TSTP Solution File: SEU177+2 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SEU177+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 : n012.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 12:07:39 EDT 2022

% Result   : Theorem 13.02s 13.20s
% Output   : CNFRefutation 16.03s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   26
%            Number of leaves      :  190
% Syntax   : Number of formulae    : 3467 (1724 unt;  68 typ;   0 def)
%            Number of atoms       : 24064 (8976 equ;   0 cnn)
%            Maximal formula atoms :   11 (   7 avg)
%            Number of connectives : 52535 (9379   ~;8549   |; 414   &;33959   @)
%                                         (  88 <=>; 146  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   16 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :  123 ( 123   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   71 (  68 usr;   9 con; 0-4 aty)
%            Number of variables   : 10517 (   0   ^10487   !;  30   ?;10517   :)

% 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_dom,type,
    relation_dom: $i > $i ).

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

thf(tp_sK10_B,type,
    sK10_B: $i > $i ).

thf(tp_sK11_SY302,type,
    sK11_SY302: $i > $i > $i ).

thf(tp_sK12_C,type,
    sK12_C: $i > $i > $i ).

thf(tp_sK13_A,type,
    sK13_A: $i ).

thf(tp_sK14_D,type,
    sK14_D: $i > $i > $i > $i ).

thf(tp_sK15_C,type,
    sK15_C: $i > $i > $i ).

thf(tp_sK16_SY308,type,
    sK16_SY308: $i > $i > $i ).

thf(tp_sK17_D,type,
    sK17_D: $i > $i > $i > $i ).

thf(tp_sK18_D,type,
    sK18_D: $i > $i > $i > $i ).

thf(tp_sK19_C,type,
    sK19_C: $i > $i > $i ).

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

thf(tp_sK20_SY310,type,
    sK20_SY310: $i > $i > $i ).

thf(tp_sK21_D,type,
    sK21_D: $i > $i > $i > $i ).

thf(tp_sK22_C,type,
    sK22_C: $i > $i > $i ).

thf(tp_sK23_SY312,type,
    sK23_SY312: $i > $i > $i ).

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

thf(tp_sK25_C,type,
    sK25_C: $i > $i > $i ).

thf(tp_sK26_E,type,
    sK26_E: $i > $i > $i > $i > $i ).

thf(tp_sK27_SY313,type,
    sK27_SY313: $i > $i > $i > $i > $i ).

thf(tp_sK28_D,type,
    sK28_D: $i > $i > $i > $i ).

thf(tp_sK29_SY316,type,
    sK29_SY316: $i > $i > $i > $i ).

thf(tp_sK2_SY293,type,
    sK2_SY293: $i ).

thf(tp_sK30_SY318,type,
    sK30_SY318: $i > $i > $i > $i ).

thf(tp_sK31_D,type,
    sK31_D: $i > $i > $i > $i ).

thf(tp_sK32_D,type,
    sK32_D: $i > $i > $i > $i ).

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

thf(tp_sK34_B,type,
    sK34_B: $i > $i ).

thf(tp_sK35_C,type,
    sK35_C: $i > $i > $i ).

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

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

thf(tp_sK38_SY319,type,
    sK38_SY319: $i > $i > $i ).

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

thf(tp_sK3_SY295,type,
    sK3_SY295: $i ).

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

thf(tp_sK41_C,type,
    sK41_C: $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_B,type,
    sK7_B: $i > $i ).

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

thf(tp_sK9_B,type,
    sK9_B: $i > $i ).

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

thf(17,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( element @ B @ ( powerset @ A ) )
        & ( element @ C @ ( powerset @ A ) ) )
     => ( ( subset_difference @ A @ B @ C )
        = ( set_difference @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',redefinition_k6_subset_1) ).

thf(18,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ( ( meet_of_subsets @ A @ B )
        = ( set_meet @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',redefinition_k6_setfam_1) ).

thf(19,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ( ( union_of_subsets @ A @ B )
        = ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',redefinition_k5_setfam_1) ).

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 ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_xboole_0) ).

thf(23,axiom,
    ! [A: $i] :
      ( ~ ( empty @ A )
     => ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ~ ( empty @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_subset_1) ).

thf(24,axiom,
    ? [A: $i] :
      ( ( empty @ A )
      & ( relation @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_relat_1) ).

thf(26,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ( ( complements_of_subsets @ A @ ( complements_of_subsets @ A @ B ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',involutiveness_k7_setfam_1) ).

thf(27,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ( ( subset_complement @ A @ ( subset_complement @ A @ B ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',involutiveness_k3_subset_1) ).

thf(28,axiom,
    ! [A: $i,B: $i] :
      ( ( set_intersection2 @ A @ A )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',idempotence_k3_xboole_0) ).

thf(29,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ A )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',idempotence_k2_xboole_0) ).

thf(30,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_xboole_0) ).

thf(31,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( unordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc3_subset_1) ).

thf(32,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_xboole_0) ).

thf(33,axiom,
    ! [A: $i] :
      ~ ( empty @ ( singleton @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc2_subset_1) ).

thf(34,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( ordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

thf(35,axiom,
    empty @ empty_set,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(36,axiom,
    ! [A: $i] :
      ~ ( empty @ ( powerset @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_subset_1) ).

thf(37,axiom,
    ! [A: $i] :
    ? [B: $i] : ( element @ B @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_m1_subset_1) ).

thf(39,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ( element @ ( complements_of_subsets @ A @ B ) @ ( powerset @ ( powerset @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k7_setfam_1) ).

thf(40,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( element @ B @ ( powerset @ A ) )
        & ( element @ C @ ( powerset @ A ) ) )
     => ( element @ ( subset_difference @ A @ B @ C ) @ ( powerset @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k6_subset_1) ).

thf(41,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ( element @ ( meet_of_subsets @ A @ B ) @ ( powerset @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k6_setfam_1) ).

thf(42,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ( element @ ( union_of_subsets @ A @ B ) @ ( powerset @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k5_setfam_1) ).

thf(47,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ( element @ ( subset_complement @ A @ B ) @ ( powerset @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_subset_1) ).

thf(51,axiom,
    ! [A: $i] : ( element @ ( cast_to_subset @ A ) @ ( powerset @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_subset_1) ).

thf(58,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(60,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(61,axiom,
    ! [A: $i,B: $i] :
      ( ( ordered_pair @ A @ B )
      = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_tarski) ).

thf(62,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ( ( subset_complement @ A @ B )
        = ( set_difference @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_subset_1) ).

thf(63,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(64,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(65,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(67,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(68,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(69,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(70,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( cartesian_product2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ? [E: $i,F: $i] :
              ( ( in @ E @ A )
              & ( in @ F @ B )
              & ( D
                = ( ordered_pair @ E @ F ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_zfmisc_1) ).

thf(71,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(72,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(73,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(74,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(75,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(76,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(77,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(78,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d10_xboole_0) ).

thf(79,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(80,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(81,axiom,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(83,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(84,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(85,axiom,
    ! [A: $i] :
      ( ( union @ ( powerset @ A ) )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t99_zfmisc_1) ).

thf(86,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t92_zfmisc_1) ).

thf(87,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(88,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(89,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_difference @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t83_xboole_1) ).

thf(90,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(91,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(92,axiom,
    ! [A: $i] :
      ( ( unordered_pair @ A @ A )
      = ( singleton @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t69_enumset1) ).

thf(93,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(94,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(95,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( subset @ A @ B )
        & ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(96,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( element @ C @ ( powerset @ A ) )
     => ~ ( ( in @ B @ ( subset_complement @ A @ C ) )
          & ( in @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t54_subset_1) ).

thf(97,axiom,
    ! [A: $i] :
      ( ( A != empty_set )
     => ! [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ! [C: $i] :
              ( ( element @ C @ A )
             => ( ~ ( in @ C @ B )
               => ( in @ C @ ( subset_complement @ A @ B ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t50_subset_1) ).

thf(98,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(99,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(102,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(103,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ~ ( ( B != empty_set )
          & ( ( complements_of_subsets @ A @ B )
            = empty_set ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t46_setfam_1) ).

thf(104,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(105,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ! [C: $i] :
          ( ( element @ C @ ( powerset @ A ) )
         => ( ( disjoint @ B @ C )
          <=> ( subset @ B @ ( subset_complement @ A @ C ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t43_subset_1) ).

thf(106,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(107,axiom,
    ! [A: $i] :
      ( ( subset @ A @ empty_set )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(108,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(109,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(110,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(111,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(112,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_zfmisc_1) ).

thf(113,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(114,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(115,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( ordered_pair @ A @ B )
        = ( ordered_pair @ C @ D ) )
     => ( ( A = C )
        & ( B = D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_zfmisc_1) ).

thf(116,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(117,axiom,
    ! [A: $i] : ( subset @ empty_set @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(118,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_intersection2 @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(119,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(120,axiom,
    ( ( powerset @ empty_set )
    = ( singleton @ empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_zfmisc_1) ).

thf(121,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(122,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(123,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(124,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(125,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_union2 @ A @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(126,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(127,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(128,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ~ ( ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ C @ D ) )
        & ( A != C )
        & ( A != D ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t10_zfmisc_1) ).

thf(129,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
    <=> ( ( in @ A @ C )
        & ( in @ B @ D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t106_zfmisc_1) ).

thf(130,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(131,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
    <=> ( ( in @ A @ C )
        & ( in @ B @ D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l55_zfmisc_1) ).

thf(132,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l50_zfmisc_1) ).

thf(133,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(134,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(135,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(136,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(137,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(138,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( in @ A @ B )
     => ( disjoint @ ( singleton @ A ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l28_zfmisc_1) ).

thf(139,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( disjoint @ ( singleton @ A ) @ B )
        & ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l25_zfmisc_1) ).

thf(140,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(141,axiom,
    ! [A: $i] :
      ( ( singleton @ A )
     != empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(142,conjecture,
    ! [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(143,negated_conjecture,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( ( in @ ( ordered_pair @ A @ B ) @ C )
           => ( ( in @ A @ ( relation_dom @ C ) )
              & ( in @ B @ ( relation_rng @ C ) ) ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[142]) ).

thf(144,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 ) ) ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[143]) ).

thf(145,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( empty @ A )
            & ( A != B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(146,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(147,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ~ ( ( in @ A @ B )
            & ( element @ B @ ( powerset @ C ) )
            & ( empty @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(148,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(149,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ ( powerset @ B ) )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(150,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(151,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(152,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(153,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
         => ( disjoint @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(154,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(155,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( element @ B @ ( powerset @ A ) )
            & ( element @ C @ ( powerset @ A ) ) )
         => ( ( subset_difference @ A @ B @ C )
            = ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(156,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( ( meet_of_subsets @ A @ B )
            = ( set_meet @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[18]) ).

thf(157,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( ( union_of_subsets @ A @ B )
            = ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[19]) ).

thf(158,plain,
    ( ( ? [A: $i] :
          ~ ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[20]) ).

thf(159,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[21]) ).

thf(160,plain,
    ( ( ? [A: $i] : ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[22]) ).

thf(161,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
         => ? [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
              & ~ ( empty @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[23]) ).

thf(162,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( ( complements_of_subsets @ A @ ( complements_of_subsets @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[26]) ).

thf(163,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( ( subset_complement @ A @ ( subset_complement @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[27]) ).

thf(164,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[28]) ).

thf(165,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[29]) ).

thf(166,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(167,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( unordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(168,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[32]) ).

thf(169,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[33]) ).

thf(170,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(171,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(172,plain,
    ( ( ! [A: $i] :
        ? [B: $i] : ( element @ B @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[37]) ).

thf(173,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( element @ ( complements_of_subsets @ A @ B ) @ ( powerset @ ( powerset @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(174,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( element @ B @ ( powerset @ A ) )
            & ( element @ C @ ( powerset @ A ) ) )
         => ( element @ ( subset_difference @ A @ B @ C ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[40]) ).

thf(175,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( element @ ( meet_of_subsets @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(176,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ( element @ ( union_of_subsets @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(177,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( element @ ( subset_complement @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(178,plain,
    ( ( ! [A: $i] : ( element @ ( cast_to_subset @ A ) @ ( powerset @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[51]) ).

thf(179,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[58]) ).

thf(180,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[60]) ).

thf(181,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( ( subset_complement @ A @ B )
            = ( set_difference @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(182,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[78]) ).

thf(183,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[79]) ).

thf(184,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(185,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[81]) ).

thf(186,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[84]) ).

thf(187,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[85]) ).

thf(188,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[87]) ).

thf(189,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)],[88]) ).

thf(190,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[89]) ).

thf(191,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[90]) ).

thf(192,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[91]) ).

thf(193,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[92]) ).

thf(194,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[94]) ).

thf(195,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[95]) ).

thf(196,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( element @ C @ ( powerset @ A ) )
         => ~ ( ( in @ B @ ( subset_complement @ A @ C ) )
              & ( in @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[96]) ).

thf(197,plain,
    ( ( ! [A: $i] :
          ( ( A != empty_set )
         => ! [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
             => ! [C: $i] :
                  ( ( element @ C @ A )
                 => ( ~ ( in @ C @ B )
                   => ( in @ C @ ( subset_complement @ A @ B ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[97]) ).

thf(198,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[99]) ).

thf(199,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ~ ( ( B != empty_set )
              & ( ( complements_of_subsets @ A @ B )
                = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[103]) ).

thf(200,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[104]) ).

thf(201,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ! [C: $i] :
              ( ( element @ C @ ( powerset @ A ) )
             => ( ( disjoint @ B @ C )
              <=> ( subset @ B @ ( subset_complement @ A @ C ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[105]) ).

thf(202,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[106]) ).

thf(203,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[107]) ).

thf(204,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[109]) ).

thf(205,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[110]) ).

thf(206,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[113]) ).

thf(207,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[114]) ).

thf(208,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)],[116]) ).

thf(209,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[117]) ).

thf(210,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[118]) ).

thf(211,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)],[119]) ).

thf(212,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[120]) ).

thf(213,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[121]) ).

thf(214,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)],[122]) ).

thf(215,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[123]) ).

thf(216,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)],[124]) ).

thf(217,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[125]) ).

thf(218,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)],[126]) ).

thf(219,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)],[127]) ).

thf(220,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ~ ( ( ( unordered_pair @ A @ B )
              = ( unordered_pair @ C @ D ) )
            & ( A != C )
            & ( A != D ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[128]) ).

thf(221,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[133]) ).

thf(222,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)],[134]) ).

thf(223,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[136]) ).

thf(224,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[141]) ).

thf(225,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(226,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(227,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(228,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(229,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ B )
         => ( ( empty @ B )
            | ( in @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(230,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(231,plain,
    ( ( ? [A: $i] :
          ( ( empty @ A )
          & ( relation @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[24]) ).

thf(232,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(233,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[61]) ).

thf(234,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)],[63]) ).

thf(235,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)],[64]) ).

thf(236,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)],[65]) ).

thf(237,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)],[67]) ).

thf(238,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)],[68]) ).

thf(239,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[69]) ).

thf(240,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( cartesian_product2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ? [E: $i,F: $i] :
                  ( ( in @ E @ A )
                  & ( in @ F @ B )
                  & ( D
                    = ( ordered_pair @ E @ F ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[70]) ).

thf(241,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)],[71]) ).

thf(242,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)],[72]) ).

thf(243,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)],[73]) ).

thf(244,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[74]) ).

thf(245,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(246,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(247,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)],[77]) ).

thf(248,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[83]) ).

thf(249,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[86]) ).

thf(250,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
            = A )
        <=> ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[93]) ).

thf(251,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)],[98]) ).

thf(252,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[102]) ).

thf(253,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)],[108]) ).

thf(254,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)],[111]) ).

thf(255,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[112]) ).

thf(256,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( ordered_pair @ A @ B )
            = ( ordered_pair @ C @ D ) )
         => ( ( A = C )
            & ( B = D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[115]) ).

thf(257,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[129]) ).

thf(258,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) )
         => ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[130]) ).

thf(259,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[131]) ).

thf(260,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[132]) ).

thf(261,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ! [C: $i] :
              ( ( in @ C @ B )
             => ( in @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[135]) ).

thf(262,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[137]) ).

thf(263,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[138]) ).

thf(264,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( disjoint @ ( singleton @ A ) @ B )
            & ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[139]) ).

thf(265,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[140]) ).

thf(266,plain,
    ( ( ! [SY293: $i,SY294: $i] :
          ( ( relation @ SY294 )
         => ( ( in @ ( ordered_pair @ sK1_A @ SY293 ) @ SY294 )
           => ( ( in @ sK1_A @ ( relation_dom @ SY294 ) )
              & ( in @ SY293 @ ( relation_rng @ SY294 ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[144]) ).

thf(267,plain,
    ( ( ! [SY295: $i] :
          ( ( relation @ SY295 )
         => ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY293 ) @ SY295 )
           => ( ( in @ sK1_A @ ( relation_dom @ SY295 ) )
              & ( in @ sK2_SY293 @ ( relation_rng @ SY295 ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[266]) ).

thf(268,plain,
    ( ( ( relation @ sK3_SY295 )
     => ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY293 ) @ sK3_SY295 )
       => ( ( in @ sK1_A @ ( relation_dom @ sK3_SY295 ) )
          & ( in @ sK2_SY293 @ ( relation_rng @ sK3_SY295 ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[267]) ).

thf(269,plain,
    ( ( relation @ sK3_SY295 )
    = $true ),
    inference(standard_cnf,[status(thm)],[268]) ).

thf(270,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY293 ) @ sK3_SY295 )
    = $true ),
    inference(standard_cnf,[status(thm)],[268]) ).

thf(271,plain,
    ( ( ( in @ sK1_A @ ( relation_dom @ sK3_SY295 ) )
      & ( in @ sK2_SY293 @ ( relation_rng @ sK3_SY295 ) ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[268]) ).

thf(272,plain,
    ( ( in @ sK1_A @ ( relation_dom @ sK3_SY295 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[271]) ).

thf(273,plain,
    ( ( in @ sK2_SY293 @ ( relation_rng @ sK3_SY295 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[271]) ).

thf(274,plain,
    ( ( ~ ( in @ sK1_A @ ( relation_dom @ sK3_SY295 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[272]) ).

thf(275,plain,
    ( ( ~ ( in @ sK2_SY293 @ ( relation_rng @ sK3_SY295 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[273]) ).

thf(276,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[145]) ).

thf(277,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[146]) ).

thf(278,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[147]) ).

thf(279,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)],[149]) ).

thf(280,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[153]) ).

thf(281,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[154]) ).

thf(282,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ~ ( element @ C @ ( powerset @ A ) )
          | ( ( subset_difference @ A @ B @ C )
            = ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[155]) ).

thf(283,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ( meet_of_subsets @ A @ B )
            = ( set_meet @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[156]) ).

thf(284,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ( union_of_subsets @ A @ B )
            = ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[157]) ).

thf(285,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[158]) ).

thf(286,plain,
    ( ( ! [A: $i] :
          ( ( element @ ( sK5_B @ A ) @ ( powerset @ A ) )
          & ( empty @ ( sK5_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[159]) ).

thf(287,plain,
    ( ( empty @ sK6_A )
    = $true ),
    inference(extcnf_combined,[status(esa)],[160]) ).

thf(288,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ( ( element @ ( sK7_B @ A ) @ ( powerset @ A ) )
            & ~ ( empty @ ( sK7_B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[161]) ).

thf(289,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ( complements_of_subsets @ A @ ( complements_of_subsets @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[162]) ).

thf(290,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( ( subset_complement @ A @ ( subset_complement @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[163]) ).

thf(291,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[164]) ).

thf(292,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[165]) ).

thf(293,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[166]) ).

thf(294,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[168]) ).

thf(295,plain,
    ( ( ! [A: $i] : ( element @ ( sK8_B @ A ) @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[172]) ).

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

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

thf(298,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( element @ ( meet_of_subsets @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[175]) ).

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

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

thf(301,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)],[179]) ).

thf(302,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)],[180]) ).

thf(303,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( ( subset_complement @ A @ B )
            = ( set_difference @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[181]) ).

thf(304,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)],[182]) ).

thf(305,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[186]) ).

thf(306,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[188]) ).

thf(307,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)],[189]) ).

thf(308,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)],[190]) ).

thf(309,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[192]) ).

thf(310,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[194]) ).

thf(311,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[195]) ).

thf(312,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ C @ ( powerset @ A ) )
          | ~ ( in @ B @ ( subset_complement @ A @ C ) )
          | ~ ( in @ B @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[196]) ).

thf(313,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ~ ( element @ B @ ( powerset @ A ) )
              | ! [C: $i] :
                  ( ~ ( element @ C @ A )
                  | ( in @ C @ B )
                  | ( in @ C @ ( subset_complement @ A @ B ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[197]) ).

thf(314,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( B = empty_set )
          | ( ( complements_of_subsets @ A @ B )
           != empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[199]) ).

thf(315,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[200]) ).

thf(316,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ A ) )
                | ~ ( disjoint @ B @ C )
                | ( subset @ B @ ( subset_complement @ A @ C ) ) )
            & ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ A ) )
                | ~ ( subset @ B @ ( subset_complement @ A @ C ) )
                | ( disjoint @ B @ C ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[201]) ).

thf(317,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[203]) ).

thf(318,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)],[204]) ).

thf(319,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)],[206]) ).

thf(320,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)],[208]) ).

thf(321,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[210]) ).

thf(322,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)],[211]) ).

thf(323,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[213]) ).

thf(324,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)],[214]) ).

thf(325,plain,
    ( ( ! [A: $i] :
          ( ! [SY296: $i] :
              ( ~ ( subset @ SY296 @ ( sK9_B @ A ) )
              | ( are_equipotent @ SY296 @ ( sK9_B @ A ) )
              | ( in @ SY296 @ ( sK9_B @ A ) ) )
          & ! [SY297: $i] :
              ( ~ ( in @ SY297 @ ( sK9_B @ A ) )
              | ( in @ ( powerset @ SY297 ) @ ( sK9_B @ A ) ) )
          & ! [SY298: $i,SY299: $i] :
              ( ~ ( in @ SY298 @ ( sK9_B @ A ) )
              | ~ ( subset @ SY299 @ SY298 )
              | ( in @ SY299 @ ( sK9_B @ A ) ) )
          & ( in @ A @ ( sK9_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[216]) ).

thf(326,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[217]) ).

thf(327,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)],[218]) ).

thf(328,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)],[219]) ).

thf(329,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( A = D )
          | ( A = C )
          | ( ( unordered_pair @ A @ B )
           != ( unordered_pair @ C @ D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[220]) ).

thf(330,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)],[221]) ).

thf(331,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)],[222]) ).

thf(332,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)],[223]) ).

thf(333,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[224]) ).

thf(334,plain,
    ( ( ! [A: $i] :
          ( ! [SY300: $i] :
              ( ~ ( subset @ SY300 @ ( sK10_B @ A ) )
              | ( are_equipotent @ SY300 @ ( sK10_B @ A ) )
              | ( in @ SY300 @ ( sK10_B @ A ) ) )
          & ! [SY301: $i] :
              ( ( ! [SY306: $i] :
                    ( ~ ( subset @ SY306 @ SY301 )
                    | ( in @ SY306 @ ( sK11_SY302 @ SY301 @ A ) ) )
                & ( in @ ( sK11_SY302 @ SY301 @ A ) @ ( sK10_B @ A ) ) )
              | ~ ( in @ SY301 @ ( sK10_B @ A ) ) )
          & ! [SY304: $i,SY305: $i] :
              ( ~ ( in @ SY304 @ ( sK10_B @ A ) )
              | ~ ( subset @ SY305 @ SY304 )
              | ( in @ SY305 @ ( sK10_B @ A ) ) )
          & ( in @ A @ ( sK10_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[225]) ).

thf(335,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[226]) ).

thf(336,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[227]) ).

thf(337,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK12_C @ B @ A ) @ A )
              | ~ ( in @ ( sK12_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK12_C @ B @ A ) @ A )
              | ( in @ ( sK12_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[228]) ).

thf(338,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[229]) ).

thf(339,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[230]) ).

thf(340,plain,
    ( ( ( empty @ sK13_A )
      & ( relation @ sK13_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[231]) ).

thf(341,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY307: $i] :
                        ~ ( in @ ( ordered_pair @ SY307 @ ( sK15_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK15_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK16_SY308 @ B @ A ) @ ( sK15_C @ B @ A ) ) @ A )
                    | ( in @ ( sK15_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 @ ( sK14_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[234]) ).

thf(342,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK17_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK17_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK17_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)],[235]) ).

thf(343,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY309: $i] :
                  ( ~ ( in @ ( sK19_C @ B @ A ) @ SY309 )
                  | ~ ( in @ SY309 @ A ) )
              | ~ ( in @ ( sK19_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK19_C @ B @ A ) @ ( sK20_SY310 @ B @ A ) )
                & ( in @ ( sK20_SY310 @ B @ A ) @ A ) )
              | ( in @ ( sK19_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 @ ( sK18_D @ C @ B @ A ) )
                  & ( in @ ( sK18_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[236]) ).

thf(344,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY311: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK22_C @ B @ A ) @ SY311 ) @ A )
                    | ~ ( in @ ( sK22_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK22_C @ B @ A ) @ ( sK23_SY312 @ B @ A ) ) @ A )
                    | ( in @ ( sK22_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 @ ( sK21_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[237]) ).

thf(345,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK24_D @ C @ B @ A ) @ A )
                  | ~ ( 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 ) @ C ) )
                & ( ( in @ ( sK24_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK24_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)],[238]) ).

thf(346,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK25_C @ B @ A ) @ A )
            & ~ ( in @ ( sK25_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)],[239]) ).

thf(347,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY314: $i,SY315: $i] :
                      ( ~ ( in @ SY314 @ A )
                      | ~ ( in @ SY315 @ B )
                      | ( ( sK28_D @ C @ B @ A )
                       != ( ordered_pair @ SY314 @ SY315 ) ) )
                  | ~ ( in @ ( sK28_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK29_SY316 @ C @ B @ A ) @ A )
                    & ( in @ ( sK30_SY318 @ C @ B @ A ) @ B )
                    & ( ( sK28_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK29_SY316 @ C @ B @ A ) @ ( sK30_SY318 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK28_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK26_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK27_SY313 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK26_E @ D @ C @ B @ A ) @ ( sK27_SY313 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[240]) ).

thf(348,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK31_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK31_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK31_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK31_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK31_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK31_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK31_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)],[241]) ).

thf(349,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK32_D @ C @ B @ A ) @ C )
                  | ( ( sK32_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK32_D @ C @ B @ A ) @ C )
                  | ( ( sK32_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK32_D @ C @ B @ A ) @ C )
                  | ( ( sK32_D @ C @ B @ A )
                    = A )
                  | ( ( sK32_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)],[242]) ).

thf(350,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)],[243]) ).

thf(351,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK33_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK33_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK33_C @ B @ A ) @ B )
              | ( subset @ ( sK33_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)],[244]) ).

thf(352,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK34_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[245]) ).

thf(353,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK35_C @ B @ A )
               != A )
              | ~ ( in @ ( sK35_C @ B @ A ) @ B ) )
            & ( ( ( sK35_C @ B @ A )
                = A )
              | ( in @ ( sK35_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)],[246]) ).

thf(354,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK38_SY319 @ B @ A ) @ A )
                    & ~ ( in @ ( sK37_C @ B @ A ) @ ( sK38_SY319 @ B @ A ) ) )
                  | ~ ( in @ ( sK37_C @ B @ A ) @ B ) )
                & ( ! [SY320: $i] :
                      ( ~ ( in @ SY320 @ A )
                      | ( in @ ( sK37_C @ B @ A ) @ SY320 ) )
                  | ( in @ ( sK37_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK36_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK36_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)],[247]) ).

thf(355,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[248]) ).

thf(356,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[249]) ).

thf(357,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)],[250]) ).

thf(358,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK39_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)],[251]) ).

thf(359,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[252]) ).

thf(360,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK40_C @ B @ A ) @ A )
            & ( in @ ( sK40_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)],[253]) ).

thf(361,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ C )
              | ( subset @ ( unordered_pair @ A @ B ) @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ A @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[254]) ).

thf(362,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[255]) ).

thf(363,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ! [D: $i] :
                  ( ( ordered_pair @ A @ B )
                 != ( ordered_pair @ C @ D ) )
              | ( A = C ) )
          & ! [C: $i,D: $i] :
              ( ( ( ordered_pair @ A @ B )
               != ( ordered_pair @ C @ D ) )
              | ( B = D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[256]) ).

thf(364,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[257]) ).

thf(365,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK41_C @ B @ A ) @ A )
            & ~ ( in @ ( sK41_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[258]) ).

thf(366,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[259]) ).

thf(367,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[260]) ).

thf(368,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[261]) ).

thf(369,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)],[262]) ).

thf(370,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[263]) ).

thf(371,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[264]) ).

thf(372,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[265]) ).

thf(373,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[372]) ).

thf(374,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[371]) ).

thf(375,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[370]) ).

thf(376,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)],[369]) ).

thf(377,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[368]) ).

thf(378,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[367]) ).

thf(379,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[366]) ).

thf(380,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK41_C @ B @ A ) @ A )
            & ~ ( in @ ( sK41_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[365]) ).

thf(381,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[364]) ).

thf(382,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ! [D: $i] :
                  ( ( ordered_pair @ A @ B )
                 != ( ordered_pair @ C @ D ) )
              | ( A = C ) )
          & ! [C: $i,D: $i] :
              ( ( ( ordered_pair @ A @ B )
               != ( ordered_pair @ C @ D ) )
              | ( B = D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[363]) ).

thf(383,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[362]) ).

thf(384,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ C )
              | ( subset @ ( unordered_pair @ A @ B ) @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ A @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[361]) ).

thf(385,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK40_C @ B @ A ) @ A )
            & ( in @ ( sK40_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[360]) ).

thf(386,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[359]) ).

thf(387,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK39_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)],[358]) ).

thf(388,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)],[357]) ).

thf(389,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[356]) ).

thf(390,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[355]) ).

thf(391,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK38_SY319 @ B @ A ) @ A )
                    & ~ ( in @ ( sK37_C @ B @ A ) @ ( sK38_SY319 @ B @ A ) ) )
                  | ~ ( in @ ( sK37_C @ B @ A ) @ B ) )
                & ( ! [SY320: $i] :
                      ( ~ ( in @ SY320 @ A )
                      | ( in @ ( sK37_C @ B @ A ) @ SY320 ) )
                  | ( in @ ( sK37_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK36_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK36_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)],[354]) ).

thf(392,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK35_C @ B @ A )
               != A )
              | ~ ( in @ ( sK35_C @ B @ A ) @ B ) )
            & ( ( ( sK35_C @ B @ A )
                = A )
              | ( in @ ( sK35_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)],[353]) ).

thf(393,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK34_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[352]) ).

thf(394,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK33_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK33_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK33_C @ B @ A ) @ B )
              | ( subset @ ( sK33_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)],[351]) ).

thf(395,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)],[350]) ).

thf(396,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK32_D @ C @ B @ A ) @ C )
                  | ( ( sK32_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK32_D @ C @ B @ A ) @ C )
                  | ( ( sK32_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK32_D @ C @ B @ A ) @ C )
                  | ( ( sK32_D @ C @ B @ A )
                    = A )
                  | ( ( sK32_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)],[349]) ).

thf(397,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK31_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK31_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK31_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK31_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK31_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK31_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK31_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)],[348]) ).

thf(398,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY314: $i,SY315: $i] :
                      ( ~ ( in @ SY314 @ A )
                      | ~ ( in @ SY315 @ B )
                      | ( ( sK28_D @ C @ B @ A )
                       != ( ordered_pair @ SY314 @ SY315 ) ) )
                  | ~ ( in @ ( sK28_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK29_SY316 @ C @ B @ A ) @ A )
                    & ( in @ ( sK30_SY318 @ C @ B @ A ) @ B )
                    & ( ( sK28_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK29_SY316 @ C @ B @ A ) @ ( sK30_SY318 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK28_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK26_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK27_SY313 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK26_E @ D @ C @ B @ A ) @ ( sK27_SY313 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[347]) ).

thf(399,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK25_C @ B @ A ) @ A )
            & ~ ( in @ ( sK25_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)],[346]) ).

thf(400,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK24_D @ C @ B @ A ) @ A )
                  | ~ ( 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 ) @ C ) )
                & ( ( in @ ( sK24_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK24_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)],[345]) ).

thf(401,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY311: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK22_C @ B @ A ) @ SY311 ) @ A )
                    | ~ ( in @ ( sK22_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK22_C @ B @ A ) @ ( sK23_SY312 @ B @ A ) ) @ A )
                    | ( in @ ( sK22_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 @ ( sK21_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[344]) ).

thf(402,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY309: $i] :
                  ( ~ ( in @ ( sK19_C @ B @ A ) @ SY309 )
                  | ~ ( in @ SY309 @ A ) )
              | ~ ( in @ ( sK19_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK19_C @ B @ A ) @ ( sK20_SY310 @ B @ A ) )
                & ( in @ ( sK20_SY310 @ B @ A ) @ A ) )
              | ( in @ ( sK19_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 @ ( sK18_D @ C @ B @ A ) )
                  & ( in @ ( sK18_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[343]) ).

thf(403,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK17_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK17_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK17_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)],[342]) ).

thf(404,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY307: $i] :
                        ~ ( in @ ( ordered_pair @ SY307 @ ( sK15_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK15_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK16_SY308 @ B @ A ) @ ( sK15_C @ B @ A ) ) @ A )
                    | ( in @ ( sK15_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 @ ( sK14_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[341]) ).

thf(405,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[233]) ).

thf(406,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(407,plain,
    ( ( ( empty @ sK13_A )
      & ( relation @ sK13_A ) )
    = $true ),
    inference(copy,[status(thm)],[340]) ).

thf(408,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[339]) ).

thf(409,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[338]) ).

thf(410,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK12_C @ B @ A ) @ A )
              | ~ ( in @ ( sK12_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK12_C @ B @ A ) @ A )
              | ( in @ ( sK12_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[337]) ).

thf(411,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[336]) ).

thf(412,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[335]) ).

thf(413,plain,
    ( ( ! [A: $i] :
          ( ! [SY300: $i] :
              ( ~ ( subset @ SY300 @ ( sK10_B @ A ) )
              | ( are_equipotent @ SY300 @ ( sK10_B @ A ) )
              | ( in @ SY300 @ ( sK10_B @ A ) ) )
          & ! [SY301: $i] :
              ( ( ! [SY306: $i] :
                    ( ~ ( subset @ SY306 @ SY301 )
                    | ( in @ SY306 @ ( sK11_SY302 @ SY301 @ A ) ) )
                & ( in @ ( sK11_SY302 @ SY301 @ A ) @ ( sK10_B @ A ) ) )
              | ~ ( in @ SY301 @ ( sK10_B @ A ) ) )
          & ! [SY304: $i,SY305: $i] :
              ( ~ ( in @ SY304 @ ( sK10_B @ A ) )
              | ~ ( subset @ SY305 @ SY304 )
              | ( in @ SY305 @ ( sK10_B @ A ) ) )
          & ( in @ A @ ( sK10_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[334]) ).

thf(414,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[333]) ).

thf(415,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)],[332]) ).

thf(416,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)],[331]) ).

thf(417,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)],[330]) ).

thf(418,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( A = D )
          | ( A = C )
          | ( ( unordered_pair @ A @ B )
           != ( unordered_pair @ C @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[329]) ).

thf(419,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)],[328]) ).

thf(420,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)],[327]) ).

thf(421,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[326]) ).

thf(422,plain,
    ( ( ! [A: $i] :
          ( ! [SY296: $i] :
              ( ~ ( subset @ SY296 @ ( sK9_B @ A ) )
              | ( are_equipotent @ SY296 @ ( sK9_B @ A ) )
              | ( in @ SY296 @ ( sK9_B @ A ) ) )
          & ! [SY297: $i] :
              ( ~ ( in @ SY297 @ ( sK9_B @ A ) )
              | ( in @ ( powerset @ SY297 ) @ ( sK9_B @ A ) ) )
          & ! [SY298: $i,SY299: $i] :
              ( ~ ( in @ SY298 @ ( sK9_B @ A ) )
              | ~ ( subset @ SY299 @ SY298 )
              | ( in @ SY299 @ ( sK9_B @ A ) ) )
          & ( in @ A @ ( sK9_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[325]) ).

thf(423,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[215]) ).

thf(424,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[324]) ).

thf(425,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[323]) ).

thf(426,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[212]) ).

thf(427,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[322]) ).

thf(428,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[321]) ).

thf(429,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[209]) ).

thf(430,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[320]) ).

thf(431,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[207]) ).

thf(432,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)],[319]) ).

thf(433,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[205]) ).

thf(434,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)],[318]) ).

thf(435,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[317]) ).

thf(436,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[202]) ).

thf(437,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ A ) )
                | ~ ( disjoint @ B @ C )
                | ( subset @ B @ ( subset_complement @ A @ C ) ) )
            & ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ A ) )
                | ~ ( subset @ B @ ( subset_complement @ A @ C ) )
                | ( disjoint @ B @ C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[316]) ).

thf(438,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[315]) ).

thf(439,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( B = empty_set )
          | ( ( complements_of_subsets @ A @ B )
           != empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[314]) ).

thf(440,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[198]) ).

thf(441,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ~ ( element @ B @ ( powerset @ A ) )
              | ! [C: $i] :
                  ( ~ ( element @ C @ A )
                  | ( in @ C @ B )
                  | ( in @ C @ ( subset_complement @ A @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[313]) ).

thf(442,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ C @ ( powerset @ A ) )
          | ~ ( in @ B @ ( subset_complement @ A @ C ) )
          | ~ ( in @ B @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[312]) ).

thf(443,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[311]) ).

thf(444,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[310]) ).

thf(445,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[193]) ).

thf(446,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[309]) ).

thf(447,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[191]) ).

thf(448,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)],[308]) ).

thf(449,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[307]) ).

thf(450,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[306]) ).

thf(451,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[187]) ).

thf(452,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[305]) ).

thf(453,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[185]) ).

thf(454,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[184]) ).

thf(455,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[183]) ).

thf(456,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)],[304]) ).

thf(457,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( ( subset_complement @ A @ B )
            = ( set_difference @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[303]) ).

thf(458,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)],[302]) ).

thf(459,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)],[301]) ).

thf(460,plain,
    ( ( ! [A: $i] : ( element @ ( cast_to_subset @ A ) @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[178]) ).

thf(461,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( element @ ( subset_complement @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[300]) ).

thf(462,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( element @ ( union_of_subsets @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[299]) ).

thf(463,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( element @ ( meet_of_subsets @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[298]) ).

thf(464,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ~ ( element @ C @ ( powerset @ A ) )
          | ( element @ ( subset_difference @ A @ B @ C ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[297]) ).

thf(465,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( element @ ( complements_of_subsets @ A @ B ) @ ( powerset @ ( powerset @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[296]) ).

thf(466,plain,
    ( ( ! [A: $i] : ( element @ ( sK8_B @ A ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[295]) ).

thf(467,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[171]) ).

thf(468,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(469,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[169]) ).

thf(470,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[294]) ).

thf(471,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( unordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[167]) ).

thf(472,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[293]) ).

thf(473,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[292]) ).

thf(474,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[291]) ).

thf(475,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( ( subset_complement @ A @ ( subset_complement @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[290]) ).

thf(476,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ( complements_of_subsets @ A @ ( complements_of_subsets @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[289]) ).

thf(477,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ( ( element @ ( sK7_B @ A ) @ ( powerset @ A ) )
            & ~ ( empty @ ( sK7_B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[288]) ).

thf(478,plain,
    ( ( empty @ sK6_A )
    = $true ),
    inference(copy,[status(thm)],[287]) ).

thf(479,plain,
    ( ( ! [A: $i] :
          ( ( element @ ( sK5_B @ A ) @ ( powerset @ A ) )
          & ( empty @ ( sK5_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[286]) ).

thf(480,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[285]) ).

thf(481,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ( union_of_subsets @ A @ B )
            = ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[284]) ).

thf(482,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ( meet_of_subsets @ A @ B )
            = ( set_meet @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[283]) ).

thf(483,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ~ ( element @ C @ ( powerset @ A ) )
          | ( ( subset_difference @ A @ B @ C )
            = ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[282]) ).

thf(484,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[281]) ).

thf(485,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[280]) ).

thf(486,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[152]) ).

thf(487,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[151]) ).

thf(488,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[150]) ).

thf(489,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)],[279]) ).

thf(490,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[148]) ).

thf(491,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[278]) ).

thf(492,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[277]) ).

thf(493,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[276]) ).

thf(494,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY293 ) @ sK3_SY295 )
    = $true ),
    inference(copy,[status(thm)],[270]) ).

thf(495,plain,
    ( ( relation @ sK3_SY295 )
    = $true ),
    inference(copy,[status(thm)],[269]) ).

thf(496,plain,
    ( ( ~ ( in @ sK1_A @ ( relation_dom @ sK3_SY295 ) ) )
    = $true ),
    inference(copy,[status(thm)],[274]) ).

thf(497,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[410]) ).

thf(498,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)],[383]) ).

thf(499,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK22_C @ SX1 @ SX0 ) @ SX2 ) @ SX0 )
                            | ~ ( in @ ( sK22_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SX1 @ SX0 ) @ ( sK23_SY312 @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK22_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 @ ( sK21_D @ SX2 @ SX1 @ SX0 ) ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[401]) ).

thf(500,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK34_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[393]) ).

thf(501,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK32_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK32_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK32_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK32_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK32_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK32_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)],[396]) ).

thf(502,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK9_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK9_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK9_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( in @ SX1 @ ( sK9_B @ SX0 ) )
                        | ( in @ ( powerset @ SX1 ) @ ( sK9_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK9_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK9_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK9_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[422]) ).

thf(503,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ( element @ ( sK5_B @ SX0 ) @ ( powerset @ SX0 ) )
            | ~ ( empty @ ( sK5_B @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[479]) ).

thf(504,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)],[376]) ).

thf(505,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK31_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)],[397]) ).

thf(506,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)],[456]) ).

thf(507,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK33_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)],[394]) ).

thf(508,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[379]) ).

thf(509,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK10_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK10_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK10_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( ~ ! [SX2: $i] :
                                  ( ~ ( subset @ SX2 @ SX1 )
                                  | ( in @ SX2 @ ( sK11_SY302 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK11_SY302 @ SX1 @ SX0 ) @ ( sK10_B @ SX0 ) ) )
                        | ~ ( in @ SX1 @ ( sK10_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK10_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK10_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK10_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[413]) ).

thf(510,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ! [SX2: $i] :
                            ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX2 )
                            | ~ ( in @ SX2 @ SX0 ) )
                        | ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ ( sK20_SY310 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK20_SY310 @ SX1 @ SX0 ) @ SX0 ) )
                        | ( in @ ( sK19_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 @ ( sK18_D @ SX2 @ SX1 @ SX0 ) )
                              | ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[402]) ).

thf(511,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i] :
                  ( ! [SX3: $i] :
                      ( ( ordered_pair @ SX0 @ SX1 )
                     != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX0 = SX2 ) )
            | ~ ! [SX2: $i,SX3: $i] :
                  ( ( ( ordered_pair @ SX0 @ SX1 )
                   != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX1 = SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[382]) ).

thf(512,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)],[419]) ).

thf(513,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)],[448]) ).

thf(514,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)],[489]) ).

thf(515,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( 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 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK24_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)],[400]) ).

thf(516,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ~ ( ~ ( element @ ( sK7_B @ SX0 ) @ ( powerset @ SX0 ) )
              | ~ ~ ( empty @ ( sK7_B @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[477]) ).

thf(517,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK41_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK41_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[380]) ).

thf(518,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)],[384]) ).

thf(519,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)],[388]) ).

thf(520,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)],[415]) ).

thf(521,plain,
    ( ( ~ ( ~ ( empty @ sK13_A )
          | ~ ( relation @ sK13_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[407]) ).

thf(522,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK25_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)],[399]) ).

thf(523,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ! [SX3: $i,SX4: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX4 @ SX1 )
                              | ( ( sK28_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ SX3 @ SX4 ) ) )
                          | ~ ( in @ ( sK28_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ( in @ ( sK30_SY318 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                              | ( ( sK28_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ ( sK29_SY316 @ SX2 @ SX1 @ SX0 ) @ ( sK30_SY318 @ SX2 @ SX1 @ SX0 ) ) ) )
                          | ( in @ ( sK28_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) )
                  | ( SX2
                    = ( cartesian_product2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( cartesian_product2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ! [SX4: $i,SX5: $i] :
                                ( ~ ( in @ SX4 @ SX0 )
                                | ~ ( in @ SX5 @ SX1 )
                                | ( SX3
                                 != ( ordered_pair @ SX4 @ SX5 ) ) )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ( in @ ( sK27_SY313 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                                | ( SX3
                                 != ( ordered_pair @ ( sK26_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ ( sK27_SY313 @ SX3 @ SX2 @ SX1 @ SX0 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[398]) ).

thf(524,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK39_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)],[387]) ).

thf(525,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)],[417]) ).

thf(526,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)],[458]) ).

thf(527,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)],[432]) ).

thf(528,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)],[395]) ).

thf(529,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ SX2 @ ( sK15_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ~ ( in @ ( sK15_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SX1 @ SX0 ) @ ( sK15_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK15_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 @ ( sK14_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[404]) ).

thf(530,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[381]) ).

thf(531,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)],[434]) ).

thf(532,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                                  | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                              | ~ ( ! [SX2: $i] :
                                      ( ~ ( in @ SX2 @ SX0 )
                                      | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                                  | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ~ ( ~ ! [SX2: $i] :
                                    ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                        | ~ ~ ( in @ SX2 @ ( sK36_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)],[391]) ).

thf(533,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK35_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK35_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK35_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)],[392]) ).

thf(534,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK17_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)],[403]) ).

thf(535,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ~ ( element @ SX2 @ ( powerset @ SX0 ) )
                    | ~ ( disjoint @ SX1 @ SX2 )
                    | ( subset @ SX1 @ ( subset_complement @ SX0 @ SX2 ) ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( element @ SX2 @ ( powerset @ SX0 ) )
                    | ~ ( subset @ SX1 @ ( subset_complement @ SX0 @ SX2 ) )
                    | ( disjoint @ SX1 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[437]) ).

thf(536,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK40_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)],[385]) ).

thf(537,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)],[459]) ).

thf(538,plain,
    ! [SV1: $i] :
      ( ( ! [SY321: $i] :
            ( ~ ( in @ SV1 @ SY321 )
            | ( ( set_union2 @ ( singleton @ SV1 ) @ SY321 )
              = SY321 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[373]) ).

thf(539,plain,
    ! [SV2: $i] :
      ( ( ! [SY322: $i] :
            ( ~ ( disjoint @ ( singleton @ SV2 ) @ SY322 )
            | ~ ( in @ SV2 @ SY322 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[374]) ).

thf(540,plain,
    ! [SV3: $i] :
      ( ( ! [SY323: $i] :
            ( ( in @ SV3 @ SY323 )
            | ( disjoint @ ( singleton @ SV3 ) @ SY323 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[375]) ).

thf(541,plain,
    ! [SV4: $i] :
      ( ( ! [SY324: $i] :
            ( ~ ( element @ SY324 @ ( powerset @ SV4 ) )
            | ! [SY325: $i] :
                ( ~ ( in @ SY325 @ SY324 )
                | ( in @ SY325 @ SV4 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[377]) ).

thf(542,plain,
    ! [SV5: $i] :
      ( ( ! [SY326: $i] :
            ( ~ ( in @ SV5 @ SY326 )
            | ( subset @ SV5 @ ( union @ SY326 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[378]) ).

thf(543,plain,
    ! [SV6: $i] :
      ( ( ! [SY327: $i] :
            ( ~ ( in @ SV6 @ SY327 )
            | ( ( set_union2 @ ( singleton @ SV6 ) @ SY327 )
              = SY327 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[386]) ).

thf(544,plain,
    ! [SV7: $i] :
      ( ( ! [SY328: $i] :
            ( ~ ( in @ SV7 @ SY328 )
            | ( subset @ SV7 @ ( union @ SY328 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[389]) ).

thf(545,plain,
    ! [SV8: $i] :
      ( ( ! [SY329: $i] :
            ( ~ ( in @ SV8 @ SY329 )
            | ~ ( in @ SY329 @ SV8 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[390]) ).

thf(546,plain,
    ! [SV9: $i] :
      ( ( ! [SY330: $i] :
            ( ( ordered_pair @ SV9 @ SY330 )
            = ( unordered_pair @ ( unordered_pair @ SV9 @ SY330 ) @ ( singleton @ SV9 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[405]) ).

thf(547,plain,
    ! [SV10: $i] :
      ( ( ! [SY331: $i] :
            ~ ( empty @ ( ordered_pair @ SV10 @ SY331 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[406]) ).

thf(548,plain,
    ! [SV11: $i] :
      ( ( ! [SY332: $i] :
            ( ~ ( in @ SV11 @ SY332 )
            | ( element @ SV11 @ SY332 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[408]) ).

thf(549,plain,
    ! [SV12: $i] :
      ( ( ! [SY333: $i] :
            ( ~ ( element @ SV12 @ SY333 )
            | ( empty @ SY333 )
            | ( in @ SV12 @ SY333 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[409]) ).

thf(550,plain,
    ! [SV13: $i] :
      ( ( ! [SY334: $i,SY335: $i] :
            ( ~ ( element @ SY334 @ ( powerset @ SY335 ) )
            | ~ ( in @ SV13 @ SY334 )
            | ( element @ SV13 @ SY335 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[411]) ).

thf(551,plain,
    ! [SV14: $i] :
      ( ( ! [SY336: $i] :
            ( ~ ( empty @ SY336 )
            | ~ ( in @ SV14 @ SY336 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[412]) ).

thf(552,plain,
    ! [SV15: $i] :
      ( ( ( ( singleton @ SV15 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[414]) ).

thf(553,plain,
    ! [SV16: $i] :
      ( ( ! [SY337: $i] :
            ( ~ ( subset @ SV16 @ SY337 )
            | ! [SY338: $i] :
                ( ( in @ SY338 @ SV16 )
                | ( subset @ SV16 @ ( set_difference @ SY337 @ ( singleton @ SY338 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[416]) ).

thf(554,plain,
    ! [SV17: $i] :
      ( ( ! [SY339: $i,SY340: $i,SY341: $i] :
            ( ( SV17 = SY341 )
            | ( SV17 = SY340 )
            | ( ( unordered_pair @ SV17 @ SY339 )
             != ( unordered_pair @ SY340 @ SY341 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[418]) ).

thf(555,plain,
    ! [SV18: $i] :
      ( ( ! [SY342: $i,SY343: $i,SY344: $i] :
            ( ~ ( subset @ SV18 @ SY342 )
            | ~ ( subset @ SY343 @ SY344 )
            | ( subset @ ( cartesian_product2 @ SV18 @ SY343 ) @ ( cartesian_product2 @ SY342 @ SY344 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[420]) ).

thf(556,plain,
    ! [SV19: $i] :
      ( ( ! [SY345: $i] :
            ( ~ ( subset @ SV19 @ SY345 )
            | ( ( set_union2 @ SV19 @ SY345 )
              = SY345 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[421]) ).

thf(557,plain,
    ! [SV20: $i] :
      ( ( ! [SY346: $i] : ( subset @ ( set_intersection2 @ SV20 @ SY346 ) @ SV20 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[423]) ).

thf(558,plain,
    ! [SV21: $i] :
      ( ( ! [SY347: $i,SY348: $i] :
            ( ~ ( subset @ SV21 @ SY347 )
            | ~ ( subset @ SV21 @ SY348 )
            | ( subset @ SV21 @ ( set_intersection2 @ SY347 @ SY348 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[424]) ).

thf(559,plain,
    ! [SV22: $i] :
      ( ( ! [SY349: $i,SY350: $i] :
            ( ~ ( subset @ SV22 @ SY349 )
            | ~ ( subset @ SY349 @ SY350 )
            | ( subset @ SV22 @ SY350 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[425]) ).

thf(560,plain,
    ! [SV23: $i] :
      ( ( ! [SY351: $i] :
            ( ~ ( subset @ SV23 @ SY351 )
            | ! [SY352: $i] : ( subset @ ( set_intersection2 @ SV23 @ SY352 ) @ ( set_intersection2 @ SY351 @ SY352 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[427]) ).

thf(561,plain,
    ! [SV24: $i] :
      ( ( ! [SY353: $i] :
            ( ~ ( subset @ SV24 @ SY353 )
            | ( ( set_intersection2 @ SV24 @ SY353 )
              = SV24 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[428]) ).

thf(562,plain,
    ! [SV25: $i] :
      ( ( subset @ empty_set @ SV25 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[429]) ).

thf(563,plain,
    ! [SV26: $i] :
      ( ( ! [SY354: $i] :
            ( ~ ( subset @ SV26 @ SY354 )
            | ! [SY355: $i] : ( subset @ ( set_difference @ SV26 @ SY355 ) @ ( set_difference @ SY354 @ SY355 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[430]) ).

thf(564,plain,
    ! [SV27: $i] :
      ( ( ! [SY356: $i] : ( subset @ ( set_difference @ SV27 @ SY356 ) @ SV27 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[431]) ).

thf(565,plain,
    ! [SV28: $i] :
      ( ( ! [SY357: $i] :
            ( ( set_union2 @ SV28 @ ( set_difference @ SY357 @ SV28 ) )
            = ( set_union2 @ SV28 @ SY357 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[433]) ).

thf(566,plain,
    ! [SV29: $i] :
      ( ( ~ ( subset @ SV29 @ empty_set )
        | ( SV29 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[435]) ).

thf(567,plain,
    ! [SV30: $i] :
      ( ( ! [SY358: $i] :
            ( ( set_difference @ ( set_union2 @ SV30 @ SY358 ) @ SY358 )
            = ( set_difference @ SV30 @ SY358 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[436]) ).

thf(568,plain,
    ! [SV31: $i] :
      ( ( ! [SY359: $i] :
            ( ~ ( subset @ SV31 @ SY359 )
            | ( SY359
              = ( set_union2 @ SV31 @ ( set_difference @ SY359 @ SV31 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[438]) ).

thf(569,plain,
    ! [SV32: $i] :
      ( ( ! [SY360: $i] :
            ( ~ ( element @ SY360 @ ( powerset @ ( powerset @ SV32 ) ) )
            | ( SY360 = empty_set )
            | ( ( complements_of_subsets @ SV32 @ SY360 )
             != empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[439]) ).

thf(570,plain,
    ! [SV33: $i] :
      ( ( ! [SY361: $i] :
            ( ( set_difference @ SV33 @ ( set_difference @ SV33 @ SY361 ) )
            = ( set_intersection2 @ SV33 @ SY361 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[440]) ).

thf(571,plain,
    ! [SV34: $i] :
      ( ( ( SV34 = empty_set )
        | ! [SY362: $i] :
            ( ~ ( element @ SY362 @ ( powerset @ SV34 ) )
            | ! [SY363: $i] :
                ( ~ ( element @ SY363 @ SV34 )
                | ( in @ SY363 @ SY362 )
                | ( in @ SY363 @ ( subset_complement @ SV34 @ SY362 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[441]) ).

thf(572,plain,
    ! [SV35: $i] :
      ( ( ! [SY364: $i,SY365: $i] :
            ( ~ ( element @ SY365 @ ( powerset @ SV35 ) )
            | ~ ( in @ SY364 @ ( subset_complement @ SV35 @ SY365 ) )
            | ~ ( in @ SY364 @ SY365 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[442]) ).

thf(573,plain,
    ! [SV36: $i] :
      ( ( ! [SY366: $i] :
            ( ~ ( proper_subset @ SY366 @ SV36 )
            | ~ ( subset @ SV36 @ SY366 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[443]) ).

thf(574,plain,
    ! [SV37: $i] :
      ( ( ! [SY367: $i,SY368: $i] :
            ( ~ ( disjoint @ SY367 @ SY368 )
            | ~ ( subset @ SV37 @ SY367 )
            | ( disjoint @ SV37 @ SY368 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[444]) ).

thf(575,plain,
    ! [SV38: $i] :
      ( ( ( unordered_pair @ SV38 @ SV38 )
        = ( singleton @ SV38 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[445]) ).

thf(576,plain,
    ! [SV39: $i] :
      ( ( ! [SY369: $i] :
            ( ~ ( subset @ ( singleton @ SV39 ) @ ( singleton @ SY369 ) )
            | ( SV39 = SY369 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[446]) ).

thf(577,plain,
    ! [SV40: $i] :
      ( ( ! [SY370: $i] : ( subset @ SV40 @ ( set_union2 @ SV40 @ SY370 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[447]) ).

thf(578,plain,
    ! [SV41: $i] :
      ( ( ! [SY371: $i,SY372: $i] :
            ( ~ ( subset @ SV41 @ SY371 )
            | ~ ( subset @ SY372 @ SY371 )
            | ( subset @ ( set_union2 @ SV41 @ SY372 ) @ SY371 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[449]) ).

thf(579,plain,
    ! [SV42: $i] :
      ( ( ! [SY373: $i] :
            ( ! [SY374: $i] :
                ( ( singleton @ SV42 )
               != ( unordered_pair @ SY373 @ SY374 ) )
            | ( SV42 = SY373 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[450]) ).

thf(580,plain,
    ! [SV43: $i] :
      ( ( ( union @ ( powerset @ SV43 ) )
        = SV43 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[451]) ).

thf(581,plain,
    ! [SV44: $i] :
      ( ( ! [SY375: $i,SY376: $i] :
            ( ( ( singleton @ SV44 )
             != ( unordered_pair @ SY375 @ SY376 ) )
            | ( SY375 = SY376 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[452]) ).

thf(582,plain,
    ! [SV45: $i] :
      ( ( ! [SY377: $i] :
            ( ( unordered_pair @ SV45 @ SY377 )
            = ( unordered_pair @ SY377 @ SV45 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[453]) ).

thf(583,plain,
    ! [SV46: $i] :
      ( ( ! [SY378: $i] :
            ( ( set_union2 @ SV46 @ SY378 )
            = ( set_union2 @ SY378 @ SV46 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[454]) ).

thf(584,plain,
    ! [SV47: $i] :
      ( ( ! [SY379: $i] :
            ( ( set_intersection2 @ SV47 @ SY379 )
            = ( set_intersection2 @ SY379 @ SV47 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[455]) ).

thf(585,plain,
    ! [SV48: $i] :
      ( ( ! [SY380: $i] :
            ( ~ ( element @ SY380 @ ( powerset @ SV48 ) )
            | ( ( subset_complement @ SV48 @ SY380 )
              = ( set_difference @ SV48 @ SY380 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[457]) ).

thf(586,plain,
    ! [SV49: $i] :
      ( ( element @ ( cast_to_subset @ SV49 ) @ ( powerset @ SV49 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[460]) ).

thf(587,plain,
    ! [SV50: $i] :
      ( ( ! [SY381: $i] :
            ( ~ ( element @ SY381 @ ( powerset @ SV50 ) )
            | ( element @ ( subset_complement @ SV50 @ SY381 ) @ ( powerset @ SV50 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[461]) ).

thf(588,plain,
    ! [SV51: $i] :
      ( ( ! [SY382: $i] :
            ( ~ ( element @ SY382 @ ( powerset @ ( powerset @ SV51 ) ) )
            | ( element @ ( union_of_subsets @ SV51 @ SY382 ) @ ( powerset @ SV51 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[462]) ).

thf(589,plain,
    ! [SV52: $i] :
      ( ( ! [SY383: $i] :
            ( ~ ( element @ SY383 @ ( powerset @ ( powerset @ SV52 ) ) )
            | ( element @ ( meet_of_subsets @ SV52 @ SY383 ) @ ( powerset @ SV52 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[463]) ).

thf(590,plain,
    ! [SV53: $i] :
      ( ( ! [SY384: $i,SY385: $i] :
            ( ~ ( element @ SY384 @ ( powerset @ SV53 ) )
            | ~ ( element @ SY385 @ ( powerset @ SV53 ) )
            | ( element @ ( subset_difference @ SV53 @ SY384 @ SY385 ) @ ( powerset @ SV53 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[464]) ).

thf(591,plain,
    ! [SV54: $i] :
      ( ( ! [SY386: $i] :
            ( ~ ( element @ SY386 @ ( powerset @ ( powerset @ SV54 ) ) )
            | ( element @ ( complements_of_subsets @ SV54 @ SY386 ) @ ( powerset @ ( powerset @ SV54 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[465]) ).

thf(592,plain,
    ! [SV55: $i] :
      ( ( element @ ( sK8_B @ SV55 ) @ SV55 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[466]) ).

thf(593,plain,
    ! [SV56: $i] :
      ( ( ~ ( empty @ ( powerset @ SV56 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[467]) ).

thf(594,plain,
    ! [SV57: $i] :
      ( ( ~ ( empty @ ( singleton @ SV57 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[469]) ).

thf(595,plain,
    ! [SV58: $i] :
      ( ( ( empty @ SV58 )
        | ! [SY387: $i] :
            ~ ( empty @ ( set_union2 @ SV58 @ SY387 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[470]) ).

thf(596,plain,
    ! [SV59: $i] :
      ( ( ! [SY388: $i] :
            ~ ( empty @ ( unordered_pair @ SV59 @ SY388 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[471]) ).

thf(597,plain,
    ! [SV60: $i] :
      ( ( ( empty @ SV60 )
        | ! [SY389: $i] :
            ~ ( empty @ ( set_union2 @ SY389 @ SV60 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[472]) ).

thf(598,plain,
    ! [SV61: $i] :
      ( ( ( set_union2 @ SV61 @ SV61 )
        = SV61 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[473]) ).

thf(599,plain,
    ! [SV62: $i] :
      ( ( ( set_intersection2 @ SV62 @ SV62 )
        = SV62 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[474]) ).

thf(600,plain,
    ! [SV63: $i] :
      ( ( ! [SY390: $i] :
            ( ~ ( element @ SY390 @ ( powerset @ SV63 ) )
            | ( ( subset_complement @ SV63 @ ( subset_complement @ SV63 @ SY390 ) )
              = SY390 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[475]) ).

thf(601,plain,
    ! [SV64: $i] :
      ( ( ! [SY391: $i] :
            ( ~ ( element @ SY391 @ ( powerset @ ( powerset @ SV64 ) ) )
            | ( ( complements_of_subsets @ SV64 @ ( complements_of_subsets @ SV64 @ SY391 ) )
              = SY391 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[476]) ).

thf(602,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[480]) ).

thf(603,plain,
    ! [SV65: $i] :
      ( ( ! [SY392: $i] :
            ( ~ ( element @ SY392 @ ( powerset @ ( powerset @ SV65 ) ) )
            | ( ( union_of_subsets @ SV65 @ SY392 )
              = ( union @ SY392 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[481]) ).

thf(604,plain,
    ! [SV66: $i] :
      ( ( ! [SY393: $i] :
            ( ~ ( element @ SY393 @ ( powerset @ ( powerset @ SV66 ) ) )
            | ( ( meet_of_subsets @ SV66 @ SY393 )
              = ( set_meet @ SY393 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[482]) ).

thf(605,plain,
    ! [SV67: $i] :
      ( ( ! [SY394: $i,SY395: $i] :
            ( ~ ( element @ SY394 @ ( powerset @ SV67 ) )
            | ~ ( element @ SY395 @ ( powerset @ SV67 ) )
            | ( ( subset_difference @ SV67 @ SY394 @ SY395 )
              = ( set_difference @ SY394 @ SY395 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[483]) ).

thf(606,plain,
    ! [SV68: $i] :
      ( ( subset @ SV68 @ SV68 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[484]) ).

thf(607,plain,
    ! [SV69: $i] :
      ( ( ! [SY396: $i] :
            ( ~ ( disjoint @ SV69 @ SY396 )
            | ( disjoint @ SY396 @ SV69 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[485]) ).

thf(608,plain,
    ! [SV70: $i] :
      ( ( ( set_union2 @ SV70 @ empty_set )
        = SV70 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[486]) ).

thf(609,plain,
    ! [SV71: $i] :
      ( ( ( set_intersection2 @ SV71 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[487]) ).

thf(610,plain,
    ! [SV72: $i] :
      ( ( ( set_difference @ SV72 @ empty_set )
        = SV72 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[488]) ).

thf(611,plain,
    ! [SV73: $i] :
      ( ( ( set_difference @ empty_set @ SV73 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[490]) ).

thf(612,plain,
    ! [SV74: $i] :
      ( ( ! [SY397: $i,SY398: $i] :
            ( ~ ( element @ SY397 @ ( powerset @ SY398 ) )
            | ~ ( in @ SV74 @ SY397 )
            | ~ ( empty @ SY398 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[491]) ).

thf(613,plain,
    ! [SV75: $i] :
      ( ( ~ ( empty @ SV75 )
        | ( SV75 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[492]) ).

thf(614,plain,
    ! [SV76: $i] :
      ( ( ! [SY399: $i] :
            ( ( SV76 = SY399 )
            | ~ ( empty @ SV76 )
            | ~ ( empty @ SY399 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[493]) ).

thf(615,plain,
    ( ( in @ sK1_A @ ( relation_dom @ sK3_SY295 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[496]) ).

thf(616,plain,
    ! [SV77: $i] :
      ( ( ! [SY400: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_C @ SY400 @ SV77 ) @ SV77 )
                    | ~ ( in @ ( sK12_C @ SY400 @ SV77 ) @ SY400 ) )
                | ~ ( ( in @ ( sK12_C @ SY400 @ SV77 ) @ SV77 )
                    | ( in @ ( sK12_C @ SY400 @ SV77 ) @ SY400 ) ) )
            | ( SV77 = SY400 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[497]) ).

thf(617,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)],[498]) ).

thf(618,plain,
    ! [SV78: $i] :
      ( ( ~ ( relation @ SV78 )
        | ~ ( ~ ! [SY401: $i] :
                  ( ~ ( ~ ( ! [SY402: $i] :
                              ~ ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ SY402 ) @ SV78 )
                          | ~ ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ ( sK23_SY312 @ SY401 @ SV78 ) ) @ SV78 )
                          | ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) ) )
                  | ( SY401
                    = ( relation_dom @ SV78 ) ) )
            | ~ ! [SY403: $i] :
                  ( ( SY403
                   != ( relation_dom @ SV78 ) )
                  | ~ ( ~ ! [SY404: $i] :
                            ( ! [SY405: $i] :
                                ~ ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SV78 )
                            | ( in @ SY404 @ SY403 ) )
                      | ~ ! [SY406: $i] :
                            ( ~ ( in @ SY406 @ SY403 )
                            | ( in @ ( ordered_pair @ SY406 @ ( sK21_D @ SY406 @ SY403 @ SV78 ) ) @ SV78 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[499]) ).

thf(619,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK34_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[500]) ).

thf(620,plain,
    ! [SV79: $i] :
      ( ( ~ ( ~ ! [SY407: $i,SY408: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                                | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                                 != SV79 ) )
                            | ~ ( ~ ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                                | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                                 != SY407 ) ) )
                      | ~ ( ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                          | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                            = SV79 )
                          | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                            = SY407 ) ) )
                  | ( SY408
                    = ( unordered_pair @ SV79 @ SY407 ) ) )
            | ~ ! [SY409: $i,SY410: $i] :
                  ( ( SY410
                   != ( unordered_pair @ SV79 @ SY409 ) )
                  | ~ ( ~ ! [SY411: $i] :
                            ( ~ ( in @ SY411 @ SY410 )
                            | ( SY411 = SV79 )
                            | ( SY411 = SY409 ) )
                      | ~ ~ ( ~ ! [SY412: $i] :
                                  ( ( SY412 != SV79 )
                                  | ( in @ SY412 @ SY410 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY409 )
                                  | ( in @ SX3 @ SY410 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[501]) ).

thf(621,plain,
    ! [SV80: $i] :
      ( ( ~ ( ~ ! [SY414: $i] :
                  ( ~ ( subset @ SY414 @ ( sK9_B @ SV80 ) )
                  | ( are_equipotent @ SY414 @ ( sK9_B @ SV80 ) )
                  | ( in @ SY414 @ ( sK9_B @ SV80 ) ) )
            | ~ ~ ( ~ ! [SY415: $i] :
                        ( ~ ( in @ SY415 @ ( sK9_B @ SV80 ) )
                        | ( in @ ( powerset @ SY415 ) @ ( sK9_B @ SV80 ) ) )
                  | ~ ~ ( ~ ! [SY416: $i,SY417: $i] :
                              ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
                              | ~ ( subset @ SY417 @ SY416 )
                              | ( in @ SY417 @ ( sK9_B @ SV80 ) ) )
                        | ~ ( in @ SV80 @ ( sK9_B @ SV80 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[502]) ).

thf(622,plain,
    ! [SV81: $i] :
      ( ( ~ ( ~ ( element @ ( sK5_B @ SV81 ) @ ( powerset @ SV81 ) )
            | ~ ( empty @ ( sK5_B @ SV81 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[503]) ).

thf(623,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)],[504]) ).

thf(624,plain,
    ! [SV82: $i] :
      ( ( ~ ( ~ ! [SY418: $i,SY419: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                                | ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SV82 ) )
                            | ~ ( ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                                | ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY418 ) ) )
                      | ~ ( ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                          | ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SV82 )
                          | ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY418 ) ) )
                  | ( SY419
                    = ( set_union2 @ SV82 @ SY418 ) ) )
            | ~ ! [SY420: $i,SY421: $i] :
                  ( ( SY421
                   != ( set_union2 @ SV82 @ SY420 ) )
                  | ~ ( ~ ! [SY422: $i] :
                            ( ~ ( in @ SY422 @ SY421 )
                            | ( in @ SY422 @ SV82 )
                            | ( in @ SY422 @ SY420 ) )
                      | ~ ~ ( ~ ! [SY423: $i] :
                                  ( ~ ( in @ SY423 @ SV82 )
                                  | ( in @ SY423 @ SY421 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY420 )
                                  | ( in @ SX3 @ SY421 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[505]) ).

thf(625,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)],[506]) ).

thf(626,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK33_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)],[507]) ).

thf(627,plain,
    ! [SV83: $i] :
      ( ( ! [SY425: $i] :
            ~ ( ~ ! [SY426: $i,SY427: $i] :
                    ( ~ ( in @ SV83 @ SY426 )
                    | ~ ( in @ SY425 @ SY427 )
                    | ( in @ ( ordered_pair @ SV83 @ SY425 ) @ ( cartesian_product2 @ SY426 @ SY427 ) ) )
              | ~ ~ ( ~ ! [SY428: $i] :
                          ( ! [SY429: $i] :
                              ~ ( in @ ( ordered_pair @ SV83 @ SY425 ) @ ( cartesian_product2 @ SY428 @ SY429 ) )
                          | ( in @ SV83 @ SY428 ) )
                    | ~ ! [SY430: $i,SY431: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV83 @ SY425 ) @ ( cartesian_product2 @ SY430 @ SY431 ) )
                          | ( in @ SY425 @ SY431 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[508]) ).

thf(628,plain,
    ! [SV84: $i] :
      ( ( ~ ( ~ ! [SY432: $i] :
                  ( ~ ( subset @ SY432 @ ( sK10_B @ SV84 ) )
                  | ( are_equipotent @ SY432 @ ( sK10_B @ SV84 ) )
                  | ( in @ SY432 @ ( sK10_B @ SV84 ) ) )
            | ~ ~ ( ~ ! [SY433: $i] :
                        ( ~ ( ~ ! [SY434: $i] :
                                  ( ~ ( subset @ SY434 @ SY433 )
                                  | ( in @ SY434 @ ( sK11_SY302 @ SY433 @ SV84 ) ) )
                            | ~ ( in @ ( sK11_SY302 @ SY433 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
                        | ~ ( in @ SY433 @ ( sK10_B @ SV84 ) ) )
                  | ~ ~ ( ~ ! [SY435: $i,SY436: $i] :
                              ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
                              | ~ ( subset @ SY436 @ SY435 )
                              | ( in @ SY436 @ ( sK10_B @ SV84 ) ) )
                        | ~ ( in @ SV84 @ ( sK10_B @ SV84 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[509]) ).

thf(629,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ ( sK20_SY310 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK20_SY310 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK19_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 @ ( sK18_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[510]) ).

thf(630,plain,
    ! [SV85: $i] :
      ( ( ! [SY437: $i] :
            ~ ( ~ ! [SY438: $i] :
                    ( ! [SY439: $i] :
                        ( ( ordered_pair @ SV85 @ SY437 )
                       != ( ordered_pair @ SY438 @ SY439 ) )
                    | ( SV85 = SY438 ) )
              | ~ ! [SY440: $i,SY441: $i] :
                    ( ( ( ordered_pair @ SV85 @ SY437 )
                     != ( ordered_pair @ SY440 @ SY441 ) )
                    | ( SY437 = SY441 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[511]) ).

thf(631,plain,
    ! [SV86: $i] :
      ( ( ~ ( ~ ! [SY442: $i] :
                  ( ~ ( subset @ SV86 @ SY442 )
                  | ! [SY443: $i] : ( subset @ ( cartesian_product2 @ SV86 @ SY443 ) @ ( cartesian_product2 @ SY442 @ SY443 ) ) )
            | ~ ! [SY444: $i] :
                  ( ~ ( subset @ SV86 @ SY444 )
                  | ! [SY445: $i] : ( subset @ ( cartesian_product2 @ SY445 @ SV86 ) @ ( cartesian_product2 @ SY445 @ SY444 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[512]) ).

thf(632,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)],[513]) ).

thf(633,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)],[514]) ).

thf(634,plain,
    ! [SV87: $i] :
      ( ( ~ ( ~ ! [SY446: $i,SY447: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SV87 )
                          | ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY446 )
                          | ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SV87 )
                                | ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) )
                            | ~ ( ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY446 )
                                | ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) ) ) )
                  | ( SY447
                    = ( set_intersection2 @ SV87 @ SY446 ) ) )
            | ~ ! [SY448: $i,SY449: $i] :
                  ( ( SY449
                   != ( set_intersection2 @ SV87 @ SY448 ) )
                  | ~ ( ~ ! [SY450: $i] :
                            ( ~ ( in @ SY450 @ SV87 )
                            | ~ ( in @ SY450 @ SY448 )
                            | ( in @ SY450 @ SY449 ) )
                      | ~ ~ ( ~ ! [SY451: $i] :
                                  ( ~ ( in @ SY451 @ SY449 )
                                  | ( in @ SY451 @ SV87 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY449 )
                                  | ( in @ SX3 @ SY448 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[515]) ).

thf(635,plain,
    ! [SV88: $i] :
      ( ( ( empty @ SV88 )
        | ~ ( ~ ( element @ ( sK7_B @ SV88 ) @ ( powerset @ SV88 ) )
            | ~ ~ ( empty @ ( sK7_B @ SV88 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[516]) ).

thf(636,plain,
    ! [SV89: $i] :
      ( ( ! [SY453: $i] :
            ( ~ ( ~ ( in @ ( sK41_C @ SY453 @ SV89 ) @ SV89 )
                | ~ ~ ( in @ ( sK41_C @ SY453 @ SV89 ) @ SY453 ) )
            | ( element @ SV89 @ ( powerset @ SY453 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[517]) ).

thf(637,plain,
    ! [SV90: $i] :
      ( ( ~ ( ~ ! [SY454: $i,SY455: $i] :
                  ( ~ ( in @ SV90 @ SY455 )
                  | ~ ( in @ SY454 @ SY455 )
                  | ( subset @ ( unordered_pair @ SV90 @ SY454 ) @ SY455 ) )
            | ~ ~ ( ~ ! [SY456: $i,SY457: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV90 @ SY456 ) @ SY457 )
                        | ( in @ SV90 @ SY457 ) )
                  | ~ ! [SY458: $i,SY459: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV90 @ SY458 ) @ SY459 )
                        | ( in @ SY458 @ SY459 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[518]) ).

thf(638,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)],[519]) ).

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)],[520]) ).

thf(640,plain,
    ( ( ~ ( empty @ sK13_A )
      | ~ ( relation @ sK13_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[521]) ).

thf(641,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK25_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)],[522]) ).

thf(642,plain,
    ! [SV91: $i] :
      ( ( ~ ( ~ ! [SY460: $i,SY461: $i] :
                  ( ~ ( ~ ( ! [SY462: $i,SY463: $i] :
                              ( ~ ( in @ SY462 @ SV91 )
                              | ~ ( in @ SY463 @ SY460 )
                              | ( ( sK28_D @ SY461 @ SY460 @ SV91 )
                               != ( ordered_pair @ SY462 @ SY463 ) ) )
                          | ~ ( in @ ( sK28_D @ SY461 @ SY460 @ SV91 ) @ SY461 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY461 @ SY460 @ SV91 ) @ SV91 )
                                    | ~ ( in @ ( sK30_SY318 @ SY461 @ SY460 @ SV91 ) @ SY460 ) )
                              | ( ( sK28_D @ SY461 @ SY460 @ SV91 )
                               != ( ordered_pair @ ( sK29_SY316 @ SY461 @ SY460 @ SV91 ) @ ( sK30_SY318 @ SY461 @ SY460 @ SV91 ) ) ) )
                          | ( in @ ( sK28_D @ SY461 @ SY460 @ SV91 ) @ SY461 ) ) )
                  | ( SY461
                    = ( cartesian_product2 @ SV91 @ SY460 ) ) )
            | ~ ! [SY464: $i,SY465: $i] :
                  ( ( SY465
                   != ( cartesian_product2 @ SV91 @ SY464 ) )
                  | ~ ( ~ ! [SY466: $i] :
                            ( ! [SY467: $i,SY468: $i] :
                                ( ~ ( in @ SY467 @ SV91 )
                                | ~ ( in @ SY468 @ SY464 )
                                | ( SY466
                                 != ( ordered_pair @ SY467 @ SY468 ) ) )
                            | ( in @ SY466 @ SY465 ) )
                      | ~ ! [SY469: $i] :
                            ( ~ ( in @ SY469 @ SY465 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY469 @ SY465 @ SY464 @ SV91 ) @ SV91 )
                                      | ~ ( in @ ( sK27_SY313 @ SY469 @ SY465 @ SY464 @ SV91 ) @ SY464 ) )
                                | ( SY469
                                 != ( ordered_pair @ ( sK26_E @ SY469 @ SY465 @ SY464 @ SV91 ) @ ( sK27_SY313 @ SY469 @ SY465 @ SY464 @ SV91 ) ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[523]) ).

thf(643,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK39_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)],[524]) ).

thf(644,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)],[525]) ).

thf(645,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)],[526]) ).

thf(646,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)],[527]) ).

thf(647,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)],[528]) ).

thf(648,plain,
    ! [SV92: $i] :
      ( ( ~ ( relation @ SV92 )
        | ~ ( ~ ! [SY470: $i] :
                  ( ~ ( ~ ( ! [SY471: $i] :
                              ~ ( in @ ( ordered_pair @ SY471 @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                          | ~ ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY470 @ SV92 ) @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                          | ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) ) )
                  | ( SY470
                    = ( relation_rng @ SV92 ) ) )
            | ~ ! [SY472: $i] :
                  ( ( SY472
                   != ( relation_rng @ SV92 ) )
                  | ~ ( ~ ! [SY473: $i] :
                            ( ! [SY474: $i] :
                                ~ ( in @ ( ordered_pair @ SY474 @ SY473 ) @ SV92 )
                            | ( in @ SY473 @ SY472 ) )
                      | ~ ! [SY475: $i] :
                            ( ~ ( in @ SY475 @ SY472 )
                            | ( in @ ( ordered_pair @ ( sK14_D @ SY475 @ SY472 @ SV92 ) @ SY475 ) @ SV92 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[529]) ).

thf(649,plain,
    ! [SV93: $i] :
      ( ( ! [SY476: $i] :
            ~ ( ~ ! [SY477: $i,SY478: $i] :
                    ( ~ ( in @ SV93 @ SY477 )
                    | ~ ( in @ SY476 @ SY478 )
                    | ( in @ ( ordered_pair @ SV93 @ SY476 ) @ ( cartesian_product2 @ SY477 @ SY478 ) ) )
              | ~ ~ ( ~ ! [SY479: $i] :
                          ( ! [SY480: $i] :
                              ~ ( in @ ( ordered_pair @ SV93 @ SY476 ) @ ( cartesian_product2 @ SY479 @ SY480 ) )
                          | ( in @ SV93 @ SY479 ) )
                    | ~ ! [SY481: $i,SY482: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV93 @ SY476 ) @ ( cartesian_product2 @ SY481 @ SY482 ) )
                          | ( in @ SY476 @ SY482 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[530]) ).

thf(650,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)],[531]) ).

thf(651,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK36_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(652,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK35_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK35_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK35_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)],[533]) ).

thf(653,plain,
    ! [SV94: $i] :
      ( ( ~ ( ~ ! [SY483: $i,SY484: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SV94 )
                          | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY483 )
                          | ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SV94 )
                                | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) )
                            | ~ ( ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY483 )
                                | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) ) ) )
                  | ( SY484
                    = ( set_difference @ SV94 @ SY483 ) ) )
            | ~ ! [SY485: $i,SY486: $i] :
                  ( ( SY486
                   != ( set_difference @ SV94 @ SY485 ) )
                  | ~ ( ~ ! [SY487: $i] :
                            ( ~ ( in @ SY487 @ SV94 )
                            | ( in @ SY487 @ SY485 )
                            | ( in @ SY487 @ SY486 ) )
                      | ~ ~ ( ~ ! [SY488: $i] :
                                  ( ~ ( in @ SY488 @ SY486 )
                                  | ( in @ SY488 @ SV94 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY486 )
                                  | ~ ( in @ SX3 @ SY485 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[534]) ).

thf(654,plain,
    ! [SV95: $i] :
      ( ( ! [SY490: $i] :
            ( ~ ( element @ SY490 @ ( powerset @ SV95 ) )
            | ~ ( ~ ! [SY491: $i] :
                      ( ~ ( element @ SY491 @ ( powerset @ SV95 ) )
                      | ~ ( disjoint @ SY490 @ SY491 )
                      | ( subset @ SY490 @ ( subset_complement @ SV95 @ SY491 ) ) )
                | ~ ! [SY492: $i] :
                      ( ~ ( element @ SY492 @ ( powerset @ SV95 ) )
                      | ~ ( subset @ SY490 @ ( subset_complement @ SV95 @ SY492 ) )
                      | ( disjoint @ SY490 @ SY492 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[535]) ).

thf(655,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK40_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)],[536]) ).

thf(656,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)],[537]) ).

thf(657,plain,
    ! [SV96: $i,SV1: $i] :
      ( ( ~ ( in @ SV1 @ SV96 )
        | ( ( set_union2 @ ( singleton @ SV1 ) @ SV96 )
          = SV96 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[538]) ).

thf(658,plain,
    ! [SV97: $i,SV2: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV2 ) @ SV97 )
        | ~ ( in @ SV2 @ SV97 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[539]) ).

thf(659,plain,
    ! [SV98: $i,SV3: $i] :
      ( ( ( in @ SV3 @ SV98 )
        | ( disjoint @ ( singleton @ SV3 ) @ SV98 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[540]) ).

thf(660,plain,
    ! [SV4: $i,SV99: $i] :
      ( ( ~ ( element @ SV99 @ ( powerset @ SV4 ) )
        | ! [SY493: $i] :
            ( ~ ( in @ SY493 @ SV99 )
            | ( in @ SY493 @ SV4 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[541]) ).

thf(661,plain,
    ! [SV100: $i,SV5: $i] :
      ( ( ~ ( in @ SV5 @ SV100 )
        | ( subset @ SV5 @ ( union @ SV100 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[542]) ).

thf(662,plain,
    ! [SV101: $i,SV6: $i] :
      ( ( ~ ( in @ SV6 @ SV101 )
        | ( ( set_union2 @ ( singleton @ SV6 ) @ SV101 )
          = SV101 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[543]) ).

thf(663,plain,
    ! [SV102: $i,SV7: $i] :
      ( ( ~ ( in @ SV7 @ SV102 )
        | ( subset @ SV7 @ ( union @ SV102 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[544]) ).

thf(664,plain,
    ! [SV103: $i,SV8: $i] :
      ( ( ~ ( in @ SV8 @ SV103 )
        | ~ ( in @ SV103 @ SV8 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[545]) ).

thf(665,plain,
    ! [SV104: $i,SV9: $i] :
      ( ( ( ordered_pair @ SV9 @ SV104 )
        = ( unordered_pair @ ( unordered_pair @ SV9 @ SV104 ) @ ( singleton @ SV9 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[546]) ).

thf(666,plain,
    ! [SV105: $i,SV10: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV10 @ SV105 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[547]) ).

thf(667,plain,
    ! [SV106: $i,SV11: $i] :
      ( ( ~ ( in @ SV11 @ SV106 )
        | ( element @ SV11 @ SV106 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[548]) ).

thf(668,plain,
    ! [SV107: $i,SV12: $i] :
      ( ( ~ ( element @ SV12 @ SV107 )
        | ( empty @ SV107 )
        | ( in @ SV12 @ SV107 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[549]) ).

thf(669,plain,
    ! [SV13: $i,SV108: $i] :
      ( ( ! [SY494: $i] :
            ( ~ ( element @ SV108 @ ( powerset @ SY494 ) )
            | ~ ( in @ SV13 @ SV108 )
            | ( element @ SV13 @ SY494 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[550]) ).

thf(670,plain,
    ! [SV14: $i,SV109: $i] :
      ( ( ~ ( empty @ SV109 )
        | ~ ( in @ SV14 @ SV109 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[551]) ).

thf(671,plain,
    ! [SV15: $i] :
      ( ( ( singleton @ SV15 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[552]) ).

thf(672,plain,
    ! [SV110: $i,SV16: $i] :
      ( ( ~ ( subset @ SV16 @ SV110 )
        | ! [SY495: $i] :
            ( ( in @ SY495 @ SV16 )
            | ( subset @ SV16 @ ( set_difference @ SV110 @ ( singleton @ SY495 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[553]) ).

thf(673,plain,
    ! [SV111: $i,SV17: $i] :
      ( ( ! [SY496: $i,SY497: $i] :
            ( ( SV17 = SY497 )
            | ( SV17 = SY496 )
            | ( ( unordered_pair @ SV17 @ SV111 )
             != ( unordered_pair @ SY496 @ SY497 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[554]) ).

thf(674,plain,
    ! [SV112: $i,SV18: $i] :
      ( ( ! [SY498: $i,SY499: $i] :
            ( ~ ( subset @ SV18 @ SV112 )
            | ~ ( subset @ SY498 @ SY499 )
            | ( subset @ ( cartesian_product2 @ SV18 @ SY498 ) @ ( cartesian_product2 @ SV112 @ SY499 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[555]) ).

thf(675,plain,
    ! [SV113: $i,SV19: $i] :
      ( ( ~ ( subset @ SV19 @ SV113 )
        | ( ( set_union2 @ SV19 @ SV113 )
          = SV113 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[556]) ).

thf(676,plain,
    ! [SV114: $i,SV20: $i] :
      ( ( subset @ ( set_intersection2 @ SV20 @ SV114 ) @ SV20 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[557]) ).

thf(677,plain,
    ! [SV115: $i,SV21: $i] :
      ( ( ! [SY500: $i] :
            ( ~ ( subset @ SV21 @ SV115 )
            | ~ ( subset @ SV21 @ SY500 )
            | ( subset @ SV21 @ ( set_intersection2 @ SV115 @ SY500 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[558]) ).

thf(678,plain,
    ! [SV116: $i,SV22: $i] :
      ( ( ! [SY501: $i] :
            ( ~ ( subset @ SV22 @ SV116 )
            | ~ ( subset @ SV116 @ SY501 )
            | ( subset @ SV22 @ SY501 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[559]) ).

thf(679,plain,
    ! [SV117: $i,SV23: $i] :
      ( ( ~ ( subset @ SV23 @ SV117 )
        | ! [SY502: $i] : ( subset @ ( set_intersection2 @ SV23 @ SY502 ) @ ( set_intersection2 @ SV117 @ SY502 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[560]) ).

thf(680,plain,
    ! [SV118: $i,SV24: $i] :
      ( ( ~ ( subset @ SV24 @ SV118 )
        | ( ( set_intersection2 @ SV24 @ SV118 )
          = SV24 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[561]) ).

thf(681,plain,
    ! [SV119: $i,SV26: $i] :
      ( ( ~ ( subset @ SV26 @ SV119 )
        | ! [SY503: $i] : ( subset @ ( set_difference @ SV26 @ SY503 ) @ ( set_difference @ SV119 @ SY503 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[563]) ).

thf(682,plain,
    ! [SV120: $i,SV27: $i] :
      ( ( subset @ ( set_difference @ SV27 @ SV120 ) @ SV27 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[564]) ).

thf(683,plain,
    ! [SV121: $i,SV28: $i] :
      ( ( ( set_union2 @ SV28 @ ( set_difference @ SV121 @ SV28 ) )
        = ( set_union2 @ SV28 @ SV121 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[565]) ).

thf(684,plain,
    ! [SV29: $i] :
      ( ( ( ~ ( subset @ SV29 @ empty_set ) )
        = $true )
      | ( ( SV29 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[566]) ).

thf(685,plain,
    ! [SV122: $i,SV30: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV30 @ SV122 ) @ SV122 )
        = ( set_difference @ SV30 @ SV122 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[567]) ).

thf(686,plain,
    ! [SV123: $i,SV31: $i] :
      ( ( ~ ( subset @ SV31 @ SV123 )
        | ( SV123
          = ( set_union2 @ SV31 @ ( set_difference @ SV123 @ SV31 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[568]) ).

thf(687,plain,
    ! [SV32: $i,SV124: $i] :
      ( ( ~ ( element @ SV124 @ ( powerset @ ( powerset @ SV32 ) ) )
        | ( SV124 = empty_set )
        | ( ( complements_of_subsets @ SV32 @ SV124 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[569]) ).

thf(688,plain,
    ! [SV125: $i,SV33: $i] :
      ( ( ( set_difference @ SV33 @ ( set_difference @ SV33 @ SV125 ) )
        = ( set_intersection2 @ SV33 @ SV125 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[570]) ).

thf(689,plain,
    ! [SV34: $i] :
      ( ( ( SV34 = empty_set )
        = $true )
      | ( ( ! [SY362: $i] :
              ( ~ ( element @ SY362 @ ( powerset @ SV34 ) )
              | ! [SY363: $i] :
                  ( ~ ( element @ SY363 @ SV34 )
                  | ( in @ SY363 @ SY362 )
                  | ( in @ SY363 @ ( subset_complement @ SV34 @ SY362 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[571]) ).

thf(690,plain,
    ! [SV126: $i,SV35: $i] :
      ( ( ! [SY504: $i] :
            ( ~ ( element @ SY504 @ ( powerset @ SV35 ) )
            | ~ ( in @ SV126 @ ( subset_complement @ SV35 @ SY504 ) )
            | ~ ( in @ SV126 @ SY504 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[572]) ).

thf(691,plain,
    ! [SV36: $i,SV127: $i] :
      ( ( ~ ( proper_subset @ SV127 @ SV36 )
        | ~ ( subset @ SV36 @ SV127 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[573]) ).

thf(692,plain,
    ! [SV37: $i,SV128: $i] :
      ( ( ! [SY505: $i] :
            ( ~ ( disjoint @ SV128 @ SY505 )
            | ~ ( subset @ SV37 @ SV128 )
            | ( disjoint @ SV37 @ SY505 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[574]) ).

thf(693,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ~ ( subset @ ( singleton @ SV39 ) @ ( singleton @ SV129 ) )
        | ( SV39 = SV129 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[576]) ).

thf(694,plain,
    ! [SV130: $i,SV40: $i] :
      ( ( subset @ SV40 @ ( set_union2 @ SV40 @ SV130 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[577]) ).

thf(695,plain,
    ! [SV131: $i,SV41: $i] :
      ( ( ! [SY506: $i] :
            ( ~ ( subset @ SV41 @ SV131 )
            | ~ ( subset @ SY506 @ SV131 )
            | ( subset @ ( set_union2 @ SV41 @ SY506 ) @ SV131 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[578]) ).

thf(696,plain,
    ! [SV132: $i,SV42: $i] :
      ( ( ! [SY507: $i] :
            ( ( singleton @ SV42 )
           != ( unordered_pair @ SV132 @ SY507 ) )
        | ( SV42 = SV132 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[579]) ).

thf(697,plain,
    ! [SV133: $i,SV44: $i] :
      ( ( ! [SY508: $i] :
            ( ( ( singleton @ SV44 )
             != ( unordered_pair @ SV133 @ SY508 ) )
            | ( SV133 = SY508 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[581]) ).

thf(698,plain,
    ! [SV134: $i,SV45: $i] :
      ( ( ( unordered_pair @ SV45 @ SV134 )
        = ( unordered_pair @ SV134 @ SV45 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[582]) ).

thf(699,plain,
    ! [SV135: $i,SV46: $i] :
      ( ( ( set_union2 @ SV46 @ SV135 )
        = ( set_union2 @ SV135 @ SV46 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[583]) ).

thf(700,plain,
    ! [SV136: $i,SV47: $i] :
      ( ( ( set_intersection2 @ SV47 @ SV136 )
        = ( set_intersection2 @ SV136 @ SV47 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[584]) ).

thf(701,plain,
    ! [SV48: $i,SV137: $i] :
      ( ( ~ ( element @ SV137 @ ( powerset @ SV48 ) )
        | ( ( subset_complement @ SV48 @ SV137 )
          = ( set_difference @ SV48 @ SV137 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[585]) ).

thf(702,plain,
    ! [SV50: $i,SV138: $i] :
      ( ( ~ ( element @ SV138 @ ( powerset @ SV50 ) )
        | ( element @ ( subset_complement @ SV50 @ SV138 ) @ ( powerset @ SV50 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[587]) ).

thf(703,plain,
    ! [SV51: $i,SV139: $i] :
      ( ( ~ ( element @ SV139 @ ( powerset @ ( powerset @ SV51 ) ) )
        | ( element @ ( union_of_subsets @ SV51 @ SV139 ) @ ( powerset @ SV51 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[588]) ).

thf(704,plain,
    ! [SV52: $i,SV140: $i] :
      ( ( ~ ( element @ SV140 @ ( powerset @ ( powerset @ SV52 ) ) )
        | ( element @ ( meet_of_subsets @ SV52 @ SV140 ) @ ( powerset @ SV52 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[589]) ).

thf(705,plain,
    ! [SV53: $i,SV141: $i] :
      ( ( ! [SY509: $i] :
            ( ~ ( element @ SV141 @ ( powerset @ SV53 ) )
            | ~ ( element @ SY509 @ ( powerset @ SV53 ) )
            | ( element @ ( subset_difference @ SV53 @ SV141 @ SY509 ) @ ( powerset @ SV53 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[590]) ).

thf(706,plain,
    ! [SV54: $i,SV142: $i] :
      ( ( ~ ( element @ SV142 @ ( powerset @ ( powerset @ SV54 ) ) )
        | ( element @ ( complements_of_subsets @ SV54 @ SV142 ) @ ( powerset @ ( powerset @ SV54 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[591]) ).

thf(707,plain,
    ! [SV56: $i] :
      ( ( empty @ ( powerset @ SV56 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[593]) ).

thf(708,plain,
    ! [SV57: $i] :
      ( ( empty @ ( singleton @ SV57 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[594]) ).

thf(709,plain,
    ! [SV58: $i] :
      ( ( ( empty @ SV58 )
        = $true )
      | ( ( ! [SY387: $i] :
              ~ ( empty @ ( set_union2 @ SV58 @ SY387 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[595]) ).

thf(710,plain,
    ! [SV143: $i,SV59: $i] :
      ( ( ~ ( empty @ ( unordered_pair @ SV59 @ SV143 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[596]) ).

thf(711,plain,
    ! [SV60: $i] :
      ( ( ( empty @ SV60 )
        = $true )
      | ( ( ! [SY389: $i] :
              ~ ( empty @ ( set_union2 @ SY389 @ SV60 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[597]) ).

thf(712,plain,
    ! [SV63: $i,SV144: $i] :
      ( ( ~ ( element @ SV144 @ ( powerset @ SV63 ) )
        | ( ( subset_complement @ SV63 @ ( subset_complement @ SV63 @ SV144 ) )
          = SV144 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[600]) ).

thf(713,plain,
    ! [SV64: $i,SV145: $i] :
      ( ( ~ ( element @ SV145 @ ( powerset @ ( powerset @ SV64 ) ) )
        | ( ( complements_of_subsets @ SV64 @ ( complements_of_subsets @ SV64 @ SV145 ) )
          = SV145 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[601]) ).

thf(714,plain,
    ! [SV65: $i,SV146: $i] :
      ( ( ~ ( element @ SV146 @ ( powerset @ ( powerset @ SV65 ) ) )
        | ( ( union_of_subsets @ SV65 @ SV146 )
          = ( union @ SV146 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[603]) ).

thf(715,plain,
    ! [SV66: $i,SV147: $i] :
      ( ( ~ ( element @ SV147 @ ( powerset @ ( powerset @ SV66 ) ) )
        | ( ( meet_of_subsets @ SV66 @ SV147 )
          = ( set_meet @ SV147 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[604]) ).

thf(716,plain,
    ! [SV67: $i,SV148: $i] :
      ( ( ! [SY510: $i] :
            ( ~ ( element @ SV148 @ ( powerset @ SV67 ) )
            | ~ ( element @ SY510 @ ( powerset @ SV67 ) )
            | ( ( subset_difference @ SV67 @ SV148 @ SY510 )
              = ( set_difference @ SV148 @ SY510 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[605]) ).

thf(717,plain,
    ! [SV149: $i,SV69: $i] :
      ( ( ~ ( disjoint @ SV69 @ SV149 )
        | ( disjoint @ SV149 @ SV69 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[607]) ).

thf(718,plain,
    ! [SV74: $i,SV150: $i] :
      ( ( ! [SY511: $i] :
            ( ~ ( element @ SV150 @ ( powerset @ SY511 ) )
            | ~ ( in @ SV74 @ SV150 )
            | ~ ( empty @ SY511 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[612]) ).

thf(719,plain,
    ! [SV75: $i] :
      ( ( ( ~ ( empty @ SV75 ) )
        = $true )
      | ( ( SV75 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[613]) ).

thf(720,plain,
    ! [SV151: $i,SV76: $i] :
      ( ( ( SV76 = SV151 )
        | ~ ( empty @ SV76 )
        | ~ ( empty @ SV151 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[614]) ).

thf(721,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
                | ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) )
            | ~ ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
                | ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) ) )
        | ( SV77 = SV152 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[616]) ).

thf(722,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[617]) ).

thf(723,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[617]) ).

thf(724,plain,
    ! [SV78: $i] :
      ( ( ( ~ ( relation @ SV78 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY401: $i] :
                    ( ~ ( ~ ( ! [SY402: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ SY402 ) @ SV78 )
                            | ~ ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ ( sK23_SY312 @ SY401 @ SV78 ) ) @ SV78 )
                            | ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) ) )
                    | ( SY401
                      = ( relation_dom @ SV78 ) ) )
              | ~ ! [SY403: $i] :
                    ( ( SY403
                     != ( relation_dom @ SV78 ) )
                    | ~ ( ~ ! [SY404: $i] :
                              ( ! [SY405: $i] :
                                  ~ ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SV78 )
                              | ( in @ SY404 @ SY403 ) )
                        | ~ ! [SY406: $i] :
                              ( ~ ( in @ SY406 @ SY403 )
                              | ( in @ ( ordered_pair @ SY406 @ ( sK21_D @ SY406 @ SY403 @ SV78 ) ) @ SV78 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[618]) ).

thf(725,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK34_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[619]) ).

thf(726,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[619]) ).

thf(727,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY407: $i,SY408: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                            | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                             != SV79 ) )
                        | ~ ( ~ ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                            | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                             != SY407 ) ) )
                  | ~ ( ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                      | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                        = SV79 )
                      | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                        = SY407 ) ) )
              | ( SY408
                = ( unordered_pair @ SV79 @ SY407 ) ) )
        | ~ ! [SY409: $i,SY410: $i] :
              ( ( SY410
               != ( unordered_pair @ SV79 @ SY409 ) )
              | ~ ( ~ ! [SY411: $i] :
                        ( ~ ( in @ SY411 @ SY410 )
                        | ( SY411 = SV79 )
                        | ( SY411 = SY409 ) )
                  | ~ ~ ( ~ ! [SY412: $i] :
                              ( ( SY412 != SV79 )
                              | ( in @ SY412 @ SY410 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY409 )
                              | ( in @ SX3 @ SY410 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[620]) ).

thf(728,plain,
    ! [SV80: $i] :
      ( ( ~ ! [SY414: $i] :
              ( ~ ( subset @ SY414 @ ( sK9_B @ SV80 ) )
              | ( are_equipotent @ SY414 @ ( sK9_B @ SV80 ) )
              | ( in @ SY414 @ ( sK9_B @ SV80 ) ) )
        | ~ ~ ( ~ ! [SY415: $i] :
                    ( ~ ( in @ SY415 @ ( sK9_B @ SV80 ) )
                    | ( in @ ( powerset @ SY415 ) @ ( sK9_B @ SV80 ) ) )
              | ~ ~ ( ~ ! [SY416: $i,SY417: $i] :
                          ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
                          | ~ ( subset @ SY417 @ SY416 )
                          | ( in @ SY417 @ ( sK9_B @ SV80 ) ) )
                    | ~ ( in @ SV80 @ ( sK9_B @ SV80 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[621]) ).

thf(729,plain,
    ! [SV81: $i] :
      ( ( ~ ( element @ ( sK5_B @ SV81 ) @ ( powerset @ SV81 ) )
        | ~ ( empty @ ( sK5_B @ SV81 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[622]) ).

thf(730,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[623]) ).

thf(731,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[623]) ).

thf(732,plain,
    ! [SV82: $i] :
      ( ( ~ ! [SY418: $i,SY419: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                            | ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SV82 ) )
                        | ~ ( ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                            | ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY418 ) ) )
                  | ~ ( ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                      | ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SV82 )
                      | ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY418 ) ) )
              | ( SY419
                = ( set_union2 @ SV82 @ SY418 ) ) )
        | ~ ! [SY420: $i,SY421: $i] :
              ( ( SY421
               != ( set_union2 @ SV82 @ SY420 ) )
              | ~ ( ~ ! [SY422: $i] :
                        ( ~ ( in @ SY422 @ SY421 )
                        | ( in @ SY422 @ SV82 )
                        | ( in @ SY422 @ SY420 ) )
                  | ~ ~ ( ~ ! [SY423: $i] :
                              ( ~ ( in @ SY423 @ SV82 )
                              | ( in @ SY423 @ SY421 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY420 )
                              | ( in @ SX3 @ SY421 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[624]) ).

thf(733,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[625]) ).

thf(734,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)],[625]) ).

thf(735,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[626]) ).

thf(736,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)],[626]) ).

thf(737,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ~ ( ~ ! [SY512: $i,SY513: $i] :
                  ( ~ ( in @ SV83 @ SY512 )
                  | ~ ( in @ SV153 @ SY513 )
                  | ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY512 @ SY513 ) ) )
            | ~ ~ ( ~ ! [SY514: $i] :
                        ( ! [SY515: $i] :
                            ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY514 @ SY515 ) )
                        | ( in @ SV83 @ SY514 ) )
                  | ~ ! [SY516: $i,SY517: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY516 @ SY517 ) )
                        | ( in @ SV153 @ SY517 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[627]) ).

thf(738,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY432: $i] :
              ( ~ ( subset @ SY432 @ ( sK10_B @ SV84 ) )
              | ( are_equipotent @ SY432 @ ( sK10_B @ SV84 ) )
              | ( in @ SY432 @ ( sK10_B @ SV84 ) ) )
        | ~ ~ ( ~ ! [SY433: $i] :
                    ( ~ ( ~ ! [SY434: $i] :
                              ( ~ ( subset @ SY434 @ SY433 )
                              | ( in @ SY434 @ ( sK11_SY302 @ SY433 @ SV84 ) ) )
                        | ~ ( in @ ( sK11_SY302 @ SY433 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
                    | ~ ( in @ SY433 @ ( sK10_B @ SV84 ) ) )
              | ~ ~ ( ~ ! [SY435: $i,SY436: $i] :
                          ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
                          | ~ ( subset @ SY436 @ SY435 )
                          | ( in @ SY436 @ ( sK10_B @ SV84 ) ) )
                    | ~ ( in @ SV84 @ ( sK10_B @ SV84 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[628]) ).

thf(739,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ ( sK20_SY310 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK20_SY310 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[629]) ).

thf(740,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 @ ( sK18_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[629]) ).

