TSTP Solution File: SEU180+2 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SEU180+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 : n019.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 12:07:42 EDT 2022

% Result   : Theorem 231.00s 231.33s
% Output   : CNFRefutation 232.87s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   26
%            Number of leaves      :  122
% Syntax   : Number of formulae    : 2543 (1001 unt;  68 typ;   0 def)
%            Number of atoms       : 20827 (7339 equ;   0 cnn)
%            Maximal formula atoms :   11 (   8 avg)
%            Number of connectives : 49358 (8884   ~;8155   |; 359   &;31786   @)
%                                         (  74 <=>; 100  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   16 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :  129 ( 129   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   71 (  68 usr;   7 con; 0-4 aty)
%            Number of variables   : 8562 (   0   ^8542   !;  20   ?;8562   :)

% 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_field,type,
    relation_field: $i > $i ).

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

thf(tp_sK10_C,type,
    sK10_C: $i > $i > $i ).

thf(tp_sK11_SY2046,type,
    sK11_SY2046: $i > $i > $i ).

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

thf(tp_sK13_D,type,
    sK13_D: $i > $i > $i > $i ).

thf(tp_sK14_C,type,
    sK14_C: $i > $i > $i ).

thf(tp_sK15_SY2048,type,
    sK15_SY2048: $i > $i > $i ).

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

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

thf(tp_sK18_SY2050,type,
    sK18_SY2050: $i > $i > $i ).

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

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

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

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

thf(tp_sK22_SY2051,type,
    sK22_SY2051: $i > $i > $i > $i > $i ).

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

thf(tp_sK24_SY2054,type,
    sK24_SY2054: $i > $i > $i > $i ).

thf(tp_sK25_SY2056,type,
    sK25_SY2056: $i > $i > $i > $i ).

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

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

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

thf(tp_sK29_B,type,
    sK29_B: $i > $i ).

thf(tp_sK2_SY2035,type,
    sK2_SY2035: $i ).

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

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

thf(tp_sK32_C,type,
    sK32_C: $i > $i > $i ).

thf(tp_sK33_SY2057,type,
    sK33_SY2057: $i > $i > $i ).

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

thf(tp_sK35_SY2059,type,
    sK35_SY2059: $i > $i > $i ).

thf(tp_sK36_B,type,
    sK36_B: $i > $i ).

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

thf(tp_sK38_C,type,
    sK38_C: $i > $i > $i ).

thf(tp_sK39_B,type,
    sK39_B: $i > $i ).

thf(tp_sK3_SY2037,type,
    sK3_SY2037: $i ).

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

thf(tp_sK4_B,type,
    sK4_B: $i > $i ).

thf(tp_sK5_SY2040,type,
    sK5_SY2040: $i > $i > $i ).

thf(tp_sK6_C,type,
    sK6_C: $i > $i > $i ).

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

thf(tp_sK8_D,type,
    sK8_D: $i > $i > $i > $i ).

thf(tp_sK9_D,type,
    sK9_D: $i > $i > $i > $i ).

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

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

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

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

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

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

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

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

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

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

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

thf(1,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ( in @ A @ B )
      & ! [C: $i,D: $i] :
          ( ( ( in @ C @ B )
            & ( subset @ D @ C ) )
         => ( in @ D @ B ) )
      & ! [C: $i] :
          ~ ( ( in @ C @ B )
            & ! [D: $i] :
                ~ ( ( in @ D @ B )
                  & ! [E: $i] :
                      ( ( subset @ E @ C )
                     => ( in @ E @ D ) ) ) )
      & ! [C: $i] :
          ~ ( ( subset @ C @ B )
            & ~ ( are_equipotent @ C @ B )
            & ~ ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t9_tarski) ).

thf(3,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( in @ A @ B )
        & ( empty @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t7_boole) ).

thf(5,axiom,
    ! [A: $i,B: $i,C: $i] :
      ~ ( ( in @ A @ B )
        & ( element @ B @ ( powerset @ C ) )
        & ( empty @ C ) ),
    file('/export/starexec/sandbox2/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/sandbox2/benchmark/theBenchmark.p',t4_subset) ).

thf(10,axiom,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( in @ C @ A )
        <=> ( in @ C @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t2_tarski) ).

thf(11,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ A @ B )
     => ( ( empty @ B )
        | ( in @ A @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t2_subset) ).

thf(13,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( element @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t1_subset) ).

thf(24,axiom,
    ? [A: $i] :
      ( ( empty @ A )
      & ( relation @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rc1_relat_1) ).

thf(35,axiom,
    ! [A: $i,B: $i] :
      ( ( ( relation @ A )
        & ( relation @ B ) )
     => ( relation @ ( set_union2 @ A @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc2_relat_1) ).

thf(36,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( ordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

thf(62,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
     => ! [C: $i] :
          ( ( element @ C @ ( powerset @ ( powerset @ A ) ) )
         => ( ( C
              = ( complements_of_subsets @ A @ B ) )
          <=> ! [D: $i] :
                ( ( element @ D @ ( powerset @ A ) )
               => ( ( in @ D @ C )
                <=> ( in @ ( subset_complement @ A @ D ) @ B ) ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d8_setfam_1) ).

thf(64,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( ( relation_field @ A )
        = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d6_relat_1) ).

thf(65,axiom,
    ! [A: $i,B: $i] :
      ( ( ordered_pair @ A @ B )
      = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d5_tarski) ).

thf(67,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/sandbox2/benchmark/theBenchmark.p',d5_relat_1) ).

thf(68,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/sandbox2/benchmark/theBenchmark.p',d4_xboole_0) ).

thf(69,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( union @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ? [D: $i] :
              ( ( in @ C @ D )
              & ( in @ D @ A ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d4_tarski) ).

thf(71,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/sandbox2/benchmark/theBenchmark.p',d4_relat_1) ).

thf(72,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/sandbox2/benchmark/theBenchmark.p',d3_xboole_0) ).

thf(73,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d3_tarski) ).

thf(74,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/sandbox2/benchmark/theBenchmark.p',d2_zfmisc_1) ).

thf(75,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/sandbox2/benchmark/theBenchmark.p',d2_xboole_0) ).

thf(76,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( unordered_pair @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( D = A )
            | ( D = B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_tarski) ).

thf(77,axiom,
    ! [A: $i,B: $i] :
      ( ( ~ ( empty @ A )
       => ( ( element @ B @ A )
        <=> ( in @ B @ A ) ) )
      & ( ( empty @ A )
       => ( ( element @ B @ A )
        <=> ( empty @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_subset_1) ).

thf(78,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( powerset @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( subset @ C @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_zfmisc_1) ).

thf(79,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(80,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( singleton @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( C = A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_tarski) ).

thf(81,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/sandbox2/benchmark/theBenchmark.p',d1_setfam_1) ).

thf(82,axiom,
    ! [A: $i] :
      ( ( relation @ A )
    <=> ! [B: $i] :
          ~ ( ( in @ B @ A )
            & ! [C: $i,D: $i] :
                ( B
               != ( ordered_pair @ C @ D ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_relat_1) ).

thf(88,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(91,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t92_zfmisc_1) ).

thf(98,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ ( singleton @ B ) )
        = A )
    <=> ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t65_zfmisc_1) ).

thf(101,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( element @ C @ ( powerset @ A ) )
     => ~ ( ( in @ B @ ( subset_complement @ A @ C ) )
          & ( in @ B @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t54_subset_1) ).

thf(102,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/sandbox2/benchmark/theBenchmark.p',t50_subset_1) ).

thf(103,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/sandbox2/benchmark/theBenchmark.p',t4_xboole_0) ).

thf(107,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( ( set_union2 @ ( singleton @ A ) @ B )
        = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t46_zfmisc_1) ).

thf(113,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/sandbox2/benchmark/theBenchmark.p',t3_xboole_0) ).

thf(116,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ ( unordered_pair @ A @ B ) @ C )
    <=> ( ( in @ A @ C )
        & ( in @ B @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t38_zfmisc_1) ).

thf(117,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t37_zfmisc_1) ).

thf(120,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( ordered_pair @ A @ B )
        = ( ordered_pair @ C @ D ) )
     => ( ( A = C )
        & ( B = D ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t33_zfmisc_1) ).

thf(125,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( relation @ B )
         => ( ( subset @ A @ B )
           => ( ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) )
              & ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t25_relat_1) ).

thf(126,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t21_relat_1) ).

thf(127,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation @ C )
     => ( ( in @ ( ordered_pair @ A @ B ) @ C )
       => ( ( in @ A @ ( relation_dom @ C ) )
          & ( in @ B @ ( relation_rng @ C ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t20_relat_1) ).

thf(132,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/sandbox2/benchmark/theBenchmark.p',t136_zfmisc_1) ).

thf(137,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/sandbox2/benchmark/theBenchmark.p',t106_zfmisc_1) ).

thf(138,axiom,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) )
     => ( element @ A @ ( powerset @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l71_subset_1) ).

thf(139,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/sandbox2/benchmark/theBenchmark.p',l55_zfmisc_1) ).

thf(140,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l50_zfmisc_1) ).

thf(142,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( ( in @ C @ A )
        | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l3_zfmisc_1) ).

thf(143,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ! [C: $i] :
          ( ( in @ C @ B )
         => ( in @ C @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l3_subset_1) ).

thf(145,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(146,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( in @ A @ B )
     => ( disjoint @ ( singleton @ A ) @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l28_zfmisc_1) ).

thf(147,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( disjoint @ ( singleton @ A ) @ B )
        & ( in @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l25_zfmisc_1) ).

thf(148,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( ( set_union2 @ ( singleton @ A ) @ B )
        = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l23_zfmisc_1) ).

thf(150,conjecture,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation @ C )
     => ( ( in @ ( ordered_pair @ A @ B ) @ C )
       => ( ( in @ A @ ( relation_field @ C ) )
          & ( in @ B @ ( relation_field @ C ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t30_relat_1) ).

thf(151,negated_conjecture,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( ( in @ ( ordered_pair @ A @ B ) @ C )
           => ( ( in @ A @ ( relation_field @ C ) )
              & ( in @ B @ ( relation_field @ C ) ) ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[150]) ).

thf(152,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( ( in @ ( ordered_pair @ A @ B ) @ C )
           => ( ( in @ A @ ( relation_field @ C ) )
              & ( in @ B @ ( relation_field @ C ) ) ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[151]) ).

thf(153,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(154,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(155,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ~ ( ( in @ A @ B )
            & ( element @ B @ ( powerset @ C ) )
            & ( empty @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(156,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(157,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(158,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ A @ B )
         => ( ( empty @ B )
            | ( in @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(159,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(160,plain,
    ( ( ? [A: $i] :
          ( ( empty @ A )
          & ( relation @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[24]) ).

thf(161,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( relation @ A )
            & ( relation @ B ) )
         => ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(162,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(163,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ ( powerset @ A ) ) )
         => ! [C: $i] :
              ( ( element @ C @ ( powerset @ ( powerset @ A ) ) )
             => ( ( C
                  = ( complements_of_subsets @ A @ B ) )
              <=> ! [D: $i] :
                    ( ( element @ D @ ( powerset @ A ) )
                   => ( ( in @ D @ C )
                    <=> ( in @ ( subset_complement @ A @ D ) @ B ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(164,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[64]) ).

