $i] :
      ( ( ( ( empty @ SV61 )
          | ( empty @ SV125 ) )
        = $true )
      | ( ( ~ ( empty @ ( cartesian_product2 @ SV61 @ SV125 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[723]) ).

thf(844,plain,
    ! [SV64: $i] :
      ( ( ( relation @ SV64 )
        = $false )
      | ( ( ( relation_inverse @ ( relation_inverse @ SV64 ) )
          = SV64 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[724]) ).

thf(845,plain,
    ! [SV126: $i,SV66: $i] :
      ( ( ( ~ ( disjoint @ SV66 @ SV126 ) )
        = $true )
      | ( ( disjoint @ SV126 @ SV66 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[725]) ).

thf(846,plain,
    ! [SV127: $i,SV67: $i] :
      ( ( ( ~ ( in @ SV67 @ SV127 ) )
        = $true )
      | ( ( element @ SV67 @ SV127 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[726]) ).

thf(847,plain,
    ! [SV128: $i,SV68: $i] :
      ( ( ( ~ ( element @ SV68 @ SV128 ) )
        = $true )
      | ( ( ( empty @ SV128 )
          | ( in @ SV68 @ SV128 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[727]) ).

thf(848,plain,
    ! [SV69: $i,SV143: $i,SV129: $i] :
      ( ( ~ ( element @ SV129 @ ( powerset @ SV143 ) )
        | ~ ( in @ SV69 @ SV129 )
        | ( element @ SV69 @ SV143 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[728]) ).

thf(849,plain,
    ! [SV70: $i,SV144: $i,SV130: $i] :
      ( ( ~ ( element @ SV130 @ ( powerset @ SV144 ) )
        | ~ ( in @ SV70 @ SV130 )
        | ~ ( empty @ SV144 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[729]) ).

thf(850,plain,
    ! [SV71: $i,SV131: $i] :
      ( ( ( ~ ( empty @ SV131 ) )
        = $true )
      | ( ( ~ ( in @ SV71 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[730]) ).

thf(851,plain,
    ! [SV132: $i,SV72: $i] :
      ( ( ( ( SV72 = SV132 )
          | ~ ( empty @ SV72 ) )
        = $true )
      | ( ( ~ ( empty @ SV132 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[731]) ).

thf(852,plain,
    ! [SV73: $i] :
      ( ( ~ ! [SY352: $i,SY353: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                            | ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SV73 ) )
                        | ~ ( ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                            | ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY352 ) ) )
                  | ~ ( ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                      | ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SV73 )
                      | ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY352 ) ) )
              | ( SY353
                = ( set_union2 @ SV73 @ SY352 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[732]) ).

thf(853,plain,
    ! [SV73: $i] :
      ( ( ~ ! [SY354: $i,SY355: $i] :
              ( ( SY355
               != ( set_union2 @ SV73 @ SY354 ) )
              | ~ ( ~ ! [SY356: $i] :
                        ( ~ ( in @ SY356 @ SY355 )
                        | ( in @ SY356 @ SV73 )
                        | ( in @ SY356 @ SY354 ) )
                  | ~ ~ ( ~ ! [SY357: $i] :
                              ( ~ ( in @ SY357 @ SV73 )
                              | ( in @ SY357 @ SY355 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY354 )
                              | ( in @ SX3 @ SY355 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[732]) ).

thf(854,plain,
    ! [SV74: $i] :
      ( ( ~ ! [SY359: $i,SY360: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                            | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                             != SV74 ) )
                        | ~ ( ~ ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                            | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                             != SY359 ) ) )
                  | ~ ( ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                      | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                        = SV74 )
                      | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                        = SY359 ) ) )
              | ( SY360
                = ( unordered_pair @ SV74 @ SY359 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[733]) ).

thf(855,plain,
    ! [SV74: $i] :
      ( ( ~ ! [SY361: $i,SY362: $i] :
              ( ( SY362
               != ( unordered_pair @ SV74 @ SY361 ) )
              | ~ ( ~ ! [SY363: $i] :
                        ( ~ ( in @ SY363 @ SY362 )
                        | ( SY363 = SV74 )
                        | ( SY363 = SY361 ) )
                  | ~ ~ ( ~ ! [SY364: $i] :
                              ( ( SY364 != SV74 )
                              | ( in @ SY364 @ SY362 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY361 )
                              | ( in @ SX3 @ SY362 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[733]) ).

thf(856,plain,
    ! [SV75: $i] :
      ( ( ~ ! [SY366: $i,SY367: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SV75 )
                      | ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY366 )
                      | ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SV75 )
                            | ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) )
                        | ~ ( ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY366 )
                            | ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) ) ) )
              | ( SY367
                = ( set_intersection2 @ SV75 @ SY366 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[734]) ).

thf(857,plain,
    ! [SV75: $i] :
      ( ( ~ ! [SY368: $i,SY369: $i] :
              ( ( SY369
               != ( set_intersection2 @ SV75 @ SY368 ) )
              | ~ ( ~ ! [SY370: $i] :
                        ( ~ ( in @ SY370 @ SV75 )
                        | ~ ( in @ SY370 @ SY368 )
                        | ( in @ SY370 @ SY369 ) )
                  | ~ ~ ( ~ ! [SY371: $i] :
                              ( ~ ( in @ SY371 @ SY369 )
                              | ( in @ SY371 @ SV75 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY369 )
                              | ( in @ SX3 @ SY368 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[734]) ).

thf(858,plain,
    ! [SV76: $i] :
      ( ( ( relation @ SV76 )
        = $false )
      | ( ( ~ ( ~ ! [SY373: $i] :
                    ( ~ ( ~ ( ! [SY374: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ SY374 ) @ SV76 )
                            | ~ ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ ( sK21_SY278 @ SY373 @ SV76 ) ) @ SV76 )
                            | ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) ) )
                    | ( SY373
                      = ( relation_dom @ SV76 ) ) )
              | ~ ! [SY375: $i] :
                    ( ( SY375
                     != ( relation_dom @ SV76 ) )
                    | ~ ( ~ ! [SY376: $i] :
                              ( ! [SY377: $i] :
                                  ~ ( in @ ( ordered_pair @ SY376 @ SY377 ) @ SV76 )
                              | ( in @ SY376 @ SY375 ) )
                        | ~ ! [SY378: $i] :
                              ( ~ ( in @ SY378 @ SY375 )
                              | ( in @ ( ordered_pair @ SY378 @ ( sK19_D @ SY378 @ SY375 @ SV76 ) ) @ SV76 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[735]) ).

thf(859,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)],[736]) ).

thf(860,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)],[737]) ).

thf(861,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK37_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[738]) ).

thf(862,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[739]) ).

thf(863,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[740]) ).

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 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[741]) ).

thf(865,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK33_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[742]) ).

thf(866,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[743]) ).

thf(867,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_SY276 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK18_SY276 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[744]) ).

thf(868,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)],[745]) ).

thf(869,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_rng @ SX0 )
            = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[746]) ).

thf(870,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_dom @ SX0 )
            = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[747]) ).

thf(871,plain,
    ! [SV77: $i] :
      ( ( ( ~ ( element @ ( sK8_B @ SV77 ) @ ( powerset @ SV77 ) )
          | ~ ~ ( empty @ ( sK8_B @ SV77 ) ) )
        = $false )
      | ( ( empty @ SV77 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[748]) ).

thf(872,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[749]) ).

thf(873,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[750]) ).

thf(874,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[751]) ).

thf(875,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[752]) ).

thf(876,plain,
    ! [SV78: $i] :
      ( ( ( relation @ SV78 )
        = $false )
      | ( ( ~ ( ~ ! [SY379: $i] :
                    ( ~ ( relation @ SY379 )
                    | ~ ( subset @ SV78 @ SY379 )
                    | ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SY379 ) ) )
              | ~ ! [SY380: $i] :
                    ( ~ ( relation @ SY380 )
                    | ~ ( subset @ SV78 @ SY380 )
                    | ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SY380 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[753]) ).

thf(877,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY381: $i] :
              ( ~ ( subset @ SY381 @ ( sK35_B @ SV79 ) )
              | ( are_equipotent @ SY381 @ ( sK35_B @ SV79 ) )
              | ( in @ SY381 @ ( sK35_B @ SV79 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[754]) ).

thf(878,plain,
    ! [SV79: $i] :
      ( ( ~ ~ ( ~ ! [SY382: $i] :
                    ( ~ ( in @ SY382 @ ( sK35_B @ SV79 ) )
                    | ( in @ ( powerset @ SY382 ) @ ( sK35_B @ SV79 ) ) )
              | ~ ~ ( ~ ! [SY383: $i,SY384: $i] :
                          ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
                          | ~ ( subset @ SY384 @ SY383 )
                          | ( in @ SY384 @ ( sK35_B @ SV79 ) ) )
                    | ~ ( in @ SV79 @ ( sK35_B @ SV79 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[754]) ).

thf(879,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[755]) ).

thf(880,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[756]) ).

thf(881,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[757]) ).

thf(882,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)],[758]) ).

thf(883,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[759]) ).

thf(884,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[760]) ).

thf(885,plain,
    ! [SV80: $i,SV133: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV80 )
              | ~ ~ ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV133 ) ) )
        = $true )
      | ( ( element @ SV80 @ ( powerset @ SV133 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[761]) ).

thf(886,plain,
    ! [SV81: $i] :
      ( ( ~ ! [SY386: $i,SY387: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SV81 )
                      | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY386 )
                      | ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SV81 )
                            | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) )
                        | ~ ( ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY386 )
                            | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) ) ) )
              | ( SY387
                = ( set_difference @ SV81 @ SY386 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[762]) ).

thf(887,plain,
    ! [SV81: $i] :
      ( ( ~ ! [SY388: $i,SY389: $i] :
              ( ( SY389
               != ( set_difference @ SV81 @ SY388 ) )
              | ~ ( ~ ! [SY390: $i] :
                        ( ~ ( in @ SY390 @ SV81 )
                        | ( in @ SY390 @ SY388 )
                        | ( in @ SY390 @ SY389 ) )
                  | ~ ~ ( ~ ! [SY391: $i] :
                              ( ~ ( in @ SY391 @ SY389 )
                              | ( in @ SY391 @ SV81 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY389 )
                              | ~ ( in @ SX3 @ SY388 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[762]) ).

thf(888,plain,
    ! [SV82: $i] :
      ( ( ( relation @ SV82 )
        = $false )
      | ( ( ~ ( ~ ! [SY393: $i] :
                    ( ~ ( ~ ( ! [SY394: $i] :
                                ~ ( in @ ( ordered_pair @ SY394 @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                            | ~ ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY393 @ SV82 ) @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                            | ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) ) )
                    | ( SY393
                      = ( relation_rng @ SV82 ) ) )
              | ~ ! [SY395: $i] :
                    ( ( SY395
                     != ( relation_rng @ SV82 ) )
                    | ~ ( ~ ! [SY396: $i] :
                              ( ! [SY397: $i] :
                                  ~ ( in @ ( ordered_pair @ SY397 @ SY396 ) @ SV82 )
                              | ( in @ SY396 @ SY395 ) )
                        | ~ ! [SY398: $i] :
                              ( ~ ( in @ SY398 @ SY395 )
                              | ( in @ ( ordered_pair @ ( sK12_D @ SY398 @ SY395 @ SV82 ) @ SY398 ) @ SV82 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[763]) ).

thf(889,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
                  | ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) )
              | ~ ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
                  | ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) ) ) )
        = $true )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[764]) ).

thf(890,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                                | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX0 )
                                | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                            | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ SX2 @ ( sK38_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)],[765]) ).

thf(891,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)],[766]) ).

thf(892,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[767]) ).

thf(893,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)],[768]) ).

thf(894,plain,
    ! [SV84: $i] :
      ( ( ( relation @ SV84 )
        = $false )
      | ( ( ~ ( ~ ! [SY400: $i] :
                    ( ~ ( relation @ SY400 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                            | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                            | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) ) )
                    | ( SY400
                      = ( relation_inverse @ SV84 ) ) )
              | ~ ! [SY401: $i] :
                    ( ~ ( relation @ SY401 )
                    | ( SY401
                     != ( relation_inverse @ SV84 ) )
                    | ~ ( ~ ! [SY402: $i,SY403: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY402 @ SY403 ) @ SY401 )
                              | ( in @ ( ordered_pair @ SY403 @ SY402 ) @ SV84 ) )
                        | ~ ! [SY404: $i,SY405: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY405 @ SY404 ) @ SV84 )
                              | ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SY401 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[769]) ).

thf(895,plain,
    ! [SV85: $i] :
      ( ( ~ ! [SY406: $i] :
              ( ~ ( subset @ SY406 @ ( sK1_B @ SV85 ) )
              | ( are_equipotent @ SY406 @ ( sK1_B @ SV85 ) )
              | ( in @ SY406 @ ( sK1_B @ SV85 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[770]) ).

thf(896,plain,
    ! [SV85: $i] :
      ( ( ~ ~ ( ~ ! [SY407: $i] :
                    ( ~ ( ~ ! [SY408: $i] :
                              ( ~ ( subset @ SY408 @ SY407 )
                              | ( in @ SY408 @ ( sK2_SY267 @ SY407 @ SV85 ) ) )
                        | ~ ( in @ ( sK2_SY267 @ SY407 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
                    | ~ ( in @ SY407 @ ( sK1_B @ SV85 ) ) )
              | ~ ~ ( ~ ! [SY409: $i,SY410: $i] :
                          ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
                          | ~ ( subset @ SY410 @ SY409 )
                          | ( in @ SY410 @ ( sK1_B @ SV85 ) ) )
                    | ~ ( in @ SV85 @ ( sK1_B @ SV85 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[770]) ).

thf(897,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[771]) ).

thf(898,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[772]) ).

thf(899,plain,
    ! [SV86: $i] :
      ( ( ~ ( element @ ( sK5_B @ SV86 ) @ ( powerset @ SV86 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[773]) ).

thf(900,plain,
    ! [SV86: $i] :
      ( ( ~ ( empty @ ( sK5_B @ SV86 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[773]) ).

thf(901,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                    ( ( sK30_B @ SX0 )
                   != ( ordered_pair @ SX1 @ SX2 ) )
              | ~ ( in @ ( sK30_B @ SX0 ) @ SX0 ) )
          | ( relation @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[774]) ).

thf(902,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ( SX1
                = ( ordered_pair @ ( sK28_C @ SX1 @ SX0 ) @ ( sK29_SY279 @ SX1 @ SX0 ) ) )
              | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[775]) ).

thf(903,plain,
    ( ( ~ ( empty @ sK6_A ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[776]) ).

thf(904,plain,
    ( ( relation @ sK6_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[777]) ).

thf(905,plain,
    ! [SV87: $i] :
      ( ( ~ ! [SY411: $i] :
              ( ~ ( subset @ SV87 @ SY411 )
              | ! [SY412: $i] : ( subset @ ( cartesian_product2 @ SV87 @ SY412 ) @ ( cartesian_product2 @ SY411 @ SY412 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[778]) ).

thf(906,plain,
    ! [SV87: $i] :
      ( ( ~ ! [SY413: $i] :
              ( ~ ( subset @ SV87 @ SY413 )
              | ! [SY414: $i] : ( subset @ ( cartesian_product2 @ SY414 @ SV87 ) @ ( cartesian_product2 @ SY414 @ SY413 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[778]) ).

thf(907,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[779]) ).

thf(908,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[780]) ).

thf(909,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[781]) ).

thf(910,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[782]) ).

thf(911,plain,
    ( ( empty @ sK9_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[783]) ).

thf(912,plain,
    ( ( relation @ sK9_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[784]) ).

thf(913,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[785]) ).

thf(914,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)],[786]) ).

thf(915,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[787]) ).

thf(916,plain,
    ( ( relation @ empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[788]) ).

thf(917,plain,
    ! [SV88: $i] :
      ( ( ~ ! [SY415: $i,SY416: $i] :
              ( ~ ( in @ SV88 @ SY416 )
              | ~ ( in @ SY415 @ SY416 )
              | ( subset @ ( unordered_pair @ SV88 @ SY415 ) @ SY416 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[789]) ).

thf(918,plain,
    ! [SV88: $i] :
      ( ( ~ ~ ( ~ ! [SY417: $i,SY418: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV88 @ SY417 ) @ SY418 )
                    | ( in @ SV88 @ SY418 ) )
              | ~ ! [SY419: $i,SY420: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV88 @ SY419 ) @ SY420 )
                    | ( in @ SY419 @ SY420 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[789]) ).

thf(919,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[790]) ).

thf(920,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[791]) ).

thf(921,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[792]) ).

thf(922,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)],[793]) ).

thf(923,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[794]) ).

thf(924,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[795]) ).

thf(925,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[796]) ).

thf(926,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[797]) ).

thf(927,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK27_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK27_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[798]) ).

thf(928,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)],[799]) ).

thf(929,plain,
    ! [SV89: $i] :
      ( ( ~ ! [SY421: $i,SY422: $i] :
              ( ~ ( relation @ SY422 )
              | ~ ( in @ ( ordered_pair @ SV89 @ SY421 ) @ SY422 )
              | ( in @ SV89 @ ( relation_dom @ SY422 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[800]) ).

thf(930,plain,
    ! [SV89: $i] :
      ( ( ~ ! [SY423: $i,SY424: $i] :
              ( ~ ( relation @ SY424 )
              | ~ ( in @ ( ordered_pair @ SV89 @ SY423 ) @ SY424 )
              | ( in @ SY423 @ ( relation_rng @ SY424 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[800]) ).

thf(931,plain,
    ! [SV4: $i] :
      ( ( ( relation @ SV4 )
        = $false )
      | ( ( empty @ SV4 )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV4 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[802]) ).

thf(932,plain,
    ! [SV5: $i] :
      ( ( ( relation @ SV5 )
        = $false )
      | ( ( empty @ SV5 )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV5 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[803]) ).

thf(933,plain,
    ! [SV90: $i,SV11: $i] :
      ( ( ( in @ SV11 @ SV90 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV11 ) @ SV90 )
          = SV90 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[805]) ).

thf(934,plain,
    ! [SV91: $i,SV12: $i] :
      ( ( ( disjoint @ ( singleton @ SV12 ) @ SV91 )
        = $false )
      | ( ( ~ ( in @ SV12 @ SV91 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[806]) ).

thf(935,plain,
    ! [SV14: $i,SV93: $i] :
      ( ( ( element @ SV93 @ ( powerset @ SV14 ) )
        = $false )
      | ( ( ! [SY425: $i] :
              ( ~ ( in @ SY425 @ SV93 )
              | ( in @ SY425 @ SV14 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[808]) ).

thf(936,plain,
    ! [SV94: $i,SV15: $i] :
      ( ( ( subset @ SV15 @ SV94 )
        = $false )
      | ( ( ! [SY426: $i] :
              ( ( in @ SY426 @ SV15 )
              | ( subset @ SV15 @ ( set_difference @ SV94 @ ( singleton @ SY426 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[809]) ).

thf(937,plain,
    ! [SV95: $i,SV16: $i] :
      ( ( ( in @ SV16 @ SV95 )
        = $false )
      | ( ( subset @ SV16 @ ( union @ SV95 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[810]) ).

thf(938,plain,
    ! [SV145: $i,SV135: $i,SV96: $i,SV17: $i] :
      ( ( ~ ( subset @ SV17 @ SV96 )
        | ~ ( subset @ SV135 @ SV145 )
        | ( subset @ ( cartesian_product2 @ SV17 @ SV135 ) @ ( cartesian_product2 @ SV96 @ SV145 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[811]) ).

thf(939,plain,
    ! [SV97: $i,SV18: $i] :
      ( ( ( subset @ SV18 @ SV97 )
        = $false )
      | ( ( ( set_union2 @ SV18 @ SV97 )
          = SV97 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[812]) ).

thf(940,plain,
    ! [SV136: $i,SV99: $i,SV20: $i] :
      ( ( ( ~ ( subset @ SV20 @ SV99 )
          | ~ ( subset @ SV20 @ SV136 ) )
        = $true )
      | ( ( subset @ SV20 @ ( set_intersection2 @ SV99 @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[813]) ).

thf(941,plain,
    ! [SV137: $i,SV100: $i,SV21: $i] :
      ( ( ( ~ ( subset @ SV21 @ SV100 )
          | ~ ( subset @ SV100 @ SV137 ) )
        = $true )
      | ( ( subset @ SV21 @ SV137 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[814]) ).

thf(942,plain,
    ! [SV101: $i,SV23: $i] :
      ( ( ( subset @ SV23 @ SV101 )
        = $false )
      | ( ( ! [SY431: $i] : ( subset @ ( set_intersection2 @ SV23 @ SY431 ) @ ( set_intersection2 @ SV101 @ SY431 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[816]) ).

thf(943,plain,
    ! [SV102: $i,SV24: $i] :
      ( ( ( subset @ SV24 @ SV102 )
        = $false )
      | ( ( ( set_intersection2 @ SV24 @ SV102 )
          = SV24 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[817]) ).

thf(944,plain,
    ! [SV103: $i,SV25: $i] :
      ( ( ( subset @ SV25 @ SV103 )
        = $false )
      | ( ( ! [SY432: $i] : ( subset @ ( set_difference @ SV25 @ SY432 ) @ ( set_difference @ SV103 @ SY432 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[818]) ).

thf(945,plain,
    ! [SV29: $i,SV146: $i] :
      ( ( ( ~ ( relation @ SV146 )
          | ( subset @ ( relation_dom @ ( relation_composition @ SV29 @ SV146 ) ) @ ( relation_dom @ SV29 ) ) )
        = $true )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[819]) ).

thf(946,plain,
    ! [SV30: $i,SV147: $i] :
      ( ( ( ~ ( relation @ SV147 )
          | ( subset @ ( relation_rng @ ( relation_composition @ SV30 @ SV147 ) ) @ ( relation_rng @ SV147 ) ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[820]) ).

thf(947,plain,
    ! [SV107: $i,SV31: $i] :
      ( ( ( subset @ SV31 @ SV107 )
        = $false )
      | ( ( SV107
          = ( set_union2 @ SV31 @ ( set_difference @ SV107 @ SV31 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[821]) ).

thf(948,plain,
    ! [SV32: $i,SV148: $i] :
      ( ( ( ~ ( relation @ SV148 )
          | ~ ( subset @ ( relation_rng @ SV32 ) @ ( relation_dom @ SV148 ) )
          | ( ( relation_dom @ ( relation_composition @ SV32 @ SV148 ) )
            = ( relation_dom @ SV32 ) ) )
        = $true )
      | ( ( relation @ SV32 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[822]) ).

thf(949,plain,
    ! [SV108: $i,SV33: $i] :
      ( ( ( in @ SV33 @ SV108 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV33 ) @ SV108 )
          = SV108 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[823]) ).

thf(950,plain,
    ! [SV34: $i,SV149: $i] :
      ( ( ( ~ ( relation @ SV149 )
          | ~ ( subset @ ( relation_dom @ SV34 ) @ ( relation_rng @ SV149 ) )
          | ( ( relation_rng @ ( relation_composition @ SV149 @ SV34 ) )
            = ( relation_rng @ SV34 ) ) )
        = $true )
      | ( ( relation @ SV34 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[824]) ).

thf(951,plain,
    ! [SV36: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK31_B @ SV36 ) @ ( sK32_SY282 @ SV36 ) ) @ SV36 )
        = $true )
      | ( ( SV36 = empty_set )
        = $true )
      | ( ( relation @ SV36 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[825]) ).

thf(952,plain,
    ! [SV37: $i,SV110: $i] :
      ( ( ( proper_subset @ SV110 @ SV37 )
        = $false )
      | ( ( ~ ( subset @ SV37 @ SV110 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[826]) ).

thf(953,plain,
    ! [SV38: $i,SV138: $i,SV111: $i] :
      ( ( ( ~ ( disjoint @ SV111 @ SV138 )
          | ~ ( subset @ SV38 @ SV111 ) )
        = $true )
      | ( ( disjoint @ SV38 @ SV138 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[827]) ).

thf(954,plain,
    ! [SV112: $i,SV40: $i] :
      ( ( ( subset @ ( singleton @ SV40 ) @ ( singleton @ SV112 ) )
        = $false )
      | ( ( SV40 = SV112 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[828]) ).

thf(955,plain,
    ! [SV139: $i,SV114: $i,SV42: $i] :
      ( ( ( ~ ( subset @ SV42 @ SV114 )
          | ~ ( subset @ SV139 @ SV114 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV42 @ SV139 ) @ SV114 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[829]) ).

thf(956,plain,
    ! [SV150: $i,SV115: $i,SV43: $i] :
      ( ( ( ( ( singleton @ SV43 )
           != ( unordered_pair @ SV115 @ SV150 ) ) )
        = $true )
      | ( ( SV43 = SV115 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[830]) ).

thf(957,plain,
    ! [SV116: $i,SV44: $i] :
      ( ( ( in @ SV44 @ SV116 )
        = $false )
      | ( ( subset @ SV44 @ ( union @ SV116 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[831]) ).

thf(958,plain,
    ! [SV140: $i,SV117: $i,SV46: $i] :
      ( ( ( ( ( singleton @ SV46 )
           != ( unordered_pair @ SV117 @ SV140 ) ) )
        = $true )
      | ( ( SV117 = SV140 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[832]) ).

thf(959,plain,
    ! [SV118: $i,SV47: $i] :
      ( ( ( in @ SV47 @ SV118 )
        = $false )
      | ( ( ~ ( in @ SV118 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[833]) ).

thf(960,plain,
    ! [SV121: $i,SV53: $i] :
      ( ( ( ~ ( relation @ SV53 ) )
        = $true )
      | ( ( ~ ( relation @ SV121 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV53 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[837]) ).

thf(961,plain,
    ! [SV123: $i,SV56: $i] :
      ( ( ( ~ ( relation @ SV56 ) )
        = $true )
      | ( ( ~ ( relation @ SV123 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV56 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[839]) ).

thf(962,plain,
    ! [SV141: $i,SV58: $i] :
      ( ( ( empty @ ( set_union2 @ SV58 @ SV141 ) )
        = $false )
      | ( ( empty @ SV58 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[840]) ).

thf(963,plain,
    ! [SV60: $i,SV142: $i] :
      ( ( ( empty @ ( set_union2 @ SV142 @ SV60 ) )
        = $false )
      | ( ( empty @ SV60 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[842]) ).

thf(964,plain,
    ! [SV125: $i,SV61: $i] :
      ( ( ( empty @ SV61 )
        = $true )
      | ( ( empty @ SV125 )
        = $true )
      | ( ( ~ ( empty @ ( cartesian_product2 @ SV61 @ SV125 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[843]) ).

thf(965,plain,
    ! [SV126: $i,SV66: $i] :
      ( ( ( disjoint @ SV66 @ SV126 )
        = $false )
      | ( ( disjoint @ SV126 @ SV66 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[845]) ).

thf(966,plain,
    ! [SV127: $i,SV67: $i] :
      ( ( ( in @ SV67 @ SV127 )
        = $false )
      | ( ( element @ SV67 @ SV127 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[846]) ).

thf(967,plain,
    ! [SV128: $i,SV68: $i] :
      ( ( ( element @ SV68 @ SV128 )
        = $false )
      | ( ( ( empty @ SV128 )
          | ( in @ SV68 @ SV128 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[847]) ).

thf(968,plain,
    ! [SV69: $i,SV143: $i,SV129: $i] :
      ( ( ( ~ ( element @ SV129 @ ( powerset @ SV143 ) )
          | ~ ( in @ SV69 @ SV129 ) )
        = $true )
      | ( ( element @ SV69 @ SV143 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[848]) ).

thf(969,plain,
    ! [SV70: $i,SV144: $i,SV130: $i] :
      ( ( ( ~ ( element @ SV130 @ ( powerset @ SV144 ) )
          | ~ ( in @ SV70 @ SV130 ) )
        = $true )
      | ( ( ~ ( empty @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[849]) ).

thf(970,plain,
    ! [SV71: $i,SV131: $i] :
      ( ( ( empty @ SV131 )
        = $false )
      | ( ( ~ ( in @ SV71 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[850]) ).

thf(971,plain,
    ! [SV132: $i,SV72: $i] :
      ( ( ( SV72 = SV132 )
        = $true )
      | ( ( ~ ( empty @ SV72 ) )
        = $true )
      | ( ( ~ ( empty @ SV132 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[851]) ).

thf(972,plain,
    ! [SV73: $i] :
      ( ( ! [SY352: $i,SY353: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                          | ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SV73 ) )
                      | ~ ( ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                          | ~ ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY352 ) ) )
                | ~ ( ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY353 )
                    | ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SV73 )
                    | ( in @ ( sK24_D @ SY353 @ SY352 @ SV73 ) @ SY352 ) ) )
            | ( SY353
              = ( set_union2 @ SV73 @ SY352 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[852]) ).

thf(973,plain,
    ! [SV73: $i] :
      ( ( ! [SY354: $i,SY355: $i] :
            ( ( SY355
             != ( set_union2 @ SV73 @ SY354 ) )
            | ~ ( ~ ! [SY356: $i] :
                      ( ~ ( in @ SY356 @ SY355 )
                      | ( in @ SY356 @ SV73 )
                      | ( in @ SY356 @ SY354 ) )
                | ~ ~ ( ~ ! [SY357: $i] :
                            ( ~ ( in @ SY357 @ SV73 )
                            | ( in @ SY357 @ SY355 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY354 )
                            | ( in @ SX3 @ SY355 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[853]) ).

thf(974,plain,
    ! [SV74: $i] :
      ( ( ! [SY359: $i,SY360: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                          | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                           != SV74 ) )
                      | ~ ( ~ ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                          | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                           != SY359 ) ) )
                | ~ ( ( in @ ( sK25_D @ SY360 @ SY359 @ SV74 ) @ SY360 )
                    | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                      = SV74 )
                    | ( ( sK25_D @ SY360 @ SY359 @ SV74 )
                      = SY359 ) ) )
            | ( SY360
              = ( unordered_pair @ SV74 @ SY359 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[854]) ).

thf(975,plain,
    ! [SV74: $i] :
      ( ( ! [SY361: $i,SY362: $i] :
            ( ( SY362
             != ( unordered_pair @ SV74 @ SY361 ) )
            | ~ ( ~ ! [SY363: $i] :
                      ( ~ ( in @ SY363 @ SY362 )
                      | ( SY363 = SV74 )
                      | ( SY363 = SY361 ) )
                | ~ ~ ( ~ ! [SY364: $i] :
                            ( ( SY364 != SV74 )
                            | ( in @ SY364 @ SY362 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY361 )
                            | ( in @ SX3 @ SY362 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[855]) ).

thf(976,plain,
    ! [SV75: $i] :
      ( ( ! [SY366: $i,SY367: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SV75 )
                    | ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY366 )
                    | ~ ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) )
                | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SV75 )
                          | ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) )
                      | ~ ( ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY366 )
                          | ( in @ ( sK22_D @ SY367 @ SY366 @ SV75 ) @ SY367 ) ) ) )
            | ( SY367
              = ( set_intersection2 @ SV75 @ SY366 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[856]) ).

thf(977,plain,
    ! [SV75: $i] :
      ( ( ! [SY368: $i,SY369: $i] :
            ( ( SY369
             != ( set_intersection2 @ SV75 @ SY368 ) )
            | ~ ( ~ ! [SY370: $i] :
                      ( ~ ( in @ SY370 @ SV75 )
                      | ~ ( in @ SY370 @ SY368 )
                      | ( in @ SY370 @ SY369 ) )
                | ~ ~ ( ~ ! [SY371: $i] :
                            ( ~ ( in @ SY371 @ SY369 )
                            | ( in @ SY371 @ SV75 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY369 )
                            | ( in @ SX3 @ SY368 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[857]) ).

thf(978,plain,
    ! [SV76: $i] :
      ( ( ( ~ ! [SY373: $i] :
                ( ~ ( ~ ( ! [SY374: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ SY374 ) @ SV76 )
                        | ~ ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ ( sK21_SY278 @ SY373 @ SV76 ) ) @ SV76 )
                        | ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) ) )
                | ( SY373
                  = ( relation_dom @ SV76 ) ) )
          | ~ ! [SY375: $i] :
                ( ( SY375
                 != ( relation_dom @ SV76 ) )
                | ~ ( ~ ! [SY376: $i] :
                          ( ! [SY377: $i] :
                              ~ ( in @ ( ordered_pair @ SY376 @ SY377 ) @ SV76 )
                          | ( in @ SY376 @ SY375 ) )
                    | ~ ! [SY378: $i] :
                          ( ~ ( in @ SY378 @ SY375 )
                          | ( in @ ( ordered_pair @ SY378 @ ( sK19_D @ SY378 @ SY375 @ SV76 ) ) @ SV76 ) ) ) ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[858]) ).

thf(979,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)],[859]) ).

thf(980,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)],[860]) ).

thf(981,plain,
    ! [SV151: $i] :
      ( ( ( in @ ( sK37_B @ SV151 ) @ SV151 )
        | ( SV151 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[861]) ).

thf(982,plain,
    ! [SV152: $i] :
      ( ( ( SV152 != empty_set )
        | ! [SY440: $i] :
            ~ ( in @ SY440 @ SV152 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[862]) ).

thf(983,plain,
    ! [SV153: $i] :
      ( ( ! [SY441: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SY441 @ SV153 ) @ SY441 )
                    | ~ ( subset @ ( sK26_C @ SY441 @ SV153 ) @ SV153 ) )
                | ~ ( ( in @ ( sK26_C @ SY441 @ SV153 ) @ SY441 )
                    | ( subset @ ( sK26_C @ SY441 @ SV153 ) @ SV153 ) ) )
            | ( SY441
              = ( powerset @ SV153 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[863]) ).

thf(984,plain,
    ! [SV154: $i] :
      ( ( ! [SY442: $i] :
            ( ( SY442
             != ( powerset @ SV154 ) )
            | ~ ( ~ ! [SY443: $i] :
                      ( ~ ( in @ SY443 @ SY442 )
                      | ( subset @ SY443 @ SV154 ) )
                | ~ ! [SY444: $i] :
                      ( ~ ( subset @ SY444 @ SV154 )
                      | ( in @ SY444 @ SY442 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[864]) ).

thf(985,plain,
    ! [SV155: $i] :
      ( ( ! [SY445: $i] :
            ( ( disjoint @ SV155 @ SY445 )
            | ( in @ ( sK33_C @ SY445 @ SV155 ) @ ( set_intersection2 @ SV155 @ SY445 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[865]) ).

thf(986,plain,
    ! [SV156: $i] :
      ( ( ! [SY446: $i] :
            ( ! [SY447: $i] :
                ~ ( in @ SY447 @ ( set_intersection2 @ SV156 @ SY446 ) )
            | ~ ( disjoint @ SV156 @ SY446 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[866]) ).

thf(987,plain,
    ! [SV157: $i] :
      ( ( ! [SY448: $i] :
            ( ~ ( ~ ( ! [SY449: $i] :
                        ( ~ ( in @ ( sK17_C @ SY448 @ SV157 ) @ SY449 )
                        | ~ ( in @ SY449 @ SV157 ) )
                    | ~ ( in @ ( sK17_C @ SY448 @ SV157 ) @ SY448 ) )
                | ~ ( ~ ( ~ ( in @ ( sK17_C @ SY448 @ SV157 ) @ ( sK18_SY276 @ SY448 @ SV157 ) )
                        | ~ ( in @ ( sK18_SY276 @ SY448 @ SV157 ) @ SV157 ) )
                    | ( in @ ( sK17_C @ SY448 @ SV157 ) @ SY448 ) ) )
            | ( SY448
              = ( union @ SV157 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[867]) ).

thf(988,plain,
    ! [SV158: $i] :
      ( ( ! [SY450: $i] :
            ( ( SY450
             != ( union @ SV158 ) )
            | ~ ( ~ ! [SY451: $i] :
                      ( ! [SY452: $i] :
                          ( ~ ( in @ SY451 @ SY452 )
                          | ~ ( in @ SY452 @ SV158 ) )
                      | ( in @ SY451 @ SY450 ) )
                | ~ ! [SY453: $i] :
                      ( ~ ( in @ SY453 @ SY450 )
                      | ~ ( ~ ( in @ SY453 @ ( sK16_D @ SY453 @ SY450 @ SV158 ) )
                          | ~ ( in @ ( sK16_D @ SY453 @ SY450 @ SV158 ) @ SV158 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[868]) ).

thf(989,plain,
    ! [SV159: $i] :
      ( ( ~ ( relation @ SV159 )
        | ( ( relation_rng @ SV159 )
          = ( relation_dom @ ( relation_inverse @ SV159 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[869]) ).

thf(990,plain,
    ! [SV160: $i] :
      ( ( ~ ( relation @ SV160 )
        | ( ( relation_dom @ SV160 )
          = ( relation_rng @ ( relation_inverse @ SV160 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[870]) ).

thf(991,plain,
    ! [SV77: $i] :
      ( ( ( ~ ( element @ ( sK8_B @ SV77 ) @ ( powerset @ SV77 ) ) )
        = $false )
      | ( ( empty @ SV77 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[871]) ).

thf(992,plain,
    ! [SV77: $i] :
      ( ( ( ~ ~ ( empty @ ( sK8_B @ SV77 ) ) )
        = $false )
      | ( ( empty @ SV77 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[871]) ).

thf(993,plain,
    ! [SV161: $i] :
      ( ( ! [SY454: $i] :
            ( ( disjoint @ SV161 @ SY454 )
            | ~ ( ~ ( in @ ( sK34_C @ SY454 @ SV161 ) @ SV161 )
                | ~ ( in @ ( sK34_C @ SY454 @ SV161 ) @ SY454 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[872]) ).

thf(994,plain,
    ! [SV162: $i] :
      ( ( ! [SY455: $i] :
            ( ! [SY456: $i] :
                ( ~ ( in @ SY456 @ SV162 )
                | ~ ( in @ SY456 @ SY455 ) )
            | ~ ( disjoint @ SV162 @ SY455 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[873]) ).

thf(995,plain,
    ! [SV163: $i] :
      ( ( ! [SY457: $i] :
            ( ( ( set_difference @ SV163 @ SY457 )
             != empty_set )
            | ( subset @ SV163 @ SY457 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[874]) ).

thf(996,plain,
    ! [SV164: $i] :
      ( ( ! [SY458: $i] :
            ( ~ ( subset @ SV164 @ SY458 )
            | ( ( set_difference @ SV164 @ SY458 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[875]) ).

thf(997,plain,
    ! [SV78: $i] :
      ( ( ( ~ ! [SY379: $i] :
                ( ~ ( relation @ SY379 )
                | ~ ( subset @ SV78 @ SY379 )
                | ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SY379 ) ) )
          | ~ ! [SY380: $i] :
                ( ~ ( relation @ SY380 )
                | ~ ( subset @ SV78 @ SY380 )
                | ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SY380 ) ) ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[876]) ).

thf(998,plain,
    ! [SV79: $i] :
      ( ( ! [SY381: $i] :
            ( ~ ( subset @ SY381 @ ( sK35_B @ SV79 ) )
            | ( are_equipotent @ SY381 @ ( sK35_B @ SV79 ) )
            | ( in @ SY381 @ ( sK35_B @ SV79 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[877]) ).

thf(999,plain,
    ! [SV79: $i] :
      ( ( ~ ( ~ ! [SY382: $i] :
                  ( ~ ( in @ SY382 @ ( sK35_B @ SV79 ) )
                  | ( in @ ( powerset @ SY382 ) @ ( sK35_B @ SV79 ) ) )
            | ~ ~ ( ~ ! [SY383: $i,SY384: $i] :
                        ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
                        | ~ ( subset @ SY384 @ SY383 )
                        | ( in @ SY384 @ ( sK35_B @ SV79 ) ) )
                  | ~ ( in @ SV79 @ ( sK35_B @ SV79 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[878]) ).

thf(1000,plain,
    ! [SV165: $i] :
      ( ( ! [SY459: $i] :
            ( ~ ( element @ SV165 @ ( powerset @ SY459 ) )
            | ( subset @ SV165 @ SY459 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[879]) ).

thf(1001,plain,
    ! [SV166: $i] :
      ( ( ! [SY460: $i] :
            ( ~ ( subset @ SV166 @ SY460 )
            | ( element @ SV166 @ ( powerset @ SY460 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[880]) ).

thf(1002,plain,
    ! [SV167: $i] :
      ( ( ! [SY461: $i] :
            ( ~ ( subset @ SV167 @ SY461 )
            | ~ ( subset @ SY461 @ SV167 )
            | ( SV167 = SY461 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[881]) ).

thf(1003,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)],[882]) ).

thf(1004,plain,
    ! [SV168: $i] :
      ( ( ! [SY462: $i] :
            ( ( ( set_intersection2 @ SV168 @ SY462 )
             != empty_set )
            | ( disjoint @ SV168 @ SY462 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[883]) ).

thf(1005,plain,
    ! [SV169: $i] :
      ( ( ! [SY463: $i] :
            ( ~ ( disjoint @ SV169 @ SY463 )
            | ( ( set_intersection2 @ SV169 @ SY463 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[884]) ).

thf(1006,plain,
    ! [SV80: $i,SV133: $i] :
      ( ( ( ~ ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV80 )
          | ~ ~ ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV133 ) )
        = $false )
      | ( ( element @ SV80 @ ( powerset @ SV133 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[885]) ).

thf(1007,plain,
    ! [SV81: $i] :
      ( ( ! [SY386: $i,SY387: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SV81 )
                    | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY386 )
                    | ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) )
                | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SV81 )
                          | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) )
                      | ~ ( ~ ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY386 )
                          | ( in @ ( sK15_D @ SY387 @ SY386 @ SV81 ) @ SY387 ) ) ) )
            | ( SY387
              = ( set_difference @ SV81 @ SY386 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[886]) ).

thf(1008,plain,
    ! [SV81: $i] :
      ( ( ! [SY388: $i,SY389: $i] :
            ( ( SY389
             != ( set_difference @ SV81 @ SY388 ) )
            | ~ ( ~ ! [SY390: $i] :
                      ( ~ ( in @ SY390 @ SV81 )
                      | ( in @ SY390 @ SY388 )
                      | ( in @ SY390 @ SY389 ) )
                | ~ ~ ( ~ ! [SY391: $i] :
                            ( ~ ( in @ SY391 @ SY389 )
                            | ( in @ SY391 @ SV81 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY389 )
                            | ~ ( in @ SX3 @ SY388 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[887]) ).

thf(1009,plain,
    ! [SV82: $i] :
      ( ( ( ~ ! [SY393: $i] :
                ( ~ ( ~ ( ! [SY394: $i] :
                            ~ ( in @ ( ordered_pair @ SY394 @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                        | ~ ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY393 @ SV82 ) @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                        | ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) ) )
                | ( SY393
                  = ( relation_rng @ SV82 ) ) )
          | ~ ! [SY395: $i] :
                ( ( SY395
                 != ( relation_rng @ SV82 ) )
                | ~ ( ~ ! [SY396: $i] :
                          ( ! [SY397: $i] :
                              ~ ( in @ ( ordered_pair @ SY397 @ SY396 ) @ SV82 )
                          | ( in @ SY396 @ SY395 ) )
                    | ~ ! [SY398: $i] :
                          ( ~ ( in @ SY398 @ SY395 )
                          | ( in @ ( ordered_pair @ ( sK12_D @ SY398 @ SY395 @ SV82 ) @ SY398 ) @ SV82 ) ) ) ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[888]) ).

thf(1010,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
              | ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) )
          | ~ ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
              | ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) ) )
        = $false )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[889]) ).

thf(1011,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK38_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)],[890]) ).

thf(1012,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)],[891]) ).

thf(1013,plain,
    ! [SV170: $i] :
      ( ( ! [SY464: $i] :
            ( ( SV170 = SY464 )
            | ~ ( subset @ SV170 @ SY464 )
            | ( proper_subset @ SV170 @ SY464 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[892]) ).

thf(1014,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)],[893]) ).

thf(1015,plain,
    ! [SV84: $i] :
      ( ( ( ~ ! [SY400: $i] :
                ( ~ ( relation @ SY400 )
                | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                        | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                        | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) ) )
                | ( SY400
                  = ( relation_inverse @ SV84 ) ) )
          | ~ ! [SY401: $i] :
                ( ~ ( relation @ SY401 )
                | ( SY401
                 != ( relation_inverse @ SV84 ) )
                | ~ ( ~ ! [SY402: $i,SY403: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY402 @ SY403 ) @ SY401 )
                          | ( in @ ( ordered_pair @ SY403 @ SY402 ) @ SV84 ) )
                    | ~ ! [SY404: $i,SY405: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY405 @ SY404 ) @ SV84 )
                          | ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SY401 ) ) ) ) )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[894]) ).

thf(1016,plain,
    ! [SV85: $i] :
      ( ( ! [SY406: $i] :
            ( ~ ( subset @ SY406 @ ( sK1_B @ SV85 ) )
            | ( are_equipotent @ SY406 @ ( sK1_B @ SV85 ) )
            | ( in @ SY406 @ ( sK1_B @ SV85 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[895]) ).

thf(1017,plain,
    ! [SV85: $i] :
      ( ( ~ ( ~ ! [SY407: $i] :
                  ( ~ ( ~ ! [SY408: $i] :
                            ( ~ ( subset @ SY408 @ SY407 )
                            | ( in @ SY408 @ ( sK2_SY267 @ SY407 @ SV85 ) ) )
                      | ~ ( in @ ( sK2_SY267 @ SY407 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
                  | ~ ( in @ SY407 @ ( sK1_B @ SV85 ) ) )
            | ~ ~ ( ~ ! [SY409: $i,SY410: $i] :
                        ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
                        | ~ ( subset @ SY410 @ SY409 )
                        | ( in @ SY410 @ ( sK1_B @ SV85 ) ) )
                  | ~ ( in @ SV85 @ ( sK1_B @ SV85 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[896]) ).

thf(1018,plain,
    ! [SV171: $i] :
      ( ( ! [SY465: $i] :
            ( ( ( set_difference @ SV171 @ SY465 )
             != SV171 )
            | ( disjoint @ SV171 @ SY465 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[897]) ).

thf(1019,plain,
    ! [SV172: $i] :
      ( ( ! [SY466: $i] :
            ( ~ ( disjoint @ SV172 @ SY466 )
            | ( ( set_difference @ SV172 @ SY466 )
              = SV172 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[898]) ).

thf(1020,plain,
    ! [SV86: $i] :
      ( ( element @ ( sK5_B @ SV86 ) @ ( powerset @ SV86 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[899]) ).

thf(1021,plain,
    ! [SV86: $i] :
      ( ( empty @ ( sK5_B @ SV86 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[900]) ).

thf(1022,plain,
    ! [SV173: $i] :
      ( ( ~ ( ~ ! [SY467: $i,SY468: $i] :
                  ( ( sK30_B @ SV173 )
                 != ( ordered_pair @ SY467 @ SY468 ) )
            | ~ ( in @ ( sK30_B @ SV173 ) @ SV173 ) )
        | ( relation @ SV173 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[901]) ).

thf(1023,plain,
    ! [SV174: $i] :
      ( ( ~ ( relation @ SV174 )
        | ! [SY469: $i] :
            ( ( SY469
              = ( ordered_pair @ ( sK28_C @ SY469 @ SV174 ) @ ( sK29_SY279 @ SY469 @ SV174 ) ) )
            | ~ ( in @ SY469 @ SV174 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[902]) ).

thf(1024,plain,
    ( ( empty @ sK6_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[903]) ).

thf(1025,plain,
    ! [SV87: $i] :
      ( ( ! [SY411: $i] :
            ( ~ ( subset @ SV87 @ SY411 )
            | ! [SY412: $i] : ( subset @ ( cartesian_product2 @ SV87 @ SY412 ) @ ( cartesian_product2 @ SY411 @ SY412 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[905]) ).

thf(1026,plain,
    ! [SV87: $i] :
      ( ( ! [SY413: $i] :
            ( ~ ( subset @ SV87 @ SY413 )
            | ! [SY414: $i] : ( subset @ ( cartesian_product2 @ SY414 @ SV87 ) @ ( cartesian_product2 @ SY414 @ SY413 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[906]) ).

thf(1027,plain,
    ! [SV175: $i] :
      ( ( ! [SY470: $i] :
            ( ~ ( in @ SV175 @ SY470 )
            | ( subset @ ( singleton @ SV175 ) @ SY470 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[907]) ).

thf(1028,plain,
    ! [SV176: $i] :
      ( ( ! [SY471: $i] :
            ( ~ ( subset @ ( singleton @ SV176 ) @ SY471 )
            | ( in @ SV176 @ SY471 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[908]) ).

thf(1029,plain,
    ! [SV177: $i] :
      ( ( ! [SY472: $i] :
            ( ~ ( ~ ( in @ ( sK23_C @ SY472 @ SV177 ) @ SV177 )
                | ~ ~ ( in @ ( sK23_C @ SY472 @ SV177 ) @ SY472 ) )
            | ( subset @ SV177 @ SY472 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[909]) ).

thf(1030,plain,
    ! [SV178: $i] :
      ( ( ! [SY473: $i] :
            ( ~ ( subset @ SV178 @ SY473 )
            | ! [SY474: $i] :
                ( ~ ( in @ SY474 @ SV178 )
                | ( in @ SY474 @ SY473 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[910]) ).

thf(1031,plain,
    ! [SV179: $i] :
      ( ( ! [SY475: $i] :
            ( ~ ( subset @ SV179 @ ( singleton @ SY475 ) )
            | ( SV179 = empty_set )
            | ( SV179
              = ( singleton @ SY475 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[913]) ).

thf(1032,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)],[914]) ).

thf(1033,plain,
    ! [SV88: $i] :
      ( ( ! [SY415: $i,SY416: $i] :
            ( ~ ( in @ SV88 @ SY416 )
            | ~ ( in @ SY415 @ SY416 )
            | ( subset @ ( unordered_pair @ SV88 @ SY415 ) @ SY416 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[917]) ).

thf(1034,plain,
    ! [SV88: $i] :
      ( ( ~ ( ~ ! [SY417: $i,SY418: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV88 @ SY417 ) @ SY418 )
                  | ( in @ SV88 @ SY418 ) )
            | ~ ! [SY419: $i,SY420: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV88 @ SY419 ) @ SY420 )
                  | ( in @ SY419 @ SY420 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[918]) ).

thf(1035,plain,
    ! [SV180: $i] :
      ( ( ! [SY476: $i] :
            ( ( ( set_difference @ SV180 @ SY476 )
             != empty_set )
            | ( subset @ SV180 @ SY476 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[919]) ).

thf(1036,plain,
    ! [SV181: $i] :
      ( ( ! [SY477: $i] :
            ( ~ ( subset @ SV181 @ SY477 )
            | ( ( set_difference @ SV181 @ SY477 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[920]) ).

thf(1037,plain,
    ! [SV182: $i] :
      ( ( ! [SY478: $i] :
            ( ~ ( subset @ SV182 @ ( singleton @ SY478 ) )
            | ( SV182 = empty_set )
            | ( SV182
              = ( singleton @ SY478 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[921]) ).

thf(1038,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)],[922]) ).

thf(1039,plain,
    ! [SV183: $i] :
      ( ( ! [SY479: $i] :
            ( ~ ( in @ SV183 @ SY479 )
            | ( subset @ ( singleton @ SV183 ) @ SY479 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[923]) ).

thf(1040,plain,
    ! [SV184: $i] :
      ( ( ! [SY480: $i] :
            ( ~ ( subset @ ( singleton @ SV184 ) @ SY480 )
            | ( in @ SV184 @ SY480 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[924]) ).

thf(1041,plain,
    ! [SV185: $i] :
      ( ( ! [SY481: $i] :
            ( ( ( set_difference @ SV185 @ ( singleton @ SY481 ) )
             != SV185 )
            | ~ ( in @ SY481 @ SV185 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[925]) ).

thf(1042,plain,
    ! [SV186: $i] :
      ( ( ! [SY482: $i] :
            ( ( in @ SY482 @ SV186 )
            | ( ( set_difference @ SV186 @ ( singleton @ SY482 ) )
              = SV186 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[926]) ).

thf(1043,plain,
    ! [SV187: $i] :
      ( ( ! [SY483: $i] :
            ( ~ ( ~ ( ( ( sK27_C @ SY483 @ SV187 )
                     != SV187 )
                    | ~ ( in @ ( sK27_C @ SY483 @ SV187 ) @ SY483 ) )
                | ~ ( ( ( sK27_C @ SY483 @ SV187 )
                      = SV187 )
                    | ( in @ ( sK27_C @ SY483 @ SV187 ) @ SY483 ) ) )
            | ( SY483
              = ( singleton @ SV187 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[927]) ).

thf(1044,plain,
    ! [SV188: $i] :
      ( ( ! [SY484: $i] :
            ( ( SY484
             != ( singleton @ SV188 ) )
            | ~ ( ~ ! [SY485: $i] :
                      ( ( SY485 != SV188 )
                      | ( in @ SY485 @ SY484 ) )
                | ~ ! [SY486: $i] :
                      ( ~ ( in @ SY486 @ SY484 )
                      | ( SY486 = SV188 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[928]) ).

thf(1045,plain,
    ! [SV89: $i] :
      ( ( ! [SY421: $i,SY422: $i] :
            ( ~ ( relation @ SY422 )
            | ~ ( in @ ( ordered_pair @ SV89 @ SY421 ) @ SY422 )
            | ( in @ SV89 @ ( relation_dom @ SY422 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[929]) ).

thf(1046,plain,
    ! [SV89: $i] :
      ( ( ! [SY423: $i,SY424: $i] :
            ( ~ ( relation @ SY424 )
            | ~ ( in @ ( ordered_pair @ SV89 @ SY423 ) @ SY424 )
            | ( in @ SY423 @ ( relation_rng @ SY424 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[930]) ).

thf(1047,plain,
    ! [SV4: $i] :
      ( ( ( empty @ ( relation_dom @ SV4 ) )
        = $false )
      | ( ( empty @ SV4 )
        = $true )
      | ( ( relation @ SV4 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[931]) ).

thf(1048,plain,
    ! [SV5: $i] :
      ( ( ( empty @ ( relation_rng @ SV5 ) )
        = $false )
      | ( ( empty @ SV5 )
        = $true )
      | ( ( relation @ SV5 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[932]) ).

thf(1049,plain,
    ! [SV91: $i,SV12: $i] :
      ( ( ( in @ SV12 @ SV91 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV12 ) @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[934]) ).

thf(1050,plain,
    ! [SV14: $i,SV93: $i,SV189: $i] :
      ( ( ( ~ ( in @ SV189 @ SV93 )
          | ( in @ SV189 @ SV14 ) )
        = $true )
      | ( ( element @ SV93 @ ( powerset @ SV14 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[935]) ).

thf(1051,plain,
    ! [SV94: $i,SV15: $i,SV190: $i] :
      ( ( ( ( in @ SV190 @ SV15 )
          | ( subset @ SV15 @ ( set_difference @ SV94 @ ( singleton @ SV190 ) ) ) )
        = $true )
      | ( ( subset @ SV15 @ SV94 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[936]) ).

thf(1052,plain,
    ! [SV145: $i,SV135: $i,SV96: $i,SV17: $i] :
      ( ( ( ~ ( subset @ SV17 @ SV96 )
          | ~ ( subset @ SV135 @ SV145 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV17 @ SV135 ) @ ( cartesian_product2 @ SV96 @ SV145 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[938]) ).

thf(1053,plain,
    ! [SV136: $i,SV99: $i,SV20: $i] :
      ( ( ( ~ ( subset @ SV20 @ SV99 ) )
        = $true )
      | ( ( ~ ( subset @ SV20 @ SV136 ) )
        = $true )
      | ( ( subset @ SV20 @ ( set_intersection2 @ SV99 @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[940]) ).

thf(1054,plain,
    ! [SV137: $i,SV100: $i,SV21: $i] :
      ( ( ( ~ ( subset @ SV21 @ SV100 ) )
        = $true )
      | ( ( ~ ( subset @ SV100 @ SV137 ) )
        = $true )
      | ( ( subset @ SV21 @ SV137 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[941]) ).

thf(1055,plain,
    ! [SV101: $i,SV191: $i,SV23: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV23 @ SV191 ) @ ( set_intersection2 @ SV101 @ SV191 ) )
        = $true )
      | ( ( subset @ SV23 @ SV101 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[942]) ).

thf(1056,plain,
    ! [SV103: $i,SV192: $i,SV25: $i] :
      ( ( ( subset @ ( set_difference @ SV25 @ SV192 ) @ ( set_difference @ SV103 @ SV192 ) )
        = $true )
      | ( ( subset @ SV25 @ SV103 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[944]) ).

thf(1057,plain,
    ! [SV29: $i,SV146: $i] :
      ( ( ( ~ ( relation @ SV146 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV29 @ SV146 ) ) @ ( relation_dom @ SV29 ) )
        = $true )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[945]) ).

thf(1058,plain,
    ! [SV30: $i,SV147: $i] :
      ( ( ( ~ ( relation @ SV147 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV30 @ SV147 ) ) @ ( relation_rng @ SV147 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[946]) ).

thf(1059,plain,
    ! [SV32: $i,SV148: $i] :
      ( ( ( ~ ( relation @ SV148 ) )
        = $true )
      | ( ( ~ ( subset @ ( relation_rng @ SV32 ) @ ( relation_dom @ SV148 ) )
          | ( ( relation_dom @ ( relation_composition @ SV32 @ SV148 ) )
            = ( relation_dom @ SV32 ) ) )
        = $true )
      | ( ( relation @ SV32 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[948]) ).

thf(1060,plain,
    ! [SV34: $i,SV149: $i] :
      ( ( ( ~ ( relation @ SV149 ) )
        = $true )
      | ( ( ~ ( subset @ ( relation_dom @ SV34 ) @ ( relation_rng @ SV149 ) )
          | ( ( relation_rng @ ( relation_composition @ SV149 @ SV34 ) )
            = ( relation_rng @ SV34 ) ) )
        = $true )
      | ( ( relation @ SV34 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[950]) ).

thf(1061,plain,
    ! [SV110: $i,SV37: $i] :
      ( ( ( subset @ SV37 @ SV110 )
        = $false )
      | ( ( proper_subset @ SV110 @ SV37 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[952]) ).

thf(1062,plain,
    ! [SV38: $i,SV138: $i,SV111: $i] :
      ( ( ( ~ ( disjoint @ SV111 @ SV138 ) )
        = $true )
      | ( ( ~ ( subset @ SV38 @ SV111 ) )
        = $true )
      | ( ( disjoint @ SV38 @ SV138 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[953]) ).

thf(1063,plain,
    ! [SV139: $i,SV114: $i,SV42: $i] :
      ( ( ( ~ ( subset @ SV42 @ SV114 ) )
        = $true )
      | ( ( ~ ( subset @ SV139 @ SV114 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV42 @ SV139 ) @ SV114 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[955]) ).

thf(1064,plain,
    ! [SV150: $i,SV115: $i,SV43: $i] :
      ( ( ( ( singleton @ SV43 )
          = ( unordered_pair @ SV115 @ SV150 ) )
        = $false )
      | ( ( SV43 = SV115 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[956]) ).

thf(1065,plain,
    ! [SV140: $i,SV117: $i,SV46: $i] :
      ( ( ( ( singleton @ SV46 )
          = ( unordered_pair @ SV117 @ SV140 ) )
        = $false )
      | ( ( SV117 = SV140 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[958]) ).

thf(1066,plain,
    ! [SV47: $i,SV118: $i] :
      ( ( ( in @ SV118 @ SV47 )
        = $false )
      | ( ( in @ SV47 @ SV118 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[959]) ).

thf(1067,plain,
    ! [SV121: $i,SV53: $i] :
      ( ( ( relation @ SV53 )
        = $false )
      | ( ( ~ ( relation @ SV121 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV53 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[960]) ).

thf(1068,plain,
    ! [SV123: $i,SV56: $i] :
      ( ( ( relation @ SV56 )
        = $false )
      | ( ( ~ ( relation @ SV123 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV56 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[961]) ).

thf(1069,plain,
    ! [SV125: $i,SV61: $i] :
      ( ( ( empty @ ( cartesian_product2 @ SV61 @ SV125 ) )
        = $false )
      | ( ( empty @ SV125 )
        = $true )
      | ( ( empty @ SV61 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[964]) ).

thf(1070,plain,
    ! [SV68: $i,SV128: $i] :
      ( ( ( empty @ SV128 )
        = $true )
      | ( ( in @ SV68 @ SV128 )
        = $true )
      | ( ( element @ SV68 @ SV128 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[967]) ).

thf(1071,plain,
    ! [SV69: $i,SV143: $i,SV129: $i] :
      ( ( ( ~ ( element @ SV129 @ ( powerset @ SV143 ) ) )
        = $true )
      | ( ( ~ ( in @ SV69 @ SV129 ) )
        = $true )
      | ( ( element @ SV69 @ SV143 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[968]) ).

thf(1072,plain,
    ! [SV70: $i,SV144: $i,SV130: $i] :
      ( ( ( ~ ( element @ SV130 @ ( powerset @ SV144 ) ) )
        = $true )
      | ( ( ~ ( in @ SV70 @ SV130 ) )
        = $true )
      | ( ( ~ ( empty @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[969]) ).

thf(1073,plain,
    ! [SV131: $i,SV71: $i] :
      ( ( ( in @ SV71 @ SV131 )
        = $false )
      | ( ( empty @ SV131 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[970]) ).

thf(1074,plain,
    ! [SV132: $i,SV72: $i] :
      ( ( ( empty @ SV72 )
        = $false )
      | ( ( SV72 = SV132 )
        = $true )
      | ( ( ~ ( empty @ SV132 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[971]) ).

thf(1075,plain,
    ! [SV73: $i,SV193: $i] :
      ( ( ! [SY487: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY487 @ SV193 @ SV73 ) @ SY487 )
                          | ~ ( in @ ( sK24_D @ SY487 @ SV193 @ SV73 ) @ SV73 ) )
                      | ~ ( ~ ( in @ ( sK24_D @ SY487 @ SV193 @ SV73 ) @ SY487 )
                          | ~ ( in @ ( sK24_D @ SY487 @ SV193 @ SV73 ) @ SV193 ) ) )
                | ~ ( ( in @ ( sK24_D @ SY487 @ SV193 @ SV73 ) @ SY487 )
                    | ( in @ ( sK24_D @ SY487 @ SV193 @ SV73 ) @ SV73 )
                    | ( in @ ( sK24_D @ SY487 @ SV193 @ SV73 ) @ SV193 ) ) )
            | ( SY487
              = ( set_union2 @ SV73 @ SV193 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[972]) ).

thf(1076,plain,
    ! [SV194: $i,SV73: $i] :
      ( ( ! [SY488: $i] :
            ( ( SY488
             != ( set_union2 @ SV73 @ SV194 ) )
            | ~ ( ~ ! [SY489: $i] :
                      ( ~ ( in @ SY489 @ SY488 )
                      | ( in @ SY489 @ SV73 )
                      | ( in @ SY489 @ SV194 ) )
                | ~ ~ ( ~ ! [SY357: $i] :
                            ( ~ ( in @ SY357 @ SV73 )
                            | ( in @ SY357 @ SY488 ) )
                      | ~ ! [SY491: $i] :
                            ( ~ ( in @ SY491 @ SV194 )
                            | ( in @ SY491 @ SY488 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[973]) ).

thf(1077,plain,
    ! [SV74: $i,SV195: $i] :
      ( ( ! [SY492: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY492 @ SV195 @ SV74 ) @ SY492 )
                          | ( ( sK25_D @ SY492 @ SV195 @ SV74 )
                           != SV74 ) )
                      | ~ ( ~ ( in @ ( sK25_D @ SY492 @ SV195 @ SV74 ) @ SY492 )
                          | ( ( sK25_D @ SY492 @ SV195 @ SV74 )
                           != SV195 ) ) )
                | ~ ( ( in @ ( sK25_D @ SY492 @ SV195 @ SV74 ) @ SY492 )
                    | ( ( sK25_D @ SY492 @ SV195 @ SV74 )
                      = SV74 )
                    | ( ( sK25_D @ SY492 @ SV195 @ SV74 )
                      = SV195 ) ) )
            | ( SY492
              = ( unordered_pair @ SV74 @ SV195 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[974]) ).

thf(1078,plain,
    ! [SV196: $i,SV74: $i] :
      ( ( ! [SY493: $i] :
            ( ( SY493
             != ( unordered_pair @ SV74 @ SV196 ) )
            | ~ ( ~ ! [SY494: $i] :
                      ( ~ ( in @ SY494 @ SY493 )
                      | ( SY494 = SV74 )
                      | ( SY494 = SV196 ) )
                | ~ ~ ( ~ ! [SY364: $i] :
                            ( ( SY364 != SV74 )
                            | ( in @ SY364 @ SY493 ) )
                      | ~ ! [SY496: $i] :
                            ( ( SY496 != SV196 )
                            | ( in @ SY496 @ SY493 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[975]) ).

thf(1079,plain,
    ! [SV75: $i,SV197: $i] :
      ( ( ! [SY497: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY497 @ SV197 @ SV75 ) @ SV75 )
                    | ~ ( in @ ( sK22_D @ SY497 @ SV197 @ SV75 ) @ SV197 )
                    | ~ ( in @ ( sK22_D @ SY497 @ SV197 @ SV75 ) @ SY497 ) )
                | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY497 @ SV197 @ SV75 ) @ SV75 )
                          | ( in @ ( sK22_D @ SY497 @ SV197 @ SV75 ) @ SY497 ) )
                      | ~ ( ( in @ ( sK22_D @ SY497 @ SV197 @ SV75 ) @ SV197 )
                          | ( in @ ( sK22_D @ SY497 @ SV197 @ SV75 ) @ SY497 ) ) ) )
            | ( SY497
              = ( set_intersection2 @ SV75 @ SV197 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[976]) ).

thf(1080,plain,
    ! [SV198: $i,SV75: $i] :
      ( ( ! [SY498: $i] :
            ( ( SY498
             != ( set_intersection2 @ SV75 @ SV198 ) )
            | ~ ( ~ ! [SY499: $i] :
                      ( ~ ( in @ SY499 @ SV75 )
                      | ~ ( in @ SY499 @ SV198 )
                      | ( in @ SY499 @ SY498 ) )
                | ~ ~ ( ~ ! [SY371: $i] :
                            ( ~ ( in @ SY371 @ SY498 )
                            | ( in @ SY371 @ SV75 ) )
                      | ~ ! [SY501: $i] :
                            ( ~ ( in @ SY501 @ SY498 )
                            | ( in @ SY501 @ SV198 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[977]) ).

thf(1081,plain,
    ! [SV76: $i] :
      ( ( ( ~ ! [SY373: $i] :
                ( ~ ( ~ ( ! [SY374: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ SY374 ) @ SV76 )
                        | ~ ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ ( sK21_SY278 @ SY373 @ SV76 ) ) @ SV76 )
                        | ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) ) )
                | ( SY373
                  = ( relation_dom @ SV76 ) ) ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[978]) ).

thf(1082,plain,
    ! [SV76: $i] :
      ( ( ( ~ ! [SY375: $i] :
                ( ( SY375
                 != ( relation_dom @ SV76 ) )
                | ~ ( ~ ! [SY376: $i] :
                          ( ! [SY377: $i] :
                              ~ ( in @ ( ordered_pair @ SY376 @ SY377 ) @ SV76 )
                          | ( in @ SY376 @ SY375 ) )
                    | ~ ! [SY378: $i] :
                          ( ~ ( in @ SY378 @ SY375 )
                          | ( in @ ( ordered_pair @ SY378 @ ( sK19_D @ SY378 @ SY375 @ SV76 ) ) @ SV76 ) ) ) ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[978]) ).

thf(1083,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[979]) ).

thf(1084,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[979]) ).

thf(1085,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[980]) ).

thf(1086,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[980]) ).

thf(1087,plain,
    ! [SV151: $i] :
      ( ( ( in @ ( sK37_B @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[981]) ).

thf(1088,plain,
    ! [SV152: $i] :
      ( ( ( ( SV152 != empty_set ) )
        = $true )
      | ( ( ! [SY440: $i] :
              ~ ( in @ SY440 @ SV152 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[982]) ).

thf(1089,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
                | ~ ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) )
            | ~ ( ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
                | ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) ) )
        | ( SV199
          = ( powerset @ SV153 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[983]) ).

thf(1090,plain,
    ! [SV154: $i,SV200: $i] :
      ( ( ( SV200
         != ( powerset @ SV154 ) )
        | ~ ( ~ ! [SY502: $i] :
                  ( ~ ( in @ SY502 @ SV200 )
                  | ( subset @ SY502 @ SV154 ) )
            | ~ ! [SY503: $i] :
                  ( ~ ( subset @ SY503 @ SV154 )
                  | ( in @ SY503 @ SV200 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[984]) ).

thf(1091,plain,
    ! [SV201: $i,SV155: $i] :
      ( ( ( disjoint @ SV155 @ SV201 )
        | ( in @ ( sK33_C @ SV201 @ SV155 ) @ ( set_intersection2 @ SV155 @ SV201 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[985]) ).

thf(1092,plain,
    ! [SV202: $i,SV156: $i] :
      ( ( ! [SY504: $i] :
            ~ ( in @ SY504 @ ( set_intersection2 @ SV156 @ SV202 ) )
        | ~ ( disjoint @ SV156 @ SV202 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[986]) ).

thf(1093,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ~ ( ~ ( ! [SY505: $i] :
                    ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SY505 )
                    | ~ ( in @ SY505 @ SV157 ) )
                | ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
            | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ ( sK18_SY276 @ SV203 @ SV157 ) )
                    | ~ ( in @ ( sK18_SY276 @ SV203 @ SV157 ) @ SV157 ) )
                | ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) ) )
        | ( SV203
          = ( union @ SV157 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[987]) ).

thf(1094,plain,
    ! [SV158: $i,SV204: $i] :
      ( ( ( SV204
         != ( union @ SV158 ) )
        | ~ ( ~ ! [SY506: $i] :
                  ( ! [SY452: $i] :
                      ( ~ ( in @ SY506 @ SY452 )
                      | ~ ( in @ SY452 @ SV158 ) )
                  | ( in @ SY506 @ SV204 ) )
            | ~ ! [SY508: $i] :
                  ( ~ ( in @ SY508 @ SV204 )
                  | ~ ( ~ ( in @ SY508 @ ( sK16_D @ SY508 @ SV204 @ SV158 ) )
                      | ~ ( in @ ( sK16_D @ SY508 @ SV204 @ SV158 ) @ SV158 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[988]) ).

thf(1095,plain,
    ! [SV159: $i] :
      ( ( ( ~ ( relation @ SV159 ) )
        = $true )
      | ( ( ( relation_rng @ SV159 )
          = ( relation_dom @ ( relation_inverse @ SV159 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[989]) ).

thf(1096,plain,
    ! [SV160: $i] :
      ( ( ( ~ ( relation @ SV160 ) )
        = $true )
      | ( ( ( relation_dom @ SV160 )
          = ( relation_rng @ ( relation_inverse @ SV160 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[990]) ).

thf(1097,plain,
    ! [SV77: $i] :
      ( ( ( element @ ( sK8_B @ SV77 ) @ ( powerset @ SV77 ) )
        = $true )
      | ( ( empty @ SV77 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[991]) ).

thf(1098,plain,
    ! [SV77: $i] :
      ( ( ( ~ ( empty @ ( sK8_B @ SV77 ) ) )
        = $true )
      | ( ( empty @ SV77 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[992]) ).

thf(1099,plain,
    ! [SV205: $i,SV161: $i] :
      ( ( ( disjoint @ SV161 @ SV205 )
        | ~ ( ~ ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV161 )
            | ~ ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV205 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[993]) ).

thf(1100,plain,
    ! [SV206: $i,SV162: $i] :
      ( ( ! [SY509: $i] :
            ( ~ ( in @ SY509 @ SV162 )
            | ~ ( in @ SY509 @ SV206 ) )
        | ~ ( disjoint @ SV162 @ SV206 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[994]) ).

thf(1101,plain,
    ! [SV207: $i,SV163: $i] :
      ( ( ( ( set_difference @ SV163 @ SV207 )
         != empty_set )
        | ( subset @ SV163 @ SV207 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[995]) ).

thf(1102,plain,
    ! [SV208: $i,SV164: $i] :
      ( ( ~ ( subset @ SV164 @ SV208 )
        | ( ( set_difference @ SV164 @ SV208 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[996]) ).

thf(1103,plain,
    ! [SV78: $i] :
      ( ( ( ~ ! [SY379: $i] :
                ( ~ ( relation @ SY379 )
                | ~ ( subset @ SV78 @ SY379 )
                | ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SY379 ) ) ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[997]) ).

thf(1104,plain,
    ! [SV78: $i] :
      ( ( ( ~ ! [SY380: $i] :
                ( ~ ( relation @ SY380 )
                | ~ ( subset @ SV78 @ SY380 )
                | ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SY380 ) ) ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[997]) ).

thf(1105,plain,
    ! [SV79: $i,SV209: $i] :
      ( ( ~ ( subset @ SV209 @ ( sK35_B @ SV79 ) )
        | ( are_equipotent @ SV209 @ ( sK35_B @ SV79 ) )
        | ( in @ SV209 @ ( sK35_B @ SV79 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[998]) ).

thf(1106,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY382: $i] :
              ( ~ ( in @ SY382 @ ( sK35_B @ SV79 ) )
              | ( in @ ( powerset @ SY382 ) @ ( sK35_B @ SV79 ) ) )
        | ~ ~ ( ~ ! [SY383: $i,SY384: $i] :
                    ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
                    | ~ ( subset @ SY384 @ SY383 )
                    | ( in @ SY384 @ ( sK35_B @ SV79 ) ) )
              | ~ ( in @ SV79 @ ( sK35_B @ SV79 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[999]) ).

thf(1107,plain,
    ! [SV210: $i,SV165: $i] :
      ( ( ~ ( element @ SV165 @ ( powerset @ SV210 ) )
        | ( subset @ SV165 @ SV210 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1000]) ).

thf(1108,plain,
    ! [SV211: $i,SV166: $i] :
      ( ( ~ ( subset @ SV166 @ SV211 )
        | ( element @ SV166 @ ( powerset @ SV211 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1001]) ).

thf(1109,plain,
    ! [SV212: $i,SV167: $i] :
      ( ( ~ ( subset @ SV167 @ SV212 )
        | ~ ( subset @ SV212 @ SV167 )
        | ( SV167 = SV212 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1002]) ).

thf(1110,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1003]) ).

thf(1111,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1003]) ).

thf(1112,plain,
    ! [SV213: $i,SV168: $i] :
      ( ( ( ( set_intersection2 @ SV168 @ SV213 )
         != empty_set )
        | ( disjoint @ SV168 @ SV213 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1004]) ).

thf(1113,plain,
    ! [SV214: $i,SV169: $i] :
      ( ( ~ ( disjoint @ SV169 @ SV214 )
        | ( ( set_intersection2 @ SV169 @ SV214 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1005]) ).

thf(1114,plain,
    ! [SV80: $i,SV133: $i] :
      ( ( ( ~ ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV80 ) )
        = $false )
      | ( ( element @ SV80 @ ( powerset @ SV133 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1006]) ).

thf(1115,plain,
    ! [SV80: $i,SV133: $i] :
      ( ( ( ~ ~ ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV133 ) )
        = $false )
      | ( ( element @ SV80 @ ( powerset @ SV133 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1006]) ).

thf(1116,plain,
    ! [SV81: $i,SV215: $i] :
      ( ( ! [SY510: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY510 @ SV215 @ SV81 ) @ SV81 )
                    | ( in @ ( sK15_D @ SY510 @ SV215 @ SV81 ) @ SV215 )
                    | ~ ( in @ ( sK15_D @ SY510 @ SV215 @ SV81 ) @ SY510 ) )
                | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY510 @ SV215 @ SV81 ) @ SV81 )
                          | ( in @ ( sK15_D @ SY510 @ SV215 @ SV81 ) @ SY510 ) )
                      | ~ ( ~ ( in @ ( sK15_D @ SY510 @ SV215 @ SV81 ) @ SV215 )
                          | ( in @ ( sK15_D @ SY510 @ SV215 @ SV81 ) @ SY510 ) ) ) )
            | ( SY510
              = ( set_difference @ SV81 @ SV215 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1007]) ).

thf(1117,plain,
    ! [SV216: $i,SV81: $i] :
      ( ( ! [SY511: $i] :
            ( ( SY511
             != ( set_difference @ SV81 @ SV216 ) )
            | ~ ( ~ ! [SY512: $i] :
                      ( ~ ( in @ SY512 @ SV81 )
                      | ( in @ SY512 @ SV216 )
                      | ( in @ SY512 @ SY511 ) )
                | ~ ~ ( ~ ! [SY391: $i] :
                            ( ~ ( in @ SY391 @ SY511 )
                            | ( in @ SY391 @ SV81 ) )
                      | ~ ! [SY514: $i] :
                            ( ~ ( in @ SY514 @ SY511 )
                            | ~ ( in @ SY514 @ SV216 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1008]) ).

thf(1118,plain,
    ! [SV82: $i] :
      ( ( ( ~ ! [SY393: $i] :
                ( ~ ( ~ ( ! [SY394: $i] :
                            ~ ( in @ ( ordered_pair @ SY394 @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                        | ~ ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY393 @ SV82 ) @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                        | ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) ) )
                | ( SY393
                  = ( relation_rng @ SV82 ) ) ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1009]) ).

thf(1119,plain,
    ! [SV82: $i] :
      ( ( ( ~ ! [SY395: $i] :
                ( ( SY395
                 != ( relation_rng @ SV82 ) )
                | ~ ( ~ ! [SY396: $i] :
                          ( ! [SY397: $i] :
                              ~ ( in @ ( ordered_pair @ SY397 @ SY396 ) @ SV82 )
                          | ( in @ SY396 @ SY395 ) )
                    | ~ ! [SY398: $i] :
                          ( ~ ( in @ SY398 @ SY395 )
                          | ( in @ ( ordered_pair @ ( sK12_D @ SY398 @ SY395 @ SV82 ) @ SY398 ) @ SV82 ) ) ) ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1009]) ).

thf(1120,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
              | ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) ) )
        = $false )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1010]) ).

thf(1121,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( ~ ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
              | ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) ) )
        = $false )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1010]) ).

thf(1122,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1011]) ).

thf(1123,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK38_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)],[1011]) ).

thf(1124,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1012]) ).

thf(1125,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1012]) ).

thf(1126,plain,
    ! [SV217: $i,SV170: $i] :
      ( ( ( SV170 = SV217 )
        | ~ ( subset @ SV170 @ SV217 )
        | ( proper_subset @ SV170 @ SV217 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1013]) ).

thf(1127,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1014]) ).

thf(1128,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1014]) ).

thf(1129,plain,
    ! [SV84: $i] :
      ( ( ( ~ ! [SY400: $i] :
                ( ~ ( relation @ SY400 )
                | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                        | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                        | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) ) )
                | ( SY400
                  = ( relation_inverse @ SV84 ) ) ) )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1015]) ).

thf(1130,plain,
    ! [SV84: $i] :
      ( ( ( ~ ! [SY401: $i] :
                ( ~ ( relation @ SY401 )
                | ( SY401
                 != ( relation_inverse @ SV84 ) )
                | ~ ( ~ ! [SY402: $i,SY403: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY402 @ SY403 ) @ SY401 )
                          | ( in @ ( ordered_pair @ SY403 @ SY402 ) @ SV84 ) )
                    | ~ ! [SY404: $i,SY405: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY405 @ SY404 ) @ SV84 )
                          | ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SY401 ) ) ) ) )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1015]) ).

thf(1131,plain,
    ! [SV85: $i,SV218: $i] :
      ( ( ~ ( subset @ SV218 @ ( sK1_B @ SV85 ) )
        | ( are_equipotent @ SV218 @ ( sK1_B @ SV85 ) )
        | ( in @ SV218 @ ( sK1_B @ SV85 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1016]) ).

thf(1132,plain,
    ! [SV85: $i] :
      ( ( ~ ! [SY407: $i] :
              ( ~ ( ~ ! [SY408: $i] :
                        ( ~ ( subset @ SY408 @ SY407 )
                        | ( in @ SY408 @ ( sK2_SY267 @ SY407 @ SV85 ) ) )
                  | ~ ( in @ ( sK2_SY267 @ SY407 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
              | ~ ( in @ SY407 @ ( sK1_B @ SV85 ) ) )
        | ~ ~ ( ~ ! [SY409: $i,SY410: $i] :
                    ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
                    | ~ ( subset @ SY410 @ SY409 )
                    | ( in @ SY410 @ ( sK1_B @ SV85 ) ) )
              | ~ ( in @ SV85 @ ( sK1_B @ SV85 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1017]) ).

thf(1133,plain,
    ! [SV219: $i,SV171: $i] :
      ( ( ( ( set_difference @ SV171 @ SV219 )
         != SV171 )
        | ( disjoint @ SV171 @ SV219 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1018]) ).

thf(1134,plain,
    ! [SV220: $i,SV172: $i] :
      ( ( ~ ( disjoint @ SV172 @ SV220 )
        | ( ( set_difference @ SV172 @ SV220 )
          = SV172 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1019]) ).

thf(1135,plain,
    ! [SV173: $i] :
      ( ( ( ~ ( ~ ! [SY467: $i,SY468: $i] :
                    ( ( sK30_B @ SV173 )
                   != ( ordered_pair @ SY467 @ SY468 ) )
              | ~ ( in @ ( sK30_B @ SV173 ) @ SV173 ) ) )
        = $true )
      | ( ( relation @ SV173 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1022]) ).

thf(1136,plain,
    ! [SV174: $i] :
      ( ( ( ~ ( relation @ SV174 ) )
        = $true )
      | ( ( ! [SY469: $i] :
              ( ( SY469
                = ( ordered_pair @ ( sK28_C @ SY469 @ SV174 ) @ ( sK29_SY279 @ SY469 @ SV174 ) ) )
              | ~ ( in @ SY469 @ SV174 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1023]) ).