thf(741,plain,
    ! [SV154: $i,SV85: $i] :
      ( ( ~ ( ~ ! [SY518: $i] :
                  ( ! [SY519: $i] :
                      ( ( ordered_pair @ SV85 @ SV154 )
                     != ( ordered_pair @ SY518 @ SY519 ) )
                  | ( SV85 = SY518 ) )
            | ~ ! [SY520: $i,SY521: $i] :
                  ( ( ( ordered_pair @ SV85 @ SV154 )
                   != ( ordered_pair @ SY520 @ SY521 ) )
                  | ( SV154 = SY521 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[630]) ).

thf(742,plain,
    ! [SV86: $i] :
      ( ( ~ ! [SY442: $i] :
              ( ~ ( subset @ SV86 @ SY442 )
              | ! [SY443: $i] : ( subset @ ( cartesian_product2 @ SV86 @ SY443 ) @ ( cartesian_product2 @ SY442 @ SY443 ) ) )
        | ~ ! [SY444: $i] :
              ( ~ ( subset @ SV86 @ SY444 )
              | ! [SY445: $i] : ( subset @ ( cartesian_product2 @ SY445 @ SV86 ) @ ( cartesian_product2 @ SY445 @ SY444 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[631]) ).

thf(743,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[632]) ).

thf(744,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[632]) ).

thf(745,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[633]) ).

thf(746,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[633]) ).

thf(747,plain,
    ! [SV87: $i] :
      ( ( ~ ! [SY446: $i,SY447: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SV87 )
                      | ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY446 )
                      | ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SV87 )
                            | ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) )
                        | ~ ( ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY446 )
                            | ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) ) ) )
              | ( SY447
                = ( set_intersection2 @ SV87 @ SY446 ) ) )
        | ~ ! [SY448: $i,SY449: $i] :
              ( ( SY449
               != ( set_intersection2 @ SV87 @ SY448 ) )
              | ~ ( ~ ! [SY450: $i] :
                        ( ~ ( in @ SY450 @ SV87 )
                        | ~ ( in @ SY450 @ SY448 )
                        | ( in @ SY450 @ SY449 ) )
                  | ~ ~ ( ~ ! [SY451: $i] :
                              ( ~ ( in @ SY451 @ SY449 )
                              | ( in @ SY451 @ SV87 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY449 )
                              | ( in @ SX3 @ SY448 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[634]) ).

thf(748,plain,
    ! [SV88: $i] :
      ( ( ( empty @ SV88 )
        = $true )
      | ( ( ~ ( ~ ( element @ ( sK7_B @ SV88 ) @ ( powerset @ SV88 ) )
              | ~ ~ ( empty @ ( sK7_B @ SV88 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[635]) ).

thf(749,plain,
    ! [SV89: $i,SV155: $i] :
      ( ( ~ ( ~ ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV89 )
            | ~ ~ ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV155 ) )
        | ( element @ SV89 @ ( powerset @ SV155 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[636]) ).

thf(750,plain,
    ! [SV90: $i] :
      ( ( ~ ! [SY454: $i,SY455: $i] :
              ( ~ ( in @ SV90 @ SY455 )
              | ~ ( in @ SY454 @ SY455 )
              | ( subset @ ( unordered_pair @ SV90 @ SY454 ) @ SY455 ) )
        | ~ ~ ( ~ ! [SY456: $i,SY457: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV90 @ SY456 ) @ SY457 )
                    | ( in @ SV90 @ SY457 ) )
              | ~ ! [SY458: $i,SY459: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV90 @ SY458 ) @ SY459 )
                    | ( in @ SY458 @ SY459 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[637]) ).

thf(751,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[638]) ).

thf(752,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[638]) ).

thf(753,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[639]) ).

thf(754,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[639]) ).

thf(755,plain,
    ( ( ~ ( empty @ sK13_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[640]) ).

thf(756,plain,
    ( ( ~ ( relation @ sK13_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[640]) ).

thf(757,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[641]) ).

thf(758,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[641]) ).

thf(759,plain,
    ! [SV91: $i] :
      ( ( ~ ! [SY460: $i,SY461: $i] :
              ( ~ ( ~ ( ! [SY462: $i,SY463: $i] :
                          ( ~ ( in @ SY462 @ SV91 )
                          | ~ ( in @ SY463 @ SY460 )
                          | ( ( sK28_D @ SY461 @ SY460 @ SV91 )
                           != ( ordered_pair @ SY462 @ SY463 ) ) )
                      | ~ ( in @ ( sK28_D @ SY461 @ SY460 @ SV91 ) @ SY461 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY461 @ SY460 @ SV91 ) @ SV91 )
                                | ~ ( in @ ( sK30_SY318 @ SY461 @ SY460 @ SV91 ) @ SY460 ) )
                          | ( ( sK28_D @ SY461 @ SY460 @ SV91 )
                           != ( ordered_pair @ ( sK29_SY316 @ SY461 @ SY460 @ SV91 ) @ ( sK30_SY318 @ SY461 @ SY460 @ SV91 ) ) ) )
                      | ( in @ ( sK28_D @ SY461 @ SY460 @ SV91 ) @ SY461 ) ) )
              | ( SY461
                = ( cartesian_product2 @ SV91 @ SY460 ) ) )
        | ~ ! [SY464: $i,SY465: $i] :
              ( ( SY465
               != ( cartesian_product2 @ SV91 @ SY464 ) )
              | ~ ( ~ ! [SY466: $i] :
                        ( ! [SY467: $i,SY468: $i] :
                            ( ~ ( in @ SY467 @ SV91 )
                            | ~ ( in @ SY468 @ SY464 )
                            | ( SY466
                             != ( ordered_pair @ SY467 @ SY468 ) ) )
                        | ( in @ SY466 @ SY465 ) )
                  | ~ ! [SY469: $i] :
                        ( ~ ( in @ SY469 @ SY465 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY469 @ SY465 @ SY464 @ SV91 ) @ SV91 )
                                  | ~ ( in @ ( sK27_SY313 @ SY469 @ SY465 @ SY464 @ SV91 ) @ SY464 ) )
                            | ( SY469
                             != ( ordered_pair @ ( sK26_E @ SY469 @ SY465 @ SY464 @ SV91 ) @ ( sK27_SY313 @ SY469 @ SY465 @ SY464 @ SV91 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[642]) ).

thf(760,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[643]) ).

thf(761,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[643]) ).

thf(762,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[644]) ).

thf(763,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)],[644]) ).

thf(764,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[645]) ).

thf(765,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[645]) ).

thf(766,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[646]) ).

thf(767,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[646]) ).

thf(768,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)],[647]) ).

thf(769,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)],[647]) ).

thf(770,plain,
    ! [SV92: $i] :
      ( ( ( ~ ( relation @ SV92 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY470: $i] :
                    ( ~ ( ~ ( ! [SY471: $i] :
                                ~ ( in @ ( ordered_pair @ SY471 @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                            | ~ ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY470 @ SV92 ) @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                            | ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) ) )
                    | ( SY470
                      = ( relation_rng @ SV92 ) ) )
              | ~ ! [SY472: $i] :
                    ( ( SY472
                     != ( relation_rng @ SV92 ) )
                    | ~ ( ~ ! [SY473: $i] :
                              ( ! [SY474: $i] :
                                  ~ ( in @ ( ordered_pair @ SY474 @ SY473 ) @ SV92 )
                              | ( in @ SY473 @ SY472 ) )
                        | ~ ! [SY475: $i] :
                              ( ~ ( in @ SY475 @ SY472 )
                              | ( in @ ( ordered_pair @ ( sK14_D @ SY475 @ SY472 @ SV92 ) @ SY475 ) @ SV92 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[648]) ).

thf(771,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ~ ( ~ ! [SY522: $i,SY523: $i] :
                  ( ~ ( in @ SV93 @ SY522 )
                  | ~ ( in @ SV156 @ SY523 )
                  | ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY522 @ SY523 ) ) )
            | ~ ~ ( ~ ! [SY524: $i] :
                        ( ! [SY525: $i] :
                            ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY524 @ SY525 ) )
                        | ( in @ SV93 @ SY524 ) )
                  | ~ ! [SY526: $i,SY527: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY526 @ SY527 ) )
                        | ( in @ SV156 @ SY527 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[649]) ).

thf(772,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[650]) ).

thf(773,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)],[650]) ).

thf(774,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK36_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)],[651]) ).

thf(775,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)],[651]) ).

thf(776,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK35_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK35_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[652]) ).

thf(777,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)],[652]) ).

thf(778,plain,
    ! [SV94: $i] :
      ( ( ~ ! [SY483: $i,SY484: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SV94 )
                      | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY483 )
                      | ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SV94 )
                            | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) )
                        | ~ ( ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY483 )
                            | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) ) ) )
              | ( SY484
                = ( set_difference @ SV94 @ SY483 ) ) )
        | ~ ! [SY485: $i,SY486: $i] :
              ( ( SY486
               != ( set_difference @ SV94 @ SY485 ) )
              | ~ ( ~ ! [SY487: $i] :
                        ( ~ ( in @ SY487 @ SV94 )
                        | ( in @ SY487 @ SY485 )
                        | ( in @ SY487 @ SY486 ) )
                  | ~ ~ ( ~ ! [SY488: $i] :
                              ( ~ ( in @ SY488 @ SY486 )
                              | ( in @ SY488 @ SV94 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY486 )
                              | ~ ( in @ SX3 @ SY485 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[653]) ).

thf(779,plain,
    ! [SV95: $i,SV157: $i] :
      ( ( ~ ( element @ SV157 @ ( powerset @ SV95 ) )
        | ~ ( ~ ! [SY528: $i] :
                  ( ~ ( element @ SY528 @ ( powerset @ SV95 ) )
                  | ~ ( disjoint @ SV157 @ SY528 )
                  | ( subset @ SV157 @ ( subset_complement @ SV95 @ SY528 ) ) )
            | ~ ! [SY529: $i] :
                  ( ~ ( element @ SY529 @ ( powerset @ SV95 ) )
                  | ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SY529 ) )
                  | ( disjoint @ SV157 @ SY529 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[654]) ).

thf(780,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[655]) ).

thf(781,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[655]) ).

thf(782,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[656]) ).

thf(783,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)],[656]) ).

thf(784,plain,
    ! [SV96: $i,SV1: $i] :
      ( ( ( ~ ( in @ SV1 @ SV96 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV1 ) @ SV96 )
          = SV96 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[657]) ).

thf(785,plain,
    ! [SV97: $i,SV2: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV2 ) @ SV97 ) )
        = $true )
      | ( ( ~ ( in @ SV2 @ SV97 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[658]) ).

thf(786,plain,
    ! [SV98: $i,SV3: $i] :
      ( ( ( in @ SV3 @ SV98 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV3 ) @ SV98 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[659]) ).

thf(787,plain,
    ! [SV4: $i,SV99: $i] :
      ( ( ( ~ ( element @ SV99 @ ( powerset @ SV4 ) ) )
        = $true )
      | ( ( ! [SY493: $i] :
              ( ~ ( in @ SY493 @ SV99 )
              | ( in @ SY493 @ SV4 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[660]) ).

thf(788,plain,
    ! [SV100: $i,SV5: $i] :
      ( ( ( ~ ( in @ SV5 @ SV100 ) )
        = $true )
      | ( ( subset @ SV5 @ ( union @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[661]) ).

thf(789,plain,
    ! [SV101: $i,SV6: $i] :
      ( ( ( ~ ( in @ SV6 @ SV101 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV6 ) @ SV101 )
          = SV101 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[662]) ).

thf(790,plain,
    ! [SV102: $i,SV7: $i] :
      ( ( ( ~ ( in @ SV7 @ SV102 ) )
        = $true )
      | ( ( subset @ SV7 @ ( union @ SV102 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[663]) ).

thf(791,plain,
    ! [SV103: $i,SV8: $i] :
      ( ( ( ~ ( in @ SV8 @ SV103 ) )
        = $true )
      | ( ( ~ ( in @ SV103 @ SV8 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[664]) ).

thf(792,plain,
    ! [SV105: $i,SV10: $i] :
      ( ( empty @ ( ordered_pair @ SV10 @ SV105 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[666]) ).

thf(793,plain,
    ! [SV106: $i,SV11: $i] :
      ( ( ( ~ ( in @ SV11 @ SV106 ) )
        = $true )
      | ( ( element @ SV11 @ SV106 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[667]) ).

thf(794,plain,
    ! [SV107: $i,SV12: $i] :
      ( ( ( ~ ( element @ SV12 @ SV107 ) )
        = $true )
      | ( ( ( empty @ SV107 )
          | ( in @ SV12 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[668]) ).

thf(795,plain,
    ! [SV13: $i,SV158: $i,SV108: $i] :
      ( ( ~ ( element @ SV108 @ ( powerset @ SV158 ) )
        | ~ ( in @ SV13 @ SV108 )
        | ( element @ SV13 @ SV158 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[669]) ).

thf(796,plain,
    ! [SV14: $i,SV109: $i] :
      ( ( ( ~ ( empty @ SV109 ) )
        = $true )
      | ( ( ~ ( in @ SV14 @ SV109 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[670]) ).

thf(797,plain,
    ! [SV110: $i,SV16: $i] :
      ( ( ( ~ ( subset @ SV16 @ SV110 ) )
        = $true )
      | ( ( ! [SY495: $i] :
              ( ( in @ SY495 @ SV16 )
              | ( subset @ SV16 @ ( set_difference @ SV110 @ ( singleton @ SY495 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[672]) ).

thf(798,plain,
    ! [SV111: $i,SV159: $i,SV17: $i] :
      ( ( ! [SY530: $i] :
            ( ( SV17 = SY530 )
            | ( SV17 = SV159 )
            | ( ( unordered_pair @ SV17 @ SV111 )
             != ( unordered_pair @ SV159 @ SY530 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[673]) ).

thf(799,plain,
    ! [SV160: $i,SV112: $i,SV18: $i] :
      ( ( ! [SY531: $i] :
            ( ~ ( subset @ SV18 @ SV112 )
            | ~ ( subset @ SV160 @ SY531 )
            | ( subset @ ( cartesian_product2 @ SV18 @ SV160 ) @ ( cartesian_product2 @ SV112 @ SY531 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[674]) ).

thf(800,plain,
    ! [SV113: $i,SV19: $i] :
      ( ( ( ~ ( subset @ SV19 @ SV113 ) )
        = $true )
      | ( ( ( set_union2 @ SV19 @ SV113 )
          = SV113 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[675]) ).

thf(801,plain,
    ! [SV161: $i,SV115: $i,SV21: $i] :
      ( ( ~ ( subset @ SV21 @ SV115 )
        | ~ ( subset @ SV21 @ SV161 )
        | ( subset @ SV21 @ ( set_intersection2 @ SV115 @ SV161 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[677]) ).

thf(802,plain,
    ! [SV162: $i,SV116: $i,SV22: $i] :
      ( ( ~ ( subset @ SV22 @ SV116 )
        | ~ ( subset @ SV116 @ SV162 )
        | ( subset @ SV22 @ SV162 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[678]) ).

thf(803,plain,
    ! [SV117: $i,SV23: $i] :
      ( ( ( ~ ( subset @ SV23 @ SV117 ) )
        = $true )
      | ( ( ! [SY502: $i] : ( subset @ ( set_intersection2 @ SV23 @ SY502 ) @ ( set_intersection2 @ SV117 @ SY502 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[679]) ).

thf(804,plain,
    ! [SV118: $i,SV24: $i] :
      ( ( ( ~ ( subset @ SV24 @ SV118 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV24 @ SV118 )
          = SV24 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[680]) ).

thf(805,plain,
    ! [SV119: $i,SV26: $i] :
      ( ( ( ~ ( subset @ SV26 @ SV119 ) )
        = $true )
      | ( ( ! [SY503: $i] : ( subset @ ( set_difference @ SV26 @ SY503 ) @ ( set_difference @ SV119 @ SY503 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[681]) ).

thf(806,plain,
    ! [SV29: $i] :
      ( ( ( subset @ SV29 @ empty_set )
        = $false )
      | ( ( SV29 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[684]) ).

thf(807,plain,
    ! [SV123: $i,SV31: $i] :
      ( ( ( ~ ( subset @ SV31 @ SV123 ) )
        = $true )
      | ( ( SV123
          = ( set_union2 @ SV31 @ ( set_difference @ SV123 @ SV31 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[686]) ).

thf(808,plain,
    ! [SV32: $i,SV124: $i] :
      ( ( ( ~ ( element @ SV124 @ ( powerset @ ( powerset @ SV32 ) ) ) )
        = $true )
      | ( ( ( SV124 = empty_set )
          | ( ( complements_of_subsets @ SV32 @ SV124 )
           != empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[687]) ).

thf(809,plain,
    ! [SV34: $i,SV163: $i] :
      ( ( ( ~ ( element @ SV163 @ ( powerset @ SV34 ) )
          | ! [SY532: $i] :
              ( ~ ( element @ SY532 @ SV34 )
              | ( in @ SY532 @ SV163 )
              | ( in @ SY532 @ ( subset_complement @ SV34 @ SV163 ) ) ) )
        = $true )
      | ( ( SV34 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[689]) ).

thf(810,plain,
    ! [SV126: $i,SV35: $i,SV164: $i] :
      ( ( ~ ( element @ SV164 @ ( powerset @ SV35 ) )
        | ~ ( in @ SV126 @ ( subset_complement @ SV35 @ SV164 ) )
        | ~ ( in @ SV126 @ SV164 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[690]) ).

thf(811,plain,
    ! [SV36: $i,SV127: $i] :
      ( ( ( ~ ( proper_subset @ SV127 @ SV36 ) )
        = $true )
      | ( ( ~ ( subset @ SV36 @ SV127 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[691]) ).

thf(812,plain,
    ! [SV37: $i,SV165: $i,SV128: $i] :
      ( ( ~ ( disjoint @ SV128 @ SV165 )
        | ~ ( subset @ SV37 @ SV128 )
        | ( disjoint @ SV37 @ SV165 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[692]) ).

thf(813,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV39 ) @ ( singleton @ SV129 ) ) )
        = $true )
      | ( ( SV39 = SV129 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[693]) ).

thf(814,plain,
    ! [SV166: $i,SV131: $i,SV41: $i] :
      ( ( ~ ( subset @ SV41 @ SV131 )
        | ~ ( subset @ SV166 @ SV131 )
        | ( subset @ ( set_union2 @ SV41 @ SV166 ) @ SV131 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[695]) ).

thf(815,plain,
    ! [SV132: $i,SV42: $i] :
      ( ( ( ! [SY507: $i] :
              ( ( singleton @ SV42 )
             != ( unordered_pair @ SV132 @ SY507 ) ) )
        = $true )
      | ( ( SV42 = SV132 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[696]) ).

thf(816,plain,
    ! [SV167: $i,SV133: $i,SV44: $i] :
      ( ( ( ( singleton @ SV44 )
         != ( unordered_pair @ SV133 @ SV167 ) )
        | ( SV133 = SV167 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[697]) ).

thf(817,plain,
    ! [SV48: $i,SV137: $i] :
      ( ( ( ~ ( element @ SV137 @ ( powerset @ SV48 ) ) )
        = $true )
      | ( ( ( subset_complement @ SV48 @ SV137 )
          = ( set_difference @ SV48 @ SV137 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[701]) ).

thf(818,plain,
    ! [SV50: $i,SV138: $i] :
      ( ( ( ~ ( element @ SV138 @ ( powerset @ SV50 ) ) )
        = $true )
      | ( ( element @ ( subset_complement @ SV50 @ SV138 ) @ ( powerset @ SV50 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[702]) ).

thf(819,plain,
    ! [SV51: $i,SV139: $i] :
      ( ( ( ~ ( element @ SV139 @ ( powerset @ ( powerset @ SV51 ) ) ) )
        = $true )
      | ( ( element @ ( union_of_subsets @ SV51 @ SV139 ) @ ( powerset @ SV51 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[703]) ).

thf(820,plain,
    ! [SV52: $i,SV140: $i] :
      ( ( ( ~ ( element @ SV140 @ ( powerset @ ( powerset @ SV52 ) ) ) )
        = $true )
      | ( ( element @ ( meet_of_subsets @ SV52 @ SV140 ) @ ( powerset @ SV52 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[704]) ).

thf(821,plain,
    ! [SV168: $i,SV53: $i,SV141: $i] :
      ( ( ~ ( element @ SV141 @ ( powerset @ SV53 ) )
        | ~ ( element @ SV168 @ ( powerset @ SV53 ) )
        | ( element @ ( subset_difference @ SV53 @ SV141 @ SV168 ) @ ( powerset @ SV53 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[705]) ).

thf(822,plain,
    ! [SV54: $i,SV142: $i] :
      ( ( ( ~ ( element @ SV142 @ ( powerset @ ( powerset @ SV54 ) ) ) )
        = $true )
      | ( ( element @ ( complements_of_subsets @ SV54 @ SV142 ) @ ( powerset @ ( powerset @ SV54 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[706]) ).

thf(823,plain,
    ! [SV169: $i,SV58: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV58 @ SV169 ) ) )
        = $true )
      | ( ( empty @ SV58 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[709]) ).

thf(824,plain,
    ! [SV143: $i,SV59: $i] :
      ( ( empty @ ( unordered_pair @ SV59 @ SV143 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[710]) ).

thf(825,plain,
    ! [SV60: $i,SV170: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV170 @ SV60 ) ) )
        = $true )
      | ( ( empty @ SV60 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[711]) ).

thf(826,plain,
    ! [SV63: $i,SV144: $i] :
      ( ( ( ~ ( element @ SV144 @ ( powerset @ SV63 ) ) )
        = $true )
      | ( ( ( subset_complement @ SV63 @ ( subset_complement @ SV63 @ SV144 ) )
          = SV144 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[712]) ).

thf(827,plain,
    ! [SV64: $i,SV145: $i] :
      ( ( ( ~ ( element @ SV145 @ ( powerset @ ( powerset @ SV64 ) ) ) )
        = $true )
      | ( ( ( complements_of_subsets @ SV64 @ ( complements_of_subsets @ SV64 @ SV145 ) )
          = SV145 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[713]) ).

thf(828,plain,
    ! [SV65: $i,SV146: $i] :
      ( ( ( ~ ( element @ SV146 @ ( powerset @ ( powerset @ SV65 ) ) ) )
        = $true )
      | ( ( ( union_of_subsets @ SV65 @ SV146 )
          = ( union @ SV146 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[714]) ).

thf(829,plain,
    ! [SV66: $i,SV147: $i] :
      ( ( ( ~ ( element @ SV147 @ ( powerset @ ( powerset @ SV66 ) ) ) )
        = $true )
      | ( ( ( meet_of_subsets @ SV66 @ SV147 )
          = ( set_meet @ SV147 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[715]) ).

thf(830,plain,
    ! [SV171: $i,SV67: $i,SV148: $i] :
      ( ( ~ ( element @ SV148 @ ( powerset @ SV67 ) )
        | ~ ( element @ SV171 @ ( powerset @ SV67 ) )
        | ( ( subset_difference @ SV67 @ SV148 @ SV171 )
          = ( set_difference @ SV148 @ SV171 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[716]) ).

thf(831,plain,
    ! [SV149: $i,SV69: $i] :
      ( ( ( ~ ( disjoint @ SV69 @ SV149 ) )
        = $true )
      | ( ( disjoint @ SV149 @ SV69 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[717]) ).

thf(832,plain,
    ! [SV74: $i,SV172: $i,SV150: $i] :
      ( ( ~ ( element @ SV150 @ ( powerset @ SV172 ) )
        | ~ ( in @ SV74 @ SV150 )
        | ~ ( empty @ SV172 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[718]) ).

thf(833,plain,
    ! [SV75: $i] :
      ( ( ( empty @ SV75 )
        = $false )
      | ( ( SV75 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[719]) ).

thf(834,plain,
    ! [SV151: $i,SV76: $i] :
      ( ( ( ( SV76 = SV151 )
          | ~ ( empty @ SV76 ) )
        = $true )
      | ( ( ~ ( empty @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[720]) ).

thf(835,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
                  | ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) )
              | ~ ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
                  | ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) ) ) )
        = $true )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[721]) ).

thf(836,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[722]) ).

thf(837,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[723]) ).

thf(838,plain,
    ! [SV78: $i] :
      ( ( ( relation @ SV78 )
        = $false )
      | ( ( ~ ( ~ ! [SY401: $i] :
                    ( ~ ( ~ ( ! [SY402: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ SY402 ) @ SV78 )
                            | ~ ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ ( sK23_SY312 @ SY401 @ SV78 ) ) @ SV78 )
                            | ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) ) )
                    | ( SY401
                      = ( relation_dom @ SV78 ) ) )
              | ~ ! [SY403: $i] :
                    ( ( SY403
                     != ( relation_dom @ SV78 ) )
                    | ~ ( ~ ! [SY404: $i] :
                              ( ! [SY405: $i] :
                                  ~ ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SV78 )
                              | ( in @ SY404 @ SY403 ) )
                        | ~ ! [SY406: $i] :
                              ( ~ ( in @ SY406 @ SY403 )
                              | ( in @ ( ordered_pair @ SY406 @ ( sK21_D @ SY406 @ SY403 @ SV78 ) ) @ SV78 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[724]) ).

thf(839,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK34_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[725]) ).

thf(840,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[726]) ).

thf(841,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY407: $i,SY408: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                            | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                             != SV79 ) )
                        | ~ ( ~ ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                            | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                             != SY407 ) ) )
                  | ~ ( ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                      | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                        = SV79 )
                      | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                        = SY407 ) ) )
              | ( SY408
                = ( unordered_pair @ SV79 @ SY407 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[727]) ).

thf(842,plain,
    ! [SV79: $i] :
      ( ( ~ ! [SY409: $i,SY410: $i] :
              ( ( SY410
               != ( unordered_pair @ SV79 @ SY409 ) )
              | ~ ( ~ ! [SY411: $i] :
                        ( ~ ( in @ SY411 @ SY410 )
                        | ( SY411 = SV79 )
                        | ( SY411 = SY409 ) )
                  | ~ ~ ( ~ ! [SY412: $i] :
                              ( ( SY412 != SV79 )
                              | ( in @ SY412 @ SY410 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY409 )
                              | ( in @ SX3 @ SY410 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[727]) ).

thf(843,plain,
    ! [SV80: $i] :
      ( ( ~ ! [SY414: $i] :
              ( ~ ( subset @ SY414 @ ( sK9_B @ SV80 ) )
              | ( are_equipotent @ SY414 @ ( sK9_B @ SV80 ) )
              | ( in @ SY414 @ ( sK9_B @ SV80 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[728]) ).

thf(844,plain,
    ! [SV80: $i] :
      ( ( ~ ~ ( ~ ! [SY415: $i] :
                    ( ~ ( in @ SY415 @ ( sK9_B @ SV80 ) )
                    | ( in @ ( powerset @ SY415 ) @ ( sK9_B @ SV80 ) ) )
              | ~ ~ ( ~ ! [SY416: $i,SY417: $i] :
                          ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
                          | ~ ( subset @ SY417 @ SY416 )
                          | ( in @ SY417 @ ( sK9_B @ SV80 ) ) )
                    | ~ ( in @ SV80 @ ( sK9_B @ SV80 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[728]) ).

thf(845,plain,
    ! [SV81: $i] :
      ( ( ~ ( element @ ( sK5_B @ SV81 ) @ ( powerset @ SV81 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[729]) ).

thf(846,plain,
    ! [SV81: $i] :
      ( ( ~ ( empty @ ( sK5_B @ SV81 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[729]) ).

thf(847,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[730]) ).

thf(848,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[731]) ).

thf(849,plain,
    ! [SV82: $i] :
      ( ( ~ ! [SY418: $i,SY419: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                            | ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SV82 ) )
                        | ~ ( ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                            | ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY418 ) ) )
                  | ~ ( ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                      | ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SV82 )
                      | ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY418 ) ) )
              | ( SY419
                = ( set_union2 @ SV82 @ SY418 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[732]) ).

thf(850,plain,
    ! [SV82: $i] :
      ( ( ~ ! [SY420: $i,SY421: $i] :
              ( ( SY421
               != ( set_union2 @ SV82 @ SY420 ) )
              | ~ ( ~ ! [SY422: $i] :
                        ( ~ ( in @ SY422 @ SY421 )
                        | ( in @ SY422 @ SV82 )
                        | ( in @ SY422 @ SY420 ) )
                  | ~ ~ ( ~ ! [SY423: $i] :
                              ( ~ ( in @ SY423 @ SV82 )
                              | ( in @ SY423 @ SY421 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY420 )
                              | ( in @ SX3 @ SY421 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[732]) ).

thf(851,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[733]) ).

thf(852,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)],[734]) ).

thf(853,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[735]) ).

thf(854,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)],[736]) ).

thf(855,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ~ ! [SY512: $i,SY513: $i] :
              ( ~ ( in @ SV83 @ SY512 )
              | ~ ( in @ SV153 @ SY513 )
              | ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY512 @ SY513 ) ) )
        | ~ ~ ( ~ ! [SY514: $i] :
                    ( ! [SY515: $i] :
                        ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY514 @ SY515 ) )
                    | ( in @ SV83 @ SY514 ) )
              | ~ ! [SY516: $i,SY517: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY516 @ SY517 ) )
                    | ( in @ SV153 @ SY517 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[737]) ).

thf(856,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY432: $i] :
              ( ~ ( subset @ SY432 @ ( sK10_B @ SV84 ) )
              | ( are_equipotent @ SY432 @ ( sK10_B @ SV84 ) )
              | ( in @ SY432 @ ( sK10_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[738]) ).

thf(857,plain,
    ! [SV84: $i] :
      ( ( ~ ~ ( ~ ! [SY433: $i] :
                    ( ~ ( ~ ! [SY434: $i] :
                              ( ~ ( subset @ SY434 @ SY433 )
                              | ( in @ SY434 @ ( sK11_SY302 @ SY433 @ SV84 ) ) )
                        | ~ ( in @ ( sK11_SY302 @ SY433 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
                    | ~ ( in @ SY433 @ ( sK10_B @ SV84 ) ) )
              | ~ ~ ( ~ ! [SY435: $i,SY436: $i] :
                          ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
                          | ~ ( subset @ SY436 @ SY435 )
                          | ( in @ SY436 @ ( sK10_B @ SV84 ) ) )
                    | ~ ( in @ SV84 @ ( sK10_B @ SV84 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[738]) ).

thf(858,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ! [SX2: $i] :
                      ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX2 )
                      | ~ ( in @ SX2 @ SX0 ) )
                  | ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ ( sK20_SY310 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK20_SY310 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[739]) ).

thf(859,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 @ ( sK18_D @ SX2 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[740]) ).

thf(860,plain,
    ! [SV154: $i,SV85: $i] :
      ( ( ~ ! [SY518: $i] :
              ( ! [SY519: $i] :
                  ( ( ordered_pair @ SV85 @ SV154 )
                 != ( ordered_pair @ SY518 @ SY519 ) )
              | ( SV85 = SY518 ) )
        | ~ ! [SY520: $i,SY521: $i] :
              ( ( ( ordered_pair @ SV85 @ SV154 )
               != ( ordered_pair @ SY520 @ SY521 ) )
              | ( SV154 = SY521 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[741]) ).

thf(861,plain,
    ! [SV86: $i] :
      ( ( ~ ! [SY442: $i] :
              ( ~ ( subset @ SV86 @ SY442 )
              | ! [SY443: $i] : ( subset @ ( cartesian_product2 @ SV86 @ SY443 ) @ ( cartesian_product2 @ SY442 @ SY443 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[742]) ).

thf(862,plain,
    ! [SV86: $i] :
      ( ( ~ ! [SY444: $i] :
              ( ~ ( subset @ SV86 @ SY444 )
              | ! [SY445: $i] : ( subset @ ( cartesian_product2 @ SY445 @ SV86 ) @ ( cartesian_product2 @ SY445 @ SY444 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[742]) ).

thf(863,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[743]) ).

thf(864,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[744]) ).

thf(865,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[745]) ).

thf(866,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[746]) ).

thf(867,plain,
    ! [SV87: $i] :
      ( ( ~ ! [SY446: $i,SY447: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SV87 )
                      | ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY446 )
                      | ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SV87 )
                            | ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) )
                        | ~ ( ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY446 )
                            | ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) ) ) )
              | ( SY447
                = ( set_intersection2 @ SV87 @ SY446 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[747]) ).

thf(868,plain,
    ! [SV87: $i] :
      ( ( ~ ! [SY448: $i,SY449: $i] :
              ( ( SY449
               != ( set_intersection2 @ SV87 @ SY448 ) )
              | ~ ( ~ ! [SY450: $i] :
                        ( ~ ( in @ SY450 @ SV87 )
                        | ~ ( in @ SY450 @ SY448 )
                        | ( in @ SY450 @ SY449 ) )
                  | ~ ~ ( ~ ! [SY451: $i] :
                              ( ~ ( in @ SY451 @ SY449 )
                              | ( in @ SY451 @ SV87 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY449 )
                              | ( in @ SX3 @ SY448 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[747]) ).

thf(869,plain,
    ! [SV88: $i] :
      ( ( ( ~ ( element @ ( sK7_B @ SV88 ) @ ( powerset @ SV88 ) )
          | ~ ~ ( empty @ ( sK7_B @ SV88 ) ) )
        = $false )
      | ( ( empty @ SV88 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[748]) ).

thf(870,plain,
    ! [SV89: $i,SV155: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV89 )
              | ~ ~ ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV155 ) ) )
        = $true )
      | ( ( element @ SV89 @ ( powerset @ SV155 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[749]) ).

thf(871,plain,
    ! [SV90: $i] :
      ( ( ~ ! [SY454: $i,SY455: $i] :
              ( ~ ( in @ SV90 @ SY455 )
              | ~ ( in @ SY454 @ SY455 )
              | ( subset @ ( unordered_pair @ SV90 @ SY454 ) @ SY455 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[750]) ).

thf(872,plain,
    ! [SV90: $i] :
      ( ( ~ ~ ( ~ ! [SY456: $i,SY457: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV90 @ SY456 ) @ SY457 )
                    | ( in @ SV90 @ SY457 ) )
              | ~ ! [SY458: $i,SY459: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV90 @ SY458 ) @ SY459 )
                    | ( in @ SY458 @ SY459 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[750]) ).

thf(873,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[751]) ).

thf(874,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[752]) ).

thf(875,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[753]) ).

thf(876,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[754]) ).

thf(877,plain,
    ( ( empty @ sK13_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[755]) ).

thf(878,plain,
    ( ( relation @ sK13_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[756]) ).

thf(879,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[757]) ).

thf(880,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[758]) ).

thf(881,plain,
    ! [SV91: $i] :
      ( ( ~ ! [SY460: $i,SY461: $i] :
              ( ~ ( ~ ( ! [SY462: $i,SY463: $i] :
                          ( ~ ( in @ SY462 @ SV91 )
                          | ~ ( in @ SY463 @ SY460 )
                          | ( ( sK28_D @ SY461 @ SY460 @ SV91 )
                           != ( ordered_pair @ SY462 @ SY463 ) ) )
                      | ~ ( in @ ( sK28_D @ SY461 @ SY460 @ SV91 ) @ SY461 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY461 @ SY460 @ SV91 ) @ SV91 )
                                | ~ ( in @ ( sK30_SY318 @ SY461 @ SY460 @ SV91 ) @ SY460 ) )
                          | ( ( sK28_D @ SY461 @ SY460 @ SV91 )
                           != ( ordered_pair @ ( sK29_SY316 @ SY461 @ SY460 @ SV91 ) @ ( sK30_SY318 @ SY461 @ SY460 @ SV91 ) ) ) )
                      | ( in @ ( sK28_D @ SY461 @ SY460 @ SV91 ) @ SY461 ) ) )
              | ( SY461
                = ( cartesian_product2 @ SV91 @ SY460 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[759]) ).

thf(882,plain,
    ! [SV91: $i] :
      ( ( ~ ! [SY464: $i,SY465: $i] :
              ( ( SY465
               != ( cartesian_product2 @ SV91 @ SY464 ) )
              | ~ ( ~ ! [SY466: $i] :
                        ( ! [SY467: $i,SY468: $i] :
                            ( ~ ( in @ SY467 @ SV91 )
                            | ~ ( in @ SY468 @ SY464 )
                            | ( SY466
                             != ( ordered_pair @ SY467 @ SY468 ) ) )
                        | ( in @ SY466 @ SY465 ) )
                  | ~ ! [SY469: $i] :
                        ( ~ ( in @ SY469 @ SY465 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY469 @ SY465 @ SY464 @ SV91 ) @ SV91 )
                                  | ~ ( in @ ( sK27_SY313 @ SY469 @ SY465 @ SY464 @ SV91 ) @ SY464 ) )
                            | ( SY469
                             != ( ordered_pair @ ( sK26_E @ SY469 @ SY465 @ SY464 @ SV91 ) @ ( sK27_SY313 @ SY469 @ SY465 @ SY464 @ SV91 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[759]) ).

thf(883,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[760]) ).

thf(884,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[761]) ).

thf(885,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[762]) ).

thf(886,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)],[763]) ).

thf(887,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[764]) ).

thf(888,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[765]) ).

thf(889,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[766]) ).

thf(890,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[767]) ).

thf(891,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)],[768]) ).

thf(892,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)],[769]) ).

thf(893,plain,
    ! [SV92: $i] :
      ( ( ( relation @ SV92 )
        = $false )
      | ( ( ~ ( ~ ! [SY470: $i] :
                    ( ~ ( ~ ( ! [SY471: $i] :
                                ~ ( in @ ( ordered_pair @ SY471 @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                            | ~ ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY470 @ SV92 ) @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                            | ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) ) )
                    | ( SY470
                      = ( relation_rng @ SV92 ) ) )
              | ~ ! [SY472: $i] :
                    ( ( SY472
                     != ( relation_rng @ SV92 ) )
                    | ~ ( ~ ! [SY473: $i] :
                              ( ! [SY474: $i] :
                                  ~ ( in @ ( ordered_pair @ SY474 @ SY473 ) @ SV92 )
                              | ( in @ SY473 @ SY472 ) )
                        | ~ ! [SY475: $i] :
                              ( ~ ( in @ SY475 @ SY472 )
                              | ( in @ ( ordered_pair @ ( sK14_D @ SY475 @ SY472 @ SV92 ) @ SY475 ) @ SV92 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[770]) ).

thf(894,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ~ ! [SY522: $i,SY523: $i] :
              ( ~ ( in @ SV93 @ SY522 )
              | ~ ( in @ SV156 @ SY523 )
              | ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY522 @ SY523 ) ) )
        | ~ ~ ( ~ ! [SY524: $i] :
                    ( ! [SY525: $i] :
                        ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY524 @ SY525 ) )
                    | ( in @ SV93 @ SY524 ) )
              | ~ ! [SY526: $i,SY527: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY526 @ SY527 ) )
                    | ( in @ SV156 @ SY527 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[771]) ).

thf(895,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[772]) ).

thf(896,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)],[773]) ).

thf(897,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                                | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX0 )
                                | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ SX2 @ ( sK36_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)],[774]) ).

thf(898,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)],[775]) ).

thf(899,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK35_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK35_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[776]) ).

thf(900,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)],[777]) ).

thf(901,plain,
    ! [SV94: $i] :
      ( ( ~ ! [SY483: $i,SY484: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SV94 )
                      | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY483 )
                      | ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SV94 )
                            | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) )
                        | ~ ( ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY483 )
                            | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) ) ) )
              | ( SY484
                = ( set_difference @ SV94 @ SY483 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[778]) ).

thf(902,plain,
    ! [SV94: $i] :
      ( ( ~ ! [SY485: $i,SY486: $i] :
              ( ( SY486
               != ( set_difference @ SV94 @ SY485 ) )
              | ~ ( ~ ! [SY487: $i] :
                        ( ~ ( in @ SY487 @ SV94 )
                        | ( in @ SY487 @ SY485 )
                        | ( in @ SY487 @ SY486 ) )
                  | ~ ~ ( ~ ! [SY488: $i] :
                              ( ~ ( in @ SY488 @ SY486 )
                              | ( in @ SY488 @ SV94 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY486 )
                              | ~ ( in @ SX3 @ SY485 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[778]) ).

thf(903,plain,
    ! [SV95: $i,SV157: $i] :
      ( ( ( ~ ( element @ SV157 @ ( powerset @ SV95 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY528: $i] :
                    ( ~ ( element @ SY528 @ ( powerset @ SV95 ) )
                    | ~ ( disjoint @ SV157 @ SY528 )
                    | ( subset @ SV157 @ ( subset_complement @ SV95 @ SY528 ) ) )
              | ~ ! [SY529: $i] :
                    ( ~ ( element @ SY529 @ ( powerset @ SV95 ) )
                    | ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SY529 ) )
                    | ( disjoint @ SV157 @ SY529 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[779]) ).

thf(904,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[780]) ).

thf(905,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[781]) ).

thf(906,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[782]) ).

thf(907,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)],[783]) ).

thf(908,plain,
    ! [SV96: $i,SV1: $i] :
      ( ( ( in @ SV1 @ SV96 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV1 ) @ SV96 )
          = SV96 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[784]) ).

thf(909,plain,
    ! [SV97: $i,SV2: $i] :
      ( ( ( disjoint @ ( singleton @ SV2 ) @ SV97 )
        = $false )
      | ( ( ~ ( in @ SV2 @ SV97 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[785]) ).

thf(910,plain,
    ! [SV4: $i,SV99: $i] :
      ( ( ( element @ SV99 @ ( powerset @ SV4 ) )
        = $false )
      | ( ( ! [SY493: $i] :
              ( ~ ( in @ SY493 @ SV99 )
              | ( in @ SY493 @ SV4 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[787]) ).

thf(911,plain,
    ! [SV100: $i,SV5: $i] :
      ( ( ( in @ SV5 @ SV100 )
        = $false )
      | ( ( subset @ SV5 @ ( union @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[788]) ).

thf(912,plain,
    ! [SV101: $i,SV6: $i] :
      ( ( ( in @ SV6 @ SV101 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV6 ) @ SV101 )
          = SV101 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[789]) ).

thf(913,plain,
    ! [SV102: $i,SV7: $i] :
      ( ( ( in @ SV7 @ SV102 )
        = $false )
      | ( ( subset @ SV7 @ ( union @ SV102 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[790]) ).

thf(914,plain,
    ! [SV103: $i,SV8: $i] :
      ( ( ( in @ SV8 @ SV103 )
        = $false )
      | ( ( ~ ( in @ SV103 @ SV8 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[791]) ).

thf(915,plain,
    ! [SV106: $i,SV11: $i] :
      ( ( ( in @ SV11 @ SV106 )
        = $false )
      | ( ( element @ SV11 @ SV106 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[793]) ).

thf(916,plain,
    ! [SV107: $i,SV12: $i] :
      ( ( ( element @ SV12 @ SV107 )
        = $false )
      | ( ( ( empty @ SV107 )
          | ( in @ SV12 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[794]) ).

thf(917,plain,
    ! [SV13: $i,SV158: $i,SV108: $i] :
      ( ( ( ~ ( element @ SV108 @ ( powerset @ SV158 ) )
          | ~ ( in @ SV13 @ SV108 ) )
        = $true )
      | ( ( element @ SV13 @ SV158 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[795]) ).

thf(918,plain,
    ! [SV14: $i,SV109: $i] :
      ( ( ( empty @ SV109 )
        = $false )
      | ( ( ~ ( in @ SV14 @ SV109 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[796]) ).

thf(919,plain,
    ! [SV110: $i,SV16: $i] :
      ( ( ( subset @ SV16 @ SV110 )
        = $false )
      | ( ( ! [SY495: $i] :
              ( ( in @ SY495 @ SV16 )
              | ( subset @ SV16 @ ( set_difference @ SV110 @ ( singleton @ SY495 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[797]) ).

thf(920,plain,
    ! [SV111: $i,SV159: $i,SV173: $i,SV17: $i] :
      ( ( ( SV17 = SV173 )
        | ( SV17 = SV159 )
        | ( ( unordered_pair @ SV17 @ SV111 )
         != ( unordered_pair @ SV159 @ SV173 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[798]) ).

thf(921,plain,
    ! [SV174: $i,SV160: $i,SV112: $i,SV18: $i] :
      ( ( ~ ( subset @ SV18 @ SV112 )
        | ~ ( subset @ SV160 @ SV174 )
        | ( subset @ ( cartesian_product2 @ SV18 @ SV160 ) @ ( cartesian_product2 @ SV112 @ SV174 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[799]) ).

thf(922,plain,
    ! [SV113: $i,SV19: $i] :
      ( ( ( subset @ SV19 @ SV113 )
        = $false )
      | ( ( ( set_union2 @ SV19 @ SV113 )
          = SV113 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[800]) ).

thf(923,plain,
    ! [SV161: $i,SV115: $i,SV21: $i] :
      ( ( ( ~ ( subset @ SV21 @ SV115 )
          | ~ ( subset @ SV21 @ SV161 ) )
        = $true )
      | ( ( subset @ SV21 @ ( set_intersection2 @ SV115 @ SV161 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[801]) ).

thf(924,plain,
    ! [SV162: $i,SV116: $i,SV22: $i] :
      ( ( ( ~ ( subset @ SV22 @ SV116 )
          | ~ ( subset @ SV116 @ SV162 ) )
        = $true )
      | ( ( subset @ SV22 @ SV162 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[802]) ).

thf(925,plain,
    ! [SV117: $i,SV23: $i] :
      ( ( ( subset @ SV23 @ SV117 )
        = $false )
      | ( ( ! [SY502: $i] : ( subset @ ( set_intersection2 @ SV23 @ SY502 ) @ ( set_intersection2 @ SV117 @ SY502 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[803]) ).

thf(926,plain,
    ! [SV118: $i,SV24: $i] :
      ( ( ( subset @ SV24 @ SV118 )
        = $false )
      | ( ( ( set_intersection2 @ SV24 @ SV118 )
          = SV24 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[804]) ).

thf(927,plain,
    ! [SV119: $i,SV26: $i] :
      ( ( ( subset @ SV26 @ SV119 )
        = $false )
      | ( ( ! [SY503: $i] : ( subset @ ( set_difference @ SV26 @ SY503 ) @ ( set_difference @ SV119 @ SY503 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[805]) ).

thf(928,plain,
    ! [SV123: $i,SV31: $i] :
      ( ( ( subset @ SV31 @ SV123 )
        = $false )
      | ( ( SV123
          = ( set_union2 @ SV31 @ ( set_difference @ SV123 @ SV31 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[807]) ).

thf(929,plain,
    ! [SV32: $i,SV124: $i] :
      ( ( ( element @ SV124 @ ( powerset @ ( powerset @ SV32 ) ) )
        = $false )
      | ( ( ( SV124 = empty_set )
          | ( ( complements_of_subsets @ SV32 @ SV124 )
           != empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[808]) ).

thf(930,plain,
    ! [SV34: $i,SV163: $i] :
      ( ( ( ~ ( element @ SV163 @ ( powerset @ SV34 ) ) )
        = $true )
      | ( ( ! [SY532: $i] :
              ( ~ ( element @ SY532 @ SV34 )
              | ( in @ SY532 @ SV163 )
              | ( in @ SY532 @ ( subset_complement @ SV34 @ SV163 ) ) ) )
        = $true )
      | ( ( SV34 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[809]) ).

thf(931,plain,
    ! [SV126: $i,SV35: $i,SV164: $i] :
      ( ( ( ~ ( element @ SV164 @ ( powerset @ SV35 ) ) )
        = $true )
      | ( ( ~ ( in @ SV126 @ ( subset_complement @ SV35 @ SV164 ) )
          | ~ ( in @ SV126 @ SV164 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[810]) ).

thf(932,plain,
    ! [SV36: $i,SV127: $i] :
      ( ( ( proper_subset @ SV127 @ SV36 )
        = $false )
      | ( ( ~ ( subset @ SV36 @ SV127 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[811]) ).

thf(933,plain,
    ! [SV37: $i,SV165: $i,SV128: $i] :
      ( ( ( ~ ( disjoint @ SV128 @ SV165 )
          | ~ ( subset @ SV37 @ SV128 ) )
        = $true )
      | ( ( disjoint @ SV37 @ SV165 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[812]) ).

thf(934,plain,
    ! [SV129: $i,SV39: $i] :
      ( ( ( subset @ ( singleton @ SV39 ) @ ( singleton @ SV129 ) )
        = $false )
      | ( ( SV39 = SV129 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[813]) ).

thf(935,plain,
    ! [SV166: $i,SV131: $i,SV41: $i] :
      ( ( ( ~ ( subset @ SV41 @ SV131 )
          | ~ ( subset @ SV166 @ SV131 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV41 @ SV166 ) @ SV131 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[814]) ).

thf(936,plain,
    ! [SV175: $i,SV132: $i,SV42: $i] :
      ( ( ( ( ( singleton @ SV42 )
           != ( unordered_pair @ SV132 @ SV175 ) ) )
        = $true )
      | ( ( SV42 = SV132 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[815]) ).

thf(937,plain,
    ! [SV167: $i,SV133: $i,SV44: $i] :
      ( ( ( ( ( singleton @ SV44 )
           != ( unordered_pair @ SV133 @ SV167 ) ) )
        = $true )
      | ( ( SV133 = SV167 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[816]) ).

thf(938,plain,
    ! [SV48: $i,SV137: $i] :
      ( ( ( element @ SV137 @ ( powerset @ SV48 ) )
        = $false )
      | ( ( ( subset_complement @ SV48 @ SV137 )
          = ( set_difference @ SV48 @ SV137 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[817]) ).

thf(939,plain,
    ! [SV50: $i,SV138: $i] :
      ( ( ( element @ SV138 @ ( powerset @ SV50 ) )
        = $false )
      | ( ( element @ ( subset_complement @ SV50 @ SV138 ) @ ( powerset @ SV50 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[818]) ).

thf(940,plain,
    ! [SV51: $i,SV139: $i] :
      ( ( ( element @ SV139 @ ( powerset @ ( powerset @ SV51 ) ) )
        = $false )
      | ( ( element @ ( union_of_subsets @ SV51 @ SV139 ) @ ( powerset @ SV51 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[819]) ).

thf(941,plain,
    ! [SV52: $i,SV140: $i] :
      ( ( ( element @ SV140 @ ( powerset @ ( powerset @ SV52 ) ) )
        = $false )
      | ( ( element @ ( meet_of_subsets @ SV52 @ SV140 ) @ ( powerset @ SV52 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[820]) ).

thf(942,plain,
    ! [SV168: $i,SV53: $i,SV141: $i] :
      ( ( ( ~ ( element @ SV141 @ ( powerset @ SV53 ) )
          | ~ ( element @ SV168 @ ( powerset @ SV53 ) ) )
        = $true )
      | ( ( element @ ( subset_difference @ SV53 @ SV141 @ SV168 ) @ ( powerset @ SV53 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[821]) ).

thf(943,plain,
    ! [SV54: $i,SV142: $i] :
      ( ( ( element @ SV142 @ ( powerset @ ( powerset @ SV54 ) ) )
        = $false )
      | ( ( element @ ( complements_of_subsets @ SV54 @ SV142 ) @ ( powerset @ ( powerset @ SV54 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[822]) ).

thf(944,plain,
    ! [SV169: $i,SV58: $i] :
      ( ( ( empty @ ( set_union2 @ SV58 @ SV169 ) )
        = $false )
      | ( ( empty @ SV58 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[823]) ).

thf(945,plain,
    ! [SV60: $i,SV170: $i] :
      ( ( ( empty @ ( set_union2 @ SV170 @ SV60 ) )
        = $false )
      | ( ( empty @ SV60 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[825]) ).

thf(946,plain,
    ! [SV63: $i,SV144: $i] :
      ( ( ( element @ SV144 @ ( powerset @ SV63 ) )
        = $false )
      | ( ( ( subset_complement @ SV63 @ ( subset_complement @ SV63 @ SV144 ) )
          = SV144 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[826]) ).

thf(947,plain,
    ! [SV64: $i,SV145: $i] :
      ( ( ( element @ SV145 @ ( powerset @ ( powerset @ SV64 ) ) )
        = $false )
      | ( ( ( complements_of_subsets @ SV64 @ ( complements_of_subsets @ SV64 @ SV145 ) )
          = SV145 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[827]) ).

thf(948,plain,
    ! [SV65: $i,SV146: $i] :
      ( ( ( element @ SV146 @ ( powerset @ ( powerset @ SV65 ) ) )
        = $false )
      | ( ( ( union_of_subsets @ SV65 @ SV146 )
          = ( union @ SV146 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[828]) ).

thf(949,plain,
    ! [SV66: $i,SV147: $i] :
      ( ( ( element @ SV147 @ ( powerset @ ( powerset @ SV66 ) ) )
        = $false )
      | ( ( ( meet_of_subsets @ SV66 @ SV147 )
          = ( set_meet @ SV147 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[829]) ).

thf(950,plain,
    ! [SV171: $i,SV67: $i,SV148: $i] :
      ( ( ( ~ ( element @ SV148 @ ( powerset @ SV67 ) )
          | ~ ( element @ SV171 @ ( powerset @ SV67 ) ) )
        = $true )
      | ( ( ( subset_difference @ SV67 @ SV148 @ SV171 )
          = ( set_difference @ SV148 @ SV171 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[830]) ).

thf(951,plain,
    ! [SV149: $i,SV69: $i] :
      ( ( ( disjoint @ SV69 @ SV149 )
        = $false )
      | ( ( disjoint @ SV149 @ SV69 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[831]) ).

thf(952,plain,
    ! [SV74: $i,SV172: $i,SV150: $i] :
      ( ( ( ~ ( element @ SV150 @ ( powerset @ SV172 ) )
          | ~ ( in @ SV74 @ SV150 ) )
        = $true )
      | ( ( ~ ( empty @ SV172 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[832]) ).

thf(953,plain,
    ! [SV151: $i,SV76: $i] :
      ( ( ( SV76 = SV151 )
        = $true )
      | ( ( ~ ( empty @ SV76 ) )
        = $true )
      | ( ( ~ ( empty @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[834]) ).

thf(954,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
              | ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) )
          | ~ ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
              | ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) ) )
        = $false )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[835]) ).

thf(955,plain,
    ! [SV176: $i] :
      ( ( ! [SY533: $i] :
            ( ~ ( in @ SV176 @ SY533 )
            | ( subset @ ( singleton @ SV176 ) @ SY533 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[836]) ).

thf(956,plain,
    ! [SV177: $i] :
      ( ( ! [SY534: $i] :
            ( ~ ( subset @ ( singleton @ SV177 ) @ SY534 )
            | ( in @ SV177 @ SY534 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[837]) ).

thf(957,plain,
    ! [SV78: $i] :
      ( ( ( ~ ! [SY401: $i] :
                ( ~ ( ~ ( ! [SY402: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ SY402 ) @ SV78 )
                        | ~ ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ ( sK23_SY312 @ SY401 @ SV78 ) ) @ SV78 )
                        | ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) ) )
                | ( SY401
                  = ( relation_dom @ SV78 ) ) )
          | ~ ! [SY403: $i] :
                ( ( SY403
                 != ( relation_dom @ SV78 ) )
                | ~ ( ~ ! [SY404: $i] :
                          ( ! [SY405: $i] :
                              ~ ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SV78 )
                          | ( in @ SY404 @ SY403 ) )
                    | ~ ! [SY406: $i] :
                          ( ~ ( in @ SY406 @ SY403 )
                          | ( in @ ( ordered_pair @ SY406 @ ( sK21_D @ SY406 @ SY403 @ SV78 ) ) @ SV78 ) ) ) ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[838]) ).

thf(958,plain,
    ! [SV178: $i] :
      ( ( ( in @ ( sK34_B @ SV178 ) @ SV178 )
        | ( SV178 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[839]) ).

thf(959,plain,
    ! [SV179: $i] :
      ( ( ( SV179 != empty_set )
        | ! [SY535: $i] :
            ~ ( in @ SY535 @ SV179 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[840]) ).

thf(960,plain,
    ! [SV79: $i] :
      ( ( ! [SY407: $i,SY408: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                          | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                           != SV79 ) )
                      | ~ ( ~ ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                          | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                           != SY407 ) ) )
                | ~ ( ( in @ ( sK32_D @ SY408 @ SY407 @ SV79 ) @ SY408 )
                    | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                      = SV79 )
                    | ( ( sK32_D @ SY408 @ SY407 @ SV79 )
                      = SY407 ) ) )
            | ( SY408
              = ( unordered_pair @ SV79 @ SY407 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[841]) ).

thf(961,plain,
    ! [SV79: $i] :
      ( ( ! [SY409: $i,SY410: $i] :
            ( ( SY410
             != ( unordered_pair @ SV79 @ SY409 ) )
            | ~ ( ~ ! [SY411: $i] :
                      ( ~ ( in @ SY411 @ SY410 )
                      | ( SY411 = SV79 )
                      | ( SY411 = SY409 ) )
                | ~ ~ ( ~ ! [SY412: $i] :
                            ( ( SY412 != SV79 )
                            | ( in @ SY412 @ SY410 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY409 )
                            | ( in @ SX3 @ SY410 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[842]) ).

thf(962,plain,
    ! [SV80: $i] :
      ( ( ! [SY414: $i] :
            ( ~ ( subset @ SY414 @ ( sK9_B @ SV80 ) )
            | ( are_equipotent @ SY414 @ ( sK9_B @ SV80 ) )
            | ( in @ SY414 @ ( sK9_B @ SV80 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[843]) ).

thf(963,plain,
    ! [SV80: $i] :
      ( ( ~ ( ~ ! [SY415: $i] :
                  ( ~ ( in @ SY415 @ ( sK9_B @ SV80 ) )
                  | ( in @ ( powerset @ SY415 ) @ ( sK9_B @ SV80 ) ) )
            | ~ ~ ( ~ ! [SY416: $i,SY417: $i] :
                        ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
                        | ~ ( subset @ SY417 @ SY416 )
                        | ( in @ SY417 @ ( sK9_B @ SV80 ) ) )
                  | ~ ( in @ SV80 @ ( sK9_B @ SV80 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[844]) ).

thf(964,plain,
    ! [SV81: $i] :
      ( ( element @ ( sK5_B @ SV81 ) @ ( powerset @ SV81 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[845]) ).

thf(965,plain,
    ! [SV81: $i] :
      ( ( empty @ ( sK5_B @ SV81 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[846]) ).

thf(966,plain,
    ! [SV180: $i] :
      ( ( ! [SY536: $i] :
            ( ~ ( in @ SV180 @ SY536 )
            | ( subset @ ( singleton @ SV180 ) @ SY536 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[847]) ).

thf(967,plain,
    ! [SV181: $i] :
      ( ( ! [SY537: $i] :
            ( ~ ( subset @ ( singleton @ SV181 ) @ SY537 )
            | ( in @ SV181 @ SY537 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[848]) ).

thf(968,plain,
    ! [SV82: $i] :
      ( ( ! [SY418: $i,SY419: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                          | ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SV82 ) )
                      | ~ ( ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                          | ~ ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY418 ) ) )
                | ~ ( ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY419 )
                    | ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SV82 )
                    | ( in @ ( sK31_D @ SY419 @ SY418 @ SV82 ) @ SY418 ) ) )
            | ( SY419
              = ( set_union2 @ SV82 @ SY418 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[849]) ).

thf(969,plain,
    ! [SV82: $i] :
      ( ( ! [SY420: $i,SY421: $i] :
            ( ( SY421
             != ( set_union2 @ SV82 @ SY420 ) )
            | ~ ( ~ ! [SY422: $i] :
                      ( ~ ( in @ SY422 @ SY421 )
                      | ( in @ SY422 @ SV82 )
                      | ( in @ SY422 @ SY420 ) )
                | ~ ~ ( ~ ! [SY423: $i] :
                            ( ~ ( in @ SY423 @ SV82 )
                            | ( in @ SY423 @ SY421 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY420 )
                            | ( in @ SX3 @ SY421 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[850]) ).

thf(970,plain,
    ! [SV182: $i] :
      ( ( ! [SY538: $i] :
            ( ~ ( subset @ SV182 @ SY538 )
            | ~ ( subset @ SY538 @ SV182 )
            | ( SV182 = SY538 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[851]) ).

thf(971,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)],[852]) ).

thf(972,plain,
    ! [SV183: $i] :
      ( ( ! [SY539: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SY539 @ SV183 ) @ SY539 )
                    | ~ ( subset @ ( sK33_C @ SY539 @ SV183 ) @ SV183 ) )
                | ~ ( ( in @ ( sK33_C @ SY539 @ SV183 ) @ SY539 )
                    | ( subset @ ( sK33_C @ SY539 @ SV183 ) @ SV183 ) ) )
            | ( SY539
              = ( powerset @ SV183 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[853]) ).

thf(973,plain,
    ! [SV184: $i] :
      ( ( ! [SY540: $i] :
            ( ( SY540
             != ( powerset @ SV184 ) )
            | ~ ( ~ ! [SY541: $i] :
                      ( ~ ( in @ SY541 @ SY540 )
                      | ( subset @ SY541 @ SV184 ) )
                | ~ ! [SY542: $i] :
                      ( ~ ( subset @ SY542 @ SV184 )
                      | ( in @ SY542 @ SY540 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[854]) ).

thf(974,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ~ ! [SY512: $i,SY513: $i] :
              ( ~ ( in @ SV83 @ SY512 )
              | ~ ( in @ SV153 @ SY513 )
              | ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY512 @ SY513 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[855]) ).

thf(975,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ~ ~ ( ~ ! [SY514: $i] :
                    ( ! [SY515: $i] :
                        ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY514 @ SY515 ) )
                    | ( in @ SV83 @ SY514 ) )
              | ~ ! [SY516: $i,SY517: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY516 @ SY517 ) )
                    | ( in @ SV153 @ SY517 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[855]) ).

thf(976,plain,
    ! [SV84: $i] :
      ( ( ! [SY432: $i] :
            ( ~ ( subset @ SY432 @ ( sK10_B @ SV84 ) )
            | ( are_equipotent @ SY432 @ ( sK10_B @ SV84 ) )
            | ( in @ SY432 @ ( sK10_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[856]) ).

thf(977,plain,
    ! [SV84: $i] :
      ( ( ~ ( ~ ! [SY433: $i] :
                  ( ~ ( ~ ! [SY434: $i] :
                            ( ~ ( subset @ SY434 @ SY433 )
                            | ( in @ SY434 @ ( sK11_SY302 @ SY433 @ SV84 ) ) )
                      | ~ ( in @ ( sK11_SY302 @ SY433 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
                  | ~ ( in @ SY433 @ ( sK10_B @ SV84 ) ) )
            | ~ ~ ( ~ ! [SY435: $i,SY436: $i] :
                        ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
                        | ~ ( subset @ SY436 @ SY435 )
                        | ( in @ SY436 @ ( sK10_B @ SV84 ) ) )
                  | ~ ( in @ SV84 @ ( sK10_B @ SV84 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[857]) ).

thf(978,plain,
    ! [SV185: $i] :
      ( ( ! [SY543: $i] :
            ( ~ ( ~ ( ! [SY544: $i] :
                        ( ~ ( in @ ( sK19_C @ SY543 @ SV185 ) @ SY544 )
                        | ~ ( in @ SY544 @ SV185 ) )
                    | ~ ( in @ ( sK19_C @ SY543 @ SV185 ) @ SY543 ) )
                | ~ ( ~ ( ~ ( in @ ( sK19_C @ SY543 @ SV185 ) @ ( sK20_SY310 @ SY543 @ SV185 ) )
                        | ~ ( in @ ( sK20_SY310 @ SY543 @ SV185 ) @ SV185 ) )
                    | ( in @ ( sK19_C @ SY543 @ SV185 ) @ SY543 ) ) )
            | ( SY543
              = ( union @ SV185 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[858]) ).

thf(979,plain,
    ! [SV186: $i] :
      ( ( ! [SY545: $i] :
            ( ( SY545
             != ( union @ SV186 ) )
            | ~ ( ~ ! [SY546: $i] :
                      ( ! [SY547: $i] :
                          ( ~ ( in @ SY546 @ SY547 )
                          | ~ ( in @ SY547 @ SV186 ) )
                      | ( in @ SY546 @ SY545 ) )
                | ~ ! [SY548: $i] :
                      ( ~ ( in @ SY548 @ SY545 )
                      | ~ ( ~ ( in @ SY548 @ ( sK18_D @ SY548 @ SY545 @ SV186 ) )
                          | ~ ( in @ ( sK18_D @ SY548 @ SY545 @ SV186 ) @ SV186 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[859]) ).

thf(980,plain,
    ! [SV154: $i,SV85: $i] :
      ( ( ~ ! [SY518: $i] :
              ( ! [SY519: $i] :
                  ( ( ordered_pair @ SV85 @ SV154 )
                 != ( ordered_pair @ SY518 @ SY519 ) )
              | ( SV85 = SY518 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[860]) ).

thf(981,plain,
    ! [SV154: $i,SV85: $i] :
      ( ( ~ ! [SY520: $i,SY521: $i] :
              ( ( ( ordered_pair @ SV85 @ SV154 )
               != ( ordered_pair @ SY520 @ SY521 ) )
              | ( SV154 = SY521 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[860]) ).

thf(982,plain,
    ! [SV86: $i] :
      ( ( ! [SY442: $i] :
            ( ~ ( subset @ SV86 @ SY442 )
            | ! [SY443: $i] : ( subset @ ( cartesian_product2 @ SV86 @ SY443 ) @ ( cartesian_product2 @ SY442 @ SY443 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[861]) ).

thf(983,plain,
    ! [SV86: $i] :
      ( ( ! [SY444: $i] :
            ( ~ ( subset @ SV86 @ SY444 )
            | ! [SY445: $i] : ( subset @ ( cartesian_product2 @ SY445 @ SV86 ) @ ( cartesian_product2 @ SY445 @ SY444 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[862]) ).

thf(984,plain,
    ! [SV187: $i] :
      ( ( ! [SY549: $i] :
            ( ( ( set_difference @ SV187 @ SY549 )
             != SV187 )
            | ( disjoint @ SV187 @ SY549 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[863]) ).

thf(985,plain,
    ! [SV188: $i] :
      ( ( ! [SY550: $i] :
            ( ~ ( disjoint @ SV188 @ SY550 )
            | ( ( set_difference @ SV188 @ SY550 )
              = SV188 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[864]) ).

thf(986,plain,
    ! [SV189: $i] :
      ( ( ! [SY551: $i] :
            ( ~ ( element @ SV189 @ ( powerset @ SY551 ) )
            | ( subset @ SV189 @ SY551 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[865]) ).

thf(987,plain,
    ! [SV190: $i] :
      ( ( ! [SY552: $i] :
            ( ~ ( subset @ SV190 @ SY552 )
            | ( element @ SV190 @ ( powerset @ SY552 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[866]) ).

thf(988,plain,
    ! [SV87: $i] :
      ( ( ! [SY446: $i,SY447: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SV87 )
                    | ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY446 )
                    | ~ ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) )
                | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SV87 )
                          | ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) )
                      | ~ ( ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY446 )
                          | ( in @ ( sK24_D @ SY447 @ SY446 @ SV87 ) @ SY447 ) ) ) )
            | ( SY447
              = ( set_intersection2 @ SV87 @ SY446 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[867]) ).

thf(989,plain,
    ! [SV87: $i] :
      ( ( ! [SY448: $i,SY449: $i] :
            ( ( SY449
             != ( set_intersection2 @ SV87 @ SY448 ) )
            | ~ ( ~ ! [SY450: $i] :
                      ( ~ ( in @ SY450 @ SV87 )
                      | ~ ( in @ SY450 @ SY448 )
                      | ( in @ SY450 @ SY449 ) )
                | ~ ~ ( ~ ! [SY451: $i] :
                            ( ~ ( in @ SY451 @ SY449 )
                            | ( in @ SY451 @ SV87 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY449 )
                            | ( in @ SX3 @ SY448 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[868]) ).

thf(990,plain,
    ! [SV88: $i] :
      ( ( ( ~ ( element @ ( sK7_B @ SV88 ) @ ( powerset @ SV88 ) ) )
        = $false )
      | ( ( empty @ SV88 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[869]) ).

thf(991,plain,
    ! [SV88: $i] :
      ( ( ( ~ ~ ( empty @ ( sK7_B @ SV88 ) ) )
        = $false )
      | ( ( empty @ SV88 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[869]) ).

thf(992,plain,
    ! [SV89: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV89 )
          | ~ ~ ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV155 ) )
        = $false )
      | ( ( element @ SV89 @ ( powerset @ SV155 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[870]) ).

thf(993,plain,
    ! [SV90: $i] :
      ( ( ! [SY454: $i,SY455: $i] :
            ( ~ ( in @ SV90 @ SY455 )
            | ~ ( in @ SY454 @ SY455 )
            | ( subset @ ( unordered_pair @ SV90 @ SY454 ) @ SY455 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[871]) ).

thf(994,plain,
    ! [SV90: $i] :
      ( ( ~ ( ~ ! [SY456: $i,SY457: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV90 @ SY456 ) @ SY457 )
                  | ( in @ SV90 @ SY457 ) )
            | ~ ! [SY458: $i,SY459: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV90 @ SY458 ) @ SY459 )
                  | ( in @ SY458 @ SY459 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[872]) ).

thf(995,plain,
    ! [SV191: $i] :
      ( ( ! [SY553: $i] :
            ( ( ( set_difference @ SV191 @ ( singleton @ SY553 ) )
             != SV191 )
            | ~ ( in @ SY553 @ SV191 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[873]) ).

thf(996,plain,
    ! [SV192: $i] :
      ( ( ! [SY554: $i] :
            ( ( in @ SY554 @ SV192 )
            | ( ( set_difference @ SV192 @ ( singleton @ SY554 ) )
              = SV192 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[874]) ).

thf(997,plain,
    ! [SV193: $i] :
      ( ( ! [SY555: $i] :
            ( ( ( set_difference @ SV193 @ SY555 )
             != empty_set )
            | ( subset @ SV193 @ SY555 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[875]) ).

thf(998,plain,
    ! [SV194: $i] :
      ( ( ! [SY556: $i] :
            ( ~ ( subset @ SV194 @ SY556 )
            | ( ( set_difference @ SV194 @ SY556 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[876]) ).

thf(999,plain,
    ! [SV195: $i] :
      ( ( ! [SY557: $i] :
            ( ~ ( ~ ( in @ ( sK25_C @ SY557 @ SV195 ) @ SV195 )
                | ~ ~ ( in @ ( sK25_C @ SY557 @ SV195 ) @ SY557 ) )
            | ( subset @ SV195 @ SY557 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[879]) ).

thf(1000,plain,
    ! [SV196: $i] :
      ( ( ! [SY558: $i] :
            ( ~ ( subset @ SV196 @ SY558 )
            | ! [SY559: $i] :
                ( ~ ( in @ SY559 @ SV196 )
                | ( in @ SY559 @ SY558 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[880]) ).

thf(1001,plain,
    ! [SV91: $i] :
      ( ( ! [SY460: $i,SY461: $i] :
            ( ~ ( ~ ( ! [SY462: $i,SY463: $i] :
                        ( ~ ( in @ SY462 @ SV91 )
                        | ~ ( in @ SY463 @ SY460 )
                        | ( ( sK28_D @ SY461 @ SY460 @ SV91 )
                         != ( ordered_pair @ SY462 @ SY463 ) ) )
                    | ~ ( in @ ( sK28_D @ SY461 @ SY460 @ SV91 ) @ SY461 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY461 @ SY460 @ SV91 ) @ SV91 )
                              | ~ ( in @ ( sK30_SY318 @ SY461 @ SY460 @ SV91 ) @ SY460 ) )
                        | ( ( sK28_D @ SY461 @ SY460 @ SV91 )
                         != ( ordered_pair @ ( sK29_SY316 @ SY461 @ SY460 @ SV91 ) @ ( sK30_SY318 @ SY461 @ SY460 @ SV91 ) ) ) )
                    | ( in @ ( sK28_D @ SY461 @ SY460 @ SV91 ) @ SY461 ) ) )
            | ( SY461
              = ( cartesian_product2 @ SV91 @ SY460 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[881]) ).

thf(1002,plain,
    ! [SV91: $i] :
      ( ( ! [SY464: $i,SY465: $i] :
            ( ( SY465
             != ( cartesian_product2 @ SV91 @ SY464 ) )
            | ~ ( ~ ! [SY466: $i] :
                      ( ! [SY467: $i,SY468: $i] :
                          ( ~ ( in @ SY467 @ SV91 )
                          | ~ ( in @ SY468 @ SY464 )
                          | ( SY466
                           != ( ordered_pair @ SY467 @ SY468 ) ) )
                      | ( in @ SY466 @ SY465 ) )
                | ~ ! [SY469: $i] :
                      ( ~ ( in @ SY469 @ SY465 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY469 @ SY465 @ SY464 @ SV91 ) @ SV91 )
                                | ~ ( in @ ( sK27_SY313 @ SY469 @ SY465 @ SY464 @ SV91 ) @ SY464 ) )
                          | ( SY469
                           != ( ordered_pair @ ( sK26_E @ SY469 @ SY465 @ SY464 @ SV91 ) @ ( sK27_SY313 @ SY469 @ SY465 @ SY464 @ SV91 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[882]) ).

thf(1003,plain,
    ! [SV197: $i] :
      ( ( ! [SY560: $i] :
            ( ( disjoint @ SV197 @ SY560 )
            | ( in @ ( sK39_C @ SY560 @ SV197 ) @ ( set_intersection2 @ SV197 @ SY560 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[883]) ).

thf(1004,plain,
    ! [SV198: $i] :
      ( ( ! [SY561: $i] :
            ( ! [SY562: $i] :
                ~ ( in @ SY562 @ ( set_intersection2 @ SV198 @ SY561 ) )
            | ~ ( disjoint @ SV198 @ SY561 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[884]) ).

thf(1005,plain,
    ! [SV199: $i] :
      ( ( ! [SY563: $i] :
            ( ~ ( subset @ SV199 @ ( singleton @ SY563 ) )
            | ( SV199 = empty_set )
            | ( SV199
              = ( singleton @ SY563 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[885]) ).

thf(1006,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)],[886]) ).

thf(1007,plain,
    ! [SV200: $i] :
      ( ( ! [SY564: $i] :
            ( ( ( set_intersection2 @ SV200 @ SY564 )
             != empty_set )
            | ( disjoint @ SV200 @ SY564 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[887]) ).

thf(1008,plain,
    ! [SV201: $i] :
      ( ( ! [SY565: $i] :
            ( ~ ( disjoint @ SV201 @ SY565 )
            | ( ( set_intersection2 @ SV201 @ SY565 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[888]) ).

thf(1009,plain,
    ! [SV202: $i] :
      ( ( ! [SY566: $i] :
            ( ( ( set_difference @ SV202 @ SY566 )
             != empty_set )
            | ( subset @ SV202 @ SY566 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[889]) ).

thf(1010,plain,
    ! [SV203: $i] :
      ( ( ! [SY567: $i] :
            ( ~ ( subset @ SV203 @ SY567 )
            | ( ( set_difference @ SV203 @ SY567 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[890]) ).

thf(1011,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)],[891]) ).

thf(1012,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)],[892]) ).

thf(1013,plain,
    ! [SV92: $i] :
      ( ( ( ~ ! [SY470: $i] :
                ( ~ ( ~ ( ! [SY471: $i] :
                            ~ ( in @ ( ordered_pair @ SY471 @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                        | ~ ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY470 @ SV92 ) @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                        | ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) ) )
                | ( SY470
                  = ( relation_rng @ SV92 ) ) )
          | ~ ! [SY472: $i] :
                ( ( SY472
                 != ( relation_rng @ SV92 ) )
                | ~ ( ~ ! [SY473: $i] :
                          ( ! [SY474: $i] :
                              ~ ( in @ ( ordered_pair @ SY474 @ SY473 ) @ SV92 )
                          | ( in @ SY473 @ SY472 ) )
                    | ~ ! [SY475: $i] :
                          ( ~ ( in @ SY475 @ SY472 )
                          | ( in @ ( ordered_pair @ ( sK14_D @ SY475 @ SY472 @ SV92 ) @ SY475 ) @ SV92 ) ) ) ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[893]) ).

thf(1014,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ~ ! [SY522: $i,SY523: $i] :
              ( ~ ( in @ SV93 @ SY522 )
              | ~ ( in @ SV156 @ SY523 )
              | ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY522 @ SY523 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[894]) ).

thf(1015,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ~ ~ ( ~ ! [SY524: $i] :
                    ( ! [SY525: $i] :
                        ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY524 @ SY525 ) )
                    | ( in @ SV93 @ SY524 ) )
              | ~ ! [SY526: $i,SY527: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY526 @ SY527 ) )
                    | ( in @ SV156 @ SY527 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[894]) ).

thf(1016,plain,
    ! [SV204: $i] :
      ( ( ! [SY568: $i] :
            ( ~ ( subset @ SV204 @ ( singleton @ SY568 ) )
            | ( SV204 = empty_set )
            | ( SV204
              = ( singleton @ SY568 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[895]) ).

thf(1017,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)],[896]) ).

thf(1018,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK36_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)],[897]) ).

thf(1019,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)],[898]) ).

thf(1020,plain,
    ! [SV205: $i] :
      ( ( ! [SY569: $i] :
            ( ~ ( ~ ( ( ( sK35_C @ SY569 @ SV205 )
                     != SV205 )
                    | ~ ( in @ ( sK35_C @ SY569 @ SV205 ) @ SY569 ) )
                | ~ ( ( ( sK35_C @ SY569 @ SV205 )
                      = SV205 )
                    | ( in @ ( sK35_C @ SY569 @ SV205 ) @ SY569 ) ) )
            | ( SY569
              = ( singleton @ SV205 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[899]) ).

thf(1021,plain,
    ! [SV206: $i] :
      ( ( ! [SY570: $i] :
            ( ( SY570
             != ( singleton @ SV206 ) )
            | ~ ( ~ ! [SY571: $i] :
                      ( ( SY571 != SV206 )
                      | ( in @ SY571 @ SY570 ) )
                | ~ ! [SY572: $i] :
                      ( ~ ( in @ SY572 @ SY570 )
                      | ( SY572 = SV206 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[900]) ).

thf(1022,plain,
    ! [SV94: $i] :
      ( ( ! [SY483: $i,SY484: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SV94 )
                    | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY483 )
                    | ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) )
                | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SV94 )
                          | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) )
                      | ~ ( ~ ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY483 )
                          | ( in @ ( sK17_D @ SY484 @ SY483 @ SV94 ) @ SY484 ) ) ) )
            | ( SY484
              = ( set_difference @ SV94 @ SY483 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[901]) ).

thf(1023,plain,
    ! [SV94: $i] :
      ( ( ! [SY485: $i,SY486: $i] :
            ( ( SY486
             != ( set_difference @ SV94 @ SY485 ) )
            | ~ ( ~ ! [SY487: $i] :
                      ( ~ ( in @ SY487 @ SV94 )
                      | ( in @ SY487 @ SY485 )
                      | ( in @ SY487 @ SY486 ) )
                | ~ ~ ( ~ ! [SY488: $i] :
                            ( ~ ( in @ SY488 @ SY486 )
                            | ( in @ SY488 @ SV94 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY486 )
                            | ~ ( in @ SX3 @ SY485 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[902]) ).

thf(1024,plain,
    ! [SV95: $i,SV157: $i] :
      ( ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY528: $i] :
                    ( ~ ( element @ SY528 @ ( powerset @ SV95 ) )
                    | ~ ( disjoint @ SV157 @ SY528 )
                    | ( subset @ SV157 @ ( subset_complement @ SV95 @ SY528 ) ) )
              | ~ ! [SY529: $i] :
                    ( ~ ( element @ SY529 @ ( powerset @ SV95 ) )
                    | ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SY529 ) )
                    | ( disjoint @ SV157 @ SY529 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[903]) ).

thf(1025,plain,
    ! [SV207: $i] :
      ( ( ! [SY573: $i] :
            ( ( disjoint @ SV207 @ SY573 )
            | ~ ( ~ ( in @ ( sK40_C @ SY573 @ SV207 ) @ SV207 )
                | ~ ( in @ ( sK40_C @ SY573 @ SV207 ) @ SY573 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[904]) ).

thf(1026,plain,
    ! [SV208: $i] :
      ( ( ! [SY574: $i] :
            ( ! [SY575: $i] :
                ( ~ ( in @ SY575 @ SV208 )
                | ~ ( in @ SY575 @ SY574 ) )
            | ~ ( disjoint @ SV208 @ SY574 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[905]) ).

thf(1027,plain,
    ! [SV209: $i] :
      ( ( ! [SY576: $i] :
            ( ( SV209 = SY576 )
            | ~ ( subset @ SV209 @ SY576 )
            | ( proper_subset @ SV209 @ SY576 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[906]) ).

thf(1028,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)],[907]) ).

thf(1029,plain,
    ! [SV97: $i,SV2: $i] :
      ( ( ( in @ SV2 @ SV97 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV2 ) @ SV97 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[909]) ).

thf(1030,plain,
    ! [SV4: $i,SV99: $i,SV210: $i] :
      ( ( ( ~ ( in @ SV210 @ SV99 )
          | ( in @ SV210 @ SV4 ) )
        = $true )
      | ( ( element @ SV99 @ ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[910]) ).

thf(1031,plain,
    ! [SV8: $i,SV103: $i] :
      ( ( ( in @ SV103 @ SV8 )
        = $false )
      | ( ( in @ SV8 @ SV103 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[914]) ).

thf(1032,plain,
    ! [SV12: $i,SV107: $i] :
      ( ( ( empty @ SV107 )
        = $true )
      | ( ( in @ SV12 @ SV107 )
        = $true )
      | ( ( element @ SV12 @ SV107 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[916]) ).

thf(1033,plain,
    ! [SV13: $i,SV158: $i,SV108: $i] :
      ( ( ( ~ ( element @ SV108 @ ( powerset @ SV158 ) ) )
        = $true )
      | ( ( ~ ( in @ SV13 @ SV108 ) )
        = $true )
      | ( ( element @ SV13 @ SV158 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[917]) ).

thf(1034,plain,
    ! [SV109: $i,SV14: $i] :
      ( ( ( in @ SV14 @ SV109 )
        = $false )
      | ( ( empty @ SV109 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[918]) ).

thf(1035,plain,
    ! [SV110: $i,SV16: $i,SV211: $i] :
      ( ( ( ( in @ SV211 @ SV16 )
          | ( subset @ SV16 @ ( set_difference @ SV110 @ ( singleton @ SV211 ) ) ) )
        = $true )
      | ( ( subset @ SV16 @ SV110 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[919]) ).

thf(1036,plain,
    ! [SV111: $i,SV159: $i,SV173: $i,SV17: $i] :
      ( ( ( SV17 = SV173 )
        = $true )
      | ( ( ( SV17 = SV159 )
          | ( ( unordered_pair @ SV17 @ SV111 )
           != ( unordered_pair @ SV159 @ SV173 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[920]) ).

thf(1037,plain,
    ! [SV174: $i,SV160: $i,SV112: $i,SV18: $i] :
      ( ( ( ~ ( subset @ SV18 @ SV112 )
          | ~ ( subset @ SV160 @ SV174 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV18 @ SV160 ) @ ( cartesian_product2 @ SV112 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[921]) ).

thf(1038,plain,
    ! [SV161: $i,SV115: $i,SV21: $i] :
      ( ( ( ~ ( subset @ SV21 @ SV115 ) )
        = $true )
      | ( ( ~ ( subset @ SV21 @ SV161 ) )
        = $true )
      | ( ( subset @ SV21 @ ( set_intersection2 @ SV115 @ SV161 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[923]) ).

thf(1039,plain,
    ! [SV162: $i,SV116: $i,SV22: $i] :
      ( ( ( ~ ( subset @ SV22 @ SV116 ) )
        = $true )
      | ( ( ~ ( subset @ SV116 @ SV162 ) )
        = $true )
      | ( ( subset @ SV22 @ SV162 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[924]) ).

thf(1040,plain,
    ! [SV117: $i,SV212: $i,SV23: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV23 @ SV212 ) @ ( set_intersection2 @ SV117 @ SV212 ) )
        = $true )
      | ( ( subset @ SV23 @ SV117 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[925]) ).

thf(1041,plain,
    ! [SV119: $i,SV213: $i,SV26: $i] :
      ( ( ( subset @ ( set_difference @ SV26 @ SV213 ) @ ( set_difference @ SV119 @ SV213 ) )
        = $true )
      | ( ( subset @ SV26 @ SV119 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[927]) ).

thf(1042,plain,
    ! [SV32: $i,SV124: $i] :
      ( ( ( SV124 = empty_set )
        = $true )
      | ( ( ( ( complements_of_subsets @ SV32 @ SV124 )
           != empty_set ) )
        = $true )
      | ( ( element @ SV124 @ ( powerset @ ( powerset @ SV32 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[929]) ).

thf(1043,plain,
    ! [SV34: $i,SV163: $i] :
      ( ( ( element @ SV163 @ ( powerset @ SV34 ) )
        = $false )
      | ( ( ! [SY532: $i] :
              ( ~ ( element @ SY532 @ SV34 )
              | ( in @ SY532 @ SV163 )
              | ( in @ SY532 @ ( subset_complement @ SV34 @ SV163 ) ) ) )
        = $true )
      | ( ( SV34 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[930]) ).

thf(1044,plain,
    ! [SV126: $i,SV35: $i,SV164: $i] :
      ( ( ( element @ SV164 @ ( powerset @ SV35 ) )
        = $false )
      | ( ( ~ ( in @ SV126 @ ( subset_complement @ SV35 @ SV164 ) )
          | ~ ( in @ SV126 @ SV164 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[931]) ).

thf(1045,plain,
    ! [SV127: $i,SV36: $i] :
      ( ( ( subset @ SV36 @ SV127 )
        = $false )
      | ( ( proper_subset @ SV127 @ SV36 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[932]) ).

thf(1046,plain,
    ! [SV37: $i,SV165: $i,SV128: $i] :
      ( ( ( ~ ( disjoint @ SV128 @ SV165 ) )
        = $true )
      | ( ( ~ ( subset @ SV37 @ SV128 ) )
        = $true )
      | ( ( disjoint @ SV37 @ SV165 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[933]) ).

thf(1047,plain,
    ! [SV166: $i,SV131: $i,SV41: $i] :
      ( ( ( ~ ( subset @ SV41 @ SV131 ) )
        = $true )
      | ( ( ~ ( subset @ SV166 @ SV131 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV41 @ SV166 ) @ SV131 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[935]) ).

thf(1048,plain,
    ! [SV175: $i,SV132: $i,SV42: $i] :
      ( ( ( ( singleton @ SV42 )
          = ( unordered_pair @ SV132 @ SV175 ) )
        = $false )
      | ( ( SV42 = SV132 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[936]) ).

thf(1049,plain,
    ! [SV167: $i,SV133: $i,SV44: $i] :
      ( ( ( ( singleton @ SV44 )
          = ( unordered_pair @ SV133 @ SV167 ) )
        = $false )
      | ( ( SV133 = SV167 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[937]) ).

thf(1050,plain,
    ! [SV168: $i,SV53: $i,SV141: $i] :
      ( ( ( ~ ( element @ SV141 @ ( powerset @ SV53 ) ) )
        = $true )
      | ( ( ~ ( element @ SV168 @ ( powerset @ SV53 ) ) )
        = $true )
      | ( ( element @ ( subset_difference @ SV53 @ SV141 @ SV168 ) @ ( powerset @ SV53 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[942]) ).

thf(1051,plain,
    ! [SV171: $i,SV67: $i,SV148: $i] :
      ( ( ( ~ ( element @ SV148 @ ( powerset @ SV67 ) ) )
        = $true )
      | ( ( ~ ( element @ SV171 @ ( powerset @ SV67 ) ) )
        = $true )
      | ( ( ( subset_difference @ SV67 @ SV148 @ SV171 )
          = ( set_difference @ SV148 @ SV171 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[950]) ).

thf(1052,plain,
    ! [SV74: $i,SV172: $i,SV150: $i] :
      ( ( ( ~ ( element @ SV150 @ ( powerset @ SV172 ) ) )
        = $true )
      | ( ( ~ ( in @ SV74 @ SV150 ) )
        = $true )
      | ( ( ~ ( empty @ SV172 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[952]) ).

thf(1053,plain,
    ! [SV151: $i,SV76: $i] :
      ( ( ( empty @ SV76 )
        = $false )
      | ( ( SV76 = SV151 )
        = $true )
      | ( ( ~ ( empty @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[953]) ).

thf(1054,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
              | ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) ) )
        = $false )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[954]) ).

thf(1055,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( ~ ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
              | ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) ) )
        = $false )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[954]) ).

thf(1056,plain,
    ! [SV214: $i,SV176: $i] :
      ( ( ~ ( in @ SV176 @ SV214 )
        | ( subset @ ( singleton @ SV176 ) @ SV214 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[955]) ).

thf(1057,plain,
    ! [SV215: $i,SV177: $i] :
      ( ( ~ ( subset @ ( singleton @ SV177 ) @ SV215 )
        | ( in @ SV177 @ SV215 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[956]) ).

thf(1058,plain,
    ! [SV78: $i] :
      ( ( ( ~ ! [SY401: $i] :
                ( ~ ( ~ ( ! [SY402: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ SY402 ) @ SV78 )
                        | ~ ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ ( sK23_SY312 @ SY401 @ SV78 ) ) @ SV78 )
                        | ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) ) )
                | ( SY401
                  = ( relation_dom @ SV78 ) ) ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[957]) ).

thf(1059,plain,
    ! [SV78: $i] :
      ( ( ( ~ ! [SY403: $i] :
                ( ( SY403
                 != ( relation_dom @ SV78 ) )
                | ~ ( ~ ! [SY404: $i] :
                          ( ! [SY405: $i] :
                              ~ ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SV78 )
                          | ( in @ SY404 @ SY403 ) )
                    | ~ ! [SY406: $i] :
                          ( ~ ( in @ SY406 @ SY403 )
                          | ( in @ ( ordered_pair @ SY406 @ ( sK21_D @ SY406 @ SY403 @ SV78 ) ) @ SV78 ) ) ) ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[957]) ).

thf(1060,plain,
    ! [SV178: $i] :
      ( ( ( in @ ( sK34_B @ SV178 ) @ SV178 )
        = $true )
      | ( ( SV178 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[958]) ).

thf(1061,plain,
    ! [SV179: $i] :
      ( ( ( ( SV179 != empty_set ) )
        = $true )
      | ( ( ! [SY535: $i] :
              ~ ( in @ SY535 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[959]) ).

thf(1062,plain,
    ! [SV79: $i,SV216: $i] :
      ( ( ! [SY577: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY577 @ SV216 @ SV79 ) @ SY577 )
                          | ( ( sK32_D @ SY577 @ SV216 @ SV79 )
                           != SV79 ) )
                      | ~ ( ~ ( in @ ( sK32_D @ SY577 @ SV216 @ SV79 ) @ SY577 )
                          | ( ( sK32_D @ SY577 @ SV216 @ SV79 )
                           != SV216 ) ) )
                | ~ ( ( in @ ( sK32_D @ SY577 @ SV216 @ SV79 ) @ SY577 )
                    | ( ( sK32_D @ SY577 @ SV216 @ SV79 )
                      = SV79 )
                    | ( ( sK32_D @ SY577 @ SV216 @ SV79 )
                      = SV216 ) ) )
            | ( SY577
              = ( unordered_pair @ SV79 @ SV216 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[960]) ).

thf(1063,plain,
    ! [SV217: $i,SV79: $i] :
      ( ( ! [SY578: $i] :
            ( ( SY578
             != ( unordered_pair @ SV79 @ SV217 ) )
            | ~ ( ~ ! [SY579: $i] :
                      ( ~ ( in @ SY579 @ SY578 )
                      | ( SY579 = SV79 )
                      | ( SY579 = SV217 ) )
                | ~ ~ ( ~ ! [SY412: $i] :
                            ( ( SY412 != SV79 )
                            | ( in @ SY412 @ SY578 ) )
                      | ~ ! [SY581: $i] :
                            ( ( SY581 != SV217 )
                            | ( in @ SY581 @ SY578 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[961]) ).

thf(1064,plain,
    ! [SV80: $i,SV218: $i] :
      ( ( ~ ( subset @ SV218 @ ( sK9_B @ SV80 ) )
        | ( are_equipotent @ SV218 @ ( sK9_B @ SV80 ) )
        | ( in @ SV218 @ ( sK9_B @ SV80 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[962]) ).

thf(1065,plain,
    ! [SV80: $i] :
      ( ( ~ ! [SY415: $i] :
              ( ~ ( in @ SY415 @ ( sK9_B @ SV80 ) )
              | ( in @ ( powerset @ SY415 ) @ ( sK9_B @ SV80 ) ) )
        | ~ ~ ( ~ ! [SY416: $i,SY417: $i] :
                    ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
                    | ~ ( subset @ SY417 @ SY416 )
                    | ( in @ SY417 @ ( sK9_B @ SV80 ) ) )
              | ~ ( in @ SV80 @ ( sK9_B @ SV80 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[963]) ).

thf(1066,plain,
    ! [SV219: $i,SV180: $i] :
      ( ( ~ ( in @ SV180 @ SV219 )
        | ( subset @ ( singleton @ SV180 ) @ SV219 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[966]) ).

thf(1067,plain,
    ! [SV220: $i,SV181: $i] :
      ( ( ~ ( subset @ ( singleton @ SV181 ) @ SV220 )
        | ( in @ SV181 @ SV220 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[967]) ).

thf(1068,plain,
    ! [SV82: $i,SV221: $i] :
      ( ( ! [SY582: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY582 @ SV221 @ SV82 ) @ SY582 )
                          | ~ ( in @ ( sK31_D @ SY582 @ SV221 @ SV82 ) @ SV82 ) )
                      | ~ ( ~ ( in @ ( sK31_D @ SY582 @ SV221 @ SV82 ) @ SY582 )
                          | ~ ( in @ ( sK31_D @ SY582 @ SV221 @ SV82 ) @ SV221 ) ) )
                | ~ ( ( in @ ( sK31_D @ SY582 @ SV221 @ SV82 ) @ SY582 )
                    | ( in @ ( sK31_D @ SY582 @ SV221 @ SV82 ) @ SV82 )
                    | ( in @ ( sK31_D @ SY582 @ SV221 @ SV82 ) @ SV221 ) ) )
            | ( SY582
              = ( set_union2 @ SV82 @ SV221 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[968]) ).

thf(1069,plain,
    ! [SV222: $i,SV82: $i] :
      ( ( ! [SY583: $i] :
            ( ( SY583
             != ( set_union2 @ SV82 @ SV222 ) )
            | ~ ( ~ ! [SY584: $i] :
                      ( ~ ( in @ SY584 @ SY583 )
                      | ( in @ SY584 @ SV82 )
                      | ( in @ SY584 @ SV222 ) )
                | ~ ~ ( ~ ! [SY423: $i] :
                            ( ~ ( in @ SY423 @ SV82 )
                            | ( in @ SY423 @ SY583 ) )
                      | ~ ! [SY586: $i] :
                            ( ~ ( in @ SY586 @ SV222 )
                            | ( in @ SY586 @ SY583 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[969]) ).

thf(1070,plain,
    ! [SV223: $i,SV182: $i] :
      ( ( ~ ( subset @ SV182 @ SV223 )
        | ~ ( subset @ SV223 @ SV182 )
        | ( SV182 = SV223 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[970]) ).

thf(1071,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[971]) ).

thf(1072,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[971]) ).

thf(1073,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
                | ~ ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) )
            | ~ ( ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
                | ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) ) )
        | ( SV224
          = ( powerset @ SV183 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[972]) ).

thf(1074,plain,
    ! [SV184: $i,SV225: $i] :
      ( ( ( SV225
         != ( powerset @ SV184 ) )
        | ~ ( ~ ! [SY587: $i] :
                  ( ~ ( in @ SY587 @ SV225 )
                  | ( subset @ SY587 @ SV184 ) )
            | ~ ! [SY588: $i] :
                  ( ~ ( subset @ SY588 @ SV184 )
                  | ( in @ SY588 @ SV225 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[973]) ).

thf(1075,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ! [SY512: $i,SY513: $i] :
            ( ~ ( in @ SV83 @ SY512 )
            | ~ ( in @ SV153 @ SY513 )
            | ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY512 @ SY513 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[974]) ).

thf(1076,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ~ ( ~ ! [SY514: $i] :
                  ( ! [SY515: $i] :
                      ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY514 @ SY515 ) )
                  | ( in @ SV83 @ SY514 ) )
            | ~ ! [SY516: $i,SY517: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY516 @ SY517 ) )
                  | ( in @ SV153 @ SY517 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[975]) ).

thf(1077,plain,
    ! [SV84: $i,SV226: $i] :
      ( ( ~ ( subset @ SV226 @ ( sK10_B @ SV84 ) )
        | ( are_equipotent @ SV226 @ ( sK10_B @ SV84 ) )
        | ( in @ SV226 @ ( sK10_B @ SV84 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[976]) ).

thf(1078,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY433: $i] :
              ( ~ ( ~ ! [SY434: $i] :
                        ( ~ ( subset @ SY434 @ SY433 )
                        | ( in @ SY434 @ ( sK11_SY302 @ SY433 @ SV84 ) ) )
                  | ~ ( in @ ( sK11_SY302 @ SY433 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
              | ~ ( in @ SY433 @ ( sK10_B @ SV84 ) ) )
        | ~ ~ ( ~ ! [SY435: $i,SY436: $i] :
                    ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
                    | ~ ( subset @ SY436 @ SY435 )
                    | ( in @ SY436 @ ( sK10_B @ SV84 ) ) )
              | ~ ( in @ SV84 @ ( sK10_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[977]) ).

thf(1079,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ~ ( ~ ( ! [SY589: $i] :
                    ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SY589 )
                    | ~ ( in @ SY589 @ SV185 ) )
                | ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
            | ~ ( ~ ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ ( sK20_SY310 @ SV227 @ SV185 ) )
                    | ~ ( in @ ( sK20_SY310 @ SV227 @ SV185 ) @ SV185 ) )
                | ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) ) )
        | ( SV227
          = ( union @ SV185 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[978]) ).

thf(1080,plain,
    ! [SV186: $i,SV228: $i] :
      ( ( ( SV228
         != ( union @ SV186 ) )
        | ~ ( ~ ! [SY590: $i] :
                  ( ! [SY547: $i] :
                      ( ~ ( in @ SY590 @ SY547 )
                      | ~ ( in @ SY547 @ SV186 ) )
                  | ( in @ SY590 @ SV228 ) )
            | ~ ! [SY592: $i] :
                  ( ~ ( in @ SY592 @ SV228 )
                  | ~ ( ~ ( in @ SY592 @ ( sK18_D @ SY592 @ SV228 @ SV186 ) )
                      | ~ ( in @ ( sK18_D @ SY592 @ SV228 @ SV186 ) @ SV186 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[979]) ).

thf(1081,plain,
    ! [SV154: $i,SV85: $i] :
      ( ( ! [SY518: $i] :
            ( ! [SY519: $i] :
                ( ( ordered_pair @ SV85 @ SV154 )
               != ( ordered_pair @ SY518 @ SY519 ) )
            | ( SV85 = SY518 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[980]) ).

thf(1082,plain,
    ! [SV154: $i,SV85: $i] :
      ( ( ! [SY520: $i,SY521: $i] :
            ( ( ( ordered_pair @ SV85 @ SV154 )
             != ( ordered_pair @ SY520 @ SY521 ) )
            | ( SV154 = SY521 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[981]) ).

thf(1083,plain,
    ! [SV229: $i,SV86: $i] :
      ( ( ~ ( subset @ SV86 @ SV229 )
        | ! [SY593: $i] : ( subset @ ( cartesian_product2 @ SV86 @ SY593 ) @ ( cartesian_product2 @ SV229 @ SY593 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[982]) ).

thf(1084,plain,
    ! [SV230: $i,SV86: $i] :
      ( ( ~ ( subset @ SV86 @ SV230 )
        | ! [SY594: $i] : ( subset @ ( cartesian_product2 @ SY594 @ SV86 ) @ ( cartesian_product2 @ SY594 @ SV230 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[983]) ).

thf(1085,plain,
    ! [SV231: $i,SV187: $i] :
      ( ( ( ( set_difference @ SV187 @ SV231 )
         != SV187 )
        | ( disjoint @ SV187 @ SV231 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[984]) ).

thf(1086,plain,
    ! [SV232: $i,SV188: $i] :
      ( ( ~ ( disjoint @ SV188 @ SV232 )
        | ( ( set_difference @ SV188 @ SV232 )
          = SV188 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[985]) ).

thf(1087,plain,
    ! [SV233: $i,SV189: $i] :
      ( ( ~ ( element @ SV189 @ ( powerset @ SV233 ) )
        | ( subset @ SV189 @ SV233 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[986]) ).

thf(1088,plain,
    ! [SV234: $i,SV190: $i] :
      ( ( ~ ( subset @ SV190 @ SV234 )
        | ( element @ SV190 @ ( powerset @ SV234 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[987]) ).

thf(1089,plain,
    ! [SV87: $i,SV235: $i] :
      ( ( ! [SY595: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY595 @ SV235 @ SV87 ) @ SV87 )
                    | ~ ( in @ ( sK24_D @ SY595 @ SV235 @ SV87 ) @ SV235 )
                    | ~ ( in @ ( sK24_D @ SY595 @ SV235 @ SV87 ) @ SY595 ) )
                | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY595 @ SV235 @ SV87 ) @ SV87 )
                          | ( in @ ( sK24_D @ SY595 @ SV235 @ SV87 ) @ SY595 ) )
                      | ~ ( ( in @ ( sK24_D @ SY595 @ SV235 @ SV87 ) @ SV235 )
                          | ( in @ ( sK24_D @ SY595 @ SV235 @ SV87 ) @ SY595 ) ) ) )
            | ( SY595
              = ( set_intersection2 @ SV87 @ SV235 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[988]) ).

thf(1090,plain,
    ! [SV236: $i,SV87: $i] :
      ( ( ! [SY596: $i] :
            ( ( SY596
             != ( set_intersection2 @ SV87 @ SV236 ) )
            | ~ ( ~ ! [SY597: $i] :
                      ( ~ ( in @ SY597 @ SV87 )
                      | ~ ( in @ SY597 @ SV236 )
                      | ( in @ SY597 @ SY596 ) )
                | ~ ~ ( ~ ! [SY451: $i] :
                            ( ~ ( in @ SY451 @ SY596 )
                            | ( in @ SY451 @ SV87 ) )
                      | ~ ! [SY599: $i] :
                            ( ~ ( in @ SY599 @ SY596 )
                            | ( in @ SY599 @ SV236 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[989]) ).

thf(1091,plain,
    ! [SV88: $i] :
      ( ( ( element @ ( sK7_B @ SV88 ) @ ( powerset @ SV88 ) )
        = $true )
      | ( ( empty @ SV88 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[990]) ).

thf(1092,plain,
    ! [SV88: $i] :
      ( ( ( ~ ( empty @ ( sK7_B @ SV88 ) ) )
        = $true )
      | ( ( empty @ SV88 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[991]) ).

thf(1093,plain,
    ! [SV89: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV89 ) )
        = $false )
      | ( ( element @ SV89 @ ( powerset @ SV155 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[992]) ).

thf(1094,plain,
    ! [SV89: $i,SV155: $i] :
      ( ( ( ~ ~ ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV155 ) )
        = $false )
      | ( ( element @ SV89 @ ( powerset @ SV155 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[992]) ).

thf(1095,plain,
    ! [SV237: $i,SV90: $i] :
      ( ( ! [SY600: $i] :
            ( ~ ( in @ SV90 @ SY600 )
            | ~ ( in @ SV237 @ SY600 )
            | ( subset @ ( unordered_pair @ SV90 @ SV237 ) @ SY600 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[993]) ).

thf(1096,plain,
    ! [SV90: $i] :
      ( ( ~ ! [SY456: $i,SY457: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV90 @ SY456 ) @ SY457 )
              | ( in @ SV90 @ SY457 ) )
        | ~ ! [SY458: $i,SY459: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV90 @ SY458 ) @ SY459 )
              | ( in @ SY458 @ SY459 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[994]) ).

thf(1097,plain,
    ! [SV238: $i,SV191: $i] :
      ( ( ( ( set_difference @ SV191 @ ( singleton @ SV238 ) )
         != SV191 )
        | ~ ( in @ SV238 @ SV191 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[995]) ).