thf(165,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[65]) ).

thf(166,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)],[67]) ).

thf(167,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)],[68]) ).

thf(168,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)],[69]) ).

thf(169,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)],[71]) ).

thf(170,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)],[72]) ).

thf(171,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(172,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)],[74]) ).

thf(173,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)],[75]) ).

thf(174,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)],[76]) ).

thf(175,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)],[77]) ).

thf(176,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[78]) ).

thf(177,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[79]) ).

thf(178,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(179,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)],[81]) ).

thf(180,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
        <=> ! [B: $i] :
              ~ ( ( in @ B @ A )
                & ! [C: $i,D: $i] :
                    ( B
                   != ( ordered_pair @ C @ D ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[82]) ).

thf(181,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[88]) ).

thf(182,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[91]) ).

thf(183,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
            = A )
        <=> ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[98]) ).

thf(184,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)],[101]) ).

thf(185,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)],[102]) ).

thf(186,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)],[103]) ).

thf(187,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[107]) ).

thf(188,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)],[113]) ).

thf(189,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)],[116]) ).

thf(190,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[117]) ).

thf(191,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)],[120]) ).

thf(192,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( relation @ B )
             => ( ( subset @ A @ B )
               => ( ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) )
                  & ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[125]) ).

thf(193,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[126]) ).

thf(194,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( ( in @ ( ordered_pair @ A @ B ) @ C )
           => ( ( in @ A @ ( relation_dom @ C ) )
              & ( in @ B @ ( relation_rng @ C ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[127]) ).

thf(195,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)],[132]) ).

thf(196,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)],[137]) ).

thf(197,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) )
         => ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[138]) ).

thf(198,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)],[139]) ).

thf(199,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[140]) ).

thf(200,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)],[142]) ).

thf(201,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ! [C: $i] :
              ( ( in @ C @ B )
             => ( in @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[143]) ).

thf(202,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[145]) ).

thf(203,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[146]) ).

thf(204,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( disjoint @ ( singleton @ A ) @ B )
            & ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[147]) ).

thf(205,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[148]) ).

thf(206,plain,
    ( ( ! [SY2035: $i,SY2036: $i] :
          ( ( relation @ SY2036 )
         => ( ( in @ ( ordered_pair @ sK1_A @ SY2035 ) @ SY2036 )
           => ( ( in @ sK1_A @ ( relation_field @ SY2036 ) )
              & ( in @ SY2035 @ ( relation_field @ SY2036 ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[152]) ).

thf(207,plain,
    ( ( ! [SY2037: $i] :
          ( ( relation @ SY2037 )
         => ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY2035 ) @ SY2037 )
           => ( ( in @ sK1_A @ ( relation_field @ SY2037 ) )
              & ( in @ sK2_SY2035 @ ( relation_field @ SY2037 ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[206]) ).

thf(208,plain,
    ( ( ( relation @ sK3_SY2037 )
     => ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY2035 ) @ sK3_SY2037 )
       => ( ( in @ sK1_A @ ( relation_field @ sK3_SY2037 ) )
          & ( in @ sK2_SY2035 @ ( relation_field @ sK3_SY2037 ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[207]) ).

thf(209,plain,
    ( ( relation @ sK3_SY2037 )
    = $true ),
    inference(standard_cnf,[status(thm)],[208]) ).

thf(210,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY2035 ) @ sK3_SY2037 )
    = $true ),
    inference(standard_cnf,[status(thm)],[208]) ).

thf(211,plain,
    ( ( ( in @ sK1_A @ ( relation_field @ sK3_SY2037 ) )
      & ( in @ sK2_SY2035 @ ( relation_field @ sK3_SY2037 ) ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[208]) ).

thf(212,plain,
    ( ( in @ sK1_A @ ( relation_field @ sK3_SY2037 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[211]) ).

thf(213,plain,
    ( ( in @ sK2_SY2035 @ ( relation_field @ sK3_SY2037 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[211]) ).

thf(214,plain,
    ( ( ~ ( in @ sK1_A @ ( relation_field @ sK3_SY2037 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[212]) ).

thf(215,plain,
    ( ( ~ ( in @ sK2_SY2035 @ ( relation_field @ sK3_SY2037 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[213]) ).

thf(216,plain,
    ( ( ! [A: $i] :
          ( ! [SY2038: $i] :
              ( ~ ( subset @ SY2038 @ ( sK4_B @ A ) )
              | ( are_equipotent @ SY2038 @ ( sK4_B @ A ) )
              | ( in @ SY2038 @ ( sK4_B @ A ) ) )
          & ! [SY2039: $i] :
              ( ( ! [SY2044: $i] :
                    ( ~ ( subset @ SY2044 @ SY2039 )
                    | ( in @ SY2044 @ ( sK5_SY2040 @ SY2039 @ A ) ) )
                & ( in @ ( sK5_SY2040 @ SY2039 @ A ) @ ( sK4_B @ A ) ) )
              | ~ ( in @ SY2039 @ ( sK4_B @ A ) ) )
          & ! [SY2042: $i,SY2043: $i] :
              ( ~ ( in @ SY2042 @ ( sK4_B @ A ) )
              | ~ ( subset @ SY2043 @ SY2042 )
              | ( in @ SY2043 @ ( sK4_B @ A ) ) )
          & ( in @ A @ ( sK4_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[153]) ).

thf(217,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[154]) ).

thf(218,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[155]) ).

thf(219,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[156]) ).

thf(220,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK6_C @ B @ A ) @ A )
              | ~ ( in @ ( sK6_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK6_C @ B @ A ) @ A )
              | ( in @ ( sK6_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[157]) ).

thf(221,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[158]) ).

thf(222,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[159]) ).

thf(223,plain,
    ( ( ( empty @ sK7_A )
      & ( relation @ sK7_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[160]) ).

thf(224,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[161]) ).

thf(225,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ ( powerset @ A ) ) )
                | ( ( element @ ( sK8_D @ C @ B @ A ) @ ( powerset @ A ) )
                  & ( ~ ( in @ ( sK8_D @ C @ B @ A ) @ C )
                    | ~ ( in @ ( subset_complement @ A @ ( sK8_D @ C @ B @ A ) ) @ B ) )
                  & ( ( in @ ( sK8_D @ C @ B @ A ) @ C )
                    | ( in @ ( subset_complement @ A @ ( sK8_D @ C @ B @ A ) ) @ B ) ) )
                | ( C
                  = ( complements_of_subsets @ A @ B ) ) )
            & ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ ( powerset @ A ) ) )
                | ( C
                 != ( complements_of_subsets @ A @ B ) )
                | ( ! [D: $i] :
                      ( ~ ( element @ D @ ( powerset @ A ) )
                      | ~ ( in @ D @ C )
                      | ( in @ ( subset_complement @ A @ D ) @ B ) )
                  & ! [D: $i] :
                      ( ~ ( element @ D @ ( powerset @ A ) )
                      | ~ ( in @ ( subset_complement @ A @ D ) @ B )
                      | ( in @ D @ C ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[163]) ).

thf(226,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[164]) ).

thf(227,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY2045: $i] :
                        ~ ( in @ ( ordered_pair @ SY2045 @ ( sK10_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK10_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ B @ A ) @ ( sK10_C @ B @ A ) ) @ A )
                    | ( in @ ( sK10_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 @ ( sK9_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[166]) ).

thf(228,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK12_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)],[167]) ).

thf(229,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY2047: $i] :
                  ( ~ ( in @ ( sK14_C @ B @ A ) @ SY2047 )
                  | ~ ( in @ SY2047 @ A ) )
              | ~ ( in @ ( sK14_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK14_C @ B @ A ) @ ( sK15_SY2048 @ B @ A ) )
                & ( in @ ( sK15_SY2048 @ B @ A ) @ A ) )
              | ( in @ ( sK14_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 @ ( sK13_D @ C @ B @ A ) )
                  & ( in @ ( sK13_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[168]) ).

thf(230,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY2049: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK17_C @ B @ A ) @ SY2049 ) @ A )
                    | ~ ( in @ ( sK17_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK17_C @ B @ A ) @ ( sK18_SY2050 @ B @ A ) ) @ A )
                    | ( in @ ( sK17_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 @ ( sK16_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[169]) ).

thf(231,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_intersection2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_intersection2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ~ ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[170]) ).

thf(232,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK20_C @ B @ A ) @ A )
            & ~ ( in @ ( sK20_C @ B @ A ) @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ( in @ C @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[171]) ).

thf(233,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY2052: $i,SY2053: $i] :
                      ( ~ ( in @ SY2052 @ A )
                      | ~ ( in @ SY2053 @ B )
                      | ( ( sK23_D @ C @ B @ A )
                       != ( ordered_pair @ SY2052 @ SY2053 ) ) )
                  | ~ ( in @ ( sK23_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK24_SY2054 @ C @ B @ A ) @ A )
                    & ( in @ ( sK25_SY2056 @ C @ B @ A ) @ B )
                    & ( ( sK23_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK24_SY2054 @ C @ B @ A ) @ ( sK25_SY2056 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK23_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK21_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK22_SY2051 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK21_E @ D @ C @ B @ A ) @ ( sK22_SY2051 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[172]) ).

thf(234,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ B ) ) )
              | ( C
                = ( set_union2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_union2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A )
                    | ( in @ D @ B ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[173]) ).

thf(235,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                    = A )
                  | ( ( sK27_D @ C @ B @ A )
                    = B ) ) )
              | ( C
                = ( unordered_pair @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( unordered_pair @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( D = A )
                    | ( D = B ) )
                & ! [D: $i] :
                    ( ( D != A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ( D != B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[174]) ).

thf(236,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)],[175]) ).

thf(237,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK28_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK28_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK28_C @ B @ A ) @ B )
              | ( subset @ ( sK28_C @ B @ A ) @ A ) ) )
          | ( B
            = ( powerset @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( subset @ C @ A ) )
            & ! [C: $i] :
                ( ~ ( subset @ C @ A )
                | ( in @ C @ B ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[176]) ).

thf(238,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK29_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[177]) ).

thf(239,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK30_C @ B @ A )
               != A )
              | ~ ( in @ ( sK30_C @ B @ A ) @ B ) )
            & ( ( ( sK30_C @ B @ A )
                = A )
              | ( in @ ( sK30_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)],[178]) ).

thf(240,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK33_SY2057 @ B @ A ) @ A )
                    & ~ ( in @ ( sK32_C @ B @ A ) @ ( sK33_SY2057 @ B @ A ) ) )
                  | ~ ( in @ ( sK32_C @ B @ A ) @ B ) )
                & ( ! [SY2058: $i] :
                      ( ~ ( in @ SY2058 @ A )
                      | ( in @ ( sK32_C @ B @ A ) @ SY2058 ) )
                  | ( in @ ( sK32_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK31_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK31_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)],[179]) ).