thf(1137,plain,
    ! [SV221: $i,SV87: $i] :
      ( ( ~ ( subset @ SV87 @ SV221 )
        | ! [SY515: $i] : ( subset @ ( cartesian_product2 @ SV87 @ SY515 ) @ ( cartesian_product2 @ SV221 @ SY515 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1025]) ).

thf(1138,plain,
    ! [SV222: $i,SV87: $i] :
      ( ( ~ ( subset @ SV87 @ SV222 )
        | ! [SY516: $i] : ( subset @ ( cartesian_product2 @ SY516 @ SV87 ) @ ( cartesian_product2 @ SY516 @ SV222 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1026]) ).

thf(1139,plain,
    ! [SV223: $i,SV175: $i] :
      ( ( ~ ( in @ SV175 @ SV223 )
        | ( subset @ ( singleton @ SV175 ) @ SV223 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1027]) ).

thf(1140,plain,
    ! [SV224: $i,SV176: $i] :
      ( ( ~ ( subset @ ( singleton @ SV176 ) @ SV224 )
        | ( in @ SV176 @ SV224 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1028]) ).

thf(1141,plain,
    ! [SV177: $i,SV225: $i] :
      ( ( ~ ( ~ ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV177 )
            | ~ ~ ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV225 ) )
        | ( subset @ SV177 @ SV225 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1029]) ).

thf(1142,plain,
    ! [SV226: $i,SV178: $i] :
      ( ( ~ ( subset @ SV178 @ SV226 )
        | ! [SY517: $i] :
            ( ~ ( in @ SY517 @ SV178 )
            | ( in @ SY517 @ SV226 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1030]) ).

thf(1143,plain,
    ! [SV227: $i,SV179: $i] :
      ( ( ~ ( subset @ SV179 @ ( singleton @ SV227 ) )
        | ( SV179 = empty_set )
        | ( SV179
          = ( singleton @ SV227 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1031]) ).

thf(1144,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1032]) ).

thf(1145,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1032]) ).

thf(1146,plain,
    ! [SV228: $i,SV88: $i] :
      ( ( ! [SY518: $i] :
            ( ~ ( in @ SV88 @ SY518 )
            | ~ ( in @ SV228 @ SY518 )
            | ( subset @ ( unordered_pair @ SV88 @ SV228 ) @ SY518 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1033]) ).

thf(1147,plain,
    ! [SV88: $i] :
      ( ( ~ ! [SY417: $i,SY418: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV88 @ SY417 ) @ SY418 )
              | ( in @ SV88 @ SY418 ) )
        | ~ ! [SY419: $i,SY420: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV88 @ SY419 ) @ SY420 )
              | ( in @ SY419 @ SY420 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1034]) ).

thf(1148,plain,
    ! [SV229: $i,SV180: $i] :
      ( ( ( ( set_difference @ SV180 @ SV229 )
         != empty_set )
        | ( subset @ SV180 @ SV229 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1035]) ).

thf(1149,plain,
    ! [SV230: $i,SV181: $i] :
      ( ( ~ ( subset @ SV181 @ SV230 )
        | ( ( set_difference @ SV181 @ SV230 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1036]) ).

thf(1150,plain,
    ! [SV231: $i,SV182: $i] :
      ( ( ~ ( subset @ SV182 @ ( singleton @ SV231 ) )
        | ( SV182 = empty_set )
        | ( SV182
          = ( singleton @ SV231 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1037]) ).

thf(1151,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1038]) ).

thf(1152,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1038]) ).

thf(1153,plain,
    ! [SV232: $i,SV183: $i] :
      ( ( ~ ( in @ SV183 @ SV232 )
        | ( subset @ ( singleton @ SV183 ) @ SV232 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1039]) ).

thf(1154,plain,
    ! [SV233: $i,SV184: $i] :
      ( ( ~ ( subset @ ( singleton @ SV184 ) @ SV233 )
        | ( in @ SV184 @ SV233 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1040]) ).

thf(1155,plain,
    ! [SV234: $i,SV185: $i] :
      ( ( ( ( set_difference @ SV185 @ ( singleton @ SV234 ) )
         != SV185 )
        | ~ ( in @ SV234 @ SV185 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1041]) ).

thf(1156,plain,
    ! [SV186: $i,SV235: $i] :
      ( ( ( in @ SV235 @ SV186 )
        | ( ( set_difference @ SV186 @ ( singleton @ SV235 ) )
          = SV186 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1042]) ).

thf(1157,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ~ ( ~ ( ( ( sK27_C @ SV236 @ SV187 )
                 != SV187 )
                | ~ ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) )
            | ~ ( ( ( sK27_C @ SV236 @ SV187 )
                  = SV187 )
                | ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) ) )
        | ( SV236
          = ( singleton @ SV187 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1043]) ).

thf(1158,plain,
    ! [SV188: $i,SV237: $i] :
      ( ( ( SV237
         != ( singleton @ SV188 ) )
        | ~ ( ~ ! [SY519: $i] :
                  ( ( SY519 != SV188 )
                  | ( in @ SY519 @ SV237 ) )
            | ~ ! [SY520: $i] :
                  ( ~ ( in @ SY520 @ SV237 )
                  | ( SY520 = SV188 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1044]) ).

thf(1159,plain,
    ! [SV238: $i,SV89: $i] :
      ( ( ! [SY521: $i] :
            ( ~ ( relation @ SY521 )
            | ~ ( in @ ( ordered_pair @ SV89 @ SV238 ) @ SY521 )
            | ( in @ SV89 @ ( relation_dom @ SY521 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1045]) ).

thf(1160,plain,
    ! [SV239: $i,SV89: $i] :
      ( ( ! [SY522: $i] :
            ( ~ ( relation @ SY522 )
            | ~ ( in @ ( ordered_pair @ SV89 @ SV239 ) @ SY522 )
            | ( in @ SV239 @ ( relation_rng @ SY522 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1046]) ).

thf(1161,plain,
    ! [SV14: $i,SV93: $i,SV189: $i] :
      ( ( ( ~ ( in @ SV189 @ SV93 ) )
        = $true )
      | ( ( in @ SV189 @ SV14 )
        = $true )
      | ( ( element @ SV93 @ ( powerset @ SV14 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1050]) ).

thf(1162,plain,
    ! [SV94: $i,SV15: $i,SV190: $i] :
      ( ( ( in @ SV190 @ SV15 )
        = $true )
      | ( ( subset @ SV15 @ ( set_difference @ SV94 @ ( singleton @ SV190 ) ) )
        = $true )
      | ( ( subset @ SV15 @ SV94 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1051]) ).

thf(1163,plain,
    ! [SV145: $i,SV135: $i,SV96: $i,SV17: $i] :
      ( ( ( ~ ( subset @ SV17 @ SV96 ) )
        = $true )
      | ( ( ~ ( subset @ SV135 @ SV145 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV17 @ SV135 ) @ ( cartesian_product2 @ SV96 @ SV145 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1052]) ).

thf(1164,plain,
    ! [SV136: $i,SV99: $i,SV20: $i] :
      ( ( ( subset @ SV20 @ SV99 )
        = $false )
      | ( ( ~ ( subset @ SV20 @ SV136 ) )
        = $true )
      | ( ( subset @ SV20 @ ( set_intersection2 @ SV99 @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1053]) ).

thf(1165,plain,
    ! [SV137: $i,SV100: $i,SV21: $i] :
      ( ( ( subset @ SV21 @ SV100 )
        = $false )
      | ( ( ~ ( subset @ SV100 @ SV137 ) )
        = $true )
      | ( ( subset @ SV21 @ SV137 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1054]) ).

thf(1166,plain,
    ! [SV29: $i,SV146: $i] :
      ( ( ( relation @ SV146 )
        = $false )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV29 @ SV146 ) ) @ ( relation_dom @ SV29 ) )
        = $true )
      | ( ( relation @ SV29 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1057]) ).

thf(1167,plain,
    ! [SV30: $i,SV147: $i] :
      ( ( ( relation @ SV147 )
        = $false )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV30 @ SV147 ) ) @ ( relation_rng @ SV147 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1058]) ).

thf(1168,plain,
    ! [SV32: $i,SV148: $i] :
      ( ( ( relation @ SV148 )
        = $false )
      | ( ( ~ ( subset @ ( relation_rng @ SV32 ) @ ( relation_dom @ SV148 ) )
          | ( ( relation_dom @ ( relation_composition @ SV32 @ SV148 ) )
            = ( relation_dom @ SV32 ) ) )
        = $true )
      | ( ( relation @ SV32 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1059]) ).

thf(1169,plain,
    ! [SV34: $i,SV149: $i] :
      ( ( ( relation @ SV149 )
        = $false )
      | ( ( ~ ( subset @ ( relation_dom @ SV34 ) @ ( relation_rng @ SV149 ) )
          | ( ( relation_rng @ ( relation_composition @ SV149 @ SV34 ) )
            = ( relation_rng @ SV34 ) ) )
        = $true )
      | ( ( relation @ SV34 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1060]) ).

thf(1170,plain,
    ! [SV38: $i,SV138: $i,SV111: $i] :
      ( ( ( disjoint @ SV111 @ SV138 )
        = $false )
      | ( ( ~ ( subset @ SV38 @ SV111 ) )
        = $true )
      | ( ( disjoint @ SV38 @ SV138 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1062]) ).

thf(1171,plain,
    ! [SV139: $i,SV114: $i,SV42: $i] :
      ( ( ( subset @ SV42 @ SV114 )
        = $false )
      | ( ( ~ ( subset @ SV139 @ SV114 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV42 @ SV139 ) @ SV114 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1063]) ).

thf(1172,plain,
    ! [SV53: $i,SV121: $i] :
      ( ( ( relation @ SV121 )
        = $false )
      | ( ( relation @ SV53 )
        = $false )
      | ( ( relation @ ( relation_composition @ SV53 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1067]) ).

thf(1173,plain,
    ! [SV56: $i,SV123: $i] :
      ( ( ( relation @ SV123 )
        = $false )
      | ( ( relation @ SV56 )
        = $false )
      | ( ( relation @ ( set_union2 @ SV56 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1068]) ).

thf(1174,plain,
    ! [SV69: $i,SV143: $i,SV129: $i] :
      ( ( ( element @ SV129 @ ( powerset @ SV143 ) )
        = $false )
      | ( ( ~ ( in @ SV69 @ SV129 ) )
        = $true )
      | ( ( element @ SV69 @ SV143 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1071]) ).

thf(1175,plain,
    ! [SV70: $i,SV144: $i,SV130: $i] :
      ( ( ( element @ SV130 @ ( powerset @ SV144 ) )
        = $false )
      | ( ( ~ ( in @ SV70 @ SV130 ) )
        = $true )
      | ( ( ~ ( empty @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1072]) ).

thf(1176,plain,
    ! [SV72: $i,SV132: $i] :
      ( ( ( empty @ SV132 )
        = $false )
      | ( ( SV72 = SV132 )
        = $true )
      | ( ( empty @ SV72 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1074]) ).

thf(1177,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                      | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) )
                  | ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                      | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) )
            | ~ ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 )
                | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) )
        | ( SV240
          = ( set_union2 @ SV73 @ SV193 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1075]) ).

thf(1178,plain,
    ! [SV194: $i,SV73: $i,SV241: $i] :
      ( ( ( SV241
         != ( set_union2 @ SV73 @ SV194 ) )
        | ~ ( ~ ! [SY523: $i] :
                  ( ~ ( in @ SY523 @ SV241 )
                  | ( in @ SY523 @ SV73 )
                  | ( in @ SY523 @ SV194 ) )
            | ~ ~ ( ~ ! [SY524: $i] :
                        ( ~ ( in @ SY524 @ SV73 )
                        | ( in @ SY524 @ SV241 ) )
                  | ~ ! [SY525: $i] :
                        ( ~ ( in @ SY525 @ SV194 )
                        | ( in @ SY525 @ SV241 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1076]) ).

thf(1179,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                      | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                       != SV74 ) )
                  | ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                      | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                       != SV195 ) ) )
            | ~ ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                  = SV74 )
                | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                  = SV195 ) ) )
        | ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1077]) ).

thf(1180,plain,
    ! [SV196: $i,SV74: $i,SV243: $i] :
      ( ( ( SV243
         != ( unordered_pair @ SV74 @ SV196 ) )
        | ~ ( ~ ! [SY526: $i] :
                  ( ~ ( in @ SY526 @ SV243 )
                  | ( SY526 = SV74 )
                  | ( SY526 = SV196 ) )
            | ~ ~ ( ~ ! [SY527: $i] :
                        ( ( SY527 != SV74 )
                        | ( in @ SY527 @ SV243 ) )
                  | ~ ! [SY528: $i] :
                        ( ( SY528 != SV196 )
                        | ( in @ SY528 @ SV243 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1078]) ).

thf(1181,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
                | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
                | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
            | ~ ~ ( ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
                      | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
                  | ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
                      | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) ) ) )
        | ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1079]) ).

thf(1182,plain,
    ! [SV198: $i,SV75: $i,SV245: $i] :
      ( ( ( SV245
         != ( set_intersection2 @ SV75 @ SV198 ) )
        | ~ ( ~ ! [SY529: $i] :
                  ( ~ ( in @ SY529 @ SV75 )
                  | ~ ( in @ SY529 @ SV198 )
                  | ( in @ SY529 @ SV245 ) )
            | ~ ~ ( ~ ! [SY530: $i] :
                        ( ~ ( in @ SY530 @ SV245 )
                        | ( in @ SY530 @ SV75 ) )
                  | ~ ! [SY531: $i] :
                        ( ~ ( in @ SY531 @ SV245 )
                        | ( in @ SY531 @ SV198 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1080]) ).

thf(1183,plain,
    ! [SV76: $i] :
      ( ( ( ! [SY373: $i] :
              ( ~ ( ~ ( ! [SY374: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ SY374 ) @ SV76 )
                      | ~ ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY373 @ SV76 ) @ ( sK21_SY278 @ SY373 @ SV76 ) ) @ SV76 )
                      | ( in @ ( sK20_C @ SY373 @ SV76 ) @ SY373 ) ) )
              | ( SY373
                = ( relation_dom @ SV76 ) ) ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1081]) ).

thf(1184,plain,
    ! [SV76: $i] :
      ( ( ( ! [SY375: $i] :
              ( ( SY375
               != ( relation_dom @ SV76 ) )
              | ~ ( ~ ! [SY376: $i] :
                        ( ! [SY377: $i] :
                            ~ ( in @ ( ordered_pair @ SY376 @ SY377 ) @ SV76 )
                        | ( in @ SY376 @ SY375 ) )
                  | ~ ! [SY378: $i] :
                        ( ~ ( in @ SY378 @ SY375 )
                        | ( in @ ( ordered_pair @ SY378 @ ( sK19_D @ SY378 @ SY375 @ SV76 ) ) @ SV76 ) ) ) ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1082]) ).

thf(1185,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1083]) ).

thf(1186,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( in @ SX1 @ SX0 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1084]) ).

thf(1187,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( empty @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1085]) ).

thf(1188,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( empty @ SX1 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1086]) ).

thf(1189,plain,
    ! [SV152: $i] :
      ( ( ( SV152 = empty_set )
        = $false )
      | ( ( ! [SY440: $i] :
              ~ ( in @ SY440 @ SV152 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1088]) ).

thf(1190,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
                  | ~ ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) )
              | ~ ( ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
                  | ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) ) ) )
        = $true )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1089]) ).

thf(1191,plain,
    ! [SV154: $i,SV200: $i] :
      ( ( ( ( SV200
           != ( powerset @ SV154 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY502: $i] :
                    ( ~ ( in @ SY502 @ SV200 )
                    | ( subset @ SY502 @ SV154 ) )
              | ~ ! [SY503: $i] :
                    ( ~ ( subset @ SY503 @ SV154 )
                    | ( in @ SY503 @ SV200 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1090]) ).

thf(1192,plain,
    ! [SV201: $i,SV155: $i] :
      ( ( ( disjoint @ SV155 @ SV201 )
        = $true )
      | ( ( in @ ( sK33_C @ SV201 @ SV155 ) @ ( set_intersection2 @ SV155 @ SV201 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1091]) ).

thf(1193,plain,
    ! [SV202: $i,SV156: $i] :
      ( ( ( ! [SY504: $i] :
              ~ ( in @ SY504 @ ( set_intersection2 @ SV156 @ SV202 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV156 @ SV202 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1092]) ).

thf(1194,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ~ ( ~ ( ! [SY505: $i] :
                      ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SY505 )
                      | ~ ( in @ SY505 @ SV157 ) )
                  | ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
              | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ ( sK18_SY276 @ SV203 @ SV157 ) )
                      | ~ ( in @ ( sK18_SY276 @ SV203 @ SV157 ) @ SV157 ) )
                  | ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) ) ) )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1093]) ).

thf(1195,plain,
    ! [SV158: $i,SV204: $i] :
      ( ( ( ( SV204
           != ( union @ SV158 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY506: $i] :
                    ( ! [SY452: $i] :
                        ( ~ ( in @ SY506 @ SY452 )
                        | ~ ( in @ SY452 @ SV158 ) )
                    | ( in @ SY506 @ SV204 ) )
              | ~ ! [SY508: $i] :
                    ( ~ ( in @ SY508 @ SV204 )
                    | ~ ( ~ ( in @ SY508 @ ( sK16_D @ SY508 @ SV204 @ SV158 ) )
                        | ~ ( in @ ( sK16_D @ SY508 @ SV204 @ SV158 ) @ SV158 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1094]) ).

thf(1196,plain,
    ! [SV159: $i] :
      ( ( ( relation @ SV159 )
        = $false )
      | ( ( ( relation_rng @ SV159 )
          = ( relation_dom @ ( relation_inverse @ SV159 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1095]) ).

thf(1197,plain,
    ! [SV160: $i] :
      ( ( ( relation @ SV160 )
        = $false )
      | ( ( ( relation_dom @ SV160 )
          = ( relation_rng @ ( relation_inverse @ SV160 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1096]) ).

thf(1198,plain,
    ! [SV77: $i] :
      ( ( ( empty @ ( sK8_B @ SV77 ) )
        = $false )
      | ( ( empty @ SV77 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1098]) ).

thf(1199,plain,
    ! [SV205: $i,SV161: $i] :
      ( ( ( disjoint @ SV161 @ SV205 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV161 )
              | ~ ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV205 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1099]) ).

thf(1200,plain,
    ! [SV206: $i,SV162: $i] :
      ( ( ( ! [SY509: $i] :
              ( ~ ( in @ SY509 @ SV162 )
              | ~ ( in @ SY509 @ SV206 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV162 @ SV206 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1100]) ).

thf(1201,plain,
    ! [SV207: $i,SV163: $i] :
      ( ( ( ( ( set_difference @ SV163 @ SV207 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV163 @ SV207 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1101]) ).

thf(1202,plain,
    ! [SV208: $i,SV164: $i] :
      ( ( ( ~ ( subset @ SV164 @ SV208 ) )
        = $true )
      | ( ( ( set_difference @ SV164 @ SV208 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1102]) ).

thf(1203,plain,
    ! [SV78: $i] :
      ( ( ( ! [SY379: $i] :
              ( ~ ( relation @ SY379 )
              | ~ ( subset @ SV78 @ SY379 )
              | ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SY379 ) ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1103]) ).

thf(1204,plain,
    ! [SV78: $i] :
      ( ( ( ! [SY380: $i] :
              ( ~ ( relation @ SY380 )
              | ~ ( subset @ SV78 @ SY380 )
              | ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SY380 ) ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1104]) ).

thf(1205,plain,
    ! [SV79: $i,SV209: $i] :
      ( ( ( ~ ( subset @ SV209 @ ( sK35_B @ SV79 ) )
          | ( are_equipotent @ SV209 @ ( sK35_B @ SV79 ) ) )
        = $true )
      | ( ( in @ SV209 @ ( sK35_B @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1105]) ).

thf(1206,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY382: $i] :
              ( ~ ( in @ SY382 @ ( sK35_B @ SV79 ) )
              | ( in @ ( powerset @ SY382 ) @ ( sK35_B @ SV79 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1106]) ).

thf(1207,plain,
    ! [SV79: $i] :
      ( ( ~ ~ ( ~ ! [SY383: $i,SY384: $i] :
                    ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
                    | ~ ( subset @ SY384 @ SY383 )
                    | ( in @ SY384 @ ( sK35_B @ SV79 ) ) )
              | ~ ( in @ SV79 @ ( sK35_B @ SV79 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1106]) ).

thf(1208,plain,
    ! [SV210: $i,SV165: $i] :
      ( ( ( ~ ( element @ SV165 @ ( powerset @ SV210 ) ) )
        = $true )
      | ( ( subset @ SV165 @ SV210 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1107]) ).

thf(1209,plain,
    ! [SV211: $i,SV166: $i] :
      ( ( ( ~ ( subset @ SV166 @ SV211 ) )
        = $true )
      | ( ( element @ SV166 @ ( powerset @ SV211 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1108]) ).

thf(1210,plain,
    ! [SV212: $i,SV167: $i] :
      ( ( ( ~ ( subset @ SV167 @ SV212 )
          | ~ ( subset @ SV212 @ SV167 ) )
        = $true )
      | ( ( SV167 = SV212 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1109]) ).

thf(1211,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1110]) ).

thf(1212,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1111]) ).

thf(1213,plain,
    ! [SV213: $i,SV168: $i] :
      ( ( ( ( ( set_intersection2 @ SV168 @ SV213 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV168 @ SV213 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1112]) ).

thf(1214,plain,
    ! [SV214: $i,SV169: $i] :
      ( ( ( ~ ( disjoint @ SV169 @ SV214 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV169 @ SV214 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1113]) ).

thf(1215,plain,
    ! [SV80: $i,SV133: $i] :
      ( ( ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV80 )
        = $true )
      | ( ( element @ SV80 @ ( powerset @ SV133 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1114]) ).

thf(1216,plain,
    ! [SV80: $i,SV133: $i] :
      ( ( ( ~ ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV133 ) )
        = $true )
      | ( ( element @ SV80 @ ( powerset @ SV133 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1115]) ).

thf(1217,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
                | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
                | ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
            | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
                      | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
                  | ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
                      | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) ) ) )
        | ( SV246
          = ( set_difference @ SV81 @ SV215 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1116]) ).

thf(1218,plain,
    ! [SV216: $i,SV81: $i,SV247: $i] :
      ( ( ( SV247
         != ( set_difference @ SV81 @ SV216 ) )
        | ~ ( ~ ! [SY532: $i] :
                  ( ~ ( in @ SY532 @ SV81 )
                  | ( in @ SY532 @ SV216 )
                  | ( in @ SY532 @ SV247 ) )
            | ~ ~ ( ~ ! [SY533: $i] :
                        ( ~ ( in @ SY533 @ SV247 )
                        | ( in @ SY533 @ SV81 ) )
                  | ~ ! [SY534: $i] :
                        ( ~ ( in @ SY534 @ SV247 )
                        | ~ ( in @ SY534 @ SV216 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1117]) ).

thf(1219,plain,
    ! [SV82: $i] :
      ( ( ( ! [SY393: $i] :
              ( ~ ( ~ ( ! [SY394: $i] :
                          ~ ( in @ ( ordered_pair @ SY394 @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                      | ~ ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY393 @ SV82 ) @ ( sK13_C @ SY393 @ SV82 ) ) @ SV82 )
                      | ( in @ ( sK13_C @ SY393 @ SV82 ) @ SY393 ) ) )
              | ( SY393
                = ( relation_rng @ SV82 ) ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1118]) ).

thf(1220,plain,
    ! [SV82: $i] :
      ( ( ( ! [SY395: $i] :
              ( ( SY395
               != ( relation_rng @ SV82 ) )
              | ~ ( ~ ! [SY396: $i] :
                        ( ! [SY397: $i] :
                            ~ ( in @ ( ordered_pair @ SY397 @ SY396 ) @ SV82 )
                        | ( in @ SY396 @ SY395 ) )
                  | ~ ! [SY398: $i] :
                        ( ~ ( in @ SY398 @ SY395 )
                        | ( in @ ( ordered_pair @ ( sK12_D @ SY398 @ SY395 @ SV82 ) @ SY398 ) @ SV82 ) ) ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1119]) ).

thf(1221,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
          | ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) )
        = $true )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1120]) ).

thf(1222,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
          | ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) )
        = $true )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1121]) ).

thf(1223,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                      | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                  | ~ ( ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX0 )
                          | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                      | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1122]) ).

thf(1224,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ SX2 @ ( sK38_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)],[1123]) ).

thf(1225,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ( SX1 = empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1124]) ).

thf(1226,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1 != empty_set )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1125]) ).

thf(1227,plain,
    ! [SV217: $i,SV170: $i] :
      ( ( ( ( SV170 = SV217 )
          | ~ ( subset @ SV170 @ SV217 ) )
        = $true )
      | ( ( proper_subset @ SV170 @ SV217 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1126]) ).

thf(1228,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1127]) ).

thf(1229,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1128]) ).

thf(1230,plain,
    ! [SV84: $i] :
      ( ( ( ! [SY400: $i] :
              ( ~ ( relation @ SY400 )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                      | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY400 @ SV84 ) @ ( sK11_SY272 @ SY400 @ SV84 ) ) @ SY400 )
                      | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY400 @ SV84 ) @ ( sK10_C @ SY400 @ SV84 ) ) @ SV84 ) ) )
              | ( SY400
                = ( relation_inverse @ SV84 ) ) ) )
        = $true )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1129]) ).

thf(1231,plain,
    ! [SV84: $i] :
      ( ( ( ! [SY401: $i] :
              ( ~ ( relation @ SY401 )
              | ( SY401
               != ( relation_inverse @ SV84 ) )
              | ~ ( ~ ! [SY402: $i,SY403: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY402 @ SY403 ) @ SY401 )
                        | ( in @ ( ordered_pair @ SY403 @ SY402 ) @ SV84 ) )
                  | ~ ! [SY404: $i,SY405: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY405 @ SY404 ) @ SV84 )
                        | ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SY401 ) ) ) ) )
        = $true )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1130]) ).

thf(1232,plain,
    ! [SV85: $i,SV218: $i] :
      ( ( ( ~ ( subset @ SV218 @ ( sK1_B @ SV85 ) )
          | ( are_equipotent @ SV218 @ ( sK1_B @ SV85 ) ) )
        = $true )
      | ( ( in @ SV218 @ ( sK1_B @ SV85 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1131]) ).

thf(1233,plain,
    ! [SV85: $i] :
      ( ( ~ ! [SY407: $i] :
              ( ~ ( ~ ! [SY408: $i] :
                        ( ~ ( subset @ SY408 @ SY407 )
                        | ( in @ SY408 @ ( sK2_SY267 @ SY407 @ SV85 ) ) )
                  | ~ ( in @ ( sK2_SY267 @ SY407 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
              | ~ ( in @ SY407 @ ( sK1_B @ SV85 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1132]) ).

thf(1234,plain,
    ! [SV85: $i] :
      ( ( ~ ~ ( ~ ! [SY409: $i,SY410: $i] :
                    ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
                    | ~ ( subset @ SY410 @ SY409 )
                    | ( in @ SY410 @ ( sK1_B @ SV85 ) ) )
              | ~ ( in @ SV85 @ ( sK1_B @ SV85 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1132]) ).

thf(1235,plain,
    ! [SV219: $i,SV171: $i] :
      ( ( ( ( ( set_difference @ SV171 @ SV219 )
           != SV171 ) )
        = $true )
      | ( ( disjoint @ SV171 @ SV219 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1133]) ).

thf(1236,plain,
    ! [SV220: $i,SV172: $i] :
      ( ( ( ~ ( disjoint @ SV172 @ SV220 ) )
        = $true )
      | ( ( ( set_difference @ SV172 @ SV220 )
          = SV172 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1134]) ).

thf(1237,plain,
    ! [SV173: $i] :
      ( ( ( ~ ! [SY467: $i,SY468: $i] :
                ( ( sK30_B @ SV173 )
               != ( ordered_pair @ SY467 @ SY468 ) )
          | ~ ( in @ ( sK30_B @ SV173 ) @ SV173 ) )
        = $false )
      | ( ( relation @ SV173 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1135]) ).

thf(1238,plain,
    ! [SV174: $i] :
      ( ( ( relation @ SV174 )
        = $false )
      | ( ( ! [SY469: $i] :
              ( ( SY469
                = ( ordered_pair @ ( sK28_C @ SY469 @ SV174 ) @ ( sK29_SY279 @ SY469 @ SV174 ) ) )
              | ~ ( in @ SY469 @ SV174 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1136]) ).

thf(1239,plain,
    ! [SV221: $i,SV87: $i] :
      ( ( ( ~ ( subset @ SV87 @ SV221 ) )
        = $true )
      | ( ( ! [SY515: $i] : ( subset @ ( cartesian_product2 @ SV87 @ SY515 ) @ ( cartesian_product2 @ SV221 @ SY515 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1137]) ).

thf(1240,plain,
    ! [SV222: $i,SV87: $i] :
      ( ( ( ~ ( subset @ SV87 @ SV222 ) )
        = $true )
      | ( ( ! [SY516: $i] : ( subset @ ( cartesian_product2 @ SY516 @ SV87 ) @ ( cartesian_product2 @ SY516 @ SV222 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1138]) ).

thf(1241,plain,
    ! [SV223: $i,SV175: $i] :
      ( ( ( ~ ( in @ SV175 @ SV223 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV175 ) @ SV223 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1139]) ).

thf(1242,plain,
    ! [SV224: $i,SV176: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV176 ) @ SV224 ) )
        = $true )
      | ( ( in @ SV176 @ SV224 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1140]) ).

thf(1243,plain,
    ! [SV177: $i,SV225: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV177 )
              | ~ ~ ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV225 ) ) )
        = $true )
      | ( ( subset @ SV177 @ SV225 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1141]) ).

thf(1244,plain,
    ! [SV226: $i,SV178: $i] :
      ( ( ( ~ ( subset @ SV178 @ SV226 ) )
        = $true )
      | ( ( ! [SY517: $i] :
              ( ~ ( in @ SY517 @ SV178 )
              | ( in @ SY517 @ SV226 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1142]) ).

thf(1245,plain,
    ! [SV227: $i,SV179: $i] :
      ( ( ( ~ ( subset @ SV179 @ ( singleton @ SV227 ) ) )
        = $true )
      | ( ( ( SV179 = empty_set )
          | ( SV179
            = ( singleton @ SV227 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1143]) ).

thf(1246,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1144]) ).

thf(1247,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1145]) ).

thf(1248,plain,
    ! [SV228: $i,SV248: $i,SV88: $i] :
      ( ( ~ ( in @ SV88 @ SV248 )
        | ~ ( in @ SV228 @ SV248 )
        | ( subset @ ( unordered_pair @ SV88 @ SV228 ) @ SV248 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1146]) ).

thf(1249,plain,
    ! [SV88: $i] :
      ( ( ~ ! [SY417: $i,SY418: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV88 @ SY417 ) @ SY418 )
              | ( in @ SV88 @ SY418 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1147]) ).

thf(1250,plain,
    ! [SV88: $i] :
      ( ( ~ ! [SY419: $i,SY420: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV88 @ SY419 ) @ SY420 )
              | ( in @ SY419 @ SY420 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1147]) ).

thf(1251,plain,
    ! [SV229: $i,SV180: $i] :
      ( ( ( ( ( set_difference @ SV180 @ SV229 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV180 @ SV229 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1148]) ).

thf(1252,plain,
    ! [SV230: $i,SV181: $i] :
      ( ( ( ~ ( subset @ SV181 @ SV230 ) )
        = $true )
      | ( ( ( set_difference @ SV181 @ SV230 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1149]) ).

thf(1253,plain,
    ! [SV231: $i,SV182: $i] :
      ( ( ( ~ ( subset @ SV182 @ ( singleton @ SV231 ) ) )
        = $true )
      | ( ( ( SV182 = empty_set )
          | ( SV182
            = ( singleton @ SV231 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1150]) ).

thf(1254,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1151]) ).

thf(1255,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1152]) ).

thf(1256,plain,
    ! [SV232: $i,SV183: $i] :
      ( ( ( ~ ( in @ SV183 @ SV232 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV183 ) @ SV232 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1153]) ).

thf(1257,plain,
    ! [SV233: $i,SV184: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV184 ) @ SV233 ) )
        = $true )
      | ( ( in @ SV184 @ SV233 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1154]) ).

thf(1258,plain,
    ! [SV234: $i,SV185: $i] :
      ( ( ( ( ( set_difference @ SV185 @ ( singleton @ SV234 ) )
           != SV185 ) )
        = $true )
      | ( ( ~ ( in @ SV234 @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1155]) ).

thf(1259,plain,
    ! [SV186: $i,SV235: $i] :
      ( ( ( in @ SV235 @ SV186 )
        = $true )
      | ( ( ( set_difference @ SV186 @ ( singleton @ SV235 ) )
          = SV186 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1156]) ).

thf(1260,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( ~ ( ~ ( ( ( sK27_C @ SV236 @ SV187 )
                   != SV187 )
                  | ~ ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) )
              | ~ ( ( ( sK27_C @ SV236 @ SV187 )
                    = SV187 )
                  | ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) ) ) )
        = $true )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1157]) ).

thf(1261,plain,
    ! [SV188: $i,SV237: $i] :
      ( ( ( ( SV237
           != ( singleton @ SV188 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY519: $i] :
                    ( ( SY519 != SV188 )
                    | ( in @ SY519 @ SV237 ) )
              | ~ ! [SY520: $i] :
                    ( ~ ( in @ SY520 @ SV237 )
                    | ( SY520 = SV188 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1158]) ).

thf(1262,plain,
    ! [SV238: $i,SV89: $i,SV249: $i] :
      ( ( ~ ( relation @ SV249 )
        | ~ ( in @ ( ordered_pair @ SV89 @ SV238 ) @ SV249 )
        | ( in @ SV89 @ ( relation_dom @ SV249 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1159]) ).

thf(1263,plain,
    ! [SV239: $i,SV89: $i,SV250: $i] :
      ( ( ~ ( relation @ SV250 )
        | ~ ( in @ ( ordered_pair @ SV89 @ SV239 ) @ SV250 )
        | ( in @ SV239 @ ( relation_rng @ SV250 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1160]) ).

thf(1264,plain,
    ! [SV14: $i,SV93: $i,SV189: $i] :
      ( ( ( in @ SV189 @ SV93 )
        = $false )
      | ( ( in @ SV189 @ SV14 )
        = $true )
      | ( ( element @ SV93 @ ( powerset @ SV14 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1161]) ).

thf(1265,plain,
    ! [SV145: $i,SV135: $i,SV96: $i,SV17: $i] :
      ( ( ( subset @ SV17 @ SV96 )
        = $false )
      | ( ( ~ ( subset @ SV135 @ SV145 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV17 @ SV135 ) @ ( cartesian_product2 @ SV96 @ SV145 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1163]) ).

thf(1266,plain,
    ! [SV99: $i,SV136: $i,SV20: $i] :
      ( ( ( subset @ SV20 @ SV136 )
        = $false )
      | ( ( subset @ SV20 @ SV99 )
        = $false )
      | ( ( subset @ SV20 @ ( set_intersection2 @ SV99 @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1164]) ).

thf(1267,plain,
    ! [SV21: $i,SV137: $i,SV100: $i] :
      ( ( ( subset @ SV100 @ SV137 )
        = $false )
      | ( ( subset @ SV21 @ SV100 )
        = $false )
      | ( ( subset @ SV21 @ SV137 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1165]) ).

thf(1268,plain,
    ! [SV148: $i,SV32: $i] :
      ( ( ( ~ ( subset @ ( relation_rng @ SV32 ) @ ( relation_dom @ SV148 ) ) )
        = $true )
      | ( ( ( relation_dom @ ( relation_composition @ SV32 @ SV148 ) )
          = ( relation_dom @ SV32 ) )
        = $true )
      | ( ( relation @ SV148 )
        = $false )
      | ( ( relation @ SV32 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1168]) ).

thf(1269,plain,
    ! [SV149: $i,SV34: $i] :
      ( ( ( ~ ( subset @ ( relation_dom @ SV34 ) @ ( relation_rng @ SV149 ) ) )
        = $true )
      | ( ( ( relation_rng @ ( relation_composition @ SV149 @ SV34 ) )
          = ( relation_rng @ SV34 ) )
        = $true )
      | ( ( relation @ SV149 )
        = $false )
      | ( ( relation @ SV34 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1169]) ).

thf(1270,plain,
    ! [SV138: $i,SV111: $i,SV38: $i] :
      ( ( ( subset @ SV38 @ SV111 )
        = $false )
      | ( ( disjoint @ SV111 @ SV138 )
        = $false )
      | ( ( disjoint @ SV38 @ SV138 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1170]) ).

thf(1271,plain,
    ! [SV42: $i,SV114: $i,SV139: $i] :
      ( ( ( subset @ SV139 @ SV114 )
        = $false )
      | ( ( subset @ SV42 @ SV114 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV42 @ SV139 ) @ SV114 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1171]) ).

thf(1272,plain,
    ! [SV143: $i,SV129: $i,SV69: $i] :
      ( ( ( in @ SV69 @ SV129 )
        = $false )
      | ( ( element @ SV129 @ ( powerset @ SV143 ) )
        = $false )
      | ( ( element @ SV69 @ SV143 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1174]) ).

thf(1273,plain,
    ! [SV144: $i,SV130: $i,SV70: $i] :
      ( ( ( in @ SV70 @ SV130 )
        = $false )
      | ( ( element @ SV130 @ ( powerset @ SV144 ) )
        = $false )
      | ( ( ~ ( empty @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1175]) ).

thf(1274,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                        | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) )
                    | ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                        | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) )
              | ~ ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                  | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 )
                  | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1177]) ).

thf(1275,plain,
    ! [SV194: $i,SV73: $i,SV241: $i] :
      ( ( ( ( SV241
           != ( set_union2 @ SV73 @ SV194 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY523: $i] :
                    ( ~ ( in @ SY523 @ SV241 )
                    | ( in @ SY523 @ SV73 )
                    | ( in @ SY523 @ SV194 ) )
              | ~ ~ ( ~ ! [SY524: $i] :
                          ( ~ ( in @ SY524 @ SV73 )
                          | ( in @ SY524 @ SV241 ) )
                    | ~ ! [SY525: $i] :
                          ( ~ ( in @ SY525 @ SV194 )
                          | ( in @ SY525 @ SV241 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1178]) ).

thf(1276,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                        | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                         != SV74 ) )
                    | ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                        | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                         != SV195 ) ) )
              | ~ ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                  | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                    = SV74 )
                  | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                    = SV195 ) ) ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1179]) ).

thf(1277,plain,
    ! [SV196: $i,SV74: $i,SV243: $i] :
      ( ( ( ( SV243
           != ( unordered_pair @ SV74 @ SV196 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY526: $i] :
                    ( ~ ( in @ SY526 @ SV243 )
                    | ( SY526 = SV74 )
                    | ( SY526 = SV196 ) )
              | ~ ~ ( ~ ! [SY527: $i] :
                          ( ( SY527 != SV74 )
                          | ( in @ SY527 @ SV243 ) )
                    | ~ ! [SY528: $i] :
                          ( ( SY528 != SV196 )
                          | ( in @ SY528 @ SV243 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1180]) ).

thf(1278,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
                  | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
                  | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
              | ~ ~ ( ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
                        | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
                    | ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
                        | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) ) ) ) )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1181]) ).

thf(1279,plain,
    ! [SV198: $i,SV75: $i,SV245: $i] :
      ( ( ( ( SV245
           != ( set_intersection2 @ SV75 @ SV198 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY529: $i] :
                    ( ~ ( in @ SY529 @ SV75 )
                    | ~ ( in @ SY529 @ SV198 )
                    | ( in @ SY529 @ SV245 ) )
              | ~ ~ ( ~ ! [SY530: $i] :
                          ( ~ ( in @ SY530 @ SV245 )
                          | ( in @ SY530 @ SV75 ) )
                    | ~ ! [SY531: $i] :
                          ( ~ ( in @ SY531 @ SV245 )
                          | ( in @ SY531 @ SV198 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1182]) ).

thf(1280,plain,
    ! [SV76: $i,SV251: $i] :
      ( ( ( ~ ( ~ ( ! [SY535: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ SY535 ) @ SV76 )
                  | ~ ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ ( sK21_SY278 @ SV251 @ SV76 ) ) @ SV76 )
                  | ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) ) )
          | ( SV251
            = ( relation_dom @ SV76 ) ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1183]) ).

thf(1281,plain,
    ! [SV76: $i,SV252: $i] :
      ( ( ( ( SV252
           != ( relation_dom @ SV76 ) )
          | ~ ( ~ ! [SY536: $i] :
                    ( ! [SY377: $i] :
                        ~ ( in @ ( ordered_pair @ SY536 @ SY377 ) @ SV76 )
                    | ( in @ SY536 @ SV252 ) )
              | ~ ! [SY538: $i] :
                    ( ~ ( in @ SY538 @ SV252 )
                    | ( in @ ( ordered_pair @ SY538 @ ( sK19_D @ SY538 @ SV252 @ SV76 ) ) @ SV76 ) ) ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1184]) ).

thf(1282,plain,
    ! [SV253: $i] :
      ( ( ( empty @ SV253 )
        | ! [SY539: $i] :
            ( ~ ( element @ SY539 @ SV253 )
            | ( in @ SY539 @ SV253 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1185]) ).

thf(1283,plain,
    ! [SV254: $i] :
      ( ( ( empty @ SV254 )
        | ! [SY540: $i] :
            ( ~ ( in @ SY540 @ SV254 )
            | ( element @ SY540 @ SV254 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1186]) ).

thf(1284,plain,
    ! [SV255: $i] :
      ( ( ~ ( empty @ SV255 )
        | ! [SY541: $i] :
            ( ~ ( element @ SY541 @ SV255 )
            | ( empty @ SY541 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1187]) ).

thf(1285,plain,
    ! [SV256: $i] :
      ( ( ~ ( empty @ SV256 )
        | ! [SY542: $i] :
            ( ~ ( empty @ SY542 )
            | ( element @ SY542 @ SV256 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1188]) ).

thf(1286,plain,
    ! [SV152: $i,SV257: $i] :
      ( ( ( ~ ( in @ SV257 @ SV152 ) )
        = $true )
      | ( ( SV152 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1189]) ).

thf(1287,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
              | ~ ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) )
          | ~ ( ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
              | ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) ) )
        = $false )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1190]) ).

thf(1288,plain,
    ! [SV154: $i,SV200: $i] :
      ( ( ( SV200
          = ( powerset @ SV154 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY502: $i] :
                    ( ~ ( in @ SY502 @ SV200 )
                    | ( subset @ SY502 @ SV154 ) )
              | ~ ! [SY503: $i] :
                    ( ~ ( subset @ SY503 @ SV154 )
                    | ( in @ SY503 @ SV200 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1191]) ).

thf(1289,plain,
    ! [SV202: $i,SV156: $i,SV258: $i] :
      ( ( ( ~ ( in @ SV258 @ ( set_intersection2 @ SV156 @ SV202 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV156 @ SV202 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1193]) ).

thf(1290,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ~ ( ! [SY505: $i] :
                  ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SY505 )
                  | ~ ( in @ SY505 @ SV157 ) )
              | ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
          | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ ( sK18_SY276 @ SV203 @ SV157 ) )
                  | ~ ( in @ ( sK18_SY276 @ SV203 @ SV157 ) @ SV157 ) )
              | ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) ) )
        = $false )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1194]) ).

thf(1291,plain,
    ! [SV158: $i,SV204: $i] :
      ( ( ( SV204
          = ( union @ SV158 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY506: $i] :
                    ( ! [SY452: $i] :
                        ( ~ ( in @ SY506 @ SY452 )
                        | ~ ( in @ SY452 @ SV158 ) )
                    | ( in @ SY506 @ SV204 ) )
              | ~ ! [SY508: $i] :
                    ( ~ ( in @ SY508 @ SV204 )
                    | ~ ( ~ ( in @ SY508 @ ( sK16_D @ SY508 @ SV204 @ SV158 ) )
                        | ~ ( in @ ( sK16_D @ SY508 @ SV204 @ SV158 ) @ SV158 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1195]) ).

thf(1292,plain,
    ! [SV161: $i,SV205: $i] :
      ( ( ( ~ ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV161 )
          | ~ ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV205 ) )
        = $false )
      | ( ( disjoint @ SV161 @ SV205 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1199]) ).

thf(1293,plain,
    ! [SV206: $i,SV162: $i,SV259: $i] :
      ( ( ( ~ ( in @ SV259 @ SV162 )
          | ~ ( in @ SV259 @ SV206 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV162 @ SV206 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1200]) ).

thf(1294,plain,
    ! [SV207: $i,SV163: $i] :
      ( ( ( ( set_difference @ SV163 @ SV207 )
          = empty_set )
        = $false )
      | ( ( subset @ SV163 @ SV207 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1201]) ).

thf(1295,plain,
    ! [SV208: $i,SV164: $i] :
      ( ( ( subset @ SV164 @ SV208 )
        = $false )
      | ( ( ( set_difference @ SV164 @ SV208 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1202]) ).

thf(1296,plain,
    ! [SV78: $i,SV260: $i] :
      ( ( ( ~ ( relation @ SV260 )
          | ~ ( subset @ SV78 @ SV260 )
          | ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SV260 ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1203]) ).

thf(1297,plain,
    ! [SV78: $i,SV261: $i] :
      ( ( ( ~ ( relation @ SV261 )
          | ~ ( subset @ SV78 @ SV261 )
          | ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SV261 ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1204]) ).

thf(1298,plain,
    ! [SV79: $i,SV209: $i] :
      ( ( ( ~ ( subset @ SV209 @ ( sK35_B @ SV79 ) ) )
        = $true )
      | ( ( are_equipotent @ SV209 @ ( sK35_B @ SV79 ) )
        = $true )
      | ( ( in @ SV209 @ ( sK35_B @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1205]) ).

thf(1299,plain,
    ! [SV79: $i] :
      ( ( ! [SY382: $i] :
            ( ~ ( in @ SY382 @ ( sK35_B @ SV79 ) )
            | ( in @ ( powerset @ SY382 ) @ ( sK35_B @ SV79 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1206]) ).

thf(1300,plain,
    ! [SV79: $i] :
      ( ( ~ ( ~ ! [SY383: $i,SY384: $i] :
                  ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
                  | ~ ( subset @ SY384 @ SY383 )
                  | ( in @ SY384 @ ( sK35_B @ SV79 ) ) )
            | ~ ( in @ SV79 @ ( sK35_B @ SV79 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1207]) ).

thf(1301,plain,
    ! [SV210: $i,SV165: $i] :
      ( ( ( element @ SV165 @ ( powerset @ SV210 ) )
        = $false )
      | ( ( subset @ SV165 @ SV210 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1208]) ).

thf(1302,plain,
    ! [SV211: $i,SV166: $i] :
      ( ( ( subset @ SV166 @ SV211 )
        = $false )
      | ( ( element @ SV166 @ ( powerset @ SV211 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1209]) ).

thf(1303,plain,
    ! [SV212: $i,SV167: $i] :
      ( ( ( ~ ( subset @ SV167 @ SV212 ) )
        = $true )
      | ( ( ~ ( subset @ SV212 @ SV167 ) )
        = $true )
      | ( ( SV167 = SV212 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1210]) ).

thf(1304,plain,
    ! [SV262: $i] :
      ( ( ! [SY543: $i] :
            ( ( SV262 != SY543 )
            | ( subset @ SV262 @ SY543 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1211]) ).

thf(1305,plain,
    ! [SV263: $i] :
      ( ( ! [SY544: $i] :
            ( ( SV263 != SY544 )
            | ( subset @ SY544 @ SV263 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1212]) ).

thf(1306,plain,
    ! [SV213: $i,SV168: $i] :
      ( ( ( ( set_intersection2 @ SV168 @ SV213 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV168 @ SV213 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1213]) ).

thf(1307,plain,
    ! [SV214: $i,SV169: $i] :
      ( ( ( disjoint @ SV169 @ SV214 )
        = $false )
      | ( ( ( set_intersection2 @ SV169 @ SV214 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1214]) ).

thf(1308,plain,
    ! [SV80: $i,SV133: $i] :
      ( ( ( in @ ( sK36_C @ SV133 @ SV80 ) @ SV133 )
        = $false )
      | ( ( element @ SV80 @ ( powerset @ SV133 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1216]) ).

thf(1309,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
                  | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
                  | ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
              | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
                        | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
                    | ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
                        | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) ) ) ) )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1217]) ).

thf(1310,plain,
    ! [SV216: $i,SV81: $i,SV247: $i] :
      ( ( ( ( SV247
           != ( set_difference @ SV81 @ SV216 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY532: $i] :
                    ( ~ ( in @ SY532 @ SV81 )
                    | ( in @ SY532 @ SV216 )
                    | ( in @ SY532 @ SV247 ) )
              | ~ ~ ( ~ ! [SY533: $i] :
                          ( ~ ( in @ SY533 @ SV247 )
                          | ( in @ SY533 @ SV81 ) )
                    | ~ ! [SY534: $i] :
                          ( ~ ( in @ SY534 @ SV247 )
                          | ~ ( in @ SY534 @ SV216 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1218]) ).

thf(1311,plain,
    ! [SV82: $i,SV264: $i] :
      ( ( ( ~ ( ~ ( ! [SY545: $i] :
                      ~ ( in @ ( ordered_pair @ SY545 @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
                  | ~ ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV264 @ SV82 ) @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
                  | ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) ) )
          | ( SV264
            = ( relation_rng @ SV82 ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1219]) ).

thf(1312,plain,
    ! [SV82: $i,SV265: $i] :
      ( ( ( ( SV265
           != ( relation_rng @ SV82 ) )
          | ~ ( ~ ! [SY546: $i] :
                    ( ! [SY397: $i] :
                        ~ ( in @ ( ordered_pair @ SY397 @ SY546 ) @ SV82 )
                    | ( in @ SY546 @ SV265 ) )
              | ~ ! [SY548: $i] :
                    ( ~ ( in @ SY548 @ SV265 )
                    | ( in @ ( ordered_pair @ ( sK12_D @ SY548 @ SV265 @ SV82 ) @ SY548 ) @ SV82 ) ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1220]) ).

thf(1313,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 ) )
        = $true )
      | ( ( ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) )
        = $true )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1221]) ).

thf(1314,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
        = $true )
      | ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 )
        = $true )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1222]) ).

thf(1315,plain,
    ! [SV266: $i] :
      ( ( ( SV266 = empty_set )
        | ! [SY549: $i] :
            ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SY549 @ SV266 ) @ SV266 )
                        | ~ ~ ( in @ ( sK39_C @ SY549 @ SV266 ) @ ( sK40_SY287 @ SY549 @ SV266 ) ) )
                    | ~ ( in @ ( sK39_C @ SY549 @ SV266 ) @ SY549 ) )
                | ~ ( ! [SY550: $i] :
                        ( ~ ( in @ SY550 @ SV266 )
                        | ( in @ ( sK39_C @ SY549 @ SV266 ) @ SY550 ) )
                    | ( in @ ( sK39_C @ SY549 @ SV266 ) @ SY549 ) ) )
            | ( SY549
              = ( set_meet @ SV266 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1223]) ).

thf(1316,plain,
    ! [SV267: $i] :
      ( ( ( SV267 = empty_set )
        | ! [SY551: $i] :
            ( ( SY551
             != ( set_meet @ SV267 ) )
            | ~ ( ~ ! [SY552: $i] :
                      ( ~ ( ~ ( in @ ( sK38_D @ SY552 @ SY551 @ SV267 ) @ SV267 )
                          | ~ ~ ( in @ SY552 @ ( sK38_D @ SY552 @ SY551 @ SV267 ) ) )
                      | ( in @ SY552 @ SY551 ) )
                | ~ ! [SY553: $i] :
                      ( ~ ( in @ SY553 @ SY551 )
                      | ! [SY554: $i] :
                          ( ~ ( in @ SY554 @ SV267 )
                          | ( in @ SY553 @ SY554 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1224]) ).

thf(1317,plain,
    ! [SV268: $i] :
      ( ( ( SV268 != empty_set )
        | ! [SY555: $i] :
            ( ( SY555
             != ( set_meet @ SV268 ) )
            | ( SY555 = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1225]) ).

thf(1318,plain,
    ! [SV269: $i] :
      ( ( ( SV269 != empty_set )
        | ! [SY556: $i] :
            ( ( SY556 != empty_set )
            | ( SY556
              = ( set_meet @ SV269 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1226]) ).

thf(1319,plain,
    ! [SV217: $i,SV170: $i] :
      ( ( ( SV170 = SV217 )
        = $true )
      | ( ( ~ ( subset @ SV170 @ SV217 ) )
        = $true )
      | ( ( proper_subset @ SV170 @ SV217 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1227]) ).

thf(1320,plain,
    ! [SV270: $i] :
      ( ( ! [SY557: $i] :
            ( ~ ( proper_subset @ SV270 @ SY557 )
            | ( SV270 != SY557 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1228]) ).

thf(1321,plain,
    ! [SV271: $i] :
      ( ( ! [SY558: $i] :
            ( ~ ( proper_subset @ SV271 @ SY558 )
            | ( subset @ SV271 @ SY558 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1229]) ).

thf(1322,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( ~ ( relation @ SV272 )
          | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
                  | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
                  | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) ) )
          | ( SV272
            = ( relation_inverse @ SV84 ) ) )
        = $true )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1230]) ).

thf(1323,plain,
    ! [SV84: $i,SV273: $i] :
      ( ( ( ~ ( relation @ SV273 )
          | ( SV273
           != ( relation_inverse @ SV84 ) )
          | ~ ( ~ ! [SY559: $i,SY560: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY559 @ SY560 ) @ SV273 )
                    | ( in @ ( ordered_pair @ SY560 @ SY559 ) @ SV84 ) )
              | ~ ! [SY561: $i,SY562: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY562 @ SY561 ) @ SV84 )
                    | ( in @ ( ordered_pair @ SY561 @ SY562 ) @ SV273 ) ) ) )
        = $true )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1231]) ).

thf(1324,plain,
    ! [SV85: $i,SV218: $i] :
      ( ( ( ~ ( subset @ SV218 @ ( sK1_B @ SV85 ) ) )
        = $true )
      | ( ( are_equipotent @ SV218 @ ( sK1_B @ SV85 ) )
        = $true )
      | ( ( in @ SV218 @ ( sK1_B @ SV85 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1232]) ).

thf(1325,plain,
    ! [SV85: $i] :
      ( ( ! [SY407: $i] :
            ( ~ ( ~ ! [SY408: $i] :
                      ( ~ ( subset @ SY408 @ SY407 )
                      | ( in @ SY408 @ ( sK2_SY267 @ SY407 @ SV85 ) ) )
                | ~ ( in @ ( sK2_SY267 @ SY407 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
            | ~ ( in @ SY407 @ ( sK1_B @ SV85 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1233]) ).

thf(1326,plain,
    ! [SV85: $i] :
      ( ( ~ ( ~ ! [SY409: $i,SY410: $i] :
                  ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
                  | ~ ( subset @ SY410 @ SY409 )
                  | ( in @ SY410 @ ( sK1_B @ SV85 ) ) )
            | ~ ( in @ SV85 @ ( sK1_B @ SV85 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1234]) ).

thf(1327,plain,
    ! [SV219: $i,SV171: $i] :
      ( ( ( ( set_difference @ SV171 @ SV219 )
          = SV171 )
        = $false )
      | ( ( disjoint @ SV171 @ SV219 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1235]) ).

thf(1328,plain,
    ! [SV220: $i,SV172: $i] :
      ( ( ( disjoint @ SV172 @ SV220 )
        = $false )
      | ( ( ( set_difference @ SV172 @ SV220 )
          = SV172 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1236]) ).

thf(1329,plain,
    ! [SV173: $i] :
      ( ( ( ~ ! [SY467: $i,SY468: $i] :
                ( ( sK30_B @ SV173 )
               != ( ordered_pair @ SY467 @ SY468 ) ) )
        = $false )
      | ( ( relation @ SV173 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1237]) ).

thf(1330,plain,
    ! [SV173: $i] :
      ( ( ( ~ ( in @ ( sK30_B @ SV173 ) @ SV173 ) )
        = $false )
      | ( ( relation @ SV173 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1237]) ).

thf(1331,plain,
    ! [SV174: $i,SV274: $i] :
      ( ( ( ( SV274
            = ( ordered_pair @ ( sK28_C @ SV274 @ SV174 ) @ ( sK29_SY279 @ SV274 @ SV174 ) ) )
          | ~ ( in @ SV274 @ SV174 ) )
        = $true )
      | ( ( relation @ SV174 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1238]) ).

thf(1332,plain,
    ! [SV221: $i,SV87: $i] :
      ( ( ( subset @ SV87 @ SV221 )
        = $false )
      | ( ( ! [SY515: $i] : ( subset @ ( cartesian_product2 @ SV87 @ SY515 ) @ ( cartesian_product2 @ SV221 @ SY515 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1239]) ).

thf(1333,plain,
    ! [SV222: $i,SV87: $i] :
      ( ( ( subset @ SV87 @ SV222 )
        = $false )
      | ( ( ! [SY516: $i] : ( subset @ ( cartesian_product2 @ SY516 @ SV87 ) @ ( cartesian_product2 @ SY516 @ SV222 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1240]) ).

thf(1334,plain,
    ! [SV223: $i,SV175: $i] :
      ( ( ( in @ SV175 @ SV223 )
        = $false )
      | ( ( subset @ ( singleton @ SV175 ) @ SV223 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1241]) ).

thf(1335,plain,
    ! [SV224: $i,SV176: $i] :
      ( ( ( subset @ ( singleton @ SV176 ) @ SV224 )
        = $false )
      | ( ( in @ SV176 @ SV224 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1242]) ).

thf(1336,plain,
    ! [SV177: $i,SV225: $i] :
      ( ( ( ~ ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV177 )
          | ~ ~ ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV225 ) )
        = $false )
      | ( ( subset @ SV177 @ SV225 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1243]) ).

thf(1337,plain,
    ! [SV226: $i,SV178: $i] :
      ( ( ( subset @ SV178 @ SV226 )
        = $false )
      | ( ( ! [SY517: $i] :
              ( ~ ( in @ SY517 @ SV178 )
              | ( in @ SY517 @ SV226 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1244]) ).

thf(1338,plain,
    ! [SV227: $i,SV179: $i] :
      ( ( ( subset @ SV179 @ ( singleton @ SV227 ) )
        = $false )
      | ( ( ( SV179 = empty_set )
          | ( SV179
            = ( singleton @ SV227 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1245]) ).

thf(1339,plain,
    ! [SV275: $i] :
      ( ( ( SV275 != empty_set )
        | ! [SY563: $i] : ( subset @ SV275 @ ( singleton @ SY563 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1246]) ).

thf(1340,plain,
    ! [SV276: $i] :
      ( ( ! [SY564: $i] :
            ( ( SV276
             != ( singleton @ SY564 ) )
            | ( subset @ SV276 @ ( singleton @ SY564 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1247]) ).

thf(1341,plain,
    ! [SV228: $i,SV248: $i,SV88: $i] :
      ( ( ( ~ ( in @ SV88 @ SV248 )
          | ~ ( in @ SV228 @ SV248 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV88 @ SV228 ) @ SV248 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1248]) ).

thf(1342,plain,
    ! [SV88: $i] :
      ( ( ! [SY417: $i,SY418: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV88 @ SY417 ) @ SY418 )
            | ( in @ SV88 @ SY418 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1249]) ).

thf(1343,plain,
    ! [SV88: $i] :
      ( ( ! [SY419: $i,SY420: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV88 @ SY419 ) @ SY420 )
            | ( in @ SY419 @ SY420 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1250]) ).

thf(1344,plain,
    ! [SV229: $i,SV180: $i] :
      ( ( ( ( set_difference @ SV180 @ SV229 )
          = empty_set )
        = $false )
      | ( ( subset @ SV180 @ SV229 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1251]) ).

thf(1345,plain,
    ! [SV230: $i,SV181: $i] :
      ( ( ( subset @ SV181 @ SV230 )
        = $false )
      | ( ( ( set_difference @ SV181 @ SV230 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1252]) ).

thf(1346,plain,
    ! [SV231: $i,SV182: $i] :
      ( ( ( subset @ SV182 @ ( singleton @ SV231 ) )
        = $false )
      | ( ( ( SV182 = empty_set )
          | ( SV182
            = ( singleton @ SV231 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1253]) ).

thf(1347,plain,
    ! [SV277: $i] :
      ( ( ( SV277 != empty_set )
        | ! [SY565: $i] : ( subset @ SV277 @ ( singleton @ SY565 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1254]) ).

thf(1348,plain,
    ! [SV278: $i] :
      ( ( ! [SY566: $i] :
            ( ( SV278
             != ( singleton @ SY566 ) )
            | ( subset @ SV278 @ ( singleton @ SY566 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1255]) ).

thf(1349,plain,
    ! [SV232: $i,SV183: $i] :
      ( ( ( in @ SV183 @ SV232 )
        = $false )
      | ( ( subset @ ( singleton @ SV183 ) @ SV232 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1256]) ).

thf(1350,plain,
    ! [SV233: $i,SV184: $i] :
      ( ( ( subset @ ( singleton @ SV184 ) @ SV233 )
        = $false )
      | ( ( in @ SV184 @ SV233 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1257]) ).

thf(1351,plain,
    ! [SV234: $i,SV185: $i] :
      ( ( ( ( set_difference @ SV185 @ ( singleton @ SV234 ) )
          = SV185 )
        = $false )
      | ( ( ~ ( in @ SV234 @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1258]) ).

thf(1352,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( ~ ( ( ( sK27_C @ SV236 @ SV187 )
               != SV187 )
              | ~ ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) )
          | ~ ( ( ( sK27_C @ SV236 @ SV187 )
                = SV187 )
              | ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) ) )
        = $false )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1260]) ).

thf(1353,plain,
    ! [SV188: $i,SV237: $i] :
      ( ( ( SV237
          = ( singleton @ SV188 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY519: $i] :
                    ( ( SY519 != SV188 )
                    | ( in @ SY519 @ SV237 ) )
              | ~ ! [SY520: $i] :
                    ( ~ ( in @ SY520 @ SV237 )
                    | ( SY520 = SV188 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1261]) ).

thf(1354,plain,
    ! [SV238: $i,SV89: $i,SV249: $i] :
      ( ( ( ~ ( relation @ SV249 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV89 @ SV238 ) @ SV249 )
          | ( in @ SV89 @ ( relation_dom @ SV249 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1262]) ).

thf(1355,plain,
    ! [SV239: $i,SV89: $i,SV250: $i] :
      ( ( ( ~ ( relation @ SV250 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV89 @ SV239 ) @ SV250 )
          | ( in @ SV239 @ ( relation_rng @ SV250 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1263]) ).

thf(1356,plain,
    ! [SV96: $i,SV17: $i,SV145: $i,SV135: $i] :
      ( ( ( subset @ SV135 @ SV145 )
        = $false )
      | ( ( subset @ SV17 @ SV96 )
        = $false )
      | ( ( subset @ ( cartesian_product2 @ SV17 @ SV135 ) @ ( cartesian_product2 @ SV96 @ SV145 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1265]) ).

thf(1357,plain,
    ! [SV148: $i,SV32: $i] :
      ( ( ( subset @ ( relation_rng @ SV32 ) @ ( relation_dom @ SV148 ) )
        = $false )
      | ( ( ( relation_dom @ ( relation_composition @ SV32 @ SV148 ) )
          = ( relation_dom @ SV32 ) )
        = $true )
      | ( ( relation @ SV148 )
        = $false )
      | ( ( relation @ SV32 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1268]) ).

thf(1358,plain,
    ! [SV149: $i,SV34: $i] :
      ( ( ( subset @ ( relation_dom @ SV34 ) @ ( relation_rng @ SV149 ) )
        = $false )
      | ( ( ( relation_rng @ ( relation_composition @ SV149 @ SV34 ) )
          = ( relation_rng @ SV34 ) )
        = $true )
      | ( ( relation @ SV149 )
        = $false )
      | ( ( relation @ SV34 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1269]) ).

thf(1359,plain,
    ! [SV70: $i,SV130: $i,SV144: $i] :
      ( ( ( empty @ SV144 )
        = $false )
      | ( ( element @ SV130 @ ( powerset @ SV144 ) )
        = $false )
      | ( ( in @ SV70 @ SV130 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1273]) ).

thf(1360,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                    | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) )
                | ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                    | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) )
          | ~ ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
              | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 )
              | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) )
        = $false )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1274]) ).

thf(1361,plain,
    ! [SV194: $i,SV73: $i,SV241: $i] :
      ( ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY523: $i] :
                    ( ~ ( in @ SY523 @ SV241 )
                    | ( in @ SY523 @ SV73 )
                    | ( in @ SY523 @ SV194 ) )
              | ~ ~ ( ~ ! [SY524: $i] :
                          ( ~ ( in @ SY524 @ SV73 )
                          | ( in @ SY524 @ SV241 ) )
                    | ~ ! [SY525: $i] :
                          ( ~ ( in @ SY525 @ SV194 )
                          | ( in @ SY525 @ SV241 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1275]) ).

thf(1362,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                    | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                     != SV74 ) )
                | ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                    | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                     != SV195 ) ) )
          | ~ ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
              | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                = SV74 )
              | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                = SV195 ) ) )
        = $false )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1276]) ).

thf(1363,plain,
    ! [SV196: $i,SV74: $i,SV243: $i] :
      ( ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY526: $i] :
                    ( ~ ( in @ SY526 @ SV243 )
                    | ( SY526 = SV74 )
                    | ( SY526 = SV196 ) )
              | ~ ~ ( ~ ! [SY527: $i] :
                          ( ( SY527 != SV74 )
                          | ( in @ SY527 @ SV243 ) )
                    | ~ ! [SY528: $i] :
                          ( ( SY528 != SV196 )
                          | ( in @ SY528 @ SV243 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1277]) ).

thf(1364,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
              | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
              | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
          | ~ ~ ( ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
                    | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
                | ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
                    | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) ) ) )
        = $false )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1278]) ).

thf(1365,plain,
    ! [SV198: $i,SV75: $i,SV245: $i] :
      ( ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY529: $i] :
                    ( ~ ( in @ SY529 @ SV75 )
                    | ~ ( in @ SY529 @ SV198 )
                    | ( in @ SY529 @ SV245 ) )
              | ~ ~ ( ~ ! [SY530: $i] :
                          ( ~ ( in @ SY530 @ SV245 )
                          | ( in @ SY530 @ SV75 ) )
                    | ~ ! [SY531: $i] :
                          ( ~ ( in @ SY531 @ SV245 )
                          | ( in @ SY531 @ SV198 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1279]) ).

thf(1366,plain,
    ! [SV76: $i,SV251: $i] :
      ( ( ( ~ ( ~ ( ! [SY535: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ SY535 ) @ SV76 )
                  | ~ ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ ( sK21_SY278 @ SV251 @ SV76 ) ) @ SV76 )
                  | ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) ) ) )
        = $true )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1280]) ).

thf(1367,plain,
    ! [SV76: $i,SV252: $i] :
      ( ( ( ( SV252
           != ( relation_dom @ SV76 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY536: $i] :
                    ( ! [SY377: $i] :
                        ~ ( in @ ( ordered_pair @ SY536 @ SY377 ) @ SV76 )
                    | ( in @ SY536 @ SV252 ) )
              | ~ ! [SY538: $i] :
                    ( ~ ( in @ SY538 @ SV252 )
                    | ( in @ ( ordered_pair @ SY538 @ ( sK19_D @ SY538 @ SV252 @ SV76 ) ) @ SV76 ) ) ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1281]) ).

thf(1368,plain,
    ! [SV253: $i] :
      ( ( ( empty @ SV253 )
        = $true )
      | ( ( ! [SY539: $i] :
              ( ~ ( element @ SY539 @ SV253 )
              | ( in @ SY539 @ SV253 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1282]) ).

thf(1369,plain,
    ! [SV254: $i] :
      ( ( ( empty @ SV254 )
        = $true )
      | ( ( ! [SY540: $i] :
              ( ~ ( in @ SY540 @ SV254 )
              | ( element @ SY540 @ SV254 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1283]) ).

thf(1370,plain,
    ! [SV255: $i] :
      ( ( ( ~ ( empty @ SV255 ) )
        = $true )
      | ( ( ! [SY541: $i] :
              ( ~ ( element @ SY541 @ SV255 )
              | ( empty @ SY541 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1284]) ).

thf(1371,plain,
    ! [SV256: $i] :
      ( ( ( ~ ( empty @ SV256 ) )
        = $true )
      | ( ( ! [SY542: $i] :
              ( ~ ( empty @ SY542 )
              | ( element @ SY542 @ SV256 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1285]) ).

thf(1372,plain,
    ! [SV152: $i,SV257: $i] :
      ( ( ( in @ SV257 @ SV152 )
        = $false )
      | ( ( SV152 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1286]) ).

thf(1373,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
              | ~ ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) ) )
        = $false )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1287]) ).

thf(1374,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( ~ ( ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
              | ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) ) )
        = $false )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1287]) ).

thf(1375,plain,
    ! [SV154: $i,SV200: $i] :
      ( ( ( ~ ! [SY502: $i] :
                ( ~ ( in @ SY502 @ SV200 )
                | ( subset @ SY502 @ SV154 ) )
          | ~ ! [SY503: $i] :
                ( ~ ( subset @ SY503 @ SV154 )
                | ( in @ SY503 @ SV200 ) ) )
        = $false )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1288]) ).

thf(1376,plain,
    ! [SV202: $i,SV156: $i,SV258: $i] :
      ( ( ( in @ SV258 @ ( set_intersection2 @ SV156 @ SV202 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV156 @ SV202 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1289]) ).

thf(1377,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ~ ( ! [SY505: $i] :
                  ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SY505 )
                  | ~ ( in @ SY505 @ SV157 ) )
              | ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) ) )
        = $false )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1290]) ).

thf(1378,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ ( sK18_SY276 @ SV203 @ SV157 ) )
                  | ~ ( in @ ( sK18_SY276 @ SV203 @ SV157 ) @ SV157 ) )
              | ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) ) )
        = $false )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1290]) ).

thf(1379,plain,
    ! [SV204: $i,SV158: $i] :
      ( ( ( ~ ! [SY506: $i] :
                ( ! [SY452: $i] :
                    ( ~ ( in @ SY506 @ SY452 )
                    | ~ ( in @ SY452 @ SV158 ) )
                | ( in @ SY506 @ SV204 ) )
          | ~ ! [SY508: $i] :
                ( ~ ( in @ SY508 @ SV204 )
                | ~ ( ~ ( in @ SY508 @ ( sK16_D @ SY508 @ SV204 @ SV158 ) )
                    | ~ ( in @ ( sK16_D @ SY508 @ SV204 @ SV158 ) @ SV158 ) ) ) )
        = $false )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1291]) ).

thf(1380,plain,
    ! [SV161: $i,SV205: $i] :
      ( ( ( ~ ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV161 ) )
        = $false )
      | ( ( disjoint @ SV161 @ SV205 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1292]) ).

thf(1381,plain,
    ! [SV161: $i,SV205: $i] :
      ( ( ( ~ ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV205 ) )
        = $false )
      | ( ( disjoint @ SV161 @ SV205 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1292]) ).

thf(1382,plain,
    ! [SV206: $i,SV162: $i,SV259: $i] :
      ( ( ( ~ ( in @ SV259 @ SV162 ) )
        = $true )
      | ( ( ~ ( in @ SV259 @ SV206 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV162 @ SV206 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1293]) ).

thf(1383,plain,
    ! [SV78: $i,SV260: $i] :
      ( ( ( ~ ( relation @ SV260 ) )
        = $true )
      | ( ( ~ ( subset @ SV78 @ SV260 )
          | ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SV260 ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1296]) ).

thf(1384,plain,
    ! [SV78: $i,SV261: $i] :
      ( ( ( ~ ( relation @ SV261 ) )
        = $true )
      | ( ( ~ ( subset @ SV78 @ SV261 )
          | ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SV261 ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1297]) ).

thf(1385,plain,
    ! [SV79: $i,SV209: $i] :
      ( ( ( subset @ SV209 @ ( sK35_B @ SV79 ) )
        = $false )
      | ( ( are_equipotent @ SV209 @ ( sK35_B @ SV79 ) )
        = $true )
      | ( ( in @ SV209 @ ( sK35_B @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1298]) ).

thf(1386,plain,
    ! [SV79: $i,SV279: $i] :
      ( ( ~ ( in @ SV279 @ ( sK35_B @ SV79 ) )
        | ( in @ ( powerset @ SV279 ) @ ( sK35_B @ SV79 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1299]) ).

thf(1387,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY383: $i,SY384: $i] :
              ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
              | ~ ( subset @ SY384 @ SY383 )
              | ( in @ SY384 @ ( sK35_B @ SV79 ) ) )
        | ~ ( in @ SV79 @ ( sK35_B @ SV79 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1300]) ).

thf(1388,plain,
    ! [SV212: $i,SV167: $i] :
      ( ( ( subset @ SV167 @ SV212 )
        = $false )
      | ( ( ~ ( subset @ SV212 @ SV167 ) )
        = $true )
      | ( ( SV167 = SV212 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1303]) ).

thf(1389,plain,
    ! [SV280: $i,SV262: $i] :
      ( ( ( SV262 != SV280 )
        | ( subset @ SV262 @ SV280 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1304]) ).

thf(1390,plain,
    ! [SV281: $i,SV263: $i] :
      ( ( ( SV263 != SV281 )
        | ( subset @ SV281 @ SV263 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1305]) ).

thf(1391,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
              | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
              | ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
          | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
                    | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
                | ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
                    | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) ) ) )
        = $false )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1309]) ).

thf(1392,plain,
    ! [SV216: $i,SV81: $i,SV247: $i] :
      ( ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY532: $i] :
                    ( ~ ( in @ SY532 @ SV81 )
                    | ( in @ SY532 @ SV216 )
                    | ( in @ SY532 @ SV247 ) )
              | ~ ~ ( ~ ! [SY533: $i] :
                          ( ~ ( in @ SY533 @ SV247 )
                          | ( in @ SY533 @ SV81 ) )
                    | ~ ! [SY534: $i] :
                          ( ~ ( in @ SY534 @ SV247 )
                          | ~ ( in @ SY534 @ SV216 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1310]) ).

thf(1393,plain,
    ! [SV82: $i,SV264: $i] :
      ( ( ( ~ ( ~ ( ! [SY545: $i] :
                      ~ ( in @ ( ordered_pair @ SY545 @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
                  | ~ ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV264 @ SV82 ) @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
                  | ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) ) ) )
        = $true )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1311]) ).

thf(1394,plain,
    ! [SV82: $i,SV265: $i] :
      ( ( ( ( SV265
           != ( relation_rng @ SV82 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY546: $i] :
                    ( ! [SY397: $i] :
                        ~ ( in @ ( ordered_pair @ SY397 @ SY546 ) @ SV82 )
                    | ( in @ SY546 @ SV265 ) )
              | ~ ! [SY548: $i] :
                    ( ~ ( in @ SY548 @ SV265 )
                    | ( in @ ( ordered_pair @ ( sK12_D @ SY548 @ SV265 @ SV82 ) @ SY548 ) @ SV82 ) ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1312]) ).

thf(1395,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
        = $false )
      | ( ( ~ ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 ) )
        = $true )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1313]) ).

thf(1396,plain,
    ! [SV266: $i] :
      ( ( ( SV266 = empty_set )
        = $true )
      | ( ( ! [SY549: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SY549 @ SV266 ) @ SV266 )
                          | ~ ~ ( in @ ( sK39_C @ SY549 @ SV266 ) @ ( sK40_SY287 @ SY549 @ SV266 ) ) )
                      | ~ ( in @ ( sK39_C @ SY549 @ SV266 ) @ SY549 ) )
                  | ~ ( ! [SY550: $i] :
                          ( ~ ( in @ SY550 @ SV266 )
                          | ( in @ ( sK39_C @ SY549 @ SV266 ) @ SY550 ) )
                      | ( in @ ( sK39_C @ SY549 @ SV266 ) @ SY549 ) ) )
              | ( SY549
                = ( set_meet @ SV266 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1315]) ).

thf(1397,plain,
    ! [SV267: $i] :
      ( ( ( SV267 = empty_set )
        = $true )
      | ( ( ! [SY551: $i] :
              ( ( SY551
               != ( set_meet @ SV267 ) )
              | ~ ( ~ ! [SY552: $i] :
                        ( ~ ( ~ ( in @ ( sK38_D @ SY552 @ SY551 @ SV267 ) @ SV267 )
                            | ~ ~ ( in @ SY552 @ ( sK38_D @ SY552 @ SY551 @ SV267 ) ) )
                        | ( in @ SY552 @ SY551 ) )
                  | ~ ! [SY553: $i] :
                        ( ~ ( in @ SY553 @ SY551 )
                        | ! [SY554: $i] :
                            ( ~ ( in @ SY554 @ SV267 )
                            | ( in @ SY553 @ SY554 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1316]) ).

thf(1398,plain,
    ! [SV268: $i] :
      ( ( ( ( SV268 != empty_set ) )
        = $true )
      | ( ( ! [SY555: $i] :
              ( ( SY555
               != ( set_meet @ SV268 ) )
              | ( SY555 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1317]) ).

thf(1399,plain,
    ! [SV269: $i] :
      ( ( ( ( SV269 != empty_set ) )
        = $true )
      | ( ( ! [SY556: $i] :
              ( ( SY556 != empty_set )
              | ( SY556
                = ( set_meet @ SV269 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1318]) ).

thf(1400,plain,
    ! [SV217: $i,SV170: $i] :
      ( ( ( subset @ SV170 @ SV217 )
        = $false )
      | ( ( SV170 = SV217 )
        = $true )
      | ( ( proper_subset @ SV170 @ SV217 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1319]) ).

thf(1401,plain,
    ! [SV282: $i,SV270: $i] :
      ( ( ~ ( proper_subset @ SV270 @ SV282 )
        | ( SV270 != SV282 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1320]) ).

thf(1402,plain,
    ! [SV283: $i,SV271: $i] :
      ( ( ~ ( proper_subset @ SV271 @ SV283 )
        | ( subset @ SV271 @ SV283 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1321]) ).

thf(1403,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( ~ ( relation @ SV272 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
                  | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
                  | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) ) )
          | ( SV272
            = ( relation_inverse @ SV84 ) ) )
        = $true )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1322]) ).

thf(1404,plain,
    ! [SV84: $i,SV273: $i] :
      ( ( ( ~ ( relation @ SV273 ) )
        = $true )
      | ( ( ( SV273
           != ( relation_inverse @ SV84 ) )
          | ~ ( ~ ! [SY559: $i,SY560: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY559 @ SY560 ) @ SV273 )
                    | ( in @ ( ordered_pair @ SY560 @ SY559 ) @ SV84 ) )
              | ~ ! [SY561: $i,SY562: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY562 @ SY561 ) @ SV84 )
                    | ( in @ ( ordered_pair @ SY561 @ SY562 ) @ SV273 ) ) ) )
        = $true )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1323]) ).

thf(1405,plain,
    ! [SV85: $i,SV218: $i] :
      ( ( ( subset @ SV218 @ ( sK1_B @ SV85 ) )
        = $false )
      | ( ( are_equipotent @ SV218 @ ( sK1_B @ SV85 ) )
        = $true )
      | ( ( in @ SV218 @ ( sK1_B @ SV85 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1324]) ).

thf(1406,plain,
    ! [SV85: $i,SV284: $i] :
      ( ( ~ ( ~ ! [SY567: $i] :
                  ( ~ ( subset @ SY567 @ SV284 )
                  | ( in @ SY567 @ ( sK2_SY267 @ SV284 @ SV85 ) ) )
            | ~ ( in @ ( sK2_SY267 @ SV284 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
        | ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1325]) ).

thf(1407,plain,
    ! [SV85: $i] :
      ( ( ~ ! [SY409: $i,SY410: $i] :
              ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
              | ~ ( subset @ SY410 @ SY409 )
              | ( in @ SY410 @ ( sK1_B @ SV85 ) ) )
        | ~ ( in @ SV85 @ ( sK1_B @ SV85 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1326]) ).

thf(1408,plain,
    ! [SV173: $i] :
      ( ( ( ! [SY467: $i,SY468: $i] :
              ( ( sK30_B @ SV173 )
             != ( ordered_pair @ SY467 @ SY468 ) ) )
        = $true )
      | ( ( relation @ SV173 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1329]) ).

thf(1409,plain,
    ! [SV173: $i] :
      ( ( ( in @ ( sK30_B @ SV173 ) @ SV173 )
        = $true )
      | ( ( relation @ SV173 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1330]) ).

thf(1410,plain,
    ! [SV174: $i,SV274: $i] :
      ( ( ( SV274
          = ( ordered_pair @ ( sK28_C @ SV274 @ SV174 ) @ ( sK29_SY279 @ SV274 @ SV174 ) ) )
        = $true )
      | ( ( ~ ( in @ SV274 @ SV174 ) )
        = $true )
      | ( ( relation @ SV174 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1331]) ).

thf(1411,plain,
    ! [SV221: $i,SV285: $i,SV87: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV87 @ SV285 ) @ ( cartesian_product2 @ SV221 @ SV285 ) )
        = $true )
      | ( ( subset @ SV87 @ SV221 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1332]) ).

thf(1412,plain,
    ! [SV222: $i,SV87: $i,SV286: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV286 @ SV87 ) @ ( cartesian_product2 @ SV286 @ SV222 ) )
        = $true )
      | ( ( subset @ SV87 @ SV222 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1333]) ).