thf(1098,plain,
    ! [SV192: $i,SV239: $i] :
      ( ( ( in @ SV239 @ SV192 )
        | ( ( set_difference @ SV192 @ ( singleton @ SV239 ) )
          = SV192 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[996]) ).

thf(1099,plain,
    ! [SV240: $i,SV193: $i] :
      ( ( ( ( set_difference @ SV193 @ SV240 )
         != empty_set )
        | ( subset @ SV193 @ SV240 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[997]) ).

thf(1100,plain,
    ! [SV241: $i,SV194: $i] :
      ( ( ~ ( subset @ SV194 @ SV241 )
        | ( ( set_difference @ SV194 @ SV241 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[998]) ).

thf(1101,plain,
    ! [SV195: $i,SV242: $i] :
      ( ( ~ ( ~ ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV195 )
            | ~ ~ ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV242 ) )
        | ( subset @ SV195 @ SV242 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[999]) ).

thf(1102,plain,
    ! [SV243: $i,SV196: $i] :
      ( ( ~ ( subset @ SV196 @ SV243 )
        | ! [SY601: $i] :
            ( ~ ( in @ SY601 @ SV196 )
            | ( in @ SY601 @ SV243 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1000]) ).

thf(1103,plain,
    ! [SV244: $i,SV91: $i] :
      ( ( ! [SY602: $i] :
            ( ~ ( ~ ( ! [SY603: $i,SY604: $i] :
                        ( ~ ( in @ SY603 @ SV91 )
                        | ~ ( in @ SY604 @ SV244 )
                        | ( ( sK28_D @ SY602 @ SV244 @ SV91 )
                         != ( ordered_pair @ SY603 @ SY604 ) ) )
                    | ~ ( in @ ( sK28_D @ SY602 @ SV244 @ SV91 ) @ SY602 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY602 @ SV244 @ SV91 ) @ SV91 )
                              | ~ ( in @ ( sK30_SY318 @ SY602 @ SV244 @ SV91 ) @ SV244 ) )
                        | ( ( sK28_D @ SY602 @ SV244 @ SV91 )
                         != ( ordered_pair @ ( sK29_SY316 @ SY602 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SY602 @ SV244 @ SV91 ) ) ) )
                    | ( in @ ( sK28_D @ SY602 @ SV244 @ SV91 ) @ SY602 ) ) )
            | ( SY602
              = ( cartesian_product2 @ SV91 @ SV244 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1001]) ).

thf(1104,plain,
    ! [SV245: $i,SV91: $i] :
      ( ( ! [SY605: $i] :
            ( ( SY605
             != ( cartesian_product2 @ SV91 @ SV245 ) )
            | ~ ( ~ ! [SY606: $i] :
                      ( ! [SY607: $i,SY608: $i] :
                          ( ~ ( in @ SY607 @ SV91 )
                          | ~ ( in @ SY608 @ SV245 )
                          | ( SY606
                           != ( ordered_pair @ SY607 @ SY608 ) ) )
                      | ( in @ SY606 @ SY605 ) )
                | ~ ! [SY609: $i] :
                      ( ~ ( in @ SY609 @ SY605 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY609 @ SY605 @ SV245 @ SV91 ) @ SV91 )
                                | ~ ( in @ ( sK27_SY313 @ SY609 @ SY605 @ SV245 @ SV91 ) @ SV245 ) )
                          | ( SY609
                           != ( ordered_pair @ ( sK26_E @ SY609 @ SY605 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SY609 @ SY605 @ SV245 @ SV91 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1002]) ).

thf(1105,plain,
    ! [SV246: $i,SV197: $i] :
      ( ( ( disjoint @ SV197 @ SV246 )
        | ( in @ ( sK39_C @ SV246 @ SV197 ) @ ( set_intersection2 @ SV197 @ SV246 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1003]) ).

thf(1106,plain,
    ! [SV247: $i,SV198: $i] :
      ( ( ! [SY610: $i] :
            ~ ( in @ SY610 @ ( set_intersection2 @ SV198 @ SV247 ) )
        | ~ ( disjoint @ SV198 @ SV247 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1004]) ).

thf(1107,plain,
    ! [SV248: $i,SV199: $i] :
      ( ( ~ ( subset @ SV199 @ ( singleton @ SV248 ) )
        | ( SV199 = empty_set )
        | ( SV199
          = ( singleton @ SV248 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1005]) ).

thf(1108,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1006]) ).

thf(1109,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1006]) ).

thf(1110,plain,
    ! [SV249: $i,SV200: $i] :
      ( ( ( ( set_intersection2 @ SV200 @ SV249 )
         != empty_set )
        | ( disjoint @ SV200 @ SV249 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1007]) ).

thf(1111,plain,
    ! [SV250: $i,SV201: $i] :
      ( ( ~ ( disjoint @ SV201 @ SV250 )
        | ( ( set_intersection2 @ SV201 @ SV250 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1008]) ).

thf(1112,plain,
    ! [SV251: $i,SV202: $i] :
      ( ( ( ( set_difference @ SV202 @ SV251 )
         != empty_set )
        | ( subset @ SV202 @ SV251 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1009]) ).

thf(1113,plain,
    ! [SV252: $i,SV203: $i] :
      ( ( ~ ( subset @ SV203 @ SV252 )
        | ( ( set_difference @ SV203 @ SV252 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1010]) ).

thf(1114,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1011]) ).

thf(1115,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1011]) ).

thf(1116,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1012]) ).

thf(1117,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1012]) ).

thf(1118,plain,
    ! [SV92: $i] :
      ( ( ( ~ ! [SY470: $i] :
                ( ~ ( ~ ( ! [SY471: $i] :
                            ~ ( in @ ( ordered_pair @ SY471 @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                        | ~ ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY470 @ SV92 ) @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                        | ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) ) )
                | ( SY470
                  = ( relation_rng @ SV92 ) ) ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1013]) ).

thf(1119,plain,
    ! [SV92: $i] :
      ( ( ( ~ ! [SY472: $i] :
                ( ( SY472
                 != ( relation_rng @ SV92 ) )
                | ~ ( ~ ! [SY473: $i] :
                          ( ! [SY474: $i] :
                              ~ ( in @ ( ordered_pair @ SY474 @ SY473 ) @ SV92 )
                          | ( in @ SY473 @ SY472 ) )
                    | ~ ! [SY475: $i] :
                          ( ~ ( in @ SY475 @ SY472 )
                          | ( in @ ( ordered_pair @ ( sK14_D @ SY475 @ SY472 @ SV92 ) @ SY475 ) @ SV92 ) ) ) ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1013]) ).

thf(1120,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ! [SY522: $i,SY523: $i] :
            ( ~ ( in @ SV93 @ SY522 )
            | ~ ( in @ SV156 @ SY523 )
            | ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY522 @ SY523 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1014]) ).

thf(1121,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ~ ( ~ ! [SY524: $i] :
                  ( ! [SY525: $i] :
                      ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY524 @ SY525 ) )
                  | ( in @ SV93 @ SY524 ) )
            | ~ ! [SY526: $i,SY527: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY526 @ SY527 ) )
                  | ( in @ SV156 @ SY527 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1015]) ).

thf(1122,plain,
    ! [SV253: $i,SV204: $i] :
      ( ( ~ ( subset @ SV204 @ ( singleton @ SV253 ) )
        | ( SV204 = empty_set )
        | ( SV204
          = ( singleton @ SV253 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1016]) ).

thf(1123,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1017]) ).

thf(1124,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1017]) ).

thf(1125,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1018]) ).

thf(1126,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK36_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)],[1018]) ).

thf(1127,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1019]) ).

thf(1128,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1019]) ).

thf(1129,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ~ ( ~ ( ( ( sK35_C @ SV254 @ SV205 )
                 != SV205 )
                | ~ ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) )
            | ~ ( ( ( sK35_C @ SV254 @ SV205 )
                  = SV205 )
                | ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) ) )
        | ( SV254
          = ( singleton @ SV205 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1020]) ).

thf(1130,plain,
    ! [SV206: $i,SV255: $i] :
      ( ( ( SV255
         != ( singleton @ SV206 ) )
        | ~ ( ~ ! [SY611: $i] :
                  ( ( SY611 != SV206 )
                  | ( in @ SY611 @ SV255 ) )
            | ~ ! [SY612: $i] :
                  ( ~ ( in @ SY612 @ SV255 )
                  | ( SY612 = SV206 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1021]) ).

thf(1131,plain,
    ! [SV94: $i,SV256: $i] :
      ( ( ! [SY613: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY613 @ SV256 @ SV94 ) @ SV94 )
                    | ( in @ ( sK17_D @ SY613 @ SV256 @ SV94 ) @ SV256 )
                    | ~ ( in @ ( sK17_D @ SY613 @ SV256 @ SV94 ) @ SY613 ) )
                | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY613 @ SV256 @ SV94 ) @ SV94 )
                          | ( in @ ( sK17_D @ SY613 @ SV256 @ SV94 ) @ SY613 ) )
                      | ~ ( ~ ( in @ ( sK17_D @ SY613 @ SV256 @ SV94 ) @ SV256 )
                          | ( in @ ( sK17_D @ SY613 @ SV256 @ SV94 ) @ SY613 ) ) ) )
            | ( SY613
              = ( set_difference @ SV94 @ SV256 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1022]) ).

thf(1132,plain,
    ! [SV257: $i,SV94: $i] :
      ( ( ! [SY614: $i] :
            ( ( SY614
             != ( set_difference @ SV94 @ SV257 ) )
            | ~ ( ~ ! [SY615: $i] :
                      ( ~ ( in @ SY615 @ SV94 )
                      | ( in @ SY615 @ SV257 )
                      | ( in @ SY615 @ SY614 ) )
                | ~ ~ ( ~ ! [SY488: $i] :
                            ( ~ ( in @ SY488 @ SY614 )
                            | ( in @ SY488 @ SV94 ) )
                      | ~ ! [SY617: $i] :
                            ( ~ ( in @ SY617 @ SY614 )
                            | ~ ( in @ SY617 @ SV257 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1023]) ).

thf(1133,plain,
    ! [SV157: $i,SV95: $i] :
      ( ( ( ~ ! [SY528: $i] :
                ( ~ ( element @ SY528 @ ( powerset @ SV95 ) )
                | ~ ( disjoint @ SV157 @ SY528 )
                | ( subset @ SV157 @ ( subset_complement @ SV95 @ SY528 ) ) )
          | ~ ! [SY529: $i] :
                ( ~ ( element @ SY529 @ ( powerset @ SV95 ) )
                | ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SY529 ) )
                | ( disjoint @ SV157 @ SY529 ) ) )
        = $false )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1024]) ).

thf(1134,plain,
    ! [SV258: $i,SV207: $i] :
      ( ( ( disjoint @ SV207 @ SV258 )
        | ~ ( ~ ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV207 )
            | ~ ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV258 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1025]) ).

thf(1135,plain,
    ! [SV259: $i,SV208: $i] :
      ( ( ! [SY618: $i] :
            ( ~ ( in @ SY618 @ SV208 )
            | ~ ( in @ SY618 @ SV259 ) )
        | ~ ( disjoint @ SV208 @ SV259 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1026]) ).

thf(1136,plain,
    ! [SV260: $i,SV209: $i] :
      ( ( ( SV209 = SV260 )
        | ~ ( subset @ SV209 @ SV260 )
        | ( proper_subset @ SV209 @ SV260 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1027]) ).

thf(1137,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1028]) ).

thf(1138,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1028]) ).

thf(1139,plain,
    ! [SV4: $i,SV99: $i,SV210: $i] :
      ( ( ( ~ ( in @ SV210 @ SV99 ) )
        = $true )
      | ( ( in @ SV210 @ SV4 )
        = $true )
      | ( ( element @ SV99 @ ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1030]) ).

thf(1140,plain,
    ! [SV13: $i,SV158: $i,SV108: $i] :
      ( ( ( element @ SV108 @ ( powerset @ SV158 ) )
        = $false )
      | ( ( ~ ( in @ SV13 @ SV108 ) )
        = $true )
      | ( ( element @ SV13 @ SV158 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1033]) ).

thf(1141,plain,
    ! [SV110: $i,SV16: $i,SV211: $i] :
      ( ( ( in @ SV211 @ SV16 )
        = $true )
      | ( ( subset @ SV16 @ ( set_difference @ SV110 @ ( singleton @ SV211 ) ) )
        = $true )
      | ( ( subset @ SV16 @ SV110 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1035]) ).

thf(1142,plain,
    ! [SV173: $i,SV111: $i,SV159: $i,SV17: $i] :
      ( ( ( SV17 = SV159 )
        = $true )
      | ( ( ( ( unordered_pair @ SV17 @ SV111 )
           != ( unordered_pair @ SV159 @ SV173 ) ) )
        = $true )
      | ( ( SV17 = SV173 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1036]) ).

thf(1143,plain,
    ! [SV174: $i,SV160: $i,SV112: $i,SV18: $i] :
      ( ( ( ~ ( subset @ SV18 @ SV112 ) )
        = $true )
      | ( ( ~ ( subset @ SV160 @ SV174 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV18 @ SV160 ) @ ( cartesian_product2 @ SV112 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1037]) ).

thf(1144,plain,
    ! [SV161: $i,SV115: $i,SV21: $i] :
      ( ( ( subset @ SV21 @ SV115 )
        = $false )
      | ( ( ~ ( subset @ SV21 @ SV161 ) )
        = $true )
      | ( ( subset @ SV21 @ ( set_intersection2 @ SV115 @ SV161 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1038]) ).

thf(1145,plain,
    ! [SV162: $i,SV116: $i,SV22: $i] :
      ( ( ( subset @ SV22 @ SV116 )
        = $false )
      | ( ( ~ ( subset @ SV116 @ SV162 ) )
        = $true )
      | ( ( subset @ SV22 @ SV162 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1039]) ).

thf(1146,plain,
    ! [SV124: $i,SV32: $i] :
      ( ( ( ( complements_of_subsets @ SV32 @ SV124 )
          = empty_set )
        = $false )
      | ( ( SV124 = empty_set )
        = $true )
      | ( ( element @ SV124 @ ( powerset @ ( powerset @ SV32 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1042]) ).

thf(1147,plain,
    ! [SV163: $i,SV34: $i,SV261: $i] :
      ( ( ( ~ ( element @ SV261 @ SV34 )
          | ( in @ SV261 @ SV163 )
          | ( in @ SV261 @ ( subset_complement @ SV34 @ SV163 ) ) )
        = $true )
      | ( ( element @ SV163 @ ( powerset @ SV34 ) )
        = $false )
      | ( ( SV34 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1043]) ).

thf(1148,plain,
    ! [SV164: $i,SV35: $i,SV126: $i] :
      ( ( ( ~ ( in @ SV126 @ ( subset_complement @ SV35 @ SV164 ) ) )
        = $true )
      | ( ( ~ ( in @ SV126 @ SV164 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ SV35 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1044]) ).

thf(1149,plain,
    ! [SV37: $i,SV165: $i,SV128: $i] :
      ( ( ( disjoint @ SV128 @ SV165 )
        = $false )
      | ( ( ~ ( subset @ SV37 @ SV128 ) )
        = $true )
      | ( ( disjoint @ SV37 @ SV165 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1046]) ).

thf(1150,plain,
    ! [SV166: $i,SV131: $i,SV41: $i] :
      ( ( ( subset @ SV41 @ SV131 )
        = $false )
      | ( ( ~ ( subset @ SV166 @ SV131 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV41 @ SV166 ) @ SV131 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1047]) ).

thf(1151,plain,
    ! [SV168: $i,SV53: $i,SV141: $i] :
      ( ( ( element @ SV141 @ ( powerset @ SV53 ) )
        = $false )
      | ( ( ~ ( element @ SV168 @ ( powerset @ SV53 ) ) )
        = $true )
      | ( ( element @ ( subset_difference @ SV53 @ SV141 @ SV168 ) @ ( powerset @ SV53 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1050]) ).

thf(1152,plain,
    ! [SV171: $i,SV67: $i,SV148: $i] :
      ( ( ( element @ SV148 @ ( powerset @ SV67 ) )
        = $false )
      | ( ( ~ ( element @ SV171 @ ( powerset @ SV67 ) ) )
        = $true )
      | ( ( ( subset_difference @ SV67 @ SV148 @ SV171 )
          = ( set_difference @ SV148 @ SV171 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1051]) ).

thf(1153,plain,
    ! [SV74: $i,SV172: $i,SV150: $i] :
      ( ( ( element @ SV150 @ ( powerset @ SV172 ) )
        = $false )
      | ( ( ~ ( in @ SV74 @ SV150 ) )
        = $true )
      | ( ( ~ ( empty @ SV172 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1052]) ).

thf(1154,plain,
    ! [SV76: $i,SV151: $i] :
      ( ( ( empty @ SV151 )
        = $false )
      | ( ( SV76 = SV151 )
        = $true )
      | ( ( empty @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1053]) ).

thf(1155,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
          | ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) )
        = $true )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1054]) ).

thf(1156,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
          | ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) )
        = $true )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1055]) ).

thf(1157,plain,
    ! [SV214: $i,SV176: $i] :
      ( ( ( ~ ( in @ SV176 @ SV214 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV176 ) @ SV214 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1056]) ).

thf(1158,plain,
    ! [SV215: $i,SV177: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV177 ) @ SV215 ) )
        = $true )
      | ( ( in @ SV177 @ SV215 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1057]) ).

thf(1159,plain,
    ! [SV78: $i] :
      ( ( ( ! [SY401: $i] :
              ( ~ ( ~ ( ! [SY402: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ SY402 ) @ SV78 )
                      | ~ ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY401 @ SV78 ) @ ( sK23_SY312 @ SY401 @ SV78 ) ) @ SV78 )
                      | ( in @ ( sK22_C @ SY401 @ SV78 ) @ SY401 ) ) )
              | ( SY401
                = ( relation_dom @ SV78 ) ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1058]) ).

thf(1160,plain,
    ! [SV78: $i] :
      ( ( ( ! [SY403: $i] :
              ( ( SY403
               != ( relation_dom @ SV78 ) )
              | ~ ( ~ ! [SY404: $i] :
                        ( ! [SY405: $i] :
                            ~ ( in @ ( ordered_pair @ SY404 @ SY405 ) @ SV78 )
                        | ( in @ SY404 @ SY403 ) )
                  | ~ ! [SY406: $i] :
                        ( ~ ( in @ SY406 @ SY403 )
                        | ( in @ ( ordered_pair @ SY406 @ ( sK21_D @ SY406 @ SY403 @ SV78 ) ) @ SV78 ) ) ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1059]) ).

thf(1161,plain,
    ! [SV179: $i] :
      ( ( ( SV179 = empty_set )
        = $false )
      | ( ( ! [SY535: $i] :
              ~ ( in @ SY535 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1061]) ).

thf(1162,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                      | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                       != SV79 ) )
                  | ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                      | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                       != SV216 ) ) )
            | ~ ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                  = SV79 )
                | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                  = SV216 ) ) )
        | ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1062]) ).

thf(1163,plain,
    ! [SV217: $i,SV79: $i,SV263: $i] :
      ( ( ( SV263
         != ( unordered_pair @ SV79 @ SV217 ) )
        | ~ ( ~ ! [SY619: $i] :
                  ( ~ ( in @ SY619 @ SV263 )
                  | ( SY619 = SV79 )
                  | ( SY619 = SV217 ) )
            | ~ ~ ( ~ ! [SY620: $i] :
                        ( ( SY620 != SV79 )
                        | ( in @ SY620 @ SV263 ) )
                  | ~ ! [SY621: $i] :
                        ( ( SY621 != SV217 )
                        | ( in @ SY621 @ SV263 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1063]) ).

thf(1164,plain,
    ! [SV80: $i,SV218: $i] :
      ( ( ( ~ ( subset @ SV218 @ ( sK9_B @ SV80 ) )
          | ( are_equipotent @ SV218 @ ( sK9_B @ SV80 ) ) )
        = $true )
      | ( ( in @ SV218 @ ( sK9_B @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1064]) ).

thf(1165,plain,
    ! [SV80: $i] :
      ( ( ~ ! [SY415: $i] :
              ( ~ ( in @ SY415 @ ( sK9_B @ SV80 ) )
              | ( in @ ( powerset @ SY415 ) @ ( sK9_B @ SV80 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1065]) ).

thf(1166,plain,
    ! [SV80: $i] :
      ( ( ~ ~ ( ~ ! [SY416: $i,SY417: $i] :
                    ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
                    | ~ ( subset @ SY417 @ SY416 )
                    | ( in @ SY417 @ ( sK9_B @ SV80 ) ) )
              | ~ ( in @ SV80 @ ( sK9_B @ SV80 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1065]) ).

thf(1167,plain,
    ! [SV219: $i,SV180: $i] :
      ( ( ( ~ ( in @ SV180 @ SV219 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV180 ) @ SV219 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1066]) ).

thf(1168,plain,
    ! [SV220: $i,SV181: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV181 ) @ SV220 ) )
        = $true )
      | ( ( in @ SV181 @ SV220 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1067]) ).

thf(1169,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                      | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) )
                  | ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                      | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) )
            | ~ ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 )
                | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) )
        | ( SV264
          = ( set_union2 @ SV82 @ SV221 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1068]) ).

thf(1170,plain,
    ! [SV222: $i,SV82: $i,SV265: $i] :
      ( ( ( SV265
         != ( set_union2 @ SV82 @ SV222 ) )
        | ~ ( ~ ! [SY622: $i] :
                  ( ~ ( in @ SY622 @ SV265 )
                  | ( in @ SY622 @ SV82 )
                  | ( in @ SY622 @ SV222 ) )
            | ~ ~ ( ~ ! [SY623: $i] :
                        ( ~ ( in @ SY623 @ SV82 )
                        | ( in @ SY623 @ SV265 ) )
                  | ~ ! [SY624: $i] :
                        ( ~ ( in @ SY624 @ SV222 )
                        | ( in @ SY624 @ SV265 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1069]) ).

thf(1171,plain,
    ! [SV223: $i,SV182: $i] :
      ( ( ( ~ ( subset @ SV182 @ SV223 )
          | ~ ( subset @ SV223 @ SV182 ) )
        = $true )
      | ( ( SV182 = SV223 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1070]) ).

thf(1172,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1071]) ).

thf(1173,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1072]) ).

thf(1174,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
                  | ~ ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) )
              | ~ ( ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
                  | ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) ) ) )
        = $true )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1073]) ).

thf(1175,plain,
    ! [SV184: $i,SV225: $i] :
      ( ( ( ( SV225
           != ( powerset @ SV184 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY587: $i] :
                    ( ~ ( in @ SY587 @ SV225 )
                    | ( subset @ SY587 @ SV184 ) )
              | ~ ! [SY588: $i] :
                    ( ~ ( subset @ SY588 @ SV184 )
                    | ( in @ SY588 @ SV225 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1074]) ).

thf(1176,plain,
    ! [SV153: $i,SV266: $i,SV83: $i] :
      ( ( ! [SY625: $i] :
            ( ~ ( in @ SV83 @ SV266 )
            | ~ ( in @ SV153 @ SY625 )
            | ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV266 @ SY625 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1075]) ).

thf(1177,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ~ ! [SY514: $i] :
              ( ! [SY515: $i] :
                  ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY514 @ SY515 ) )
              | ( in @ SV83 @ SY514 ) )
        | ~ ! [SY516: $i,SY517: $i] :
              ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY516 @ SY517 ) )
              | ( in @ SV153 @ SY517 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1076]) ).

thf(1178,plain,
    ! [SV84: $i,SV226: $i] :
      ( ( ( ~ ( subset @ SV226 @ ( sK10_B @ SV84 ) )
          | ( are_equipotent @ SV226 @ ( sK10_B @ SV84 ) ) )
        = $true )
      | ( ( in @ SV226 @ ( sK10_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1077]) ).

thf(1179,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY433: $i] :
              ( ~ ( ~ ! [SY434: $i] :
                        ( ~ ( subset @ SY434 @ SY433 )
                        | ( in @ SY434 @ ( sK11_SY302 @ SY433 @ SV84 ) ) )
                  | ~ ( in @ ( sK11_SY302 @ SY433 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
              | ~ ( in @ SY433 @ ( sK10_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1078]) ).

thf(1180,plain,
    ! [SV84: $i] :
      ( ( ~ ~ ( ~ ! [SY435: $i,SY436: $i] :
                    ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
                    | ~ ( subset @ SY436 @ SY435 )
                    | ( in @ SY436 @ ( sK10_B @ SV84 ) ) )
              | ~ ( in @ SV84 @ ( sK10_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1078]) ).

thf(1181,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ~ ( ~ ( ! [SY589: $i] :
                      ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SY589 )
                      | ~ ( in @ SY589 @ SV185 ) )
                  | ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
              | ~ ( ~ ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ ( sK20_SY310 @ SV227 @ SV185 ) )
                      | ~ ( in @ ( sK20_SY310 @ SV227 @ SV185 ) @ SV185 ) )
                  | ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) ) ) )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1079]) ).

thf(1182,plain,
    ! [SV186: $i,SV228: $i] :
      ( ( ( ( SV228
           != ( union @ SV186 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY590: $i] :
                    ( ! [SY547: $i] :
                        ( ~ ( in @ SY590 @ SY547 )
                        | ~ ( in @ SY547 @ SV186 ) )
                    | ( in @ SY590 @ SV228 ) )
              | ~ ! [SY592: $i] :
                    ( ~ ( in @ SY592 @ SV228 )
                    | ~ ( ~ ( in @ SY592 @ ( sK18_D @ SY592 @ SV228 @ SV186 ) )
                        | ~ ( in @ ( sK18_D @ SY592 @ SV228 @ SV186 ) @ SV186 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1080]) ).

thf(1183,plain,
    ! [SV267: $i,SV154: $i,SV85: $i] :
      ( ( ! [SY626: $i] :
            ( ( ordered_pair @ SV85 @ SV154 )
           != ( ordered_pair @ SV267 @ SY626 ) )
        | ( SV85 = SV267 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1081]) ).

thf(1184,plain,
    ! [SV268: $i,SV154: $i,SV85: $i] :
      ( ( ! [SY627: $i] :
            ( ( ( ordered_pair @ SV85 @ SV154 )
             != ( ordered_pair @ SV268 @ SY627 ) )
            | ( SV154 = SY627 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1082]) ).

thf(1185,plain,
    ! [SV229: $i,SV86: $i] :
      ( ( ( ~ ( subset @ SV86 @ SV229 ) )
        = $true )
      | ( ( ! [SY593: $i] : ( subset @ ( cartesian_product2 @ SV86 @ SY593 ) @ ( cartesian_product2 @ SV229 @ SY593 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1083]) ).

thf(1186,plain,
    ! [SV230: $i,SV86: $i] :
      ( ( ( ~ ( subset @ SV86 @ SV230 ) )
        = $true )
      | ( ( ! [SY594: $i] : ( subset @ ( cartesian_product2 @ SY594 @ SV86 ) @ ( cartesian_product2 @ SY594 @ SV230 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1084]) ).

thf(1187,plain,
    ! [SV231: $i,SV187: $i] :
      ( ( ( ( ( set_difference @ SV187 @ SV231 )
           != SV187 ) )
        = $true )
      | ( ( disjoint @ SV187 @ SV231 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1085]) ).

thf(1188,plain,
    ! [SV232: $i,SV188: $i] :
      ( ( ( ~ ( disjoint @ SV188 @ SV232 ) )
        = $true )
      | ( ( ( set_difference @ SV188 @ SV232 )
          = SV188 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1086]) ).

thf(1189,plain,
    ! [SV233: $i,SV189: $i] :
      ( ( ( ~ ( element @ SV189 @ ( powerset @ SV233 ) ) )
        = $true )
      | ( ( subset @ SV189 @ SV233 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1087]) ).

thf(1190,plain,
    ! [SV234: $i,SV190: $i] :
      ( ( ( ~ ( subset @ SV190 @ SV234 ) )
        = $true )
      | ( ( element @ SV190 @ ( powerset @ SV234 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1088]) ).

thf(1191,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
                | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
                | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
            | ~ ~ ( ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
                      | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
                  | ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
                      | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) ) ) )
        | ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1089]) ).

thf(1192,plain,
    ! [SV236: $i,SV87: $i,SV270: $i] :
      ( ( ( SV270
         != ( set_intersection2 @ SV87 @ SV236 ) )
        | ~ ( ~ ! [SY628: $i] :
                  ( ~ ( in @ SY628 @ SV87 )
                  | ~ ( in @ SY628 @ SV236 )
                  | ( in @ SY628 @ SV270 ) )
            | ~ ~ ( ~ ! [SY629: $i] :
                        ( ~ ( in @ SY629 @ SV270 )
                        | ( in @ SY629 @ SV87 ) )
                  | ~ ! [SY630: $i] :
                        ( ~ ( in @ SY630 @ SV270 )
                        | ( in @ SY630 @ SV236 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1090]) ).

thf(1193,plain,
    ! [SV88: $i] :
      ( ( ( empty @ ( sK7_B @ SV88 ) )
        = $false )
      | ( ( empty @ SV88 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1092]) ).

thf(1194,plain,
    ! [SV89: $i,SV155: $i] :
      ( ( ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV89 )
        = $true )
      | ( ( element @ SV89 @ ( powerset @ SV155 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1093]) ).

thf(1195,plain,
    ! [SV89: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV155 ) )
        = $true )
      | ( ( element @ SV89 @ ( powerset @ SV155 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1094]) ).

thf(1196,plain,
    ! [SV237: $i,SV271: $i,SV90: $i] :
      ( ( ~ ( in @ SV90 @ SV271 )
        | ~ ( in @ SV237 @ SV271 )
        | ( subset @ ( unordered_pair @ SV90 @ SV237 ) @ SV271 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1095]) ).

thf(1197,plain,
    ! [SV90: $i] :
      ( ( ~ ! [SY456: $i,SY457: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV90 @ SY456 ) @ SY457 )
              | ( in @ SV90 @ SY457 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1096]) ).

thf(1198,plain,
    ! [SV90: $i] :
      ( ( ~ ! [SY458: $i,SY459: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV90 @ SY458 ) @ SY459 )
              | ( in @ SY458 @ SY459 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1096]) ).

thf(1199,plain,
    ! [SV238: $i,SV191: $i] :
      ( ( ( ( ( set_difference @ SV191 @ ( singleton @ SV238 ) )
           != SV191 ) )
        = $true )
      | ( ( ~ ( in @ SV238 @ SV191 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1097]) ).

thf(1200,plain,
    ! [SV192: $i,SV239: $i] :
      ( ( ( in @ SV239 @ SV192 )
        = $true )
      | ( ( ( set_difference @ SV192 @ ( singleton @ SV239 ) )
          = SV192 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1098]) ).

thf(1201,plain,
    ! [SV240: $i,SV193: $i] :
      ( ( ( ( ( set_difference @ SV193 @ SV240 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV193 @ SV240 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1099]) ).

thf(1202,plain,
    ! [SV241: $i,SV194: $i] :
      ( ( ( ~ ( subset @ SV194 @ SV241 ) )
        = $true )
      | ( ( ( set_difference @ SV194 @ SV241 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1100]) ).

thf(1203,plain,
    ! [SV195: $i,SV242: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV195 )
              | ~ ~ ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV242 ) ) )
        = $true )
      | ( ( subset @ SV195 @ SV242 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1101]) ).

thf(1204,plain,
    ! [SV243: $i,SV196: $i] :
      ( ( ( ~ ( subset @ SV196 @ SV243 ) )
        = $true )
      | ( ( ! [SY601: $i] :
              ( ~ ( in @ SY601 @ SV196 )
              | ( in @ SY601 @ SV243 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1102]) ).

thf(1205,plain,
    ! [SV272: $i,SV244: $i,SV91: $i] :
      ( ( ~ ( ~ ( ! [SY631: $i,SY632: $i] :
                    ( ~ ( in @ SY631 @ SV91 )
                    | ~ ( in @ SY632 @ SV244 )
                    | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
                     != ( ordered_pair @ SY631 @ SY632 ) ) )
                | ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
            | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
                          | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) )
                    | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
                     != ( ordered_pair @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) ) ) )
                | ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) ) )
        | ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1103]) ).

thf(1206,plain,
    ! [SV245: $i,SV91: $i,SV273: $i] :
      ( ( ( SV273
         != ( cartesian_product2 @ SV91 @ SV245 ) )
        | ~ ( ~ ! [SY633: $i] :
                  ( ! [SY607: $i,SY608: $i] :
                      ( ~ ( in @ SY607 @ SV91 )
                      | ~ ( in @ SY608 @ SV245 )
                      | ( SY633
                       != ( ordered_pair @ SY607 @ SY608 ) ) )
                  | ( in @ SY633 @ SV273 ) )
            | ~ ! [SY636: $i] :
                  ( ~ ( in @ SY636 @ SV273 )
                  | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                            | ~ ( in @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
                      | ( SY636
                       != ( ordered_pair @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1104]) ).

thf(1207,plain,
    ! [SV246: $i,SV197: $i] :
      ( ( ( disjoint @ SV197 @ SV246 )
        = $true )
      | ( ( in @ ( sK39_C @ SV246 @ SV197 ) @ ( set_intersection2 @ SV197 @ SV246 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1105]) ).

thf(1208,plain,
    ! [SV247: $i,SV198: $i] :
      ( ( ( ! [SY610: $i] :
              ~ ( in @ SY610 @ ( set_intersection2 @ SV198 @ SV247 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV198 @ SV247 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1106]) ).

thf(1209,plain,
    ! [SV248: $i,SV199: $i] :
      ( ( ( ~ ( subset @ SV199 @ ( singleton @ SV248 ) ) )
        = $true )
      | ( ( ( SV199 = empty_set )
          | ( SV199
            = ( singleton @ SV248 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1107]) ).

thf(1210,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1108]) ).

thf(1211,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1109]) ).

thf(1212,plain,
    ! [SV249: $i,SV200: $i] :
      ( ( ( ( ( set_intersection2 @ SV200 @ SV249 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV200 @ SV249 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1110]) ).

thf(1213,plain,
    ! [SV250: $i,SV201: $i] :
      ( ( ( ~ ( disjoint @ SV201 @ SV250 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV201 @ SV250 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1111]) ).

thf(1214,plain,
    ! [SV251: $i,SV202: $i] :
      ( ( ( ( ( set_difference @ SV202 @ SV251 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV202 @ SV251 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1112]) ).

thf(1215,plain,
    ! [SV252: $i,SV203: $i] :
      ( ( ( ~ ( subset @ SV203 @ SV252 ) )
        = $true )
      | ( ( ( set_difference @ SV203 @ SV252 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1113]) ).

thf(1216,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1114]) ).

thf(1217,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( in @ SX1 @ SX0 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1115]) ).

thf(1218,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( empty @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1116]) ).

thf(1219,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( empty @ SX1 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1117]) ).

thf(1220,plain,
    ! [SV92: $i] :
      ( ( ( ! [SY470: $i] :
              ( ~ ( ~ ( ! [SY471: $i] :
                          ~ ( in @ ( ordered_pair @ SY471 @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                      | ~ ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY470 @ SV92 ) @ ( sK15_C @ SY470 @ SV92 ) ) @ SV92 )
                      | ( in @ ( sK15_C @ SY470 @ SV92 ) @ SY470 ) ) )
              | ( SY470
                = ( relation_rng @ SV92 ) ) ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1118]) ).

thf(1221,plain,
    ! [SV92: $i] :
      ( ( ( ! [SY472: $i] :
              ( ( SY472
               != ( relation_rng @ SV92 ) )
              | ~ ( ~ ! [SY473: $i] :
                        ( ! [SY474: $i] :
                            ~ ( in @ ( ordered_pair @ SY474 @ SY473 ) @ SV92 )
                        | ( in @ SY473 @ SY472 ) )
                  | ~ ! [SY475: $i] :
                        ( ~ ( in @ SY475 @ SY472 )
                        | ( in @ ( ordered_pair @ ( sK14_D @ SY475 @ SY472 @ SV92 ) @ SY475 ) @ SV92 ) ) ) ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1119]) ).

thf(1222,plain,
    ! [SV156: $i,SV274: $i,SV93: $i] :
      ( ( ! [SY637: $i] :
            ( ~ ( in @ SV93 @ SV274 )
            | ~ ( in @ SV156 @ SY637 )
            | ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV274 @ SY637 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1120]) ).

thf(1223,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ~ ! [SY524: $i] :
              ( ! [SY525: $i] :
                  ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY524 @ SY525 ) )
              | ( in @ SV93 @ SY524 ) )
        | ~ ! [SY526: $i,SY527: $i] :
              ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY526 @ SY527 ) )
              | ( in @ SV156 @ SY527 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1121]) ).

thf(1224,plain,
    ! [SV253: $i,SV204: $i] :
      ( ( ( ~ ( subset @ SV204 @ ( singleton @ SV253 ) ) )
        = $true )
      | ( ( ( SV204 = empty_set )
          | ( SV204
            = ( singleton @ SV253 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1122]) ).

thf(1225,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1123]) ).

thf(1226,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1124]) ).

thf(1227,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                      | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                  | ~ ( ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX0 )
                          | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                      | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1125]) ).

thf(1228,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ SX2 @ ( sK36_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)],[1126]) ).

thf(1229,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ( SX1 = empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1127]) ).

thf(1230,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1 != empty_set )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1128]) ).

thf(1231,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( ~ ( ~ ( ( ( sK35_C @ SV254 @ SV205 )
                   != SV205 )
                  | ~ ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) )
              | ~ ( ( ( sK35_C @ SV254 @ SV205 )
                    = SV205 )
                  | ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) ) ) )
        = $true )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1129]) ).

thf(1232,plain,
    ! [SV206: $i,SV255: $i] :
      ( ( ( ( SV255
           != ( singleton @ SV206 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY611: $i] :
                    ( ( SY611 != SV206 )
                    | ( in @ SY611 @ SV255 ) )
              | ~ ! [SY612: $i] :
                    ( ~ ( in @ SY612 @ SV255 )
                    | ( SY612 = SV206 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1130]) ).

thf(1233,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
                | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
                | ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
            | ~ ~ ( ~ ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
                      | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
                  | ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
                      | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) ) ) )
        | ( SV275
          = ( set_difference @ SV94 @ SV256 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1131]) ).

thf(1234,plain,
    ! [SV257: $i,SV94: $i,SV276: $i] :
      ( ( ( SV276
         != ( set_difference @ SV94 @ SV257 ) )
        | ~ ( ~ ! [SY638: $i] :
                  ( ~ ( in @ SY638 @ SV94 )
                  | ( in @ SY638 @ SV257 )
                  | ( in @ SY638 @ SV276 ) )
            | ~ ~ ( ~ ! [SY639: $i] :
                        ( ~ ( in @ SY639 @ SV276 )
                        | ( in @ SY639 @ SV94 ) )
                  | ~ ! [SY640: $i] :
                        ( ~ ( in @ SY640 @ SV276 )
                        | ~ ( in @ SY640 @ SV257 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1132]) ).

thf(1235,plain,
    ! [SV157: $i,SV95: $i] :
      ( ( ( ~ ! [SY528: $i] :
                ( ~ ( element @ SY528 @ ( powerset @ SV95 ) )
                | ~ ( disjoint @ SV157 @ SY528 )
                | ( subset @ SV157 @ ( subset_complement @ SV95 @ SY528 ) ) ) )
        = $false )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1133]) ).

thf(1236,plain,
    ! [SV157: $i,SV95: $i] :
      ( ( ( ~ ! [SY529: $i] :
                ( ~ ( element @ SY529 @ ( powerset @ SV95 ) )
                | ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SY529 ) )
                | ( disjoint @ SV157 @ SY529 ) ) )
        = $false )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1133]) ).

thf(1237,plain,
    ! [SV258: $i,SV207: $i] :
      ( ( ( disjoint @ SV207 @ SV258 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV207 )
              | ~ ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV258 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1134]) ).

thf(1238,plain,
    ! [SV259: $i,SV208: $i] :
      ( ( ( ! [SY618: $i] :
              ( ~ ( in @ SY618 @ SV208 )
              | ~ ( in @ SY618 @ SV259 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV208 @ SV259 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1135]) ).

thf(1239,plain,
    ! [SV260: $i,SV209: $i] :
      ( ( ( ( SV209 = SV260 )
          | ~ ( subset @ SV209 @ SV260 ) )
        = $true )
      | ( ( proper_subset @ SV209 @ SV260 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1136]) ).

thf(1240,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1137]) ).

thf(1241,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1138]) ).

thf(1242,plain,
    ! [SV4: $i,SV99: $i,SV210: $i] :
      ( ( ( in @ SV210 @ SV99 )
        = $false )
      | ( ( in @ SV210 @ SV4 )
        = $true )
      | ( ( element @ SV99 @ ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1139]) ).

thf(1243,plain,
    ! [SV158: $i,SV108: $i,SV13: $i] :
      ( ( ( in @ SV13 @ SV108 )
        = $false )
      | ( ( element @ SV108 @ ( powerset @ SV158 ) )
        = $false )
      | ( ( element @ SV13 @ SV158 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1140]) ).

thf(1244,plain,
    ! [SV173: $i,SV159: $i,SV111: $i,SV17: $i] :
      ( ( ( ( unordered_pair @ SV17 @ SV111 )
          = ( unordered_pair @ SV159 @ SV173 ) )
        = $false )
      | ( ( SV17 = SV159 )
        = $true )
      | ( ( SV17 = SV173 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1142]) ).

thf(1245,plain,
    ! [SV174: $i,SV160: $i,SV112: $i,SV18: $i] :
      ( ( ( subset @ SV18 @ SV112 )
        = $false )
      | ( ( ~ ( subset @ SV160 @ SV174 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV18 @ SV160 ) @ ( cartesian_product2 @ SV112 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1143]) ).

thf(1246,plain,
    ! [SV115: $i,SV161: $i,SV21: $i] :
      ( ( ( subset @ SV21 @ SV161 )
        = $false )
      | ( ( subset @ SV21 @ SV115 )
        = $false )
      | ( ( subset @ SV21 @ ( set_intersection2 @ SV115 @ SV161 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1144]) ).

thf(1247,plain,
    ! [SV22: $i,SV162: $i,SV116: $i] :
      ( ( ( subset @ SV116 @ SV162 )
        = $false )
      | ( ( subset @ SV22 @ SV116 )
        = $false )
      | ( ( subset @ SV22 @ SV162 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1145]) ).

thf(1248,plain,
    ! [SV163: $i,SV34: $i,SV261: $i] :
      ( ( ( ~ ( element @ SV261 @ SV34 ) )
        = $true )
      | ( ( ( in @ SV261 @ SV163 )
          | ( in @ SV261 @ ( subset_complement @ SV34 @ SV163 ) ) )
        = $true )
      | ( ( element @ SV163 @ ( powerset @ SV34 ) )
        = $false )
      | ( ( SV34 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1147]) ).

thf(1249,plain,
    ! [SV164: $i,SV35: $i,SV126: $i] :
      ( ( ( in @ SV126 @ ( subset_complement @ SV35 @ SV164 ) )
        = $false )
      | ( ( ~ ( in @ SV126 @ SV164 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ SV35 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1148]) ).

thf(1250,plain,
    ! [SV165: $i,SV128: $i,SV37: $i] :
      ( ( ( subset @ SV37 @ SV128 )
        = $false )
      | ( ( disjoint @ SV128 @ SV165 )
        = $false )
      | ( ( disjoint @ SV37 @ SV165 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1149]) ).

thf(1251,plain,
    ! [SV41: $i,SV131: $i,SV166: $i] :
      ( ( ( subset @ SV166 @ SV131 )
        = $false )
      | ( ( subset @ SV41 @ SV131 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV41 @ SV166 ) @ SV131 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1150]) ).

thf(1252,plain,
    ! [SV141: $i,SV53: $i,SV168: $i] :
      ( ( ( element @ SV168 @ ( powerset @ SV53 ) )
        = $false )
      | ( ( element @ SV141 @ ( powerset @ SV53 ) )
        = $false )
      | ( ( element @ ( subset_difference @ SV53 @ SV141 @ SV168 ) @ ( powerset @ SV53 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1151]) ).

thf(1253,plain,
    ! [SV148: $i,SV67: $i,SV171: $i] :
      ( ( ( element @ SV171 @ ( powerset @ SV67 ) )
        = $false )
      | ( ( element @ SV148 @ ( powerset @ SV67 ) )
        = $false )
      | ( ( ( subset_difference @ SV67 @ SV148 @ SV171 )
          = ( set_difference @ SV148 @ SV171 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1152]) ).

thf(1254,plain,
    ! [SV172: $i,SV150: $i,SV74: $i] :
      ( ( ( in @ SV74 @ SV150 )
        = $false )
      | ( ( element @ SV150 @ ( powerset @ SV172 ) )
        = $false )
      | ( ( ~ ( empty @ SV172 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1153]) ).

thf(1255,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) )
        = $true )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1155]) ).

thf(1256,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
        = $true )
      | ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 )
        = $true )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1156]) ).

thf(1257,plain,
    ! [SV214: $i,SV176: $i] :
      ( ( ( in @ SV176 @ SV214 )
        = $false )
      | ( ( subset @ ( singleton @ SV176 ) @ SV214 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1157]) ).

thf(1258,plain,
    ! [SV215: $i,SV177: $i] :
      ( ( ( subset @ ( singleton @ SV177 ) @ SV215 )
        = $false )
      | ( ( in @ SV177 @ SV215 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1158]) ).

thf(1259,plain,
    ! [SV78: $i,SV277: $i] :
      ( ( ( ~ ( ~ ( ! [SY641: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ SY641 ) @ SV78 )
                  | ~ ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ ( sK23_SY312 @ SV277 @ SV78 ) ) @ SV78 )
                  | ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) ) )
          | ( SV277
            = ( relation_dom @ SV78 ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1159]) ).

thf(1260,plain,
    ! [SV78: $i,SV278: $i] :
      ( ( ( ( SV278
           != ( relation_dom @ SV78 ) )
          | ~ ( ~ ! [SY642: $i] :
                    ( ! [SY405: $i] :
                        ~ ( in @ ( ordered_pair @ SY642 @ SY405 ) @ SV78 )
                    | ( in @ SY642 @ SV278 ) )
              | ~ ! [SY644: $i] :
                    ( ~ ( in @ SY644 @ SV278 )
                    | ( in @ ( ordered_pair @ SY644 @ ( sK21_D @ SY644 @ SV278 @ SV78 ) ) @ SV78 ) ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1160]) ).

thf(1261,plain,
    ! [SV179: $i,SV279: $i] :
      ( ( ( ~ ( in @ SV279 @ SV179 ) )
        = $true )
      | ( ( SV179 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1161]) ).

thf(1262,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                        | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                         != SV79 ) )
                    | ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                        | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                         != SV216 ) ) )
              | ~ ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                  | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                    = SV79 )
                  | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                    = SV216 ) ) ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1162]) ).

thf(1263,plain,
    ! [SV217: $i,SV79: $i,SV263: $i] :
      ( ( ( ( SV263
           != ( unordered_pair @ SV79 @ SV217 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY619: $i] :
                    ( ~ ( in @ SY619 @ SV263 )
                    | ( SY619 = SV79 )
                    | ( SY619 = SV217 ) )
              | ~ ~ ( ~ ! [SY620: $i] :
                          ( ( SY620 != SV79 )
                          | ( in @ SY620 @ SV263 ) )
                    | ~ ! [SY621: $i] :
                          ( ( SY621 != SV217 )
                          | ( in @ SY621 @ SV263 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1163]) ).

thf(1264,plain,
    ! [SV80: $i,SV218: $i] :
      ( ( ( ~ ( subset @ SV218 @ ( sK9_B @ SV80 ) ) )
        = $true )
      | ( ( are_equipotent @ SV218 @ ( sK9_B @ SV80 ) )
        = $true )
      | ( ( in @ SV218 @ ( sK9_B @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1164]) ).

thf(1265,plain,
    ! [SV80: $i] :
      ( ( ! [SY415: $i] :
            ( ~ ( in @ SY415 @ ( sK9_B @ SV80 ) )
            | ( in @ ( powerset @ SY415 ) @ ( sK9_B @ SV80 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1165]) ).

thf(1266,plain,
    ! [SV80: $i] :
      ( ( ~ ( ~ ! [SY416: $i,SY417: $i] :
                  ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
                  | ~ ( subset @ SY417 @ SY416 )
                  | ( in @ SY417 @ ( sK9_B @ SV80 ) ) )
            | ~ ( in @ SV80 @ ( sK9_B @ SV80 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1166]) ).

thf(1267,plain,
    ! [SV219: $i,SV180: $i] :
      ( ( ( in @ SV180 @ SV219 )
        = $false )
      | ( ( subset @ ( singleton @ SV180 ) @ SV219 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1167]) ).

thf(1268,plain,
    ! [SV220: $i,SV181: $i] :
      ( ( ( subset @ ( singleton @ SV181 ) @ SV220 )
        = $false )
      | ( ( in @ SV181 @ SV220 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1168]) ).

thf(1269,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                        | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) )
                    | ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                        | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) )
              | ~ ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                  | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 )
                  | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1169]) ).

thf(1270,plain,
    ! [SV222: $i,SV82: $i,SV265: $i] :
      ( ( ( ( SV265
           != ( set_union2 @ SV82 @ SV222 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY622: $i] :
                    ( ~ ( in @ SY622 @ SV265 )
                    | ( in @ SY622 @ SV82 )
                    | ( in @ SY622 @ SV222 ) )
              | ~ ~ ( ~ ! [SY623: $i] :
                          ( ~ ( in @ SY623 @ SV82 )
                          | ( in @ SY623 @ SV265 ) )
                    | ~ ! [SY624: $i] :
                          ( ~ ( in @ SY624 @ SV222 )
                          | ( in @ SY624 @ SV265 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1170]) ).

thf(1271,plain,
    ! [SV223: $i,SV182: $i] :
      ( ( ( ~ ( subset @ SV182 @ SV223 ) )
        = $true )
      | ( ( ~ ( subset @ SV223 @ SV182 ) )
        = $true )
      | ( ( SV182 = SV223 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1171]) ).

thf(1272,plain,
    ! [SV280: $i] :
      ( ( ! [SY645: $i] :
            ( ( SV280 != SY645 )
            | ( subset @ SV280 @ SY645 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1172]) ).

thf(1273,plain,
    ! [SV281: $i] :
      ( ( ! [SY646: $i] :
            ( ( SV281 != SY646 )
            | ( subset @ SY646 @ SV281 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1173]) ).

thf(1274,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
              | ~ ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) )
          | ~ ( ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
              | ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) ) )
        = $false )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1174]) ).

thf(1275,plain,
    ! [SV184: $i,SV225: $i] :
      ( ( ( SV225
          = ( powerset @ SV184 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY587: $i] :
                    ( ~ ( in @ SY587 @ SV225 )
                    | ( subset @ SY587 @ SV184 ) )
              | ~ ! [SY588: $i] :
                    ( ~ ( subset @ SY588 @ SV184 )
                    | ( in @ SY588 @ SV225 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1175]) ).

thf(1276,plain,
    ! [SV282: $i,SV153: $i,SV266: $i,SV83: $i] :
      ( ( ~ ( in @ SV83 @ SV266 )
        | ~ ( in @ SV153 @ SV282 )
        | ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV266 @ SV282 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1176]) ).

thf(1277,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ~ ! [SY514: $i] :
              ( ! [SY515: $i] :
                  ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY514 @ SY515 ) )
              | ( in @ SV83 @ SY514 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1177]) ).

thf(1278,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ~ ! [SY516: $i,SY517: $i] :
              ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY516 @ SY517 ) )
              | ( in @ SV153 @ SY517 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1177]) ).

thf(1279,plain,
    ! [SV84: $i,SV226: $i] :
      ( ( ( ~ ( subset @ SV226 @ ( sK10_B @ SV84 ) ) )
        = $true )
      | ( ( are_equipotent @ SV226 @ ( sK10_B @ SV84 ) )
        = $true )
      | ( ( in @ SV226 @ ( sK10_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1178]) ).

thf(1280,plain,
    ! [SV84: $i] :
      ( ( ! [SY433: $i] :
            ( ~ ( ~ ! [SY434: $i] :
                      ( ~ ( subset @ SY434 @ SY433 )
                      | ( in @ SY434 @ ( sK11_SY302 @ SY433 @ SV84 ) ) )
                | ~ ( in @ ( sK11_SY302 @ SY433 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
            | ~ ( in @ SY433 @ ( sK10_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1179]) ).

thf(1281,plain,
    ! [SV84: $i] :
      ( ( ~ ( ~ ! [SY435: $i,SY436: $i] :
                  ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
                  | ~ ( subset @ SY436 @ SY435 )
                  | ( in @ SY436 @ ( sK10_B @ SV84 ) ) )
            | ~ ( in @ SV84 @ ( sK10_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1180]) ).

thf(1282,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ~ ( ! [SY589: $i] :
                  ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SY589 )
                  | ~ ( in @ SY589 @ SV185 ) )
              | ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
          | ~ ( ~ ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ ( sK20_SY310 @ SV227 @ SV185 ) )
                  | ~ ( in @ ( sK20_SY310 @ SV227 @ SV185 ) @ SV185 ) )
              | ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) ) )
        = $false )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1181]) ).

thf(1283,plain,
    ! [SV186: $i,SV228: $i] :
      ( ( ( SV228
          = ( union @ SV186 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY590: $i] :
                    ( ! [SY547: $i] :
                        ( ~ ( in @ SY590 @ SY547 )
                        | ~ ( in @ SY547 @ SV186 ) )
                    | ( in @ SY590 @ SV228 ) )
              | ~ ! [SY592: $i] :
                    ( ~ ( in @ SY592 @ SV228 )
                    | ~ ( ~ ( in @ SY592 @ ( sK18_D @ SY592 @ SV228 @ SV186 ) )
                        | ~ ( in @ ( sK18_D @ SY592 @ SV228 @ SV186 ) @ SV186 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1182]) ).

thf(1284,plain,
    ! [SV267: $i,SV154: $i,SV85: $i] :
      ( ( ( ! [SY626: $i] :
              ( ( ordered_pair @ SV85 @ SV154 )
             != ( ordered_pair @ SV267 @ SY626 ) ) )
        = $true )
      | ( ( SV85 = SV267 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1183]) ).

thf(1285,plain,
    ! [SV283: $i,SV268: $i,SV154: $i,SV85: $i] :
      ( ( ( ( ordered_pair @ SV85 @ SV154 )
         != ( ordered_pair @ SV268 @ SV283 ) )
        | ( SV154 = SV283 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1184]) ).

thf(1286,plain,
    ! [SV229: $i,SV86: $i] :
      ( ( ( subset @ SV86 @ SV229 )
        = $false )
      | ( ( ! [SY593: $i] : ( subset @ ( cartesian_product2 @ SV86 @ SY593 ) @ ( cartesian_product2 @ SV229 @ SY593 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1185]) ).

thf(1287,plain,
    ! [SV230: $i,SV86: $i] :
      ( ( ( subset @ SV86 @ SV230 )
        = $false )
      | ( ( ! [SY594: $i] : ( subset @ ( cartesian_product2 @ SY594 @ SV86 ) @ ( cartesian_product2 @ SY594 @ SV230 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1186]) ).

thf(1288,plain,
    ! [SV231: $i,SV187: $i] :
      ( ( ( ( set_difference @ SV187 @ SV231 )
          = SV187 )
        = $false )
      | ( ( disjoint @ SV187 @ SV231 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1187]) ).

thf(1289,plain,
    ! [SV232: $i,SV188: $i] :
      ( ( ( disjoint @ SV188 @ SV232 )
        = $false )
      | ( ( ( set_difference @ SV188 @ SV232 )
          = SV188 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1188]) ).

thf(1290,plain,
    ! [SV233: $i,SV189: $i] :
      ( ( ( element @ SV189 @ ( powerset @ SV233 ) )
        = $false )
      | ( ( subset @ SV189 @ SV233 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1189]) ).

thf(1291,plain,
    ! [SV234: $i,SV190: $i] :
      ( ( ( subset @ SV190 @ SV234 )
        = $false )
      | ( ( element @ SV190 @ ( powerset @ SV234 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1190]) ).

thf(1292,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
                  | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
                  | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
              | ~ ~ ( ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
                        | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
                    | ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
                        | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) ) ) ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1191]) ).

thf(1293,plain,
    ! [SV236: $i,SV87: $i,SV270: $i] :
      ( ( ( ( SV270
           != ( set_intersection2 @ SV87 @ SV236 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY628: $i] :
                    ( ~ ( in @ SY628 @ SV87 )
                    | ~ ( in @ SY628 @ SV236 )
                    | ( in @ SY628 @ SV270 ) )
              | ~ ~ ( ~ ! [SY629: $i] :
                          ( ~ ( in @ SY629 @ SV270 )
                          | ( in @ SY629 @ SV87 ) )
                    | ~ ! [SY630: $i] :
                          ( ~ ( in @ SY630 @ SV270 )
                          | ( in @ SY630 @ SV236 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1192]) ).

thf(1294,plain,
    ! [SV89: $i,SV155: $i] :
      ( ( ( in @ ( sK41_C @ SV155 @ SV89 ) @ SV155 )
        = $false )
      | ( ( element @ SV89 @ ( powerset @ SV155 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1195]) ).

thf(1295,plain,
    ! [SV237: $i,SV271: $i,SV90: $i] :
      ( ( ( ~ ( in @ SV90 @ SV271 )
          | ~ ( in @ SV237 @ SV271 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV90 @ SV237 ) @ SV271 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1196]) ).

thf(1296,plain,
    ! [SV90: $i] :
      ( ( ! [SY456: $i,SY457: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV90 @ SY456 ) @ SY457 )
            | ( in @ SV90 @ SY457 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1197]) ).

thf(1297,plain,
    ! [SV90: $i] :
      ( ( ! [SY458: $i,SY459: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV90 @ SY458 ) @ SY459 )
            | ( in @ SY458 @ SY459 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1198]) ).

thf(1298,plain,
    ! [SV238: $i,SV191: $i] :
      ( ( ( ( set_difference @ SV191 @ ( singleton @ SV238 ) )
          = SV191 )
        = $false )
      | ( ( ~ ( in @ SV238 @ SV191 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1199]) ).

thf(1299,plain,
    ! [SV240: $i,SV193: $i] :
      ( ( ( ( set_difference @ SV193 @ SV240 )
          = empty_set )
        = $false )
      | ( ( subset @ SV193 @ SV240 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1201]) ).

thf(1300,plain,
    ! [SV241: $i,SV194: $i] :
      ( ( ( subset @ SV194 @ SV241 )
        = $false )
      | ( ( ( set_difference @ SV194 @ SV241 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1202]) ).

thf(1301,plain,
    ! [SV195: $i,SV242: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV195 )
          | ~ ~ ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV242 ) )
        = $false )
      | ( ( subset @ SV195 @ SV242 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1203]) ).

thf(1302,plain,
    ! [SV243: $i,SV196: $i] :
      ( ( ( subset @ SV196 @ SV243 )
        = $false )
      | ( ( ! [SY601: $i] :
              ( ~ ( in @ SY601 @ SV196 )
              | ( in @ SY601 @ SV243 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1204]) ).

thf(1303,plain,
    ! [SV272: $i,SV244: $i,SV91: $i] :
      ( ( ( ~ ( ~ ( ! [SY631: $i,SY632: $i] :
                      ( ~ ( in @ SY631 @ SV91 )
                      | ~ ( in @ SY632 @ SV244 )
                      | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
                       != ( ordered_pair @ SY631 @ SY632 ) ) )
                  | ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
              | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
                            | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) )
                      | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
                       != ( ordered_pair @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) ) ) )
                  | ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) ) ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1205]) ).

thf(1304,plain,
    ! [SV245: $i,SV91: $i,SV273: $i] :
      ( ( ( ( SV273
           != ( cartesian_product2 @ SV91 @ SV245 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY633: $i] :
                    ( ! [SY607: $i,SY608: $i] :
                        ( ~ ( in @ SY607 @ SV91 )
                        | ~ ( in @ SY608 @ SV245 )
                        | ( SY633
                         != ( ordered_pair @ SY607 @ SY608 ) ) )
                    | ( in @ SY633 @ SV273 ) )
              | ~ ! [SY636: $i] :
                    ( ~ ( in @ SY636 @ SV273 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                              | ~ ( in @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
                        | ( SY636
                         != ( ordered_pair @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1206]) ).

thf(1305,plain,
    ! [SV247: $i,SV198: $i,SV284: $i] :
      ( ( ( ~ ( in @ SV284 @ ( set_intersection2 @ SV198 @ SV247 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV198 @ SV247 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1208]) ).

thf(1306,plain,
    ! [SV248: $i,SV199: $i] :
      ( ( ( subset @ SV199 @ ( singleton @ SV248 ) )
        = $false )
      | ( ( ( SV199 = empty_set )
          | ( SV199
            = ( singleton @ SV248 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1209]) ).

thf(1307,plain,
    ! [SV285: $i] :
      ( ( ( SV285 != empty_set )
        | ! [SY647: $i] : ( subset @ SV285 @ ( singleton @ SY647 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1210]) ).

thf(1308,plain,
    ! [SV286: $i] :
      ( ( ! [SY648: $i] :
            ( ( SV286
             != ( singleton @ SY648 ) )
            | ( subset @ SV286 @ ( singleton @ SY648 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1211]) ).

thf(1309,plain,
    ! [SV249: $i,SV200: $i] :
      ( ( ( ( set_intersection2 @ SV200 @ SV249 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV200 @ SV249 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1212]) ).

thf(1310,plain,
    ! [SV250: $i,SV201: $i] :
      ( ( ( disjoint @ SV201 @ SV250 )
        = $false )
      | ( ( ( set_intersection2 @ SV201 @ SV250 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1213]) ).

thf(1311,plain,
    ! [SV251: $i,SV202: $i] :
      ( ( ( ( set_difference @ SV202 @ SV251 )
          = empty_set )
        = $false )
      | ( ( subset @ SV202 @ SV251 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1214]) ).

thf(1312,plain,
    ! [SV252: $i,SV203: $i] :
      ( ( ( subset @ SV203 @ SV252 )
        = $false )
      | ( ( ( set_difference @ SV203 @ SV252 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1215]) ).

thf(1313,plain,
    ! [SV287: $i] :
      ( ( ( empty @ SV287 )
        | ! [SY649: $i] :
            ( ~ ( element @ SY649 @ SV287 )
            | ( in @ SY649 @ SV287 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1216]) ).

thf(1314,plain,
    ! [SV288: $i] :
      ( ( ( empty @ SV288 )
        | ! [SY650: $i] :
            ( ~ ( in @ SY650 @ SV288 )
            | ( element @ SY650 @ SV288 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1217]) ).

thf(1315,plain,
    ! [SV289: $i] :
      ( ( ~ ( empty @ SV289 )
        | ! [SY651: $i] :
            ( ~ ( element @ SY651 @ SV289 )
            | ( empty @ SY651 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1218]) ).

thf(1316,plain,
    ! [SV290: $i] :
      ( ( ~ ( empty @ SV290 )
        | ! [SY652: $i] :
            ( ~ ( empty @ SY652 )
            | ( element @ SY652 @ SV290 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1219]) ).

thf(1317,plain,
    ! [SV92: $i,SV291: $i] :
      ( ( ( ~ ( ~ ( ! [SY653: $i] :
                      ~ ( in @ ( ordered_pair @ SY653 @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
                  | ~ ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV291 @ SV92 ) @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
                  | ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) ) )
          | ( SV291
            = ( relation_rng @ SV92 ) ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1220]) ).

thf(1318,plain,
    ! [SV92: $i,SV292: $i] :
      ( ( ( ( SV292
           != ( relation_rng @ SV92 ) )
          | ~ ( ~ ! [SY654: $i] :
                    ( ! [SY474: $i] :
                        ~ ( in @ ( ordered_pair @ SY474 @ SY654 ) @ SV92 )
                    | ( in @ SY654 @ SV292 ) )
              | ~ ! [SY656: $i] :
                    ( ~ ( in @ SY656 @ SV292 )
                    | ( in @ ( ordered_pair @ ( sK14_D @ SY656 @ SV292 @ SV92 ) @ SY656 ) @ SV92 ) ) ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1221]) ).

thf(1319,plain,
    ! [SV293: $i,SV156: $i,SV274: $i,SV93: $i] :
      ( ( ~ ( in @ SV93 @ SV274 )
        | ~ ( in @ SV156 @ SV293 )
        | ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV274 @ SV293 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1222]) ).

thf(1320,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ~ ! [SY524: $i] :
              ( ! [SY525: $i] :
                  ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY524 @ SY525 ) )
              | ( in @ SV93 @ SY524 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1223]) ).

thf(1321,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ~ ! [SY526: $i,SY527: $i] :
              ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY526 @ SY527 ) )
              | ( in @ SV156 @ SY527 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1223]) ).

thf(1322,plain,
    ! [SV253: $i,SV204: $i] :
      ( ( ( subset @ SV204 @ ( singleton @ SV253 ) )
        = $false )
      | ( ( ( SV204 = empty_set )
          | ( SV204
            = ( singleton @ SV253 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1224]) ).

thf(1323,plain,
    ! [SV294: $i] :
      ( ( ( SV294 != empty_set )
        | ! [SY657: $i] : ( subset @ SV294 @ ( singleton @ SY657 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1225]) ).

thf(1324,plain,
    ! [SV295: $i] :
      ( ( ! [SY658: $i] :
            ( ( SV295
             != ( singleton @ SY658 ) )
            | ( subset @ SV295 @ ( singleton @ SY658 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1226]) ).

thf(1325,plain,
    ! [SV296: $i] :
      ( ( ( SV296 = empty_set )
        | ! [SY659: $i] :
            ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SY659 @ SV296 ) @ SV296 )
                        | ~ ~ ( in @ ( sK37_C @ SY659 @ SV296 ) @ ( sK38_SY319 @ SY659 @ SV296 ) ) )
                    | ~ ( in @ ( sK37_C @ SY659 @ SV296 ) @ SY659 ) )
                | ~ ( ! [SY660: $i] :
                        ( ~ ( in @ SY660 @ SV296 )
                        | ( in @ ( sK37_C @ SY659 @ SV296 ) @ SY660 ) )
                    | ( in @ ( sK37_C @ SY659 @ SV296 ) @ SY659 ) ) )
            | ( SY659
              = ( set_meet @ SV296 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1227]) ).

thf(1326,plain,
    ! [SV297: $i] :
      ( ( ( SV297 = empty_set )
        | ! [SY661: $i] :
            ( ( SY661
             != ( set_meet @ SV297 ) )
            | ~ ( ~ ! [SY662: $i] :
                      ( ~ ( ~ ( in @ ( sK36_D @ SY662 @ SY661 @ SV297 ) @ SV297 )
                          | ~ ~ ( in @ SY662 @ ( sK36_D @ SY662 @ SY661 @ SV297 ) ) )
                      | ( in @ SY662 @ SY661 ) )
                | ~ ! [SY663: $i] :
                      ( ~ ( in @ SY663 @ SY661 )
                      | ! [SY664: $i] :
                          ( ~ ( in @ SY664 @ SV297 )
                          | ( in @ SY663 @ SY664 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1228]) ).

thf(1327,plain,
    ! [SV298: $i] :
      ( ( ( SV298 != empty_set )
        | ! [SY665: $i] :
            ( ( SY665
             != ( set_meet @ SV298 ) )
            | ( SY665 = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1229]) ).

thf(1328,plain,
    ! [SV299: $i] :
      ( ( ( SV299 != empty_set )
        | ! [SY666: $i] :
            ( ( SY666 != empty_set )
            | ( SY666
              = ( set_meet @ SV299 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1230]) ).

thf(1329,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( ~ ( ( ( sK35_C @ SV254 @ SV205 )
               != SV205 )
              | ~ ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) )
          | ~ ( ( ( sK35_C @ SV254 @ SV205 )
                = SV205 )
              | ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) ) )
        = $false )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1231]) ).

thf(1330,plain,
    ! [SV206: $i,SV255: $i] :
      ( ( ( SV255
          = ( singleton @ SV206 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY611: $i] :
                    ( ( SY611 != SV206 )
                    | ( in @ SY611 @ SV255 ) )
              | ~ ! [SY612: $i] :
                    ( ~ ( in @ SY612 @ SV255 )
                    | ( SY612 = SV206 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1232]) ).

thf(1331,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
                  | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
                  | ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
              | ~ ~ ( ~ ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
                        | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
                    | ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
                        | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) ) ) ) )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1233]) ).

thf(1332,plain,
    ! [SV257: $i,SV94: $i,SV276: $i] :
      ( ( ( ( SV276
           != ( set_difference @ SV94 @ SV257 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY638: $i] :
                    ( ~ ( in @ SY638 @ SV94 )
                    | ( in @ SY638 @ SV257 )
                    | ( in @ SY638 @ SV276 ) )
              | ~ ~ ( ~ ! [SY639: $i] :
                          ( ~ ( in @ SY639 @ SV276 )
                          | ( in @ SY639 @ SV94 ) )
                    | ~ ! [SY640: $i] :
                          ( ~ ( in @ SY640 @ SV276 )
                          | ~ ( in @ SY640 @ SV257 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1234]) ).

thf(1333,plain,
    ! [SV157: $i,SV95: $i] :
      ( ( ( ! [SY528: $i] :
              ( ~ ( element @ SY528 @ ( powerset @ SV95 ) )
              | ~ ( disjoint @ SV157 @ SY528 )
              | ( subset @ SV157 @ ( subset_complement @ SV95 @ SY528 ) ) ) )
        = $true )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1235]) ).

thf(1334,plain,
    ! [SV157: $i,SV95: $i] :
      ( ( ( ! [SY529: $i] :
              ( ~ ( element @ SY529 @ ( powerset @ SV95 ) )
              | ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SY529 ) )
              | ( disjoint @ SV157 @ SY529 ) ) )
        = $true )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1236]) ).

thf(1335,plain,
    ! [SV207: $i,SV258: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV207 )
          | ~ ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV258 ) )
        = $false )
      | ( ( disjoint @ SV207 @ SV258 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1237]) ).

thf(1336,plain,
    ! [SV259: $i,SV208: $i,SV300: $i] :
      ( ( ( ~ ( in @ SV300 @ SV208 )
          | ~ ( in @ SV300 @ SV259 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV208 @ SV259 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1238]) ).

thf(1337,plain,
    ! [SV260: $i,SV209: $i] :
      ( ( ( SV209 = SV260 )
        = $true )
      | ( ( ~ ( subset @ SV209 @ SV260 ) )
        = $true )
      | ( ( proper_subset @ SV209 @ SV260 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1239]) ).

thf(1338,plain,
    ! [SV301: $i] :
      ( ( ! [SY667: $i] :
            ( ~ ( proper_subset @ SV301 @ SY667 )
            | ( SV301 != SY667 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1240]) ).

thf(1339,plain,
    ! [SV302: $i] :
      ( ( ! [SY668: $i] :
            ( ~ ( proper_subset @ SV302 @ SY668 )
            | ( subset @ SV302 @ SY668 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1241]) ).

thf(1340,plain,
    ! [SV112: $i,SV18: $i,SV174: $i,SV160: $i] :
      ( ( ( subset @ SV160 @ SV174 )
        = $false )
      | ( ( subset @ SV18 @ SV112 )
        = $false )
      | ( ( subset @ ( cartesian_product2 @ SV18 @ SV160 ) @ ( cartesian_product2 @ SV112 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1245]) ).

thf(1341,plain,
    ! [SV163: $i,SV34: $i,SV261: $i] :
      ( ( ( element @ SV261 @ SV34 )
        = $false )
      | ( ( ( in @ SV261 @ SV163 )
          | ( in @ SV261 @ ( subset_complement @ SV34 @ SV163 ) ) )
        = $true )
      | ( ( element @ SV163 @ ( powerset @ SV34 ) )
        = $false )
      | ( ( SV34 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1248]) ).

thf(1342,plain,
    ! [SV35: $i,SV164: $i,SV126: $i] :
      ( ( ( in @ SV126 @ SV164 )
        = $false )
      | ( ( in @ SV126 @ ( subset_complement @ SV35 @ SV164 ) )
        = $false )
      | ( ( element @ SV164 @ ( powerset @ SV35 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1249]) ).

thf(1343,plain,
    ! [SV74: $i,SV150: $i,SV172: $i] :
      ( ( ( empty @ SV172 )
        = $false )
      | ( ( element @ SV150 @ ( powerset @ SV172 ) )
        = $false )
      | ( ( in @ SV74 @ SV150 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1254]) ).

thf(1344,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
        = $false )
      | ( ( ~ ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 ) )
        = $true )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1255]) ).

thf(1345,plain,
    ! [SV78: $i,SV277: $i] :
      ( ( ( ~ ( ~ ( ! [SY641: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ SY641 ) @ SV78 )
                  | ~ ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ ( sK23_SY312 @ SV277 @ SV78 ) ) @ SV78 )
                  | ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) ) ) )
        = $true )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1259]) ).

thf(1346,plain,
    ! [SV78: $i,SV278: $i] :
      ( ( ( ( SV278
           != ( relation_dom @ SV78 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY642: $i] :
                    ( ! [SY405: $i] :
                        ~ ( in @ ( ordered_pair @ SY642 @ SY405 ) @ SV78 )
                    | ( in @ SY642 @ SV278 ) )
              | ~ ! [SY644: $i] :
                    ( ~ ( in @ SY644 @ SV278 )
                    | ( in @ ( ordered_pair @ SY644 @ ( sK21_D @ SY644 @ SV278 @ SV78 ) ) @ SV78 ) ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1260]) ).

thf(1347,plain,
    ! [SV179: $i,SV279: $i] :
      ( ( ( in @ SV279 @ SV179 )
        = $false )
      | ( ( SV179 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1261]) ).

thf(1348,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                    | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                     != SV79 ) )
                | ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                    | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                     != SV216 ) ) )
          | ~ ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
              | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                = SV79 )
              | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                = SV216 ) ) )
        = $false )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1262]) ).

thf(1349,plain,
    ! [SV217: $i,SV79: $i,SV263: $i] :
      ( ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY619: $i] :
                    ( ~ ( in @ SY619 @ SV263 )
                    | ( SY619 = SV79 )
                    | ( SY619 = SV217 ) )
              | ~ ~ ( ~ ! [SY620: $i] :
                          ( ( SY620 != SV79 )
                          | ( in @ SY620 @ SV263 ) )
                    | ~ ! [SY621: $i] :
                          ( ( SY621 != SV217 )
                          | ( in @ SY621 @ SV263 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1263]) ).

thf(1350,plain,
    ! [SV80: $i,SV218: $i] :
      ( ( ( subset @ SV218 @ ( sK9_B @ SV80 ) )
        = $false )
      | ( ( are_equipotent @ SV218 @ ( sK9_B @ SV80 ) )
        = $true )
      | ( ( in @ SV218 @ ( sK9_B @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1264]) ).

thf(1351,plain,
    ! [SV80: $i,SV303: $i] :
      ( ( ~ ( in @ SV303 @ ( sK9_B @ SV80 ) )
        | ( in @ ( powerset @ SV303 ) @ ( sK9_B @ SV80 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1265]) ).

thf(1352,plain,
    ! [SV80: $i] :
      ( ( ~ ! [SY416: $i,SY417: $i] :
              ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
              | ~ ( subset @ SY417 @ SY416 )
              | ( in @ SY417 @ ( sK9_B @ SV80 ) ) )
        | ~ ( in @ SV80 @ ( sK9_B @ SV80 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1266]) ).

thf(1353,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                    | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) )
                | ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                    | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) )
          | ~ ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
              | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 )
              | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) )
        = $false )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1269]) ).

thf(1354,plain,
    ! [SV222: $i,SV82: $i,SV265: $i] :
      ( ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY622: $i] :
                    ( ~ ( in @ SY622 @ SV265 )
                    | ( in @ SY622 @ SV82 )
                    | ( in @ SY622 @ SV222 ) )
              | ~ ~ ( ~ ! [SY623: $i] :
                          ( ~ ( in @ SY623 @ SV82 )
                          | ( in @ SY623 @ SV265 ) )
                    | ~ ! [SY624: $i] :
                          ( ~ ( in @ SY624 @ SV222 )
                          | ( in @ SY624 @ SV265 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1270]) ).

thf(1355,plain,
    ! [SV223: $i,SV182: $i] :
      ( ( ( subset @ SV182 @ SV223 )
        = $false )
      | ( ( ~ ( subset @ SV223 @ SV182 ) )
        = $true )
      | ( ( SV182 = SV223 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1271]) ).

thf(1356,plain,
    ! [SV304: $i,SV280: $i] :
      ( ( ( SV280 != SV304 )
        | ( subset @ SV280 @ SV304 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1272]) ).

thf(1357,plain,
    ! [SV305: $i,SV281: $i] :
      ( ( ( SV281 != SV305 )
        | ( subset @ SV305 @ SV281 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1273]) ).

thf(1358,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
              | ~ ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) ) )
        = $false )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1274]) ).

thf(1359,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( ~ ( ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
              | ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) ) )
        = $false )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1274]) ).

thf(1360,plain,
    ! [SV184: $i,SV225: $i] :
      ( ( ( ~ ! [SY587: $i] :
                ( ~ ( in @ SY587 @ SV225 )
                | ( subset @ SY587 @ SV184 ) )
          | ~ ! [SY588: $i] :
                ( ~ ( subset @ SY588 @ SV184 )
                | ( in @ SY588 @ SV225 ) ) )
        = $false )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1275]) ).

thf(1361,plain,
    ! [SV282: $i,SV153: $i,SV266: $i,SV83: $i] :
      ( ( ( ~ ( in @ SV83 @ SV266 )
          | ~ ( in @ SV153 @ SV282 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV266 @ SV282 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1276]) ).

thf(1362,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ! [SY514: $i] :
            ( ! [SY515: $i] :
                ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY514 @ SY515 ) )
            | ( in @ SV83 @ SY514 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1277]) ).

thf(1363,plain,
    ! [SV153: $i,SV83: $i] :
      ( ( ! [SY516: $i,SY517: $i] :
            ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SY516 @ SY517 ) )
            | ( in @ SV153 @ SY517 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1278]) ).

thf(1364,plain,
    ! [SV84: $i,SV226: $i] :
      ( ( ( subset @ SV226 @ ( sK10_B @ SV84 ) )
        = $false )
      | ( ( are_equipotent @ SV226 @ ( sK10_B @ SV84 ) )
        = $true )
      | ( ( in @ SV226 @ ( sK10_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1279]) ).

thf(1365,plain,
    ! [SV84: $i,SV306: $i] :
      ( ( ~ ( ~ ! [SY669: $i] :
                  ( ~ ( subset @ SY669 @ SV306 )
                  | ( in @ SY669 @ ( sK11_SY302 @ SV306 @ SV84 ) ) )
            | ~ ( in @ ( sK11_SY302 @ SV306 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
        | ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1280]) ).

thf(1366,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY435: $i,SY436: $i] :
              ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
              | ~ ( subset @ SY436 @ SY435 )
              | ( in @ SY436 @ ( sK10_B @ SV84 ) ) )
        | ~ ( in @ SV84 @ ( sK10_B @ SV84 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1281]) ).

thf(1367,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ~ ( ! [SY589: $i] :
                  ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SY589 )
                  | ~ ( in @ SY589 @ SV185 ) )
              | ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) ) )
        = $false )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1282]) ).

thf(1368,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ ( sK20_SY310 @ SV227 @ SV185 ) )
                  | ~ ( in @ ( sK20_SY310 @ SV227 @ SV185 ) @ SV185 ) )
              | ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) ) )
        = $false )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1282]) ).

thf(1369,plain,
    ! [SV228: $i,SV186: $i] :
      ( ( ( ~ ! [SY590: $i] :
                ( ! [SY547: $i] :
                    ( ~ ( in @ SY590 @ SY547 )
                    | ~ ( in @ SY547 @ SV186 ) )
                | ( in @ SY590 @ SV228 ) )
          | ~ ! [SY592: $i] :
                ( ~ ( in @ SY592 @ SV228 )
                | ~ ( ~ ( in @ SY592 @ ( sK18_D @ SY592 @ SV228 @ SV186 ) )
                    | ~ ( in @ ( sK18_D @ SY592 @ SV228 @ SV186 ) @ SV186 ) ) ) )
        = $false )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1283]) ).

thf(1370,plain,
    ! [SV307: $i,SV267: $i,SV154: $i,SV85: $i] :
      ( ( ( ( ( ordered_pair @ SV85 @ SV154 )
           != ( ordered_pair @ SV267 @ SV307 ) ) )
        = $true )
      | ( ( SV85 = SV267 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1284]) ).

thf(1371,plain,
    ! [SV283: $i,SV268: $i,SV154: $i,SV85: $i] :
      ( ( ( ( ( ordered_pair @ SV85 @ SV154 )
           != ( ordered_pair @ SV268 @ SV283 ) ) )
        = $true )
      | ( ( SV154 = SV283 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1285]) ).

thf(1372,plain,
    ! [SV229: $i,SV308: $i,SV86: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV86 @ SV308 ) @ ( cartesian_product2 @ SV229 @ SV308 ) )
        = $true )
      | ( ( subset @ SV86 @ SV229 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1286]) ).

thf(1373,plain,
    ! [SV230: $i,SV86: $i,SV309: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV309 @ SV86 ) @ ( cartesian_product2 @ SV309 @ SV230 ) )
        = $true )
      | ( ( subset @ SV86 @ SV230 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1287]) ).

thf(1374,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
              | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
              | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
          | ~ ~ ( ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
                    | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
                | ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
                    | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1292]) ).

thf(1375,plain,
    ! [SV236: $i,SV87: $i,SV270: $i] :
      ( ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY628: $i] :
                    ( ~ ( in @ SY628 @ SV87 )
                    | ~ ( in @ SY628 @ SV236 )
                    | ( in @ SY628 @ SV270 ) )
              | ~ ~ ( ~ ! [SY629: $i] :
                          ( ~ ( in @ SY629 @ SV270 )
                          | ( in @ SY629 @ SV87 ) )
                    | ~ ! [SY630: $i] :
                          ( ~ ( in @ SY630 @ SV270 )
                          | ( in @ SY630 @ SV236 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1293]) ).

thf(1376,plain,
    ! [SV237: $i,SV271: $i,SV90: $i] :
      ( ( ( ~ ( in @ SV90 @ SV271 ) )
        = $true )
      | ( ( ~ ( in @ SV237 @ SV271 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV90 @ SV237 ) @ SV271 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1295]) ).

thf(1377,plain,
    ! [SV310: $i,SV90: $i] :
      ( ( ! [SY670: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV90 @ SV310 ) @ SY670 )
            | ( in @ SV90 @ SY670 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1296]) ).

thf(1378,plain,
    ! [SV311: $i,SV90: $i] :
      ( ( ! [SY671: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV90 @ SV311 ) @ SY671 )
            | ( in @ SV311 @ SY671 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1297]) ).

thf(1379,plain,
    ! [SV191: $i,SV238: $i] :
      ( ( ( in @ SV238 @ SV191 )
        = $false )
      | ( ( ( set_difference @ SV191 @ ( singleton @ SV238 ) )
          = SV191 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1298]) ).

thf(1380,plain,
    ! [SV195: $i,SV242: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV195 ) )
        = $false )
      | ( ( subset @ SV195 @ SV242 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1301]) ).

thf(1381,plain,
    ! [SV195: $i,SV242: $i] :
      ( ( ( ~ ~ ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV242 ) )
        = $false )
      | ( ( subset @ SV195 @ SV242 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1301]) ).

thf(1382,plain,
    ! [SV243: $i,SV196: $i,SV312: $i] :
      ( ( ( ~ ( in @ SV312 @ SV196 )
          | ( in @ SV312 @ SV243 ) )
        = $true )
      | ( ( subset @ SV196 @ SV243 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1302]) ).

thf(1383,plain,
    ! [SV272: $i,SV244: $i,SV91: $i] :
      ( ( ( ~ ( ! [SY631: $i,SY632: $i] :
                  ( ~ ( in @ SY631 @ SV91 )
                  | ~ ( in @ SY632 @ SV244 )
                  | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
                   != ( ordered_pair @ SY631 @ SY632 ) ) )
              | ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
          | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
                        | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) )
                  | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
                   != ( ordered_pair @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) ) ) )
              | ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) ) )
        = $false )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1303]) ).

thf(1384,plain,
    ! [SV245: $i,SV91: $i,SV273: $i] :
      ( ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY633: $i] :
                    ( ! [SY607: $i,SY608: $i] :
                        ( ~ ( in @ SY607 @ SV91 )
                        | ~ ( in @ SY608 @ SV245 )
                        | ( SY633
                         != ( ordered_pair @ SY607 @ SY608 ) ) )
                    | ( in @ SY633 @ SV273 ) )
              | ~ ! [SY636: $i] :
                    ( ~ ( in @ SY636 @ SV273 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                              | ~ ( in @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
                        | ( SY636
                         != ( ordered_pair @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1304]) ).

thf(1385,plain,
    ! [SV247: $i,SV198: $i,SV284: $i] :
      ( ( ( in @ SV284 @ ( set_intersection2 @ SV198 @ SV247 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV198 @ SV247 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1305]) ).

thf(1386,plain,
    ! [SV248: $i,SV199: $i] :
      ( ( ( SV199 = empty_set )
        = $true )
      | ( ( SV199
          = ( singleton @ SV248 ) )
        = $true )
      | ( ( subset @ SV199 @ ( singleton @ SV248 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1306]) ).

thf(1387,plain,
    ! [SV285: $i] :
      ( ( ( ( SV285 != empty_set ) )
        = $true )
      | ( ( ! [SY647: $i] : ( subset @ SV285 @ ( singleton @ SY647 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1307]) ).

thf(1388,plain,
    ! [SV313: $i,SV286: $i] :
      ( ( ( SV286
         != ( singleton @ SV313 ) )
        | ( subset @ SV286 @ ( singleton @ SV313 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1308]) ).

thf(1389,plain,
    ! [SV287: $i] :
      ( ( ( empty @ SV287 )
        = $true )
      | ( ( ! [SY649: $i] :
              ( ~ ( element @ SY649 @ SV287 )
              | ( in @ SY649 @ SV287 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1313]) ).

thf(1390,plain,
    ! [SV288: $i] :
      ( ( ( empty @ SV288 )
        = $true )
      | ( ( ! [SY650: $i] :
              ( ~ ( in @ SY650 @ SV288 )
              | ( element @ SY650 @ SV288 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1314]) ).

thf(1391,plain,
    ! [SV289: $i] :
      ( ( ( ~ ( empty @ SV289 ) )
        = $true )
      | ( ( ! [SY651: $i] :
              ( ~ ( element @ SY651 @ SV289 )
              | ( empty @ SY651 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1315]) ).

thf(1392,plain,
    ! [SV290: $i] :
      ( ( ( ~ ( empty @ SV290 ) )
        = $true )
      | ( ( ! [SY652: $i] :
              ( ~ ( empty @ SY652 )
              | ( element @ SY652 @ SV290 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1316]) ).

thf(1393,plain,
    ! [SV92: $i,SV291: $i] :
      ( ( ( ~ ( ~ ( ! [SY653: $i] :
                      ~ ( in @ ( ordered_pair @ SY653 @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
                  | ~ ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV291 @ SV92 ) @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
                  | ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) ) ) )
        = $true )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1317]) ).

thf(1394,plain,
    ! [SV92: $i,SV292: $i] :
      ( ( ( ( SV292
           != ( relation_rng @ SV92 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY654: $i] :
                    ( ! [SY474: $i] :
                        ~ ( in @ ( ordered_pair @ SY474 @ SY654 ) @ SV92 )
                    | ( in @ SY654 @ SV292 ) )
              | ~ ! [SY656: $i] :
                    ( ~ ( in @ SY656 @ SV292 )
                    | ( in @ ( ordered_pair @ ( sK14_D @ SY656 @ SV292 @ SV92 ) @ SY656 ) @ SV92 ) ) ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1318]) ).

thf(1395,plain,
    ! [SV293: $i,SV156: $i,SV274: $i,SV93: $i] :
      ( ( ( ~ ( in @ SV93 @ SV274 )
          | ~ ( in @ SV156 @ SV293 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV274 @ SV293 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1319]) ).

thf(1396,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ! [SY524: $i] :
            ( ! [SY525: $i] :
                ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY524 @ SY525 ) )
            | ( in @ SV93 @ SY524 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1320]) ).

thf(1397,plain,
    ! [SV156: $i,SV93: $i] :
      ( ( ! [SY526: $i,SY527: $i] :
            ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SY526 @ SY527 ) )
            | ( in @ SV156 @ SY527 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1321]) ).

thf(1398,plain,
    ! [SV253: $i,SV204: $i] :
      ( ( ( SV204 = empty_set )
        = $true )
      | ( ( SV204
          = ( singleton @ SV253 ) )
        = $true )
      | ( ( subset @ SV204 @ ( singleton @ SV253 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1322]) ).

thf(1399,plain,
    ! [SV294: $i] :
      ( ( ( ( SV294 != empty_set ) )
        = $true )
      | ( ( ! [SY657: $i] : ( subset @ SV294 @ ( singleton @ SY657 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1323]) ).

thf(1400,plain,
    ! [SV314: $i,SV295: $i] :
      ( ( ( SV295
         != ( singleton @ SV314 ) )
        | ( subset @ SV295 @ ( singleton @ SV314 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1324]) ).

thf(1401,plain,
    ! [SV296: $i] :
      ( ( ( SV296 = empty_set )
        = $true )
      | ( ( ! [SY659: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SY659 @ SV296 ) @ SV296 )
                          | ~ ~ ( in @ ( sK37_C @ SY659 @ SV296 ) @ ( sK38_SY319 @ SY659 @ SV296 ) ) )
                      | ~ ( in @ ( sK37_C @ SY659 @ SV296 ) @ SY659 ) )
                  | ~ ( ! [SY660: $i] :
                          ( ~ ( in @ SY660 @ SV296 )
                          | ( in @ ( sK37_C @ SY659 @ SV296 ) @ SY660 ) )
                      | ( in @ ( sK37_C @ SY659 @ SV296 ) @ SY659 ) ) )
              | ( SY659
                = ( set_meet @ SV296 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1325]) ).

thf(1402,plain,
    ! [SV297: $i] :
      ( ( ( SV297 = empty_set )
        = $true )
      | ( ( ! [SY661: $i] :
              ( ( SY661
               != ( set_meet @ SV297 ) )
              | ~ ( ~ ! [SY662: $i] :
                        ( ~ ( ~ ( in @ ( sK36_D @ SY662 @ SY661 @ SV297 ) @ SV297 )
                            | ~ ~ ( in @ SY662 @ ( sK36_D @ SY662 @ SY661 @ SV297 ) ) )
                        | ( in @ SY662 @ SY661 ) )
                  | ~ ! [SY663: $i] :
                        ( ~ ( in @ SY663 @ SY661 )
                        | ! [SY664: $i] :
                            ( ~ ( in @ SY664 @ SV297 )
                            | ( in @ SY663 @ SY664 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1326]) ).

thf(1403,plain,
    ! [SV298: $i] :
      ( ( ( ( SV298 != empty_set ) )
        = $true )
      | ( ( ! [SY665: $i] :
              ( ( SY665
               != ( set_meet @ SV298 ) )
              | ( SY665 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1327]) ).

thf(1404,plain,
    ! [SV299: $i] :
      ( ( ( ( SV299 != empty_set ) )
        = $true )
      | ( ( ! [SY666: $i] :
              ( ( SY666 != empty_set )
              | ( SY666
                = ( set_meet @ SV299 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1328]) ).

thf(1405,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( ~ ( ( ( sK35_C @ SV254 @ SV205 )
               != SV205 )
              | ~ ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) ) )
        = $false )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1329]) ).

thf(1406,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( ~ ( ( ( sK35_C @ SV254 @ SV205 )
                = SV205 )
              | ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) ) )
        = $false )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1329]) ).

thf(1407,plain,
    ! [SV255: $i,SV206: $i] :
      ( ( ( ~ ! [SY611: $i] :
                ( ( SY611 != SV206 )
                | ( in @ SY611 @ SV255 ) )
          | ~ ! [SY612: $i] :
                ( ~ ( in @ SY612 @ SV255 )
                | ( SY612 = SV206 ) ) )
        = $false )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1330]) ).

thf(1408,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
              | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
              | ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
          | ~ ~ ( ~ ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
                    | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
                | ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
                    | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) ) ) )
        = $false )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1331]) ).

thf(1409,plain,
    ! [SV257: $i,SV94: $i,SV276: $i] :
      ( ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY638: $i] :
                    ( ~ ( in @ SY638 @ SV94 )
                    | ( in @ SY638 @ SV257 )
                    | ( in @ SY638 @ SV276 ) )
              | ~ ~ ( ~ ! [SY639: $i] :
                          ( ~ ( in @ SY639 @ SV276 )
                          | ( in @ SY639 @ SV94 ) )
                    | ~ ! [SY640: $i] :
                          ( ~ ( in @ SY640 @ SV276 )
                          | ~ ( in @ SY640 @ SV257 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1332]) ).

thf(1410,plain,
    ! [SV157: $i,SV95: $i,SV315: $i] :
      ( ( ( ~ ( element @ SV315 @ ( powerset @ SV95 ) )
          | ~ ( disjoint @ SV157 @ SV315 )
          | ( subset @ SV157 @ ( subset_complement @ SV95 @ SV315 ) ) )
        = $true )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1333]) ).

thf(1411,plain,
    ! [SV157: $i,SV95: $i,SV316: $i] :
      ( ( ( ~ ( element @ SV316 @ ( powerset @ SV95 ) )
          | ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SV316 ) )
          | ( disjoint @ SV157 @ SV316 ) )
        = $true )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1334]) ).

thf(1412,plain,
    ! [SV207: $i,SV258: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV207 ) )
        = $false )
      | ( ( disjoint @ SV207 @ SV258 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1335]) ).

thf(1413,plain,
    ! [SV207: $i,SV258: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV258 ) )
        = $false )
      | ( ( disjoint @ SV207 @ SV258 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1335]) ).

thf(1414,plain,
    ! [SV259: $i,SV208: $i,SV300: $i] :
      ( ( ( ~ ( in @ SV300 @ SV208 ) )
        = $true )
      | ( ( ~ ( in @ SV300 @ SV259 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV208 @ SV259 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1336]) ).

thf(1415,plain,
    ! [SV260: $i,SV209: $i] :
      ( ( ( subset @ SV209 @ SV260 )
        = $false )
      | ( ( SV209 = SV260 )
        = $true )
      | ( ( proper_subset @ SV209 @ SV260 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1337]) ).

thf(1416,plain,
    ! [SV317: $i,SV301: $i] :
      ( ( ~ ( proper_subset @ SV301 @ SV317 )
        | ( SV301 != SV317 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1338]) ).

thf(1417,plain,
    ! [SV318: $i,SV302: $i] :
      ( ( ~ ( proper_subset @ SV302 @ SV318 )
        | ( subset @ SV302 @ SV318 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1339]) ).

thf(1418,plain,
    ! [SV34: $i,SV163: $i,SV261: $i] :
      ( ( ( in @ SV261 @ SV163 )
        = $true )
      | ( ( in @ SV261 @ ( subset_complement @ SV34 @ SV163 ) )
        = $true )
      | ( ( element @ SV261 @ SV34 )
        = $false )
      | ( ( element @ SV163 @ ( powerset @ SV34 ) )
        = $false )
      | ( ( SV34 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1341]) ).

thf(1419,plain,
    ! [SV77: $i,SV152: $i] :
      ( ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV152 )
        = $false )
      | ( ( in @ ( sK12_C @ SV152 @ SV77 ) @ SV77 )
        = $false )
      | ( ( SV77 = SV152 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1344]) ).

thf(1420,plain,
    ! [SV78: $i,SV277: $i] :
      ( ( ( ~ ( ! [SY641: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ SY641 ) @ SV78 )
              | ~ ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ ( sK23_SY312 @ SV277 @ SV78 ) ) @ SV78 )
              | ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) ) )
        = $false )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1345]) ).

thf(1421,plain,
    ! [SV78: $i,SV278: $i] :
      ( ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY642: $i] :
                    ( ! [SY405: $i] :
                        ~ ( in @ ( ordered_pair @ SY642 @ SY405 ) @ SV78 )
                    | ( in @ SY642 @ SV278 ) )
              | ~ ! [SY644: $i] :
                    ( ~ ( in @ SY644 @ SV278 )
                    | ( in @ ( ordered_pair @ SY644 @ ( sK21_D @ SY644 @ SV278 @ SV78 ) ) @ SV78 ) ) ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1346]) ).

thf(1422,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                    | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                     != SV79 ) )
                | ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                    | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                     != SV216 ) ) ) )
        = $false )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1348]) ).

thf(1423,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
              | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                = SV79 )
              | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                = SV216 ) ) )
        = $false )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1348]) ).

thf(1424,plain,
    ! [SV217: $i,SV79: $i,SV263: $i] :
      ( ( ( ~ ! [SY619: $i] :
                ( ~ ( in @ SY619 @ SV263 )
                | ( SY619 = SV79 )
                | ( SY619 = SV217 ) )
          | ~ ~ ( ~ ! [SY620: $i] :
                      ( ( SY620 != SV79 )
                      | ( in @ SY620 @ SV263 ) )
                | ~ ! [SY621: $i] :
                      ( ( SY621 != SV217 )
                      | ( in @ SY621 @ SV263 ) ) ) )
        = $false )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1349]) ).

thf(1425,plain,
    ! [SV80: $i,SV303: $i] :
      ( ( ( ~ ( in @ SV303 @ ( sK9_B @ SV80 ) ) )
        = $true )
      | ( ( in @ ( powerset @ SV303 ) @ ( sK9_B @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1351]) ).

thf(1426,plain,
    ! [SV80: $i] :
      ( ( ~ ! [SY416: $i,SY417: $i] :
              ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
              | ~ ( subset @ SY417 @ SY416 )
              | ( in @ SY417 @ ( sK9_B @ SV80 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1352]) ).

thf(1427,plain,
    ! [SV80: $i] :
      ( ( ~ ( in @ SV80 @ ( sK9_B @ SV80 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1352]) ).

thf(1428,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                    | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) )
                | ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                    | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) ) )
        = $false )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1353]) ).

thf(1429,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
              | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 )
              | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) )
        = $false )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1353]) ).

thf(1430,plain,
    ! [SV222: $i,SV82: $i,SV265: $i] :
      ( ( ( ~ ! [SY622: $i] :
                ( ~ ( in @ SY622 @ SV265 )
                | ( in @ SY622 @ SV82 )
                | ( in @ SY622 @ SV222 ) )
          | ~ ~ ( ~ ! [SY623: $i] :
                      ( ~ ( in @ SY623 @ SV82 )
                      | ( in @ SY623 @ SV265 ) )
                | ~ ! [SY624: $i] :
                      ( ~ ( in @ SY624 @ SV222 )
                      | ( in @ SY624 @ SV265 ) ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1354]) ).

thf(1431,plain,
    ! [SV182: $i,SV223: $i] :
      ( ( ( subset @ SV223 @ SV182 )
        = $false )
      | ( ( subset @ SV182 @ SV223 )
        = $false )
      | ( ( SV182 = SV223 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1355]) ).

thf(1432,plain,
    ! [SV304: $i,SV280: $i] :
      ( ( ( ( SV280 != SV304 ) )
        = $true )
      | ( ( subset @ SV280 @ SV304 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1356]) ).

thf(1433,plain,
    ! [SV305: $i,SV281: $i] :
      ( ( ( ( SV281 != SV305 ) )
        = $true )
      | ( ( subset @ SV305 @ SV281 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1357]) ).

thf(1434,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
          | ~ ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) )
        = $true )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1358]) ).

thf(1435,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
          | ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) )
        = $true )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1359]) ).

thf(1436,plain,
    ! [SV184: $i,SV225: $i] :
      ( ( ( ~ ! [SY587: $i] :
                ( ~ ( in @ SY587 @ SV225 )
                | ( subset @ SY587 @ SV184 ) ) )
        = $false )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1360]) ).

thf(1437,plain,
    ! [SV225: $i,SV184: $i] :
      ( ( ( ~ ! [SY588: $i] :
                ( ~ ( subset @ SY588 @ SV184 )
                | ( in @ SY588 @ SV225 ) ) )
        = $false )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1360]) ).

thf(1438,plain,
    ! [SV282: $i,SV153: $i,SV266: $i,SV83: $i] :
      ( ( ( ~ ( in @ SV83 @ SV266 ) )
        = $true )
      | ( ( ~ ( in @ SV153 @ SV282 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV266 @ SV282 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1361]) ).

thf(1439,plain,
    ! [SV319: $i,SV153: $i,SV83: $i] :
      ( ( ! [SY672: $i] :
            ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV319 @ SY672 ) )
        | ( in @ SV83 @ SV319 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1362]) ).

thf(1440,plain,
    ! [SV320: $i,SV153: $i,SV83: $i] :
      ( ( ! [SY673: $i] :
            ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV320 @ SY673 ) )
            | ( in @ SV153 @ SY673 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1363]) ).

thf(1441,plain,
    ! [SV84: $i,SV306: $i] :
      ( ( ( ~ ( ~ ! [SY669: $i] :
                    ( ~ ( subset @ SY669 @ SV306 )
                    | ( in @ SY669 @ ( sK11_SY302 @ SV306 @ SV84 ) ) )
              | ~ ( in @ ( sK11_SY302 @ SV306 @ SV84 ) @ ( sK10_B @ SV84 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1365]) ).

thf(1442,plain,
    ! [SV84: $i] :
      ( ( ~ ! [SY435: $i,SY436: $i] :
              ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
              | ~ ( subset @ SY436 @ SY435 )
              | ( in @ SY436 @ ( sK10_B @ SV84 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1366]) ).

thf(1443,plain,
    ! [SV84: $i] :
      ( ( ~ ( in @ SV84 @ ( sK10_B @ SV84 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1366]) ).

thf(1444,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ! [SY589: $i] :
              ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SY589 )
              | ~ ( in @ SY589 @ SV185 ) )
          | ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1367]) ).

thf(1445,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ ( sK20_SY310 @ SV227 @ SV185 ) )
              | ~ ( in @ ( sK20_SY310 @ SV227 @ SV185 ) @ SV185 ) )
          | ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1368]) ).

thf(1446,plain,
    ! [SV228: $i,SV186: $i] :
      ( ( ( ~ ! [SY590: $i] :
                ( ! [SY547: $i] :
                    ( ~ ( in @ SY590 @ SY547 )
                    | ~ ( in @ SY547 @ SV186 ) )
                | ( in @ SY590 @ SV228 ) ) )
        = $false )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1369]) ).

thf(1447,plain,
    ! [SV186: $i,SV228: $i] :
      ( ( ( ~ ! [SY592: $i] :
                ( ~ ( in @ SY592 @ SV228 )
                | ~ ( ~ ( in @ SY592 @ ( sK18_D @ SY592 @ SV228 @ SV186 ) )
                    | ~ ( in @ ( sK18_D @ SY592 @ SV228 @ SV186 ) @ SV186 ) ) ) )
        = $false )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1369]) ).

thf(1448,plain,
    ! [SV307: $i,SV267: $i,SV154: $i,SV85: $i] :
      ( ( ( ( ordered_pair @ SV85 @ SV154 )
          = ( ordered_pair @ SV267 @ SV307 ) )
        = $false )
      | ( ( SV85 = SV267 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1370]) ).

thf(1449,plain,
    ! [SV283: $i,SV268: $i,SV154: $i,SV85: $i] :
      ( ( ( ( ordered_pair @ SV85 @ SV154 )
          = ( ordered_pair @ SV268 @ SV283 ) )
        = $false )
      | ( ( SV154 = SV283 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1371]) ).

thf(1450,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
              | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
              | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1374]) ).

thf(1451,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
                    | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
                | ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
                    | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1374]) ).

thf(1452,plain,
    ! [SV270: $i,SV236: $i,SV87: $i] :
      ( ( ( ~ ! [SY628: $i] :
                ( ~ ( in @ SY628 @ SV87 )
                | ~ ( in @ SY628 @ SV236 )
                | ( in @ SY628 @ SV270 ) )
          | ~ ~ ( ~ ! [SY629: $i] :
                      ( ~ ( in @ SY629 @ SV270 )
                      | ( in @ SY629 @ SV87 ) )
                | ~ ! [SY630: $i] :
                      ( ~ ( in @ SY630 @ SV270 )
                      | ( in @ SY630 @ SV236 ) ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1375]) ).

thf(1453,plain,
    ! [SV237: $i,SV271: $i,SV90: $i] :
      ( ( ( in @ SV90 @ SV271 )
        = $false )
      | ( ( ~ ( in @ SV237 @ SV271 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV90 @ SV237 ) @ SV271 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1376]) ).