thf(241,plain,
    ( ( ! [A: $i] :
          ( ( ! [SY2060: $i,SY2061: $i] :
                ( ( sK36_B @ A )
               != ( ordered_pair @ SY2060 @ SY2061 ) )
            & ( in @ ( sK36_B @ A ) @ A ) )
          | ( relation @ A ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ( B
                = ( ordered_pair @ ( sK34_C @ B @ A ) @ ( sK35_SY2059 @ B @ A ) ) )
              | ~ ( in @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[180]) ).

thf(242,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[181]) ).

thf(243,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[182]) ).

thf(244,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)],[183]) ).

thf(245,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)],[184]) ).

thf(246,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)],[185]) ).

thf(247,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK37_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)],[186]) ).

thf(248,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[187]) ).

thf(249,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK38_C @ B @ A ) @ A )
            & ( in @ ( sK38_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)],[188]) ).

thf(250,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)],[189]) ).

thf(251,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)],[190]) ).

thf(252,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)],[191]) ).

thf(253,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) ) )
            & ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[192]) ).

thf(254,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[193]) ).

thf(255,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ A @ ( relation_dom @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ B @ ( relation_rng @ C ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[194]) ).

thf(256,plain,
    ( ( ! [A: $i] :
          ( ! [SY2062: $i] :
              ( ~ ( subset @ SY2062 @ ( sK39_B @ A ) )
              | ( are_equipotent @ SY2062 @ ( sK39_B @ A ) )
              | ( in @ SY2062 @ ( sK39_B @ A ) ) )
          & ! [SY2063: $i] :
              ( ~ ( in @ SY2063 @ ( sK39_B @ A ) )
              | ( in @ ( powerset @ SY2063 ) @ ( sK39_B @ A ) ) )
          & ! [SY2064: $i,SY2065: $i] :
              ( ~ ( in @ SY2064 @ ( sK39_B @ A ) )
              | ~ ( subset @ SY2065 @ SY2064 )
              | ( in @ SY2065 @ ( sK39_B @ A ) ) )
          & ( in @ A @ ( sK39_B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[195]) ).

thf(257,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)],[196]) ).

thf(258,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK40_C @ B @ A ) @ A )
            & ~ ( in @ ( sK40_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[197]) ).

thf(259,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)],[198]) ).

thf(260,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[199]) ).

thf(261,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)],[200]) ).

thf(262,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[201]) ).

thf(263,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)],[202]) ).

thf(264,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[203]) ).

thf(265,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[204]) ).

thf(266,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[205]) ).

thf(267,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[266]) ).

thf(268,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[265]) ).

thf(269,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[264]) ).

thf(270,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)],[263]) ).

thf(271,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[262]) ).

thf(272,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)],[261]) ).

thf(273,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[260]) ).

thf(274,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)],[259]) ).

thf(275,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK40_C @ B @ A ) @ A )
            & ~ ( in @ ( sK40_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[258]) ).

thf(276,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)],[257]) ).

thf(277,plain,
    ( ( ! [A: $i] :
          ( ! [SY2062: $i] :
              ( ~ ( subset @ SY2062 @ ( sK39_B @ A ) )
              | ( are_equipotent @ SY2062 @ ( sK39_B @ A ) )
              | ( in @ SY2062 @ ( sK39_B @ A ) ) )
          & ! [SY2063: $i] :
              ( ~ ( in @ SY2063 @ ( sK39_B @ A ) )
              | ( in @ ( powerset @ SY2063 ) @ ( sK39_B @ A ) ) )
          & ! [SY2064: $i,SY2065: $i] :
              ( ~ ( in @ SY2064 @ ( sK39_B @ A ) )
              | ~ ( subset @ SY2065 @ SY2064 )
              | ( in @ SY2065 @ ( sK39_B @ A ) ) )
          & ( in @ A @ ( sK39_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[256]) ).

thf(278,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ A @ ( relation_dom @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ B @ ( relation_rng @ C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[255]) ).

thf(279,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[254]) ).

thf(280,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) ) )
            & ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[253]) ).

thf(281,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)],[252]) ).

thf(282,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)],[251]) ).

thf(283,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)],[250]) ).

thf(284,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK38_C @ B @ A ) @ A )
            & ( in @ ( sK38_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[249]) ).

thf(285,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[248]) ).

thf(286,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK37_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)],[247]) ).

thf(287,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)],[246]) ).

thf(288,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)],[245]) ).

thf(289,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)],[244]) ).

thf(290,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[243]) ).

thf(291,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[242]) ).

thf(292,plain,
    ( ( ! [A: $i] :
          ( ( ! [SY2060: $i,SY2061: $i] :
                ( ( sK36_B @ A )
               != ( ordered_pair @ SY2060 @ SY2061 ) )
            & ( in @ ( sK36_B @ A ) @ A ) )
          | ( relation @ A ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ( B
                = ( ordered_pair @ ( sK34_C @ B @ A ) @ ( sK35_SY2059 @ B @ A ) ) )
              | ~ ( in @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[241]) ).

thf(293,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK33_SY2057 @ B @ A ) @ A )
                    & ~ ( in @ ( sK32_C @ B @ A ) @ ( sK33_SY2057 @ B @ A ) ) )
                  | ~ ( in @ ( sK32_C @ B @ A ) @ B ) )
                & ( ! [SY2058: $i] :
                      ( ~ ( in @ SY2058 @ A )
                      | ( in @ ( sK32_C @ B @ A ) @ SY2058 ) )
                  | ( in @ ( sK32_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK31_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK31_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)],[240]) ).

thf(294,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK30_C @ B @ A )
               != A )
              | ~ ( in @ ( sK30_C @ B @ A ) @ B ) )
            & ( ( ( sK30_C @ B @ A )
                = A )
              | ( in @ ( sK30_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)],[239]) ).

thf(295,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK29_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[238]) ).

thf(296,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK28_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK28_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK28_C @ B @ A ) @ B )
              | ( subset @ ( sK28_C @ B @ A ) @ A ) ) )
          | ( B
            = ( powerset @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( subset @ C @ A ) )
            & ! [C: $i] :
                ( ~ ( subset @ C @ A )
                | ( in @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[237]) ).

thf(297,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)],[236]) ).

thf(298,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                    = A )
                  | ( ( sK27_D @ C @ B @ A )
                    = B ) ) )
              | ( C
                = ( unordered_pair @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( unordered_pair @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( D = A )
                    | ( D = B ) )
                & ! [D: $i] :
                    ( ( D != A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ( D != B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[235]) ).

thf(299,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ B ) ) )
              | ( C
                = ( set_union2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_union2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A )
                    | ( in @ D @ B ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[234]) ).

thf(300,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY2052: $i,SY2053: $i] :
                      ( ~ ( in @ SY2052 @ A )
                      | ~ ( in @ SY2053 @ B )
                      | ( ( sK23_D @ C @ B @ A )
                       != ( ordered_pair @ SY2052 @ SY2053 ) ) )
                  | ~ ( in @ ( sK23_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK24_SY2054 @ C @ B @ A ) @ A )
                    & ( in @ ( sK25_SY2056 @ C @ B @ A ) @ B )
                    & ( ( sK23_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK24_SY2054 @ C @ B @ A ) @ ( sK25_SY2056 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK23_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK21_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK22_SY2051 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK21_E @ D @ C @ B @ A ) @ ( sK22_SY2051 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[233]) ).

thf(301,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK20_C @ B @ A ) @ A )
            & ~ ( in @ ( sK20_C @ B @ A ) @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(302,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_intersection2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_intersection2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ~ ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[231]) ).

thf(303,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY2049: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK17_C @ B @ A ) @ SY2049 ) @ A )
                    | ~ ( in @ ( sK17_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK17_C @ B @ A ) @ ( sK18_SY2050 @ B @ A ) ) @ A )
                    | ( in @ ( sK17_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 @ ( sK16_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[230]) ).

thf(304,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY2047: $i] :
                  ( ~ ( in @ ( sK14_C @ B @ A ) @ SY2047 )
                  | ~ ( in @ SY2047 @ A ) )
              | ~ ( in @ ( sK14_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK14_C @ B @ A ) @ ( sK15_SY2048 @ B @ A ) )
                & ( in @ ( sK15_SY2048 @ B @ A ) @ A ) )
              | ( in @ ( sK14_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 @ ( sK13_D @ C @ B @ A ) )
                  & ( in @ ( sK13_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[229]) ).

thf(305,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK12_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)],[228]) ).

thf(306,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY2045: $i] :
                        ~ ( in @ ( ordered_pair @ SY2045 @ ( sK10_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK10_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ B @ A ) @ ( sK10_C @ B @ A ) ) @ A )
                    | ( in @ ( sK10_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 @ ( sK9_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[227]) ).

thf(307,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(308,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[226]) ).

thf(309,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ ( powerset @ A ) ) )
                | ( ( element @ ( sK8_D @ C @ B @ A ) @ ( powerset @ A ) )
                  & ( ~ ( in @ ( sK8_D @ C @ B @ A ) @ C )
                    | ~ ( in @ ( subset_complement @ A @ ( sK8_D @ C @ B @ A ) ) @ B ) )
                  & ( ( in @ ( sK8_D @ C @ B @ A ) @ C )
                    | ( in @ ( subset_complement @ A @ ( sK8_D @ C @ B @ A ) ) @ B ) ) )
                | ( C
                  = ( complements_of_subsets @ A @ B ) ) )
            & ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ ( powerset @ A ) ) )
                | ( C
                 != ( complements_of_subsets @ A @ B ) )
                | ( ! [D: $i] :
                      ( ~ ( element @ D @ ( powerset @ A ) )
                      | ~ ( in @ D @ C )
                      | ( in @ ( subset_complement @ A @ D ) @ B ) )
                  & ! [D: $i] :
                      ( ~ ( element @ D @ ( powerset @ A ) )
                      | ~ ( in @ ( subset_complement @ A @ D ) @ B )
                      | ( in @ D @ C ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[225]) ).

thf(310,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[162]) ).

thf(311,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[224]) ).

thf(312,plain,
    ( ( ( empty @ sK7_A )
      & ( relation @ sK7_A ) )
    = $true ),
    inference(copy,[status(thm)],[223]) ).

thf(313,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[222]) ).

thf(314,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[221]) ).

thf(315,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK6_C @ B @ A ) @ A )
              | ~ ( in @ ( sK6_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK6_C @ B @ A ) @ A )
              | ( in @ ( sK6_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[220]) ).

thf(316,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[219]) ).

thf(317,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[218]) ).

thf(318,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[217]) ).