thf(1413,plain,
    ! [SV177: $i,SV225: $i] :
      ( ( ( ~ ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV177 ) )
        = $false )
      | ( ( subset @ SV177 @ SV225 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1336]) ).

thf(1414,plain,
    ! [SV177: $i,SV225: $i] :
      ( ( ( ~ ~ ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV225 ) )
        = $false )
      | ( ( subset @ SV177 @ SV225 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1336]) ).

thf(1415,plain,
    ! [SV226: $i,SV178: $i,SV287: $i] :
      ( ( ( ~ ( in @ SV287 @ SV178 )
          | ( in @ SV287 @ SV226 ) )
        = $true )
      | ( ( subset @ SV178 @ SV226 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1337]) ).

thf(1416,plain,
    ! [SV227: $i,SV179: $i] :
      ( ( ( SV179 = empty_set )
        = $true )
      | ( ( SV179
          = ( singleton @ SV227 ) )
        = $true )
      | ( ( subset @ SV179 @ ( singleton @ SV227 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1338]) ).

thf(1417,plain,
    ! [SV275: $i] :
      ( ( ( ( SV275 != empty_set ) )
        = $true )
      | ( ( ! [SY563: $i] : ( subset @ SV275 @ ( singleton @ SY563 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1339]) ).

thf(1418,plain,
    ! [SV288: $i,SV276: $i] :
      ( ( ( SV276
         != ( singleton @ SV288 ) )
        | ( subset @ SV276 @ ( singleton @ SV288 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1340]) ).

thf(1419,plain,
    ! [SV228: $i,SV248: $i,SV88: $i] :
      ( ( ( ~ ( in @ SV88 @ SV248 ) )
        = $true )
      | ( ( ~ ( in @ SV228 @ SV248 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV88 @ SV228 ) @ SV248 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1341]) ).

thf(1420,plain,
    ! [SV289: $i,SV88: $i] :
      ( ( ! [SY568: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV88 @ SV289 ) @ SY568 )
            | ( in @ SV88 @ SY568 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1342]) ).

thf(1421,plain,
    ! [SV290: $i,SV88: $i] :
      ( ( ! [SY569: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV88 @ SV290 ) @ SY569 )
            | ( in @ SV290 @ SY569 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1343]) ).

thf(1422,plain,
    ! [SV231: $i,SV182: $i] :
      ( ( ( SV182 = empty_set )
        = $true )
      | ( ( SV182
          = ( singleton @ SV231 ) )
        = $true )
      | ( ( subset @ SV182 @ ( singleton @ SV231 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1346]) ).

thf(1423,plain,
    ! [SV277: $i] :
      ( ( ( ( SV277 != empty_set ) )
        = $true )
      | ( ( ! [SY565: $i] : ( subset @ SV277 @ ( singleton @ SY565 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1347]) ).

thf(1424,plain,
    ! [SV291: $i,SV278: $i] :
      ( ( ( SV278
         != ( singleton @ SV291 ) )
        | ( subset @ SV278 @ ( singleton @ SV291 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1348]) ).

thf(1425,plain,
    ! [SV185: $i,SV234: $i] :
      ( ( ( in @ SV234 @ SV185 )
        = $false )
      | ( ( ( set_difference @ SV185 @ ( singleton @ SV234 ) )
          = SV185 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1351]) ).

thf(1426,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( ~ ( ( ( sK27_C @ SV236 @ SV187 )
               != SV187 )
              | ~ ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) ) )
        = $false )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1352]) ).

thf(1427,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( ~ ( ( ( sK27_C @ SV236 @ SV187 )
                = SV187 )
              | ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) ) )
        = $false )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1352]) ).

thf(1428,plain,
    ! [SV237: $i,SV188: $i] :
      ( ( ( ~ ! [SY519: $i] :
                ( ( SY519 != SV188 )
                | ( in @ SY519 @ SV237 ) )
          | ~ ! [SY520: $i] :
                ( ~ ( in @ SY520 @ SV237 )
                | ( SY520 = SV188 ) ) )
        = $false )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1353]) ).

thf(1429,plain,
    ! [SV238: $i,SV89: $i,SV249: $i] :
      ( ( ( relation @ SV249 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV89 @ SV238 ) @ SV249 )
          | ( in @ SV89 @ ( relation_dom @ SV249 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1354]) ).

thf(1430,plain,
    ! [SV239: $i,SV89: $i,SV250: $i] :
      ( ( ( relation @ SV250 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV89 @ SV239 ) @ SV250 )
          | ( in @ SV239 @ ( relation_rng @ SV250 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1355]) ).

thf(1431,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                    | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) )
                | ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                    | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) ) )
        = $false )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1360]) ).

thf(1432,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
              | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 )
              | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) )
        = $false )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1360]) ).

thf(1433,plain,
    ! [SV194: $i,SV73: $i,SV241: $i] :
      ( ( ( ~ ! [SY523: $i] :
                ( ~ ( in @ SY523 @ SV241 )
                | ( in @ SY523 @ SV73 )
                | ( in @ SY523 @ SV194 ) )
          | ~ ~ ( ~ ! [SY524: $i] :
                      ( ~ ( in @ SY524 @ SV73 )
                      | ( in @ SY524 @ SV241 ) )
                | ~ ! [SY525: $i] :
                      ( ~ ( in @ SY525 @ SV194 )
                      | ( in @ SY525 @ SV241 ) ) ) )
        = $false )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1361]) ).

thf(1434,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                    | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                     != SV74 ) )
                | ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                    | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                     != SV195 ) ) ) )
        = $false )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1362]) ).

thf(1435,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
              | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                = SV74 )
              | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                = SV195 ) ) )
        = $false )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1362]) ).

thf(1436,plain,
    ! [SV196: $i,SV74: $i,SV243: $i] :
      ( ( ( ~ ! [SY526: $i] :
                ( ~ ( in @ SY526 @ SV243 )
                | ( SY526 = SV74 )
                | ( SY526 = SV196 ) )
          | ~ ~ ( ~ ! [SY527: $i] :
                      ( ( SY527 != SV74 )
                      | ( in @ SY527 @ SV243 ) )
                | ~ ! [SY528: $i] :
                      ( ( SY528 != SV196 )
                      | ( in @ SY528 @ SV243 ) ) ) )
        = $false )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1363]) ).

thf(1437,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
              | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
              | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) ) )
        = $false )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1364]) ).

thf(1438,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
                    | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
                | ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
                    | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) ) ) )
        = $false )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1364]) ).

thf(1439,plain,
    ! [SV245: $i,SV198: $i,SV75: $i] :
      ( ( ( ~ ! [SY529: $i] :
                ( ~ ( in @ SY529 @ SV75 )
                | ~ ( in @ SY529 @ SV198 )
                | ( in @ SY529 @ SV245 ) )
          | ~ ~ ( ~ ! [SY530: $i] :
                      ( ~ ( in @ SY530 @ SV245 )
                      | ( in @ SY530 @ SV75 ) )
                | ~ ! [SY531: $i] :
                      ( ~ ( in @ SY531 @ SV245 )
                      | ( in @ SY531 @ SV198 ) ) ) )
        = $false )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1365]) ).

thf(1440,plain,
    ! [SV76: $i,SV251: $i] :
      ( ( ( ~ ( ! [SY535: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ SY535 ) @ SV76 )
              | ~ ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ ( sK21_SY278 @ SV251 @ SV76 ) ) @ SV76 )
              | ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) ) )
        = $false )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1366]) ).

thf(1441,plain,
    ! [SV76: $i,SV252: $i] :
      ( ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY536: $i] :
                    ( ! [SY377: $i] :
                        ~ ( in @ ( ordered_pair @ SY536 @ SY377 ) @ SV76 )
                    | ( in @ SY536 @ SV252 ) )
              | ~ ! [SY538: $i] :
                    ( ~ ( in @ SY538 @ SV252 )
                    | ( in @ ( ordered_pair @ SY538 @ ( sK19_D @ SY538 @ SV252 @ SV76 ) ) @ SV76 ) ) ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1367]) ).

thf(1442,plain,
    ! [SV253: $i,SV292: $i] :
      ( ( ( ~ ( element @ SV292 @ SV253 )
          | ( in @ SV292 @ SV253 ) )
        = $true )
      | ( ( empty @ SV253 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1368]) ).

thf(1443,plain,
    ! [SV254: $i,SV293: $i] :
      ( ( ( ~ ( in @ SV293 @ SV254 )
          | ( element @ SV293 @ SV254 ) )
        = $true )
      | ( ( empty @ SV254 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1369]) ).

thf(1444,plain,
    ! [SV255: $i] :
      ( ( ( empty @ SV255 )
        = $false )
      | ( ( ! [SY541: $i] :
              ( ~ ( element @ SY541 @ SV255 )
              | ( empty @ SY541 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1370]) ).

thf(1445,plain,
    ! [SV256: $i] :
      ( ( ( empty @ SV256 )
        = $false )
      | ( ( ! [SY542: $i] :
              ( ~ ( empty @ SY542 )
              | ( element @ SY542 @ SV256 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1371]) ).

thf(1446,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( ~ ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
          | ~ ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) )
        = $true )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1373]) ).

thf(1447,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
          | ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) )
        = $true )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1374]) ).

thf(1448,plain,
    ! [SV154: $i,SV200: $i] :
      ( ( ( ~ ! [SY502: $i] :
                ( ~ ( in @ SY502 @ SV200 )
                | ( subset @ SY502 @ SV154 ) ) )
        = $false )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1375]) ).

thf(1449,plain,
    ! [SV200: $i,SV154: $i] :
      ( ( ( ~ ! [SY503: $i] :
                ( ~ ( subset @ SY503 @ SV154 )
                | ( in @ SY503 @ SV200 ) ) )
        = $false )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1375]) ).

thf(1450,plain,
    ! [SV258: $i,SV202: $i,SV156: $i] :
      ( ( ( disjoint @ SV156 @ SV202 )
        = $false )
      | ( ( in @ SV258 @ ( set_intersection2 @ SV156 @ SV202 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1376]) ).

thf(1451,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ! [SY505: $i] :
              ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SY505 )
              | ~ ( in @ SY505 @ SV157 ) )
          | ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1377]) ).

thf(1452,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ ( sK18_SY276 @ SV203 @ SV157 ) )
              | ~ ( in @ ( sK18_SY276 @ SV203 @ SV157 ) @ SV157 ) )
          | ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1378]) ).

thf(1453,plain,
    ! [SV204: $i,SV158: $i] :
      ( ( ( ~ ! [SY506: $i] :
                ( ! [SY452: $i] :
                    ( ~ ( in @ SY506 @ SY452 )
                    | ~ ( in @ SY452 @ SV158 ) )
                | ( in @ SY506 @ SV204 ) ) )
        = $false )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1379]) ).

thf(1454,plain,
    ! [SV158: $i,SV204: $i] :
      ( ( ( ~ ! [SY508: $i] :
                ( ~ ( in @ SY508 @ SV204 )
                | ~ ( ~ ( in @ SY508 @ ( sK16_D @ SY508 @ SV204 @ SV158 ) )
                    | ~ ( in @ ( sK16_D @ SY508 @ SV204 @ SV158 ) @ SV158 ) ) ) )
        = $false )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1379]) ).

thf(1455,plain,
    ! [SV161: $i,SV205: $i] :
      ( ( ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV161 )
        = $true )
      | ( ( disjoint @ SV161 @ SV205 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1380]) ).

thf(1456,plain,
    ! [SV161: $i,SV205: $i] :
      ( ( ( in @ ( sK34_C @ SV205 @ SV161 ) @ SV205 )
        = $true )
      | ( ( disjoint @ SV161 @ SV205 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1381]) ).

thf(1457,plain,
    ! [SV206: $i,SV162: $i,SV259: $i] :
      ( ( ( in @ SV259 @ SV162 )
        = $false )
      | ( ( ~ ( in @ SV259 @ SV206 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV162 @ SV206 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1382]) ).

thf(1458,plain,
    ! [SV78: $i,SV260: $i] :
      ( ( ( relation @ SV260 )
        = $false )
      | ( ( ~ ( subset @ SV78 @ SV260 )
          | ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SV260 ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1383]) ).

thf(1459,plain,
    ! [SV78: $i,SV261: $i] :
      ( ( ( relation @ SV261 )
        = $false )
      | ( ( ~ ( subset @ SV78 @ SV261 )
          | ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SV261 ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1384]) ).

thf(1460,plain,
    ! [SV79: $i,SV279: $i] :
      ( ( ( ~ ( in @ SV279 @ ( sK35_B @ SV79 ) ) )
        = $true )
      | ( ( in @ ( powerset @ SV279 ) @ ( sK35_B @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1386]) ).

thf(1461,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY383: $i,SY384: $i] :
              ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
              | ~ ( subset @ SY384 @ SY383 )
              | ( in @ SY384 @ ( sK35_B @ SV79 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1387]) ).

thf(1462,plain,
    ! [SV79: $i] :
      ( ( ~ ( in @ SV79 @ ( sK35_B @ SV79 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1387]) ).

thf(1463,plain,
    ! [SV167: $i,SV212: $i] :
      ( ( ( subset @ SV212 @ SV167 )
        = $false )
      | ( ( subset @ SV167 @ SV212 )
        = $false )
      | ( ( SV167 = SV212 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1388]) ).

thf(1464,plain,
    ! [SV280: $i,SV262: $i] :
      ( ( ( ( SV262 != SV280 ) )
        = $true )
      | ( ( subset @ SV262 @ SV280 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1389]) ).

thf(1465,plain,
    ! [SV281: $i,SV263: $i] :
      ( ( ( ( SV263 != SV281 ) )
        = $true )
      | ( ( subset @ SV281 @ SV263 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1390]) ).

thf(1466,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
              | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
              | ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) ) )
        = $false )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1391]) ).

thf(1467,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
                    | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
                | ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
                    | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) ) ) )
        = $false )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1391]) ).

thf(1468,plain,
    ! [SV247: $i,SV216: $i,SV81: $i] :
      ( ( ( ~ ! [SY532: $i] :
                ( ~ ( in @ SY532 @ SV81 )
                | ( in @ SY532 @ SV216 )
                | ( in @ SY532 @ SV247 ) )
          | ~ ~ ( ~ ! [SY533: $i] :
                      ( ~ ( in @ SY533 @ SV247 )
                      | ( in @ SY533 @ SV81 ) )
                | ~ ! [SY534: $i] :
                      ( ~ ( in @ SY534 @ SV247 )
                      | ~ ( in @ SY534 @ SV216 ) ) ) )
        = $false )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1392]) ).

thf(1469,plain,
    ! [SV82: $i,SV264: $i] :
      ( ( ( ~ ( ! [SY545: $i] :
                  ~ ( in @ ( ordered_pair @ SY545 @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
              | ~ ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV264 @ SV82 ) @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
              | ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) ) )
        = $false )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1393]) ).

thf(1470,plain,
    ! [SV82: $i,SV265: $i] :
      ( ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY546: $i] :
                    ( ! [SY397: $i] :
                        ~ ( in @ ( ordered_pair @ SY397 @ SY546 ) @ SV82 )
                    | ( in @ SY546 @ SV265 ) )
              | ~ ! [SY548: $i] :
                    ( ~ ( in @ SY548 @ SV265 )
                    | ( in @ ( ordered_pair @ ( sK12_D @ SY548 @ SV265 @ SV82 ) @ SY548 ) @ SV82 ) ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1394]) ).

thf(1471,plain,
    ! [SV83: $i,SV134: $i] :
      ( ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV134 )
        = $false )
      | ( ( in @ ( sK3_C @ SV134 @ SV83 ) @ SV83 )
        = $false )
      | ( ( SV83 = SV134 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1395]) ).

thf(1472,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 )
                      | ~ ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) ) )
                  | ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
              | ~ ( ! [SY570: $i] :
                      ( ~ ( in @ SY570 @ SV266 )
                      | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SY570 ) )
                  | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) ) )
          | ( SV294
            = ( set_meet @ SV266 ) ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1396]) ).

thf(1473,plain,
    ! [SV267: $i,SV295: $i] :
      ( ( ( ( SV295
           != ( set_meet @ SV267 ) )
          | ~ ( ~ ! [SY571: $i] :
                    ( ~ ( ~ ( in @ ( sK38_D @ SY571 @ SV295 @ SV267 ) @ SV267 )
                        | ~ ~ ( in @ SY571 @ ( sK38_D @ SY571 @ SV295 @ SV267 ) ) )
                    | ( in @ SY571 @ SV295 ) )
              | ~ ! [SY572: $i] :
                    ( ~ ( in @ SY572 @ SV295 )
                    | ! [SY554: $i] :
                        ( ~ ( in @ SY554 @ SV267 )
                        | ( in @ SY572 @ SY554 ) ) ) ) )
        = $true )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1397]) ).

thf(1474,plain,
    ! [SV268: $i] :
      ( ( ( SV268 = empty_set )
        = $false )
      | ( ( ! [SY555: $i] :
              ( ( SY555
               != ( set_meet @ SV268 ) )
              | ( SY555 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1398]) ).

thf(1475,plain,
    ! [SV269: $i] :
      ( ( ( SV269 = empty_set )
        = $false )
      | ( ( ! [SY556: $i] :
              ( ( SY556 != empty_set )
              | ( SY556
                = ( set_meet @ SV269 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1399]) ).

thf(1476,plain,
    ! [SV282: $i,SV270: $i] :
      ( ( ( ~ ( proper_subset @ SV270 @ SV282 ) )
        = $true )
      | ( ( ( SV270 != SV282 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1401]) ).

thf(1477,plain,
    ! [SV283: $i,SV271: $i] :
      ( ( ( ~ ( proper_subset @ SV271 @ SV283 ) )
        = $true )
      | ( ( subset @ SV271 @ SV283 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1402]) ).

thf(1478,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( relation @ SV272 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
                  | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
                  | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) ) )
          | ( SV272
            = ( relation_inverse @ SV84 ) ) )
        = $true )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1403]) ).

thf(1479,plain,
    ! [SV84: $i,SV273: $i] :
      ( ( ( relation @ SV273 )
        = $false )
      | ( ( ( SV273
           != ( relation_inverse @ SV84 ) )
          | ~ ( ~ ! [SY559: $i,SY560: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY559 @ SY560 ) @ SV273 )
                    | ( in @ ( ordered_pair @ SY560 @ SY559 ) @ SV84 ) )
              | ~ ! [SY561: $i,SY562: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY562 @ SY561 ) @ SV84 )
                    | ( in @ ( ordered_pair @ SY561 @ SY562 ) @ SV273 ) ) ) )
        = $true )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1404]) ).

thf(1480,plain,
    ! [SV85: $i,SV284: $i] :
      ( ( ( ~ ( ~ ! [SY567: $i] :
                    ( ~ ( subset @ SY567 @ SV284 )
                    | ( in @ SY567 @ ( sK2_SY267 @ SV284 @ SV85 ) ) )
              | ~ ( in @ ( sK2_SY267 @ SV284 @ SV85 ) @ ( sK1_B @ SV85 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1406]) ).

thf(1481,plain,
    ! [SV85: $i] :
      ( ( ~ ! [SY409: $i,SY410: $i] :
              ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
              | ~ ( subset @ SY410 @ SY409 )
              | ( in @ SY410 @ ( sK1_B @ SV85 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1407]) ).

thf(1482,plain,
    ! [SV85: $i] :
      ( ( ~ ( in @ SV85 @ ( sK1_B @ SV85 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1407]) ).

thf(1483,plain,
    ! [SV296: $i,SV173: $i] :
      ( ( ( ! [SY574: $i] :
              ( ( sK30_B @ SV173 )
             != ( ordered_pair @ SV296 @ SY574 ) ) )
        = $true )
      | ( ( relation @ SV173 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1408]) ).

thf(1484,plain,
    ! [SV174: $i,SV274: $i] :
      ( ( ( in @ SV274 @ SV174 )
        = $false )
      | ( ( SV274
          = ( ordered_pair @ ( sK28_C @ SV274 @ SV174 ) @ ( sK29_SY279 @ SV274 @ SV174 ) ) )
        = $true )
      | ( ( relation @ SV174 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1410]) ).

thf(1485,plain,
    ! [SV177: $i,SV225: $i] :
      ( ( ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV177 )
        = $true )
      | ( ( subset @ SV177 @ SV225 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1413]) ).

thf(1486,plain,
    ! [SV177: $i,SV225: $i] :
      ( ( ( ~ ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV225 ) )
        = $true )
      | ( ( subset @ SV177 @ SV225 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1414]) ).

thf(1487,plain,
    ! [SV226: $i,SV178: $i,SV287: $i] :
      ( ( ( ~ ( in @ SV287 @ SV178 ) )
        = $true )
      | ( ( in @ SV287 @ SV226 )
        = $true )
      | ( ( subset @ SV178 @ SV226 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1415]) ).

thf(1488,plain,
    ! [SV275: $i] :
      ( ( ( SV275 = empty_set )
        = $false )
      | ( ( ! [SY563: $i] : ( subset @ SV275 @ ( singleton @ SY563 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1417]) ).

thf(1489,plain,
    ! [SV288: $i,SV276: $i] :
      ( ( ( ( SV276
           != ( singleton @ SV288 ) ) )
        = $true )
      | ( ( subset @ SV276 @ ( singleton @ SV288 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1418]) ).

thf(1490,plain,
    ! [SV228: $i,SV248: $i,SV88: $i] :
      ( ( ( in @ SV88 @ SV248 )
        = $false )
      | ( ( ~ ( in @ SV228 @ SV248 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV88 @ SV228 ) @ SV248 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1419]) ).

thf(1491,plain,
    ! [SV297: $i,SV289: $i,SV88: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV88 @ SV289 ) @ SV297 )
        | ( in @ SV88 @ SV297 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1420]) ).

thf(1492,plain,
    ! [SV298: $i,SV290: $i,SV88: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV88 @ SV290 ) @ SV298 )
        | ( in @ SV290 @ SV298 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1421]) ).

thf(1493,plain,
    ! [SV277: $i] :
      ( ( ( SV277 = empty_set )
        = $false )
      | ( ( ! [SY565: $i] : ( subset @ SV277 @ ( singleton @ SY565 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1423]) ).

thf(1494,plain,
    ! [SV291: $i,SV278: $i] :
      ( ( ( ( SV278
           != ( singleton @ SV291 ) ) )
        = $true )
      | ( ( subset @ SV278 @ ( singleton @ SV291 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1424]) ).

thf(1495,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( ( ( sK27_C @ SV236 @ SV187 )
           != SV187 )
          | ~ ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) )
        = $true )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1426]) ).

thf(1496,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( ( ( sK27_C @ SV236 @ SV187 )
            = SV187 )
          | ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) )
        = $true )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1427]) ).

thf(1497,plain,
    ! [SV237: $i,SV188: $i] :
      ( ( ( ~ ! [SY519: $i] :
                ( ( SY519 != SV188 )
                | ( in @ SY519 @ SV237 ) ) )
        = $false )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1428]) ).

thf(1498,plain,
    ! [SV188: $i,SV237: $i] :
      ( ( ( ~ ! [SY520: $i] :
                ( ~ ( in @ SY520 @ SV237 )
                | ( SY520 = SV188 ) ) )
        = $false )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1428]) ).

thf(1499,plain,
    ! [SV249: $i,SV238: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV89 @ SV238 ) @ SV249 ) )
        = $true )
      | ( ( in @ SV89 @ ( relation_dom @ SV249 ) )
        = $true )
      | ( ( relation @ SV249 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1429]) ).

thf(1500,plain,
    ! [SV250: $i,SV239: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV89 @ SV239 ) @ SV250 ) )
        = $true )
      | ( ( in @ SV239 @ ( relation_rng @ SV250 ) )
        = $true )
      | ( ( relation @ SV250 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1430]) ).

thf(1501,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                  | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) )
              | ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
                  | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1431]) ).

thf(1502,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
          | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 )
          | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1432]) ).

thf(1503,plain,
    ! [SV194: $i,SV73: $i,SV241: $i] :
      ( ( ( ~ ! [SY523: $i] :
                ( ~ ( in @ SY523 @ SV241 )
                | ( in @ SY523 @ SV73 )
                | ( in @ SY523 @ SV194 ) ) )
        = $false )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1433]) ).

thf(1504,plain,
    ! [SV194: $i,SV241: $i,SV73: $i] :
      ( ( ( ~ ~ ( ~ ! [SY524: $i] :
                      ( ~ ( in @ SY524 @ SV73 )
                      | ( in @ SY524 @ SV241 ) )
                | ~ ! [SY525: $i] :
                      ( ~ ( in @ SY525 @ SV194 )
                      | ( in @ SY525 @ SV241 ) ) ) )
        = $false )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1433]) ).

thf(1505,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                  | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                   != SV74 ) )
              | ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
                  | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
                   != SV195 ) ) ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1434]) ).

thf(1506,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
          | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
            = SV74 )
          | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
            = SV195 ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1435]) ).

thf(1507,plain,
    ! [SV196: $i,SV74: $i,SV243: $i] :
      ( ( ( ~ ! [SY526: $i] :
                ( ~ ( in @ SY526 @ SV243 )
                | ( SY526 = SV74 )
                | ( SY526 = SV196 ) ) )
        = $false )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1436]) ).

thf(1508,plain,
    ! [SV196: $i,SV243: $i,SV74: $i] :
      ( ( ( ~ ~ ( ~ ! [SY527: $i] :
                      ( ( SY527 != SV74 )
                      | ( in @ SY527 @ SV243 ) )
                | ~ ! [SY528: $i] :
                      ( ( SY528 != SV196 )
                      | ( in @ SY528 @ SV243 ) ) ) )
        = $false )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1436]) ).

thf(1509,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
          | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
          | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1437]) ).

thf(1510,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
                  | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
              | ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
                  | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) ) ) )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1438]) ).

thf(1511,plain,
    ! [SV245: $i,SV198: $i,SV75: $i] :
      ( ( ( ~ ! [SY529: $i] :
                ( ~ ( in @ SY529 @ SV75 )
                | ~ ( in @ SY529 @ SV198 )
                | ( in @ SY529 @ SV245 ) ) )
        = $false )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1439]) ).

thf(1512,plain,
    ! [SV198: $i,SV75: $i,SV245: $i] :
      ( ( ( ~ ~ ( ~ ! [SY530: $i] :
                      ( ~ ( in @ SY530 @ SV245 )
                      | ( in @ SY530 @ SV75 ) )
                | ~ ! [SY531: $i] :
                      ( ~ ( in @ SY531 @ SV245 )
                      | ( in @ SY531 @ SV198 ) ) ) )
        = $false )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1439]) ).

thf(1513,plain,
    ! [SV76: $i,SV251: $i] :
      ( ( ( ~ ( ! [SY535: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ SY535 ) @ SV76 )
              | ~ ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) ) )
        = $false )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1440]) ).

thf(1514,plain,
    ! [SV76: $i,SV251: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ ( sK21_SY278 @ SV251 @ SV76 ) ) @ SV76 )
              | ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) ) )
        = $false )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1440]) ).

thf(1515,plain,
    ! [SV252: $i,SV76: $i] :
      ( ( ( ~ ! [SY536: $i] :
                ( ! [SY377: $i] :
                    ~ ( in @ ( ordered_pair @ SY536 @ SY377 ) @ SV76 )
                | ( in @ SY536 @ SV252 ) )
          | ~ ! [SY538: $i] :
                ( ~ ( in @ SY538 @ SV252 )
                | ( in @ ( ordered_pair @ SY538 @ ( sK19_D @ SY538 @ SV252 @ SV76 ) ) @ SV76 ) ) )
        = $false )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1441]) ).

thf(1516,plain,
    ! [SV253: $i,SV292: $i] :
      ( ( ( ~ ( element @ SV292 @ SV253 ) )
        = $true )
      | ( ( in @ SV292 @ SV253 )
        = $true )
      | ( ( empty @ SV253 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1442]) ).

thf(1517,plain,
    ! [SV254: $i,SV293: $i] :
      ( ( ( ~ ( in @ SV293 @ SV254 ) )
        = $true )
      | ( ( element @ SV293 @ SV254 )
        = $true )
      | ( ( empty @ SV254 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1443]) ).

thf(1518,plain,
    ! [SV255: $i,SV299: $i] :
      ( ( ( ~ ( element @ SV299 @ SV255 )
          | ( empty @ SV299 ) )
        = $true )
      | ( ( empty @ SV255 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1444]) ).

thf(1519,plain,
    ! [SV256: $i,SV300: $i] :
      ( ( ( ~ ( empty @ SV300 )
          | ( element @ SV300 @ SV256 ) )
        = $true )
      | ( ( empty @ SV256 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1445]) ).

thf(1520,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( ~ ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) )
        = $true )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1446]) ).

thf(1521,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
        = $true )
      | ( ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 )
        = $true )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1447]) ).

thf(1522,plain,
    ! [SV154: $i,SV200: $i] :
      ( ( ( ! [SY502: $i] :
              ( ~ ( in @ SY502 @ SV200 )
              | ( subset @ SY502 @ SV154 ) ) )
        = $true )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1448]) ).

thf(1523,plain,
    ! [SV200: $i,SV154: $i] :
      ( ( ( ! [SY503: $i] :
              ( ~ ( subset @ SY503 @ SV154 )
              | ( in @ SY503 @ SV200 ) ) )
        = $true )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1449]) ).

thf(1524,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ! [SY505: $i] :
              ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SY505 )
              | ~ ( in @ SY505 @ SV157 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1451]) ).

thf(1525,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ ( sK18_SY276 @ SV203 @ SV157 ) )
              | ~ ( in @ ( sK18_SY276 @ SV203 @ SV157 ) @ SV157 ) ) )
        = $true )
      | ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1452]) ).

thf(1526,plain,
    ! [SV204: $i,SV158: $i] :
      ( ( ( ! [SY506: $i] :
              ( ! [SY452: $i] :
                  ( ~ ( in @ SY506 @ SY452 )
                  | ~ ( in @ SY452 @ SV158 ) )
              | ( in @ SY506 @ SV204 ) ) )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1453]) ).

thf(1527,plain,
    ! [SV158: $i,SV204: $i] :
      ( ( ( ! [SY508: $i] :
              ( ~ ( in @ SY508 @ SV204 )
              | ~ ( ~ ( in @ SY508 @ ( sK16_D @ SY508 @ SV204 @ SV158 ) )
                  | ~ ( in @ ( sK16_D @ SY508 @ SV204 @ SV158 ) @ SV158 ) ) ) )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1454]) ).

thf(1528,plain,
    ! [SV162: $i,SV206: $i,SV259: $i] :
      ( ( ( in @ SV259 @ SV206 )
        = $false )
      | ( ( in @ SV259 @ SV162 )
        = $false )
      | ( ( ~ ( disjoint @ SV162 @ SV206 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1457]) ).

thf(1529,plain,
    ! [SV260: $i,SV78: $i] :
      ( ( ( ~ ( subset @ SV78 @ SV260 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SV260 ) )
        = $true )
      | ( ( relation @ SV260 )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1458]) ).

thf(1530,plain,
    ! [SV261: $i,SV78: $i] :
      ( ( ( ~ ( subset @ SV78 @ SV261 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1459]) ).

thf(1531,plain,
    ! [SV79: $i,SV279: $i] :
      ( ( ( in @ SV279 @ ( sK35_B @ SV79 ) )
        = $false )
      | ( ( in @ ( powerset @ SV279 ) @ ( sK35_B @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1460]) ).

thf(1532,plain,
    ! [SV79: $i] :
      ( ( ! [SY383: $i,SY384: $i] :
            ( ~ ( in @ SY383 @ ( sK35_B @ SV79 ) )
            | ~ ( subset @ SY384 @ SY383 )
            | ( in @ SY384 @ ( sK35_B @ SV79 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1461]) ).

thf(1533,plain,
    ! [SV79: $i] :
      ( ( in @ SV79 @ ( sK35_B @ SV79 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1462]) ).

thf(1534,plain,
    ! [SV280: $i,SV262: $i] :
      ( ( ( SV262 = SV280 )
        = $false )
      | ( ( subset @ SV262 @ SV280 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1464]) ).

thf(1535,plain,
    ! [SV281: $i,SV263: $i] :
      ( ( ( SV263 = SV281 )
        = $false )
      | ( ( subset @ SV281 @ SV263 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1465]) ).

thf(1536,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
          | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
          | ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1466]) ).

thf(1537,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
                  | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
              | ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
                  | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) ) ) )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1467]) ).

thf(1538,plain,
    ! [SV247: $i,SV216: $i,SV81: $i] :
      ( ( ( ~ ! [SY532: $i] :
                ( ~ ( in @ SY532 @ SV81 )
                | ( in @ SY532 @ SV216 )
                | ( in @ SY532 @ SV247 ) ) )
        = $false )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1468]) ).

thf(1539,plain,
    ! [SV216: $i,SV81: $i,SV247: $i] :
      ( ( ( ~ ~ ( ~ ! [SY533: $i] :
                      ( ~ ( in @ SY533 @ SV247 )
                      | ( in @ SY533 @ SV81 ) )
                | ~ ! [SY534: $i] :
                      ( ~ ( in @ SY534 @ SV247 )
                      | ~ ( in @ SY534 @ SV216 ) ) ) )
        = $false )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1468]) ).

thf(1540,plain,
    ! [SV82: $i,SV264: $i] :
      ( ( ( ~ ( ! [SY545: $i] :
                  ~ ( in @ ( ordered_pair @ SY545 @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
              | ~ ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) ) )
        = $false )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1469]) ).

thf(1541,plain,
    ! [SV82: $i,SV264: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV264 @ SV82 ) @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
              | ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) ) )
        = $false )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1469]) ).

thf(1542,plain,
    ! [SV265: $i,SV82: $i] :
      ( ( ( ~ ! [SY546: $i] :
                ( ! [SY397: $i] :
                    ~ ( in @ ( ordered_pair @ SY397 @ SY546 ) @ SV82 )
                | ( in @ SY546 @ SV265 ) )
          | ~ ! [SY548: $i] :
                ( ~ ( in @ SY548 @ SV265 )
                | ( in @ ( ordered_pair @ ( sK12_D @ SY548 @ SV265 @ SV82 ) @ SY548 ) @ SV82 ) ) )
        = $false )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1470]) ).

thf(1543,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 )
                      | ~ ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) ) )
                  | ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
              | ~ ( ! [SY570: $i] :
                      ( ~ ( in @ SY570 @ SV266 )
                      | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SY570 ) )
                  | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) ) ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1472]) ).

thf(1544,plain,
    ! [SV267: $i,SV295: $i] :
      ( ( ( ( SV295
           != ( set_meet @ SV267 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY571: $i] :
                    ( ~ ( ~ ( in @ ( sK38_D @ SY571 @ SV295 @ SV267 ) @ SV267 )
                        | ~ ~ ( in @ SY571 @ ( sK38_D @ SY571 @ SV295 @ SV267 ) ) )
                    | ( in @ SY571 @ SV295 ) )
              | ~ ! [SY572: $i] :
                    ( ~ ( in @ SY572 @ SV295 )
                    | ! [SY554: $i] :
                        ( ~ ( in @ SY554 @ SV267 )
                        | ( in @ SY572 @ SY554 ) ) ) ) )
        = $true )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1473]) ).

thf(1545,plain,
    ! [SV268: $i,SV301: $i] :
      ( ( ( ( SV301
           != ( set_meet @ SV268 ) )
          | ( SV301 = empty_set ) )
        = $true )
      | ( ( SV268 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1474]) ).

thf(1546,plain,
    ! [SV269: $i,SV302: $i] :
      ( ( ( ( SV302 != empty_set )
          | ( SV302
            = ( set_meet @ SV269 ) ) )
        = $true )
      | ( ( SV269 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1475]) ).

thf(1547,plain,
    ! [SV282: $i,SV270: $i] :
      ( ( ( proper_subset @ SV270 @ SV282 )
        = $false )
      | ( ( ( SV270 != SV282 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1476]) ).

thf(1548,plain,
    ! [SV283: $i,SV271: $i] :
      ( ( ( proper_subset @ SV271 @ SV283 )
        = $false )
      | ( ( subset @ SV271 @ SV283 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1477]) ).

thf(1549,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
                  | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
                  | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) ) ) )
        = $true )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1478]) ).

thf(1550,plain,
    ! [SV84: $i,SV273: $i] :
      ( ( ( ( SV273
           != ( relation_inverse @ SV84 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY559: $i,SY560: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY559 @ SY560 ) @ SV273 )
                    | ( in @ ( ordered_pair @ SY560 @ SY559 ) @ SV84 ) )
              | ~ ! [SY561: $i,SY562: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY562 @ SY561 ) @ SV84 )
                    | ( in @ ( ordered_pair @ SY561 @ SY562 ) @ SV273 ) ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1479]) ).

thf(1551,plain,
    ! [SV85: $i,SV284: $i] :
      ( ( ( ~ ! [SY567: $i] :
                ( ~ ( subset @ SY567 @ SV284 )
                | ( in @ SY567 @ ( sK2_SY267 @ SV284 @ SV85 ) ) )
          | ~ ( in @ ( sK2_SY267 @ SV284 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
        = $false )
      | ( ( ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1480]) ).

thf(1552,plain,
    ! [SV85: $i] :
      ( ( ! [SY409: $i,SY410: $i] :
            ( ~ ( in @ SY409 @ ( sK1_B @ SV85 ) )
            | ~ ( subset @ SY410 @ SY409 )
            | ( in @ SY410 @ ( sK1_B @ SV85 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1481]) ).

thf(1553,plain,
    ! [SV85: $i] :
      ( ( in @ SV85 @ ( sK1_B @ SV85 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1482]) ).

thf(1554,plain,
    ! [SV303: $i,SV296: $i,SV173: $i] :
      ( ( ( ( ( sK30_B @ SV173 )
           != ( ordered_pair @ SV296 @ SV303 ) ) )
        = $true )
      | ( ( relation @ SV173 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1483]) ).

thf(1555,plain,
    ! [SV177: $i,SV225: $i] :
      ( ( ( in @ ( sK23_C @ SV225 @ SV177 ) @ SV225 )
        = $false )
      | ( ( subset @ SV177 @ SV225 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1486]) ).

thf(1556,plain,
    ! [SV226: $i,SV178: $i,SV287: $i] :
      ( ( ( in @ SV287 @ SV178 )
        = $false )
      | ( ( in @ SV287 @ SV226 )
        = $true )
      | ( ( subset @ SV178 @ SV226 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1487]) ).

thf(1557,plain,
    ! [SV304: $i,SV275: $i] :
      ( ( ( subset @ SV275 @ ( singleton @ SV304 ) )
        = $true )
      | ( ( SV275 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1488]) ).

thf(1558,plain,
    ! [SV288: $i,SV276: $i] :
      ( ( ( SV276
          = ( singleton @ SV288 ) )
        = $false )
      | ( ( subset @ SV276 @ ( singleton @ SV288 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1489]) ).

thf(1559,plain,
    ! [SV88: $i,SV248: $i,SV228: $i] :
      ( ( ( in @ SV228 @ SV248 )
        = $false )
      | ( ( in @ SV88 @ SV248 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV88 @ SV228 ) @ SV248 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1490]) ).

thf(1560,plain,
    ! [SV297: $i,SV289: $i,SV88: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV88 @ SV289 ) @ SV297 ) )
        = $true )
      | ( ( in @ SV88 @ SV297 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1491]) ).

thf(1561,plain,
    ! [SV298: $i,SV290: $i,SV88: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV88 @ SV290 ) @ SV298 ) )
        = $true )
      | ( ( in @ SV290 @ SV298 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1492]) ).

thf(1562,plain,
    ! [SV305: $i,SV277: $i] :
      ( ( ( subset @ SV277 @ ( singleton @ SV305 ) )
        = $true )
      | ( ( SV277 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1493]) ).

thf(1563,plain,
    ! [SV291: $i,SV278: $i] :
      ( ( ( SV278
          = ( singleton @ SV291 ) )
        = $false )
      | ( ( subset @ SV278 @ ( singleton @ SV291 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1494]) ).

thf(1564,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( ( ( sK27_C @ SV236 @ SV187 )
           != SV187 ) )
        = $true )
      | ( ( ~ ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) )
        = $true )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1495]) ).

thf(1565,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( ( sK27_C @ SV236 @ SV187 )
          = SV187 )
        = $true )
      | ( ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 )
        = $true )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1496]) ).

thf(1566,plain,
    ! [SV237: $i,SV188: $i] :
      ( ( ( ! [SY519: $i] :
              ( ( SY519 != SV188 )
              | ( in @ SY519 @ SV237 ) ) )
        = $true )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1497]) ).

thf(1567,plain,
    ! [SV188: $i,SV237: $i] :
      ( ( ( ! [SY520: $i] :
              ( ~ ( in @ SY520 @ SV237 )
              | ( SY520 = SV188 ) ) )
        = $true )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1498]) ).

thf(1568,plain,
    ! [SV249: $i,SV238: $i,SV89: $i] :
      ( ( ( in @ ( ordered_pair @ SV89 @ SV238 ) @ SV249 )
        = $false )
      | ( ( in @ SV89 @ ( relation_dom @ SV249 ) )
        = $true )
      | ( ( relation @ SV249 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1499]) ).

thf(1569,plain,
    ! [SV250: $i,SV239: $i,SV89: $i] :
      ( ( ( in @ ( ordered_pair @ SV89 @ SV239 ) @ SV250 )
        = $false )
      | ( ( in @ SV239 @ ( relation_rng @ SV250 ) )
        = $true )
      | ( ( relation @ SV250 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1500]) ).

thf(1570,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
              | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) )
          | ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
              | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) )
        = $false )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1501]) ).

thf(1571,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
        = $true )
      | ( ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 )
          | ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1502]) ).

thf(1572,plain,
    ! [SV194: $i,SV73: $i,SV241: $i] :
      ( ( ( ! [SY523: $i] :
              ( ~ ( in @ SY523 @ SV241 )
              | ( in @ SY523 @ SV73 )
              | ( in @ SY523 @ SV194 ) ) )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1503]) ).

thf(1573,plain,
    ! [SV194: $i,SV241: $i,SV73: $i] :
      ( ( ( ~ ( ~ ! [SY524: $i] :
                    ( ~ ( in @ SY524 @ SV73 )
                    | ( in @ SY524 @ SV241 ) )
              | ~ ! [SY525: $i] :
                    ( ~ ( in @ SY525 @ SV194 )
                    | ( in @ SY525 @ SV241 ) ) ) )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1504]) ).

thf(1574,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
              | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
               != SV74 ) )
          | ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
              | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
               != SV195 ) ) )
        = $false )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1505]) ).

thf(1575,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
        = $true )
      | ( ( ( ( sK25_D @ SV242 @ SV195 @ SV74 )
            = SV74 )
          | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
            = SV195 ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1506]) ).

thf(1576,plain,
    ! [SV196: $i,SV74: $i,SV243: $i] :
      ( ( ( ! [SY526: $i] :
              ( ~ ( in @ SY526 @ SV243 )
              | ( SY526 = SV74 )
              | ( SY526 = SV196 ) ) )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1507]) ).

thf(1577,plain,
    ! [SV196: $i,SV243: $i,SV74: $i] :
      ( ( ( ~ ( ~ ! [SY527: $i] :
                    ( ( SY527 != SV74 )
                    | ( in @ SY527 @ SV243 ) )
              | ~ ! [SY528: $i] :
                    ( ( SY528 != SV196 )
                    | ( in @ SY528 @ SV243 ) ) ) )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1508]) ).

thf(1578,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
          | ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1509]) ).

thf(1579,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
              | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
          | ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
              | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) ) )
        = $false )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1510]) ).

thf(1580,plain,
    ! [SV245: $i,SV198: $i,SV75: $i] :
      ( ( ( ! [SY529: $i] :
              ( ~ ( in @ SY529 @ SV75 )
              | ~ ( in @ SY529 @ SV198 )
              | ( in @ SY529 @ SV245 ) ) )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1511]) ).

thf(1581,plain,
    ! [SV198: $i,SV75: $i,SV245: $i] :
      ( ( ( ~ ( ~ ! [SY530: $i] :
                    ( ~ ( in @ SY530 @ SV245 )
                    | ( in @ SY530 @ SV75 ) )
              | ~ ! [SY531: $i] :
                    ( ~ ( in @ SY531 @ SV245 )
                    | ( in @ SY531 @ SV198 ) ) ) )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1512]) ).

thf(1582,plain,
    ! [SV76: $i,SV251: $i] :
      ( ( ( ! [SY535: $i] :
              ~ ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ SY535 ) @ SV76 )
          | ~ ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) )
        = $true )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1513]) ).

thf(1583,plain,
    ! [SV76: $i,SV251: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ ( sK21_SY278 @ SV251 @ SV76 ) ) @ SV76 )
          | ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) )
        = $true )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1514]) ).

thf(1584,plain,
    ! [SV252: $i,SV76: $i] :
      ( ( ( ~ ! [SY536: $i] :
                ( ! [SY377: $i] :
                    ~ ( in @ ( ordered_pair @ SY536 @ SY377 ) @ SV76 )
                | ( in @ SY536 @ SV252 ) ) )
        = $false )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1515]) ).

thf(1585,plain,
    ! [SV76: $i,SV252: $i] :
      ( ( ( ~ ! [SY538: $i] :
                ( ~ ( in @ SY538 @ SV252 )
                | ( in @ ( ordered_pair @ SY538 @ ( sK19_D @ SY538 @ SV252 @ SV76 ) ) @ SV76 ) ) )
        = $false )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1515]) ).

thf(1586,plain,
    ! [SV253: $i,SV292: $i] :
      ( ( ( element @ SV292 @ SV253 )
        = $false )
      | ( ( in @ SV292 @ SV253 )
        = $true )
      | ( ( empty @ SV253 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1516]) ).

thf(1587,plain,
    ! [SV254: $i,SV293: $i] :
      ( ( ( in @ SV293 @ SV254 )
        = $false )
      | ( ( element @ SV293 @ SV254 )
        = $true )
      | ( ( empty @ SV254 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1517]) ).

thf(1588,plain,
    ! [SV255: $i,SV299: $i] :
      ( ( ( ~ ( element @ SV299 @ SV255 ) )
        = $true )
      | ( ( empty @ SV299 )
        = $true )
      | ( ( empty @ SV255 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1518]) ).

thf(1589,plain,
    ! [SV256: $i,SV300: $i] :
      ( ( ( ~ ( empty @ SV300 ) )
        = $true )
      | ( ( element @ SV300 @ SV256 )
        = $true )
      | ( ( empty @ SV256 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1519]) ).

thf(1590,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
        = $false )
      | ( ( ~ ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 ) )
        = $true )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1520]) ).

thf(1591,plain,
    ! [SV154: $i,SV200: $i,SV306: $i] :
      ( ( ( ~ ( in @ SV306 @ SV200 )
          | ( subset @ SV306 @ SV154 ) )
        = $true )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1522]) ).

thf(1592,plain,
    ! [SV200: $i,SV154: $i,SV307: $i] :
      ( ( ( ~ ( subset @ SV307 @ SV154 )
          | ( in @ SV307 @ SV200 ) )
        = $true )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1523]) ).

thf(1593,plain,
    ! [SV308: $i,SV157: $i,SV203: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV308 )
          | ~ ( in @ SV308 @ SV157 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1524]) ).

thf(1594,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ ( sK18_SY276 @ SV203 @ SV157 ) )
          | ~ ( in @ ( sK18_SY276 @ SV203 @ SV157 ) @ SV157 ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1525]) ).

thf(1595,plain,
    ! [SV204: $i,SV158: $i,SV309: $i] :
      ( ( ( ! [SY575: $i] :
              ( ~ ( in @ SV309 @ SY575 )
              | ~ ( in @ SY575 @ SV158 ) )
          | ( in @ SV309 @ SV204 ) )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1526]) ).

thf(1596,plain,
    ! [SV158: $i,SV204: $i,SV310: $i] :
      ( ( ( ~ ( in @ SV310 @ SV204 )
          | ~ ( ~ ( in @ SV310 @ ( sK16_D @ SV310 @ SV204 @ SV158 ) )
              | ~ ( in @ ( sK16_D @ SV310 @ SV204 @ SV158 ) @ SV158 ) ) )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1527]) ).

thf(1597,plain,
    ! [SV259: $i,SV206: $i,SV162: $i] :
      ( ( ( disjoint @ SV162 @ SV206 )
        = $false )
      | ( ( in @ SV259 @ SV162 )
        = $false )
      | ( ( in @ SV259 @ SV206 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1528]) ).

thf(1598,plain,
    ! [SV260: $i,SV78: $i] :
      ( ( ( subset @ SV78 @ SV260 )
        = $false )
      | ( ( subset @ ( relation_dom @ SV78 ) @ ( relation_dom @ SV260 ) )
        = $true )
      | ( ( relation @ SV260 )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1529]) ).

thf(1599,plain,
    ! [SV261: $i,SV78: $i] :
      ( ( ( subset @ SV78 @ SV261 )
        = $false )
      | ( ( subset @ ( relation_rng @ SV78 ) @ ( relation_rng @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1530]) ).

thf(1600,plain,
    ! [SV79: $i,SV311: $i] :
      ( ( ! [SY576: $i] :
            ( ~ ( in @ SV311 @ ( sK35_B @ SV79 ) )
            | ~ ( subset @ SY576 @ SV311 )
            | ( in @ SY576 @ ( sK35_B @ SV79 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1532]) ).

thf(1601,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
          | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 ) )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1536]) ).

thf(1602,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
              | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
          | ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
              | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) ) )
        = $false )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1537]) ).

thf(1603,plain,
    ! [SV247: $i,SV216: $i,SV81: $i] :
      ( ( ( ! [SY532: $i] :
              ( ~ ( in @ SY532 @ SV81 )
              | ( in @ SY532 @ SV216 )
              | ( in @ SY532 @ SV247 ) ) )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1538]) ).

thf(1604,plain,
    ! [SV216: $i,SV81: $i,SV247: $i] :
      ( ( ( ~ ( ~ ! [SY533: $i] :
                    ( ~ ( in @ SY533 @ SV247 )
                    | ( in @ SY533 @ SV81 ) )
              | ~ ! [SY534: $i] :
                    ( ~ ( in @ SY534 @ SV247 )
                    | ~ ( in @ SY534 @ SV216 ) ) ) )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1539]) ).

thf(1605,plain,
    ! [SV82: $i,SV264: $i] :
      ( ( ( ! [SY545: $i] :
              ~ ( in @ ( ordered_pair @ SY545 @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
          | ~ ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) )
        = $true )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1540]) ).

thf(1606,plain,
    ! [SV82: $i,SV264: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV264 @ SV82 ) @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
          | ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) )
        = $true )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1541]) ).

thf(1607,plain,
    ! [SV265: $i,SV82: $i] :
      ( ( ( ~ ! [SY546: $i] :
                ( ! [SY397: $i] :
                    ~ ( in @ ( ordered_pair @ SY397 @ SY546 ) @ SV82 )
                | ( in @ SY546 @ SV265 ) ) )
        = $false )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1542]) ).

thf(1608,plain,
    ! [SV82: $i,SV265: $i] :
      ( ( ( ~ ! [SY548: $i] :
                ( ~ ( in @ SY548 @ SV265 )
                | ( in @ ( ordered_pair @ ( sK12_D @ SY548 @ SV265 @ SV82 ) @ SY548 ) @ SV82 ) ) )
        = $false )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1542]) ).

thf(1609,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 )
                  | ~ ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) ) )
              | ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
          | ~ ( ! [SY570: $i] :
                  ( ~ ( in @ SY570 @ SV266 )
                  | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SY570 ) )
              | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) ) )
        = $false )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1543]) ).

thf(1610,plain,
    ! [SV267: $i,SV295: $i] :
      ( ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY571: $i] :
                    ( ~ ( ~ ( in @ ( sK38_D @ SY571 @ SV295 @ SV267 ) @ SV267 )
                        | ~ ~ ( in @ SY571 @ ( sK38_D @ SY571 @ SV295 @ SV267 ) ) )
                    | ( in @ SY571 @ SV295 ) )
              | ~ ! [SY572: $i] :
                    ( ~ ( in @ SY572 @ SV295 )
                    | ! [SY554: $i] :
                        ( ~ ( in @ SY554 @ SV267 )
                        | ( in @ SY572 @ SY554 ) ) ) ) )
        = $true )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1544]) ).

thf(1611,plain,
    ! [SV268: $i,SV301: $i] :
      ( ( ( ( SV301
           != ( set_meet @ SV268 ) ) )
        = $true )
      | ( ( SV301 = empty_set )
        = $true )
      | ( ( SV268 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1545]) ).

thf(1612,plain,
    ! [SV269: $i,SV302: $i] :
      ( ( ( ( SV302 != empty_set ) )
        = $true )
      | ( ( SV302
          = ( set_meet @ SV269 ) )
        = $true )
      | ( ( SV269 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1546]) ).

thf(1613,plain,
    ! [SV282: $i,SV270: $i] :
      ( ( ( SV270 = SV282 )
        = $false )
      | ( ( proper_subset @ SV270 @ SV282 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1547]) ).

thf(1614,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
              | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
              | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) ) )
        = $false )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1549]) ).

thf(1615,plain,
    ! [SV84: $i,SV273: $i] :
      ( ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY559: $i,SY560: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY559 @ SY560 ) @ SV273 )
                    | ( in @ ( ordered_pair @ SY560 @ SY559 ) @ SV84 ) )
              | ~ ! [SY561: $i,SY562: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY562 @ SY561 ) @ SV84 )
                    | ( in @ ( ordered_pair @ SY561 @ SY562 ) @ SV273 ) ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1550]) ).

thf(1616,plain,
    ! [SV85: $i,SV284: $i] :
      ( ( ( ~ ! [SY567: $i] :
                ( ~ ( subset @ SY567 @ SV284 )
                | ( in @ SY567 @ ( sK2_SY267 @ SV284 @ SV85 ) ) ) )
        = $false )
      | ( ( ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1551]) ).

thf(1617,plain,
    ! [SV85: $i,SV284: $i] :
      ( ( ( ~ ( in @ ( sK2_SY267 @ SV284 @ SV85 ) @ ( sK1_B @ SV85 ) ) )
        = $false )
      | ( ( ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1551]) ).

thf(1618,plain,
    ! [SV85: $i,SV312: $i] :
      ( ( ! [SY577: $i] :
            ( ~ ( in @ SV312 @ ( sK1_B @ SV85 ) )
            | ~ ( subset @ SY577 @ SV312 )
            | ( in @ SY577 @ ( sK1_B @ SV85 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1552]) ).

thf(1619,plain,
    ! [SV303: $i,SV296: $i,SV173: $i] :
      ( ( ( ( sK30_B @ SV173 )
          = ( ordered_pair @ SV296 @ SV303 ) )
        = $false )
      | ( ( relation @ SV173 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1554]) ).

thf(1620,plain,
    ! [SV297: $i,SV289: $i,SV88: $i] :
      ( ( ( subset @ ( unordered_pair @ SV88 @ SV289 ) @ SV297 )
        = $false )
      | ( ( in @ SV88 @ SV297 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1560]) ).

thf(1621,plain,
    ! [SV298: $i,SV290: $i,SV88: $i] :
      ( ( ( subset @ ( unordered_pair @ SV88 @ SV290 ) @ SV298 )
        = $false )
      | ( ( in @ SV290 @ SV298 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1561]) ).

thf(1622,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( ( sK27_C @ SV236 @ SV187 )
          = SV187 )
        = $false )
      | ( ( ~ ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 ) )
        = $true )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1564]) ).

thf(1623,plain,
    ! [SV237: $i,SV188: $i,SV313: $i] :
      ( ( ( ( SV313 != SV188 )
          | ( in @ SV313 @ SV237 ) )
        = $true )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1566]) ).

thf(1624,plain,
    ! [SV188: $i,SV237: $i,SV314: $i] :
      ( ( ( ~ ( in @ SV314 @ SV237 )
          | ( SV314 = SV188 ) )
        = $true )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1567]) ).

thf(1625,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
              | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) ) )
        = $false )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1570]) ).

thf(1626,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
              | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) ) )
        = $false )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1570]) ).

thf(1627,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 )
        = $true )
      | ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 )
        = $true )
      | ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1571]) ).

thf(1628,plain,
    ! [SV194: $i,SV73: $i,SV241: $i,SV315: $i] :
      ( ( ( ~ ( in @ SV315 @ SV241 )
          | ( in @ SV315 @ SV73 )
          | ( in @ SV315 @ SV194 ) )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1572]) ).

thf(1629,plain,
    ! [SV194: $i,SV241: $i,SV73: $i] :
      ( ( ( ~ ! [SY524: $i] :
                ( ~ ( in @ SY524 @ SV73 )
                | ( in @ SY524 @ SV241 ) )
          | ~ ! [SY525: $i] :
                ( ~ ( in @ SY525 @ SV194 )
                | ( in @ SY525 @ SV241 ) ) )
        = $false )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1573]) ).

thf(1630,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
              | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
               != SV74 ) ) )
        = $false )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1574]) ).

thf(1631,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
              | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
               != SV195 ) ) )
        = $false )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1574]) ).

thf(1632,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ( sK25_D @ SV242 @ SV195 @ SV74 )
          = SV74 )
        = $true )
      | ( ( ( sK25_D @ SV242 @ SV195 @ SV74 )
          = SV195 )
        = $true )
      | ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1575]) ).

thf(1633,plain,
    ! [SV196: $i,SV74: $i,SV243: $i,SV316: $i] :
      ( ( ( ~ ( in @ SV316 @ SV243 )
          | ( SV316 = SV74 )
          | ( SV316 = SV196 ) )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1576]) ).

thf(1634,plain,
    ! [SV196: $i,SV243: $i,SV74: $i] :
      ( ( ( ~ ! [SY527: $i] :
                ( ( SY527 != SV74 )
                | ( in @ SY527 @ SV243 ) )
          | ~ ! [SY528: $i] :
                ( ( SY528 != SV196 )
                | ( in @ SY528 @ SV243 ) ) )
        = $false )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1577]) ).

thf(1635,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1578]) ).

thf(1636,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
              | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) ) )
        = $false )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1579]) ).

thf(1637,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ~ ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
              | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) ) )
        = $false )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1579]) ).

thf(1638,plain,
    ! [SV245: $i,SV198: $i,SV75: $i,SV317: $i] :
      ( ( ( ~ ( in @ SV317 @ SV75 )
          | ~ ( in @ SV317 @ SV198 )
          | ( in @ SV317 @ SV245 ) )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1580]) ).

thf(1639,plain,
    ! [SV198: $i,SV75: $i,SV245: $i] :
      ( ( ( ~ ! [SY530: $i] :
                ( ~ ( in @ SY530 @ SV245 )
                | ( in @ SY530 @ SV75 ) )
          | ~ ! [SY531: $i] :
                ( ~ ( in @ SY531 @ SV245 )
                | ( in @ SY531 @ SV198 ) ) )
        = $false )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1581]) ).

thf(1640,plain,
    ! [SV76: $i,SV251: $i] :
      ( ( ( ! [SY535: $i] :
              ~ ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ SY535 ) @ SV76 ) )
        = $true )
      | ( ( ~ ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) )
        = $true )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1582]) ).

thf(1641,plain,
    ! [SV76: $i,SV251: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ ( sK21_SY278 @ SV251 @ SV76 ) ) @ SV76 )
        = $true )
      | ( ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 )
        = $true )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1583]) ).

thf(1642,plain,
    ! [SV252: $i,SV76: $i] :
      ( ( ( ! [SY536: $i] :
              ( ! [SY377: $i] :
                  ~ ( in @ ( ordered_pair @ SY536 @ SY377 ) @ SV76 )
              | ( in @ SY536 @ SV252 ) ) )
        = $true )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1584]) ).

thf(1643,plain,
    ! [SV76: $i,SV252: $i] :
      ( ( ( ! [SY538: $i] :
              ( ~ ( in @ SY538 @ SV252 )
              | ( in @ ( ordered_pair @ SY538 @ ( sK19_D @ SY538 @ SV252 @ SV76 ) ) @ SV76 ) ) )
        = $true )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1585]) ).

thf(1644,plain,
    ! [SV255: $i,SV299: $i] :
      ( ( ( element @ SV299 @ SV255 )
        = $false )
      | ( ( empty @ SV299 )
        = $true )
      | ( ( empty @ SV255 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1588]) ).

thf(1645,plain,
    ! [SV256: $i,SV300: $i] :
      ( ( ( empty @ SV300 )
        = $false )
      | ( ( element @ SV300 @ SV256 )
        = $true )
      | ( ( empty @ SV256 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1589]) ).

thf(1646,plain,
    ! [SV153: $i,SV199: $i] :
      ( ( ( subset @ ( sK26_C @ SV199 @ SV153 ) @ SV153 )
        = $false )
      | ( ( in @ ( sK26_C @ SV199 @ SV153 ) @ SV199 )
        = $false )
      | ( ( SV199
          = ( powerset @ SV153 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1590]) ).

thf(1647,plain,
    ! [SV154: $i,SV200: $i,SV306: $i] :
      ( ( ( ~ ( in @ SV306 @ SV200 ) )
        = $true )
      | ( ( subset @ SV306 @ SV154 )
        = $true )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1591]) ).

thf(1648,plain,
    ! [SV200: $i,SV154: $i,SV307: $i] :
      ( ( ( ~ ( subset @ SV307 @ SV154 ) )
        = $true )
      | ( ( in @ SV307 @ SV200 )
        = $true )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1592]) ).

thf(1649,plain,
    ! [SV308: $i,SV157: $i,SV203: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV308 ) )
        = $true )
      | ( ( ~ ( in @ SV308 @ SV157 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1593]) ).

thf(1650,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ ( sK18_SY276 @ SV203 @ SV157 ) ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1594]) ).

thf(1651,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( ~ ( in @ ( sK18_SY276 @ SV203 @ SV157 ) @ SV157 ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1594]) ).

thf(1652,plain,
    ! [SV204: $i,SV158: $i,SV309: $i] :
      ( ( ( ! [SY575: $i] :
              ( ~ ( in @ SV309 @ SY575 )
              | ~ ( in @ SY575 @ SV158 ) ) )
        = $true )
      | ( ( in @ SV309 @ SV204 )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1595]) ).

thf(1653,plain,
    ! [SV158: $i,SV204: $i,SV310: $i] :
      ( ( ( ~ ( in @ SV310 @ SV204 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV310 @ ( sK16_D @ SV310 @ SV204 @ SV158 ) )
              | ~ ( in @ ( sK16_D @ SV310 @ SV204 @ SV158 ) @ SV158 ) ) )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1596]) ).

thf(1654,plain,
    ! [SV318: $i,SV79: $i,SV311: $i] :
      ( ( ~ ( in @ SV311 @ ( sK35_B @ SV79 ) )
        | ~ ( subset @ SV318 @ SV311 )
        | ( in @ SV318 @ ( sK35_B @ SV79 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1600]) ).

thf(1655,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 ) )
        = $true )
      | ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1601]) ).

thf(1656,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
              | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) ) )
        = $false )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1602]) ).

thf(1657,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
              | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) ) )
        = $false )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1602]) ).

thf(1658,plain,
    ! [SV247: $i,SV216: $i,SV81: $i,SV319: $i] :
      ( ( ( ~ ( in @ SV319 @ SV81 )
          | ( in @ SV319 @ SV216 )
          | ( in @ SV319 @ SV247 ) )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1603]) ).

thf(1659,plain,
    ! [SV216: $i,SV81: $i,SV247: $i] :
      ( ( ( ~ ! [SY533: $i] :
                ( ~ ( in @ SY533 @ SV247 )
                | ( in @ SY533 @ SV81 ) )
          | ~ ! [SY534: $i] :
                ( ~ ( in @ SY534 @ SV247 )
                | ~ ( in @ SY534 @ SV216 ) ) )
        = $false )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1604]) ).

thf(1660,plain,
    ! [SV82: $i,SV264: $i] :
      ( ( ( ! [SY545: $i] :
              ~ ( in @ ( ordered_pair @ SY545 @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 ) )
        = $true )
      | ( ( ~ ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) )
        = $true )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1605]) ).

thf(1661,plain,
    ! [SV82: $i,SV264: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV264 @ SV82 ) @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
        = $true )
      | ( ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 )
        = $true )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1606]) ).

thf(1662,plain,
    ! [SV265: $i,SV82: $i] :
      ( ( ( ! [SY546: $i] :
              ( ! [SY397: $i] :
                  ~ ( in @ ( ordered_pair @ SY397 @ SY546 ) @ SV82 )
              | ( in @ SY546 @ SV265 ) ) )
        = $true )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1607]) ).

thf(1663,plain,
    ! [SV82: $i,SV265: $i] :
      ( ( ( ! [SY548: $i] :
              ( ~ ( in @ SY548 @ SV265 )
              | ( in @ ( ordered_pair @ ( sK12_D @ SY548 @ SV265 @ SV82 ) @ SY548 ) @ SV82 ) ) )
        = $true )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1608]) ).

thf(1664,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 )
                  | ~ ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) ) )
              | ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) ) )
        = $false )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1609]) ).

thf(1665,plain,
    ! [SV294: $i,SV266: $i] :
      ( ( ( ~ ( ! [SY570: $i] :
                  ( ~ ( in @ SY570 @ SV266 )
                  | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SY570 ) )
              | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) ) )
        = $false )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1609]) ).

thf(1666,plain,
    ! [SV267: $i,SV295: $i] :
      ( ( ( ~ ! [SY571: $i] :
                ( ~ ( ~ ( in @ ( sK38_D @ SY571 @ SV295 @ SV267 ) @ SV267 )
                    | ~ ~ ( in @ SY571 @ ( sK38_D @ SY571 @ SV295 @ SV267 ) ) )
                | ( in @ SY571 @ SV295 ) )
          | ~ ! [SY572: $i] :
                ( ~ ( in @ SY572 @ SV295 )
                | ! [SY554: $i] :
                    ( ~ ( in @ SY554 @ SV267 )
                    | ( in @ SY572 @ SY554 ) ) ) )
        = $false )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1610]) ).

thf(1667,plain,
    ! [SV268: $i,SV301: $i] :
      ( ( ( SV301
          = ( set_meet @ SV268 ) )
        = $false )
      | ( ( SV301 = empty_set )
        = $true )
      | ( ( SV268 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1611]) ).

thf(1668,plain,
    ! [SV269: $i,SV302: $i] :
      ( ( ( SV302 = empty_set )
        = $false )
      | ( ( SV302
          = ( set_meet @ SV269 ) )
        = $true )
      | ( ( SV269 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1612]) ).

thf(1669,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
              | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) ) )
        = $false )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1614]) ).

thf(1670,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
              | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) ) )
        = $false )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1614]) ).

thf(1671,plain,
    ! [SV84: $i,SV273: $i] :
      ( ( ( ~ ! [SY559: $i,SY560: $i] :
                ( ~ ( in @ ( ordered_pair @ SY559 @ SY560 ) @ SV273 )
                | ( in @ ( ordered_pair @ SY560 @ SY559 ) @ SV84 ) )
          | ~ ! [SY561: $i,SY562: $i] :
                ( ~ ( in @ ( ordered_pair @ SY562 @ SY561 ) @ SV84 )
                | ( in @ ( ordered_pair @ SY561 @ SY562 ) @ SV273 ) ) )
        = $false )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1615]) ).

thf(1672,plain,
    ! [SV85: $i,SV284: $i] :
      ( ( ( ! [SY567: $i] :
              ( ~ ( subset @ SY567 @ SV284 )
              | ( in @ SY567 @ ( sK2_SY267 @ SV284 @ SV85 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1616]) ).

thf(1673,plain,
    ! [SV85: $i,SV284: $i] :
      ( ( ( in @ ( sK2_SY267 @ SV284 @ SV85 ) @ ( sK1_B @ SV85 ) )
        = $true )
      | ( ( ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1617]) ).

thf(1674,plain,
    ! [SV320: $i,SV85: $i,SV312: $i] :
      ( ( ~ ( in @ SV312 @ ( sK1_B @ SV85 ) )
        | ~ ( subset @ SV320 @ SV312 )
        | ( in @ SV320 @ ( sK1_B @ SV85 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1618]) ).

thf(1675,plain,
    ! [SV187: $i,SV236: $i] :
      ( ( ( in @ ( sK27_C @ SV236 @ SV187 ) @ SV236 )
        = $false )
      | ( ( ( sK27_C @ SV236 @ SV187 )
          = SV187 )
        = $false )
      | ( ( SV236
          = ( singleton @ SV187 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1622]) ).

thf(1676,plain,
    ! [SV237: $i,SV188: $i,SV313: $i] :
      ( ( ( ( SV313 != SV188 ) )
        = $true )
      | ( ( in @ SV313 @ SV237 )
        = $true )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1623]) ).

thf(1677,plain,
    ! [SV188: $i,SV237: $i,SV314: $i] :
      ( ( ( ~ ( in @ SV314 @ SV237 ) )
        = $true )
      | ( ( SV314 = SV188 )
        = $true )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1624]) ).

thf(1678,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
          | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1625]) ).

thf(1679,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
          | ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1626]) ).

thf(1680,plain,
    ! [SV194: $i,SV73: $i,SV241: $i,SV315: $i] :
      ( ( ( ~ ( in @ SV315 @ SV241 ) )
        = $true )
      | ( ( ( in @ SV315 @ SV73 )
          | ( in @ SV315 @ SV194 ) )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1628]) ).

thf(1681,plain,
    ! [SV194: $i,SV241: $i,SV73: $i] :
      ( ( ( ~ ! [SY524: $i] :
                ( ~ ( in @ SY524 @ SV73 )
                | ( in @ SY524 @ SV241 ) ) )
        = $false )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1629]) ).

thf(1682,plain,
    ! [SV73: $i,SV241: $i,SV194: $i] :
      ( ( ( ~ ! [SY525: $i] :
                ( ~ ( in @ SY525 @ SV194 )
                | ( in @ SY525 @ SV241 ) ) )
        = $false )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1629]) ).

thf(1683,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
          | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
           != SV74 ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1630]) ).

thf(1684,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
          | ( ( sK25_D @ SV242 @ SV195 @ SV74 )
           != SV195 ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1631]) ).

thf(1685,plain,
    ! [SV196: $i,SV74: $i,SV243: $i,SV316: $i] :
      ( ( ( ~ ( in @ SV316 @ SV243 ) )
        = $true )
      | ( ( ( SV316 = SV74 )
          | ( SV316 = SV196 ) )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1633]) ).

thf(1686,plain,
    ! [SV196: $i,SV243: $i,SV74: $i] :
      ( ( ( ~ ! [SY527: $i] :
                ( ( SY527 != SV74 )
                | ( in @ SY527 @ SV243 ) ) )
        = $false )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1634]) ).

thf(1687,plain,
    ! [SV74: $i,SV243: $i,SV196: $i] :
      ( ( ( ~ ! [SY528: $i] :
                ( ( SY528 != SV196 )
                | ( in @ SY528 @ SV243 ) ) )
        = $false )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1634]) ).

thf(1688,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
        = $false )
      | ( ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1635]) ).

thf(1689,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
          | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1636]) ).

thf(1690,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
          | ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1637]) ).

thf(1691,plain,
    ! [SV245: $i,SV198: $i,SV75: $i,SV317: $i] :
      ( ( ( ~ ( in @ SV317 @ SV75 )
          | ~ ( in @ SV317 @ SV198 ) )
        = $true )
      | ( ( in @ SV317 @ SV245 )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1638]) ).

thf(1692,plain,
    ! [SV198: $i,SV75: $i,SV245: $i] :
      ( ( ( ~ ! [SY530: $i] :
                ( ~ ( in @ SY530 @ SV245 )
                | ( in @ SY530 @ SV75 ) ) )
        = $false )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1639]) ).

thf(1693,plain,
    ! [SV75: $i,SV198: $i,SV245: $i] :
      ( ( ( ~ ! [SY531: $i] :
                ( ~ ( in @ SY531 @ SV245 )
                | ( in @ SY531 @ SV198 ) ) )
        = $false )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1639]) ).

thf(1694,plain,
    ! [SV321: $i,SV76: $i,SV251: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ SV321 ) @ SV76 ) )
        = $true )
      | ( ( ~ ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) )
        = $true )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1640]) ).

thf(1695,plain,
    ! [SV252: $i,SV76: $i,SV322: $i] :
      ( ( ( ! [SY578: $i] :
              ~ ( in @ ( ordered_pair @ SV322 @ SY578 ) @ SV76 )
          | ( in @ SV322 @ SV252 ) )
        = $true )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1642]) ).

thf(1696,plain,
    ! [SV76: $i,SV252: $i,SV323: $i] :
      ( ( ( ~ ( in @ SV323 @ SV252 )
          | ( in @ ( ordered_pair @ SV323 @ ( sK19_D @ SV323 @ SV252 @ SV76 ) ) @ SV76 ) )
        = $true )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1643]) ).

thf(1697,plain,
    ! [SV154: $i,SV200: $i,SV306: $i] :
      ( ( ( in @ SV306 @ SV200 )
        = $false )
      | ( ( subset @ SV306 @ SV154 )
        = $true )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1647]) ).

thf(1698,plain,
    ! [SV200: $i,SV154: $i,SV307: $i] :
      ( ( ( subset @ SV307 @ SV154 )
        = $false )
      | ( ( in @ SV307 @ SV200 )
        = $true )
      | ( ( SV200
          = ( powerset @ SV154 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1648]) ).

thf(1699,plain,
    ! [SV308: $i,SV157: $i,SV203: $i] :
      ( ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV308 )
        = $false )
      | ( ( ~ ( in @ SV308 @ SV157 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1649]) ).

thf(1700,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ ( sK18_SY276 @ SV203 @ SV157 ) )
        = $true )
      | ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1650]) ).

thf(1701,plain,
    ! [SV157: $i,SV203: $i] :
      ( ( ( in @ ( sK18_SY276 @ SV203 @ SV157 ) @ SV157 )
        = $true )
      | ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1651]) ).

thf(1702,plain,
    ! [SV204: $i,SV158: $i,SV324: $i,SV309: $i] :
      ( ( ( ~ ( in @ SV309 @ SV324 )
          | ~ ( in @ SV324 @ SV158 ) )
        = $true )
      | ( ( in @ SV309 @ SV204 )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1652]) ).

thf(1703,plain,
    ! [SV158: $i,SV204: $i,SV310: $i] :
      ( ( ( in @ SV310 @ SV204 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV310 @ ( sK16_D @ SV310 @ SV204 @ SV158 ) )
              | ~ ( in @ ( sK16_D @ SV310 @ SV204 @ SV158 ) @ SV158 ) ) )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1653]) ).

thf(1704,plain,
    ! [SV318: $i,SV79: $i,SV311: $i] :
      ( ( ( ~ ( in @ SV311 @ ( sK35_B @ SV79 ) )
          | ~ ( subset @ SV318 @ SV311 ) )
        = $true )
      | ( ( in @ SV318 @ ( sK35_B @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1654]) ).

thf(1705,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
        = $false )
      | ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1655]) ).

thf(1706,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
          | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1656]) ).

thf(1707,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
          | ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 ) )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1657]) ).

thf(1708,plain,
    ! [SV247: $i,SV216: $i,SV81: $i,SV319: $i] :
      ( ( ( ~ ( in @ SV319 @ SV81 )
          | ( in @ SV319 @ SV216 ) )
        = $true )
      | ( ( in @ SV319 @ SV247 )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1658]) ).

thf(1709,plain,
    ! [SV216: $i,SV81: $i,SV247: $i] :
      ( ( ( ~ ! [SY533: $i] :
                ( ~ ( in @ SY533 @ SV247 )
                | ( in @ SY533 @ SV81 ) ) )
        = $false )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1659]) ).

thf(1710,plain,
    ! [SV81: $i,SV216: $i,SV247: $i] :
      ( ( ( ~ ! [SY534: $i] :
                ( ~ ( in @ SY534 @ SV247 )
                | ~ ( in @ SY534 @ SV216 ) ) )
        = $false )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1659]) ).

thf(1711,plain,
    ! [SV82: $i,SV264: $i,SV325: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV325 @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 ) )
        = $true )
      | ( ( ~ ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) )
        = $true )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1660]) ).

thf(1712,plain,
    ! [SV265: $i,SV82: $i,SV326: $i] :
      ( ( ( ! [SY579: $i] :
              ~ ( in @ ( ordered_pair @ SY579 @ SV326 ) @ SV82 )
          | ( in @ SV326 @ SV265 ) )
        = $true )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1662]) ).

thf(1713,plain,
    ! [SV82: $i,SV265: $i,SV327: $i] :
      ( ( ( ~ ( in @ SV327 @ SV265 )
          | ( in @ ( ordered_pair @ ( sK12_D @ SV327 @ SV265 @ SV82 ) @ SV327 ) @ SV82 ) )
        = $true )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1663]) ).

thf(1714,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 )
              | ~ ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) ) )
          | ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1664]) ).

thf(1715,plain,
    ! [SV294: $i,SV266: $i] :
      ( ( ( ! [SY570: $i] :
              ( ~ ( in @ SY570 @ SV266 )
              | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SY570 ) )
          | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1665]) ).

thf(1716,plain,
    ! [SV267: $i,SV295: $i] :
      ( ( ( ~ ! [SY571: $i] :
                ( ~ ( ~ ( in @ ( sK38_D @ SY571 @ SV295 @ SV267 ) @ SV267 )
                    | ~ ~ ( in @ SY571 @ ( sK38_D @ SY571 @ SV295 @ SV267 ) ) )
                | ( in @ SY571 @ SV295 ) ) )
        = $false )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1666]) ).

thf(1717,plain,
    ! [SV267: $i,SV295: $i] :
      ( ( ( ~ ! [SY572: $i] :
                ( ~ ( in @ SY572 @ SV295 )
                | ! [SY554: $i] :
                    ( ~ ( in @ SY554 @ SV267 )
                    | ( in @ SY572 @ SY554 ) ) ) )
        = $false )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1666]) ).

thf(1718,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
          | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) )
        = $true )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1669]) ).

thf(1719,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
          | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) )
        = $true )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1670]) ).

thf(1720,plain,
    ! [SV84: $i,SV273: $i] :
      ( ( ( ~ ! [SY559: $i,SY560: $i] :
                ( ~ ( in @ ( ordered_pair @ SY559 @ SY560 ) @ SV273 )
                | ( in @ ( ordered_pair @ SY560 @ SY559 ) @ SV84 ) ) )
        = $false )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1671]) ).

thf(1721,plain,
    ! [SV273: $i,SV84: $i] :
      ( ( ( ~ ! [SY561: $i,SY562: $i] :
                ( ~ ( in @ ( ordered_pair @ SY562 @ SY561 ) @ SV84 )
                | ( in @ ( ordered_pair @ SY561 @ SY562 ) @ SV273 ) ) )
        = $false )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1671]) ).

thf(1722,plain,
    ! [SV85: $i,SV284: $i,SV328: $i] :
      ( ( ( ~ ( subset @ SV328 @ SV284 )
          | ( in @ SV328 @ ( sK2_SY267 @ SV284 @ SV85 ) ) )
        = $true )
      | ( ( ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1672]) ).

thf(1723,plain,
    ! [SV85: $i,SV284: $i] :
      ( ( ( in @ SV284 @ ( sK1_B @ SV85 ) )
        = $false )
      | ( ( in @ ( sK2_SY267 @ SV284 @ SV85 ) @ ( sK1_B @ SV85 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1673]) ).

thf(1724,plain,
    ! [SV320: $i,SV85: $i,SV312: $i] :
      ( ( ( ~ ( in @ SV312 @ ( sK1_B @ SV85 ) )
          | ~ ( subset @ SV320 @ SV312 ) )
        = $true )
      | ( ( in @ SV320 @ ( sK1_B @ SV85 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1674]) ).

thf(1725,plain,
    ! [SV237: $i,SV188: $i,SV313: $i] :
      ( ( ( SV313 = SV188 )
        = $false )
      | ( ( in @ SV313 @ SV237 )
        = $true )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1676]) ).

thf(1726,plain,
    ! [SV188: $i,SV237: $i,SV314: $i] :
      ( ( ( in @ SV314 @ SV237 )
        = $false )
      | ( ( SV314 = SV188 )
        = $true )
      | ( ( SV237
          = ( singleton @ SV188 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1677]) ).

thf(1727,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1678]) ).

thf(1728,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1679]) ).

thf(1729,plain,
    ! [SV194: $i,SV73: $i,SV241: $i,SV315: $i] :
      ( ( ( in @ SV315 @ SV241 )
        = $false )
      | ( ( ( in @ SV315 @ SV73 )
          | ( in @ SV315 @ SV194 ) )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1680]) ).

thf(1730,plain,
    ! [SV194: $i,SV241: $i,SV73: $i] :
      ( ( ( ! [SY524: $i] :
              ( ~ ( in @ SY524 @ SV73 )
              | ( in @ SY524 @ SV241 ) ) )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1681]) ).

thf(1731,plain,
    ! [SV73: $i,SV241: $i,SV194: $i] :
      ( ( ( ! [SY525: $i] :
              ( ~ ( in @ SY525 @ SV194 )
              | ( in @ SY525 @ SV241 ) ) )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1682]) ).

thf(1732,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 ) )
        = $true )
      | ( ( ( ( sK25_D @ SV242 @ SV195 @ SV74 )
           != SV74 ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1683]) ).

thf(1733,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ~ ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 ) )
        = $true )
      | ( ( ( ( sK25_D @ SV242 @ SV195 @ SV74 )
           != SV195 ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1684]) ).

thf(1734,plain,
    ! [SV196: $i,SV74: $i,SV243: $i,SV316: $i] :
      ( ( ( in @ SV316 @ SV243 )
        = $false )
      | ( ( ( SV316 = SV74 )
          | ( SV316 = SV196 ) )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1685]) ).

thf(1735,plain,
    ! [SV196: $i,SV243: $i,SV74: $i] :
      ( ( ( ! [SY527: $i] :
              ( ( SY527 != SV74 )
              | ( in @ SY527 @ SV243 ) ) )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1686]) ).