thf(1454,plain,
    ! [SV321: $i,SV310: $i,SV90: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV90 @ SV310 ) @ SV321 )
        | ( in @ SV90 @ SV321 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1377]) ).

thf(1455,plain,
    ! [SV322: $i,SV311: $i,SV90: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV90 @ SV311 ) @ SV322 )
        | ( in @ SV311 @ SV322 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1378]) ).

thf(1456,plain,
    ! [SV195: $i,SV242: $i] :
      ( ( ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV195 )
        = $true )
      | ( ( subset @ SV195 @ SV242 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1380]) ).

thf(1457,plain,
    ! [SV195: $i,SV242: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV242 ) )
        = $true )
      | ( ( subset @ SV195 @ SV242 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1381]) ).

thf(1458,plain,
    ! [SV243: $i,SV196: $i,SV312: $i] :
      ( ( ( ~ ( in @ SV312 @ SV196 ) )
        = $true )
      | ( ( in @ SV312 @ SV243 )
        = $true )
      | ( ( subset @ SV196 @ SV243 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1382]) ).

thf(1459,plain,
    ! [SV272: $i,SV244: $i,SV91: $i] :
      ( ( ( ~ ( ! [SY631: $i,SY632: $i] :
                  ( ~ ( in @ SY631 @ SV91 )
                  | ~ ( in @ SY632 @ SV244 )
                  | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
                   != ( ordered_pair @ SY631 @ SY632 ) ) )
              | ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) ) )
        = $false )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1383]) ).

thf(1460,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
                        | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) )
                  | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
                   != ( ordered_pair @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) ) ) )
              | ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) ) )
        = $false )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1383]) ).

thf(1461,plain,
    ! [SV273: $i,SV245: $i,SV91: $i] :
      ( ( ( ~ ! [SY633: $i] :
                ( ! [SY607: $i,SY608: $i] :
                    ( ~ ( in @ SY607 @ SV91 )
                    | ~ ( in @ SY608 @ SV245 )
                    | ( SY633
                     != ( ordered_pair @ SY607 @ SY608 ) ) )
                | ( in @ SY633 @ SV273 ) )
          | ~ ! [SY636: $i] :
                ( ~ ( in @ SY636 @ SV273 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                          | ~ ( in @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
                    | ( SY636
                     != ( ordered_pair @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) ) ) ) ) )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1384]) ).

thf(1462,plain,
    ! [SV284: $i,SV247: $i,SV198: $i] :
      ( ( ( disjoint @ SV198 @ SV247 )
        = $false )
      | ( ( in @ SV284 @ ( set_intersection2 @ SV198 @ SV247 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1385]) ).

thf(1463,plain,
    ! [SV285: $i] :
      ( ( ( SV285 = empty_set )
        = $false )
      | ( ( ! [SY647: $i] : ( subset @ SV285 @ ( singleton @ SY647 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1387]) ).

thf(1464,plain,
    ! [SV313: $i,SV286: $i] :
      ( ( ( ( SV286
           != ( singleton @ SV313 ) ) )
        = $true )
      | ( ( subset @ SV286 @ ( singleton @ SV313 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1388]) ).

thf(1465,plain,
    ! [SV287: $i,SV323: $i] :
      ( ( ( ~ ( element @ SV323 @ SV287 )
          | ( in @ SV323 @ SV287 ) )
        = $true )
      | ( ( empty @ SV287 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1389]) ).

thf(1466,plain,
    ! [SV288: $i,SV324: $i] :
      ( ( ( ~ ( in @ SV324 @ SV288 )
          | ( element @ SV324 @ SV288 ) )
        = $true )
      | ( ( empty @ SV288 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1390]) ).

thf(1467,plain,
    ! [SV289: $i] :
      ( ( ( empty @ SV289 )
        = $false )
      | ( ( ! [SY651: $i] :
              ( ~ ( element @ SY651 @ SV289 )
              | ( empty @ SY651 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1391]) ).

thf(1468,plain,
    ! [SV290: $i] :
      ( ( ( empty @ SV290 )
        = $false )
      | ( ( ! [SY652: $i] :
              ( ~ ( empty @ SY652 )
              | ( element @ SY652 @ SV290 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1392]) ).

thf(1469,plain,
    ! [SV92: $i,SV291: $i] :
      ( ( ( ~ ( ! [SY653: $i] :
                  ~ ( in @ ( ordered_pair @ SY653 @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
              | ~ ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV291 @ SV92 ) @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
              | ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) ) )
        = $false )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1393]) ).

thf(1470,plain,
    ! [SV92: $i,SV292: $i] :
      ( ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY654: $i] :
                    ( ! [SY474: $i] :
                        ~ ( in @ ( ordered_pair @ SY474 @ SY654 ) @ SV92 )
                    | ( in @ SY654 @ SV292 ) )
              | ~ ! [SY656: $i] :
                    ( ~ ( in @ SY656 @ SV292 )
                    | ( in @ ( ordered_pair @ ( sK14_D @ SY656 @ SV292 @ SV92 ) @ SY656 ) @ SV92 ) ) ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1394]) ).

thf(1471,plain,
    ! [SV293: $i,SV156: $i,SV274: $i,SV93: $i] :
      ( ( ( ~ ( in @ SV93 @ SV274 ) )
        = $true )
      | ( ( ~ ( in @ SV156 @ SV293 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV274 @ SV293 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1395]) ).

thf(1472,plain,
    ! [SV325: $i,SV156: $i,SV93: $i] :
      ( ( ! [SY674: $i] :
            ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV325 @ SY674 ) )
        | ( in @ SV93 @ SV325 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1396]) ).

thf(1473,plain,
    ! [SV326: $i,SV156: $i,SV93: $i] :
      ( ( ! [SY675: $i] :
            ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV326 @ SY675 ) )
            | ( in @ SV156 @ SY675 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1397]) ).

thf(1474,plain,
    ! [SV294: $i] :
      ( ( ( SV294 = empty_set )
        = $false )
      | ( ( ! [SY657: $i] : ( subset @ SV294 @ ( singleton @ SY657 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1399]) ).

thf(1475,plain,
    ! [SV314: $i,SV295: $i] :
      ( ( ( ( SV295
           != ( singleton @ SV314 ) ) )
        = $true )
      | ( ( subset @ SV295 @ ( singleton @ SV314 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1400]) ).

thf(1476,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 )
                      | ~ ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) ) )
                  | ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
              | ~ ( ! [SY676: $i] :
                      ( ~ ( in @ SY676 @ SV296 )
                      | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SY676 ) )
                  | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) ) )
          | ( SV327
            = ( set_meet @ SV296 ) ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1401]) ).

thf(1477,plain,
    ! [SV297: $i,SV328: $i] :
      ( ( ( ( SV328
           != ( set_meet @ SV297 ) )
          | ~ ( ~ ! [SY677: $i] :
                    ( ~ ( ~ ( in @ ( sK36_D @ SY677 @ SV328 @ SV297 ) @ SV297 )
                        | ~ ~ ( in @ SY677 @ ( sK36_D @ SY677 @ SV328 @ SV297 ) ) )
                    | ( in @ SY677 @ SV328 ) )
              | ~ ! [SY678: $i] :
                    ( ~ ( in @ SY678 @ SV328 )
                    | ! [SY664: $i] :
                        ( ~ ( in @ SY664 @ SV297 )
                        | ( in @ SY678 @ SY664 ) ) ) ) )
        = $true )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1402]) ).

thf(1478,plain,
    ! [SV298: $i] :
      ( ( ( SV298 = empty_set )
        = $false )
      | ( ( ! [SY665: $i] :
              ( ( SY665
               != ( set_meet @ SV298 ) )
              | ( SY665 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1403]) ).

thf(1479,plain,
    ! [SV299: $i] :
      ( ( ( SV299 = empty_set )
        = $false )
      | ( ( ! [SY666: $i] :
              ( ( SY666 != empty_set )
              | ( SY666
                = ( set_meet @ SV299 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1404]) ).

thf(1480,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( ( ( sK35_C @ SV254 @ SV205 )
           != SV205 )
          | ~ ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) )
        = $true )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1405]) ).

thf(1481,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( ( ( sK35_C @ SV254 @ SV205 )
            = SV205 )
          | ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) )
        = $true )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1406]) ).

thf(1482,plain,
    ! [SV255: $i,SV206: $i] :
      ( ( ( ~ ! [SY611: $i] :
                ( ( SY611 != SV206 )
                | ( in @ SY611 @ SV255 ) ) )
        = $false )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1407]) ).

thf(1483,plain,
    ! [SV206: $i,SV255: $i] :
      ( ( ( ~ ! [SY612: $i] :
                ( ~ ( in @ SY612 @ SV255 )
                | ( SY612 = SV206 ) ) )
        = $false )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1407]) ).

thf(1484,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
              | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
              | ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) ) )
        = $false )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1408]) ).

thf(1485,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
                    | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
                | ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
                    | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) ) ) )
        = $false )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1408]) ).

thf(1486,plain,
    ! [SV276: $i,SV257: $i,SV94: $i] :
      ( ( ( ~ ! [SY638: $i] :
                ( ~ ( in @ SY638 @ SV94 )
                | ( in @ SY638 @ SV257 )
                | ( in @ SY638 @ SV276 ) )
          | ~ ~ ( ~ ! [SY639: $i] :
                      ( ~ ( in @ SY639 @ SV276 )
                      | ( in @ SY639 @ SV94 ) )
                | ~ ! [SY640: $i] :
                      ( ~ ( in @ SY640 @ SV276 )
                      | ~ ( in @ SY640 @ SV257 ) ) ) )
        = $false )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1409]) ).

thf(1487,plain,
    ! [SV157: $i,SV95: $i,SV315: $i] :
      ( ( ( ~ ( element @ SV315 @ ( powerset @ SV95 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV157 @ SV315 )
          | ( subset @ SV157 @ ( subset_complement @ SV95 @ SV315 ) ) )
        = $true )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1410]) ).

thf(1488,plain,
    ! [SV157: $i,SV95: $i,SV316: $i] :
      ( ( ( ~ ( element @ SV316 @ ( powerset @ SV95 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SV316 ) )
          | ( disjoint @ SV157 @ SV316 ) )
        = $true )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1411]) ).

thf(1489,plain,
    ! [SV207: $i,SV258: $i] :
      ( ( ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV207 )
        = $true )
      | ( ( disjoint @ SV207 @ SV258 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1412]) ).

thf(1490,plain,
    ! [SV207: $i,SV258: $i] :
      ( ( ( in @ ( sK40_C @ SV258 @ SV207 ) @ SV258 )
        = $true )
      | ( ( disjoint @ SV207 @ SV258 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1413]) ).

thf(1491,plain,
    ! [SV259: $i,SV208: $i,SV300: $i] :
      ( ( ( in @ SV300 @ SV208 )
        = $false )
      | ( ( ~ ( in @ SV300 @ SV259 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV208 @ SV259 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1414]) ).

thf(1492,plain,
    ! [SV317: $i,SV301: $i] :
      ( ( ( ~ ( proper_subset @ SV301 @ SV317 ) )
        = $true )
      | ( ( ( SV301 != SV317 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1416]) ).

thf(1493,plain,
    ! [SV318: $i,SV302: $i] :
      ( ( ( ~ ( proper_subset @ SV302 @ SV318 ) )
        = $true )
      | ( ( subset @ SV302 @ SV318 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1417]) ).

thf(1494,plain,
    ! [SV78: $i,SV277: $i] :
      ( ( ( ~ ( ! [SY641: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ SY641 ) @ SV78 )
              | ~ ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) ) )
        = $false )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1420]) ).

thf(1495,plain,
    ! [SV78: $i,SV277: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ ( sK23_SY312 @ SV277 @ SV78 ) ) @ SV78 )
              | ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) ) )
        = $false )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1420]) ).

thf(1496,plain,
    ! [SV278: $i,SV78: $i] :
      ( ( ( ~ ! [SY642: $i] :
                ( ! [SY405: $i] :
                    ~ ( in @ ( ordered_pair @ SY642 @ SY405 ) @ SV78 )
                | ( in @ SY642 @ SV278 ) )
          | ~ ! [SY644: $i] :
                ( ~ ( in @ SY644 @ SV278 )
                | ( in @ ( ordered_pair @ SY644 @ ( sK21_D @ SY644 @ SV278 @ SV78 ) ) @ SV78 ) ) )
        = $false )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1421]) ).

thf(1497,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                  | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                   != SV79 ) )
              | ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
                  | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
                   != SV216 ) ) ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1422]) ).

thf(1498,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
          | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
            = SV79 )
          | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
            = SV216 ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1423]) ).

thf(1499,plain,
    ! [SV217: $i,SV79: $i,SV263: $i] :
      ( ( ( ~ ! [SY619: $i] :
                ( ~ ( in @ SY619 @ SV263 )
                | ( SY619 = SV79 )
                | ( SY619 = SV217 ) ) )
        = $false )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1424]) ).

thf(1500,plain,
    ! [SV217: $i,SV263: $i,SV79: $i] :
      ( ( ( ~ ~ ( ~ ! [SY620: $i] :
                      ( ( SY620 != SV79 )
                      | ( in @ SY620 @ SV263 ) )
                | ~ ! [SY621: $i] :
                      ( ( SY621 != SV217 )
                      | ( in @ SY621 @ SV263 ) ) ) )
        = $false )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1424]) ).

thf(1501,plain,
    ! [SV80: $i,SV303: $i] :
      ( ( ( in @ SV303 @ ( sK9_B @ SV80 ) )
        = $false )
      | ( ( in @ ( powerset @ SV303 ) @ ( sK9_B @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1425]) ).

thf(1502,plain,
    ! [SV80: $i] :
      ( ( ! [SY416: $i,SY417: $i] :
            ( ~ ( in @ SY416 @ ( sK9_B @ SV80 ) )
            | ~ ( subset @ SY417 @ SY416 )
            | ( in @ SY417 @ ( sK9_B @ SV80 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1426]) ).

thf(1503,plain,
    ! [SV80: $i] :
      ( ( in @ SV80 @ ( sK9_B @ SV80 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1427]) ).

thf(1504,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                  | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) )
              | ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
                  | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1428]) ).

thf(1505,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
          | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 )
          | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1429]) ).

thf(1506,plain,
    ! [SV222: $i,SV82: $i,SV265: $i] :
      ( ( ( ~ ! [SY622: $i] :
                ( ~ ( in @ SY622 @ SV265 )
                | ( in @ SY622 @ SV82 )
                | ( in @ SY622 @ SV222 ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1430]) ).

thf(1507,plain,
    ! [SV222: $i,SV265: $i,SV82: $i] :
      ( ( ( ~ ~ ( ~ ! [SY623: $i] :
                      ( ~ ( in @ SY623 @ SV82 )
                      | ( in @ SY623 @ SV265 ) )
                | ~ ! [SY624: $i] :
                      ( ~ ( in @ SY624 @ SV222 )
                      | ( in @ SY624 @ SV265 ) ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1430]) ).

thf(1508,plain,
    ! [SV304: $i,SV280: $i] :
      ( ( ( SV280 = SV304 )
        = $false )
      | ( ( subset @ SV280 @ SV304 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1432]) ).

thf(1509,plain,
    ! [SV305: $i,SV281: $i] :
      ( ( ( SV281 = SV305 )
        = $false )
      | ( ( subset @ SV305 @ SV281 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1433]) ).

thf(1510,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) )
        = $true )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1434]) ).

thf(1511,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
        = $true )
      | ( ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 )
        = $true )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1435]) ).

thf(1512,plain,
    ! [SV184: $i,SV225: $i] :
      ( ( ( ! [SY587: $i] :
              ( ~ ( in @ SY587 @ SV225 )
              | ( subset @ SY587 @ SV184 ) ) )
        = $true )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1436]) ).

thf(1513,plain,
    ! [SV225: $i,SV184: $i] :
      ( ( ( ! [SY588: $i] :
              ( ~ ( subset @ SY588 @ SV184 )
              | ( in @ SY588 @ SV225 ) ) )
        = $true )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1437]) ).

thf(1514,plain,
    ! [SV282: $i,SV153: $i,SV266: $i,SV83: $i] :
      ( ( ( in @ SV83 @ SV266 )
        = $false )
      | ( ( ~ ( in @ SV153 @ SV282 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV266 @ SV282 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1438]) ).

thf(1515,plain,
    ! [SV319: $i,SV153: $i,SV83: $i] :
      ( ( ( ! [SY672: $i] :
              ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV319 @ SY672 ) ) )
        = $true )
      | ( ( in @ SV83 @ SV319 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1439]) ).

thf(1516,plain,
    ! [SV329: $i,SV320: $i,SV153: $i,SV83: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV320 @ SV329 ) )
        | ( in @ SV153 @ SV329 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1440]) ).

thf(1517,plain,
    ! [SV84: $i,SV306: $i] :
      ( ( ( ~ ! [SY669: $i] :
                ( ~ ( subset @ SY669 @ SV306 )
                | ( in @ SY669 @ ( sK11_SY302 @ SV306 @ SV84 ) ) )
          | ~ ( in @ ( sK11_SY302 @ SV306 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
        = $false )
      | ( ( ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1441]) ).

thf(1518,plain,
    ! [SV84: $i] :
      ( ( ! [SY435: $i,SY436: $i] :
            ( ~ ( in @ SY435 @ ( sK10_B @ SV84 ) )
            | ~ ( subset @ SY436 @ SY435 )
            | ( in @ SY436 @ ( sK10_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1442]) ).

thf(1519,plain,
    ! [SV84: $i] :
      ( ( in @ SV84 @ ( sK10_B @ SV84 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1443]) ).

thf(1520,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ! [SY589: $i] :
              ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SY589 )
              | ~ ( in @ SY589 @ SV185 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1444]) ).

thf(1521,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ ( sK20_SY310 @ SV227 @ SV185 ) )
              | ~ ( in @ ( sK20_SY310 @ SV227 @ SV185 ) @ SV185 ) ) )
        = $true )
      | ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1445]) ).

thf(1522,plain,
    ! [SV228: $i,SV186: $i] :
      ( ( ( ! [SY590: $i] :
              ( ! [SY547: $i] :
                  ( ~ ( in @ SY590 @ SY547 )
                  | ~ ( in @ SY547 @ SV186 ) )
              | ( in @ SY590 @ SV228 ) ) )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1446]) ).

thf(1523,plain,
    ! [SV186: $i,SV228: $i] :
      ( ( ( ! [SY592: $i] :
              ( ~ ( in @ SY592 @ SV228 )
              | ~ ( ~ ( in @ SY592 @ ( sK18_D @ SY592 @ SV228 @ SV186 ) )
                  | ~ ( in @ ( sK18_D @ SY592 @ SV228 @ SV186 ) @ SV186 ) ) ) )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1447]) ).

thf(1524,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
          | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
          | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1450]) ).

thf(1525,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
                  | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
              | ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
                  | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) ) ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1451]) ).

thf(1526,plain,
    ! [SV270: $i,SV236: $i,SV87: $i] :
      ( ( ( ~ ! [SY628: $i] :
                ( ~ ( in @ SY628 @ SV87 )
                | ~ ( in @ SY628 @ SV236 )
                | ( in @ SY628 @ SV270 ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1452]) ).

thf(1527,plain,
    ! [SV236: $i,SV87: $i,SV270: $i] :
      ( ( ( ~ ~ ( ~ ! [SY629: $i] :
                      ( ~ ( in @ SY629 @ SV270 )
                      | ( in @ SY629 @ SV87 ) )
                | ~ ! [SY630: $i] :
                      ( ~ ( in @ SY630 @ SV270 )
                      | ( in @ SY630 @ SV236 ) ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1452]) ).

thf(1528,plain,
    ! [SV90: $i,SV271: $i,SV237: $i] :
      ( ( ( in @ SV237 @ SV271 )
        = $false )
      | ( ( in @ SV90 @ SV271 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV90 @ SV237 ) @ SV271 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1453]) ).

thf(1529,plain,
    ! [SV321: $i,SV310: $i,SV90: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV90 @ SV310 ) @ SV321 ) )
        = $true )
      | ( ( in @ SV90 @ SV321 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1454]) ).

thf(1530,plain,
    ! [SV322: $i,SV311: $i,SV90: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV90 @ SV311 ) @ SV322 ) )
        = $true )
      | ( ( in @ SV311 @ SV322 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1455]) ).

thf(1531,plain,
    ! [SV195: $i,SV242: $i] :
      ( ( ( in @ ( sK25_C @ SV242 @ SV195 ) @ SV242 )
        = $false )
      | ( ( subset @ SV195 @ SV242 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1457]) ).

thf(1532,plain,
    ! [SV243: $i,SV196: $i,SV312: $i] :
      ( ( ( in @ SV312 @ SV196 )
        = $false )
      | ( ( in @ SV312 @ SV243 )
        = $true )
      | ( ( subset @ SV196 @ SV243 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1458]) ).

thf(1533,plain,
    ! [SV272: $i,SV244: $i,SV91: $i] :
      ( ( ( ! [SY631: $i,SY632: $i] :
              ( ~ ( in @ SY631 @ SV91 )
              | ~ ( in @ SY632 @ SV244 )
              | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
               != ( ordered_pair @ SY631 @ SY632 ) ) )
          | ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1459]) ).

thf(1534,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
                    | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) )
              | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
               != ( ordered_pair @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) ) ) )
          | ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1460]) ).

thf(1535,plain,
    ! [SV273: $i,SV245: $i,SV91: $i] :
      ( ( ( ~ ! [SY633: $i] :
                ( ! [SY607: $i,SY608: $i] :
                    ( ~ ( in @ SY607 @ SV91 )
                    | ~ ( in @ SY608 @ SV245 )
                    | ( SY633
                     != ( ordered_pair @ SY607 @ SY608 ) ) )
                | ( in @ SY633 @ SV273 ) ) )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1461]) ).

thf(1536,plain,
    ! [SV91: $i,SV245: $i,SV273: $i] :
      ( ( ( ~ ! [SY636: $i] :
                ( ~ ( in @ SY636 @ SV273 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                          | ~ ( in @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
                    | ( SY636
                     != ( ordered_pair @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) ) ) ) ) )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1461]) ).

thf(1537,plain,
    ! [SV330: $i,SV285: $i] :
      ( ( ( subset @ SV285 @ ( singleton @ SV330 ) )
        = $true )
      | ( ( SV285 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1463]) ).

thf(1538,plain,
    ! [SV313: $i,SV286: $i] :
      ( ( ( SV286
          = ( singleton @ SV313 ) )
        = $false )
      | ( ( subset @ SV286 @ ( singleton @ SV313 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1464]) ).

thf(1539,plain,
    ! [SV287: $i,SV323: $i] :
      ( ( ( ~ ( element @ SV323 @ SV287 ) )
        = $true )
      | ( ( in @ SV323 @ SV287 )
        = $true )
      | ( ( empty @ SV287 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1465]) ).

thf(1540,plain,
    ! [SV288: $i,SV324: $i] :
      ( ( ( ~ ( in @ SV324 @ SV288 ) )
        = $true )
      | ( ( element @ SV324 @ SV288 )
        = $true )
      | ( ( empty @ SV288 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1466]) ).

thf(1541,plain,
    ! [SV289: $i,SV331: $i] :
      ( ( ( ~ ( element @ SV331 @ SV289 )
          | ( empty @ SV331 ) )
        = $true )
      | ( ( empty @ SV289 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1467]) ).

thf(1542,plain,
    ! [SV290: $i,SV332: $i] :
      ( ( ( ~ ( empty @ SV332 )
          | ( element @ SV332 @ SV290 ) )
        = $true )
      | ( ( empty @ SV290 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1468]) ).

thf(1543,plain,
    ! [SV92: $i,SV291: $i] :
      ( ( ( ~ ( ! [SY653: $i] :
                  ~ ( in @ ( ordered_pair @ SY653 @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
              | ~ ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) ) )
        = $false )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1469]) ).

thf(1544,plain,
    ! [SV92: $i,SV291: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV291 @ SV92 ) @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
              | ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) ) )
        = $false )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1469]) ).

thf(1545,plain,
    ! [SV292: $i,SV92: $i] :
      ( ( ( ~ ! [SY654: $i] :
                ( ! [SY474: $i] :
                    ~ ( in @ ( ordered_pair @ SY474 @ SY654 ) @ SV92 )
                | ( in @ SY654 @ SV292 ) )
          | ~ ! [SY656: $i] :
                ( ~ ( in @ SY656 @ SV292 )
                | ( in @ ( ordered_pair @ ( sK14_D @ SY656 @ SV292 @ SV92 ) @ SY656 ) @ SV92 ) ) )
        = $false )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1470]) ).

thf(1546,plain,
    ! [SV293: $i,SV156: $i,SV274: $i,SV93: $i] :
      ( ( ( in @ SV93 @ SV274 )
        = $false )
      | ( ( ~ ( in @ SV156 @ SV293 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV274 @ SV293 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1471]) ).

thf(1547,plain,
    ! [SV325: $i,SV156: $i,SV93: $i] :
      ( ( ( ! [SY674: $i] :
              ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV325 @ SY674 ) ) )
        = $true )
      | ( ( in @ SV93 @ SV325 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1472]) ).

thf(1548,plain,
    ! [SV333: $i,SV326: $i,SV156: $i,SV93: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV326 @ SV333 ) )
        | ( in @ SV156 @ SV333 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1473]) ).

thf(1549,plain,
    ! [SV334: $i,SV294: $i] :
      ( ( ( subset @ SV294 @ ( singleton @ SV334 ) )
        = $true )
      | ( ( SV294 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1474]) ).

thf(1550,plain,
    ! [SV314: $i,SV295: $i] :
      ( ( ( SV295
          = ( singleton @ SV314 ) )
        = $false )
      | ( ( subset @ SV295 @ ( singleton @ SV314 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1475]) ).

thf(1551,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 )
                      | ~ ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) ) )
                  | ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
              | ~ ( ! [SY676: $i] :
                      ( ~ ( in @ SY676 @ SV296 )
                      | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SY676 ) )
                  | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) ) ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1476]) ).

thf(1552,plain,
    ! [SV297: $i,SV328: $i] :
      ( ( ( ( SV328
           != ( set_meet @ SV297 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY677: $i] :
                    ( ~ ( ~ ( in @ ( sK36_D @ SY677 @ SV328 @ SV297 ) @ SV297 )
                        | ~ ~ ( in @ SY677 @ ( sK36_D @ SY677 @ SV328 @ SV297 ) ) )
                    | ( in @ SY677 @ SV328 ) )
              | ~ ! [SY678: $i] :
                    ( ~ ( in @ SY678 @ SV328 )
                    | ! [SY664: $i] :
                        ( ~ ( in @ SY664 @ SV297 )
                        | ( in @ SY678 @ SY664 ) ) ) ) )
        = $true )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1477]) ).

thf(1553,plain,
    ! [SV298: $i,SV335: $i] :
      ( ( ( ( SV335
           != ( set_meet @ SV298 ) )
          | ( SV335 = empty_set ) )
        = $true )
      | ( ( SV298 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1478]) ).

thf(1554,plain,
    ! [SV299: $i,SV336: $i] :
      ( ( ( ( SV336 != empty_set )
          | ( SV336
            = ( set_meet @ SV299 ) ) )
        = $true )
      | ( ( SV299 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1479]) ).

thf(1555,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( ( ( sK35_C @ SV254 @ SV205 )
           != SV205 ) )
        = $true )
      | ( ( ~ ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) )
        = $true )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1480]) ).

thf(1556,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( ( sK35_C @ SV254 @ SV205 )
          = SV205 )
        = $true )
      | ( ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 )
        = $true )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1481]) ).

thf(1557,plain,
    ! [SV255: $i,SV206: $i] :
      ( ( ( ! [SY611: $i] :
              ( ( SY611 != SV206 )
              | ( in @ SY611 @ SV255 ) ) )
        = $true )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1482]) ).

thf(1558,plain,
    ! [SV206: $i,SV255: $i] :
      ( ( ( ! [SY612: $i] :
              ( ~ ( in @ SY612 @ SV255 )
              | ( SY612 = SV206 ) ) )
        = $true )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1483]) ).

thf(1559,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
          | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
          | ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1484]) ).

thf(1560,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
                  | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
              | ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
                  | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) ) ) )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1485]) ).

thf(1561,plain,
    ! [SV276: $i,SV257: $i,SV94: $i] :
      ( ( ( ~ ! [SY638: $i] :
                ( ~ ( in @ SY638 @ SV94 )
                | ( in @ SY638 @ SV257 )
                | ( in @ SY638 @ SV276 ) ) )
        = $false )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1486]) ).

thf(1562,plain,
    ! [SV257: $i,SV94: $i,SV276: $i] :
      ( ( ( ~ ~ ( ~ ! [SY639: $i] :
                      ( ~ ( in @ SY639 @ SV276 )
                      | ( in @ SY639 @ SV94 ) )
                | ~ ! [SY640: $i] :
                      ( ~ ( in @ SY640 @ SV276 )
                      | ~ ( in @ SY640 @ SV257 ) ) ) )
        = $false )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1486]) ).

thf(1563,plain,
    ! [SV157: $i,SV95: $i,SV315: $i] :
      ( ( ( element @ SV315 @ ( powerset @ SV95 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV157 @ SV315 )
          | ( subset @ SV157 @ ( subset_complement @ SV95 @ SV315 ) ) )
        = $true )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1487]) ).

thf(1564,plain,
    ! [SV157: $i,SV95: $i,SV316: $i] :
      ( ( ( element @ SV316 @ ( powerset @ SV95 ) )
        = $false )
      | ( ( ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SV316 ) )
          | ( disjoint @ SV157 @ SV316 ) )
        = $true )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1488]) ).

thf(1565,plain,
    ! [SV208: $i,SV259: $i,SV300: $i] :
      ( ( ( in @ SV300 @ SV259 )
        = $false )
      | ( ( in @ SV300 @ SV208 )
        = $false )
      | ( ( ~ ( disjoint @ SV208 @ SV259 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1491]) ).

thf(1566,plain,
    ! [SV317: $i,SV301: $i] :
      ( ( ( proper_subset @ SV301 @ SV317 )
        = $false )
      | ( ( ( SV301 != SV317 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1492]) ).

thf(1567,plain,
    ! [SV318: $i,SV302: $i] :
      ( ( ( proper_subset @ SV302 @ SV318 )
        = $false )
      | ( ( subset @ SV302 @ SV318 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1493]) ).

thf(1568,plain,
    ! [SV78: $i,SV277: $i] :
      ( ( ( ! [SY641: $i] :
              ~ ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ SY641 ) @ SV78 )
          | ~ ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) )
        = $true )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1494]) ).

thf(1569,plain,
    ! [SV78: $i,SV277: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ ( sK23_SY312 @ SV277 @ SV78 ) ) @ SV78 )
          | ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) )
        = $true )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1495]) ).

thf(1570,plain,
    ! [SV278: $i,SV78: $i] :
      ( ( ( ~ ! [SY642: $i] :
                ( ! [SY405: $i] :
                    ~ ( in @ ( ordered_pair @ SY642 @ SY405 ) @ SV78 )
                | ( in @ SY642 @ SV278 ) ) )
        = $false )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1496]) ).

thf(1571,plain,
    ! [SV78: $i,SV278: $i] :
      ( ( ( ~ ! [SY644: $i] :
                ( ~ ( in @ SY644 @ SV278 )
                | ( in @ ( ordered_pair @ SY644 @ ( sK21_D @ SY644 @ SV278 @ SV78 ) ) @ SV78 ) ) )
        = $false )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1496]) ).

thf(1572,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
              | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
               != SV79 ) )
          | ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
              | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
               != SV216 ) ) )
        = $false )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1497]) ).

thf(1573,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
        = $true )
      | ( ( ( ( sK32_D @ SV262 @ SV216 @ SV79 )
            = SV79 )
          | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
            = SV216 ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1498]) ).

thf(1574,plain,
    ! [SV217: $i,SV79: $i,SV263: $i] :
      ( ( ( ! [SY619: $i] :
              ( ~ ( in @ SY619 @ SV263 )
              | ( SY619 = SV79 )
              | ( SY619 = SV217 ) ) )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1499]) ).

thf(1575,plain,
    ! [SV217: $i,SV263: $i,SV79: $i] :
      ( ( ( ~ ( ~ ! [SY620: $i] :
                    ( ( SY620 != SV79 )
                    | ( in @ SY620 @ SV263 ) )
              | ~ ! [SY621: $i] :
                    ( ( SY621 != SV217 )
                    | ( in @ SY621 @ SV263 ) ) ) )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1500]) ).

thf(1576,plain,
    ! [SV80: $i,SV337: $i] :
      ( ( ! [SY680: $i] :
            ( ~ ( in @ SV337 @ ( sK9_B @ SV80 ) )
            | ~ ( subset @ SY680 @ SV337 )
            | ( in @ SY680 @ ( sK9_B @ SV80 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1502]) ).

thf(1577,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
              | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) )
          | ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
              | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) )
        = $false )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1504]) ).

thf(1578,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
        = $true )
      | ( ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 )
          | ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1505]) ).

thf(1579,plain,
    ! [SV222: $i,SV82: $i,SV265: $i] :
      ( ( ( ! [SY622: $i] :
              ( ~ ( in @ SY622 @ SV265 )
              | ( in @ SY622 @ SV82 )
              | ( in @ SY622 @ SV222 ) ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1506]) ).

thf(1580,plain,
    ! [SV222: $i,SV265: $i,SV82: $i] :
      ( ( ( ~ ( ~ ! [SY623: $i] :
                    ( ~ ( in @ SY623 @ SV82 )
                    | ( in @ SY623 @ SV265 ) )
              | ~ ! [SY624: $i] :
                    ( ~ ( in @ SY624 @ SV222 )
                    | ( in @ SY624 @ SV265 ) ) ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1507]) ).

thf(1581,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
        = $false )
      | ( ( ~ ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 ) )
        = $true )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1510]) ).

thf(1582,plain,
    ! [SV184: $i,SV225: $i,SV338: $i] :
      ( ( ( ~ ( in @ SV338 @ SV225 )
          | ( subset @ SV338 @ SV184 ) )
        = $true )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1512]) ).

thf(1583,plain,
    ! [SV225: $i,SV184: $i,SV339: $i] :
      ( ( ( ~ ( subset @ SV339 @ SV184 )
          | ( in @ SV339 @ SV225 ) )
        = $true )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1513]) ).

thf(1584,plain,
    ! [SV266: $i,SV83: $i,SV282: $i,SV153: $i] :
      ( ( ( in @ SV153 @ SV282 )
        = $false )
      | ( ( in @ SV83 @ SV266 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV266 @ SV282 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1514]) ).

thf(1585,plain,
    ! [SV340: $i,SV319: $i,SV153: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV319 @ SV340 ) ) )
        = $true )
      | ( ( in @ SV83 @ SV319 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1515]) ).

thf(1586,plain,
    ! [SV329: $i,SV320: $i,SV153: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV320 @ SV329 ) ) )
        = $true )
      | ( ( in @ SV153 @ SV329 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1516]) ).

thf(1587,plain,
    ! [SV84: $i,SV306: $i] :
      ( ( ( ~ ! [SY669: $i] :
                ( ~ ( subset @ SY669 @ SV306 )
                | ( in @ SY669 @ ( sK11_SY302 @ SV306 @ SV84 ) ) ) )
        = $false )
      | ( ( ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1517]) ).

thf(1588,plain,
    ! [SV84: $i,SV306: $i] :
      ( ( ( ~ ( in @ ( sK11_SY302 @ SV306 @ SV84 ) @ ( sK10_B @ SV84 ) ) )
        = $false )
      | ( ( ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1517]) ).

thf(1589,plain,
    ! [SV84: $i,SV341: $i] :
      ( ( ! [SY681: $i] :
            ( ~ ( in @ SV341 @ ( sK10_B @ SV84 ) )
            | ~ ( subset @ SY681 @ SV341 )
            | ( in @ SY681 @ ( sK10_B @ SV84 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1518]) ).

thf(1590,plain,
    ! [SV342: $i,SV185: $i,SV227: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV342 )
          | ~ ( in @ SV342 @ SV185 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1520]) ).

thf(1591,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ ( sK20_SY310 @ SV227 @ SV185 ) )
          | ~ ( in @ ( sK20_SY310 @ SV227 @ SV185 ) @ SV185 ) )
        = $false )
      | ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1521]) ).

thf(1592,plain,
    ! [SV228: $i,SV186: $i,SV343: $i] :
      ( ( ( ! [SY682: $i] :
              ( ~ ( in @ SV343 @ SY682 )
              | ~ ( in @ SY682 @ SV186 ) )
          | ( in @ SV343 @ SV228 ) )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1522]) ).

thf(1593,plain,
    ! [SV186: $i,SV228: $i,SV344: $i] :
      ( ( ( ~ ( in @ SV344 @ SV228 )
          | ~ ( ~ ( in @ SV344 @ ( sK18_D @ SV344 @ SV228 @ SV186 ) )
              | ~ ( in @ ( sK18_D @ SV344 @ SV228 @ SV186 ) @ SV186 ) ) )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1523]) ).

thf(1594,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
          | ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1524]) ).

thf(1595,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
              | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
          | ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
              | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1525]) ).

thf(1596,plain,
    ! [SV270: $i,SV236: $i,SV87: $i] :
      ( ( ( ! [SY628: $i] :
              ( ~ ( in @ SY628 @ SV87 )
              | ~ ( in @ SY628 @ SV236 )
              | ( in @ SY628 @ SV270 ) ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1526]) ).

thf(1597,plain,
    ! [SV236: $i,SV87: $i,SV270: $i] :
      ( ( ( ~ ( ~ ! [SY629: $i] :
                    ( ~ ( in @ SY629 @ SV270 )
                    | ( in @ SY629 @ SV87 ) )
              | ~ ! [SY630: $i] :
                    ( ~ ( in @ SY630 @ SV270 )
                    | ( in @ SY630 @ SV236 ) ) ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1527]) ).

thf(1598,plain,
    ! [SV321: $i,SV310: $i,SV90: $i] :
      ( ( ( subset @ ( unordered_pair @ SV90 @ SV310 ) @ SV321 )
        = $false )
      | ( ( in @ SV90 @ SV321 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1529]) ).

thf(1599,plain,
    ! [SV322: $i,SV311: $i,SV90: $i] :
      ( ( ( subset @ ( unordered_pair @ SV90 @ SV311 ) @ SV322 )
        = $false )
      | ( ( in @ SV311 @ SV322 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1530]) ).

thf(1600,plain,
    ! [SV272: $i,SV244: $i,SV91: $i] :
      ( ( ( ! [SY631: $i,SY632: $i] :
              ( ~ ( in @ SY631 @ SV91 )
              | ~ ( in @ SY632 @ SV244 )
              | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
               != ( ordered_pair @ SY631 @ SY632 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1533]) ).

thf(1601,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
                    | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) )
              | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
               != ( ordered_pair @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1534]) ).

thf(1602,plain,
    ! [SV273: $i,SV245: $i,SV91: $i] :
      ( ( ( ! [SY633: $i] :
              ( ! [SY607: $i,SY608: $i] :
                  ( ~ ( in @ SY607 @ SV91 )
                  | ~ ( in @ SY608 @ SV245 )
                  | ( SY633
                   != ( ordered_pair @ SY607 @ SY608 ) ) )
              | ( in @ SY633 @ SV273 ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1535]) ).

thf(1603,plain,
    ! [SV91: $i,SV245: $i,SV273: $i] :
      ( ( ( ! [SY636: $i] :
              ( ~ ( in @ SY636 @ SV273 )
              | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                        | ~ ( in @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
                  | ( SY636
                   != ( ordered_pair @ ( sK26_E @ SY636 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SY636 @ SV273 @ SV245 @ SV91 ) ) ) ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1536]) ).

thf(1604,plain,
    ! [SV287: $i,SV323: $i] :
      ( ( ( element @ SV323 @ SV287 )
        = $false )
      | ( ( in @ SV323 @ SV287 )
        = $true )
      | ( ( empty @ SV287 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1539]) ).

thf(1605,plain,
    ! [SV288: $i,SV324: $i] :
      ( ( ( in @ SV324 @ SV288 )
        = $false )
      | ( ( element @ SV324 @ SV288 )
        = $true )
      | ( ( empty @ SV288 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1540]) ).

thf(1606,plain,
    ! [SV289: $i,SV331: $i] :
      ( ( ( ~ ( element @ SV331 @ SV289 ) )
        = $true )
      | ( ( empty @ SV331 )
        = $true )
      | ( ( empty @ SV289 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1541]) ).

thf(1607,plain,
    ! [SV290: $i,SV332: $i] :
      ( ( ( ~ ( empty @ SV332 ) )
        = $true )
      | ( ( element @ SV332 @ SV290 )
        = $true )
      | ( ( empty @ SV290 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1542]) ).

thf(1608,plain,
    ! [SV92: $i,SV291: $i] :
      ( ( ( ! [SY653: $i] :
              ~ ( in @ ( ordered_pair @ SY653 @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
          | ~ ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1543]) ).

thf(1609,plain,
    ! [SV92: $i,SV291: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV291 @ SV92 ) @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
          | ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1544]) ).

thf(1610,plain,
    ! [SV292: $i,SV92: $i] :
      ( ( ( ~ ! [SY654: $i] :
                ( ! [SY474: $i] :
                    ~ ( in @ ( ordered_pair @ SY474 @ SY654 ) @ SV92 )
                | ( in @ SY654 @ SV292 ) ) )
        = $false )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1545]) ).

thf(1611,plain,
    ! [SV92: $i,SV292: $i] :
      ( ( ( ~ ! [SY656: $i] :
                ( ~ ( in @ SY656 @ SV292 )
                | ( in @ ( ordered_pair @ ( sK14_D @ SY656 @ SV292 @ SV92 ) @ SY656 ) @ SV92 ) ) )
        = $false )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1545]) ).

thf(1612,plain,
    ! [SV274: $i,SV93: $i,SV293: $i,SV156: $i] :
      ( ( ( in @ SV156 @ SV293 )
        = $false )
      | ( ( in @ SV93 @ SV274 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV274 @ SV293 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1546]) ).

thf(1613,plain,
    ! [SV345: $i,SV325: $i,SV156: $i,SV93: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV325 @ SV345 ) ) )
        = $true )
      | ( ( in @ SV93 @ SV325 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1547]) ).

thf(1614,plain,
    ! [SV333: $i,SV326: $i,SV156: $i,SV93: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV326 @ SV333 ) ) )
        = $true )
      | ( ( in @ SV156 @ SV333 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1548]) ).

thf(1615,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 )
                  | ~ ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) ) )
              | ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
          | ~ ( ! [SY676: $i] :
                  ( ~ ( in @ SY676 @ SV296 )
                  | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SY676 ) )
              | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) ) )
        = $false )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1551]) ).

thf(1616,plain,
    ! [SV297: $i,SV328: $i] :
      ( ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY677: $i] :
                    ( ~ ( ~ ( in @ ( sK36_D @ SY677 @ SV328 @ SV297 ) @ SV297 )
                        | ~ ~ ( in @ SY677 @ ( sK36_D @ SY677 @ SV328 @ SV297 ) ) )
                    | ( in @ SY677 @ SV328 ) )
              | ~ ! [SY678: $i] :
                    ( ~ ( in @ SY678 @ SV328 )
                    | ! [SY664: $i] :
                        ( ~ ( in @ SY664 @ SV297 )
                        | ( in @ SY678 @ SY664 ) ) ) ) )
        = $true )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1552]) ).

thf(1617,plain,
    ! [SV298: $i,SV335: $i] :
      ( ( ( ( SV335
           != ( set_meet @ SV298 ) ) )
        = $true )
      | ( ( SV335 = empty_set )
        = $true )
      | ( ( SV298 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1553]) ).

thf(1618,plain,
    ! [SV299: $i,SV336: $i] :
      ( ( ( ( SV336 != empty_set ) )
        = $true )
      | ( ( SV336
          = ( set_meet @ SV299 ) )
        = $true )
      | ( ( SV299 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1554]) ).

thf(1619,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( ( sK35_C @ SV254 @ SV205 )
          = SV205 )
        = $false )
      | ( ( ~ ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 ) )
        = $true )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1555]) ).

thf(1620,plain,
    ! [SV255: $i,SV206: $i,SV346: $i] :
      ( ( ( ( SV346 != SV206 )
          | ( in @ SV346 @ SV255 ) )
        = $true )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1557]) ).

thf(1621,plain,
    ! [SV206: $i,SV255: $i,SV347: $i] :
      ( ( ( ~ ( in @ SV347 @ SV255 )
          | ( SV347 = SV206 ) )
        = $true )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1558]) ).

thf(1622,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
          | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1559]) ).

thf(1623,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
              | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
          | ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
              | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) ) )
        = $false )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1560]) ).

thf(1624,plain,
    ! [SV276: $i,SV257: $i,SV94: $i] :
      ( ( ( ! [SY638: $i] :
              ( ~ ( in @ SY638 @ SV94 )
              | ( in @ SY638 @ SV257 )
              | ( in @ SY638 @ SV276 ) ) )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1561]) ).

thf(1625,plain,
    ! [SV257: $i,SV94: $i,SV276: $i] :
      ( ( ( ~ ( ~ ! [SY639: $i] :
                    ( ~ ( in @ SY639 @ SV276 )
                    | ( in @ SY639 @ SV94 ) )
              | ~ ! [SY640: $i] :
                    ( ~ ( in @ SY640 @ SV276 )
                    | ~ ( in @ SY640 @ SV257 ) ) ) )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1562]) ).

thf(1626,plain,
    ! [SV95: $i,SV315: $i,SV157: $i] :
      ( ( ( ~ ( disjoint @ SV157 @ SV315 ) )
        = $true )
      | ( ( subset @ SV157 @ ( subset_complement @ SV95 @ SV315 ) )
        = $true )
      | ( ( element @ SV315 @ ( powerset @ SV95 ) )
        = $false )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1563]) ).

thf(1627,plain,
    ! [SV316: $i,SV95: $i,SV157: $i] :
      ( ( ( ~ ( subset @ SV157 @ ( subset_complement @ SV95 @ SV316 ) ) )
        = $true )
      | ( ( disjoint @ SV157 @ SV316 )
        = $true )
      | ( ( element @ SV316 @ ( powerset @ SV95 ) )
        = $false )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1564]) ).

thf(1628,plain,
    ! [SV300: $i,SV259: $i,SV208: $i] :
      ( ( ( disjoint @ SV208 @ SV259 )
        = $false )
      | ( ( in @ SV300 @ SV208 )
        = $false )
      | ( ( in @ SV300 @ SV259 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1565]) ).

thf(1629,plain,
    ! [SV317: $i,SV301: $i] :
      ( ( ( SV301 = SV317 )
        = $false )
      | ( ( proper_subset @ SV301 @ SV317 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1566]) ).

thf(1630,plain,
    ! [SV78: $i,SV277: $i] :
      ( ( ( ! [SY641: $i] :
              ~ ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ SY641 ) @ SV78 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) )
        = $true )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1568]) ).

thf(1631,plain,
    ! [SV78: $i,SV277: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ ( sK23_SY312 @ SV277 @ SV78 ) ) @ SV78 )
        = $true )
      | ( ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 )
        = $true )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1569]) ).

thf(1632,plain,
    ! [SV278: $i,SV78: $i] :
      ( ( ( ! [SY642: $i] :
              ( ! [SY405: $i] :
                  ~ ( in @ ( ordered_pair @ SY642 @ SY405 ) @ SV78 )
              | ( in @ SY642 @ SV278 ) ) )
        = $true )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1570]) ).

thf(1633,plain,
    ! [SV78: $i,SV278: $i] :
      ( ( ( ! [SY644: $i] :
              ( ~ ( in @ SY644 @ SV278 )
              | ( in @ ( ordered_pair @ SY644 @ ( sK21_D @ SY644 @ SV278 @ SV78 ) ) @ SV78 ) ) )
        = $true )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1571]) ).

thf(1634,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
              | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
               != SV79 ) ) )
        = $false )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1572]) ).

thf(1635,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
              | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
               != SV216 ) ) )
        = $false )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1572]) ).

thf(1636,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ( sK32_D @ SV262 @ SV216 @ SV79 )
          = SV79 )
        = $true )
      | ( ( ( sK32_D @ SV262 @ SV216 @ SV79 )
          = SV216 )
        = $true )
      | ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1573]) ).

thf(1637,plain,
    ! [SV217: $i,SV79: $i,SV263: $i,SV348: $i] :
      ( ( ( ~ ( in @ SV348 @ SV263 )
          | ( SV348 = SV79 )
          | ( SV348 = SV217 ) )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1574]) ).

thf(1638,plain,
    ! [SV217: $i,SV263: $i,SV79: $i] :
      ( ( ( ~ ! [SY620: $i] :
                ( ( SY620 != SV79 )
                | ( in @ SY620 @ SV263 ) )
          | ~ ! [SY621: $i] :
                ( ( SY621 != SV217 )
                | ( in @ SY621 @ SV263 ) ) )
        = $false )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1575]) ).

thf(1639,plain,
    ! [SV349: $i,SV80: $i,SV337: $i] :
      ( ( ~ ( in @ SV337 @ ( sK9_B @ SV80 ) )
        | ~ ( subset @ SV349 @ SV337 )
        | ( in @ SV349 @ ( sK9_B @ SV80 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1576]) ).

thf(1640,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
              | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) ) )
        = $false )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1577]) ).

thf(1641,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
              | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) ) )
        = $false )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1577]) ).

thf(1642,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 )
        = $true )
      | ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 )
        = $true )
      | ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1578]) ).

thf(1643,plain,
    ! [SV222: $i,SV82: $i,SV265: $i,SV350: $i] :
      ( ( ( ~ ( in @ SV350 @ SV265 )
          | ( in @ SV350 @ SV82 )
          | ( in @ SV350 @ SV222 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1579]) ).

thf(1644,plain,
    ! [SV222: $i,SV265: $i,SV82: $i] :
      ( ( ( ~ ! [SY623: $i] :
                ( ~ ( in @ SY623 @ SV82 )
                | ( in @ SY623 @ SV265 ) )
          | ~ ! [SY624: $i] :
                ( ~ ( in @ SY624 @ SV222 )
                | ( in @ SY624 @ SV265 ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1580]) ).

thf(1645,plain,
    ! [SV183: $i,SV224: $i] :
      ( ( ( subset @ ( sK33_C @ SV224 @ SV183 ) @ SV183 )
        = $false )
      | ( ( in @ ( sK33_C @ SV224 @ SV183 ) @ SV224 )
        = $false )
      | ( ( SV224
          = ( powerset @ SV183 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1581]) ).

thf(1646,plain,
    ! [SV184: $i,SV225: $i,SV338: $i] :
      ( ( ( ~ ( in @ SV338 @ SV225 ) )
        = $true )
      | ( ( subset @ SV338 @ SV184 )
        = $true )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1582]) ).

thf(1647,plain,
    ! [SV225: $i,SV184: $i,SV339: $i] :
      ( ( ( ~ ( subset @ SV339 @ SV184 ) )
        = $true )
      | ( ( in @ SV339 @ SV225 )
        = $true )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1583]) ).

thf(1648,plain,
    ! [SV340: $i,SV319: $i,SV153: $i,SV83: $i] :
      ( ( ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV319 @ SV340 ) )
        = $false )
      | ( ( in @ SV83 @ SV319 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1585]) ).

thf(1649,plain,
    ! [SV329: $i,SV320: $i,SV153: $i,SV83: $i] :
      ( ( ( in @ ( ordered_pair @ SV83 @ SV153 ) @ ( cartesian_product2 @ SV320 @ SV329 ) )
        = $false )
      | ( ( in @ SV153 @ SV329 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1586]) ).

thf(1650,plain,
    ! [SV84: $i,SV306: $i] :
      ( ( ( ! [SY669: $i] :
              ( ~ ( subset @ SY669 @ SV306 )
              | ( in @ SY669 @ ( sK11_SY302 @ SV306 @ SV84 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1587]) ).

thf(1651,plain,
    ! [SV84: $i,SV306: $i] :
      ( ( ( in @ ( sK11_SY302 @ SV306 @ SV84 ) @ ( sK10_B @ SV84 ) )
        = $true )
      | ( ( ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1588]) ).

thf(1652,plain,
    ! [SV351: $i,SV84: $i,SV341: $i] :
      ( ( ~ ( in @ SV341 @ ( sK10_B @ SV84 ) )
        | ~ ( subset @ SV351 @ SV341 )
        | ( in @ SV351 @ ( sK10_B @ SV84 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1589]) ).

thf(1653,plain,
    ! [SV342: $i,SV185: $i,SV227: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV342 ) )
        = $true )
      | ( ( ~ ( in @ SV342 @ SV185 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1590]) ).

thf(1654,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ ( sK20_SY310 @ SV227 @ SV185 ) ) )
        = $false )
      | ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1591]) ).

thf(1655,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( ~ ( in @ ( sK20_SY310 @ SV227 @ SV185 ) @ SV185 ) )
        = $false )
      | ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1591]) ).

thf(1656,plain,
    ! [SV228: $i,SV186: $i,SV343: $i] :
      ( ( ( ! [SY682: $i] :
              ( ~ ( in @ SV343 @ SY682 )
              | ~ ( in @ SY682 @ SV186 ) ) )
        = $true )
      | ( ( in @ SV343 @ SV228 )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1592]) ).

thf(1657,plain,
    ! [SV186: $i,SV228: $i,SV344: $i] :
      ( ( ( ~ ( in @ SV344 @ SV228 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV344 @ ( sK18_D @ SV344 @ SV228 @ SV186 ) )
              | ~ ( in @ ( sK18_D @ SV344 @ SV228 @ SV186 ) @ SV186 ) ) )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1593]) ).

thf(1658,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1594]) ).

thf(1659,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
              | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1595]) ).

thf(1660,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ~ ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
              | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) ) )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1595]) ).

thf(1661,plain,
    ! [SV270: $i,SV236: $i,SV87: $i,SV352: $i] :
      ( ( ( ~ ( in @ SV352 @ SV87 )
          | ~ ( in @ SV352 @ SV236 )
          | ( in @ SV352 @ SV270 ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1596]) ).

thf(1662,plain,
    ! [SV236: $i,SV87: $i,SV270: $i] :
      ( ( ( ~ ! [SY629: $i] :
                ( ~ ( in @ SY629 @ SV270 )
                | ( in @ SY629 @ SV87 ) )
          | ~ ! [SY630: $i] :
                ( ~ ( in @ SY630 @ SV270 )
                | ( in @ SY630 @ SV236 ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1597]) ).

thf(1663,plain,
    ! [SV272: $i,SV244: $i,SV91: $i,SV353: $i] :
      ( ( ( ! [SY683: $i] :
              ( ~ ( in @ SV353 @ SV91 )
              | ~ ( in @ SY683 @ SV244 )
              | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
               != ( ordered_pair @ SV353 @ SY683 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1600]) ).

thf(1664,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
                | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) )
          | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
           != ( ordered_pair @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) ) ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1601]) ).

thf(1665,plain,
    ! [SV273: $i,SV354: $i,SV245: $i,SV91: $i] :
      ( ( ( ! [SY684: $i,SY685: $i] :
              ( ~ ( in @ SY684 @ SV91 )
              | ~ ( in @ SY685 @ SV245 )
              | ( SV354
               != ( ordered_pair @ SY684 @ SY685 ) ) )
          | ( in @ SV354 @ SV273 ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1602]) ).

thf(1666,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( ~ ( in @ SV355 @ SV273 )
          | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                    | ~ ( in @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
              | ( SV355
               != ( ordered_pair @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) ) ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1603]) ).

thf(1667,plain,
    ! [SV289: $i,SV331: $i] :
      ( ( ( element @ SV331 @ SV289 )
        = $false )
      | ( ( empty @ SV331 )
        = $true )
      | ( ( empty @ SV289 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1606]) ).

thf(1668,plain,
    ! [SV290: $i,SV332: $i] :
      ( ( ( empty @ SV332 )
        = $false )
      | ( ( element @ SV332 @ SV290 )
        = $true )
      | ( ( empty @ SV290 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1607]) ).

thf(1669,plain,
    ! [SV92: $i,SV291: $i] :
      ( ( ( ! [SY653: $i] :
              ~ ( in @ ( ordered_pair @ SY653 @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 ) )
        = $true )
      | ( ( ~ ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1608]) ).

thf(1670,plain,
    ! [SV92: $i,SV291: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV291 @ SV92 ) @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
        = $true )
      | ( ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 )
        = $true )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1609]) ).

thf(1671,plain,
    ! [SV292: $i,SV92: $i] :
      ( ( ( ! [SY654: $i] :
              ( ! [SY474: $i] :
                  ~ ( in @ ( ordered_pair @ SY474 @ SY654 ) @ SV92 )
              | ( in @ SY654 @ SV292 ) ) )
        = $true )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1610]) ).

thf(1672,plain,
    ! [SV92: $i,SV292: $i] :
      ( ( ( ! [SY656: $i] :
              ( ~ ( in @ SY656 @ SV292 )
              | ( in @ ( ordered_pair @ ( sK14_D @ SY656 @ SV292 @ SV92 ) @ SY656 ) @ SV92 ) ) )
        = $true )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1611]) ).

thf(1673,plain,
    ! [SV345: $i,SV325: $i,SV156: $i,SV93: $i] :
      ( ( ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV325 @ SV345 ) )
        = $false )
      | ( ( in @ SV93 @ SV325 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1613]) ).

thf(1674,plain,
    ! [SV333: $i,SV326: $i,SV156: $i,SV93: $i] :
      ( ( ( in @ ( ordered_pair @ SV93 @ SV156 ) @ ( cartesian_product2 @ SV326 @ SV333 ) )
        = $false )
      | ( ( in @ SV156 @ SV333 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1614]) ).

thf(1675,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 )
                  | ~ ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) ) )
              | ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) ) )
        = $false )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1615]) ).

thf(1676,plain,
    ! [SV327: $i,SV296: $i] :
      ( ( ( ~ ( ! [SY676: $i] :
                  ( ~ ( in @ SY676 @ SV296 )
                  | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SY676 ) )
              | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) ) )
        = $false )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1615]) ).

thf(1677,plain,
    ! [SV297: $i,SV328: $i] :
      ( ( ( ~ ! [SY677: $i] :
                ( ~ ( ~ ( in @ ( sK36_D @ SY677 @ SV328 @ SV297 ) @ SV297 )
                    | ~ ~ ( in @ SY677 @ ( sK36_D @ SY677 @ SV328 @ SV297 ) ) )
                | ( in @ SY677 @ SV328 ) )
          | ~ ! [SY678: $i] :
                ( ~ ( in @ SY678 @ SV328 )
                | ! [SY664: $i] :
                    ( ~ ( in @ SY664 @ SV297 )
                    | ( in @ SY678 @ SY664 ) ) ) )
        = $false )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1616]) ).

thf(1678,plain,
    ! [SV298: $i,SV335: $i] :
      ( ( ( SV335
          = ( set_meet @ SV298 ) )
        = $false )
      | ( ( SV335 = empty_set )
        = $true )
      | ( ( SV298 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1617]) ).

thf(1679,plain,
    ! [SV299: $i,SV336: $i] :
      ( ( ( SV336 = empty_set )
        = $false )
      | ( ( SV336
          = ( set_meet @ SV299 ) )
        = $true )
      | ( ( SV299 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1618]) ).

thf(1680,plain,
    ! [SV205: $i,SV254: $i] :
      ( ( ( in @ ( sK35_C @ SV254 @ SV205 ) @ SV254 )
        = $false )
      | ( ( ( sK35_C @ SV254 @ SV205 )
          = SV205 )
        = $false )
      | ( ( SV254
          = ( singleton @ SV205 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1619]) ).

thf(1681,plain,
    ! [SV255: $i,SV206: $i,SV346: $i] :
      ( ( ( ( SV346 != SV206 ) )
        = $true )
      | ( ( in @ SV346 @ SV255 )
        = $true )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1620]) ).

thf(1682,plain,
    ! [SV206: $i,SV255: $i,SV347: $i] :
      ( ( ( ~ ( in @ SV347 @ SV255 ) )
        = $true )
      | ( ( SV347 = SV206 )
        = $true )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1621]) ).

thf(1683,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 ) )
        = $true )
      | ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
        = $true )
      | ( ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1622]) ).

thf(1684,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
              | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) ) )
        = $false )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1623]) ).

thf(1685,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
              | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) ) )
        = $false )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1623]) ).

thf(1686,plain,
    ! [SV276: $i,SV257: $i,SV94: $i,SV356: $i] :
      ( ( ( ~ ( in @ SV356 @ SV94 )
          | ( in @ SV356 @ SV257 )
          | ( in @ SV356 @ SV276 ) )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1624]) ).

thf(1687,plain,
    ! [SV257: $i,SV94: $i,SV276: $i] :
      ( ( ( ~ ! [SY639: $i] :
                ( ~ ( in @ SY639 @ SV276 )
                | ( in @ SY639 @ SV94 ) )
          | ~ ! [SY640: $i] :
                ( ~ ( in @ SY640 @ SV276 )
                | ~ ( in @ SY640 @ SV257 ) ) )
        = $false )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1625]) ).

thf(1688,plain,
    ! [SV95: $i,SV315: $i,SV157: $i] :
      ( ( ( disjoint @ SV157 @ SV315 )
        = $false )
      | ( ( subset @ SV157 @ ( subset_complement @ SV95 @ SV315 ) )
        = $true )
      | ( ( element @ SV315 @ ( powerset @ SV95 ) )
        = $false )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1626]) ).

thf(1689,plain,
    ! [SV316: $i,SV95: $i,SV157: $i] :
      ( ( ( subset @ SV157 @ ( subset_complement @ SV95 @ SV316 ) )
        = $false )
      | ( ( disjoint @ SV157 @ SV316 )
        = $true )
      | ( ( element @ SV316 @ ( powerset @ SV95 ) )
        = $false )
      | ( ( element @ SV157 @ ( powerset @ SV95 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1627]) ).

thf(1690,plain,
    ! [SV357: $i,SV78: $i,SV277: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ SV357 ) @ SV78 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) )
        = $true )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1630]) ).

thf(1691,plain,
    ! [SV278: $i,SV78: $i,SV358: $i] :
      ( ( ( ! [SY686: $i] :
              ~ ( in @ ( ordered_pair @ SV358 @ SY686 ) @ SV78 )
          | ( in @ SV358 @ SV278 ) )
        = $true )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1632]) ).

thf(1692,plain,
    ! [SV78: $i,SV278: $i,SV359: $i] :
      ( ( ( ~ ( in @ SV359 @ SV278 )
          | ( in @ ( ordered_pair @ SV359 @ ( sK21_D @ SV359 @ SV278 @ SV78 ) ) @ SV78 ) )
        = $true )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1633]) ).

thf(1693,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
          | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
           != SV79 ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1634]) ).

thf(1694,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
          | ( ( sK32_D @ SV262 @ SV216 @ SV79 )
           != SV216 ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1635]) ).

thf(1695,plain,
    ! [SV217: $i,SV79: $i,SV263: $i,SV348: $i] :
      ( ( ( ~ ( in @ SV348 @ SV263 ) )
        = $true )
      | ( ( ( SV348 = SV79 )
          | ( SV348 = SV217 ) )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1637]) ).

thf(1696,plain,
    ! [SV217: $i,SV263: $i,SV79: $i] :
      ( ( ( ~ ! [SY620: $i] :
                ( ( SY620 != SV79 )
                | ( in @ SY620 @ SV263 ) ) )
        = $false )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1638]) ).

thf(1697,plain,
    ! [SV79: $i,SV263: $i,SV217: $i] :
      ( ( ( ~ ! [SY621: $i] :
                ( ( SY621 != SV217 )
                | ( in @ SY621 @ SV263 ) ) )
        = $false )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1638]) ).

thf(1698,plain,
    ! [SV349: $i,SV80: $i,SV337: $i] :
      ( ( ( ~ ( in @ SV337 @ ( sK9_B @ SV80 ) )
          | ~ ( subset @ SV349 @ SV337 ) )
        = $true )
      | ( ( in @ SV349 @ ( sK9_B @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1639]) ).

thf(1699,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
          | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1640]) ).

thf(1700,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
          | ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1641]) ).

thf(1701,plain,
    ! [SV222: $i,SV82: $i,SV265: $i,SV350: $i] :
      ( ( ( ~ ( in @ SV350 @ SV265 ) )
        = $true )
      | ( ( ( in @ SV350 @ SV82 )
          | ( in @ SV350 @ SV222 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1643]) ).

thf(1702,plain,
    ! [SV222: $i,SV265: $i,SV82: $i] :
      ( ( ( ~ ! [SY623: $i] :
                ( ~ ( in @ SY623 @ SV82 )
                | ( in @ SY623 @ SV265 ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1644]) ).

thf(1703,plain,
    ! [SV82: $i,SV265: $i,SV222: $i] :
      ( ( ( ~ ! [SY624: $i] :
                ( ~ ( in @ SY624 @ SV222 )
                | ( in @ SY624 @ SV265 ) ) )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1644]) ).

thf(1704,plain,
    ! [SV184: $i,SV225: $i,SV338: $i] :
      ( ( ( in @ SV338 @ SV225 )
        = $false )
      | ( ( subset @ SV338 @ SV184 )
        = $true )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1646]) ).

thf(1705,plain,
    ! [SV225: $i,SV184: $i,SV339: $i] :
      ( ( ( subset @ SV339 @ SV184 )
        = $false )
      | ( ( in @ SV339 @ SV225 )
        = $true )
      | ( ( SV225
          = ( powerset @ SV184 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1647]) ).

thf(1706,plain,
    ! [SV84: $i,SV306: $i,SV360: $i] :
      ( ( ( ~ ( subset @ SV360 @ SV306 )
          | ( in @ SV360 @ ( sK11_SY302 @ SV306 @ SV84 ) ) )
        = $true )
      | ( ( ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1650]) ).

thf(1707,plain,
    ! [SV84: $i,SV306: $i] :
      ( ( ( in @ SV306 @ ( sK10_B @ SV84 ) )
        = $false )
      | ( ( in @ ( sK11_SY302 @ SV306 @ SV84 ) @ ( sK10_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1651]) ).

thf(1708,plain,
    ! [SV351: $i,SV84: $i,SV341: $i] :
      ( ( ( ~ ( in @ SV341 @ ( sK10_B @ SV84 ) )
          | ~ ( subset @ SV351 @ SV341 ) )
        = $true )
      | ( ( in @ SV351 @ ( sK10_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1652]) ).

thf(1709,plain,
    ! [SV342: $i,SV185: $i,SV227: $i] :
      ( ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV342 )
        = $false )
      | ( ( ~ ( in @ SV342 @ SV185 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1653]) ).

thf(1710,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ ( sK20_SY310 @ SV227 @ SV185 ) )
        = $true )
      | ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1654]) ).

thf(1711,plain,
    ! [SV185: $i,SV227: $i] :
      ( ( ( in @ ( sK20_SY310 @ SV227 @ SV185 ) @ SV185 )
        = $true )
      | ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1655]) ).

thf(1712,plain,
    ! [SV228: $i,SV186: $i,SV361: $i,SV343: $i] :
      ( ( ( ~ ( in @ SV343 @ SV361 )
          | ~ ( in @ SV361 @ SV186 ) )
        = $true )
      | ( ( in @ SV343 @ SV228 )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1656]) ).

thf(1713,plain,
    ! [SV186: $i,SV228: $i,SV344: $i] :
      ( ( ( in @ SV344 @ SV228 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV344 @ ( sK18_D @ SV344 @ SV228 @ SV186 ) )
              | ~ ( in @ ( sK18_D @ SV344 @ SV228 @ SV186 ) @ SV186 ) ) )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1657]) ).

thf(1714,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
        = $false )
      | ( ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1658]) ).

thf(1715,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
          | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1659]) ).

thf(1716,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
          | ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1660]) ).

thf(1717,plain,
    ! [SV270: $i,SV236: $i,SV87: $i,SV352: $i] :
      ( ( ( ~ ( in @ SV352 @ SV87 )
          | ~ ( in @ SV352 @ SV236 ) )
        = $true )
      | ( ( in @ SV352 @ SV270 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1661]) ).

thf(1718,plain,
    ! [SV236: $i,SV87: $i,SV270: $i] :
      ( ( ( ~ ! [SY629: $i] :
                ( ~ ( in @ SY629 @ SV270 )
                | ( in @ SY629 @ SV87 ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1662]) ).

thf(1719,plain,
    ! [SV87: $i,SV236: $i,SV270: $i] :
      ( ( ( ~ ! [SY630: $i] :
                ( ~ ( in @ SY630 @ SV270 )
                | ( in @ SY630 @ SV236 ) ) )
        = $false )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1662]) ).

thf(1720,plain,
    ! [SV272: $i,SV244: $i,SV362: $i,SV91: $i,SV353: $i] :
      ( ( ( ~ ( in @ SV353 @ SV91 )
          | ~ ( in @ SV362 @ SV244 )
          | ( ( sK28_D @ SV272 @ SV244 @ SV91 )
           != ( ordered_pair @ SV353 @ SV362 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1663]) ).

thf(1721,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
                | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1664]) ).

thf(1722,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ( ( sK28_D @ SV272 @ SV244 @ SV91 )
           != ( ordered_pair @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) ) ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1664]) ).

thf(1723,plain,
    ! [SV273: $i,SV354: $i,SV245: $i,SV91: $i] :
      ( ( ( ! [SY684: $i,SY685: $i] :
              ( ~ ( in @ SY684 @ SV91 )
              | ~ ( in @ SY685 @ SV245 )
              | ( SV354
               != ( ordered_pair @ SY684 @ SY685 ) ) ) )
        = $true )
      | ( ( in @ SV354 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1665]) ).

thf(1724,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( ~ ( in @ SV355 @ SV273 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                    | ~ ( in @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
              | ( SV355
               != ( ordered_pair @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) ) ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1666]) ).

thf(1725,plain,
    ! [SV92: $i,SV291: $i,SV363: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV363 @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 ) )
        = $true )
      | ( ( ~ ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1669]) ).

thf(1726,plain,
    ! [SV292: $i,SV92: $i,SV364: $i] :
      ( ( ( ! [SY687: $i] :
              ~ ( in @ ( ordered_pair @ SY687 @ SV364 ) @ SV92 )
          | ( in @ SV364 @ SV292 ) )
        = $true )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1671]) ).

thf(1727,plain,
    ! [SV92: $i,SV292: $i,SV365: $i] :
      ( ( ( ~ ( in @ SV365 @ SV292 )
          | ( in @ ( ordered_pair @ ( sK14_D @ SV365 @ SV292 @ SV92 ) @ SV365 ) @ SV92 ) )
        = $true )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1672]) ).

thf(1728,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 )
              | ~ ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) ) )
          | ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1675]) ).

thf(1729,plain,
    ! [SV327: $i,SV296: $i] :
      ( ( ( ! [SY676: $i] :
              ( ~ ( in @ SY676 @ SV296 )
              | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SY676 ) )
          | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1676]) ).

thf(1730,plain,
    ! [SV297: $i,SV328: $i] :
      ( ( ( ~ ! [SY677: $i] :
                ( ~ ( ~ ( in @ ( sK36_D @ SY677 @ SV328 @ SV297 ) @ SV297 )
                    | ~ ~ ( in @ SY677 @ ( sK36_D @ SY677 @ SV328 @ SV297 ) ) )
                | ( in @ SY677 @ SV328 ) ) )
        = $false )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1677]) ).

thf(1731,plain,
    ! [SV297: $i,SV328: $i] :
      ( ( ( ~ ! [SY678: $i] :
                ( ~ ( in @ SY678 @ SV328 )
                | ! [SY664: $i] :
                    ( ~ ( in @ SY664 @ SV297 )
                    | ( in @ SY678 @ SY664 ) ) ) )
        = $false )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1677]) ).

thf(1732,plain,
    ! [SV255: $i,SV206: $i,SV346: $i] :
      ( ( ( SV346 = SV206 )
        = $false )
      | ( ( in @ SV346 @ SV255 )
        = $true )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1681]) ).

thf(1733,plain,
    ! [SV206: $i,SV255: $i,SV347: $i] :
      ( ( ( in @ SV347 @ SV255 )
        = $false )
      | ( ( SV347 = SV206 )
        = $true )
      | ( ( SV255
          = ( singleton @ SV206 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1682]) ).

thf(1734,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
        = $false )
      | ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
        = $true )
      | ( ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1683]) ).

thf(1735,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
          | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1684]) ).

thf(1736,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
          | ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 ) )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1685]) ).

thf(1737,plain,
    ! [SV276: $i,SV257: $i,SV94: $i,SV356: $i] :
      ( ( ( ~ ( in @ SV356 @ SV94 )
          | ( in @ SV356 @ SV257 ) )
        = $true )
      | ( ( in @ SV356 @ SV276 )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1686]) ).

thf(1738,plain,
    ! [SV257: $i,SV94: $i,SV276: $i] :
      ( ( ( ~ ! [SY639: $i] :
                ( ~ ( in @ SY639 @ SV276 )
                | ( in @ SY639 @ SV94 ) ) )
        = $false )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1687]) ).

thf(1739,plain,
    ! [SV94: $i,SV257: $i,SV276: $i] :
      ( ( ( ~ ! [SY640: $i] :
                ( ~ ( in @ SY640 @ SV276 )
                | ~ ( in @ SY640 @ SV257 ) ) )
        = $false )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1687]) ).

thf(1740,plain,
    ! [SV357: $i,SV78: $i,SV277: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ SV357 ) @ SV78 )
        = $false )
      | ( ( ~ ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 ) )
        = $true )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1690]) ).

thf(1741,plain,
    ! [SV278: $i,SV78: $i,SV358: $i] :
      ( ( ( ! [SY686: $i] :
              ~ ( in @ ( ordered_pair @ SV358 @ SY686 ) @ SV78 ) )
        = $true )
      | ( ( in @ SV358 @ SV278 )
        = $true )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1691]) ).

thf(1742,plain,
    ! [SV78: $i,SV278: $i,SV359: $i] :
      ( ( ( ~ ( in @ SV359 @ SV278 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV359 @ ( sK21_D @ SV359 @ SV278 @ SV78 ) ) @ SV78 )
        = $true )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1692]) ).

thf(1743,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 ) )
        = $true )
      | ( ( ( ( sK32_D @ SV262 @ SV216 @ SV79 )
           != SV79 ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1693]) ).

thf(1744,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ~ ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 ) )
        = $true )
      | ( ( ( ( sK32_D @ SV262 @ SV216 @ SV79 )
           != SV216 ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1694]) ).

thf(1745,plain,
    ! [SV217: $i,SV79: $i,SV263: $i,SV348: $i] :
      ( ( ( in @ SV348 @ SV263 )
        = $false )
      | ( ( ( SV348 = SV79 )
          | ( SV348 = SV217 ) )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1695]) ).

thf(1746,plain,
    ! [SV217: $i,SV263: $i,SV79: $i] :
      ( ( ( ! [SY620: $i] :
              ( ( SY620 != SV79 )
              | ( in @ SY620 @ SV263 ) ) )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1696]) ).

thf(1747,plain,
    ! [SV79: $i,SV263: $i,SV217: $i] :
      ( ( ( ! [SY621: $i] :
              ( ( SY621 != SV217 )
              | ( in @ SY621 @ SV263 ) ) )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1697]) ).

thf(1748,plain,
    ! [SV349: $i,SV80: $i,SV337: $i] :
      ( ( ( ~ ( in @ SV337 @ ( sK9_B @ SV80 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV349 @ SV337 ) )
        = $true )
      | ( ( in @ SV349 @ ( sK9_B @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1698]) ).

thf(1749,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 ) )
        = $true )
      | ( ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1699]) ).

thf(1750,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 ) )
        = $true )
      | ( ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1700]) ).

thf(1751,plain,
    ! [SV222: $i,SV82: $i,SV265: $i,SV350: $i] :
      ( ( ( in @ SV350 @ SV265 )
        = $false )
      | ( ( ( in @ SV350 @ SV82 )
          | ( in @ SV350 @ SV222 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1701]) ).

thf(1752,plain,
    ! [SV222: $i,SV265: $i,SV82: $i] :
      ( ( ( ! [SY623: $i] :
              ( ~ ( in @ SY623 @ SV82 )
              | ( in @ SY623 @ SV265 ) ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1702]) ).

thf(1753,plain,
    ! [SV82: $i,SV265: $i,SV222: $i] :
      ( ( ( ! [SY624: $i] :
              ( ~ ( in @ SY624 @ SV222 )
              | ( in @ SY624 @ SV265 ) ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1703]) ).

thf(1754,plain,
    ! [SV84: $i,SV306: $i,SV360: $i] :
      ( ( ( ~ ( subset @ SV360 @ SV306 ) )
        = $true )
      | ( ( in @ SV360 @ ( sK11_SY302 @ SV306 @ SV84 ) )
        = $true )
      | ( ( ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1706]) ).

thf(1755,plain,
    ! [SV351: $i,SV84: $i,SV341: $i] :
      ( ( ( ~ ( in @ SV341 @ ( sK10_B @ SV84 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV351 @ SV341 ) )
        = $true )
      | ( ( in @ SV351 @ ( sK10_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1708]) ).

thf(1756,plain,
    ! [SV227: $i,SV185: $i,SV342: $i] :
      ( ( ( in @ SV342 @ SV185 )
        = $false )
      | ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV342 )
        = $false )
      | ( ( ~ ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 ) )
        = $true )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1709]) ).

thf(1757,plain,
    ! [SV228: $i,SV186: $i,SV361: $i,SV343: $i] :
      ( ( ( ~ ( in @ SV343 @ SV361 ) )
        = $true )
      | ( ( ~ ( in @ SV361 @ SV186 ) )
        = $true )
      | ( ( in @ SV343 @ SV228 )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1712]) ).

thf(1758,plain,
    ! [SV186: $i,SV228: $i,SV344: $i] :
      ( ( ( ~ ( in @ SV344 @ ( sK18_D @ SV344 @ SV228 @ SV186 ) )
          | ~ ( in @ ( sK18_D @ SV344 @ SV228 @ SV186 ) @ SV186 ) )
        = $false )
      | ( ( in @ SV344 @ SV228 )
        = $false )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1713]) ).

thf(1759,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
        = $false )
      | ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
        = $false )
      | ( ( ~ ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 ) )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1714]) ).

thf(1760,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
        = $true )
      | ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1715]) ).

thf(1761,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
        = $true )
      | ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 )
        = $true )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1716]) ).

thf(1762,plain,
    ! [SV270: $i,SV236: $i,SV87: $i,SV352: $i] :
      ( ( ( ~ ( in @ SV352 @ SV87 ) )
        = $true )
      | ( ( ~ ( in @ SV352 @ SV236 ) )
        = $true )
      | ( ( in @ SV352 @ SV270 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1717]) ).

thf(1763,plain,
    ! [SV236: $i,SV87: $i,SV270: $i] :
      ( ( ( ! [SY629: $i] :
              ( ~ ( in @ SY629 @ SV270 )
              | ( in @ SY629 @ SV87 ) ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1718]) ).

thf(1764,plain,
    ! [SV87: $i,SV236: $i,SV270: $i] :
      ( ( ( ! [SY630: $i] :
              ( ~ ( in @ SY630 @ SV270 )
              | ( in @ SY630 @ SV236 ) ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1719]) ).

thf(1765,plain,
    ! [SV272: $i,SV244: $i,SV362: $i,SV91: $i,SV353: $i] :
      ( ( ( ~ ( in @ SV353 @ SV91 )
          | ~ ( in @ SV362 @ SV244 ) )
        = $true )
      | ( ( ( ( sK28_D @ SV272 @ SV244 @ SV91 )
           != ( ordered_pair @ SV353 @ SV362 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1720]) ).

thf(1766,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
              | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) ) )
        = $true )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1721]) ).

thf(1767,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ( sK28_D @ SV272 @ SV244 @ SV91 )
          = ( ordered_pair @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) ) )
        = $true )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1722]) ).

thf(1768,plain,
    ! [SV273: $i,SV354: $i,SV245: $i,SV91: $i,SV366: $i] :
      ( ( ( ! [SY688: $i] :
              ( ~ ( in @ SV366 @ SV91 )
              | ~ ( in @ SY688 @ SV245 )
              | ( SV354
               != ( ordered_pair @ SV366 @ SY688 ) ) ) )
        = $true )
      | ( ( in @ SV354 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1723]) ).

thf(1769,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                    | ~ ( in @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
              | ( SV355
               != ( ordered_pair @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) ) ) ) )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1724]) ).

thf(1770,plain,
    ! [SV92: $i,SV291: $i,SV363: $i] :
      ( ( ( in @ ( ordered_pair @ SV363 @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
        = $false )
      | ( ( ~ ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 ) )
        = $true )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1725]) ).

thf(1771,plain,
    ! [SV292: $i,SV92: $i,SV364: $i] :
      ( ( ( ! [SY687: $i] :
              ~ ( in @ ( ordered_pair @ SY687 @ SV364 ) @ SV92 ) )
        = $true )
      | ( ( in @ SV364 @ SV292 )
        = $true )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1726]) ).

thf(1772,plain,
    ! [SV92: $i,SV292: $i,SV365: $i] :
      ( ( ( ~ ( in @ SV365 @ SV292 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK14_D @ SV365 @ SV292 @ SV92 ) @ SV365 ) @ SV92 )
        = $true )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1727]) ).

thf(1773,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 )
              | ~ ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1728]) ).

thf(1774,plain,
    ! [SV327: $i,SV296: $i] :
      ( ( ( ! [SY676: $i] :
              ( ~ ( in @ SY676 @ SV296 )
              | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SY676 ) ) )
        = $true )
      | ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1729]) ).

thf(1775,plain,
    ! [SV297: $i,SV328: $i] :
      ( ( ( ! [SY677: $i] :
              ( ~ ( ~ ( in @ ( sK36_D @ SY677 @ SV328 @ SV297 ) @ SV297 )
                  | ~ ~ ( in @ SY677 @ ( sK36_D @ SY677 @ SV328 @ SV297 ) ) )
              | ( in @ SY677 @ SV328 ) ) )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1730]) ).

thf(1776,plain,
    ! [SV297: $i,SV328: $i] :
      ( ( ( ! [SY678: $i] :
              ( ~ ( in @ SY678 @ SV328 )
              | ! [SY664: $i] :
                  ( ~ ( in @ SY664 @ SV297 )
                  | ( in @ SY678 @ SY664 ) ) ) )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1731]) ).

thf(1777,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 )
        = $false )
      | ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
        = $true )
      | ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
        = $false )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1734]) ).

thf(1778,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV94 )
        = $true )
      | ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1735]) ).

thf(1779,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 ) )
        = $true )
      | ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1736]) ).

thf(1780,plain,
    ! [SV276: $i,SV257: $i,SV94: $i,SV356: $i] :
      ( ( ( ~ ( in @ SV356 @ SV94 ) )
        = $true )
      | ( ( in @ SV356 @ SV257 )
        = $true )
      | ( ( in @ SV356 @ SV276 )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1737]) ).

thf(1781,plain,
    ! [SV257: $i,SV94: $i,SV276: $i] :
      ( ( ( ! [SY639: $i] :
              ( ~ ( in @ SY639 @ SV276 )
              | ( in @ SY639 @ SV94 ) ) )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1738]) ).

thf(1782,plain,
    ! [SV94: $i,SV257: $i,SV276: $i] :
      ( ( ( ! [SY640: $i] :
              ( ~ ( in @ SY640 @ SV276 )
              | ~ ( in @ SY640 @ SV257 ) ) )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1739]) ).

thf(1783,plain,
    ! [SV357: $i,SV78: $i,SV277: $i] :
      ( ( ( in @ ( sK22_C @ SV277 @ SV78 ) @ SV277 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK22_C @ SV277 @ SV78 ) @ SV357 ) @ SV78 )
        = $false )
      | ( ( SV277
          = ( relation_dom @ SV78 ) )
        = $true )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1740]) ).

thf(1784,plain,
    ! [SV278: $i,SV78: $i,SV367: $i,SV358: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV358 @ SV367 ) @ SV78 ) )
        = $true )
      | ( ( in @ SV358 @ SV278 )
        = $true )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1741]) ).

thf(1785,plain,
    ! [SV78: $i,SV278: $i,SV359: $i] :
      ( ( ( in @ SV359 @ SV278 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV359 @ ( sK21_D @ SV359 @ SV278 @ SV78 ) ) @ SV78 )
        = $true )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1742]) ).

thf(1786,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
        = $false )
      | ( ( ( ( sK32_D @ SV262 @ SV216 @ SV79 )
           != SV79 ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1743]) ).

thf(1787,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
        = $false )
      | ( ( ( ( sK32_D @ SV262 @ SV216 @ SV79 )
           != SV216 ) )
        = $true )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1744]) ).

thf(1788,plain,
    ! [SV263: $i,SV217: $i,SV79: $i,SV348: $i] :
      ( ( ( SV348 = SV79 )
        = $true )
      | ( ( SV348 = SV217 )
        = $true )
      | ( ( in @ SV348 @ SV263 )
        = $false )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1745]) ).

thf(1789,plain,
    ! [SV217: $i,SV263: $i,SV79: $i,SV368: $i] :
      ( ( ( ( SV368 != SV79 )
          | ( in @ SV368 @ SV263 ) )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1746]) ).

thf(1790,plain,
    ! [SV79: $i,SV263: $i,SV217: $i,SV369: $i] :
      ( ( ( ( SV369 != SV217 )
          | ( in @ SV369 @ SV263 ) )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1747]) ).

thf(1791,plain,
    ! [SV349: $i,SV80: $i,SV337: $i] :
      ( ( ( in @ SV337 @ ( sK9_B @ SV80 ) )
        = $false )
      | ( ( ~ ( subset @ SV349 @ SV337 ) )
        = $true )
      | ( ( in @ SV349 @ ( sK9_B @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1748]) ).

thf(1792,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
        = $false )
      | ( ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1749]) ).

thf(1793,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
        = $false )
      | ( ( ~ ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 ) )
        = $true )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1750]) ).

thf(1794,plain,
    ! [SV265: $i,SV222: $i,SV82: $i,SV350: $i] :
      ( ( ( in @ SV350 @ SV82 )
        = $true )
      | ( ( in @ SV350 @ SV222 )
        = $true )
      | ( ( in @ SV350 @ SV265 )
        = $false )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1751]) ).

thf(1795,plain,
    ! [SV222: $i,SV265: $i,SV82: $i,SV370: $i] :
      ( ( ( ~ ( in @ SV370 @ SV82 )
          | ( in @ SV370 @ SV265 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1752]) ).

thf(1796,plain,
    ! [SV82: $i,SV265: $i,SV222: $i,SV371: $i] :
      ( ( ( ~ ( in @ SV371 @ SV222 )
          | ( in @ SV371 @ SV265 ) )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1753]) ).

thf(1797,plain,
    ! [SV84: $i,SV306: $i,SV360: $i] :
      ( ( ( subset @ SV360 @ SV306 )
        = $false )
      | ( ( in @ SV360 @ ( sK11_SY302 @ SV306 @ SV84 ) )
        = $true )
      | ( ( ~ ( in @ SV306 @ ( sK10_B @ SV84 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1754]) ).

thf(1798,plain,
    ! [SV351: $i,SV84: $i,SV341: $i] :
      ( ( ( in @ SV341 @ ( sK10_B @ SV84 ) )
        = $false )
      | ( ( ~ ( subset @ SV351 @ SV341 ) )
        = $true )
      | ( ( in @ SV351 @ ( sK10_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1755]) ).

thf(1799,plain,
    ! [SV342: $i,SV185: $i,SV227: $i] :
      ( ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV227 )
        = $false )
      | ( ( in @ ( sK19_C @ SV227 @ SV185 ) @ SV342 )
        = $false )
      | ( ( in @ SV342 @ SV185 )
        = $false )
      | ( ( SV227
          = ( union @ SV185 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1756]) ).

thf(1800,plain,
    ! [SV228: $i,SV186: $i,SV361: $i,SV343: $i] :
      ( ( ( in @ SV343 @ SV361 )
        = $false )
      | ( ( ~ ( in @ SV361 @ SV186 ) )
        = $true )
      | ( ( in @ SV343 @ SV228 )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1757]) ).

thf(1801,plain,
    ! [SV186: $i,SV228: $i,SV344: $i] :
      ( ( ( ~ ( in @ SV344 @ ( sK18_D @ SV344 @ SV228 @ SV186 ) ) )
        = $false )
      | ( ( in @ SV344 @ SV228 )
        = $false )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1758]) ).

thf(1802,plain,
    ! [SV186: $i,SV228: $i,SV344: $i] :
      ( ( ( ~ ( in @ ( sK18_D @ SV344 @ SV228 @ SV186 ) @ SV186 ) )
        = $false )
      | ( ( in @ SV344 @ SV228 )
        = $false )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1758]) ).

thf(1803,plain,
    ! [SV87: $i,SV235: $i,SV269: $i] :
      ( ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV269 )
        = $false )
      | ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV87 )
        = $false )
      | ( ( in @ ( sK24_D @ SV269 @ SV235 @ SV87 ) @ SV235 )
        = $false )
      | ( ( SV269
          = ( set_intersection2 @ SV87 @ SV235 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1759]) ).

thf(1804,plain,
    ! [SV270: $i,SV236: $i,SV87: $i,SV352: $i] :
      ( ( ( in @ SV352 @ SV87 )
        = $false )
      | ( ( ~ ( in @ SV352 @ SV236 ) )
        = $true )
      | ( ( in @ SV352 @ SV270 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1762]) ).

thf(1805,plain,
    ! [SV236: $i,SV87: $i,SV270: $i,SV372: $i] :
      ( ( ( ~ ( in @ SV372 @ SV270 )
          | ( in @ SV372 @ SV87 ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1763]) ).

thf(1806,plain,
    ! [SV87: $i,SV236: $i,SV270: $i,SV373: $i] :
      ( ( ( ~ ( in @ SV373 @ SV270 )
          | ( in @ SV373 @ SV236 ) )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1764]) ).

thf(1807,plain,
    ! [SV272: $i,SV244: $i,SV362: $i,SV91: $i,SV353: $i] :
      ( ( ( ~ ( in @ SV353 @ SV91 ) )
        = $true )
      | ( ( ~ ( in @ SV362 @ SV244 ) )
        = $true )
      | ( ( ( ( sK28_D @ SV272 @ SV244 @ SV91 )
           != ( ordered_pair @ SV353 @ SV362 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1765]) ).

thf(1808,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
          | ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1766]) ).

thf(1809,plain,
    ! [SV273: $i,SV354: $i,SV245: $i,SV374: $i,SV91: $i,SV366: $i] :
      ( ( ( ~ ( in @ SV366 @ SV91 )
          | ~ ( in @ SV374 @ SV245 )
          | ( SV354
           != ( ordered_pair @ SV366 @ SV374 ) ) )
        = $true )
      | ( ( in @ SV354 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1768]) ).

thf(1810,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                | ~ ( in @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
          | ( SV355
           != ( ordered_pair @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) ) ) )
        = $false )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1769]) ).

thf(1811,plain,
    ! [SV363: $i,SV92: $i,SV291: $i] :
      ( ( ( in @ ( sK15_C @ SV291 @ SV92 ) @ SV291 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV363 @ ( sK15_C @ SV291 @ SV92 ) ) @ SV92 )
        = $false )
      | ( ( SV291
          = ( relation_rng @ SV92 ) )
        = $true )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1770]) ).

thf(1812,plain,
    ! [SV292: $i,SV92: $i,SV364: $i,SV375: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV375 @ SV364 ) @ SV92 ) )
        = $true )
      | ( ( in @ SV364 @ SV292 )
        = $true )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1771]) ).

thf(1813,plain,
    ! [SV92: $i,SV292: $i,SV365: $i] :
      ( ( ( in @ SV365 @ SV292 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK14_D @ SV365 @ SV292 @ SV92 ) @ SV365 ) @ SV92 )
        = $true )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1772]) ).

thf(1814,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 )
          | ~ ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1773]) ).

thf(1815,plain,
    ! [SV327: $i,SV296: $i,SV376: $i] :
      ( ( ( ~ ( in @ SV376 @ SV296 )
          | ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV376 ) )
        = $true )
      | ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1774]) ).

thf(1816,plain,
    ! [SV297: $i,SV328: $i,SV377: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK36_D @ SV377 @ SV328 @ SV297 ) @ SV297 )
              | ~ ~ ( in @ SV377 @ ( sK36_D @ SV377 @ SV328 @ SV297 ) ) )
          | ( in @ SV377 @ SV328 ) )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1775]) ).

thf(1817,plain,
    ! [SV297: $i,SV328: $i,SV378: $i] :
      ( ( ( ~ ( in @ SV378 @ SV328 )
          | ! [SY689: $i] :
              ( ~ ( in @ SY689 @ SV297 )
              | ( in @ SV378 @ SY689 ) ) )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1776]) ).

thf(1818,plain,
    ! [SV94: $i,SV256: $i,SV275: $i] :
      ( ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV256 )
        = $false )
      | ( ( in @ ( sK17_D @ SV275 @ SV256 @ SV94 ) @ SV275 )
        = $true )
      | ( ( SV275
          = ( set_difference @ SV94 @ SV256 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1779]) ).

thf(1819,plain,
    ! [SV276: $i,SV257: $i,SV94: $i,SV356: $i] :
      ( ( ( in @ SV356 @ SV94 )
        = $false )
      | ( ( in @ SV356 @ SV257 )
        = $true )
      | ( ( in @ SV356 @ SV276 )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1780]) ).

thf(1820,plain,
    ! [SV257: $i,SV94: $i,SV276: $i,SV379: $i] :
      ( ( ( ~ ( in @ SV379 @ SV276 )
          | ( in @ SV379 @ SV94 ) )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1781]) ).

thf(1821,plain,
    ! [SV94: $i,SV257: $i,SV276: $i,SV380: $i] :
      ( ( ( ~ ( in @ SV380 @ SV276 )
          | ~ ( in @ SV380 @ SV257 ) )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1782]) ).

thf(1822,plain,
    ! [SV278: $i,SV78: $i,SV367: $i,SV358: $i] :
      ( ( ( in @ ( ordered_pair @ SV358 @ SV367 ) @ SV78 )
        = $false )
      | ( ( in @ SV358 @ SV278 )
        = $true )
      | ( ( SV278
          = ( relation_dom @ SV78 ) )
        = $false )
      | ( ( relation @ SV78 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1784]) ).

thf(1823,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ( sK32_D @ SV262 @ SV216 @ SV79 )
          = SV79 )
        = $false )
      | ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
        = $false )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1786]) ).

thf(1824,plain,
    ! [SV79: $i,SV216: $i,SV262: $i] :
      ( ( ( ( sK32_D @ SV262 @ SV216 @ SV79 )
          = SV216 )
        = $false )
      | ( ( in @ ( sK32_D @ SV262 @ SV216 @ SV79 ) @ SV262 )
        = $false )
      | ( ( SV262
          = ( unordered_pair @ SV79 @ SV216 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1787]) ).

thf(1825,plain,
    ! [SV217: $i,SV263: $i,SV79: $i,SV368: $i] :
      ( ( ( ( SV368 != SV79 ) )
        = $true )
      | ( ( in @ SV368 @ SV263 )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1789]) ).

thf(1826,plain,
    ! [SV79: $i,SV263: $i,SV217: $i,SV369: $i] :
      ( ( ( ( SV369 != SV217 ) )
        = $true )
      | ( ( in @ SV369 @ SV263 )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1790]) ).

thf(1827,plain,
    ! [SV80: $i,SV337: $i,SV349: $i] :
      ( ( ( subset @ SV349 @ SV337 )
        = $false )
      | ( ( in @ SV337 @ ( sK9_B @ SV80 ) )
        = $false )
      | ( ( in @ SV349 @ ( sK9_B @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1791]) ).

thf(1828,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV82 )
        = $false )
      | ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
        = $false )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1792]) ).

thf(1829,plain,
    ! [SV82: $i,SV221: $i,SV264: $i] :
      ( ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV221 )
        = $false )
      | ( ( in @ ( sK31_D @ SV264 @ SV221 @ SV82 ) @ SV264 )
        = $false )
      | ( ( SV264
          = ( set_union2 @ SV82 @ SV221 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1793]) ).

thf(1830,plain,
    ! [SV222: $i,SV265: $i,SV82: $i,SV370: $i] :
      ( ( ( ~ ( in @ SV370 @ SV82 ) )
        = $true )
      | ( ( in @ SV370 @ SV265 )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1795]) ).

thf(1831,plain,
    ! [SV82: $i,SV265: $i,SV222: $i,SV371: $i] :
      ( ( ( ~ ( in @ SV371 @ SV222 ) )
        = $true )
      | ( ( in @ SV371 @ SV265 )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1796]) ).

thf(1832,plain,
    ! [SV360: $i,SV84: $i,SV306: $i] :
      ( ( ( in @ SV306 @ ( sK10_B @ SV84 ) )
        = $false )
      | ( ( in @ SV360 @ ( sK11_SY302 @ SV306 @ SV84 ) )
        = $true )
      | ( ( subset @ SV360 @ SV306 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1797]) ).

thf(1833,plain,
    ! [SV84: $i,SV341: $i,SV351: $i] :
      ( ( ( subset @ SV351 @ SV341 )
        = $false )
      | ( ( in @ SV341 @ ( sK10_B @ SV84 ) )
        = $false )
      | ( ( in @ SV351 @ ( sK10_B @ SV84 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1798]) ).

thf(1834,plain,
    ! [SV228: $i,SV343: $i,SV186: $i,SV361: $i] :
      ( ( ( in @ SV361 @ SV186 )
        = $false )
      | ( ( in @ SV343 @ SV361 )
        = $false )
      | ( ( in @ SV343 @ SV228 )
        = $true )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1800]) ).

thf(1835,plain,
    ! [SV186: $i,SV228: $i,SV344: $i] :
      ( ( ( in @ SV344 @ ( sK18_D @ SV344 @ SV228 @ SV186 ) )
        = $true )
      | ( ( in @ SV344 @ SV228 )
        = $false )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1801]) ).

thf(1836,plain,
    ! [SV186: $i,SV228: $i,SV344: $i] :
      ( ( ( in @ ( sK18_D @ SV344 @ SV228 @ SV186 ) @ SV186 )
        = $true )
      | ( ( in @ SV344 @ SV228 )
        = $false )
      | ( ( SV228
          = ( union @ SV186 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1802]) ).

thf(1837,plain,
    ! [SV270: $i,SV87: $i,SV236: $i,SV352: $i] :
      ( ( ( in @ SV352 @ SV236 )
        = $false )
      | ( ( in @ SV352 @ SV87 )
        = $false )
      | ( ( in @ SV352 @ SV270 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1804]) ).

thf(1838,plain,
    ! [SV236: $i,SV87: $i,SV270: $i,SV372: $i] :
      ( ( ( ~ ( in @ SV372 @ SV270 ) )
        = $true )
      | ( ( in @ SV372 @ SV87 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1805]) ).

thf(1839,plain,
    ! [SV87: $i,SV236: $i,SV270: $i,SV373: $i] :
      ( ( ( ~ ( in @ SV373 @ SV270 ) )
        = $true )
      | ( ( in @ SV373 @ SV236 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1806]) ).

thf(1840,plain,
    ! [SV272: $i,SV244: $i,SV362: $i,SV91: $i,SV353: $i] :
      ( ( ( in @ SV353 @ SV91 )
        = $false )
      | ( ( ~ ( in @ SV362 @ SV244 ) )
        = $true )
      | ( ( ( ( sK28_D @ SV272 @ SV244 @ SV91 )
           != ( ordered_pair @ SV353 @ SV362 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1807]) ).

thf(1841,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1808]) ).

thf(1842,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ~ ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1808]) ).

thf(1843,plain,
    ! [SV273: $i,SV354: $i,SV245: $i,SV374: $i,SV91: $i,SV366: $i] :
      ( ( ( ~ ( in @ SV366 @ SV91 )
          | ~ ( in @ SV374 @ SV245 ) )
        = $true )
      | ( ( ( SV354
           != ( ordered_pair @ SV366 @ SV374 ) ) )
        = $true )
      | ( ( in @ SV354 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1809]) ).

thf(1844,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV91 )
                | ~ ( in @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV245 ) ) )
        = $false )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1810]) ).

thf(1845,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( ( SV355
           != ( ordered_pair @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) ) ) )
        = $false )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1810]) ).

thf(1846,plain,
    ! [SV292: $i,SV92: $i,SV364: $i,SV375: $i] :
      ( ( ( in @ ( ordered_pair @ SV375 @ SV364 ) @ SV92 )
        = $false )
      | ( ( in @ SV364 @ SV292 )
        = $true )
      | ( ( SV292
          = ( relation_rng @ SV92 ) )
        = $false )
      | ( ( relation @ SV92 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1812]) ).

thf(1847,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 ) )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1814]) ).

thf(1848,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1814]) ).

thf(1849,plain,
    ! [SV327: $i,SV296: $i,SV376: $i] :
      ( ( ( ~ ( in @ SV376 @ SV296 ) )
        = $true )
      | ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV376 )
        = $true )
      | ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1815]) ).

thf(1850,plain,
    ! [SV297: $i,SV328: $i,SV377: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK36_D @ SV377 @ SV328 @ SV297 ) @ SV297 )
              | ~ ~ ( in @ SV377 @ ( sK36_D @ SV377 @ SV328 @ SV297 ) ) ) )
        = $true )
      | ( ( in @ SV377 @ SV328 )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1816]) ).

thf(1851,plain,
    ! [SV297: $i,SV328: $i,SV378: $i] :
      ( ( ( ~ ( in @ SV378 @ SV328 ) )
        = $true )
      | ( ( ! [SY689: $i] :
              ( ~ ( in @ SY689 @ SV297 )
              | ( in @ SV378 @ SY689 ) ) )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1817]) ).

thf(1852,plain,
    ! [SV257: $i,SV94: $i,SV276: $i,SV379: $i] :
      ( ( ( ~ ( in @ SV379 @ SV276 ) )
        = $true )
      | ( ( in @ SV379 @ SV94 )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1820]) ).

thf(1853,plain,
    ! [SV94: $i,SV257: $i,SV276: $i,SV380: $i] :
      ( ( ( ~ ( in @ SV380 @ SV276 ) )
        = $true )
      | ( ( ~ ( in @ SV380 @ SV257 ) )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1821]) ).

thf(1854,plain,
    ! [SV217: $i,SV263: $i,SV79: $i,SV368: $i] :
      ( ( ( SV368 = SV79 )
        = $false )
      | ( ( in @ SV368 @ SV263 )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1825]) ).

thf(1855,plain,
    ! [SV79: $i,SV263: $i,SV217: $i,SV369: $i] :
      ( ( ( SV369 = SV217 )
        = $false )
      | ( ( in @ SV369 @ SV263 )
        = $true )
      | ( ( SV263
          = ( unordered_pair @ SV79 @ SV217 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1826]) ).

thf(1856,plain,
    ! [SV222: $i,SV265: $i,SV82: $i,SV370: $i] :
      ( ( ( in @ SV370 @ SV82 )
        = $false )
      | ( ( in @ SV370 @ SV265 )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1830]) ).

thf(1857,plain,
    ! [SV82: $i,SV265: $i,SV222: $i,SV371: $i] :
      ( ( ( in @ SV371 @ SV222 )
        = $false )
      | ( ( in @ SV371 @ SV265 )
        = $true )
      | ( ( SV265
          = ( set_union2 @ SV82 @ SV222 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1831]) ).

thf(1858,plain,
    ! [SV236: $i,SV87: $i,SV270: $i,SV372: $i] :
      ( ( ( in @ SV372 @ SV270 )
        = $false )
      | ( ( in @ SV372 @ SV87 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1838]) ).

thf(1859,plain,
    ! [SV87: $i,SV236: $i,SV270: $i,SV373: $i] :
      ( ( ( in @ SV373 @ SV270 )
        = $false )
      | ( ( in @ SV373 @ SV236 )
        = $true )
      | ( ( SV270
          = ( set_intersection2 @ SV87 @ SV236 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1839]) ).

thf(1860,plain,
    ! [SV272: $i,SV91: $i,SV353: $i,SV244: $i,SV362: $i] :
      ( ( ( in @ SV362 @ SV244 )
        = $false )
      | ( ( in @ SV353 @ SV91 )
        = $false )
      | ( ( ( ( sK28_D @ SV272 @ SV244 @ SV91 )
           != ( ordered_pair @ SV353 @ SV362 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1840]) ).

thf(1861,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( in @ ( sK29_SY316 @ SV272 @ SV244 @ SV91 ) @ SV91 )
        = $true )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1841]) ).