thf(319,plain,
    ( ( ! [A: $i] :
          ( ! [SY2038: $i] :
              ( ~ ( subset @ SY2038 @ ( sK4_B @ A ) )
              | ( are_equipotent @ SY2038 @ ( sK4_B @ A ) )
              | ( in @ SY2038 @ ( sK4_B @ A ) ) )
          & ! [SY2039: $i] :
              ( ( ! [SY2044: $i] :
                    ( ~ ( subset @ SY2044 @ SY2039 )
                    | ( in @ SY2044 @ ( sK5_SY2040 @ SY2039 @ A ) ) )
                & ( in @ ( sK5_SY2040 @ SY2039 @ A ) @ ( sK4_B @ A ) ) )
              | ~ ( in @ SY2039 @ ( sK4_B @ A ) ) )
          & ! [SY2042: $i,SY2043: $i] :
              ( ~ ( in @ SY2042 @ ( sK4_B @ A ) )
              | ~ ( subset @ SY2043 @ SY2042 )
              | ( in @ SY2043 @ ( sK4_B @ A ) ) )
          & ( in @ A @ ( sK4_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[216]) ).

thf(320,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY2035 ) @ sK3_SY2037 )
    = $true ),
    inference(copy,[status(thm)],[210]) ).

thf(321,plain,
    ( ( relation @ sK3_SY2037 )
    = $true ),
    inference(copy,[status(thm)],[209]) ).

thf(322,plain,
    ( ( ~ ( in @ sK1_A @ ( relation_field @ sK3_SY2037 ) ) )
    = $true ),
    inference(copy,[status(thm)],[214]) ).

thf(323,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)],[282]) ).

thf(324,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX0 @ ( relation_dom @ SX2 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX1 @ ( relation_rng @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[278]) ).

thf(325,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ! [SX3: $i,SX4: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX4 @ SX1 )
                              | ( ( sK23_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ SX3 @ SX4 ) ) )
                          | ~ ( in @ ( sK23_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ( in @ ( sK25_SY2056 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                              | ( ( sK23_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ ( sK24_SY2054 @ SX2 @ SX1 @ SX0 ) @ ( sK25_SY2056 @ SX2 @ SX1 @ SX0 ) ) ) )
                          | ( in @ ( sK23_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) )
                  | ( SX2
                    = ( cartesian_product2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( cartesian_product2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ! [SX4: $i,SX5: $i] :
                                ( ~ ( in @ SX4 @ SX0 )
                                | ~ ( in @ SX5 @ SX1 )
                                | ( SX3
                                 != ( ordered_pair @ SX4 @ SX5 ) ) )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ( in @ ( sK22_SY2051 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                                | ( SX3
                                 != ( ordered_pair @ ( sK21_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ ( sK22_SY2051 @ SX3 @ SX2 @ SX1 @ SX0 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[300]) ).

thf(326,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ! [SX2: $i] :
                            ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX2 )
                            | ~ ( in @ SX2 @ SX0 ) )
                        | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( sK15_SY2048 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK15_SY2048 @ SX1 @ SX0 ) @ SX0 ) )
                        | ( in @ ( sK14_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 @ ( sK13_D @ SX2 @ SX1 @ SX0 ) )
                              | ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[304]) ).

thf(327,plain,
    ( ( ~ ( ~ ( empty @ sK7_A )
          | ~ ( relation @ sK7_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[312]) ).

thf(328,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                  | ( SX2
                    = ( set_union2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_union2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[299]) ).

thf(329,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK38_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)],[284]) ).

thf(330,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ ( powerset @ SX0 ) ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ~ ( element @ SX2 @ ( powerset @ ( powerset @ SX0 ) ) )
                    | ~ ( ~ ( element @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ ( powerset @ SX0 ) )
                        | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                  | ~ ( in @ ( subset_complement @ SX0 @ ( sK8_D @ SX2 @ SX1 @ SX0 ) ) @ SX1 ) )
                              | ~ ( ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                  | ( in @ ( subset_complement @ SX0 @ ( sK8_D @ SX2 @ SX1 @ SX0 ) ) @ SX1 ) ) ) )
                    | ( SX2
                      = ( complements_of_subsets @ SX0 @ SX1 ) ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( element @ SX2 @ ( powerset @ ( powerset @ SX0 ) ) )
                    | ( SX2
                     != ( complements_of_subsets @ SX0 @ SX1 ) )
                    | ~ ( ~ ! [SX3: $i] :
                              ( ~ ( element @ SX3 @ ( powerset @ SX0 ) )
                              | ~ ( in @ SX3 @ SX2 )
                              | ( in @ ( subset_complement @ SX0 @ SX3 ) @ SX1 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( element @ SX3 @ ( powerset @ SX0 ) )
                              | ~ ( in @ ( subset_complement @ SX0 @ SX3 ) @ SX1 )
                              | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[309]) ).

thf(331,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                            = SX1 ) ) )
                  | ( SX2
                    = ( unordered_pair @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( unordered_pair @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( SX3 = SX0 )
                            | ( SX3 = SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ( SX3 != SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[298]) ).

thf(332,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)],[281]) ).

thf(333,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)],[274]) ).

thf(334,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK4_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK4_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK4_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( ~ ! [SX2: $i] :
                                  ( ~ ( subset @ SX2 @ SX1 )
                                  | ( in @ SX2 @ ( sK5_SY2040 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK5_SY2040 @ SX1 @ SX0 ) @ ( sK4_B @ SX0 ) ) )
                        | ~ ( in @ SX1 @ ( sK4_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK4_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK4_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK4_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[319]) ).

thf(335,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
                | ( SX1
                  = ( powerset @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( powerset @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ( subset @ SX2 @ SX0 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( subset @ SX2 @ SX0 )
                          | ( in @ SX2 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[296]) ).

thf(336,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ SX2 @ ( sK10_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SX1 @ SX0 ) @ ( sK10_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK10_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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[306]) ).

thf(337,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[275]) ).

thf(338,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[301]) ).

thf(339,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)],[283]) ).

thf(340,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                                  | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                              | ~ ( ! [SX2: $i] :
                                      ( ~ ( in @ SX2 @ SX0 )
                                      | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                                  | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ~ ( ~ ! [SX2: $i] :
                                    ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                        | ~ ~ ( in @ SX2 @ ( sK31_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)],[293]) ).

thf(341,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK17_C @ SX1 @ SX0 ) @ SX2 ) @ SX0 )
                            | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY2050 @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK17_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 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[303]) ).

thf(342,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)],[270]) ).

thf(343,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK39_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK39_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK39_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( in @ SX1 @ ( sK39_B @ SX0 ) )
                        | ( in @ ( powerset @ SX1 ) @ ( sK39_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK39_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK39_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK39_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[277]) ).

thf(344,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK30_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK30_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK30_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)],[294]) ).

thf(345,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK6_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK6_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK6_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK6_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[315]) ).

thf(346,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)],[276]) ).

thf(347,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                          ( ( sK36_B @ SX0 )
                         != ( ordered_pair @ SX1 @ SX2 ) )
                    | ~ ( in @ ( sK36_B @ SX0 ) @ SX0 ) )
                | ( relation @ SX0 ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ! [SX1: $i] :
                    ( ( SX1
                      = ( ordered_pair @ ( sK34_C @ SX1 @ SX0 ) @ ( sK35_SY2059 @ SX1 @ SX0 ) ) )
                    | ~ ( in @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[292]) ).

thf(348,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( subset @ SX0 @ SX1 )
                    | ( subset @ ( relation_dom @ SX0 ) @ ( relation_dom @ SX1 ) ) )
              | ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( subset @ SX0 @ SX1 )
                    | ( subset @ ( relation_rng @ SX0 ) @ ( relation_rng @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[280]) ).

thf(349,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK37_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)],[286]) ).

thf(350,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)],[289]) ).

thf(351,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK29_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[295]) ).

thf(352,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)],[297]) ).

thf(353,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK12_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)],[305]) ).

thf(354,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_intersection2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_intersection2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ~ ( in @ SX3 @ SX1 )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX0 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[302]) ).

thf(355,plain,
    ! [SV1: $i] :
      ( ( ! [SY2066: $i] :
            ( ~ ( in @ SV1 @ SY2066 )
            | ( ( set_union2 @ ( singleton @ SV1 ) @ SY2066 )
              = SY2066 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[267]) ).

thf(356,plain,
    ! [SV2: $i] :
      ( ( ! [SY2067: $i] :
            ( ~ ( disjoint @ ( singleton @ SV2 ) @ SY2067 )
            | ~ ( in @ SV2 @ SY2067 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[268]) ).

thf(357,plain,
    ! [SV3: $i] :
      ( ( ! [SY2068: $i] :
            ( ( in @ SV3 @ SY2068 )
            | ( disjoint @ ( singleton @ SV3 ) @ SY2068 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[269]) ).

thf(358,plain,
    ! [SV4: $i] :
      ( ( ! [SY2069: $i] :
            ( ~ ( element @ SY2069 @ ( powerset @ SV4 ) )
            | ! [SY2070: $i] :
                ( ~ ( in @ SY2070 @ SY2069 )
                | ( in @ SY2070 @ SV4 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[271]) ).

thf(359,plain,
    ! [SV5: $i] :
      ( ( ! [SY2071: $i] :
            ( ~ ( subset @ SV5 @ SY2071 )
            | ! [SY2072: $i] :
                ( ( in @ SY2072 @ SV5 )
                | ( subset @ SV5 @ ( set_difference @ SY2071 @ ( singleton @ SY2072 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[272]) ).

thf(360,plain,
    ! [SV6: $i] :
      ( ( ! [SY2073: $i] :
            ( ~ ( in @ SV6 @ SY2073 )
            | ( subset @ SV6 @ ( union @ SY2073 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[273]) ).

thf(361,plain,
    ! [SV7: $i] :
      ( ( ~ ( relation @ SV7 )
        | ( subset @ SV7 @ ( cartesian_product2 @ ( relation_dom @ SV7 ) @ ( relation_rng @ SV7 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[279]) ).

thf(362,plain,
    ! [SV8: $i] :
      ( ( ! [SY2074: $i] :
            ( ~ ( in @ SV8 @ SY2074 )
            | ( ( set_union2 @ ( singleton @ SV8 ) @ SY2074 )
              = SY2074 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[285]) ).

thf(363,plain,
    ! [SV9: $i] :
      ( ( ( SV9 = empty_set )
        | ! [SY2075: $i] :
            ( ~ ( element @ SY2075 @ ( powerset @ SV9 ) )
            | ! [SY2076: $i] :
                ( ~ ( element @ SY2076 @ SV9 )
                | ( in @ SY2076 @ SY2075 )
                | ( in @ SY2076 @ ( subset_complement @ SV9 @ SY2075 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[287]) ).

thf(364,plain,
    ! [SV10: $i] :
      ( ( ! [SY2077: $i,SY2078: $i] :
            ( ~ ( element @ SY2078 @ ( powerset @ SV10 ) )
            | ~ ( in @ SY2077 @ ( subset_complement @ SV10 @ SY2078 ) )
            | ~ ( in @ SY2077 @ SY2078 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[288]) ).

thf(365,plain,
    ! [SV11: $i] :
      ( ( ! [SY2079: $i] :
            ( ~ ( in @ SV11 @ SY2079 )
            | ( subset @ SV11 @ ( union @ SY2079 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[290]) ).