thf(1736,plain,
    ! [SV74: $i,SV243: $i,SV196: $i] :
      ( ( ( ! [SY528: $i] :
              ( ( SY528 != SV196 )
              | ( in @ SY528 @ SV243 ) ) )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1687]) ).

thf(1737,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
        = $false )
      | ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
        = $false )
      | ( ( ~ ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 ) )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1688]) ).

thf(1738,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
        = $true )
      | ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1689]) ).

thf(1739,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
        = $true )
      | ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 )
        = $true )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1690]) ).

thf(1740,plain,
    ! [SV245: $i,SV198: $i,SV75: $i,SV317: $i] :
      ( ( ( ~ ( in @ SV317 @ SV75 ) )
        = $true )
      | ( ( ~ ( in @ SV317 @ SV198 ) )
        = $true )
      | ( ( in @ SV317 @ SV245 )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1691]) ).

thf(1741,plain,
    ! [SV198: $i,SV75: $i,SV245: $i] :
      ( ( ( ! [SY530: $i] :
              ( ~ ( in @ SY530 @ SV245 )
              | ( in @ SY530 @ SV75 ) ) )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1692]) ).

thf(1742,plain,
    ! [SV75: $i,SV198: $i,SV245: $i] :
      ( ( ( ! [SY531: $i] :
              ( ~ ( in @ SY531 @ SV245 )
              | ( in @ SY531 @ SV198 ) ) )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1693]) ).

thf(1743,plain,
    ! [SV321: $i,SV76: $i,SV251: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ SV321 ) @ SV76 )
        = $false )
      | ( ( ~ ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 ) )
        = $true )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1694]) ).

thf(1744,plain,
    ! [SV252: $i,SV76: $i,SV322: $i] :
      ( ( ( ! [SY578: $i] :
              ~ ( in @ ( ordered_pair @ SV322 @ SY578 ) @ SV76 ) )
        = $true )
      | ( ( in @ SV322 @ SV252 )
        = $true )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1695]) ).

thf(1745,plain,
    ! [SV76: $i,SV252: $i,SV323: $i] :
      ( ( ( ~ ( in @ SV323 @ SV252 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV323 @ ( sK19_D @ SV323 @ SV252 @ SV76 ) ) @ SV76 )
        = $true )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1696]) ).

thf(1746,plain,
    ! [SV203: $i,SV157: $i,SV308: $i] :
      ( ( ( in @ SV308 @ SV157 )
        = $false )
      | ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV308 )
        = $false )
      | ( ( ~ ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 ) )
        = $true )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1699]) ).

thf(1747,plain,
    ! [SV204: $i,SV158: $i,SV324: $i,SV309: $i] :
      ( ( ( ~ ( in @ SV309 @ SV324 ) )
        = $true )
      | ( ( ~ ( in @ SV324 @ SV158 ) )
        = $true )
      | ( ( in @ SV309 @ SV204 )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1702]) ).

thf(1748,plain,
    ! [SV158: $i,SV204: $i,SV310: $i] :
      ( ( ( ~ ( in @ SV310 @ ( sK16_D @ SV310 @ SV204 @ SV158 ) )
          | ~ ( in @ ( sK16_D @ SV310 @ SV204 @ SV158 ) @ SV158 ) )
        = $false )
      | ( ( in @ SV310 @ SV204 )
        = $false )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1703]) ).

thf(1749,plain,
    ! [SV318: $i,SV79: $i,SV311: $i] :
      ( ( ( ~ ( in @ SV311 @ ( sK35_B @ SV79 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV318 @ SV311 ) )
        = $true )
      | ( ( in @ SV318 @ ( sK35_B @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1704]) ).

thf(1750,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 )
        = $false )
      | ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
        = $true )
      | ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
        = $false )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1705]) ).

thf(1751,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV81 )
        = $true )
      | ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1706]) ).

thf(1752,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 ) )
        = $true )
      | ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1707]) ).

thf(1753,plain,
    ! [SV247: $i,SV216: $i,SV81: $i,SV319: $i] :
      ( ( ( ~ ( in @ SV319 @ SV81 ) )
        = $true )
      | ( ( in @ SV319 @ SV216 )
        = $true )
      | ( ( in @ SV319 @ SV247 )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1708]) ).

thf(1754,plain,
    ! [SV216: $i,SV81: $i,SV247: $i] :
      ( ( ( ! [SY533: $i] :
              ( ~ ( in @ SY533 @ SV247 )
              | ( in @ SY533 @ SV81 ) ) )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1709]) ).

thf(1755,plain,
    ! [SV81: $i,SV216: $i,SV247: $i] :
      ( ( ( ! [SY534: $i] :
              ( ~ ( in @ SY534 @ SV247 )
              | ~ ( in @ SY534 @ SV216 ) ) )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1710]) ).

thf(1756,plain,
    ! [SV82: $i,SV264: $i,SV325: $i] :
      ( ( ( in @ ( ordered_pair @ SV325 @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
        = $false )
      | ( ( ~ ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 ) )
        = $true )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1711]) ).

thf(1757,plain,
    ! [SV265: $i,SV82: $i,SV326: $i] :
      ( ( ( ! [SY579: $i] :
              ~ ( in @ ( ordered_pair @ SY579 @ SV326 ) @ SV82 ) )
        = $true )
      | ( ( in @ SV326 @ SV265 )
        = $true )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1712]) ).

thf(1758,plain,
    ! [SV82: $i,SV265: $i,SV327: $i] :
      ( ( ( ~ ( in @ SV327 @ SV265 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK12_D @ SV327 @ SV265 @ SV82 ) @ SV327 ) @ SV82 )
        = $true )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1713]) ).

thf(1759,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 )
              | ~ ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1714]) ).

thf(1760,plain,
    ! [SV294: $i,SV266: $i] :
      ( ( ( ! [SY570: $i] :
              ( ~ ( in @ SY570 @ SV266 )
              | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SY570 ) ) )
        = $true )
      | ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1715]) ).

thf(1761,plain,
    ! [SV267: $i,SV295: $i] :
      ( ( ( ! [SY571: $i] :
              ( ~ ( ~ ( in @ ( sK38_D @ SY571 @ SV295 @ SV267 ) @ SV267 )
                  | ~ ~ ( in @ SY571 @ ( sK38_D @ SY571 @ SV295 @ SV267 ) ) )
              | ( in @ SY571 @ SV295 ) ) )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1716]) ).

thf(1762,plain,
    ! [SV267: $i,SV295: $i] :
      ( ( ( ! [SY572: $i] :
              ( ~ ( in @ SY572 @ SV295 )
              | ! [SY554: $i] :
                  ( ~ ( in @ SY554 @ SV267 )
                  | ( in @ SY572 @ SY554 ) ) ) )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1717]) ).

thf(1763,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) )
        = $true )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1718]) ).

thf(1764,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 )
        = $true )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1719]) ).

thf(1765,plain,
    ! [SV84: $i,SV273: $i] :
      ( ( ( ! [SY559: $i,SY560: $i] :
              ( ~ ( in @ ( ordered_pair @ SY559 @ SY560 ) @ SV273 )
              | ( in @ ( ordered_pair @ SY560 @ SY559 ) @ SV84 ) ) )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1720]) ).

thf(1766,plain,
    ! [SV273: $i,SV84: $i] :
      ( ( ( ! [SY561: $i,SY562: $i] :
              ( ~ ( in @ ( ordered_pair @ SY562 @ SY561 ) @ SV84 )
              | ( in @ ( ordered_pair @ SY561 @ SY562 ) @ SV273 ) ) )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1721]) ).

thf(1767,plain,
    ! [SV85: $i,SV284: $i,SV328: $i] :
      ( ( ( ~ ( subset @ SV328 @ SV284 ) )
        = $true )
      | ( ( in @ SV328 @ ( sK2_SY267 @ SV284 @ SV85 ) )
        = $true )
      | ( ( ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1722]) ).

thf(1768,plain,
    ! [SV320: $i,SV85: $i,SV312: $i] :
      ( ( ( ~ ( in @ SV312 @ ( sK1_B @ SV85 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV320 @ SV312 ) )
        = $true )
      | ( ( in @ SV320 @ ( sK1_B @ SV85 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1724]) ).

thf(1769,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
        = $false )
      | ( ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1727]) ).

thf(1770,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
        = $false )
      | ( ( ~ ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 ) )
        = $true )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1728]) ).

thf(1771,plain,
    ! [SV241: $i,SV194: $i,SV73: $i,SV315: $i] :
      ( ( ( in @ SV315 @ SV73 )
        = $true )
      | ( ( in @ SV315 @ SV194 )
        = $true )
      | ( ( in @ SV315 @ SV241 )
        = $false )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1729]) ).

thf(1772,plain,
    ! [SV194: $i,SV241: $i,SV73: $i,SV329: $i] :
      ( ( ( ~ ( in @ SV329 @ SV73 )
          | ( in @ SV329 @ SV241 ) )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1730]) ).

thf(1773,plain,
    ! [SV73: $i,SV241: $i,SV194: $i,SV330: $i] :
      ( ( ( ~ ( in @ SV330 @ SV194 )
          | ( in @ SV330 @ SV241 ) )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1731]) ).

thf(1774,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
        = $false )
      | ( ( ( ( sK25_D @ SV242 @ SV195 @ SV74 )
           != SV74 ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1732]) ).

thf(1775,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
        = $false )
      | ( ( ( ( sK25_D @ SV242 @ SV195 @ SV74 )
           != SV195 ) )
        = $true )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1733]) ).

thf(1776,plain,
    ! [SV243: $i,SV196: $i,SV74: $i,SV316: $i] :
      ( ( ( SV316 = SV74 )
        = $true )
      | ( ( SV316 = SV196 )
        = $true )
      | ( ( in @ SV316 @ SV243 )
        = $false )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1734]) ).

thf(1777,plain,
    ! [SV196: $i,SV243: $i,SV74: $i,SV331: $i] :
      ( ( ( ( SV331 != SV74 )
          | ( in @ SV331 @ SV243 ) )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1735]) ).

thf(1778,plain,
    ! [SV74: $i,SV243: $i,SV196: $i,SV332: $i] :
      ( ( ( ( SV332 != SV196 )
          | ( in @ SV332 @ SV243 ) )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1736]) ).

thf(1779,plain,
    ! [SV75: $i,SV197: $i,SV244: $i] :
      ( ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV244 )
        = $false )
      | ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV75 )
        = $false )
      | ( ( in @ ( sK22_D @ SV244 @ SV197 @ SV75 ) @ SV197 )
        = $false )
      | ( ( SV244
          = ( set_intersection2 @ SV75 @ SV197 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1737]) ).

thf(1780,plain,
    ! [SV245: $i,SV198: $i,SV75: $i,SV317: $i] :
      ( ( ( in @ SV317 @ SV75 )
        = $false )
      | ( ( ~ ( in @ SV317 @ SV198 ) )
        = $true )
      | ( ( in @ SV317 @ SV245 )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1740]) ).

thf(1781,plain,
    ! [SV198: $i,SV75: $i,SV245: $i,SV333: $i] :
      ( ( ( ~ ( in @ SV333 @ SV245 )
          | ( in @ SV333 @ SV75 ) )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1741]) ).

thf(1782,plain,
    ! [SV75: $i,SV198: $i,SV245: $i,SV334: $i] :
      ( ( ( ~ ( in @ SV334 @ SV245 )
          | ( in @ SV334 @ SV198 ) )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1742]) ).

thf(1783,plain,
    ! [SV321: $i,SV76: $i,SV251: $i] :
      ( ( ( in @ ( sK20_C @ SV251 @ SV76 ) @ SV251 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK20_C @ SV251 @ SV76 ) @ SV321 ) @ SV76 )
        = $false )
      | ( ( SV251
          = ( relation_dom @ SV76 ) )
        = $true )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1743]) ).

thf(1784,plain,
    ! [SV252: $i,SV76: $i,SV335: $i,SV322: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV322 @ SV335 ) @ SV76 ) )
        = $true )
      | ( ( in @ SV322 @ SV252 )
        = $true )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1744]) ).

thf(1785,plain,
    ! [SV76: $i,SV252: $i,SV323: $i] :
      ( ( ( in @ SV323 @ SV252 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV323 @ ( sK19_D @ SV323 @ SV252 @ SV76 ) ) @ SV76 )
        = $true )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1745]) ).

thf(1786,plain,
    ! [SV308: $i,SV157: $i,SV203: $i] :
      ( ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV203 )
        = $false )
      | ( ( in @ ( sK17_C @ SV203 @ SV157 ) @ SV308 )
        = $false )
      | ( ( in @ SV308 @ SV157 )
        = $false )
      | ( ( SV203
          = ( union @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1746]) ).

thf(1787,plain,
    ! [SV204: $i,SV158: $i,SV324: $i,SV309: $i] :
      ( ( ( in @ SV309 @ SV324 )
        = $false )
      | ( ( ~ ( in @ SV324 @ SV158 ) )
        = $true )
      | ( ( in @ SV309 @ SV204 )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1747]) ).

thf(1788,plain,
    ! [SV158: $i,SV204: $i,SV310: $i] :
      ( ( ( ~ ( in @ SV310 @ ( sK16_D @ SV310 @ SV204 @ SV158 ) ) )
        = $false )
      | ( ( in @ SV310 @ SV204 )
        = $false )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1748]) ).

thf(1789,plain,
    ! [SV158: $i,SV204: $i,SV310: $i] :
      ( ( ( ~ ( in @ ( sK16_D @ SV310 @ SV204 @ SV158 ) @ SV158 ) )
        = $false )
      | ( ( in @ SV310 @ SV204 )
        = $false )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1748]) ).

thf(1790,plain,
    ! [SV318: $i,SV79: $i,SV311: $i] :
      ( ( ( in @ SV311 @ ( sK35_B @ SV79 ) )
        = $false )
      | ( ( ~ ( subset @ SV318 @ SV311 ) )
        = $true )
      | ( ( in @ SV318 @ ( sK35_B @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1749]) ).

thf(1791,plain,
    ! [SV81: $i,SV215: $i,SV246: $i] :
      ( ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV215 )
        = $false )
      | ( ( in @ ( sK15_D @ SV246 @ SV215 @ SV81 ) @ SV246 )
        = $true )
      | ( ( SV246
          = ( set_difference @ SV81 @ SV215 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1752]) ).

thf(1792,plain,
    ! [SV247: $i,SV216: $i,SV81: $i,SV319: $i] :
      ( ( ( in @ SV319 @ SV81 )
        = $false )
      | ( ( in @ SV319 @ SV216 )
        = $true )
      | ( ( in @ SV319 @ SV247 )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1753]) ).

thf(1793,plain,
    ! [SV216: $i,SV81: $i,SV247: $i,SV336: $i] :
      ( ( ( ~ ( in @ SV336 @ SV247 )
          | ( in @ SV336 @ SV81 ) )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1754]) ).

thf(1794,plain,
    ! [SV81: $i,SV216: $i,SV247: $i,SV337: $i] :
      ( ( ( ~ ( in @ SV337 @ SV247 )
          | ~ ( in @ SV337 @ SV216 ) )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1755]) ).

thf(1795,plain,
    ! [SV325: $i,SV82: $i,SV264: $i] :
      ( ( ( in @ ( sK13_C @ SV264 @ SV82 ) @ SV264 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV325 @ ( sK13_C @ SV264 @ SV82 ) ) @ SV82 )
        = $false )
      | ( ( SV264
          = ( relation_rng @ SV82 ) )
        = $true )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1756]) ).

thf(1796,plain,
    ! [SV265: $i,SV82: $i,SV326: $i,SV338: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV338 @ SV326 ) @ SV82 ) )
        = $true )
      | ( ( in @ SV326 @ SV265 )
        = $true )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1757]) ).

thf(1797,plain,
    ! [SV82: $i,SV265: $i,SV327: $i] :
      ( ( ( in @ SV327 @ SV265 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK12_D @ SV327 @ SV265 @ SV82 ) @ SV327 ) @ SV82 )
        = $true )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1758]) ).

thf(1798,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 )
          | ~ ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1759]) ).

thf(1799,plain,
    ! [SV294: $i,SV266: $i,SV339: $i] :
      ( ( ( ~ ( in @ SV339 @ SV266 )
          | ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV339 ) )
        = $true )
      | ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1760]) ).

thf(1800,plain,
    ! [SV267: $i,SV295: $i,SV340: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK38_D @ SV340 @ SV295 @ SV267 ) @ SV267 )
              | ~ ~ ( in @ SV340 @ ( sK38_D @ SV340 @ SV295 @ SV267 ) ) )
          | ( in @ SV340 @ SV295 ) )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1761]) ).

thf(1801,plain,
    ! [SV267: $i,SV295: $i,SV341: $i] :
      ( ( ( ~ ( in @ SV341 @ SV295 )
          | ! [SY580: $i] :
              ( ~ ( in @ SY580 @ SV267 )
              | ( in @ SV341 @ SY580 ) ) )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1762]) ).

thf(1802,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 ) )
        = $true )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1763]) ).

thf(1803,plain,
    ! [SV84: $i,SV273: $i,SV342: $i] :
      ( ( ( ! [SY581: $i] :
              ( ~ ( in @ ( ordered_pair @ SV342 @ SY581 ) @ SV273 )
              | ( in @ ( ordered_pair @ SY581 @ SV342 ) @ SV84 ) ) )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1765]) ).

thf(1804,plain,
    ! [SV273: $i,SV84: $i,SV343: $i] :
      ( ( ( ! [SY582: $i] :
              ( ~ ( in @ ( ordered_pair @ SY582 @ SV343 ) @ SV84 )
              | ( in @ ( ordered_pair @ SV343 @ SY582 ) @ SV273 ) ) )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1766]) ).

thf(1805,plain,
    ! [SV85: $i,SV284: $i,SV328: $i] :
      ( ( ( subset @ SV328 @ SV284 )
        = $false )
      | ( ( in @ SV328 @ ( sK2_SY267 @ SV284 @ SV85 ) )
        = $true )
      | ( ( ~ ( in @ SV284 @ ( sK1_B @ SV85 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1767]) ).

thf(1806,plain,
    ! [SV320: $i,SV85: $i,SV312: $i] :
      ( ( ( in @ SV312 @ ( sK1_B @ SV85 ) )
        = $false )
      | ( ( ~ ( subset @ SV320 @ SV312 ) )
        = $true )
      | ( ( in @ SV320 @ ( sK1_B @ SV85 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1768]) ).

thf(1807,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV73 )
        = $false )
      | ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
        = $false )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1769]) ).

thf(1808,plain,
    ! [SV73: $i,SV193: $i,SV240: $i] :
      ( ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV193 )
        = $false )
      | ( ( in @ ( sK24_D @ SV240 @ SV193 @ SV73 ) @ SV240 )
        = $false )
      | ( ( SV240
          = ( set_union2 @ SV73 @ SV193 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1770]) ).

thf(1809,plain,
    ! [SV194: $i,SV241: $i,SV73: $i,SV329: $i] :
      ( ( ( ~ ( in @ SV329 @ SV73 ) )
        = $true )
      | ( ( in @ SV329 @ SV241 )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1772]) ).

thf(1810,plain,
    ! [SV73: $i,SV241: $i,SV194: $i,SV330: $i] :
      ( ( ( ~ ( in @ SV330 @ SV194 ) )
        = $true )
      | ( ( in @ SV330 @ SV241 )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1773]) ).

thf(1811,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ( sK25_D @ SV242 @ SV195 @ SV74 )
          = SV74 )
        = $false )
      | ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
        = $false )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1774]) ).

thf(1812,plain,
    ! [SV74: $i,SV195: $i,SV242: $i] :
      ( ( ( ( sK25_D @ SV242 @ SV195 @ SV74 )
          = SV195 )
        = $false )
      | ( ( in @ ( sK25_D @ SV242 @ SV195 @ SV74 ) @ SV242 )
        = $false )
      | ( ( SV242
          = ( unordered_pair @ SV74 @ SV195 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1775]) ).

thf(1813,plain,
    ! [SV196: $i,SV243: $i,SV74: $i,SV331: $i] :
      ( ( ( ( SV331 != SV74 ) )
        = $true )
      | ( ( in @ SV331 @ SV243 )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1777]) ).

thf(1814,plain,
    ! [SV74: $i,SV243: $i,SV196: $i,SV332: $i] :
      ( ( ( ( SV332 != SV196 ) )
        = $true )
      | ( ( in @ SV332 @ SV243 )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1778]) ).

thf(1815,plain,
    ! [SV245: $i,SV75: $i,SV198: $i,SV317: $i] :
      ( ( ( in @ SV317 @ SV198 )
        = $false )
      | ( ( in @ SV317 @ SV75 )
        = $false )
      | ( ( in @ SV317 @ SV245 )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1780]) ).

thf(1816,plain,
    ! [SV198: $i,SV75: $i,SV245: $i,SV333: $i] :
      ( ( ( ~ ( in @ SV333 @ SV245 ) )
        = $true )
      | ( ( in @ SV333 @ SV75 )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1781]) ).

thf(1817,plain,
    ! [SV75: $i,SV198: $i,SV245: $i,SV334: $i] :
      ( ( ( ~ ( in @ SV334 @ SV245 ) )
        = $true )
      | ( ( in @ SV334 @ SV198 )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1782]) ).

thf(1818,plain,
    ! [SV252: $i,SV76: $i,SV335: $i,SV322: $i] :
      ( ( ( in @ ( ordered_pair @ SV322 @ SV335 ) @ SV76 )
        = $false )
      | ( ( in @ SV322 @ SV252 )
        = $true )
      | ( ( SV252
          = ( relation_dom @ SV76 ) )
        = $false )
      | ( ( relation @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1784]) ).

thf(1819,plain,
    ! [SV204: $i,SV309: $i,SV158: $i,SV324: $i] :
      ( ( ( in @ SV324 @ SV158 )
        = $false )
      | ( ( in @ SV309 @ SV324 )
        = $false )
      | ( ( in @ SV309 @ SV204 )
        = $true )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1787]) ).

thf(1820,plain,
    ! [SV158: $i,SV204: $i,SV310: $i] :
      ( ( ( in @ SV310 @ ( sK16_D @ SV310 @ SV204 @ SV158 ) )
        = $true )
      | ( ( in @ SV310 @ SV204 )
        = $false )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1788]) ).

thf(1821,plain,
    ! [SV158: $i,SV204: $i,SV310: $i] :
      ( ( ( in @ ( sK16_D @ SV310 @ SV204 @ SV158 ) @ SV158 )
        = $true )
      | ( ( in @ SV310 @ SV204 )
        = $false )
      | ( ( SV204
          = ( union @ SV158 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1789]) ).

thf(1822,plain,
    ! [SV79: $i,SV311: $i,SV318: $i] :
      ( ( ( subset @ SV318 @ SV311 )
        = $false )
      | ( ( in @ SV311 @ ( sK35_B @ SV79 ) )
        = $false )
      | ( ( in @ SV318 @ ( sK35_B @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1790]) ).

thf(1823,plain,
    ! [SV216: $i,SV81: $i,SV247: $i,SV336: $i] :
      ( ( ( ~ ( in @ SV336 @ SV247 ) )
        = $true )
      | ( ( in @ SV336 @ SV81 )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1793]) ).

thf(1824,plain,
    ! [SV81: $i,SV216: $i,SV247: $i,SV337: $i] :
      ( ( ( ~ ( in @ SV337 @ SV247 ) )
        = $true )
      | ( ( ~ ( in @ SV337 @ SV216 ) )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1794]) ).

thf(1825,plain,
    ! [SV265: $i,SV82: $i,SV326: $i,SV338: $i] :
      ( ( ( in @ ( ordered_pair @ SV338 @ SV326 ) @ SV82 )
        = $false )
      | ( ( in @ SV326 @ SV265 )
        = $true )
      | ( ( SV265
          = ( relation_rng @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1796]) ).

thf(1826,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 ) )
        = $false )
      | ( ( ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1798]) ).

thf(1827,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1798]) ).

thf(1828,plain,
    ! [SV294: $i,SV266: $i,SV339: $i] :
      ( ( ( ~ ( in @ SV339 @ SV266 ) )
        = $true )
      | ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV339 )
        = $true )
      | ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1799]) ).

thf(1829,plain,
    ! [SV267: $i,SV295: $i,SV340: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK38_D @ SV340 @ SV295 @ SV267 ) @ SV267 )
              | ~ ~ ( in @ SV340 @ ( sK38_D @ SV340 @ SV295 @ SV267 ) ) ) )
        = $true )
      | ( ( in @ SV340 @ SV295 )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1800]) ).

thf(1830,plain,
    ! [SV267: $i,SV295: $i,SV341: $i] :
      ( ( ( ~ ( in @ SV341 @ SV295 ) )
        = $true )
      | ( ( ! [SY580: $i] :
              ( ~ ( in @ SY580 @ SV267 )
              | ( in @ SV341 @ SY580 ) ) )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1801]) ).

thf(1831,plain,
    ! [SV84: $i,SV272: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK11_SY272 @ SV272 @ SV84 ) @ ( sK10_C @ SV272 @ SV84 ) ) @ SV84 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_C @ SV272 @ SV84 ) @ ( sK11_SY272 @ SV272 @ SV84 ) ) @ SV272 )
        = $false )
      | ( ( SV272
          = ( relation_inverse @ SV84 ) )
        = $true )
      | ( ( relation @ SV272 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1802]) ).

thf(1832,plain,
    ! [SV84: $i,SV273: $i,SV344: $i,SV342: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV342 @ SV344 ) @ SV273 )
          | ( in @ ( ordered_pair @ SV344 @ SV342 ) @ SV84 ) )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1803]) ).

thf(1833,plain,
    ! [SV273: $i,SV84: $i,SV343: $i,SV345: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV345 @ SV343 ) @ SV84 )
          | ( in @ ( ordered_pair @ SV343 @ SV345 ) @ SV273 ) )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1804]) ).

thf(1834,plain,
    ! [SV328: $i,SV85: $i,SV284: $i] :
      ( ( ( in @ SV284 @ ( sK1_B @ SV85 ) )
        = $false )
      | ( ( in @ SV328 @ ( sK2_SY267 @ SV284 @ SV85 ) )
        = $true )
      | ( ( subset @ SV328 @ SV284 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1805]) ).

thf(1835,plain,
    ! [SV85: $i,SV312: $i,SV320: $i] :
      ( ( ( subset @ SV320 @ SV312 )
        = $false )
      | ( ( in @ SV312 @ ( sK1_B @ SV85 ) )
        = $false )
      | ( ( in @ SV320 @ ( sK1_B @ SV85 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1806]) ).

thf(1836,plain,
    ! [SV194: $i,SV241: $i,SV73: $i,SV329: $i] :
      ( ( ( in @ SV329 @ SV73 )
        = $false )
      | ( ( in @ SV329 @ SV241 )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1809]) ).

thf(1837,plain,
    ! [SV73: $i,SV241: $i,SV194: $i,SV330: $i] :
      ( ( ( in @ SV330 @ SV194 )
        = $false )
      | ( ( in @ SV330 @ SV241 )
        = $true )
      | ( ( SV241
          = ( set_union2 @ SV73 @ SV194 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1810]) ).

thf(1838,plain,
    ! [SV196: $i,SV243: $i,SV74: $i,SV331: $i] :
      ( ( ( SV331 = SV74 )
        = $false )
      | ( ( in @ SV331 @ SV243 )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1813]) ).

thf(1839,plain,
    ! [SV74: $i,SV243: $i,SV196: $i,SV332: $i] :
      ( ( ( SV332 = SV196 )
        = $false )
      | ( ( in @ SV332 @ SV243 )
        = $true )
      | ( ( SV243
          = ( unordered_pair @ SV74 @ SV196 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1814]) ).

thf(1840,plain,
    ! [SV198: $i,SV75: $i,SV245: $i,SV333: $i] :
      ( ( ( in @ SV333 @ SV245 )
        = $false )
      | ( ( in @ SV333 @ SV75 )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1816]) ).

thf(1841,plain,
    ! [SV75: $i,SV198: $i,SV245: $i,SV334: $i] :
      ( ( ( in @ SV334 @ SV245 )
        = $false )
      | ( ( in @ SV334 @ SV198 )
        = $true )
      | ( ( SV245
          = ( set_intersection2 @ SV75 @ SV198 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1817]) ).

thf(1842,plain,
    ! [SV216: $i,SV81: $i,SV247: $i,SV336: $i] :
      ( ( ( in @ SV336 @ SV247 )
        = $false )
      | ( ( in @ SV336 @ SV81 )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1823]) ).

thf(1843,plain,
    ! [SV81: $i,SV216: $i,SV247: $i,SV337: $i] :
      ( ( ( in @ SV337 @ SV247 )
        = $false )
      | ( ( ~ ( in @ SV337 @ SV216 ) )
        = $true )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1824]) ).

thf(1844,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 )
        = $true )
      | ( ( ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1826]) ).

thf(1845,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1827]) ).

thf(1846,plain,
    ! [SV294: $i,SV266: $i,SV339: $i] :
      ( ( ( in @ SV339 @ SV266 )
        = $false )
      | ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV339 )
        = $true )
      | ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1828]) ).

thf(1847,plain,
    ! [SV267: $i,SV295: $i,SV340: $i] :
      ( ( ( ~ ( in @ ( sK38_D @ SV340 @ SV295 @ SV267 ) @ SV267 )
          | ~ ~ ( in @ SV340 @ ( sK38_D @ SV340 @ SV295 @ SV267 ) ) )
        = $false )
      | ( ( in @ SV340 @ SV295 )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1829]) ).

thf(1848,plain,
    ! [SV267: $i,SV295: $i,SV341: $i] :
      ( ( ( in @ SV341 @ SV295 )
        = $false )
      | ( ( ! [SY580: $i] :
              ( ~ ( in @ SY580 @ SV267 )
              | ( in @ SV341 @ SY580 ) ) )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1830]) ).

thf(1849,plain,
    ! [SV84: $i,SV273: $i,SV344: $i,SV342: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV342 @ SV344 ) @ SV273 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV344 @ SV342 ) @ SV84 )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1832]) ).

thf(1850,plain,
    ! [SV273: $i,SV84: $i,SV343: $i,SV345: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV345 @ SV343 ) @ SV84 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV343 @ SV345 ) @ SV273 )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1833]) ).

thf(1851,plain,
    ! [SV81: $i,SV247: $i,SV216: $i,SV337: $i] :
      ( ( ( in @ SV337 @ SV216 )
        = $false )
      | ( ( in @ SV337 @ SV247 )
        = $false )
      | ( ( SV247
          = ( set_difference @ SV81 @ SV216 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1843]) ).

thf(1852,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 )
        = $false )
      | ( ( in @ ( sK40_SY287 @ SV294 @ SV266 ) @ SV266 )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1844]) ).

thf(1853,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) )
        = $false )
      | ( ( ~ ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 ) )
        = $true )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1845]) ).

thf(1854,plain,
    ! [SV267: $i,SV295: $i,SV340: $i] :
      ( ( ( ~ ( in @ ( sK38_D @ SV340 @ SV295 @ SV267 ) @ SV267 ) )
        = $false )
      | ( ( in @ SV340 @ SV295 )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1847]) ).

thf(1855,plain,
    ! [SV267: $i,SV295: $i,SV340: $i] :
      ( ( ( ~ ~ ( in @ SV340 @ ( sK38_D @ SV340 @ SV295 @ SV267 ) ) )
        = $false )
      | ( ( in @ SV340 @ SV295 )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1847]) ).

thf(1856,plain,
    ! [SV295: $i,SV341: $i,SV267: $i,SV346: $i] :
      ( ( ( ~ ( in @ SV346 @ SV267 )
          | ( in @ SV341 @ SV346 ) )
        = $true )
      | ( ( in @ SV341 @ SV295 )
        = $false )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1848]) ).

thf(1857,plain,
    ! [SV84: $i,SV273: $i,SV344: $i,SV342: $i] :
      ( ( ( in @ ( ordered_pair @ SV342 @ SV344 ) @ SV273 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV344 @ SV342 ) @ SV84 )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1849]) ).

thf(1858,plain,
    ! [SV273: $i,SV84: $i,SV343: $i,SV345: $i] :
      ( ( ( in @ ( ordered_pair @ SV345 @ SV343 ) @ SV84 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV343 @ SV345 ) @ SV273 )
        = $true )
      | ( ( SV273
          = ( relation_inverse @ SV84 ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false )
      | ( ( relation @ SV84 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1850]) ).

thf(1859,plain,
    ! [SV266: $i,SV294: $i] :
      ( ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ SV294 )
        = $false )
      | ( ( in @ ( sK39_C @ SV294 @ SV266 ) @ ( sK40_SY287 @ SV294 @ SV266 ) )
        = $false )
      | ( ( SV294
          = ( set_meet @ SV266 ) )
        = $true )
      | ( ( SV266 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1853]) ).

thf(1860,plain,
    ! [SV267: $i,SV295: $i,SV340: $i] :
      ( ( ( in @ ( sK38_D @ SV340 @ SV295 @ SV267 ) @ SV267 )
        = $true )
      | ( ( in @ SV340 @ SV295 )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1854]) ).

thf(1861,plain,
    ! [SV267: $i,SV295: $i,SV340: $i] :
      ( ( ( ~ ( in @ SV340 @ ( sK38_D @ SV340 @ SV295 @ SV267 ) ) )
        = $true )
      | ( ( in @ SV340 @ SV295 )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1855]) ).

thf(1862,plain,
    ! [SV295: $i,SV341: $i,SV267: $i,SV346: $i] :
      ( ( ( ~ ( in @ SV346 @ SV267 ) )
        = $true )
      | ( ( in @ SV341 @ SV346 )
        = $true )
      | ( ( in @ SV341 @ SV295 )
        = $false )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1856]) ).

thf(1863,plain,
    ! [SV267: $i,SV295: $i,SV340: $i] :
      ( ( ( in @ SV340 @ ( sK38_D @ SV340 @ SV295 @ SV267 ) )
        = $false )
      | ( ( in @ SV340 @ SV295 )
        = $true )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1861]) ).

thf(1864,plain,
    ! [SV295: $i,SV341: $i,SV267: $i,SV346: $i] :
      ( ( ( in @ SV346 @ SV267 )
        = $false )
      | ( ( in @ SV341 @ SV346 )
        = $true )
      | ( ( in @ SV341 @ SV295 )
        = $false )
      | ( ( SV295
          = ( set_meet @ SV267 ) )
        = $false )
      | ( ( SV267 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1862]) ).

thf(1865,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[393,1864,1863,1860,1859,1858,1857,1852,1851,1846,1842,1841,1840,1839,1838,1837,1836,1835,1834,1831,1825,1822,1821,1820,1819,1818,1815,1812,1811,1808,1807,1797,1795,1792,1791,1786,1785,1783,1779,1776,1771,1764,1751,1750,1739,1738,1726,1725,1723,1701,1700,1698,1697,1675,1668,1667,1661,1646,1645,1644,1641,1632,1627,1621,1620,1619,1613,1599,1598,1597,1587,1586,1569,1568,1565,1563,1562,1559,1558,1557,1556,1555,1553,1548,1535,1534,1533,1531,1521,1485,1484,1471,1463,1456,1455,1450,1425,1422,1416,1412,1411,1409,1405,1400,1385,1372,1359,1358,1357,1356,1350,1349,1345,1344,1335,1334,1328,1327,1314,1308,1307,1306,1302,1301,1295,1294,1272,1271,1270,1267,1266,1264,1259,1215,1198,1197,1196,1192,1176,1173,1172,1167,1166,1162,1097,1087,1073,1070,1069,1066,1065,1064,1061,1056,1055,1049,1048,1047,1024,1021,1020,966,965,963,962,957,954,951,949,947,943,939,937,933,916,915,912,911,904,844,841,838,836,835,834,815,807,804,801,719,716,712,711,704,699,692,691,690,683,670,626,618,617,615,614,597,591,561,560,559,558,554,494,403]) ).

thf(1866,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[389]) ).

thf(1867,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)],[388]) ).

thf(1868,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)],[387]) ).

thf(1869,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[285]) ).

thf(1870,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)],[386]) ).

thf(1871,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[283]) ).

thf(1872,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)],[385]) ).

thf(1873,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)],[384]) ).

thf(1874,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)],[383]) ).

thf(1875,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[382]) ).

thf(1876,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK40_SY287 @ B @ A ) @ A )
                    & ~ ( in @ ( sK39_C @ B @ A ) @ ( sK40_SY287 @ B @ A ) ) )
                  | ~ ( in @ ( sK39_C @ B @ A ) @ B ) )
                & ( ! [SY288: $i] :
                      ( ~ ( in @ SY288 @ A )
                      | ( in @ ( sK39_C @ B @ A ) @ SY288 ) )
                  | ( in @ ( sK39_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK38_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK38_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)],[381]) ).

thf(1877,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK37_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[380]) ).

thf(1878,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)],[379]) ).

thf(1879,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[275]) ).

thf(1880,plain,
    ( ( ( empty @ empty_set )
      & ( relation @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[274]) ).

thf(1881,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_dom @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[378]) ).

thf(1882,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ~ ( relation @ A )
          | ~ ( empty @ ( relation_rng @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[377]) ).

thf(1883,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[271]) ).

thf(1884,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[270]) ).

thf(1885,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[269]) ).

thf(1886,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[268]) ).

thf(1887,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[376]) ).

thf(1888,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[375]) ).

thf(1889,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[374]) ).

thf(1890,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[373]) ).

thf(1891,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)],[372]) ).

thf(1892,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[371]) ).

thf(1893,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)],[370]) ).

thf(1894,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[369]) ).

thf(1895,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK36_C @ B @ A ) @ A )
            & ~ ( in @ ( sK36_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[368]) ).

thf(1896,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)],[367]) ).

thf(1897,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)],[366]) ).

thf(1898,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[365]) ).

thf(1899,plain,
    ( ( ! [A: $i] :
          ( ! [SY283: $i] :
              ( ~ ( subset @ SY283 @ ( sK35_B @ A ) )
              | ( are_equipotent @ SY283 @ ( sK35_B @ A ) )
              | ( in @ SY283 @ ( sK35_B @ A ) ) )
          & ! [SY284: $i] :
              ( ~ ( in @ SY284 @ ( sK35_B @ A ) )
              | ( in @ ( powerset @ SY284 ) @ ( sK35_B @ A ) ) )
          & ! [SY285: $i,SY286: $i] :
              ( ~ ( in @ SY285 @ ( sK35_B @ A ) )
              | ~ ( subset @ SY286 @ SY285 )
              | ( in @ SY286 @ ( sK35_B @ A ) ) )
          & ( in @ A @ ( sK35_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[364]) ).

thf(1900,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[254]) ).

thf(1901,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[363]) ).

thf(1902,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[362]) ).

thf(1903,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)],[361]) ).

thf(1904,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[360]) ).

thf(1905,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[359]) ).

thf(1906,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[358]) ).

thf(1907,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[357]) ).

thf(1908,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[246]) ).

thf(1909,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)],[356]) ).

thf(1910,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)],[355]) ).

thf(1911,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[243]) ).

thf(1912,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK34_C @ B @ A ) @ A )
            & ( in @ ( sK34_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[354]) ).

thf(1913,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[241]) ).

thf(1914,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_dom @ ( relation_composition @ A @ B ) ) @ ( relation_dom @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[353]) ).

thf(1915,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ~ ( relation @ B )
              | ( subset @ ( relation_rng @ ( relation_composition @ A @ B ) ) @ ( relation_rng @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[352]) ).

thf(1916,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[351]) ).

thf(1917,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)],[350]) ).

thf(1918,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[349]) ).

thf(1919,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)],[348]) ).

thf(1920,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[234]) ).

thf(1921,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK33_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)],[347]) ).

thf(1922,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( in @ ( ordered_pair @ ( sK31_B @ A ) @ ( sK32_SY282 @ A ) ) @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[346]) ).

thf(1923,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[345]) ).

thf(1924,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[344]) ).

thf(1925,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)],[343]) ).

thf(1926,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[228]) ).

thf(1927,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[342]) ).

thf(1928,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[226]) ).

thf(1929,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)],[341]) ).

thf(1930,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[340]) ).

thf(1931,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[339]) ).

thf(1932,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[338]) ).

thf(1933,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[221]) ).

thf(1934,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[337]) ).

thf(1935,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[336]) ).

thf(1936,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( relation @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[335]) ).

thf(1937,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[217]) ).

thf(1938,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[216]) ).

thf(1939,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)],[334]) ).

thf(1940,plain,
    ( ( ! [A: $i] :
          ( ( ! [SY280: $i,SY281: $i] :
                ( ( sK30_B @ A )
               != ( ordered_pair @ SY280 @ SY281 ) )
            & ( in @ ( sK30_B @ A ) @ A ) )
          | ( relation @ A ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ( B
                = ( ordered_pair @ ( sK28_C @ B @ A ) @ ( sK29_SY279 @ B @ A ) ) )
              | ~ ( in @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[333]) ).

thf(1941,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK27_C @ B @ A )
               != A )
              | ~ ( in @ ( sK27_C @ B @ A ) @ B ) )
            & ( ( ( sK27_C @ B @ A )
                = A )
              | ( in @ ( sK27_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)],[332]) ).

thf(1942,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK26_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK26_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK26_C @ B @ A ) @ B )
              | ( subset @ ( sK26_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)],[331]) ).

thf(1943,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)],[330]) ).

thf(1944,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK25_D @ C @ B @ A ) @ C )
                  | ( ( sK25_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK25_D @ C @ B @ A ) @ C )
                  | ( ( sK25_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK25_D @ C @ B @ A ) @ C )
                  | ( ( sK25_D @ C @ B @ A )
                    = A )
                  | ( ( sK25_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)],[329]) ).

thf(1945,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK24_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK24_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK24_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK24_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK24_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK24_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK24_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)],[328]) ).

thf(1946,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK23_C @ B @ A ) @ A )
            & ~ ( in @ ( sK23_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)],[327]) ).

thf(1947,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK22_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK22_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK22_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK22_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK22_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK22_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK22_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)],[326]) ).

thf(1948,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY277: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK20_C @ B @ A ) @ SY277 ) @ A )
                    | ~ ( in @ ( sK20_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK20_C @ B @ A ) @ ( sK21_SY278 @ B @ A ) ) @ A )
                    | ( in @ ( sK20_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 @ ( sK19_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[325]) ).

thf(1949,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY275: $i] :
                  ( ~ ( in @ ( sK17_C @ B @ A ) @ SY275 )
                  | ~ ( in @ SY275 @ A ) )
              | ~ ( in @ ( sK17_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK17_C @ B @ A ) @ ( sK18_SY276 @ B @ A ) )
                & ( in @ ( sK18_SY276 @ 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)],[324]) ).

thf(1950,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)],[323]) ).

thf(1951,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY273: $i] :
                        ~ ( in @ ( ordered_pair @ SY273 @ ( sK13_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK13_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK14_SY274 @ B @ A ) @ ( sK13_C @ B @ A ) ) @ A )
                    | ( in @ ( sK13_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 @ ( sK12_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[322]) ).

thf(1952,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[321]) ).

thf(1953,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ( ( ~ ( in @ ( ordered_pair @ ( sK10_C @ B @ A ) @ ( sK11_SY272 @ B @ A ) ) @ B )
                    | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ B @ A ) @ ( sK10_C @ B @ A ) ) @ A ) )
                  & ( ( in @ ( ordered_pair @ ( sK10_C @ B @ A ) @ ( sK11_SY272 @ B @ A ) ) @ B )
                    | ( in @ ( ordered_pair @ ( sK11_SY272 @ B @ A ) @ ( sK10_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)],[320]) ).

thf(1954,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)],[319]) ).

thf(1955,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( relation @ ( relation_inverse @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[318]) ).

thf(1956,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( relation_composition @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[317]) ).

thf(1957,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[197]) ).

thf(1958,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[196]) ).

thf(1959,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[316]) ).

thf(1960,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[194]) ).

thf(1961,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[315]) ).

thf(1962,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( unordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[192]) ).

thf(1963,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[314]) ).

thf(1964,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( empty @ A )
          | ( empty @ B )
          | ~ ( empty @ ( cartesian_product2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[313]) ).

thf(1965,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[312]) ).

thf(1966,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[311]) ).

thf(1967,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_inverse @ ( relation_inverse @ A ) )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[310]) ).

thf(1968,plain,
    ( ( ( empty @ sK9_A )
      & ( relation @ sK9_A ) )
    = $true ),
    inference(copy,[status(thm)],[309]) ).

thf(1969,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ( ( element @ ( sK8_B @ A ) @ ( powerset @ A ) )
            & ~ ( empty @ ( sK8_B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[308]) ).

thf(1970,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(copy,[status(thm)],[307]) ).

thf(1971,plain,
    ( ( ~ ( empty @ sK6_A )
      & ( relation @ sK6_A ) )
    = $true ),
    inference(copy,[status(thm)],[306]) ).

thf(1972,plain,
    ( ( ! [A: $i] :
          ( ( element @ ( sK5_B @ A ) @ ( powerset @ A ) )
          & ( empty @ ( sK5_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[305]) ).

thf(1973,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[304]) ).

thf(1974,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[303]) ).

thf(1975,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[302]) ).

thf(1976,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[301]) ).

thf(1977,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[300]) ).

thf(1978,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK3_C @ B @ A ) @ A )
              | ~ ( in @ ( sK3_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK3_C @ B @ A ) @ A )
              | ( in @ ( sK3_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[299]) ).

thf(1979,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)],[298]) ).

thf(1980,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[297]) ).

thf(1981,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[296]) ).

thf(1982,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[295]) ).

thf(1983,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[294]) ).

thf(1984,plain,
    ( ( ! [A: $i] :
          ( ! [SY265: $i] :
              ( ~ ( subset @ SY265 @ ( sK1_B @ A ) )
              | ( are_equipotent @ SY265 @ ( sK1_B @ A ) )
              | ( in @ SY265 @ ( sK1_B @ A ) ) )
          & ! [SY266: $i] :
              ( ( ! [SY271: $i] :
                    ( ~ ( subset @ SY271 @ SY266 )
                    | ( in @ SY271 @ ( sK2_SY267 @ SY266 @ A ) ) )
                & ( in @ ( sK2_SY267 @ SY266 @ A ) @ ( sK1_B @ A ) ) )
              | ~ ( in @ SY266 @ ( sK1_B @ A ) ) )
          & ! [SY269: $i,SY270: $i] :
              ( ~ ( in @ SY269 @ ( sK1_B @ A ) )
              | ~ ( subset @ SY270 @ SY269 )
              | ( in @ SY270 @ ( sK1_B @ A ) ) )
          & ( in @ A @ ( sK1_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[293]) ).

thf(1985,plain,
    ( ( ( ( relation_rng @ empty_set )
       != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[292]) ).

thf(1986,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)],[1910]) ).

thf(1987,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY272 @ SX1 @ SX0 ) ) @ SX1 )
                            | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SX1 @ SX0 ) @ ( sK10_C @ SX1 @ SX0 ) ) @ SX0 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY272 @ SX1 @ SX0 ) ) @ SX1 )
                            | ( in @ ( ordered_pair @ ( sK11_SY272 @ SX1 @ SX0 ) @ ( sK10_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)],[1953]) ).

thf(1988,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK33_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)],[1921]) ).

thf(1989,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1978]) ).

thf(1990,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)],[1903]) ).

thf(1991,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)],[1868]) ).

thf(1992,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)],[1929]) ).

thf(1993,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK24_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)],[1945]) ).

thf(1994,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)],[1874]) ).

thf(1995,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)],[1954]) ).

thf(1996,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK34_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)],[1912]) ).

thf(1997,plain,
    ( ( ~ ( ~ ( empty @ sK9_A )
          | ~ ( relation @ sK9_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1968]) ).

thf(1998,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK35_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK35_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK35_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( in @ SX1 @ ( sK35_B @ SX0 ) )
                        | ( in @ ( powerset @ SX1 ) @ ( sK35_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK35_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK35_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK35_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1899]) ).

thf(1999,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)],[1870]) ).

thf(2000,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)],[1909]) ).

thf(2001,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK37_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1877]) ).

thf(2002,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK1_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK1_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK1_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( ~ ! [SX2: $i] :
                                  ( ~ ( subset @ SX2 @ SX1 )
                                  | ( in @ SX2 @ ( sK2_SY267 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK2_SY267 @ SX1 @ SX0 ) @ ( sK1_B @ SX0 ) ) )
                        | ~ ( in @ SX1 @ ( sK1_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK1_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK1_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK1_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1984]) ).

thf(2003,plain,
    ( ( ~ ( ~ ( empty @ empty_set )
          | ~ ( relation @ empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1880]) ).

thf(2004,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK26_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)],[1942]) ).

thf(2005,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)],[1943]) ).

thf(2006,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)],[1925]) ).

thf(2007,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                          ( ( sK30_B @ SX0 )
                         != ( ordered_pair @ SX1 @ SX2 ) )
                    | ~ ( in @ ( sK30_B @ SX0 ) @ SX0 ) )
                | ( relation @ SX0 ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ! [SX1: $i] :
                    ( ( SX1
                      = ( ordered_pair @ ( sK28_C @ SX1 @ SX0 ) @ ( sK29_SY279 @ SX1 @ SX0 ) ) )
                    | ~ ( in @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1940]) ).

thf(2008,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)],[1878]) ).

thf(2009,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)],[1939]) ).

thf(2010,plain,
    ( ( ~ ( ~ ~ ( empty @ sK6_A )
          | ~ ( relation @ sK6_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1971]) ).

thf(2011,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)],[1979]) ).

thf(2012,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK20_C @ SX1 @ SX0 ) @ SX2 ) @ SX0 )
                            | ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SX1 @ SX0 ) @ ( sK21_SY278 @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK20_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 @ ( sK19_D @ SX2 @ SX1 @ SX0 ) ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1948]) ).

thf(2013,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)],[1950]) ).

thf(2014,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)],[1872]) ).

thf(2015,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)],[1891]) ).

thf(2016,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK22_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK22_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)],[1947]) ).

thf(2017,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ SX2 @ ( sK13_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SX1 @ SX0 ) @ ( sK13_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK13_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 @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1951]) ).

thf(2018,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_SY276 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK18_SY276 @ 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)],[1949]) ).

thf(2019,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ( element @ ( sK5_B @ SX0 ) @ ( powerset @ SX0 ) )
            | ~ ( empty @ ( sK5_B @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1972]) ).

thf(2020,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK36_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK36_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1895]) ).

thf(2021,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)],[1873]) ).

thf(2022,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK23_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)],[1946]) ).

thf(2023,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)],[1867]) ).

thf(2024,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK25_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK25_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK25_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK25_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK25_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK25_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)],[1944]) ).

thf(2025,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                                  | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                              | ~ ( ! [SX2: $i] :
                                      ( ~ ( in @ SX2 @ SX0 )
                                      | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                                  | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ~ ( ~ ! [SX2: $i] :
                                    ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                        | ~ ~ ( in @ SX2 @ ( sK38_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)],[1876]) ).

thf(2026,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK27_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK27_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK27_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)],[1941]) ).

thf(2027,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)],[1896]) ).

thf(2028,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ~ ( ~ ( element @ ( sK8_B @ SX0 ) @ ( powerset @ SX0 ) )
              | ~ ~ ( empty @ ( sK8_B @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1969]) ).

thf(2029,plain,
    ! [SV347: $i] :
      ( ( ( ( singleton @ SV347 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1866]) ).

thf(2030,plain,
    ! [SV348: $i] :
      ( ( subset @ empty_set @ SV348 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1871]) ).

thf(2031,plain,
    ! [SV349: $i] :
      ( ( ~ ( subset @ SV349 @ empty_set )
        | ( SV349 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1875]) ).

thf(2032,plain,
    ! [SV350: $i] :
      ( ( ( empty @ SV350 )
        | ~ ( relation @ SV350 )
        | ~ ( empty @ ( relation_dom @ SV350 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1881]) ).

thf(2033,plain,
    ! [SV351: $i] :
      ( ( ( empty @ SV351 )
        | ~ ( relation @ SV351 )
        | ~ ( empty @ ( relation_rng @ SV351 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1882]) ).

thf(2034,plain,
    ! [SV352: $i] :
      ( ( ( set_union2 @ SV352 @ empty_set )
        = SV352 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1883]) ).

thf(2035,plain,
    ! [SV353: $i] :
      ( ( ( set_intersection2 @ SV353 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1884]) ).

thf(2036,plain,
    ! [SV354: $i] :
      ( ( ( set_difference @ SV354 @ empty_set )
        = SV354 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1885]) ).

thf(2037,plain,
    ! [SV355: $i] :
      ( ( ( set_difference @ empty_set @ SV355 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1886]) ).

thf(2038,plain,
    ! [SV356: $i] :
      ( ( ~ ( empty @ SV356 )
        | ( SV356 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1887]) ).

thf(2039,plain,
    ! [SV357: $i] :
      ( ( ! [SY583: $i] :
            ( ~ ( in @ SV357 @ SY583 )
            | ( ( set_union2 @ ( singleton @ SV357 ) @ SY583 )
              = SY583 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1888]) ).

thf(2040,plain,
    ! [SV358: $i] :
      ( ( ! [SY584: $i] :
            ( ~ ( disjoint @ ( singleton @ SV358 ) @ SY584 )
            | ~ ( in @ SV358 @ SY584 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1889]) ).

thf(2041,plain,
    ! [SV359: $i] :
      ( ( ! [SY585: $i] :
            ( ( in @ SV359 @ SY585 )
            | ( disjoint @ ( singleton @ SV359 ) @ SY585 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1890]) ).

thf(2042,plain,
    ! [SV360: $i] :
      ( ( ! [SY586: $i] :
            ( ~ ( element @ SY586 @ ( powerset @ SV360 ) )
            | ! [SY587: $i] :
                ( ~ ( in @ SY587 @ SY586 )
                | ( in @ SY587 @ SV360 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1892]) ).

thf(2043,plain,
    ! [SV361: $i] :
      ( ( ! [SY588: $i] :
            ( ~ ( subset @ SV361 @ SY588 )
            | ! [SY589: $i] :
                ( ( in @ SY589 @ SV361 )
                | ( subset @ SV361 @ ( set_difference @ SY588 @ ( singleton @ SY589 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1893]) ).

thf(2044,plain,
    ! [SV362: $i] :
      ( ( ! [SY590: $i] :
            ( ~ ( in @ SV362 @ SY590 )
            | ( subset @ SV362 @ ( union @ SY590 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1894]) ).

thf(2045,plain,
    ! [SV363: $i] :
      ( ( ! [SY591: $i,SY592: $i,SY593: $i] :
            ( ~ ( subset @ SV363 @ SY591 )
            | ~ ( subset @ SY592 @ SY593 )
            | ( subset @ ( cartesian_product2 @ SV363 @ SY592 ) @ ( cartesian_product2 @ SY591 @ SY593 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1897]) ).

thf(2046,plain,
    ! [SV364: $i] :
      ( ( ! [SY594: $i] :
            ( ~ ( subset @ SV364 @ SY594 )
            | ( ( set_union2 @ SV364 @ SY594 )
              = SY594 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1898]) ).

thf(2047,plain,
    ! [SV365: $i] :
      ( ( ! [SY595: $i] : ( subset @ ( set_intersection2 @ SV365 @ SY595 ) @ SV365 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1900]) ).

thf(2048,plain,
    ! [SV366: $i] :
      ( ( ! [SY596: $i,SY597: $i] :
            ( ~ ( subset @ SV366 @ SY596 )
            | ~ ( subset @ SV366 @ SY597 )
            | ( subset @ SV366 @ ( set_intersection2 @ SY596 @ SY597 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1901]) ).

thf(2049,plain,
    ! [SV367: $i] :
      ( ( ! [SY598: $i,SY599: $i] :
            ( ~ ( subset @ SV367 @ SY598 )
            | ~ ( subset @ SY598 @ SY599 )
            | ( subset @ SV367 @ SY599 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1902]) ).

thf(2050,plain,
    ! [SV368: $i] :
      ( ( ~ ( relation @ SV368 )
        | ( subset @ SV368 @ ( cartesian_product2 @ ( relation_dom @ SV368 ) @ ( relation_rng @ SV368 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1904]) ).

thf(2051,plain,
    ! [SV369: $i] :
      ( ( ! [SY600: $i] :
            ( ~ ( subset @ SV369 @ SY600 )
            | ! [SY601: $i] : ( subset @ ( set_intersection2 @ SV369 @ SY601 ) @ ( set_intersection2 @ SY600 @ SY601 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1905]) ).

thf(2052,plain,
    ! [SV370: $i] :
      ( ( ! [SY602: $i] :
            ( ~ ( subset @ SV370 @ SY602 )
            | ( ( set_intersection2 @ SV370 @ SY602 )
              = SV370 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1906]) ).

thf(2053,plain,
    ! [SV371: $i] :
      ( ( ! [SY603: $i] :
            ( ~ ( subset @ SV371 @ SY603 )
            | ! [SY604: $i] : ( subset @ ( set_difference @ SV371 @ SY604 ) @ ( set_difference @ SY603 @ SY604 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1907]) ).

thf(2054,plain,
    ! [SV372: $i] :
      ( ( ! [SY605: $i] : ( subset @ ( set_difference @ SV372 @ SY605 ) @ SV372 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1908]) ).

thf(2055,plain,
    ! [SV373: $i] :
      ( ( ! [SY606: $i] :
            ( ( set_union2 @ SV373 @ ( set_difference @ SY606 @ SV373 ) )
            = ( set_union2 @ SV373 @ SY606 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1911]) ).

thf(2056,plain,
    ! [SV374: $i] :
      ( ( ! [SY607: $i] :
            ( ( set_difference @ ( set_union2 @ SV374 @ SY607 ) @ SY607 )
            = ( set_difference @ SV374 @ SY607 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1913]) ).

thf(2057,plain,
    ! [SV375: $i] :
      ( ( ~ ( relation @ SV375 )
        | ! [SY608: $i] :
            ( ~ ( relation @ SY608 )
            | ( subset @ ( relation_dom @ ( relation_composition @ SV375 @ SY608 ) ) @ ( relation_dom @ SV375 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1914]) ).

thf(2058,plain,
    ! [SV376: $i] :
      ( ( ~ ( relation @ SV376 )
        | ! [SY609: $i] :
            ( ~ ( relation @ SY609 )
            | ( subset @ ( relation_rng @ ( relation_composition @ SV376 @ SY609 ) ) @ ( relation_rng @ SY609 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1915]) ).

thf(2059,plain,
    ! [SV377: $i] :
      ( ( ! [SY610: $i] :
            ( ~ ( subset @ SV377 @ SY610 )
            | ( SY610
              = ( set_union2 @ SV377 @ ( set_difference @ SY610 @ SV377 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1916]) ).

thf(2060,plain,
    ! [SV378: $i] :
      ( ( ~ ( relation @ SV378 )
        | ! [SY611: $i] :
            ( ~ ( relation @ SY611 )
            | ~ ( subset @ ( relation_rng @ SV378 ) @ ( relation_dom @ SY611 ) )
            | ( ( relation_dom @ ( relation_composition @ SV378 @ SY611 ) )
              = ( relation_dom @ SV378 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1917]) ).

thf(2061,plain,
    ! [SV379: $i] :
      ( ( ! [SY612: $i] :
            ( ~ ( in @ SV379 @ SY612 )
            | ( ( set_union2 @ ( singleton @ SV379 ) @ SY612 )
              = SY612 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1918]) ).

thf(2062,plain,
    ! [SV380: $i] :
      ( ( ~ ( relation @ SV380 )
        | ! [SY613: $i] :
            ( ~ ( relation @ SY613 )
            | ~ ( subset @ ( relation_dom @ SV380 ) @ ( relation_rng @ SY613 ) )
            | ( ( relation_rng @ ( relation_composition @ SY613 @ SV380 ) )
              = ( relation_rng @ SV380 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1919]) ).

thf(2063,plain,
    ! [SV381: $i] :
      ( ( ! [SY614: $i] :
            ( ( set_difference @ SV381 @ ( set_difference @ SV381 @ SY614 ) )
            = ( set_intersection2 @ SV381 @ SY614 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1920]) ).

thf(2064,plain,
    ! [SV382: $i] :
      ( ( ~ ( relation @ SV382 )
        | ( in @ ( ordered_pair @ ( sK31_B @ SV382 ) @ ( sK32_SY282 @ SV382 ) ) @ SV382 )
        | ( SV382 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1922]) ).

thf(2065,plain,
    ! [SV383: $i] :
      ( ( ! [SY615: $i] :
            ( ~ ( proper_subset @ SY615 @ SV383 )
            | ~ ( subset @ SV383 @ SY615 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1923]) ).

thf(2066,plain,
    ! [SV384: $i] :
      ( ( ! [SY616: $i,SY617: $i] :
            ( ~ ( disjoint @ SY616 @ SY617 )
            | ~ ( subset @ SV384 @ SY616 )
            | ( disjoint @ SV384 @ SY617 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1924]) ).

thf(2067,plain,
    ! [SV385: $i] :
      ( ( ( unordered_pair @ SV385 @ SV385 )
        = ( singleton @ SV385 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1926]) ).

thf(2068,plain,
    ! [SV386: $i] :
      ( ( ! [SY618: $i] :
            ( ~ ( subset @ ( singleton @ SV386 ) @ ( singleton @ SY618 ) )
            | ( SV386 = SY618 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1927]) ).

thf(2069,plain,
    ! [SV387: $i] :
      ( ( ! [SY619: $i] : ( subset @ SV387 @ ( set_union2 @ SV387 @ SY619 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1928]) ).

thf(2070,plain,
    ! [SV388: $i] :
      ( ( ! [SY620: $i,SY621: $i] :
            ( ~ ( subset @ SV388 @ SY620 )
            | ~ ( subset @ SY621 @ SY620 )
            | ( subset @ ( set_union2 @ SV388 @ SY621 ) @ SY620 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1930]) ).

thf(2071,plain,
    ! [SV389: $i] :
      ( ( ! [SY622: $i] :
            ( ! [SY623: $i] :
                ( ( singleton @ SV389 )
               != ( unordered_pair @ SY622 @ SY623 ) )
            | ( SV389 = SY622 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1931]) ).

thf(2072,plain,
    ! [SV390: $i] :
      ( ( ! [SY624: $i] :
            ( ~ ( in @ SV390 @ SY624 )
            | ( subset @ SV390 @ ( union @ SY624 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1932]) ).

thf(2073,plain,
    ! [SV391: $i] :
      ( ( ( union @ ( powerset @ SV391 ) )
        = SV391 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1933]) ).

thf(2074,plain,
    ! [SV392: $i] :
      ( ( ! [SY625: $i,SY626: $i] :
            ( ( ( singleton @ SV392 )
             != ( unordered_pair @ SY625 @ SY626 ) )
            | ( SY625 = SY626 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1934]) ).

thf(2075,plain,
    ! [SV393: $i] :
      ( ( ! [SY627: $i] :
            ( ~ ( in @ SV393 @ SY627 )
            | ~ ( in @ SY627 @ SV393 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1935]) ).

thf(2076,plain,
    ! [SV394: $i] :
      ( ( ~ ( empty @ SV394 )
        | ( relation @ SV394 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1936]) ).

thf(2077,plain,
    ! [SV395: $i] :
      ( ( ! [SY628: $i] :
            ( ( set_union2 @ SV395 @ SY628 )
            = ( set_union2 @ SY628 @ SV395 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1937]) ).

thf(2078,plain,
    ! [SV396: $i] :
      ( ( ! [SY629: $i] :
            ( ( set_intersection2 @ SV396 @ SY629 )
            = ( set_intersection2 @ SY629 @ SV396 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1938]) ).

thf(2079,plain,
    ! [SV397: $i] :
      ( ( ~ ( relation @ SV397 )
        | ( ( relation_field @ SV397 )
          = ( set_union2 @ ( relation_dom @ SV397 ) @ ( relation_rng @ SV397 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1952]) ).

thf(2080,plain,
    ! [SV398: $i] :
      ( ( ~ ( relation @ SV398 )
        | ( relation @ ( relation_inverse @ SV398 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1955]) ).

thf(2081,plain,
    ! [SV399: $i] :
      ( ( ! [SY630: $i] :
            ( ~ ( relation @ SV399 )
            | ~ ( relation @ SY630 )
            | ( relation @ ( relation_composition @ SV399 @ SY630 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1956]) ).

thf(2082,plain,
    ! [SV400: $i] :
      ( ( ~ ( empty @ ( powerset @ SV400 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1957]) ).

thf(2083,plain,
    ! [SV401: $i] :
      ( ( ! [SY631: $i] :
            ~ ( empty @ ( ordered_pair @ SV401 @ SY631 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1958]) ).

thf(2084,plain,
    ! [SV402: $i] :
      ( ( ! [SY632: $i] :
            ( ~ ( relation @ SV402 )
            | ~ ( relation @ SY632 )
            | ( relation @ ( set_union2 @ SV402 @ SY632 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1959]) ).

thf(2085,plain,
    ! [SV403: $i] :
      ( ( ~ ( empty @ ( singleton @ SV403 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1960]) ).

thf(2086,plain,
    ! [SV404: $i] :
      ( ( ( empty @ SV404 )
        | ! [SY633: $i] :
            ~ ( empty @ ( set_union2 @ SV404 @ SY633 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1961]) ).

thf(2087,plain,
    ! [SV405: $i] :
      ( ( ! [SY634: $i] :
            ~ ( empty @ ( unordered_pair @ SV405 @ SY634 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1962]) ).

thf(2088,plain,
    ! [SV406: $i] :
      ( ( ( empty @ SV406 )
        | ! [SY635: $i] :
            ~ ( empty @ ( set_union2 @ SY635 @ SV406 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1963]) ).

thf(2089,plain,
    ! [SV407: $i] :
      ( ( ! [SY636: $i] :
            ( ( empty @ SV407 )
            | ( empty @ SY636 )
            | ~ ( empty @ ( cartesian_product2 @ SV407 @ SY636 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1964]) ).

thf(2090,plain,
    ! [SV408: $i] :
      ( ( ( set_union2 @ SV408 @ SV408 )
        = SV408 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1965]) ).

thf(2091,plain,
    ! [SV409: $i] :
      ( ( ( set_intersection2 @ SV409 @ SV409 )
        = SV409 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1966]) ).

thf(2092,plain,
    ! [SV410: $i] :
      ( ( ~ ( relation @ SV410 )
        | ( ( relation_inverse @ ( relation_inverse @ SV410 ) )
          = SV410 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1967]) ).

thf(2093,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1973]) ).

thf(2094,plain,
    ! [SV411: $i] :
      ( ( subset @ SV411 @ SV411 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1974]) ).

thf(2095,plain,
    ! [SV412: $i] :
      ( ( ! [SY637: $i] :
            ( ~ ( disjoint @ SV412 @ SY637 )
            | ( disjoint @ SY637 @ SV412 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1975]) ).

thf(2096,plain,
    ! [SV413: $i] :
      ( ( ! [SY638: $i] :
            ( ~ ( in @ SV413 @ SY638 )
            | ( element @ SV413 @ SY638 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1976]) ).

thf(2097,plain,
    ! [SV414: $i] :
      ( ( ! [SY639: $i] :
            ( ~ ( element @ SV414 @ SY639 )
            | ( empty @ SY639 )
            | ( in @ SV414 @ SY639 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1977]) ).

thf(2098,plain,
    ! [SV415: $i] :
      ( ( ! [SY640: $i,SY641: $i] :
            ( ~ ( element @ SY640 @ ( powerset @ SY641 ) )
            | ~ ( in @ SV415 @ SY640 )
            | ( element @ SV415 @ SY641 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1980]) ).

thf(2099,plain,
    ! [SV416: $i] :
      ( ( ! [SY642: $i,SY643: $i] :
            ( ~ ( element @ SY642 @ ( powerset @ SY643 ) )
            | ~ ( in @ SV416 @ SY642 )
            | ~ ( empty @ SY643 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1981]) ).

thf(2100,plain,
    ! [SV417: $i] :
      ( ( ! [SY644: $i] :
            ( ~ ( empty @ SY644 )
            | ~ ( in @ SV417 @ SY644 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1982]) ).

thf(2101,plain,
    ! [SV418: $i] :
      ( ( ! [SY645: $i] :
            ( ( SV418 = SY645 )
            | ~ ( empty @ SV418 )
            | ~ ( empty @ SY645 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1983]) ).

thf(2102,plain,
    ( ( ( relation_rng @ empty_set )
      = empty_set )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1985]) ).

thf(2103,plain,
    ! [SV419: $i] :
      ( ( ~ ( ~ ! [SY646: $i,SY647: $i] :
                  ( ~ ( in @ SV419 @ SY647 )
                  | ~ ( in @ SY646 @ SY647 )
                  | ( subset @ ( unordered_pair @ SV419 @ SY646 ) @ SY647 ) )
            | ~ ~ ( ~ ! [SY648: $i,SY649: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV419 @ SY648 ) @ SY649 )
                        | ( in @ SV419 @ SY649 ) )
                  | ~ ! [SY650: $i,SY651: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV419 @ SY650 ) @ SY651 )
                        | ( in @ SY650 @ SY651 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1986]) ).

thf(2104,plain,
    ! [SV420: $i] :
      ( ( ~ ( relation @ SV420 )
        | ~ ( ~ ! [SY652: $i] :
                  ( ~ ( relation @ SY652 )
                  | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                          | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                          | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) ) )
                  | ( SY652
                    = ( relation_inverse @ SV420 ) ) )
            | ~ ! [SY653: $i] :
                  ( ~ ( relation @ SY653 )
                  | ( SY653
                   != ( relation_inverse @ SV420 ) )
                  | ~ ( ~ ! [SY654: $i,SY655: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY654 @ SY655 ) @ SY653 )
                            | ( in @ ( ordered_pair @ SY655 @ SY654 ) @ SV420 ) )
                      | ~ ! [SY656: $i,SY657: $i] :
                            ( ~ ( in @ ( ordered_pair @ SY657 @ SY656 ) @ SV420 )
                            | ( in @ ( ordered_pair @ SY656 @ SY657 ) @ SY653 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1987]) ).

thf(2105,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK33_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)],[1988]) ).

thf(2106,plain,
    ! [SV421: $i] :
      ( ( ! [SY658: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SY658 @ SV421 ) @ SV421 )
                    | ~ ( in @ ( sK3_C @ SY658 @ SV421 ) @ SY658 ) )
                | ~ ( ( in @ ( sK3_C @ SY658 @ SV421 ) @ SV421 )
                    | ( in @ ( sK3_C @ SY658 @ SV421 ) @ SY658 ) ) )
            | ( SV421 = SY658 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1989]) ).

thf(2107,plain,
    ! [SV422: $i] :
      ( ( ~ ( ~ ! [SY659: $i,SY660: $i] :
                  ( ~ ( relation @ SY660 )
                  | ~ ( in @ ( ordered_pair @ SV422 @ SY659 ) @ SY660 )
                  | ( in @ SV422 @ ( relation_dom @ SY660 ) ) )
            | ~ ! [SY661: $i,SY662: $i] :
                  ( ~ ( relation @ SY662 )
                  | ~ ( in @ ( ordered_pair @ SV422 @ SY661 ) @ SY662 )
                  | ( in @ SY661 @ ( relation_rng @ SY662 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1990]) ).

thf(2108,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)],[1991]) ).

thf(2109,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)],[1992]) ).

thf(2110,plain,
    ! [SV423: $i] :
      ( ( ~ ( ~ ! [SY663: $i,SY664: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                                | ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SV423 ) )
                            | ~ ( ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                                | ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY663 ) ) )
                      | ~ ( ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                          | ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SV423 )
                          | ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY663 ) ) )
                  | ( SY664
                    = ( set_union2 @ SV423 @ SY663 ) ) )
            | ~ ! [SY665: $i,SY666: $i] :
                  ( ( SY666
                   != ( set_union2 @ SV423 @ SY665 ) )
                  | ~ ( ~ ! [SY667: $i] :
                            ( ~ ( in @ SY667 @ SY666 )
                            | ( in @ SY667 @ SV423 )
                            | ( in @ SY667 @ SY665 ) )
                      | ~ ~ ( ~ ! [SY668: $i] :
                                  ( ~ ( in @ SY668 @ SV423 )
                                  | ( in @ SY668 @ SY666 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY665 )
                                  | ( in @ SX3 @ SY666 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1993]) ).

thf(2111,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)],[1994]) ).

thf(2112,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)],[1995]) ).

thf(2113,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK34_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)],[1996]) ).

thf(2114,plain,
    ( ( ~ ( empty @ sK9_A )
      | ~ ( relation @ sK9_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1997]) ).

thf(2115,plain,
    ! [SV424: $i] :
      ( ( ~ ( ~ ! [SY670: $i] :
                  ( ~ ( subset @ SY670 @ ( sK35_B @ SV424 ) )
                  | ( are_equipotent @ SY670 @ ( sK35_B @ SV424 ) )
                  | ( in @ SY670 @ ( sK35_B @ SV424 ) ) )
            | ~ ~ ( ~ ! [SY671: $i] :
                        ( ~ ( in @ SY671 @ ( sK35_B @ SV424 ) )
                        | ( in @ ( powerset @ SY671 ) @ ( sK35_B @ SV424 ) ) )
                  | ~ ~ ( ~ ! [SY672: $i,SY673: $i] :
                              ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
                              | ~ ( subset @ SY673 @ SY672 )
                              | ( in @ SY673 @ ( sK35_B @ SV424 ) ) )
                        | ~ ( in @ SV424 @ ( sK35_B @ SV424 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1998]) ).

thf(2116,plain,
    ! [SV425: $i] :
      ( ( ~ ( relation @ SV425 )
        | ~ ( ~ ! [SY674: $i] :
                  ( ~ ( relation @ SY674 )
                  | ~ ( subset @ SV425 @ SY674 )
                  | ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SY674 ) ) )
            | ~ ! [SY675: $i] :
                  ( ~ ( relation @ SY675 )
                  | ~ ( subset @ SV425 @ SY675 )
                  | ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SY675 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1999]) ).

thf(2117,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)],[2000]) ).

thf(2118,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK37_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2001]) ).

thf(2119,plain,
    ! [SV426: $i] :
      ( ( ~ ( ~ ! [SY676: $i] :
                  ( ~ ( subset @ SY676 @ ( sK1_B @ SV426 ) )
                  | ( are_equipotent @ SY676 @ ( sK1_B @ SV426 ) )
                  | ( in @ SY676 @ ( sK1_B @ SV426 ) ) )
            | ~ ~ ( ~ ! [SY677: $i] :
                        ( ~ ( ~ ! [SY678: $i] :
                                  ( ~ ( subset @ SY678 @ SY677 )
                                  | ( in @ SY678 @ ( sK2_SY267 @ SY677 @ SV426 ) ) )
                            | ~ ( in @ ( sK2_SY267 @ SY677 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
                        | ~ ( in @ SY677 @ ( sK1_B @ SV426 ) ) )
                  | ~ ~ ( ~ ! [SY679: $i,SY680: $i] :
                              ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
                              | ~ ( subset @ SY680 @ SY679 )
                              | ( in @ SY680 @ ( sK1_B @ SV426 ) ) )
                        | ~ ( in @ SV426 @ ( sK1_B @ SV426 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2002]) ).

thf(2120,plain,
    ( ( ~ ( empty @ empty_set )
      | ~ ( relation @ empty_set ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2003]) ).

thf(2121,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK26_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)],[2004]) ).

thf(2122,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)],[2005]) ).

thf(2123,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)],[2006]) ).

thf(2124,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK30_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK30_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK28_C @ SX1 @ SX0 ) @ ( sK29_SY279 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2007]) ).

thf(2125,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)],[2008]) ).

thf(2126,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)],[2009]) ).

thf(2127,plain,
    ( ( ~ ~ ( empty @ sK6_A )
      | ~ ( relation @ sK6_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2010]) ).

thf(2128,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)],[2011]) ).

thf(2129,plain,
    ! [SV427: $i] :
      ( ( ~ ( relation @ SV427 )
        | ~ ( ~ ! [SY681: $i] :
                  ( ~ ( ~ ( ! [SY682: $i] :
                              ~ ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ SY682 ) @ SV427 )
                          | ~ ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ ( sK21_SY278 @ SY681 @ SV427 ) ) @ SV427 )
                          | ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) ) )
                  | ( SY681
                    = ( relation_dom @ SV427 ) ) )
            | ~ ! [SY683: $i] :
                  ( ( SY683
                   != ( relation_dom @ SV427 ) )
                  | ~ ( ~ ! [SY684: $i] :
                            ( ! [SY685: $i] :
                                ~ ( in @ ( ordered_pair @ SY684 @ SY685 ) @ SV427 )
                            | ( in @ SY684 @ SY683 ) )
                      | ~ ! [SY686: $i] :
                            ( ~ ( in @ SY686 @ SY683 )
                            | ( in @ ( ordered_pair @ SY686 @ ( sK19_D @ SY686 @ SY683 @ SV427 ) ) @ SV427 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2012]) ).

thf(2130,plain,
    ! [SV428: $i] :
      ( ( ~ ( ~ ! [SY687: $i,SY688: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SV428 )
                          | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY687 )
                          | ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SV428 )
                                | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) )
                            | ~ ( ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY687 )
                                | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) ) ) )
                  | ( SY688
                    = ( set_difference @ SV428 @ SY687 ) ) )
            | ~ ! [SY689: $i,SY690: $i] :
                  ( ( SY690
                   != ( set_difference @ SV428 @ SY689 ) )
                  | ~ ( ~ ! [SY691: $i] :
                            ( ~ ( in @ SY691 @ SV428 )
                            | ( in @ SY691 @ SY689 )
                            | ( in @ SY691 @ SY690 ) )
                      | ~ ~ ( ~ ! [SY692: $i] :
                                  ( ~ ( in @ SY692 @ SY690 )
                                  | ( in @ SY692 @ SV428 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY690 )
                                  | ~ ( in @ SX3 @ SY689 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2013]) ).

thf(2131,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)],[2014]) ).

thf(2132,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)],[2015]) ).

thf(2133,plain,
    ! [SV429: $i] :
      ( ( ~ ( ~ ! [SY694: $i,SY695: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SV429 )
                          | ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY694 )
                          | ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SV429 )
                                | ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) )
                            | ~ ( ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY694 )
                                | ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) ) ) )
                  | ( SY695
                    = ( set_intersection2 @ SV429 @ SY694 ) ) )
            | ~ ! [SY696: $i,SY697: $i] :
                  ( ( SY697
                   != ( set_intersection2 @ SV429 @ SY696 ) )
                  | ~ ( ~ ! [SY698: $i] :
                            ( ~ ( in @ SY698 @ SV429 )
                            | ~ ( in @ SY698 @ SY696 )
                            | ( in @ SY698 @ SY697 ) )
                      | ~ ~ ( ~ ! [SY699: $i] :
                                  ( ~ ( in @ SY699 @ SY697 )
                                  | ( in @ SY699 @ SV429 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY697 )
                                  | ( in @ SX3 @ SY696 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2016]) ).

thf(2134,plain,
    ! [SV430: $i] :
      ( ( ~ ( relation @ SV430 )
        | ~ ( ~ ! [SY701: $i] :
                  ( ~ ( ~ ( ! [SY702: $i] :
                              ~ ( in @ ( ordered_pair @ SY702 @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                          | ~ ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY701 @ SV430 ) @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                          | ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) ) )
                  | ( SY701
                    = ( relation_rng @ SV430 ) ) )
            | ~ ! [SY703: $i] :
                  ( ( SY703
                   != ( relation_rng @ SV430 ) )
                  | ~ ( ~ ! [SY704: $i] :
                            ( ! [SY705: $i] :
                                ~ ( in @ ( ordered_pair @ SY705 @ SY704 ) @ SV430 )
                            | ( in @ SY704 @ SY703 ) )
                      | ~ ! [SY706: $i] :
                            ( ~ ( in @ SY706 @ SY703 )
                            | ( in @ ( ordered_pair @ ( sK12_D @ SY706 @ SY703 @ SV430 ) @ SY706 ) @ SV430 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2017]) ).

thf(2135,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_SY276 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_SY276 @ 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)],[2018]) ).

thf(2136,plain,
    ! [SV431: $i] :
      ( ( ~ ( ~ ( element @ ( sK5_B @ SV431 ) @ ( powerset @ SV431 ) )
            | ~ ( empty @ ( sK5_B @ SV431 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2019]) ).

thf(2137,plain,
    ! [SV432: $i] :
      ( ( ! [SY707: $i] :
            ( ~ ( ~ ( in @ ( sK36_C @ SY707 @ SV432 ) @ SV432 )
                | ~ ~ ( in @ ( sK36_C @ SY707 @ SV432 ) @ SY707 ) )
            | ( element @ SV432 @ ( powerset @ SY707 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2020]) ).

thf(2138,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)],[2021]) ).

thf(2139,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK23_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)],[2022]) ).

thf(2140,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)],[2023]) ).

thf(2141,plain,
    ! [SV433: $i] :
      ( ( ~ ( ~ ! [SY708: $i,SY709: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                                | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                                 != SV433 ) )
                            | ~ ( ~ ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                                | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                                 != SY708 ) ) )
                      | ~ ( ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                          | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                            = SV433 )
                          | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                            = SY708 ) ) )
                  | ( SY709
                    = ( unordered_pair @ SV433 @ SY708 ) ) )
            | ~ ! [SY710: $i,SY711: $i] :
                  ( ( SY711
                   != ( unordered_pair @ SV433 @ SY710 ) )
                  | ~ ( ~ ! [SY712: $i] :
                            ( ~ ( in @ SY712 @ SY711 )
                            | ( SY712 = SV433 )
                            | ( SY712 = SY710 ) )
                      | ~ ~ ( ~ ! [SY713: $i] :
                                  ( ( SY713 != SV433 )
                                  | ( in @ SY713 @ SY711 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY710 )
                                  | ( in @ SX3 @ SY711 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2024]) ).

thf(2142,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK38_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)],[2025]) ).

thf(2143,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK27_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK27_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK27_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)],[2026]) ).