thf(1862,plain,
    ! [SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( in @ ( sK30_SY318 @ SV272 @ SV244 @ SV91 ) @ SV244 )
        = $true )
      | ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1842]) ).

thf(1863,plain,
    ! [SV273: $i,SV354: $i,SV245: $i,SV374: $i,SV91: $i,SV366: $i] :
      ( ( ( ~ ( in @ SV366 @ SV91 ) )
        = $true )
      | ( ( ~ ( in @ SV374 @ SV245 ) )
        = $true )
      | ( ( ( SV354
           != ( ordered_pair @ SV366 @ SV374 ) ) )
        = $true )
      | ( ( in @ SV354 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1843]) ).

thf(1864,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV91 )
              | ~ ( in @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV245 ) ) )
        = $true )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1844]) ).

thf(1865,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( SV355
          = ( ordered_pair @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) ) )
        = $true )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1845]) ).

thf(1866,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1847]) ).

thf(1867,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1848]) ).

thf(1868,plain,
    ! [SV327: $i,SV296: $i,SV376: $i] :
      ( ( ( in @ SV376 @ SV296 )
        = $false )
      | ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV376 )
        = $true )
      | ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1849]) ).

thf(1869,plain,
    ! [SV297: $i,SV328: $i,SV377: $i] :
      ( ( ( ~ ( in @ ( sK36_D @ SV377 @ SV328 @ SV297 ) @ SV297 )
          | ~ ~ ( in @ SV377 @ ( sK36_D @ SV377 @ SV328 @ SV297 ) ) )
        = $false )
      | ( ( in @ SV377 @ SV328 )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1850]) ).

thf(1870,plain,
    ! [SV297: $i,SV328: $i,SV378: $i] :
      ( ( ( in @ SV378 @ SV328 )
        = $false )
      | ( ( ! [SY689: $i] :
              ( ~ ( in @ SY689 @ SV297 )
              | ( in @ SV378 @ SY689 ) ) )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1851]) ).

thf(1871,plain,
    ! [SV257: $i,SV94: $i,SV276: $i,SV379: $i] :
      ( ( ( in @ SV379 @ SV276 )
        = $false )
      | ( ( in @ SV379 @ SV94 )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1852]) ).

thf(1872,plain,
    ! [SV94: $i,SV257: $i,SV276: $i,SV380: $i] :
      ( ( ( in @ SV380 @ SV276 )
        = $false )
      | ( ( ~ ( in @ SV380 @ SV257 ) )
        = $true )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1853]) ).

thf(1873,plain,
    ! [SV362: $i,SV353: $i,SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( ( sK28_D @ SV272 @ SV244 @ SV91 )
          = ( ordered_pair @ SV353 @ SV362 ) )
        = $false )
      | ( ( in @ SV353 @ SV91 )
        = $false )
      | ( ( in @ SV362 @ SV244 )
        = $false )
      | ( ( ~ ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 ) )
        = $true )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1860]) ).

thf(1874,plain,
    ! [SV273: $i,SV354: $i,SV245: $i,SV374: $i,SV91: $i,SV366: $i] :
      ( ( ( in @ SV366 @ SV91 )
        = $false )
      | ( ( ~ ( in @ SV374 @ SV245 ) )
        = $true )
      | ( ( ( SV354
           != ( ordered_pair @ SV366 @ SV374 ) ) )
        = $true )
      | ( ( in @ SV354 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1863]) ).

thf(1875,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( ~ ( in @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV91 )
          | ~ ( in @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
        = $false )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1864]) ).

thf(1876,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 )
        = $false )
      | ( ( in @ ( sK38_SY319 @ SV327 @ SV296 ) @ SV296 )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1866]) ).

thf(1877,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 ) )
        = $true )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1867]) ).

thf(1878,plain,
    ! [SV297: $i,SV328: $i,SV377: $i] :
      ( ( ( ~ ( in @ ( sK36_D @ SV377 @ SV328 @ SV297 ) @ SV297 ) )
        = $false )
      | ( ( in @ SV377 @ SV328 )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1869]) ).

thf(1879,plain,
    ! [SV297: $i,SV328: $i,SV377: $i] :
      ( ( ( ~ ~ ( in @ SV377 @ ( sK36_D @ SV377 @ SV328 @ SV297 ) ) )
        = $false )
      | ( ( in @ SV377 @ SV328 )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1869]) ).

thf(1880,plain,
    ! [SV328: $i,SV378: $i,SV297: $i,SV381: $i] :
      ( ( ( ~ ( in @ SV381 @ SV297 )
          | ( in @ SV378 @ SV381 ) )
        = $true )
      | ( ( in @ SV378 @ SV328 )
        = $false )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1870]) ).

thf(1881,plain,
    ! [SV94: $i,SV276: $i,SV257: $i,SV380: $i] :
      ( ( ( in @ SV380 @ SV257 )
        = $false )
      | ( ( in @ SV380 @ SV276 )
        = $false )
      | ( ( SV276
          = ( set_difference @ SV94 @ SV257 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1872]) ).

thf(1882,plain,
    ! [SV353: $i,SV362: $i,SV91: $i,SV244: $i,SV272: $i] :
      ( ( ( in @ ( sK28_D @ SV272 @ SV244 @ SV91 ) @ SV272 )
        = $false )
      | ( ( in @ SV362 @ SV244 )
        = $false )
      | ( ( in @ SV353 @ SV91 )
        = $false )
      | ( ( ( sK28_D @ SV272 @ SV244 @ SV91 )
          = ( ordered_pair @ SV353 @ SV362 ) )
        = $false )
      | ( ( SV272
          = ( cartesian_product2 @ SV91 @ SV244 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1873]) ).

thf(1883,plain,
    ! [SV273: $i,SV354: $i,SV91: $i,SV366: $i,SV245: $i,SV374: $i] :
      ( ( ( in @ SV374 @ SV245 )
        = $false )
      | ( ( in @ SV366 @ SV91 )
        = $false )
      | ( ( ( SV354
           != ( ordered_pair @ SV366 @ SV374 ) ) )
        = $true )
      | ( ( in @ SV354 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1874]) ).

thf(1884,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( ~ ( in @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV91 ) )
        = $false )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1875]) ).

thf(1885,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( ~ ( in @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV245 ) )
        = $false )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1875]) ).

thf(1886,plain,
    ! [SV296: $i,SV327: $i] :
      ( ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ SV327 )
        = $false )
      | ( ( in @ ( sK37_C @ SV327 @ SV296 ) @ ( sK38_SY319 @ SV327 @ SV296 ) )
        = $false )
      | ( ( SV327
          = ( set_meet @ SV296 ) )
        = $true )
      | ( ( SV296 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1877]) ).

thf(1887,plain,
    ! [SV297: $i,SV328: $i,SV377: $i] :
      ( ( ( in @ ( sK36_D @ SV377 @ SV328 @ SV297 ) @ SV297 )
        = $true )
      | ( ( in @ SV377 @ SV328 )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1878]) ).

thf(1888,plain,
    ! [SV297: $i,SV328: $i,SV377: $i] :
      ( ( ( ~ ( in @ SV377 @ ( sK36_D @ SV377 @ SV328 @ SV297 ) ) )
        = $true )
      | ( ( in @ SV377 @ SV328 )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1879]) ).

thf(1889,plain,
    ! [SV328: $i,SV378: $i,SV297: $i,SV381: $i] :
      ( ( ( ~ ( in @ SV381 @ SV297 ) )
        = $true )
      | ( ( in @ SV378 @ SV381 )
        = $true )
      | ( ( in @ SV378 @ SV328 )
        = $false )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1880]) ).

thf(1890,plain,
    ! [SV273: $i,SV245: $i,SV91: $i,SV374: $i,SV366: $i,SV354: $i] :
      ( ( ( SV354
          = ( ordered_pair @ SV366 @ SV374 ) )
        = $false )
      | ( ( in @ SV366 @ SV91 )
        = $false )
      | ( ( in @ SV374 @ SV245 )
        = $false )
      | ( ( in @ SV354 @ SV273 )
        = $true )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1883]) ).

thf(1891,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( in @ ( sK26_E @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV91 )
        = $true )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1884]) ).

thf(1892,plain,
    ! [SV91: $i,SV245: $i,SV273: $i,SV355: $i] :
      ( ( ( in @ ( sK27_SY313 @ SV355 @ SV273 @ SV245 @ SV91 ) @ SV245 )
        = $true )
      | ( ( in @ SV355 @ SV273 )
        = $false )
      | ( ( SV273
          = ( cartesian_product2 @ SV91 @ SV245 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1885]) ).

thf(1893,plain,
    ! [SV297: $i,SV328: $i,SV377: $i] :
      ( ( ( in @ SV377 @ ( sK36_D @ SV377 @ SV328 @ SV297 ) )
        = $false )
      | ( ( in @ SV377 @ SV328 )
        = $true )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1888]) ).

thf(1894,plain,
    ! [SV328: $i,SV378: $i,SV297: $i,SV381: $i] :
      ( ( ( in @ SV381 @ SV297 )
        = $false )
      | ( ( in @ SV378 @ SV381 )
        = $true )
      | ( ( in @ SV378 @ SV328 )
        = $false )
      | ( ( SV328
          = ( set_meet @ SV297 ) )
        = $false )
      | ( ( SV297 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1889]) ).

thf(1895,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[426,1894,1893,1892,1891,1890,1887,1886,1882,1881,1876,1871,1868,1865,1862,1861,1859,1858,1857,1856,1855,1854,1846,1837,1836,1835,1834,1833,1832,1829,1828,1827,1824,1823,1822,1819,1818,1813,1811,1803,1799,1794,1788,1785,1783,1778,1777,1767,1761,1760,1733,1732,1711,1710,1707,1705,1704,1689,1688,1680,1679,1678,1674,1673,1670,1668,1667,1649,1648,1645,1642,1636,1631,1629,1628,1612,1605,1604,1599,1598,1584,1567,1556,1550,1549,1538,1537,1532,1531,1528,1519,1511,1509,1508,1503,1501,1490,1489,1462,1456,1449,1448,1431,1419,1418,1415,1398,1386,1379,1373,1372,1364,1350,1347,1343,1342,1340,1312,1311,1310,1309,1300,1299,1294,1291,1290,1289,1288,1268,1267,1258,1257,1256,1253,1252,1251,1250,1247,1246,1244,1243,1242,1207,1200,1194,1193,1154,1146,1141,1091,1060,1049,1048,1045,1041,1040,1034,1032,1031,1029,965,964,951,949,948,947,946,945,944,943,941,940,939,938,934,928,926,922,915,913,912,911,908,878,877,833,824,806,792,786,708,707,700,699,698,694,688,685,683,682,676,671,665,615,611,610,609,608,606,602,599,598,592,586,580,575,562,495,494,478,468]) ).

thf(1896,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[372]) ).

thf(1897,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[371]) ).

thf(1898,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[370]) ).

thf(1899,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)],[369]) ).

thf(1900,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[368]) ).

thf(1901,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[367]) ).

thf(1902,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[366]) ).

thf(1903,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK41_C @ B @ A ) @ A )
            & ~ ( in @ ( sK41_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[365]) ).

thf(1904,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[364]) ).

thf(1905,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ! [D: $i] :
                  ( ( ordered_pair @ A @ B )
                 != ( ordered_pair @ C @ D ) )
              | ( A = C ) )
          & ! [C: $i,D: $i] :
              ( ( ( ordered_pair @ A @ B )
               != ( ordered_pair @ C @ D ) )
              | ( B = D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[363]) ).

thf(1906,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[362]) ).

thf(1907,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ C )
              | ( subset @ ( unordered_pair @ A @ B ) @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ A @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[361]) ).

thf(1908,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK40_C @ B @ A ) @ A )
            & ( in @ ( sK40_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[360]) ).

thf(1909,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[359]) ).

thf(1910,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK39_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)],[358]) ).

thf(1911,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)],[357]) ).

thf(1912,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[356]) ).

thf(1913,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[355]) ).

thf(1914,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK38_SY319 @ B @ A ) @ A )
                    & ~ ( in @ ( sK37_C @ B @ A ) @ ( sK38_SY319 @ B @ A ) ) )
                  | ~ ( in @ ( sK37_C @ B @ A ) @ B ) )
                & ( ! [SY320: $i] :
                      ( ~ ( in @ SY320 @ A )
                      | ( in @ ( sK37_C @ B @ A ) @ SY320 ) )
                  | ( in @ ( sK37_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK36_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK36_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)],[354]) ).

thf(1915,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK35_C @ B @ A )
               != A )
              | ~ ( in @ ( sK35_C @ B @ A ) @ B ) )
            & ( ( ( sK35_C @ B @ A )
                = A )
              | ( in @ ( sK35_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)],[353]) ).

thf(1916,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK34_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[352]) ).

thf(1917,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK33_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK33_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK33_C @ B @ A ) @ B )
              | ( subset @ ( sK33_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)],[351]) ).

thf(1918,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)],[350]) ).

thf(1919,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK32_D @ C @ B @ A ) @ C )
                  | ( ( sK32_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK32_D @ C @ B @ A ) @ C )
                  | ( ( sK32_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK32_D @ C @ B @ A ) @ C )
                  | ( ( sK32_D @ C @ B @ A )
                    = A )
                  | ( ( sK32_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)],[349]) ).

thf(1920,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK31_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK31_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK31_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK31_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK31_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK31_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK31_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)],[348]) ).

thf(1921,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY314: $i,SY315: $i] :
                      ( ~ ( in @ SY314 @ A )
                      | ~ ( in @ SY315 @ B )
                      | ( ( sK28_D @ C @ B @ A )
                       != ( ordered_pair @ SY314 @ SY315 ) ) )
                  | ~ ( in @ ( sK28_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK29_SY316 @ C @ B @ A ) @ A )
                    & ( in @ ( sK30_SY318 @ C @ B @ A ) @ B )
                    & ( ( sK28_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK29_SY316 @ C @ B @ A ) @ ( sK30_SY318 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK28_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK26_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK27_SY313 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK26_E @ D @ C @ B @ A ) @ ( sK27_SY313 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[347]) ).

thf(1922,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK25_C @ B @ A ) @ A )
            & ~ ( in @ ( sK25_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)],[346]) ).

thf(1923,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK24_D @ C @ B @ A ) @ A )
                  | ~ ( 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 ) @ C ) )
                & ( ( in @ ( sK24_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK24_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)],[345]) ).

thf(1924,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY311: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK22_C @ B @ A ) @ SY311 ) @ A )
                    | ~ ( in @ ( sK22_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK22_C @ B @ A ) @ ( sK23_SY312 @ B @ A ) ) @ A )
                    | ( in @ ( sK22_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 @ ( sK21_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[344]) ).

thf(1925,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY309: $i] :
                  ( ~ ( in @ ( sK19_C @ B @ A ) @ SY309 )
                  | ~ ( in @ SY309 @ A ) )
              | ~ ( in @ ( sK19_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK19_C @ B @ A ) @ ( sK20_SY310 @ B @ A ) )
                & ( in @ ( sK20_SY310 @ B @ A ) @ A ) )
              | ( in @ ( sK19_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 @ ( sK18_D @ C @ B @ A ) )
                  & ( in @ ( sK18_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[343]) ).

thf(1926,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK17_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK17_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK17_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)],[342]) ).

thf(1927,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY307: $i] :
                        ~ ( in @ ( ordered_pair @ SY307 @ ( sK15_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK15_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK16_SY308 @ B @ A ) @ ( sK15_C @ B @ A ) ) @ A )
                    | ( in @ ( sK15_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 @ ( sK14_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[341]) ).

thf(1928,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[233]) ).

thf(1929,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(1930,plain,
    ( ( ( empty @ sK13_A )
      & ( relation @ sK13_A ) )
    = $true ),
    inference(copy,[status(thm)],[340]) ).

thf(1931,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[339]) ).

thf(1932,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[338]) ).

thf(1933,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK12_C @ B @ A ) @ A )
              | ~ ( in @ ( sK12_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK12_C @ B @ A ) @ A )
              | ( in @ ( sK12_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[337]) ).

thf(1934,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[336]) ).

thf(1935,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[335]) ).

thf(1936,plain,
    ( ( ! [A: $i] :
          ( ! [SY300: $i] :
              ( ~ ( subset @ SY300 @ ( sK10_B @ A ) )
              | ( are_equipotent @ SY300 @ ( sK10_B @ A ) )
              | ( in @ SY300 @ ( sK10_B @ A ) ) )
          & ! [SY301: $i] :
              ( ( ! [SY306: $i] :
                    ( ~ ( subset @ SY306 @ SY301 )
                    | ( in @ SY306 @ ( sK11_SY302 @ SY301 @ A ) ) )
                & ( in @ ( sK11_SY302 @ SY301 @ A ) @ ( sK10_B @ A ) ) )
              | ~ ( in @ SY301 @ ( sK10_B @ A ) ) )
          & ! [SY304: $i,SY305: $i] :
              ( ~ ( in @ SY304 @ ( sK10_B @ A ) )
              | ~ ( subset @ SY305 @ SY304 )
              | ( in @ SY305 @ ( sK10_B @ A ) ) )
          & ( in @ A @ ( sK10_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[334]) ).

thf(1937,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[333]) ).

thf(1938,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)],[332]) ).

thf(1939,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)],[331]) ).

thf(1940,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)],[330]) ).

thf(1941,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( A = D )
          | ( A = C )
          | ( ( unordered_pair @ A @ B )
           != ( unordered_pair @ C @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[329]) ).

thf(1942,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)],[328]) ).

thf(1943,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)],[327]) ).

thf(1944,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[326]) ).

thf(1945,plain,
    ( ( ! [A: $i] :
          ( ! [SY296: $i] :
              ( ~ ( subset @ SY296 @ ( sK9_B @ A ) )
              | ( are_equipotent @ SY296 @ ( sK9_B @ A ) )
              | ( in @ SY296 @ ( sK9_B @ A ) ) )
          & ! [SY297: $i] :
              ( ~ ( in @ SY297 @ ( sK9_B @ A ) )
              | ( in @ ( powerset @ SY297 ) @ ( sK9_B @ A ) ) )
          & ! [SY298: $i,SY299: $i] :
              ( ~ ( in @ SY298 @ ( sK9_B @ A ) )
              | ~ ( subset @ SY299 @ SY298 )
              | ( in @ SY299 @ ( sK9_B @ A ) ) )
          & ( in @ A @ ( sK9_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[325]) ).

thf(1946,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[215]) ).

thf(1947,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[324]) ).

thf(1948,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[323]) ).

thf(1949,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[212]) ).

thf(1950,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[322]) ).

thf(1951,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[321]) ).

thf(1952,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[209]) ).

thf(1953,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[320]) ).

thf(1954,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[207]) ).

thf(1955,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)],[319]) ).

thf(1956,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[205]) ).

thf(1957,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)],[318]) ).

thf(1958,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[317]) ).

thf(1959,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[202]) ).

thf(1960,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ A ) )
                | ~ ( disjoint @ B @ C )
                | ( subset @ B @ ( subset_complement @ A @ C ) ) )
            & ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ A ) )
                | ~ ( subset @ B @ ( subset_complement @ A @ C ) )
                | ( disjoint @ B @ C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[316]) ).

thf(1961,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[315]) ).

thf(1962,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( B = empty_set )
          | ( ( complements_of_subsets @ A @ B )
           != empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[314]) ).

thf(1963,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[198]) ).

thf(1964,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ~ ( element @ B @ ( powerset @ A ) )
              | ! [C: $i] :
                  ( ~ ( element @ C @ A )
                  | ( in @ C @ B )
                  | ( in @ C @ ( subset_complement @ A @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[313]) ).

thf(1965,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ C @ ( powerset @ A ) )
          | ~ ( in @ B @ ( subset_complement @ A @ C ) )
          | ~ ( in @ B @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[312]) ).

thf(1966,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[311]) ).

thf(1967,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[310]) ).

thf(1968,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[193]) ).

thf(1969,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[309]) ).

thf(1970,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[191]) ).

thf(1971,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)],[308]) ).

thf(1972,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[307]) ).

thf(1973,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[306]) ).

thf(1974,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[187]) ).

thf(1975,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[305]) ).

thf(1976,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[185]) ).

thf(1977,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[184]) ).

thf(1978,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[183]) ).

thf(1979,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)],[304]) ).

thf(1980,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( ( subset_complement @ A @ B )
            = ( set_difference @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[303]) ).

thf(1981,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)],[302]) ).

thf(1982,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)],[301]) ).

thf(1983,plain,
    ( ( ! [A: $i] : ( element @ ( cast_to_subset @ A ) @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[178]) ).

thf(1984,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( element @ ( subset_complement @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[300]) ).

thf(1985,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( element @ ( union_of_subsets @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[299]) ).

thf(1986,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( element @ ( meet_of_subsets @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[298]) ).

thf(1987,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ~ ( element @ C @ ( powerset @ A ) )
          | ( element @ ( subset_difference @ A @ B @ C ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[297]) ).

thf(1988,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( element @ ( complements_of_subsets @ A @ B ) @ ( powerset @ ( powerset @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[296]) ).

thf(1989,plain,
    ( ( ! [A: $i] : ( element @ ( sK8_B @ A ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[295]) ).

thf(1990,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[171]) ).

thf(1991,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(1992,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[169]) ).

thf(1993,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[294]) ).

thf(1994,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( unordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[167]) ).

thf(1995,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[293]) ).

thf(1996,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[292]) ).

thf(1997,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[291]) ).

thf(1998,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ( ( subset_complement @ A @ ( subset_complement @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[290]) ).

thf(1999,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ( complements_of_subsets @ A @ ( complements_of_subsets @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[289]) ).

thf(2000,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ( ( element @ ( sK7_B @ A ) @ ( powerset @ A ) )
            & ~ ( empty @ ( sK7_B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[288]) ).

thf(2001,plain,
    ( ( empty @ sK6_A )
    = $true ),
    inference(copy,[status(thm)],[287]) ).

thf(2002,plain,
    ( ( ! [A: $i] :
          ( ( element @ ( sK5_B @ A ) @ ( powerset @ A ) )
          & ( empty @ ( sK5_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[286]) ).

thf(2003,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[285]) ).

thf(2004,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ( union_of_subsets @ A @ B )
            = ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[284]) ).

thf(2005,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ( meet_of_subsets @ A @ B )
            = ( set_meet @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[283]) ).

thf(2006,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ~ ( element @ C @ ( powerset @ A ) )
          | ( ( subset_difference @ A @ B @ C )
            = ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[282]) ).

thf(2007,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[281]) ).

thf(2008,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[280]) ).

thf(2009,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[152]) ).

thf(2010,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[151]) ).

thf(2011,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[150]) ).

thf(2012,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)],[279]) ).

thf(2013,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[148]) ).

thf(2014,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[278]) ).

thf(2015,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[277]) ).

thf(2016,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[276]) ).

thf(2017,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY293 ) @ sK3_SY295 )
    = $true ),
    inference(copy,[status(thm)],[270]) ).

thf(2018,plain,
    ( ( relation @ sK3_SY295 )
    = $true ),
    inference(copy,[status(thm)],[269]) ).

thf(2019,plain,
    ( ( ~ ( in @ sK2_SY293 @ ( relation_rng @ sK3_SY295 ) ) )
    = $true ),
    inference(copy,[status(thm)],[275]) ).

thf(2020,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)],[1938]) ).

thf(2021,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK39_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)],[1910]) ).

thf(2022,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ! [SX3: $i,SX4: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX4 @ SX1 )
                              | ( ( sK28_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ SX3 @ SX4 ) ) )
                          | ~ ( in @ ( sK28_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ( in @ ( sK30_SY318 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                              | ( ( sK28_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ ( sK29_SY316 @ SX2 @ SX1 @ SX0 ) @ ( sK30_SY318 @ SX2 @ SX1 @ SX0 ) ) ) )
                          | ( in @ ( sK28_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) )
                  | ( SX2
                    = ( cartesian_product2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( cartesian_product2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ! [SX4: $i,SX5: $i] :
                                ( ~ ( in @ SX4 @ SX0 )
                                | ~ ( in @ SX5 @ SX1 )
                                | ( SX3
                                 != ( ordered_pair @ SX4 @ SX5 ) ) )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ( in @ ( sK27_SY313 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                                | ( SX3
                                 != ( ordered_pair @ ( sK26_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ ( sK27_SY313 @ SX3 @ SX2 @ SX1 @ SX0 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1921]) ).

thf(2023,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK22_C @ SX1 @ SX0 ) @ SX2 ) @ SX0 )
                            | ~ ( in @ ( sK22_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SX1 @ SX0 ) @ ( sK23_SY312 @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK22_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 @ ( sK21_D @ SX2 @ SX1 @ SX0 ) ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1924]) ).

thf(2024,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK10_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK10_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK10_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( ~ ! [SX2: $i] :
                                  ( ~ ( subset @ SX2 @ SX1 )
                                  | ( in @ SX2 @ ( sK11_SY302 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK11_SY302 @ SX1 @ SX0 ) @ ( sK10_B @ SX0 ) ) )
                        | ~ ( in @ SX1 @ ( sK10_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK10_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK10_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK10_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1936]) ).

thf(2025,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK41_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK41_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1903]) ).

thf(2026,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK9_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK9_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK9_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( in @ SX1 @ ( sK9_B @ SX0 ) )
                        | ( in @ ( powerset @ SX1 ) @ ( sK9_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK9_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK9_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK9_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1945]) ).

thf(2027,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1902]) ).

thf(2028,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( 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 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK24_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK24_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)],[1923]) ).

thf(2029,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)],[1957]) ).

thf(2030,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                                  | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                              | ~ ( ! [SX2: $i] :
                                      ( ~ ( in @ SX2 @ SX0 )
                                      | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                                  | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ~ ( ~ ! [SX2: $i] :
                                    ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                        | ~ ~ ( in @ SX2 @ ( sK36_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)],[1914]) ).

thf(2031,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)],[1918]) ).

thf(2032,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)],[1899]) ).

thf(2033,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)],[1982]) ).

thf(2034,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK17_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)],[1926]) ).

thf(2035,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1904]) ).

thf(2036,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)],[1942]) ).

thf(2037,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ SX2 @ ( sK15_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ~ ( in @ ( sK15_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SX1 @ SX0 ) @ ( sK15_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK15_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 @ ( sK14_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1927]) ).

thf(2038,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK34_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1916]) ).

thf(2039,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK35_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK35_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK35_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)],[1915]) ).

thf(2040,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ! [SX2: $i] :
                            ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX2 )
                            | ~ ( in @ SX2 @ SX0 ) )
                        | ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ ( sK20_SY310 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK20_SY310 @ SX1 @ SX0 ) @ SX0 ) )
                        | ( in @ ( sK19_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 @ ( sK18_D @ SX2 @ SX1 @ SX0 ) )
                              | ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1925]) ).

thf(2041,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)],[1940]) ).

thf(2042,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ( element @ ( sK5_B @ SX0 ) @ ( powerset @ SX0 ) )
            | ~ ( empty @ ( sK5_B @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2002]) ).

thf(2043,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)],[1911]) ).

thf(2044,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK31_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)],[1920]) ).

thf(2045,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)],[1971]) ).

thf(2046,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ~ ( element @ SX2 @ ( powerset @ SX0 ) )
                    | ~ ( disjoint @ SX1 @ SX2 )
                    | ( subset @ SX1 @ ( subset_complement @ SX0 @ SX2 ) ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( element @ SX2 @ ( powerset @ SX0 ) )
                    | ~ ( subset @ SX1 @ ( subset_complement @ SX0 @ SX2 ) )
                    | ( disjoint @ SX1 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1960]) ).

thf(2047,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)],[1979]) ).

thf(2048,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)],[2012]) ).

thf(2049,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)],[1955]) ).

thf(2050,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK32_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK32_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK32_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK32_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK32_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK32_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)],[1919]) ).

thf(2051,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)],[1981]) ).

thf(2052,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK40_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)],[1908]) ).

thf(2053,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK25_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)],[1922]) ).

thf(2054,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK33_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)],[1917]) ).

thf(2055,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i] :
                  ( ! [SX3: $i] :
                      ( ( ordered_pair @ SX0 @ SX1 )
                     != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX0 = SX2 ) )
            | ~ ! [SX2: $i,SX3: $i] :
                  ( ( ( ordered_pair @ SX0 @ SX1 )
                   != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX1 = SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1905]) ).

thf(2056,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ~ ( ~ ( element @ ( sK7_B @ SX0 ) @ ( powerset @ SX0 ) )
              | ~ ~ ( empty @ ( sK7_B @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2000]) ).

thf(2057,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)],[1906]) ).

thf(2058,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)],[1907]) ).

thf(2059,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1933]) ).

thf(2060,plain,
    ( ( ~ ( ~ ( empty @ sK13_A )
          | ~ ( relation @ sK13_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1930]) ).

thf(2061,plain,
    ! [SV382: $i] :
      ( ( ! [SY690: $i] :
            ( ~ ( in @ SV382 @ SY690 )
            | ( ( set_union2 @ ( singleton @ SV382 ) @ SY690 )
              = SY690 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1896]) ).

thf(2062,plain,
    ! [SV383: $i] :
      ( ( ! [SY691: $i] :
            ( ~ ( disjoint @ ( singleton @ SV383 ) @ SY691 )
            | ~ ( in @ SV383 @ SY691 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1897]) ).

thf(2063,plain,
    ! [SV384: $i] :
      ( ( ! [SY692: $i] :
            ( ( in @ SV384 @ SY692 )
            | ( disjoint @ ( singleton @ SV384 ) @ SY692 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1898]) ).

thf(2064,plain,
    ! [SV385: $i] :
      ( ( ! [SY693: $i] :
            ( ~ ( element @ SY693 @ ( powerset @ SV385 ) )
            | ! [SY694: $i] :
                ( ~ ( in @ SY694 @ SY693 )
                | ( in @ SY694 @ SV385 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1900]) ).

thf(2065,plain,
    ! [SV386: $i] :
      ( ( ! [SY695: $i] :
            ( ~ ( in @ SV386 @ SY695 )
            | ( subset @ SV386 @ ( union @ SY695 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1901]) ).

thf(2066,plain,
    ! [SV387: $i] :
      ( ( ! [SY696: $i] :
            ( ~ ( in @ SV387 @ SY696 )
            | ( ( set_union2 @ ( singleton @ SV387 ) @ SY696 )
              = SY696 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1909]) ).

thf(2067,plain,
    ! [SV388: $i] :
      ( ( ! [SY697: $i] :
            ( ~ ( in @ SV388 @ SY697 )
            | ( subset @ SV388 @ ( union @ SY697 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1912]) ).

thf(2068,plain,
    ! [SV389: $i] :
      ( ( ! [SY698: $i] :
            ( ~ ( in @ SV389 @ SY698 )
            | ~ ( in @ SY698 @ SV389 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1913]) ).

thf(2069,plain,
    ! [SV390: $i] :
      ( ( ! [SY699: $i] :
            ( ( ordered_pair @ SV390 @ SY699 )
            = ( unordered_pair @ ( unordered_pair @ SV390 @ SY699 ) @ ( singleton @ SV390 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1928]) ).

thf(2070,plain,
    ! [SV391: $i] :
      ( ( ! [SY700: $i] :
            ~ ( empty @ ( ordered_pair @ SV391 @ SY700 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1929]) ).

thf(2071,plain,
    ! [SV392: $i] :
      ( ( ! [SY701: $i] :
            ( ~ ( in @ SV392 @ SY701 )
            | ( element @ SV392 @ SY701 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1931]) ).

thf(2072,plain,
    ! [SV393: $i] :
      ( ( ! [SY702: $i] :
            ( ~ ( element @ SV393 @ SY702 )
            | ( empty @ SY702 )
            | ( in @ SV393 @ SY702 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1932]) ).

thf(2073,plain,
    ! [SV394: $i] :
      ( ( ! [SY703: $i,SY704: $i] :
            ( ~ ( element @ SY703 @ ( powerset @ SY704 ) )
            | ~ ( in @ SV394 @ SY703 )
            | ( element @ SV394 @ SY704 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1934]) ).

thf(2074,plain,
    ! [SV395: $i] :
      ( ( ! [SY705: $i] :
            ( ~ ( empty @ SY705 )
            | ~ ( in @ SV395 @ SY705 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1935]) ).

thf(2075,plain,
    ! [SV396: $i] :
      ( ( ( ( singleton @ SV396 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1937]) ).

thf(2076,plain,
    ! [SV397: $i] :
      ( ( ! [SY706: $i] :
            ( ~ ( subset @ SV397 @ SY706 )
            | ! [SY707: $i] :
                ( ( in @ SY707 @ SV397 )
                | ( subset @ SV397 @ ( set_difference @ SY706 @ ( singleton @ SY707 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1939]) ).

thf(2077,plain,
    ! [SV398: $i] :
      ( ( ! [SY708: $i,SY709: $i,SY710: $i] :
            ( ( SV398 = SY710 )
            | ( SV398 = SY709 )
            | ( ( unordered_pair @ SV398 @ SY708 )
             != ( unordered_pair @ SY709 @ SY710 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1941]) ).

thf(2078,plain,
    ! [SV399: $i] :
      ( ( ! [SY711: $i,SY712: $i,SY713: $i] :
            ( ~ ( subset @ SV399 @ SY711 )
            | ~ ( subset @ SY712 @ SY713 )
            | ( subset @ ( cartesian_product2 @ SV399 @ SY712 ) @ ( cartesian_product2 @ SY711 @ SY713 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1943]) ).

thf(2079,plain,
    ! [SV400: $i] :
      ( ( ! [SY714: $i] :
            ( ~ ( subset @ SV400 @ SY714 )
            | ( ( set_union2 @ SV400 @ SY714 )
              = SY714 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1944]) ).

thf(2080,plain,
    ! [SV401: $i] :
      ( ( ! [SY715: $i] : ( subset @ ( set_intersection2 @ SV401 @ SY715 ) @ SV401 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1946]) ).

thf(2081,plain,
    ! [SV402: $i] :
      ( ( ! [SY716: $i,SY717: $i] :
            ( ~ ( subset @ SV402 @ SY716 )
            | ~ ( subset @ SV402 @ SY717 )
            | ( subset @ SV402 @ ( set_intersection2 @ SY716 @ SY717 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1947]) ).

thf(2082,plain,
    ! [SV403: $i] :
      ( ( ! [SY718: $i,SY719: $i] :
            ( ~ ( subset @ SV403 @ SY718 )
            | ~ ( subset @ SY718 @ SY719 )
            | ( subset @ SV403 @ SY719 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1948]) ).

thf(2083,plain,
    ! [SV404: $i] :
      ( ( ! [SY720: $i] :
            ( ~ ( subset @ SV404 @ SY720 )
            | ! [SY721: $i] : ( subset @ ( set_intersection2 @ SV404 @ SY721 ) @ ( set_intersection2 @ SY720 @ SY721 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1950]) ).

thf(2084,plain,
    ! [SV405: $i] :
      ( ( ! [SY722: $i] :
            ( ~ ( subset @ SV405 @ SY722 )
            | ( ( set_intersection2 @ SV405 @ SY722 )
              = SV405 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1951]) ).

thf(2085,plain,
    ! [SV406: $i] :
      ( ( subset @ empty_set @ SV406 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1952]) ).

thf(2086,plain,
    ! [SV407: $i] :
      ( ( ! [SY723: $i] :
            ( ~ ( subset @ SV407 @ SY723 )
            | ! [SY724: $i] : ( subset @ ( set_difference @ SV407 @ SY724 ) @ ( set_difference @ SY723 @ SY724 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1953]) ).

thf(2087,plain,
    ! [SV408: $i] :
      ( ( ! [SY725: $i] : ( subset @ ( set_difference @ SV408 @ SY725 ) @ SV408 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1954]) ).

thf(2088,plain,
    ! [SV409: $i] :
      ( ( ! [SY726: $i] :
            ( ( set_union2 @ SV409 @ ( set_difference @ SY726 @ SV409 ) )
            = ( set_union2 @ SV409 @ SY726 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1956]) ).

thf(2089,plain,
    ! [SV410: $i] :
      ( ( ~ ( subset @ SV410 @ empty_set )
        | ( SV410 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1958]) ).

thf(2090,plain,
    ! [SV411: $i] :
      ( ( ! [SY727: $i] :
            ( ( set_difference @ ( set_union2 @ SV411 @ SY727 ) @ SY727 )
            = ( set_difference @ SV411 @ SY727 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1959]) ).

thf(2091,plain,
    ! [SV412: $i] :
      ( ( ! [SY728: $i] :
            ( ~ ( subset @ SV412 @ SY728 )
            | ( SY728
              = ( set_union2 @ SV412 @ ( set_difference @ SY728 @ SV412 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1961]) ).

thf(2092,plain,
    ! [SV413: $i] :
      ( ( ! [SY729: $i] :
            ( ~ ( element @ SY729 @ ( powerset @ ( powerset @ SV413 ) ) )
            | ( SY729 = empty_set )
            | ( ( complements_of_subsets @ SV413 @ SY729 )
             != empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1962]) ).

thf(2093,plain,
    ! [SV414: $i] :
      ( ( ! [SY730: $i] :
            ( ( set_difference @ SV414 @ ( set_difference @ SV414 @ SY730 ) )
            = ( set_intersection2 @ SV414 @ SY730 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1963]) ).

thf(2094,plain,
    ! [SV415: $i] :
      ( ( ( SV415 = empty_set )
        | ! [SY731: $i] :
            ( ~ ( element @ SY731 @ ( powerset @ SV415 ) )
            | ! [SY732: $i] :
                ( ~ ( element @ SY732 @ SV415 )
                | ( in @ SY732 @ SY731 )
                | ( in @ SY732 @ ( subset_complement @ SV415 @ SY731 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1964]) ).

thf(2095,plain,
    ! [SV416: $i] :
      ( ( ! [SY733: $i,SY734: $i] :
            ( ~ ( element @ SY734 @ ( powerset @ SV416 ) )
            | ~ ( in @ SY733 @ ( subset_complement @ SV416 @ SY734 ) )
            | ~ ( in @ SY733 @ SY734 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1965]) ).

thf(2096,plain,
    ! [SV417: $i] :
      ( ( ! [SY735: $i] :
            ( ~ ( proper_subset @ SY735 @ SV417 )
            | ~ ( subset @ SV417 @ SY735 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1966]) ).

thf(2097,plain,
    ! [SV418: $i] :
      ( ( ! [SY736: $i,SY737: $i] :
            ( ~ ( disjoint @ SY736 @ SY737 )
            | ~ ( subset @ SV418 @ SY736 )
            | ( disjoint @ SV418 @ SY737 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1967]) ).

thf(2098,plain,
    ! [SV419: $i] :
      ( ( ( unordered_pair @ SV419 @ SV419 )
        = ( singleton @ SV419 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1968]) ).

thf(2099,plain,
    ! [SV420: $i] :
      ( ( ! [SY738: $i] :
            ( ~ ( subset @ ( singleton @ SV420 ) @ ( singleton @ SY738 ) )
            | ( SV420 = SY738 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1969]) ).

thf(2100,plain,
    ! [SV421: $i] :
      ( ( ! [SY739: $i] : ( subset @ SV421 @ ( set_union2 @ SV421 @ SY739 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1970]) ).

thf(2101,plain,
    ! [SV422: $i] :
      ( ( ! [SY740: $i,SY741: $i] :
            ( ~ ( subset @ SV422 @ SY740 )
            | ~ ( subset @ SY741 @ SY740 )
            | ( subset @ ( set_union2 @ SV422 @ SY741 ) @ SY740 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1972]) ).

thf(2102,plain,
    ! [SV423: $i] :
      ( ( ! [SY742: $i] :
            ( ! [SY743: $i] :
                ( ( singleton @ SV423 )
               != ( unordered_pair @ SY742 @ SY743 ) )
            | ( SV423 = SY742 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1973]) ).

thf(2103,plain,
    ! [SV424: $i] :
      ( ( ( union @ ( powerset @ SV424 ) )
        = SV424 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1974]) ).

thf(2104,plain,
    ! [SV425: $i] :
      ( ( ! [SY744: $i,SY745: $i] :
            ( ( ( singleton @ SV425 )
             != ( unordered_pair @ SY744 @ SY745 ) )
            | ( SY744 = SY745 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1975]) ).

thf(2105,plain,
    ! [SV426: $i] :
      ( ( ! [SY746: $i] :
            ( ( unordered_pair @ SV426 @ SY746 )
            = ( unordered_pair @ SY746 @ SV426 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1976]) ).

thf(2106,plain,
    ! [SV427: $i] :
      ( ( ! [SY747: $i] :
            ( ( set_union2 @ SV427 @ SY747 )
            = ( set_union2 @ SY747 @ SV427 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1977]) ).

thf(2107,plain,
    ! [SV428: $i] :
      ( ( ! [SY748: $i] :
            ( ( set_intersection2 @ SV428 @ SY748 )
            = ( set_intersection2 @ SY748 @ SV428 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1978]) ).

thf(2108,plain,
    ! [SV429: $i] :
      ( ( ! [SY749: $i] :
            ( ~ ( element @ SY749 @ ( powerset @ SV429 ) )
            | ( ( subset_complement @ SV429 @ SY749 )
              = ( set_difference @ SV429 @ SY749 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1980]) ).

thf(2109,plain,
    ! [SV430: $i] :
      ( ( element @ ( cast_to_subset @ SV430 ) @ ( powerset @ SV430 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1983]) ).

thf(2110,plain,
    ! [SV431: $i] :
      ( ( ! [SY750: $i] :
            ( ~ ( element @ SY750 @ ( powerset @ SV431 ) )
            | ( element @ ( subset_complement @ SV431 @ SY750 ) @ ( powerset @ SV431 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1984]) ).

thf(2111,plain,
    ! [SV432: $i] :
      ( ( ! [SY751: $i] :
            ( ~ ( element @ SY751 @ ( powerset @ ( powerset @ SV432 ) ) )
            | ( element @ ( union_of_subsets @ SV432 @ SY751 ) @ ( powerset @ SV432 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1985]) ).

thf(2112,plain,
    ! [SV433: $i] :
      ( ( ! [SY752: $i] :
            ( ~ ( element @ SY752 @ ( powerset @ ( powerset @ SV433 ) ) )
            | ( element @ ( meet_of_subsets @ SV433 @ SY752 ) @ ( powerset @ SV433 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1986]) ).

thf(2113,plain,
    ! [SV434: $i] :
      ( ( ! [SY753: $i,SY754: $i] :
            ( ~ ( element @ SY753 @ ( powerset @ SV434 ) )
            | ~ ( element @ SY754 @ ( powerset @ SV434 ) )
            | ( element @ ( subset_difference @ SV434 @ SY753 @ SY754 ) @ ( powerset @ SV434 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1987]) ).

thf(2114,plain,
    ! [SV435: $i] :
      ( ( ! [SY755: $i] :
            ( ~ ( element @ SY755 @ ( powerset @ ( powerset @ SV435 ) ) )
            | ( element @ ( complements_of_subsets @ SV435 @ SY755 ) @ ( powerset @ ( powerset @ SV435 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1988]) ).

thf(2115,plain,
    ! [SV436: $i] :
      ( ( element @ ( sK8_B @ SV436 ) @ SV436 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1989]) ).

thf(2116,plain,
    ! [SV437: $i] :
      ( ( ~ ( empty @ ( powerset @ SV437 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1990]) ).

thf(2117,plain,
    ! [SV438: $i] :
      ( ( ~ ( empty @ ( singleton @ SV438 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1992]) ).

thf(2118,plain,
    ! [SV439: $i] :
      ( ( ( empty @ SV439 )
        | ! [SY756: $i] :
            ~ ( empty @ ( set_union2 @ SV439 @ SY756 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1993]) ).

thf(2119,plain,
    ! [SV440: $i] :
      ( ( ! [SY757: $i] :
            ~ ( empty @ ( unordered_pair @ SV440 @ SY757 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1994]) ).

thf(2120,plain,
    ! [SV441: $i] :
      ( ( ( empty @ SV441 )
        | ! [SY758: $i] :
            ~ ( empty @ ( set_union2 @ SY758 @ SV441 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1995]) ).

thf(2121,plain,
    ! [SV442: $i] :
      ( ( ( set_union2 @ SV442 @ SV442 )
        = SV442 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1996]) ).

thf(2122,plain,
    ! [SV443: $i] :
      ( ( ( set_intersection2 @ SV443 @ SV443 )
        = SV443 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1997]) ).

thf(2123,plain,
    ! [SV444: $i] :
      ( ( ! [SY759: $i] :
            ( ~ ( element @ SY759 @ ( powerset @ SV444 ) )
            | ( ( subset_complement @ SV444 @ ( subset_complement @ SV444 @ SY759 ) )
              = SY759 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1998]) ).

thf(2124,plain,
    ! [SV445: $i] :
      ( ( ! [SY760: $i] :
            ( ~ ( element @ SY760 @ ( powerset @ ( powerset @ SV445 ) ) )
            | ( ( complements_of_subsets @ SV445 @ ( complements_of_subsets @ SV445 @ SY760 ) )
              = SY760 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1999]) ).

thf(2125,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2003]) ).

thf(2126,plain,
    ! [SV446: $i] :
      ( ( ! [SY761: $i] :
            ( ~ ( element @ SY761 @ ( powerset @ ( powerset @ SV446 ) ) )
            | ( ( union_of_subsets @ SV446 @ SY761 )
              = ( union @ SY761 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2004]) ).

thf(2127,plain,
    ! [SV447: $i] :
      ( ( ! [SY762: $i] :
            ( ~ ( element @ SY762 @ ( powerset @ ( powerset @ SV447 ) ) )
            | ( ( meet_of_subsets @ SV447 @ SY762 )
              = ( set_meet @ SY762 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2005]) ).

thf(2128,plain,
    ! [SV448: $i] :
      ( ( ! [SY763: $i,SY764: $i] :
            ( ~ ( element @ SY763 @ ( powerset @ SV448 ) )
            | ~ ( element @ SY764 @ ( powerset @ SV448 ) )
            | ( ( subset_difference @ SV448 @ SY763 @ SY764 )
              = ( set_difference @ SY763 @ SY764 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2006]) ).

thf(2129,plain,
    ! [SV449: $i] :
      ( ( subset @ SV449 @ SV449 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2007]) ).

thf(2130,plain,
    ! [SV450: $i] :
      ( ( ! [SY765: $i] :
            ( ~ ( disjoint @ SV450 @ SY765 )
            | ( disjoint @ SY765 @ SV450 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2008]) ).

thf(2131,plain,
    ! [SV451: $i] :
      ( ( ( set_union2 @ SV451 @ empty_set )
        = SV451 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2009]) ).

thf(2132,plain,
    ! [SV452: $i] :
      ( ( ( set_intersection2 @ SV452 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2010]) ).

thf(2133,plain,
    ! [SV453: $i] :
      ( ( ( set_difference @ SV453 @ empty_set )
        = SV453 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2011]) ).

thf(2134,plain,
    ! [SV454: $i] :
      ( ( ( set_difference @ empty_set @ SV454 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2013]) ).

thf(2135,plain,
    ! [SV455: $i] :
      ( ( ! [SY766: $i,SY767: $i] :
            ( ~ ( element @ SY766 @ ( powerset @ SY767 ) )
            | ~ ( in @ SV455 @ SY766 )
            | ~ ( empty @ SY767 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2014]) ).

thf(2136,plain,
    ! [SV456: $i] :
      ( ( ~ ( empty @ SV456 )
        | ( SV456 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2015]) ).

thf(2137,plain,
    ! [SV457: $i] :
      ( ( ! [SY768: $i] :
            ( ( SV457 = SY768 )
            | ~ ( empty @ SV457 )
            | ~ ( empty @ SY768 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2016]) ).

thf(2138,plain,
    ( ( in @ sK2_SY293 @ ( relation_rng @ sK3_SY295 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2019]) ).

thf(2139,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)],[2020]) ).

thf(2140,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK39_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)],[2021]) ).

thf(2141,plain,
    ! [SV458: $i] :
      ( ( ~ ( ~ ! [SY769: $i,SY770: $i] :
                  ( ~ ( ~ ( ! [SY771: $i,SY772: $i] :
                              ( ~ ( in @ SY771 @ SV458 )
                              | ~ ( in @ SY772 @ SY769 )
                              | ( ( sK28_D @ SY770 @ SY769 @ SV458 )
                               != ( ordered_pair @ SY771 @ SY772 ) ) )
                          | ~ ( in @ ( sK28_D @ SY770 @ SY769 @ SV458 ) @ SY770 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY770 @ SY769 @ SV458 ) @ SV458 )
                                    | ~ ( in @ ( sK30_SY318 @ SY770 @ SY769 @ SV458 ) @ SY769 ) )
                              | ( ( sK28_D @ SY770 @ SY769 @ SV458 )
                               != ( ordered_pair @ ( sK29_SY316 @ SY770 @ SY769 @ SV458 ) @ ( sK30_SY318 @ SY770 @ SY769 @ SV458 ) ) ) )
                          | ( in @ ( sK28_D @ SY770 @ SY769 @ SV458 ) @ SY770 ) ) )
                  | ( SY770
                    = ( cartesian_product2 @ SV458 @ SY769 ) ) )
            | ~ ! [SY773: $i,SY774: $i] :
                  ( ( SY774
                   != ( cartesian_product2 @ SV458 @ SY773 ) )
                  | ~ ( ~ ! [SY775: $i] :
                            ( ! [SY776: $i,SY777: $i] :
                                ( ~ ( in @ SY776 @ SV458 )
                                | ~ ( in @ SY777 @ SY773 )
                                | ( SY775
                                 != ( ordered_pair @ SY776 @ SY777 ) ) )
                            | ( in @ SY775 @ SY774 ) )
                      | ~ ! [SY778: $i] :
                            ( ~ ( in @ SY778 @ SY774 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY778 @ SY774 @ SY773 @ SV458 ) @ SV458 )
                                      | ~ ( in @ ( sK27_SY313 @ SY778 @ SY774 @ SY773 @ SV458 ) @ SY773 ) )
                                | ( SY778
                                 != ( ordered_pair @ ( sK26_E @ SY778 @ SY774 @ SY773 @ SV458 ) @ ( sK27_SY313 @ SY778 @ SY774 @ SY773 @ SV458 ) ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2022]) ).

thf(2142,plain,
    ! [SV459: $i] :
      ( ( ~ ( relation @ SV459 )
        | ~ ( ~ ! [SY779: $i] :
                  ( ~ ( ~ ( ! [SY780: $i] :
                              ~ ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ SY780 ) @ SV459 )
                          | ~ ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ ( sK23_SY312 @ SY779 @ SV459 ) ) @ SV459 )
                          | ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) ) )
                  | ( SY779
                    = ( relation_dom @ SV459 ) ) )
            | ~ ! [SY781: $i] :
                  ( ( SY781
                   != ( relation_dom @ SV459 ) )
                  | ~ ( ~ ! [SY782: $i] :
                            ( ! [SY783: $i] :
                                ~ ( in @ ( ordered_pair @ SY782 @ SY783 ) @ SV459 )
                            | ( in @ SY782 @ SY781 ) )
                      | ~ ! [SY784: $i] :
                            ( ~ ( in @ SY784 @ SY781 )
                            | ( in @ ( ordered_pair @ SY784 @ ( sK21_D @ SY784 @ SY781 @ SV459 ) ) @ SV459 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2023]) ).

thf(2143,plain,
    ! [SV460: $i] :
      ( ( ~ ( ~ ! [SY785: $i] :
                  ( ~ ( subset @ SY785 @ ( sK10_B @ SV460 ) )
                  | ( are_equipotent @ SY785 @ ( sK10_B @ SV460 ) )
                  | ( in @ SY785 @ ( sK10_B @ SV460 ) ) )
            | ~ ~ ( ~ ! [SY786: $i] :
                        ( ~ ( ~ ! [SY787: $i] :
                                  ( ~ ( subset @ SY787 @ SY786 )
                                  | ( in @ SY787 @ ( sK11_SY302 @ SY786 @ SV460 ) ) )
                            | ~ ( in @ ( sK11_SY302 @ SY786 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
                        | ~ ( in @ SY786 @ ( sK10_B @ SV460 ) ) )
                  | ~ ~ ( ~ ! [SY788: $i,SY789: $i] :
                              ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
                              | ~ ( subset @ SY789 @ SY788 )
                              | ( in @ SY789 @ ( sK10_B @ SV460 ) ) )
                        | ~ ( in @ SV460 @ ( sK10_B @ SV460 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2024]) ).

thf(2144,plain,
    ! [SV461: $i] :
      ( ( ! [SY790: $i] :
            ( ~ ( ~ ( in @ ( sK41_C @ SY790 @ SV461 ) @ SV461 )
                | ~ ~ ( in @ ( sK41_C @ SY790 @ SV461 ) @ SY790 ) )
            | ( element @ SV461 @ ( powerset @ SY790 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2025]) ).

thf(2145,plain,
    ! [SV462: $i] :
      ( ( ~ ( ~ ! [SY791: $i] :
                  ( ~ ( subset @ SY791 @ ( sK9_B @ SV462 ) )
                  | ( are_equipotent @ SY791 @ ( sK9_B @ SV462 ) )
                  | ( in @ SY791 @ ( sK9_B @ SV462 ) ) )
            | ~ ~ ( ~ ! [SY792: $i] :
                        ( ~ ( in @ SY792 @ ( sK9_B @ SV462 ) )
                        | ( in @ ( powerset @ SY792 ) @ ( sK9_B @ SV462 ) ) )
                  | ~ ~ ( ~ ! [SY793: $i,SY794: $i] :
                              ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
                              | ~ ( subset @ SY794 @ SY793 )
                              | ( in @ SY794 @ ( sK9_B @ SV462 ) ) )
                        | ~ ( in @ SV462 @ ( sK9_B @ SV462 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2026]) ).

thf(2146,plain,
    ! [SV463: $i] :
      ( ( ! [SY795: $i] :
            ~ ( ~ ! [SY796: $i,SY797: $i] :
                    ( ~ ( in @ SV463 @ SY796 )
                    | ~ ( in @ SY795 @ SY797 )
                    | ( in @ ( ordered_pair @ SV463 @ SY795 ) @ ( cartesian_product2 @ SY796 @ SY797 ) ) )
              | ~ ~ ( ~ ! [SY798: $i] :
                          ( ! [SY799: $i] :
                              ~ ( in @ ( ordered_pair @ SV463 @ SY795 ) @ ( cartesian_product2 @ SY798 @ SY799 ) )
                          | ( in @ SV463 @ SY798 ) )
                    | ~ ! [SY800: $i,SY801: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV463 @ SY795 ) @ ( cartesian_product2 @ SY800 @ SY801 ) )
                          | ( in @ SY795 @ SY801 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2027]) ).

thf(2147,plain,
    ! [SV464: $i] :
      ( ( ~ ( ~ ! [SY802: $i,SY803: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SV464 )
                          | ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY802 )
                          | ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SV464 )
                                | ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) )
                            | ~ ( ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY802 )
                                | ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) ) ) )
                  | ( SY803
                    = ( set_intersection2 @ SV464 @ SY802 ) ) )
            | ~ ! [SY804: $i,SY805: $i] :
                  ( ( SY805
                   != ( set_intersection2 @ SV464 @ SY804 ) )
                  | ~ ( ~ ! [SY806: $i] :
                            ( ~ ( in @ SY806 @ SV464 )
                            | ~ ( in @ SY806 @ SY804 )
                            | ( in @ SY806 @ SY805 ) )
                      | ~ ~ ( ~ ! [SY807: $i] :
                                  ( ~ ( in @ SY807 @ SY805 )
                                  | ( in @ SY807 @ SV464 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY805 )
                                  | ( in @ SX3 @ SY804 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2028]) ).

thf(2148,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)],[2029]) ).

thf(2149,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK36_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)],[2030]) ).

thf(2150,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)],[2031]) ).

thf(2151,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)],[2032]) ).

thf(2152,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)],[2033]) ).

thf(2153,plain,
    ! [SV465: $i] :
      ( ( ~ ( ~ ! [SY809: $i,SY810: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SV465 )
                          | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY809 )
                          | ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SV465 )
                                | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) )
                            | ~ ( ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY809 )
                                | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) ) ) )
                  | ( SY810
                    = ( set_difference @ SV465 @ SY809 ) ) )
            | ~ ! [SY811: $i,SY812: $i] :
                  ( ( SY812
                   != ( set_difference @ SV465 @ SY811 ) )
                  | ~ ( ~ ! [SY813: $i] :
                            ( ~ ( in @ SY813 @ SV465 )
                            | ( in @ SY813 @ SY811 )
                            | ( in @ SY813 @ SY812 ) )
                      | ~ ~ ( ~ ! [SY814: $i] :
                                  ( ~ ( in @ SY814 @ SY812 )
                                  | ( in @ SY814 @ SV465 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY812 )
                                  | ~ ( in @ SX3 @ SY811 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2034]) ).

thf(2154,plain,
    ! [SV466: $i] :
      ( ( ! [SY816: $i] :
            ~ ( ~ ! [SY817: $i,SY818: $i] :
                    ( ~ ( in @ SV466 @ SY817 )
                    | ~ ( in @ SY816 @ SY818 )
                    | ( in @ ( ordered_pair @ SV466 @ SY816 ) @ ( cartesian_product2 @ SY817 @ SY818 ) ) )
              | ~ ~ ( ~ ! [SY819: $i] :
                          ( ! [SY820: $i] :
                              ~ ( in @ ( ordered_pair @ SV466 @ SY816 ) @ ( cartesian_product2 @ SY819 @ SY820 ) )
                          | ( in @ SV466 @ SY819 ) )
                    | ~ ! [SY821: $i,SY822: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV466 @ SY816 ) @ ( cartesian_product2 @ SY821 @ SY822 ) )
                          | ( in @ SY816 @ SY822 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2035]) ).

thf(2155,plain,
    ! [SV467: $i] :
      ( ( ~ ( ~ ! [SY823: $i] :
                  ( ~ ( subset @ SV467 @ SY823 )
                  | ! [SY824: $i] : ( subset @ ( cartesian_product2 @ SV467 @ SY824 ) @ ( cartesian_product2 @ SY823 @ SY824 ) ) )
            | ~ ! [SY825: $i] :
                  ( ~ ( subset @ SV467 @ SY825 )
                  | ! [SY826: $i] : ( subset @ ( cartesian_product2 @ SY826 @ SV467 ) @ ( cartesian_product2 @ SY826 @ SY825 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2036]) ).

thf(2156,plain,
    ! [SV468: $i] :
      ( ( ~ ( relation @ SV468 )
        | ~ ( ~ ! [SY827: $i] :
                  ( ~ ( ~ ( ! [SY828: $i] :
                              ~ ( in @ ( ordered_pair @ SY828 @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                          | ~ ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY827 @ SV468 ) @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                          | ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) ) )
                  | ( SY827
                    = ( relation_rng @ SV468 ) ) )
            | ~ ! [SY829: $i] :
                  ( ( SY829
                   != ( relation_rng @ SV468 ) )
                  | ~ ( ~ ! [SY830: $i] :
                            ( ! [SY831: $i] :
                                ~ ( in @ ( ordered_pair @ SY831 @ SY830 ) @ SV468 )
                            | ( in @ SY830 @ SY829 ) )
                      | ~ ! [SY832: $i] :
                            ( ~ ( in @ SY832 @ SY829 )
                            | ( in @ ( ordered_pair @ ( sK14_D @ SY832 @ SY829 @ SV468 ) @ SY832 ) @ SV468 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2037]) ).

thf(2157,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK34_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2038]) ).

thf(2158,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK35_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK35_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK35_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)],[2039]) ).

thf(2159,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ ( sK20_SY310 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK20_SY310 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK19_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 @ ( sK18_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2040]) ).

thf(2160,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)],[2041]) ).

thf(2161,plain,
    ! [SV469: $i] :
      ( ( ~ ( ~ ( element @ ( sK5_B @ SV469 ) @ ( powerset @ SV469 ) )
            | ~ ( empty @ ( sK5_B @ SV469 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2042]) ).

thf(2162,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)],[2043]) ).

thf(2163,plain,
    ! [SV470: $i] :
      ( ( ~ ( ~ ! [SY833: $i,SY834: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                                | ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SV470 ) )
                            | ~ ( ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                                | ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY833 ) ) )
                      | ~ ( ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                          | ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SV470 )
                          | ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY833 ) ) )
                  | ( SY834
                    = ( set_union2 @ SV470 @ SY833 ) ) )
            | ~ ! [SY835: $i,SY836: $i] :
                  ( ( SY836
                   != ( set_union2 @ SV470 @ SY835 ) )
                  | ~ ( ~ ! [SY837: $i] :
                            ( ~ ( in @ SY837 @ SY836 )
                            | ( in @ SY837 @ SV470 )
                            | ( in @ SY837 @ SY835 ) )
                      | ~ ~ ( ~ ! [SY838: $i] :
                                  ( ~ ( in @ SY838 @ SV470 )
                                  | ( in @ SY838 @ SY836 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY835 )
                                  | ( in @ SX3 @ SY836 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2044]) ).

thf(2164,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)],[2045]) ).

thf(2165,plain,
    ! [SV471: $i] :
      ( ( ! [SY840: $i] :
            ( ~ ( element @ SY840 @ ( powerset @ SV471 ) )
            | ~ ( ~ ! [SY841: $i] :
                      ( ~ ( element @ SY841 @ ( powerset @ SV471 ) )
                      | ~ ( disjoint @ SY840 @ SY841 )
                      | ( subset @ SY840 @ ( subset_complement @ SV471 @ SY841 ) ) )
                | ~ ! [SY842: $i] :
                      ( ~ ( element @ SY842 @ ( powerset @ SV471 ) )
                      | ~ ( subset @ SY840 @ ( subset_complement @ SV471 @ SY842 ) )
                      | ( disjoint @ SY840 @ SY842 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2046]) ).

thf(2166,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)],[2047]) ).

thf(2167,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)],[2048]) ).

thf(2168,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)],[2049]) ).

thf(2169,plain,
    ! [SV472: $i] :
      ( ( ~ ( ~ ! [SY843: $i,SY844: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                                | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                                 != SV472 ) )
                            | ~ ( ~ ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                                | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                                 != SY843 ) ) )
                      | ~ ( ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                          | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                            = SV472 )
                          | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                            = SY843 ) ) )
                  | ( SY844
                    = ( unordered_pair @ SV472 @ SY843 ) ) )
            | ~ ! [SY845: $i,SY846: $i] :
                  ( ( SY846
                   != ( unordered_pair @ SV472 @ SY845 ) )
                  | ~ ( ~ ! [SY847: $i] :
                            ( ~ ( in @ SY847 @ SY846 )
                            | ( SY847 = SV472 )
                            | ( SY847 = SY845 ) )
                      | ~ ~ ( ~ ! [SY848: $i] :
                                  ( ( SY848 != SV472 )
                                  | ( in @ SY848 @ SY846 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY845 )
                                  | ( in @ SX3 @ SY846 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2050]) ).

thf(2170,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)],[2051]) ).

thf(2171,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK40_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)],[2052]) ).

thf(2172,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK25_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)],[2053]) ).

thf(2173,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK33_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)],[2054]) ).

thf(2174,plain,
    ! [SV473: $i] :
      ( ( ! [SY850: $i] :
            ~ ( ~ ! [SY851: $i] :
                    ( ! [SY852: $i] :
                        ( ( ordered_pair @ SV473 @ SY850 )
                       != ( ordered_pair @ SY851 @ SY852 ) )
                    | ( SV473 = SY851 ) )
              | ~ ! [SY853: $i,SY854: $i] :
                    ( ( ( ordered_pair @ SV473 @ SY850 )
                     != ( ordered_pair @ SY853 @ SY854 ) )
                    | ( SY850 = SY854 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2055]) ).

thf(2175,plain,
    ! [SV474: $i] :
      ( ( ( empty @ SV474 )
        | ~ ( ~ ( element @ ( sK7_B @ SV474 ) @ ( powerset @ SV474 ) )
            | ~ ~ ( empty @ ( sK7_B @ SV474 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2056]) ).

thf(2176,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)],[2057]) ).

thf(2177,plain,
    ! [SV475: $i] :
      ( ( ~ ( ~ ! [SY855: $i,SY856: $i] :
                  ( ~ ( in @ SV475 @ SY856 )
                  | ~ ( in @ SY855 @ SY856 )
                  | ( subset @ ( unordered_pair @ SV475 @ SY855 ) @ SY856 ) )
            | ~ ~ ( ~ ! [SY857: $i,SY858: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV475 @ SY857 ) @ SY858 )
                        | ( in @ SV475 @ SY858 ) )
                  | ~ ! [SY859: $i,SY860: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV475 @ SY859 ) @ SY860 )
                        | ( in @ SY859 @ SY860 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2058]) ).

thf(2178,plain,
    ! [SV476: $i] :
      ( ( ! [SY861: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_C @ SY861 @ SV476 ) @ SV476 )
                    | ~ ( in @ ( sK12_C @ SY861 @ SV476 ) @ SY861 ) )
                | ~ ( ( in @ ( sK12_C @ SY861 @ SV476 ) @ SV476 )
                    | ( in @ ( sK12_C @ SY861 @ SV476 ) @ SY861 ) ) )
            | ( SV476 = SY861 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2059]) ).

thf(2179,plain,
    ( ( ~ ( empty @ sK13_A )
      | ~ ( relation @ sK13_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[2060]) ).

thf(2180,plain,
    ! [SV477: $i,SV382: $i] :
      ( ( ~ ( in @ SV382 @ SV477 )
        | ( ( set_union2 @ ( singleton @ SV382 ) @ SV477 )
          = SV477 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2061]) ).

thf(2181,plain,
    ! [SV478: $i,SV383: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV383 ) @ SV478 )
        | ~ ( in @ SV383 @ SV478 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2062]) ).

thf(2182,plain,
    ! [SV479: $i,SV384: $i] :
      ( ( ( in @ SV384 @ SV479 )
        | ( disjoint @ ( singleton @ SV384 ) @ SV479 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2063]) ).

thf(2183,plain,
    ! [SV385: $i,SV480: $i] :
      ( ( ~ ( element @ SV480 @ ( powerset @ SV385 ) )
        | ! [SY862: $i] :
            ( ~ ( in @ SY862 @ SV480 )
            | ( in @ SY862 @ SV385 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2064]) ).

thf(2184,plain,
    ! [SV481: $i,SV386: $i] :
      ( ( ~ ( in @ SV386 @ SV481 )
        | ( subset @ SV386 @ ( union @ SV481 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2065]) ).

thf(2185,plain,
    ! [SV482: $i,SV387: $i] :
      ( ( ~ ( in @ SV387 @ SV482 )
        | ( ( set_union2 @ ( singleton @ SV387 ) @ SV482 )
          = SV482 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2066]) ).

thf(2186,plain,
    ! [SV483: $i,SV388: $i] :
      ( ( ~ ( in @ SV388 @ SV483 )
        | ( subset @ SV388 @ ( union @ SV483 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2067]) ).

thf(2187,plain,
    ! [SV484: $i,SV389: $i] :
      ( ( ~ ( in @ SV389 @ SV484 )
        | ~ ( in @ SV484 @ SV389 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2068]) ).

thf(2188,plain,
    ! [SV485: $i,SV390: $i] :
      ( ( ( ordered_pair @ SV390 @ SV485 )
        = ( unordered_pair @ ( unordered_pair @ SV390 @ SV485 ) @ ( singleton @ SV390 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2069]) ).

thf(2189,plain,
    ! [SV486: $i,SV391: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV391 @ SV486 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2070]) ).

thf(2190,plain,
    ! [SV487: $i,SV392: $i] :
      ( ( ~ ( in @ SV392 @ SV487 )
        | ( element @ SV392 @ SV487 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2071]) ).

thf(2191,plain,
    ! [SV488: $i,SV393: $i] :
      ( ( ~ ( element @ SV393 @ SV488 )
        | ( empty @ SV488 )
        | ( in @ SV393 @ SV488 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2072]) ).

thf(2192,plain,
    ! [SV394: $i,SV489: $i] :
      ( ( ! [SY863: $i] :
            ( ~ ( element @ SV489 @ ( powerset @ SY863 ) )
            | ~ ( in @ SV394 @ SV489 )
            | ( element @ SV394 @ SY863 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2073]) ).

thf(2193,plain,
    ! [SV395: $i,SV490: $i] :
      ( ( ~ ( empty @ SV490 )
        | ~ ( in @ SV395 @ SV490 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2074]) ).

thf(2194,plain,
    ! [SV396: $i] :
      ( ( ( singleton @ SV396 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2075]) ).

thf(2195,plain,
    ! [SV491: $i,SV397: $i] :
      ( ( ~ ( subset @ SV397 @ SV491 )
        | ! [SY864: $i] :
            ( ( in @ SY864 @ SV397 )
            | ( subset @ SV397 @ ( set_difference @ SV491 @ ( singleton @ SY864 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2076]) ).

thf(2196,plain,
    ! [SV492: $i,SV398: $i] :
      ( ( ! [SY865: $i,SY866: $i] :
            ( ( SV398 = SY866 )
            | ( SV398 = SY865 )
            | ( ( unordered_pair @ SV398 @ SV492 )
             != ( unordered_pair @ SY865 @ SY866 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2077]) ).

thf(2197,plain,
    ! [SV493: $i,SV399: $i] :
      ( ( ! [SY867: $i,SY868: $i] :
            ( ~ ( subset @ SV399 @ SV493 )
            | ~ ( subset @ SY867 @ SY868 )
            | ( subset @ ( cartesian_product2 @ SV399 @ SY867 ) @ ( cartesian_product2 @ SV493 @ SY868 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2078]) ).

thf(2198,plain,
    ! [SV494: $i,SV400: $i] :
      ( ( ~ ( subset @ SV400 @ SV494 )
        | ( ( set_union2 @ SV400 @ SV494 )
          = SV494 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2079]) ).

thf(2199,plain,
    ! [SV495: $i,SV401: $i] :
      ( ( subset @ ( set_intersection2 @ SV401 @ SV495 ) @ SV401 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2080]) ).

thf(2200,plain,
    ! [SV496: $i,SV402: $i] :
      ( ( ! [SY869: $i] :
            ( ~ ( subset @ SV402 @ SV496 )
            | ~ ( subset @ SV402 @ SY869 )
            | ( subset @ SV402 @ ( set_intersection2 @ SV496 @ SY869 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2081]) ).

thf(2201,plain,
    ! [SV497: $i,SV403: $i] :
      ( ( ! [SY870: $i] :
            ( ~ ( subset @ SV403 @ SV497 )
            | ~ ( subset @ SV497 @ SY870 )
            | ( subset @ SV403 @ SY870 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2082]) ).

thf(2202,plain,
    ! [SV498: $i,SV404: $i] :
      ( ( ~ ( subset @ SV404 @ SV498 )
        | ! [SY871: $i] : ( subset @ ( set_intersection2 @ SV404 @ SY871 ) @ ( set_intersection2 @ SV498 @ SY871 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2083]) ).

thf(2203,plain,
    ! [SV499: $i,SV405: $i] :
      ( ( ~ ( subset @ SV405 @ SV499 )
        | ( ( set_intersection2 @ SV405 @ SV499 )
          = SV405 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2084]) ).

thf(2204,plain,
    ! [SV500: $i,SV407: $i] :
      ( ( ~ ( subset @ SV407 @ SV500 )
        | ! [SY872: $i] : ( subset @ ( set_difference @ SV407 @ SY872 ) @ ( set_difference @ SV500 @ SY872 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2086]) ).

thf(2205,plain,
    ! [SV501: $i,SV408: $i] :
      ( ( subset @ ( set_difference @ SV408 @ SV501 ) @ SV408 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2087]) ).

thf(2206,plain,
    ! [SV502: $i,SV409: $i] :
      ( ( ( set_union2 @ SV409 @ ( set_difference @ SV502 @ SV409 ) )
        = ( set_union2 @ SV409 @ SV502 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2088]) ).

thf(2207,plain,
    ! [SV410: $i] :
      ( ( ( ~ ( subset @ SV410 @ empty_set ) )
        = $true )
      | ( ( SV410 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2089]) ).

thf(2208,plain,
    ! [SV503: $i,SV411: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV411 @ SV503 ) @ SV503 )
        = ( set_difference @ SV411 @ SV503 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2090]) ).

thf(2209,plain,
    ! [SV504: $i,SV412: $i] :
      ( ( ~ ( subset @ SV412 @ SV504 )
        | ( SV504
          = ( set_union2 @ SV412 @ ( set_difference @ SV504 @ SV412 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2091]) ).

thf(2210,plain,
    ! [SV413: $i,SV505: $i] :
      ( ( ~ ( element @ SV505 @ ( powerset @ ( powerset @ SV413 ) ) )
        | ( SV505 = empty_set )
        | ( ( complements_of_subsets @ SV413 @ SV505 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2092]) ).

thf(2211,plain,
    ! [SV506: $i,SV414: $i] :
      ( ( ( set_difference @ SV414 @ ( set_difference @ SV414 @ SV506 ) )
        = ( set_intersection2 @ SV414 @ SV506 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2093]) ).

thf(2212,plain,
    ! [SV415: $i] :
      ( ( ( SV415 = empty_set )
        = $true )
      | ( ( ! [SY731: $i] :
              ( ~ ( element @ SY731 @ ( powerset @ SV415 ) )
              | ! [SY732: $i] :
                  ( ~ ( element @ SY732 @ SV415 )
                  | ( in @ SY732 @ SY731 )
                  | ( in @ SY732 @ ( subset_complement @ SV415 @ SY731 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2094]) ).

thf(2213,plain,
    ! [SV507: $i,SV416: $i] :
      ( ( ! [SY873: $i] :
            ( ~ ( element @ SY873 @ ( powerset @ SV416 ) )
            | ~ ( in @ SV507 @ ( subset_complement @ SV416 @ SY873 ) )
            | ~ ( in @ SV507 @ SY873 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2095]) ).

thf(2214,plain,
    ! [SV417: $i,SV508: $i] :
      ( ( ~ ( proper_subset @ SV508 @ SV417 )
        | ~ ( subset @ SV417 @ SV508 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2096]) ).

thf(2215,plain,
    ! [SV418: $i,SV509: $i] :
      ( ( ! [SY874: $i] :
            ( ~ ( disjoint @ SV509 @ SY874 )
            | ~ ( subset @ SV418 @ SV509 )
            | ( disjoint @ SV418 @ SY874 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2097]) ).

thf(2216,plain,
    ! [SV510: $i,SV420: $i] :
      ( ( ~ ( subset @ ( singleton @ SV420 ) @ ( singleton @ SV510 ) )
        | ( SV420 = SV510 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2099]) ).

thf(2217,plain,
    ! [SV511: $i,SV421: $i] :
      ( ( subset @ SV421 @ ( set_union2 @ SV421 @ SV511 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2100]) ).

thf(2218,plain,
    ! [SV512: $i,SV422: $i] :
      ( ( ! [SY875: $i] :
            ( ~ ( subset @ SV422 @ SV512 )
            | ~ ( subset @ SY875 @ SV512 )
            | ( subset @ ( set_union2 @ SV422 @ SY875 ) @ SV512 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2101]) ).

thf(2219,plain,
    ! [SV513: $i,SV423: $i] :
      ( ( ! [SY876: $i] :
            ( ( singleton @ SV423 )
           != ( unordered_pair @ SV513 @ SY876 ) )
        | ( SV423 = SV513 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2102]) ).

thf(2220,plain,
    ! [SV514: $i,SV425: $i] :
      ( ( ! [SY877: $i] :
            ( ( ( singleton @ SV425 )
             != ( unordered_pair @ SV514 @ SY877 ) )
            | ( SV514 = SY877 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2104]) ).

thf(2221,plain,
    ! [SV515: $i,SV426: $i] :
      ( ( ( unordered_pair @ SV426 @ SV515 )
        = ( unordered_pair @ SV515 @ SV426 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2105]) ).

thf(2222,plain,
    ! [SV516: $i,SV427: $i] :
      ( ( ( set_union2 @ SV427 @ SV516 )
        = ( set_union2 @ SV516 @ SV427 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2106]) ).

thf(2223,plain,
    ! [SV517: $i,SV428: $i] :
      ( ( ( set_intersection2 @ SV428 @ SV517 )
        = ( set_intersection2 @ SV517 @ SV428 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2107]) ).

thf(2224,plain,
    ! [SV429: $i,SV518: $i] :
      ( ( ~ ( element @ SV518 @ ( powerset @ SV429 ) )
        | ( ( subset_complement @ SV429 @ SV518 )
          = ( set_difference @ SV429 @ SV518 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2108]) ).

thf(2225,plain,
    ! [SV431: $i,SV519: $i] :
      ( ( ~ ( element @ SV519 @ ( powerset @ SV431 ) )
        | ( element @ ( subset_complement @ SV431 @ SV519 ) @ ( powerset @ SV431 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2110]) ).

thf(2226,plain,
    ! [SV432: $i,SV520: $i] :
      ( ( ~ ( element @ SV520 @ ( powerset @ ( powerset @ SV432 ) ) )
        | ( element @ ( union_of_subsets @ SV432 @ SV520 ) @ ( powerset @ SV432 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2111]) ).

thf(2227,plain,
    ! [SV433: $i,SV521: $i] :
      ( ( ~ ( element @ SV521 @ ( powerset @ ( powerset @ SV433 ) ) )
        | ( element @ ( meet_of_subsets @ SV433 @ SV521 ) @ ( powerset @ SV433 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2112]) ).

thf(2228,plain,
    ! [SV434: $i,SV522: $i] :
      ( ( ! [SY878: $i] :
            ( ~ ( element @ SV522 @ ( powerset @ SV434 ) )
            | ~ ( element @ SY878 @ ( powerset @ SV434 ) )
            | ( element @ ( subset_difference @ SV434 @ SV522 @ SY878 ) @ ( powerset @ SV434 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2113]) ).

thf(2229,plain,
    ! [SV435: $i,SV523: $i] :
      ( ( ~ ( element @ SV523 @ ( powerset @ ( powerset @ SV435 ) ) )
        | ( element @ ( complements_of_subsets @ SV435 @ SV523 ) @ ( powerset @ ( powerset @ SV435 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2114]) ).

thf(2230,plain,
    ! [SV437: $i] :
      ( ( empty @ ( powerset @ SV437 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2116]) ).

thf(2231,plain,
    ! [SV438: $i] :
      ( ( empty @ ( singleton @ SV438 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2117]) ).

thf(2232,plain,
    ! [SV439: $i] :
      ( ( ( empty @ SV439 )
        = $true )
      | ( ( ! [SY756: $i] :
              ~ ( empty @ ( set_union2 @ SV439 @ SY756 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2118]) ).

thf(2233,plain,
    ! [SV524: $i,SV440: $i] :
      ( ( ~ ( empty @ ( unordered_pair @ SV440 @ SV524 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2119]) ).

thf(2234,plain,
    ! [SV441: $i] :
      ( ( ( empty @ SV441 )
        = $true )
      | ( ( ! [SY758: $i] :
              ~ ( empty @ ( set_union2 @ SY758 @ SV441 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2120]) ).

thf(2235,plain,
    ! [SV444: $i,SV525: $i] :
      ( ( ~ ( element @ SV525 @ ( powerset @ SV444 ) )
        | ( ( subset_complement @ SV444 @ ( subset_complement @ SV444 @ SV525 ) )
          = SV525 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2123]) ).

thf(2236,plain,
    ! [SV445: $i,SV526: $i] :
      ( ( ~ ( element @ SV526 @ ( powerset @ ( powerset @ SV445 ) ) )
        | ( ( complements_of_subsets @ SV445 @ ( complements_of_subsets @ SV445 @ SV526 ) )
          = SV526 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2124]) ).

thf(2237,plain,
    ! [SV446: $i,SV527: $i] :
      ( ( ~ ( element @ SV527 @ ( powerset @ ( powerset @ SV446 ) ) )
        | ( ( union_of_subsets @ SV446 @ SV527 )
          = ( union @ SV527 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2126]) ).

thf(2238,plain,
    ! [SV447: $i,SV528: $i] :
      ( ( ~ ( element @ SV528 @ ( powerset @ ( powerset @ SV447 ) ) )
        | ( ( meet_of_subsets @ SV447 @ SV528 )
          = ( set_meet @ SV528 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2127]) ).

thf(2239,plain,
    ! [SV448: $i,SV529: $i] :
      ( ( ! [SY879: $i] :
            ( ~ ( element @ SV529 @ ( powerset @ SV448 ) )
            | ~ ( element @ SY879 @ ( powerset @ SV448 ) )
            | ( ( subset_difference @ SV448 @ SV529 @ SY879 )
              = ( set_difference @ SV529 @ SY879 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2128]) ).

thf(2240,plain,
    ! [SV530: $i,SV450: $i] :
      ( ( ~ ( disjoint @ SV450 @ SV530 )
        | ( disjoint @ SV530 @ SV450 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2130]) ).

thf(2241,plain,
    ! [SV455: $i,SV531: $i] :
      ( ( ! [SY880: $i] :
            ( ~ ( element @ SV531 @ ( powerset @ SY880 ) )
            | ~ ( in @ SV455 @ SV531 )
            | ~ ( empty @ SY880 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2135]) ).

thf(2242,plain,
    ! [SV456: $i] :
      ( ( ( ~ ( empty @ SV456 ) )
        = $true )
      | ( ( SV456 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2136]) ).

thf(2243,plain,
    ! [SV532: $i,SV457: $i] :
      ( ( ( SV457 = SV532 )
        | ~ ( empty @ SV457 )
        | ~ ( empty @ SV532 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2137]) ).

thf(2244,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2139]) ).

thf(2245,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2139]) ).

thf(2246,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2140]) ).

thf(2247,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2140]) ).

thf(2248,plain,
    ! [SV458: $i] :
      ( ( ~ ! [SY769: $i,SY770: $i] :
              ( ~ ( ~ ( ! [SY771: $i,SY772: $i] :
                          ( ~ ( in @ SY771 @ SV458 )
                          | ~ ( in @ SY772 @ SY769 )
                          | ( ( sK28_D @ SY770 @ SY769 @ SV458 )
                           != ( ordered_pair @ SY771 @ SY772 ) ) )
                      | ~ ( in @ ( sK28_D @ SY770 @ SY769 @ SV458 ) @ SY770 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY770 @ SY769 @ SV458 ) @ SV458 )
                                | ~ ( in @ ( sK30_SY318 @ SY770 @ SY769 @ SV458 ) @ SY769 ) )
                          | ( ( sK28_D @ SY770 @ SY769 @ SV458 )
                           != ( ordered_pair @ ( sK29_SY316 @ SY770 @ SY769 @ SV458 ) @ ( sK30_SY318 @ SY770 @ SY769 @ SV458 ) ) ) )
                      | ( in @ ( sK28_D @ SY770 @ SY769 @ SV458 ) @ SY770 ) ) )
              | ( SY770
                = ( cartesian_product2 @ SV458 @ SY769 ) ) )
        | ~ ! [SY773: $i,SY774: $i] :
              ( ( SY774
               != ( cartesian_product2 @ SV458 @ SY773 ) )
              | ~ ( ~ ! [SY775: $i] :
                        ( ! [SY776: $i,SY777: $i] :
                            ( ~ ( in @ SY776 @ SV458 )
                            | ~ ( in @ SY777 @ SY773 )
                            | ( SY775
                             != ( ordered_pair @ SY776 @ SY777 ) ) )
                        | ( in @ SY775 @ SY774 ) )
                  | ~ ! [SY778: $i] :
                        ( ~ ( in @ SY778 @ SY774 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY778 @ SY774 @ SY773 @ SV458 ) @ SV458 )
                                  | ~ ( in @ ( sK27_SY313 @ SY778 @ SY774 @ SY773 @ SV458 ) @ SY773 ) )
                            | ( SY778
                             != ( ordered_pair @ ( sK26_E @ SY778 @ SY774 @ SY773 @ SV458 ) @ ( sK27_SY313 @ SY778 @ SY774 @ SY773 @ SV458 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2141]) ).

thf(2249,plain,
    ! [SV459: $i] :
      ( ( ( ~ ( relation @ SV459 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY779: $i] :
                    ( ~ ( ~ ( ! [SY780: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ SY780 ) @ SV459 )
                            | ~ ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ ( sK23_SY312 @ SY779 @ SV459 ) ) @ SV459 )
                            | ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) ) )
                    | ( SY779
                      = ( relation_dom @ SV459 ) ) )
              | ~ ! [SY781: $i] :
                    ( ( SY781
                     != ( relation_dom @ SV459 ) )
                    | ~ ( ~ ! [SY782: $i] :
                              ( ! [SY783: $i] :
                                  ~ ( in @ ( ordered_pair @ SY782 @ SY783 ) @ SV459 )
                              | ( in @ SY782 @ SY781 ) )
                        | ~ ! [SY784: $i] :
                              ( ~ ( in @ SY784 @ SY781 )
                              | ( in @ ( ordered_pair @ SY784 @ ( sK21_D @ SY784 @ SY781 @ SV459 ) ) @ SV459 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2142]) ).

thf(2250,plain,
    ! [SV460: $i] :
      ( ( ~ ! [SY785: $i] :
              ( ~ ( subset @ SY785 @ ( sK10_B @ SV460 ) )
              | ( are_equipotent @ SY785 @ ( sK10_B @ SV460 ) )
              | ( in @ SY785 @ ( sK10_B @ SV460 ) ) )
        | ~ ~ ( ~ ! [SY786: $i] :
                    ( ~ ( ~ ! [SY787: $i] :
                              ( ~ ( subset @ SY787 @ SY786 )
                              | ( in @ SY787 @ ( sK11_SY302 @ SY786 @ SV460 ) ) )
                        | ~ ( in @ ( sK11_SY302 @ SY786 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
                    | ~ ( in @ SY786 @ ( sK10_B @ SV460 ) ) )
              | ~ ~ ( ~ ! [SY788: $i,SY789: $i] :
                          ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
                          | ~ ( subset @ SY789 @ SY788 )
                          | ( in @ SY789 @ ( sK10_B @ SV460 ) ) )
                    | ~ ( in @ SV460 @ ( sK10_B @ SV460 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2143]) ).

thf(2251,plain,
    ! [SV461: $i,SV533: $i] :
      ( ( ~ ( ~ ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV461 )
            | ~ ~ ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV533 ) )
        | ( element @ SV461 @ ( powerset @ SV533 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2144]) ).

thf(2252,plain,
    ! [SV462: $i] :
      ( ( ~ ! [SY791: $i] :
              ( ~ ( subset @ SY791 @ ( sK9_B @ SV462 ) )
              | ( are_equipotent @ SY791 @ ( sK9_B @ SV462 ) )
              | ( in @ SY791 @ ( sK9_B @ SV462 ) ) )
        | ~ ~ ( ~ ! [SY792: $i] :
                    ( ~ ( in @ SY792 @ ( sK9_B @ SV462 ) )
                    | ( in @ ( powerset @ SY792 ) @ ( sK9_B @ SV462 ) ) )
              | ~ ~ ( ~ ! [SY793: $i,SY794: $i] :
                          ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
                          | ~ ( subset @ SY794 @ SY793 )
                          | ( in @ SY794 @ ( sK9_B @ SV462 ) ) )
                    | ~ ( in @ SV462 @ ( sK9_B @ SV462 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2145]) ).

thf(2253,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ~ ( ~ ! [SY881: $i,SY882: $i] :
                  ( ~ ( in @ SV463 @ SY881 )
                  | ~ ( in @ SV534 @ SY882 )
                  | ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY881 @ SY882 ) ) )
            | ~ ~ ( ~ ! [SY883: $i] :
                        ( ! [SY884: $i] :
                            ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY883 @ SY884 ) )
                        | ( in @ SV463 @ SY883 ) )
                  | ~ ! [SY885: $i,SY886: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY885 @ SY886 ) )
                        | ( in @ SV534 @ SY886 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2146]) ).

thf(2254,plain,
    ! [SV464: $i] :
      ( ( ~ ! [SY802: $i,SY803: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SV464 )
                      | ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY802 )
                      | ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SV464 )
                            | ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) )
                        | ~ ( ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY802 )
                            | ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) ) ) )
              | ( SY803
                = ( set_intersection2 @ SV464 @ SY802 ) ) )
        | ~ ! [SY804: $i,SY805: $i] :
              ( ( SY805
               != ( set_intersection2 @ SV464 @ SY804 ) )
              | ~ ( ~ ! [SY806: $i] :
                        ( ~ ( in @ SY806 @ SV464 )
                        | ~ ( in @ SY806 @ SY804 )
                        | ( in @ SY806 @ SY805 ) )
                  | ~ ~ ( ~ ! [SY807: $i] :
                              ( ~ ( in @ SY807 @ SY805 )
                              | ( in @ SY807 @ SV464 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY805 )
                              | ( in @ SX3 @ SY804 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2147]) ).

thf(2255,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2148]) ).

thf(2256,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)],[2148]) ).

thf(2257,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK36_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)],[2149]) ).

thf(2258,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)],[2149]) ).

thf(2259,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)],[2150]) ).

thf(2260,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)],[2150]) ).

thf(2261,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2151]) ).

thf(2262,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2151]) ).

thf(2263,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2152]) ).

thf(2264,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)],[2152]) ).

thf(2265,plain,
    ! [SV465: $i] :
      ( ( ~ ! [SY809: $i,SY810: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SV465 )
                      | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY809 )
                      | ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SV465 )
                            | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) )
                        | ~ ( ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY809 )
                            | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) ) ) )
              | ( SY810
                = ( set_difference @ SV465 @ SY809 ) ) )
        | ~ ! [SY811: $i,SY812: $i] :
              ( ( SY812
               != ( set_difference @ SV465 @ SY811 ) )
              | ~ ( ~ ! [SY813: $i] :
                        ( ~ ( in @ SY813 @ SV465 )
                        | ( in @ SY813 @ SY811 )
                        | ( in @ SY813 @ SY812 ) )
                  | ~ ~ ( ~ ! [SY814: $i] :
                              ( ~ ( in @ SY814 @ SY812 )
                              | ( in @ SY814 @ SV465 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY812 )
                              | ~ ( in @ SX3 @ SY811 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2153]) ).

thf(2266,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ~ ( ~ ! [SY887: $i,SY888: $i] :
                  ( ~ ( in @ SV466 @ SY887 )
                  | ~ ( in @ SV535 @ SY888 )
                  | ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY887 @ SY888 ) ) )
            | ~ ~ ( ~ ! [SY889: $i] :
                        ( ! [SY890: $i] :
                            ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY889 @ SY890 ) )
                        | ( in @ SV466 @ SY889 ) )
                  | ~ ! [SY891: $i,SY892: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY891 @ SY892 ) )
                        | ( in @ SV535 @ SY892 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2154]) ).

thf(2267,plain,
    ! [SV467: $i] :
      ( ( ~ ! [SY823: $i] :
              ( ~ ( subset @ SV467 @ SY823 )
              | ! [SY824: $i] : ( subset @ ( cartesian_product2 @ SV467 @ SY824 ) @ ( cartesian_product2 @ SY823 @ SY824 ) ) )
        | ~ ! [SY825: $i] :
              ( ~ ( subset @ SV467 @ SY825 )
              | ! [SY826: $i] : ( subset @ ( cartesian_product2 @ SY826 @ SV467 ) @ ( cartesian_product2 @ SY826 @ SY825 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2155]) ).

thf(2268,plain,
    ! [SV468: $i] :
      ( ( ( ~ ( relation @ SV468 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY827: $i] :
                    ( ~ ( ~ ( ! [SY828: $i] :
                                ~ ( in @ ( ordered_pair @ SY828 @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                            | ~ ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY827 @ SV468 ) @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                            | ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) ) )
                    | ( SY827
                      = ( relation_rng @ SV468 ) ) )
              | ~ ! [SY829: $i] :
                    ( ( SY829
                     != ( relation_rng @ SV468 ) )
                    | ~ ( ~ ! [SY830: $i] :
                              ( ! [SY831: $i] :
                                  ~ ( in @ ( ordered_pair @ SY831 @ SY830 ) @ SV468 )
                              | ( in @ SY830 @ SY829 ) )
                        | ~ ! [SY832: $i] :
                              ( ~ ( in @ SY832 @ SY829 )
                              | ( in @ ( ordered_pair @ ( sK14_D @ SY832 @ SY829 @ SV468 ) @ SY832 ) @ SV468 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2156]) ).

thf(2269,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK34_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2157]) ).

thf(2270,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2157]) ).

thf(2271,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK35_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK35_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2158]) ).

thf(2272,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)],[2158]) ).

thf(2273,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ ( sK20_SY310 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK20_SY310 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2159]) ).

thf(2274,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 @ ( sK18_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2159]) ).

thf(2275,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2160]) ).

thf(2276,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)],[2160]) ).

thf(2277,plain,
    ! [SV469: $i] :
      ( ( ~ ( element @ ( sK5_B @ SV469 ) @ ( powerset @ SV469 ) )
        | ~ ( empty @ ( sK5_B @ SV469 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2161]) ).

thf(2278,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2162]) ).

thf(2279,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2162]) ).

thf(2280,plain,
    ! [SV470: $i] :
      ( ( ~ ! [SY833: $i,SY834: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                            | ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SV470 ) )
                        | ~ ( ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                            | ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY833 ) ) )
                  | ~ ( ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                      | ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SV470 )
                      | ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY833 ) ) )
              | ( SY834
                = ( set_union2 @ SV470 @ SY833 ) ) )
        | ~ ! [SY835: $i,SY836: $i] :
              ( ( SY836
               != ( set_union2 @ SV470 @ SY835 ) )
              | ~ ( ~ ! [SY837: $i] :
                        ( ~ ( in @ SY837 @ SY836 )
                        | ( in @ SY837 @ SV470 )
                        | ( in @ SY837 @ SY835 ) )
                  | ~ ~ ( ~ ! [SY838: $i] :
                              ( ~ ( in @ SY838 @ SV470 )
                              | ( in @ SY838 @ SY836 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY835 )
                              | ( in @ SX3 @ SY836 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2163]) ).

thf(2281,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2164]) ).

thf(2282,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2164]) ).

thf(2283,plain,
    ! [SV471: $i,SV536: $i] :
      ( ( ~ ( element @ SV536 @ ( powerset @ SV471 ) )
        | ~ ( ~ ! [SY893: $i] :
                  ( ~ ( element @ SY893 @ ( powerset @ SV471 ) )
                  | ~ ( disjoint @ SV536 @ SY893 )
                  | ( subset @ SV536 @ ( subset_complement @ SV471 @ SY893 ) ) )
            | ~ ! [SY894: $i] :
                  ( ~ ( element @ SY894 @ ( powerset @ SV471 ) )
                  | ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SY894 ) )
                  | ( disjoint @ SV536 @ SY894 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2165]) ).

thf(2284,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2166]) ).

thf(2285,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)],[2166]) ).

thf(2286,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2167]) ).

thf(2287,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2167]) ).

thf(2288,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2168]) ).

thf(2289,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2168]) ).

thf(2290,plain,
    ! [SV472: $i] :
      ( ( ~ ! [SY843: $i,SY844: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                            | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                             != SV472 ) )
                        | ~ ( ~ ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                            | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                             != SY843 ) ) )
                  | ~ ( ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                      | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                        = SV472 )
                      | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                        = SY843 ) ) )
              | ( SY844
                = ( unordered_pair @ SV472 @ SY843 ) ) )
        | ~ ! [SY845: $i,SY846: $i] :
              ( ( SY846
               != ( unordered_pair @ SV472 @ SY845 ) )
              | ~ ( ~ ! [SY847: $i] :
                        ( ~ ( in @ SY847 @ SY846 )
                        | ( SY847 = SV472 )
                        | ( SY847 = SY845 ) )
                  | ~ ~ ( ~ ! [SY848: $i] :
                              ( ( SY848 != SV472 )
                              | ( in @ SY848 @ SY846 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY845 )
                              | ( in @ SX3 @ SY846 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2169]) ).

thf(2291,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2170]) ).

thf(2292,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2170]) ).

thf(2293,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2171]) ).

thf(2294,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2171]) ).

thf(2295,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2172]) ).

thf(2296,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2172]) ).

thf(2297,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2173]) ).

thf(2298,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)],[2173]) ).

thf(2299,plain,
    ! [SV537: $i,SV473: $i] :
      ( ( ~ ( ~ ! [SY895: $i] :
                  ( ! [SY896: $i] :
                      ( ( ordered_pair @ SV473 @ SV537 )
                     != ( ordered_pair @ SY895 @ SY896 ) )
                  | ( SV473 = SY895 ) )
            | ~ ! [SY897: $i,SY898: $i] :
                  ( ( ( ordered_pair @ SV473 @ SV537 )
                   != ( ordered_pair @ SY897 @ SY898 ) )
                  | ( SV537 = SY898 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2174]) ).

thf(2300,plain,
    ! [SV474: $i] :
      ( ( ( empty @ SV474 )
        = $true )
      | ( ( ~ ( ~ ( element @ ( sK7_B @ SV474 ) @ ( powerset @ SV474 ) )
              | ~ ~ ( empty @ ( sK7_B @ SV474 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2175]) ).

thf(2301,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2176]) ).

thf(2302,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2176]) ).

thf(2303,plain,
    ! [SV475: $i] :
      ( ( ~ ! [SY855: $i,SY856: $i] :
              ( ~ ( in @ SV475 @ SY856 )
              | ~ ( in @ SY855 @ SY856 )
              | ( subset @ ( unordered_pair @ SV475 @ SY855 ) @ SY856 ) )
        | ~ ~ ( ~ ! [SY857: $i,SY858: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV475 @ SY857 ) @ SY858 )
                    | ( in @ SV475 @ SY858 ) )
              | ~ ! [SY859: $i,SY860: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV475 @ SY859 ) @ SY860 )
                    | ( in @ SY859 @ SY860 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2177]) ).

thf(2304,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
                | ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) )
            | ~ ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
                | ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) ) )
        | ( SV476 = SV538 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2178]) ).

thf(2305,plain,
    ( ( ~ ( empty @ sK13_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2179]) ).

thf(2306,plain,
    ( ( ~ ( relation @ sK13_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2179]) ).

thf(2307,plain,
    ! [SV477: $i,SV382: $i] :
      ( ( ( ~ ( in @ SV382 @ SV477 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV382 ) @ SV477 )
          = SV477 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2180]) ).

thf(2308,plain,
    ! [SV478: $i,SV383: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV383 ) @ SV478 ) )
        = $true )
      | ( ( ~ ( in @ SV383 @ SV478 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2181]) ).

thf(2309,plain,
    ! [SV479: $i,SV384: $i] :
      ( ( ( in @ SV384 @ SV479 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV384 ) @ SV479 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2182]) ).

thf(2310,plain,
    ! [SV385: $i,SV480: $i] :
      ( ( ( ~ ( element @ SV480 @ ( powerset @ SV385 ) ) )
        = $true )
      | ( ( ! [SY862: $i] :
              ( ~ ( in @ SY862 @ SV480 )
              | ( in @ SY862 @ SV385 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2183]) ).

thf(2311,plain,
    ! [SV481: $i,SV386: $i] :
      ( ( ( ~ ( in @ SV386 @ SV481 ) )
        = $true )
      | ( ( subset @ SV386 @ ( union @ SV481 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2184]) ).

thf(2312,plain,
    ! [SV482: $i,SV387: $i] :
      ( ( ( ~ ( in @ SV387 @ SV482 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV387 ) @ SV482 )
          = SV482 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2185]) ).

thf(2313,plain,
    ! [SV483: $i,SV388: $i] :
      ( ( ( ~ ( in @ SV388 @ SV483 ) )
        = $true )
      | ( ( subset @ SV388 @ ( union @ SV483 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2186]) ).

thf(2314,plain,
    ! [SV484: $i,SV389: $i] :
      ( ( ( ~ ( in @ SV389 @ SV484 ) )
        = $true )
      | ( ( ~ ( in @ SV484 @ SV389 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2187]) ).

thf(2315,plain,
    ! [SV486: $i,SV391: $i] :
      ( ( empty @ ( ordered_pair @ SV391 @ SV486 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2189]) ).

thf(2316,plain,
    ! [SV487: $i,SV392: $i] :
      ( ( ( ~ ( in @ SV392 @ SV487 ) )
        = $true )
      | ( ( element @ SV392 @ SV487 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2190]) ).

thf(2317,plain,
    ! [SV488: $i,SV393: $i] :
      ( ( ( ~ ( element @ SV393 @ SV488 ) )
        = $true )
      | ( ( ( empty @ SV488 )
          | ( in @ SV393 @ SV488 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2191]) ).

thf(2318,plain,
    ! [SV394: $i,SV539: $i,SV489: $i] :
      ( ( ~ ( element @ SV489 @ ( powerset @ SV539 ) )
        | ~ ( in @ SV394 @ SV489 )
        | ( element @ SV394 @ SV539 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2192]) ).

thf(2319,plain,
    ! [SV395: $i,SV490: $i] :
      ( ( ( ~ ( empty @ SV490 ) )
        = $true )
      | ( ( ~ ( in @ SV395 @ SV490 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2193]) ).

thf(2320,plain,
    ! [SV491: $i,SV397: $i] :
      ( ( ( ~ ( subset @ SV397 @ SV491 ) )
        = $true )
      | ( ( ! [SY864: $i] :
              ( ( in @ SY864 @ SV397 )
              | ( subset @ SV397 @ ( set_difference @ SV491 @ ( singleton @ SY864 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2195]) ).

thf(2321,plain,
    ! [SV492: $i,SV540: $i,SV398: $i] :
      ( ( ! [SY899: $i] :
            ( ( SV398 = SY899 )
            | ( SV398 = SV540 )
            | ( ( unordered_pair @ SV398 @ SV492 )
             != ( unordered_pair @ SV540 @ SY899 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2196]) ).

thf(2322,plain,
    ! [SV541: $i,SV493: $i,SV399: $i] :
      ( ( ! [SY900: $i] :
            ( ~ ( subset @ SV399 @ SV493 )
            | ~ ( subset @ SV541 @ SY900 )
            | ( subset @ ( cartesian_product2 @ SV399 @ SV541 ) @ ( cartesian_product2 @ SV493 @ SY900 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2197]) ).

thf(2323,plain,
    ! [SV494: $i,SV400: $i] :
      ( ( ( ~ ( subset @ SV400 @ SV494 ) )
        = $true )
      | ( ( ( set_union2 @ SV400 @ SV494 )
          = SV494 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2198]) ).

thf(2324,plain,
    ! [SV542: $i,SV496: $i,SV402: $i] :
      ( ( ~ ( subset @ SV402 @ SV496 )
        | ~ ( subset @ SV402 @ SV542 )
        | ( subset @ SV402 @ ( set_intersection2 @ SV496 @ SV542 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2200]) ).

thf(2325,plain,
    ! [SV543: $i,SV497: $i,SV403: $i] :
      ( ( ~ ( subset @ SV403 @ SV497 )
        | ~ ( subset @ SV497 @ SV543 )
        | ( subset @ SV403 @ SV543 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2201]) ).

thf(2326,plain,
    ! [SV498: $i,SV404: $i] :
      ( ( ( ~ ( subset @ SV404 @ SV498 ) )
        = $true )
      | ( ( ! [SY871: $i] : ( subset @ ( set_intersection2 @ SV404 @ SY871 ) @ ( set_intersection2 @ SV498 @ SY871 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2202]) ).

thf(2327,plain,
    ! [SV499: $i,SV405: $i] :
      ( ( ( ~ ( subset @ SV405 @ SV499 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV405 @ SV499 )
          = SV405 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2203]) ).

thf(2328,plain,
    ! [SV500: $i,SV407: $i] :
      ( ( ( ~ ( subset @ SV407 @ SV500 ) )
        = $true )
      | ( ( ! [SY872: $i] : ( subset @ ( set_difference @ SV407 @ SY872 ) @ ( set_difference @ SV500 @ SY872 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2204]) ).

thf(2329,plain,
    ! [SV410: $i] :
      ( ( ( subset @ SV410 @ empty_set )
        = $false )
      | ( ( SV410 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2207]) ).

thf(2330,plain,
    ! [SV504: $i,SV412: $i] :
      ( ( ( ~ ( subset @ SV412 @ SV504 ) )
        = $true )
      | ( ( SV504
          = ( set_union2 @ SV412 @ ( set_difference @ SV504 @ SV412 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2209]) ).

thf(2331,plain,
    ! [SV413: $i,SV505: $i] :
      ( ( ( ~ ( element @ SV505 @ ( powerset @ ( powerset @ SV413 ) ) ) )
        = $true )
      | ( ( ( SV505 = empty_set )
          | ( ( complements_of_subsets @ SV413 @ SV505 )
           != empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2210]) ).