thf(366,plain,
    ! [SV12: $i] :
      ( ( ! [SY2080: $i] :
            ( ~ ( in @ SV12 @ SY2080 )
            | ~ ( in @ SY2080 @ SV12 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[291]) ).

thf(367,plain,
    ! [SV13: $i] :
      ( ( ! [SY2081: $i] :
            ( ( ordered_pair @ SV13 @ SY2081 )
            = ( unordered_pair @ ( unordered_pair @ SV13 @ SY2081 ) @ ( singleton @ SV13 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[307]) ).

thf(368,plain,
    ! [SV14: $i] :
      ( ( ~ ( relation @ SV14 )
        | ( ( relation_field @ SV14 )
          = ( set_union2 @ ( relation_dom @ SV14 ) @ ( relation_rng @ SV14 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[308]) ).

thf(369,plain,
    ! [SV15: $i] :
      ( ( ! [SY2082: $i] :
            ~ ( empty @ ( ordered_pair @ SV15 @ SY2082 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[310]) ).

thf(370,plain,
    ! [SV16: $i] :
      ( ( ! [SY2083: $i] :
            ( ~ ( relation @ SV16 )
            | ~ ( relation @ SY2083 )
            | ( relation @ ( set_union2 @ SV16 @ SY2083 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[311]) ).

thf(371,plain,
    ! [SV17: $i] :
      ( ( ! [SY2084: $i] :
            ( ~ ( in @ SV17 @ SY2084 )
            | ( element @ SV17 @ SY2084 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[313]) ).

thf(372,plain,
    ! [SV18: $i] :
      ( ( ! [SY2085: $i] :
            ( ~ ( element @ SV18 @ SY2085 )
            | ( empty @ SY2085 )
            | ( in @ SV18 @ SY2085 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[314]) ).

thf(373,plain,
    ! [SV19: $i] :
      ( ( ! [SY2086: $i,SY2087: $i] :
            ( ~ ( element @ SY2086 @ ( powerset @ SY2087 ) )
            | ~ ( in @ SV19 @ SY2086 )
            | ( element @ SV19 @ SY2087 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[316]) ).

thf(374,plain,
    ! [SV20: $i] :
      ( ( ! [SY2088: $i,SY2089: $i] :
            ( ~ ( element @ SY2088 @ ( powerset @ SY2089 ) )
            | ~ ( in @ SV20 @ SY2088 )
            | ~ ( empty @ SY2089 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[317]) ).

thf(375,plain,
    ! [SV21: $i] :
      ( ( ! [SY2090: $i] :
            ( ~ ( empty @ SY2090 )
            | ~ ( in @ SV21 @ SY2090 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[318]) ).

thf(376,plain,
    ( ( in @ sK1_A @ ( relation_field @ sK3_SY2037 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[322]) ).

thf(377,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)],[323]) ).

thf(378,plain,
    ! [SV22: $i] :
      ( ( ~ ( ~ ! [SY2091: $i,SY2092: $i] :
                  ( ~ ( relation @ SY2092 )
                  | ~ ( in @ ( ordered_pair @ SV22 @ SY2091 ) @ SY2092 )
                  | ( in @ SV22 @ ( relation_dom @ SY2092 ) ) )
            | ~ ! [SY2093: $i,SY2094: $i] :
                  ( ~ ( relation @ SY2094 )
                  | ~ ( in @ ( ordered_pair @ SV22 @ SY2093 ) @ SY2094 )
                  | ( in @ SY2093 @ ( relation_rng @ SY2094 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[324]) ).

thf(379,plain,
    ! [SV23: $i] :
      ( ( ~ ( ~ ! [SY2095: $i,SY2096: $i] :
                  ( ~ ( ~ ( ! [SY2097: $i,SY2098: $i] :
                              ( ~ ( in @ SY2097 @ SV23 )
                              | ~ ( in @ SY2098 @ SY2095 )
                              | ( ( sK23_D @ SY2096 @ SY2095 @ SV23 )
                               != ( ordered_pair @ SY2097 @ SY2098 ) ) )
                          | ~ ( in @ ( sK23_D @ SY2096 @ SY2095 @ SV23 ) @ SY2096 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2096 @ SY2095 @ SV23 ) @ SV23 )
                                    | ~ ( in @ ( sK25_SY2056 @ SY2096 @ SY2095 @ SV23 ) @ SY2095 ) )
                              | ( ( sK23_D @ SY2096 @ SY2095 @ SV23 )
                               != ( ordered_pair @ ( sK24_SY2054 @ SY2096 @ SY2095 @ SV23 ) @ ( sK25_SY2056 @ SY2096 @ SY2095 @ SV23 ) ) ) )
                          | ( in @ ( sK23_D @ SY2096 @ SY2095 @ SV23 ) @ SY2096 ) ) )
                  | ( SY2096
                    = ( cartesian_product2 @ SV23 @ SY2095 ) ) )
            | ~ ! [SY2099: $i,SY2100: $i] :
                  ( ( SY2100
                   != ( cartesian_product2 @ SV23 @ SY2099 ) )
                  | ~ ( ~ ! [SY2101: $i] :
                            ( ! [SY2102: $i,SY2103: $i] :
                                ( ~ ( in @ SY2102 @ SV23 )
                                | ~ ( in @ SY2103 @ SY2099 )
                                | ( SY2101
                                 != ( ordered_pair @ SY2102 @ SY2103 ) ) )
                            | ( in @ SY2101 @ SY2100 ) )
                      | ~ ! [SY2104: $i] :
                            ( ~ ( in @ SY2104 @ SY2100 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ SV23 )
                                      | ~ ( in @ ( sK22_SY2051 @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ SY2099 ) )
                                | ( SY2104
                                 != ( ordered_pair @ ( sK21_E @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ ( sK22_SY2051 @ SY2104 @ SY2100 @ SY2099 @ SV23 ) ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[325]) ).

thf(380,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( sK15_SY2048 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK15_SY2048 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK14_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 @ ( sK13_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[326]) ).

thf(381,plain,
    ( ( ~ ( empty @ sK7_A )
      | ~ ( relation @ sK7_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[327]) ).

thf(382,plain,
    ! [SV24: $i] :
      ( ( ~ ( ~ ! [SY2105: $i,SY2106: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                                | ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SV24 ) )
                            | ~ ( ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                                | ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2105 ) ) )
                      | ~ ( ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                          | ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SV24 )
                          | ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2105 ) ) )
                  | ( SY2106
                    = ( set_union2 @ SV24 @ SY2105 ) ) )
            | ~ ! [SY2107: $i,SY2108: $i] :
                  ( ( SY2108
                   != ( set_union2 @ SV24 @ SY2107 ) )
                  | ~ ( ~ ! [SY2109: $i] :
                            ( ~ ( in @ SY2109 @ SY2108 )
                            | ( in @ SY2109 @ SV24 )
                            | ( in @ SY2109 @ SY2107 ) )
                      | ~ ~ ( ~ ! [SY2110: $i] :
                                  ( ~ ( in @ SY2110 @ SV24 )
                                  | ( in @ SY2110 @ SY2108 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY2107 )
                                  | ( in @ SX3 @ SY2108 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[328]) ).

thf(383,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK38_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)],[329]) ).

thf(384,plain,
    ! [SV25: $i] :
      ( ( ! [SY2112: $i] :
            ( ~ ( element @ SY2112 @ ( powerset @ ( powerset @ SV25 ) ) )
            | ~ ( ~ ! [SY2113: $i] :
                      ( ~ ( element @ SY2113 @ ( powerset @ ( powerset @ SV25 ) ) )
                      | ~ ( ~ ( element @ ( sK8_D @ SY2113 @ SY2112 @ SV25 ) @ ( powerset @ SV25 ) )
                          | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2113 @ SY2112 @ SV25 ) @ SY2113 )
                                    | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2113 @ SY2112 @ SV25 ) ) @ SY2112 ) )
                                | ~ ( ( in @ ( sK8_D @ SY2113 @ SY2112 @ SV25 ) @ SY2113 )
                                    | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2113 @ SY2112 @ SV25 ) ) @ SY2112 ) ) ) )
                      | ( SY2113
                        = ( complements_of_subsets @ SV25 @ SY2112 ) ) )
                | ~ ! [SY2114: $i] :
                      ( ~ ( element @ SY2114 @ ( powerset @ ( powerset @ SV25 ) ) )
                      | ( SY2114
                       != ( complements_of_subsets @ SV25 @ SY2112 ) )
                      | ~ ( ~ ! [SY2115: $i] :
                                ( ~ ( element @ SY2115 @ ( powerset @ SV25 ) )
                                | ~ ( in @ SY2115 @ SY2114 )
                                | ( in @ ( subset_complement @ SV25 @ SY2115 ) @ SY2112 ) )
                          | ~ ! [SY2116: $i] :
                                ( ~ ( element @ SY2116 @ ( powerset @ SV25 ) )
                                | ~ ( in @ ( subset_complement @ SV25 @ SY2116 ) @ SY2112 )
                                | ( in @ SY2116 @ SY2114 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[330]) ).

thf(385,plain,
    ! [SV26: $i] :
      ( ( ~ ( ~ ! [SY2117: $i,SY2118: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                                | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                                 != SV26 ) )
                            | ~ ( ~ ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                                | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                                 != SY2117 ) ) )
                      | ~ ( ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                          | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                            = SV26 )
                          | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                            = SY2117 ) ) )
                  | ( SY2118
                    = ( unordered_pair @ SV26 @ SY2117 ) ) )
            | ~ ! [SY2119: $i,SY2120: $i] :
                  ( ( SY2120
                   != ( unordered_pair @ SV26 @ SY2119 ) )
                  | ~ ( ~ ! [SY2121: $i] :
                            ( ~ ( in @ SY2121 @ SY2120 )
                            | ( SY2121 = SV26 )
                            | ( SY2121 = SY2119 ) )
                      | ~ ~ ( ~ ! [SY2122: $i] :
                                  ( ( SY2122 != SV26 )
                                  | ( in @ SY2122 @ SY2120 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY2119 )
                                  | ( in @ SX3 @ SY2120 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[331]) ).

thf(386,plain,
    ! [SV27: $i] :
      ( ( ! [SY2124: $i] :
            ~ ( ~ ! [SY2125: $i] :
                    ( ! [SY2126: $i] :
                        ( ( ordered_pair @ SV27 @ SY2124 )
                       != ( ordered_pair @ SY2125 @ SY2126 ) )
                    | ( SV27 = SY2125 ) )
              | ~ ! [SY2127: $i,SY2128: $i] :
                    ( ( ( ordered_pair @ SV27 @ SY2124 )
                     != ( ordered_pair @ SY2127 @ SY2128 ) )
                    | ( SY2124 = SY2128 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[332]) ).