thf(2144,plain,
    ! [SV434: $i] :
      ( ( ~ ( ~ ! [SY715: $i] :
                  ( ~ ( subset @ SV434 @ SY715 )
                  | ! [SY716: $i] : ( subset @ ( cartesian_product2 @ SV434 @ SY716 ) @ ( cartesian_product2 @ SY715 @ SY716 ) ) )
            | ~ ! [SY717: $i] :
                  ( ~ ( subset @ SV434 @ SY717 )
                  | ! [SY718: $i] : ( subset @ ( cartesian_product2 @ SY718 @ SV434 ) @ ( cartesian_product2 @ SY718 @ SY717 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2027]) ).

thf(2145,plain,
    ! [SV435: $i] :
      ( ( ( empty @ SV435 )
        | ~ ( ~ ( element @ ( sK8_B @ SV435 ) @ ( powerset @ SV435 ) )
            | ~ ~ ( empty @ ( sK8_B @ SV435 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2028]) ).

thf(2146,plain,
    ! [SV347: $i] :
      ( ( ( singleton @ SV347 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2029]) ).

thf(2147,plain,
    ! [SV349: $i] :
      ( ( ( ~ ( subset @ SV349 @ empty_set ) )
        = $true )
      | ( ( SV349 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2031]) ).

thf(2148,plain,
    ! [SV350: $i] :
      ( ( ( ( empty @ SV350 )
          | ~ ( relation @ SV350 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV350 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2032]) ).

thf(2149,plain,
    ! [SV351: $i] :
      ( ( ( ( empty @ SV351 )
          | ~ ( relation @ SV351 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV351 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2033]) ).

thf(2150,plain,
    ! [SV356: $i] :
      ( ( ( ~ ( empty @ SV356 ) )
        = $true )
      | ( ( SV356 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2038]) ).

thf(2151,plain,
    ! [SV436: $i,SV357: $i] :
      ( ( ~ ( in @ SV357 @ SV436 )
        | ( ( set_union2 @ ( singleton @ SV357 ) @ SV436 )
          = SV436 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2039]) ).

thf(2152,plain,
    ! [SV437: $i,SV358: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV358 ) @ SV437 )
        | ~ ( in @ SV358 @ SV437 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2040]) ).

thf(2153,plain,
    ! [SV438: $i,SV359: $i] :
      ( ( ( in @ SV359 @ SV438 )
        | ( disjoint @ ( singleton @ SV359 ) @ SV438 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2041]) ).

thf(2154,plain,
    ! [SV360: $i,SV439: $i] :
      ( ( ~ ( element @ SV439 @ ( powerset @ SV360 ) )
        | ! [SY719: $i] :
            ( ~ ( in @ SY719 @ SV439 )
            | ( in @ SY719 @ SV360 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2042]) ).

thf(2155,plain,
    ! [SV440: $i,SV361: $i] :
      ( ( ~ ( subset @ SV361 @ SV440 )
        | ! [SY720: $i] :
            ( ( in @ SY720 @ SV361 )
            | ( subset @ SV361 @ ( set_difference @ SV440 @ ( singleton @ SY720 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2043]) ).

thf(2156,plain,
    ! [SV441: $i,SV362: $i] :
      ( ( ~ ( in @ SV362 @ SV441 )
        | ( subset @ SV362 @ ( union @ SV441 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2044]) ).

thf(2157,plain,
    ! [SV442: $i,SV363: $i] :
      ( ( ! [SY721: $i,SY722: $i] :
            ( ~ ( subset @ SV363 @ SV442 )
            | ~ ( subset @ SY721 @ SY722 )
            | ( subset @ ( cartesian_product2 @ SV363 @ SY721 ) @ ( cartesian_product2 @ SV442 @ SY722 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2045]) ).

thf(2158,plain,
    ! [SV443: $i,SV364: $i] :
      ( ( ~ ( subset @ SV364 @ SV443 )
        | ( ( set_union2 @ SV364 @ SV443 )
          = SV443 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2046]) ).

thf(2159,plain,
    ! [SV444: $i,SV365: $i] :
      ( ( subset @ ( set_intersection2 @ SV365 @ SV444 ) @ SV365 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2047]) ).

thf(2160,plain,
    ! [SV445: $i,SV366: $i] :
      ( ( ! [SY723: $i] :
            ( ~ ( subset @ SV366 @ SV445 )
            | ~ ( subset @ SV366 @ SY723 )
            | ( subset @ SV366 @ ( set_intersection2 @ SV445 @ SY723 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2048]) ).

thf(2161,plain,
    ! [SV446: $i,SV367: $i] :
      ( ( ! [SY724: $i] :
            ( ~ ( subset @ SV367 @ SV446 )
            | ~ ( subset @ SV446 @ SY724 )
            | ( subset @ SV367 @ SY724 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2049]) ).

thf(2162,plain,
    ! [SV368: $i] :
      ( ( ( ~ ( relation @ SV368 ) )
        = $true )
      | ( ( subset @ SV368 @ ( cartesian_product2 @ ( relation_dom @ SV368 ) @ ( relation_rng @ SV368 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2050]) ).

thf(2163,plain,
    ! [SV447: $i,SV369: $i] :
      ( ( ~ ( subset @ SV369 @ SV447 )
        | ! [SY725: $i] : ( subset @ ( set_intersection2 @ SV369 @ SY725 ) @ ( set_intersection2 @ SV447 @ SY725 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2051]) ).

thf(2164,plain,
    ! [SV448: $i,SV370: $i] :
      ( ( ~ ( subset @ SV370 @ SV448 )
        | ( ( set_intersection2 @ SV370 @ SV448 )
          = SV370 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2052]) ).

thf(2165,plain,
    ! [SV449: $i,SV371: $i] :
      ( ( ~ ( subset @ SV371 @ SV449 )
        | ! [SY726: $i] : ( subset @ ( set_difference @ SV371 @ SY726 ) @ ( set_difference @ SV449 @ SY726 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2053]) ).

thf(2166,plain,
    ! [SV450: $i,SV372: $i] :
      ( ( subset @ ( set_difference @ SV372 @ SV450 ) @ SV372 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2054]) ).

thf(2167,plain,
    ! [SV451: $i,SV373: $i] :
      ( ( ( set_union2 @ SV373 @ ( set_difference @ SV451 @ SV373 ) )
        = ( set_union2 @ SV373 @ SV451 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2055]) ).

thf(2168,plain,
    ! [SV452: $i,SV374: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV374 @ SV452 ) @ SV452 )
        = ( set_difference @ SV374 @ SV452 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2056]) ).

thf(2169,plain,
    ! [SV375: $i] :
      ( ( ( ~ ( relation @ SV375 ) )
        = $true )
      | ( ( ! [SY608: $i] :
              ( ~ ( relation @ SY608 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV375 @ SY608 ) ) @ ( relation_dom @ SV375 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2057]) ).

thf(2170,plain,
    ! [SV376: $i] :
      ( ( ( ~ ( relation @ SV376 ) )
        = $true )
      | ( ( ! [SY609: $i] :
              ( ~ ( relation @ SY609 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV376 @ SY609 ) ) @ ( relation_rng @ SY609 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2058]) ).

thf(2171,plain,
    ! [SV453: $i,SV377: $i] :
      ( ( ~ ( subset @ SV377 @ SV453 )
        | ( SV453
          = ( set_union2 @ SV377 @ ( set_difference @ SV453 @ SV377 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2059]) ).

thf(2172,plain,
    ! [SV378: $i] :
      ( ( ( ~ ( relation @ SV378 ) )
        = $true )
      | ( ( ! [SY611: $i] :
              ( ~ ( relation @ SY611 )
              | ~ ( subset @ ( relation_rng @ SV378 ) @ ( relation_dom @ SY611 ) )
              | ( ( relation_dom @ ( relation_composition @ SV378 @ SY611 ) )
                = ( relation_dom @ SV378 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2060]) ).

thf(2173,plain,
    ! [SV454: $i,SV379: $i] :
      ( ( ~ ( in @ SV379 @ SV454 )
        | ( ( set_union2 @ ( singleton @ SV379 ) @ SV454 )
          = SV454 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2061]) ).

thf(2174,plain,
    ! [SV380: $i] :
      ( ( ( ~ ( relation @ SV380 ) )
        = $true )
      | ( ( ! [SY613: $i] :
              ( ~ ( relation @ SY613 )
              | ~ ( subset @ ( relation_dom @ SV380 ) @ ( relation_rng @ SY613 ) )
              | ( ( relation_rng @ ( relation_composition @ SY613 @ SV380 ) )
                = ( relation_rng @ SV380 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2062]) ).

thf(2175,plain,
    ! [SV455: $i,SV381: $i] :
      ( ( ( set_difference @ SV381 @ ( set_difference @ SV381 @ SV455 ) )
        = ( set_intersection2 @ SV381 @ SV455 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2063]) ).

thf(2176,plain,
    ! [SV382: $i] :
      ( ( ( ~ ( relation @ SV382 ) )
        = $true )
      | ( ( ( in @ ( ordered_pair @ ( sK31_B @ SV382 ) @ ( sK32_SY282 @ SV382 ) ) @ SV382 )
          | ( SV382 = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2064]) ).

thf(2177,plain,
    ! [SV383: $i,SV456: $i] :
      ( ( ~ ( proper_subset @ SV456 @ SV383 )
        | ~ ( subset @ SV383 @ SV456 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2065]) ).

thf(2178,plain,
    ! [SV384: $i,SV457: $i] :
      ( ( ! [SY727: $i] :
            ( ~ ( disjoint @ SV457 @ SY727 )
            | ~ ( subset @ SV384 @ SV457 )
            | ( disjoint @ SV384 @ SY727 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2066]) ).

thf(2179,plain,
    ! [SV458: $i,SV386: $i] :
      ( ( ~ ( subset @ ( singleton @ SV386 ) @ ( singleton @ SV458 ) )
        | ( SV386 = SV458 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2068]) ).

thf(2180,plain,
    ! [SV459: $i,SV387: $i] :
      ( ( subset @ SV387 @ ( set_union2 @ SV387 @ SV459 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2069]) ).

thf(2181,plain,
    ! [SV460: $i,SV388: $i] :
      ( ( ! [SY728: $i] :
            ( ~ ( subset @ SV388 @ SV460 )
            | ~ ( subset @ SY728 @ SV460 )
            | ( subset @ ( set_union2 @ SV388 @ SY728 ) @ SV460 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2070]) ).

thf(2182,plain,
    ! [SV461: $i,SV389: $i] :
      ( ( ! [SY729: $i] :
            ( ( singleton @ SV389 )
           != ( unordered_pair @ SV461 @ SY729 ) )
        | ( SV389 = SV461 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2071]) ).

thf(2183,plain,
    ! [SV462: $i,SV390: $i] :
      ( ( ~ ( in @ SV390 @ SV462 )
        | ( subset @ SV390 @ ( union @ SV462 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2072]) ).

thf(2184,plain,
    ! [SV463: $i,SV392: $i] :
      ( ( ! [SY730: $i] :
            ( ( ( singleton @ SV392 )
             != ( unordered_pair @ SV463 @ SY730 ) )
            | ( SV463 = SY730 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2074]) ).

thf(2185,plain,
    ! [SV464: $i,SV393: $i] :
      ( ( ~ ( in @ SV393 @ SV464 )
        | ~ ( in @ SV464 @ SV393 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2075]) ).

thf(2186,plain,
    ! [SV394: $i] :
      ( ( ( ~ ( empty @ SV394 ) )
        = $true )
      | ( ( relation @ SV394 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2076]) ).

thf(2187,plain,
    ! [SV465: $i,SV395: $i] :
      ( ( ( set_union2 @ SV395 @ SV465 )
        = ( set_union2 @ SV465 @ SV395 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2077]) ).

thf(2188,plain,
    ! [SV466: $i,SV396: $i] :
      ( ( ( set_intersection2 @ SV396 @ SV466 )
        = ( set_intersection2 @ SV466 @ SV396 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2078]) ).

thf(2189,plain,
    ! [SV397: $i] :
      ( ( ( ~ ( relation @ SV397 ) )
        = $true )
      | ( ( ( relation_field @ SV397 )
          = ( set_union2 @ ( relation_dom @ SV397 ) @ ( relation_rng @ SV397 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2079]) ).

thf(2190,plain,
    ! [SV398: $i] :
      ( ( ( ~ ( relation @ SV398 ) )
        = $true )
      | ( ( relation @ ( relation_inverse @ SV398 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2080]) ).

thf(2191,plain,
    ! [SV467: $i,SV399: $i] :
      ( ( ~ ( relation @ SV399 )
        | ~ ( relation @ SV467 )
        | ( relation @ ( relation_composition @ SV399 @ SV467 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2081]) ).

thf(2192,plain,
    ! [SV400: $i] :
      ( ( empty @ ( powerset @ SV400 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2082]) ).

thf(2193,plain,
    ! [SV468: $i,SV401: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV401 @ SV468 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2083]) ).

thf(2194,plain,
    ! [SV469: $i,SV402: $i] :
      ( ( ~ ( relation @ SV402 )
        | ~ ( relation @ SV469 )
        | ( relation @ ( set_union2 @ SV402 @ SV469 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2084]) ).

thf(2195,plain,
    ! [SV403: $i] :
      ( ( empty @ ( singleton @ SV403 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2085]) ).

thf(2196,plain,
    ! [SV404: $i] :
      ( ( ( empty @ SV404 )
        = $true )
      | ( ( ! [SY633: $i] :
              ~ ( empty @ ( set_union2 @ SV404 @ SY633 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2086]) ).

thf(2197,plain,
    ! [SV470: $i,SV405: $i] :
      ( ( ~ ( empty @ ( unordered_pair @ SV405 @ SV470 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2087]) ).

thf(2198,plain,
    ! [SV406: $i] :
      ( ( ( empty @ SV406 )
        = $true )
      | ( ( ! [SY635: $i] :
              ~ ( empty @ ( set_union2 @ SY635 @ SV406 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2088]) ).

thf(2199,plain,
    ! [SV471: $i,SV407: $i] :
      ( ( ( empty @ SV407 )
        | ( empty @ SV471 )
        | ~ ( empty @ ( cartesian_product2 @ SV407 @ SV471 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2089]) ).

thf(2200,plain,
    ! [SV410: $i] :
      ( ( ( ~ ( relation @ SV410 ) )
        = $true )
      | ( ( ( relation_inverse @ ( relation_inverse @ SV410 ) )
          = SV410 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2092]) ).

thf(2201,plain,
    ! [SV472: $i,SV412: $i] :
      ( ( ~ ( disjoint @ SV412 @ SV472 )
        | ( disjoint @ SV472 @ SV412 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2095]) ).

thf(2202,plain,
    ! [SV473: $i,SV413: $i] :
      ( ( ~ ( in @ SV413 @ SV473 )
        | ( element @ SV413 @ SV473 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2096]) ).

thf(2203,plain,
    ! [SV474: $i,SV414: $i] :
      ( ( ~ ( element @ SV414 @ SV474 )
        | ( empty @ SV474 )
        | ( in @ SV414 @ SV474 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2097]) ).

thf(2204,plain,
    ! [SV415: $i,SV475: $i] :
      ( ( ! [SY731: $i] :
            ( ~ ( element @ SV475 @ ( powerset @ SY731 ) )
            | ~ ( in @ SV415 @ SV475 )
            | ( element @ SV415 @ SY731 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2098]) ).

thf(2205,plain,
    ! [SV416: $i,SV476: $i] :
      ( ( ! [SY732: $i] :
            ( ~ ( element @ SV476 @ ( powerset @ SY732 ) )
            | ~ ( in @ SV416 @ SV476 )
            | ~ ( empty @ SY732 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2099]) ).

thf(2206,plain,
    ! [SV417: $i,SV477: $i] :
      ( ( ~ ( empty @ SV477 )
        | ~ ( in @ SV417 @ SV477 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2100]) ).

thf(2207,plain,
    ! [SV478: $i,SV418: $i] :
      ( ( ( SV418 = SV478 )
        | ~ ( empty @ SV418 )
        | ~ ( empty @ SV478 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2101]) ).

thf(2208,plain,
    ! [SV419: $i] :
      ( ( ~ ! [SY646: $i,SY647: $i] :
              ( ~ ( in @ SV419 @ SY647 )
              | ~ ( in @ SY646 @ SY647 )
              | ( subset @ ( unordered_pair @ SV419 @ SY646 ) @ SY647 ) )
        | ~ ~ ( ~ ! [SY648: $i,SY649: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV419 @ SY648 ) @ SY649 )
                    | ( in @ SV419 @ SY649 ) )
              | ~ ! [SY650: $i,SY651: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV419 @ SY650 ) @ SY651 )
                    | ( in @ SY650 @ SY651 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2103]) ).

thf(2209,plain,
    ! [SV420: $i] :
      ( ( ( ~ ( relation @ SV420 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY652: $i] :
                    ( ~ ( relation @ SY652 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                            | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                            | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) ) )
                    | ( SY652
                      = ( relation_inverse @ SV420 ) ) )
              | ~ ! [SY653: $i] :
                    ( ~ ( relation @ SY653 )
                    | ( SY653
                     != ( relation_inverse @ SV420 ) )
                    | ~ ( ~ ! [SY654: $i,SY655: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY654 @ SY655 ) @ SY653 )
                              | ( in @ ( ordered_pair @ SY655 @ SY654 ) @ SV420 ) )
                        | ~ ! [SY656: $i,SY657: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY657 @ SY656 ) @ SV420 )
                              | ( in @ ( ordered_pair @ SY656 @ SY657 ) @ SY653 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2104]) ).

thf(2210,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK33_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2105]) ).

thf(2211,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2105]) ).

thf(2212,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
                | ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) )
            | ~ ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
                | ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) ) )
        | ( SV421 = SV479 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2106]) ).

thf(2213,plain,
    ! [SV422: $i] :
      ( ( ~ ! [SY659: $i,SY660: $i] :
              ( ~ ( relation @ SY660 )
              | ~ ( in @ ( ordered_pair @ SV422 @ SY659 ) @ SY660 )
              | ( in @ SV422 @ ( relation_dom @ SY660 ) ) )
        | ~ ! [SY661: $i,SY662: $i] :
              ( ~ ( relation @ SY662 )
              | ~ ( in @ ( ordered_pair @ SV422 @ SY661 ) @ SY662 )
              | ( in @ SY661 @ ( relation_rng @ SY662 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2107]) ).

thf(2214,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2108]) ).

thf(2215,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)],[2108]) ).

thf(2216,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2109]) ).

thf(2217,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2109]) ).

thf(2218,plain,
    ! [SV423: $i] :
      ( ( ~ ! [SY663: $i,SY664: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                            | ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SV423 ) )
                        | ~ ( ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                            | ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY663 ) ) )
                  | ~ ( ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                      | ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SV423 )
                      | ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY663 ) ) )
              | ( SY664
                = ( set_union2 @ SV423 @ SY663 ) ) )
        | ~ ! [SY665: $i,SY666: $i] :
              ( ( SY666
               != ( set_union2 @ SV423 @ SY665 ) )
              | ~ ( ~ ! [SY667: $i] :
                        ( ~ ( in @ SY667 @ SY666 )
                        | ( in @ SY667 @ SV423 )
                        | ( in @ SY667 @ SY665 ) )
                  | ~ ~ ( ~ ! [SY668: $i] :
                              ( ~ ( in @ SY668 @ SV423 )
                              | ( in @ SY668 @ SY666 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY665 )
                              | ( in @ SX3 @ SY666 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2110]) ).

thf(2219,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2111]) ).

thf(2220,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)],[2111]) ).

thf(2221,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2112]) ).

thf(2222,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)],[2112]) ).

thf(2223,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2113]) ).

thf(2224,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2113]) ).

thf(2225,plain,
    ( ( ~ ( empty @ sK9_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2114]) ).

thf(2226,plain,
    ( ( ~ ( relation @ sK9_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2114]) ).

thf(2227,plain,
    ! [SV424: $i] :
      ( ( ~ ! [SY670: $i] :
              ( ~ ( subset @ SY670 @ ( sK35_B @ SV424 ) )
              | ( are_equipotent @ SY670 @ ( sK35_B @ SV424 ) )
              | ( in @ SY670 @ ( sK35_B @ SV424 ) ) )
        | ~ ~ ( ~ ! [SY671: $i] :
                    ( ~ ( in @ SY671 @ ( sK35_B @ SV424 ) )
                    | ( in @ ( powerset @ SY671 ) @ ( sK35_B @ SV424 ) ) )
              | ~ ~ ( ~ ! [SY672: $i,SY673: $i] :
                          ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
                          | ~ ( subset @ SY673 @ SY672 )
                          | ( in @ SY673 @ ( sK35_B @ SV424 ) ) )
                    | ~ ( in @ SV424 @ ( sK35_B @ SV424 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2115]) ).

thf(2228,plain,
    ! [SV425: $i] :
      ( ( ( ~ ( relation @ SV425 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY674: $i] :
                    ( ~ ( relation @ SY674 )
                    | ~ ( subset @ SV425 @ SY674 )
                    | ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SY674 ) ) )
              | ~ ! [SY675: $i] :
                    ( ~ ( relation @ SY675 )
                    | ~ ( subset @ SV425 @ SY675 )
                    | ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SY675 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2116]) ).

thf(2229,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2117]) ).

thf(2230,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2117]) ).

thf(2231,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK37_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2118]) ).

thf(2232,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2118]) ).

thf(2233,plain,
    ! [SV426: $i] :
      ( ( ~ ! [SY676: $i] :
              ( ~ ( subset @ SY676 @ ( sK1_B @ SV426 ) )
              | ( are_equipotent @ SY676 @ ( sK1_B @ SV426 ) )
              | ( in @ SY676 @ ( sK1_B @ SV426 ) ) )
        | ~ ~ ( ~ ! [SY677: $i] :
                    ( ~ ( ~ ! [SY678: $i] :
                              ( ~ ( subset @ SY678 @ SY677 )
                              | ( in @ SY678 @ ( sK2_SY267 @ SY677 @ SV426 ) ) )
                        | ~ ( in @ ( sK2_SY267 @ SY677 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
                    | ~ ( in @ SY677 @ ( sK1_B @ SV426 ) ) )
              | ~ ~ ( ~ ! [SY679: $i,SY680: $i] :
                          ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
                          | ~ ( subset @ SY680 @ SY679 )
                          | ( in @ SY680 @ ( sK1_B @ SV426 ) ) )
                    | ~ ( in @ SV426 @ ( sK1_B @ SV426 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2119]) ).

thf(2234,plain,
    ( ( ~ ( empty @ empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2120]) ).

thf(2235,plain,
    ( ( ~ ( relation @ empty_set ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2120]) ).

thf(2236,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2121]) ).

thf(2237,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)],[2121]) ).

thf(2238,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)],[2122]) ).

thf(2239,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)],[2122]) ).

thf(2240,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2123]) ).

thf(2241,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2123]) ).

thf(2242,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK30_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK30_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2124]) ).

thf(2243,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK28_C @ SX1 @ SX0 ) @ ( sK29_SY279 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2124]) ).

thf(2244,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2125]) ).

thf(2245,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2125]) ).

thf(2246,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2126]) ).

thf(2247,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)],[2126]) ).

thf(2248,plain,
    ( ( ~ ~ ( empty @ sK6_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2127]) ).

thf(2249,plain,
    ( ( ~ ( relation @ sK6_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2127]) ).

thf(2250,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2128]) ).

thf(2251,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2128]) ).

thf(2252,plain,
    ! [SV427: $i] :
      ( ( ( ~ ( relation @ SV427 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY681: $i] :
                    ( ~ ( ~ ( ! [SY682: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ SY682 ) @ SV427 )
                            | ~ ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ ( sK21_SY278 @ SY681 @ SV427 ) ) @ SV427 )
                            | ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) ) )
                    | ( SY681
                      = ( relation_dom @ SV427 ) ) )
              | ~ ! [SY683: $i] :
                    ( ( SY683
                     != ( relation_dom @ SV427 ) )
                    | ~ ( ~ ! [SY684: $i] :
                              ( ! [SY685: $i] :
                                  ~ ( in @ ( ordered_pair @ SY684 @ SY685 ) @ SV427 )
                              | ( in @ SY684 @ SY683 ) )
                        | ~ ! [SY686: $i] :
                              ( ~ ( in @ SY686 @ SY683 )
                              | ( in @ ( ordered_pair @ SY686 @ ( sK19_D @ SY686 @ SY683 @ SV427 ) ) @ SV427 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2129]) ).

thf(2253,plain,
    ! [SV428: $i] :
      ( ( ~ ! [SY687: $i,SY688: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SV428 )
                      | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY687 )
                      | ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SV428 )
                            | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) )
                        | ~ ( ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY687 )
                            | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) ) ) )
              | ( SY688
                = ( set_difference @ SV428 @ SY687 ) ) )
        | ~ ! [SY689: $i,SY690: $i] :
              ( ( SY690
               != ( set_difference @ SV428 @ SY689 ) )
              | ~ ( ~ ! [SY691: $i] :
                        ( ~ ( in @ SY691 @ SV428 )
                        | ( in @ SY691 @ SY689 )
                        | ( in @ SY691 @ SY690 ) )
                  | ~ ~ ( ~ ! [SY692: $i] :
                              ( ~ ( in @ SY692 @ SY690 )
                              | ( in @ SY692 @ SV428 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY690 )
                              | ~ ( in @ SX3 @ SY689 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2130]) ).

thf(2254,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_rng @ SX0 )
              = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2131]) ).

thf(2255,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ( ( relation_dom @ SX0 )
              = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2131]) ).

thf(2256,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2132]) ).

thf(2257,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2132]) ).

thf(2258,plain,
    ! [SV429: $i] :
      ( ( ~ ! [SY694: $i,SY695: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SV429 )
                      | ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY694 )
                      | ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SV429 )
                            | ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) )
                        | ~ ( ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY694 )
                            | ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) ) ) )
              | ( SY695
                = ( set_intersection2 @ SV429 @ SY694 ) ) )
        | ~ ! [SY696: $i,SY697: $i] :
              ( ( SY697
               != ( set_intersection2 @ SV429 @ SY696 ) )
              | ~ ( ~ ! [SY698: $i] :
                        ( ~ ( in @ SY698 @ SV429 )
                        | ~ ( in @ SY698 @ SY696 )
                        | ( in @ SY698 @ SY697 ) )
                  | ~ ~ ( ~ ! [SY699: $i] :
                              ( ~ ( in @ SY699 @ SY697 )
                              | ( in @ SY699 @ SV429 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY697 )
                              | ( in @ SX3 @ SY696 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2133]) ).

thf(2259,plain,
    ! [SV430: $i] :
      ( ( ( ~ ( relation @ SV430 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY701: $i] :
                    ( ~ ( ~ ( ! [SY702: $i] :
                                ~ ( in @ ( ordered_pair @ SY702 @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                            | ~ ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY701 @ SV430 ) @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                            | ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) ) )
                    | ( SY701
                      = ( relation_rng @ SV430 ) ) )
              | ~ ! [SY703: $i] :
                    ( ( SY703
                     != ( relation_rng @ SV430 ) )
                    | ~ ( ~ ! [SY704: $i] :
                              ( ! [SY705: $i] :
                                  ~ ( in @ ( ordered_pair @ SY705 @ SY704 ) @ SV430 )
                              | ( in @ SY704 @ SY703 ) )
                        | ~ ! [SY706: $i] :
                              ( ~ ( in @ SY706 @ SY703 )
                              | ( in @ ( ordered_pair @ ( sK12_D @ SY706 @ SY703 @ SV430 ) @ SY706 ) @ SV430 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2134]) ).

thf(2260,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_SY276 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_SY276 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2135]) ).

thf(2261,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)],[2135]) ).

thf(2262,plain,
    ! [SV431: $i] :
      ( ( ~ ( element @ ( sK5_B @ SV431 ) @ ( powerset @ SV431 ) )
        | ~ ( empty @ ( sK5_B @ SV431 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2136]) ).

thf(2263,plain,
    ! [SV432: $i,SV480: $i] :
      ( ( ~ ( ~ ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV432 )
            | ~ ~ ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV480 ) )
        | ( element @ SV432 @ ( powerset @ SV480 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2137]) ).

thf(2264,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2138]) ).

thf(2265,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2138]) ).

thf(2266,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2139]) ).

thf(2267,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2139]) ).

thf(2268,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2140]) ).

thf(2269,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2140]) ).

thf(2270,plain,
    ! [SV433: $i] :
      ( ( ~ ! [SY708: $i,SY709: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                            | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                             != SV433 ) )
                        | ~ ( ~ ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                            | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                             != SY708 ) ) )
                  | ~ ( ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                      | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                        = SV433 )
                      | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                        = SY708 ) ) )
              | ( SY709
                = ( unordered_pair @ SV433 @ SY708 ) ) )
        | ~ ! [SY710: $i,SY711: $i] :
              ( ( SY711
               != ( unordered_pair @ SV433 @ SY710 ) )
              | ~ ( ~ ! [SY712: $i] :
                        ( ~ ( in @ SY712 @ SY711 )
                        | ( SY712 = SV433 )
                        | ( SY712 = SY710 ) )
                  | ~ ~ ( ~ ! [SY713: $i] :
                              ( ( SY713 != SV433 )
                              | ( in @ SY713 @ SY711 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY710 )
                              | ( in @ SX3 @ SY711 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2141]) ).

thf(2271,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK38_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)],[2142]) ).

thf(2272,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)],[2142]) ).

thf(2273,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK27_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK27_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2143]) ).

thf(2274,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)],[2143]) ).

thf(2275,plain,
    ! [SV434: $i] :
      ( ( ~ ! [SY715: $i] :
              ( ~ ( subset @ SV434 @ SY715 )
              | ! [SY716: $i] : ( subset @ ( cartesian_product2 @ SV434 @ SY716 ) @ ( cartesian_product2 @ SY715 @ SY716 ) ) )
        | ~ ! [SY717: $i] :
              ( ~ ( subset @ SV434 @ SY717 )
              | ! [SY718: $i] : ( subset @ ( cartesian_product2 @ SY718 @ SV434 ) @ ( cartesian_product2 @ SY718 @ SY717 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2144]) ).

thf(2276,plain,
    ! [SV435: $i] :
      ( ( ( empty @ SV435 )
        = $true )
      | ( ( ~ ( ~ ( element @ ( sK8_B @ SV435 ) @ ( powerset @ SV435 ) )
              | ~ ~ ( empty @ ( sK8_B @ SV435 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2145]) ).

thf(2277,plain,
    ! [SV349: $i] :
      ( ( ( subset @ SV349 @ empty_set )
        = $false )
      | ( ( SV349 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2147]) ).

thf(2278,plain,
    ! [SV350: $i] :
      ( ( ( empty @ SV350 )
        = $true )
      | ( ( ~ ( relation @ SV350 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV350 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2148]) ).

thf(2279,plain,
    ! [SV351: $i] :
      ( ( ( empty @ SV351 )
        = $true )
      | ( ( ~ ( relation @ SV351 ) )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV351 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2149]) ).

thf(2280,plain,
    ! [SV356: $i] :
      ( ( ( empty @ SV356 )
        = $false )
      | ( ( SV356 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2150]) ).

thf(2281,plain,
    ! [SV436: $i,SV357: $i] :
      ( ( ( ~ ( in @ SV357 @ SV436 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV357 ) @ SV436 )
          = SV436 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2151]) ).

thf(2282,plain,
    ! [SV437: $i,SV358: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV358 ) @ SV437 ) )
        = $true )
      | ( ( ~ ( in @ SV358 @ SV437 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2152]) ).

thf(2283,plain,
    ! [SV438: $i,SV359: $i] :
      ( ( ( in @ SV359 @ SV438 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV359 ) @ SV438 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2153]) ).

thf(2284,plain,
    ! [SV360: $i,SV439: $i] :
      ( ( ( ~ ( element @ SV439 @ ( powerset @ SV360 ) ) )
        = $true )
      | ( ( ! [SY719: $i] :
              ( ~ ( in @ SY719 @ SV439 )
              | ( in @ SY719 @ SV360 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2154]) ).

thf(2285,plain,
    ! [SV440: $i,SV361: $i] :
      ( ( ( ~ ( subset @ SV361 @ SV440 ) )
        = $true )
      | ( ( ! [SY720: $i] :
              ( ( in @ SY720 @ SV361 )
              | ( subset @ SV361 @ ( set_difference @ SV440 @ ( singleton @ SY720 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2155]) ).

thf(2286,plain,
    ! [SV441: $i,SV362: $i] :
      ( ( ( ~ ( in @ SV362 @ SV441 ) )
        = $true )
      | ( ( subset @ SV362 @ ( union @ SV441 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2156]) ).

thf(2287,plain,
    ! [SV481: $i,SV442: $i,SV363: $i] :
      ( ( ! [SY733: $i] :
            ( ~ ( subset @ SV363 @ SV442 )
            | ~ ( subset @ SV481 @ SY733 )
            | ( subset @ ( cartesian_product2 @ SV363 @ SV481 ) @ ( cartesian_product2 @ SV442 @ SY733 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2157]) ).

thf(2288,plain,
    ! [SV443: $i,SV364: $i] :
      ( ( ( ~ ( subset @ SV364 @ SV443 ) )
        = $true )
      | ( ( ( set_union2 @ SV364 @ SV443 )
          = SV443 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2158]) ).

thf(2289,plain,
    ! [SV482: $i,SV445: $i,SV366: $i] :
      ( ( ~ ( subset @ SV366 @ SV445 )
        | ~ ( subset @ SV366 @ SV482 )
        | ( subset @ SV366 @ ( set_intersection2 @ SV445 @ SV482 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2160]) ).

thf(2290,plain,
    ! [SV483: $i,SV446: $i,SV367: $i] :
      ( ( ~ ( subset @ SV367 @ SV446 )
        | ~ ( subset @ SV446 @ SV483 )
        | ( subset @ SV367 @ SV483 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2161]) ).

thf(2291,plain,
    ! [SV368: $i] :
      ( ( ( relation @ SV368 )
        = $false )
      | ( ( subset @ SV368 @ ( cartesian_product2 @ ( relation_dom @ SV368 ) @ ( relation_rng @ SV368 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2162]) ).

thf(2292,plain,
    ! [SV447: $i,SV369: $i] :
      ( ( ( ~ ( subset @ SV369 @ SV447 ) )
        = $true )
      | ( ( ! [SY725: $i] : ( subset @ ( set_intersection2 @ SV369 @ SY725 ) @ ( set_intersection2 @ SV447 @ SY725 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2163]) ).

thf(2293,plain,
    ! [SV448: $i,SV370: $i] :
      ( ( ( ~ ( subset @ SV370 @ SV448 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV370 @ SV448 )
          = SV370 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2164]) ).

thf(2294,plain,
    ! [SV449: $i,SV371: $i] :
      ( ( ( ~ ( subset @ SV371 @ SV449 ) )
        = $true )
      | ( ( ! [SY726: $i] : ( subset @ ( set_difference @ SV371 @ SY726 ) @ ( set_difference @ SV449 @ SY726 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2165]) ).

thf(2295,plain,
    ! [SV375: $i] :
      ( ( ( relation @ SV375 )
        = $false )
      | ( ( ! [SY608: $i] :
              ( ~ ( relation @ SY608 )
              | ( subset @ ( relation_dom @ ( relation_composition @ SV375 @ SY608 ) ) @ ( relation_dom @ SV375 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2169]) ).

thf(2296,plain,
    ! [SV376: $i] :
      ( ( ( relation @ SV376 )
        = $false )
      | ( ( ! [SY609: $i] :
              ( ~ ( relation @ SY609 )
              | ( subset @ ( relation_rng @ ( relation_composition @ SV376 @ SY609 ) ) @ ( relation_rng @ SY609 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2170]) ).

thf(2297,plain,
    ! [SV453: $i,SV377: $i] :
      ( ( ( ~ ( subset @ SV377 @ SV453 ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV377 @ ( set_difference @ SV453 @ SV377 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2171]) ).

thf(2298,plain,
    ! [SV378: $i] :
      ( ( ( relation @ SV378 )
        = $false )
      | ( ( ! [SY611: $i] :
              ( ~ ( relation @ SY611 )
              | ~ ( subset @ ( relation_rng @ SV378 ) @ ( relation_dom @ SY611 ) )
              | ( ( relation_dom @ ( relation_composition @ SV378 @ SY611 ) )
                = ( relation_dom @ SV378 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2172]) ).

thf(2299,plain,
    ! [SV454: $i,SV379: $i] :
      ( ( ( ~ ( in @ SV379 @ SV454 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV379 ) @ SV454 )
          = SV454 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2173]) ).

thf(2300,plain,
    ! [SV380: $i] :
      ( ( ( relation @ SV380 )
        = $false )
      | ( ( ! [SY613: $i] :
              ( ~ ( relation @ SY613 )
              | ~ ( subset @ ( relation_dom @ SV380 ) @ ( relation_rng @ SY613 ) )
              | ( ( relation_rng @ ( relation_composition @ SY613 @ SV380 ) )
                = ( relation_rng @ SV380 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2174]) ).

thf(2301,plain,
    ! [SV382: $i] :
      ( ( ( relation @ SV382 )
        = $false )
      | ( ( ( in @ ( ordered_pair @ ( sK31_B @ SV382 ) @ ( sK32_SY282 @ SV382 ) ) @ SV382 )
          | ( SV382 = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2176]) ).

thf(2302,plain,
    ! [SV383: $i,SV456: $i] :
      ( ( ( ~ ( proper_subset @ SV456 @ SV383 ) )
        = $true )
      | ( ( ~ ( subset @ SV383 @ SV456 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2177]) ).

thf(2303,plain,
    ! [SV384: $i,SV484: $i,SV457: $i] :
      ( ( ~ ( disjoint @ SV457 @ SV484 )
        | ~ ( subset @ SV384 @ SV457 )
        | ( disjoint @ SV384 @ SV484 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2178]) ).

thf(2304,plain,
    ! [SV458: $i,SV386: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV386 ) @ ( singleton @ SV458 ) ) )
        = $true )
      | ( ( SV386 = SV458 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2179]) ).

thf(2305,plain,
    ! [SV485: $i,SV460: $i,SV388: $i] :
      ( ( ~ ( subset @ SV388 @ SV460 )
        | ~ ( subset @ SV485 @ SV460 )
        | ( subset @ ( set_union2 @ SV388 @ SV485 ) @ SV460 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2181]) ).

thf(2306,plain,
    ! [SV461: $i,SV389: $i] :
      ( ( ( ! [SY729: $i] :
              ( ( singleton @ SV389 )
             != ( unordered_pair @ SV461 @ SY729 ) ) )
        = $true )
      | ( ( SV389 = SV461 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2182]) ).

thf(2307,plain,
    ! [SV462: $i,SV390: $i] :
      ( ( ( ~ ( in @ SV390 @ SV462 ) )
        = $true )
      | ( ( subset @ SV390 @ ( union @ SV462 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2183]) ).

thf(2308,plain,
    ! [SV486: $i,SV463: $i,SV392: $i] :
      ( ( ( ( singleton @ SV392 )
         != ( unordered_pair @ SV463 @ SV486 ) )
        | ( SV463 = SV486 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2184]) ).

thf(2309,plain,
    ! [SV464: $i,SV393: $i] :
      ( ( ( ~ ( in @ SV393 @ SV464 ) )
        = $true )
      | ( ( ~ ( in @ SV464 @ SV393 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2185]) ).

thf(2310,plain,
    ! [SV394: $i] :
      ( ( ( empty @ SV394 )
        = $false )
      | ( ( relation @ SV394 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2186]) ).

thf(2311,plain,
    ! [SV397: $i] :
      ( ( ( relation @ SV397 )
        = $false )
      | ( ( ( relation_field @ SV397 )
          = ( set_union2 @ ( relation_dom @ SV397 ) @ ( relation_rng @ SV397 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2189]) ).

thf(2312,plain,
    ! [SV398: $i] :
      ( ( ( relation @ SV398 )
        = $false )
      | ( ( relation @ ( relation_inverse @ SV398 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2190]) ).

thf(2313,plain,
    ! [SV467: $i,SV399: $i] :
      ( ( ( ~ ( relation @ SV399 )
          | ~ ( relation @ SV467 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV399 @ SV467 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2191]) ).

thf(2314,plain,
    ! [SV468: $i,SV401: $i] :
      ( ( empty @ ( ordered_pair @ SV401 @ SV468 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2193]) ).

thf(2315,plain,
    ! [SV469: $i,SV402: $i] :
      ( ( ( ~ ( relation @ SV402 )
          | ~ ( relation @ SV469 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV402 @ SV469 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2194]) ).

thf(2316,plain,
    ! [SV487: $i,SV404: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV404 @ SV487 ) ) )
        = $true )
      | ( ( empty @ SV404 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2196]) ).

thf(2317,plain,
    ! [SV470: $i,SV405: $i] :
      ( ( empty @ ( unordered_pair @ SV405 @ SV470 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2197]) ).

thf(2318,plain,
    ! [SV406: $i,SV488: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV488 @ SV406 ) ) )
        = $true )
      | ( ( empty @ SV406 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2198]) ).

thf(2319,plain,
    ! [SV471: $i,SV407: $i] :
      ( ( ( ( empty @ SV407 )
          | ( empty @ SV471 ) )
        = $true )
      | ( ( ~ ( empty @ ( cartesian_product2 @ SV407 @ SV471 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2199]) ).

thf(2320,plain,
    ! [SV410: $i] :
      ( ( ( relation @ SV410 )
        = $false )
      | ( ( ( relation_inverse @ ( relation_inverse @ SV410 ) )
          = SV410 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2200]) ).

thf(2321,plain,
    ! [SV472: $i,SV412: $i] :
      ( ( ( ~ ( disjoint @ SV412 @ SV472 ) )
        = $true )
      | ( ( disjoint @ SV472 @ SV412 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2201]) ).

thf(2322,plain,
    ! [SV473: $i,SV413: $i] :
      ( ( ( ~ ( in @ SV413 @ SV473 ) )
        = $true )
      | ( ( element @ SV413 @ SV473 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2202]) ).

thf(2323,plain,
    ! [SV474: $i,SV414: $i] :
      ( ( ( ~ ( element @ SV414 @ SV474 ) )
        = $true )
      | ( ( ( empty @ SV474 )
          | ( in @ SV414 @ SV474 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2203]) ).

thf(2324,plain,
    ! [SV415: $i,SV489: $i,SV475: $i] :
      ( ( ~ ( element @ SV475 @ ( powerset @ SV489 ) )
        | ~ ( in @ SV415 @ SV475 )
        | ( element @ SV415 @ SV489 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2204]) ).

thf(2325,plain,
    ! [SV416: $i,SV490: $i,SV476: $i] :
      ( ( ~ ( element @ SV476 @ ( powerset @ SV490 ) )
        | ~ ( in @ SV416 @ SV476 )
        | ~ ( empty @ SV490 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2205]) ).

thf(2326,plain,
    ! [SV417: $i,SV477: $i] :
      ( ( ( ~ ( empty @ SV477 ) )
        = $true )
      | ( ( ~ ( in @ SV417 @ SV477 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2206]) ).

thf(2327,plain,
    ! [SV478: $i,SV418: $i] :
      ( ( ( ( SV418 = SV478 )
          | ~ ( empty @ SV418 ) )
        = $true )
      | ( ( ~ ( empty @ SV478 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2207]) ).

thf(2328,plain,
    ! [SV419: $i] :
      ( ( ~ ! [SY646: $i,SY647: $i] :
              ( ~ ( in @ SV419 @ SY647 )
              | ~ ( in @ SY646 @ SY647 )
              | ( subset @ ( unordered_pair @ SV419 @ SY646 ) @ SY647 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2208]) ).

thf(2329,plain,
    ! [SV419: $i] :
      ( ( ~ ~ ( ~ ! [SY648: $i,SY649: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV419 @ SY648 ) @ SY649 )
                    | ( in @ SV419 @ SY649 ) )
              | ~ ! [SY650: $i,SY651: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV419 @ SY650 ) @ SY651 )
                    | ( in @ SY650 @ SY651 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2208]) ).

thf(2330,plain,
    ! [SV420: $i] :
      ( ( ( relation @ SV420 )
        = $false )
      | ( ( ~ ( ~ ! [SY652: $i] :
                    ( ~ ( relation @ SY652 )
                    | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                            | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                            | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) ) )
                    | ( SY652
                      = ( relation_inverse @ SV420 ) ) )
              | ~ ! [SY653: $i] :
                    ( ~ ( relation @ SY653 )
                    | ( SY653
                     != ( relation_inverse @ SV420 ) )
                    | ~ ( ~ ! [SY654: $i,SY655: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY654 @ SY655 ) @ SY653 )
                              | ( in @ ( ordered_pair @ SY655 @ SY654 ) @ SV420 ) )
                        | ~ ! [SY656: $i,SY657: $i] :
                              ( ~ ( in @ ( ordered_pair @ SY657 @ SY656 ) @ SV420 )
                              | ( in @ ( ordered_pair @ SY656 @ SY657 ) @ SY653 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2209]) ).

thf(2331,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK33_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2210]) ).

thf(2332,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2211]) ).

thf(2333,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
                  | ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) )
              | ~ ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
                  | ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) ) ) )
        = $true )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2212]) ).

thf(2334,plain,
    ! [SV422: $i] :
      ( ( ~ ! [SY659: $i,SY660: $i] :
              ( ~ ( relation @ SY660 )
              | ~ ( in @ ( ordered_pair @ SV422 @ SY659 ) @ SY660 )
              | ( in @ SV422 @ ( relation_dom @ SY660 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2213]) ).

thf(2335,plain,
    ! [SV422: $i] :
      ( ( ~ ! [SY661: $i,SY662: $i] :
              ( ~ ( relation @ SY662 )
              | ~ ( in @ ( ordered_pair @ SV422 @ SY661 ) @ SY662 )
              | ( in @ SY661 @ ( relation_rng @ SY662 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2213]) ).

thf(2336,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2214]) ).

thf(2337,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)],[2215]) ).

thf(2338,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2216]) ).

thf(2339,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2217]) ).

thf(2340,plain,
    ! [SV423: $i] :
      ( ( ~ ! [SY663: $i,SY664: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                            | ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SV423 ) )
                        | ~ ( ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                            | ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY663 ) ) )
                  | ~ ( ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                      | ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SV423 )
                      | ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY663 ) ) )
              | ( SY664
                = ( set_union2 @ SV423 @ SY663 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2218]) ).

thf(2341,plain,
    ! [SV423: $i] :
      ( ( ~ ! [SY665: $i,SY666: $i] :
              ( ( SY666
               != ( set_union2 @ SV423 @ SY665 ) )
              | ~ ( ~ ! [SY667: $i] :
                        ( ~ ( in @ SY667 @ SY666 )
                        | ( in @ SY667 @ SV423 )
                        | ( in @ SY667 @ SY665 ) )
                  | ~ ~ ( ~ ! [SY668: $i] :
                              ( ~ ( in @ SY668 @ SV423 )
                              | ( in @ SY668 @ SY666 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY665 )
                              | ( in @ SX3 @ SY666 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2218]) ).

thf(2342,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2219]) ).

thf(2343,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)],[2220]) ).

thf(2344,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2221]) ).

thf(2345,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)],[2222]) ).

thf(2346,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK34_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2223]) ).

thf(2347,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2224]) ).

thf(2348,plain,
    ( ( empty @ sK9_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2225]) ).

thf(2349,plain,
    ( ( relation @ sK9_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2226]) ).

thf(2350,plain,
    ! [SV424: $i] :
      ( ( ~ ! [SY670: $i] :
              ( ~ ( subset @ SY670 @ ( sK35_B @ SV424 ) )
              | ( are_equipotent @ SY670 @ ( sK35_B @ SV424 ) )
              | ( in @ SY670 @ ( sK35_B @ SV424 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2227]) ).

thf(2351,plain,
    ! [SV424: $i] :
      ( ( ~ ~ ( ~ ! [SY671: $i] :
                    ( ~ ( in @ SY671 @ ( sK35_B @ SV424 ) )
                    | ( in @ ( powerset @ SY671 ) @ ( sK35_B @ SV424 ) ) )
              | ~ ~ ( ~ ! [SY672: $i,SY673: $i] :
                          ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
                          | ~ ( subset @ SY673 @ SY672 )
                          | ( in @ SY673 @ ( sK35_B @ SV424 ) ) )
                    | ~ ( in @ SV424 @ ( sK35_B @ SV424 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2227]) ).

thf(2352,plain,
    ! [SV425: $i] :
      ( ( ( relation @ SV425 )
        = $false )
      | ( ( ~ ( ~ ! [SY674: $i] :
                    ( ~ ( relation @ SY674 )
                    | ~ ( subset @ SV425 @ SY674 )
                    | ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SY674 ) ) )
              | ~ ! [SY675: $i] :
                    ( ~ ( relation @ SY675 )
                    | ~ ( subset @ SV425 @ SY675 )
                    | ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SY675 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2228]) ).

thf(2353,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2229]) ).

thf(2354,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2230]) ).

thf(2355,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK37_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2231]) ).

thf(2356,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2232]) ).

thf(2357,plain,
    ! [SV426: $i] :
      ( ( ~ ! [SY676: $i] :
              ( ~ ( subset @ SY676 @ ( sK1_B @ SV426 ) )
              | ( are_equipotent @ SY676 @ ( sK1_B @ SV426 ) )
              | ( in @ SY676 @ ( sK1_B @ SV426 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2233]) ).

thf(2358,plain,
    ! [SV426: $i] :
      ( ( ~ ~ ( ~ ! [SY677: $i] :
                    ( ~ ( ~ ! [SY678: $i] :
                              ( ~ ( subset @ SY678 @ SY677 )
                              | ( in @ SY678 @ ( sK2_SY267 @ SY677 @ SV426 ) ) )
                        | ~ ( in @ ( sK2_SY267 @ SY677 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
                    | ~ ( in @ SY677 @ ( sK1_B @ SV426 ) ) )
              | ~ ~ ( ~ ! [SY679: $i,SY680: $i] :
                          ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
                          | ~ ( subset @ SY680 @ SY679 )
                          | ( in @ SY680 @ ( sK1_B @ SV426 ) ) )
                    | ~ ( in @ SV426 @ ( sK1_B @ SV426 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2233]) ).

thf(2359,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2234]) ).

thf(2360,plain,
    ( ( relation @ empty_set )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2235]) ).

thf(2361,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK26_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK26_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2236]) ).

thf(2362,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)],[2237]) ).

thf(2363,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)],[2238]) ).

thf(2364,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)],[2239]) ).

thf(2365,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2240]) ).

thf(2366,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2241]) ).

thf(2367,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                    ( ( sK30_B @ SX0 )
                   != ( ordered_pair @ SX1 @ SX2 ) )
              | ~ ( in @ ( sK30_B @ SX0 ) @ SX0 ) )
          | ( relation @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2242]) ).

thf(2368,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ( SX1
                = ( ordered_pair @ ( sK28_C @ SX1 @ SX0 ) @ ( sK29_SY279 @ SX1 @ SX0 ) ) )
              | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2243]) ).

thf(2369,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2244]) ).

thf(2370,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2245]) ).

thf(2371,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2246]) ).

thf(2372,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)],[2247]) ).

thf(2373,plain,
    ( ( ~ ( empty @ sK6_A ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2248]) ).

thf(2374,plain,
    ( ( relation @ sK6_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2249]) ).

thf(2375,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2250]) ).

thf(2376,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2251]) ).

thf(2377,plain,
    ! [SV427: $i] :
      ( ( ( relation @ SV427 )
        = $false )
      | ( ( ~ ( ~ ! [SY681: $i] :
                    ( ~ ( ~ ( ! [SY682: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ SY682 ) @ SV427 )
                            | ~ ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ ( sK21_SY278 @ SY681 @ SV427 ) ) @ SV427 )
                            | ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) ) )
                    | ( SY681
                      = ( relation_dom @ SV427 ) ) )
              | ~ ! [SY683: $i] :
                    ( ( SY683
                     != ( relation_dom @ SV427 ) )
                    | ~ ( ~ ! [SY684: $i] :
                              ( ! [SY685: $i] :
                                  ~ ( in @ ( ordered_pair @ SY684 @ SY685 ) @ SV427 )
                              | ( in @ SY684 @ SY683 ) )
                        | ~ ! [SY686: $i] :
                              ( ~ ( in @ SY686 @ SY683 )
                              | ( in @ ( ordered_pair @ SY686 @ ( sK19_D @ SY686 @ SY683 @ SV427 ) ) @ SV427 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2252]) ).

thf(2378,plain,
    ! [SV428: $i] :
      ( ( ~ ! [SY687: $i,SY688: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SV428 )
                      | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY687 )
                      | ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SV428 )
                            | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) )
                        | ~ ( ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY687 )
                            | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) ) ) )
              | ( SY688
                = ( set_difference @ SV428 @ SY687 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2253]) ).

thf(2379,plain,
    ! [SV428: $i] :
      ( ( ~ ! [SY689: $i,SY690: $i] :
              ( ( SY690
               != ( set_difference @ SV428 @ SY689 ) )
              | ~ ( ~ ! [SY691: $i] :
                        ( ~ ( in @ SY691 @ SV428 )
                        | ( in @ SY691 @ SY689 )
                        | ( in @ SY691 @ SY690 ) )
                  | ~ ~ ( ~ ! [SY692: $i] :
                              ( ~ ( in @ SY692 @ SY690 )
                              | ( in @ SY692 @ SV428 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY690 )
                              | ~ ( in @ SX3 @ SY689 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2253]) ).

thf(2380,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_rng @ SX0 )
            = ( relation_dom @ ( relation_inverse @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2254]) ).

thf(2381,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ( ( relation_dom @ SX0 )
            = ( relation_rng @ ( relation_inverse @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2255]) ).

thf(2382,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2256]) ).

thf(2383,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2257]) ).

thf(2384,plain,
    ! [SV429: $i] :
      ( ( ~ ! [SY694: $i,SY695: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SV429 )
                      | ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY694 )
                      | ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SV429 )
                            | ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) )
                        | ~ ( ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY694 )
                            | ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) ) ) )
              | ( SY695
                = ( set_intersection2 @ SV429 @ SY694 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2258]) ).

thf(2385,plain,
    ! [SV429: $i] :
      ( ( ~ ! [SY696: $i,SY697: $i] :
              ( ( SY697
               != ( set_intersection2 @ SV429 @ SY696 ) )
              | ~ ( ~ ! [SY698: $i] :
                        ( ~ ( in @ SY698 @ SV429 )
                        | ~ ( in @ SY698 @ SY696 )
                        | ( in @ SY698 @ SY697 ) )
                  | ~ ~ ( ~ ! [SY699: $i] :
                              ( ~ ( in @ SY699 @ SY697 )
                              | ( in @ SY699 @ SV429 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY697 )
                              | ( in @ SX3 @ SY696 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2258]) ).

thf(2386,plain,
    ! [SV430: $i] :
      ( ( ( relation @ SV430 )
        = $false )
      | ( ( ~ ( ~ ! [SY701: $i] :
                    ( ~ ( ~ ( ! [SY702: $i] :
                                ~ ( in @ ( ordered_pair @ SY702 @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                            | ~ ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY701 @ SV430 ) @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                            | ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) ) )
                    | ( SY701
                      = ( relation_rng @ SV430 ) ) )
              | ~ ! [SY703: $i] :
                    ( ( SY703
                     != ( relation_rng @ SV430 ) )
                    | ~ ( ~ ! [SY704: $i] :
                              ( ! [SY705: $i] :
                                  ~ ( in @ ( ordered_pair @ SY705 @ SY704 ) @ SV430 )
                              | ( in @ SY704 @ SY703 ) )
                        | ~ ! [SY706: $i] :
                              ( ~ ( in @ SY706 @ SY703 )
                              | ( in @ ( ordered_pair @ ( sK12_D @ SY706 @ SY703 @ SV430 ) @ SY706 ) @ SV430 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2259]) ).

thf(2387,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_SY276 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK18_SY276 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2260]) ).

thf(2388,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)],[2261]) ).

thf(2389,plain,
    ! [SV431: $i] :
      ( ( ~ ( element @ ( sK5_B @ SV431 ) @ ( powerset @ SV431 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2262]) ).

thf(2390,plain,
    ! [SV431: $i] :
      ( ( ~ ( empty @ ( sK5_B @ SV431 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2262]) ).

thf(2391,plain,
    ! [SV432: $i,SV480: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV432 )
              | ~ ~ ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV480 ) ) )
        = $true )
      | ( ( element @ SV432 @ ( powerset @ SV480 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2263]) ).

thf(2392,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2264]) ).

thf(2393,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2265]) ).

thf(2394,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2266]) ).

thf(2395,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2267]) ).

thf(2396,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2268]) ).

thf(2397,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2269]) ).

thf(2398,plain,
    ! [SV433: $i] :
      ( ( ~ ! [SY708: $i,SY709: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                            | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                             != SV433 ) )
                        | ~ ( ~ ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                            | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                             != SY708 ) ) )
                  | ~ ( ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                      | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                        = SV433 )
                      | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                        = SY708 ) ) )
              | ( SY709
                = ( unordered_pair @ SV433 @ SY708 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2270]) ).

thf(2399,plain,
    ! [SV433: $i] :
      ( ( ~ ! [SY710: $i,SY711: $i] :
              ( ( SY711
               != ( unordered_pair @ SV433 @ SY710 ) )
              | ~ ( ~ ! [SY712: $i] :
                        ( ~ ( in @ SY712 @ SY711 )
                        | ( SY712 = SV433 )
                        | ( SY712 = SY710 ) )
                  | ~ ~ ( ~ ! [SY713: $i] :
                              ( ( SY713 != SV433 )
                              | ( in @ SY713 @ SY711 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY710 )
                              | ( in @ SX3 @ SY711 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2270]) ).

thf(2400,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                                | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX0 )
                                | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                            | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ SX2 @ ( sK38_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)],[2271]) ).

thf(2401,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)],[2272]) ).

thf(2402,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK27_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK27_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK27_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2273]) ).

thf(2403,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)],[2274]) ).

thf(2404,plain,
    ! [SV434: $i] :
      ( ( ~ ! [SY715: $i] :
              ( ~ ( subset @ SV434 @ SY715 )
              | ! [SY716: $i] : ( subset @ ( cartesian_product2 @ SV434 @ SY716 ) @ ( cartesian_product2 @ SY715 @ SY716 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2275]) ).

thf(2405,plain,
    ! [SV434: $i] :
      ( ( ~ ! [SY717: $i] :
              ( ~ ( subset @ SV434 @ SY717 )
              | ! [SY718: $i] : ( subset @ ( cartesian_product2 @ SY718 @ SV434 ) @ ( cartesian_product2 @ SY718 @ SY717 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2275]) ).

thf(2406,plain,
    ! [SV435: $i] :
      ( ( ( ~ ( element @ ( sK8_B @ SV435 ) @ ( powerset @ SV435 ) )
          | ~ ~ ( empty @ ( sK8_B @ SV435 ) ) )
        = $false )
      | ( ( empty @ SV435 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2276]) ).

thf(2407,plain,
    ! [SV350: $i] :
      ( ( ( relation @ SV350 )
        = $false )
      | ( ( empty @ SV350 )
        = $true )
      | ( ( ~ ( empty @ ( relation_dom @ SV350 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2278]) ).

thf(2408,plain,
    ! [SV351: $i] :
      ( ( ( relation @ SV351 )
        = $false )
      | ( ( empty @ SV351 )
        = $true )
      | ( ( ~ ( empty @ ( relation_rng @ SV351 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2279]) ).

thf(2409,plain,
    ! [SV436: $i,SV357: $i] :
      ( ( ( in @ SV357 @ SV436 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV357 ) @ SV436 )
          = SV436 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2281]) ).

thf(2410,plain,
    ! [SV437: $i,SV358: $i] :
      ( ( ( disjoint @ ( singleton @ SV358 ) @ SV437 )
        = $false )
      | ( ( ~ ( in @ SV358 @ SV437 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2282]) ).

thf(2411,plain,
    ! [SV360: $i,SV439: $i] :
      ( ( ( element @ SV439 @ ( powerset @ SV360 ) )
        = $false )
      | ( ( ! [SY719: $i] :
              ( ~ ( in @ SY719 @ SV439 )
              | ( in @ SY719 @ SV360 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2284]) ).

thf(2412,plain,
    ! [SV440: $i,SV361: $i] :
      ( ( ( subset @ SV361 @ SV440 )
        = $false )
      | ( ( ! [SY720: $i] :
              ( ( in @ SY720 @ SV361 )
              | ( subset @ SV361 @ ( set_difference @ SV440 @ ( singleton @ SY720 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2285]) ).

thf(2413,plain,
    ! [SV441: $i,SV362: $i] :
      ( ( ( in @ SV362 @ SV441 )
        = $false )
      | ( ( subset @ SV362 @ ( union @ SV441 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2286]) ).

thf(2414,plain,
    ! [SV491: $i,SV481: $i,SV442: $i,SV363: $i] :
      ( ( ~ ( subset @ SV363 @ SV442 )
        | ~ ( subset @ SV481 @ SV491 )
        | ( subset @ ( cartesian_product2 @ SV363 @ SV481 ) @ ( cartesian_product2 @ SV442 @ SV491 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2287]) ).

thf(2415,plain,
    ! [SV443: $i,SV364: $i] :
      ( ( ( subset @ SV364 @ SV443 )
        = $false )
      | ( ( ( set_union2 @ SV364 @ SV443 )
          = SV443 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2288]) ).

thf(2416,plain,
    ! [SV482: $i,SV445: $i,SV366: $i] :
      ( ( ( ~ ( subset @ SV366 @ SV445 )
          | ~ ( subset @ SV366 @ SV482 ) )
        = $true )
      | ( ( subset @ SV366 @ ( set_intersection2 @ SV445 @ SV482 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2289]) ).

thf(2417,plain,
    ! [SV483: $i,SV446: $i,SV367: $i] :
      ( ( ( ~ ( subset @ SV367 @ SV446 )
          | ~ ( subset @ SV446 @ SV483 ) )
        = $true )
      | ( ( subset @ SV367 @ SV483 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2290]) ).

thf(2418,plain,
    ! [SV447: $i,SV369: $i] :
      ( ( ( subset @ SV369 @ SV447 )
        = $false )
      | ( ( ! [SY725: $i] : ( subset @ ( set_intersection2 @ SV369 @ SY725 ) @ ( set_intersection2 @ SV447 @ SY725 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2292]) ).

thf(2419,plain,
    ! [SV448: $i,SV370: $i] :
      ( ( ( subset @ SV370 @ SV448 )
        = $false )
      | ( ( ( set_intersection2 @ SV370 @ SV448 )
          = SV370 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2293]) ).

thf(2420,plain,
    ! [SV449: $i,SV371: $i] :
      ( ( ( subset @ SV371 @ SV449 )
        = $false )
      | ( ( ! [SY726: $i] : ( subset @ ( set_difference @ SV371 @ SY726 ) @ ( set_difference @ SV449 @ SY726 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2294]) ).

thf(2421,plain,
    ! [SV375: $i,SV492: $i] :
      ( ( ( ~ ( relation @ SV492 )
          | ( subset @ ( relation_dom @ ( relation_composition @ SV375 @ SV492 ) ) @ ( relation_dom @ SV375 ) ) )
        = $true )
      | ( ( relation @ SV375 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2295]) ).

thf(2422,plain,
    ! [SV376: $i,SV493: $i] :
      ( ( ( ~ ( relation @ SV493 )
          | ( subset @ ( relation_rng @ ( relation_composition @ SV376 @ SV493 ) ) @ ( relation_rng @ SV493 ) ) )
        = $true )
      | ( ( relation @ SV376 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2296]) ).

thf(2423,plain,
    ! [SV453: $i,SV377: $i] :
      ( ( ( subset @ SV377 @ SV453 )
        = $false )
      | ( ( SV453
          = ( set_union2 @ SV377 @ ( set_difference @ SV453 @ SV377 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2297]) ).

thf(2424,plain,
    ! [SV378: $i,SV494: $i] :
      ( ( ( ~ ( relation @ SV494 )
          | ~ ( subset @ ( relation_rng @ SV378 ) @ ( relation_dom @ SV494 ) )
          | ( ( relation_dom @ ( relation_composition @ SV378 @ SV494 ) )
            = ( relation_dom @ SV378 ) ) )
        = $true )
      | ( ( relation @ SV378 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2298]) ).

thf(2425,plain,
    ! [SV454: $i,SV379: $i] :
      ( ( ( in @ SV379 @ SV454 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV379 ) @ SV454 )
          = SV454 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2299]) ).

thf(2426,plain,
    ! [SV380: $i,SV495: $i] :
      ( ( ( ~ ( relation @ SV495 )
          | ~ ( subset @ ( relation_dom @ SV380 ) @ ( relation_rng @ SV495 ) )
          | ( ( relation_rng @ ( relation_composition @ SV495 @ SV380 ) )
            = ( relation_rng @ SV380 ) ) )
        = $true )
      | ( ( relation @ SV380 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2300]) ).

thf(2427,plain,
    ! [SV382: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK31_B @ SV382 ) @ ( sK32_SY282 @ SV382 ) ) @ SV382 )
        = $true )
      | ( ( SV382 = empty_set )
        = $true )
      | ( ( relation @ SV382 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2301]) ).

thf(2428,plain,
    ! [SV383: $i,SV456: $i] :
      ( ( ( proper_subset @ SV456 @ SV383 )
        = $false )
      | ( ( ~ ( subset @ SV383 @ SV456 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2302]) ).

thf(2429,plain,
    ! [SV384: $i,SV484: $i,SV457: $i] :
      ( ( ( ~ ( disjoint @ SV457 @ SV484 )
          | ~ ( subset @ SV384 @ SV457 ) )
        = $true )
      | ( ( disjoint @ SV384 @ SV484 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2303]) ).

thf(2430,plain,
    ! [SV458: $i,SV386: $i] :
      ( ( ( subset @ ( singleton @ SV386 ) @ ( singleton @ SV458 ) )
        = $false )
      | ( ( SV386 = SV458 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2304]) ).

thf(2431,plain,
    ! [SV485: $i,SV460: $i,SV388: $i] :
      ( ( ( ~ ( subset @ SV388 @ SV460 )
          | ~ ( subset @ SV485 @ SV460 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV388 @ SV485 ) @ SV460 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2305]) ).

thf(2432,plain,
    ! [SV496: $i,SV461: $i,SV389: $i] :
      ( ( ( ( ( singleton @ SV389 )
           != ( unordered_pair @ SV461 @ SV496 ) ) )
        = $true )
      | ( ( SV389 = SV461 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2306]) ).

thf(2433,plain,
    ! [SV462: $i,SV390: $i] :
      ( ( ( in @ SV390 @ SV462 )
        = $false )
      | ( ( subset @ SV390 @ ( union @ SV462 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2307]) ).

thf(2434,plain,
    ! [SV486: $i,SV463: $i,SV392: $i] :
      ( ( ( ( ( singleton @ SV392 )
           != ( unordered_pair @ SV463 @ SV486 ) ) )
        = $true )
      | ( ( SV463 = SV486 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2308]) ).

thf(2435,plain,
    ! [SV464: $i,SV393: $i] :
      ( ( ( in @ SV393 @ SV464 )
        = $false )
      | ( ( ~ ( in @ SV464 @ SV393 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2309]) ).

thf(2436,plain,
    ! [SV467: $i,SV399: $i] :
      ( ( ( ~ ( relation @ SV399 ) )
        = $true )
      | ( ( ~ ( relation @ SV467 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV399 @ SV467 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2313]) ).

thf(2437,plain,
    ! [SV469: $i,SV402: $i] :
      ( ( ( ~ ( relation @ SV402 ) )
        = $true )
      | ( ( ~ ( relation @ SV469 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV402 @ SV469 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2315]) ).

thf(2438,plain,
    ! [SV487: $i,SV404: $i] :
      ( ( ( empty @ ( set_union2 @ SV404 @ SV487 ) )
        = $false )
      | ( ( empty @ SV404 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2316]) ).

thf(2439,plain,
    ! [SV406: $i,SV488: $i] :
      ( ( ( empty @ ( set_union2 @ SV488 @ SV406 ) )
        = $false )
      | ( ( empty @ SV406 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2318]) ).

thf(2440,plain,
    ! [SV471: $i,SV407: $i] :
      ( ( ( empty @ SV407 )
        = $true )
      | ( ( empty @ SV471 )
        = $true )
      | ( ( ~ ( empty @ ( cartesian_product2 @ SV407 @ SV471 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2319]) ).

thf(2441,plain,
    ! [SV472: $i,SV412: $i] :
      ( ( ( disjoint @ SV412 @ SV472 )
        = $false )
      | ( ( disjoint @ SV472 @ SV412 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2321]) ).

thf(2442,plain,
    ! [SV473: $i,SV413: $i] :
      ( ( ( in @ SV413 @ SV473 )
        = $false )
      | ( ( element @ SV413 @ SV473 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2322]) ).

thf(2443,plain,
    ! [SV474: $i,SV414: $i] :
      ( ( ( element @ SV414 @ SV474 )
        = $false )
      | ( ( ( empty @ SV474 )
          | ( in @ SV414 @ SV474 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2323]) ).

thf(2444,plain,
    ! [SV415: $i,SV489: $i,SV475: $i] :
      ( ( ( ~ ( element @ SV475 @ ( powerset @ SV489 ) )
          | ~ ( in @ SV415 @ SV475 ) )
        = $true )
      | ( ( element @ SV415 @ SV489 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2324]) ).

thf(2445,plain,
    ! [SV416: $i,SV490: $i,SV476: $i] :
      ( ( ( ~ ( element @ SV476 @ ( powerset @ SV490 ) )
          | ~ ( in @ SV416 @ SV476 ) )
        = $true )
      | ( ( ~ ( empty @ SV490 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2325]) ).

thf(2446,plain,
    ! [SV417: $i,SV477: $i] :
      ( ( ( empty @ SV477 )
        = $false )
      | ( ( ~ ( in @ SV417 @ SV477 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2326]) ).

thf(2447,plain,
    ! [SV478: $i,SV418: $i] :
      ( ( ( SV418 = SV478 )
        = $true )
      | ( ( ~ ( empty @ SV418 ) )
        = $true )
      | ( ( ~ ( empty @ SV478 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2327]) ).

thf(2448,plain,
    ! [SV419: $i] :
      ( ( ! [SY646: $i,SY647: $i] :
            ( ~ ( in @ SV419 @ SY647 )
            | ~ ( in @ SY646 @ SY647 )
            | ( subset @ ( unordered_pair @ SV419 @ SY646 ) @ SY647 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2328]) ).

thf(2449,plain,
    ! [SV419: $i] :
      ( ( ~ ( ~ ! [SY648: $i,SY649: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV419 @ SY648 ) @ SY649 )
                  | ( in @ SV419 @ SY649 ) )
            | ~ ! [SY650: $i,SY651: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV419 @ SY650 ) @ SY651 )
                  | ( in @ SY650 @ SY651 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2329]) ).

thf(2450,plain,
    ! [SV420: $i] :
      ( ( ( ~ ! [SY652: $i] :
                ( ~ ( relation @ SY652 )
                | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                        | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                        | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) ) )
                | ( SY652
                  = ( relation_inverse @ SV420 ) ) )
          | ~ ! [SY653: $i] :
                ( ~ ( relation @ SY653 )
                | ( SY653
                 != ( relation_inverse @ SV420 ) )
                | ~ ( ~ ! [SY654: $i,SY655: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY654 @ SY655 ) @ SY653 )
                          | ( in @ ( ordered_pair @ SY655 @ SY654 ) @ SV420 ) )
                    | ~ ! [SY656: $i,SY657: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY657 @ SY656 ) @ SV420 )
                          | ( in @ ( ordered_pair @ SY656 @ SY657 ) @ SY653 ) ) ) ) )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2330]) ).

thf(2451,plain,
    ! [SV497: $i] :
      ( ( ! [SY734: $i] :
            ( ( disjoint @ SV497 @ SY734 )
            | ( in @ ( sK33_C @ SY734 @ SV497 ) @ ( set_intersection2 @ SV497 @ SY734 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2331]) ).

thf(2452,plain,
    ! [SV498: $i] :
      ( ( ! [SY735: $i] :
            ( ! [SY736: $i] :
                ~ ( in @ SY736 @ ( set_intersection2 @ SV498 @ SY735 ) )
            | ~ ( disjoint @ SV498 @ SY735 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2332]) ).

thf(2453,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
              | ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) )
          | ~ ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
              | ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) ) )
        = $false )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2333]) ).

thf(2454,plain,
    ! [SV422: $i] :
      ( ( ! [SY659: $i,SY660: $i] :
            ( ~ ( relation @ SY660 )
            | ~ ( in @ ( ordered_pair @ SV422 @ SY659 ) @ SY660 )
            | ( in @ SV422 @ ( relation_dom @ SY660 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2334]) ).

thf(2455,plain,
    ! [SV422: $i] :
      ( ( ! [SY661: $i,SY662: $i] :
            ( ~ ( relation @ SY662 )
            | ~ ( in @ ( ordered_pair @ SV422 @ SY661 ) @ SY662 )
            | ( in @ SY661 @ ( relation_rng @ SY662 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2335]) ).

thf(2456,plain,
    ! [SV499: $i] :
      ( ( ! [SY737: $i] :
            ( ~ ( subset @ SV499 @ ( singleton @ SY737 ) )
            | ( SV499 = empty_set )
            | ( SV499
              = ( singleton @ SY737 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2336]) ).

thf(2457,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)],[2337]) ).

thf(2458,plain,
    ! [SV500: $i] :
      ( ( ! [SY738: $i] :
            ( ( ( set_difference @ SV500 @ SY738 )
             != SV500 )
            | ( disjoint @ SV500 @ SY738 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2338]) ).

thf(2459,plain,
    ! [SV501: $i] :
      ( ( ! [SY739: $i] :
            ( ~ ( disjoint @ SV501 @ SY739 )
            | ( ( set_difference @ SV501 @ SY739 )
              = SV501 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2339]) ).

thf(2460,plain,
    ! [SV423: $i] :
      ( ( ! [SY663: $i,SY664: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                          | ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SV423 ) )
                      | ~ ( ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                          | ~ ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY663 ) ) )
                | ~ ( ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY664 )
                    | ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SV423 )
                    | ( in @ ( sK24_D @ SY664 @ SY663 @ SV423 ) @ SY663 ) ) )
            | ( SY664
              = ( set_union2 @ SV423 @ SY663 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2340]) ).

thf(2461,plain,
    ! [SV423: $i] :
      ( ( ! [SY665: $i,SY666: $i] :
            ( ( SY666
             != ( set_union2 @ SV423 @ SY665 ) )
            | ~ ( ~ ! [SY667: $i] :
                      ( ~ ( in @ SY667 @ SY666 )
                      | ( in @ SY667 @ SV423 )
                      | ( in @ SY667 @ SY665 ) )
                | ~ ~ ( ~ ! [SY668: $i] :
                            ( ~ ( in @ SY668 @ SV423 )
                            | ( in @ SY668 @ SY666 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY665 )
                            | ( in @ SX3 @ SY666 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2341]) ).

thf(2462,plain,
    ! [SV502: $i] :
      ( ( ! [SY740: $i] :
            ( ~ ( subset @ SV502 @ ( singleton @ SY740 ) )
            | ( SV502 = empty_set )
            | ( SV502
              = ( singleton @ SY740 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2342]) ).

thf(2463,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)],[2343]) ).

thf(2464,plain,
    ! [SV503: $i] :
      ( ( ! [SY741: $i] :
            ( ( SV503 = SY741 )
            | ~ ( subset @ SV503 @ SY741 )
            | ( proper_subset @ SV503 @ SY741 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2344]) ).

thf(2465,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)],[2345]) ).

thf(2466,plain,
    ! [SV504: $i] :
      ( ( ! [SY742: $i] :
            ( ( disjoint @ SV504 @ SY742 )
            | ~ ( ~ ( in @ ( sK34_C @ SY742 @ SV504 ) @ SV504 )
                | ~ ( in @ ( sK34_C @ SY742 @ SV504 ) @ SY742 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2346]) ).

thf(2467,plain,
    ! [SV505: $i] :
      ( ( ! [SY743: $i] :
            ( ! [SY744: $i] :
                ( ~ ( in @ SY744 @ SV505 )
                | ~ ( in @ SY744 @ SY743 ) )
            | ~ ( disjoint @ SV505 @ SY743 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2347]) ).

thf(2468,plain,
    ! [SV424: $i] :
      ( ( ! [SY670: $i] :
            ( ~ ( subset @ SY670 @ ( sK35_B @ SV424 ) )
            | ( are_equipotent @ SY670 @ ( sK35_B @ SV424 ) )
            | ( in @ SY670 @ ( sK35_B @ SV424 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2350]) ).

thf(2469,plain,
    ! [SV424: $i] :
      ( ( ~ ( ~ ! [SY671: $i] :
                  ( ~ ( in @ SY671 @ ( sK35_B @ SV424 ) )
                  | ( in @ ( powerset @ SY671 ) @ ( sK35_B @ SV424 ) ) )
            | ~ ~ ( ~ ! [SY672: $i,SY673: $i] :
                        ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
                        | ~ ( subset @ SY673 @ SY672 )
                        | ( in @ SY673 @ ( sK35_B @ SV424 ) ) )
                  | ~ ( in @ SV424 @ ( sK35_B @ SV424 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2351]) ).

thf(2470,plain,
    ! [SV425: $i] :
      ( ( ( ~ ! [SY674: $i] :
                ( ~ ( relation @ SY674 )
                | ~ ( subset @ SV425 @ SY674 )
                | ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SY674 ) ) )
          | ~ ! [SY675: $i] :
                ( ~ ( relation @ SY675 )
                | ~ ( subset @ SV425 @ SY675 )
                | ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SY675 ) ) ) )
        = $false )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2352]) ).

thf(2471,plain,
    ! [SV506: $i] :
      ( ( ! [SY745: $i] :
            ( ~ ( in @ SV506 @ SY745 )
            | ( subset @ ( singleton @ SV506 ) @ SY745 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2353]) ).

thf(2472,plain,
    ! [SV507: $i] :
      ( ( ! [SY746: $i] :
            ( ~ ( subset @ ( singleton @ SV507 ) @ SY746 )
            | ( in @ SV507 @ SY746 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2354]) ).

thf(2473,plain,
    ! [SV508: $i] :
      ( ( ( in @ ( sK37_B @ SV508 ) @ SV508 )
        | ( SV508 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2355]) ).

thf(2474,plain,
    ! [SV509: $i] :
      ( ( ( SV509 != empty_set )
        | ! [SY747: $i] :
            ~ ( in @ SY747 @ SV509 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2356]) ).

thf(2475,plain,
    ! [SV426: $i] :
      ( ( ! [SY676: $i] :
            ( ~ ( subset @ SY676 @ ( sK1_B @ SV426 ) )
            | ( are_equipotent @ SY676 @ ( sK1_B @ SV426 ) )
            | ( in @ SY676 @ ( sK1_B @ SV426 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2357]) ).

thf(2476,plain,
    ! [SV426: $i] :
      ( ( ~ ( ~ ! [SY677: $i] :
                  ( ~ ( ~ ! [SY678: $i] :
                            ( ~ ( subset @ SY678 @ SY677 )
                            | ( in @ SY678 @ ( sK2_SY267 @ SY677 @ SV426 ) ) )
                      | ~ ( in @ ( sK2_SY267 @ SY677 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
                  | ~ ( in @ SY677 @ ( sK1_B @ SV426 ) ) )
            | ~ ~ ( ~ ! [SY679: $i,SY680: $i] :
                        ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
                        | ~ ( subset @ SY680 @ SY679 )
                        | ( in @ SY680 @ ( sK1_B @ SV426 ) ) )
                  | ~ ( in @ SV426 @ ( sK1_B @ SV426 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2358]) ).

thf(2477,plain,
    ! [SV510: $i] :
      ( ( ! [SY748: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SY748 @ SV510 ) @ SY748 )
                    | ~ ( subset @ ( sK26_C @ SY748 @ SV510 ) @ SV510 ) )
                | ~ ( ( in @ ( sK26_C @ SY748 @ SV510 ) @ SY748 )
                    | ( subset @ ( sK26_C @ SY748 @ SV510 ) @ SV510 ) ) )
            | ( SY748
              = ( powerset @ SV510 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2361]) ).

thf(2478,plain,
    ! [SV511: $i] :
      ( ( ! [SY749: $i] :
            ( ( SY749
             != ( powerset @ SV511 ) )
            | ~ ( ~ ! [SY750: $i] :
                      ( ~ ( in @ SY750 @ SY749 )
                      | ( subset @ SY750 @ SV511 ) )
                | ~ ! [SY751: $i] :
                      ( ~ ( subset @ SY751 @ SV511 )
                      | ( in @ SY751 @ SY749 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2362]) ).

thf(2479,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)],[2363]) ).

thf(2480,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)],[2364]) ).

thf(2481,plain,
    ! [SV512: $i] :
      ( ( ! [SY752: $i] :
            ( ( ( set_difference @ SV512 @ ( singleton @ SY752 ) )
             != SV512 )
            | ~ ( in @ SY752 @ SV512 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2365]) ).

thf(2482,plain,
    ! [SV513: $i] :
      ( ( ! [SY753: $i] :
            ( ( in @ SY753 @ SV513 )
            | ( ( set_difference @ SV513 @ ( singleton @ SY753 ) )
              = SV513 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2366]) ).

thf(2483,plain,
    ! [SV514: $i] :
      ( ( ~ ( ~ ! [SY754: $i,SY755: $i] :
                  ( ( sK30_B @ SV514 )
                 != ( ordered_pair @ SY754 @ SY755 ) )
            | ~ ( in @ ( sK30_B @ SV514 ) @ SV514 ) )
        | ( relation @ SV514 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2367]) ).