thf(2332,plain,
    ! [SV415: $i,SV544: $i] :
      ( ( ( ~ ( element @ SV544 @ ( powerset @ SV415 ) )
          | ! [SY901: $i] :
              ( ~ ( element @ SY901 @ SV415 )
              | ( in @ SY901 @ SV544 )
              | ( in @ SY901 @ ( subset_complement @ SV415 @ SV544 ) ) ) )
        = $true )
      | ( ( SV415 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2212]) ).

thf(2333,plain,
    ! [SV507: $i,SV416: $i,SV545: $i] :
      ( ( ~ ( element @ SV545 @ ( powerset @ SV416 ) )
        | ~ ( in @ SV507 @ ( subset_complement @ SV416 @ SV545 ) )
        | ~ ( in @ SV507 @ SV545 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2213]) ).

thf(2334,plain,
    ! [SV417: $i,SV508: $i] :
      ( ( ( ~ ( proper_subset @ SV508 @ SV417 ) )
        = $true )
      | ( ( ~ ( subset @ SV417 @ SV508 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2214]) ).

thf(2335,plain,
    ! [SV418: $i,SV546: $i,SV509: $i] :
      ( ( ~ ( disjoint @ SV509 @ SV546 )
        | ~ ( subset @ SV418 @ SV509 )
        | ( disjoint @ SV418 @ SV546 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2215]) ).

thf(2336,plain,
    ! [SV510: $i,SV420: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV420 ) @ ( singleton @ SV510 ) ) )
        = $true )
      | ( ( SV420 = SV510 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2216]) ).

thf(2337,plain,
    ! [SV547: $i,SV512: $i,SV422: $i] :
      ( ( ~ ( subset @ SV422 @ SV512 )
        | ~ ( subset @ SV547 @ SV512 )
        | ( subset @ ( set_union2 @ SV422 @ SV547 ) @ SV512 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2218]) ).

thf(2338,plain,
    ! [SV513: $i,SV423: $i] :
      ( ( ( ! [SY876: $i] :
              ( ( singleton @ SV423 )
             != ( unordered_pair @ SV513 @ SY876 ) ) )
        = $true )
      | ( ( SV423 = SV513 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2219]) ).

thf(2339,plain,
    ! [SV548: $i,SV514: $i,SV425: $i] :
      ( ( ( ( singleton @ SV425 )
         != ( unordered_pair @ SV514 @ SV548 ) )
        | ( SV514 = SV548 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2220]) ).

thf(2340,plain,
    ! [SV429: $i,SV518: $i] :
      ( ( ( ~ ( element @ SV518 @ ( powerset @ SV429 ) ) )
        = $true )
      | ( ( ( subset_complement @ SV429 @ SV518 )
          = ( set_difference @ SV429 @ SV518 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2224]) ).

thf(2341,plain,
    ! [SV431: $i,SV519: $i] :
      ( ( ( ~ ( element @ SV519 @ ( powerset @ SV431 ) ) )
        = $true )
      | ( ( element @ ( subset_complement @ SV431 @ SV519 ) @ ( powerset @ SV431 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2225]) ).

thf(2342,plain,
    ! [SV432: $i,SV520: $i] :
      ( ( ( ~ ( element @ SV520 @ ( powerset @ ( powerset @ SV432 ) ) ) )
        = $true )
      | ( ( element @ ( union_of_subsets @ SV432 @ SV520 ) @ ( powerset @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2226]) ).

thf(2343,plain,
    ! [SV433: $i,SV521: $i] :
      ( ( ( ~ ( element @ SV521 @ ( powerset @ ( powerset @ SV433 ) ) ) )
        = $true )
      | ( ( element @ ( meet_of_subsets @ SV433 @ SV521 ) @ ( powerset @ SV433 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2227]) ).

thf(2344,plain,
    ! [SV549: $i,SV434: $i,SV522: $i] :
      ( ( ~ ( element @ SV522 @ ( powerset @ SV434 ) )
        | ~ ( element @ SV549 @ ( powerset @ SV434 ) )
        | ( element @ ( subset_difference @ SV434 @ SV522 @ SV549 ) @ ( powerset @ SV434 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2228]) ).

thf(2345,plain,
    ! [SV435: $i,SV523: $i] :
      ( ( ( ~ ( element @ SV523 @ ( powerset @ ( powerset @ SV435 ) ) ) )
        = $true )
      | ( ( element @ ( complements_of_subsets @ SV435 @ SV523 ) @ ( powerset @ ( powerset @ SV435 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2229]) ).

thf(2346,plain,
    ! [SV550: $i,SV439: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV439 @ SV550 ) ) )
        = $true )
      | ( ( empty @ SV439 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2232]) ).

thf(2347,plain,
    ! [SV524: $i,SV440: $i] :
      ( ( empty @ ( unordered_pair @ SV440 @ SV524 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2233]) ).

thf(2348,plain,
    ! [SV441: $i,SV551: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV551 @ SV441 ) ) )
        = $true )
      | ( ( empty @ SV441 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2234]) ).

thf(2349,plain,
    ! [SV444: $i,SV525: $i] :
      ( ( ( ~ ( element @ SV525 @ ( powerset @ SV444 ) ) )
        = $true )
      | ( ( ( subset_complement @ SV444 @ ( subset_complement @ SV444 @ SV525 ) )
          = SV525 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2235]) ).

thf(2350,plain,
    ! [SV445: $i,SV526: $i] :
      ( ( ( ~ ( element @ SV526 @ ( powerset @ ( powerset @ SV445 ) ) ) )
        = $true )
      | ( ( ( complements_of_subsets @ SV445 @ ( complements_of_subsets @ SV445 @ SV526 ) )
          = SV526 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2236]) ).

thf(2351,plain,
    ! [SV446: $i,SV527: $i] :
      ( ( ( ~ ( element @ SV527 @ ( powerset @ ( powerset @ SV446 ) ) ) )
        = $true )
      | ( ( ( union_of_subsets @ SV446 @ SV527 )
          = ( union @ SV527 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2237]) ).

thf(2352,plain,
    ! [SV447: $i,SV528: $i] :
      ( ( ( ~ ( element @ SV528 @ ( powerset @ ( powerset @ SV447 ) ) ) )
        = $true )
      | ( ( ( meet_of_subsets @ SV447 @ SV528 )
          = ( set_meet @ SV528 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2238]) ).

thf(2353,plain,
    ! [SV552: $i,SV448: $i,SV529: $i] :
      ( ( ~ ( element @ SV529 @ ( powerset @ SV448 ) )
        | ~ ( element @ SV552 @ ( powerset @ SV448 ) )
        | ( ( subset_difference @ SV448 @ SV529 @ SV552 )
          = ( set_difference @ SV529 @ SV552 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2239]) ).

thf(2354,plain,
    ! [SV530: $i,SV450: $i] :
      ( ( ( ~ ( disjoint @ SV450 @ SV530 ) )
        = $true )
      | ( ( disjoint @ SV530 @ SV450 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2240]) ).

thf(2355,plain,
    ! [SV455: $i,SV553: $i,SV531: $i] :
      ( ( ~ ( element @ SV531 @ ( powerset @ SV553 ) )
        | ~ ( in @ SV455 @ SV531 )
        | ~ ( empty @ SV553 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2241]) ).

thf(2356,plain,
    ! [SV456: $i] :
      ( ( ( empty @ SV456 )
        = $false )
      | ( ( SV456 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2242]) ).

thf(2357,plain,
    ! [SV532: $i,SV457: $i] :
      ( ( ( ( SV457 = SV532 )
          | ~ ( empty @ SV457 ) )
        = $true )
      | ( ( ~ ( empty @ SV532 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2243]) ).

thf(2358,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2244]) ).

thf(2359,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2245]) ).

thf(2360,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK39_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2246]) ).

thf(2361,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2247]) ).

thf(2362,plain,
    ! [SV458: $i] :
      ( ( ~ ! [SY769: $i,SY770: $i] :
              ( ~ ( ~ ( ! [SY771: $i,SY772: $i] :
                          ( ~ ( in @ SY771 @ SV458 )
                          | ~ ( in @ SY772 @ SY769 )
                          | ( ( sK28_D @ SY770 @ SY769 @ SV458 )
                           != ( ordered_pair @ SY771 @ SY772 ) ) )
                      | ~ ( in @ ( sK28_D @ SY770 @ SY769 @ SV458 ) @ SY770 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY770 @ SY769 @ SV458 ) @ SV458 )
                                | ~ ( in @ ( sK30_SY318 @ SY770 @ SY769 @ SV458 ) @ SY769 ) )
                          | ( ( sK28_D @ SY770 @ SY769 @ SV458 )
                           != ( ordered_pair @ ( sK29_SY316 @ SY770 @ SY769 @ SV458 ) @ ( sK30_SY318 @ SY770 @ SY769 @ SV458 ) ) ) )
                      | ( in @ ( sK28_D @ SY770 @ SY769 @ SV458 ) @ SY770 ) ) )
              | ( SY770
                = ( cartesian_product2 @ SV458 @ SY769 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2248]) ).

thf(2363,plain,
    ! [SV458: $i] :
      ( ( ~ ! [SY773: $i,SY774: $i] :
              ( ( SY774
               != ( cartesian_product2 @ SV458 @ SY773 ) )
              | ~ ( ~ ! [SY775: $i] :
                        ( ! [SY776: $i,SY777: $i] :
                            ( ~ ( in @ SY776 @ SV458 )
                            | ~ ( in @ SY777 @ SY773 )
                            | ( SY775
                             != ( ordered_pair @ SY776 @ SY777 ) ) )
                        | ( in @ SY775 @ SY774 ) )
                  | ~ ! [SY778: $i] :
                        ( ~ ( in @ SY778 @ SY774 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY778 @ SY774 @ SY773 @ SV458 ) @ SV458 )
                                  | ~ ( in @ ( sK27_SY313 @ SY778 @ SY774 @ SY773 @ SV458 ) @ SY773 ) )
                            | ( SY778
                             != ( ordered_pair @ ( sK26_E @ SY778 @ SY774 @ SY773 @ SV458 ) @ ( sK27_SY313 @ SY778 @ SY774 @ SY773 @ SV458 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2248]) ).

thf(2364,plain,
    ! [SV459: $i] :
      ( ( ( relation @ SV459 )
        = $false )
      | ( ( ~ ( ~ ! [SY779: $i] :
                    ( ~ ( ~ ( ! [SY780: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ SY780 ) @ SV459 )
                            | ~ ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ ( sK23_SY312 @ SY779 @ SV459 ) ) @ SV459 )
                            | ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) ) )
                    | ( SY779
                      = ( relation_dom @ SV459 ) ) )
              | ~ ! [SY781: $i] :
                    ( ( SY781
                     != ( relation_dom @ SV459 ) )
                    | ~ ( ~ ! [SY782: $i] :
                              ( ! [SY783: $i] :
                                  ~ ( in @ ( ordered_pair @ SY782 @ SY783 ) @ SV459 )
                              | ( in @ SY782 @ SY781 ) )
                        | ~ ! [SY784: $i] :
                              ( ~ ( in @ SY784 @ SY781 )
                              | ( in @ ( ordered_pair @ SY784 @ ( sK21_D @ SY784 @ SY781 @ SV459 ) ) @ SV459 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2249]) ).

thf(2365,plain,
    ! [SV460: $i] :
      ( ( ~ ! [SY785: $i] :
              ( ~ ( subset @ SY785 @ ( sK10_B @ SV460 ) )
              | ( are_equipotent @ SY785 @ ( sK10_B @ SV460 ) )
              | ( in @ SY785 @ ( sK10_B @ SV460 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2250]) ).

thf(2366,plain,
    ! [SV460: $i] :
      ( ( ~ ~ ( ~ ! [SY786: $i] :
                    ( ~ ( ~ ! [SY787: $i] :
                              ( ~ ( subset @ SY787 @ SY786 )
                              | ( in @ SY787 @ ( sK11_SY302 @ SY786 @ SV460 ) ) )
                        | ~ ( in @ ( sK11_SY302 @ SY786 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
                    | ~ ( in @ SY786 @ ( sK10_B @ SV460 ) ) )
              | ~ ~ ( ~ ! [SY788: $i,SY789: $i] :
                          ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
                          | ~ ( subset @ SY789 @ SY788 )
                          | ( in @ SY789 @ ( sK10_B @ SV460 ) ) )
                    | ~ ( in @ SV460 @ ( sK10_B @ SV460 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2250]) ).

thf(2367,plain,
    ! [SV461: $i,SV533: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV461 )
              | ~ ~ ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV533 ) ) )
        = $true )
      | ( ( element @ SV461 @ ( powerset @ SV533 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2251]) ).

thf(2368,plain,
    ! [SV462: $i] :
      ( ( ~ ! [SY791: $i] :
              ( ~ ( subset @ SY791 @ ( sK9_B @ SV462 ) )
              | ( are_equipotent @ SY791 @ ( sK9_B @ SV462 ) )
              | ( in @ SY791 @ ( sK9_B @ SV462 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2252]) ).

thf(2369,plain,
    ! [SV462: $i] :
      ( ( ~ ~ ( ~ ! [SY792: $i] :
                    ( ~ ( in @ SY792 @ ( sK9_B @ SV462 ) )
                    | ( in @ ( powerset @ SY792 ) @ ( sK9_B @ SV462 ) ) )
              | ~ ~ ( ~ ! [SY793: $i,SY794: $i] :
                          ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
                          | ~ ( subset @ SY794 @ SY793 )
                          | ( in @ SY794 @ ( sK9_B @ SV462 ) ) )
                    | ~ ( in @ SV462 @ ( sK9_B @ SV462 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2252]) ).

thf(2370,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ~ ! [SY881: $i,SY882: $i] :
              ( ~ ( in @ SV463 @ SY881 )
              | ~ ( in @ SV534 @ SY882 )
              | ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY881 @ SY882 ) ) )
        | ~ ~ ( ~ ! [SY883: $i] :
                    ( ! [SY884: $i] :
                        ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY883 @ SY884 ) )
                    | ( in @ SV463 @ SY883 ) )
              | ~ ! [SY885: $i,SY886: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY885 @ SY886 ) )
                    | ( in @ SV534 @ SY886 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2253]) ).

thf(2371,plain,
    ! [SV464: $i] :
      ( ( ~ ! [SY802: $i,SY803: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SV464 )
                      | ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY802 )
                      | ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SV464 )
                            | ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) )
                        | ~ ( ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY802 )
                            | ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) ) ) )
              | ( SY803
                = ( set_intersection2 @ SV464 @ SY802 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2254]) ).

thf(2372,plain,
    ! [SV464: $i] :
      ( ( ~ ! [SY804: $i,SY805: $i] :
              ( ( SY805
               != ( set_intersection2 @ SV464 @ SY804 ) )
              | ~ ( ~ ! [SY806: $i] :
                        ( ~ ( in @ SY806 @ SV464 )
                        | ~ ( in @ SY806 @ SY804 )
                        | ( in @ SY806 @ SY805 ) )
                  | ~ ~ ( ~ ! [SY807: $i] :
                              ( ~ ( in @ SY807 @ SY805 )
                              | ( in @ SY807 @ SV464 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY805 )
                              | ( in @ SX3 @ SY804 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2254]) ).

thf(2373,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2255]) ).

thf(2374,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)],[2256]) ).

thf(2375,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                                | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX0 )
                                | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ SX2 @ ( sK36_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)],[2257]) ).

thf(2376,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)],[2258]) ).

thf(2377,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)],[2259]) ).

thf(2378,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)],[2260]) ).

thf(2379,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2261]) ).

thf(2380,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2262]) ).

thf(2381,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2263]) ).

thf(2382,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)],[2264]) ).

thf(2383,plain,
    ! [SV465: $i] :
      ( ( ~ ! [SY809: $i,SY810: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SV465 )
                      | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY809 )
                      | ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SV465 )
                            | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) )
                        | ~ ( ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY809 )
                            | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) ) ) )
              | ( SY810
                = ( set_difference @ SV465 @ SY809 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2265]) ).

thf(2384,plain,
    ! [SV465: $i] :
      ( ( ~ ! [SY811: $i,SY812: $i] :
              ( ( SY812
               != ( set_difference @ SV465 @ SY811 ) )
              | ~ ( ~ ! [SY813: $i] :
                        ( ~ ( in @ SY813 @ SV465 )
                        | ( in @ SY813 @ SY811 )
                        | ( in @ SY813 @ SY812 ) )
                  | ~ ~ ( ~ ! [SY814: $i] :
                              ( ~ ( in @ SY814 @ SY812 )
                              | ( in @ SY814 @ SV465 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY812 )
                              | ~ ( in @ SX3 @ SY811 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2265]) ).

thf(2385,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ~ ! [SY887: $i,SY888: $i] :
              ( ~ ( in @ SV466 @ SY887 )
              | ~ ( in @ SV535 @ SY888 )
              | ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY887 @ SY888 ) ) )
        | ~ ~ ( ~ ! [SY889: $i] :
                    ( ! [SY890: $i] :
                        ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY889 @ SY890 ) )
                    | ( in @ SV466 @ SY889 ) )
              | ~ ! [SY891: $i,SY892: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY891 @ SY892 ) )
                    | ( in @ SV535 @ SY892 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2266]) ).

thf(2386,plain,
    ! [SV467: $i] :
      ( ( ~ ! [SY823: $i] :
              ( ~ ( subset @ SV467 @ SY823 )
              | ! [SY824: $i] : ( subset @ ( cartesian_product2 @ SV467 @ SY824 ) @ ( cartesian_product2 @ SY823 @ SY824 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2267]) ).

thf(2387,plain,
    ! [SV467: $i] :
      ( ( ~ ! [SY825: $i] :
              ( ~ ( subset @ SV467 @ SY825 )
              | ! [SY826: $i] : ( subset @ ( cartesian_product2 @ SY826 @ SV467 ) @ ( cartesian_product2 @ SY826 @ SY825 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2267]) ).

thf(2388,plain,
    ! [SV468: $i] :
      ( ( ( relation @ SV468 )
        = $false )
      | ( ( ~ ( ~ ! [SY827: $i] :
                    ( ~ ( ~ ( ! [SY828: $i] :
                                ~ ( in @ ( ordered_pair @ SY828 @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                            | ~ ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY827 @ SV468 ) @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                            | ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) ) )
                    | ( SY827
                      = ( relation_rng @ SV468 ) ) )
              | ~ ! [SY829: $i] :
                    ( ( SY829
                     != ( relation_rng @ SV468 ) )
                    | ~ ( ~ ! [SY830: $i] :
                              ( ! [SY831: $i] :
                                  ~ ( in @ ( ordered_pair @ SY831 @ SY830 ) @ SV468 )
                              | ( in @ SY830 @ SY829 ) )
                        | ~ ! [SY832: $i] :
                              ( ~ ( in @ SY832 @ SY829 )
                              | ( in @ ( ordered_pair @ ( sK14_D @ SY832 @ SY829 @ SV468 ) @ SY832 ) @ SV468 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2268]) ).

thf(2389,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK34_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2269]) ).

thf(2390,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2270]) ).

thf(2391,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK35_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK35_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK35_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2271]) ).

thf(2392,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)],[2272]) ).

thf(2393,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ! [SX2: $i] :
                      ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX2 )
                      | ~ ( in @ SX2 @ SX0 ) )
                  | ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ ( sK20_SY310 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK20_SY310 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2273]) ).

thf(2394,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 @ ( sK18_D @ SX2 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2274]) ).

thf(2395,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2275]) ).

thf(2396,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)],[2276]) ).

thf(2397,plain,
    ! [SV469: $i] :
      ( ( ~ ( element @ ( sK5_B @ SV469 ) @ ( powerset @ SV469 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2277]) ).

thf(2398,plain,
    ! [SV469: $i] :
      ( ( ~ ( empty @ ( sK5_B @ SV469 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2277]) ).

thf(2399,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2278]) ).

thf(2400,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2279]) ).

thf(2401,plain,
    ! [SV470: $i] :
      ( ( ~ ! [SY833: $i,SY834: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                            | ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SV470 ) )
                        | ~ ( ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                            | ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY833 ) ) )
                  | ~ ( ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                      | ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SV470 )
                      | ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY833 ) ) )
              | ( SY834
                = ( set_union2 @ SV470 @ SY833 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2280]) ).

thf(2402,plain,
    ! [SV470: $i] :
      ( ( ~ ! [SY835: $i,SY836: $i] :
              ( ( SY836
               != ( set_union2 @ SV470 @ SY835 ) )
              | ~ ( ~ ! [SY837: $i] :
                        ( ~ ( in @ SY837 @ SY836 )
                        | ( in @ SY837 @ SV470 )
                        | ( in @ SY837 @ SY835 ) )
                  | ~ ~ ( ~ ! [SY838: $i] :
                              ( ~ ( in @ SY838 @ SV470 )
                              | ( in @ SY838 @ SY836 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY835 )
                              | ( in @ SX3 @ SY836 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2280]) ).

thf(2403,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2281]) ).

thf(2404,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2282]) ).

thf(2405,plain,
    ! [SV471: $i,SV536: $i] :
      ( ( ( ~ ( element @ SV536 @ ( powerset @ SV471 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY893: $i] :
                    ( ~ ( element @ SY893 @ ( powerset @ SV471 ) )
                    | ~ ( disjoint @ SV536 @ SY893 )
                    | ( subset @ SV536 @ ( subset_complement @ SV471 @ SY893 ) ) )
              | ~ ! [SY894: $i] :
                    ( ~ ( element @ SY894 @ ( powerset @ SV471 ) )
                    | ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SY894 ) )
                    | ( disjoint @ SV536 @ SY894 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2283]) ).

thf(2406,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2284]) ).

thf(2407,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)],[2285]) ).

thf(2408,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX0 @ ( powerset @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2286]) ).

thf(2409,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2287]) ).

thf(2410,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2288]) ).

thf(2411,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2289]) ).

thf(2412,plain,
    ! [SV472: $i] :
      ( ( ~ ! [SY843: $i,SY844: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                            | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                             != SV472 ) )
                        | ~ ( ~ ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                            | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                             != SY843 ) ) )
                  | ~ ( ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                      | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                        = SV472 )
                      | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                        = SY843 ) ) )
              | ( SY844
                = ( unordered_pair @ SV472 @ SY843 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2290]) ).

thf(2413,plain,
    ! [SV472: $i] :
      ( ( ~ ! [SY845: $i,SY846: $i] :
              ( ( SY846
               != ( unordered_pair @ SV472 @ SY845 ) )
              | ~ ( ~ ! [SY847: $i] :
                        ( ~ ( in @ SY847 @ SY846 )
                        | ( SY847 = SV472 )
                        | ( SY847 = SY845 ) )
                  | ~ ~ ( ~ ! [SY848: $i] :
                              ( ( SY848 != SV472 )
                              | ( in @ SY848 @ SY846 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY845 )
                              | ( in @ SX3 @ SY846 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2290]) ).

thf(2414,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2291]) ).

thf(2415,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2292]) ).

thf(2416,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2293]) ).

thf(2417,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2294]) ).

thf(2418,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2295]) ).

thf(2419,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2296]) ).

thf(2420,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK33_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK33_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2297]) ).

thf(2421,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)],[2298]) ).

thf(2422,plain,
    ! [SV537: $i,SV473: $i] :
      ( ( ~ ! [SY895: $i] :
              ( ! [SY896: $i] :
                  ( ( ordered_pair @ SV473 @ SV537 )
                 != ( ordered_pair @ SY895 @ SY896 ) )
              | ( SV473 = SY895 ) )
        | ~ ! [SY897: $i,SY898: $i] :
              ( ( ( ordered_pair @ SV473 @ SV537 )
               != ( ordered_pair @ SY897 @ SY898 ) )
              | ( SV537 = SY898 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2299]) ).

thf(2423,plain,
    ! [SV474: $i] :
      ( ( ( ~ ( element @ ( sK7_B @ SV474 ) @ ( powerset @ SV474 ) )
          | ~ ~ ( empty @ ( sK7_B @ SV474 ) ) )
        = $false )
      | ( ( empty @ SV474 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2300]) ).

thf(2424,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2301]) ).

thf(2425,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2302]) ).

thf(2426,plain,
    ! [SV475: $i] :
      ( ( ~ ! [SY855: $i,SY856: $i] :
              ( ~ ( in @ SV475 @ SY856 )
              | ~ ( in @ SY855 @ SY856 )
              | ( subset @ ( unordered_pair @ SV475 @ SY855 ) @ SY856 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2303]) ).

thf(2427,plain,
    ! [SV475: $i] :
      ( ( ~ ~ ( ~ ! [SY857: $i,SY858: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV475 @ SY857 ) @ SY858 )
                    | ( in @ SV475 @ SY858 ) )
              | ~ ! [SY859: $i,SY860: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV475 @ SY859 ) @ SY860 )
                    | ( in @ SY859 @ SY860 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2303]) ).

thf(2428,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
                  | ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) )
              | ~ ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
                  | ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) ) ) )
        = $true )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2304]) ).

thf(2429,plain,
    ( ( empty @ sK13_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2305]) ).

thf(2430,plain,
    ( ( relation @ sK13_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2306]) ).

thf(2431,plain,
    ! [SV477: $i,SV382: $i] :
      ( ( ( in @ SV382 @ SV477 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV382 ) @ SV477 )
          = SV477 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2307]) ).

thf(2432,plain,
    ! [SV478: $i,SV383: $i] :
      ( ( ( disjoint @ ( singleton @ SV383 ) @ SV478 )
        = $false )
      | ( ( ~ ( in @ SV383 @ SV478 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2308]) ).

thf(2433,plain,
    ! [SV385: $i,SV480: $i] :
      ( ( ( element @ SV480 @ ( powerset @ SV385 ) )
        = $false )
      | ( ( ! [SY862: $i] :
              ( ~ ( in @ SY862 @ SV480 )
              | ( in @ SY862 @ SV385 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2310]) ).

thf(2434,plain,
    ! [SV481: $i,SV386: $i] :
      ( ( ( in @ SV386 @ SV481 )
        = $false )
      | ( ( subset @ SV386 @ ( union @ SV481 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2311]) ).

thf(2435,plain,
    ! [SV482: $i,SV387: $i] :
      ( ( ( in @ SV387 @ SV482 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV387 ) @ SV482 )
          = SV482 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2312]) ).

thf(2436,plain,
    ! [SV483: $i,SV388: $i] :
      ( ( ( in @ SV388 @ SV483 )
        = $false )
      | ( ( subset @ SV388 @ ( union @ SV483 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2313]) ).

thf(2437,plain,
    ! [SV484: $i,SV389: $i] :
      ( ( ( in @ SV389 @ SV484 )
        = $false )
      | ( ( ~ ( in @ SV484 @ SV389 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2314]) ).

thf(2438,plain,
    ! [SV487: $i,SV392: $i] :
      ( ( ( in @ SV392 @ SV487 )
        = $false )
      | ( ( element @ SV392 @ SV487 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2316]) ).

thf(2439,plain,
    ! [SV488: $i,SV393: $i] :
      ( ( ( element @ SV393 @ SV488 )
        = $false )
      | ( ( ( empty @ SV488 )
          | ( in @ SV393 @ SV488 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2317]) ).

thf(2440,plain,
    ! [SV394: $i,SV539: $i,SV489: $i] :
      ( ( ( ~ ( element @ SV489 @ ( powerset @ SV539 ) )
          | ~ ( in @ SV394 @ SV489 ) )
        = $true )
      | ( ( element @ SV394 @ SV539 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2318]) ).

thf(2441,plain,
    ! [SV395: $i,SV490: $i] :
      ( ( ( empty @ SV490 )
        = $false )
      | ( ( ~ ( in @ SV395 @ SV490 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2319]) ).

thf(2442,plain,
    ! [SV491: $i,SV397: $i] :
      ( ( ( subset @ SV397 @ SV491 )
        = $false )
      | ( ( ! [SY864: $i] :
              ( ( in @ SY864 @ SV397 )
              | ( subset @ SV397 @ ( set_difference @ SV491 @ ( singleton @ SY864 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2320]) ).

thf(2443,plain,
    ! [SV492: $i,SV540: $i,SV554: $i,SV398: $i] :
      ( ( ( SV398 = SV554 )
        | ( SV398 = SV540 )
        | ( ( unordered_pair @ SV398 @ SV492 )
         != ( unordered_pair @ SV540 @ SV554 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2321]) ).

thf(2444,plain,
    ! [SV555: $i,SV541: $i,SV493: $i,SV399: $i] :
      ( ( ~ ( subset @ SV399 @ SV493 )
        | ~ ( subset @ SV541 @ SV555 )
        | ( subset @ ( cartesian_product2 @ SV399 @ SV541 ) @ ( cartesian_product2 @ SV493 @ SV555 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2322]) ).

thf(2445,plain,
    ! [SV494: $i,SV400: $i] :
      ( ( ( subset @ SV400 @ SV494 )
        = $false )
      | ( ( ( set_union2 @ SV400 @ SV494 )
          = SV494 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2323]) ).

thf(2446,plain,
    ! [SV542: $i,SV496: $i,SV402: $i] :
      ( ( ( ~ ( subset @ SV402 @ SV496 )
          | ~ ( subset @ SV402 @ SV542 ) )
        = $true )
      | ( ( subset @ SV402 @ ( set_intersection2 @ SV496 @ SV542 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2324]) ).

thf(2447,plain,
    ! [SV543: $i,SV497: $i,SV403: $i] :
      ( ( ( ~ ( subset @ SV403 @ SV497 )
          | ~ ( subset @ SV497 @ SV543 ) )
        = $true )
      | ( ( subset @ SV403 @ SV543 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2325]) ).

thf(2448,plain,
    ! [SV498: $i,SV404: $i] :
      ( ( ( subset @ SV404 @ SV498 )
        = $false )
      | ( ( ! [SY871: $i] : ( subset @ ( set_intersection2 @ SV404 @ SY871 ) @ ( set_intersection2 @ SV498 @ SY871 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2326]) ).

thf(2449,plain,
    ! [SV499: $i,SV405: $i] :
      ( ( ( subset @ SV405 @ SV499 )
        = $false )
      | ( ( ( set_intersection2 @ SV405 @ SV499 )
          = SV405 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2327]) ).

thf(2450,plain,
    ! [SV500: $i,SV407: $i] :
      ( ( ( subset @ SV407 @ SV500 )
        = $false )
      | ( ( ! [SY872: $i] : ( subset @ ( set_difference @ SV407 @ SY872 ) @ ( set_difference @ SV500 @ SY872 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2328]) ).

thf(2451,plain,
    ! [SV504: $i,SV412: $i] :
      ( ( ( subset @ SV412 @ SV504 )
        = $false )
      | ( ( SV504
          = ( set_union2 @ SV412 @ ( set_difference @ SV504 @ SV412 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2330]) ).

thf(2452,plain,
    ! [SV413: $i,SV505: $i] :
      ( ( ( element @ SV505 @ ( powerset @ ( powerset @ SV413 ) ) )
        = $false )
      | ( ( ( SV505 = empty_set )
          | ( ( complements_of_subsets @ SV413 @ SV505 )
           != empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2331]) ).

thf(2453,plain,
    ! [SV415: $i,SV544: $i] :
      ( ( ( ~ ( element @ SV544 @ ( powerset @ SV415 ) ) )
        = $true )
      | ( ( ! [SY901: $i] :
              ( ~ ( element @ SY901 @ SV415 )
              | ( in @ SY901 @ SV544 )
              | ( in @ SY901 @ ( subset_complement @ SV415 @ SV544 ) ) ) )
        = $true )
      | ( ( SV415 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2332]) ).

thf(2454,plain,
    ! [SV507: $i,SV416: $i,SV545: $i] :
      ( ( ( ~ ( element @ SV545 @ ( powerset @ SV416 ) ) )
        = $true )
      | ( ( ~ ( in @ SV507 @ ( subset_complement @ SV416 @ SV545 ) )
          | ~ ( in @ SV507 @ SV545 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2333]) ).

thf(2455,plain,
    ! [SV417: $i,SV508: $i] :
      ( ( ( proper_subset @ SV508 @ SV417 )
        = $false )
      | ( ( ~ ( subset @ SV417 @ SV508 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2334]) ).

thf(2456,plain,
    ! [SV418: $i,SV546: $i,SV509: $i] :
      ( ( ( ~ ( disjoint @ SV509 @ SV546 )
          | ~ ( subset @ SV418 @ SV509 ) )
        = $true )
      | ( ( disjoint @ SV418 @ SV546 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2335]) ).

thf(2457,plain,
    ! [SV510: $i,SV420: $i] :
      ( ( ( subset @ ( singleton @ SV420 ) @ ( singleton @ SV510 ) )
        = $false )
      | ( ( SV420 = SV510 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2336]) ).

thf(2458,plain,
    ! [SV547: $i,SV512: $i,SV422: $i] :
      ( ( ( ~ ( subset @ SV422 @ SV512 )
          | ~ ( subset @ SV547 @ SV512 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV422 @ SV547 ) @ SV512 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2337]) ).

thf(2459,plain,
    ! [SV556: $i,SV513: $i,SV423: $i] :
      ( ( ( ( ( singleton @ SV423 )
           != ( unordered_pair @ SV513 @ SV556 ) ) )
        = $true )
      | ( ( SV423 = SV513 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2338]) ).

thf(2460,plain,
    ! [SV548: $i,SV514: $i,SV425: $i] :
      ( ( ( ( ( singleton @ SV425 )
           != ( unordered_pair @ SV514 @ SV548 ) ) )
        = $true )
      | ( ( SV514 = SV548 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2339]) ).

thf(2461,plain,
    ! [SV429: $i,SV518: $i] :
      ( ( ( element @ SV518 @ ( powerset @ SV429 ) )
        = $false )
      | ( ( ( subset_complement @ SV429 @ SV518 )
          = ( set_difference @ SV429 @ SV518 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2340]) ).

thf(2462,plain,
    ! [SV431: $i,SV519: $i] :
      ( ( ( element @ SV519 @ ( powerset @ SV431 ) )
        = $false )
      | ( ( element @ ( subset_complement @ SV431 @ SV519 ) @ ( powerset @ SV431 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2341]) ).

thf(2463,plain,
    ! [SV432: $i,SV520: $i] :
      ( ( ( element @ SV520 @ ( powerset @ ( powerset @ SV432 ) ) )
        = $false )
      | ( ( element @ ( union_of_subsets @ SV432 @ SV520 ) @ ( powerset @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2342]) ).

thf(2464,plain,
    ! [SV433: $i,SV521: $i] :
      ( ( ( element @ SV521 @ ( powerset @ ( powerset @ SV433 ) ) )
        = $false )
      | ( ( element @ ( meet_of_subsets @ SV433 @ SV521 ) @ ( powerset @ SV433 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2343]) ).

thf(2465,plain,
    ! [SV549: $i,SV434: $i,SV522: $i] :
      ( ( ( ~ ( element @ SV522 @ ( powerset @ SV434 ) )
          | ~ ( element @ SV549 @ ( powerset @ SV434 ) ) )
        = $true )
      | ( ( element @ ( subset_difference @ SV434 @ SV522 @ SV549 ) @ ( powerset @ SV434 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2344]) ).

thf(2466,plain,
    ! [SV435: $i,SV523: $i] :
      ( ( ( element @ SV523 @ ( powerset @ ( powerset @ SV435 ) ) )
        = $false )
      | ( ( element @ ( complements_of_subsets @ SV435 @ SV523 ) @ ( powerset @ ( powerset @ SV435 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2345]) ).

thf(2467,plain,
    ! [SV550: $i,SV439: $i] :
      ( ( ( empty @ ( set_union2 @ SV439 @ SV550 ) )
        = $false )
      | ( ( empty @ SV439 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2346]) ).

thf(2468,plain,
    ! [SV441: $i,SV551: $i] :
      ( ( ( empty @ ( set_union2 @ SV551 @ SV441 ) )
        = $false )
      | ( ( empty @ SV441 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2348]) ).

thf(2469,plain,
    ! [SV444: $i,SV525: $i] :
      ( ( ( element @ SV525 @ ( powerset @ SV444 ) )
        = $false )
      | ( ( ( subset_complement @ SV444 @ ( subset_complement @ SV444 @ SV525 ) )
          = SV525 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2349]) ).

thf(2470,plain,
    ! [SV445: $i,SV526: $i] :
      ( ( ( element @ SV526 @ ( powerset @ ( powerset @ SV445 ) ) )
        = $false )
      | ( ( ( complements_of_subsets @ SV445 @ ( complements_of_subsets @ SV445 @ SV526 ) )
          = SV526 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2350]) ).

thf(2471,plain,
    ! [SV446: $i,SV527: $i] :
      ( ( ( element @ SV527 @ ( powerset @ ( powerset @ SV446 ) ) )
        = $false )
      | ( ( ( union_of_subsets @ SV446 @ SV527 )
          = ( union @ SV527 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2351]) ).

thf(2472,plain,
    ! [SV447: $i,SV528: $i] :
      ( ( ( element @ SV528 @ ( powerset @ ( powerset @ SV447 ) ) )
        = $false )
      | ( ( ( meet_of_subsets @ SV447 @ SV528 )
          = ( set_meet @ SV528 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2352]) ).

thf(2473,plain,
    ! [SV552: $i,SV448: $i,SV529: $i] :
      ( ( ( ~ ( element @ SV529 @ ( powerset @ SV448 ) )
          | ~ ( element @ SV552 @ ( powerset @ SV448 ) ) )
        = $true )
      | ( ( ( subset_difference @ SV448 @ SV529 @ SV552 )
          = ( set_difference @ SV529 @ SV552 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2353]) ).

thf(2474,plain,
    ! [SV530: $i,SV450: $i] :
      ( ( ( disjoint @ SV450 @ SV530 )
        = $false )
      | ( ( disjoint @ SV530 @ SV450 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2354]) ).

thf(2475,plain,
    ! [SV455: $i,SV553: $i,SV531: $i] :
      ( ( ( ~ ( element @ SV531 @ ( powerset @ SV553 ) )
          | ~ ( in @ SV455 @ SV531 ) )
        = $true )
      | ( ( ~ ( empty @ SV553 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2355]) ).

thf(2476,plain,
    ! [SV532: $i,SV457: $i] :
      ( ( ( SV457 = SV532 )
        = $true )
      | ( ( ~ ( empty @ SV457 ) )
        = $true )
      | ( ( ~ ( empty @ SV532 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2357]) ).

thf(2477,plain,
    ! [SV557: $i] :
      ( ( ! [SY902: $i] :
            ( ( ( set_difference @ SV557 @ SY902 )
             != empty_set )
            | ( subset @ SV557 @ SY902 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2358]) ).

thf(2478,plain,
    ! [SV558: $i] :
      ( ( ! [SY903: $i] :
            ( ~ ( subset @ SV558 @ SY903 )
            | ( ( set_difference @ SV558 @ SY903 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2359]) ).

thf(2479,plain,
    ! [SV559: $i] :
      ( ( ! [SY904: $i] :
            ( ( disjoint @ SV559 @ SY904 )
            | ( in @ ( sK39_C @ SY904 @ SV559 ) @ ( set_intersection2 @ SV559 @ SY904 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2360]) ).

thf(2480,plain,
    ! [SV560: $i] :
      ( ( ! [SY905: $i] :
            ( ! [SY906: $i] :
                ~ ( in @ SY906 @ ( set_intersection2 @ SV560 @ SY905 ) )
            | ~ ( disjoint @ SV560 @ SY905 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2361]) ).

thf(2481,plain,
    ! [SV458: $i] :
      ( ( ! [SY769: $i,SY770: $i] :
            ( ~ ( ~ ( ! [SY771: $i,SY772: $i] :
                        ( ~ ( in @ SY771 @ SV458 )
                        | ~ ( in @ SY772 @ SY769 )
                        | ( ( sK28_D @ SY770 @ SY769 @ SV458 )
                         != ( ordered_pair @ SY771 @ SY772 ) ) )
                    | ~ ( in @ ( sK28_D @ SY770 @ SY769 @ SV458 ) @ SY770 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY770 @ SY769 @ SV458 ) @ SV458 )
                              | ~ ( in @ ( sK30_SY318 @ SY770 @ SY769 @ SV458 ) @ SY769 ) )
                        | ( ( sK28_D @ SY770 @ SY769 @ SV458 )
                         != ( ordered_pair @ ( sK29_SY316 @ SY770 @ SY769 @ SV458 ) @ ( sK30_SY318 @ SY770 @ SY769 @ SV458 ) ) ) )
                    | ( in @ ( sK28_D @ SY770 @ SY769 @ SV458 ) @ SY770 ) ) )
            | ( SY770
              = ( cartesian_product2 @ SV458 @ SY769 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2362]) ).

thf(2482,plain,
    ! [SV458: $i] :
      ( ( ! [SY773: $i,SY774: $i] :
            ( ( SY774
             != ( cartesian_product2 @ SV458 @ SY773 ) )
            | ~ ( ~ ! [SY775: $i] :
                      ( ! [SY776: $i,SY777: $i] :
                          ( ~ ( in @ SY776 @ SV458 )
                          | ~ ( in @ SY777 @ SY773 )
                          | ( SY775
                           != ( ordered_pair @ SY776 @ SY777 ) ) )
                      | ( in @ SY775 @ SY774 ) )
                | ~ ! [SY778: $i] :
                      ( ~ ( in @ SY778 @ SY774 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY778 @ SY774 @ SY773 @ SV458 ) @ SV458 )
                                | ~ ( in @ ( sK27_SY313 @ SY778 @ SY774 @ SY773 @ SV458 ) @ SY773 ) )
                          | ( SY778
                           != ( ordered_pair @ ( sK26_E @ SY778 @ SY774 @ SY773 @ SV458 ) @ ( sK27_SY313 @ SY778 @ SY774 @ SY773 @ SV458 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2363]) ).

thf(2483,plain,
    ! [SV459: $i] :
      ( ( ( ~ ! [SY779: $i] :
                ( ~ ( ~ ( ! [SY780: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ SY780 ) @ SV459 )
                        | ~ ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ ( sK23_SY312 @ SY779 @ SV459 ) ) @ SV459 )
                        | ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) ) )
                | ( SY779
                  = ( relation_dom @ SV459 ) ) )
          | ~ ! [SY781: $i] :
                ( ( SY781
                 != ( relation_dom @ SV459 ) )
                | ~ ( ~ ! [SY782: $i] :
                          ( ! [SY783: $i] :
                              ~ ( in @ ( ordered_pair @ SY782 @ SY783 ) @ SV459 )
                          | ( in @ SY782 @ SY781 ) )
                    | ~ ! [SY784: $i] :
                          ( ~ ( in @ SY784 @ SY781 )
                          | ( in @ ( ordered_pair @ SY784 @ ( sK21_D @ SY784 @ SY781 @ SV459 ) ) @ SV459 ) ) ) ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2364]) ).

thf(2484,plain,
    ! [SV460: $i] :
      ( ( ! [SY785: $i] :
            ( ~ ( subset @ SY785 @ ( sK10_B @ SV460 ) )
            | ( are_equipotent @ SY785 @ ( sK10_B @ SV460 ) )
            | ( in @ SY785 @ ( sK10_B @ SV460 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2365]) ).

thf(2485,plain,
    ! [SV460: $i] :
      ( ( ~ ( ~ ! [SY786: $i] :
                  ( ~ ( ~ ! [SY787: $i] :
                            ( ~ ( subset @ SY787 @ SY786 )
                            | ( in @ SY787 @ ( sK11_SY302 @ SY786 @ SV460 ) ) )
                      | ~ ( in @ ( sK11_SY302 @ SY786 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
                  | ~ ( in @ SY786 @ ( sK10_B @ SV460 ) ) )
            | ~ ~ ( ~ ! [SY788: $i,SY789: $i] :
                        ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
                        | ~ ( subset @ SY789 @ SY788 )
                        | ( in @ SY789 @ ( sK10_B @ SV460 ) ) )
                  | ~ ( in @ SV460 @ ( sK10_B @ SV460 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2366]) ).

thf(2486,plain,
    ! [SV461: $i,SV533: $i] :
      ( ( ( ~ ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV461 )
          | ~ ~ ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV533 ) )
        = $false )
      | ( ( element @ SV461 @ ( powerset @ SV533 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2367]) ).

thf(2487,plain,
    ! [SV462: $i] :
      ( ( ! [SY791: $i] :
            ( ~ ( subset @ SY791 @ ( sK9_B @ SV462 ) )
            | ( are_equipotent @ SY791 @ ( sK9_B @ SV462 ) )
            | ( in @ SY791 @ ( sK9_B @ SV462 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2368]) ).

thf(2488,plain,
    ! [SV462: $i] :
      ( ( ~ ( ~ ! [SY792: $i] :
                  ( ~ ( in @ SY792 @ ( sK9_B @ SV462 ) )
                  | ( in @ ( powerset @ SY792 ) @ ( sK9_B @ SV462 ) ) )
            | ~ ~ ( ~ ! [SY793: $i,SY794: $i] :
                        ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
                        | ~ ( subset @ SY794 @ SY793 )
                        | ( in @ SY794 @ ( sK9_B @ SV462 ) ) )
                  | ~ ( in @ SV462 @ ( sK9_B @ SV462 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2369]) ).

thf(2489,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ~ ! [SY881: $i,SY882: $i] :
              ( ~ ( in @ SV463 @ SY881 )
              | ~ ( in @ SV534 @ SY882 )
              | ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY881 @ SY882 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2370]) ).

thf(2490,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ~ ~ ( ~ ! [SY883: $i] :
                    ( ! [SY884: $i] :
                        ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY883 @ SY884 ) )
                    | ( in @ SV463 @ SY883 ) )
              | ~ ! [SY885: $i,SY886: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY885 @ SY886 ) )
                    | ( in @ SV534 @ SY886 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2370]) ).

thf(2491,plain,
    ! [SV464: $i] :
      ( ( ! [SY802: $i,SY803: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SV464 )
                    | ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY802 )
                    | ~ ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) )
                | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SV464 )
                          | ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) )
                      | ~ ( ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY802 )
                          | ( in @ ( sK24_D @ SY803 @ SY802 @ SV464 ) @ SY803 ) ) ) )
            | ( SY803
              = ( set_intersection2 @ SV464 @ SY802 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2371]) ).

thf(2492,plain,
    ! [SV464: $i] :
      ( ( ! [SY804: $i,SY805: $i] :
            ( ( SY805
             != ( set_intersection2 @ SV464 @ SY804 ) )
            | ~ ( ~ ! [SY806: $i] :
                      ( ~ ( in @ SY806 @ SV464 )
                      | ~ ( in @ SY806 @ SY804 )
                      | ( in @ SY806 @ SY805 ) )
                | ~ ~ ( ~ ! [SY807: $i] :
                            ( ~ ( in @ SY807 @ SY805 )
                            | ( in @ SY807 @ SV464 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY805 )
                            | ( in @ SX3 @ SY804 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2372]) ).

thf(2493,plain,
    ! [SV561: $i] :
      ( ( ! [SY907: $i] :
            ( ~ ( subset @ SV561 @ ( singleton @ SY907 ) )
            | ( SV561 = empty_set )
            | ( SV561
              = ( singleton @ SY907 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2373]) ).

thf(2494,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)],[2374]) ).

thf(2495,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK36_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)],[2375]) ).

thf(2496,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)],[2376]) ).

thf(2497,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)],[2377]) ).

thf(2498,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)],[2378]) ).

thf(2499,plain,
    ! [SV562: $i] :
      ( ( ! [SY908: $i] :
            ( ~ ( in @ SV562 @ SY908 )
            | ( subset @ ( singleton @ SV562 ) @ SY908 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2379]) ).

thf(2500,plain,
    ! [SV563: $i] :
      ( ( ! [SY909: $i] :
            ( ~ ( subset @ ( singleton @ SV563 ) @ SY909 )
            | ( in @ SV563 @ SY909 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2380]) ).

thf(2501,plain,
    ! [SV564: $i] :
      ( ( ! [SY910: $i] :
            ( ( SV564 = SY910 )
            | ~ ( subset @ SV564 @ SY910 )
            | ( proper_subset @ SV564 @ SY910 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2381]) ).

thf(2502,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)],[2382]) ).

thf(2503,plain,
    ! [SV465: $i] :
      ( ( ! [SY809: $i,SY810: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SV465 )
                    | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY809 )
                    | ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) )
                | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SV465 )
                          | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) )
                      | ~ ( ~ ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY809 )
                          | ( in @ ( sK17_D @ SY810 @ SY809 @ SV465 ) @ SY810 ) ) ) )
            | ( SY810
              = ( set_difference @ SV465 @ SY809 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2383]) ).

thf(2504,plain,
    ! [SV465: $i] :
      ( ( ! [SY811: $i,SY812: $i] :
            ( ( SY812
             != ( set_difference @ SV465 @ SY811 ) )
            | ~ ( ~ ! [SY813: $i] :
                      ( ~ ( in @ SY813 @ SV465 )
                      | ( in @ SY813 @ SY811 )
                      | ( in @ SY813 @ SY812 ) )
                | ~ ~ ( ~ ! [SY814: $i] :
                            ( ~ ( in @ SY814 @ SY812 )
                            | ( in @ SY814 @ SV465 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY812 )
                            | ~ ( in @ SX3 @ SY811 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2384]) ).

thf(2505,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ~ ! [SY887: $i,SY888: $i] :
              ( ~ ( in @ SV466 @ SY887 )
              | ~ ( in @ SV535 @ SY888 )
              | ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY887 @ SY888 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2385]) ).

thf(2506,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ~ ~ ( ~ ! [SY889: $i] :
                    ( ! [SY890: $i] :
                        ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY889 @ SY890 ) )
                    | ( in @ SV466 @ SY889 ) )
              | ~ ! [SY891: $i,SY892: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY891 @ SY892 ) )
                    | ( in @ SV535 @ SY892 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2385]) ).

thf(2507,plain,
    ! [SV467: $i] :
      ( ( ! [SY823: $i] :
            ( ~ ( subset @ SV467 @ SY823 )
            | ! [SY824: $i] : ( subset @ ( cartesian_product2 @ SV467 @ SY824 ) @ ( cartesian_product2 @ SY823 @ SY824 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2386]) ).

thf(2508,plain,
    ! [SV467: $i] :
      ( ( ! [SY825: $i] :
            ( ~ ( subset @ SV467 @ SY825 )
            | ! [SY826: $i] : ( subset @ ( cartesian_product2 @ SY826 @ SV467 ) @ ( cartesian_product2 @ SY826 @ SY825 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2387]) ).

thf(2509,plain,
    ! [SV468: $i] :
      ( ( ( ~ ! [SY827: $i] :
                ( ~ ( ~ ( ! [SY828: $i] :
                            ~ ( in @ ( ordered_pair @ SY828 @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                        | ~ ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY827 @ SV468 ) @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                        | ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) ) )
                | ( SY827
                  = ( relation_rng @ SV468 ) ) )
          | ~ ! [SY829: $i] :
                ( ( SY829
                 != ( relation_rng @ SV468 ) )
                | ~ ( ~ ! [SY830: $i] :
                          ( ! [SY831: $i] :
                              ~ ( in @ ( ordered_pair @ SY831 @ SY830 ) @ SV468 )
                          | ( in @ SY830 @ SY829 ) )
                    | ~ ! [SY832: $i] :
                          ( ~ ( in @ SY832 @ SY829 )
                          | ( in @ ( ordered_pair @ ( sK14_D @ SY832 @ SY829 @ SV468 ) @ SY832 ) @ SV468 ) ) ) ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2388]) ).

thf(2510,plain,
    ! [SV565: $i] :
      ( ( ( in @ ( sK34_B @ SV565 ) @ SV565 )
        | ( SV565 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2389]) ).

thf(2511,plain,
    ! [SV566: $i] :
      ( ( ( SV566 != empty_set )
        | ! [SY911: $i] :
            ~ ( in @ SY911 @ SV566 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2390]) ).

thf(2512,plain,
    ! [SV567: $i] :
      ( ( ! [SY912: $i] :
            ( ~ ( ~ ( ( ( sK35_C @ SY912 @ SV567 )
                     != SV567 )
                    | ~ ( in @ ( sK35_C @ SY912 @ SV567 ) @ SY912 ) )
                | ~ ( ( ( sK35_C @ SY912 @ SV567 )
                      = SV567 )
                    | ( in @ ( sK35_C @ SY912 @ SV567 ) @ SY912 ) ) )
            | ( SY912
              = ( singleton @ SV567 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2391]) ).

thf(2513,plain,
    ! [SV568: $i] :
      ( ( ! [SY913: $i] :
            ( ( SY913
             != ( singleton @ SV568 ) )
            | ~ ( ~ ! [SY914: $i] :
                      ( ( SY914 != SV568 )
                      | ( in @ SY914 @ SY913 ) )
                | ~ ! [SY915: $i] :
                      ( ~ ( in @ SY915 @ SY913 )
                      | ( SY915 = SV568 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2392]) ).

thf(2514,plain,
    ! [SV569: $i] :
      ( ( ! [SY916: $i] :
            ( ~ ( ~ ( ! [SY917: $i] :
                        ( ~ ( in @ ( sK19_C @ SY916 @ SV569 ) @ SY917 )
                        | ~ ( in @ SY917 @ SV569 ) )
                    | ~ ( in @ ( sK19_C @ SY916 @ SV569 ) @ SY916 ) )
                | ~ ( ~ ( ~ ( in @ ( sK19_C @ SY916 @ SV569 ) @ ( sK20_SY310 @ SY916 @ SV569 ) )
                        | ~ ( in @ ( sK20_SY310 @ SY916 @ SV569 ) @ SV569 ) )
                    | ( in @ ( sK19_C @ SY916 @ SV569 ) @ SY916 ) ) )
            | ( SY916
              = ( union @ SV569 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2393]) ).

thf(2515,plain,
    ! [SV570: $i] :
      ( ( ! [SY918: $i] :
            ( ( SY918
             != ( union @ SV570 ) )
            | ~ ( ~ ! [SY919: $i] :
                      ( ! [SY920: $i] :
                          ( ~ ( in @ SY919 @ SY920 )
                          | ~ ( in @ SY920 @ SV570 ) )
                      | ( in @ SY919 @ SY918 ) )
                | ~ ! [SY921: $i] :
                      ( ~ ( in @ SY921 @ SY918 )
                      | ~ ( ~ ( in @ SY921 @ ( sK18_D @ SY921 @ SY918 @ SV570 ) )
                          | ~ ( in @ ( sK18_D @ SY921 @ SY918 @ SV570 ) @ SV570 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2394]) ).

thf(2516,plain,
    ! [SV571: $i] :
      ( ( ! [SY922: $i] :
            ( ~ ( subset @ SV571 @ ( singleton @ SY922 ) )
            | ( SV571 = empty_set )
            | ( SV571
              = ( singleton @ SY922 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2395]) ).

thf(2517,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)],[2396]) ).

thf(2518,plain,
    ! [SV469: $i] :
      ( ( element @ ( sK5_B @ SV469 ) @ ( powerset @ SV469 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2397]) ).

thf(2519,plain,
    ! [SV469: $i] :
      ( ( empty @ ( sK5_B @ SV469 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2398]) ).

thf(2520,plain,
    ! [SV572: $i] :
      ( ( ! [SY923: $i] :
            ( ( ( set_difference @ SV572 @ ( singleton @ SY923 ) )
             != SV572 )
            | ~ ( in @ SY923 @ SV572 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2399]) ).

thf(2521,plain,
    ! [SV573: $i] :
      ( ( ! [SY924: $i] :
            ( ( in @ SY924 @ SV573 )
            | ( ( set_difference @ SV573 @ ( singleton @ SY924 ) )
              = SV573 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2400]) ).

thf(2522,plain,
    ! [SV470: $i] :
      ( ( ! [SY833: $i,SY834: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                          | ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SV470 ) )
                      | ~ ( ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                          | ~ ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY833 ) ) )
                | ~ ( ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY834 )
                    | ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SV470 )
                    | ( in @ ( sK31_D @ SY834 @ SY833 @ SV470 ) @ SY833 ) ) )
            | ( SY834
              = ( set_union2 @ SV470 @ SY833 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2401]) ).

thf(2523,plain,
    ! [SV470: $i] :
      ( ( ! [SY835: $i,SY836: $i] :
            ( ( SY836
             != ( set_union2 @ SV470 @ SY835 ) )
            | ~ ( ~ ! [SY837: $i] :
                      ( ~ ( in @ SY837 @ SY836 )
                      | ( in @ SY837 @ SV470 )
                      | ( in @ SY837 @ SY835 ) )
                | ~ ~ ( ~ ! [SY838: $i] :
                            ( ~ ( in @ SY838 @ SV470 )
                            | ( in @ SY838 @ SY836 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY835 )
                            | ( in @ SX3 @ SY836 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2402]) ).

thf(2524,plain,
    ! [SV574: $i] :
      ( ( ! [SY925: $i] :
            ( ( ( set_difference @ SV574 @ SY925 )
             != SV574 )
            | ( disjoint @ SV574 @ SY925 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2403]) ).

thf(2525,plain,
    ! [SV575: $i] :
      ( ( ! [SY926: $i] :
            ( ~ ( disjoint @ SV575 @ SY926 )
            | ( ( set_difference @ SV575 @ SY926 )
              = SV575 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2404]) ).

thf(2526,plain,
    ! [SV471: $i,SV536: $i] :
      ( ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY893: $i] :
                    ( ~ ( element @ SY893 @ ( powerset @ SV471 ) )
                    | ~ ( disjoint @ SV536 @ SY893 )
                    | ( subset @ SV536 @ ( subset_complement @ SV471 @ SY893 ) ) )
              | ~ ! [SY894: $i] :
                    ( ~ ( element @ SY894 @ ( powerset @ SV471 ) )
                    | ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SY894 ) )
                    | ( disjoint @ SV536 @ SY894 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2405]) ).

thf(2527,plain,
    ! [SV576: $i] :
      ( ( ! [SY927: $i] :
            ( ~ ( subset @ SV576 @ SY927 )
            | ~ ( subset @ SY927 @ SV576 )
            | ( SV576 = SY927 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2406]) ).

thf(2528,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)],[2407]) ).

thf(2529,plain,
    ! [SV577: $i] :
      ( ( ! [SY928: $i] :
            ( ~ ( element @ SV577 @ ( powerset @ SY928 ) )
            | ( subset @ SV577 @ SY928 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2408]) ).

thf(2530,plain,
    ! [SV578: $i] :
      ( ( ! [SY929: $i] :
            ( ~ ( subset @ SV578 @ SY929 )
            | ( element @ SV578 @ ( powerset @ SY929 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2409]) ).

thf(2531,plain,
    ! [SV579: $i] :
      ( ( ! [SY930: $i] :
            ( ( ( set_difference @ SV579 @ SY930 )
             != empty_set )
            | ( subset @ SV579 @ SY930 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2410]) ).

thf(2532,plain,
    ! [SV580: $i] :
      ( ( ! [SY931: $i] :
            ( ~ ( subset @ SV580 @ SY931 )
            | ( ( set_difference @ SV580 @ SY931 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2411]) ).

thf(2533,plain,
    ! [SV472: $i] :
      ( ( ! [SY843: $i,SY844: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                          | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                           != SV472 ) )
                      | ~ ( ~ ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                          | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                           != SY843 ) ) )
                | ~ ( ( in @ ( sK32_D @ SY844 @ SY843 @ SV472 ) @ SY844 )
                    | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                      = SV472 )
                    | ( ( sK32_D @ SY844 @ SY843 @ SV472 )
                      = SY843 ) ) )
            | ( SY844
              = ( unordered_pair @ SV472 @ SY843 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2412]) ).

thf(2534,plain,
    ! [SV472: $i] :
      ( ( ! [SY845: $i,SY846: $i] :
            ( ( SY846
             != ( unordered_pair @ SV472 @ SY845 ) )
            | ~ ( ~ ! [SY847: $i] :
                      ( ~ ( in @ SY847 @ SY846 )
                      | ( SY847 = SV472 )
                      | ( SY847 = SY845 ) )
                | ~ ~ ( ~ ! [SY848: $i] :
                            ( ( SY848 != SV472 )
                            | ( in @ SY848 @ SY846 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY845 )
                            | ( in @ SX3 @ SY846 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2413]) ).

thf(2535,plain,
    ! [SV581: $i] :
      ( ( ! [SY932: $i] :
            ( ( ( set_intersection2 @ SV581 @ SY932 )
             != empty_set )
            | ( disjoint @ SV581 @ SY932 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2414]) ).

thf(2536,plain,
    ! [SV582: $i] :
      ( ( ! [SY933: $i] :
            ( ~ ( disjoint @ SV582 @ SY933 )
            | ( ( set_intersection2 @ SV582 @ SY933 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2415]) ).

thf(2537,plain,
    ! [SV583: $i] :
      ( ( ! [SY934: $i] :
            ( ( disjoint @ SV583 @ SY934 )
            | ~ ( ~ ( in @ ( sK40_C @ SY934 @ SV583 ) @ SV583 )
                | ~ ( in @ ( sK40_C @ SY934 @ SV583 ) @ SY934 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2416]) ).

thf(2538,plain,
    ! [SV584: $i] :
      ( ( ! [SY935: $i] :
            ( ! [SY936: $i] :
                ( ~ ( in @ SY936 @ SV584 )
                | ~ ( in @ SY936 @ SY935 ) )
            | ~ ( disjoint @ SV584 @ SY935 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2417]) ).

thf(2539,plain,
    ! [SV585: $i] :
      ( ( ! [SY937: $i] :
            ( ~ ( ~ ( in @ ( sK25_C @ SY937 @ SV585 ) @ SV585 )
                | ~ ~ ( in @ ( sK25_C @ SY937 @ SV585 ) @ SY937 ) )
            | ( subset @ SV585 @ SY937 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2418]) ).

thf(2540,plain,
    ! [SV586: $i] :
      ( ( ! [SY938: $i] :
            ( ~ ( subset @ SV586 @ SY938 )
            | ! [SY939: $i] :
                ( ~ ( in @ SY939 @ SV586 )
                | ( in @ SY939 @ SY938 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2419]) ).

thf(2541,plain,
    ! [SV587: $i] :
      ( ( ! [SY940: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SY940 @ SV587 ) @ SY940 )
                    | ~ ( subset @ ( sK33_C @ SY940 @ SV587 ) @ SV587 ) )
                | ~ ( ( in @ ( sK33_C @ SY940 @ SV587 ) @ SY940 )
                    | ( subset @ ( sK33_C @ SY940 @ SV587 ) @ SV587 ) ) )
            | ( SY940
              = ( powerset @ SV587 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2420]) ).

thf(2542,plain,
    ! [SV588: $i] :
      ( ( ! [SY941: $i] :
            ( ( SY941
             != ( powerset @ SV588 ) )
            | ~ ( ~ ! [SY942: $i] :
                      ( ~ ( in @ SY942 @ SY941 )
                      | ( subset @ SY942 @ SV588 ) )
                | ~ ! [SY943: $i] :
                      ( ~ ( subset @ SY943 @ SV588 )
                      | ( in @ SY943 @ SY941 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2421]) ).

thf(2543,plain,
    ! [SV537: $i,SV473: $i] :
      ( ( ~ ! [SY895: $i] :
              ( ! [SY896: $i] :
                  ( ( ordered_pair @ SV473 @ SV537 )
                 != ( ordered_pair @ SY895 @ SY896 ) )
              | ( SV473 = SY895 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2422]) ).

thf(2544,plain,
    ! [SV537: $i,SV473: $i] :
      ( ( ~ ! [SY897: $i,SY898: $i] :
              ( ( ( ordered_pair @ SV473 @ SV537 )
               != ( ordered_pair @ SY897 @ SY898 ) )
              | ( SV537 = SY898 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2422]) ).

thf(2545,plain,
    ! [SV474: $i] :
      ( ( ( ~ ( element @ ( sK7_B @ SV474 ) @ ( powerset @ SV474 ) ) )
        = $false )
      | ( ( empty @ SV474 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2423]) ).

thf(2546,plain,
    ! [SV474: $i] :
      ( ( ( ~ ~ ( empty @ ( sK7_B @ SV474 ) ) )
        = $false )
      | ( ( empty @ SV474 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2423]) ).

thf(2547,plain,
    ! [SV589: $i] :
      ( ( ! [SY944: $i] :
            ( ~ ( in @ SV589 @ SY944 )
            | ( subset @ ( singleton @ SV589 ) @ SY944 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2424]) ).

thf(2548,plain,
    ! [SV590: $i] :
      ( ( ! [SY945: $i] :
            ( ~ ( subset @ ( singleton @ SV590 ) @ SY945 )
            | ( in @ SV590 @ SY945 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2425]) ).

thf(2549,plain,
    ! [SV475: $i] :
      ( ( ! [SY855: $i,SY856: $i] :
            ( ~ ( in @ SV475 @ SY856 )
            | ~ ( in @ SY855 @ SY856 )
            | ( subset @ ( unordered_pair @ SV475 @ SY855 ) @ SY856 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2426]) ).

thf(2550,plain,
    ! [SV475: $i] :
      ( ( ~ ( ~ ! [SY857: $i,SY858: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV475 @ SY857 ) @ SY858 )
                  | ( in @ SV475 @ SY858 ) )
            | ~ ! [SY859: $i,SY860: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV475 @ SY859 ) @ SY860 )
                  | ( in @ SY859 @ SY860 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2427]) ).

thf(2551,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
              | ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) )
          | ~ ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
              | ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) ) )
        = $false )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2428]) ).

thf(2552,plain,
    ! [SV478: $i,SV383: $i] :
      ( ( ( in @ SV383 @ SV478 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV383 ) @ SV478 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2432]) ).

thf(2553,plain,
    ! [SV385: $i,SV480: $i,SV591: $i] :
      ( ( ( ~ ( in @ SV591 @ SV480 )
          | ( in @ SV591 @ SV385 ) )
        = $true )
      | ( ( element @ SV480 @ ( powerset @ SV385 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2433]) ).

thf(2554,plain,
    ! [SV389: $i,SV484: $i] :
      ( ( ( in @ SV484 @ SV389 )
        = $false )
      | ( ( in @ SV389 @ SV484 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2437]) ).

thf(2555,plain,
    ! [SV393: $i,SV488: $i] :
      ( ( ( empty @ SV488 )
        = $true )
      | ( ( in @ SV393 @ SV488 )
        = $true )
      | ( ( element @ SV393 @ SV488 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2439]) ).

thf(2556,plain,
    ! [SV394: $i,SV539: $i,SV489: $i] :
      ( ( ( ~ ( element @ SV489 @ ( powerset @ SV539 ) ) )
        = $true )
      | ( ( ~ ( in @ SV394 @ SV489 ) )
        = $true )
      | ( ( element @ SV394 @ SV539 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2440]) ).

thf(2557,plain,
    ! [SV490: $i,SV395: $i] :
      ( ( ( in @ SV395 @ SV490 )
        = $false )
      | ( ( empty @ SV490 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2441]) ).

thf(2558,plain,
    ! [SV491: $i,SV397: $i,SV592: $i] :
      ( ( ( ( in @ SV592 @ SV397 )
          | ( subset @ SV397 @ ( set_difference @ SV491 @ ( singleton @ SV592 ) ) ) )
        = $true )
      | ( ( subset @ SV397 @ SV491 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2442]) ).

thf(2559,plain,
    ! [SV492: $i,SV540: $i,SV554: $i,SV398: $i] :
      ( ( ( SV398 = SV554 )
        = $true )
      | ( ( ( SV398 = SV540 )
          | ( ( unordered_pair @ SV398 @ SV492 )
           != ( unordered_pair @ SV540 @ SV554 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2443]) ).

thf(2560,plain,
    ! [SV555: $i,SV541: $i,SV493: $i,SV399: $i] :
      ( ( ( ~ ( subset @ SV399 @ SV493 )
          | ~ ( subset @ SV541 @ SV555 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV399 @ SV541 ) @ ( cartesian_product2 @ SV493 @ SV555 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2444]) ).

thf(2561,plain,
    ! [SV542: $i,SV496: $i,SV402: $i] :
      ( ( ( ~ ( subset @ SV402 @ SV496 ) )
        = $true )
      | ( ( ~ ( subset @ SV402 @ SV542 ) )
        = $true )
      | ( ( subset @ SV402 @ ( set_intersection2 @ SV496 @ SV542 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2446]) ).

thf(2562,plain,
    ! [SV543: $i,SV497: $i,SV403: $i] :
      ( ( ( ~ ( subset @ SV403 @ SV497 ) )
        = $true )
      | ( ( ~ ( subset @ SV497 @ SV543 ) )
        = $true )
      | ( ( subset @ SV403 @ SV543 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2447]) ).

thf(2563,plain,
    ! [SV498: $i,SV593: $i,SV404: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV404 @ SV593 ) @ ( set_intersection2 @ SV498 @ SV593 ) )
        = $true )
      | ( ( subset @ SV404 @ SV498 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2448]) ).

thf(2564,plain,
    ! [SV500: $i,SV594: $i,SV407: $i] :
      ( ( ( subset @ ( set_difference @ SV407 @ SV594 ) @ ( set_difference @ SV500 @ SV594 ) )
        = $true )
      | ( ( subset @ SV407 @ SV500 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2450]) ).

thf(2565,plain,
    ! [SV413: $i,SV505: $i] :
      ( ( ( SV505 = empty_set )
        = $true )
      | ( ( ( ( complements_of_subsets @ SV413 @ SV505 )
           != empty_set ) )
        = $true )
      | ( ( element @ SV505 @ ( powerset @ ( powerset @ SV413 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2452]) ).

thf(2566,plain,
    ! [SV415: $i,SV544: $i] :
      ( ( ( element @ SV544 @ ( powerset @ SV415 ) )
        = $false )
      | ( ( ! [SY901: $i] :
              ( ~ ( element @ SY901 @ SV415 )
              | ( in @ SY901 @ SV544 )
              | ( in @ SY901 @ ( subset_complement @ SV415 @ SV544 ) ) ) )
        = $true )
      | ( ( SV415 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2453]) ).

thf(2567,plain,
    ! [SV507: $i,SV416: $i,SV545: $i] :
      ( ( ( element @ SV545 @ ( powerset @ SV416 ) )
        = $false )
      | ( ( ~ ( in @ SV507 @ ( subset_complement @ SV416 @ SV545 ) )
          | ~ ( in @ SV507 @ SV545 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2454]) ).

thf(2568,plain,
    ! [SV508: $i,SV417: $i] :
      ( ( ( subset @ SV417 @ SV508 )
        = $false )
      | ( ( proper_subset @ SV508 @ SV417 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2455]) ).

thf(2569,plain,
    ! [SV418: $i,SV546: $i,SV509: $i] :
      ( ( ( ~ ( disjoint @ SV509 @ SV546 ) )
        = $true )
      | ( ( ~ ( subset @ SV418 @ SV509 ) )
        = $true )
      | ( ( disjoint @ SV418 @ SV546 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2456]) ).

thf(2570,plain,
    ! [SV547: $i,SV512: $i,SV422: $i] :
      ( ( ( ~ ( subset @ SV422 @ SV512 ) )
        = $true )
      | ( ( ~ ( subset @ SV547 @ SV512 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV422 @ SV547 ) @ SV512 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2458]) ).

thf(2571,plain,
    ! [SV556: $i,SV513: $i,SV423: $i] :
      ( ( ( ( singleton @ SV423 )
          = ( unordered_pair @ SV513 @ SV556 ) )
        = $false )
      | ( ( SV423 = SV513 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2459]) ).

thf(2572,plain,
    ! [SV548: $i,SV514: $i,SV425: $i] :
      ( ( ( ( singleton @ SV425 )
          = ( unordered_pair @ SV514 @ SV548 ) )
        = $false )
      | ( ( SV514 = SV548 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2460]) ).

thf(2573,plain,
    ! [SV549: $i,SV434: $i,SV522: $i] :
      ( ( ( ~ ( element @ SV522 @ ( powerset @ SV434 ) ) )
        = $true )
      | ( ( ~ ( element @ SV549 @ ( powerset @ SV434 ) ) )
        = $true )
      | ( ( element @ ( subset_difference @ SV434 @ SV522 @ SV549 ) @ ( powerset @ SV434 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2465]) ).

thf(2574,plain,
    ! [SV552: $i,SV448: $i,SV529: $i] :
      ( ( ( ~ ( element @ SV529 @ ( powerset @ SV448 ) ) )
        = $true )
      | ( ( ~ ( element @ SV552 @ ( powerset @ SV448 ) ) )
        = $true )
      | ( ( ( subset_difference @ SV448 @ SV529 @ SV552 )
          = ( set_difference @ SV529 @ SV552 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2473]) ).

thf(2575,plain,
    ! [SV455: $i,SV553: $i,SV531: $i] :
      ( ( ( ~ ( element @ SV531 @ ( powerset @ SV553 ) ) )
        = $true )
      | ( ( ~ ( in @ SV455 @ SV531 ) )
        = $true )
      | ( ( ~ ( empty @ SV553 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2475]) ).

thf(2576,plain,
    ! [SV532: $i,SV457: $i] :
      ( ( ( empty @ SV457 )
        = $false )
      | ( ( SV457 = SV532 )
        = $true )
      | ( ( ~ ( empty @ SV532 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2476]) ).

thf(2577,plain,
    ! [SV595: $i,SV557: $i] :
      ( ( ( ( set_difference @ SV557 @ SV595 )
         != empty_set )
        | ( subset @ SV557 @ SV595 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2477]) ).

thf(2578,plain,
    ! [SV596: $i,SV558: $i] :
      ( ( ~ ( subset @ SV558 @ SV596 )
        | ( ( set_difference @ SV558 @ SV596 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2478]) ).

thf(2579,plain,
    ! [SV597: $i,SV559: $i] :
      ( ( ( disjoint @ SV559 @ SV597 )
        | ( in @ ( sK39_C @ SV597 @ SV559 ) @ ( set_intersection2 @ SV559 @ SV597 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2479]) ).

thf(2580,plain,
    ! [SV598: $i,SV560: $i] :
      ( ( ! [SY946: $i] :
            ~ ( in @ SY946 @ ( set_intersection2 @ SV560 @ SV598 ) )
        | ~ ( disjoint @ SV560 @ SV598 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2480]) ).

thf(2581,plain,
    ! [SV599: $i,SV458: $i] :
      ( ( ! [SY947: $i] :
            ( ~ ( ~ ( ! [SY948: $i,SY949: $i] :
                        ( ~ ( in @ SY948 @ SV458 )
                        | ~ ( in @ SY949 @ SV599 )
                        | ( ( sK28_D @ SY947 @ SV599 @ SV458 )
                         != ( ordered_pair @ SY948 @ SY949 ) ) )
                    | ~ ( in @ ( sK28_D @ SY947 @ SV599 @ SV458 ) @ SY947 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SY947 @ SV599 @ SV458 ) @ SV458 )
                              | ~ ( in @ ( sK30_SY318 @ SY947 @ SV599 @ SV458 ) @ SV599 ) )
                        | ( ( sK28_D @ SY947 @ SV599 @ SV458 )
                         != ( ordered_pair @ ( sK29_SY316 @ SY947 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SY947 @ SV599 @ SV458 ) ) ) )
                    | ( in @ ( sK28_D @ SY947 @ SV599 @ SV458 ) @ SY947 ) ) )
            | ( SY947
              = ( cartesian_product2 @ SV458 @ SV599 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2481]) ).

thf(2582,plain,
    ! [SV600: $i,SV458: $i] :
      ( ( ! [SY950: $i] :
            ( ( SY950
             != ( cartesian_product2 @ SV458 @ SV600 ) )
            | ~ ( ~ ! [SY951: $i] :
                      ( ! [SY952: $i,SY953: $i] :
                          ( ~ ( in @ SY952 @ SV458 )
                          | ~ ( in @ SY953 @ SV600 )
                          | ( SY951
                           != ( ordered_pair @ SY952 @ SY953 ) ) )
                      | ( in @ SY951 @ SY950 ) )
                | ~ ! [SY954: $i] :
                      ( ~ ( in @ SY954 @ SY950 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY954 @ SY950 @ SV600 @ SV458 ) @ SV458 )
                                | ~ ( in @ ( sK27_SY313 @ SY954 @ SY950 @ SV600 @ SV458 ) @ SV600 ) )
                          | ( SY954
                           != ( ordered_pair @ ( sK26_E @ SY954 @ SY950 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SY954 @ SY950 @ SV600 @ SV458 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2482]) ).

thf(2583,plain,
    ! [SV459: $i] :
      ( ( ( ~ ! [SY779: $i] :
                ( ~ ( ~ ( ! [SY780: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ SY780 ) @ SV459 )
                        | ~ ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ ( sK23_SY312 @ SY779 @ SV459 ) ) @ SV459 )
                        | ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) ) )
                | ( SY779
                  = ( relation_dom @ SV459 ) ) ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2483]) ).

thf(2584,plain,
    ! [SV459: $i] :
      ( ( ( ~ ! [SY781: $i] :
                ( ( SY781
                 != ( relation_dom @ SV459 ) )
                | ~ ( ~ ! [SY782: $i] :
                          ( ! [SY783: $i] :
                              ~ ( in @ ( ordered_pair @ SY782 @ SY783 ) @ SV459 )
                          | ( in @ SY782 @ SY781 ) )
                    | ~ ! [SY784: $i] :
                          ( ~ ( in @ SY784 @ SY781 )
                          | ( in @ ( ordered_pair @ SY784 @ ( sK21_D @ SY784 @ SY781 @ SV459 ) ) @ SV459 ) ) ) ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2483]) ).

thf(2585,plain,
    ! [SV460: $i,SV601: $i] :
      ( ( ~ ( subset @ SV601 @ ( sK10_B @ SV460 ) )
        | ( are_equipotent @ SV601 @ ( sK10_B @ SV460 ) )
        | ( in @ SV601 @ ( sK10_B @ SV460 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2484]) ).

thf(2586,plain,
    ! [SV460: $i] :
      ( ( ~ ! [SY786: $i] :
              ( ~ ( ~ ! [SY787: $i] :
                        ( ~ ( subset @ SY787 @ SY786 )
                        | ( in @ SY787 @ ( sK11_SY302 @ SY786 @ SV460 ) ) )
                  | ~ ( in @ ( sK11_SY302 @ SY786 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
              | ~ ( in @ SY786 @ ( sK10_B @ SV460 ) ) )
        | ~ ~ ( ~ ! [SY788: $i,SY789: $i] :
                    ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
                    | ~ ( subset @ SY789 @ SY788 )
                    | ( in @ SY789 @ ( sK10_B @ SV460 ) ) )
              | ~ ( in @ SV460 @ ( sK10_B @ SV460 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2485]) ).

thf(2587,plain,
    ! [SV461: $i,SV533: $i] :
      ( ( ( ~ ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV461 ) )
        = $false )
      | ( ( element @ SV461 @ ( powerset @ SV533 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2486]) ).

thf(2588,plain,
    ! [SV461: $i,SV533: $i] :
      ( ( ( ~ ~ ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV533 ) )
        = $false )
      | ( ( element @ SV461 @ ( powerset @ SV533 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2486]) ).

thf(2589,plain,
    ! [SV462: $i,SV602: $i] :
      ( ( ~ ( subset @ SV602 @ ( sK9_B @ SV462 ) )
        | ( are_equipotent @ SV602 @ ( sK9_B @ SV462 ) )
        | ( in @ SV602 @ ( sK9_B @ SV462 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2487]) ).

thf(2590,plain,
    ! [SV462: $i] :
      ( ( ~ ! [SY792: $i] :
              ( ~ ( in @ SY792 @ ( sK9_B @ SV462 ) )
              | ( in @ ( powerset @ SY792 ) @ ( sK9_B @ SV462 ) ) )
        | ~ ~ ( ~ ! [SY793: $i,SY794: $i] :
                    ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
                    | ~ ( subset @ SY794 @ SY793 )
                    | ( in @ SY794 @ ( sK9_B @ SV462 ) ) )
              | ~ ( in @ SV462 @ ( sK9_B @ SV462 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2488]) ).

thf(2591,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ! [SY881: $i,SY882: $i] :
            ( ~ ( in @ SV463 @ SY881 )
            | ~ ( in @ SV534 @ SY882 )
            | ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY881 @ SY882 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2489]) ).

thf(2592,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ~ ( ~ ! [SY883: $i] :
                  ( ! [SY884: $i] :
                      ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY883 @ SY884 ) )
                  | ( in @ SV463 @ SY883 ) )
            | ~ ! [SY885: $i,SY886: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY885 @ SY886 ) )
                  | ( in @ SV534 @ SY886 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2490]) ).

thf(2593,plain,
    ! [SV464: $i,SV603: $i] :
      ( ( ! [SY955: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SY955 @ SV603 @ SV464 ) @ SV464 )
                    | ~ ( in @ ( sK24_D @ SY955 @ SV603 @ SV464 ) @ SV603 )
                    | ~ ( in @ ( sK24_D @ SY955 @ SV603 @ SV464 ) @ SY955 ) )
                | ~ ~ ( ~ ( ( in @ ( sK24_D @ SY955 @ SV603 @ SV464 ) @ SV464 )
                          | ( in @ ( sK24_D @ SY955 @ SV603 @ SV464 ) @ SY955 ) )
                      | ~ ( ( in @ ( sK24_D @ SY955 @ SV603 @ SV464 ) @ SV603 )
                          | ( in @ ( sK24_D @ SY955 @ SV603 @ SV464 ) @ SY955 ) ) ) )
            | ( SY955
              = ( set_intersection2 @ SV464 @ SV603 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2491]) ).

thf(2594,plain,
    ! [SV604: $i,SV464: $i] :
      ( ( ! [SY956: $i] :
            ( ( SY956
             != ( set_intersection2 @ SV464 @ SV604 ) )
            | ~ ( ~ ! [SY957: $i] :
                      ( ~ ( in @ SY957 @ SV464 )
                      | ~ ( in @ SY957 @ SV604 )
                      | ( in @ SY957 @ SY956 ) )
                | ~ ~ ( ~ ! [SY807: $i] :
                            ( ~ ( in @ SY807 @ SY956 )
                            | ( in @ SY807 @ SV464 ) )
                      | ~ ! [SY959: $i] :
                            ( ~ ( in @ SY959 @ SY956 )
                            | ( in @ SY959 @ SV604 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2492]) ).

thf(2595,plain,
    ! [SV605: $i,SV561: $i] :
      ( ( ~ ( subset @ SV561 @ ( singleton @ SV605 ) )
        | ( SV561 = empty_set )
        | ( SV561
          = ( singleton @ SV605 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2493]) ).

thf(2596,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2494]) ).

thf(2597,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2494]) ).

thf(2598,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2495]) ).

thf(2599,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK36_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)],[2495]) ).

thf(2600,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2496]) ).

thf(2601,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2496]) ).

thf(2602,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2497]) ).

thf(2603,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2497]) ).

thf(2604,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2498]) ).

thf(2605,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2498]) ).

thf(2606,plain,
    ! [SV606: $i,SV562: $i] :
      ( ( ~ ( in @ SV562 @ SV606 )
        | ( subset @ ( singleton @ SV562 ) @ SV606 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2499]) ).

thf(2607,plain,
    ! [SV607: $i,SV563: $i] :
      ( ( ~ ( subset @ ( singleton @ SV563 ) @ SV607 )
        | ( in @ SV563 @ SV607 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2500]) ).

thf(2608,plain,
    ! [SV608: $i,SV564: $i] :
      ( ( ( SV564 = SV608 )
        | ~ ( subset @ SV564 @ SV608 )
        | ( proper_subset @ SV564 @ SV608 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2501]) ).

thf(2609,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2502]) ).

thf(2610,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2502]) ).

thf(2611,plain,
    ! [SV465: $i,SV609: $i] :
      ( ( ! [SY960: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SY960 @ SV609 @ SV465 ) @ SV465 )
                    | ( in @ ( sK17_D @ SY960 @ SV609 @ SV465 ) @ SV609 )
                    | ~ ( in @ ( sK17_D @ SY960 @ SV609 @ SV465 ) @ SY960 ) )
                | ~ ~ ( ~ ( ( in @ ( sK17_D @ SY960 @ SV609 @ SV465 ) @ SV465 )
                          | ( in @ ( sK17_D @ SY960 @ SV609 @ SV465 ) @ SY960 ) )
                      | ~ ( ~ ( in @ ( sK17_D @ SY960 @ SV609 @ SV465 ) @ SV609 )
                          | ( in @ ( sK17_D @ SY960 @ SV609 @ SV465 ) @ SY960 ) ) ) )
            | ( SY960
              = ( set_difference @ SV465 @ SV609 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2503]) ).

thf(2612,plain,
    ! [SV610: $i,SV465: $i] :
      ( ( ! [SY961: $i] :
            ( ( SY961
             != ( set_difference @ SV465 @ SV610 ) )
            | ~ ( ~ ! [SY962: $i] :
                      ( ~ ( in @ SY962 @ SV465 )
                      | ( in @ SY962 @ SV610 )
                      | ( in @ SY962 @ SY961 ) )
                | ~ ~ ( ~ ! [SY814: $i] :
                            ( ~ ( in @ SY814 @ SY961 )
                            | ( in @ SY814 @ SV465 ) )
                      | ~ ! [SY964: $i] :
                            ( ~ ( in @ SY964 @ SY961 )
                            | ~ ( in @ SY964 @ SV610 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2504]) ).

thf(2613,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ! [SY887: $i,SY888: $i] :
            ( ~ ( in @ SV466 @ SY887 )
            | ~ ( in @ SV535 @ SY888 )
            | ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY887 @ SY888 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2505]) ).

thf(2614,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ~ ( ~ ! [SY889: $i] :
                  ( ! [SY890: $i] :
                      ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY889 @ SY890 ) )
                  | ( in @ SV466 @ SY889 ) )
            | ~ ! [SY891: $i,SY892: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY891 @ SY892 ) )
                  | ( in @ SV535 @ SY892 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2506]) ).

thf(2615,plain,
    ! [SV611: $i,SV467: $i] :
      ( ( ~ ( subset @ SV467 @ SV611 )
        | ! [SY965: $i] : ( subset @ ( cartesian_product2 @ SV467 @ SY965 ) @ ( cartesian_product2 @ SV611 @ SY965 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2507]) ).

thf(2616,plain,
    ! [SV612: $i,SV467: $i] :
      ( ( ~ ( subset @ SV467 @ SV612 )
        | ! [SY966: $i] : ( subset @ ( cartesian_product2 @ SY966 @ SV467 ) @ ( cartesian_product2 @ SY966 @ SV612 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2508]) ).

thf(2617,plain,
    ! [SV468: $i] :
      ( ( ( ~ ! [SY827: $i] :
                ( ~ ( ~ ( ! [SY828: $i] :
                            ~ ( in @ ( ordered_pair @ SY828 @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                        | ~ ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY827 @ SV468 ) @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                        | ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) ) )
                | ( SY827
                  = ( relation_rng @ SV468 ) ) ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2509]) ).

thf(2618,plain,
    ! [SV468: $i] :
      ( ( ( ~ ! [SY829: $i] :
                ( ( SY829
                 != ( relation_rng @ SV468 ) )
                | ~ ( ~ ! [SY830: $i] :
                          ( ! [SY831: $i] :
                              ~ ( in @ ( ordered_pair @ SY831 @ SY830 ) @ SV468 )
                          | ( in @ SY830 @ SY829 ) )
                    | ~ ! [SY832: $i] :
                          ( ~ ( in @ SY832 @ SY829 )
                          | ( in @ ( ordered_pair @ ( sK14_D @ SY832 @ SY829 @ SV468 ) @ SY832 ) @ SV468 ) ) ) ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2509]) ).

thf(2619,plain,
    ! [SV565: $i] :
      ( ( ( in @ ( sK34_B @ SV565 ) @ SV565 )
        = $true )
      | ( ( SV565 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2510]) ).

thf(2620,plain,
    ! [SV566: $i] :
      ( ( ( ( SV566 != empty_set ) )
        = $true )
      | ( ( ! [SY911: $i] :
              ~ ( in @ SY911 @ SV566 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2511]) ).

thf(2621,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ~ ( ~ ( ( ( sK35_C @ SV613 @ SV567 )
                 != SV567 )
                | ~ ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) )
            | ~ ( ( ( sK35_C @ SV613 @ SV567 )
                  = SV567 )
                | ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) ) )
        | ( SV613
          = ( singleton @ SV567 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2512]) ).

thf(2622,plain,
    ! [SV568: $i,SV614: $i] :
      ( ( ( SV614
         != ( singleton @ SV568 ) )
        | ~ ( ~ ! [SY967: $i] :
                  ( ( SY967 != SV568 )
                  | ( in @ SY967 @ SV614 ) )
            | ~ ! [SY968: $i] :
                  ( ~ ( in @ SY968 @ SV614 )
                  | ( SY968 = SV568 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2513]) ).

thf(2623,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ~ ( ~ ( ! [SY969: $i] :
                    ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SY969 )
                    | ~ ( in @ SY969 @ SV569 ) )
                | ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
            | ~ ( ~ ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ ( sK20_SY310 @ SV615 @ SV569 ) )
                    | ~ ( in @ ( sK20_SY310 @ SV615 @ SV569 ) @ SV569 ) )
                | ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) ) )
        | ( SV615
          = ( union @ SV569 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2514]) ).

thf(2624,plain,
    ! [SV570: $i,SV616: $i] :
      ( ( ( SV616
         != ( union @ SV570 ) )
        | ~ ( ~ ! [SY970: $i] :
                  ( ! [SY920: $i] :
                      ( ~ ( in @ SY970 @ SY920 )
                      | ~ ( in @ SY920 @ SV570 ) )
                  | ( in @ SY970 @ SV616 ) )
            | ~ ! [SY972: $i] :
                  ( ~ ( in @ SY972 @ SV616 )
                  | ~ ( ~ ( in @ SY972 @ ( sK18_D @ SY972 @ SV616 @ SV570 ) )
                      | ~ ( in @ ( sK18_D @ SY972 @ SV616 @ SV570 ) @ SV570 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2515]) ).

thf(2625,plain,
    ! [SV617: $i,SV571: $i] :
      ( ( ~ ( subset @ SV571 @ ( singleton @ SV617 ) )
        | ( SV571 = empty_set )
        | ( SV571
          = ( singleton @ SV617 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2516]) ).

thf(2626,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2517]) ).

thf(2627,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2517]) ).

thf(2628,plain,
    ! [SV618: $i,SV572: $i] :
      ( ( ( ( set_difference @ SV572 @ ( singleton @ SV618 ) )
         != SV572 )
        | ~ ( in @ SV618 @ SV572 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2520]) ).

thf(2629,plain,
    ! [SV573: $i,SV619: $i] :
      ( ( ( in @ SV619 @ SV573 )
        | ( ( set_difference @ SV573 @ ( singleton @ SV619 ) )
          = SV573 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2521]) ).

thf(2630,plain,
    ! [SV470: $i,SV620: $i] :
      ( ( ! [SY973: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SY973 @ SV620 @ SV470 ) @ SY973 )
                          | ~ ( in @ ( sK31_D @ SY973 @ SV620 @ SV470 ) @ SV470 ) )
                      | ~ ( ~ ( in @ ( sK31_D @ SY973 @ SV620 @ SV470 ) @ SY973 )
                          | ~ ( in @ ( sK31_D @ SY973 @ SV620 @ SV470 ) @ SV620 ) ) )
                | ~ ( ( in @ ( sK31_D @ SY973 @ SV620 @ SV470 ) @ SY973 )
                    | ( in @ ( sK31_D @ SY973 @ SV620 @ SV470 ) @ SV470 )
                    | ( in @ ( sK31_D @ SY973 @ SV620 @ SV470 ) @ SV620 ) ) )
            | ( SY973
              = ( set_union2 @ SV470 @ SV620 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2522]) ).

thf(2631,plain,
    ! [SV621: $i,SV470: $i] :
      ( ( ! [SY974: $i] :
            ( ( SY974
             != ( set_union2 @ SV470 @ SV621 ) )
            | ~ ( ~ ! [SY975: $i] :
                      ( ~ ( in @ SY975 @ SY974 )
                      | ( in @ SY975 @ SV470 )
                      | ( in @ SY975 @ SV621 ) )
                | ~ ~ ( ~ ! [SY838: $i] :
                            ( ~ ( in @ SY838 @ SV470 )
                            | ( in @ SY838 @ SY974 ) )
                      | ~ ! [SY977: $i] :
                            ( ~ ( in @ SY977 @ SV621 )
                            | ( in @ SY977 @ SY974 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2523]) ).

thf(2632,plain,
    ! [SV622: $i,SV574: $i] :
      ( ( ( ( set_difference @ SV574 @ SV622 )
         != SV574 )
        | ( disjoint @ SV574 @ SV622 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2524]) ).

thf(2633,plain,
    ! [SV623: $i,SV575: $i] :
      ( ( ~ ( disjoint @ SV575 @ SV623 )
        | ( ( set_difference @ SV575 @ SV623 )
          = SV575 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2525]) ).

thf(2634,plain,
    ! [SV536: $i,SV471: $i] :
      ( ( ( ~ ! [SY893: $i] :
                ( ~ ( element @ SY893 @ ( powerset @ SV471 ) )
                | ~ ( disjoint @ SV536 @ SY893 )
                | ( subset @ SV536 @ ( subset_complement @ SV471 @ SY893 ) ) )
          | ~ ! [SY894: $i] :
                ( ~ ( element @ SY894 @ ( powerset @ SV471 ) )
                | ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SY894 ) )
                | ( disjoint @ SV536 @ SY894 ) ) )
        = $false )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2526]) ).

thf(2635,plain,
    ! [SV624: $i,SV576: $i] :
      ( ( ~ ( subset @ SV576 @ SV624 )
        | ~ ( subset @ SV624 @ SV576 )
        | ( SV576 = SV624 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2527]) ).

thf(2636,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2528]) ).

thf(2637,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[2528]) ).

thf(2638,plain,
    ! [SV625: $i,SV577: $i] :
      ( ( ~ ( element @ SV577 @ ( powerset @ SV625 ) )
        | ( subset @ SV577 @ SV625 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2529]) ).

thf(2639,plain,
    ! [SV626: $i,SV578: $i] :
      ( ( ~ ( subset @ SV578 @ SV626 )
        | ( element @ SV578 @ ( powerset @ SV626 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2530]) ).

thf(2640,plain,
    ! [SV627: $i,SV579: $i] :
      ( ( ( ( set_difference @ SV579 @ SV627 )
         != empty_set )
        | ( subset @ SV579 @ SV627 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2531]) ).

thf(2641,plain,
    ! [SV628: $i,SV580: $i] :
      ( ( ~ ( subset @ SV580 @ SV628 )
        | ( ( set_difference @ SV580 @ SV628 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2532]) ).

thf(2642,plain,
    ! [SV472: $i,SV629: $i] :
      ( ( ! [SY978: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SY978 @ SV629 @ SV472 ) @ SY978 )
                          | ( ( sK32_D @ SY978 @ SV629 @ SV472 )
                           != SV472 ) )
                      | ~ ( ~ ( in @ ( sK32_D @ SY978 @ SV629 @ SV472 ) @ SY978 )
                          | ( ( sK32_D @ SY978 @ SV629 @ SV472 )
                           != SV629 ) ) )
                | ~ ( ( in @ ( sK32_D @ SY978 @ SV629 @ SV472 ) @ SY978 )
                    | ( ( sK32_D @ SY978 @ SV629 @ SV472 )
                      = SV472 )
                    | ( ( sK32_D @ SY978 @ SV629 @ SV472 )
                      = SV629 ) ) )
            | ( SY978
              = ( unordered_pair @ SV472 @ SV629 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2533]) ).

thf(2643,plain,
    ! [SV630: $i,SV472: $i] :
      ( ( ! [SY979: $i] :
            ( ( SY979
             != ( unordered_pair @ SV472 @ SV630 ) )
            | ~ ( ~ ! [SY980: $i] :
                      ( ~ ( in @ SY980 @ SY979 )
                      | ( SY980 = SV472 )
                      | ( SY980 = SV630 ) )
                | ~ ~ ( ~ ! [SY848: $i] :
                            ( ( SY848 != SV472 )
                            | ( in @ SY848 @ SY979 ) )
                      | ~ ! [SY982: $i] :
                            ( ( SY982 != SV630 )
                            | ( in @ SY982 @ SY979 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2534]) ).

thf(2644,plain,
    ! [SV631: $i,SV581: $i] :
      ( ( ( ( set_intersection2 @ SV581 @ SV631 )
         != empty_set )
        | ( disjoint @ SV581 @ SV631 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2535]) ).

thf(2645,plain,
    ! [SV632: $i,SV582: $i] :
      ( ( ~ ( disjoint @ SV582 @ SV632 )
        | ( ( set_intersection2 @ SV582 @ SV632 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2536]) ).

thf(2646,plain,
    ! [SV633: $i,SV583: $i] :
      ( ( ( disjoint @ SV583 @ SV633 )
        | ~ ( ~ ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV583 )
            | ~ ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV633 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2537]) ).

thf(2647,plain,
    ! [SV634: $i,SV584: $i] :
      ( ( ! [SY983: $i] :
            ( ~ ( in @ SY983 @ SV584 )
            | ~ ( in @ SY983 @ SV634 ) )
        | ~ ( disjoint @ SV584 @ SV634 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2538]) ).

thf(2648,plain,
    ! [SV585: $i,SV635: $i] :
      ( ( ~ ( ~ ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV585 )
            | ~ ~ ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV635 ) )
        | ( subset @ SV585 @ SV635 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2539]) ).

thf(2649,plain,
    ! [SV636: $i,SV586: $i] :
      ( ( ~ ( subset @ SV586 @ SV636 )
        | ! [SY984: $i] :
            ( ~ ( in @ SY984 @ SV586 )
            | ( in @ SY984 @ SV636 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2540]) ).

thf(2650,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
                | ~ ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) )
            | ~ ( ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
                | ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) ) )
        | ( SV637
          = ( powerset @ SV587 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2541]) ).

thf(2651,plain,
    ! [SV588: $i,SV638: $i] :
      ( ( ( SV638
         != ( powerset @ SV588 ) )
        | ~ ( ~ ! [SY985: $i] :
                  ( ~ ( in @ SY985 @ SV638 )
                  | ( subset @ SY985 @ SV588 ) )
            | ~ ! [SY986: $i] :
                  ( ~ ( subset @ SY986 @ SV588 )
                  | ( in @ SY986 @ SV638 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2542]) ).

thf(2652,plain,
    ! [SV537: $i,SV473: $i] :
      ( ( ! [SY895: $i] :
            ( ! [SY896: $i] :
                ( ( ordered_pair @ SV473 @ SV537 )
               != ( ordered_pair @ SY895 @ SY896 ) )
            | ( SV473 = SY895 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2543]) ).

thf(2653,plain,
    ! [SV537: $i,SV473: $i] :
      ( ( ! [SY897: $i,SY898: $i] :
            ( ( ( ordered_pair @ SV473 @ SV537 )
             != ( ordered_pair @ SY897 @ SY898 ) )
            | ( SV537 = SY898 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2544]) ).

thf(2654,plain,
    ! [SV474: $i] :
      ( ( ( element @ ( sK7_B @ SV474 ) @ ( powerset @ SV474 ) )
        = $true )
      | ( ( empty @ SV474 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2545]) ).

thf(2655,plain,
    ! [SV474: $i] :
      ( ( ( ~ ( empty @ ( sK7_B @ SV474 ) ) )
        = $true )
      | ( ( empty @ SV474 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2546]) ).

thf(2656,plain,
    ! [SV639: $i,SV589: $i] :
      ( ( ~ ( in @ SV589 @ SV639 )
        | ( subset @ ( singleton @ SV589 ) @ SV639 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2547]) ).

thf(2657,plain,
    ! [SV640: $i,SV590: $i] :
      ( ( ~ ( subset @ ( singleton @ SV590 ) @ SV640 )
        | ( in @ SV590 @ SV640 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2548]) ).

thf(2658,plain,
    ! [SV641: $i,SV475: $i] :
      ( ( ! [SY987: $i] :
            ( ~ ( in @ SV475 @ SY987 )
            | ~ ( in @ SV641 @ SY987 )
            | ( subset @ ( unordered_pair @ SV475 @ SV641 ) @ SY987 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2549]) ).

thf(2659,plain,
    ! [SV475: $i] :
      ( ( ~ ! [SY857: $i,SY858: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV475 @ SY857 ) @ SY858 )
              | ( in @ SV475 @ SY858 ) )
        | ~ ! [SY859: $i,SY860: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV475 @ SY859 ) @ SY860 )
              | ( in @ SY859 @ SY860 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2550]) ).

thf(2660,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
              | ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) ) )
        = $false )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2551]) ).

thf(2661,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( ~ ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
              | ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) ) )
        = $false )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2551]) ).

thf(2662,plain,
    ! [SV385: $i,SV480: $i,SV591: $i] :
      ( ( ( ~ ( in @ SV591 @ SV480 ) )
        = $true )
      | ( ( in @ SV591 @ SV385 )
        = $true )
      | ( ( element @ SV480 @ ( powerset @ SV385 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2553]) ).

thf(2663,plain,
    ! [SV394: $i,SV539: $i,SV489: $i] :
      ( ( ( element @ SV489 @ ( powerset @ SV539 ) )
        = $false )
      | ( ( ~ ( in @ SV394 @ SV489 ) )
        = $true )
      | ( ( element @ SV394 @ SV539 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2556]) ).

thf(2664,plain,
    ! [SV491: $i,SV397: $i,SV592: $i] :
      ( ( ( in @ SV592 @ SV397 )
        = $true )
      | ( ( subset @ SV397 @ ( set_difference @ SV491 @ ( singleton @ SV592 ) ) )
        = $true )
      | ( ( subset @ SV397 @ SV491 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2558]) ).

thf(2665,plain,
    ! [SV554: $i,SV492: $i,SV540: $i,SV398: $i] :
      ( ( ( SV398 = SV540 )
        = $true )
      | ( ( ( ( unordered_pair @ SV398 @ SV492 )
           != ( unordered_pair @ SV540 @ SV554 ) ) )
        = $true )
      | ( ( SV398 = SV554 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2559]) ).

thf(2666,plain,
    ! [SV555: $i,SV541: $i,SV493: $i,SV399: $i] :
      ( ( ( ~ ( subset @ SV399 @ SV493 ) )
        = $true )
      | ( ( ~ ( subset @ SV541 @ SV555 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV399 @ SV541 ) @ ( cartesian_product2 @ SV493 @ SV555 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2560]) ).

thf(2667,plain,
    ! [SV542: $i,SV496: $i,SV402: $i] :
      ( ( ( subset @ SV402 @ SV496 )
        = $false )
      | ( ( ~ ( subset @ SV402 @ SV542 ) )
        = $true )
      | ( ( subset @ SV402 @ ( set_intersection2 @ SV496 @ SV542 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2561]) ).

thf(2668,plain,
    ! [SV543: $i,SV497: $i,SV403: $i] :
      ( ( ( subset @ SV403 @ SV497 )
        = $false )
      | ( ( ~ ( subset @ SV497 @ SV543 ) )
        = $true )
      | ( ( subset @ SV403 @ SV543 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2562]) ).

thf(2669,plain,
    ! [SV505: $i,SV413: $i] :
      ( ( ( ( complements_of_subsets @ SV413 @ SV505 )
          = empty_set )
        = $false )
      | ( ( SV505 = empty_set )
        = $true )
      | ( ( element @ SV505 @ ( powerset @ ( powerset @ SV413 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2565]) ).

thf(2670,plain,
    ! [SV544: $i,SV415: $i,SV642: $i] :
      ( ( ( ~ ( element @ SV642 @ SV415 )
          | ( in @ SV642 @ SV544 )
          | ( in @ SV642 @ ( subset_complement @ SV415 @ SV544 ) ) )
        = $true )
      | ( ( element @ SV544 @ ( powerset @ SV415 ) )
        = $false )
      | ( ( SV415 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2566]) ).

thf(2671,plain,
    ! [SV545: $i,SV416: $i,SV507: $i] :
      ( ( ( ~ ( in @ SV507 @ ( subset_complement @ SV416 @ SV545 ) ) )
        = $true )
      | ( ( ~ ( in @ SV507 @ SV545 ) )
        = $true )
      | ( ( element @ SV545 @ ( powerset @ SV416 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2567]) ).

thf(2672,plain,
    ! [SV418: $i,SV546: $i,SV509: $i] :
      ( ( ( disjoint @ SV509 @ SV546 )
        = $false )
      | ( ( ~ ( subset @ SV418 @ SV509 ) )
        = $true )
      | ( ( disjoint @ SV418 @ SV546 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2569]) ).