thf(387,plain,
    ! [SV28: $i] :
      ( ( ! [SY2129: $i] :
            ~ ( ~ ! [SY2130: $i,SY2131: $i] :
                    ( ~ ( in @ SV28 @ SY2130 )
                    | ~ ( in @ SY2129 @ SY2131 )
                    | ( in @ ( ordered_pair @ SV28 @ SY2129 ) @ ( cartesian_product2 @ SY2130 @ SY2131 ) ) )
              | ~ ~ ( ~ ! [SY2132: $i] :
                          ( ! [SY2133: $i] :
                              ~ ( in @ ( ordered_pair @ SV28 @ SY2129 ) @ ( cartesian_product2 @ SY2132 @ SY2133 ) )
                          | ( in @ SV28 @ SY2132 ) )
                    | ~ ! [SY2134: $i,SY2135: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV28 @ SY2129 ) @ ( cartesian_product2 @ SY2134 @ SY2135 ) )
                          | ( in @ SY2129 @ SY2135 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[333]) ).

thf(388,plain,
    ! [SV29: $i] :
      ( ( ~ ( ~ ! [SY2136: $i] :
                  ( ~ ( subset @ SY2136 @ ( sK4_B @ SV29 ) )
                  | ( are_equipotent @ SY2136 @ ( sK4_B @ SV29 ) )
                  | ( in @ SY2136 @ ( sK4_B @ SV29 ) ) )
            | ~ ~ ( ~ ! [SY2137: $i] :
                        ( ~ ( ~ ! [SY2138: $i] :
                                  ( ~ ( subset @ SY2138 @ SY2137 )
                                  | ( in @ SY2138 @ ( sK5_SY2040 @ SY2137 @ SV29 ) ) )
                            | ~ ( in @ ( sK5_SY2040 @ SY2137 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
                        | ~ ( in @ SY2137 @ ( sK4_B @ SV29 ) ) )
                  | ~ ~ ( ~ ! [SY2139: $i,SY2140: $i] :
                              ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
                              | ~ ( subset @ SY2140 @ SY2139 )
                              | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) )
                        | ~ ( in @ SV29 @ ( sK4_B @ SV29 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[334]) ).

thf(389,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( powerset @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( subset @ SX2 @ SX0 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( subset @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[335]) ).

thf(390,plain,
    ! [SV30: $i] :
      ( ( ~ ( relation @ SV30 )
        | ~ ( ~ ! [SY2141: $i] :
                  ( ~ ( ~ ( ! [SY2142: $i] :
                              ~ ( in @ ( ordered_pair @ SY2142 @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                          | ~ ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2141 @ SV30 ) @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                          | ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) ) )
                  | ( SY2141
                    = ( relation_rng @ SV30 ) ) )
            | ~ ! [SY2143: $i] :
                  ( ( SY2143
                   != ( relation_rng @ SV30 ) )
                  | ~ ( ~ ! [SY2144: $i] :
                            ( ! [SY2145: $i] :
                                ~ ( in @ ( ordered_pair @ SY2145 @ SY2144 ) @ SV30 )
                            | ( in @ SY2144 @ SY2143 ) )
                      | ~ ! [SY2146: $i] :
                            ( ~ ( in @ SY2146 @ SY2143 )
                            | ( in @ ( ordered_pair @ ( sK9_D @ SY2146 @ SY2143 @ SV30 ) @ SY2146 ) @ SV30 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[336]) ).

thf(391,plain,
    ! [SV31: $i] :
      ( ( ! [SY2147: $i] :
            ( ~ ( ~ ( in @ ( sK40_C @ SY2147 @ SV31 ) @ SV31 )
                | ~ ~ ( in @ ( sK40_C @ SY2147 @ SV31 ) @ SY2147 ) )
            | ( element @ SV31 @ ( powerset @ SY2147 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[337]) ).

thf(392,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[338]) ).

thf(393,plain,
    ! [SV32: $i] :
      ( ( ~ ( ~ ! [SY2148: $i,SY2149: $i] :
                  ( ~ ( in @ SV32 @ SY2149 )
                  | ~ ( in @ SY2148 @ SY2149 )
                  | ( subset @ ( unordered_pair @ SV32 @ SY2148 ) @ SY2149 ) )
            | ~ ~ ( ~ ! [SY2150: $i,SY2151: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2150 ) @ SY2151 )
                        | ( in @ SV32 @ SY2151 ) )
                  | ~ ! [SY2152: $i,SY2153: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2152 ) @ SY2153 )
                        | ( in @ SY2152 @ SY2153 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[339]) ).

thf(394,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK31_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)],[340]) ).

thf(395,plain,
    ! [SV33: $i] :
      ( ( ~ ( relation @ SV33 )
        | ~ ( ~ ! [SY2154: $i] :
                  ( ~ ( ~ ( ! [SY2155: $i] :
                              ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ SY2155 ) @ SV33 )
                          | ~ ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ ( sK18_SY2050 @ SY2154 @ SV33 ) ) @ SV33 )
                          | ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) ) )
                  | ( SY2154
                    = ( relation_dom @ SV33 ) ) )
            | ~ ! [SY2156: $i] :
                  ( ( SY2156
                   != ( relation_dom @ SV33 ) )
                  | ~ ( ~ ! [SY2157: $i] :
                            ( ! [SY2158: $i] :
                                ~ ( in @ ( ordered_pair @ SY2157 @ SY2158 ) @ SV33 )
                            | ( in @ SY2157 @ SY2156 ) )
                      | ~ ! [SY2159: $i] :
                            ( ~ ( in @ SY2159 @ SY2156 )
                            | ( in @ ( ordered_pair @ SY2159 @ ( sK16_D @ SY2159 @ SY2156 @ SV33 ) ) @ SV33 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[341]) ).

thf(396,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)],[342]) ).

thf(397,plain,
    ! [SV34: $i] :
      ( ( ~ ( ~ ! [SY2160: $i] :
                  ( ~ ( subset @ SY2160 @ ( sK39_B @ SV34 ) )
                  | ( are_equipotent @ SY2160 @ ( sK39_B @ SV34 ) )
                  | ( in @ SY2160 @ ( sK39_B @ SV34 ) ) )
            | ~ ~ ( ~ ! [SY2161: $i] :
                        ( ~ ( in @ SY2161 @ ( sK39_B @ SV34 ) )
                        | ( in @ ( powerset @ SY2161 ) @ ( sK39_B @ SV34 ) ) )
                  | ~ ~ ( ~ ! [SY2162: $i,SY2163: $i] :
                              ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
                              | ~ ( subset @ SY2163 @ SY2162 )
                              | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) )
                        | ~ ( in @ SV34 @ ( sK39_B @ SV34 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[343]) ).

thf(398,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK30_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK30_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK30_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)],[344]) ).

thf(399,plain,
    ! [SV35: $i] :
      ( ( ! [SY2164: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_C @ SY2164 @ SV35 ) @ SV35 )
                    | ~ ( in @ ( sK6_C @ SY2164 @ SV35 ) @ SY2164 ) )
                | ~ ( ( in @ ( sK6_C @ SY2164 @ SV35 ) @ SV35 )
                    | ( in @ ( sK6_C @ SY2164 @ SV35 ) @ SY2164 ) ) )
            | ( SV35 = SY2164 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[345]) ).

thf(400,plain,
    ! [SV36: $i] :
      ( ( ! [SY2165: $i] :
            ~ ( ~ ! [SY2166: $i,SY2167: $i] :
                    ( ~ ( in @ SV36 @ SY2166 )
                    | ~ ( in @ SY2165 @ SY2167 )
                    | ( in @ ( ordered_pair @ SV36 @ SY2165 ) @ ( cartesian_product2 @ SY2166 @ SY2167 ) ) )
              | ~ ~ ( ~ ! [SY2168: $i] :
                          ( ! [SY2169: $i] :
                              ~ ( in @ ( ordered_pair @ SV36 @ SY2165 ) @ ( cartesian_product2 @ SY2168 @ SY2169 ) )
                          | ( in @ SV36 @ SY2168 ) )
                    | ~ ! [SY2170: $i,SY2171: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV36 @ SY2165 ) @ ( cartesian_product2 @ SY2170 @ SY2171 ) )
                          | ( in @ SY2165 @ SY2171 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[346]) ).

thf(401,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK36_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK36_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK34_C @ SX1 @ SX0 ) @ ( sK35_SY2059 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[347]) ).

thf(402,plain,
    ! [SV37: $i] :
      ( ( ~ ( relation @ SV37 )
        | ~ ( ~ ! [SY2172: $i] :
                  ( ~ ( relation @ SY2172 )
                  | ~ ( subset @ SV37 @ SY2172 )
                  | ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SY2172 ) ) )
            | ~ ! [SY2173: $i] :
                  ( ~ ( relation @ SY2173 )
                  | ~ ( subset @ SV37 @ SY2173 )
                  | ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SY2173 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[348]) ).

thf(403,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK37_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)],[349]) ).

thf(404,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)],[350]) ).

thf(405,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK29_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[351]) ).

thf(406,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)],[352]) ).

thf(407,plain,
    ! [SV38: $i] :
      ( ( ~ ( ~ ! [SY2174: $i,SY2175: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SV38 )
                          | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2174 )
                          | ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SV38 )
                                | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) )
                            | ~ ( ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2174 )
                                | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) ) ) )
                  | ( SY2175
                    = ( set_difference @ SV38 @ SY2174 ) ) )
            | ~ ! [SY2176: $i,SY2177: $i] :
                  ( ( SY2177
                   != ( set_difference @ SV38 @ SY2176 ) )
                  | ~ ( ~ ! [SY2178: $i] :
                            ( ~ ( in @ SY2178 @ SV38 )
                            | ( in @ SY2178 @ SY2176 )
                            | ( in @ SY2178 @ SY2177 ) )
                      | ~ ~ ( ~ ! [SY2179: $i] :
                                  ( ~ ( in @ SY2179 @ SY2177 )
                                  | ( in @ SY2179 @ SV38 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY2177 )
                                  | ~ ( in @ SX3 @ SY2176 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[353]) ).

thf(408,plain,
    ! [SV39: $i] :
      ( ( ~ ( ~ ! [SY2181: $i,SY2182: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SV39 )
                          | ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2181 )
                          | ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SV39 )
                                | ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) )
                            | ~ ( ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2181 )
                                | ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) ) ) )
                  | ( SY2182
                    = ( set_intersection2 @ SV39 @ SY2181 ) ) )
            | ~ ! [SY2183: $i,SY2184: $i] :
                  ( ( SY2184
                   != ( set_intersection2 @ SV39 @ SY2183 ) )
                  | ~ ( ~ ! [SY2185: $i] :
                            ( ~ ( in @ SY2185 @ SV39 )
                            | ~ ( in @ SY2185 @ SY2183 )
                            | ( in @ SY2185 @ SY2184 ) )
                      | ~ ~ ( ~ ! [SY2186: $i] :
                                  ( ~ ( in @ SY2186 @ SY2184 )
                                  | ( in @ SY2186 @ SV39 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY2184 )
                                  | ( in @ SX3 @ SY2183 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[354]) ).

thf(409,plain,
    ! [SV40: $i,SV1: $i] :
      ( ( ~ ( in @ SV1 @ SV40 )
        | ( ( set_union2 @ ( singleton @ SV1 ) @ SV40 )
          = SV40 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[355]) ).