thf(2484,plain,
    ! [SV515: $i] :
      ( ( ~ ( relation @ SV515 )
        | ! [SY756: $i] :
            ( ( SY756
              = ( ordered_pair @ ( sK28_C @ SY756 @ SV515 ) @ ( sK29_SY279 @ SY756 @ SV515 ) ) )
            | ~ ( in @ SY756 @ SV515 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2368]) ).

thf(2485,plain,
    ! [SV516: $i] :
      ( ( ! [SY757: $i] :
            ( ( ( set_intersection2 @ SV516 @ SY757 )
             != empty_set )
            | ( disjoint @ SV516 @ SY757 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2369]) ).

thf(2486,plain,
    ! [SV517: $i] :
      ( ( ! [SY758: $i] :
            ( ~ ( disjoint @ SV517 @ SY758 )
            | ( ( set_intersection2 @ SV517 @ SY758 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2370]) ).

thf(2487,plain,
    ! [SV518: $i] :
      ( ( ! [SY759: $i] :
            ( ~ ( subset @ SV518 @ SY759 )
            | ~ ( subset @ SY759 @ SV518 )
            | ( SV518 = SY759 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2371]) ).

thf(2488,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)],[2372]) ).

thf(2489,plain,
    ( ( empty @ sK6_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2373]) ).

thf(2490,plain,
    ! [SV519: $i] :
      ( ( ! [SY760: $i] :
            ( ~ ( element @ SV519 @ ( powerset @ SY760 ) )
            | ( subset @ SV519 @ SY760 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2375]) ).

thf(2491,plain,
    ! [SV520: $i] :
      ( ( ! [SY761: $i] :
            ( ~ ( subset @ SV520 @ SY761 )
            | ( element @ SV520 @ ( powerset @ SY761 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2376]) ).

thf(2492,plain,
    ! [SV427: $i] :
      ( ( ( ~ ! [SY681: $i] :
                ( ~ ( ~ ( ! [SY682: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ SY682 ) @ SV427 )
                        | ~ ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ ( sK21_SY278 @ SY681 @ SV427 ) ) @ SV427 )
                        | ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) ) )
                | ( SY681
                  = ( relation_dom @ SV427 ) ) )
          | ~ ! [SY683: $i] :
                ( ( SY683
                 != ( relation_dom @ SV427 ) )
                | ~ ( ~ ! [SY684: $i] :
                          ( ! [SY685: $i] :
                              ~ ( in @ ( ordered_pair @ SY684 @ SY685 ) @ SV427 )
                          | ( in @ SY684 @ SY683 ) )
                    | ~ ! [SY686: $i] :
                          ( ~ ( in @ SY686 @ SY683 )
                          | ( in @ ( ordered_pair @ SY686 @ ( sK19_D @ SY686 @ SY683 @ SV427 ) ) @ SV427 ) ) ) ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2377]) ).

thf(2493,plain,
    ! [SV428: $i] :
      ( ( ! [SY687: $i,SY688: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SV428 )
                    | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY687 )
                    | ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) )
                | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SV428 )
                          | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) )
                      | ~ ( ~ ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY687 )
                          | ( in @ ( sK15_D @ SY688 @ SY687 @ SV428 ) @ SY688 ) ) ) )
            | ( SY688
              = ( set_difference @ SV428 @ SY687 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2378]) ).

thf(2494,plain,
    ! [SV428: $i] :
      ( ( ! [SY689: $i,SY690: $i] :
            ( ( SY690
             != ( set_difference @ SV428 @ SY689 ) )
            | ~ ( ~ ! [SY691: $i] :
                      ( ~ ( in @ SY691 @ SV428 )
                      | ( in @ SY691 @ SY689 )
                      | ( in @ SY691 @ SY690 ) )
                | ~ ~ ( ~ ! [SY692: $i] :
                            ( ~ ( in @ SY692 @ SY690 )
                            | ( in @ SY692 @ SV428 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY690 )
                            | ~ ( in @ SX3 @ SY689 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2379]) ).

thf(2495,plain,
    ! [SV521: $i] :
      ( ( ~ ( relation @ SV521 )
        | ( ( relation_rng @ SV521 )
          = ( relation_dom @ ( relation_inverse @ SV521 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2380]) ).

thf(2496,plain,
    ! [SV522: $i] :
      ( ( ~ ( relation @ SV522 )
        | ( ( relation_dom @ SV522 )
          = ( relation_rng @ ( relation_inverse @ SV522 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2381]) ).

thf(2497,plain,
    ! [SV523: $i] :
      ( ( ! [SY762: $i] :
            ( ~ ( in @ SV523 @ SY762 )
            | ( subset @ ( singleton @ SV523 ) @ SY762 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2382]) ).

thf(2498,plain,
    ! [SV524: $i] :
      ( ( ! [SY763: $i] :
            ( ~ ( subset @ ( singleton @ SV524 ) @ SY763 )
            | ( in @ SV524 @ SY763 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2383]) ).

thf(2499,plain,
    ! [SV429: $i] :
      ( ( ! [SY694: $i,SY695: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SV429 )
                    | ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY694 )
                    | ~ ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) )
                | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SV429 )
                          | ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) )
                      | ~ ( ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY694 )
                          | ( in @ ( sK22_D @ SY695 @ SY694 @ SV429 ) @ SY695 ) ) ) )
            | ( SY695
              = ( set_intersection2 @ SV429 @ SY694 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2384]) ).

thf(2500,plain,
    ! [SV429: $i] :
      ( ( ! [SY696: $i,SY697: $i] :
            ( ( SY697
             != ( set_intersection2 @ SV429 @ SY696 ) )
            | ~ ( ~ ! [SY698: $i] :
                      ( ~ ( in @ SY698 @ SV429 )
                      | ~ ( in @ SY698 @ SY696 )
                      | ( in @ SY698 @ SY697 ) )
                | ~ ~ ( ~ ! [SY699: $i] :
                            ( ~ ( in @ SY699 @ SY697 )
                            | ( in @ SY699 @ SV429 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY697 )
                            | ( in @ SX3 @ SY696 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2385]) ).

thf(2501,plain,
    ! [SV430: $i] :
      ( ( ( ~ ! [SY701: $i] :
                ( ~ ( ~ ( ! [SY702: $i] :
                            ~ ( in @ ( ordered_pair @ SY702 @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                        | ~ ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY701 @ SV430 ) @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                        | ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) ) )
                | ( SY701
                  = ( relation_rng @ SV430 ) ) )
          | ~ ! [SY703: $i] :
                ( ( SY703
                 != ( relation_rng @ SV430 ) )
                | ~ ( ~ ! [SY704: $i] :
                          ( ! [SY705: $i] :
                              ~ ( in @ ( ordered_pair @ SY705 @ SY704 ) @ SV430 )
                          | ( in @ SY704 @ SY703 ) )
                    | ~ ! [SY706: $i] :
                          ( ~ ( in @ SY706 @ SY703 )
                          | ( in @ ( ordered_pair @ ( sK12_D @ SY706 @ SY703 @ SV430 ) @ SY706 ) @ SV430 ) ) ) ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2386]) ).

thf(2502,plain,
    ! [SV525: $i] :
      ( ( ! [SY764: $i] :
            ( ~ ( ~ ( ! [SY765: $i] :
                        ( ~ ( in @ ( sK17_C @ SY764 @ SV525 ) @ SY765 )
                        | ~ ( in @ SY765 @ SV525 ) )
                    | ~ ( in @ ( sK17_C @ SY764 @ SV525 ) @ SY764 ) )
                | ~ ( ~ ( ~ ( in @ ( sK17_C @ SY764 @ SV525 ) @ ( sK18_SY276 @ SY764 @ SV525 ) )
                        | ~ ( in @ ( sK18_SY276 @ SY764 @ SV525 ) @ SV525 ) )
                    | ( in @ ( sK17_C @ SY764 @ SV525 ) @ SY764 ) ) )
            | ( SY764
              = ( union @ SV525 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2387]) ).

thf(2503,plain,
    ! [SV526: $i] :
      ( ( ! [SY766: $i] :
            ( ( SY766
             != ( union @ SV526 ) )
            | ~ ( ~ ! [SY767: $i] :
                      ( ! [SY768: $i] :
                          ( ~ ( in @ SY767 @ SY768 )
                          | ~ ( in @ SY768 @ SV526 ) )
                      | ( in @ SY767 @ SY766 ) )
                | ~ ! [SY769: $i] :
                      ( ~ ( in @ SY769 @ SY766 )
                      | ~ ( ~ ( in @ SY769 @ ( sK16_D @ SY769 @ SY766 @ SV526 ) )
                          | ~ ( in @ ( sK16_D @ SY769 @ SY766 @ SV526 ) @ SV526 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2388]) ).

thf(2504,plain,
    ! [SV431: $i] :
      ( ( element @ ( sK5_B @ SV431 ) @ ( powerset @ SV431 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2389]) ).

thf(2505,plain,
    ! [SV431: $i] :
      ( ( empty @ ( sK5_B @ SV431 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2390]) ).

thf(2506,plain,
    ! [SV432: $i,SV480: $i] :
      ( ( ( ~ ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV432 )
          | ~ ~ ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV480 ) )
        = $false )
      | ( ( element @ SV432 @ ( powerset @ SV480 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2391]) ).

thf(2507,plain,
    ! [SV527: $i] :
      ( ( ! [SY770: $i] :
            ( ( ( set_difference @ SV527 @ SY770 )
             != empty_set )
            | ( subset @ SV527 @ SY770 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2392]) ).

thf(2508,plain,
    ! [SV528: $i] :
      ( ( ! [SY771: $i] :
            ( ~ ( subset @ SV528 @ SY771 )
            | ( ( set_difference @ SV528 @ SY771 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2393]) ).

thf(2509,plain,
    ! [SV529: $i] :
      ( ( ! [SY772: $i] :
            ( ~ ( ~ ( in @ ( sK23_C @ SY772 @ SV529 ) @ SV529 )
                | ~ ~ ( in @ ( sK23_C @ SY772 @ SV529 ) @ SY772 ) )
            | ( subset @ SV529 @ SY772 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2394]) ).

thf(2510,plain,
    ! [SV530: $i] :
      ( ( ! [SY773: $i] :
            ( ~ ( subset @ SV530 @ SY773 )
            | ! [SY774: $i] :
                ( ~ ( in @ SY774 @ SV530 )
                | ( in @ SY774 @ SY773 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2395]) ).

thf(2511,plain,
    ! [SV531: $i] :
      ( ( ! [SY775: $i] :
            ( ( ( set_difference @ SV531 @ SY775 )
             != empty_set )
            | ( subset @ SV531 @ SY775 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2396]) ).

thf(2512,plain,
    ! [SV532: $i] :
      ( ( ! [SY776: $i] :
            ( ~ ( subset @ SV532 @ SY776 )
            | ( ( set_difference @ SV532 @ SY776 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2397]) ).

thf(2513,plain,
    ! [SV433: $i] :
      ( ( ! [SY708: $i,SY709: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                          | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                           != SV433 ) )
                      | ~ ( ~ ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                          | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                           != SY708 ) ) )
                | ~ ( ( in @ ( sK25_D @ SY709 @ SY708 @ SV433 ) @ SY709 )
                    | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                      = SV433 )
                    | ( ( sK25_D @ SY709 @ SY708 @ SV433 )
                      = SY708 ) ) )
            | ( SY709
              = ( unordered_pair @ SV433 @ SY708 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2398]) ).

thf(2514,plain,
    ! [SV433: $i] :
      ( ( ! [SY710: $i,SY711: $i] :
            ( ( SY711
             != ( unordered_pair @ SV433 @ SY710 ) )
            | ~ ( ~ ! [SY712: $i] :
                      ( ~ ( in @ SY712 @ SY711 )
                      | ( SY712 = SV433 )
                      | ( SY712 = SY710 ) )
                | ~ ~ ( ~ ! [SY713: $i] :
                            ( ( SY713 != SV433 )
                            | ( in @ SY713 @ SY711 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY710 )
                            | ( in @ SX3 @ SY711 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2399]) ).

thf(2515,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK38_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)],[2400]) ).

thf(2516,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)],[2401]) ).

thf(2517,plain,
    ! [SV533: $i] :
      ( ( ! [SY777: $i] :
            ( ~ ( ~ ( ( ( sK27_C @ SY777 @ SV533 )
                     != SV533 )
                    | ~ ( in @ ( sK27_C @ SY777 @ SV533 ) @ SY777 ) )
                | ~ ( ( ( sK27_C @ SY777 @ SV533 )
                      = SV533 )
                    | ( in @ ( sK27_C @ SY777 @ SV533 ) @ SY777 ) ) )
            | ( SY777
              = ( singleton @ SV533 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2402]) ).

thf(2518,plain,
    ! [SV534: $i] :
      ( ( ! [SY778: $i] :
            ( ( SY778
             != ( singleton @ SV534 ) )
            | ~ ( ~ ! [SY779: $i] :
                      ( ( SY779 != SV534 )
                      | ( in @ SY779 @ SY778 ) )
                | ~ ! [SY780: $i] :
                      ( ~ ( in @ SY780 @ SY778 )
                      | ( SY780 = SV534 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2403]) ).

thf(2519,plain,
    ! [SV434: $i] :
      ( ( ! [SY715: $i] :
            ( ~ ( subset @ SV434 @ SY715 )
            | ! [SY716: $i] : ( subset @ ( cartesian_product2 @ SV434 @ SY716 ) @ ( cartesian_product2 @ SY715 @ SY716 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2404]) ).

thf(2520,plain,
    ! [SV434: $i] :
      ( ( ! [SY717: $i] :
            ( ~ ( subset @ SV434 @ SY717 )
            | ! [SY718: $i] : ( subset @ ( cartesian_product2 @ SY718 @ SV434 ) @ ( cartesian_product2 @ SY718 @ SY717 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2405]) ).

thf(2521,plain,
    ! [SV435: $i] :
      ( ( ( ~ ( element @ ( sK8_B @ SV435 ) @ ( powerset @ SV435 ) ) )
        = $false )
      | ( ( empty @ SV435 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2406]) ).

thf(2522,plain,
    ! [SV435: $i] :
      ( ( ( ~ ~ ( empty @ ( sK8_B @ SV435 ) ) )
        = $false )
      | ( ( empty @ SV435 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2406]) ).

thf(2523,plain,
    ! [SV350: $i] :
      ( ( ( empty @ ( relation_dom @ SV350 ) )
        = $false )
      | ( ( empty @ SV350 )
        = $true )
      | ( ( relation @ SV350 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2407]) ).

thf(2524,plain,
    ! [SV351: $i] :
      ( ( ( empty @ ( relation_rng @ SV351 ) )
        = $false )
      | ( ( empty @ SV351 )
        = $true )
      | ( ( relation @ SV351 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2408]) ).

thf(2525,plain,
    ! [SV437: $i,SV358: $i] :
      ( ( ( in @ SV358 @ SV437 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV358 ) @ SV437 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2410]) ).

thf(2526,plain,
    ! [SV360: $i,SV439: $i,SV535: $i] :
      ( ( ( ~ ( in @ SV535 @ SV439 )
          | ( in @ SV535 @ SV360 ) )
        = $true )
      | ( ( element @ SV439 @ ( powerset @ SV360 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2411]) ).

thf(2527,plain,
    ! [SV440: $i,SV361: $i,SV536: $i] :
      ( ( ( ( in @ SV536 @ SV361 )
          | ( subset @ SV361 @ ( set_difference @ SV440 @ ( singleton @ SV536 ) ) ) )
        = $true )
      | ( ( subset @ SV361 @ SV440 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2412]) ).

thf(2528,plain,
    ! [SV491: $i,SV481: $i,SV442: $i,SV363: $i] :
      ( ( ( ~ ( subset @ SV363 @ SV442 )
          | ~ ( subset @ SV481 @ SV491 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV363 @ SV481 ) @ ( cartesian_product2 @ SV442 @ SV491 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2414]) ).

thf(2529,plain,
    ! [SV482: $i,SV445: $i,SV366: $i] :
      ( ( ( ~ ( subset @ SV366 @ SV445 ) )
        = $true )
      | ( ( ~ ( subset @ SV366 @ SV482 ) )
        = $true )
      | ( ( subset @ SV366 @ ( set_intersection2 @ SV445 @ SV482 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2416]) ).

thf(2530,plain,
    ! [SV483: $i,SV446: $i,SV367: $i] :
      ( ( ( ~ ( subset @ SV367 @ SV446 ) )
        = $true )
      | ( ( ~ ( subset @ SV446 @ SV483 ) )
        = $true )
      | ( ( subset @ SV367 @ SV483 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2417]) ).

thf(2531,plain,
    ! [SV447: $i,SV537: $i,SV369: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV369 @ SV537 ) @ ( set_intersection2 @ SV447 @ SV537 ) )
        = $true )
      | ( ( subset @ SV369 @ SV447 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2418]) ).

thf(2532,plain,
    ! [SV449: $i,SV538: $i,SV371: $i] :
      ( ( ( subset @ ( set_difference @ SV371 @ SV538 ) @ ( set_difference @ SV449 @ SV538 ) )
        = $true )
      | ( ( subset @ SV371 @ SV449 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2420]) ).

thf(2533,plain,
    ! [SV375: $i,SV492: $i] :
      ( ( ( ~ ( relation @ SV492 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV375 @ SV492 ) ) @ ( relation_dom @ SV375 ) )
        = $true )
      | ( ( relation @ SV375 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2421]) ).

thf(2534,plain,
    ! [SV376: $i,SV493: $i] :
      ( ( ( ~ ( relation @ SV493 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV376 @ SV493 ) ) @ ( relation_rng @ SV493 ) )
        = $true )
      | ( ( relation @ SV376 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2422]) ).

thf(2535,plain,
    ! [SV378: $i,SV494: $i] :
      ( ( ( ~ ( relation @ SV494 ) )
        = $true )
      | ( ( ~ ( subset @ ( relation_rng @ SV378 ) @ ( relation_dom @ SV494 ) )
          | ( ( relation_dom @ ( relation_composition @ SV378 @ SV494 ) )
            = ( relation_dom @ SV378 ) ) )
        = $true )
      | ( ( relation @ SV378 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2424]) ).

thf(2536,plain,
    ! [SV380: $i,SV495: $i] :
      ( ( ( ~ ( relation @ SV495 ) )
        = $true )
      | ( ( ~ ( subset @ ( relation_dom @ SV380 ) @ ( relation_rng @ SV495 ) )
          | ( ( relation_rng @ ( relation_composition @ SV495 @ SV380 ) )
            = ( relation_rng @ SV380 ) ) )
        = $true )
      | ( ( relation @ SV380 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2426]) ).

thf(2537,plain,
    ! [SV456: $i,SV383: $i] :
      ( ( ( subset @ SV383 @ SV456 )
        = $false )
      | ( ( proper_subset @ SV456 @ SV383 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2428]) ).

thf(2538,plain,
    ! [SV384: $i,SV484: $i,SV457: $i] :
      ( ( ( ~ ( disjoint @ SV457 @ SV484 ) )
        = $true )
      | ( ( ~ ( subset @ SV384 @ SV457 ) )
        = $true )
      | ( ( disjoint @ SV384 @ SV484 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2429]) ).

thf(2539,plain,
    ! [SV485: $i,SV460: $i,SV388: $i] :
      ( ( ( ~ ( subset @ SV388 @ SV460 ) )
        = $true )
      | ( ( ~ ( subset @ SV485 @ SV460 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV388 @ SV485 ) @ SV460 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2431]) ).

thf(2540,plain,
    ! [SV496: $i,SV461: $i,SV389: $i] :
      ( ( ( ( singleton @ SV389 )
          = ( unordered_pair @ SV461 @ SV496 ) )
        = $false )
      | ( ( SV389 = SV461 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2432]) ).

thf(2541,plain,
    ! [SV486: $i,SV463: $i,SV392: $i] :
      ( ( ( ( singleton @ SV392 )
          = ( unordered_pair @ SV463 @ SV486 ) )
        = $false )
      | ( ( SV463 = SV486 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2434]) ).

thf(2542,plain,
    ! [SV393: $i,SV464: $i] :
      ( ( ( in @ SV464 @ SV393 )
        = $false )
      | ( ( in @ SV393 @ SV464 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2435]) ).

thf(2543,plain,
    ! [SV467: $i,SV399: $i] :
      ( ( ( relation @ SV399 )
        = $false )
      | ( ( ~ ( relation @ SV467 ) )
        = $true )
      | ( ( relation @ ( relation_composition @ SV399 @ SV467 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2436]) ).

thf(2544,plain,
    ! [SV469: $i,SV402: $i] :
      ( ( ( relation @ SV402 )
        = $false )
      | ( ( ~ ( relation @ SV469 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV402 @ SV469 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2437]) ).

thf(2545,plain,
    ! [SV471: $i,SV407: $i] :
      ( ( ( empty @ ( cartesian_product2 @ SV407 @ SV471 ) )
        = $false )
      | ( ( empty @ SV471 )
        = $true )
      | ( ( empty @ SV407 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2440]) ).

thf(2546,plain,
    ! [SV414: $i,SV474: $i] :
      ( ( ( empty @ SV474 )
        = $true )
      | ( ( in @ SV414 @ SV474 )
        = $true )
      | ( ( element @ SV414 @ SV474 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2443]) ).

thf(2547,plain,
    ! [SV415: $i,SV489: $i,SV475: $i] :
      ( ( ( ~ ( element @ SV475 @ ( powerset @ SV489 ) ) )
        = $true )
      | ( ( ~ ( in @ SV415 @ SV475 ) )
        = $true )
      | ( ( element @ SV415 @ SV489 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2444]) ).

thf(2548,plain,
    ! [SV416: $i,SV490: $i,SV476: $i] :
      ( ( ( ~ ( element @ SV476 @ ( powerset @ SV490 ) ) )
        = $true )
      | ( ( ~ ( in @ SV416 @ SV476 ) )
        = $true )
      | ( ( ~ ( empty @ SV490 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2445]) ).

thf(2549,plain,
    ! [SV477: $i,SV417: $i] :
      ( ( ( in @ SV417 @ SV477 )
        = $false )
      | ( ( empty @ SV477 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2446]) ).

thf(2550,plain,
    ! [SV478: $i,SV418: $i] :
      ( ( ( empty @ SV418 )
        = $false )
      | ( ( SV418 = SV478 )
        = $true )
      | ( ( ~ ( empty @ SV478 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2447]) ).

thf(2551,plain,
    ! [SV539: $i,SV419: $i] :
      ( ( ! [SY781: $i] :
            ( ~ ( in @ SV419 @ SY781 )
            | ~ ( in @ SV539 @ SY781 )
            | ( subset @ ( unordered_pair @ SV419 @ SV539 ) @ SY781 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2448]) ).

thf(2552,plain,
    ! [SV419: $i] :
      ( ( ~ ! [SY648: $i,SY649: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV419 @ SY648 ) @ SY649 )
              | ( in @ SV419 @ SY649 ) )
        | ~ ! [SY650: $i,SY651: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV419 @ SY650 ) @ SY651 )
              | ( in @ SY650 @ SY651 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2449]) ).

thf(2553,plain,
    ! [SV420: $i] :
      ( ( ( ~ ! [SY652: $i] :
                ( ~ ( relation @ SY652 )
                | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                        | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                        | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) ) )
                | ( SY652
                  = ( relation_inverse @ SV420 ) ) ) )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2450]) ).

thf(2554,plain,
    ! [SV420: $i] :
      ( ( ( ~ ! [SY653: $i] :
                ( ~ ( relation @ SY653 )
                | ( SY653
                 != ( relation_inverse @ SV420 ) )
                | ~ ( ~ ! [SY654: $i,SY655: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY654 @ SY655 ) @ SY653 )
                          | ( in @ ( ordered_pair @ SY655 @ SY654 ) @ SV420 ) )
                    | ~ ! [SY656: $i,SY657: $i] :
                          ( ~ ( in @ ( ordered_pair @ SY657 @ SY656 ) @ SV420 )
                          | ( in @ ( ordered_pair @ SY656 @ SY657 ) @ SY653 ) ) ) ) )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2450]) ).

thf(2555,plain,
    ! [SV540: $i,SV497: $i] :
      ( ( ( disjoint @ SV497 @ SV540 )
        | ( in @ ( sK33_C @ SV540 @ SV497 ) @ ( set_intersection2 @ SV497 @ SV540 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2451]) ).

thf(2556,plain,
    ! [SV541: $i,SV498: $i] :
      ( ( ! [SY782: $i] :
            ~ ( in @ SY782 @ ( set_intersection2 @ SV498 @ SV541 ) )
        | ~ ( disjoint @ SV498 @ SV541 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2452]) ).

thf(2557,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
              | ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) ) )
        = $false )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2453]) ).

thf(2558,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( ~ ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
              | ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) ) )
        = $false )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2453]) ).

thf(2559,plain,
    ! [SV542: $i,SV422: $i] :
      ( ( ! [SY783: $i] :
            ( ~ ( relation @ SY783 )
            | ~ ( in @ ( ordered_pair @ SV422 @ SV542 ) @ SY783 )
            | ( in @ SV422 @ ( relation_dom @ SY783 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2454]) ).

thf(2560,plain,
    ! [SV543: $i,SV422: $i] :
      ( ( ! [SY784: $i] :
            ( ~ ( relation @ SY784 )
            | ~ ( in @ ( ordered_pair @ SV422 @ SV543 ) @ SY784 )
            | ( in @ SV543 @ ( relation_rng @ SY784 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2455]) ).

thf(2561,plain,
    ! [SV544: $i,SV499: $i] :
      ( ( ~ ( subset @ SV499 @ ( singleton @ SV544 ) )
        | ( SV499 = empty_set )
        | ( SV499
          = ( singleton @ SV544 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2456]) ).

thf(2562,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2457]) ).

thf(2563,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2457]) ).

thf(2564,plain,
    ! [SV545: $i,SV500: $i] :
      ( ( ( ( set_difference @ SV500 @ SV545 )
         != SV500 )
        | ( disjoint @ SV500 @ SV545 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2458]) ).

thf(2565,plain,
    ! [SV546: $i,SV501: $i] :
      ( ( ~ ( disjoint @ SV501 @ SV546 )
        | ( ( set_difference @ SV501 @ SV546 )
          = SV501 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2459]) ).

thf(2566,plain,
    ! [SV423: $i,SV547: $i] :
      ( ( ! [SY785: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SY785 @ SV547 @ SV423 ) @ SY785 )
                          | ~ ( in @ ( sK24_D @ SY785 @ SV547 @ SV423 ) @ SV423 ) )
                      | ~ ( ~ ( in @ ( sK24_D @ SY785 @ SV547 @ SV423 ) @ SY785 )
                          | ~ ( in @ ( sK24_D @ SY785 @ SV547 @ SV423 ) @ SV547 ) ) )
                | ~ ( ( in @ ( sK24_D @ SY785 @ SV547 @ SV423 ) @ SY785 )
                    | ( in @ ( sK24_D @ SY785 @ SV547 @ SV423 ) @ SV423 )
                    | ( in @ ( sK24_D @ SY785 @ SV547 @ SV423 ) @ SV547 ) ) )
            | ( SY785
              = ( set_union2 @ SV423 @ SV547 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2460]) ).

thf(2567,plain,
    ! [SV548: $i,SV423: $i] :
      ( ( ! [SY786: $i] :
            ( ( SY786
             != ( set_union2 @ SV423 @ SV548 ) )
            | ~ ( ~ ! [SY787: $i] :
                      ( ~ ( in @ SY787 @ SY786 )
                      | ( in @ SY787 @ SV423 )
                      | ( in @ SY787 @ SV548 ) )
                | ~ ~ ( ~ ! [SY668: $i] :
                            ( ~ ( in @ SY668 @ SV423 )
                            | ( in @ SY668 @ SY786 ) )
                      | ~ ! [SY789: $i] :
                            ( ~ ( in @ SY789 @ SV548 )
                            | ( in @ SY789 @ SY786 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2461]) ).

thf(2568,plain,
    ! [SV549: $i,SV502: $i] :
      ( ( ~ ( subset @ SV502 @ ( singleton @ SV549 ) )
        | ( SV502 = empty_set )
        | ( SV502
          = ( singleton @ SV549 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2462]) ).

thf(2569,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2463]) ).

thf(2570,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2463]) ).

thf(2571,plain,
    ! [SV550: $i,SV503: $i] :
      ( ( ( SV503 = SV550 )
        | ~ ( subset @ SV503 @ SV550 )
        | ( proper_subset @ SV503 @ SV550 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2464]) ).

thf(2572,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2465]) ).

thf(2573,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2465]) ).

thf(2574,plain,
    ! [SV551: $i,SV504: $i] :
      ( ( ( disjoint @ SV504 @ SV551 )
        | ~ ( ~ ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV504 )
            | ~ ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV551 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2466]) ).

thf(2575,plain,
    ! [SV552: $i,SV505: $i] :
      ( ( ! [SY790: $i] :
            ( ~ ( in @ SY790 @ SV505 )
            | ~ ( in @ SY790 @ SV552 ) )
        | ~ ( disjoint @ SV505 @ SV552 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2467]) ).

thf(2576,plain,
    ! [SV424: $i,SV553: $i] :
      ( ( ~ ( subset @ SV553 @ ( sK35_B @ SV424 ) )
        | ( are_equipotent @ SV553 @ ( sK35_B @ SV424 ) )
        | ( in @ SV553 @ ( sK35_B @ SV424 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2468]) ).

thf(2577,plain,
    ! [SV424: $i] :
      ( ( ~ ! [SY671: $i] :
              ( ~ ( in @ SY671 @ ( sK35_B @ SV424 ) )
              | ( in @ ( powerset @ SY671 ) @ ( sK35_B @ SV424 ) ) )
        | ~ ~ ( ~ ! [SY672: $i,SY673: $i] :
                    ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
                    | ~ ( subset @ SY673 @ SY672 )
                    | ( in @ SY673 @ ( sK35_B @ SV424 ) ) )
              | ~ ( in @ SV424 @ ( sK35_B @ SV424 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2469]) ).

thf(2578,plain,
    ! [SV425: $i] :
      ( ( ( ~ ! [SY674: $i] :
                ( ~ ( relation @ SY674 )
                | ~ ( subset @ SV425 @ SY674 )
                | ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SY674 ) ) ) )
        = $false )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2470]) ).

thf(2579,plain,
    ! [SV425: $i] :
      ( ( ( ~ ! [SY675: $i] :
                ( ~ ( relation @ SY675 )
                | ~ ( subset @ SV425 @ SY675 )
                | ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SY675 ) ) ) )
        = $false )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2470]) ).

thf(2580,plain,
    ! [SV554: $i,SV506: $i] :
      ( ( ~ ( in @ SV506 @ SV554 )
        | ( subset @ ( singleton @ SV506 ) @ SV554 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2471]) ).

thf(2581,plain,
    ! [SV555: $i,SV507: $i] :
      ( ( ~ ( subset @ ( singleton @ SV507 ) @ SV555 )
        | ( in @ SV507 @ SV555 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2472]) ).

thf(2582,plain,
    ! [SV508: $i] :
      ( ( ( in @ ( sK37_B @ SV508 ) @ SV508 )
        = $true )
      | ( ( SV508 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2473]) ).

thf(2583,plain,
    ! [SV509: $i] :
      ( ( ( ( SV509 != empty_set ) )
        = $true )
      | ( ( ! [SY747: $i] :
              ~ ( in @ SY747 @ SV509 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2474]) ).

thf(2584,plain,
    ! [SV426: $i,SV556: $i] :
      ( ( ~ ( subset @ SV556 @ ( sK1_B @ SV426 ) )
        | ( are_equipotent @ SV556 @ ( sK1_B @ SV426 ) )
        | ( in @ SV556 @ ( sK1_B @ SV426 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2475]) ).

thf(2585,plain,
    ! [SV426: $i] :
      ( ( ~ ! [SY677: $i] :
              ( ~ ( ~ ! [SY678: $i] :
                        ( ~ ( subset @ SY678 @ SY677 )
                        | ( in @ SY678 @ ( sK2_SY267 @ SY677 @ SV426 ) ) )
                  | ~ ( in @ ( sK2_SY267 @ SY677 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
              | ~ ( in @ SY677 @ ( sK1_B @ SV426 ) ) )
        | ~ ~ ( ~ ! [SY679: $i,SY680: $i] :
                    ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
                    | ~ ( subset @ SY680 @ SY679 )
                    | ( in @ SY680 @ ( sK1_B @ SV426 ) ) )
              | ~ ( in @ SV426 @ ( sK1_B @ SV426 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2476]) ).

thf(2586,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
                | ~ ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) )
            | ~ ( ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
                | ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) ) )
        | ( SV557
          = ( powerset @ SV510 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2477]) ).

thf(2587,plain,
    ! [SV511: $i,SV558: $i] :
      ( ( ( SV558
         != ( powerset @ SV511 ) )
        | ~ ( ~ ! [SY791: $i] :
                  ( ~ ( in @ SY791 @ SV558 )
                  | ( subset @ SY791 @ SV511 ) )
            | ~ ! [SY792: $i] :
                  ( ~ ( subset @ SY792 @ SV511 )
                  | ( in @ SY792 @ SV558 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2478]) ).

thf(2588,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2479]) ).

thf(2589,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2479]) ).

thf(2590,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2480]) ).

thf(2591,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2480]) ).

thf(2592,plain,
    ! [SV559: $i,SV512: $i] :
      ( ( ( ( set_difference @ SV512 @ ( singleton @ SV559 ) )
         != SV512 )
        | ~ ( in @ SV559 @ SV512 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2481]) ).

thf(2593,plain,
    ! [SV513: $i,SV560: $i] :
      ( ( ( in @ SV560 @ SV513 )
        | ( ( set_difference @ SV513 @ ( singleton @ SV560 ) )
          = SV513 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2482]) ).

thf(2594,plain,
    ! [SV514: $i] :
      ( ( ( ~ ( ~ ! [SY754: $i,SY755: $i] :
                    ( ( sK30_B @ SV514 )
                   != ( ordered_pair @ SY754 @ SY755 ) )
              | ~ ( in @ ( sK30_B @ SV514 ) @ SV514 ) ) )
        = $true )
      | ( ( relation @ SV514 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2483]) ).

thf(2595,plain,
    ! [SV515: $i] :
      ( ( ( ~ ( relation @ SV515 ) )
        = $true )
      | ( ( ! [SY756: $i] :
              ( ( SY756
                = ( ordered_pair @ ( sK28_C @ SY756 @ SV515 ) @ ( sK29_SY279 @ SY756 @ SV515 ) ) )
              | ~ ( in @ SY756 @ SV515 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2484]) ).

thf(2596,plain,
    ! [SV561: $i,SV516: $i] :
      ( ( ( ( set_intersection2 @ SV516 @ SV561 )
         != empty_set )
        | ( disjoint @ SV516 @ SV561 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2485]) ).

thf(2597,plain,
    ! [SV562: $i,SV517: $i] :
      ( ( ~ ( disjoint @ SV517 @ SV562 )
        | ( ( set_intersection2 @ SV517 @ SV562 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2486]) ).

thf(2598,plain,
    ! [SV563: $i,SV518: $i] :
      ( ( ~ ( subset @ SV518 @ SV563 )
        | ~ ( subset @ SV563 @ SV518 )
        | ( SV518 = SV563 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2487]) ).

thf(2599,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2488]) ).

thf(2600,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2488]) ).

thf(2601,plain,
    ! [SV564: $i,SV519: $i] :
      ( ( ~ ( element @ SV519 @ ( powerset @ SV564 ) )
        | ( subset @ SV519 @ SV564 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2490]) ).

thf(2602,plain,
    ! [SV565: $i,SV520: $i] :
      ( ( ~ ( subset @ SV520 @ SV565 )
        | ( element @ SV520 @ ( powerset @ SV565 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2491]) ).

thf(2603,plain,
    ! [SV427: $i] :
      ( ( ( ~ ! [SY681: $i] :
                ( ~ ( ~ ( ! [SY682: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ SY682 ) @ SV427 )
                        | ~ ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ ( sK21_SY278 @ SY681 @ SV427 ) ) @ SV427 )
                        | ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) ) )
                | ( SY681
                  = ( relation_dom @ SV427 ) ) ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2492]) ).

thf(2604,plain,
    ! [SV427: $i] :
      ( ( ( ~ ! [SY683: $i] :
                ( ( SY683
                 != ( relation_dom @ SV427 ) )
                | ~ ( ~ ! [SY684: $i] :
                          ( ! [SY685: $i] :
                              ~ ( in @ ( ordered_pair @ SY684 @ SY685 ) @ SV427 )
                          | ( in @ SY684 @ SY683 ) )
                    | ~ ! [SY686: $i] :
                          ( ~ ( in @ SY686 @ SY683 )
                          | ( in @ ( ordered_pair @ SY686 @ ( sK19_D @ SY686 @ SY683 @ SV427 ) ) @ SV427 ) ) ) ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2492]) ).

thf(2605,plain,
    ! [SV428: $i,SV566: $i] :
      ( ( ! [SY793: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SY793 @ SV566 @ SV428 ) @ SV428 )
                    | ( in @ ( sK15_D @ SY793 @ SV566 @ SV428 ) @ SV566 )
                    | ~ ( in @ ( sK15_D @ SY793 @ SV566 @ SV428 ) @ SY793 ) )
                | ~ ~ ( ~ ( ( in @ ( sK15_D @ SY793 @ SV566 @ SV428 ) @ SV428 )
                          | ( in @ ( sK15_D @ SY793 @ SV566 @ SV428 ) @ SY793 ) )
                      | ~ ( ~ ( in @ ( sK15_D @ SY793 @ SV566 @ SV428 ) @ SV566 )
                          | ( in @ ( sK15_D @ SY793 @ SV566 @ SV428 ) @ SY793 ) ) ) )
            | ( SY793
              = ( set_difference @ SV428 @ SV566 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2493]) ).

thf(2606,plain,
    ! [SV567: $i,SV428: $i] :
      ( ( ! [SY794: $i] :
            ( ( SY794
             != ( set_difference @ SV428 @ SV567 ) )
            | ~ ( ~ ! [SY795: $i] :
                      ( ~ ( in @ SY795 @ SV428 )
                      | ( in @ SY795 @ SV567 )
                      | ( in @ SY795 @ SY794 ) )
                | ~ ~ ( ~ ! [SY692: $i] :
                            ( ~ ( in @ SY692 @ SY794 )
                            | ( in @ SY692 @ SV428 ) )
                      | ~ ! [SY797: $i] :
                            ( ~ ( in @ SY797 @ SY794 )
                            | ~ ( in @ SY797 @ SV567 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2494]) ).

thf(2607,plain,
    ! [SV521: $i] :
      ( ( ( ~ ( relation @ SV521 ) )
        = $true )
      | ( ( ( relation_rng @ SV521 )
          = ( relation_dom @ ( relation_inverse @ SV521 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2495]) ).

thf(2608,plain,
    ! [SV522: $i] :
      ( ( ( ~ ( relation @ SV522 ) )
        = $true )
      | ( ( ( relation_dom @ SV522 )
          = ( relation_rng @ ( relation_inverse @ SV522 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2496]) ).

thf(2609,plain,
    ! [SV568: $i,SV523: $i] :
      ( ( ~ ( in @ SV523 @ SV568 )
        | ( subset @ ( singleton @ SV523 ) @ SV568 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2497]) ).

thf(2610,plain,
    ! [SV569: $i,SV524: $i] :
      ( ( ~ ( subset @ ( singleton @ SV524 ) @ SV569 )
        | ( in @ SV524 @ SV569 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2498]) ).

thf(2611,plain,
    ! [SV429: $i,SV570: $i] :
      ( ( ! [SY798: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SY798 @ SV570 @ SV429 ) @ SV429 )
                    | ~ ( in @ ( sK22_D @ SY798 @ SV570 @ SV429 ) @ SV570 )
                    | ~ ( in @ ( sK22_D @ SY798 @ SV570 @ SV429 ) @ SY798 ) )
                | ~ ~ ( ~ ( ( in @ ( sK22_D @ SY798 @ SV570 @ SV429 ) @ SV429 )
                          | ( in @ ( sK22_D @ SY798 @ SV570 @ SV429 ) @ SY798 ) )
                      | ~ ( ( in @ ( sK22_D @ SY798 @ SV570 @ SV429 ) @ SV570 )
                          | ( in @ ( sK22_D @ SY798 @ SV570 @ SV429 ) @ SY798 ) ) ) )
            | ( SY798
              = ( set_intersection2 @ SV429 @ SV570 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2499]) ).

thf(2612,plain,
    ! [SV571: $i,SV429: $i] :
      ( ( ! [SY799: $i] :
            ( ( SY799
             != ( set_intersection2 @ SV429 @ SV571 ) )
            | ~ ( ~ ! [SY800: $i] :
                      ( ~ ( in @ SY800 @ SV429 )
                      | ~ ( in @ SY800 @ SV571 )
                      | ( in @ SY800 @ SY799 ) )
                | ~ ~ ( ~ ! [SY699: $i] :
                            ( ~ ( in @ SY699 @ SY799 )
                            | ( in @ SY699 @ SV429 ) )
                      | ~ ! [SY802: $i] :
                            ( ~ ( in @ SY802 @ SY799 )
                            | ( in @ SY802 @ SV571 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2500]) ).

thf(2613,plain,
    ! [SV430: $i] :
      ( ( ( ~ ! [SY701: $i] :
                ( ~ ( ~ ( ! [SY702: $i] :
                            ~ ( in @ ( ordered_pair @ SY702 @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                        | ~ ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY701 @ SV430 ) @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                        | ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) ) )
                | ( SY701
                  = ( relation_rng @ SV430 ) ) ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2501]) ).

thf(2614,plain,
    ! [SV430: $i] :
      ( ( ( ~ ! [SY703: $i] :
                ( ( SY703
                 != ( relation_rng @ SV430 ) )
                | ~ ( ~ ! [SY704: $i] :
                          ( ! [SY705: $i] :
                              ~ ( in @ ( ordered_pair @ SY705 @ SY704 ) @ SV430 )
                          | ( in @ SY704 @ SY703 ) )
                    | ~ ! [SY706: $i] :
                          ( ~ ( in @ SY706 @ SY703 )
                          | ( in @ ( ordered_pair @ ( sK12_D @ SY706 @ SY703 @ SV430 ) @ SY706 ) @ SV430 ) ) ) ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2501]) ).

thf(2615,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ~ ( ~ ( ! [SY803: $i] :
                    ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SY803 )
                    | ~ ( in @ SY803 @ SV525 ) )
                | ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
            | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ ( sK18_SY276 @ SV572 @ SV525 ) )
                    | ~ ( in @ ( sK18_SY276 @ SV572 @ SV525 ) @ SV525 ) )
                | ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) ) )
        | ( SV572
          = ( union @ SV525 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2502]) ).

thf(2616,plain,
    ! [SV526: $i,SV573: $i] :
      ( ( ( SV573
         != ( union @ SV526 ) )
        | ~ ( ~ ! [SY804: $i] :
                  ( ! [SY768: $i] :
                      ( ~ ( in @ SY804 @ SY768 )
                      | ~ ( in @ SY768 @ SV526 ) )
                  | ( in @ SY804 @ SV573 ) )
            | ~ ! [SY806: $i] :
                  ( ~ ( in @ SY806 @ SV573 )
                  | ~ ( ~ ( in @ SY806 @ ( sK16_D @ SY806 @ SV573 @ SV526 ) )
                      | ~ ( in @ ( sK16_D @ SY806 @ SV573 @ SV526 ) @ SV526 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2503]) ).

thf(2617,plain,
    ! [SV432: $i,SV480: $i] :
      ( ( ( ~ ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV432 ) )
        = $false )
      | ( ( element @ SV432 @ ( powerset @ SV480 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2506]) ).

thf(2618,plain,
    ! [SV432: $i,SV480: $i] :
      ( ( ( ~ ~ ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV480 ) )
        = $false )
      | ( ( element @ SV432 @ ( powerset @ SV480 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2506]) ).

thf(2619,plain,
    ! [SV574: $i,SV527: $i] :
      ( ( ( ( set_difference @ SV527 @ SV574 )
         != empty_set )
        | ( subset @ SV527 @ SV574 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2507]) ).

thf(2620,plain,
    ! [SV575: $i,SV528: $i] :
      ( ( ~ ( subset @ SV528 @ SV575 )
        | ( ( set_difference @ SV528 @ SV575 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2508]) ).

thf(2621,plain,
    ! [SV529: $i,SV576: $i] :
      ( ( ~ ( ~ ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV529 )
            | ~ ~ ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV576 ) )
        | ( subset @ SV529 @ SV576 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2509]) ).

thf(2622,plain,
    ! [SV577: $i,SV530: $i] :
      ( ( ~ ( subset @ SV530 @ SV577 )
        | ! [SY807: $i] :
            ( ~ ( in @ SY807 @ SV530 )
            | ( in @ SY807 @ SV577 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2510]) ).

thf(2623,plain,
    ! [SV578: $i,SV531: $i] :
      ( ( ( ( set_difference @ SV531 @ SV578 )
         != empty_set )
        | ( subset @ SV531 @ SV578 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2511]) ).

thf(2624,plain,
    ! [SV579: $i,SV532: $i] :
      ( ( ~ ( subset @ SV532 @ SV579 )
        | ( ( set_difference @ SV532 @ SV579 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2512]) ).

thf(2625,plain,
    ! [SV433: $i,SV580: $i] :
      ( ( ! [SY808: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SY808 @ SV580 @ SV433 ) @ SY808 )
                          | ( ( sK25_D @ SY808 @ SV580 @ SV433 )
                           != SV433 ) )
                      | ~ ( ~ ( in @ ( sK25_D @ SY808 @ SV580 @ SV433 ) @ SY808 )
                          | ( ( sK25_D @ SY808 @ SV580 @ SV433 )
                           != SV580 ) ) )
                | ~ ( ( in @ ( sK25_D @ SY808 @ SV580 @ SV433 ) @ SY808 )
                    | ( ( sK25_D @ SY808 @ SV580 @ SV433 )
                      = SV433 )
                    | ( ( sK25_D @ SY808 @ SV580 @ SV433 )
                      = SV580 ) ) )
            | ( SY808
              = ( unordered_pair @ SV433 @ SV580 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2513]) ).

thf(2626,plain,
    ! [SV581: $i,SV433: $i] :
      ( ( ! [SY809: $i] :
            ( ( SY809
             != ( unordered_pair @ SV433 @ SV581 ) )
            | ~ ( ~ ! [SY810: $i] :
                      ( ~ ( in @ SY810 @ SY809 )
                      | ( SY810 = SV433 )
                      | ( SY810 = SV581 ) )
                | ~ ~ ( ~ ! [SY713: $i] :
                            ( ( SY713 != SV433 )
                            | ( in @ SY713 @ SY809 ) )
                      | ~ ! [SY812: $i] :
                            ( ( SY812 != SV581 )
                            | ( in @ SY812 @ SY809 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2514]) ).

thf(2627,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2515]) ).

thf(2628,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK38_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)],[2515]) ).

thf(2629,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2516]) ).

thf(2630,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2516]) ).

thf(2631,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ~ ( ~ ( ( ( sK27_C @ SV582 @ SV533 )
                 != SV533 )
                | ~ ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) )
            | ~ ( ( ( sK27_C @ SV582 @ SV533 )
                  = SV533 )
                | ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) ) )
        | ( SV582
          = ( singleton @ SV533 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2517]) ).

thf(2632,plain,
    ! [SV534: $i,SV583: $i] :
      ( ( ( SV583
         != ( singleton @ SV534 ) )
        | ~ ( ~ ! [SY813: $i] :
                  ( ( SY813 != SV534 )
                  | ( in @ SY813 @ SV583 ) )
            | ~ ! [SY814: $i] :
                  ( ~ ( in @ SY814 @ SV583 )
                  | ( SY814 = SV534 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2518]) ).

thf(2633,plain,
    ! [SV584: $i,SV434: $i] :
      ( ( ~ ( subset @ SV434 @ SV584 )
        | ! [SY815: $i] : ( subset @ ( cartesian_product2 @ SV434 @ SY815 ) @ ( cartesian_product2 @ SV584 @ SY815 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2519]) ).

thf(2634,plain,
    ! [SV585: $i,SV434: $i] :
      ( ( ~ ( subset @ SV434 @ SV585 )
        | ! [SY816: $i] : ( subset @ ( cartesian_product2 @ SY816 @ SV434 ) @ ( cartesian_product2 @ SY816 @ SV585 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2520]) ).

thf(2635,plain,
    ! [SV435: $i] :
      ( ( ( element @ ( sK8_B @ SV435 ) @ ( powerset @ SV435 ) )
        = $true )
      | ( ( empty @ SV435 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2521]) ).

thf(2636,plain,
    ! [SV435: $i] :
      ( ( ( ~ ( empty @ ( sK8_B @ SV435 ) ) )
        = $true )
      | ( ( empty @ SV435 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2522]) ).

thf(2637,plain,
    ! [SV360: $i,SV439: $i,SV535: $i] :
      ( ( ( ~ ( in @ SV535 @ SV439 ) )
        = $true )
      | ( ( in @ SV535 @ SV360 )
        = $true )
      | ( ( element @ SV439 @ ( powerset @ SV360 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2526]) ).

thf(2638,plain,
    ! [SV440: $i,SV361: $i,SV536: $i] :
      ( ( ( in @ SV536 @ SV361 )
        = $true )
      | ( ( subset @ SV361 @ ( set_difference @ SV440 @ ( singleton @ SV536 ) ) )
        = $true )
      | ( ( subset @ SV361 @ SV440 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2527]) ).

thf(2639,plain,
    ! [SV491: $i,SV481: $i,SV442: $i,SV363: $i] :
      ( ( ( ~ ( subset @ SV363 @ SV442 ) )
        = $true )
      | ( ( ~ ( subset @ SV481 @ SV491 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV363 @ SV481 ) @ ( cartesian_product2 @ SV442 @ SV491 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2528]) ).

thf(2640,plain,
    ! [SV482: $i,SV445: $i,SV366: $i] :
      ( ( ( subset @ SV366 @ SV445 )
        = $false )
      | ( ( ~ ( subset @ SV366 @ SV482 ) )
        = $true )
      | ( ( subset @ SV366 @ ( set_intersection2 @ SV445 @ SV482 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2529]) ).

thf(2641,plain,
    ! [SV483: $i,SV446: $i,SV367: $i] :
      ( ( ( subset @ SV367 @ SV446 )
        = $false )
      | ( ( ~ ( subset @ SV446 @ SV483 ) )
        = $true )
      | ( ( subset @ SV367 @ SV483 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2530]) ).

thf(2642,plain,
    ! [SV375: $i,SV492: $i] :
      ( ( ( relation @ SV492 )
        = $false )
      | ( ( subset @ ( relation_dom @ ( relation_composition @ SV375 @ SV492 ) ) @ ( relation_dom @ SV375 ) )
        = $true )
      | ( ( relation @ SV375 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2533]) ).

thf(2643,plain,
    ! [SV376: $i,SV493: $i] :
      ( ( ( relation @ SV493 )
        = $false )
      | ( ( subset @ ( relation_rng @ ( relation_composition @ SV376 @ SV493 ) ) @ ( relation_rng @ SV493 ) )
        = $true )
      | ( ( relation @ SV376 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2534]) ).

thf(2644,plain,
    ! [SV378: $i,SV494: $i] :
      ( ( ( relation @ SV494 )
        = $false )
      | ( ( ~ ( subset @ ( relation_rng @ SV378 ) @ ( relation_dom @ SV494 ) )
          | ( ( relation_dom @ ( relation_composition @ SV378 @ SV494 ) )
            = ( relation_dom @ SV378 ) ) )
        = $true )
      | ( ( relation @ SV378 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2535]) ).

thf(2645,plain,
    ! [SV380: $i,SV495: $i] :
      ( ( ( relation @ SV495 )
        = $false )
      | ( ( ~ ( subset @ ( relation_dom @ SV380 ) @ ( relation_rng @ SV495 ) )
          | ( ( relation_rng @ ( relation_composition @ SV495 @ SV380 ) )
            = ( relation_rng @ SV380 ) ) )
        = $true )
      | ( ( relation @ SV380 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2536]) ).

thf(2646,plain,
    ! [SV384: $i,SV484: $i,SV457: $i] :
      ( ( ( disjoint @ SV457 @ SV484 )
        = $false )
      | ( ( ~ ( subset @ SV384 @ SV457 ) )
        = $true )
      | ( ( disjoint @ SV384 @ SV484 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2538]) ).

thf(2647,plain,
    ! [SV485: $i,SV460: $i,SV388: $i] :
      ( ( ( subset @ SV388 @ SV460 )
        = $false )
      | ( ( ~ ( subset @ SV485 @ SV460 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV388 @ SV485 ) @ SV460 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2539]) ).

thf(2648,plain,
    ! [SV399: $i,SV467: $i] :
      ( ( ( relation @ SV467 )
        = $false )
      | ( ( relation @ SV399 )
        = $false )
      | ( ( relation @ ( relation_composition @ SV399 @ SV467 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2543]) ).

thf(2649,plain,
    ! [SV402: $i,SV469: $i] :
      ( ( ( relation @ SV469 )
        = $false )
      | ( ( relation @ SV402 )
        = $false )
      | ( ( relation @ ( set_union2 @ SV402 @ SV469 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2544]) ).

thf(2650,plain,
    ! [SV415: $i,SV489: $i,SV475: $i] :
      ( ( ( element @ SV475 @ ( powerset @ SV489 ) )
        = $false )
      | ( ( ~ ( in @ SV415 @ SV475 ) )
        = $true )
      | ( ( element @ SV415 @ SV489 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2547]) ).

thf(2651,plain,
    ! [SV416: $i,SV490: $i,SV476: $i] :
      ( ( ( element @ SV476 @ ( powerset @ SV490 ) )
        = $false )
      | ( ( ~ ( in @ SV416 @ SV476 ) )
        = $true )
      | ( ( ~ ( empty @ SV490 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2548]) ).

thf(2652,plain,
    ! [SV418: $i,SV478: $i] :
      ( ( ( empty @ SV478 )
        = $false )
      | ( ( SV418 = SV478 )
        = $true )
      | ( ( empty @ SV418 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2550]) ).

thf(2653,plain,
    ! [SV539: $i,SV586: $i,SV419: $i] :
      ( ( ~ ( in @ SV419 @ SV586 )
        | ~ ( in @ SV539 @ SV586 )
        | ( subset @ ( unordered_pair @ SV419 @ SV539 ) @ SV586 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2551]) ).

thf(2654,plain,
    ! [SV419: $i] :
      ( ( ~ ! [SY648: $i,SY649: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV419 @ SY648 ) @ SY649 )
              | ( in @ SV419 @ SY649 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2552]) ).

thf(2655,plain,
    ! [SV419: $i] :
      ( ( ~ ! [SY650: $i,SY651: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV419 @ SY650 ) @ SY651 )
              | ( in @ SY650 @ SY651 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2552]) ).

thf(2656,plain,
    ! [SV420: $i] :
      ( ( ( ! [SY652: $i] :
              ( ~ ( relation @ SY652 )
              | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                      | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SY652 @ SV420 ) @ ( sK11_SY272 @ SY652 @ SV420 ) ) @ SY652 )
                      | ( in @ ( ordered_pair @ ( sK11_SY272 @ SY652 @ SV420 ) @ ( sK10_C @ SY652 @ SV420 ) ) @ SV420 ) ) )
              | ( SY652
                = ( relation_inverse @ SV420 ) ) ) )
        = $true )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2553]) ).

thf(2657,plain,
    ! [SV420: $i] :
      ( ( ( ! [SY653: $i] :
              ( ~ ( relation @ SY653 )
              | ( SY653
               != ( relation_inverse @ SV420 ) )
              | ~ ( ~ ! [SY654: $i,SY655: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY654 @ SY655 ) @ SY653 )
                        | ( in @ ( ordered_pair @ SY655 @ SY654 ) @ SV420 ) )
                  | ~ ! [SY656: $i,SY657: $i] :
                        ( ~ ( in @ ( ordered_pair @ SY657 @ SY656 ) @ SV420 )
                        | ( in @ ( ordered_pair @ SY656 @ SY657 ) @ SY653 ) ) ) ) )
        = $true )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2554]) ).

thf(2658,plain,
    ! [SV540: $i,SV497: $i] :
      ( ( ( disjoint @ SV497 @ SV540 )
        = $true )
      | ( ( in @ ( sK33_C @ SV540 @ SV497 ) @ ( set_intersection2 @ SV497 @ SV540 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2555]) ).

thf(2659,plain,
    ! [SV541: $i,SV498: $i] :
      ( ( ( ! [SY782: $i] :
              ~ ( in @ SY782 @ ( set_intersection2 @ SV498 @ SV541 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV498 @ SV541 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2556]) ).

thf(2660,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
          | ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) )
        = $true )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2557]) ).

thf(2661,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
          | ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) )
        = $true )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2558]) ).

thf(2662,plain,
    ! [SV542: $i,SV422: $i,SV587: $i] :
      ( ( ~ ( relation @ SV587 )
        | ~ ( in @ ( ordered_pair @ SV422 @ SV542 ) @ SV587 )
        | ( in @ SV422 @ ( relation_dom @ SV587 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2559]) ).

thf(2663,plain,
    ! [SV543: $i,SV422: $i,SV588: $i] :
      ( ( ~ ( relation @ SV588 )
        | ~ ( in @ ( ordered_pair @ SV422 @ SV543 ) @ SV588 )
        | ( in @ SV543 @ ( relation_rng @ SV588 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2560]) ).

thf(2664,plain,
    ! [SV544: $i,SV499: $i] :
      ( ( ( ~ ( subset @ SV499 @ ( singleton @ SV544 ) ) )
        = $true )
      | ( ( ( SV499 = empty_set )
          | ( SV499
            = ( singleton @ SV544 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2561]) ).

thf(2665,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2562]) ).

thf(2666,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2563]) ).

thf(2667,plain,
    ! [SV545: $i,SV500: $i] :
      ( ( ( ( ( set_difference @ SV500 @ SV545 )
           != SV500 ) )
        = $true )
      | ( ( disjoint @ SV500 @ SV545 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2564]) ).

thf(2668,plain,
    ! [SV546: $i,SV501: $i] :
      ( ( ( ~ ( disjoint @ SV501 @ SV546 ) )
        = $true )
      | ( ( ( set_difference @ SV501 @ SV546 )
          = SV501 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2565]) ).

thf(2669,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                      | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) )
                  | ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                      | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) )
            | ~ ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 )
                | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) )
        | ( SV589
          = ( set_union2 @ SV423 @ SV547 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2566]) ).

thf(2670,plain,
    ! [SV548: $i,SV423: $i,SV590: $i] :
      ( ( ( SV590
         != ( set_union2 @ SV423 @ SV548 ) )
        | ~ ( ~ ! [SY817: $i] :
                  ( ~ ( in @ SY817 @ SV590 )
                  | ( in @ SY817 @ SV423 )
                  | ( in @ SY817 @ SV548 ) )
            | ~ ~ ( ~ ! [SY818: $i] :
                        ( ~ ( in @ SY818 @ SV423 )
                        | ( in @ SY818 @ SV590 ) )
                  | ~ ! [SY819: $i] :
                        ( ~ ( in @ SY819 @ SV548 )
                        | ( in @ SY819 @ SV590 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2567]) ).

thf(2671,plain,
    ! [SV549: $i,SV502: $i] :
      ( ( ( ~ ( subset @ SV502 @ ( singleton @ SV549 ) ) )
        = $true )
      | ( ( ( SV502 = empty_set )
          | ( SV502
            = ( singleton @ SV549 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2568]) ).

thf(2672,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2569]) ).

thf(2673,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2570]) ).

thf(2674,plain,
    ! [SV550: $i,SV503: $i] :
      ( ( ( ( SV503 = SV550 )
          | ~ ( subset @ SV503 @ SV550 ) )
        = $true )
      | ( ( proper_subset @ SV503 @ SV550 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2571]) ).

thf(2675,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2572]) ).

thf(2676,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2573]) ).

thf(2677,plain,
    ! [SV551: $i,SV504: $i] :
      ( ( ( disjoint @ SV504 @ SV551 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV504 )
              | ~ ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV551 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2574]) ).

thf(2678,plain,
    ! [SV552: $i,SV505: $i] :
      ( ( ( ! [SY790: $i] :
              ( ~ ( in @ SY790 @ SV505 )
              | ~ ( in @ SY790 @ SV552 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV505 @ SV552 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2575]) ).

thf(2679,plain,
    ! [SV424: $i,SV553: $i] :
      ( ( ( ~ ( subset @ SV553 @ ( sK35_B @ SV424 ) )
          | ( are_equipotent @ SV553 @ ( sK35_B @ SV424 ) ) )
        = $true )
      | ( ( in @ SV553 @ ( sK35_B @ SV424 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2576]) ).

thf(2680,plain,
    ! [SV424: $i] :
      ( ( ~ ! [SY671: $i] :
              ( ~ ( in @ SY671 @ ( sK35_B @ SV424 ) )
              | ( in @ ( powerset @ SY671 ) @ ( sK35_B @ SV424 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2577]) ).

thf(2681,plain,
    ! [SV424: $i] :
      ( ( ~ ~ ( ~ ! [SY672: $i,SY673: $i] :
                    ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
                    | ~ ( subset @ SY673 @ SY672 )
                    | ( in @ SY673 @ ( sK35_B @ SV424 ) ) )
              | ~ ( in @ SV424 @ ( sK35_B @ SV424 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2577]) ).

thf(2682,plain,
    ! [SV425: $i] :
      ( ( ( ! [SY674: $i] :
              ( ~ ( relation @ SY674 )
              | ~ ( subset @ SV425 @ SY674 )
              | ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SY674 ) ) ) )
        = $true )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2578]) ).

thf(2683,plain,
    ! [SV425: $i] :
      ( ( ( ! [SY675: $i] :
              ( ~ ( relation @ SY675 )
              | ~ ( subset @ SV425 @ SY675 )
              | ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SY675 ) ) ) )
        = $true )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2579]) ).

thf(2684,plain,
    ! [SV554: $i,SV506: $i] :
      ( ( ( ~ ( in @ SV506 @ SV554 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV506 ) @ SV554 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2580]) ).

thf(2685,plain,
    ! [SV555: $i,SV507: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV507 ) @ SV555 ) )
        = $true )
      | ( ( in @ SV507 @ SV555 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2581]) ).

thf(2686,plain,
    ! [SV509: $i] :
      ( ( ( SV509 = empty_set )
        = $false )
      | ( ( ! [SY747: $i] :
              ~ ( in @ SY747 @ SV509 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2583]) ).

thf(2687,plain,
    ! [SV426: $i,SV556: $i] :
      ( ( ( ~ ( subset @ SV556 @ ( sK1_B @ SV426 ) )
          | ( are_equipotent @ SV556 @ ( sK1_B @ SV426 ) ) )
        = $true )
      | ( ( in @ SV556 @ ( sK1_B @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2584]) ).

thf(2688,plain,
    ! [SV426: $i] :
      ( ( ~ ! [SY677: $i] :
              ( ~ ( ~ ! [SY678: $i] :
                        ( ~ ( subset @ SY678 @ SY677 )
                        | ( in @ SY678 @ ( sK2_SY267 @ SY677 @ SV426 ) ) )
                  | ~ ( in @ ( sK2_SY267 @ SY677 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
              | ~ ( in @ SY677 @ ( sK1_B @ SV426 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2585]) ).

thf(2689,plain,
    ! [SV426: $i] :
      ( ( ~ ~ ( ~ ! [SY679: $i,SY680: $i] :
                    ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
                    | ~ ( subset @ SY680 @ SY679 )
                    | ( in @ SY680 @ ( sK1_B @ SV426 ) ) )
              | ~ ( in @ SV426 @ ( sK1_B @ SV426 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2585]) ).

thf(2690,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
                  | ~ ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) )
              | ~ ( ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
                  | ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) ) ) )
        = $true )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2586]) ).

thf(2691,plain,
    ! [SV511: $i,SV558: $i] :
      ( ( ( ( SV558
           != ( powerset @ SV511 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY791: $i] :
                    ( ~ ( in @ SY791 @ SV558 )
                    | ( subset @ SY791 @ SV511 ) )
              | ~ ! [SY792: $i] :
                    ( ~ ( subset @ SY792 @ SV511 )
                    | ( in @ SY792 @ SV558 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2587]) ).

thf(2692,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2588]) ).

thf(2693,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( in @ SX1 @ SX0 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2589]) ).

thf(2694,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( empty @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2590]) ).

thf(2695,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( empty @ SX1 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2591]) ).

thf(2696,plain,
    ! [SV559: $i,SV512: $i] :
      ( ( ( ( ( set_difference @ SV512 @ ( singleton @ SV559 ) )
           != SV512 ) )
        = $true )
      | ( ( ~ ( in @ SV559 @ SV512 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2592]) ).

thf(2697,plain,
    ! [SV513: $i,SV560: $i] :
      ( ( ( in @ SV560 @ SV513 )
        = $true )
      | ( ( ( set_difference @ SV513 @ ( singleton @ SV560 ) )
          = SV513 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2593]) ).

thf(2698,plain,
    ! [SV514: $i] :
      ( ( ( ~ ! [SY754: $i,SY755: $i] :
                ( ( sK30_B @ SV514 )
               != ( ordered_pair @ SY754 @ SY755 ) )
          | ~ ( in @ ( sK30_B @ SV514 ) @ SV514 ) )
        = $false )
      | ( ( relation @ SV514 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2594]) ).

thf(2699,plain,
    ! [SV515: $i] :
      ( ( ( relation @ SV515 )
        = $false )
      | ( ( ! [SY756: $i] :
              ( ( SY756
                = ( ordered_pair @ ( sK28_C @ SY756 @ SV515 ) @ ( sK29_SY279 @ SY756 @ SV515 ) ) )
              | ~ ( in @ SY756 @ SV515 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2595]) ).

thf(2700,plain,
    ! [SV561: $i,SV516: $i] :
      ( ( ( ( ( set_intersection2 @ SV516 @ SV561 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV516 @ SV561 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2596]) ).

thf(2701,plain,
    ! [SV562: $i,SV517: $i] :
      ( ( ( ~ ( disjoint @ SV517 @ SV562 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV517 @ SV562 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2597]) ).

thf(2702,plain,
    ! [SV563: $i,SV518: $i] :
      ( ( ( ~ ( subset @ SV518 @ SV563 )
          | ~ ( subset @ SV563 @ SV518 ) )
        = $true )
      | ( ( SV518 = SV563 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2598]) ).

thf(2703,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2599]) ).

thf(2704,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2600]) ).

thf(2705,plain,
    ! [SV564: $i,SV519: $i] :
      ( ( ( ~ ( element @ SV519 @ ( powerset @ SV564 ) ) )
        = $true )
      | ( ( subset @ SV519 @ SV564 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2601]) ).

thf(2706,plain,
    ! [SV565: $i,SV520: $i] :
      ( ( ( ~ ( subset @ SV520 @ SV565 ) )
        = $true )
      | ( ( element @ SV520 @ ( powerset @ SV565 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2602]) ).

thf(2707,plain,
    ! [SV427: $i] :
      ( ( ( ! [SY681: $i] :
              ( ~ ( ~ ( ! [SY682: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ SY682 ) @ SV427 )
                      | ~ ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SY681 @ SV427 ) @ ( sK21_SY278 @ SY681 @ SV427 ) ) @ SV427 )
                      | ( in @ ( sK20_C @ SY681 @ SV427 ) @ SY681 ) ) )
              | ( SY681
                = ( relation_dom @ SV427 ) ) ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2603]) ).

thf(2708,plain,
    ! [SV427: $i] :
      ( ( ( ! [SY683: $i] :
              ( ( SY683
               != ( relation_dom @ SV427 ) )
              | ~ ( ~ ! [SY684: $i] :
                        ( ! [SY685: $i] :
                            ~ ( in @ ( ordered_pair @ SY684 @ SY685 ) @ SV427 )
                        | ( in @ SY684 @ SY683 ) )
                  | ~ ! [SY686: $i] :
                        ( ~ ( in @ SY686 @ SY683 )
                        | ( in @ ( ordered_pair @ SY686 @ ( sK19_D @ SY686 @ SY683 @ SV427 ) ) @ SV427 ) ) ) ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2604]) ).

thf(2709,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
                | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
                | ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
            | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
                      | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
                  | ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
                      | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) ) ) )
        | ( SV591
          = ( set_difference @ SV428 @ SV566 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2605]) ).

thf(2710,plain,
    ! [SV567: $i,SV428: $i,SV592: $i] :
      ( ( ( SV592
         != ( set_difference @ SV428 @ SV567 ) )
        | ~ ( ~ ! [SY820: $i] :
                  ( ~ ( in @ SY820 @ SV428 )
                  | ( in @ SY820 @ SV567 )
                  | ( in @ SY820 @ SV592 ) )
            | ~ ~ ( ~ ! [SY821: $i] :
                        ( ~ ( in @ SY821 @ SV592 )
                        | ( in @ SY821 @ SV428 ) )
                  | ~ ! [SY822: $i] :
                        ( ~ ( in @ SY822 @ SV592 )
                        | ~ ( in @ SY822 @ SV567 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2606]) ).

thf(2711,plain,
    ! [SV521: $i] :
      ( ( ( relation @ SV521 )
        = $false )
      | ( ( ( relation_rng @ SV521 )
          = ( relation_dom @ ( relation_inverse @ SV521 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2607]) ).

thf(2712,plain,
    ! [SV522: $i] :
      ( ( ( relation @ SV522 )
        = $false )
      | ( ( ( relation_dom @ SV522 )
          = ( relation_rng @ ( relation_inverse @ SV522 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2608]) ).

thf(2713,plain,
    ! [SV568: $i,SV523: $i] :
      ( ( ( ~ ( in @ SV523 @ SV568 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV523 ) @ SV568 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2609]) ).

thf(2714,plain,
    ! [SV569: $i,SV524: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV524 ) @ SV569 ) )
        = $true )
      | ( ( in @ SV524 @ SV569 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2610]) ).

thf(2715,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
                | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
                | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
            | ~ ~ ( ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
                      | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
                  | ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
                      | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) ) ) )
        | ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2611]) ).

thf(2716,plain,
    ! [SV571: $i,SV429: $i,SV594: $i] :
      ( ( ( SV594
         != ( set_intersection2 @ SV429 @ SV571 ) )
        | ~ ( ~ ! [SY823: $i] :
                  ( ~ ( in @ SY823 @ SV429 )
                  | ~ ( in @ SY823 @ SV571 )
                  | ( in @ SY823 @ SV594 ) )
            | ~ ~ ( ~ ! [SY824: $i] :
                        ( ~ ( in @ SY824 @ SV594 )
                        | ( in @ SY824 @ SV429 ) )
                  | ~ ! [SY825: $i] :
                        ( ~ ( in @ SY825 @ SV594 )
                        | ( in @ SY825 @ SV571 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2612]) ).

thf(2717,plain,
    ! [SV430: $i] :
      ( ( ( ! [SY701: $i] :
              ( ~ ( ~ ( ! [SY702: $i] :
                          ~ ( in @ ( ordered_pair @ SY702 @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                      | ~ ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SY701 @ SV430 ) @ ( sK13_C @ SY701 @ SV430 ) ) @ SV430 )
                      | ( in @ ( sK13_C @ SY701 @ SV430 ) @ SY701 ) ) )
              | ( SY701
                = ( relation_rng @ SV430 ) ) ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2613]) ).

thf(2718,plain,
    ! [SV430: $i] :
      ( ( ( ! [SY703: $i] :
              ( ( SY703
               != ( relation_rng @ SV430 ) )
              | ~ ( ~ ! [SY704: $i] :
                        ( ! [SY705: $i] :
                            ~ ( in @ ( ordered_pair @ SY705 @ SY704 ) @ SV430 )
                        | ( in @ SY704 @ SY703 ) )
                  | ~ ! [SY706: $i] :
                        ( ~ ( in @ SY706 @ SY703 )
                        | ( in @ ( ordered_pair @ ( sK12_D @ SY706 @ SY703 @ SV430 ) @ SY706 ) @ SV430 ) ) ) ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2614]) ).

thf(2719,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ~ ( ~ ( ! [SY803: $i] :
                      ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SY803 )
                      | ~ ( in @ SY803 @ SV525 ) )
                  | ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
              | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ ( sK18_SY276 @ SV572 @ SV525 ) )
                      | ~ ( in @ ( sK18_SY276 @ SV572 @ SV525 ) @ SV525 ) )
                  | ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) ) ) )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2615]) ).

thf(2720,plain,
    ! [SV526: $i,SV573: $i] :
      ( ( ( ( SV573
           != ( union @ SV526 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY804: $i] :
                    ( ! [SY768: $i] :
                        ( ~ ( in @ SY804 @ SY768 )
                        | ~ ( in @ SY768 @ SV526 ) )
                    | ( in @ SY804 @ SV573 ) )
              | ~ ! [SY806: $i] :
                    ( ~ ( in @ SY806 @ SV573 )
                    | ~ ( ~ ( in @ SY806 @ ( sK16_D @ SY806 @ SV573 @ SV526 ) )
                        | ~ ( in @ ( sK16_D @ SY806 @ SV573 @ SV526 ) @ SV526 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2616]) ).

thf(2721,plain,
    ! [SV432: $i,SV480: $i] :
      ( ( ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV432 )
        = $true )
      | ( ( element @ SV432 @ ( powerset @ SV480 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2617]) ).

thf(2722,plain,
    ! [SV432: $i,SV480: $i] :
      ( ( ( ~ ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV480 ) )
        = $true )
      | ( ( element @ SV432 @ ( powerset @ SV480 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2618]) ).

thf(2723,plain,
    ! [SV574: $i,SV527: $i] :
      ( ( ( ( ( set_difference @ SV527 @ SV574 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV527 @ SV574 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2619]) ).

thf(2724,plain,
    ! [SV575: $i,SV528: $i] :
      ( ( ( ~ ( subset @ SV528 @ SV575 ) )
        = $true )
      | ( ( ( set_difference @ SV528 @ SV575 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2620]) ).

thf(2725,plain,
    ! [SV529: $i,SV576: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV529 )
              | ~ ~ ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV576 ) ) )
        = $true )
      | ( ( subset @ SV529 @ SV576 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2621]) ).

thf(2726,plain,
    ! [SV577: $i,SV530: $i] :
      ( ( ( ~ ( subset @ SV530 @ SV577 ) )
        = $true )
      | ( ( ! [SY807: $i] :
              ( ~ ( in @ SY807 @ SV530 )
              | ( in @ SY807 @ SV577 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2622]) ).

thf(2727,plain,
    ! [SV578: $i,SV531: $i] :
      ( ( ( ( ( set_difference @ SV531 @ SV578 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV531 @ SV578 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2623]) ).

thf(2728,plain,
    ! [SV579: $i,SV532: $i] :
      ( ( ( ~ ( subset @ SV532 @ SV579 ) )
        = $true )
      | ( ( ( set_difference @ SV532 @ SV579 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2624]) ).

thf(2729,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                      | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                       != SV433 ) )
                  | ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                      | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                       != SV580 ) ) )
            | ~ ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                  = SV433 )
                | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                  = SV580 ) ) )
        | ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2625]) ).

thf(2730,plain,
    ! [SV581: $i,SV433: $i,SV596: $i] :
      ( ( ( SV596
         != ( unordered_pair @ SV433 @ SV581 ) )
        | ~ ( ~ ! [SY826: $i] :
                  ( ~ ( in @ SY826 @ SV596 )
                  | ( SY826 = SV433 )
                  | ( SY826 = SV581 ) )
            | ~ ~ ( ~ ! [SY827: $i] :
                        ( ( SY827 != SV433 )
                        | ( in @ SY827 @ SV596 ) )
                  | ~ ! [SY828: $i] :
                        ( ( SY828 != SV581 )
                        | ( in @ SY828 @ SV596 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2626]) ).

thf(2731,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( sK40_SY287 @ SX1 @ SX0 ) ) )
                      | ~ ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) )
                  | ~ ( ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX0 )
                          | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX2 ) )
                      | ( in @ ( sK39_C @ SX1 @ SX0 ) @ SX1 ) ) )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2627]) ).

thf(2732,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( ~ ( in @ ( sK38_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ SX2 @ ( sK38_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)],[2628]) ).

thf(2733,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ( SX1 = empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2629]) ).

thf(2734,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1 != empty_set )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2630]) ).

thf(2735,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( ~ ( ~ ( ( ( sK27_C @ SV582 @ SV533 )
                   != SV533 )
                  | ~ ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) )
              | ~ ( ( ( sK27_C @ SV582 @ SV533 )
                    = SV533 )
                  | ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) ) ) )
        = $true )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2631]) ).

thf(2736,plain,
    ! [SV534: $i,SV583: $i] :
      ( ( ( ( SV583
           != ( singleton @ SV534 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY813: $i] :
                    ( ( SY813 != SV534 )
                    | ( in @ SY813 @ SV583 ) )
              | ~ ! [SY814: $i] :
                    ( ~ ( in @ SY814 @ SV583 )
                    | ( SY814 = SV534 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2632]) ).

thf(2737,plain,
    ! [SV584: $i,SV434: $i] :
      ( ( ( ~ ( subset @ SV434 @ SV584 ) )
        = $true )
      | ( ( ! [SY815: $i] : ( subset @ ( cartesian_product2 @ SV434 @ SY815 ) @ ( cartesian_product2 @ SV584 @ SY815 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2633]) ).

thf(2738,plain,
    ! [SV585: $i,SV434: $i] :
      ( ( ( ~ ( subset @ SV434 @ SV585 ) )
        = $true )
      | ( ( ! [SY816: $i] : ( subset @ ( cartesian_product2 @ SY816 @ SV434 ) @ ( cartesian_product2 @ SY816 @ SV585 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2634]) ).

thf(2739,plain,
    ! [SV435: $i] :
      ( ( ( empty @ ( sK8_B @ SV435 ) )
        = $false )
      | ( ( empty @ SV435 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2636]) ).

thf(2740,plain,
    ! [SV360: $i,SV439: $i,SV535: $i] :
      ( ( ( in @ SV535 @ SV439 )
        = $false )
      | ( ( in @ SV535 @ SV360 )
        = $true )
      | ( ( element @ SV439 @ ( powerset @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2637]) ).

thf(2741,plain,
    ! [SV491: $i,SV481: $i,SV442: $i,SV363: $i] :
      ( ( ( subset @ SV363 @ SV442 )
        = $false )
      | ( ( ~ ( subset @ SV481 @ SV491 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV363 @ SV481 ) @ ( cartesian_product2 @ SV442 @ SV491 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2639]) ).

thf(2742,plain,
    ! [SV445: $i,SV482: $i,SV366: $i] :
      ( ( ( subset @ SV366 @ SV482 )
        = $false )
      | ( ( subset @ SV366 @ SV445 )
        = $false )
      | ( ( subset @ SV366 @ ( set_intersection2 @ SV445 @ SV482 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2640]) ).

thf(2743,plain,
    ! [SV367: $i,SV483: $i,SV446: $i] :
      ( ( ( subset @ SV446 @ SV483 )
        = $false )
      | ( ( subset @ SV367 @ SV446 )
        = $false )
      | ( ( subset @ SV367 @ SV483 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2641]) ).

thf(2744,plain,
    ! [SV494: $i,SV378: $i] :
      ( ( ( ~ ( subset @ ( relation_rng @ SV378 ) @ ( relation_dom @ SV494 ) ) )
        = $true )
      | ( ( ( relation_dom @ ( relation_composition @ SV378 @ SV494 ) )
          = ( relation_dom @ SV378 ) )
        = $true )
      | ( ( relation @ SV494 )
        = $false )
      | ( ( relation @ SV378 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2644]) ).

thf(2745,plain,
    ! [SV495: $i,SV380: $i] :
      ( ( ( ~ ( subset @ ( relation_dom @ SV380 ) @ ( relation_rng @ SV495 ) ) )
        = $true )
      | ( ( ( relation_rng @ ( relation_composition @ SV495 @ SV380 ) )
          = ( relation_rng @ SV380 ) )
        = $true )
      | ( ( relation @ SV495 )
        = $false )
      | ( ( relation @ SV380 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2645]) ).

thf(2746,plain,
    ! [SV484: $i,SV457: $i,SV384: $i] :
      ( ( ( subset @ SV384 @ SV457 )
        = $false )
      | ( ( disjoint @ SV457 @ SV484 )
        = $false )
      | ( ( disjoint @ SV384 @ SV484 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2646]) ).

thf(2747,plain,
    ! [SV388: $i,SV460: $i,SV485: $i] :
      ( ( ( subset @ SV485 @ SV460 )
        = $false )
      | ( ( subset @ SV388 @ SV460 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV388 @ SV485 ) @ SV460 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2647]) ).

thf(2748,plain,
    ! [SV489: $i,SV475: $i,SV415: $i] :
      ( ( ( in @ SV415 @ SV475 )
        = $false )
      | ( ( element @ SV475 @ ( powerset @ SV489 ) )
        = $false )
      | ( ( element @ SV415 @ SV489 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2650]) ).

thf(2749,plain,
    ! [SV490: $i,SV476: $i,SV416: $i] :
      ( ( ( in @ SV416 @ SV476 )
        = $false )
      | ( ( element @ SV476 @ ( powerset @ SV490 ) )
        = $false )
      | ( ( ~ ( empty @ SV490 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2651]) ).

thf(2750,plain,
    ! [SV539: $i,SV586: $i,SV419: $i] :
      ( ( ( ~ ( in @ SV419 @ SV586 )
          | ~ ( in @ SV539 @ SV586 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV419 @ SV539 ) @ SV586 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2653]) ).

thf(2751,plain,
    ! [SV419: $i] :
      ( ( ! [SY648: $i,SY649: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV419 @ SY648 ) @ SY649 )
            | ( in @ SV419 @ SY649 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2654]) ).