thf(2673,plain,
    ! [SV547: $i,SV512: $i,SV422: $i] :
      ( ( ( subset @ SV422 @ SV512 )
        = $false )
      | ( ( ~ ( subset @ SV547 @ SV512 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV422 @ SV547 ) @ SV512 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2570]) ).

thf(2674,plain,
    ! [SV549: $i,SV434: $i,SV522: $i] :
      ( ( ( element @ SV522 @ ( powerset @ SV434 ) )
        = $false )
      | ( ( ~ ( element @ SV549 @ ( powerset @ SV434 ) ) )
        = $true )
      | ( ( element @ ( subset_difference @ SV434 @ SV522 @ SV549 ) @ ( powerset @ SV434 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2573]) ).

thf(2675,plain,
    ! [SV552: $i,SV448: $i,SV529: $i] :
      ( ( ( element @ SV529 @ ( powerset @ SV448 ) )
        = $false )
      | ( ( ~ ( element @ SV552 @ ( powerset @ SV448 ) ) )
        = $true )
      | ( ( ( subset_difference @ SV448 @ SV529 @ SV552 )
          = ( set_difference @ SV529 @ SV552 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2574]) ).

thf(2676,plain,
    ! [SV455: $i,SV553: $i,SV531: $i] :
      ( ( ( element @ SV531 @ ( powerset @ SV553 ) )
        = $false )
      | ( ( ~ ( in @ SV455 @ SV531 ) )
        = $true )
      | ( ( ~ ( empty @ SV553 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2575]) ).

thf(2677,plain,
    ! [SV457: $i,SV532: $i] :
      ( ( ( empty @ SV532 )
        = $false )
      | ( ( SV457 = SV532 )
        = $true )
      | ( ( empty @ SV457 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2576]) ).

thf(2678,plain,
    ! [SV595: $i,SV557: $i] :
      ( ( ( ( ( set_difference @ SV557 @ SV595 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV557 @ SV595 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2577]) ).

thf(2679,plain,
    ! [SV596: $i,SV558: $i] :
      ( ( ( ~ ( subset @ SV558 @ SV596 ) )
        = $true )
      | ( ( ( set_difference @ SV558 @ SV596 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2578]) ).

thf(2680,plain,
    ! [SV597: $i,SV559: $i] :
      ( ( ( disjoint @ SV559 @ SV597 )
        = $true )
      | ( ( in @ ( sK39_C @ SV597 @ SV559 ) @ ( set_intersection2 @ SV559 @ SV597 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2579]) ).

thf(2681,plain,
    ! [SV598: $i,SV560: $i] :
      ( ( ( ! [SY946: $i] :
              ~ ( in @ SY946 @ ( set_intersection2 @ SV560 @ SV598 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV560 @ SV598 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2580]) ).

thf(2682,plain,
    ! [SV643: $i,SV599: $i,SV458: $i] :
      ( ( ~ ( ~ ( ! [SY988: $i,SY989: $i] :
                    ( ~ ( in @ SY988 @ SV458 )
                    | ~ ( in @ SY989 @ SV599 )
                    | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
                     != ( ordered_pair @ SY988 @ SY989 ) ) )
                | ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
            | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
                          | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) )
                    | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
                     != ( ordered_pair @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) ) ) )
                | ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) ) )
        | ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2581]) ).

thf(2683,plain,
    ! [SV600: $i,SV458: $i,SV644: $i] :
      ( ( ( SV644
         != ( cartesian_product2 @ SV458 @ SV600 ) )
        | ~ ( ~ ! [SY990: $i] :
                  ( ! [SY952: $i,SY953: $i] :
                      ( ~ ( in @ SY952 @ SV458 )
                      | ~ ( in @ SY953 @ SV600 )
                      | ( SY990
                       != ( ordered_pair @ SY952 @ SY953 ) ) )
                  | ( in @ SY990 @ SV644 ) )
            | ~ ! [SY993: $i] :
                  ( ~ ( in @ SY993 @ SV644 )
                  | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                            | ~ ( in @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
                      | ( SY993
                       != ( ordered_pair @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2582]) ).

thf(2684,plain,
    ! [SV459: $i] :
      ( ( ( ! [SY779: $i] :
              ( ~ ( ~ ( ! [SY780: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ SY780 ) @ SV459 )
                      | ~ ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SY779 @ SV459 ) @ ( sK23_SY312 @ SY779 @ SV459 ) ) @ SV459 )
                      | ( in @ ( sK22_C @ SY779 @ SV459 ) @ SY779 ) ) )
              | ( SY779
                = ( relation_dom @ SV459 ) ) ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2583]) ).

thf(2685,plain,
    ! [SV459: $i] :
      ( ( ( ! [SY781: $i] :
              ( ( SY781
               != ( relation_dom @ SV459 ) )
              | ~ ( ~ ! [SY782: $i] :
                        ( ! [SY783: $i] :
                            ~ ( in @ ( ordered_pair @ SY782 @ SY783 ) @ SV459 )
                        | ( in @ SY782 @ SY781 ) )
                  | ~ ! [SY784: $i] :
                        ( ~ ( in @ SY784 @ SY781 )
                        | ( in @ ( ordered_pair @ SY784 @ ( sK21_D @ SY784 @ SY781 @ SV459 ) ) @ SV459 ) ) ) ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2584]) ).

thf(2686,plain,
    ! [SV460: $i,SV601: $i] :
      ( ( ( ~ ( subset @ SV601 @ ( sK10_B @ SV460 ) )
          | ( are_equipotent @ SV601 @ ( sK10_B @ SV460 ) ) )
        = $true )
      | ( ( in @ SV601 @ ( sK10_B @ SV460 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2585]) ).

thf(2687,plain,
    ! [SV460: $i] :
      ( ( ~ ! [SY786: $i] :
              ( ~ ( ~ ! [SY787: $i] :
                        ( ~ ( subset @ SY787 @ SY786 )
                        | ( in @ SY787 @ ( sK11_SY302 @ SY786 @ SV460 ) ) )
                  | ~ ( in @ ( sK11_SY302 @ SY786 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
              | ~ ( in @ SY786 @ ( sK10_B @ SV460 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2586]) ).

thf(2688,plain,
    ! [SV460: $i] :
      ( ( ~ ~ ( ~ ! [SY788: $i,SY789: $i] :
                    ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
                    | ~ ( subset @ SY789 @ SY788 )
                    | ( in @ SY789 @ ( sK10_B @ SV460 ) ) )
              | ~ ( in @ SV460 @ ( sK10_B @ SV460 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2586]) ).

thf(2689,plain,
    ! [SV461: $i,SV533: $i] :
      ( ( ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV461 )
        = $true )
      | ( ( element @ SV461 @ ( powerset @ SV533 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2587]) ).

thf(2690,plain,
    ! [SV461: $i,SV533: $i] :
      ( ( ( ~ ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV533 ) )
        = $true )
      | ( ( element @ SV461 @ ( powerset @ SV533 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2588]) ).

thf(2691,plain,
    ! [SV462: $i,SV602: $i] :
      ( ( ( ~ ( subset @ SV602 @ ( sK9_B @ SV462 ) )
          | ( are_equipotent @ SV602 @ ( sK9_B @ SV462 ) ) )
        = $true )
      | ( ( in @ SV602 @ ( sK9_B @ SV462 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2589]) ).

thf(2692,plain,
    ! [SV462: $i] :
      ( ( ~ ! [SY792: $i] :
              ( ~ ( in @ SY792 @ ( sK9_B @ SV462 ) )
              | ( in @ ( powerset @ SY792 ) @ ( sK9_B @ SV462 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2590]) ).

thf(2693,plain,
    ! [SV462: $i] :
      ( ( ~ ~ ( ~ ! [SY793: $i,SY794: $i] :
                    ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
                    | ~ ( subset @ SY794 @ SY793 )
                    | ( in @ SY794 @ ( sK9_B @ SV462 ) ) )
              | ~ ( in @ SV462 @ ( sK9_B @ SV462 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2590]) ).

thf(2694,plain,
    ! [SV534: $i,SV645: $i,SV463: $i] :
      ( ( ! [SY994: $i] :
            ( ~ ( in @ SV463 @ SV645 )
            | ~ ( in @ SV534 @ SY994 )
            | ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV645 @ SY994 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2591]) ).

thf(2695,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ~ ! [SY883: $i] :
              ( ! [SY884: $i] :
                  ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY883 @ SY884 ) )
              | ( in @ SV463 @ SY883 ) )
        | ~ ! [SY885: $i,SY886: $i] :
              ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY885 @ SY886 ) )
              | ( in @ SV534 @ SY886 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2592]) ).

thf(2696,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
                | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
                | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
            | ~ ~ ( ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
                      | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
                  | ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
                      | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) ) ) )
        | ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2593]) ).

thf(2697,plain,
    ! [SV604: $i,SV464: $i,SV647: $i] :
      ( ( ( SV647
         != ( set_intersection2 @ SV464 @ SV604 ) )
        | ~ ( ~ ! [SY995: $i] :
                  ( ~ ( in @ SY995 @ SV464 )
                  | ~ ( in @ SY995 @ SV604 )
                  | ( in @ SY995 @ SV647 ) )
            | ~ ~ ( ~ ! [SY996: $i] :
                        ( ~ ( in @ SY996 @ SV647 )
                        | ( in @ SY996 @ SV464 ) )
                  | ~ ! [SY997: $i] :
                        ( ~ ( in @ SY997 @ SV647 )
                        | ( in @ SY997 @ SV604 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2594]) ).

thf(2698,plain,
    ! [SV605: $i,SV561: $i] :
      ( ( ( ~ ( subset @ SV561 @ ( singleton @ SV605 ) ) )
        = $true )
      | ( ( ( SV561 = empty_set )
          | ( SV561
            = ( singleton @ SV605 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2595]) ).

thf(2699,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2596]) ).

thf(2700,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2597]) ).

thf(2701,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( sK38_SY319 @ SX1 @ SX0 ) ) )
                      | ~ ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) )
                  | ~ ( ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX0 )
                          | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX2 ) )
                      | ( in @ ( sK37_C @ SX1 @ SX0 ) @ SX1 ) ) )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2598]) ).

thf(2702,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( ~ ( in @ ( sK36_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ SX2 @ ( sK36_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)],[2599]) ).

thf(2703,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ( SX1 = empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2600]) ).

thf(2704,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1 != empty_set )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2601]) ).

thf(2705,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2602]) ).

thf(2706,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( in @ SX1 @ SX0 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2603]) ).

thf(2707,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( empty @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2604]) ).

thf(2708,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( empty @ SX1 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2605]) ).

thf(2709,plain,
    ! [SV606: $i,SV562: $i] :
      ( ( ( ~ ( in @ SV562 @ SV606 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV562 ) @ SV606 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2606]) ).

thf(2710,plain,
    ! [SV607: $i,SV563: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV563 ) @ SV607 ) )
        = $true )
      | ( ( in @ SV563 @ SV607 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2607]) ).

thf(2711,plain,
    ! [SV608: $i,SV564: $i] :
      ( ( ( ( SV564 = SV608 )
          | ~ ( subset @ SV564 @ SV608 ) )
        = $true )
      | ( ( proper_subset @ SV564 @ SV608 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2608]) ).

thf(2712,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2609]) ).

thf(2713,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2610]) ).

thf(2714,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
                | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
                | ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
            | ~ ~ ( ~ ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
                      | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
                  | ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
                      | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) ) ) )
        | ( SV648
          = ( set_difference @ SV465 @ SV609 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2611]) ).

thf(2715,plain,
    ! [SV610: $i,SV465: $i,SV649: $i] :
      ( ( ( SV649
         != ( set_difference @ SV465 @ SV610 ) )
        | ~ ( ~ ! [SY998: $i] :
                  ( ~ ( in @ SY998 @ SV465 )
                  | ( in @ SY998 @ SV610 )
                  | ( in @ SY998 @ SV649 ) )
            | ~ ~ ( ~ ! [SY999: $i] :
                        ( ~ ( in @ SY999 @ SV649 )
                        | ( in @ SY999 @ SV465 ) )
                  | ~ ! [SY1000: $i] :
                        ( ~ ( in @ SY1000 @ SV649 )
                        | ~ ( in @ SY1000 @ SV610 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2612]) ).

thf(2716,plain,
    ! [SV535: $i,SV650: $i,SV466: $i] :
      ( ( ! [SY1001: $i] :
            ( ~ ( in @ SV466 @ SV650 )
            | ~ ( in @ SV535 @ SY1001 )
            | ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV650 @ SY1001 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2613]) ).

thf(2717,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ~ ! [SY889: $i] :
              ( ! [SY890: $i] :
                  ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY889 @ SY890 ) )
              | ( in @ SV466 @ SY889 ) )
        | ~ ! [SY891: $i,SY892: $i] :
              ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY891 @ SY892 ) )
              | ( in @ SV535 @ SY892 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2614]) ).

thf(2718,plain,
    ! [SV611: $i,SV467: $i] :
      ( ( ( ~ ( subset @ SV467 @ SV611 ) )
        = $true )
      | ( ( ! [SY965: $i] : ( subset @ ( cartesian_product2 @ SV467 @ SY965 ) @ ( cartesian_product2 @ SV611 @ SY965 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2615]) ).

thf(2719,plain,
    ! [SV612: $i,SV467: $i] :
      ( ( ( ~ ( subset @ SV467 @ SV612 ) )
        = $true )
      | ( ( ! [SY966: $i] : ( subset @ ( cartesian_product2 @ SY966 @ SV467 ) @ ( cartesian_product2 @ SY966 @ SV612 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2616]) ).

thf(2720,plain,
    ! [SV468: $i] :
      ( ( ( ! [SY827: $i] :
              ( ~ ( ~ ( ! [SY828: $i] :
                          ~ ( in @ ( ordered_pair @ SY828 @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                      | ~ ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SY827 @ SV468 ) @ ( sK15_C @ SY827 @ SV468 ) ) @ SV468 )
                      | ( in @ ( sK15_C @ SY827 @ SV468 ) @ SY827 ) ) )
              | ( SY827
                = ( relation_rng @ SV468 ) ) ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2617]) ).

thf(2721,plain,
    ! [SV468: $i] :
      ( ( ( ! [SY829: $i] :
              ( ( SY829
               != ( relation_rng @ SV468 ) )
              | ~ ( ~ ! [SY830: $i] :
                        ( ! [SY831: $i] :
                            ~ ( in @ ( ordered_pair @ SY831 @ SY830 ) @ SV468 )
                        | ( in @ SY830 @ SY829 ) )
                  | ~ ! [SY832: $i] :
                        ( ~ ( in @ SY832 @ SY829 )
                        | ( in @ ( ordered_pair @ ( sK14_D @ SY832 @ SY829 @ SV468 ) @ SY832 ) @ SV468 ) ) ) ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2618]) ).

thf(2722,plain,
    ! [SV566: $i] :
      ( ( ( SV566 = empty_set )
        = $false )
      | ( ( ! [SY911: $i] :
              ~ ( in @ SY911 @ SV566 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2620]) ).

thf(2723,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( ~ ( ~ ( ( ( sK35_C @ SV613 @ SV567 )
                   != SV567 )
                  | ~ ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) )
              | ~ ( ( ( sK35_C @ SV613 @ SV567 )
                    = SV567 )
                  | ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) ) ) )
        = $true )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2621]) ).

thf(2724,plain,
    ! [SV568: $i,SV614: $i] :
      ( ( ( ( SV614
           != ( singleton @ SV568 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY967: $i] :
                    ( ( SY967 != SV568 )
                    | ( in @ SY967 @ SV614 ) )
              | ~ ! [SY968: $i] :
                    ( ~ ( in @ SY968 @ SV614 )
                    | ( SY968 = SV568 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2622]) ).

thf(2725,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ~ ( ~ ( ! [SY969: $i] :
                      ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SY969 )
                      | ~ ( in @ SY969 @ SV569 ) )
                  | ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
              | ~ ( ~ ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ ( sK20_SY310 @ SV615 @ SV569 ) )
                      | ~ ( in @ ( sK20_SY310 @ SV615 @ SV569 ) @ SV569 ) )
                  | ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) ) ) )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2623]) ).

thf(2726,plain,
    ! [SV570: $i,SV616: $i] :
      ( ( ( ( SV616
           != ( union @ SV570 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY970: $i] :
                    ( ! [SY920: $i] :
                        ( ~ ( in @ SY970 @ SY920 )
                        | ~ ( in @ SY920 @ SV570 ) )
                    | ( in @ SY970 @ SV616 ) )
              | ~ ! [SY972: $i] :
                    ( ~ ( in @ SY972 @ SV616 )
                    | ~ ( ~ ( in @ SY972 @ ( sK18_D @ SY972 @ SV616 @ SV570 ) )
                        | ~ ( in @ ( sK18_D @ SY972 @ SV616 @ SV570 ) @ SV570 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2624]) ).

thf(2727,plain,
    ! [SV617: $i,SV571: $i] :
      ( ( ( ~ ( subset @ SV571 @ ( singleton @ SV617 ) ) )
        = $true )
      | ( ( ( SV571 = empty_set )
          | ( SV571
            = ( singleton @ SV617 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2625]) ).

thf(2728,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2626]) ).

thf(2729,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2627]) ).

thf(2730,plain,
    ! [SV618: $i,SV572: $i] :
      ( ( ( ( ( set_difference @ SV572 @ ( singleton @ SV618 ) )
           != SV572 ) )
        = $true )
      | ( ( ~ ( in @ SV618 @ SV572 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2628]) ).

thf(2731,plain,
    ! [SV573: $i,SV619: $i] :
      ( ( ( in @ SV619 @ SV573 )
        = $true )
      | ( ( ( set_difference @ SV573 @ ( singleton @ SV619 ) )
          = SV573 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2629]) ).

thf(2732,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                      | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) )
                  | ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                      | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) )
            | ~ ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 )
                | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) )
        | ( SV651
          = ( set_union2 @ SV470 @ SV620 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2630]) ).

thf(2733,plain,
    ! [SV621: $i,SV470: $i,SV652: $i] :
      ( ( ( SV652
         != ( set_union2 @ SV470 @ SV621 ) )
        | ~ ( ~ ! [SY1002: $i] :
                  ( ~ ( in @ SY1002 @ SV652 )
                  | ( in @ SY1002 @ SV470 )
                  | ( in @ SY1002 @ SV621 ) )
            | ~ ~ ( ~ ! [SY1003: $i] :
                        ( ~ ( in @ SY1003 @ SV470 )
                        | ( in @ SY1003 @ SV652 ) )
                  | ~ ! [SY1004: $i] :
                        ( ~ ( in @ SY1004 @ SV621 )
                        | ( in @ SY1004 @ SV652 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2631]) ).

thf(2734,plain,
    ! [SV622: $i,SV574: $i] :
      ( ( ( ( ( set_difference @ SV574 @ SV622 )
           != SV574 ) )
        = $true )
      | ( ( disjoint @ SV574 @ SV622 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2632]) ).

thf(2735,plain,
    ! [SV623: $i,SV575: $i] :
      ( ( ( ~ ( disjoint @ SV575 @ SV623 ) )
        = $true )
      | ( ( ( set_difference @ SV575 @ SV623 )
          = SV575 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2633]) ).

thf(2736,plain,
    ! [SV536: $i,SV471: $i] :
      ( ( ( ~ ! [SY893: $i] :
                ( ~ ( element @ SY893 @ ( powerset @ SV471 ) )
                | ~ ( disjoint @ SV536 @ SY893 )
                | ( subset @ SV536 @ ( subset_complement @ SV471 @ SY893 ) ) ) )
        = $false )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2634]) ).

thf(2737,plain,
    ! [SV536: $i,SV471: $i] :
      ( ( ( ~ ! [SY894: $i] :
                ( ~ ( element @ SY894 @ ( powerset @ SV471 ) )
                | ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SY894 ) )
                | ( disjoint @ SV536 @ SY894 ) ) )
        = $false )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2634]) ).

thf(2738,plain,
    ! [SV624: $i,SV576: $i] :
      ( ( ( ~ ( subset @ SV576 @ SV624 )
          | ~ ( subset @ SV624 @ SV576 ) )
        = $true )
      | ( ( SV576 = SV624 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2635]) ).

thf(2739,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2636]) ).

thf(2740,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[2637]) ).

thf(2741,plain,
    ! [SV625: $i,SV577: $i] :
      ( ( ( ~ ( element @ SV577 @ ( powerset @ SV625 ) ) )
        = $true )
      | ( ( subset @ SV577 @ SV625 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2638]) ).

thf(2742,plain,
    ! [SV626: $i,SV578: $i] :
      ( ( ( ~ ( subset @ SV578 @ SV626 ) )
        = $true )
      | ( ( element @ SV578 @ ( powerset @ SV626 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2639]) ).

thf(2743,plain,
    ! [SV627: $i,SV579: $i] :
      ( ( ( ( ( set_difference @ SV579 @ SV627 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV579 @ SV627 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2640]) ).

thf(2744,plain,
    ! [SV628: $i,SV580: $i] :
      ( ( ( ~ ( subset @ SV580 @ SV628 ) )
        = $true )
      | ( ( ( set_difference @ SV580 @ SV628 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2641]) ).

thf(2745,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                      | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                       != SV472 ) )
                  | ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                      | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                       != SV629 ) ) )
            | ~ ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                  = SV472 )
                | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                  = SV629 ) ) )
        | ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2642]) ).

thf(2746,plain,
    ! [SV630: $i,SV472: $i,SV654: $i] :
      ( ( ( SV654
         != ( unordered_pair @ SV472 @ SV630 ) )
        | ~ ( ~ ! [SY1005: $i] :
                  ( ~ ( in @ SY1005 @ SV654 )
                  | ( SY1005 = SV472 )
                  | ( SY1005 = SV630 ) )
            | ~ ~ ( ~ ! [SY1006: $i] :
                        ( ( SY1006 != SV472 )
                        | ( in @ SY1006 @ SV654 ) )
                  | ~ ! [SY1007: $i] :
                        ( ( SY1007 != SV630 )
                        | ( in @ SY1007 @ SV654 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2643]) ).

thf(2747,plain,
    ! [SV631: $i,SV581: $i] :
      ( ( ( ( ( set_intersection2 @ SV581 @ SV631 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV581 @ SV631 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2644]) ).

thf(2748,plain,
    ! [SV632: $i,SV582: $i] :
      ( ( ( ~ ( disjoint @ SV582 @ SV632 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV582 @ SV632 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2645]) ).

thf(2749,plain,
    ! [SV633: $i,SV583: $i] :
      ( ( ( disjoint @ SV583 @ SV633 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV583 )
              | ~ ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV633 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2646]) ).

thf(2750,plain,
    ! [SV634: $i,SV584: $i] :
      ( ( ( ! [SY983: $i] :
              ( ~ ( in @ SY983 @ SV584 )
              | ~ ( in @ SY983 @ SV634 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV584 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2647]) ).

thf(2751,plain,
    ! [SV585: $i,SV635: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV585 )
              | ~ ~ ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV635 ) ) )
        = $true )
      | ( ( subset @ SV585 @ SV635 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2648]) ).

thf(2752,plain,
    ! [SV636: $i,SV586: $i] :
      ( ( ( ~ ( subset @ SV586 @ SV636 ) )
        = $true )
      | ( ( ! [SY984: $i] :
              ( ~ ( in @ SY984 @ SV586 )
              | ( in @ SY984 @ SV636 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2649]) ).

thf(2753,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
                  | ~ ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) )
              | ~ ( ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
                  | ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) ) ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2650]) ).

thf(2754,plain,
    ! [SV588: $i,SV638: $i] :
      ( ( ( ( SV638
           != ( powerset @ SV588 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY985: $i] :
                    ( ~ ( in @ SY985 @ SV638 )
                    | ( subset @ SY985 @ SV588 ) )
              | ~ ! [SY986: $i] :
                    ( ~ ( subset @ SY986 @ SV588 )
                    | ( in @ SY986 @ SV638 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2651]) ).

thf(2755,plain,
    ! [SV655: $i,SV537: $i,SV473: $i] :
      ( ( ! [SY1008: $i] :
            ( ( ordered_pair @ SV473 @ SV537 )
           != ( ordered_pair @ SV655 @ SY1008 ) )
        | ( SV473 = SV655 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2652]) ).

thf(2756,plain,
    ! [SV656: $i,SV537: $i,SV473: $i] :
      ( ( ! [SY1009: $i] :
            ( ( ( ordered_pair @ SV473 @ SV537 )
             != ( ordered_pair @ SV656 @ SY1009 ) )
            | ( SV537 = SY1009 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2653]) ).

thf(2757,plain,
    ! [SV474: $i] :
      ( ( ( empty @ ( sK7_B @ SV474 ) )
        = $false )
      | ( ( empty @ SV474 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2655]) ).

thf(2758,plain,
    ! [SV639: $i,SV589: $i] :
      ( ( ( ~ ( in @ SV589 @ SV639 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV589 ) @ SV639 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2656]) ).

thf(2759,plain,
    ! [SV640: $i,SV590: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV590 ) @ SV640 ) )
        = $true )
      | ( ( in @ SV590 @ SV640 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2657]) ).

thf(2760,plain,
    ! [SV641: $i,SV657: $i,SV475: $i] :
      ( ( ~ ( in @ SV475 @ SV657 )
        | ~ ( in @ SV641 @ SV657 )
        | ( subset @ ( unordered_pair @ SV475 @ SV641 ) @ SV657 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2658]) ).

thf(2761,plain,
    ! [SV475: $i] :
      ( ( ~ ! [SY857: $i,SY858: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV475 @ SY857 ) @ SY858 )
              | ( in @ SV475 @ SY858 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2659]) ).

thf(2762,plain,
    ! [SV475: $i] :
      ( ( ~ ! [SY859: $i,SY860: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV475 @ SY859 ) @ SY860 )
              | ( in @ SY859 @ SY860 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2659]) ).

thf(2763,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
          | ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) )
        = $true )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2660]) ).

thf(2764,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
          | ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) )
        = $true )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2661]) ).

thf(2765,plain,
    ! [SV385: $i,SV480: $i,SV591: $i] :
      ( ( ( in @ SV591 @ SV480 )
        = $false )
      | ( ( in @ SV591 @ SV385 )
        = $true )
      | ( ( element @ SV480 @ ( powerset @ SV385 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2662]) ).

thf(2766,plain,
    ! [SV539: $i,SV489: $i,SV394: $i] :
      ( ( ( in @ SV394 @ SV489 )
        = $false )
      | ( ( element @ SV489 @ ( powerset @ SV539 ) )
        = $false )
      | ( ( element @ SV394 @ SV539 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2663]) ).

thf(2767,plain,
    ! [SV554: $i,SV540: $i,SV492: $i,SV398: $i] :
      ( ( ( ( unordered_pair @ SV398 @ SV492 )
          = ( unordered_pair @ SV540 @ SV554 ) )
        = $false )
      | ( ( SV398 = SV540 )
        = $true )
      | ( ( SV398 = SV554 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2665]) ).

thf(2768,plain,
    ! [SV555: $i,SV541: $i,SV493: $i,SV399: $i] :
      ( ( ( subset @ SV399 @ SV493 )
        = $false )
      | ( ( ~ ( subset @ SV541 @ SV555 ) )
        = $true )
      | ( ( subset @ ( cartesian_product2 @ SV399 @ SV541 ) @ ( cartesian_product2 @ SV493 @ SV555 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2666]) ).

thf(2769,plain,
    ! [SV496: $i,SV542: $i,SV402: $i] :
      ( ( ( subset @ SV402 @ SV542 )
        = $false )
      | ( ( subset @ SV402 @ SV496 )
        = $false )
      | ( ( subset @ SV402 @ ( set_intersection2 @ SV496 @ SV542 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2667]) ).

thf(2770,plain,
    ! [SV403: $i,SV543: $i,SV497: $i] :
      ( ( ( subset @ SV497 @ SV543 )
        = $false )
      | ( ( subset @ SV403 @ SV497 )
        = $false )
      | ( ( subset @ SV403 @ SV543 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2668]) ).

thf(2771,plain,
    ! [SV544: $i,SV415: $i,SV642: $i] :
      ( ( ( ~ ( element @ SV642 @ SV415 ) )
        = $true )
      | ( ( ( in @ SV642 @ SV544 )
          | ( in @ SV642 @ ( subset_complement @ SV415 @ SV544 ) ) )
        = $true )
      | ( ( element @ SV544 @ ( powerset @ SV415 ) )
        = $false )
      | ( ( SV415 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2670]) ).

thf(2772,plain,
    ! [SV545: $i,SV416: $i,SV507: $i] :
      ( ( ( in @ SV507 @ ( subset_complement @ SV416 @ SV545 ) )
        = $false )
      | ( ( ~ ( in @ SV507 @ SV545 ) )
        = $true )
      | ( ( element @ SV545 @ ( powerset @ SV416 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2671]) ).

thf(2773,plain,
    ! [SV546: $i,SV509: $i,SV418: $i] :
      ( ( ( subset @ SV418 @ SV509 )
        = $false )
      | ( ( disjoint @ SV509 @ SV546 )
        = $false )
      | ( ( disjoint @ SV418 @ SV546 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2672]) ).

thf(2774,plain,
    ! [SV422: $i,SV512: $i,SV547: $i] :
      ( ( ( subset @ SV547 @ SV512 )
        = $false )
      | ( ( subset @ SV422 @ SV512 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV422 @ SV547 ) @ SV512 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2673]) ).

thf(2775,plain,
    ! [SV522: $i,SV434: $i,SV549: $i] :
      ( ( ( element @ SV549 @ ( powerset @ SV434 ) )
        = $false )
      | ( ( element @ SV522 @ ( powerset @ SV434 ) )
        = $false )
      | ( ( element @ ( subset_difference @ SV434 @ SV522 @ SV549 ) @ ( powerset @ SV434 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2674]) ).

thf(2776,plain,
    ! [SV529: $i,SV448: $i,SV552: $i] :
      ( ( ( element @ SV552 @ ( powerset @ SV448 ) )
        = $false )
      | ( ( element @ SV529 @ ( powerset @ SV448 ) )
        = $false )
      | ( ( ( subset_difference @ SV448 @ SV529 @ SV552 )
          = ( set_difference @ SV529 @ SV552 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2675]) ).

thf(2777,plain,
    ! [SV553: $i,SV531: $i,SV455: $i] :
      ( ( ( in @ SV455 @ SV531 )
        = $false )
      | ( ( element @ SV531 @ ( powerset @ SV553 ) )
        = $false )
      | ( ( ~ ( empty @ SV553 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2676]) ).

thf(2778,plain,
    ! [SV595: $i,SV557: $i] :
      ( ( ( ( set_difference @ SV557 @ SV595 )
          = empty_set )
        = $false )
      | ( ( subset @ SV557 @ SV595 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2678]) ).

thf(2779,plain,
    ! [SV596: $i,SV558: $i] :
      ( ( ( subset @ SV558 @ SV596 )
        = $false )
      | ( ( ( set_difference @ SV558 @ SV596 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2679]) ).

thf(2780,plain,
    ! [SV598: $i,SV560: $i,SV658: $i] :
      ( ( ( ~ ( in @ SV658 @ ( set_intersection2 @ SV560 @ SV598 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV560 @ SV598 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2681]) ).

thf(2781,plain,
    ! [SV643: $i,SV599: $i,SV458: $i] :
      ( ( ( ~ ( ~ ( ! [SY988: $i,SY989: $i] :
                      ( ~ ( in @ SY988 @ SV458 )
                      | ~ ( in @ SY989 @ SV599 )
                      | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
                       != ( ordered_pair @ SY988 @ SY989 ) ) )
                  | ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
              | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
                            | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) )
                      | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
                       != ( ordered_pair @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) ) ) )
                  | ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) ) ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2682]) ).

thf(2782,plain,
    ! [SV600: $i,SV458: $i,SV644: $i] :
      ( ( ( ( SV644
           != ( cartesian_product2 @ SV458 @ SV600 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY990: $i] :
                    ( ! [SY952: $i,SY953: $i] :
                        ( ~ ( in @ SY952 @ SV458 )
                        | ~ ( in @ SY953 @ SV600 )
                        | ( SY990
                         != ( ordered_pair @ SY952 @ SY953 ) ) )
                    | ( in @ SY990 @ SV644 ) )
              | ~ ! [SY993: $i] :
                    ( ~ ( in @ SY993 @ SV644 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                              | ~ ( in @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
                        | ( SY993
                         != ( ordered_pair @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2683]) ).

thf(2783,plain,
    ! [SV459: $i,SV659: $i] :
      ( ( ( ~ ( ~ ( ! [SY1010: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ SY1010 ) @ SV459 )
                  | ~ ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ ( sK23_SY312 @ SV659 @ SV459 ) ) @ SV459 )
                  | ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) ) )
          | ( SV659
            = ( relation_dom @ SV459 ) ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2684]) ).

thf(2784,plain,
    ! [SV459: $i,SV660: $i] :
      ( ( ( ( SV660
           != ( relation_dom @ SV459 ) )
          | ~ ( ~ ! [SY1011: $i] :
                    ( ! [SY783: $i] :
                        ~ ( in @ ( ordered_pair @ SY1011 @ SY783 ) @ SV459 )
                    | ( in @ SY1011 @ SV660 ) )
              | ~ ! [SY1013: $i] :
                    ( ~ ( in @ SY1013 @ SV660 )
                    | ( in @ ( ordered_pair @ SY1013 @ ( sK21_D @ SY1013 @ SV660 @ SV459 ) ) @ SV459 ) ) ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2685]) ).

thf(2785,plain,
    ! [SV460: $i,SV601: $i] :
      ( ( ( ~ ( subset @ SV601 @ ( sK10_B @ SV460 ) ) )
        = $true )
      | ( ( are_equipotent @ SV601 @ ( sK10_B @ SV460 ) )
        = $true )
      | ( ( in @ SV601 @ ( sK10_B @ SV460 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2686]) ).

thf(2786,plain,
    ! [SV460: $i] :
      ( ( ! [SY786: $i] :
            ( ~ ( ~ ! [SY787: $i] :
                      ( ~ ( subset @ SY787 @ SY786 )
                      | ( in @ SY787 @ ( sK11_SY302 @ SY786 @ SV460 ) ) )
                | ~ ( in @ ( sK11_SY302 @ SY786 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
            | ~ ( in @ SY786 @ ( sK10_B @ SV460 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2687]) ).

thf(2787,plain,
    ! [SV460: $i] :
      ( ( ~ ( ~ ! [SY788: $i,SY789: $i] :
                  ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
                  | ~ ( subset @ SY789 @ SY788 )
                  | ( in @ SY789 @ ( sK10_B @ SV460 ) ) )
            | ~ ( in @ SV460 @ ( sK10_B @ SV460 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2688]) ).

thf(2788,plain,
    ! [SV461: $i,SV533: $i] :
      ( ( ( in @ ( sK41_C @ SV533 @ SV461 ) @ SV533 )
        = $false )
      | ( ( element @ SV461 @ ( powerset @ SV533 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2690]) ).

thf(2789,plain,
    ! [SV462: $i,SV602: $i] :
      ( ( ( ~ ( subset @ SV602 @ ( sK9_B @ SV462 ) ) )
        = $true )
      | ( ( are_equipotent @ SV602 @ ( sK9_B @ SV462 ) )
        = $true )
      | ( ( in @ SV602 @ ( sK9_B @ SV462 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2691]) ).

thf(2790,plain,
    ! [SV462: $i] :
      ( ( ! [SY792: $i] :
            ( ~ ( in @ SY792 @ ( sK9_B @ SV462 ) )
            | ( in @ ( powerset @ SY792 ) @ ( sK9_B @ SV462 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2692]) ).

thf(2791,plain,
    ! [SV462: $i] :
      ( ( ~ ( ~ ! [SY793: $i,SY794: $i] :
                  ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
                  | ~ ( subset @ SY794 @ SY793 )
                  | ( in @ SY794 @ ( sK9_B @ SV462 ) ) )
            | ~ ( in @ SV462 @ ( sK9_B @ SV462 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2693]) ).

thf(2792,plain,
    ! [SV661: $i,SV534: $i,SV645: $i,SV463: $i] :
      ( ( ~ ( in @ SV463 @ SV645 )
        | ~ ( in @ SV534 @ SV661 )
        | ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV645 @ SV661 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2694]) ).

thf(2793,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ~ ! [SY883: $i] :
              ( ! [SY884: $i] :
                  ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY883 @ SY884 ) )
              | ( in @ SV463 @ SY883 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2695]) ).

thf(2794,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ~ ! [SY885: $i,SY886: $i] :
              ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY885 @ SY886 ) )
              | ( in @ SV534 @ SY886 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2695]) ).

thf(2795,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
                  | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
                  | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
              | ~ ~ ( ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
                        | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
                    | ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
                        | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) ) ) ) )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2696]) ).

thf(2796,plain,
    ! [SV604: $i,SV464: $i,SV647: $i] :
      ( ( ( ( SV647
           != ( set_intersection2 @ SV464 @ SV604 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY995: $i] :
                    ( ~ ( in @ SY995 @ SV464 )
                    | ~ ( in @ SY995 @ SV604 )
                    | ( in @ SY995 @ SV647 ) )
              | ~ ~ ( ~ ! [SY996: $i] :
                          ( ~ ( in @ SY996 @ SV647 )
                          | ( in @ SY996 @ SV464 ) )
                    | ~ ! [SY997: $i] :
                          ( ~ ( in @ SY997 @ SV647 )
                          | ( in @ SY997 @ SV604 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2697]) ).

thf(2797,plain,
    ! [SV605: $i,SV561: $i] :
      ( ( ( subset @ SV561 @ ( singleton @ SV605 ) )
        = $false )
      | ( ( ( SV561 = empty_set )
          | ( SV561
            = ( singleton @ SV605 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2698]) ).

thf(2798,plain,
    ! [SV662: $i] :
      ( ( ( SV662 != empty_set )
        | ! [SY1014: $i] : ( subset @ SV662 @ ( singleton @ SY1014 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2699]) ).

thf(2799,plain,
    ! [SV663: $i] :
      ( ( ! [SY1015: $i] :
            ( ( SV663
             != ( singleton @ SY1015 ) )
            | ( subset @ SV663 @ ( singleton @ SY1015 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2700]) ).

thf(2800,plain,
    ! [SV664: $i] :
      ( ( ( SV664 = empty_set )
        | ! [SY1016: $i] :
            ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SY1016 @ SV664 ) @ SV664 )
                        | ~ ~ ( in @ ( sK37_C @ SY1016 @ SV664 ) @ ( sK38_SY319 @ SY1016 @ SV664 ) ) )
                    | ~ ( in @ ( sK37_C @ SY1016 @ SV664 ) @ SY1016 ) )
                | ~ ( ! [SY1017: $i] :
                        ( ~ ( in @ SY1017 @ SV664 )
                        | ( in @ ( sK37_C @ SY1016 @ SV664 ) @ SY1017 ) )
                    | ( in @ ( sK37_C @ SY1016 @ SV664 ) @ SY1016 ) ) )
            | ( SY1016
              = ( set_meet @ SV664 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2701]) ).

thf(2801,plain,
    ! [SV665: $i] :
      ( ( ( SV665 = empty_set )
        | ! [SY1018: $i] :
            ( ( SY1018
             != ( set_meet @ SV665 ) )
            | ~ ( ~ ! [SY1019: $i] :
                      ( ~ ( ~ ( in @ ( sK36_D @ SY1019 @ SY1018 @ SV665 ) @ SV665 )
                          | ~ ~ ( in @ SY1019 @ ( sK36_D @ SY1019 @ SY1018 @ SV665 ) ) )
                      | ( in @ SY1019 @ SY1018 ) )
                | ~ ! [SY1020: $i] :
                      ( ~ ( in @ SY1020 @ SY1018 )
                      | ! [SY1021: $i] :
                          ( ~ ( in @ SY1021 @ SV665 )
                          | ( in @ SY1020 @ SY1021 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2702]) ).

thf(2802,plain,
    ! [SV666: $i] :
      ( ( ( SV666 != empty_set )
        | ! [SY1022: $i] :
            ( ( SY1022
             != ( set_meet @ SV666 ) )
            | ( SY1022 = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2703]) ).

thf(2803,plain,
    ! [SV667: $i] :
      ( ( ( SV667 != empty_set )
        | ! [SY1023: $i] :
            ( ( SY1023 != empty_set )
            | ( SY1023
              = ( set_meet @ SV667 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2704]) ).

thf(2804,plain,
    ! [SV668: $i] :
      ( ( ( empty @ SV668 )
        | ! [SY1024: $i] :
            ( ~ ( element @ SY1024 @ SV668 )
            | ( in @ SY1024 @ SV668 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2705]) ).

thf(2805,plain,
    ! [SV669: $i] :
      ( ( ( empty @ SV669 )
        | ! [SY1025: $i] :
            ( ~ ( in @ SY1025 @ SV669 )
            | ( element @ SY1025 @ SV669 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2706]) ).

thf(2806,plain,
    ! [SV670: $i] :
      ( ( ~ ( empty @ SV670 )
        | ! [SY1026: $i] :
            ( ~ ( element @ SY1026 @ SV670 )
            | ( empty @ SY1026 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2707]) ).

thf(2807,plain,
    ! [SV671: $i] :
      ( ( ~ ( empty @ SV671 )
        | ! [SY1027: $i] :
            ( ~ ( empty @ SY1027 )
            | ( element @ SY1027 @ SV671 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2708]) ).

thf(2808,plain,
    ! [SV606: $i,SV562: $i] :
      ( ( ( in @ SV562 @ SV606 )
        = $false )
      | ( ( subset @ ( singleton @ SV562 ) @ SV606 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2709]) ).

thf(2809,plain,
    ! [SV607: $i,SV563: $i] :
      ( ( ( subset @ ( singleton @ SV563 ) @ SV607 )
        = $false )
      | ( ( in @ SV563 @ SV607 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2710]) ).

thf(2810,plain,
    ! [SV608: $i,SV564: $i] :
      ( ( ( SV564 = SV608 )
        = $true )
      | ( ( ~ ( subset @ SV564 @ SV608 ) )
        = $true )
      | ( ( proper_subset @ SV564 @ SV608 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2711]) ).

thf(2811,plain,
    ! [SV672: $i] :
      ( ( ! [SY1028: $i] :
            ( ~ ( proper_subset @ SV672 @ SY1028 )
            | ( SV672 != SY1028 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2712]) ).

thf(2812,plain,
    ! [SV673: $i] :
      ( ( ! [SY1029: $i] :
            ( ~ ( proper_subset @ SV673 @ SY1029 )
            | ( subset @ SV673 @ SY1029 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2713]) ).

thf(2813,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
                  | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
                  | ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
              | ~ ~ ( ~ ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
                        | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
                    | ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
                        | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) ) ) ) )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2714]) ).

thf(2814,plain,
    ! [SV610: $i,SV465: $i,SV649: $i] :
      ( ( ( ( SV649
           != ( set_difference @ SV465 @ SV610 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY998: $i] :
                    ( ~ ( in @ SY998 @ SV465 )
                    | ( in @ SY998 @ SV610 )
                    | ( in @ SY998 @ SV649 ) )
              | ~ ~ ( ~ ! [SY999: $i] :
                          ( ~ ( in @ SY999 @ SV649 )
                          | ( in @ SY999 @ SV465 ) )
                    | ~ ! [SY1000: $i] :
                          ( ~ ( in @ SY1000 @ SV649 )
                          | ~ ( in @ SY1000 @ SV610 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2715]) ).

thf(2815,plain,
    ! [SV674: $i,SV535: $i,SV650: $i,SV466: $i] :
      ( ( ~ ( in @ SV466 @ SV650 )
        | ~ ( in @ SV535 @ SV674 )
        | ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV650 @ SV674 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2716]) ).

thf(2816,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ~ ! [SY889: $i] :
              ( ! [SY890: $i] :
                  ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY889 @ SY890 ) )
              | ( in @ SV466 @ SY889 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2717]) ).

thf(2817,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ~ ! [SY891: $i,SY892: $i] :
              ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY891 @ SY892 ) )
              | ( in @ SV535 @ SY892 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2717]) ).

thf(2818,plain,
    ! [SV611: $i,SV467: $i] :
      ( ( ( subset @ SV467 @ SV611 )
        = $false )
      | ( ( ! [SY965: $i] : ( subset @ ( cartesian_product2 @ SV467 @ SY965 ) @ ( cartesian_product2 @ SV611 @ SY965 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2718]) ).

thf(2819,plain,
    ! [SV612: $i,SV467: $i] :
      ( ( ( subset @ SV467 @ SV612 )
        = $false )
      | ( ( ! [SY966: $i] : ( subset @ ( cartesian_product2 @ SY966 @ SV467 ) @ ( cartesian_product2 @ SY966 @ SV612 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2719]) ).

thf(2820,plain,
    ! [SV468: $i,SV675: $i] :
      ( ( ( ~ ( ~ ( ! [SY1030: $i] :
                      ~ ( in @ ( ordered_pair @ SY1030 @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
                  | ~ ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV675 @ SV468 ) @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
                  | ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) ) )
          | ( SV675
            = ( relation_rng @ SV468 ) ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2720]) ).

thf(2821,plain,
    ! [SV468: $i,SV676: $i] :
      ( ( ( ( SV676
           != ( relation_rng @ SV468 ) )
          | ~ ( ~ ! [SY1031: $i] :
                    ( ! [SY831: $i] :
                        ~ ( in @ ( ordered_pair @ SY831 @ SY1031 ) @ SV468 )
                    | ( in @ SY1031 @ SV676 ) )
              | ~ ! [SY1033: $i] :
                    ( ~ ( in @ SY1033 @ SV676 )
                    | ( in @ ( ordered_pair @ ( sK14_D @ SY1033 @ SV676 @ SV468 ) @ SY1033 ) @ SV468 ) ) ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2721]) ).

thf(2822,plain,
    ! [SV566: $i,SV677: $i] :
      ( ( ( ~ ( in @ SV677 @ SV566 ) )
        = $true )
      | ( ( SV566 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2722]) ).

thf(2823,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( ~ ( ( ( sK35_C @ SV613 @ SV567 )
               != SV567 )
              | ~ ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) )
          | ~ ( ( ( sK35_C @ SV613 @ SV567 )
                = SV567 )
              | ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) ) )
        = $false )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2723]) ).

thf(2824,plain,
    ! [SV568: $i,SV614: $i] :
      ( ( ( SV614
          = ( singleton @ SV568 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY967: $i] :
                    ( ( SY967 != SV568 )
                    | ( in @ SY967 @ SV614 ) )
              | ~ ! [SY968: $i] :
                    ( ~ ( in @ SY968 @ SV614 )
                    | ( SY968 = SV568 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2724]) ).

thf(2825,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ~ ( ! [SY969: $i] :
                  ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SY969 )
                  | ~ ( in @ SY969 @ SV569 ) )
              | ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
          | ~ ( ~ ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ ( sK20_SY310 @ SV615 @ SV569 ) )
                  | ~ ( in @ ( sK20_SY310 @ SV615 @ SV569 ) @ SV569 ) )
              | ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) ) )
        = $false )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2725]) ).

thf(2826,plain,
    ! [SV570: $i,SV616: $i] :
      ( ( ( SV616
          = ( union @ SV570 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY970: $i] :
                    ( ! [SY920: $i] :
                        ( ~ ( in @ SY970 @ SY920 )
                        | ~ ( in @ SY920 @ SV570 ) )
                    | ( in @ SY970 @ SV616 ) )
              | ~ ! [SY972: $i] :
                    ( ~ ( in @ SY972 @ SV616 )
                    | ~ ( ~ ( in @ SY972 @ ( sK18_D @ SY972 @ SV616 @ SV570 ) )
                        | ~ ( in @ ( sK18_D @ SY972 @ SV616 @ SV570 ) @ SV570 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2726]) ).

thf(2827,plain,
    ! [SV617: $i,SV571: $i] :
      ( ( ( subset @ SV571 @ ( singleton @ SV617 ) )
        = $false )
      | ( ( ( SV571 = empty_set )
          | ( SV571
            = ( singleton @ SV617 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2727]) ).

thf(2828,plain,
    ! [SV678: $i] :
      ( ( ( SV678 != empty_set )
        | ! [SY1034: $i] : ( subset @ SV678 @ ( singleton @ SY1034 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2728]) ).

thf(2829,plain,
    ! [SV679: $i] :
      ( ( ! [SY1035: $i] :
            ( ( SV679
             != ( singleton @ SY1035 ) )
            | ( subset @ SV679 @ ( singleton @ SY1035 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2729]) ).

thf(2830,plain,
    ! [SV618: $i,SV572: $i] :
      ( ( ( ( set_difference @ SV572 @ ( singleton @ SV618 ) )
          = SV572 )
        = $false )
      | ( ( ~ ( in @ SV618 @ SV572 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2730]) ).

thf(2831,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                        | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) )
                    | ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                        | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) )
              | ~ ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                  | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 )
                  | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2732]) ).

thf(2832,plain,
    ! [SV621: $i,SV470: $i,SV652: $i] :
      ( ( ( ( SV652
           != ( set_union2 @ SV470 @ SV621 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1002: $i] :
                    ( ~ ( in @ SY1002 @ SV652 )
                    | ( in @ SY1002 @ SV470 )
                    | ( in @ SY1002 @ SV621 ) )
              | ~ ~ ( ~ ! [SY1003: $i] :
                          ( ~ ( in @ SY1003 @ SV470 )
                          | ( in @ SY1003 @ SV652 ) )
                    | ~ ! [SY1004: $i] :
                          ( ~ ( in @ SY1004 @ SV621 )
                          | ( in @ SY1004 @ SV652 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2733]) ).

thf(2833,plain,
    ! [SV622: $i,SV574: $i] :
      ( ( ( ( set_difference @ SV574 @ SV622 )
          = SV574 )
        = $false )
      | ( ( disjoint @ SV574 @ SV622 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2734]) ).

thf(2834,plain,
    ! [SV623: $i,SV575: $i] :
      ( ( ( disjoint @ SV575 @ SV623 )
        = $false )
      | ( ( ( set_difference @ SV575 @ SV623 )
          = SV575 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2735]) ).

thf(2835,plain,
    ! [SV536: $i,SV471: $i] :
      ( ( ( ! [SY893: $i] :
              ( ~ ( element @ SY893 @ ( powerset @ SV471 ) )
              | ~ ( disjoint @ SV536 @ SY893 )
              | ( subset @ SV536 @ ( subset_complement @ SV471 @ SY893 ) ) ) )
        = $true )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2736]) ).

thf(2836,plain,
    ! [SV536: $i,SV471: $i] :
      ( ( ( ! [SY894: $i] :
              ( ~ ( element @ SY894 @ ( powerset @ SV471 ) )
              | ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SY894 ) )
              | ( disjoint @ SV536 @ SY894 ) ) )
        = $true )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2737]) ).

thf(2837,plain,
    ! [SV624: $i,SV576: $i] :
      ( ( ( ~ ( subset @ SV576 @ SV624 ) )
        = $true )
      | ( ( ~ ( subset @ SV624 @ SV576 ) )
        = $true )
      | ( ( SV576 = SV624 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2738]) ).

thf(2838,plain,
    ! [SV680: $i] :
      ( ( ! [SY1036: $i] :
            ( ( SV680 != SY1036 )
            | ( subset @ SV680 @ SY1036 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2739]) ).

thf(2839,plain,
    ! [SV681: $i] :
      ( ( ! [SY1037: $i] :
            ( ( SV681 != SY1037 )
            | ( subset @ SY1037 @ SV681 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2740]) ).

thf(2840,plain,
    ! [SV625: $i,SV577: $i] :
      ( ( ( element @ SV577 @ ( powerset @ SV625 ) )
        = $false )
      | ( ( subset @ SV577 @ SV625 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2741]) ).

thf(2841,plain,
    ! [SV626: $i,SV578: $i] :
      ( ( ( subset @ SV578 @ SV626 )
        = $false )
      | ( ( element @ SV578 @ ( powerset @ SV626 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2742]) ).

thf(2842,plain,
    ! [SV627: $i,SV579: $i] :
      ( ( ( ( set_difference @ SV579 @ SV627 )
          = empty_set )
        = $false )
      | ( ( subset @ SV579 @ SV627 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2743]) ).

thf(2843,plain,
    ! [SV628: $i,SV580: $i] :
      ( ( ( subset @ SV580 @ SV628 )
        = $false )
      | ( ( ( set_difference @ SV580 @ SV628 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2744]) ).

thf(2844,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                        | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                         != SV472 ) )
                    | ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                        | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                         != SV629 ) ) )
              | ~ ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                  | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                    = SV472 )
                  | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                    = SV629 ) ) ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2745]) ).

thf(2845,plain,
    ! [SV630: $i,SV472: $i,SV654: $i] :
      ( ( ( ( SV654
           != ( unordered_pair @ SV472 @ SV630 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1005: $i] :
                    ( ~ ( in @ SY1005 @ SV654 )
                    | ( SY1005 = SV472 )
                    | ( SY1005 = SV630 ) )
              | ~ ~ ( ~ ! [SY1006: $i] :
                          ( ( SY1006 != SV472 )
                          | ( in @ SY1006 @ SV654 ) )
                    | ~ ! [SY1007: $i] :
                          ( ( SY1007 != SV630 )
                          | ( in @ SY1007 @ SV654 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2746]) ).

thf(2846,plain,
    ! [SV631: $i,SV581: $i] :
      ( ( ( ( set_intersection2 @ SV581 @ SV631 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV581 @ SV631 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2747]) ).

thf(2847,plain,
    ! [SV632: $i,SV582: $i] :
      ( ( ( disjoint @ SV582 @ SV632 )
        = $false )
      | ( ( ( set_intersection2 @ SV582 @ SV632 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2748]) ).

thf(2848,plain,
    ! [SV583: $i,SV633: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV583 )
          | ~ ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV633 ) )
        = $false )
      | ( ( disjoint @ SV583 @ SV633 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2749]) ).

thf(2849,plain,
    ! [SV634: $i,SV584: $i,SV682: $i] :
      ( ( ( ~ ( in @ SV682 @ SV584 )
          | ~ ( in @ SV682 @ SV634 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV584 @ SV634 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2750]) ).

thf(2850,plain,
    ! [SV585: $i,SV635: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV585 )
          | ~ ~ ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV635 ) )
        = $false )
      | ( ( subset @ SV585 @ SV635 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2751]) ).

thf(2851,plain,
    ! [SV636: $i,SV586: $i] :
      ( ( ( subset @ SV586 @ SV636 )
        = $false )
      | ( ( ! [SY984: $i] :
              ( ~ ( in @ SY984 @ SV586 )
              | ( in @ SY984 @ SV636 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2752]) ).

thf(2852,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
              | ~ ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) )
          | ~ ( ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
              | ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) ) )
        = $false )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2753]) ).

thf(2853,plain,
    ! [SV588: $i,SV638: $i] :
      ( ( ( SV638
          = ( powerset @ SV588 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY985: $i] :
                    ( ~ ( in @ SY985 @ SV638 )
                    | ( subset @ SY985 @ SV588 ) )
              | ~ ! [SY986: $i] :
                    ( ~ ( subset @ SY986 @ SV588 )
                    | ( in @ SY986 @ SV638 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2754]) ).

thf(2854,plain,
    ! [SV655: $i,SV537: $i,SV473: $i] :
      ( ( ( ! [SY1008: $i] :
              ( ( ordered_pair @ SV473 @ SV537 )
             != ( ordered_pair @ SV655 @ SY1008 ) ) )
        = $true )
      | ( ( SV473 = SV655 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2755]) ).

thf(2855,plain,
    ! [SV683: $i,SV656: $i,SV537: $i,SV473: $i] :
      ( ( ( ( ordered_pair @ SV473 @ SV537 )
         != ( ordered_pair @ SV656 @ SV683 ) )
        | ( SV537 = SV683 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2756]) ).

thf(2856,plain,
    ! [SV639: $i,SV589: $i] :
      ( ( ( in @ SV589 @ SV639 )
        = $false )
      | ( ( subset @ ( singleton @ SV589 ) @ SV639 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2758]) ).

thf(2857,plain,
    ! [SV640: $i,SV590: $i] :
      ( ( ( subset @ ( singleton @ SV590 ) @ SV640 )
        = $false )
      | ( ( in @ SV590 @ SV640 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2759]) ).

thf(2858,plain,
    ! [SV641: $i,SV657: $i,SV475: $i] :
      ( ( ( ~ ( in @ SV475 @ SV657 )
          | ~ ( in @ SV641 @ SV657 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV475 @ SV641 ) @ SV657 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2760]) ).

thf(2859,plain,
    ! [SV475: $i] :
      ( ( ! [SY857: $i,SY858: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV475 @ SY857 ) @ SY858 )
            | ( in @ SV475 @ SY858 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2761]) ).

thf(2860,plain,
    ! [SV475: $i] :
      ( ( ! [SY859: $i,SY860: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV475 @ SY859 ) @ SY860 )
            | ( in @ SY859 @ SY860 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2762]) ).

thf(2861,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) )
        = $true )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2763]) ).

thf(2862,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
        = $true )
      | ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 )
        = $true )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2764]) ).

thf(2863,plain,
    ! [SV493: $i,SV399: $i,SV555: $i,SV541: $i] :
      ( ( ( subset @ SV541 @ SV555 )
        = $false )
      | ( ( subset @ SV399 @ SV493 )
        = $false )
      | ( ( subset @ ( cartesian_product2 @ SV399 @ SV541 ) @ ( cartesian_product2 @ SV493 @ SV555 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2768]) ).

thf(2864,plain,
    ! [SV544: $i,SV415: $i,SV642: $i] :
      ( ( ( element @ SV642 @ SV415 )
        = $false )
      | ( ( ( in @ SV642 @ SV544 )
          | ( in @ SV642 @ ( subset_complement @ SV415 @ SV544 ) ) )
        = $true )
      | ( ( element @ SV544 @ ( powerset @ SV415 ) )
        = $false )
      | ( ( SV415 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2771]) ).

thf(2865,plain,
    ! [SV416: $i,SV545: $i,SV507: $i] :
      ( ( ( in @ SV507 @ SV545 )
        = $false )
      | ( ( in @ SV507 @ ( subset_complement @ SV416 @ SV545 ) )
        = $false )
      | ( ( element @ SV545 @ ( powerset @ SV416 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2772]) ).

thf(2866,plain,
    ! [SV455: $i,SV531: $i,SV553: $i] :
      ( ( ( empty @ SV553 )
        = $false )
      | ( ( element @ SV531 @ ( powerset @ SV553 ) )
        = $false )
      | ( ( in @ SV455 @ SV531 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2777]) ).

thf(2867,plain,
    ! [SV598: $i,SV560: $i,SV658: $i] :
      ( ( ( in @ SV658 @ ( set_intersection2 @ SV560 @ SV598 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV560 @ SV598 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2780]) ).

thf(2868,plain,
    ! [SV643: $i,SV599: $i,SV458: $i] :
      ( ( ( ~ ( ! [SY988: $i,SY989: $i] :
                  ( ~ ( in @ SY988 @ SV458 )
                  | ~ ( in @ SY989 @ SV599 )
                  | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
                   != ( ordered_pair @ SY988 @ SY989 ) ) )
              | ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
          | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
                        | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) )
                  | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
                   != ( ordered_pair @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) ) ) )
              | ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) ) )
        = $false )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2781]) ).

thf(2869,plain,
    ! [SV600: $i,SV458: $i,SV644: $i] :
      ( ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY990: $i] :
                    ( ! [SY952: $i,SY953: $i] :
                        ( ~ ( in @ SY952 @ SV458 )
                        | ~ ( in @ SY953 @ SV600 )
                        | ( SY990
                         != ( ordered_pair @ SY952 @ SY953 ) ) )
                    | ( in @ SY990 @ SV644 ) )
              | ~ ! [SY993: $i] :
                    ( ~ ( in @ SY993 @ SV644 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                              | ~ ( in @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
                        | ( SY993
                         != ( ordered_pair @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2782]) ).

thf(2870,plain,
    ! [SV459: $i,SV659: $i] :
      ( ( ( ~ ( ~ ( ! [SY1010: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ SY1010 ) @ SV459 )
                  | ~ ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ ( sK23_SY312 @ SV659 @ SV459 ) ) @ SV459 )
                  | ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) ) ) )
        = $true )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2783]) ).

thf(2871,plain,
    ! [SV459: $i,SV660: $i] :
      ( ( ( ( SV660
           != ( relation_dom @ SV459 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1011: $i] :
                    ( ! [SY783: $i] :
                        ~ ( in @ ( ordered_pair @ SY1011 @ SY783 ) @ SV459 )
                    | ( in @ SY1011 @ SV660 ) )
              | ~ ! [SY1013: $i] :
                    ( ~ ( in @ SY1013 @ SV660 )
                    | ( in @ ( ordered_pair @ SY1013 @ ( sK21_D @ SY1013 @ SV660 @ SV459 ) ) @ SV459 ) ) ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2784]) ).

thf(2872,plain,
    ! [SV460: $i,SV601: $i] :
      ( ( ( subset @ SV601 @ ( sK10_B @ SV460 ) )
        = $false )
      | ( ( are_equipotent @ SV601 @ ( sK10_B @ SV460 ) )
        = $true )
      | ( ( in @ SV601 @ ( sK10_B @ SV460 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2785]) ).

thf(2873,plain,
    ! [SV460: $i,SV684: $i] :
      ( ( ~ ( ~ ! [SY1038: $i] :
                  ( ~ ( subset @ SY1038 @ SV684 )
                  | ( in @ SY1038 @ ( sK11_SY302 @ SV684 @ SV460 ) ) )
            | ~ ( in @ ( sK11_SY302 @ SV684 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
        | ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2786]) ).

thf(2874,plain,
    ! [SV460: $i] :
      ( ( ~ ! [SY788: $i,SY789: $i] :
              ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
              | ~ ( subset @ SY789 @ SY788 )
              | ( in @ SY789 @ ( sK10_B @ SV460 ) ) )
        | ~ ( in @ SV460 @ ( sK10_B @ SV460 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2787]) ).

thf(2875,plain,
    ! [SV462: $i,SV602: $i] :
      ( ( ( subset @ SV602 @ ( sK9_B @ SV462 ) )
        = $false )
      | ( ( are_equipotent @ SV602 @ ( sK9_B @ SV462 ) )
        = $true )
      | ( ( in @ SV602 @ ( sK9_B @ SV462 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2789]) ).

thf(2876,plain,
    ! [SV462: $i,SV685: $i] :
      ( ( ~ ( in @ SV685 @ ( sK9_B @ SV462 ) )
        | ( in @ ( powerset @ SV685 ) @ ( sK9_B @ SV462 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2790]) ).

thf(2877,plain,
    ! [SV462: $i] :
      ( ( ~ ! [SY793: $i,SY794: $i] :
              ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
              | ~ ( subset @ SY794 @ SY793 )
              | ( in @ SY794 @ ( sK9_B @ SV462 ) ) )
        | ~ ( in @ SV462 @ ( sK9_B @ SV462 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[2791]) ).

thf(2878,plain,
    ! [SV661: $i,SV534: $i,SV645: $i,SV463: $i] :
      ( ( ( ~ ( in @ SV463 @ SV645 )
          | ~ ( in @ SV534 @ SV661 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV645 @ SV661 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2792]) ).

thf(2879,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ! [SY883: $i] :
            ( ! [SY884: $i] :
                ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY883 @ SY884 ) )
            | ( in @ SV463 @ SY883 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2793]) ).

thf(2880,plain,
    ! [SV534: $i,SV463: $i] :
      ( ( ! [SY885: $i,SY886: $i] :
            ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SY885 @ SY886 ) )
            | ( in @ SV534 @ SY886 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2794]) ).

thf(2881,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
              | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
              | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
          | ~ ~ ( ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
                    | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
                | ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
                    | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) ) ) )
        = $false )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2795]) ).

thf(2882,plain,
    ! [SV604: $i,SV464: $i,SV647: $i] :
      ( ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY995: $i] :
                    ( ~ ( in @ SY995 @ SV464 )
                    | ~ ( in @ SY995 @ SV604 )
                    | ( in @ SY995 @ SV647 ) )
              | ~ ~ ( ~ ! [SY996: $i] :
                          ( ~ ( in @ SY996 @ SV647 )
                          | ( in @ SY996 @ SV464 ) )
                    | ~ ! [SY997: $i] :
                          ( ~ ( in @ SY997 @ SV647 )
                          | ( in @ SY997 @ SV604 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2796]) ).

thf(2883,plain,
    ! [SV605: $i,SV561: $i] :
      ( ( ( SV561 = empty_set )
        = $true )
      | ( ( SV561
          = ( singleton @ SV605 ) )
        = $true )
      | ( ( subset @ SV561 @ ( singleton @ SV605 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2797]) ).

thf(2884,plain,
    ! [SV662: $i] :
      ( ( ( ( SV662 != empty_set ) )
        = $true )
      | ( ( ! [SY1014: $i] : ( subset @ SV662 @ ( singleton @ SY1014 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2798]) ).

thf(2885,plain,
    ! [SV686: $i,SV663: $i] :
      ( ( ( SV663
         != ( singleton @ SV686 ) )
        | ( subset @ SV663 @ ( singleton @ SV686 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2799]) ).

thf(2886,plain,
    ! [SV664: $i] :
      ( ( ( SV664 = empty_set )
        = $true )
      | ( ( ! [SY1016: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SY1016 @ SV664 ) @ SV664 )
                          | ~ ~ ( in @ ( sK37_C @ SY1016 @ SV664 ) @ ( sK38_SY319 @ SY1016 @ SV664 ) ) )
                      | ~ ( in @ ( sK37_C @ SY1016 @ SV664 ) @ SY1016 ) )
                  | ~ ( ! [SY1017: $i] :
                          ( ~ ( in @ SY1017 @ SV664 )
                          | ( in @ ( sK37_C @ SY1016 @ SV664 ) @ SY1017 ) )
                      | ( in @ ( sK37_C @ SY1016 @ SV664 ) @ SY1016 ) ) )
              | ( SY1016
                = ( set_meet @ SV664 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2800]) ).

thf(2887,plain,
    ! [SV665: $i] :
      ( ( ( SV665 = empty_set )
        = $true )
      | ( ( ! [SY1018: $i] :
              ( ( SY1018
               != ( set_meet @ SV665 ) )
              | ~ ( ~ ! [SY1019: $i] :
                        ( ~ ( ~ ( in @ ( sK36_D @ SY1019 @ SY1018 @ SV665 ) @ SV665 )
                            | ~ ~ ( in @ SY1019 @ ( sK36_D @ SY1019 @ SY1018 @ SV665 ) ) )
                        | ( in @ SY1019 @ SY1018 ) )
                  | ~ ! [SY1020: $i] :
                        ( ~ ( in @ SY1020 @ SY1018 )
                        | ! [SY1021: $i] :
                            ( ~ ( in @ SY1021 @ SV665 )
                            | ( in @ SY1020 @ SY1021 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2801]) ).

thf(2888,plain,
    ! [SV666: $i] :
      ( ( ( ( SV666 != empty_set ) )
        = $true )
      | ( ( ! [SY1022: $i] :
              ( ( SY1022
               != ( set_meet @ SV666 ) )
              | ( SY1022 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2802]) ).

thf(2889,plain,
    ! [SV667: $i] :
      ( ( ( ( SV667 != empty_set ) )
        = $true )
      | ( ( ! [SY1023: $i] :
              ( ( SY1023 != empty_set )
              | ( SY1023
                = ( set_meet @ SV667 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2803]) ).

thf(2890,plain,
    ! [SV668: $i] :
      ( ( ( empty @ SV668 )
        = $true )
      | ( ( ! [SY1024: $i] :
              ( ~ ( element @ SY1024 @ SV668 )
              | ( in @ SY1024 @ SV668 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2804]) ).

thf(2891,plain,
    ! [SV669: $i] :
      ( ( ( empty @ SV669 )
        = $true )
      | ( ( ! [SY1025: $i] :
              ( ~ ( in @ SY1025 @ SV669 )
              | ( element @ SY1025 @ SV669 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2805]) ).

thf(2892,plain,
    ! [SV670: $i] :
      ( ( ( ~ ( empty @ SV670 ) )
        = $true )
      | ( ( ! [SY1026: $i] :
              ( ~ ( element @ SY1026 @ SV670 )
              | ( empty @ SY1026 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2806]) ).

thf(2893,plain,
    ! [SV671: $i] :
      ( ( ( ~ ( empty @ SV671 ) )
        = $true )
      | ( ( ! [SY1027: $i] :
              ( ~ ( empty @ SY1027 )
              | ( element @ SY1027 @ SV671 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2807]) ).

thf(2894,plain,
    ! [SV608: $i,SV564: $i] :
      ( ( ( subset @ SV564 @ SV608 )
        = $false )
      | ( ( SV564 = SV608 )
        = $true )
      | ( ( proper_subset @ SV564 @ SV608 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2810]) ).

thf(2895,plain,
    ! [SV687: $i,SV672: $i] :
      ( ( ~ ( proper_subset @ SV672 @ SV687 )
        | ( SV672 != SV687 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2811]) ).

thf(2896,plain,
    ! [SV688: $i,SV673: $i] :
      ( ( ~ ( proper_subset @ SV673 @ SV688 )
        | ( subset @ SV673 @ SV688 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2812]) ).

thf(2897,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
              | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
              | ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
          | ~ ~ ( ~ ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
                    | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
                | ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
                    | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) ) ) )
        = $false )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2813]) ).

thf(2898,plain,
    ! [SV610: $i,SV465: $i,SV649: $i] :
      ( ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY998: $i] :
                    ( ~ ( in @ SY998 @ SV465 )
                    | ( in @ SY998 @ SV610 )
                    | ( in @ SY998 @ SV649 ) )
              | ~ ~ ( ~ ! [SY999: $i] :
                          ( ~ ( in @ SY999 @ SV649 )
                          | ( in @ SY999 @ SV465 ) )
                    | ~ ! [SY1000: $i] :
                          ( ~ ( in @ SY1000 @ SV649 )
                          | ~ ( in @ SY1000 @ SV610 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2814]) ).

thf(2899,plain,
    ! [SV674: $i,SV535: $i,SV650: $i,SV466: $i] :
      ( ( ( ~ ( in @ SV466 @ SV650 )
          | ~ ( in @ SV535 @ SV674 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV650 @ SV674 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2815]) ).

thf(2900,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ! [SY889: $i] :
            ( ! [SY890: $i] :
                ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY889 @ SY890 ) )
            | ( in @ SV466 @ SY889 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2816]) ).

thf(2901,plain,
    ! [SV535: $i,SV466: $i] :
      ( ( ! [SY891: $i,SY892: $i] :
            ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SY891 @ SY892 ) )
            | ( in @ SV535 @ SY892 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2817]) ).

thf(2902,plain,
    ! [SV611: $i,SV689: $i,SV467: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV467 @ SV689 ) @ ( cartesian_product2 @ SV611 @ SV689 ) )
        = $true )
      | ( ( subset @ SV467 @ SV611 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2818]) ).

thf(2903,plain,
    ! [SV612: $i,SV467: $i,SV690: $i] :
      ( ( ( subset @ ( cartesian_product2 @ SV690 @ SV467 ) @ ( cartesian_product2 @ SV690 @ SV612 ) )
        = $true )
      | ( ( subset @ SV467 @ SV612 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2819]) ).

thf(2904,plain,
    ! [SV468: $i,SV675: $i] :
      ( ( ( ~ ( ~ ( ! [SY1030: $i] :
                      ~ ( in @ ( ordered_pair @ SY1030 @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
                  | ~ ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV675 @ SV468 ) @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
                  | ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) ) ) )
        = $true )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2820]) ).

thf(2905,plain,
    ! [SV468: $i,SV676: $i] :
      ( ( ( ( SV676
           != ( relation_rng @ SV468 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1031: $i] :
                    ( ! [SY831: $i] :
                        ~ ( in @ ( ordered_pair @ SY831 @ SY1031 ) @ SV468 )
                    | ( in @ SY1031 @ SV676 ) )
              | ~ ! [SY1033: $i] :
                    ( ~ ( in @ SY1033 @ SV676 )
                    | ( in @ ( ordered_pair @ ( sK14_D @ SY1033 @ SV676 @ SV468 ) @ SY1033 ) @ SV468 ) ) ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2821]) ).

thf(2906,plain,
    ! [SV566: $i,SV677: $i] :
      ( ( ( in @ SV677 @ SV566 )
        = $false )
      | ( ( SV566 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2822]) ).

thf(2907,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( ~ ( ( ( sK35_C @ SV613 @ SV567 )
               != SV567 )
              | ~ ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) ) )
        = $false )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2823]) ).

thf(2908,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( ~ ( ( ( sK35_C @ SV613 @ SV567 )
                = SV567 )
              | ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) ) )
        = $false )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2823]) ).

thf(2909,plain,
    ! [SV614: $i,SV568: $i] :
      ( ( ( ~ ! [SY967: $i] :
                ( ( SY967 != SV568 )
                | ( in @ SY967 @ SV614 ) )
          | ~ ! [SY968: $i] :
                ( ~ ( in @ SY968 @ SV614 )
                | ( SY968 = SV568 ) ) )
        = $false )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2824]) ).

thf(2910,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ~ ( ! [SY969: $i] :
                  ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SY969 )
                  | ~ ( in @ SY969 @ SV569 ) )
              | ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) ) )
        = $false )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2825]) ).

thf(2911,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ ( sK20_SY310 @ SV615 @ SV569 ) )
                  | ~ ( in @ ( sK20_SY310 @ SV615 @ SV569 ) @ SV569 ) )
              | ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) ) )
        = $false )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2825]) ).

thf(2912,plain,
    ! [SV616: $i,SV570: $i] :
      ( ( ( ~ ! [SY970: $i] :
                ( ! [SY920: $i] :
                    ( ~ ( in @ SY970 @ SY920 )
                    | ~ ( in @ SY920 @ SV570 ) )
                | ( in @ SY970 @ SV616 ) )
          | ~ ! [SY972: $i] :
                ( ~ ( in @ SY972 @ SV616 )
                | ~ ( ~ ( in @ SY972 @ ( sK18_D @ SY972 @ SV616 @ SV570 ) )
                    | ~ ( in @ ( sK18_D @ SY972 @ SV616 @ SV570 ) @ SV570 ) ) ) )
        = $false )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2826]) ).

thf(2913,plain,
    ! [SV617: $i,SV571: $i] :
      ( ( ( SV571 = empty_set )
        = $true )
      | ( ( SV571
          = ( singleton @ SV617 ) )
        = $true )
      | ( ( subset @ SV571 @ ( singleton @ SV617 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2827]) ).

thf(2914,plain,
    ! [SV678: $i] :
      ( ( ( ( SV678 != empty_set ) )
        = $true )
      | ( ( ! [SY1034: $i] : ( subset @ SV678 @ ( singleton @ SY1034 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2828]) ).

thf(2915,plain,
    ! [SV691: $i,SV679: $i] :
      ( ( ( SV679
         != ( singleton @ SV691 ) )
        | ( subset @ SV679 @ ( singleton @ SV691 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2829]) ).

thf(2916,plain,
    ! [SV572: $i,SV618: $i] :
      ( ( ( in @ SV618 @ SV572 )
        = $false )
      | ( ( ( set_difference @ SV572 @ ( singleton @ SV618 ) )
          = SV572 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2830]) ).

thf(2917,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                    | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) )
                | ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                    | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) )
          | ~ ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
              | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 )
              | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) )
        = $false )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2831]) ).

thf(2918,plain,
    ! [SV621: $i,SV470: $i,SV652: $i] :
      ( ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1002: $i] :
                    ( ~ ( in @ SY1002 @ SV652 )
                    | ( in @ SY1002 @ SV470 )
                    | ( in @ SY1002 @ SV621 ) )
              | ~ ~ ( ~ ! [SY1003: $i] :
                          ( ~ ( in @ SY1003 @ SV470 )
                          | ( in @ SY1003 @ SV652 ) )
                    | ~ ! [SY1004: $i] :
                          ( ~ ( in @ SY1004 @ SV621 )
                          | ( in @ SY1004 @ SV652 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2832]) ).

thf(2919,plain,
    ! [SV536: $i,SV471: $i,SV692: $i] :
      ( ( ( ~ ( element @ SV692 @ ( powerset @ SV471 ) )
          | ~ ( disjoint @ SV536 @ SV692 )
          | ( subset @ SV536 @ ( subset_complement @ SV471 @ SV692 ) ) )
        = $true )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2835]) ).

thf(2920,plain,
    ! [SV536: $i,SV471: $i,SV693: $i] :
      ( ( ( ~ ( element @ SV693 @ ( powerset @ SV471 ) )
          | ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SV693 ) )
          | ( disjoint @ SV536 @ SV693 ) )
        = $true )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2836]) ).

thf(2921,plain,
    ! [SV624: $i,SV576: $i] :
      ( ( ( subset @ SV576 @ SV624 )
        = $false )
      | ( ( ~ ( subset @ SV624 @ SV576 ) )
        = $true )
      | ( ( SV576 = SV624 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2837]) ).

thf(2922,plain,
    ! [SV694: $i,SV680: $i] :
      ( ( ( SV680 != SV694 )
        | ( subset @ SV680 @ SV694 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2838]) ).

thf(2923,plain,
    ! [SV695: $i,SV681: $i] :
      ( ( ( SV681 != SV695 )
        | ( subset @ SV695 @ SV681 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2839]) ).

thf(2924,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                    | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                     != SV472 ) )
                | ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                    | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                     != SV629 ) ) )
          | ~ ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
              | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                = SV472 )
              | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                = SV629 ) ) )
        = $false )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2844]) ).

thf(2925,plain,
    ! [SV630: $i,SV472: $i,SV654: $i] :
      ( ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1005: $i] :
                    ( ~ ( in @ SY1005 @ SV654 )
                    | ( SY1005 = SV472 )
                    | ( SY1005 = SV630 ) )
              | ~ ~ ( ~ ! [SY1006: $i] :
                          ( ( SY1006 != SV472 )
                          | ( in @ SY1006 @ SV654 ) )
                    | ~ ! [SY1007: $i] :
                          ( ( SY1007 != SV630 )
                          | ( in @ SY1007 @ SV654 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2845]) ).

thf(2926,plain,
    ! [SV583: $i,SV633: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV583 ) )
        = $false )
      | ( ( disjoint @ SV583 @ SV633 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2848]) ).

thf(2927,plain,
    ! [SV583: $i,SV633: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV633 ) )
        = $false )
      | ( ( disjoint @ SV583 @ SV633 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2848]) ).

thf(2928,plain,
    ! [SV634: $i,SV584: $i,SV682: $i] :
      ( ( ( ~ ( in @ SV682 @ SV584 ) )
        = $true )
      | ( ( ~ ( in @ SV682 @ SV634 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV584 @ SV634 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2849]) ).

thf(2929,plain,
    ! [SV585: $i,SV635: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV585 ) )
        = $false )
      | ( ( subset @ SV585 @ SV635 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2850]) ).

thf(2930,plain,
    ! [SV585: $i,SV635: $i] :
      ( ( ( ~ ~ ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV635 ) )
        = $false )
      | ( ( subset @ SV585 @ SV635 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2850]) ).

thf(2931,plain,
    ! [SV636: $i,SV586: $i,SV696: $i] :
      ( ( ( ~ ( in @ SV696 @ SV586 )
          | ( in @ SV696 @ SV636 ) )
        = $true )
      | ( ( subset @ SV586 @ SV636 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2851]) ).

thf(2932,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
              | ~ ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) ) )
        = $false )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2852]) ).

thf(2933,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( ~ ( ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
              | ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) ) )
        = $false )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2852]) ).

thf(2934,plain,
    ! [SV588: $i,SV638: $i] :
      ( ( ( ~ ! [SY985: $i] :
                ( ~ ( in @ SY985 @ SV638 )
                | ( subset @ SY985 @ SV588 ) )
          | ~ ! [SY986: $i] :
                ( ~ ( subset @ SY986 @ SV588 )
                | ( in @ SY986 @ SV638 ) ) )
        = $false )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2853]) ).

thf(2935,plain,
    ! [SV697: $i,SV655: $i,SV537: $i,SV473: $i] :
      ( ( ( ( ( ordered_pair @ SV473 @ SV537 )
           != ( ordered_pair @ SV655 @ SV697 ) ) )
        = $true )
      | ( ( SV473 = SV655 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2854]) ).

thf(2936,plain,
    ! [SV683: $i,SV656: $i,SV537: $i,SV473: $i] :
      ( ( ( ( ( ordered_pair @ SV473 @ SV537 )
           != ( ordered_pair @ SV656 @ SV683 ) ) )
        = $true )
      | ( ( SV537 = SV683 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2855]) ).

thf(2937,plain,
    ! [SV641: $i,SV657: $i,SV475: $i] :
      ( ( ( ~ ( in @ SV475 @ SV657 ) )
        = $true )
      | ( ( ~ ( in @ SV641 @ SV657 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV475 @ SV641 ) @ SV657 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2858]) ).

thf(2938,plain,
    ! [SV698: $i,SV475: $i] :
      ( ( ! [SY1039: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV475 @ SV698 ) @ SY1039 )
            | ( in @ SV475 @ SY1039 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2859]) ).

thf(2939,plain,
    ! [SV699: $i,SV475: $i] :
      ( ( ! [SY1040: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV475 @ SV699 ) @ SY1040 )
            | ( in @ SV699 @ SY1040 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2860]) ).

thf(2940,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
        = $false )
      | ( ( ~ ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 ) )
        = $true )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2861]) ).

thf(2941,plain,
    ! [SV415: $i,SV544: $i,SV642: $i] :
      ( ( ( in @ SV642 @ SV544 )
        = $true )
      | ( ( in @ SV642 @ ( subset_complement @ SV415 @ SV544 ) )
        = $true )
      | ( ( element @ SV642 @ SV415 )
        = $false )
      | ( ( element @ SV544 @ ( powerset @ SV415 ) )
        = $false )
      | ( ( SV415 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2864]) ).

thf(2942,plain,
    ! [SV658: $i,SV598: $i,SV560: $i] :
      ( ( ( disjoint @ SV560 @ SV598 )
        = $false )
      | ( ( in @ SV658 @ ( set_intersection2 @ SV560 @ SV598 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2867]) ).

thf(2943,plain,
    ! [SV643: $i,SV599: $i,SV458: $i] :
      ( ( ( ~ ( ! [SY988: $i,SY989: $i] :
                  ( ~ ( in @ SY988 @ SV458 )
                  | ~ ( in @ SY989 @ SV599 )
                  | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
                   != ( ordered_pair @ SY988 @ SY989 ) ) )
              | ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) ) )
        = $false )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2868]) ).

thf(2944,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
                        | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) )
                  | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
                   != ( ordered_pair @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) ) ) )
              | ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) ) )
        = $false )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2868]) ).

thf(2945,plain,
    ! [SV644: $i,SV600: $i,SV458: $i] :
      ( ( ( ~ ! [SY990: $i] :
                ( ! [SY952: $i,SY953: $i] :
                    ( ~ ( in @ SY952 @ SV458 )
                    | ~ ( in @ SY953 @ SV600 )
                    | ( SY990
                     != ( ordered_pair @ SY952 @ SY953 ) ) )
                | ( in @ SY990 @ SV644 ) )
          | ~ ! [SY993: $i] :
                ( ~ ( in @ SY993 @ SV644 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                          | ~ ( in @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
                    | ( SY993
                     != ( ordered_pair @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) ) ) ) ) )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2869]) ).

thf(2946,plain,
    ! [SV459: $i,SV659: $i] :
      ( ( ( ~ ( ! [SY1010: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ SY1010 ) @ SV459 )
              | ~ ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ ( sK23_SY312 @ SV659 @ SV459 ) ) @ SV459 )
              | ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) ) )
        = $false )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2870]) ).

thf(2947,plain,
    ! [SV459: $i,SV660: $i] :
      ( ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1011: $i] :
                    ( ! [SY783: $i] :
                        ~ ( in @ ( ordered_pair @ SY1011 @ SY783 ) @ SV459 )
                    | ( in @ SY1011 @ SV660 ) )
              | ~ ! [SY1013: $i] :
                    ( ~ ( in @ SY1013 @ SV660 )
                    | ( in @ ( ordered_pair @ SY1013 @ ( sK21_D @ SY1013 @ SV660 @ SV459 ) ) @ SV459 ) ) ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2871]) ).

thf(2948,plain,
    ! [SV460: $i,SV684: $i] :
      ( ( ( ~ ( ~ ! [SY1038: $i] :
                    ( ~ ( subset @ SY1038 @ SV684 )
                    | ( in @ SY1038 @ ( sK11_SY302 @ SV684 @ SV460 ) ) )
              | ~ ( in @ ( sK11_SY302 @ SV684 @ SV460 ) @ ( sK10_B @ SV460 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2873]) ).

thf(2949,plain,
    ! [SV460: $i] :
      ( ( ~ ! [SY788: $i,SY789: $i] :
              ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
              | ~ ( subset @ SY789 @ SY788 )
              | ( in @ SY789 @ ( sK10_B @ SV460 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2874]) ).

thf(2950,plain,
    ! [SV460: $i] :
      ( ( ~ ( in @ SV460 @ ( sK10_B @ SV460 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2874]) ).

thf(2951,plain,
    ! [SV462: $i,SV685: $i] :
      ( ( ( ~ ( in @ SV685 @ ( sK9_B @ SV462 ) ) )
        = $true )
      | ( ( in @ ( powerset @ SV685 ) @ ( sK9_B @ SV462 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2876]) ).

thf(2952,plain,
    ! [SV462: $i] :
      ( ( ~ ! [SY793: $i,SY794: $i] :
              ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
              | ~ ( subset @ SY794 @ SY793 )
              | ( in @ SY794 @ ( sK9_B @ SV462 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2877]) ).

thf(2953,plain,
    ! [SV462: $i] :
      ( ( ~ ( in @ SV462 @ ( sK9_B @ SV462 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2877]) ).

thf(2954,plain,
    ! [SV661: $i,SV534: $i,SV645: $i,SV463: $i] :
      ( ( ( ~ ( in @ SV463 @ SV645 ) )
        = $true )
      | ( ( ~ ( in @ SV534 @ SV661 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV645 @ SV661 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2878]) ).

thf(2955,plain,
    ! [SV700: $i,SV534: $i,SV463: $i] :
      ( ( ! [SY1041: $i] :
            ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV700 @ SY1041 ) )
        | ( in @ SV463 @ SV700 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2879]) ).

thf(2956,plain,
    ! [SV701: $i,SV534: $i,SV463: $i] :
      ( ( ! [SY1042: $i] :
            ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV701 @ SY1042 ) )
            | ( in @ SV534 @ SY1042 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2880]) ).

thf(2957,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
              | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
              | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) ) )
        = $false )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2881]) ).

thf(2958,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
                    | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
                | ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
                    | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) ) ) )
        = $false )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2881]) ).

thf(2959,plain,
    ! [SV647: $i,SV604: $i,SV464: $i] :
      ( ( ( ~ ! [SY995: $i] :
                ( ~ ( in @ SY995 @ SV464 )
                | ~ ( in @ SY995 @ SV604 )
                | ( in @ SY995 @ SV647 ) )
          | ~ ~ ( ~ ! [SY996: $i] :
                      ( ~ ( in @ SY996 @ SV647 )
                      | ( in @ SY996 @ SV464 ) )
                | ~ ! [SY997: $i] :
                      ( ~ ( in @ SY997 @ SV647 )
                      | ( in @ SY997 @ SV604 ) ) ) )
        = $false )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2882]) ).

thf(2960,plain,
    ! [SV662: $i] :
      ( ( ( SV662 = empty_set )
        = $false )
      | ( ( ! [SY1014: $i] : ( subset @ SV662 @ ( singleton @ SY1014 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2884]) ).

thf(2961,plain,
    ! [SV686: $i,SV663: $i] :
      ( ( ( ( SV663
           != ( singleton @ SV686 ) ) )
        = $true )
      | ( ( subset @ SV663 @ ( singleton @ SV686 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2885]) ).

thf(2962,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 )
                      | ~ ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) ) )
                  | ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
              | ~ ( ! [SY1043: $i] :
                      ( ~ ( in @ SY1043 @ SV664 )
                      | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SY1043 ) )
                  | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) ) )
          | ( SV702
            = ( set_meet @ SV664 ) ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2886]) ).

thf(2963,plain,
    ! [SV665: $i,SV703: $i] :
      ( ( ( ( SV703
           != ( set_meet @ SV665 ) )
          | ~ ( ~ ! [SY1044: $i] :
                    ( ~ ( ~ ( in @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) @ SV665 )
                        | ~ ~ ( in @ SY1044 @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) ) )
                    | ( in @ SY1044 @ SV703 ) )
              | ~ ! [SY1045: $i] :
                    ( ~ ( in @ SY1045 @ SV703 )
                    | ! [SY1021: $i] :
                        ( ~ ( in @ SY1021 @ SV665 )
                        | ( in @ SY1045 @ SY1021 ) ) ) ) )
        = $true )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2887]) ).

thf(2964,plain,
    ! [SV666: $i] :
      ( ( ( SV666 = empty_set )
        = $false )
      | ( ( ! [SY1022: $i] :
              ( ( SY1022
               != ( set_meet @ SV666 ) )
              | ( SY1022 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2888]) ).

thf(2965,plain,
    ! [SV667: $i] :
      ( ( ( SV667 = empty_set )
        = $false )
      | ( ( ! [SY1023: $i] :
              ( ( SY1023 != empty_set )
              | ( SY1023
                = ( set_meet @ SV667 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2889]) ).

thf(2966,plain,
    ! [SV668: $i,SV704: $i] :
      ( ( ( ~ ( element @ SV704 @ SV668 )
          | ( in @ SV704 @ SV668 ) )
        = $true )
      | ( ( empty @ SV668 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2890]) ).

thf(2967,plain,
    ! [SV669: $i,SV705: $i] :
      ( ( ( ~ ( in @ SV705 @ SV669 )
          | ( element @ SV705 @ SV669 ) )
        = $true )
      | ( ( empty @ SV669 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2891]) ).

thf(2968,plain,
    ! [SV670: $i] :
      ( ( ( empty @ SV670 )
        = $false )
      | ( ( ! [SY1026: $i] :
              ( ~ ( element @ SY1026 @ SV670 )
              | ( empty @ SY1026 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2892]) ).

thf(2969,plain,
    ! [SV671: $i] :
      ( ( ( empty @ SV671 )
        = $false )
      | ( ( ! [SY1027: $i] :
              ( ~ ( empty @ SY1027 )
              | ( element @ SY1027 @ SV671 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2893]) ).

thf(2970,plain,
    ! [SV687: $i,SV672: $i] :
      ( ( ( ~ ( proper_subset @ SV672 @ SV687 ) )
        = $true )
      | ( ( ( SV672 != SV687 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2895]) ).

thf(2971,plain,
    ! [SV688: $i,SV673: $i] :
      ( ( ( ~ ( proper_subset @ SV673 @ SV688 ) )
        = $true )
      | ( ( subset @ SV673 @ SV688 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2896]) ).

thf(2972,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
              | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
              | ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) ) )
        = $false )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2897]) ).

thf(2973,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
                    | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
                | ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
                    | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) ) ) )
        = $false )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2897]) ).

thf(2974,plain,
    ! [SV649: $i,SV610: $i,SV465: $i] :
      ( ( ( ~ ! [SY998: $i] :
                ( ~ ( in @ SY998 @ SV465 )
                | ( in @ SY998 @ SV610 )
                | ( in @ SY998 @ SV649 ) )
          | ~ ~ ( ~ ! [SY999: $i] :
                      ( ~ ( in @ SY999 @ SV649 )
                      | ( in @ SY999 @ SV465 ) )
                | ~ ! [SY1000: $i] :
                      ( ~ ( in @ SY1000 @ SV649 )
                      | ~ ( in @ SY1000 @ SV610 ) ) ) )
        = $false )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2898]) ).

thf(2975,plain,
    ! [SV674: $i,SV535: $i,SV650: $i,SV466: $i] :
      ( ( ( ~ ( in @ SV466 @ SV650 ) )
        = $true )
      | ( ( ~ ( in @ SV535 @ SV674 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV650 @ SV674 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2899]) ).

thf(2976,plain,
    ! [SV706: $i,SV535: $i,SV466: $i] :
      ( ( ! [SY1047: $i] :
            ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV706 @ SY1047 ) )
        | ( in @ SV466 @ SV706 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2900]) ).

thf(2977,plain,
    ! [SV707: $i,SV535: $i,SV466: $i] :
      ( ( ! [SY1048: $i] :
            ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV707 @ SY1048 ) )
            | ( in @ SV535 @ SY1048 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2901]) ).

thf(2978,plain,
    ! [SV468: $i,SV675: $i] :
      ( ( ( ~ ( ! [SY1030: $i] :
                  ~ ( in @ ( ordered_pair @ SY1030 @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
              | ~ ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV675 @ SV468 ) @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
              | ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) ) )
        = $false )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2904]) ).

thf(2979,plain,
    ! [SV468: $i,SV676: $i] :
      ( ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1031: $i] :
                    ( ! [SY831: $i] :
                        ~ ( in @ ( ordered_pair @ SY831 @ SY1031 ) @ SV468 )
                    | ( in @ SY1031 @ SV676 ) )
              | ~ ! [SY1033: $i] :
                    ( ~ ( in @ SY1033 @ SV676 )
                    | ( in @ ( ordered_pair @ ( sK14_D @ SY1033 @ SV676 @ SV468 ) @ SY1033 ) @ SV468 ) ) ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2905]) ).

thf(2980,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( ( ( sK35_C @ SV613 @ SV567 )
           != SV567 )
          | ~ ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) )
        = $true )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2907]) ).

thf(2981,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( ( ( sK35_C @ SV613 @ SV567 )
            = SV567 )
          | ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) )
        = $true )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2908]) ).

thf(2982,plain,
    ! [SV614: $i,SV568: $i] :
      ( ( ( ~ ! [SY967: $i] :
                ( ( SY967 != SV568 )
                | ( in @ SY967 @ SV614 ) ) )
        = $false )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2909]) ).

thf(2983,plain,
    ! [SV568: $i,SV614: $i] :
      ( ( ( ~ ! [SY968: $i] :
                ( ~ ( in @ SY968 @ SV614 )
                | ( SY968 = SV568 ) ) )
        = $false )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2909]) ).

thf(2984,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ! [SY969: $i] :
              ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SY969 )
              | ~ ( in @ SY969 @ SV569 ) )
          | ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2910]) ).

thf(2985,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ ( sK20_SY310 @ SV615 @ SV569 ) )
              | ~ ( in @ ( sK20_SY310 @ SV615 @ SV569 ) @ SV569 ) )
          | ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2911]) ).

thf(2986,plain,
    ! [SV616: $i,SV570: $i] :
      ( ( ( ~ ! [SY970: $i] :
                ( ! [SY920: $i] :
                    ( ~ ( in @ SY970 @ SY920 )
                    | ~ ( in @ SY920 @ SV570 ) )
                | ( in @ SY970 @ SV616 ) ) )
        = $false )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2912]) ).

thf(2987,plain,
    ! [SV570: $i,SV616: $i] :
      ( ( ( ~ ! [SY972: $i] :
                ( ~ ( in @ SY972 @ SV616 )
                | ~ ( ~ ( in @ SY972 @ ( sK18_D @ SY972 @ SV616 @ SV570 ) )
                    | ~ ( in @ ( sK18_D @ SY972 @ SV616 @ SV570 ) @ SV570 ) ) ) )
        = $false )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2912]) ).

thf(2988,plain,
    ! [SV678: $i] :
      ( ( ( SV678 = empty_set )
        = $false )
      | ( ( ! [SY1034: $i] : ( subset @ SV678 @ ( singleton @ SY1034 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2914]) ).

thf(2989,plain,
    ! [SV691: $i,SV679: $i] :
      ( ( ( ( SV679
           != ( singleton @ SV691 ) ) )
        = $true )
      | ( ( subset @ SV679 @ ( singleton @ SV691 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2915]) ).

thf(2990,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                    | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) )
                | ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                    | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) ) )
        = $false )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2917]) ).

thf(2991,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
              | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 )
              | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) )
        = $false )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2917]) ).

thf(2992,plain,
    ! [SV621: $i,SV470: $i,SV652: $i] :
      ( ( ( ~ ! [SY1002: $i] :
                ( ~ ( in @ SY1002 @ SV652 )
                | ( in @ SY1002 @ SV470 )
                | ( in @ SY1002 @ SV621 ) )
          | ~ ~ ( ~ ! [SY1003: $i] :
                      ( ~ ( in @ SY1003 @ SV470 )
                      | ( in @ SY1003 @ SV652 ) )
                | ~ ! [SY1004: $i] :
                      ( ~ ( in @ SY1004 @ SV621 )
                      | ( in @ SY1004 @ SV652 ) ) ) )
        = $false )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2918]) ).

thf(2993,plain,
    ! [SV536: $i,SV471: $i,SV692: $i] :
      ( ( ( ~ ( element @ SV692 @ ( powerset @ SV471 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV536 @ SV692 )
          | ( subset @ SV536 @ ( subset_complement @ SV471 @ SV692 ) ) )
        = $true )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2919]) ).

thf(2994,plain,
    ! [SV536: $i,SV471: $i,SV693: $i] :
      ( ( ( ~ ( element @ SV693 @ ( powerset @ SV471 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SV693 ) )
          | ( disjoint @ SV536 @ SV693 ) )
        = $true )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2920]) ).

thf(2995,plain,
    ! [SV576: $i,SV624: $i] :
      ( ( ( subset @ SV624 @ SV576 )
        = $false )
      | ( ( subset @ SV576 @ SV624 )
        = $false )
      | ( ( SV576 = SV624 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2921]) ).

thf(2996,plain,
    ! [SV694: $i,SV680: $i] :
      ( ( ( ( SV680 != SV694 ) )
        = $true )
      | ( ( subset @ SV680 @ SV694 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2922]) ).

thf(2997,plain,
    ! [SV695: $i,SV681: $i] :
      ( ( ( ( SV681 != SV695 ) )
        = $true )
      | ( ( subset @ SV695 @ SV681 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2923]) ).

thf(2998,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                    | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                     != SV472 ) )
                | ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                    | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                     != SV629 ) ) ) )
        = $false )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2924]) ).

thf(2999,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
              | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                = SV472 )
              | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                = SV629 ) ) )
        = $false )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2924]) ).

thf(3000,plain,
    ! [SV630: $i,SV472: $i,SV654: $i] :
      ( ( ( ~ ! [SY1005: $i] :
                ( ~ ( in @ SY1005 @ SV654 )
                | ( SY1005 = SV472 )
                | ( SY1005 = SV630 ) )
          | ~ ~ ( ~ ! [SY1006: $i] :
                      ( ( SY1006 != SV472 )
                      | ( in @ SY1006 @ SV654 ) )
                | ~ ! [SY1007: $i] :
                      ( ( SY1007 != SV630 )
                      | ( in @ SY1007 @ SV654 ) ) ) )
        = $false )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2925]) ).

thf(3001,plain,
    ! [SV583: $i,SV633: $i] :
      ( ( ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV583 )
        = $true )
      | ( ( disjoint @ SV583 @ SV633 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2926]) ).

thf(3002,plain,
    ! [SV583: $i,SV633: $i] :
      ( ( ( in @ ( sK40_C @ SV633 @ SV583 ) @ SV633 )
        = $true )
      | ( ( disjoint @ SV583 @ SV633 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2927]) ).

thf(3003,plain,
    ! [SV634: $i,SV584: $i,SV682: $i] :
      ( ( ( in @ SV682 @ SV584 )
        = $false )
      | ( ( ~ ( in @ SV682 @ SV634 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV584 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2928]) ).

thf(3004,plain,
    ! [SV585: $i,SV635: $i] :
      ( ( ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV585 )
        = $true )
      | ( ( subset @ SV585 @ SV635 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2929]) ).

thf(3005,plain,
    ! [SV585: $i,SV635: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV635 ) )
        = $true )
      | ( ( subset @ SV585 @ SV635 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2930]) ).

thf(3006,plain,
    ! [SV636: $i,SV586: $i,SV696: $i] :
      ( ( ( ~ ( in @ SV696 @ SV586 ) )
        = $true )
      | ( ( in @ SV696 @ SV636 )
        = $true )
      | ( ( subset @ SV586 @ SV636 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2931]) ).

thf(3007,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
          | ~ ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2932]) ).

thf(3008,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
          | ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2933]) ).

thf(3009,plain,
    ! [SV588: $i,SV638: $i] :
      ( ( ( ~ ! [SY985: $i] :
                ( ~ ( in @ SY985 @ SV638 )
                | ( subset @ SY985 @ SV588 ) ) )
        = $false )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2934]) ).

thf(3010,plain,
    ! [SV638: $i,SV588: $i] :
      ( ( ( ~ ! [SY986: $i] :
                ( ~ ( subset @ SY986 @ SV588 )
                | ( in @ SY986 @ SV638 ) ) )
        = $false )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2934]) ).

thf(3011,plain,
    ! [SV697: $i,SV655: $i,SV537: $i,SV473: $i] :
      ( ( ( ( ordered_pair @ SV473 @ SV537 )
          = ( ordered_pair @ SV655 @ SV697 ) )
        = $false )
      | ( ( SV473 = SV655 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2935]) ).

thf(3012,plain,
    ! [SV683: $i,SV656: $i,SV537: $i,SV473: $i] :
      ( ( ( ( ordered_pair @ SV473 @ SV537 )
          = ( ordered_pair @ SV656 @ SV683 ) )
        = $false )
      | ( ( SV537 = SV683 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2936]) ).

thf(3013,plain,
    ! [SV641: $i,SV657: $i,SV475: $i] :
      ( ( ( in @ SV475 @ SV657 )
        = $false )
      | ( ( ~ ( in @ SV641 @ SV657 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV475 @ SV641 ) @ SV657 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2937]) ).

thf(3014,plain,
    ! [SV708: $i,SV698: $i,SV475: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV475 @ SV698 ) @ SV708 )
        | ( in @ SV475 @ SV708 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2938]) ).

thf(3015,plain,
    ! [SV709: $i,SV699: $i,SV475: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV475 @ SV699 ) @ SV709 )
        | ( in @ SV699 @ SV709 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2939]) ).

thf(3016,plain,
    ! [SV476: $i,SV538: $i] :
      ( ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV538 )
        = $false )
      | ( ( in @ ( sK12_C @ SV538 @ SV476 ) @ SV476 )
        = $false )
      | ( ( SV476 = SV538 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2940]) ).

thf(3017,plain,
    ! [SV643: $i,SV599: $i,SV458: $i] :
      ( ( ( ! [SY988: $i,SY989: $i] :
              ( ~ ( in @ SY988 @ SV458 )
              | ~ ( in @ SY989 @ SV599 )
              | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
               != ( ordered_pair @ SY988 @ SY989 ) ) )
          | ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2943]) ).

thf(3018,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
                    | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) )
              | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
               != ( ordered_pair @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) ) ) )
          | ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2944]) ).

thf(3019,plain,
    ! [SV644: $i,SV600: $i,SV458: $i] :
      ( ( ( ~ ! [SY990: $i] :
                ( ! [SY952: $i,SY953: $i] :
                    ( ~ ( in @ SY952 @ SV458 )
                    | ~ ( in @ SY953 @ SV600 )
                    | ( SY990
                     != ( ordered_pair @ SY952 @ SY953 ) ) )
                | ( in @ SY990 @ SV644 ) ) )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2945]) ).

thf(3020,plain,
    ! [SV458: $i,SV600: $i,SV644: $i] :
      ( ( ( ~ ! [SY993: $i] :
                ( ~ ( in @ SY993 @ SV644 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                          | ~ ( in @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
                    | ( SY993
                     != ( ordered_pair @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) ) ) ) ) )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2945]) ).

thf(3021,plain,
    ! [SV459: $i,SV659: $i] :
      ( ( ( ~ ( ! [SY1010: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ SY1010 ) @ SV459 )
              | ~ ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) ) )
        = $false )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2946]) ).

thf(3022,plain,
    ! [SV459: $i,SV659: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ ( sK23_SY312 @ SV659 @ SV459 ) ) @ SV459 )
              | ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) ) )
        = $false )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2946]) ).

thf(3023,plain,
    ! [SV660: $i,SV459: $i] :
      ( ( ( ~ ! [SY1011: $i] :
                ( ! [SY783: $i] :
                    ~ ( in @ ( ordered_pair @ SY1011 @ SY783 ) @ SV459 )
                | ( in @ SY1011 @ SV660 ) )
          | ~ ! [SY1013: $i] :
                ( ~ ( in @ SY1013 @ SV660 )
                | ( in @ ( ordered_pair @ SY1013 @ ( sK21_D @ SY1013 @ SV660 @ SV459 ) ) @ SV459 ) ) )
        = $false )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2947]) ).