thf(410,plain,
    ! [SV41: $i,SV2: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV2 ) @ SV41 )
        | ~ ( in @ SV2 @ SV41 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[356]) ).

thf(411,plain,
    ! [SV42: $i,SV3: $i] :
      ( ( ( in @ SV3 @ SV42 )
        | ( disjoint @ ( singleton @ SV3 ) @ SV42 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[357]) ).

thf(412,plain,
    ! [SV4: $i,SV43: $i] :
      ( ( ~ ( element @ SV43 @ ( powerset @ SV4 ) )
        | ! [SY2188: $i] :
            ( ~ ( in @ SY2188 @ SV43 )
            | ( in @ SY2188 @ SV4 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[358]) ).

thf(413,plain,
    ! [SV44: $i,SV5: $i] :
      ( ( ~ ( subset @ SV5 @ SV44 )
        | ! [SY2189: $i] :
            ( ( in @ SY2189 @ SV5 )
            | ( subset @ SV5 @ ( set_difference @ SV44 @ ( singleton @ SY2189 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[359]) ).

thf(414,plain,
    ! [SV45: $i,SV6: $i] :
      ( ( ~ ( in @ SV6 @ SV45 )
        | ( subset @ SV6 @ ( union @ SV45 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[360]) ).

thf(415,plain,
    ! [SV7: $i] :
      ( ( ( ~ ( relation @ SV7 ) )
        = $true )
      | ( ( subset @ SV7 @ ( cartesian_product2 @ ( relation_dom @ SV7 ) @ ( relation_rng @ SV7 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[361]) ).

thf(416,plain,
    ! [SV46: $i,SV8: $i] :
      ( ( ~ ( in @ SV8 @ SV46 )
        | ( ( set_union2 @ ( singleton @ SV8 ) @ SV46 )
          = SV46 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[362]) ).

thf(417,plain,
    ! [SV9: $i] :
      ( ( ( SV9 = empty_set )
        = $true )
      | ( ( ! [SY2075: $i] :
              ( ~ ( element @ SY2075 @ ( powerset @ SV9 ) )
              | ! [SY2076: $i] :
                  ( ~ ( element @ SY2076 @ SV9 )
                  | ( in @ SY2076 @ SY2075 )
                  | ( in @ SY2076 @ ( subset_complement @ SV9 @ SY2075 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[363]) ).

thf(418,plain,
    ! [SV47: $i,SV10: $i] :
      ( ( ! [SY2190: $i] :
            ( ~ ( element @ SY2190 @ ( powerset @ SV10 ) )
            | ~ ( in @ SV47 @ ( subset_complement @ SV10 @ SY2190 ) )
            | ~ ( in @ SV47 @ SY2190 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[364]) ).

thf(419,plain,
    ! [SV48: $i,SV11: $i] :
      ( ( ~ ( in @ SV11 @ SV48 )
        | ( subset @ SV11 @ ( union @ SV48 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[365]) ).

thf(420,plain,
    ! [SV49: $i,SV12: $i] :
      ( ( ~ ( in @ SV12 @ SV49 )
        | ~ ( in @ SV49 @ SV12 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[366]) ).

thf(421,plain,
    ! [SV50: $i,SV13: $i] :
      ( ( ( ordered_pair @ SV13 @ SV50 )
        = ( unordered_pair @ ( unordered_pair @ SV13 @ SV50 ) @ ( singleton @ SV13 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[367]) ).

thf(422,plain,
    ! [SV14: $i] :
      ( ( ( ~ ( relation @ SV14 ) )
        = $true )
      | ( ( ( relation_field @ SV14 )
          = ( set_union2 @ ( relation_dom @ SV14 ) @ ( relation_rng @ SV14 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[368]) ).

thf(423,plain,
    ! [SV51: $i,SV15: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV15 @ SV51 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[369]) ).

thf(424,plain,
    ! [SV52: $i,SV16: $i] :
      ( ( ~ ( relation @ SV16 )
        | ~ ( relation @ SV52 )
        | ( relation @ ( set_union2 @ SV16 @ SV52 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[370]) ).

thf(425,plain,
    ! [SV53: $i,SV17: $i] :
      ( ( ~ ( in @ SV17 @ SV53 )
        | ( element @ SV17 @ SV53 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[371]) ).

thf(426,plain,
    ! [SV54: $i,SV18: $i] :
      ( ( ~ ( element @ SV18 @ SV54 )
        | ( empty @ SV54 )
        | ( in @ SV18 @ SV54 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[372]) ).

thf(427,plain,
    ! [SV19: $i,SV55: $i] :
      ( ( ! [SY2191: $i] :
            ( ~ ( element @ SV55 @ ( powerset @ SY2191 ) )
            | ~ ( in @ SV19 @ SV55 )
            | ( element @ SV19 @ SY2191 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[373]) ).

thf(428,plain,
    ! [SV20: $i,SV56: $i] :
      ( ( ! [SY2192: $i] :
            ( ~ ( element @ SV56 @ ( powerset @ SY2192 ) )
            | ~ ( in @ SV20 @ SV56 )
            | ~ ( empty @ SY2192 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[374]) ).

thf(429,plain,
    ! [SV21: $i,SV57: $i] :
      ( ( ~ ( empty @ SV57 )
        | ~ ( in @ SV21 @ SV57 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[375]) ).

thf(430,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[377]) ).

thf(431,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[377]) ).

thf(432,plain,
    ! [SV22: $i] :
      ( ( ~ ! [SY2091: $i,SY2092: $i] :
              ( ~ ( relation @ SY2092 )
              | ~ ( in @ ( ordered_pair @ SV22 @ SY2091 ) @ SY2092 )
              | ( in @ SV22 @ ( relation_dom @ SY2092 ) ) )
        | ~ ! [SY2093: $i,SY2094: $i] :
              ( ~ ( relation @ SY2094 )
              | ~ ( in @ ( ordered_pair @ SV22 @ SY2093 ) @ SY2094 )
              | ( in @ SY2093 @ ( relation_rng @ SY2094 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[378]) ).

thf(433,plain,
    ! [SV23: $i] :
      ( ( ~ ! [SY2095: $i,SY2096: $i] :
              ( ~ ( ~ ( ! [SY2097: $i,SY2098: $i] :
                          ( ~ ( in @ SY2097 @ SV23 )
                          | ~ ( in @ SY2098 @ SY2095 )
                          | ( ( sK23_D @ SY2096 @ SY2095 @ SV23 )
                           != ( ordered_pair @ SY2097 @ SY2098 ) ) )
                      | ~ ( in @ ( sK23_D @ SY2096 @ SY2095 @ SV23 ) @ SY2096 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2096 @ SY2095 @ SV23 ) @ SV23 )
                                | ~ ( in @ ( sK25_SY2056 @ SY2096 @ SY2095 @ SV23 ) @ SY2095 ) )
                          | ( ( sK23_D @ SY2096 @ SY2095 @ SV23 )
                           != ( ordered_pair @ ( sK24_SY2054 @ SY2096 @ SY2095 @ SV23 ) @ ( sK25_SY2056 @ SY2096 @ SY2095 @ SV23 ) ) ) )
                      | ( in @ ( sK23_D @ SY2096 @ SY2095 @ SV23 ) @ SY2096 ) ) )
              | ( SY2096
                = ( cartesian_product2 @ SV23 @ SY2095 ) ) )
        | ~ ! [SY2099: $i,SY2100: $i] :
              ( ( SY2100
               != ( cartesian_product2 @ SV23 @ SY2099 ) )
              | ~ ( ~ ! [SY2101: $i] :
                        ( ! [SY2102: $i,SY2103: $i] :
                            ( ~ ( in @ SY2102 @ SV23 )
                            | ~ ( in @ SY2103 @ SY2099 )
                            | ( SY2101
                             != ( ordered_pair @ SY2102 @ SY2103 ) ) )
                        | ( in @ SY2101 @ SY2100 ) )
                  | ~ ! [SY2104: $i] :
                        ( ~ ( in @ SY2104 @ SY2100 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ SV23 )
                                  | ~ ( in @ ( sK22_SY2051 @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ SY2099 ) )
                            | ( SY2104
                             != ( ordered_pair @ ( sK21_E @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ ( sK22_SY2051 @ SY2104 @ SY2100 @ SY2099 @ SV23 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[379]) ).

thf(434,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( sK15_SY2048 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK15_SY2048 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[380]) ).

thf(435,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 @ ( sK13_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[380]) ).

thf(436,plain,
    ( ( ~ ( empty @ sK7_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[381]) ).

thf(437,plain,
    ( ( ~ ( relation @ sK7_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[381]) ).

thf(438,plain,
    ! [SV24: $i] :
      ( ( ~ ! [SY2105: $i,SY2106: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                            | ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SV24 ) )
                        | ~ ( ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                            | ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2105 ) ) )
                  | ~ ( ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                      | ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SV24 )
                      | ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2105 ) ) )
              | ( SY2106
                = ( set_union2 @ SV24 @ SY2105 ) ) )
        | ~ ! [SY2107: $i,SY2108: $i] :
              ( ( SY2108
               != ( set_union2 @ SV24 @ SY2107 ) )
              | ~ ( ~ ! [SY2109: $i] :
                        ( ~ ( in @ SY2109 @ SY2108 )
                        | ( in @ SY2109 @ SV24 )
                        | ( in @ SY2109 @ SY2107 ) )
                  | ~ ~ ( ~ ! [SY2110: $i] :
                              ( ~ ( in @ SY2110 @ SV24 )
                              | ( in @ SY2110 @ SY2108 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2107 )
                              | ( in @ SX3 @ SY2108 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[382]) ).

thf(439,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[383]) ).

thf(440,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[383]) ).

thf(441,plain,
    ! [SV25: $i,SV58: $i] :
      ( ( ~ ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        | ~ ( ~ ! [SY2193: $i] :
                  ( ~ ( element @ SY2193 @ ( powerset @ ( powerset @ SV25 ) ) )
                  | ~ ( ~ ( element @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
                      | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                                | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) )
                            | ~ ( ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                                | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
                  | ( SY2193
                    = ( complements_of_subsets @ SV25 @ SV58 ) ) )
            | ~ ! [SY2194: $i] :
                  ( ~ ( element @ SY2194 @ ( powerset @ ( powerset @ SV25 ) ) )
                  | ( SY2194
                   != ( complements_of_subsets @ SV25 @ SV58 ) )
                  | ~ ( ~ ! [SY2195: $i] :
                            ( ~ ( element @ SY2195 @ ( powerset @ SV25 ) )
                            | ~ ( in @ SY2195 @ SY2194 )
                            | ( in @ ( subset_complement @ SV25 @ SY2195 ) @ SV58 ) )
                      | ~ ! [SY2196: $i] :
                            ( ~ ( element @ SY2196 @ ( powerset @ SV25 ) )
                            | ~ ( in @ ( subset_complement @ SV25 @ SY2196 ) @ SV58 )
                            | ( in @ SY2196 @ SY2194 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[384]) ).