thf(2752,plain,
    ! [SV419: $i] :
      ( ( ! [SY650: $i,SY651: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV419 @ SY650 ) @ SY651 )
            | ( in @ SY650 @ SY651 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2655]) ).

thf(2753,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( ~ ( relation @ SV597 )
          | ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
                  | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
                  | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) ) )
          | ( SV597
            = ( relation_inverse @ SV420 ) ) )
        = $true )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2656]) ).

thf(2754,plain,
    ! [SV420: $i,SV598: $i] :
      ( ( ( ~ ( relation @ SV598 )
          | ( SV598
           != ( relation_inverse @ SV420 ) )
          | ~ ( ~ ! [SY829: $i,SY830: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY829 @ SY830 ) @ SV598 )
                    | ( in @ ( ordered_pair @ SY830 @ SY829 ) @ SV420 ) )
              | ~ ! [SY831: $i,SY832: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY832 @ SY831 ) @ SV420 )
                    | ( in @ ( ordered_pair @ SY831 @ SY832 ) @ SV598 ) ) ) )
        = $true )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2657]) ).

thf(2755,plain,
    ! [SV541: $i,SV498: $i,SV599: $i] :
      ( ( ( ~ ( in @ SV599 @ ( set_intersection2 @ SV498 @ SV541 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV498 @ SV541 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2659]) ).

thf(2756,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 ) )
        = $true )
      | ( ( ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) )
        = $true )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2660]) ).

thf(2757,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
        = $true )
      | ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 )
        = $true )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2661]) ).

thf(2758,plain,
    ! [SV542: $i,SV422: $i,SV587: $i] :
      ( ( ( ~ ( relation @ SV587 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV422 @ SV542 ) @ SV587 )
          | ( in @ SV422 @ ( relation_dom @ SV587 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2662]) ).

thf(2759,plain,
    ! [SV543: $i,SV422: $i,SV588: $i] :
      ( ( ( ~ ( relation @ SV588 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV422 @ SV543 ) @ SV588 )
          | ( in @ SV543 @ ( relation_rng @ SV588 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2663]) ).

thf(2760,plain,
    ! [SV544: $i,SV499: $i] :
      ( ( ( subset @ SV499 @ ( singleton @ SV544 ) )
        = $false )
      | ( ( ( SV499 = empty_set )
          | ( SV499
            = ( singleton @ SV544 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2664]) ).

thf(2761,plain,
    ! [SV600: $i] :
      ( ( ( SV600 != empty_set )
        | ! [SY833: $i] : ( subset @ SV600 @ ( singleton @ SY833 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2665]) ).

thf(2762,plain,
    ! [SV601: $i] :
      ( ( ! [SY834: $i] :
            ( ( SV601
             != ( singleton @ SY834 ) )
            | ( subset @ SV601 @ ( singleton @ SY834 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2666]) ).

thf(2763,plain,
    ! [SV545: $i,SV500: $i] :
      ( ( ( ( set_difference @ SV500 @ SV545 )
          = SV500 )
        = $false )
      | ( ( disjoint @ SV500 @ SV545 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2667]) ).

thf(2764,plain,
    ! [SV546: $i,SV501: $i] :
      ( ( ( disjoint @ SV501 @ SV546 )
        = $false )
      | ( ( ( set_difference @ SV501 @ SV546 )
          = SV501 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2668]) ).

thf(2765,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                        | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) )
                    | ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                        | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) )
              | ~ ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                  | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 )
                  | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2669]) ).

thf(2766,plain,
    ! [SV548: $i,SV423: $i,SV590: $i] :
      ( ( ( ( SV590
           != ( set_union2 @ SV423 @ SV548 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY817: $i] :
                    ( ~ ( in @ SY817 @ SV590 )
                    | ( in @ SY817 @ SV423 )
                    | ( in @ SY817 @ SV548 ) )
              | ~ ~ ( ~ ! [SY818: $i] :
                          ( ~ ( in @ SY818 @ SV423 )
                          | ( in @ SY818 @ SV590 ) )
                    | ~ ! [SY819: $i] :
                          ( ~ ( in @ SY819 @ SV548 )
                          | ( in @ SY819 @ SV590 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2670]) ).

thf(2767,plain,
    ! [SV549: $i,SV502: $i] :
      ( ( ( subset @ SV502 @ ( singleton @ SV549 ) )
        = $false )
      | ( ( ( SV502 = empty_set )
          | ( SV502
            = ( singleton @ SV549 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2671]) ).

thf(2768,plain,
    ! [SV602: $i] :
      ( ( ( SV602 != empty_set )
        | ! [SY835: $i] : ( subset @ SV602 @ ( singleton @ SY835 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2672]) ).

thf(2769,plain,
    ! [SV603: $i] :
      ( ( ! [SY836: $i] :
            ( ( SV603
             != ( singleton @ SY836 ) )
            | ( subset @ SV603 @ ( singleton @ SY836 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2673]) ).

thf(2770,plain,
    ! [SV550: $i,SV503: $i] :
      ( ( ( SV503 = SV550 )
        = $true )
      | ( ( ~ ( subset @ SV503 @ SV550 ) )
        = $true )
      | ( ( proper_subset @ SV503 @ SV550 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2674]) ).

thf(2771,plain,
    ! [SV604: $i] :
      ( ( ! [SY837: $i] :
            ( ~ ( proper_subset @ SV604 @ SY837 )
            | ( SV604 != SY837 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2675]) ).

thf(2772,plain,
    ! [SV605: $i] :
      ( ( ! [SY838: $i] :
            ( ~ ( proper_subset @ SV605 @ SY838 )
            | ( subset @ SV605 @ SY838 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2676]) ).

thf(2773,plain,
    ! [SV504: $i,SV551: $i] :
      ( ( ( ~ ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV504 )
          | ~ ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV551 ) )
        = $false )
      | ( ( disjoint @ SV504 @ SV551 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2677]) ).

thf(2774,plain,
    ! [SV552: $i,SV505: $i,SV606: $i] :
      ( ( ( ~ ( in @ SV606 @ SV505 )
          | ~ ( in @ SV606 @ SV552 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV505 @ SV552 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2678]) ).

thf(2775,plain,
    ! [SV424: $i,SV553: $i] :
      ( ( ( ~ ( subset @ SV553 @ ( sK35_B @ SV424 ) ) )
        = $true )
      | ( ( are_equipotent @ SV553 @ ( sK35_B @ SV424 ) )
        = $true )
      | ( ( in @ SV553 @ ( sK35_B @ SV424 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2679]) ).

thf(2776,plain,
    ! [SV424: $i] :
      ( ( ! [SY671: $i] :
            ( ~ ( in @ SY671 @ ( sK35_B @ SV424 ) )
            | ( in @ ( powerset @ SY671 ) @ ( sK35_B @ SV424 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2680]) ).

thf(2777,plain,
    ! [SV424: $i] :
      ( ( ~ ( ~ ! [SY672: $i,SY673: $i] :
                  ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
                  | ~ ( subset @ SY673 @ SY672 )
                  | ( in @ SY673 @ ( sK35_B @ SV424 ) ) )
            | ~ ( in @ SV424 @ ( sK35_B @ SV424 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2681]) ).

thf(2778,plain,
    ! [SV425: $i,SV607: $i] :
      ( ( ( ~ ( relation @ SV607 )
          | ~ ( subset @ SV425 @ SV607 )
          | ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SV607 ) ) )
        = $true )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2682]) ).

thf(2779,plain,
    ! [SV425: $i,SV608: $i] :
      ( ( ( ~ ( relation @ SV608 )
          | ~ ( subset @ SV425 @ SV608 )
          | ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SV608 ) ) )
        = $true )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2683]) ).

thf(2780,plain,
    ! [SV554: $i,SV506: $i] :
      ( ( ( in @ SV506 @ SV554 )
        = $false )
      | ( ( subset @ ( singleton @ SV506 ) @ SV554 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2684]) ).

thf(2781,plain,
    ! [SV555: $i,SV507: $i] :
      ( ( ( subset @ ( singleton @ SV507 ) @ SV555 )
        = $false )
      | ( ( in @ SV507 @ SV555 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2685]) ).

thf(2782,plain,
    ! [SV509: $i,SV609: $i] :
      ( ( ( ~ ( in @ SV609 @ SV509 ) )
        = $true )
      | ( ( SV509 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2686]) ).

thf(2783,plain,
    ! [SV426: $i,SV556: $i] :
      ( ( ( ~ ( subset @ SV556 @ ( sK1_B @ SV426 ) ) )
        = $true )
      | ( ( are_equipotent @ SV556 @ ( sK1_B @ SV426 ) )
        = $true )
      | ( ( in @ SV556 @ ( sK1_B @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2687]) ).

thf(2784,plain,
    ! [SV426: $i] :
      ( ( ! [SY677: $i] :
            ( ~ ( ~ ! [SY678: $i] :
                      ( ~ ( subset @ SY678 @ SY677 )
                      | ( in @ SY678 @ ( sK2_SY267 @ SY677 @ SV426 ) ) )
                | ~ ( in @ ( sK2_SY267 @ SY677 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
            | ~ ( in @ SY677 @ ( sK1_B @ SV426 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2688]) ).

thf(2785,plain,
    ! [SV426: $i] :
      ( ( ~ ( ~ ! [SY679: $i,SY680: $i] :
                  ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
                  | ~ ( subset @ SY680 @ SY679 )
                  | ( in @ SY680 @ ( sK1_B @ SV426 ) ) )
            | ~ ( in @ SV426 @ ( sK1_B @ SV426 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2689]) ).

thf(2786,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
              | ~ ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) )
          | ~ ( ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
              | ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) ) )
        = $false )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2690]) ).

thf(2787,plain,
    ! [SV511: $i,SV558: $i] :
      ( ( ( SV558
          = ( powerset @ SV511 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY791: $i] :
                    ( ~ ( in @ SY791 @ SV558 )
                    | ( subset @ SY791 @ SV511 ) )
              | ~ ! [SY792: $i] :
                    ( ~ ( subset @ SY792 @ SV511 )
                    | ( in @ SY792 @ SV558 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2691]) ).

thf(2788,plain,
    ! [SV610: $i] :
      ( ( ( empty @ SV610 )
        | ! [SY839: $i] :
            ( ~ ( element @ SY839 @ SV610 )
            | ( in @ SY839 @ SV610 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2692]) ).

thf(2789,plain,
    ! [SV611: $i] :
      ( ( ( empty @ SV611 )
        | ! [SY840: $i] :
            ( ~ ( in @ SY840 @ SV611 )
            | ( element @ SY840 @ SV611 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2693]) ).

thf(2790,plain,
    ! [SV612: $i] :
      ( ( ~ ( empty @ SV612 )
        | ! [SY841: $i] :
            ( ~ ( element @ SY841 @ SV612 )
            | ( empty @ SY841 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2694]) ).

thf(2791,plain,
    ! [SV613: $i] :
      ( ( ~ ( empty @ SV613 )
        | ! [SY842: $i] :
            ( ~ ( empty @ SY842 )
            | ( element @ SY842 @ SV613 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2695]) ).

thf(2792,plain,
    ! [SV559: $i,SV512: $i] :
      ( ( ( ( set_difference @ SV512 @ ( singleton @ SV559 ) )
          = SV512 )
        = $false )
      | ( ( ~ ( in @ SV559 @ SV512 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2696]) ).

thf(2793,plain,
    ! [SV514: $i] :
      ( ( ( ~ ! [SY754: $i,SY755: $i] :
                ( ( sK30_B @ SV514 )
               != ( ordered_pair @ SY754 @ SY755 ) ) )
        = $false )
      | ( ( relation @ SV514 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2698]) ).

thf(2794,plain,
    ! [SV514: $i] :
      ( ( ( ~ ( in @ ( sK30_B @ SV514 ) @ SV514 ) )
        = $false )
      | ( ( relation @ SV514 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2698]) ).

thf(2795,plain,
    ! [SV515: $i,SV614: $i] :
      ( ( ( ( SV614
            = ( ordered_pair @ ( sK28_C @ SV614 @ SV515 ) @ ( sK29_SY279 @ SV614 @ SV515 ) ) )
          | ~ ( in @ SV614 @ SV515 ) )
        = $true )
      | ( ( relation @ SV515 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2699]) ).

thf(2796,plain,
    ! [SV561: $i,SV516: $i] :
      ( ( ( ( set_intersection2 @ SV516 @ SV561 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV516 @ SV561 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2700]) ).

thf(2797,plain,
    ! [SV562: $i,SV517: $i] :
      ( ( ( disjoint @ SV517 @ SV562 )
        = $false )
      | ( ( ( set_intersection2 @ SV517 @ SV562 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2701]) ).

thf(2798,plain,
    ! [SV563: $i,SV518: $i] :
      ( ( ( ~ ( subset @ SV518 @ SV563 ) )
        = $true )
      | ( ( ~ ( subset @ SV563 @ SV518 ) )
        = $true )
      | ( ( SV518 = SV563 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2702]) ).

thf(2799,plain,
    ! [SV615: $i] :
      ( ( ! [SY843: $i] :
            ( ( SV615 != SY843 )
            | ( subset @ SV615 @ SY843 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2703]) ).

thf(2800,plain,
    ! [SV616: $i] :
      ( ( ! [SY844: $i] :
            ( ( SV616 != SY844 )
            | ( subset @ SY844 @ SV616 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2704]) ).

thf(2801,plain,
    ! [SV564: $i,SV519: $i] :
      ( ( ( element @ SV519 @ ( powerset @ SV564 ) )
        = $false )
      | ( ( subset @ SV519 @ SV564 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2705]) ).

thf(2802,plain,
    ! [SV565: $i,SV520: $i] :
      ( ( ( subset @ SV520 @ SV565 )
        = $false )
      | ( ( element @ SV520 @ ( powerset @ SV565 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2706]) ).

thf(2803,plain,
    ! [SV427: $i,SV617: $i] :
      ( ( ( ~ ( ~ ( ! [SY845: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ SY845 ) @ SV427 )
                  | ~ ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ ( sK21_SY278 @ SV617 @ SV427 ) ) @ SV427 )
                  | ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) ) )
          | ( SV617
            = ( relation_dom @ SV427 ) ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2707]) ).

thf(2804,plain,
    ! [SV427: $i,SV618: $i] :
      ( ( ( ( SV618
           != ( relation_dom @ SV427 ) )
          | ~ ( ~ ! [SY846: $i] :
                    ( ! [SY685: $i] :
                        ~ ( in @ ( ordered_pair @ SY846 @ SY685 ) @ SV427 )
                    | ( in @ SY846 @ SV618 ) )
              | ~ ! [SY848: $i] :
                    ( ~ ( in @ SY848 @ SV618 )
                    | ( in @ ( ordered_pair @ SY848 @ ( sK19_D @ SY848 @ SV618 @ SV427 ) ) @ SV427 ) ) ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2708]) ).

thf(2805,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
                  | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
                  | ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
              | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
                        | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
                    | ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
                        | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) ) ) ) )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2709]) ).

thf(2806,plain,
    ! [SV567: $i,SV428: $i,SV592: $i] :
      ( ( ( ( SV592
           != ( set_difference @ SV428 @ SV567 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY820: $i] :
                    ( ~ ( in @ SY820 @ SV428 )
                    | ( in @ SY820 @ SV567 )
                    | ( in @ SY820 @ SV592 ) )
              | ~ ~ ( ~ ! [SY821: $i] :
                          ( ~ ( in @ SY821 @ SV592 )
                          | ( in @ SY821 @ SV428 ) )
                    | ~ ! [SY822: $i] :
                          ( ~ ( in @ SY822 @ SV592 )
                          | ~ ( in @ SY822 @ SV567 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2710]) ).

thf(2807,plain,
    ! [SV568: $i,SV523: $i] :
      ( ( ( in @ SV523 @ SV568 )
        = $false )
      | ( ( subset @ ( singleton @ SV523 ) @ SV568 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2713]) ).

thf(2808,plain,
    ! [SV569: $i,SV524: $i] :
      ( ( ( subset @ ( singleton @ SV524 ) @ SV569 )
        = $false )
      | ( ( in @ SV524 @ SV569 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2714]) ).

thf(2809,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
                  | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
                  | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
              | ~ ~ ( ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
                        | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
                    | ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
                        | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) ) ) ) )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2715]) ).

thf(2810,plain,
    ! [SV571: $i,SV429: $i,SV594: $i] :
      ( ( ( ( SV594
           != ( set_intersection2 @ SV429 @ SV571 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY823: $i] :
                    ( ~ ( in @ SY823 @ SV429 )
                    | ~ ( in @ SY823 @ SV571 )
                    | ( in @ SY823 @ SV594 ) )
              | ~ ~ ( ~ ! [SY824: $i] :
                          ( ~ ( in @ SY824 @ SV594 )
                          | ( in @ SY824 @ SV429 ) )
                    | ~ ! [SY825: $i] :
                          ( ~ ( in @ SY825 @ SV594 )
                          | ( in @ SY825 @ SV571 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2716]) ).

thf(2811,plain,
    ! [SV430: $i,SV619: $i] :
      ( ( ( ~ ( ~ ( ! [SY849: $i] :
                      ~ ( in @ ( ordered_pair @ SY849 @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
                  | ~ ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV619 @ SV430 ) @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
                  | ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) ) )
          | ( SV619
            = ( relation_rng @ SV430 ) ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2717]) ).

thf(2812,plain,
    ! [SV430: $i,SV620: $i] :
      ( ( ( ( SV620
           != ( relation_rng @ SV430 ) )
          | ~ ( ~ ! [SY850: $i] :
                    ( ! [SY705: $i] :
                        ~ ( in @ ( ordered_pair @ SY705 @ SY850 ) @ SV430 )
                    | ( in @ SY850 @ SV620 ) )
              | ~ ! [SY852: $i] :
                    ( ~ ( in @ SY852 @ SV620 )
                    | ( in @ ( ordered_pair @ ( sK12_D @ SY852 @ SV620 @ SV430 ) @ SY852 ) @ SV430 ) ) ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2718]) ).

thf(2813,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ~ ( ! [SY803: $i] :
                  ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SY803 )
                  | ~ ( in @ SY803 @ SV525 ) )
              | ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
          | ~ ( ~ ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ ( sK18_SY276 @ SV572 @ SV525 ) )
                  | ~ ( in @ ( sK18_SY276 @ SV572 @ SV525 ) @ SV525 ) )
              | ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) ) )
        = $false )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2719]) ).

thf(2814,plain,
    ! [SV526: $i,SV573: $i] :
      ( ( ( SV573
          = ( union @ SV526 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY804: $i] :
                    ( ! [SY768: $i] :
                        ( ~ ( in @ SY804 @ SY768 )
                        | ~ ( in @ SY768 @ SV526 ) )
                    | ( in @ SY804 @ SV573 ) )
              | ~ ! [SY806: $i] :
                    ( ~ ( in @ SY806 @ SV573 )
                    | ~ ( ~ ( in @ SY806 @ ( sK16_D @ SY806 @ SV573 @ SV526 ) )
                        | ~ ( in @ ( sK16_D @ SY806 @ SV573 @ SV526 ) @ SV526 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2720]) ).

thf(2815,plain,
    ! [SV432: $i,SV480: $i] :
      ( ( ( in @ ( sK36_C @ SV480 @ SV432 ) @ SV480 )
        = $false )
      | ( ( element @ SV432 @ ( powerset @ SV480 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2722]) ).

thf(2816,plain,
    ! [SV574: $i,SV527: $i] :
      ( ( ( ( set_difference @ SV527 @ SV574 )
          = empty_set )
        = $false )
      | ( ( subset @ SV527 @ SV574 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2723]) ).

thf(2817,plain,
    ! [SV575: $i,SV528: $i] :
      ( ( ( subset @ SV528 @ SV575 )
        = $false )
      | ( ( ( set_difference @ SV528 @ SV575 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2724]) ).

thf(2818,plain,
    ! [SV529: $i,SV576: $i] :
      ( ( ( ~ ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV529 )
          | ~ ~ ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV576 ) )
        = $false )
      | ( ( subset @ SV529 @ SV576 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2725]) ).

thf(2819,plain,
    ! [SV577: $i,SV530: $i] :
      ( ( ( subset @ SV530 @ SV577 )
        = $false )
      | ( ( ! [SY807: $i] :
              ( ~ ( in @ SY807 @ SV530 )
              | ( in @ SY807 @ SV577 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2726]) ).

thf(2820,plain,
    ! [SV578: $i,SV531: $i] :
      ( ( ( ( set_difference @ SV531 @ SV578 )
          = empty_set )
        = $false )
      | ( ( subset @ SV531 @ SV578 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2727]) ).

thf(2821,plain,
    ! [SV579: $i,SV532: $i] :
      ( ( ( subset @ SV532 @ SV579 )
        = $false )
      | ( ( ( set_difference @ SV532 @ SV579 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2728]) ).

thf(2822,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                        | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                         != SV433 ) )
                    | ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                        | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                         != SV580 ) ) )
              | ~ ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                  | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                    = SV433 )
                  | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                    = SV580 ) ) ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2729]) ).

thf(2823,plain,
    ! [SV581: $i,SV433: $i,SV596: $i] :
      ( ( ( ( SV596
           != ( unordered_pair @ SV433 @ SV581 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY826: $i] :
                    ( ~ ( in @ SY826 @ SV596 )
                    | ( SY826 = SV433 )
                    | ( SY826 = SV581 ) )
              | ~ ~ ( ~ ! [SY827: $i] :
                          ( ( SY827 != SV433 )
                          | ( in @ SY827 @ SV596 ) )
                    | ~ ! [SY828: $i] :
                          ( ( SY828 != SV581 )
                          | ( in @ SY828 @ SV596 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2730]) ).

thf(2824,plain,
    ! [SV621: $i] :
      ( ( ( SV621 = empty_set )
        | ! [SY853: $i] :
            ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SY853 @ SV621 ) @ SV621 )
                        | ~ ~ ( in @ ( sK39_C @ SY853 @ SV621 ) @ ( sK40_SY287 @ SY853 @ SV621 ) ) )
                    | ~ ( in @ ( sK39_C @ SY853 @ SV621 ) @ SY853 ) )
                | ~ ( ! [SY854: $i] :
                        ( ~ ( in @ SY854 @ SV621 )
                        | ( in @ ( sK39_C @ SY853 @ SV621 ) @ SY854 ) )
                    | ( in @ ( sK39_C @ SY853 @ SV621 ) @ SY853 ) ) )
            | ( SY853
              = ( set_meet @ SV621 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2731]) ).

thf(2825,plain,
    ! [SV622: $i] :
      ( ( ( SV622 = empty_set )
        | ! [SY855: $i] :
            ( ( SY855
             != ( set_meet @ SV622 ) )
            | ~ ( ~ ! [SY856: $i] :
                      ( ~ ( ~ ( in @ ( sK38_D @ SY856 @ SY855 @ SV622 ) @ SV622 )
                          | ~ ~ ( in @ SY856 @ ( sK38_D @ SY856 @ SY855 @ SV622 ) ) )
                      | ( in @ SY856 @ SY855 ) )
                | ~ ! [SY857: $i] :
                      ( ~ ( in @ SY857 @ SY855 )
                      | ! [SY858: $i] :
                          ( ~ ( in @ SY858 @ SV622 )
                          | ( in @ SY857 @ SY858 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2732]) ).

thf(2826,plain,
    ! [SV623: $i] :
      ( ( ( SV623 != empty_set )
        | ! [SY859: $i] :
            ( ( SY859
             != ( set_meet @ SV623 ) )
            | ( SY859 = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2733]) ).

thf(2827,plain,
    ! [SV624: $i] :
      ( ( ( SV624 != empty_set )
        | ! [SY860: $i] :
            ( ( SY860 != empty_set )
            | ( SY860
              = ( set_meet @ SV624 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2734]) ).

thf(2828,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( ~ ( ( ( sK27_C @ SV582 @ SV533 )
               != SV533 )
              | ~ ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) )
          | ~ ( ( ( sK27_C @ SV582 @ SV533 )
                = SV533 )
              | ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) ) )
        = $false )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2735]) ).

thf(2829,plain,
    ! [SV534: $i,SV583: $i] :
      ( ( ( SV583
          = ( singleton @ SV534 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY813: $i] :
                    ( ( SY813 != SV534 )
                    | ( in @ SY813 @ SV583 ) )
              | ~ ! [SY814: $i] :
                    ( ~ ( in @ SY814 @ SV583 )
                    | ( SY814 = SV534 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2736]) ).

thf(2830,plain,
    ! [SV584: $i,SV434: $i] :
      ( ( ( subset @ SV434 @ SV584 )
        = $false )
      | ( ( ! [SY815: $i] : ( subset @ ( cartesian_product2 @ SV434 @ SY815 ) @ ( cartesian_product2 @ SV584 @ SY815 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2737]) ).

thf(2831,plain,
    ! [SV585: $i,SV434: $i] :
      ( ( ( subset @ SV434 @ SV585 )
        = $false )
      | ( ( ! [SY816: $i] : ( subset @ ( cartesian_product2 @ SY816 @ SV434 ) @ ( cartesian_product2 @ SY816 @ SV585 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2738]) ).

thf(2832,plain,
    ! [SV442: $i,SV363: $i,SV491: $i,SV481: $i] :
      ( ( ( subset @ SV481 @ SV491 )
        = $false )
      | ( ( subset @ SV363 @ SV442 )
        = $false )
      | ( ( subset @ ( cartesian_product2 @ SV363 @ SV481 ) @ ( cartesian_product2 @ SV442 @ SV491 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2741]) ).

thf(2833,plain,
    ! [SV494: $i,SV378: $i] :
      ( ( ( subset @ ( relation_rng @ SV378 ) @ ( relation_dom @ SV494 ) )
        = $false )
      | ( ( ( relation_dom @ ( relation_composition @ SV378 @ SV494 ) )
          = ( relation_dom @ SV378 ) )
        = $true )
      | ( ( relation @ SV494 )
        = $false )
      | ( ( relation @ SV378 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2744]) ).

thf(2834,plain,
    ! [SV495: $i,SV380: $i] :
      ( ( ( subset @ ( relation_dom @ SV380 ) @ ( relation_rng @ SV495 ) )
        = $false )
      | ( ( ( relation_rng @ ( relation_composition @ SV495 @ SV380 ) )
          = ( relation_rng @ SV380 ) )
        = $true )
      | ( ( relation @ SV495 )
        = $false )
      | ( ( relation @ SV380 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2745]) ).

thf(2835,plain,
    ! [SV416: $i,SV476: $i,SV490: $i] :
      ( ( ( empty @ SV490 )
        = $false )
      | ( ( element @ SV476 @ ( powerset @ SV490 ) )
        = $false )
      | ( ( in @ SV416 @ SV476 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2749]) ).

thf(2836,plain,
    ! [SV539: $i,SV586: $i,SV419: $i] :
      ( ( ( ~ ( in @ SV419 @ SV586 ) )
        = $true )
      | ( ( ~ ( in @ SV539 @ SV586 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV419 @ SV539 ) @ SV586 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2750]) ).

thf(2837,plain,
    ! [SV625: $i,SV419: $i] :
      ( ( ! [SY861: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV419 @ SV625 ) @ SY861 )
            | ( in @ SV419 @ SY861 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2751]) ).

thf(2838,plain,
    ! [SV626: $i,SV419: $i] :
      ( ( ! [SY862: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV419 @ SV626 ) @ SY862 )
            | ( in @ SV626 @ SY862 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2752]) ).

thf(2839,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( ~ ( relation @ SV597 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
                  | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
                  | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) ) )
          | ( SV597
            = ( relation_inverse @ SV420 ) ) )
        = $true )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2753]) ).

thf(2840,plain,
    ! [SV420: $i,SV598: $i] :
      ( ( ( ~ ( relation @ SV598 ) )
        = $true )
      | ( ( ( SV598
           != ( relation_inverse @ SV420 ) )
          | ~ ( ~ ! [SY829: $i,SY830: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY829 @ SY830 ) @ SV598 )
                    | ( in @ ( ordered_pair @ SY830 @ SY829 ) @ SV420 ) )
              | ~ ! [SY831: $i,SY832: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY832 @ SY831 ) @ SV420 )
                    | ( in @ ( ordered_pair @ SY831 @ SY832 ) @ SV598 ) ) ) )
        = $true )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2754]) ).

thf(2841,plain,
    ! [SV541: $i,SV498: $i,SV599: $i] :
      ( ( ( in @ SV599 @ ( set_intersection2 @ SV498 @ SV541 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV498 @ SV541 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2755]) ).

thf(2842,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
        = $false )
      | ( ( ~ ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 ) )
        = $true )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2756]) ).

thf(2843,plain,
    ! [SV542: $i,SV422: $i,SV587: $i] :
      ( ( ( relation @ SV587 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV422 @ SV542 ) @ SV587 )
          | ( in @ SV422 @ ( relation_dom @ SV587 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2758]) ).

thf(2844,plain,
    ! [SV543: $i,SV422: $i,SV588: $i] :
      ( ( ( relation @ SV588 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV422 @ SV543 ) @ SV588 )
          | ( in @ SV543 @ ( relation_rng @ SV588 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2759]) ).

thf(2845,plain,
    ! [SV544: $i,SV499: $i] :
      ( ( ( SV499 = empty_set )
        = $true )
      | ( ( SV499
          = ( singleton @ SV544 ) )
        = $true )
      | ( ( subset @ SV499 @ ( singleton @ SV544 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2760]) ).

thf(2846,plain,
    ! [SV600: $i] :
      ( ( ( ( SV600 != empty_set ) )
        = $true )
      | ( ( ! [SY833: $i] : ( subset @ SV600 @ ( singleton @ SY833 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2761]) ).

thf(2847,plain,
    ! [SV627: $i,SV601: $i] :
      ( ( ( SV601
         != ( singleton @ SV627 ) )
        | ( subset @ SV601 @ ( singleton @ SV627 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2762]) ).

thf(2848,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                    | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) )
                | ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                    | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) )
          | ~ ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
              | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 )
              | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) )
        = $false )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2765]) ).

thf(2849,plain,
    ! [SV548: $i,SV423: $i,SV590: $i] :
      ( ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY817: $i] :
                    ( ~ ( in @ SY817 @ SV590 )
                    | ( in @ SY817 @ SV423 )
                    | ( in @ SY817 @ SV548 ) )
              | ~ ~ ( ~ ! [SY818: $i] :
                          ( ~ ( in @ SY818 @ SV423 )
                          | ( in @ SY818 @ SV590 ) )
                    | ~ ! [SY819: $i] :
                          ( ~ ( in @ SY819 @ SV548 )
                          | ( in @ SY819 @ SV590 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2766]) ).

thf(2850,plain,
    ! [SV549: $i,SV502: $i] :
      ( ( ( SV502 = empty_set )
        = $true )
      | ( ( SV502
          = ( singleton @ SV549 ) )
        = $true )
      | ( ( subset @ SV502 @ ( singleton @ SV549 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2767]) ).

thf(2851,plain,
    ! [SV602: $i] :
      ( ( ( ( SV602 != empty_set ) )
        = $true )
      | ( ( ! [SY835: $i] : ( subset @ SV602 @ ( singleton @ SY835 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2768]) ).

thf(2852,plain,
    ! [SV628: $i,SV603: $i] :
      ( ( ( SV603
         != ( singleton @ SV628 ) )
        | ( subset @ SV603 @ ( singleton @ SV628 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2769]) ).

thf(2853,plain,
    ! [SV550: $i,SV503: $i] :
      ( ( ( subset @ SV503 @ SV550 )
        = $false )
      | ( ( SV503 = SV550 )
        = $true )
      | ( ( proper_subset @ SV503 @ SV550 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2770]) ).

thf(2854,plain,
    ! [SV629: $i,SV604: $i] :
      ( ( ~ ( proper_subset @ SV604 @ SV629 )
        | ( SV604 != SV629 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2771]) ).

thf(2855,plain,
    ! [SV630: $i,SV605: $i] :
      ( ( ~ ( proper_subset @ SV605 @ SV630 )
        | ( subset @ SV605 @ SV630 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2772]) ).

thf(2856,plain,
    ! [SV504: $i,SV551: $i] :
      ( ( ( ~ ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV504 ) )
        = $false )
      | ( ( disjoint @ SV504 @ SV551 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2773]) ).

thf(2857,plain,
    ! [SV504: $i,SV551: $i] :
      ( ( ( ~ ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV551 ) )
        = $false )
      | ( ( disjoint @ SV504 @ SV551 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2773]) ).

thf(2858,plain,
    ! [SV552: $i,SV505: $i,SV606: $i] :
      ( ( ( ~ ( in @ SV606 @ SV505 ) )
        = $true )
      | ( ( ~ ( in @ SV606 @ SV552 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV505 @ SV552 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2774]) ).

thf(2859,plain,
    ! [SV424: $i,SV553: $i] :
      ( ( ( subset @ SV553 @ ( sK35_B @ SV424 ) )
        = $false )
      | ( ( are_equipotent @ SV553 @ ( sK35_B @ SV424 ) )
        = $true )
      | ( ( in @ SV553 @ ( sK35_B @ SV424 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2775]) ).

thf(2860,plain,
    ! [SV424: $i,SV631: $i] :
      ( ( ~ ( in @ SV631 @ ( sK35_B @ SV424 ) )
        | ( in @ ( powerset @ SV631 ) @ ( sK35_B @ SV424 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2776]) ).

thf(2861,plain,
    ! [SV424: $i] :
      ( ( ~ ! [SY672: $i,SY673: $i] :
              ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
              | ~ ( subset @ SY673 @ SY672 )
              | ( in @ SY673 @ ( sK35_B @ SV424 ) ) )
        | ~ ( in @ SV424 @ ( sK35_B @ SV424 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2777]) ).

thf(2862,plain,
    ! [SV425: $i,SV607: $i] :
      ( ( ( ~ ( relation @ SV607 ) )
        = $true )
      | ( ( ~ ( subset @ SV425 @ SV607 )
          | ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SV607 ) ) )
        = $true )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2778]) ).

thf(2863,plain,
    ! [SV425: $i,SV608: $i] :
      ( ( ( ~ ( relation @ SV608 ) )
        = $true )
      | ( ( ~ ( subset @ SV425 @ SV608 )
          | ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SV608 ) ) )
        = $true )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2779]) ).

thf(2864,plain,
    ! [SV509: $i,SV609: $i] :
      ( ( ( in @ SV609 @ SV509 )
        = $false )
      | ( ( SV509 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2782]) ).

thf(2865,plain,
    ! [SV426: $i,SV556: $i] :
      ( ( ( subset @ SV556 @ ( sK1_B @ SV426 ) )
        = $false )
      | ( ( are_equipotent @ SV556 @ ( sK1_B @ SV426 ) )
        = $true )
      | ( ( in @ SV556 @ ( sK1_B @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2783]) ).

thf(2866,plain,
    ! [SV426: $i,SV632: $i] :
      ( ( ~ ( ~ ! [SY863: $i] :
                  ( ~ ( subset @ SY863 @ SV632 )
                  | ( in @ SY863 @ ( sK2_SY267 @ SV632 @ SV426 ) ) )
            | ~ ( in @ ( sK2_SY267 @ SV632 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
        | ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2784]) ).

thf(2867,plain,
    ! [SV426: $i] :
      ( ( ~ ! [SY679: $i,SY680: $i] :
              ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
              | ~ ( subset @ SY680 @ SY679 )
              | ( in @ SY680 @ ( sK1_B @ SV426 ) ) )
        | ~ ( in @ SV426 @ ( sK1_B @ SV426 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2785]) ).

thf(2868,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
              | ~ ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) ) )
        = $false )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2786]) ).

thf(2869,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( ~ ( ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
              | ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) ) )
        = $false )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2786]) ).

thf(2870,plain,
    ! [SV511: $i,SV558: $i] :
      ( ( ( ~ ! [SY791: $i] :
                ( ~ ( in @ SY791 @ SV558 )
                | ( subset @ SY791 @ SV511 ) )
          | ~ ! [SY792: $i] :
                ( ~ ( subset @ SY792 @ SV511 )
                | ( in @ SY792 @ SV558 ) ) )
        = $false )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2787]) ).

thf(2871,plain,
    ! [SV610: $i] :
      ( ( ( empty @ SV610 )
        = $true )
      | ( ( ! [SY839: $i] :
              ( ~ ( element @ SY839 @ SV610 )
              | ( in @ SY839 @ SV610 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2788]) ).

thf(2872,plain,
    ! [SV611: $i] :
      ( ( ( empty @ SV611 )
        = $true )
      | ( ( ! [SY840: $i] :
              ( ~ ( in @ SY840 @ SV611 )
              | ( element @ SY840 @ SV611 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2789]) ).

thf(2873,plain,
    ! [SV612: $i] :
      ( ( ( ~ ( empty @ SV612 ) )
        = $true )
      | ( ( ! [SY841: $i] :
              ( ~ ( element @ SY841 @ SV612 )
              | ( empty @ SY841 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2790]) ).

thf(2874,plain,
    ! [SV613: $i] :
      ( ( ( ~ ( empty @ SV613 ) )
        = $true )
      | ( ( ! [SY842: $i] :
              ( ~ ( empty @ SY842 )
              | ( element @ SY842 @ SV613 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2791]) ).

thf(2875,plain,
    ! [SV512: $i,SV559: $i] :
      ( ( ( in @ SV559 @ SV512 )
        = $false )
      | ( ( ( set_difference @ SV512 @ ( singleton @ SV559 ) )
          = SV512 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2792]) ).

thf(2876,plain,
    ! [SV514: $i] :
      ( ( ( ! [SY754: $i,SY755: $i] :
              ( ( sK30_B @ SV514 )
             != ( ordered_pair @ SY754 @ SY755 ) ) )
        = $true )
      | ( ( relation @ SV514 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2793]) ).

thf(2877,plain,
    ! [SV514: $i] :
      ( ( ( in @ ( sK30_B @ SV514 ) @ SV514 )
        = $true )
      | ( ( relation @ SV514 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2794]) ).

thf(2878,plain,
    ! [SV515: $i,SV614: $i] :
      ( ( ( SV614
          = ( ordered_pair @ ( sK28_C @ SV614 @ SV515 ) @ ( sK29_SY279 @ SV614 @ SV515 ) ) )
        = $true )
      | ( ( ~ ( in @ SV614 @ SV515 ) )
        = $true )
      | ( ( relation @ SV515 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2795]) ).

thf(2879,plain,
    ! [SV563: $i,SV518: $i] :
      ( ( ( subset @ SV518 @ SV563 )
        = $false )
      | ( ( ~ ( subset @ SV563 @ SV518 ) )
        = $true )
      | ( ( SV518 = SV563 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2798]) ).

thf(2880,plain,
    ! [SV633: $i,SV615: $i] :
      ( ( ( SV615 != SV633 )
        | ( subset @ SV615 @ SV633 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2799]) ).

thf(2881,plain,
    ! [SV634: $i,SV616: $i] :
      ( ( ( SV616 != SV634 )
        | ( subset @ SV634 @ SV616 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2800]) ).

thf(2882,plain,
    ! [SV427: $i,SV617: $i] :
      ( ( ( ~ ( ~ ( ! [SY845: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ SY845 ) @ SV427 )
                  | ~ ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ ( sK21_SY278 @ SV617 @ SV427 ) ) @ SV427 )
                  | ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) ) ) )
        = $true )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2803]) ).

thf(2883,plain,
    ! [SV427: $i,SV618: $i] :
      ( ( ( ( SV618
           != ( relation_dom @ SV427 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY846: $i] :
                    ( ! [SY685: $i] :
                        ~ ( in @ ( ordered_pair @ SY846 @ SY685 ) @ SV427 )
                    | ( in @ SY846 @ SV618 ) )
              | ~ ! [SY848: $i] :
                    ( ~ ( in @ SY848 @ SV618 )
                    | ( in @ ( ordered_pair @ SY848 @ ( sK19_D @ SY848 @ SV618 @ SV427 ) ) @ SV427 ) ) ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2804]) ).

thf(2884,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
              | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
              | ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
          | ~ ~ ( ~ ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
                    | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
                | ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
                    | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) ) ) )
        = $false )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2805]) ).

thf(2885,plain,
    ! [SV567: $i,SV428: $i,SV592: $i] :
      ( ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY820: $i] :
                    ( ~ ( in @ SY820 @ SV428 )
                    | ( in @ SY820 @ SV567 )
                    | ( in @ SY820 @ SV592 ) )
              | ~ ~ ( ~ ! [SY821: $i] :
                          ( ~ ( in @ SY821 @ SV592 )
                          | ( in @ SY821 @ SV428 ) )
                    | ~ ! [SY822: $i] :
                          ( ~ ( in @ SY822 @ SV592 )
                          | ~ ( in @ SY822 @ SV567 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2806]) ).

thf(2886,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
              | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
              | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
          | ~ ~ ( ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
                    | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
                | ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
                    | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) ) ) )
        = $false )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2809]) ).

thf(2887,plain,
    ! [SV571: $i,SV429: $i,SV594: $i] :
      ( ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY823: $i] :
                    ( ~ ( in @ SY823 @ SV429 )
                    | ~ ( in @ SY823 @ SV571 )
                    | ( in @ SY823 @ SV594 ) )
              | ~ ~ ( ~ ! [SY824: $i] :
                          ( ~ ( in @ SY824 @ SV594 )
                          | ( in @ SY824 @ SV429 ) )
                    | ~ ! [SY825: $i] :
                          ( ~ ( in @ SY825 @ SV594 )
                          | ( in @ SY825 @ SV571 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2810]) ).

thf(2888,plain,
    ! [SV430: $i,SV619: $i] :
      ( ( ( ~ ( ~ ( ! [SY849: $i] :
                      ~ ( in @ ( ordered_pair @ SY849 @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
                  | ~ ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV619 @ SV430 ) @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
                  | ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) ) ) )
        = $true )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2811]) ).

thf(2889,plain,
    ! [SV430: $i,SV620: $i] :
      ( ( ( ( SV620
           != ( relation_rng @ SV430 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY850: $i] :
                    ( ! [SY705: $i] :
                        ~ ( in @ ( ordered_pair @ SY705 @ SY850 ) @ SV430 )
                    | ( in @ SY850 @ SV620 ) )
              | ~ ! [SY852: $i] :
                    ( ~ ( in @ SY852 @ SV620 )
                    | ( in @ ( ordered_pair @ ( sK12_D @ SY852 @ SV620 @ SV430 ) @ SY852 ) @ SV430 ) ) ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2812]) ).

thf(2890,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ~ ( ! [SY803: $i] :
                  ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SY803 )
                  | ~ ( in @ SY803 @ SV525 ) )
              | ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) ) )
        = $false )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2813]) ).

thf(2891,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ ( sK18_SY276 @ SV572 @ SV525 ) )
                  | ~ ( in @ ( sK18_SY276 @ SV572 @ SV525 ) @ SV525 ) )
              | ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) ) )
        = $false )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2813]) ).

thf(2892,plain,
    ! [SV573: $i,SV526: $i] :
      ( ( ( ~ ! [SY804: $i] :
                ( ! [SY768: $i] :
                    ( ~ ( in @ SY804 @ SY768 )
                    | ~ ( in @ SY768 @ SV526 ) )
                | ( in @ SY804 @ SV573 ) )
          | ~ ! [SY806: $i] :
                ( ~ ( in @ SY806 @ SV573 )
                | ~ ( ~ ( in @ SY806 @ ( sK16_D @ SY806 @ SV573 @ SV526 ) )
                    | ~ ( in @ ( sK16_D @ SY806 @ SV573 @ SV526 ) @ SV526 ) ) ) )
        = $false )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2814]) ).

thf(2893,plain,
    ! [SV529: $i,SV576: $i] :
      ( ( ( ~ ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV529 ) )
        = $false )
      | ( ( subset @ SV529 @ SV576 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2818]) ).

thf(2894,plain,
    ! [SV529: $i,SV576: $i] :
      ( ( ( ~ ~ ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV576 ) )
        = $false )
      | ( ( subset @ SV529 @ SV576 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2818]) ).

thf(2895,plain,
    ! [SV577: $i,SV530: $i,SV635: $i] :
      ( ( ( ~ ( in @ SV635 @ SV530 )
          | ( in @ SV635 @ SV577 ) )
        = $true )
      | ( ( subset @ SV530 @ SV577 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2819]) ).

thf(2896,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                    | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                     != SV433 ) )
                | ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                    | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                     != SV580 ) ) )
          | ~ ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
              | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                = SV433 )
              | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                = SV580 ) ) )
        = $false )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2822]) ).

thf(2897,plain,
    ! [SV581: $i,SV433: $i,SV596: $i] :
      ( ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY826: $i] :
                    ( ~ ( in @ SY826 @ SV596 )
                    | ( SY826 = SV433 )
                    | ( SY826 = SV581 ) )
              | ~ ~ ( ~ ! [SY827: $i] :
                          ( ( SY827 != SV433 )
                          | ( in @ SY827 @ SV596 ) )
                    | ~ ! [SY828: $i] :
                          ( ( SY828 != SV581 )
                          | ( in @ SY828 @ SV596 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2823]) ).

thf(2898,plain,
    ! [SV621: $i] :
      ( ( ( SV621 = empty_set )
        = $true )
      | ( ( ! [SY853: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SY853 @ SV621 ) @ SV621 )
                          | ~ ~ ( in @ ( sK39_C @ SY853 @ SV621 ) @ ( sK40_SY287 @ SY853 @ SV621 ) ) )
                      | ~ ( in @ ( sK39_C @ SY853 @ SV621 ) @ SY853 ) )
                  | ~ ( ! [SY854: $i] :
                          ( ~ ( in @ SY854 @ SV621 )
                          | ( in @ ( sK39_C @ SY853 @ SV621 ) @ SY854 ) )
                      | ( in @ ( sK39_C @ SY853 @ SV621 ) @ SY853 ) ) )
              | ( SY853
                = ( set_meet @ SV621 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2824]) ).

thf(2899,plain,
    ! [SV622: $i] :
      ( ( ( SV622 = empty_set )
        = $true )
      | ( ( ! [SY855: $i] :
              ( ( SY855
               != ( set_meet @ SV622 ) )
              | ~ ( ~ ! [SY856: $i] :
                        ( ~ ( ~ ( in @ ( sK38_D @ SY856 @ SY855 @ SV622 ) @ SV622 )
                            | ~ ~ ( in @ SY856 @ ( sK38_D @ SY856 @ SY855 @ SV622 ) ) )
                        | ( in @ SY856 @ SY855 ) )
                  | ~ ! [SY857: $i] :
                        ( ~ ( in @ SY857 @ SY855 )
                        | ! [SY858: $i] :
                            ( ~ ( in @ SY858 @ SV622 )
                            | ( in @ SY857 @ SY858 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2825]) ).

thf(2900,plain,
    ! [SV623: $i] :
      ( ( ( ( SV623 != empty_set ) )
        = $true )
      | ( ( ! [SY859: $i] :
              ( ( SY859
               != ( set_meet @ SV623 ) )
              | ( SY859 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2826]) ).

thf(2901,plain,
    ! [SV624: $i] :
      ( ( ( ( SV624 != empty_set ) )
        = $true )
      | ( ( ! [SY860: $i] :
              ( ( SY860 != empty_set )
              | ( SY860
                = ( set_meet @ SV624 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2827]) ).

thf(2902,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( ~ ( ( ( sK27_C @ SV582 @ SV533 )
               != SV533 )
              | ~ ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) ) )
        = $false )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2828]) ).

thf(2903,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( ~ ( ( ( sK27_C @ SV582 @ SV533 )
                = SV533 )
              | ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) ) )
        = $false )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2828]) ).

thf(2904,plain,
    ! [SV583: $i,SV534: $i] :
      ( ( ( ~ ! [SY813: $i] :
                ( ( SY813 != SV534 )
                | ( in @ SY813 @ SV583 ) )
          | ~ ! [SY814: $i] :
                ( ~ ( in @ SY814 @ SV583 )
                | ( SY814 = SV534 ) ) )
        = $false )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2829]) ).

thf(2905,plain,
    ! [SV584: $i,SV636: $i,SV434: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV434 @ SV636 ) @ ( cartesian_product2 @ SV584 @ SV636 ) )
        = $true )
      | ( ( subset @ SV434 @ SV584 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2830]) ).

thf(2906,plain,
    ! [SV585: $i,SV434: $i,SV637: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV637 @ SV434 ) @ ( cartesian_product2 @ SV637 @ SV585 ) )
        = $true )
      | ( ( subset @ SV434 @ SV585 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2831]) ).

thf(2907,plain,
    ! [SV539: $i,SV586: $i,SV419: $i] :
      ( ( ( in @ SV419 @ SV586 )
        = $false )
      | ( ( ~ ( in @ SV539 @ SV586 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV419 @ SV539 ) @ SV586 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2836]) ).

thf(2908,plain,
    ! [SV638: $i,SV625: $i,SV419: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV419 @ SV625 ) @ SV638 )
        | ( in @ SV419 @ SV638 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2837]) ).

thf(2909,plain,
    ! [SV639: $i,SV626: $i,SV419: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV419 @ SV626 ) @ SV639 )
        | ( in @ SV626 @ SV639 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2838]) ).

thf(2910,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( relation @ SV597 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
                  | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
                  | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) ) )
          | ( SV597
            = ( relation_inverse @ SV420 ) ) )
        = $true )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2839]) ).

thf(2911,plain,
    ! [SV420: $i,SV598: $i] :
      ( ( ( relation @ SV598 )
        = $false )
      | ( ( ( SV598
           != ( relation_inverse @ SV420 ) )
          | ~ ( ~ ! [SY829: $i,SY830: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY829 @ SY830 ) @ SV598 )
                    | ( in @ ( ordered_pair @ SY830 @ SY829 ) @ SV420 ) )
              | ~ ! [SY831: $i,SY832: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY832 @ SY831 ) @ SV420 )
                    | ( in @ ( ordered_pair @ SY831 @ SY832 ) @ SV598 ) ) ) )
        = $true )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2840]) ).

thf(2912,plain,
    ! [SV599: $i,SV541: $i,SV498: $i] :
      ( ( ( disjoint @ SV498 @ SV541 )
        = $false )
      | ( ( in @ SV599 @ ( set_intersection2 @ SV498 @ SV541 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2841]) ).

thf(2913,plain,
    ! [SV421: $i,SV479: $i] :
      ( ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV479 )
        = $false )
      | ( ( in @ ( sK3_C @ SV479 @ SV421 ) @ SV421 )
        = $false )
      | ( ( SV421 = SV479 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2842]) ).

thf(2914,plain,
    ! [SV587: $i,SV542: $i,SV422: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV422 @ SV542 ) @ SV587 ) )
        = $true )
      | ( ( in @ SV422 @ ( relation_dom @ SV587 ) )
        = $true )
      | ( ( relation @ SV587 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2843]) ).

thf(2915,plain,
    ! [SV588: $i,SV543: $i,SV422: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV422 @ SV543 ) @ SV588 ) )
        = $true )
      | ( ( in @ SV543 @ ( relation_rng @ SV588 ) )
        = $true )
      | ( ( relation @ SV588 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2844]) ).

thf(2916,plain,
    ! [SV600: $i] :
      ( ( ( SV600 = empty_set )
        = $false )
      | ( ( ! [SY833: $i] : ( subset @ SV600 @ ( singleton @ SY833 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2846]) ).

thf(2917,plain,
    ! [SV627: $i,SV601: $i] :
      ( ( ( ( SV601
           != ( singleton @ SV627 ) ) )
        = $true )
      | ( ( subset @ SV601 @ ( singleton @ SV627 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2847]) ).

thf(2918,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                    | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) )
                | ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                    | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) ) )
        = $false )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2848]) ).

thf(2919,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
              | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 )
              | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) )
        = $false )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2848]) ).

thf(2920,plain,
    ! [SV548: $i,SV423: $i,SV590: $i] :
      ( ( ( ~ ! [SY817: $i] :
                ( ~ ( in @ SY817 @ SV590 )
                | ( in @ SY817 @ SV423 )
                | ( in @ SY817 @ SV548 ) )
          | ~ ~ ( ~ ! [SY818: $i] :
                      ( ~ ( in @ SY818 @ SV423 )
                      | ( in @ SY818 @ SV590 ) )
                | ~ ! [SY819: $i] :
                      ( ~ ( in @ SY819 @ SV548 )
                      | ( in @ SY819 @ SV590 ) ) ) )
        = $false )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2849]) ).

thf(2921,plain,
    ! [SV602: $i] :
      ( ( ( SV602 = empty_set )
        = $false )
      | ( ( ! [SY835: $i] : ( subset @ SV602 @ ( singleton @ SY835 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2851]) ).

thf(2922,plain,
    ! [SV628: $i,SV603: $i] :
      ( ( ( ( SV603
           != ( singleton @ SV628 ) ) )
        = $true )
      | ( ( subset @ SV603 @ ( singleton @ SV628 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2852]) ).

thf(2923,plain,
    ! [SV629: $i,SV604: $i] :
      ( ( ( ~ ( proper_subset @ SV604 @ SV629 ) )
        = $true )
      | ( ( ( SV604 != SV629 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2854]) ).

thf(2924,plain,
    ! [SV630: $i,SV605: $i] :
      ( ( ( ~ ( proper_subset @ SV605 @ SV630 ) )
        = $true )
      | ( ( subset @ SV605 @ SV630 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2855]) ).

thf(2925,plain,
    ! [SV504: $i,SV551: $i] :
      ( ( ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV504 )
        = $true )
      | ( ( disjoint @ SV504 @ SV551 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2856]) ).

thf(2926,plain,
    ! [SV504: $i,SV551: $i] :
      ( ( ( in @ ( sK34_C @ SV551 @ SV504 ) @ SV551 )
        = $true )
      | ( ( disjoint @ SV504 @ SV551 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2857]) ).

thf(2927,plain,
    ! [SV552: $i,SV505: $i,SV606: $i] :
      ( ( ( in @ SV606 @ SV505 )
        = $false )
      | ( ( ~ ( in @ SV606 @ SV552 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV505 @ SV552 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2858]) ).

thf(2928,plain,
    ! [SV424: $i,SV631: $i] :
      ( ( ( ~ ( in @ SV631 @ ( sK35_B @ SV424 ) ) )
        = $true )
      | ( ( in @ ( powerset @ SV631 ) @ ( sK35_B @ SV424 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2860]) ).

thf(2929,plain,
    ! [SV424: $i] :
      ( ( ~ ! [SY672: $i,SY673: $i] :
              ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
              | ~ ( subset @ SY673 @ SY672 )
              | ( in @ SY673 @ ( sK35_B @ SV424 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2861]) ).

thf(2930,plain,
    ! [SV424: $i] :
      ( ( ~ ( in @ SV424 @ ( sK35_B @ SV424 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2861]) ).

thf(2931,plain,
    ! [SV425: $i,SV607: $i] :
      ( ( ( relation @ SV607 )
        = $false )
      | ( ( ~ ( subset @ SV425 @ SV607 )
          | ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SV607 ) ) )
        = $true )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2862]) ).

thf(2932,plain,
    ! [SV425: $i,SV608: $i] :
      ( ( ( relation @ SV608 )
        = $false )
      | ( ( ~ ( subset @ SV425 @ SV608 )
          | ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SV608 ) ) )
        = $true )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2863]) ).

thf(2933,plain,
    ! [SV426: $i,SV632: $i] :
      ( ( ( ~ ( ~ ! [SY863: $i] :
                    ( ~ ( subset @ SY863 @ SV632 )
                    | ( in @ SY863 @ ( sK2_SY267 @ SV632 @ SV426 ) ) )
              | ~ ( in @ ( sK2_SY267 @ SV632 @ SV426 ) @ ( sK1_B @ SV426 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2866]) ).

thf(2934,plain,
    ! [SV426: $i] :
      ( ( ~ ! [SY679: $i,SY680: $i] :
              ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
              | ~ ( subset @ SY680 @ SY679 )
              | ( in @ SY680 @ ( sK1_B @ SV426 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2867]) ).

thf(2935,plain,
    ! [SV426: $i] :
      ( ( ~ ( in @ SV426 @ ( sK1_B @ SV426 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2867]) ).

thf(2936,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( ~ ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
          | ~ ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) )
        = $true )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2868]) ).

thf(2937,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
          | ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) )
        = $true )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2869]) ).

thf(2938,plain,
    ! [SV511: $i,SV558: $i] :
      ( ( ( ~ ! [SY791: $i] :
                ( ~ ( in @ SY791 @ SV558 )
                | ( subset @ SY791 @ SV511 ) ) )
        = $false )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2870]) ).

thf(2939,plain,
    ! [SV558: $i,SV511: $i] :
      ( ( ( ~ ! [SY792: $i] :
                ( ~ ( subset @ SY792 @ SV511 )
                | ( in @ SY792 @ SV558 ) ) )
        = $false )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2870]) ).

thf(2940,plain,
    ! [SV610: $i,SV640: $i] :
      ( ( ( ~ ( element @ SV640 @ SV610 )
          | ( in @ SV640 @ SV610 ) )
        = $true )
      | ( ( empty @ SV610 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2871]) ).

thf(2941,plain,
    ! [SV611: $i,SV641: $i] :
      ( ( ( ~ ( in @ SV641 @ SV611 )
          | ( element @ SV641 @ SV611 ) )
        = $true )
      | ( ( empty @ SV611 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2872]) ).

thf(2942,plain,
    ! [SV612: $i] :
      ( ( ( empty @ SV612 )
        = $false )
      | ( ( ! [SY841: $i] :
              ( ~ ( element @ SY841 @ SV612 )
              | ( empty @ SY841 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2873]) ).

thf(2943,plain,
    ! [SV613: $i] :
      ( ( ( empty @ SV613 )
        = $false )
      | ( ( ! [SY842: $i] :
              ( ~ ( empty @ SY842 )
              | ( element @ SY842 @ SV613 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2874]) ).

thf(2944,plain,
    ! [SV642: $i,SV514: $i] :
      ( ( ( ! [SY864: $i] :
              ( ( sK30_B @ SV514 )
             != ( ordered_pair @ SV642 @ SY864 ) ) )
        = $true )
      | ( ( relation @ SV514 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2876]) ).

thf(2945,plain,
    ! [SV515: $i,SV614: $i] :
      ( ( ( in @ SV614 @ SV515 )
        = $false )
      | ( ( SV614
          = ( ordered_pair @ ( sK28_C @ SV614 @ SV515 ) @ ( sK29_SY279 @ SV614 @ SV515 ) ) )
        = $true )
      | ( ( relation @ SV515 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2878]) ).

thf(2946,plain,
    ! [SV518: $i,SV563: $i] :
      ( ( ( subset @ SV563 @ SV518 )
        = $false )
      | ( ( subset @ SV518 @ SV563 )
        = $false )
      | ( ( SV518 = SV563 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2879]) ).

thf(2947,plain,
    ! [SV633: $i,SV615: $i] :
      ( ( ( ( SV615 != SV633 ) )
        = $true )
      | ( ( subset @ SV615 @ SV633 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2880]) ).

thf(2948,plain,
    ! [SV634: $i,SV616: $i] :
      ( ( ( ( SV616 != SV634 ) )
        = $true )
      | ( ( subset @ SV634 @ SV616 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2881]) ).

thf(2949,plain,
    ! [SV427: $i,SV617: $i] :
      ( ( ( ~ ( ! [SY845: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ SY845 ) @ SV427 )
              | ~ ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ ( sK21_SY278 @ SV617 @ SV427 ) ) @ SV427 )
              | ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) ) )
        = $false )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2882]) ).

thf(2950,plain,
    ! [SV427: $i,SV618: $i] :
      ( ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY846: $i] :
                    ( ! [SY685: $i] :
                        ~ ( in @ ( ordered_pair @ SY846 @ SY685 ) @ SV427 )
                    | ( in @ SY846 @ SV618 ) )
              | ~ ! [SY848: $i] :
                    ( ~ ( in @ SY848 @ SV618 )
                    | ( in @ ( ordered_pair @ SY848 @ ( sK19_D @ SY848 @ SV618 @ SV427 ) ) @ SV427 ) ) ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2883]) ).

thf(2951,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
              | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
              | ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) ) )
        = $false )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2884]) ).

thf(2952,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
                    | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
                | ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
                    | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) ) ) )
        = $false )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2884]) ).

thf(2953,plain,
    ! [SV592: $i,SV567: $i,SV428: $i] :
      ( ( ( ~ ! [SY820: $i] :
                ( ~ ( in @ SY820 @ SV428 )
                | ( in @ SY820 @ SV567 )
                | ( in @ SY820 @ SV592 ) )
          | ~ ~ ( ~ ! [SY821: $i] :
                      ( ~ ( in @ SY821 @ SV592 )
                      | ( in @ SY821 @ SV428 ) )
                | ~ ! [SY822: $i] :
                      ( ~ ( in @ SY822 @ SV592 )
                      | ~ ( in @ SY822 @ SV567 ) ) ) )
        = $false )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2885]) ).

thf(2954,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
              | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
              | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) ) )
        = $false )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2886]) ).

thf(2955,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
                    | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
                | ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
                    | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) ) ) )
        = $false )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2886]) ).

thf(2956,plain,
    ! [SV594: $i,SV571: $i,SV429: $i] :
      ( ( ( ~ ! [SY823: $i] :
                ( ~ ( in @ SY823 @ SV429 )
                | ~ ( in @ SY823 @ SV571 )
                | ( in @ SY823 @ SV594 ) )
          | ~ ~ ( ~ ! [SY824: $i] :
                      ( ~ ( in @ SY824 @ SV594 )
                      | ( in @ SY824 @ SV429 ) )
                | ~ ! [SY825: $i] :
                      ( ~ ( in @ SY825 @ SV594 )
                      | ( in @ SY825 @ SV571 ) ) ) )
        = $false )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2887]) ).

thf(2957,plain,
    ! [SV430: $i,SV619: $i] :
      ( ( ( ~ ( ! [SY849: $i] :
                  ~ ( in @ ( ordered_pair @ SY849 @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
              | ~ ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV619 @ SV430 ) @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
              | ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) ) )
        = $false )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2888]) ).

thf(2958,plain,
    ! [SV430: $i,SV620: $i] :
      ( ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY850: $i] :
                    ( ! [SY705: $i] :
                        ~ ( in @ ( ordered_pair @ SY705 @ SY850 ) @ SV430 )
                    | ( in @ SY850 @ SV620 ) )
              | ~ ! [SY852: $i] :
                    ( ~ ( in @ SY852 @ SV620 )
                    | ( in @ ( ordered_pair @ ( sK12_D @ SY852 @ SV620 @ SV430 ) @ SY852 ) @ SV430 ) ) ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2889]) ).

thf(2959,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ! [SY803: $i] :
              ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SY803 )
              | ~ ( in @ SY803 @ SV525 ) )
          | ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2890]) ).

thf(2960,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ ( sK18_SY276 @ SV572 @ SV525 ) )
              | ~ ( in @ ( sK18_SY276 @ SV572 @ SV525 ) @ SV525 ) )
          | ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2891]) ).

thf(2961,plain,
    ! [SV573: $i,SV526: $i] :
      ( ( ( ~ ! [SY804: $i] :
                ( ! [SY768: $i] :
                    ( ~ ( in @ SY804 @ SY768 )
                    | ~ ( in @ SY768 @ SV526 ) )
                | ( in @ SY804 @ SV573 ) ) )
        = $false )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2892]) ).

thf(2962,plain,
    ! [SV526: $i,SV573: $i] :
      ( ( ( ~ ! [SY806: $i] :
                ( ~ ( in @ SY806 @ SV573 )
                | ~ ( ~ ( in @ SY806 @ ( sK16_D @ SY806 @ SV573 @ SV526 ) )
                    | ~ ( in @ ( sK16_D @ SY806 @ SV573 @ SV526 ) @ SV526 ) ) ) )
        = $false )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2892]) ).

thf(2963,plain,
    ! [SV529: $i,SV576: $i] :
      ( ( ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV529 )
        = $true )
      | ( ( subset @ SV529 @ SV576 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2893]) ).

thf(2964,plain,
    ! [SV529: $i,SV576: $i] :
      ( ( ( ~ ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV576 ) )
        = $true )
      | ( ( subset @ SV529 @ SV576 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2894]) ).

thf(2965,plain,
    ! [SV577: $i,SV530: $i,SV635: $i] :
      ( ( ( ~ ( in @ SV635 @ SV530 ) )
        = $true )
      | ( ( in @ SV635 @ SV577 )
        = $true )
      | ( ( subset @ SV530 @ SV577 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2895]) ).

thf(2966,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                    | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                     != SV433 ) )
                | ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                    | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                     != SV580 ) ) ) )
        = $false )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2896]) ).

thf(2967,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
              | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                = SV433 )
              | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                = SV580 ) ) )
        = $false )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2896]) ).

thf(2968,plain,
    ! [SV581: $i,SV433: $i,SV596: $i] :
      ( ( ( ~ ! [SY826: $i] :
                ( ~ ( in @ SY826 @ SV596 )
                | ( SY826 = SV433 )
                | ( SY826 = SV581 ) )
          | ~ ~ ( ~ ! [SY827: $i] :
                      ( ( SY827 != SV433 )
                      | ( in @ SY827 @ SV596 ) )
                | ~ ! [SY828: $i] :
                      ( ( SY828 != SV581 )
                      | ( in @ SY828 @ SV596 ) ) ) )
        = $false )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2897]) ).

thf(2969,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 )
                      | ~ ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) ) )
                  | ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
              | ~ ( ! [SY865: $i] :
                      ( ~ ( in @ SY865 @ SV621 )
                      | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SY865 ) )
                  | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) ) )
          | ( SV643
            = ( set_meet @ SV621 ) ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2898]) ).

thf(2970,plain,
    ! [SV622: $i,SV644: $i] :
      ( ( ( ( SV644
           != ( set_meet @ SV622 ) )
          | ~ ( ~ ! [SY866: $i] :
                    ( ~ ( ~ ( in @ ( sK38_D @ SY866 @ SV644 @ SV622 ) @ SV622 )
                        | ~ ~ ( in @ SY866 @ ( sK38_D @ SY866 @ SV644 @ SV622 ) ) )
                    | ( in @ SY866 @ SV644 ) )
              | ~ ! [SY867: $i] :
                    ( ~ ( in @ SY867 @ SV644 )
                    | ! [SY858: $i] :
                        ( ~ ( in @ SY858 @ SV622 )
                        | ( in @ SY867 @ SY858 ) ) ) ) )
        = $true )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2899]) ).

thf(2971,plain,
    ! [SV623: $i] :
      ( ( ( SV623 = empty_set )
        = $false )
      | ( ( ! [SY859: $i] :
              ( ( SY859
               != ( set_meet @ SV623 ) )
              | ( SY859 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2900]) ).

thf(2972,plain,
    ! [SV624: $i] :
      ( ( ( SV624 = empty_set )
        = $false )
      | ( ( ! [SY860: $i] :
              ( ( SY860 != empty_set )
              | ( SY860
                = ( set_meet @ SV624 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2901]) ).

thf(2973,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( ( ( sK27_C @ SV582 @ SV533 )
           != SV533 )
          | ~ ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) )
        = $true )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2902]) ).

thf(2974,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( ( ( sK27_C @ SV582 @ SV533 )
            = SV533 )
          | ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) )
        = $true )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2903]) ).

thf(2975,plain,
    ! [SV583: $i,SV534: $i] :
      ( ( ( ~ ! [SY813: $i] :
                ( ( SY813 != SV534 )
                | ( in @ SY813 @ SV583 ) ) )
        = $false )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2904]) ).

thf(2976,plain,
    ! [SV534: $i,SV583: $i] :
      ( ( ( ~ ! [SY814: $i] :
                ( ~ ( in @ SY814 @ SV583 )
                | ( SY814 = SV534 ) ) )
        = $false )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2904]) ).

thf(2977,plain,
    ! [SV419: $i,SV586: $i,SV539: $i] :
      ( ( ( in @ SV539 @ SV586 )
        = $false )
      | ( ( in @ SV419 @ SV586 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV419 @ SV539 ) @ SV586 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2907]) ).

thf(2978,plain,
    ! [SV638: $i,SV625: $i,SV419: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV419 @ SV625 ) @ SV638 ) )
        = $true )
      | ( ( in @ SV419 @ SV638 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2908]) ).

thf(2979,plain,
    ! [SV639: $i,SV626: $i,SV419: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV419 @ SV626 ) @ SV639 ) )
        = $true )
      | ( ( in @ SV626 @ SV639 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2909]) ).

thf(2980,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
                  | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
                  | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) ) ) )
        = $true )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2910]) ).

thf(2981,plain,
    ! [SV420: $i,SV598: $i] :
      ( ( ( ( SV598
           != ( relation_inverse @ SV420 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY829: $i,SY830: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY829 @ SY830 ) @ SV598 )
                    | ( in @ ( ordered_pair @ SY830 @ SY829 ) @ SV420 ) )
              | ~ ! [SY831: $i,SY832: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY832 @ SY831 ) @ SV420 )
                    | ( in @ ( ordered_pair @ SY831 @ SY832 ) @ SV598 ) ) ) )
        = $true )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2911]) ).

thf(2982,plain,
    ! [SV587: $i,SV542: $i,SV422: $i] :
      ( ( ( in @ ( ordered_pair @ SV422 @ SV542 ) @ SV587 )
        = $false )
      | ( ( in @ SV422 @ ( relation_dom @ SV587 ) )
        = $true )
      | ( ( relation @ SV587 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2914]) ).

thf(2983,plain,
    ! [SV588: $i,SV543: $i,SV422: $i] :
      ( ( ( in @ ( ordered_pair @ SV422 @ SV543 ) @ SV588 )
        = $false )
      | ( ( in @ SV543 @ ( relation_rng @ SV588 ) )
        = $true )
      | ( ( relation @ SV588 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2915]) ).

thf(2984,plain,
    ! [SV645: $i,SV600: $i] :
      ( ( ( subset @ SV600 @ ( singleton @ SV645 ) )
        = $true )
      | ( ( SV600 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2916]) ).

thf(2985,plain,
    ! [SV627: $i,SV601: $i] :
      ( ( ( SV601
          = ( singleton @ SV627 ) )
        = $false )
      | ( ( subset @ SV601 @ ( singleton @ SV627 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2917]) ).

thf(2986,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                  | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) )
              | ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
                  | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2918]) ).

thf(2987,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
          | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 )
          | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2919]) ).

thf(2988,plain,
    ! [SV548: $i,SV423: $i,SV590: $i] :
      ( ( ( ~ ! [SY817: $i] :
                ( ~ ( in @ SY817 @ SV590 )
                | ( in @ SY817 @ SV423 )
                | ( in @ SY817 @ SV548 ) ) )
        = $false )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2920]) ).

thf(2989,plain,
    ! [SV548: $i,SV590: $i,SV423: $i] :
      ( ( ( ~ ~ ( ~ ! [SY818: $i] :
                      ( ~ ( in @ SY818 @ SV423 )
                      | ( in @ SY818 @ SV590 ) )
                | ~ ! [SY819: $i] :
                      ( ~ ( in @ SY819 @ SV548 )
                      | ( in @ SY819 @ SV590 ) ) ) )
        = $false )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2920]) ).

thf(2990,plain,
    ! [SV646: $i,SV602: $i] :
      ( ( ( subset @ SV602 @ ( singleton @ SV646 ) )
        = $true )
      | ( ( SV602 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2921]) ).

thf(2991,plain,
    ! [SV628: $i,SV603: $i] :
      ( ( ( SV603
          = ( singleton @ SV628 ) )
        = $false )
      | ( ( subset @ SV603 @ ( singleton @ SV628 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2922]) ).

thf(2992,plain,
    ! [SV629: $i,SV604: $i] :
      ( ( ( proper_subset @ SV604 @ SV629 )
        = $false )
      | ( ( ( SV604 != SV629 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2923]) ).

thf(2993,plain,
    ! [SV630: $i,SV605: $i] :
      ( ( ( proper_subset @ SV605 @ SV630 )
        = $false )
      | ( ( subset @ SV605 @ SV630 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2924]) ).

thf(2994,plain,
    ! [SV505: $i,SV552: $i,SV606: $i] :
      ( ( ( in @ SV606 @ SV552 )
        = $false )
      | ( ( in @ SV606 @ SV505 )
        = $false )
      | ( ( ~ ( disjoint @ SV505 @ SV552 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2927]) ).

thf(2995,plain,
    ! [SV424: $i,SV631: $i] :
      ( ( ( in @ SV631 @ ( sK35_B @ SV424 ) )
        = $false )
      | ( ( in @ ( powerset @ SV631 ) @ ( sK35_B @ SV424 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2928]) ).

thf(2996,plain,
    ! [SV424: $i] :
      ( ( ! [SY672: $i,SY673: $i] :
            ( ~ ( in @ SY672 @ ( sK35_B @ SV424 ) )
            | ~ ( subset @ SY673 @ SY672 )
            | ( in @ SY673 @ ( sK35_B @ SV424 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2929]) ).

thf(2997,plain,
    ! [SV424: $i] :
      ( ( in @ SV424 @ ( sK35_B @ SV424 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2930]) ).

thf(2998,plain,
    ! [SV607: $i,SV425: $i] :
      ( ( ( ~ ( subset @ SV425 @ SV607 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SV607 ) )
        = $true )
      | ( ( relation @ SV607 )
        = $false )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2931]) ).

thf(2999,plain,
    ! [SV608: $i,SV425: $i] :
      ( ( ( ~ ( subset @ SV425 @ SV608 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SV608 ) )
        = $true )
      | ( ( relation @ SV608 )
        = $false )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2932]) ).

thf(3000,plain,
    ! [SV426: $i,SV632: $i] :
      ( ( ( ~ ! [SY863: $i] :
                ( ~ ( subset @ SY863 @ SV632 )
                | ( in @ SY863 @ ( sK2_SY267 @ SV632 @ SV426 ) ) )
          | ~ ( in @ ( sK2_SY267 @ SV632 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
        = $false )
      | ( ( ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2933]) ).

thf(3001,plain,
    ! [SV426: $i] :
      ( ( ! [SY679: $i,SY680: $i] :
            ( ~ ( in @ SY679 @ ( sK1_B @ SV426 ) )
            | ~ ( subset @ SY680 @ SY679 )
            | ( in @ SY680 @ ( sK1_B @ SV426 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2934]) ).

thf(3002,plain,
    ! [SV426: $i] :
      ( ( in @ SV426 @ ( sK1_B @ SV426 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2935]) ).

thf(3003,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( ~ ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) )
        = $true )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2936]) ).

thf(3004,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
        = $true )
      | ( ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 )
        = $true )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2937]) ).

thf(3005,plain,
    ! [SV511: $i,SV558: $i] :
      ( ( ( ! [SY791: $i] :
              ( ~ ( in @ SY791 @ SV558 )
              | ( subset @ SY791 @ SV511 ) ) )
        = $true )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2938]) ).

thf(3006,plain,
    ! [SV558: $i,SV511: $i] :
      ( ( ( ! [SY792: $i] :
              ( ~ ( subset @ SY792 @ SV511 )
              | ( in @ SY792 @ SV558 ) ) )
        = $true )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2939]) ).

thf(3007,plain,
    ! [SV610: $i,SV640: $i] :
      ( ( ( ~ ( element @ SV640 @ SV610 ) )
        = $true )
      | ( ( in @ SV640 @ SV610 )
        = $true )
      | ( ( empty @ SV610 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2940]) ).

thf(3008,plain,
    ! [SV611: $i,SV641: $i] :
      ( ( ( ~ ( in @ SV641 @ SV611 ) )
        = $true )
      | ( ( element @ SV641 @ SV611 )
        = $true )
      | ( ( empty @ SV611 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2941]) ).

thf(3009,plain,
    ! [SV612: $i,SV647: $i] :
      ( ( ( ~ ( element @ SV647 @ SV612 )
          | ( empty @ SV647 ) )
        = $true )
      | ( ( empty @ SV612 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2942]) ).

thf(3010,plain,
    ! [SV613: $i,SV648: $i] :
      ( ( ( ~ ( empty @ SV648 )
          | ( element @ SV648 @ SV613 ) )
        = $true )
      | ( ( empty @ SV613 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2943]) ).

thf(3011,plain,
    ! [SV649: $i,SV642: $i,SV514: $i] :
      ( ( ( ( ( sK30_B @ SV514 )
           != ( ordered_pair @ SV642 @ SV649 ) ) )
        = $true )
      | ( ( relation @ SV514 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2944]) ).

thf(3012,plain,
    ! [SV633: $i,SV615: $i] :
      ( ( ( SV615 = SV633 )
        = $false )
      | ( ( subset @ SV615 @ SV633 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2947]) ).

thf(3013,plain,
    ! [SV634: $i,SV616: $i] :
      ( ( ( SV616 = SV634 )
        = $false )
      | ( ( subset @ SV634 @ SV616 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2948]) ).

thf(3014,plain,
    ! [SV427: $i,SV617: $i] :
      ( ( ( ~ ( ! [SY845: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ SY845 ) @ SV427 )
              | ~ ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) ) )
        = $false )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2949]) ).

thf(3015,plain,
    ! [SV427: $i,SV617: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ ( sK21_SY278 @ SV617 @ SV427 ) ) @ SV427 )
              | ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) ) )
        = $false )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2949]) ).

thf(3016,plain,
    ! [SV618: $i,SV427: $i] :
      ( ( ( ~ ! [SY846: $i] :
                ( ! [SY685: $i] :
                    ~ ( in @ ( ordered_pair @ SY846 @ SY685 ) @ SV427 )
                | ( in @ SY846 @ SV618 ) )
          | ~ ! [SY848: $i] :
                ( ~ ( in @ SY848 @ SV618 )
                | ( in @ ( ordered_pair @ SY848 @ ( sK19_D @ SY848 @ SV618 @ SV427 ) ) @ SV427 ) ) )
        = $false )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2950]) ).

thf(3017,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
          | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
          | ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2951]) ).

thf(3018,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
                  | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
              | ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
                  | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) ) ) )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2952]) ).

thf(3019,plain,
    ! [SV592: $i,SV567: $i,SV428: $i] :
      ( ( ( ~ ! [SY820: $i] :
                ( ~ ( in @ SY820 @ SV428 )
                | ( in @ SY820 @ SV567 )
                | ( in @ SY820 @ SV592 ) ) )
        = $false )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2953]) ).

thf(3020,plain,
    ! [SV567: $i,SV428: $i,SV592: $i] :
      ( ( ( ~ ~ ( ~ ! [SY821: $i] :
                      ( ~ ( in @ SY821 @ SV592 )
                      | ( in @ SY821 @ SV428 ) )
                | ~ ! [SY822: $i] :
                      ( ~ ( in @ SY822 @ SV592 )
                      | ~ ( in @ SY822 @ SV567 ) ) ) )
        = $false )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2953]) ).

thf(3021,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
          | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
          | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2954]) ).

thf(3022,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
                  | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
              | ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
                  | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) ) ) )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2955]) ).

thf(3023,plain,
    ! [SV594: $i,SV571: $i,SV429: $i] :
      ( ( ( ~ ! [SY823: $i] :
                ( ~ ( in @ SY823 @ SV429 )
                | ~ ( in @ SY823 @ SV571 )
                | ( in @ SY823 @ SV594 ) ) )
        = $false )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2956]) ).

thf(3024,plain,
    ! [SV571: $i,SV429: $i,SV594: $i] :
      ( ( ( ~ ~ ( ~ ! [SY824: $i] :
                      ( ~ ( in @ SY824 @ SV594 )
                      | ( in @ SY824 @ SV429 ) )
                | ~ ! [SY825: $i] :
                      ( ~ ( in @ SY825 @ SV594 )
                      | ( in @ SY825 @ SV571 ) ) ) )
        = $false )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2956]) ).

thf(3025,plain,
    ! [SV430: $i,SV619: $i] :
      ( ( ( ~ ( ! [SY849: $i] :
                  ~ ( in @ ( ordered_pair @ SY849 @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
              | ~ ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) ) )
        = $false )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2957]) ).

thf(3026,plain,
    ! [SV430: $i,SV619: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV619 @ SV430 ) @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
              | ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) ) )
        = $false )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2957]) ).

thf(3027,plain,
    ! [SV620: $i,SV430: $i] :
      ( ( ( ~ ! [SY850: $i] :
                ( ! [SY705: $i] :
                    ~ ( in @ ( ordered_pair @ SY705 @ SY850 ) @ SV430 )
                | ( in @ SY850 @ SV620 ) )
          | ~ ! [SY852: $i] :
                ( ~ ( in @ SY852 @ SV620 )
                | ( in @ ( ordered_pair @ ( sK12_D @ SY852 @ SV620 @ SV430 ) @ SY852 ) @ SV430 ) ) )
        = $false )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2958]) ).

thf(3028,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ! [SY803: $i] :
              ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SY803 )
              | ~ ( in @ SY803 @ SV525 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2959]) ).

thf(3029,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ ( sK18_SY276 @ SV572 @ SV525 ) )
              | ~ ( in @ ( sK18_SY276 @ SV572 @ SV525 ) @ SV525 ) ) )
        = $true )
      | ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2960]) ).

thf(3030,plain,
    ! [SV573: $i,SV526: $i] :
      ( ( ( ! [SY804: $i] :
              ( ! [SY768: $i] :
                  ( ~ ( in @ SY804 @ SY768 )
                  | ~ ( in @ SY768 @ SV526 ) )
              | ( in @ SY804 @ SV573 ) ) )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2961]) ).

thf(3031,plain,
    ! [SV526: $i,SV573: $i] :
      ( ( ( ! [SY806: $i] :
              ( ~ ( in @ SY806 @ SV573 )
              | ~ ( ~ ( in @ SY806 @ ( sK16_D @ SY806 @ SV573 @ SV526 ) )
                  | ~ ( in @ ( sK16_D @ SY806 @ SV573 @ SV526 ) @ SV526 ) ) ) )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2962]) ).

thf(3032,plain,
    ! [SV529: $i,SV576: $i] :
      ( ( ( in @ ( sK23_C @ SV576 @ SV529 ) @ SV576 )
        = $false )
      | ( ( subset @ SV529 @ SV576 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2964]) ).