thf(3024,plain,
    ! [SV460: $i,SV684: $i] :
      ( ( ( ~ ! [SY1038: $i] :
                ( ~ ( subset @ SY1038 @ SV684 )
                | ( in @ SY1038 @ ( sK11_SY302 @ SV684 @ SV460 ) ) )
          | ~ ( in @ ( sK11_SY302 @ SV684 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
        = $false )
      | ( ( ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2948]) ).

thf(3025,plain,
    ! [SV460: $i] :
      ( ( ! [SY788: $i,SY789: $i] :
            ( ~ ( in @ SY788 @ ( sK10_B @ SV460 ) )
            | ~ ( subset @ SY789 @ SY788 )
            | ( in @ SY789 @ ( sK10_B @ SV460 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2949]) ).

thf(3026,plain,
    ! [SV460: $i] :
      ( ( in @ SV460 @ ( sK10_B @ SV460 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2950]) ).

thf(3027,plain,
    ! [SV462: $i,SV685: $i] :
      ( ( ( in @ SV685 @ ( sK9_B @ SV462 ) )
        = $false )
      | ( ( in @ ( powerset @ SV685 ) @ ( sK9_B @ SV462 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2951]) ).

thf(3028,plain,
    ! [SV462: $i] :
      ( ( ! [SY793: $i,SY794: $i] :
            ( ~ ( in @ SY793 @ ( sK9_B @ SV462 ) )
            | ~ ( subset @ SY794 @ SY793 )
            | ( in @ SY794 @ ( sK9_B @ SV462 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2952]) ).

thf(3029,plain,
    ! [SV462: $i] :
      ( ( in @ SV462 @ ( sK9_B @ SV462 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2953]) ).

thf(3030,plain,
    ! [SV661: $i,SV534: $i,SV645: $i,SV463: $i] :
      ( ( ( in @ SV463 @ SV645 )
        = $false )
      | ( ( ~ ( in @ SV534 @ SV661 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV645 @ SV661 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2954]) ).

thf(3031,plain,
    ! [SV700: $i,SV534: $i,SV463: $i] :
      ( ( ( ! [SY1041: $i] :
              ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV700 @ SY1041 ) ) )
        = $true )
      | ( ( in @ SV463 @ SV700 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2955]) ).

thf(3032,plain,
    ! [SV710: $i,SV701: $i,SV534: $i,SV463: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV701 @ SV710 ) )
        | ( in @ SV534 @ SV710 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2956]) ).

thf(3033,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
          | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
          | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2957]) ).

thf(3034,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
                  | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
              | ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
                  | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) ) ) )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2958]) ).

thf(3035,plain,
    ! [SV647: $i,SV604: $i,SV464: $i] :
      ( ( ( ~ ! [SY995: $i] :
                ( ~ ( in @ SY995 @ SV464 )
                | ~ ( in @ SY995 @ SV604 )
                | ( in @ SY995 @ SV647 ) ) )
        = $false )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2959]) ).

thf(3036,plain,
    ! [SV604: $i,SV464: $i,SV647: $i] :
      ( ( ( ~ ~ ( ~ ! [SY996: $i] :
                      ( ~ ( in @ SY996 @ SV647 )
                      | ( in @ SY996 @ SV464 ) )
                | ~ ! [SY997: $i] :
                      ( ~ ( in @ SY997 @ SV647 )
                      | ( in @ SY997 @ SV604 ) ) ) )
        = $false )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2959]) ).

thf(3037,plain,
    ! [SV711: $i,SV662: $i] :
      ( ( ( subset @ SV662 @ ( singleton @ SV711 ) )
        = $true )
      | ( ( SV662 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2960]) ).

thf(3038,plain,
    ! [SV686: $i,SV663: $i] :
      ( ( ( SV663
          = ( singleton @ SV686 ) )
        = $false )
      | ( ( subset @ SV663 @ ( singleton @ SV686 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2961]) ).

thf(3039,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 )
                      | ~ ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) ) )
                  | ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
              | ~ ( ! [SY1043: $i] :
                      ( ~ ( in @ SY1043 @ SV664 )
                      | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SY1043 ) )
                  | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) ) ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2962]) ).

thf(3040,plain,
    ! [SV665: $i,SV703: $i] :
      ( ( ( ( SV703
           != ( set_meet @ SV665 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY1044: $i] :
                    ( ~ ( ~ ( in @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) @ SV665 )
                        | ~ ~ ( in @ SY1044 @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) ) )
                    | ( in @ SY1044 @ SV703 ) )
              | ~ ! [SY1045: $i] :
                    ( ~ ( in @ SY1045 @ SV703 )
                    | ! [SY1021: $i] :
                        ( ~ ( in @ SY1021 @ SV665 )
                        | ( in @ SY1045 @ SY1021 ) ) ) ) )
        = $true )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2963]) ).

thf(3041,plain,
    ! [SV666: $i,SV712: $i] :
      ( ( ( ( SV712
           != ( set_meet @ SV666 ) )
          | ( SV712 = empty_set ) )
        = $true )
      | ( ( SV666 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2964]) ).

thf(3042,plain,
    ! [SV667: $i,SV713: $i] :
      ( ( ( ( SV713 != empty_set )
          | ( SV713
            = ( set_meet @ SV667 ) ) )
        = $true )
      | ( ( SV667 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2965]) ).

thf(3043,plain,
    ! [SV668: $i,SV704: $i] :
      ( ( ( ~ ( element @ SV704 @ SV668 ) )
        = $true )
      | ( ( in @ SV704 @ SV668 )
        = $true )
      | ( ( empty @ SV668 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2966]) ).

thf(3044,plain,
    ! [SV669: $i,SV705: $i] :
      ( ( ( ~ ( in @ SV705 @ SV669 ) )
        = $true )
      | ( ( element @ SV705 @ SV669 )
        = $true )
      | ( ( empty @ SV669 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2967]) ).

thf(3045,plain,
    ! [SV670: $i,SV714: $i] :
      ( ( ( ~ ( element @ SV714 @ SV670 )
          | ( empty @ SV714 ) )
        = $true )
      | ( ( empty @ SV670 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2968]) ).

thf(3046,plain,
    ! [SV671: $i,SV715: $i] :
      ( ( ( ~ ( empty @ SV715 )
          | ( element @ SV715 @ SV671 ) )
        = $true )
      | ( ( empty @ SV671 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2969]) ).

thf(3047,plain,
    ! [SV687: $i,SV672: $i] :
      ( ( ( proper_subset @ SV672 @ SV687 )
        = $false )
      | ( ( ( SV672 != SV687 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2970]) ).

thf(3048,plain,
    ! [SV688: $i,SV673: $i] :
      ( ( ( proper_subset @ SV673 @ SV688 )
        = $false )
      | ( ( subset @ SV673 @ SV688 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2971]) ).

thf(3049,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
          | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
          | ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2972]) ).

thf(3050,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
                  | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
              | ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
                  | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) ) ) )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2973]) ).

thf(3051,plain,
    ! [SV649: $i,SV610: $i,SV465: $i] :
      ( ( ( ~ ! [SY998: $i] :
                ( ~ ( in @ SY998 @ SV465 )
                | ( in @ SY998 @ SV610 )
                | ( in @ SY998 @ SV649 ) ) )
        = $false )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2974]) ).

thf(3052,plain,
    ! [SV610: $i,SV465: $i,SV649: $i] :
      ( ( ( ~ ~ ( ~ ! [SY999: $i] :
                      ( ~ ( in @ SY999 @ SV649 )
                      | ( in @ SY999 @ SV465 ) )
                | ~ ! [SY1000: $i] :
                      ( ~ ( in @ SY1000 @ SV649 )
                      | ~ ( in @ SY1000 @ SV610 ) ) ) )
        = $false )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2974]) ).

thf(3053,plain,
    ! [SV674: $i,SV535: $i,SV650: $i,SV466: $i] :
      ( ( ( in @ SV466 @ SV650 )
        = $false )
      | ( ( ~ ( in @ SV535 @ SV674 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV650 @ SV674 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2975]) ).

thf(3054,plain,
    ! [SV706: $i,SV535: $i,SV466: $i] :
      ( ( ( ! [SY1047: $i] :
              ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV706 @ SY1047 ) ) )
        = $true )
      | ( ( in @ SV466 @ SV706 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2976]) ).

thf(3055,plain,
    ! [SV716: $i,SV707: $i,SV535: $i,SV466: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV707 @ SV716 ) )
        | ( in @ SV535 @ SV716 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2977]) ).

thf(3056,plain,
    ! [SV468: $i,SV675: $i] :
      ( ( ( ~ ( ! [SY1030: $i] :
                  ~ ( in @ ( ordered_pair @ SY1030 @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
              | ~ ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) ) )
        = $false )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2978]) ).

thf(3057,plain,
    ! [SV468: $i,SV675: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV675 @ SV468 ) @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
              | ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) ) )
        = $false )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2978]) ).

thf(3058,plain,
    ! [SV676: $i,SV468: $i] :
      ( ( ( ~ ! [SY1031: $i] :
                ( ! [SY831: $i] :
                    ~ ( in @ ( ordered_pair @ SY831 @ SY1031 ) @ SV468 )
                | ( in @ SY1031 @ SV676 ) )
          | ~ ! [SY1033: $i] :
                ( ~ ( in @ SY1033 @ SV676 )
                | ( in @ ( ordered_pair @ ( sK14_D @ SY1033 @ SV676 @ SV468 ) @ SY1033 ) @ SV468 ) ) )
        = $false )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2979]) ).

thf(3059,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( ( ( sK35_C @ SV613 @ SV567 )
           != SV567 ) )
        = $true )
      | ( ( ~ ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) )
        = $true )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2980]) ).

thf(3060,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( ( sK35_C @ SV613 @ SV567 )
          = SV567 )
        = $true )
      | ( ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 )
        = $true )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2981]) ).

thf(3061,plain,
    ! [SV614: $i,SV568: $i] :
      ( ( ( ! [SY967: $i] :
              ( ( SY967 != SV568 )
              | ( in @ SY967 @ SV614 ) ) )
        = $true )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2982]) ).

thf(3062,plain,
    ! [SV568: $i,SV614: $i] :
      ( ( ( ! [SY968: $i] :
              ( ~ ( in @ SY968 @ SV614 )
              | ( SY968 = SV568 ) ) )
        = $true )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2983]) ).

thf(3063,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ! [SY969: $i] :
              ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SY969 )
              | ~ ( in @ SY969 @ SV569 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2984]) ).

thf(3064,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ ( sK20_SY310 @ SV615 @ SV569 ) )
              | ~ ( in @ ( sK20_SY310 @ SV615 @ SV569 ) @ SV569 ) ) )
        = $true )
      | ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2985]) ).

thf(3065,plain,
    ! [SV616: $i,SV570: $i] :
      ( ( ( ! [SY970: $i] :
              ( ! [SY920: $i] :
                  ( ~ ( in @ SY970 @ SY920 )
                  | ~ ( in @ SY920 @ SV570 ) )
              | ( in @ SY970 @ SV616 ) ) )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2986]) ).

thf(3066,plain,
    ! [SV570: $i,SV616: $i] :
      ( ( ( ! [SY972: $i] :
              ( ~ ( in @ SY972 @ SV616 )
              | ~ ( ~ ( in @ SY972 @ ( sK18_D @ SY972 @ SV616 @ SV570 ) )
                  | ~ ( in @ ( sK18_D @ SY972 @ SV616 @ SV570 ) @ SV570 ) ) ) )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2987]) ).

thf(3067,plain,
    ! [SV717: $i,SV678: $i] :
      ( ( ( subset @ SV678 @ ( singleton @ SV717 ) )
        = $true )
      | ( ( SV678 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2988]) ).

thf(3068,plain,
    ! [SV691: $i,SV679: $i] :
      ( ( ( SV679
          = ( singleton @ SV691 ) )
        = $false )
      | ( ( subset @ SV679 @ ( singleton @ SV691 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2989]) ).

thf(3069,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                  | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) )
              | ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
                  | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2990]) ).

thf(3070,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
          | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 )
          | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2991]) ).

thf(3071,plain,
    ! [SV621: $i,SV470: $i,SV652: $i] :
      ( ( ( ~ ! [SY1002: $i] :
                ( ~ ( in @ SY1002 @ SV652 )
                | ( in @ SY1002 @ SV470 )
                | ( in @ SY1002 @ SV621 ) ) )
        = $false )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2992]) ).

thf(3072,plain,
    ! [SV621: $i,SV652: $i,SV470: $i] :
      ( ( ( ~ ~ ( ~ ! [SY1003: $i] :
                      ( ~ ( in @ SY1003 @ SV470 )
                      | ( in @ SY1003 @ SV652 ) )
                | ~ ! [SY1004: $i] :
                      ( ~ ( in @ SY1004 @ SV621 )
                      | ( in @ SY1004 @ SV652 ) ) ) )
        = $false )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2992]) ).

thf(3073,plain,
    ! [SV536: $i,SV471: $i,SV692: $i] :
      ( ( ( element @ SV692 @ ( powerset @ SV471 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV536 @ SV692 )
          | ( subset @ SV536 @ ( subset_complement @ SV471 @ SV692 ) ) )
        = $true )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2993]) ).

thf(3074,plain,
    ! [SV536: $i,SV471: $i,SV693: $i] :
      ( ( ( element @ SV693 @ ( powerset @ SV471 ) )
        = $false )
      | ( ( ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SV693 ) )
          | ( disjoint @ SV536 @ SV693 ) )
        = $true )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2994]) ).

thf(3075,plain,
    ! [SV694: $i,SV680: $i] :
      ( ( ( SV680 = SV694 )
        = $false )
      | ( ( subset @ SV680 @ SV694 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2996]) ).

thf(3076,plain,
    ! [SV695: $i,SV681: $i] :
      ( ( ( SV681 = SV695 )
        = $false )
      | ( ( subset @ SV695 @ SV681 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2997]) ).

thf(3077,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                  | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                   != SV472 ) )
              | ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
                  | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
                   != SV629 ) ) ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2998]) ).

thf(3078,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
          | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
            = SV472 )
          | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
            = SV629 ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2999]) ).

thf(3079,plain,
    ! [SV630: $i,SV472: $i,SV654: $i] :
      ( ( ( ~ ! [SY1005: $i] :
                ( ~ ( in @ SY1005 @ SV654 )
                | ( SY1005 = SV472 )
                | ( SY1005 = SV630 ) ) )
        = $false )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3000]) ).

thf(3080,plain,
    ! [SV630: $i,SV654: $i,SV472: $i] :
      ( ( ( ~ ~ ( ~ ! [SY1006: $i] :
                      ( ( SY1006 != SV472 )
                      | ( in @ SY1006 @ SV654 ) )
                | ~ ! [SY1007: $i] :
                      ( ( SY1007 != SV630 )
                      | ( in @ SY1007 @ SV654 ) ) ) )
        = $false )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3000]) ).

thf(3081,plain,
    ! [SV584: $i,SV634: $i,SV682: $i] :
      ( ( ( in @ SV682 @ SV634 )
        = $false )
      | ( ( in @ SV682 @ SV584 )
        = $false )
      | ( ( ~ ( disjoint @ SV584 @ SV634 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3003]) ).

thf(3082,plain,
    ! [SV585: $i,SV635: $i] :
      ( ( ( in @ ( sK25_C @ SV635 @ SV585 ) @ SV635 )
        = $false )
      | ( ( subset @ SV585 @ SV635 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3005]) ).

thf(3083,plain,
    ! [SV636: $i,SV586: $i,SV696: $i] :
      ( ( ( in @ SV696 @ SV586 )
        = $false )
      | ( ( in @ SV696 @ SV636 )
        = $true )
      | ( ( subset @ SV586 @ SV636 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3006]) ).

thf(3084,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( ~ ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3007]) ).

thf(3085,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
        = $true )
      | ( ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 )
        = $true )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3008]) ).

thf(3086,plain,
    ! [SV588: $i,SV638: $i] :
      ( ( ( ! [SY985: $i] :
              ( ~ ( in @ SY985 @ SV638 )
              | ( subset @ SY985 @ SV588 ) ) )
        = $true )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3009]) ).

thf(3087,plain,
    ! [SV638: $i,SV588: $i] :
      ( ( ( ! [SY986: $i] :
              ( ~ ( subset @ SY986 @ SV588 )
              | ( in @ SY986 @ SV638 ) ) )
        = $true )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3010]) ).

thf(3088,plain,
    ! [SV475: $i,SV657: $i,SV641: $i] :
      ( ( ( in @ SV641 @ SV657 )
        = $false )
      | ( ( in @ SV475 @ SV657 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV475 @ SV641 ) @ SV657 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3013]) ).

thf(3089,plain,
    ! [SV708: $i,SV698: $i,SV475: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV475 @ SV698 ) @ SV708 ) )
        = $true )
      | ( ( in @ SV475 @ SV708 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3014]) ).

thf(3090,plain,
    ! [SV709: $i,SV699: $i,SV475: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV475 @ SV699 ) @ SV709 ) )
        = $true )
      | ( ( in @ SV699 @ SV709 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3015]) ).

thf(3091,plain,
    ! [SV643: $i,SV599: $i,SV458: $i] :
      ( ( ( ! [SY988: $i,SY989: $i] :
              ( ~ ( in @ SY988 @ SV458 )
              | ~ ( in @ SY989 @ SV599 )
              | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
               != ( ordered_pair @ SY988 @ SY989 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3017]) ).

thf(3092,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
                    | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) )
              | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
               != ( ordered_pair @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3018]) ).

thf(3093,plain,
    ! [SV644: $i,SV600: $i,SV458: $i] :
      ( ( ( ! [SY990: $i] :
              ( ! [SY952: $i,SY953: $i] :
                  ( ~ ( in @ SY952 @ SV458 )
                  | ~ ( in @ SY953 @ SV600 )
                  | ( SY990
                   != ( ordered_pair @ SY952 @ SY953 ) ) )
              | ( in @ SY990 @ SV644 ) ) )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3019]) ).

thf(3094,plain,
    ! [SV458: $i,SV600: $i,SV644: $i] :
      ( ( ( ! [SY993: $i] :
              ( ~ ( in @ SY993 @ SV644 )
              | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                        | ~ ( in @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
                  | ( SY993
                   != ( ordered_pair @ ( sK26_E @ SY993 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SY993 @ SV644 @ SV600 @ SV458 ) ) ) ) ) )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3020]) ).

thf(3095,plain,
    ! [SV459: $i,SV659: $i] :
      ( ( ( ! [SY1010: $i] :
              ~ ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ SY1010 ) @ SV459 )
          | ~ ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) )
        = $true )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3021]) ).

thf(3096,plain,
    ! [SV459: $i,SV659: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ ( sK23_SY312 @ SV659 @ SV459 ) ) @ SV459 )
          | ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) )
        = $true )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3022]) ).

thf(3097,plain,
    ! [SV660: $i,SV459: $i] :
      ( ( ( ~ ! [SY1011: $i] :
                ( ! [SY783: $i] :
                    ~ ( in @ ( ordered_pair @ SY1011 @ SY783 ) @ SV459 )
                | ( in @ SY1011 @ SV660 ) ) )
        = $false )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3023]) ).

thf(3098,plain,
    ! [SV459: $i,SV660: $i] :
      ( ( ( ~ ! [SY1013: $i] :
                ( ~ ( in @ SY1013 @ SV660 )
                | ( in @ ( ordered_pair @ SY1013 @ ( sK21_D @ SY1013 @ SV660 @ SV459 ) ) @ SV459 ) ) )
        = $false )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3023]) ).

thf(3099,plain,
    ! [SV460: $i,SV684: $i] :
      ( ( ( ~ ! [SY1038: $i] :
                ( ~ ( subset @ SY1038 @ SV684 )
                | ( in @ SY1038 @ ( sK11_SY302 @ SV684 @ SV460 ) ) ) )
        = $false )
      | ( ( ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3024]) ).

thf(3100,plain,
    ! [SV460: $i,SV684: $i] :
      ( ( ( ~ ( in @ ( sK11_SY302 @ SV684 @ SV460 ) @ ( sK10_B @ SV460 ) ) )
        = $false )
      | ( ( ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3024]) ).

thf(3101,plain,
    ! [SV460: $i,SV718: $i] :
      ( ( ! [SY1049: $i] :
            ( ~ ( in @ SV718 @ ( sK10_B @ SV460 ) )
            | ~ ( subset @ SY1049 @ SV718 )
            | ( in @ SY1049 @ ( sK10_B @ SV460 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3025]) ).

thf(3102,plain,
    ! [SV462: $i,SV719: $i] :
      ( ( ! [SY1050: $i] :
            ( ~ ( in @ SV719 @ ( sK9_B @ SV462 ) )
            | ~ ( subset @ SY1050 @ SV719 )
            | ( in @ SY1050 @ ( sK9_B @ SV462 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3028]) ).

thf(3103,plain,
    ! [SV645: $i,SV463: $i,SV661: $i,SV534: $i] :
      ( ( ( in @ SV534 @ SV661 )
        = $false )
      | ( ( in @ SV463 @ SV645 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV645 @ SV661 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3030]) ).

thf(3104,plain,
    ! [SV720: $i,SV700: $i,SV534: $i,SV463: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV700 @ SV720 ) ) )
        = $true )
      | ( ( in @ SV463 @ SV700 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3031]) ).

thf(3105,plain,
    ! [SV710: $i,SV701: $i,SV534: $i,SV463: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV701 @ SV710 ) ) )
        = $true )
      | ( ( in @ SV534 @ SV710 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3032]) ).

thf(3106,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
          | ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3033]) ).

thf(3107,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
              | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
          | ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
              | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) ) )
        = $false )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3034]) ).

thf(3108,plain,
    ! [SV647: $i,SV604: $i,SV464: $i] :
      ( ( ( ! [SY995: $i] :
              ( ~ ( in @ SY995 @ SV464 )
              | ~ ( in @ SY995 @ SV604 )
              | ( in @ SY995 @ SV647 ) ) )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3035]) ).

thf(3109,plain,
    ! [SV604: $i,SV464: $i,SV647: $i] :
      ( ( ( ~ ( ~ ! [SY996: $i] :
                    ( ~ ( in @ SY996 @ SV647 )
                    | ( in @ SY996 @ SV464 ) )
              | ~ ! [SY997: $i] :
                    ( ~ ( in @ SY997 @ SV647 )
                    | ( in @ SY997 @ SV604 ) ) ) )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3036]) ).

thf(3110,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 )
                  | ~ ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) ) )
              | ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
          | ~ ( ! [SY1043: $i] :
                  ( ~ ( in @ SY1043 @ SV664 )
                  | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SY1043 ) )
              | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) ) )
        = $false )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3039]) ).

thf(3111,plain,
    ! [SV665: $i,SV703: $i] :
      ( ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY1044: $i] :
                    ( ~ ( ~ ( in @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) @ SV665 )
                        | ~ ~ ( in @ SY1044 @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) ) )
                    | ( in @ SY1044 @ SV703 ) )
              | ~ ! [SY1045: $i] :
                    ( ~ ( in @ SY1045 @ SV703 )
                    | ! [SY1021: $i] :
                        ( ~ ( in @ SY1021 @ SV665 )
                        | ( in @ SY1045 @ SY1021 ) ) ) ) )
        = $true )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3040]) ).

thf(3112,plain,
    ! [SV666: $i,SV712: $i] :
      ( ( ( ( SV712
           != ( set_meet @ SV666 ) ) )
        = $true )
      | ( ( SV712 = empty_set )
        = $true )
      | ( ( SV666 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3041]) ).

thf(3113,plain,
    ! [SV667: $i,SV713: $i] :
      ( ( ( ( SV713 != empty_set ) )
        = $true )
      | ( ( SV713
          = ( set_meet @ SV667 ) )
        = $true )
      | ( ( SV667 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3042]) ).

thf(3114,plain,
    ! [SV668: $i,SV704: $i] :
      ( ( ( element @ SV704 @ SV668 )
        = $false )
      | ( ( in @ SV704 @ SV668 )
        = $true )
      | ( ( empty @ SV668 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3043]) ).

thf(3115,plain,
    ! [SV669: $i,SV705: $i] :
      ( ( ( in @ SV705 @ SV669 )
        = $false )
      | ( ( element @ SV705 @ SV669 )
        = $true )
      | ( ( empty @ SV669 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3044]) ).

thf(3116,plain,
    ! [SV670: $i,SV714: $i] :
      ( ( ( ~ ( element @ SV714 @ SV670 ) )
        = $true )
      | ( ( empty @ SV714 )
        = $true )
      | ( ( empty @ SV670 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3045]) ).

thf(3117,plain,
    ! [SV671: $i,SV715: $i] :
      ( ( ( ~ ( empty @ SV715 ) )
        = $true )
      | ( ( element @ SV715 @ SV671 )
        = $true )
      | ( ( empty @ SV671 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3046]) ).

thf(3118,plain,
    ! [SV687: $i,SV672: $i] :
      ( ( ( SV672 = SV687 )
        = $false )
      | ( ( proper_subset @ SV672 @ SV687 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3047]) ).

thf(3119,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
          | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3049]) ).

thf(3120,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
              | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
          | ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
              | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) ) )
        = $false )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3050]) ).

thf(3121,plain,
    ! [SV649: $i,SV610: $i,SV465: $i] :
      ( ( ( ! [SY998: $i] :
              ( ~ ( in @ SY998 @ SV465 )
              | ( in @ SY998 @ SV610 )
              | ( in @ SY998 @ SV649 ) ) )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3051]) ).

thf(3122,plain,
    ! [SV610: $i,SV465: $i,SV649: $i] :
      ( ( ( ~ ( ~ ! [SY999: $i] :
                    ( ~ ( in @ SY999 @ SV649 )
                    | ( in @ SY999 @ SV465 ) )
              | ~ ! [SY1000: $i] :
                    ( ~ ( in @ SY1000 @ SV649 )
                    | ~ ( in @ SY1000 @ SV610 ) ) ) )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3052]) ).

thf(3123,plain,
    ! [SV650: $i,SV466: $i,SV674: $i,SV535: $i] :
      ( ( ( in @ SV535 @ SV674 )
        = $false )
      | ( ( in @ SV466 @ SV650 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV650 @ SV674 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3053]) ).

thf(3124,plain,
    ! [SV721: $i,SV706: $i,SV535: $i,SV466: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV706 @ SV721 ) ) )
        = $true )
      | ( ( in @ SV466 @ SV706 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3054]) ).

thf(3125,plain,
    ! [SV716: $i,SV707: $i,SV535: $i,SV466: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV707 @ SV716 ) ) )
        = $true )
      | ( ( in @ SV535 @ SV716 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3055]) ).

thf(3126,plain,
    ! [SV468: $i,SV675: $i] :
      ( ( ( ! [SY1030: $i] :
              ~ ( in @ ( ordered_pair @ SY1030 @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
          | ~ ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) )
        = $true )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3056]) ).

thf(3127,plain,
    ! [SV468: $i,SV675: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV675 @ SV468 ) @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
          | ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) )
        = $true )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3057]) ).

thf(3128,plain,
    ! [SV676: $i,SV468: $i] :
      ( ( ( ~ ! [SY1031: $i] :
                ( ! [SY831: $i] :
                    ~ ( in @ ( ordered_pair @ SY831 @ SY1031 ) @ SV468 )
                | ( in @ SY1031 @ SV676 ) ) )
        = $false )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3058]) ).

thf(3129,plain,
    ! [SV468: $i,SV676: $i] :
      ( ( ( ~ ! [SY1033: $i] :
                ( ~ ( in @ SY1033 @ SV676 )
                | ( in @ ( ordered_pair @ ( sK14_D @ SY1033 @ SV676 @ SV468 ) @ SY1033 ) @ SV468 ) ) )
        = $false )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3058]) ).

thf(3130,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( ( sK35_C @ SV613 @ SV567 )
          = SV567 )
        = $false )
      | ( ( ~ ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 ) )
        = $true )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3059]) ).

thf(3131,plain,
    ! [SV614: $i,SV568: $i,SV722: $i] :
      ( ( ( ( SV722 != SV568 )
          | ( in @ SV722 @ SV614 ) )
        = $true )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3061]) ).

thf(3132,plain,
    ! [SV568: $i,SV614: $i,SV723: $i] :
      ( ( ( ~ ( in @ SV723 @ SV614 )
          | ( SV723 = SV568 ) )
        = $true )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3062]) ).

thf(3133,plain,
    ! [SV724: $i,SV569: $i,SV615: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV724 )
          | ~ ( in @ SV724 @ SV569 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3063]) ).

thf(3134,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ ( sK20_SY310 @ SV615 @ SV569 ) )
          | ~ ( in @ ( sK20_SY310 @ SV615 @ SV569 ) @ SV569 ) )
        = $false )
      | ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3064]) ).

thf(3135,plain,
    ! [SV616: $i,SV570: $i,SV725: $i] :
      ( ( ( ! [SY1051: $i] :
              ( ~ ( in @ SV725 @ SY1051 )
              | ~ ( in @ SY1051 @ SV570 ) )
          | ( in @ SV725 @ SV616 ) )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3065]) ).

thf(3136,plain,
    ! [SV570: $i,SV616: $i,SV726: $i] :
      ( ( ( ~ ( in @ SV726 @ SV616 )
          | ~ ( ~ ( in @ SV726 @ ( sK18_D @ SV726 @ SV616 @ SV570 ) )
              | ~ ( in @ ( sK18_D @ SV726 @ SV616 @ SV570 ) @ SV570 ) ) )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3066]) ).

thf(3137,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
              | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) )
          | ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
              | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) )
        = $false )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3069]) ).

thf(3138,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
        = $true )
      | ( ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 )
          | ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3070]) ).

thf(3139,plain,
    ! [SV621: $i,SV470: $i,SV652: $i] :
      ( ( ( ! [SY1002: $i] :
              ( ~ ( in @ SY1002 @ SV652 )
              | ( in @ SY1002 @ SV470 )
              | ( in @ SY1002 @ SV621 ) ) )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3071]) ).

thf(3140,plain,
    ! [SV621: $i,SV652: $i,SV470: $i] :
      ( ( ( ~ ( ~ ! [SY1003: $i] :
                    ( ~ ( in @ SY1003 @ SV470 )
                    | ( in @ SY1003 @ SV652 ) )
              | ~ ! [SY1004: $i] :
                    ( ~ ( in @ SY1004 @ SV621 )
                    | ( in @ SY1004 @ SV652 ) ) ) )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3072]) ).

thf(3141,plain,
    ! [SV471: $i,SV692: $i,SV536: $i] :
      ( ( ( ~ ( disjoint @ SV536 @ SV692 ) )
        = $true )
      | ( ( subset @ SV536 @ ( subset_complement @ SV471 @ SV692 ) )
        = $true )
      | ( ( element @ SV692 @ ( powerset @ SV471 ) )
        = $false )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3073]) ).

thf(3142,plain,
    ! [SV693: $i,SV471: $i,SV536: $i] :
      ( ( ( ~ ( subset @ SV536 @ ( subset_complement @ SV471 @ SV693 ) ) )
        = $true )
      | ( ( disjoint @ SV536 @ SV693 )
        = $true )
      | ( ( element @ SV693 @ ( powerset @ SV471 ) )
        = $false )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3074]) ).

thf(3143,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
              | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
               != SV472 ) )
          | ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
              | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
               != SV629 ) ) )
        = $false )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3077]) ).

thf(3144,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
        = $true )
      | ( ( ( ( sK32_D @ SV653 @ SV629 @ SV472 )
            = SV472 )
          | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
            = SV629 ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3078]) ).

thf(3145,plain,
    ! [SV630: $i,SV472: $i,SV654: $i] :
      ( ( ( ! [SY1005: $i] :
              ( ~ ( in @ SY1005 @ SV654 )
              | ( SY1005 = SV472 )
              | ( SY1005 = SV630 ) ) )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3079]) ).

thf(3146,plain,
    ! [SV630: $i,SV654: $i,SV472: $i] :
      ( ( ( ~ ( ~ ! [SY1006: $i] :
                    ( ( SY1006 != SV472 )
                    | ( in @ SY1006 @ SV654 ) )
              | ~ ! [SY1007: $i] :
                    ( ( SY1007 != SV630 )
                    | ( in @ SY1007 @ SV654 ) ) ) )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3080]) ).

thf(3147,plain,
    ! [SV682: $i,SV634: $i,SV584: $i] :
      ( ( ( disjoint @ SV584 @ SV634 )
        = $false )
      | ( ( in @ SV682 @ SV584 )
        = $false )
      | ( ( in @ SV682 @ SV634 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3081]) ).

thf(3148,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
        = $false )
      | ( ( ~ ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 ) )
        = $true )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3084]) ).

thf(3149,plain,
    ! [SV588: $i,SV638: $i,SV727: $i] :
      ( ( ( ~ ( in @ SV727 @ SV638 )
          | ( subset @ SV727 @ SV588 ) )
        = $true )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3086]) ).

thf(3150,plain,
    ! [SV638: $i,SV588: $i,SV728: $i] :
      ( ( ( ~ ( subset @ SV728 @ SV588 )
          | ( in @ SV728 @ SV638 ) )
        = $true )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3087]) ).

thf(3151,plain,
    ! [SV708: $i,SV698: $i,SV475: $i] :
      ( ( ( subset @ ( unordered_pair @ SV475 @ SV698 ) @ SV708 )
        = $false )
      | ( ( in @ SV475 @ SV708 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3089]) ).

thf(3152,plain,
    ! [SV709: $i,SV699: $i,SV475: $i] :
      ( ( ( subset @ ( unordered_pair @ SV475 @ SV699 ) @ SV709 )
        = $false )
      | ( ( in @ SV699 @ SV709 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3090]) ).

thf(3153,plain,
    ! [SV643: $i,SV599: $i,SV458: $i,SV729: $i] :
      ( ( ( ! [SY1052: $i] :
              ( ~ ( in @ SV729 @ SV458 )
              | ~ ( in @ SY1052 @ SV599 )
              | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
               != ( ordered_pair @ SV729 @ SY1052 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3091]) ).

thf(3154,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
                | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) )
          | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
           != ( ordered_pair @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) ) ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3092]) ).

thf(3155,plain,
    ! [SV644: $i,SV730: $i,SV600: $i,SV458: $i] :
      ( ( ( ! [SY1053: $i,SY1054: $i] :
              ( ~ ( in @ SY1053 @ SV458 )
              | ~ ( in @ SY1054 @ SV600 )
              | ( SV730
               != ( ordered_pair @ SY1053 @ SY1054 ) ) )
          | ( in @ SV730 @ SV644 ) )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3093]) ).

thf(3156,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( ~ ( in @ SV731 @ SV644 )
          | ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                    | ~ ( in @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
              | ( SV731
               != ( ordered_pair @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) ) ) ) )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3094]) ).

thf(3157,plain,
    ! [SV459: $i,SV659: $i] :
      ( ( ( ! [SY1010: $i] :
              ~ ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ SY1010 ) @ SV459 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) )
        = $true )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3095]) ).

thf(3158,plain,
    ! [SV459: $i,SV659: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ ( sK23_SY312 @ SV659 @ SV459 ) ) @ SV459 )
        = $true )
      | ( ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 )
        = $true )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3096]) ).

thf(3159,plain,
    ! [SV660: $i,SV459: $i] :
      ( ( ( ! [SY1011: $i] :
              ( ! [SY783: $i] :
                  ~ ( in @ ( ordered_pair @ SY1011 @ SY783 ) @ SV459 )
              | ( in @ SY1011 @ SV660 ) ) )
        = $true )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3097]) ).

thf(3160,plain,
    ! [SV459: $i,SV660: $i] :
      ( ( ( ! [SY1013: $i] :
              ( ~ ( in @ SY1013 @ SV660 )
              | ( in @ ( ordered_pair @ SY1013 @ ( sK21_D @ SY1013 @ SV660 @ SV459 ) ) @ SV459 ) ) )
        = $true )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3098]) ).

thf(3161,plain,
    ! [SV460: $i,SV684: $i] :
      ( ( ( ! [SY1038: $i] :
              ( ~ ( subset @ SY1038 @ SV684 )
              | ( in @ SY1038 @ ( sK11_SY302 @ SV684 @ SV460 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3099]) ).

thf(3162,plain,
    ! [SV460: $i,SV684: $i] :
      ( ( ( in @ ( sK11_SY302 @ SV684 @ SV460 ) @ ( sK10_B @ SV460 ) )
        = $true )
      | ( ( ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3100]) ).

thf(3163,plain,
    ! [SV732: $i,SV460: $i,SV718: $i] :
      ( ( ~ ( in @ SV718 @ ( sK10_B @ SV460 ) )
        | ~ ( subset @ SV732 @ SV718 )
        | ( in @ SV732 @ ( sK10_B @ SV460 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3101]) ).

thf(3164,plain,
    ! [SV733: $i,SV462: $i,SV719: $i] :
      ( ( ~ ( in @ SV719 @ ( sK9_B @ SV462 ) )
        | ~ ( subset @ SV733 @ SV719 )
        | ( in @ SV733 @ ( sK9_B @ SV462 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[3102]) ).

thf(3165,plain,
    ! [SV720: $i,SV700: $i,SV534: $i,SV463: $i] :
      ( ( ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV700 @ SV720 ) )
        = $false )
      | ( ( in @ SV463 @ SV700 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3104]) ).

thf(3166,plain,
    ! [SV710: $i,SV701: $i,SV534: $i,SV463: $i] :
      ( ( ( in @ ( ordered_pair @ SV463 @ SV534 ) @ ( cartesian_product2 @ SV701 @ SV710 ) )
        = $false )
      | ( ( in @ SV534 @ SV710 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3105]) ).

thf(3167,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3106]) ).

thf(3168,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
              | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) ) )
        = $false )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3107]) ).

thf(3169,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ~ ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
              | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) ) )
        = $false )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3107]) ).

thf(3170,plain,
    ! [SV647: $i,SV604: $i,SV464: $i,SV734: $i] :
      ( ( ( ~ ( in @ SV734 @ SV464 )
          | ~ ( in @ SV734 @ SV604 )
          | ( in @ SV734 @ SV647 ) )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3108]) ).

thf(3171,plain,
    ! [SV604: $i,SV464: $i,SV647: $i] :
      ( ( ( ~ ! [SY996: $i] :
                ( ~ ( in @ SY996 @ SV647 )
                | ( in @ SY996 @ SV464 ) )
          | ~ ! [SY997: $i] :
                ( ~ ( in @ SY997 @ SV647 )
                | ( in @ SY997 @ SV604 ) ) )
        = $false )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3109]) ).

thf(3172,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 )
                  | ~ ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) ) )
              | ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) ) )
        = $false )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3110]) ).

thf(3173,plain,
    ! [SV702: $i,SV664: $i] :
      ( ( ( ~ ( ! [SY1043: $i] :
                  ( ~ ( in @ SY1043 @ SV664 )
                  | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SY1043 ) )
              | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) ) )
        = $false )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3110]) ).

thf(3174,plain,
    ! [SV665: $i,SV703: $i] :
      ( ( ( ~ ! [SY1044: $i] :
                ( ~ ( ~ ( in @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) @ SV665 )
                    | ~ ~ ( in @ SY1044 @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) ) )
                | ( in @ SY1044 @ SV703 ) )
          | ~ ! [SY1045: $i] :
                ( ~ ( in @ SY1045 @ SV703 )
                | ! [SY1021: $i] :
                    ( ~ ( in @ SY1021 @ SV665 )
                    | ( in @ SY1045 @ SY1021 ) ) ) )
        = $false )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3111]) ).

thf(3175,plain,
    ! [SV666: $i,SV712: $i] :
      ( ( ( SV712
          = ( set_meet @ SV666 ) )
        = $false )
      | ( ( SV712 = empty_set )
        = $true )
      | ( ( SV666 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3112]) ).

thf(3176,plain,
    ! [SV667: $i,SV713: $i] :
      ( ( ( SV713 = empty_set )
        = $false )
      | ( ( SV713
          = ( set_meet @ SV667 ) )
        = $true )
      | ( ( SV667 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3113]) ).

thf(3177,plain,
    ! [SV670: $i,SV714: $i] :
      ( ( ( element @ SV714 @ SV670 )
        = $false )
      | ( ( empty @ SV714 )
        = $true )
      | ( ( empty @ SV670 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3116]) ).

thf(3178,plain,
    ! [SV671: $i,SV715: $i] :
      ( ( ( empty @ SV715 )
        = $false )
      | ( ( element @ SV715 @ SV671 )
        = $true )
      | ( ( empty @ SV671 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3117]) ).

thf(3179,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 ) )
        = $true )
      | ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
        = $true )
      | ( ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3119]) ).

thf(3180,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
              | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) ) )
        = $false )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3120]) ).

thf(3181,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
              | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) ) )
        = $false )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3120]) ).

thf(3182,plain,
    ! [SV649: $i,SV610: $i,SV465: $i,SV735: $i] :
      ( ( ( ~ ( in @ SV735 @ SV465 )
          | ( in @ SV735 @ SV610 )
          | ( in @ SV735 @ SV649 ) )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3121]) ).

thf(3183,plain,
    ! [SV610: $i,SV465: $i,SV649: $i] :
      ( ( ( ~ ! [SY999: $i] :
                ( ~ ( in @ SY999 @ SV649 )
                | ( in @ SY999 @ SV465 ) )
          | ~ ! [SY1000: $i] :
                ( ~ ( in @ SY1000 @ SV649 )
                | ~ ( in @ SY1000 @ SV610 ) ) )
        = $false )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3122]) ).

thf(3184,plain,
    ! [SV721: $i,SV706: $i,SV535: $i,SV466: $i] :
      ( ( ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV706 @ SV721 ) )
        = $false )
      | ( ( in @ SV466 @ SV706 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3124]) ).

thf(3185,plain,
    ! [SV716: $i,SV707: $i,SV535: $i,SV466: $i] :
      ( ( ( in @ ( ordered_pair @ SV466 @ SV535 ) @ ( cartesian_product2 @ SV707 @ SV716 ) )
        = $false )
      | ( ( in @ SV535 @ SV716 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3125]) ).

thf(3186,plain,
    ! [SV468: $i,SV675: $i] :
      ( ( ( ! [SY1030: $i] :
              ~ ( in @ ( ordered_pair @ SY1030 @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 ) )
        = $true )
      | ( ( ~ ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) )
        = $true )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3126]) ).

thf(3187,plain,
    ! [SV468: $i,SV675: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK16_SY308 @ SV675 @ SV468 ) @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
        = $true )
      | ( ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 )
        = $true )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3127]) ).

thf(3188,plain,
    ! [SV676: $i,SV468: $i] :
      ( ( ( ! [SY1031: $i] :
              ( ! [SY831: $i] :
                  ~ ( in @ ( ordered_pair @ SY831 @ SY1031 ) @ SV468 )
              | ( in @ SY1031 @ SV676 ) ) )
        = $true )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3128]) ).

thf(3189,plain,
    ! [SV468: $i,SV676: $i] :
      ( ( ( ! [SY1033: $i] :
              ( ~ ( in @ SY1033 @ SV676 )
              | ( in @ ( ordered_pair @ ( sK14_D @ SY1033 @ SV676 @ SV468 ) @ SY1033 ) @ SV468 ) ) )
        = $true )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3129]) ).

thf(3190,plain,
    ! [SV567: $i,SV613: $i] :
      ( ( ( in @ ( sK35_C @ SV613 @ SV567 ) @ SV613 )
        = $false )
      | ( ( ( sK35_C @ SV613 @ SV567 )
          = SV567 )
        = $false )
      | ( ( SV613
          = ( singleton @ SV567 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3130]) ).

thf(3191,plain,
    ! [SV614: $i,SV568: $i,SV722: $i] :
      ( ( ( ( SV722 != SV568 ) )
        = $true )
      | ( ( in @ SV722 @ SV614 )
        = $true )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3131]) ).

thf(3192,plain,
    ! [SV568: $i,SV614: $i,SV723: $i] :
      ( ( ( ~ ( in @ SV723 @ SV614 ) )
        = $true )
      | ( ( SV723 = SV568 )
        = $true )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3132]) ).

thf(3193,plain,
    ! [SV724: $i,SV569: $i,SV615: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV724 ) )
        = $true )
      | ( ( ~ ( in @ SV724 @ SV569 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3133]) ).

thf(3194,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ ( sK20_SY310 @ SV615 @ SV569 ) ) )
        = $false )
      | ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3134]) ).

thf(3195,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( ~ ( in @ ( sK20_SY310 @ SV615 @ SV569 ) @ SV569 ) )
        = $false )
      | ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3134]) ).

thf(3196,plain,
    ! [SV616: $i,SV570: $i,SV725: $i] :
      ( ( ( ! [SY1051: $i] :
              ( ~ ( in @ SV725 @ SY1051 )
              | ~ ( in @ SY1051 @ SV570 ) ) )
        = $true )
      | ( ( in @ SV725 @ SV616 )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3135]) ).

thf(3197,plain,
    ! [SV570: $i,SV616: $i,SV726: $i] :
      ( ( ( ~ ( in @ SV726 @ SV616 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV726 @ ( sK18_D @ SV726 @ SV616 @ SV570 ) )
              | ~ ( in @ ( sK18_D @ SV726 @ SV616 @ SV570 ) @ SV570 ) ) )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3136]) ).

thf(3198,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
              | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) ) )
        = $false )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3137]) ).

thf(3199,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
              | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) ) )
        = $false )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3137]) ).

thf(3200,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 )
        = $true )
      | ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 )
        = $true )
      | ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3138]) ).

thf(3201,plain,
    ! [SV621: $i,SV470: $i,SV652: $i,SV736: $i] :
      ( ( ( ~ ( in @ SV736 @ SV652 )
          | ( in @ SV736 @ SV470 )
          | ( in @ SV736 @ SV621 ) )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3139]) ).

thf(3202,plain,
    ! [SV621: $i,SV652: $i,SV470: $i] :
      ( ( ( ~ ! [SY1003: $i] :
                ( ~ ( in @ SY1003 @ SV470 )
                | ( in @ SY1003 @ SV652 ) )
          | ~ ! [SY1004: $i] :
                ( ~ ( in @ SY1004 @ SV621 )
                | ( in @ SY1004 @ SV652 ) ) )
        = $false )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3140]) ).

thf(3203,plain,
    ! [SV471: $i,SV692: $i,SV536: $i] :
      ( ( ( disjoint @ SV536 @ SV692 )
        = $false )
      | ( ( subset @ SV536 @ ( subset_complement @ SV471 @ SV692 ) )
        = $true )
      | ( ( element @ SV692 @ ( powerset @ SV471 ) )
        = $false )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3141]) ).

thf(3204,plain,
    ! [SV693: $i,SV471: $i,SV536: $i] :
      ( ( ( subset @ SV536 @ ( subset_complement @ SV471 @ SV693 ) )
        = $false )
      | ( ( disjoint @ SV536 @ SV693 )
        = $true )
      | ( ( element @ SV693 @ ( powerset @ SV471 ) )
        = $false )
      | ( ( element @ SV536 @ ( powerset @ SV471 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3142]) ).

thf(3205,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
              | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
               != SV472 ) ) )
        = $false )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3143]) ).

thf(3206,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
              | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
               != SV629 ) ) )
        = $false )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3143]) ).

thf(3207,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ( sK32_D @ SV653 @ SV629 @ SV472 )
          = SV472 )
        = $true )
      | ( ( ( sK32_D @ SV653 @ SV629 @ SV472 )
          = SV629 )
        = $true )
      | ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3144]) ).

thf(3208,plain,
    ! [SV630: $i,SV472: $i,SV654: $i,SV737: $i] :
      ( ( ( ~ ( in @ SV737 @ SV654 )
          | ( SV737 = SV472 )
          | ( SV737 = SV630 ) )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3145]) ).

thf(3209,plain,
    ! [SV630: $i,SV654: $i,SV472: $i] :
      ( ( ( ~ ! [SY1006: $i] :
                ( ( SY1006 != SV472 )
                | ( in @ SY1006 @ SV654 ) )
          | ~ ! [SY1007: $i] :
                ( ( SY1007 != SV630 )
                | ( in @ SY1007 @ SV654 ) ) )
        = $false )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3146]) ).

thf(3210,plain,
    ! [SV587: $i,SV637: $i] :
      ( ( ( subset @ ( sK33_C @ SV637 @ SV587 ) @ SV587 )
        = $false )
      | ( ( in @ ( sK33_C @ SV637 @ SV587 ) @ SV637 )
        = $false )
      | ( ( SV637
          = ( powerset @ SV587 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3148]) ).

thf(3211,plain,
    ! [SV588: $i,SV638: $i,SV727: $i] :
      ( ( ( ~ ( in @ SV727 @ SV638 ) )
        = $true )
      | ( ( subset @ SV727 @ SV588 )
        = $true )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3149]) ).

thf(3212,plain,
    ! [SV638: $i,SV588: $i,SV728: $i] :
      ( ( ( ~ ( subset @ SV728 @ SV588 ) )
        = $true )
      | ( ( in @ SV728 @ SV638 )
        = $true )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3150]) ).

thf(3213,plain,
    ! [SV643: $i,SV599: $i,SV738: $i,SV458: $i,SV729: $i] :
      ( ( ( ~ ( in @ SV729 @ SV458 )
          | ~ ( in @ SV738 @ SV599 )
          | ( ( sK28_D @ SV643 @ SV599 @ SV458 )
           != ( ordered_pair @ SV729 @ SV738 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3153]) ).

thf(3214,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
                | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3154]) ).

thf(3215,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ( ( sK28_D @ SV643 @ SV599 @ SV458 )
           != ( ordered_pair @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) ) ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3154]) ).

thf(3216,plain,
    ! [SV644: $i,SV730: $i,SV600: $i,SV458: $i] :
      ( ( ( ! [SY1053: $i,SY1054: $i] :
              ( ~ ( in @ SY1053 @ SV458 )
              | ~ ( in @ SY1054 @ SV600 )
              | ( SV730
               != ( ordered_pair @ SY1053 @ SY1054 ) ) ) )
        = $true )
      | ( ( in @ SV730 @ SV644 )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3155]) ).

thf(3217,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( ~ ( in @ SV731 @ SV644 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                    | ~ ( in @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
              | ( SV731
               != ( ordered_pair @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) ) ) ) )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3156]) ).

thf(3218,plain,
    ! [SV739: $i,SV459: $i,SV659: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ SV739 ) @ SV459 ) )
        = $true )
      | ( ( ~ ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) )
        = $true )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3157]) ).

thf(3219,plain,
    ! [SV660: $i,SV459: $i,SV740: $i] :
      ( ( ( ! [SY1055: $i] :
              ~ ( in @ ( ordered_pair @ SV740 @ SY1055 ) @ SV459 )
          | ( in @ SV740 @ SV660 ) )
        = $true )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3159]) ).

thf(3220,plain,
    ! [SV459: $i,SV660: $i,SV741: $i] :
      ( ( ( ~ ( in @ SV741 @ SV660 )
          | ( in @ ( ordered_pair @ SV741 @ ( sK21_D @ SV741 @ SV660 @ SV459 ) ) @ SV459 ) )
        = $true )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3160]) ).

thf(3221,plain,
    ! [SV460: $i,SV684: $i,SV742: $i] :
      ( ( ( ~ ( subset @ SV742 @ SV684 )
          | ( in @ SV742 @ ( sK11_SY302 @ SV684 @ SV460 ) ) )
        = $true )
      | ( ( ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3161]) ).

thf(3222,plain,
    ! [SV460: $i,SV684: $i] :
      ( ( ( in @ SV684 @ ( sK10_B @ SV460 ) )
        = $false )
      | ( ( in @ ( sK11_SY302 @ SV684 @ SV460 ) @ ( sK10_B @ SV460 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3162]) ).

thf(3223,plain,
    ! [SV732: $i,SV460: $i,SV718: $i] :
      ( ( ( ~ ( in @ SV718 @ ( sK10_B @ SV460 ) )
          | ~ ( subset @ SV732 @ SV718 ) )
        = $true )
      | ( ( in @ SV732 @ ( sK10_B @ SV460 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3163]) ).

thf(3224,plain,
    ! [SV733: $i,SV462: $i,SV719: $i] :
      ( ( ( ~ ( in @ SV719 @ ( sK9_B @ SV462 ) )
          | ~ ( subset @ SV733 @ SV719 ) )
        = $true )
      | ( ( in @ SV733 @ ( sK9_B @ SV462 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3164]) ).

thf(3225,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
        = $false )
      | ( ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 ) )
        = $true )
      | ( ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3167]) ).

thf(3226,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
          | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3168]) ).

thf(3227,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
          | ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3169]) ).

thf(3228,plain,
    ! [SV647: $i,SV604: $i,SV464: $i,SV734: $i] :
      ( ( ( ~ ( in @ SV734 @ SV464 )
          | ~ ( in @ SV734 @ SV604 ) )
        = $true )
      | ( ( in @ SV734 @ SV647 )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3170]) ).

thf(3229,plain,
    ! [SV604: $i,SV464: $i,SV647: $i] :
      ( ( ( ~ ! [SY996: $i] :
                ( ~ ( in @ SY996 @ SV647 )
                | ( in @ SY996 @ SV464 ) ) )
        = $false )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3171]) ).

thf(3230,plain,
    ! [SV464: $i,SV604: $i,SV647: $i] :
      ( ( ( ~ ! [SY997: $i] :
                ( ~ ( in @ SY997 @ SV647 )
                | ( in @ SY997 @ SV604 ) ) )
        = $false )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3171]) ).

thf(3231,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 )
              | ~ ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) ) )
          | ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3172]) ).

thf(3232,plain,
    ! [SV702: $i,SV664: $i] :
      ( ( ( ! [SY1043: $i] :
              ( ~ ( in @ SY1043 @ SV664 )
              | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SY1043 ) )
          | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3173]) ).

thf(3233,plain,
    ! [SV665: $i,SV703: $i] :
      ( ( ( ~ ! [SY1044: $i] :
                ( ~ ( ~ ( in @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) @ SV665 )
                    | ~ ~ ( in @ SY1044 @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) ) )
                | ( in @ SY1044 @ SV703 ) ) )
        = $false )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3174]) ).

thf(3234,plain,
    ! [SV665: $i,SV703: $i] :
      ( ( ( ~ ! [SY1045: $i] :
                ( ~ ( in @ SY1045 @ SV703 )
                | ! [SY1021: $i] :
                    ( ~ ( in @ SY1021 @ SV665 )
                    | ( in @ SY1045 @ SY1021 ) ) ) )
        = $false )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3174]) ).

thf(3235,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
        = $false )
      | ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
        = $true )
      | ( ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3179]) ).

thf(3236,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
          | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3180]) ).

thf(3237,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
          | ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 ) )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3181]) ).

thf(3238,plain,
    ! [SV649: $i,SV610: $i,SV465: $i,SV735: $i] :
      ( ( ( ~ ( in @ SV735 @ SV465 )
          | ( in @ SV735 @ SV610 ) )
        = $true )
      | ( ( in @ SV735 @ SV649 )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3182]) ).

thf(3239,plain,
    ! [SV610: $i,SV465: $i,SV649: $i] :
      ( ( ( ~ ! [SY999: $i] :
                ( ~ ( in @ SY999 @ SV649 )
                | ( in @ SY999 @ SV465 ) ) )
        = $false )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3183]) ).

thf(3240,plain,
    ! [SV465: $i,SV610: $i,SV649: $i] :
      ( ( ( ~ ! [SY1000: $i] :
                ( ~ ( in @ SY1000 @ SV649 )
                | ~ ( in @ SY1000 @ SV610 ) ) )
        = $false )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3183]) ).

thf(3241,plain,
    ! [SV468: $i,SV675: $i,SV743: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV743 @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 ) )
        = $true )
      | ( ( ~ ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) )
        = $true )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3186]) ).

thf(3242,plain,
    ! [SV676: $i,SV468: $i,SV744: $i] :
      ( ( ( ! [SY1056: $i] :
              ~ ( in @ ( ordered_pair @ SY1056 @ SV744 ) @ SV468 )
          | ( in @ SV744 @ SV676 ) )
        = $true )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3188]) ).

thf(3243,plain,
    ! [SV468: $i,SV676: $i,SV745: $i] :
      ( ( ( ~ ( in @ SV745 @ SV676 )
          | ( in @ ( ordered_pair @ ( sK14_D @ SV745 @ SV676 @ SV468 ) @ SV745 ) @ SV468 ) )
        = $true )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3189]) ).

thf(3244,plain,
    ! [SV614: $i,SV568: $i,SV722: $i] :
      ( ( ( SV722 = SV568 )
        = $false )
      | ( ( in @ SV722 @ SV614 )
        = $true )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3191]) ).

thf(3245,plain,
    ! [SV568: $i,SV614: $i,SV723: $i] :
      ( ( ( in @ SV723 @ SV614 )
        = $false )
      | ( ( SV723 = SV568 )
        = $true )
      | ( ( SV614
          = ( singleton @ SV568 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3192]) ).

thf(3246,plain,
    ! [SV724: $i,SV569: $i,SV615: $i] :
      ( ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV724 )
        = $false )
      | ( ( ~ ( in @ SV724 @ SV569 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3193]) ).

thf(3247,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ ( sK20_SY310 @ SV615 @ SV569 ) )
        = $true )
      | ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3194]) ).

thf(3248,plain,
    ! [SV569: $i,SV615: $i] :
      ( ( ( in @ ( sK20_SY310 @ SV615 @ SV569 ) @ SV569 )
        = $true )
      | ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3195]) ).

thf(3249,plain,
    ! [SV616: $i,SV570: $i,SV746: $i,SV725: $i] :
      ( ( ( ~ ( in @ SV725 @ SV746 )
          | ~ ( in @ SV746 @ SV570 ) )
        = $true )
      | ( ( in @ SV725 @ SV616 )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3196]) ).

thf(3250,plain,
    ! [SV570: $i,SV616: $i,SV726: $i] :
      ( ( ( in @ SV726 @ SV616 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV726 @ ( sK18_D @ SV726 @ SV616 @ SV570 ) )
              | ~ ( in @ ( sK18_D @ SV726 @ SV616 @ SV570 ) @ SV570 ) ) )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3197]) ).

thf(3251,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
          | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3198]) ).

thf(3252,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
          | ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3199]) ).

thf(3253,plain,
    ! [SV621: $i,SV470: $i,SV652: $i,SV736: $i] :
      ( ( ( ~ ( in @ SV736 @ SV652 ) )
        = $true )
      | ( ( ( in @ SV736 @ SV470 )
          | ( in @ SV736 @ SV621 ) )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3201]) ).

thf(3254,plain,
    ! [SV621: $i,SV652: $i,SV470: $i] :
      ( ( ( ~ ! [SY1003: $i] :
                ( ~ ( in @ SY1003 @ SV470 )
                | ( in @ SY1003 @ SV652 ) ) )
        = $false )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3202]) ).

thf(3255,plain,
    ! [SV470: $i,SV652: $i,SV621: $i] :
      ( ( ( ~ ! [SY1004: $i] :
                ( ~ ( in @ SY1004 @ SV621 )
                | ( in @ SY1004 @ SV652 ) ) )
        = $false )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3202]) ).

thf(3256,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
          | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
           != SV472 ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3205]) ).

thf(3257,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
          | ( ( sK32_D @ SV653 @ SV629 @ SV472 )
           != SV629 ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3206]) ).

thf(3258,plain,
    ! [SV630: $i,SV472: $i,SV654: $i,SV737: $i] :
      ( ( ( ~ ( in @ SV737 @ SV654 ) )
        = $true )
      | ( ( ( SV737 = SV472 )
          | ( SV737 = SV630 ) )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3208]) ).

thf(3259,plain,
    ! [SV630: $i,SV654: $i,SV472: $i] :
      ( ( ( ~ ! [SY1006: $i] :
                ( ( SY1006 != SV472 )
                | ( in @ SY1006 @ SV654 ) ) )
        = $false )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3209]) ).

thf(3260,plain,
    ! [SV472: $i,SV654: $i,SV630: $i] :
      ( ( ( ~ ! [SY1007: $i] :
                ( ( SY1007 != SV630 )
                | ( in @ SY1007 @ SV654 ) ) )
        = $false )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3209]) ).

thf(3261,plain,
    ! [SV588: $i,SV638: $i,SV727: $i] :
      ( ( ( in @ SV727 @ SV638 )
        = $false )
      | ( ( subset @ SV727 @ SV588 )
        = $true )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3211]) ).

thf(3262,plain,
    ! [SV638: $i,SV588: $i,SV728: $i] :
      ( ( ( subset @ SV728 @ SV588 )
        = $false )
      | ( ( in @ SV728 @ SV638 )
        = $true )
      | ( ( SV638
          = ( powerset @ SV588 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3212]) ).

thf(3263,plain,
    ! [SV643: $i,SV599: $i,SV738: $i,SV458: $i,SV729: $i] :
      ( ( ( ~ ( in @ SV729 @ SV458 )
          | ~ ( in @ SV738 @ SV599 ) )
        = $true )
      | ( ( ( ( sK28_D @ SV643 @ SV599 @ SV458 )
           != ( ordered_pair @ SV729 @ SV738 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3213]) ).

thf(3264,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
              | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) ) )
        = $true )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3214]) ).

thf(3265,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ( sK28_D @ SV643 @ SV599 @ SV458 )
          = ( ordered_pair @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) ) )
        = $true )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3215]) ).

thf(3266,plain,
    ! [SV644: $i,SV730: $i,SV600: $i,SV458: $i,SV747: $i] :
      ( ( ( ! [SY1057: $i] :
              ( ~ ( in @ SV747 @ SV458 )
              | ~ ( in @ SY1057 @ SV600 )
              | ( SV730
               != ( ordered_pair @ SV747 @ SY1057 ) ) ) )
        = $true )
      | ( ( in @ SV730 @ SV644 )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3216]) ).

thf(3267,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                    | ~ ( in @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
              | ( SV731
               != ( ordered_pair @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) ) ) ) )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3217]) ).

thf(3268,plain,
    ! [SV739: $i,SV459: $i,SV659: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ SV739 ) @ SV459 )
        = $false )
      | ( ( ~ ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 ) )
        = $true )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3218]) ).

thf(3269,plain,
    ! [SV660: $i,SV459: $i,SV740: $i] :
      ( ( ( ! [SY1055: $i] :
              ~ ( in @ ( ordered_pair @ SV740 @ SY1055 ) @ SV459 ) )
        = $true )
      | ( ( in @ SV740 @ SV660 )
        = $true )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3219]) ).

thf(3270,plain,
    ! [SV459: $i,SV660: $i,SV741: $i] :
      ( ( ( ~ ( in @ SV741 @ SV660 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV741 @ ( sK21_D @ SV741 @ SV660 @ SV459 ) ) @ SV459 )
        = $true )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3220]) ).

thf(3271,plain,
    ! [SV460: $i,SV684: $i,SV742: $i] :
      ( ( ( ~ ( subset @ SV742 @ SV684 ) )
        = $true )
      | ( ( in @ SV742 @ ( sK11_SY302 @ SV684 @ SV460 ) )
        = $true )
      | ( ( ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3221]) ).

thf(3272,plain,
    ! [SV732: $i,SV460: $i,SV718: $i] :
      ( ( ( ~ ( in @ SV718 @ ( sK10_B @ SV460 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV732 @ SV718 ) )
        = $true )
      | ( ( in @ SV732 @ ( sK10_B @ SV460 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3223]) ).

thf(3273,plain,
    ! [SV733: $i,SV462: $i,SV719: $i] :
      ( ( ( ~ ( in @ SV719 @ ( sK9_B @ SV462 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV733 @ SV719 ) )
        = $true )
      | ( ( in @ SV733 @ ( sK9_B @ SV462 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3224]) ).

thf(3274,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
        = $false )
      | ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
        = $false )
      | ( ( ~ ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 ) )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3225]) ).

thf(3275,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
        = $true )
      | ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3226]) ).

thf(3276,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
        = $true )
      | ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 )
        = $true )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3227]) ).

thf(3277,plain,
    ! [SV647: $i,SV604: $i,SV464: $i,SV734: $i] :
      ( ( ( ~ ( in @ SV734 @ SV464 ) )
        = $true )
      | ( ( ~ ( in @ SV734 @ SV604 ) )
        = $true )
      | ( ( in @ SV734 @ SV647 )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3228]) ).

thf(3278,plain,
    ! [SV604: $i,SV464: $i,SV647: $i] :
      ( ( ( ! [SY996: $i] :
              ( ~ ( in @ SY996 @ SV647 )
              | ( in @ SY996 @ SV464 ) ) )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3229]) ).

thf(3279,plain,
    ! [SV464: $i,SV604: $i,SV647: $i] :
      ( ( ( ! [SY997: $i] :
              ( ~ ( in @ SY997 @ SV647 )
              | ( in @ SY997 @ SV604 ) ) )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3230]) ).

thf(3280,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 )
              | ~ ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3231]) ).

thf(3281,plain,
    ! [SV702: $i,SV664: $i] :
      ( ( ( ! [SY1043: $i] :
              ( ~ ( in @ SY1043 @ SV664 )
              | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SY1043 ) ) )
        = $true )
      | ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3232]) ).

thf(3282,plain,
    ! [SV665: $i,SV703: $i] :
      ( ( ( ! [SY1044: $i] :
              ( ~ ( ~ ( in @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) @ SV665 )
                  | ~ ~ ( in @ SY1044 @ ( sK36_D @ SY1044 @ SV703 @ SV665 ) ) )
              | ( in @ SY1044 @ SV703 ) ) )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3233]) ).

thf(3283,plain,
    ! [SV665: $i,SV703: $i] :
      ( ( ( ! [SY1045: $i] :
              ( ~ ( in @ SY1045 @ SV703 )
              | ! [SY1021: $i] :
                  ( ~ ( in @ SY1021 @ SV665 )
                  | ( in @ SY1045 @ SY1021 ) ) ) )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3234]) ).

thf(3284,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 )
        = $false )
      | ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
        = $true )
      | ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
        = $false )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3235]) ).

thf(3285,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV465 )
        = $true )
      | ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3236]) ).

thf(3286,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 ) )
        = $true )
      | ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3237]) ).

thf(3287,plain,
    ! [SV649: $i,SV610: $i,SV465: $i,SV735: $i] :
      ( ( ( ~ ( in @ SV735 @ SV465 ) )
        = $true )
      | ( ( in @ SV735 @ SV610 )
        = $true )
      | ( ( in @ SV735 @ SV649 )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3238]) ).

thf(3288,plain,
    ! [SV610: $i,SV465: $i,SV649: $i] :
      ( ( ( ! [SY999: $i] :
              ( ~ ( in @ SY999 @ SV649 )
              | ( in @ SY999 @ SV465 ) ) )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3239]) ).

thf(3289,plain,
    ! [SV465: $i,SV610: $i,SV649: $i] :
      ( ( ( ! [SY1000: $i] :
              ( ~ ( in @ SY1000 @ SV649 )
              | ~ ( in @ SY1000 @ SV610 ) ) )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3240]) ).

thf(3290,plain,
    ! [SV468: $i,SV675: $i,SV743: $i] :
      ( ( ( in @ ( ordered_pair @ SV743 @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
        = $false )
      | ( ( ~ ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 ) )
        = $true )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3241]) ).

thf(3291,plain,
    ! [SV676: $i,SV468: $i,SV744: $i] :
      ( ( ( ! [SY1056: $i] :
              ~ ( in @ ( ordered_pair @ SY1056 @ SV744 ) @ SV468 ) )
        = $true )
      | ( ( in @ SV744 @ SV676 )
        = $true )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3242]) ).

thf(3292,plain,
    ! [SV468: $i,SV676: $i,SV745: $i] :
      ( ( ( ~ ( in @ SV745 @ SV676 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK14_D @ SV745 @ SV676 @ SV468 ) @ SV745 ) @ SV468 )
        = $true )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3243]) ).

thf(3293,plain,
    ! [SV615: $i,SV569: $i,SV724: $i] :
      ( ( ( in @ SV724 @ SV569 )
        = $false )
      | ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV724 )
        = $false )
      | ( ( ~ ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 ) )
        = $true )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3246]) ).

thf(3294,plain,
    ! [SV616: $i,SV570: $i,SV746: $i,SV725: $i] :
      ( ( ( ~ ( in @ SV725 @ SV746 ) )
        = $true )
      | ( ( ~ ( in @ SV746 @ SV570 ) )
        = $true )
      | ( ( in @ SV725 @ SV616 )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3249]) ).

thf(3295,plain,
    ! [SV570: $i,SV616: $i,SV726: $i] :
      ( ( ( ~ ( in @ SV726 @ ( sK18_D @ SV726 @ SV616 @ SV570 ) )
          | ~ ( in @ ( sK18_D @ SV726 @ SV616 @ SV570 ) @ SV570 ) )
        = $false )
      | ( ( in @ SV726 @ SV616 )
        = $false )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3250]) ).

thf(3296,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 ) )
        = $true )
      | ( ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3251]) ).

thf(3297,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 ) )
        = $true )
      | ( ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3252]) ).

thf(3298,plain,
    ! [SV621: $i,SV470: $i,SV652: $i,SV736: $i] :
      ( ( ( in @ SV736 @ SV652 )
        = $false )
      | ( ( ( in @ SV736 @ SV470 )
          | ( in @ SV736 @ SV621 ) )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3253]) ).

thf(3299,plain,
    ! [SV621: $i,SV652: $i,SV470: $i] :
      ( ( ( ! [SY1003: $i] :
              ( ~ ( in @ SY1003 @ SV470 )
              | ( in @ SY1003 @ SV652 ) ) )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3254]) ).

thf(3300,plain,
    ! [SV470: $i,SV652: $i,SV621: $i] :
      ( ( ( ! [SY1004: $i] :
              ( ~ ( in @ SY1004 @ SV621 )
              | ( in @ SY1004 @ SV652 ) ) )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3255]) ).

thf(3301,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 ) )
        = $true )
      | ( ( ( ( sK32_D @ SV653 @ SV629 @ SV472 )
           != SV472 ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3256]) ).

thf(3302,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ~ ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 ) )
        = $true )
      | ( ( ( ( sK32_D @ SV653 @ SV629 @ SV472 )
           != SV629 ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3257]) ).

thf(3303,plain,
    ! [SV630: $i,SV472: $i,SV654: $i,SV737: $i] :
      ( ( ( in @ SV737 @ SV654 )
        = $false )
      | ( ( ( SV737 = SV472 )
          | ( SV737 = SV630 ) )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3258]) ).

thf(3304,plain,
    ! [SV630: $i,SV654: $i,SV472: $i] :
      ( ( ( ! [SY1006: $i] :
              ( ( SY1006 != SV472 )
              | ( in @ SY1006 @ SV654 ) ) )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3259]) ).

thf(3305,plain,
    ! [SV472: $i,SV654: $i,SV630: $i] :
      ( ( ( ! [SY1007: $i] :
              ( ( SY1007 != SV630 )
              | ( in @ SY1007 @ SV654 ) ) )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3260]) ).

thf(3306,plain,
    ! [SV643: $i,SV599: $i,SV738: $i,SV458: $i,SV729: $i] :
      ( ( ( ~ ( in @ SV729 @ SV458 ) )
        = $true )
      | ( ( ~ ( in @ SV738 @ SV599 ) )
        = $true )
      | ( ( ( ( sK28_D @ SV643 @ SV599 @ SV458 )
           != ( ordered_pair @ SV729 @ SV738 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3263]) ).

thf(3307,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
          | ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3264]) ).

thf(3308,plain,
    ! [SV644: $i,SV730: $i,SV600: $i,SV748: $i,SV458: $i,SV747: $i] :
      ( ( ( ~ ( in @ SV747 @ SV458 )
          | ~ ( in @ SV748 @ SV600 )
          | ( SV730
           != ( ordered_pair @ SV747 @ SV748 ) ) )
        = $true )
      | ( ( in @ SV730 @ SV644 )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3266]) ).

thf(3309,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                | ~ ( in @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
          | ( SV731
           != ( ordered_pair @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) ) ) )
        = $false )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3267]) ).

thf(3310,plain,
    ! [SV739: $i,SV459: $i,SV659: $i] :
      ( ( ( in @ ( sK22_C @ SV659 @ SV459 ) @ SV659 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK22_C @ SV659 @ SV459 ) @ SV739 ) @ SV459 )
        = $false )
      | ( ( SV659
          = ( relation_dom @ SV459 ) )
        = $true )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3268]) ).

thf(3311,plain,
    ! [SV660: $i,SV459: $i,SV749: $i,SV740: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV740 @ SV749 ) @ SV459 ) )
        = $true )
      | ( ( in @ SV740 @ SV660 )
        = $true )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3269]) ).

thf(3312,plain,
    ! [SV459: $i,SV660: $i,SV741: $i] :
      ( ( ( in @ SV741 @ SV660 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV741 @ ( sK21_D @ SV741 @ SV660 @ SV459 ) ) @ SV459 )
        = $true )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3270]) ).

thf(3313,plain,
    ! [SV460: $i,SV684: $i,SV742: $i] :
      ( ( ( subset @ SV742 @ SV684 )
        = $false )
      | ( ( in @ SV742 @ ( sK11_SY302 @ SV684 @ SV460 ) )
        = $true )
      | ( ( ~ ( in @ SV684 @ ( sK10_B @ SV460 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3271]) ).

thf(3314,plain,
    ! [SV732: $i,SV460: $i,SV718: $i] :
      ( ( ( in @ SV718 @ ( sK10_B @ SV460 ) )
        = $false )
      | ( ( ~ ( subset @ SV732 @ SV718 ) )
        = $true )
      | ( ( in @ SV732 @ ( sK10_B @ SV460 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3272]) ).

thf(3315,plain,
    ! [SV733: $i,SV462: $i,SV719: $i] :
      ( ( ( in @ SV719 @ ( sK9_B @ SV462 ) )
        = $false )
      | ( ( ~ ( subset @ SV733 @ SV719 ) )
        = $true )
      | ( ( in @ SV733 @ ( sK9_B @ SV462 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3273]) ).

thf(3316,plain,
    ! [SV464: $i,SV603: $i,SV646: $i] :
      ( ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV646 )
        = $false )
      | ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV464 )
        = $false )
      | ( ( in @ ( sK24_D @ SV646 @ SV603 @ SV464 ) @ SV603 )
        = $false )
      | ( ( SV646
          = ( set_intersection2 @ SV464 @ SV603 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3274]) ).

thf(3317,plain,
    ! [SV647: $i,SV604: $i,SV464: $i,SV734: $i] :
      ( ( ( in @ SV734 @ SV464 )
        = $false )
      | ( ( ~ ( in @ SV734 @ SV604 ) )
        = $true )
      | ( ( in @ SV734 @ SV647 )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3277]) ).

thf(3318,plain,
    ! [SV604: $i,SV464: $i,SV647: $i,SV750: $i] :
      ( ( ( ~ ( in @ SV750 @ SV647 )
          | ( in @ SV750 @ SV464 ) )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3278]) ).

thf(3319,plain,
    ! [SV464: $i,SV604: $i,SV647: $i,SV751: $i] :
      ( ( ( ~ ( in @ SV751 @ SV647 )
          | ( in @ SV751 @ SV604 ) )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3279]) ).

thf(3320,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 )
          | ~ ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3280]) ).

thf(3321,plain,
    ! [SV702: $i,SV664: $i,SV752: $i] :
      ( ( ( ~ ( in @ SV752 @ SV664 )
          | ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV752 ) )
        = $true )
      | ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3281]) ).

thf(3322,plain,
    ! [SV665: $i,SV703: $i,SV753: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK36_D @ SV753 @ SV703 @ SV665 ) @ SV665 )
              | ~ ~ ( in @ SV753 @ ( sK36_D @ SV753 @ SV703 @ SV665 ) ) )
          | ( in @ SV753 @ SV703 ) )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3282]) ).

thf(3323,plain,
    ! [SV665: $i,SV703: $i,SV754: $i] :
      ( ( ( ~ ( in @ SV754 @ SV703 )
          | ! [SY1058: $i] :
              ( ~ ( in @ SY1058 @ SV665 )
              | ( in @ SV754 @ SY1058 ) ) )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3283]) ).

thf(3324,plain,
    ! [SV465: $i,SV609: $i,SV648: $i] :
      ( ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV609 )
        = $false )
      | ( ( in @ ( sK17_D @ SV648 @ SV609 @ SV465 ) @ SV648 )
        = $true )
      | ( ( SV648
          = ( set_difference @ SV465 @ SV609 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3286]) ).

thf(3325,plain,
    ! [SV649: $i,SV610: $i,SV465: $i,SV735: $i] :
      ( ( ( in @ SV735 @ SV465 )
        = $false )
      | ( ( in @ SV735 @ SV610 )
        = $true )
      | ( ( in @ SV735 @ SV649 )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3287]) ).

thf(3326,plain,
    ! [SV610: $i,SV465: $i,SV649: $i,SV755: $i] :
      ( ( ( ~ ( in @ SV755 @ SV649 )
          | ( in @ SV755 @ SV465 ) )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3288]) ).

thf(3327,plain,
    ! [SV465: $i,SV610: $i,SV649: $i,SV756: $i] :
      ( ( ( ~ ( in @ SV756 @ SV649 )
          | ~ ( in @ SV756 @ SV610 ) )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3289]) ).

thf(3328,plain,
    ! [SV743: $i,SV468: $i,SV675: $i] :
      ( ( ( in @ ( sK15_C @ SV675 @ SV468 ) @ SV675 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV743 @ ( sK15_C @ SV675 @ SV468 ) ) @ SV468 )
        = $false )
      | ( ( SV675
          = ( relation_rng @ SV468 ) )
        = $true )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3290]) ).

thf(3329,plain,
    ! [SV676: $i,SV468: $i,SV744: $i,SV757: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV757 @ SV744 ) @ SV468 ) )
        = $true )
      | ( ( in @ SV744 @ SV676 )
        = $true )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3291]) ).

thf(3330,plain,
    ! [SV468: $i,SV676: $i,SV745: $i] :
      ( ( ( in @ SV745 @ SV676 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK14_D @ SV745 @ SV676 @ SV468 ) @ SV745 ) @ SV468 )
        = $true )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3292]) ).

thf(3331,plain,
    ! [SV724: $i,SV569: $i,SV615: $i] :
      ( ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV615 )
        = $false )
      | ( ( in @ ( sK19_C @ SV615 @ SV569 ) @ SV724 )
        = $false )
      | ( ( in @ SV724 @ SV569 )
        = $false )
      | ( ( SV615
          = ( union @ SV569 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3293]) ).

thf(3332,plain,
    ! [SV616: $i,SV570: $i,SV746: $i,SV725: $i] :
      ( ( ( in @ SV725 @ SV746 )
        = $false )
      | ( ( ~ ( in @ SV746 @ SV570 ) )
        = $true )
      | ( ( in @ SV725 @ SV616 )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3294]) ).

thf(3333,plain,
    ! [SV570: $i,SV616: $i,SV726: $i] :
      ( ( ( ~ ( in @ SV726 @ ( sK18_D @ SV726 @ SV616 @ SV570 ) ) )
        = $false )
      | ( ( in @ SV726 @ SV616 )
        = $false )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3295]) ).

thf(3334,plain,
    ! [SV570: $i,SV616: $i,SV726: $i] :
      ( ( ( ~ ( in @ ( sK18_D @ SV726 @ SV616 @ SV570 ) @ SV570 ) )
        = $false )
      | ( ( in @ SV726 @ SV616 )
        = $false )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3295]) ).

thf(3335,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
        = $false )
      | ( ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3296]) ).

thf(3336,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
        = $false )
      | ( ( ~ ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 ) )
        = $true )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3297]) ).

thf(3337,plain,
    ! [SV652: $i,SV621: $i,SV470: $i,SV736: $i] :
      ( ( ( in @ SV736 @ SV470 )
        = $true )
      | ( ( in @ SV736 @ SV621 )
        = $true )
      | ( ( in @ SV736 @ SV652 )
        = $false )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3298]) ).

thf(3338,plain,
    ! [SV621: $i,SV652: $i,SV470: $i,SV758: $i] :
      ( ( ( ~ ( in @ SV758 @ SV470 )
          | ( in @ SV758 @ SV652 ) )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3299]) ).

thf(3339,plain,
    ! [SV470: $i,SV652: $i,SV621: $i,SV759: $i] :
      ( ( ( ~ ( in @ SV759 @ SV621 )
          | ( in @ SV759 @ SV652 ) )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3300]) ).

thf(3340,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
        = $false )
      | ( ( ( ( sK32_D @ SV653 @ SV629 @ SV472 )
           != SV472 ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3301]) ).

thf(3341,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
        = $false )
      | ( ( ( ( sK32_D @ SV653 @ SV629 @ SV472 )
           != SV629 ) )
        = $true )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3302]) ).

thf(3342,plain,
    ! [SV654: $i,SV630: $i,SV472: $i,SV737: $i] :
      ( ( ( SV737 = SV472 )
        = $true )
      | ( ( SV737 = SV630 )
        = $true )
      | ( ( in @ SV737 @ SV654 )
        = $false )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3303]) ).

thf(3343,plain,
    ! [SV630: $i,SV654: $i,SV472: $i,SV760: $i] :
      ( ( ( ( SV760 != SV472 )
          | ( in @ SV760 @ SV654 ) )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3304]) ).

thf(3344,plain,
    ! [SV472: $i,SV654: $i,SV630: $i,SV761: $i] :
      ( ( ( ( SV761 != SV630 )
          | ( in @ SV761 @ SV654 ) )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[3305]) ).

thf(3345,plain,
    ! [SV643: $i,SV599: $i,SV738: $i,SV458: $i,SV729: $i] :
      ( ( ( in @ SV729 @ SV458 )
        = $false )
      | ( ( ~ ( in @ SV738 @ SV599 ) )
        = $true )
      | ( ( ( ( sK28_D @ SV643 @ SV599 @ SV458 )
           != ( ordered_pair @ SV729 @ SV738 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3306]) ).

thf(3346,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ~ ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3307]) ).

thf(3347,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ~ ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 ) )
        = $false )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3307]) ).

thf(3348,plain,
    ! [SV644: $i,SV730: $i,SV600: $i,SV748: $i,SV458: $i,SV747: $i] :
      ( ( ( ~ ( in @ SV747 @ SV458 )
          | ~ ( in @ SV748 @ SV600 ) )
        = $true )
      | ( ( ( SV730
           != ( ordered_pair @ SV747 @ SV748 ) ) )
        = $true )
      | ( ( in @ SV730 @ SV644 )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3308]) ).

thf(3349,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV458 )
                | ~ ( in @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV600 ) ) )
        = $false )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3309]) ).

thf(3350,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( ( SV731
           != ( ordered_pair @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) ) ) )
        = $false )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3309]) ).

thf(3351,plain,
    ! [SV660: $i,SV459: $i,SV749: $i,SV740: $i] :
      ( ( ( in @ ( ordered_pair @ SV740 @ SV749 ) @ SV459 )
        = $false )
      | ( ( in @ SV740 @ SV660 )
        = $true )
      | ( ( SV660
          = ( relation_dom @ SV459 ) )
        = $false )
      | ( ( relation @ SV459 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3311]) ).

thf(3352,plain,
    ! [SV742: $i,SV460: $i,SV684: $i] :
      ( ( ( in @ SV684 @ ( sK10_B @ SV460 ) )
        = $false )
      | ( ( in @ SV742 @ ( sK11_SY302 @ SV684 @ SV460 ) )
        = $true )
      | ( ( subset @ SV742 @ SV684 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3313]) ).

thf(3353,plain,
    ! [SV460: $i,SV718: $i,SV732: $i] :
      ( ( ( subset @ SV732 @ SV718 )
        = $false )
      | ( ( in @ SV718 @ ( sK10_B @ SV460 ) )
        = $false )
      | ( ( in @ SV732 @ ( sK10_B @ SV460 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3314]) ).

thf(3354,plain,
    ! [SV462: $i,SV719: $i,SV733: $i] :
      ( ( ( subset @ SV733 @ SV719 )
        = $false )
      | ( ( in @ SV719 @ ( sK9_B @ SV462 ) )
        = $false )
      | ( ( in @ SV733 @ ( sK9_B @ SV462 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3315]) ).

thf(3355,plain,
    ! [SV647: $i,SV464: $i,SV604: $i,SV734: $i] :
      ( ( ( in @ SV734 @ SV604 )
        = $false )
      | ( ( in @ SV734 @ SV464 )
        = $false )
      | ( ( in @ SV734 @ SV647 )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3317]) ).

thf(3356,plain,
    ! [SV604: $i,SV464: $i,SV647: $i,SV750: $i] :
      ( ( ( ~ ( in @ SV750 @ SV647 ) )
        = $true )
      | ( ( in @ SV750 @ SV464 )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3318]) ).

thf(3357,plain,
    ! [SV464: $i,SV604: $i,SV647: $i,SV751: $i] :
      ( ( ( ~ ( in @ SV751 @ SV647 ) )
        = $true )
      | ( ( in @ SV751 @ SV604 )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3319]) ).

thf(3358,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 ) )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3320]) ).

thf(3359,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3320]) ).

thf(3360,plain,
    ! [SV702: $i,SV664: $i,SV752: $i] :
      ( ( ( ~ ( in @ SV752 @ SV664 ) )
        = $true )
      | ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV752 )
        = $true )
      | ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3321]) ).

thf(3361,plain,
    ! [SV665: $i,SV703: $i,SV753: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK36_D @ SV753 @ SV703 @ SV665 ) @ SV665 )
              | ~ ~ ( in @ SV753 @ ( sK36_D @ SV753 @ SV703 @ SV665 ) ) ) )
        = $true )
      | ( ( in @ SV753 @ SV703 )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3322]) ).

thf(3362,plain,
    ! [SV665: $i,SV703: $i,SV754: $i] :
      ( ( ( ~ ( in @ SV754 @ SV703 ) )
        = $true )
      | ( ( ! [SY1058: $i] :
              ( ~ ( in @ SY1058 @ SV665 )
              | ( in @ SV754 @ SY1058 ) ) )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3323]) ).

thf(3363,plain,
    ! [SV610: $i,SV465: $i,SV649: $i,SV755: $i] :
      ( ( ( ~ ( in @ SV755 @ SV649 ) )
        = $true )
      | ( ( in @ SV755 @ SV465 )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3326]) ).

thf(3364,plain,
    ! [SV465: $i,SV610: $i,SV649: $i,SV756: $i] :
      ( ( ( ~ ( in @ SV756 @ SV649 ) )
        = $true )
      | ( ( ~ ( in @ SV756 @ SV610 ) )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3327]) ).

thf(3365,plain,
    ! [SV676: $i,SV468: $i,SV744: $i,SV757: $i] :
      ( ( ( in @ ( ordered_pair @ SV757 @ SV744 ) @ SV468 )
        = $false )
      | ( ( in @ SV744 @ SV676 )
        = $true )
      | ( ( SV676
          = ( relation_rng @ SV468 ) )
        = $false )
      | ( ( relation @ SV468 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3329]) ).

thf(3366,plain,
    ! [SV616: $i,SV725: $i,SV570: $i,SV746: $i] :
      ( ( ( in @ SV746 @ SV570 )
        = $false )
      | ( ( in @ SV725 @ SV746 )
        = $false )
      | ( ( in @ SV725 @ SV616 )
        = $true )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3332]) ).

thf(3367,plain,
    ! [SV570: $i,SV616: $i,SV726: $i] :
      ( ( ( in @ SV726 @ ( sK18_D @ SV726 @ SV616 @ SV570 ) )
        = $true )
      | ( ( in @ SV726 @ SV616 )
        = $false )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3333]) ).

thf(3368,plain,
    ! [SV570: $i,SV616: $i,SV726: $i] :
      ( ( ( in @ ( sK18_D @ SV726 @ SV616 @ SV570 ) @ SV570 )
        = $true )
      | ( ( in @ SV726 @ SV616 )
        = $false )
      | ( ( SV616
          = ( union @ SV570 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3334]) ).

thf(3369,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV470 )
        = $false )
      | ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
        = $false )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3335]) ).

thf(3370,plain,
    ! [SV470: $i,SV620: $i,SV651: $i] :
      ( ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV620 )
        = $false )
      | ( ( in @ ( sK31_D @ SV651 @ SV620 @ SV470 ) @ SV651 )
        = $false )
      | ( ( SV651
          = ( set_union2 @ SV470 @ SV620 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3336]) ).

thf(3371,plain,
    ! [SV621: $i,SV652: $i,SV470: $i,SV758: $i] :
      ( ( ( ~ ( in @ SV758 @ SV470 ) )
        = $true )
      | ( ( in @ SV758 @ SV652 )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3338]) ).

thf(3372,plain,
    ! [SV470: $i,SV652: $i,SV621: $i,SV759: $i] :
      ( ( ( ~ ( in @ SV759 @ SV621 ) )
        = $true )
      | ( ( in @ SV759 @ SV652 )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3339]) ).

thf(3373,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ( sK32_D @ SV653 @ SV629 @ SV472 )
          = SV472 )
        = $false )
      | ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
        = $false )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3340]) ).

thf(3374,plain,
    ! [SV472: $i,SV629: $i,SV653: $i] :
      ( ( ( ( sK32_D @ SV653 @ SV629 @ SV472 )
          = SV629 )
        = $false )
      | ( ( in @ ( sK32_D @ SV653 @ SV629 @ SV472 ) @ SV653 )
        = $false )
      | ( ( SV653
          = ( unordered_pair @ SV472 @ SV629 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3341]) ).

thf(3375,plain,
    ! [SV630: $i,SV654: $i,SV472: $i,SV760: $i] :
      ( ( ( ( SV760 != SV472 ) )
        = $true )
      | ( ( in @ SV760 @ SV654 )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3343]) ).

thf(3376,plain,
    ! [SV472: $i,SV654: $i,SV630: $i,SV761: $i] :
      ( ( ( ( SV761 != SV630 ) )
        = $true )
      | ( ( in @ SV761 @ SV654 )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3344]) ).

thf(3377,plain,
    ! [SV643: $i,SV458: $i,SV729: $i,SV599: $i,SV738: $i] :
      ( ( ( in @ SV738 @ SV599 )
        = $false )
      | ( ( in @ SV729 @ SV458 )
        = $false )
      | ( ( ( ( sK28_D @ SV643 @ SV599 @ SV458 )
           != ( ordered_pair @ SV729 @ SV738 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3345]) ).

thf(3378,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( in @ ( sK29_SY316 @ SV643 @ SV599 @ SV458 ) @ SV458 )
        = $true )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3346]) ).

thf(3379,plain,
    ! [SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( in @ ( sK30_SY318 @ SV643 @ SV599 @ SV458 ) @ SV599 )
        = $true )
      | ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3347]) ).

thf(3380,plain,
    ! [SV644: $i,SV730: $i,SV600: $i,SV748: $i,SV458: $i,SV747: $i] :
      ( ( ( ~ ( in @ SV747 @ SV458 ) )
        = $true )
      | ( ( ~ ( in @ SV748 @ SV600 ) )
        = $true )
      | ( ( ( SV730
           != ( ordered_pair @ SV747 @ SV748 ) ) )
        = $true )
      | ( ( in @ SV730 @ SV644 )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[3348]) ).

thf(3381,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV458 )
              | ~ ( in @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV600 ) ) )
        = $true )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3349]) ).

thf(3382,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( SV731
          = ( ordered_pair @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) ) )
        = $true )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3350]) ).

thf(3383,plain,
    ! [SV604: $i,SV464: $i,SV647: $i,SV750: $i] :
      ( ( ( in @ SV750 @ SV647 )
        = $false )
      | ( ( in @ SV750 @ SV464 )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3356]) ).

thf(3384,plain,
    ! [SV464: $i,SV604: $i,SV647: $i,SV751: $i] :
      ( ( ( in @ SV751 @ SV647 )
        = $false )
      | ( ( in @ SV751 @ SV604 )
        = $true )
      | ( ( SV647
          = ( set_intersection2 @ SV464 @ SV604 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3357]) ).

thf(3385,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3358]) ).

thf(3386,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3359]) ).

thf(3387,plain,
    ! [SV702: $i,SV664: $i,SV752: $i] :
      ( ( ( in @ SV752 @ SV664 )
        = $false )
      | ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV752 )
        = $true )
      | ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3360]) ).

thf(3388,plain,
    ! [SV665: $i,SV703: $i,SV753: $i] :
      ( ( ( ~ ( in @ ( sK36_D @ SV753 @ SV703 @ SV665 ) @ SV665 )
          | ~ ~ ( in @ SV753 @ ( sK36_D @ SV753 @ SV703 @ SV665 ) ) )
        = $false )
      | ( ( in @ SV753 @ SV703 )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3361]) ).

thf(3389,plain,
    ! [SV665: $i,SV703: $i,SV754: $i] :
      ( ( ( in @ SV754 @ SV703 )
        = $false )
      | ( ( ! [SY1058: $i] :
              ( ~ ( in @ SY1058 @ SV665 )
              | ( in @ SV754 @ SY1058 ) ) )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3362]) ).

thf(3390,plain,
    ! [SV610: $i,SV465: $i,SV649: $i,SV755: $i] :
      ( ( ( in @ SV755 @ SV649 )
        = $false )
      | ( ( in @ SV755 @ SV465 )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3363]) ).

thf(3391,plain,
    ! [SV465: $i,SV610: $i,SV649: $i,SV756: $i] :
      ( ( ( in @ SV756 @ SV649 )
        = $false )
      | ( ( ~ ( in @ SV756 @ SV610 ) )
        = $true )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3364]) ).

thf(3392,plain,
    ! [SV621: $i,SV652: $i,SV470: $i,SV758: $i] :
      ( ( ( in @ SV758 @ SV470 )
        = $false )
      | ( ( in @ SV758 @ SV652 )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3371]) ).

thf(3393,plain,
    ! [SV470: $i,SV652: $i,SV621: $i,SV759: $i] :
      ( ( ( in @ SV759 @ SV621 )
        = $false )
      | ( ( in @ SV759 @ SV652 )
        = $true )
      | ( ( SV652
          = ( set_union2 @ SV470 @ SV621 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3372]) ).

thf(3394,plain,
    ! [SV630: $i,SV654: $i,SV472: $i,SV760: $i] :
      ( ( ( SV760 = SV472 )
        = $false )
      | ( ( in @ SV760 @ SV654 )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3375]) ).

thf(3395,plain,
    ! [SV472: $i,SV654: $i,SV630: $i,SV761: $i] :
      ( ( ( SV761 = SV630 )
        = $false )
      | ( ( in @ SV761 @ SV654 )
        = $true )
      | ( ( SV654
          = ( unordered_pair @ SV472 @ SV630 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3376]) ).

thf(3396,plain,
    ! [SV738: $i,SV729: $i,SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( ( sK28_D @ SV643 @ SV599 @ SV458 )
          = ( ordered_pair @ SV729 @ SV738 ) )
        = $false )
      | ( ( in @ SV729 @ SV458 )
        = $false )
      | ( ( in @ SV738 @ SV599 )
        = $false )
      | ( ( ~ ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 ) )
        = $true )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3377]) ).

thf(3397,plain,
    ! [SV644: $i,SV730: $i,SV600: $i,SV748: $i,SV458: $i,SV747: $i] :
      ( ( ( in @ SV747 @ SV458 )
        = $false )
      | ( ( ~ ( in @ SV748 @ SV600 ) )
        = $true )
      | ( ( ( SV730
           != ( ordered_pair @ SV747 @ SV748 ) ) )
        = $true )
      | ( ( in @ SV730 @ SV644 )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3380]) ).

thf(3398,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( ~ ( in @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV458 )
          | ~ ( in @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
        = $false )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3381]) ).

thf(3399,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 )
        = $false )
      | ( ( in @ ( sK38_SY319 @ SV702 @ SV664 ) @ SV664 )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3385]) ).

thf(3400,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) )
        = $false )
      | ( ( ~ ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 ) )
        = $true )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3386]) ).

thf(3401,plain,
    ! [SV665: $i,SV703: $i,SV753: $i] :
      ( ( ( ~ ( in @ ( sK36_D @ SV753 @ SV703 @ SV665 ) @ SV665 ) )
        = $false )
      | ( ( in @ SV753 @ SV703 )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3388]) ).

thf(3402,plain,
    ! [SV665: $i,SV703: $i,SV753: $i] :
      ( ( ( ~ ~ ( in @ SV753 @ ( sK36_D @ SV753 @ SV703 @ SV665 ) ) )
        = $false )
      | ( ( in @ SV753 @ SV703 )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[3388]) ).

thf(3403,plain,
    ! [SV703: $i,SV754: $i,SV665: $i,SV762: $i] :
      ( ( ( ~ ( in @ SV762 @ SV665 )
          | ( in @ SV754 @ SV762 ) )
        = $true )
      | ( ( in @ SV754 @ SV703 )
        = $false )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[3389]) ).

thf(3404,plain,
    ! [SV465: $i,SV649: $i,SV610: $i,SV756: $i] :
      ( ( ( in @ SV756 @ SV610 )
        = $false )
      | ( ( in @ SV756 @ SV649 )
        = $false )
      | ( ( SV649
          = ( set_difference @ SV465 @ SV610 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3391]) ).

thf(3405,plain,
    ! [SV729: $i,SV738: $i,SV458: $i,SV599: $i,SV643: $i] :
      ( ( ( in @ ( sK28_D @ SV643 @ SV599 @ SV458 ) @ SV643 )
        = $false )
      | ( ( in @ SV738 @ SV599 )
        = $false )
      | ( ( in @ SV729 @ SV458 )
        = $false )
      | ( ( ( sK28_D @ SV643 @ SV599 @ SV458 )
          = ( ordered_pair @ SV729 @ SV738 ) )
        = $false )
      | ( ( SV643
          = ( cartesian_product2 @ SV458 @ SV599 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3396]) ).

thf(3406,plain,
    ! [SV644: $i,SV730: $i,SV458: $i,SV747: $i,SV600: $i,SV748: $i] :
      ( ( ( in @ SV748 @ SV600 )
        = $false )
      | ( ( in @ SV747 @ SV458 )
        = $false )
      | ( ( ( SV730
           != ( ordered_pair @ SV747 @ SV748 ) ) )
        = $true )
      | ( ( in @ SV730 @ SV644 )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3397]) ).

thf(3407,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( ~ ( in @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV458 ) )
        = $false )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3398]) ).

thf(3408,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( ~ ( in @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV600 ) )
        = $false )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[3398]) ).

thf(3409,plain,
    ! [SV664: $i,SV702: $i] :
      ( ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ SV702 )
        = $false )
      | ( ( in @ ( sK37_C @ SV702 @ SV664 ) @ ( sK38_SY319 @ SV702 @ SV664 ) )
        = $false )
      | ( ( SV702
          = ( set_meet @ SV664 ) )
        = $true )
      | ( ( SV664 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3400]) ).

thf(3410,plain,
    ! [SV665: $i,SV703: $i,SV753: $i] :
      ( ( ( in @ ( sK36_D @ SV753 @ SV703 @ SV665 ) @ SV665 )
        = $true )
      | ( ( in @ SV753 @ SV703 )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3401]) ).

thf(3411,plain,
    ! [SV665: $i,SV703: $i,SV753: $i] :
      ( ( ( ~ ( in @ SV753 @ ( sK36_D @ SV753 @ SV703 @ SV665 ) ) )
        = $true )
      | ( ( in @ SV753 @ SV703 )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[3402]) ).

thf(3412,plain,
    ! [SV703: $i,SV754: $i,SV665: $i,SV762: $i] :
      ( ( ( ~ ( in @ SV762 @ SV665 ) )
        = $true )
      | ( ( in @ SV754 @ SV762 )
        = $true )
      | ( ( in @ SV754 @ SV703 )
        = $false )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[3403]) ).

thf(3413,plain,
    ! [SV644: $i,SV600: $i,SV458: $i,SV748: $i,SV747: $i,SV730: $i] :
      ( ( ( SV730
          = ( ordered_pair @ SV747 @ SV748 ) )
        = $false )
      | ( ( in @ SV747 @ SV458 )
        = $false )
      | ( ( in @ SV748 @ SV600 )
        = $false )
      | ( ( in @ SV730 @ SV644 )
        = $true )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[3406]) ).

thf(3414,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( in @ ( sK26_E @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV458 )
        = $true )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3407]) ).

thf(3415,plain,
    ! [SV458: $i,SV600: $i,SV644: $i,SV731: $i] :
      ( ( ( in @ ( sK27_SY313 @ SV731 @ SV644 @ SV600 @ SV458 ) @ SV600 )
        = $true )
      | ( ( in @ SV731 @ SV644 )
        = $false )
      | ( ( SV644
          = ( cartesian_product2 @ SV458 @ SV600 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[3408]) ).

thf(3416,plain,
    ! [SV665: $i,SV703: $i,SV753: $i] :
      ( ( ( in @ SV753 @ ( sK36_D @ SV753 @ SV703 @ SV665 ) )
        = $false )
      | ( ( in @ SV753 @ SV703 )
        = $true )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3411]) ).

thf(3417,plain,
    ! [SV703: $i,SV754: $i,SV665: $i,SV762: $i] :
      ( ( ( in @ SV762 @ SV665 )
        = $false )
      | ( ( in @ SV754 @ SV762 )
        = $true )
      | ( ( in @ SV754 @ SV703 )
        = $false )
      | ( ( SV703
          = ( set_meet @ SV665 ) )
        = $false )
      | ( ( SV665 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[3412]) ).

thf(3418,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[1949,3417,3416,3415,3414,3413,3410,3409,3405,3404,3399,3395,3394,3393,3392,3390,3387,3384,3383,3382,3379,3378,3374,3373,3370,3369,3368,3367,3366,3365,3355,3354,3353,3352,3351,3342,3337,3331,3330,3328,3325,3324,3316,3312,3310,3285,3284,3276,3275,3265,3262,3261,3248,3247,3245,3244,3222,3210,3207,3204,3203,3200,3190,3187,3185,3184,3178,3177,3176,3175,3166,3165,3158,3152,3151,3147,3123,3118,3115,3114,3103,3088,3085,3083,3082,3076,3075,3068,3067,3060,3048,3038,3037,3029,3027,3026,3016,3012,3011,3004,3002,3001,2995,2942,2941,2916,2913,2906,2903,2902,2894,2883,2875,2872,2866,2865,2863,2862,2857,2856,2847,2846,2843,2842,2841,2840,2834,2833,2809,2808,2788,2779,2778,2776,2775,2774,2773,2770,2769,2767,2766,2765,2757,2731,2689,2680,2677,2669,2664,2654,2619,2572,2571,2568,2564,2563,2557,2555,2554,2552,2519,2518,2474,2472,2471,2470,2469,2468,2467,2466,2464,2463,2462,2461,2457,2451,2449,2445,2438,2436,2435,2434,2431,2430,2429,2356,2347,2329,2315,2309,2231,2230,2223,2222,2221,2217,2211,2208,2206,2205,2199,2194,2188,2138,2134,2133,2132,2131,2129,2125,2122,2121,2115,2109,2103,2098,2085,2018,2017,2001,1991]) ).

thf(3419,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[3418,1895]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.11  % Problem  : SEU177+2 : TPTP v8.1.0. Released v3.3.0.
% 0.10/0.12  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.12/0.33  % Computer : n012.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Mon Jun 20 14:15:37 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.39  ...
% 0.19/0.43  
% 0.19/0.43   No.of.Axioms: 141
% 0.19/0.43  
% 0.19/0.43   Length.of.Defs: 0
% 0.19/0.43  
% 0.19/0.43   Contains.Choice.Funs: false
% 0.19/0.48  .........
% 0.19/0.51  (rf:2,axioms:121,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:143,loop_count:0,foatp_calls:0,translation:fof_full)...................................................................................................................................................................................................................................
% 13.02/13.20  
% 13.02/13.20  ********************************
% 13.02/13.20  *   All subproblems solved!    *
% 13.02/13.20  ********************************
% 13.02/13.20  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:2,axioms:123,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:67,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:3418,loop_count:0,foatp_calls:1,translation:fof_full)
% 16.01/16.20  
% 16.01/16.20  %**** Beginning of derivation protocol ****
% 16.01/16.20  % SZS output start CNFRefutation
% See solution above
% 16.03/16.21  
% 16.03/16.21  %**** End of derivation protocol ****
% 16.03/16.21  %**** no. of clauses in derivation: 3399 ****
% 16.03/16.21  %**** clause counter: 3418 ****
% 16.03/16.21  
% 16.03/16.21  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:2,axioms:123,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:67,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:3418,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------