thf(3033,plain,
    ! [SV577: $i,SV530: $i,SV635: $i] :
      ( ( ( in @ SV635 @ SV530 )
        = $false )
      | ( ( in @ SV635 @ SV577 )
        = $true )
      | ( ( subset @ SV530 @ SV577 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2965]) ).

thf(3034,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                  | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                   != SV433 ) )
              | ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
                  | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
                   != SV580 ) ) ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2966]) ).

thf(3035,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
          | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
            = SV433 )
          | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
            = SV580 ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2967]) ).

thf(3036,plain,
    ! [SV581: $i,SV433: $i,SV596: $i] :
      ( ( ( ~ ! [SY826: $i] :
                ( ~ ( in @ SY826 @ SV596 )
                | ( SY826 = SV433 )
                | ( SY826 = SV581 ) ) )
        = $false )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2968]) ).

thf(3037,plain,
    ! [SV581: $i,SV596: $i,SV433: $i] :
      ( ( ( ~ ~ ( ~ ! [SY827: $i] :
                      ( ( SY827 != SV433 )
                      | ( in @ SY827 @ SV596 ) )
                | ~ ! [SY828: $i] :
                      ( ( SY828 != SV581 )
                      | ( in @ SY828 @ SV596 ) ) ) )
        = $false )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2968]) ).

thf(3038,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 )
                      | ~ ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) ) )
                  | ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
              | ~ ( ! [SY865: $i] :
                      ( ~ ( in @ SY865 @ SV621 )
                      | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SY865 ) )
                  | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) ) ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2969]) ).

thf(3039,plain,
    ! [SV622: $i,SV644: $i] :
      ( ( ( ( SV644
           != ( set_meet @ SV622 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY866: $i] :
                    ( ~ ( ~ ( in @ ( sK38_D @ SY866 @ SV644 @ SV622 ) @ SV622 )
                        | ~ ~ ( in @ SY866 @ ( sK38_D @ SY866 @ SV644 @ SV622 ) ) )
                    | ( in @ SY866 @ SV644 ) )
              | ~ ! [SY867: $i] :
                    ( ~ ( in @ SY867 @ SV644 )
                    | ! [SY858: $i] :
                        ( ~ ( in @ SY858 @ SV622 )
                        | ( in @ SY867 @ SY858 ) ) ) ) )
        = $true )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2970]) ).

thf(3040,plain,
    ! [SV623: $i,SV650: $i] :
      ( ( ( ( SV650
           != ( set_meet @ SV623 ) )
          | ( SV650 = empty_set ) )
        = $true )
      | ( ( SV623 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2971]) ).

thf(3041,plain,
    ! [SV624: $i,SV651: $i] :
      ( ( ( ( SV651 != empty_set )
          | ( SV651
            = ( set_meet @ SV624 ) ) )
        = $true )
      | ( ( SV624 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2972]) ).

thf(3042,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( ( ( sK27_C @ SV582 @ SV533 )
           != SV533 ) )
        = $true )
      | ( ( ~ ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) )
        = $true )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2973]) ).

thf(3043,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( ( sK27_C @ SV582 @ SV533 )
          = SV533 )
        = $true )
      | ( ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 )
        = $true )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2974]) ).

thf(3044,plain,
    ! [SV583: $i,SV534: $i] :
      ( ( ( ! [SY813: $i] :
              ( ( SY813 != SV534 )
              | ( in @ SY813 @ SV583 ) ) )
        = $true )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2975]) ).

thf(3045,plain,
    ! [SV534: $i,SV583: $i] :
      ( ( ( ! [SY814: $i] :
              ( ~ ( in @ SY814 @ SV583 )
              | ( SY814 = SV534 ) ) )
        = $true )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2976]) ).

thf(3046,plain,
    ! [SV638: $i,SV625: $i,SV419: $i] :
      ( ( ( subset @ ( unordered_pair @ SV419 @ SV625 ) @ SV638 )
        = $false )
      | ( ( in @ SV419 @ SV638 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2978]) ).

thf(3047,plain,
    ! [SV639: $i,SV626: $i,SV419: $i] :
      ( ( ( subset @ ( unordered_pair @ SV419 @ SV626 ) @ SV639 )
        = $false )
      | ( ( in @ SV626 @ SV639 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2979]) ).

thf(3048,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
              | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
              | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) ) )
        = $false )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2980]) ).

thf(3049,plain,
    ! [SV420: $i,SV598: $i] :
      ( ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY829: $i,SY830: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY829 @ SY830 ) @ SV598 )
                    | ( in @ ( ordered_pair @ SY830 @ SY829 ) @ SV420 ) )
              | ~ ! [SY831: $i,SY832: $i] :
                    ( ~ ( in @ ( ordered_pair @ SY832 @ SY831 ) @ SV420 )
                    | ( in @ ( ordered_pair @ SY831 @ SY832 ) @ SV598 ) ) ) )
        = $true )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2981]) ).

thf(3050,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
              | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) )
          | ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
              | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) )
        = $false )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2986]) ).

thf(3051,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
        = $true )
      | ( ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 )
          | ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2987]) ).

thf(3052,plain,
    ! [SV548: $i,SV423: $i,SV590: $i] :
      ( ( ( ! [SY817: $i] :
              ( ~ ( in @ SY817 @ SV590 )
              | ( in @ SY817 @ SV423 )
              | ( in @ SY817 @ SV548 ) ) )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2988]) ).

thf(3053,plain,
    ! [SV548: $i,SV590: $i,SV423: $i] :
      ( ( ( ~ ( ~ ! [SY818: $i] :
                    ( ~ ( in @ SY818 @ SV423 )
                    | ( in @ SY818 @ SV590 ) )
              | ~ ! [SY819: $i] :
                    ( ~ ( in @ SY819 @ SV548 )
                    | ( in @ SY819 @ SV590 ) ) ) )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2989]) ).

thf(3054,plain,
    ! [SV629: $i,SV604: $i] :
      ( ( ( SV604 = SV629 )
        = $false )
      | ( ( proper_subset @ SV604 @ SV629 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2992]) ).

thf(3055,plain,
    ! [SV606: $i,SV552: $i,SV505: $i] :
      ( ( ( disjoint @ SV505 @ SV552 )
        = $false )
      | ( ( in @ SV606 @ SV505 )
        = $false )
      | ( ( in @ SV606 @ SV552 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2994]) ).

thf(3056,plain,
    ! [SV424: $i,SV652: $i] :
      ( ( ! [SY869: $i] :
            ( ~ ( in @ SV652 @ ( sK35_B @ SV424 ) )
            | ~ ( subset @ SY869 @ SV652 )
            | ( in @ SY869 @ ( sK35_B @ SV424 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2996]) ).

thf(3057,plain,
    ! [SV607: $i,SV425: $i] :
      ( ( ( subset @ SV425 @ SV607 )
        = $false )
      | ( ( subset @ ( relation_dom @ SV425 ) @ ( relation_dom @ SV607 ) )
        = $true )
      | ( ( relation @ SV607 )
        = $false )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2998]) ).

thf(3058,plain,
    ! [SV608: $i,SV425: $i] :
      ( ( ( subset @ SV425 @ SV608 )
        = $false )
      | ( ( subset @ ( relation_rng @ SV425 ) @ ( relation_rng @ SV608 ) )
        = $true )
      | ( ( relation @ SV608 )
        = $false )
      | ( ( relation @ SV425 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2999]) ).

thf(3059,plain,
    ! [SV426: $i,SV632: $i] :
      ( ( ( ~ ! [SY863: $i] :
                ( ~ ( subset @ SY863 @ SV632 )
                | ( in @ SY863 @ ( sK2_SY267 @ SV632 @ SV426 ) ) ) )
        = $false )
      | ( ( ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3000]) ).

thf(3060,plain,
    ! [SV426: $i,SV632: $i] :
      ( ( ( ~ ( in @ ( sK2_SY267 @ SV632 @ SV426 ) @ ( sK1_B @ SV426 ) ) )
        = $false )
      | ( ( ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3000]) ).

thf(3061,plain,
    ! [SV426: $i,SV653: $i] :
      ( ( ! [SY870: $i] :
            ( ~ ( in @ SV653 @ ( sK1_B @ SV426 ) )
            | ~ ( subset @ SY870 @ SV653 )
            | ( in @ SY870 @ ( sK1_B @ SV426 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3001]) ).

thf(3062,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
        = $false )
      | ( ( ~ ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 ) )
        = $true )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3003]) ).

thf(3063,plain,
    ! [SV511: $i,SV558: $i,SV654: $i] :
      ( ( ( ~ ( in @ SV654 @ SV558 )
          | ( subset @ SV654 @ SV511 ) )
        = $true )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3005]) ).

thf(3064,plain,
    ! [SV558: $i,SV511: $i,SV655: $i] :
      ( ( ( ~ ( subset @ SV655 @ SV511 )
          | ( in @ SV655 @ SV558 ) )
        = $true )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3006]) ).

thf(3065,plain,
    ! [SV610: $i,SV640: $i] :
      ( ( ( element @ SV640 @ SV610 )
        = $false )
      | ( ( in @ SV640 @ SV610 )
        = $true )
      | ( ( empty @ SV610 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3007]) ).

thf(3066,plain,
    ! [SV611: $i,SV641: $i] :
      ( ( ( in @ SV641 @ SV611 )
        = $false )
      | ( ( element @ SV641 @ SV611 )
        = $true )
      | ( ( empty @ SV611 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3008]) ).

thf(3067,plain,
    ! [SV612: $i,SV647: $i] :
      ( ( ( ~ ( element @ SV647 @ SV612 ) )
        = $true )
      | ( ( empty @ SV647 )
        = $true )
      | ( ( empty @ SV612 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3009]) ).

thf(3068,plain,
    ! [SV613: $i,SV648: $i] :
      ( ( ( ~ ( empty @ SV648 ) )
        = $true )
      | ( ( element @ SV648 @ SV613 )
        = $true )
      | ( ( empty @ SV613 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3010]) ).

thf(3069,plain,
    ! [SV649: $i,SV642: $i,SV514: $i] :
      ( ( ( ( sK30_B @ SV514 )
          = ( ordered_pair @ SV642 @ SV649 ) )
        = $false )
      | ( ( relation @ SV514 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3011]) ).

thf(3070,plain,
    ! [SV427: $i,SV617: $i] :
      ( ( ( ! [SY845: $i] :
              ~ ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ SY845 ) @ SV427 )
          | ~ ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) )
        = $true )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3014]) ).

thf(3071,plain,
    ! [SV427: $i,SV617: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ ( sK21_SY278 @ SV617 @ SV427 ) ) @ SV427 )
          | ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) )
        = $true )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3015]) ).

thf(3072,plain,
    ! [SV618: $i,SV427: $i] :
      ( ( ( ~ ! [SY846: $i] :
                ( ! [SY685: $i] :
                    ~ ( in @ ( ordered_pair @ SY846 @ SY685 ) @ SV427 )
                | ( in @ SY846 @ SV618 ) ) )
        = $false )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3016]) ).

thf(3073,plain,
    ! [SV427: $i,SV618: $i] :
      ( ( ( ~ ! [SY848: $i] :
                ( ~ ( in @ SY848 @ SV618 )
                | ( in @ ( ordered_pair @ SY848 @ ( sK19_D @ SY848 @ SV618 @ SV427 ) ) @ SV427 ) ) )
        = $false )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3016]) ).

thf(3074,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
          | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 ) )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3017]) ).

thf(3075,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
              | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
          | ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
              | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) ) )
        = $false )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3018]) ).

thf(3076,plain,
    ! [SV592: $i,SV567: $i,SV428: $i] :
      ( ( ( ! [SY820: $i] :
              ( ~ ( in @ SY820 @ SV428 )
              | ( in @ SY820 @ SV567 )
              | ( in @ SY820 @ SV592 ) ) )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3019]) ).

thf(3077,plain,
    ! [SV567: $i,SV428: $i,SV592: $i] :
      ( ( ( ~ ( ~ ! [SY821: $i] :
                    ( ~ ( in @ SY821 @ SV592 )
                    | ( in @ SY821 @ SV428 ) )
              | ~ ! [SY822: $i] :
                    ( ~ ( in @ SY822 @ SV592 )
                    | ~ ( in @ SY822 @ SV567 ) ) ) )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3020]) ).

thf(3078,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
          | ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3021]) ).

thf(3079,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
              | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
          | ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
              | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) ) )
        = $false )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3022]) ).

thf(3080,plain,
    ! [SV594: $i,SV571: $i,SV429: $i] :
      ( ( ( ! [SY823: $i] :
              ( ~ ( in @ SY823 @ SV429 )
              | ~ ( in @ SY823 @ SV571 )
              | ( in @ SY823 @ SV594 ) ) )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3023]) ).

thf(3081,plain,
    ! [SV571: $i,SV429: $i,SV594: $i] :
      ( ( ( ~ ( ~ ! [SY824: $i] :
                    ( ~ ( in @ SY824 @ SV594 )
                    | ( in @ SY824 @ SV429 ) )
              | ~ ! [SY825: $i] :
                    ( ~ ( in @ SY825 @ SV594 )
                    | ( in @ SY825 @ SV571 ) ) ) )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3024]) ).

thf(3082,plain,
    ! [SV430: $i,SV619: $i] :
      ( ( ( ! [SY849: $i] :
              ~ ( in @ ( ordered_pair @ SY849 @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
          | ~ ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) )
        = $true )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3025]) ).

thf(3083,plain,
    ! [SV430: $i,SV619: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV619 @ SV430 ) @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
          | ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) )
        = $true )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3026]) ).

thf(3084,plain,
    ! [SV620: $i,SV430: $i] :
      ( ( ( ~ ! [SY850: $i] :
                ( ! [SY705: $i] :
                    ~ ( in @ ( ordered_pair @ SY705 @ SY850 ) @ SV430 )
                | ( in @ SY850 @ SV620 ) ) )
        = $false )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3027]) ).

thf(3085,plain,
    ! [SV430: $i,SV620: $i] :
      ( ( ( ~ ! [SY852: $i] :
                ( ~ ( in @ SY852 @ SV620 )
                | ( in @ ( ordered_pair @ ( sK12_D @ SY852 @ SV620 @ SV430 ) @ SY852 ) @ SV430 ) ) )
        = $false )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3027]) ).

thf(3086,plain,
    ! [SV656: $i,SV525: $i,SV572: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV656 )
          | ~ ( in @ SV656 @ SV525 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3028]) ).

thf(3087,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ ( sK18_SY276 @ SV572 @ SV525 ) )
          | ~ ( in @ ( sK18_SY276 @ SV572 @ SV525 ) @ SV525 ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3029]) ).

thf(3088,plain,
    ! [SV573: $i,SV526: $i,SV657: $i] :
      ( ( ( ! [SY871: $i] :
              ( ~ ( in @ SV657 @ SY871 )
              | ~ ( in @ SY871 @ SV526 ) )
          | ( in @ SV657 @ SV573 ) )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3030]) ).

thf(3089,plain,
    ! [SV526: $i,SV573: $i,SV658: $i] :
      ( ( ( ~ ( in @ SV658 @ SV573 )
          | ~ ( ~ ( in @ SV658 @ ( sK16_D @ SV658 @ SV573 @ SV526 ) )
              | ~ ( in @ ( sK16_D @ SV658 @ SV573 @ SV526 ) @ SV526 ) ) )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3031]) ).

thf(3090,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
              | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
               != SV433 ) )
          | ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
              | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
               != SV580 ) ) )
        = $false )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3034]) ).

thf(3091,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
        = $true )
      | ( ( ( ( sK25_D @ SV595 @ SV580 @ SV433 )
            = SV433 )
          | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
            = SV580 ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3035]) ).

thf(3092,plain,
    ! [SV581: $i,SV433: $i,SV596: $i] :
      ( ( ( ! [SY826: $i] :
              ( ~ ( in @ SY826 @ SV596 )
              | ( SY826 = SV433 )
              | ( SY826 = SV581 ) ) )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3036]) ).

thf(3093,plain,
    ! [SV581: $i,SV596: $i,SV433: $i] :
      ( ( ( ~ ( ~ ! [SY827: $i] :
                    ( ( SY827 != SV433 )
                    | ( in @ SY827 @ SV596 ) )
              | ~ ! [SY828: $i] :
                    ( ( SY828 != SV581 )
                    | ( in @ SY828 @ SV596 ) ) ) )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3037]) ).

thf(3094,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 )
                  | ~ ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) ) )
              | ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
          | ~ ( ! [SY865: $i] :
                  ( ~ ( in @ SY865 @ SV621 )
                  | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SY865 ) )
              | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) ) )
        = $false )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3038]) ).

thf(3095,plain,
    ! [SV622: $i,SV644: $i] :
      ( ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY866: $i] :
                    ( ~ ( ~ ( in @ ( sK38_D @ SY866 @ SV644 @ SV622 ) @ SV622 )
                        | ~ ~ ( in @ SY866 @ ( sK38_D @ SY866 @ SV644 @ SV622 ) ) )
                    | ( in @ SY866 @ SV644 ) )
              | ~ ! [SY867: $i] :
                    ( ~ ( in @ SY867 @ SV644 )
                    | ! [SY858: $i] :
                        ( ~ ( in @ SY858 @ SV622 )
                        | ( in @ SY867 @ SY858 ) ) ) ) )
        = $true )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3039]) ).

thf(3096,plain,
    ! [SV623: $i,SV650: $i] :
      ( ( ( ( SV650
           != ( set_meet @ SV623 ) ) )
        = $true )
      | ( ( SV650 = empty_set )
        = $true )
      | ( ( SV623 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3040]) ).

thf(3097,plain,
    ! [SV624: $i,SV651: $i] :
      ( ( ( ( SV651 != empty_set ) )
        = $true )
      | ( ( SV651
          = ( set_meet @ SV624 ) )
        = $true )
      | ( ( SV624 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3041]) ).

thf(3098,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( ( sK27_C @ SV582 @ SV533 )
          = SV533 )
        = $false )
      | ( ( ~ ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 ) )
        = $true )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3042]) ).

thf(3099,plain,
    ! [SV583: $i,SV534: $i,SV659: $i] :
      ( ( ( ( SV659 != SV534 )
          | ( in @ SV659 @ SV583 ) )
        = $true )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3044]) ).

thf(3100,plain,
    ! [SV534: $i,SV583: $i,SV660: $i] :
      ( ( ( ~ ( in @ SV660 @ SV583 )
          | ( SV660 = SV534 ) )
        = $true )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3045]) ).

thf(3101,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( ~ ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
              | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) ) )
        = $false )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3048]) ).

thf(3102,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
              | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) ) )
        = $false )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3048]) ).

thf(3103,plain,
    ! [SV420: $i,SV598: $i] :
      ( ( ( ~ ! [SY829: $i,SY830: $i] :
                ( ~ ( in @ ( ordered_pair @ SY829 @ SY830 ) @ SV598 )
                | ( in @ ( ordered_pair @ SY830 @ SY829 ) @ SV420 ) )
          | ~ ! [SY831: $i,SY832: $i] :
                ( ~ ( in @ ( ordered_pair @ SY832 @ SY831 ) @ SV420 )
                | ( in @ ( ordered_pair @ SY831 @ SY832 ) @ SV598 ) ) )
        = $false )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3049]) ).

thf(3104,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
              | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) ) )
        = $false )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3050]) ).

thf(3105,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
              | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) ) )
        = $false )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3050]) ).

thf(3106,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 )
        = $true )
      | ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 )
        = $true )
      | ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3051]) ).

thf(3107,plain,
    ! [SV548: $i,SV423: $i,SV590: $i,SV661: $i] :
      ( ( ( ~ ( in @ SV661 @ SV590 )
          | ( in @ SV661 @ SV423 )
          | ( in @ SV661 @ SV548 ) )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3052]) ).

thf(3108,plain,
    ! [SV548: $i,SV590: $i,SV423: $i] :
      ( ( ( ~ ! [SY818: $i] :
                ( ~ ( in @ SY818 @ SV423 )
                | ( in @ SY818 @ SV590 ) )
          | ~ ! [SY819: $i] :
                ( ~ ( in @ SY819 @ SV548 )
                | ( in @ SY819 @ SV590 ) ) )
        = $false )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3053]) ).

thf(3109,plain,
    ! [SV662: $i,SV424: $i,SV652: $i] :
      ( ( ~ ( in @ SV652 @ ( sK35_B @ SV424 ) )
        | ~ ( subset @ SV662 @ SV652 )
        | ( in @ SV662 @ ( sK35_B @ SV424 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3056]) ).

thf(3110,plain,
    ! [SV426: $i,SV632: $i] :
      ( ( ( ! [SY863: $i] :
              ( ~ ( subset @ SY863 @ SV632 )
              | ( in @ SY863 @ ( sK2_SY267 @ SV632 @ SV426 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3059]) ).

thf(3111,plain,
    ! [SV426: $i,SV632: $i] :
      ( ( ( in @ ( sK2_SY267 @ SV632 @ SV426 ) @ ( sK1_B @ SV426 ) )
        = $true )
      | ( ( ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3060]) ).

thf(3112,plain,
    ! [SV663: $i,SV426: $i,SV653: $i] :
      ( ( ~ ( in @ SV653 @ ( sK1_B @ SV426 ) )
        | ~ ( subset @ SV663 @ SV653 )
        | ( in @ SV663 @ ( sK1_B @ SV426 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3061]) ).

thf(3113,plain,
    ! [SV510: $i,SV557: $i] :
      ( ( ( subset @ ( sK26_C @ SV557 @ SV510 ) @ SV510 )
        = $false )
      | ( ( in @ ( sK26_C @ SV557 @ SV510 ) @ SV557 )
        = $false )
      | ( ( SV557
          = ( powerset @ SV510 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3062]) ).

thf(3114,plain,
    ! [SV511: $i,SV558: $i,SV654: $i] :
      ( ( ( ~ ( in @ SV654 @ SV558 ) )
        = $true )
      | ( ( subset @ SV654 @ SV511 )
        = $true )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3063]) ).

thf(3115,plain,
    ! [SV558: $i,SV511: $i,SV655: $i] :
      ( ( ( ~ ( subset @ SV655 @ SV511 ) )
        = $true )
      | ( ( in @ SV655 @ SV558 )
        = $true )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3064]) ).

thf(3116,plain,
    ! [SV612: $i,SV647: $i] :
      ( ( ( element @ SV647 @ SV612 )
        = $false )
      | ( ( empty @ SV647 )
        = $true )
      | ( ( empty @ SV612 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3067]) ).

thf(3117,plain,
    ! [SV613: $i,SV648: $i] :
      ( ( ( empty @ SV648 )
        = $false )
      | ( ( element @ SV648 @ SV613 )
        = $true )
      | ( ( empty @ SV613 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3068]) ).

thf(3118,plain,
    ! [SV427: $i,SV617: $i] :
      ( ( ( ! [SY845: $i] :
              ~ ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ SY845 ) @ SV427 ) )
        = $true )
      | ( ( ~ ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) )
        = $true )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3070]) ).

thf(3119,plain,
    ! [SV427: $i,SV617: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ ( sK21_SY278 @ SV617 @ SV427 ) ) @ SV427 )
        = $true )
      | ( ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 )
        = $true )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3071]) ).

thf(3120,plain,
    ! [SV618: $i,SV427: $i] :
      ( ( ( ! [SY846: $i] :
              ( ! [SY685: $i] :
                  ~ ( in @ ( ordered_pair @ SY846 @ SY685 ) @ SV427 )
              | ( in @ SY846 @ SV618 ) ) )
        = $true )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3072]) ).

thf(3121,plain,
    ! [SV427: $i,SV618: $i] :
      ( ( ( ! [SY848: $i] :
              ( ~ ( in @ SY848 @ SV618 )
              | ( in @ ( ordered_pair @ SY848 @ ( sK19_D @ SY848 @ SV618 @ SV427 ) ) @ SV427 ) ) )
        = $true )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3073]) ).

thf(3122,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 ) )
        = $true )
      | ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3074]) ).

thf(3123,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
              | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) ) )
        = $false )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3075]) ).

thf(3124,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
              | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) ) )
        = $false )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3075]) ).

thf(3125,plain,
    ! [SV592: $i,SV567: $i,SV428: $i,SV664: $i] :
      ( ( ( ~ ( in @ SV664 @ SV428 )
          | ( in @ SV664 @ SV567 )
          | ( in @ SV664 @ SV592 ) )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3076]) ).

thf(3126,plain,
    ! [SV567: $i,SV428: $i,SV592: $i] :
      ( ( ( ~ ! [SY821: $i] :
                ( ~ ( in @ SY821 @ SV592 )
                | ( in @ SY821 @ SV428 ) )
          | ~ ! [SY822: $i] :
                ( ~ ( in @ SY822 @ SV592 )
                | ~ ( in @ SY822 @ SV567 ) ) )
        = $false )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3077]) ).

thf(3127,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3078]) ).

thf(3128,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
              | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) ) )
        = $false )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3079]) ).

thf(3129,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ~ ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
              | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) ) )
        = $false )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3079]) ).

thf(3130,plain,
    ! [SV594: $i,SV571: $i,SV429: $i,SV665: $i] :
      ( ( ( ~ ( in @ SV665 @ SV429 )
          | ~ ( in @ SV665 @ SV571 )
          | ( in @ SV665 @ SV594 ) )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3080]) ).

thf(3131,plain,
    ! [SV571: $i,SV429: $i,SV594: $i] :
      ( ( ( ~ ! [SY824: $i] :
                ( ~ ( in @ SY824 @ SV594 )
                | ( in @ SY824 @ SV429 ) )
          | ~ ! [SY825: $i] :
                ( ~ ( in @ SY825 @ SV594 )
                | ( in @ SY825 @ SV571 ) ) )
        = $false )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3081]) ).

thf(3132,plain,
    ! [SV430: $i,SV619: $i] :
      ( ( ( ! [SY849: $i] :
              ~ ( in @ ( ordered_pair @ SY849 @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 ) )
        = $true )
      | ( ( ~ ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) )
        = $true )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3082]) ).

thf(3133,plain,
    ! [SV430: $i,SV619: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK14_SY274 @ SV619 @ SV430 ) @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
        = $true )
      | ( ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 )
        = $true )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3083]) ).

thf(3134,plain,
    ! [SV620: $i,SV430: $i] :
      ( ( ( ! [SY850: $i] :
              ( ! [SY705: $i] :
                  ~ ( in @ ( ordered_pair @ SY705 @ SY850 ) @ SV430 )
              | ( in @ SY850 @ SV620 ) ) )
        = $true )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3084]) ).

thf(3135,plain,
    ! [SV430: $i,SV620: $i] :
      ( ( ( ! [SY852: $i] :
              ( ~ ( in @ SY852 @ SV620 )
              | ( in @ ( ordered_pair @ ( sK12_D @ SY852 @ SV620 @ SV430 ) @ SY852 ) @ SV430 ) ) )
        = $true )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3085]) ).

thf(3136,plain,
    ! [SV656: $i,SV525: $i,SV572: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV656 ) )
        = $true )
      | ( ( ~ ( in @ SV656 @ SV525 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3086]) ).

thf(3137,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ ( sK18_SY276 @ SV572 @ SV525 ) ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3087]) ).

thf(3138,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( ~ ( in @ ( sK18_SY276 @ SV572 @ SV525 ) @ SV525 ) )
        = $false )
      | ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3087]) ).

thf(3139,plain,
    ! [SV573: $i,SV526: $i,SV657: $i] :
      ( ( ( ! [SY871: $i] :
              ( ~ ( in @ SV657 @ SY871 )
              | ~ ( in @ SY871 @ SV526 ) ) )
        = $true )
      | ( ( in @ SV657 @ SV573 )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3088]) ).

thf(3140,plain,
    ! [SV526: $i,SV573: $i,SV658: $i] :
      ( ( ( ~ ( in @ SV658 @ SV573 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV658 @ ( sK16_D @ SV658 @ SV573 @ SV526 ) )
              | ~ ( in @ ( sK16_D @ SV658 @ SV573 @ SV526 ) @ SV526 ) ) )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3089]) ).

thf(3141,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
              | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
               != SV433 ) ) )
        = $false )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3090]) ).

thf(3142,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
              | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
               != SV580 ) ) )
        = $false )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3090]) ).

thf(3143,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ( sK25_D @ SV595 @ SV580 @ SV433 )
          = SV433 )
        = $true )
      | ( ( ( sK25_D @ SV595 @ SV580 @ SV433 )
          = SV580 )
        = $true )
      | ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3091]) ).

thf(3144,plain,
    ! [SV581: $i,SV433: $i,SV596: $i,SV666: $i] :
      ( ( ( ~ ( in @ SV666 @ SV596 )
          | ( SV666 = SV433 )
          | ( SV666 = SV581 ) )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3092]) ).

thf(3145,plain,
    ! [SV581: $i,SV596: $i,SV433: $i] :
      ( ( ( ~ ! [SY827: $i] :
                ( ( SY827 != SV433 )
                | ( in @ SY827 @ SV596 ) )
          | ~ ! [SY828: $i] :
                ( ( SY828 != SV581 )
                | ( in @ SY828 @ SV596 ) ) )
        = $false )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3093]) ).

thf(3146,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 )
                  | ~ ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) ) )
              | ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) ) )
        = $false )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3094]) ).

thf(3147,plain,
    ! [SV643: $i,SV621: $i] :
      ( ( ( ~ ( ! [SY865: $i] :
                  ( ~ ( in @ SY865 @ SV621 )
                  | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SY865 ) )
              | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) ) )
        = $false )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3094]) ).

thf(3148,plain,
    ! [SV622: $i,SV644: $i] :
      ( ( ( ~ ! [SY866: $i] :
                ( ~ ( ~ ( in @ ( sK38_D @ SY866 @ SV644 @ SV622 ) @ SV622 )
                    | ~ ~ ( in @ SY866 @ ( sK38_D @ SY866 @ SV644 @ SV622 ) ) )
                | ( in @ SY866 @ SV644 ) )
          | ~ ! [SY867: $i] :
                ( ~ ( in @ SY867 @ SV644 )
                | ! [SY858: $i] :
                    ( ~ ( in @ SY858 @ SV622 )
                    | ( in @ SY867 @ SY858 ) ) ) )
        = $false )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3095]) ).

thf(3149,plain,
    ! [SV623: $i,SV650: $i] :
      ( ( ( SV650
          = ( set_meet @ SV623 ) )
        = $false )
      | ( ( SV650 = empty_set )
        = $true )
      | ( ( SV623 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3096]) ).

thf(3150,plain,
    ! [SV624: $i,SV651: $i] :
      ( ( ( SV651 = empty_set )
        = $false )
      | ( ( SV651
          = ( set_meet @ SV624 ) )
        = $true )
      | ( ( SV624 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3097]) ).

thf(3151,plain,
    ! [SV533: $i,SV582: $i] :
      ( ( ( in @ ( sK27_C @ SV582 @ SV533 ) @ SV582 )
        = $false )
      | ( ( ( sK27_C @ SV582 @ SV533 )
          = SV533 )
        = $false )
      | ( ( SV582
          = ( singleton @ SV533 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3098]) ).

thf(3152,plain,
    ! [SV583: $i,SV534: $i,SV659: $i] :
      ( ( ( ( SV659 != SV534 ) )
        = $true )
      | ( ( in @ SV659 @ SV583 )
        = $true )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3099]) ).

thf(3153,plain,
    ! [SV534: $i,SV583: $i,SV660: $i] :
      ( ( ( ~ ( in @ SV660 @ SV583 ) )
        = $true )
      | ( ( SV660 = SV534 )
        = $true )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3100]) ).

thf(3154,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
          | ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) )
        = $true )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3101]) ).

thf(3155,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
          | ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) )
        = $true )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3102]) ).

thf(3156,plain,
    ! [SV420: $i,SV598: $i] :
      ( ( ( ~ ! [SY829: $i,SY830: $i] :
                ( ~ ( in @ ( ordered_pair @ SY829 @ SY830 ) @ SV598 )
                | ( in @ ( ordered_pair @ SY830 @ SY829 ) @ SV420 ) ) )
        = $false )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3103]) ).

thf(3157,plain,
    ! [SV598: $i,SV420: $i] :
      ( ( ( ~ ! [SY831: $i,SY832: $i] :
                ( ~ ( in @ ( ordered_pair @ SY832 @ SY831 ) @ SV420 )
                | ( in @ ( ordered_pair @ SY831 @ SY832 ) @ SV598 ) ) )
        = $false )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3103]) ).

thf(3158,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
          | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3104]) ).

thf(3159,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
          | ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3105]) ).

thf(3160,plain,
    ! [SV548: $i,SV423: $i,SV590: $i,SV661: $i] :
      ( ( ( ~ ( in @ SV661 @ SV590 ) )
        = $true )
      | ( ( ( in @ SV661 @ SV423 )
          | ( in @ SV661 @ SV548 ) )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3107]) ).

thf(3161,plain,
    ! [SV548: $i,SV590: $i,SV423: $i] :
      ( ( ( ~ ! [SY818: $i] :
                ( ~ ( in @ SY818 @ SV423 )
                | ( in @ SY818 @ SV590 ) ) )
        = $false )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3108]) ).

thf(3162,plain,
    ! [SV423: $i,SV590: $i,SV548: $i] :
      ( ( ( ~ ! [SY819: $i] :
                ( ~ ( in @ SY819 @ SV548 )
                | ( in @ SY819 @ SV590 ) ) )
        = $false )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3108]) ).

thf(3163,plain,
    ! [SV662: $i,SV424: $i,SV652: $i] :
      ( ( ( ~ ( in @ SV652 @ ( sK35_B @ SV424 ) )
          | ~ ( subset @ SV662 @ SV652 ) )
        = $true )
      | ( ( in @ SV662 @ ( sK35_B @ SV424 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3109]) ).

thf(3164,plain,
    ! [SV426: $i,SV632: $i,SV667: $i] :
      ( ( ( ~ ( subset @ SV667 @ SV632 )
          | ( in @ SV667 @ ( sK2_SY267 @ SV632 @ SV426 ) ) )
        = $true )
      | ( ( ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3110]) ).

thf(3165,plain,
    ! [SV426: $i,SV632: $i] :
      ( ( ( in @ SV632 @ ( sK1_B @ SV426 ) )
        = $false )
      | ( ( in @ ( sK2_SY267 @ SV632 @ SV426 ) @ ( sK1_B @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3111]) ).

thf(3166,plain,
    ! [SV663: $i,SV426: $i,SV653: $i] :
      ( ( ( ~ ( in @ SV653 @ ( sK1_B @ SV426 ) )
          | ~ ( subset @ SV663 @ SV653 ) )
        = $true )
      | ( ( in @ SV663 @ ( sK1_B @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3112]) ).

thf(3167,plain,
    ! [SV511: $i,SV558: $i,SV654: $i] :
      ( ( ( in @ SV654 @ SV558 )
        = $false )
      | ( ( subset @ SV654 @ SV511 )
        = $true )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3114]) ).

thf(3168,plain,
    ! [SV558: $i,SV511: $i,SV655: $i] :
      ( ( ( subset @ SV655 @ SV511 )
        = $false )
      | ( ( in @ SV655 @ SV558 )
        = $true )
      | ( ( SV558
          = ( powerset @ SV511 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3115]) ).

thf(3169,plain,
    ! [SV668: $i,SV427: $i,SV617: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ SV668 ) @ SV427 ) )
        = $true )
      | ( ( ~ ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) )
        = $true )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3118]) ).

thf(3170,plain,
    ! [SV618: $i,SV427: $i,SV669: $i] :
      ( ( ( ! [SY872: $i] :
              ~ ( in @ ( ordered_pair @ SV669 @ SY872 ) @ SV427 )
          | ( in @ SV669 @ SV618 ) )
        = $true )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3120]) ).

thf(3171,plain,
    ! [SV427: $i,SV618: $i,SV670: $i] :
      ( ( ( ~ ( in @ SV670 @ SV618 )
          | ( in @ ( ordered_pair @ SV670 @ ( sK19_D @ SV670 @ SV618 @ SV427 ) ) @ SV427 ) )
        = $true )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3121]) ).

thf(3172,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
        = $false )
      | ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
        = $true )
      | ( ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3122]) ).

thf(3173,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
          | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3123]) ).

thf(3174,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
          | ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 ) )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3124]) ).

thf(3175,plain,
    ! [SV592: $i,SV567: $i,SV428: $i,SV664: $i] :
      ( ( ( ~ ( in @ SV664 @ SV428 )
          | ( in @ SV664 @ SV567 ) )
        = $true )
      | ( ( in @ SV664 @ SV592 )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3125]) ).

thf(3176,plain,
    ! [SV567: $i,SV428: $i,SV592: $i] :
      ( ( ( ~ ! [SY821: $i] :
                ( ~ ( in @ SY821 @ SV592 )
                | ( in @ SY821 @ SV428 ) ) )
        = $false )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3126]) ).

thf(3177,plain,
    ! [SV428: $i,SV567: $i,SV592: $i] :
      ( ( ( ~ ! [SY822: $i] :
                ( ~ ( in @ SY822 @ SV592 )
                | ~ ( in @ SY822 @ SV567 ) ) )
        = $false )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3126]) ).

thf(3178,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
        = $false )
      | ( ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3127]) ).

thf(3179,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
          | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3128]) ).

thf(3180,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
          | ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3129]) ).

thf(3181,plain,
    ! [SV594: $i,SV571: $i,SV429: $i,SV665: $i] :
      ( ( ( ~ ( in @ SV665 @ SV429 )
          | ~ ( in @ SV665 @ SV571 ) )
        = $true )
      | ( ( in @ SV665 @ SV594 )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3130]) ).

thf(3182,plain,
    ! [SV571: $i,SV429: $i,SV594: $i] :
      ( ( ( ~ ! [SY824: $i] :
                ( ~ ( in @ SY824 @ SV594 )
                | ( in @ SY824 @ SV429 ) ) )
        = $false )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3131]) ).

thf(3183,plain,
    ! [SV429: $i,SV571: $i,SV594: $i] :
      ( ( ( ~ ! [SY825: $i] :
                ( ~ ( in @ SY825 @ SV594 )
                | ( in @ SY825 @ SV571 ) ) )
        = $false )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3131]) ).

thf(3184,plain,
    ! [SV430: $i,SV619: $i,SV671: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV671 @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 ) )
        = $true )
      | ( ( ~ ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) )
        = $true )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3132]) ).

thf(3185,plain,
    ! [SV620: $i,SV430: $i,SV672: $i] :
      ( ( ( ! [SY873: $i] :
              ~ ( in @ ( ordered_pair @ SY873 @ SV672 ) @ SV430 )
          | ( in @ SV672 @ SV620 ) )
        = $true )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3134]) ).

thf(3186,plain,
    ! [SV430: $i,SV620: $i,SV673: $i] :
      ( ( ( ~ ( in @ SV673 @ SV620 )
          | ( in @ ( ordered_pair @ ( sK12_D @ SV673 @ SV620 @ SV430 ) @ SV673 ) @ SV430 ) )
        = $true )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3135]) ).

thf(3187,plain,
    ! [SV656: $i,SV525: $i,SV572: $i] :
      ( ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV656 )
        = $false )
      | ( ( ~ ( in @ SV656 @ SV525 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3136]) ).

thf(3188,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ ( sK18_SY276 @ SV572 @ SV525 ) )
        = $true )
      | ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3137]) ).

thf(3189,plain,
    ! [SV525: $i,SV572: $i] :
      ( ( ( in @ ( sK18_SY276 @ SV572 @ SV525 ) @ SV525 )
        = $true )
      | ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3138]) ).

thf(3190,plain,
    ! [SV573: $i,SV526: $i,SV674: $i,SV657: $i] :
      ( ( ( ~ ( in @ SV657 @ SV674 )
          | ~ ( in @ SV674 @ SV526 ) )
        = $true )
      | ( ( in @ SV657 @ SV573 )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3139]) ).

thf(3191,plain,
    ! [SV526: $i,SV573: $i,SV658: $i] :
      ( ( ( in @ SV658 @ SV573 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV658 @ ( sK16_D @ SV658 @ SV573 @ SV526 ) )
              | ~ ( in @ ( sK16_D @ SV658 @ SV573 @ SV526 ) @ SV526 ) ) )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3140]) ).

thf(3192,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
          | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
           != SV433 ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3141]) ).

thf(3193,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
          | ( ( sK25_D @ SV595 @ SV580 @ SV433 )
           != SV580 ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3142]) ).

thf(3194,plain,
    ! [SV581: $i,SV433: $i,SV596: $i,SV666: $i] :
      ( ( ( ~ ( in @ SV666 @ SV596 ) )
        = $true )
      | ( ( ( SV666 = SV433 )
          | ( SV666 = SV581 ) )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3144]) ).

thf(3195,plain,
    ! [SV581: $i,SV596: $i,SV433: $i] :
      ( ( ( ~ ! [SY827: $i] :
                ( ( SY827 != SV433 )
                | ( in @ SY827 @ SV596 ) ) )
        = $false )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3145]) ).

thf(3196,plain,
    ! [SV433: $i,SV596: $i,SV581: $i] :
      ( ( ( ~ ! [SY828: $i] :
                ( ( SY828 != SV581 )
                | ( in @ SY828 @ SV596 ) ) )
        = $false )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3145]) ).

thf(3197,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 )
              | ~ ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) ) )
          | ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3146]) ).

thf(3198,plain,
    ! [SV643: $i,SV621: $i] :
      ( ( ( ! [SY865: $i] :
              ( ~ ( in @ SY865 @ SV621 )
              | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SY865 ) )
          | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3147]) ).

thf(3199,plain,
    ! [SV622: $i,SV644: $i] :
      ( ( ( ~ ! [SY866: $i] :
                ( ~ ( ~ ( in @ ( sK38_D @ SY866 @ SV644 @ SV622 ) @ SV622 )
                    | ~ ~ ( in @ SY866 @ ( sK38_D @ SY866 @ SV644 @ SV622 ) ) )
                | ( in @ SY866 @ SV644 ) ) )
        = $false )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3148]) ).

thf(3200,plain,
    ! [SV622: $i,SV644: $i] :
      ( ( ( ~ ! [SY867: $i] :
                ( ~ ( in @ SY867 @ SV644 )
                | ! [SY858: $i] :
                    ( ~ ( in @ SY858 @ SV622 )
                    | ( in @ SY867 @ SY858 ) ) ) )
        = $false )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3148]) ).

thf(3201,plain,
    ! [SV583: $i,SV534: $i,SV659: $i] :
      ( ( ( SV659 = SV534 )
        = $false )
      | ( ( in @ SV659 @ SV583 )
        = $true )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3152]) ).

thf(3202,plain,
    ! [SV534: $i,SV583: $i,SV660: $i] :
      ( ( ( in @ SV660 @ SV583 )
        = $false )
      | ( ( SV660 = SV534 )
        = $true )
      | ( ( SV583
          = ( singleton @ SV534 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3153]) ).

thf(3203,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) )
        = $true )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3154]) ).

thf(3204,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 )
        = $true )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3155]) ).

thf(3205,plain,
    ! [SV420: $i,SV598: $i] :
      ( ( ( ! [SY829: $i,SY830: $i] :
              ( ~ ( in @ ( ordered_pair @ SY829 @ SY830 ) @ SV598 )
              | ( in @ ( ordered_pair @ SY830 @ SY829 ) @ SV420 ) ) )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3156]) ).

thf(3206,plain,
    ! [SV598: $i,SV420: $i] :
      ( ( ( ! [SY831: $i,SY832: $i] :
              ( ~ ( in @ ( ordered_pair @ SY832 @ SY831 ) @ SV420 )
              | ( in @ ( ordered_pair @ SY831 @ SY832 ) @ SV598 ) ) )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3157]) ).

thf(3207,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3158]) ).

thf(3208,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3159]) ).

thf(3209,plain,
    ! [SV548: $i,SV423: $i,SV590: $i,SV661: $i] :
      ( ( ( in @ SV661 @ SV590 )
        = $false )
      | ( ( ( in @ SV661 @ SV423 )
          | ( in @ SV661 @ SV548 ) )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3160]) ).

thf(3210,plain,
    ! [SV548: $i,SV590: $i,SV423: $i] :
      ( ( ( ! [SY818: $i] :
              ( ~ ( in @ SY818 @ SV423 )
              | ( in @ SY818 @ SV590 ) ) )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3161]) ).

thf(3211,plain,
    ! [SV423: $i,SV590: $i,SV548: $i] :
      ( ( ( ! [SY819: $i] :
              ( ~ ( in @ SY819 @ SV548 )
              | ( in @ SY819 @ SV590 ) ) )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3162]) ).

thf(3212,plain,
    ! [SV662: $i,SV424: $i,SV652: $i] :
      ( ( ( ~ ( in @ SV652 @ ( sK35_B @ SV424 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV662 @ SV652 ) )
        = $true )
      | ( ( in @ SV662 @ ( sK35_B @ SV424 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3163]) ).

thf(3213,plain,
    ! [SV426: $i,SV632: $i,SV667: $i] :
      ( ( ( ~ ( subset @ SV667 @ SV632 ) )
        = $true )
      | ( ( in @ SV667 @ ( sK2_SY267 @ SV632 @ SV426 ) )
        = $true )
      | ( ( ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3164]) ).

thf(3214,plain,
    ! [SV663: $i,SV426: $i,SV653: $i] :
      ( ( ( ~ ( in @ SV653 @ ( sK1_B @ SV426 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV663 @ SV653 ) )
        = $true )
      | ( ( in @ SV663 @ ( sK1_B @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3166]) ).

thf(3215,plain,
    ! [SV668: $i,SV427: $i,SV617: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ SV668 ) @ SV427 )
        = $false )
      | ( ( ~ ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 ) )
        = $true )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3169]) ).

thf(3216,plain,
    ! [SV618: $i,SV427: $i,SV669: $i] :
      ( ( ( ! [SY872: $i] :
              ~ ( in @ ( ordered_pair @ SV669 @ SY872 ) @ SV427 ) )
        = $true )
      | ( ( in @ SV669 @ SV618 )
        = $true )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3170]) ).

thf(3217,plain,
    ! [SV427: $i,SV618: $i,SV670: $i] :
      ( ( ( ~ ( in @ SV670 @ SV618 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV670 @ ( sK19_D @ SV670 @ SV618 @ SV427 ) ) @ SV427 )
        = $true )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3171]) ).

thf(3218,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 )
        = $false )
      | ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
        = $true )
      | ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
        = $false )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3172]) ).

thf(3219,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV428 )
        = $true )
      | ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3173]) ).

thf(3220,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( ~ ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 ) )
        = $true )
      | ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3174]) ).

thf(3221,plain,
    ! [SV592: $i,SV567: $i,SV428: $i,SV664: $i] :
      ( ( ( ~ ( in @ SV664 @ SV428 ) )
        = $true )
      | ( ( in @ SV664 @ SV567 )
        = $true )
      | ( ( in @ SV664 @ SV592 )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3175]) ).

thf(3222,plain,
    ! [SV567: $i,SV428: $i,SV592: $i] :
      ( ( ( ! [SY821: $i] :
              ( ~ ( in @ SY821 @ SV592 )
              | ( in @ SY821 @ SV428 ) ) )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3176]) ).

thf(3223,plain,
    ! [SV428: $i,SV567: $i,SV592: $i] :
      ( ( ( ! [SY822: $i] :
              ( ~ ( in @ SY822 @ SV592 )
              | ~ ( in @ SY822 @ SV567 ) ) )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3177]) ).

thf(3224,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
        = $false )
      | ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
        = $false )
      | ( ( ~ ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 ) )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3178]) ).

thf(3225,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
        = $true )
      | ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3179]) ).

thf(3226,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
        = $true )
      | ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 )
        = $true )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3180]) ).

thf(3227,plain,
    ! [SV594: $i,SV571: $i,SV429: $i,SV665: $i] :
      ( ( ( ~ ( in @ SV665 @ SV429 ) )
        = $true )
      | ( ( ~ ( in @ SV665 @ SV571 ) )
        = $true )
      | ( ( in @ SV665 @ SV594 )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3181]) ).

thf(3228,plain,
    ! [SV571: $i,SV429: $i,SV594: $i] :
      ( ( ( ! [SY824: $i] :
              ( ~ ( in @ SY824 @ SV594 )
              | ( in @ SY824 @ SV429 ) ) )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3182]) ).

thf(3229,plain,
    ! [SV429: $i,SV571: $i,SV594: $i] :
      ( ( ( ! [SY825: $i] :
              ( ~ ( in @ SY825 @ SV594 )
              | ( in @ SY825 @ SV571 ) ) )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3183]) ).

thf(3230,plain,
    ! [SV430: $i,SV619: $i,SV671: $i] :
      ( ( ( in @ ( ordered_pair @ SV671 @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
        = $false )
      | ( ( ~ ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 ) )
        = $true )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3184]) ).

thf(3231,plain,
    ! [SV620: $i,SV430: $i,SV672: $i] :
      ( ( ( ! [SY873: $i] :
              ~ ( in @ ( ordered_pair @ SY873 @ SV672 ) @ SV430 ) )
        = $true )
      | ( ( in @ SV672 @ SV620 )
        = $true )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3185]) ).

thf(3232,plain,
    ! [SV430: $i,SV620: $i,SV673: $i] :
      ( ( ( ~ ( in @ SV673 @ SV620 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK12_D @ SV673 @ SV620 @ SV430 ) @ SV673 ) @ SV430 )
        = $true )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3186]) ).

thf(3233,plain,
    ! [SV572: $i,SV525: $i,SV656: $i] :
      ( ( ( in @ SV656 @ SV525 )
        = $false )
      | ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV656 )
        = $false )
      | ( ( ~ ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 ) )
        = $true )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3187]) ).

thf(3234,plain,
    ! [SV573: $i,SV526: $i,SV674: $i,SV657: $i] :
      ( ( ( ~ ( in @ SV657 @ SV674 ) )
        = $true )
      | ( ( ~ ( in @ SV674 @ SV526 ) )
        = $true )
      | ( ( in @ SV657 @ SV573 )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3190]) ).

thf(3235,plain,
    ! [SV526: $i,SV573: $i,SV658: $i] :
      ( ( ( ~ ( in @ SV658 @ ( sK16_D @ SV658 @ SV573 @ SV526 ) )
          | ~ ( in @ ( sK16_D @ SV658 @ SV573 @ SV526 ) @ SV526 ) )
        = $false )
      | ( ( in @ SV658 @ SV573 )
        = $false )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3191]) ).

thf(3236,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 ) )
        = $true )
      | ( ( ( ( sK25_D @ SV595 @ SV580 @ SV433 )
           != SV433 ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3192]) ).

thf(3237,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ~ ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 ) )
        = $true )
      | ( ( ( ( sK25_D @ SV595 @ SV580 @ SV433 )
           != SV580 ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3193]) ).

thf(3238,plain,
    ! [SV581: $i,SV433: $i,SV596: $i,SV666: $i] :
      ( ( ( in @ SV666 @ SV596 )
        = $false )
      | ( ( ( SV666 = SV433 )
          | ( SV666 = SV581 ) )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3194]) ).

thf(3239,plain,
    ! [SV581: $i,SV596: $i,SV433: $i] :
      ( ( ( ! [SY827: $i] :
              ( ( SY827 != SV433 )
              | ( in @ SY827 @ SV596 ) ) )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3195]) ).

thf(3240,plain,
    ! [SV433: $i,SV596: $i,SV581: $i] :
      ( ( ( ! [SY828: $i] :
              ( ( SY828 != SV581 )
              | ( in @ SY828 @ SV596 ) ) )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3196]) ).

thf(3241,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 )
              | ~ ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3197]) ).

thf(3242,plain,
    ! [SV643: $i,SV621: $i] :
      ( ( ( ! [SY865: $i] :
              ( ~ ( in @ SY865 @ SV621 )
              | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SY865 ) ) )
        = $true )
      | ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3198]) ).

thf(3243,plain,
    ! [SV622: $i,SV644: $i] :
      ( ( ( ! [SY866: $i] :
              ( ~ ( ~ ( in @ ( sK38_D @ SY866 @ SV644 @ SV622 ) @ SV622 )
                  | ~ ~ ( in @ SY866 @ ( sK38_D @ SY866 @ SV644 @ SV622 ) ) )
              | ( in @ SY866 @ SV644 ) ) )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3199]) ).

thf(3244,plain,
    ! [SV622: $i,SV644: $i] :
      ( ( ( ! [SY867: $i] :
              ( ~ ( in @ SY867 @ SV644 )
              | ! [SY858: $i] :
                  ( ~ ( in @ SY858 @ SV622 )
                  | ( in @ SY867 @ SY858 ) ) ) )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3200]) ).

thf(3245,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 ) )
        = $true )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3203]) ).

thf(3246,plain,
    ! [SV420: $i,SV598: $i,SV675: $i] :
      ( ( ( ! [SY874: $i] :
              ( ~ ( in @ ( ordered_pair @ SV675 @ SY874 ) @ SV598 )
              | ( in @ ( ordered_pair @ SY874 @ SV675 ) @ SV420 ) ) )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3205]) ).

thf(3247,plain,
    ! [SV598: $i,SV420: $i,SV676: $i] :
      ( ( ( ! [SY875: $i] :
              ( ~ ( in @ ( ordered_pair @ SY875 @ SV676 ) @ SV420 )
              | ( in @ ( ordered_pair @ SV676 @ SY875 ) @ SV598 ) ) )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3206]) ).

thf(3248,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
        = $false )
      | ( ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3207]) ).

thf(3249,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
        = $false )
      | ( ( ~ ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 ) )
        = $true )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3208]) ).

thf(3250,plain,
    ! [SV590: $i,SV548: $i,SV423: $i,SV661: $i] :
      ( ( ( in @ SV661 @ SV423 )
        = $true )
      | ( ( in @ SV661 @ SV548 )
        = $true )
      | ( ( in @ SV661 @ SV590 )
        = $false )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3209]) ).

thf(3251,plain,
    ! [SV548: $i,SV590: $i,SV423: $i,SV677: $i] :
      ( ( ( ~ ( in @ SV677 @ SV423 )
          | ( in @ SV677 @ SV590 ) )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3210]) ).

thf(3252,plain,
    ! [SV423: $i,SV590: $i,SV548: $i,SV678: $i] :
      ( ( ( ~ ( in @ SV678 @ SV548 )
          | ( in @ SV678 @ SV590 ) )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3211]) ).

thf(3253,plain,
    ! [SV662: $i,SV424: $i,SV652: $i] :
      ( ( ( in @ SV652 @ ( sK35_B @ SV424 ) )
        = $false )
      | ( ( ~ ( subset @ SV662 @ SV652 ) )
        = $true )
      | ( ( in @ SV662 @ ( sK35_B @ SV424 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3212]) ).

thf(3254,plain,
    ! [SV426: $i,SV632: $i,SV667: $i] :
      ( ( ( subset @ SV667 @ SV632 )
        = $false )
      | ( ( in @ SV667 @ ( sK2_SY267 @ SV632 @ SV426 ) )
        = $true )
      | ( ( ~ ( in @ SV632 @ ( sK1_B @ SV426 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3213]) ).

thf(3255,plain,
    ! [SV663: $i,SV426: $i,SV653: $i] :
      ( ( ( in @ SV653 @ ( sK1_B @ SV426 ) )
        = $false )
      | ( ( ~ ( subset @ SV663 @ SV653 ) )
        = $true )
      | ( ( in @ SV663 @ ( sK1_B @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3214]) ).

thf(3256,plain,
    ! [SV668: $i,SV427: $i,SV617: $i] :
      ( ( ( in @ ( sK20_C @ SV617 @ SV427 ) @ SV617 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK20_C @ SV617 @ SV427 ) @ SV668 ) @ SV427 )
        = $false )
      | ( ( SV617
          = ( relation_dom @ SV427 ) )
        = $true )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3215]) ).

thf(3257,plain,
    ! [SV618: $i,SV427: $i,SV679: $i,SV669: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV669 @ SV679 ) @ SV427 ) )
        = $true )
      | ( ( in @ SV669 @ SV618 )
        = $true )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3216]) ).

thf(3258,plain,
    ! [SV427: $i,SV618: $i,SV670: $i] :
      ( ( ( in @ SV670 @ SV618 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV670 @ ( sK19_D @ SV670 @ SV618 @ SV427 ) ) @ SV427 )
        = $true )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3217]) ).

thf(3259,plain,
    ! [SV428: $i,SV566: $i,SV591: $i] :
      ( ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV566 )
        = $false )
      | ( ( in @ ( sK15_D @ SV591 @ SV566 @ SV428 ) @ SV591 )
        = $true )
      | ( ( SV591
          = ( set_difference @ SV428 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3220]) ).

thf(3260,plain,
    ! [SV592: $i,SV567: $i,SV428: $i,SV664: $i] :
      ( ( ( in @ SV664 @ SV428 )
        = $false )
      | ( ( in @ SV664 @ SV567 )
        = $true )
      | ( ( in @ SV664 @ SV592 )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3221]) ).

thf(3261,plain,
    ! [SV567: $i,SV428: $i,SV592: $i,SV680: $i] :
      ( ( ( ~ ( in @ SV680 @ SV592 )
          | ( in @ SV680 @ SV428 ) )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3222]) ).

thf(3262,plain,
    ! [SV428: $i,SV567: $i,SV592: $i,SV681: $i] :
      ( ( ( ~ ( in @ SV681 @ SV592 )
          | ~ ( in @ SV681 @ SV567 ) )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3223]) ).

thf(3263,plain,
    ! [SV429: $i,SV570: $i,SV593: $i] :
      ( ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV593 )
        = $false )
      | ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV429 )
        = $false )
      | ( ( in @ ( sK22_D @ SV593 @ SV570 @ SV429 ) @ SV570 )
        = $false )
      | ( ( SV593
          = ( set_intersection2 @ SV429 @ SV570 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3224]) ).

thf(3264,plain,
    ! [SV594: $i,SV571: $i,SV429: $i,SV665: $i] :
      ( ( ( in @ SV665 @ SV429 )
        = $false )
      | ( ( ~ ( in @ SV665 @ SV571 ) )
        = $true )
      | ( ( in @ SV665 @ SV594 )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3227]) ).

thf(3265,plain,
    ! [SV571: $i,SV429: $i,SV594: $i,SV682: $i] :
      ( ( ( ~ ( in @ SV682 @ SV594 )
          | ( in @ SV682 @ SV429 ) )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3228]) ).

thf(3266,plain,
    ! [SV429: $i,SV571: $i,SV594: $i,SV683: $i] :
      ( ( ( ~ ( in @ SV683 @ SV594 )
          | ( in @ SV683 @ SV571 ) )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3229]) ).

thf(3267,plain,
    ! [SV671: $i,SV430: $i,SV619: $i] :
      ( ( ( in @ ( sK13_C @ SV619 @ SV430 ) @ SV619 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV671 @ ( sK13_C @ SV619 @ SV430 ) ) @ SV430 )
        = $false )
      | ( ( SV619
          = ( relation_rng @ SV430 ) )
        = $true )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3230]) ).

thf(3268,plain,
    ! [SV620: $i,SV430: $i,SV672: $i,SV684: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV684 @ SV672 ) @ SV430 ) )
        = $true )
      | ( ( in @ SV672 @ SV620 )
        = $true )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3231]) ).

thf(3269,plain,
    ! [SV430: $i,SV620: $i,SV673: $i] :
      ( ( ( in @ SV673 @ SV620 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK12_D @ SV673 @ SV620 @ SV430 ) @ SV673 ) @ SV430 )
        = $true )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3232]) ).

thf(3270,plain,
    ! [SV656: $i,SV525: $i,SV572: $i] :
      ( ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV572 )
        = $false )
      | ( ( in @ ( sK17_C @ SV572 @ SV525 ) @ SV656 )
        = $false )
      | ( ( in @ SV656 @ SV525 )
        = $false )
      | ( ( SV572
          = ( union @ SV525 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3233]) ).

thf(3271,plain,
    ! [SV573: $i,SV526: $i,SV674: $i,SV657: $i] :
      ( ( ( in @ SV657 @ SV674 )
        = $false )
      | ( ( ~ ( in @ SV674 @ SV526 ) )
        = $true )
      | ( ( in @ SV657 @ SV573 )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3234]) ).

thf(3272,plain,
    ! [SV526: $i,SV573: $i,SV658: $i] :
      ( ( ( ~ ( in @ SV658 @ ( sK16_D @ SV658 @ SV573 @ SV526 ) ) )
        = $false )
      | ( ( in @ SV658 @ SV573 )
        = $false )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3235]) ).

thf(3273,plain,
    ! [SV526: $i,SV573: $i,SV658: $i] :
      ( ( ( ~ ( in @ ( sK16_D @ SV658 @ SV573 @ SV526 ) @ SV526 ) )
        = $false )
      | ( ( in @ SV658 @ SV573 )
        = $false )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3235]) ).

thf(3274,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
        = $false )
      | ( ( ( ( sK25_D @ SV595 @ SV580 @ SV433 )
           != SV433 ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3236]) ).

thf(3275,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
        = $false )
      | ( ( ( ( sK25_D @ SV595 @ SV580 @ SV433 )
           != SV580 ) )
        = $true )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3237]) ).

thf(3276,plain,
    ! [SV596: $i,SV581: $i,SV433: $i,SV666: $i] :
      ( ( ( SV666 = SV433 )
        = $true )
      | ( ( SV666 = SV581 )
        = $true )
      | ( ( in @ SV666 @ SV596 )
        = $false )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3238]) ).

thf(3277,plain,
    ! [SV581: $i,SV596: $i,SV433: $i,SV685: $i] :
      ( ( ( ( SV685 != SV433 )
          | ( in @ SV685 @ SV596 ) )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3239]) ).

thf(3278,plain,
    ! [SV433: $i,SV596: $i,SV581: $i,SV686: $i] :
      ( ( ( ( SV686 != SV581 )
          | ( in @ SV686 @ SV596 ) )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3240]) ).

thf(3279,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 )
          | ~ ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3241]) ).

thf(3280,plain,
    ! [SV643: $i,SV621: $i,SV687: $i] :
      ( ( ( ~ ( in @ SV687 @ SV621 )
          | ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV687 ) )
        = $true )
      | ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3242]) ).

thf(3281,plain,
    ! [SV622: $i,SV644: $i,SV688: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK38_D @ SV688 @ SV644 @ SV622 ) @ SV622 )
              | ~ ~ ( in @ SV688 @ ( sK38_D @ SV688 @ SV644 @ SV622 ) ) )
          | ( in @ SV688 @ SV644 ) )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3243]) ).

thf(3282,plain,
    ! [SV622: $i,SV644: $i,SV689: $i] :
      ( ( ( ~ ( in @ SV689 @ SV644 )
          | ! [SY876: $i] :
              ( ~ ( in @ SY876 @ SV622 )
              | ( in @ SV689 @ SY876 ) ) )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3244]) ).

thf(3283,plain,
    ! [SV420: $i,SV597: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK11_SY272 @ SV597 @ SV420 ) @ ( sK10_C @ SV597 @ SV420 ) ) @ SV420 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK10_C @ SV597 @ SV420 ) @ ( sK11_SY272 @ SV597 @ SV420 ) ) @ SV597 )
        = $false )
      | ( ( SV597
          = ( relation_inverse @ SV420 ) )
        = $true )
      | ( ( relation @ SV597 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3245]) ).

thf(3284,plain,
    ! [SV420: $i,SV598: $i,SV690: $i,SV675: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV675 @ SV690 ) @ SV598 )
          | ( in @ ( ordered_pair @ SV690 @ SV675 ) @ SV420 ) )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3246]) ).

thf(3285,plain,
    ! [SV598: $i,SV420: $i,SV676: $i,SV691: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV691 @ SV676 ) @ SV420 )
          | ( in @ ( ordered_pair @ SV676 @ SV691 ) @ SV598 ) )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3247]) ).

thf(3286,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV423 )
        = $false )
      | ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
        = $false )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3248]) ).

thf(3287,plain,
    ! [SV423: $i,SV547: $i,SV589: $i] :
      ( ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV547 )
        = $false )
      | ( ( in @ ( sK24_D @ SV589 @ SV547 @ SV423 ) @ SV589 )
        = $false )
      | ( ( SV589
          = ( set_union2 @ SV423 @ SV547 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3249]) ).

thf(3288,plain,
    ! [SV548: $i,SV590: $i,SV423: $i,SV677: $i] :
      ( ( ( ~ ( in @ SV677 @ SV423 ) )
        = $true )
      | ( ( in @ SV677 @ SV590 )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3251]) ).

thf(3289,plain,
    ! [SV423: $i,SV590: $i,SV548: $i,SV678: $i] :
      ( ( ( ~ ( in @ SV678 @ SV548 ) )
        = $true )
      | ( ( in @ SV678 @ SV590 )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3252]) ).

thf(3290,plain,
    ! [SV424: $i,SV652: $i,SV662: $i] :
      ( ( ( subset @ SV662 @ SV652 )
        = $false )
      | ( ( in @ SV652 @ ( sK35_B @ SV424 ) )
        = $false )
      | ( ( in @ SV662 @ ( sK35_B @ SV424 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3253]) ).

thf(3291,plain,
    ! [SV667: $i,SV426: $i,SV632: $i] :
      ( ( ( in @ SV632 @ ( sK1_B @ SV426 ) )
        = $false )
      | ( ( in @ SV667 @ ( sK2_SY267 @ SV632 @ SV426 ) )
        = $true )
      | ( ( subset @ SV667 @ SV632 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3254]) ).

thf(3292,plain,
    ! [SV426: $i,SV653: $i,SV663: $i] :
      ( ( ( subset @ SV663 @ SV653 )
        = $false )
      | ( ( in @ SV653 @ ( sK1_B @ SV426 ) )
        = $false )
      | ( ( in @ SV663 @ ( sK1_B @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3255]) ).

thf(3293,plain,
    ! [SV618: $i,SV427: $i,SV679: $i,SV669: $i] :
      ( ( ( in @ ( ordered_pair @ SV669 @ SV679 ) @ SV427 )
        = $false )
      | ( ( in @ SV669 @ SV618 )
        = $true )
      | ( ( SV618
          = ( relation_dom @ SV427 ) )
        = $false )
      | ( ( relation @ SV427 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3257]) ).

thf(3294,plain,
    ! [SV567: $i,SV428: $i,SV592: $i,SV680: $i] :
      ( ( ( ~ ( in @ SV680 @ SV592 ) )
        = $true )
      | ( ( in @ SV680 @ SV428 )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3261]) ).

thf(3295,plain,
    ! [SV428: $i,SV567: $i,SV592: $i,SV681: $i] :
      ( ( ( ~ ( in @ SV681 @ SV592 ) )
        = $true )
      | ( ( ~ ( in @ SV681 @ SV567 ) )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3262]) ).

thf(3296,plain,
    ! [SV594: $i,SV429: $i,SV571: $i,SV665: $i] :
      ( ( ( in @ SV665 @ SV571 )
        = $false )
      | ( ( in @ SV665 @ SV429 )
        = $false )
      | ( ( in @ SV665 @ SV594 )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3264]) ).

thf(3297,plain,
    ! [SV571: $i,SV429: $i,SV594: $i,SV682: $i] :
      ( ( ( ~ ( in @ SV682 @ SV594 ) )
        = $true )
      | ( ( in @ SV682 @ SV429 )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3265]) ).

thf(3298,plain,
    ! [SV429: $i,SV571: $i,SV594: $i,SV683: $i] :
      ( ( ( ~ ( in @ SV683 @ SV594 ) )
        = $true )
      | ( ( in @ SV683 @ SV571 )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3266]) ).

thf(3299,plain,
    ! [SV620: $i,SV430: $i,SV672: $i,SV684: $i] :
      ( ( ( in @ ( ordered_pair @ SV684 @ SV672 ) @ SV430 )
        = $false )
      | ( ( in @ SV672 @ SV620 )
        = $true )
      | ( ( SV620
          = ( relation_rng @ SV430 ) )
        = $false )
      | ( ( relation @ SV430 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3268]) ).

thf(3300,plain,
    ! [SV573: $i,SV657: $i,SV526: $i,SV674: $i] :
      ( ( ( in @ SV674 @ SV526 )
        = $false )
      | ( ( in @ SV657 @ SV674 )
        = $false )
      | ( ( in @ SV657 @ SV573 )
        = $true )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3271]) ).

thf(3301,plain,
    ! [SV526: $i,SV573: $i,SV658: $i] :
      ( ( ( in @ SV658 @ ( sK16_D @ SV658 @ SV573 @ SV526 ) )
        = $true )
      | ( ( in @ SV658 @ SV573 )
        = $false )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3272]) ).

thf(3302,plain,
    ! [SV526: $i,SV573: $i,SV658: $i] :
      ( ( ( in @ ( sK16_D @ SV658 @ SV573 @ SV526 ) @ SV526 )
        = $true )
      | ( ( in @ SV658 @ SV573 )
        = $false )
      | ( ( SV573
          = ( union @ SV526 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3273]) ).

thf(3303,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ( sK25_D @ SV595 @ SV580 @ SV433 )
          = SV433 )
        = $false )
      | ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
        = $false )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3274]) ).

thf(3304,plain,
    ! [SV433: $i,SV580: $i,SV595: $i] :
      ( ( ( ( sK25_D @ SV595 @ SV580 @ SV433 )
          = SV580 )
        = $false )
      | ( ( in @ ( sK25_D @ SV595 @ SV580 @ SV433 ) @ SV595 )
        = $false )
      | ( ( SV595
          = ( unordered_pair @ SV433 @ SV580 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3275]) ).

thf(3305,plain,
    ! [SV581: $i,SV596: $i,SV433: $i,SV685: $i] :
      ( ( ( ( SV685 != SV433 ) )
        = $true )
      | ( ( in @ SV685 @ SV596 )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3277]) ).

thf(3306,plain,
    ! [SV433: $i,SV596: $i,SV581: $i,SV686: $i] :
      ( ( ( ( SV686 != SV581 ) )
        = $true )
      | ( ( in @ SV686 @ SV596 )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3278]) ).

thf(3307,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 ) )
        = $false )
      | ( ( ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3279]) ).

thf(3308,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3279]) ).

thf(3309,plain,
    ! [SV643: $i,SV621: $i,SV687: $i] :
      ( ( ( ~ ( in @ SV687 @ SV621 ) )
        = $true )
      | ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV687 )
        = $true )
      | ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3280]) ).

thf(3310,plain,
    ! [SV622: $i,SV644: $i,SV688: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK38_D @ SV688 @ SV644 @ SV622 ) @ SV622 )
              | ~ ~ ( in @ SV688 @ ( sK38_D @ SV688 @ SV644 @ SV622 ) ) ) )
        = $true )
      | ( ( in @ SV688 @ SV644 )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3281]) ).

thf(3311,plain,
    ! [SV622: $i,SV644: $i,SV689: $i] :
      ( ( ( ~ ( in @ SV689 @ SV644 ) )
        = $true )
      | ( ( ! [SY876: $i] :
              ( ~ ( in @ SY876 @ SV622 )
              | ( in @ SV689 @ SY876 ) ) )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3282]) ).

thf(3312,plain,
    ! [SV420: $i,SV598: $i,SV690: $i,SV675: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV675 @ SV690 ) @ SV598 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV690 @ SV675 ) @ SV420 )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3284]) ).

thf(3313,plain,
    ! [SV598: $i,SV420: $i,SV676: $i,SV691: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV691 @ SV676 ) @ SV420 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV676 @ SV691 ) @ SV598 )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3285]) ).

thf(3314,plain,
    ! [SV548: $i,SV590: $i,SV423: $i,SV677: $i] :
      ( ( ( in @ SV677 @ SV423 )
        = $false )
      | ( ( in @ SV677 @ SV590 )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3288]) ).

thf(3315,plain,
    ! [SV423: $i,SV590: $i,SV548: $i,SV678: $i] :
      ( ( ( in @ SV678 @ SV548 )
        = $false )
      | ( ( in @ SV678 @ SV590 )
        = $true )
      | ( ( SV590
          = ( set_union2 @ SV423 @ SV548 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3289]) ).

thf(3316,plain,
    ! [SV567: $i,SV428: $i,SV592: $i,SV680: $i] :
      ( ( ( in @ SV680 @ SV592 )
        = $false )
      | ( ( in @ SV680 @ SV428 )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3294]) ).

thf(3317,plain,
    ! [SV428: $i,SV567: $i,SV592: $i,SV681: $i] :
      ( ( ( in @ SV681 @ SV592 )
        = $false )
      | ( ( ~ ( in @ SV681 @ SV567 ) )
        = $true )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3295]) ).

thf(3318,plain,
    ! [SV571: $i,SV429: $i,SV594: $i,SV682: $i] :
      ( ( ( in @ SV682 @ SV594 )
        = $false )
      | ( ( in @ SV682 @ SV429 )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3297]) ).

thf(3319,plain,
    ! [SV429: $i,SV571: $i,SV594: $i,SV683: $i] :
      ( ( ( in @ SV683 @ SV594 )
        = $false )
      | ( ( in @ SV683 @ SV571 )
        = $true )
      | ( ( SV594
          = ( set_intersection2 @ SV429 @ SV571 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3298]) ).

thf(3320,plain,
    ! [SV581: $i,SV596: $i,SV433: $i,SV685: $i] :
      ( ( ( SV685 = SV433 )
        = $false )
      | ( ( in @ SV685 @ SV596 )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3305]) ).

thf(3321,plain,
    ! [SV433: $i,SV596: $i,SV581: $i,SV686: $i] :
      ( ( ( SV686 = SV581 )
        = $false )
      | ( ( in @ SV686 @ SV596 )
        = $true )
      | ( ( SV596
          = ( unordered_pair @ SV433 @ SV581 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3306]) ).

thf(3322,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 )
        = $true )
      | ( ( ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3307]) ).

thf(3323,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3308]) ).

thf(3324,plain,
    ! [SV643: $i,SV621: $i,SV687: $i] :
      ( ( ( in @ SV687 @ SV621 )
        = $false )
      | ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV687 )
        = $true )
      | ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3309]) ).

thf(3325,plain,
    ! [SV622: $i,SV644: $i,SV688: $i] :
      ( ( ( ~ ( in @ ( sK38_D @ SV688 @ SV644 @ SV622 ) @ SV622 )
          | ~ ~ ( in @ SV688 @ ( sK38_D @ SV688 @ SV644 @ SV622 ) ) )
        = $false )
      | ( ( in @ SV688 @ SV644 )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3310]) ).

thf(3326,plain,
    ! [SV622: $i,SV644: $i,SV689: $i] :
      ( ( ( in @ SV689 @ SV644 )
        = $false )
      | ( ( ! [SY876: $i] :
              ( ~ ( in @ SY876 @ SV622 )
              | ( in @ SV689 @ SY876 ) ) )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3311]) ).

thf(3327,plain,
    ! [SV420: $i,SV598: $i,SV690: $i,SV675: $i] :
      ( ( ( in @ ( ordered_pair @ SV675 @ SV690 ) @ SV598 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV690 @ SV675 ) @ SV420 )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3312]) ).

thf(3328,plain,
    ! [SV598: $i,SV420: $i,SV676: $i,SV691: $i] :
      ( ( ( in @ ( ordered_pair @ SV691 @ SV676 ) @ SV420 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV676 @ SV691 ) @ SV598 )
        = $true )
      | ( ( SV598
          = ( relation_inverse @ SV420 ) )
        = $false )
      | ( ( relation @ SV598 )
        = $false )
      | ( ( relation @ SV420 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3313]) ).

thf(3329,plain,
    ! [SV428: $i,SV592: $i,SV567: $i,SV681: $i] :
      ( ( ( in @ SV681 @ SV567 )
        = $false )
      | ( ( in @ SV681 @ SV592 )
        = $false )
      | ( ( SV592
          = ( set_difference @ SV428 @ SV567 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3317]) ).

thf(3330,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 )
        = $false )
      | ( ( in @ ( sK40_SY287 @ SV643 @ SV621 ) @ SV621 )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3322]) ).

thf(3331,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) )
        = $false )
      | ( ( ~ ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3323]) ).

thf(3332,plain,
    ! [SV622: $i,SV644: $i,SV688: $i] :
      ( ( ( ~ ( in @ ( sK38_D @ SV688 @ SV644 @ SV622 ) @ SV622 ) )
        = $false )
      | ( ( in @ SV688 @ SV644 )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3325]) ).

thf(3333,plain,
    ! [SV622: $i,SV644: $i,SV688: $i] :
      ( ( ( ~ ~ ( in @ SV688 @ ( sK38_D @ SV688 @ SV644 @ SV622 ) ) )
        = $false )
      | ( ( in @ SV688 @ SV644 )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3325]) ).

thf(3334,plain,
    ! [SV644: $i,SV689: $i,SV622: $i,SV692: $i] :
      ( ( ( ~ ( in @ SV692 @ SV622 )
          | ( in @ SV689 @ SV692 ) )
        = $true )
      | ( ( in @ SV689 @ SV644 )
        = $false )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3326]) ).

thf(3335,plain,
    ! [SV621: $i,SV643: $i] :
      ( ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ SV643 )
        = $false )
      | ( ( in @ ( sK39_C @ SV643 @ SV621 ) @ ( sK40_SY287 @ SV643 @ SV621 ) )
        = $false )
      | ( ( SV643
          = ( set_meet @ SV621 ) )
        = $true )
      | ( ( SV621 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3331]) ).

thf(3336,plain,
    ! [SV622: $i,SV644: $i,SV688: $i] :
      ( ( ( in @ ( sK38_D @ SV688 @ SV644 @ SV622 ) @ SV622 )
        = $true )
      | ( ( in @ SV688 @ SV644 )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3332]) ).

thf(3337,plain,
    ! [SV622: $i,SV644: $i,SV688: $i] :
      ( ( ( ~ ( in @ SV688 @ ( sK38_D @ SV688 @ SV644 @ SV622 ) ) )
        = $true )
      | ( ( in @ SV688 @ SV644 )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3333]) ).

thf(3338,plain,
    ! [SV644: $i,SV689: $i,SV622: $i,SV692: $i] :
      ( ( ( ~ ( in @ SV692 @ SV622 ) )
        = $true )
      | ( ( in @ SV689 @ SV692 )
        = $true )
      | ( ( in @ SV689 @ SV644 )
        = $false )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3334]) ).

thf(3339,plain,
    ! [SV622: $i,SV644: $i,SV688: $i] :
      ( ( ( in @ SV688 @ ( sK38_D @ SV688 @ SV644 @ SV622 ) )
        = $false )
      | ( ( in @ SV688 @ SV644 )
        = $true )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3337]) ).

thf(3340,plain,
    ! [SV644: $i,SV689: $i,SV622: $i,SV692: $i] :
      ( ( ( in @ SV692 @ SV622 )
        = $false )
      | ( ( in @ SV689 @ SV692 )
        = $true )
      | ( ( in @ SV689 @ SV644 )
        = $false )
      | ( ( SV644
          = ( set_meet @ SV622 ) )
        = $false )
      | ( ( SV622 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3338]) ).

thf(3341,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[1869,3340,3339,3336,3335,3330,3329,3328,3327,3324,3321,3320,3319,3318,3316,3315,3314,3304,3303,3302,3301,3300,3299,3296,3293,3292,3291,3290,3287,3286,3283,3276,3270,3269,3267,3263,3260,3259,3258,3256,3250,3226,3225,3219,3218,3204,3202,3201,3189,3188,3168,3167,3165,3151,3150,3149,3143,3133,3119,3117,3116,3113,3106,3069,3066,3065,3058,3057,3055,3054,3047,3046,3043,3033,3032,3013,3012,3004,3002,2997,2995,2993,2991,2990,2985,2984,2983,2982,2977,2963,2946,2945,2926,2925,2913,2912,2906,2905,2877,2875,2865,2864,2859,2853,2850,2845,2835,2834,2833,2832,2821,2820,2817,2816,2815,2808,2807,2802,2801,2797,2796,2781,2780,2764,2763,2757,2748,2747,2746,2743,2742,2740,2739,2721,2712,2711,2697,2658,2652,2649,2648,2643,2642,2638,2635,2582,2549,2546,2545,2542,2541,2540,2537,2532,2531,2525,2524,2523,2505,2504,2489,2442,2441,2439,2438,2433,2430,2427,2425,2423,2419,2415,2413,2409,2374,2360,2359,2349,2348,2320,2317,2314,2312,2311,2310,2291,2283,2280,2277,2195,2192,2188,2187,2180,2175,2168,2167,2166,2159,2146,2102,2094,2093,2091,2090,2073,2067,2037,2036,2035,2034,2030,1970,1879]) ).

thf(3342,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[3341,1865]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : SEU187+2 : TPTP v8.1.0. Released v3.3.0.
% 0.12/0.13  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.13/0.34  % Computer : n016.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Sun Jun 19 02:22:38 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.20/0.41  ....
% 0.20/0.47  
% 0.20/0.47   No.of.Axioms: 166
% 0.20/0.47  
% 0.20/0.47   Length.of.Defs: 0
% 0.20/0.47  
% 0.20/0.47   Contains.Choice.Funs: false
% 0.20/0.52  ..........
% 0.41/0.57  (rf:2,axioms:119,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:168,loop_count:0,foatp_calls:0,translation:fof_full)..................................................................................................................................................................................................................
% 2.33/2.57  
% 2.33/2.57  ********************************
% 2.33/2.57  *   All subproblems solved!    *
% 2.33/2.57  ********************************
% 2.33/2.57  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:2,axioms:119,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:3341,loop_count:0,foatp_calls:1,translation:fof_full)
% 6.32/6.51  
% 6.32/6.51  %**** Beginning of derivation protocol ****
% 6.32/6.51  % SZS output start CNFRefutation
% See solution above
% 6.32/6.52  
% 6.32/6.52  %**** End of derivation protocol ****
% 6.32/6.52  %**** no. of clauses in derivation: 3295 ****
% 6.32/6.52  %**** clause counter: 3341 ****
% 6.32/6.52  
% 6.32/6.52  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:2,axioms:119,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:3341,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------