thf(442,plain,
    ! [SV26: $i] :
      ( ( ~ ! [SY2117: $i,SY2118: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                            | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                             != SV26 ) )
                        | ~ ( ~ ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                            | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                             != SY2117 ) ) )
                  | ~ ( ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                      | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                        = SV26 )
                      | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                        = SY2117 ) ) )
              | ( SY2118
                = ( unordered_pair @ SV26 @ SY2117 ) ) )
        | ~ ! [SY2119: $i,SY2120: $i] :
              ( ( SY2120
               != ( unordered_pair @ SV26 @ SY2119 ) )
              | ~ ( ~ ! [SY2121: $i] :
                        ( ~ ( in @ SY2121 @ SY2120 )
                        | ( SY2121 = SV26 )
                        | ( SY2121 = SY2119 ) )
                  | ~ ~ ( ~ ! [SY2122: $i] :
                              ( ( SY2122 != SV26 )
                              | ( in @ SY2122 @ SY2120 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY2119 )
                              | ( in @ SX3 @ SY2120 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[385]) ).

thf(443,plain,
    ! [SV59: $i,SV27: $i] :
      ( ( ~ ( ~ ! [SY2197: $i] :
                  ( ! [SY2198: $i] :
                      ( ( ordered_pair @ SV27 @ SV59 )
                     != ( ordered_pair @ SY2197 @ SY2198 ) )
                  | ( SV27 = SY2197 ) )
            | ~ ! [SY2199: $i,SY2200: $i] :
                  ( ( ( ordered_pair @ SV27 @ SV59 )
                   != ( ordered_pair @ SY2199 @ SY2200 ) )
                  | ( SV59 = SY2200 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[386]) ).

thf(444,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ~ ( ~ ! [SY2201: $i,SY2202: $i] :
                  ( ~ ( in @ SV28 @ SY2201 )
                  | ~ ( in @ SV60 @ SY2202 )
                  | ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2201 @ SY2202 ) ) )
            | ~ ~ ( ~ ! [SY2203: $i] :
                        ( ! [SY2204: $i] :
                            ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2203 @ SY2204 ) )
                        | ( in @ SV28 @ SY2203 ) )
                  | ~ ! [SY2205: $i,SY2206: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2205 @ SY2206 ) )
                        | ( in @ SV60 @ SY2206 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[387]) ).

thf(445,plain,
    ! [SV29: $i] :
      ( ( ~ ! [SY2136: $i] :
              ( ~ ( subset @ SY2136 @ ( sK4_B @ SV29 ) )
              | ( are_equipotent @ SY2136 @ ( sK4_B @ SV29 ) )
              | ( in @ SY2136 @ ( sK4_B @ SV29 ) ) )
        | ~ ~ ( ~ ! [SY2137: $i] :
                    ( ~ ( ~ ! [SY2138: $i] :
                              ( ~ ( subset @ SY2138 @ SY2137 )
                              | ( in @ SY2138 @ ( sK5_SY2040 @ SY2137 @ SV29 ) ) )
                        | ~ ( in @ ( sK5_SY2040 @ SY2137 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
                    | ~ ( in @ SY2137 @ ( sK4_B @ SV29 ) ) )
              | ~ ~ ( ~ ! [SY2139: $i,SY2140: $i] :
                          ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
                          | ~ ( subset @ SY2140 @ SY2139 )
                          | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) )
                    | ~ ( in @ SV29 @ ( sK4_B @ SV29 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[388]) ).

thf(446,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[389]) ).

thf(447,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)],[389]) ).

thf(448,plain,
    ! [SV30: $i] :
      ( ( ( ~ ( relation @ SV30 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2141: $i] :
                    ( ~ ( ~ ( ! [SY2142: $i] :
                                ~ ( in @ ( ordered_pair @ SY2142 @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                            | ~ ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2141 @ SV30 ) @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                            | ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) ) )
                    | ( SY2141
                      = ( relation_rng @ SV30 ) ) )
              | ~ ! [SY2143: $i] :
                    ( ( SY2143
                     != ( relation_rng @ SV30 ) )
                    | ~ ( ~ ! [SY2144: $i] :
                              ( ! [SY2145: $i] :
                                  ~ ( in @ ( ordered_pair @ SY2145 @ SY2144 ) @ SV30 )
                              | ( in @ SY2144 @ SY2143 ) )
                        | ~ ! [SY2146: $i] :
                              ( ~ ( in @ SY2146 @ SY2143 )
                              | ( in @ ( ordered_pair @ ( sK9_D @ SY2146 @ SY2143 @ SV30 ) @ SY2146 ) @ SV30 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[390]) ).

thf(449,plain,
    ! [SV31: $i,SV61: $i] :
      ( ( ~ ( ~ ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV31 )
            | ~ ~ ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV61 ) )
        | ( element @ SV31 @ ( powerset @ SV61 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[391]) ).

thf(450,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[392]) ).

thf(451,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[392]) ).

thf(452,plain,
    ! [SV32: $i] :
      ( ( ~ ! [SY2148: $i,SY2149: $i] :
              ( ~ ( in @ SV32 @ SY2149 )
              | ~ ( in @ SY2148 @ SY2149 )
              | ( subset @ ( unordered_pair @ SV32 @ SY2148 ) @ SY2149 ) )
        | ~ ~ ( ~ ! [SY2150: $i,SY2151: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2150 ) @ SY2151 )
                    | ( in @ SV32 @ SY2151 ) )
              | ~ ! [SY2152: $i,SY2153: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2152 ) @ SY2153 )
                    | ( in @ SY2152 @ SY2153 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[393]) ).

thf(453,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK31_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)],[394]) ).

thf(454,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)],[394]) ).

thf(455,plain,
    ! [SV33: $i] :
      ( ( ( ~ ( relation @ SV33 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2154: $i] :
                    ( ~ ( ~ ( ! [SY2155: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ SY2155 ) @ SV33 )
                            | ~ ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ ( sK18_SY2050 @ SY2154 @ SV33 ) ) @ SV33 )
                            | ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) ) )
                    | ( SY2154
                      = ( relation_dom @ SV33 ) ) )
              | ~ ! [SY2156: $i] :
                    ( ( SY2156
                     != ( relation_dom @ SV33 ) )
                    | ~ ( ~ ! [SY2157: $i] :
                              ( ! [SY2158: $i] :
                                  ~ ( in @ ( ordered_pair @ SY2157 @ SY2158 ) @ SV33 )
                              | ( in @ SY2157 @ SY2156 ) )
                        | ~ ! [SY2159: $i] :
                              ( ~ ( in @ SY2159 @ SY2156 )
                              | ( in @ ( ordered_pair @ SY2159 @ ( sK16_D @ SY2159 @ SY2156 @ SV33 ) ) @ SV33 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[395]) ).

thf(456,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[396]) ).

thf(457,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[396]) ).

thf(458,plain,
    ! [SV34: $i] :
      ( ( ~ ! [SY2160: $i] :
              ( ~ ( subset @ SY2160 @ ( sK39_B @ SV34 ) )
              | ( are_equipotent @ SY2160 @ ( sK39_B @ SV34 ) )
              | ( in @ SY2160 @ ( sK39_B @ SV34 ) ) )
        | ~ ~ ( ~ ! [SY2161: $i] :
                    ( ~ ( in @ SY2161 @ ( sK39_B @ SV34 ) )
                    | ( in @ ( powerset @ SY2161 ) @ ( sK39_B @ SV34 ) ) )
              | ~ ~ ( ~ ! [SY2162: $i,SY2163: $i] :
                          ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
                          | ~ ( subset @ SY2163 @ SY2162 )
                          | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) )
                    | ~ ( in @ SV34 @ ( sK39_B @ SV34 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[397]) ).

thf(459,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK30_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK30_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[398]) ).

thf(460,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)],[398]) ).

thf(461,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
                | ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) )
            | ~ ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
                | ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) ) )
        | ( SV35 = SV62 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[399]) ).

thf(462,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ~ ( ~ ! [SY2207: $i,SY2208: $i] :
                  ( ~ ( in @ SV36 @ SY2207 )
                  | ~ ( in @ SV63 @ SY2208 )
                  | ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2207 @ SY2208 ) ) )
            | ~ ~ ( ~ ! [SY2209: $i] :
                        ( ! [SY2210: $i] :
                            ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2209 @ SY2210 ) )
                        | ( in @ SV36 @ SY2209 ) )
                  | ~ ! [SY2211: $i,SY2212: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2211 @ SY2212 ) )
                        | ( in @ SV63 @ SY2212 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[400]) ).

thf(463,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK36_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK36_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[401]) ).

thf(464,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK34_C @ SX1 @ SX0 ) @ ( sK35_SY2059 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[401]) ).

thf(465,plain,
    ! [SV37: $i] :
      ( ( ( ~ ( relation @ SV37 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2172: $i] :
                    ( ~ ( relation @ SY2172 )
                    | ~ ( subset @ SV37 @ SY2172 )
                    | ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SY2172 ) ) )
              | ~ ! [SY2173: $i] :
                    ( ~ ( relation @ SY2173 )
                    | ~ ( subset @ SV37 @ SY2173 )
                    | ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SY2173 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[402]) ).

thf(466,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[403]) ).

thf(467,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[403]) ).

thf(468,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[404]) ).

thf(469,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[404]) ).

thf(470,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK29_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[405]) ).

thf(471,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[405]) ).

thf(472,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)],[406]) ).

thf(473,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)],[406]) ).

thf(474,plain,
    ! [SV38: $i] :
      ( ( ~ ! [SY2174: $i,SY2175: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SV38 )
                      | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2174 )
                      | ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SV38 )
                            | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) )
                        | ~ ( ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2174 )
                            | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) ) ) )
              | ( SY2175
                = ( set_difference @ SV38 @ SY2174 ) ) )
        | ~ ! [SY2176: $i,SY2177: $i] :
              ( ( SY2177
               != ( set_difference @ SV38 @ SY2176 ) )
              | ~ ( ~ ! [SY2178: $i] :
                        ( ~ ( in @ SY2178 @ SV38 )
                        | ( in @ SY2178 @ SY2176 )
                        | ( in @ SY2178 @ SY2177 ) )
                  | ~ ~ ( ~ ! [SY2179: $i] :
                              ( ~ ( in @ SY2179 @ SY2177 )
                              | ( in @ SY2179 @ SV38 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2177 )
                              | ~ ( in @ SX3 @ SY2176 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[407]) ).

thf(475,plain,
    ! [SV39: $i] :
      ( ( ~ ! [SY2181: $i,SY2182: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SV39 )
                      | ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2181 )
                      | ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SV39 )
                            | ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) )
                        | ~ ( ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2181 )
                            | ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) ) ) )
              | ( SY2182
                = ( set_intersection2 @ SV39 @ SY2181 ) ) )
        | ~ ! [SY2183: $i,SY2184: $i] :
              ( ( SY2184
               != ( set_intersection2 @ SV39 @ SY2183 ) )
              | ~ ( ~ ! [SY2185: $i] :
                        ( ~ ( in @ SY2185 @ SV39 )
                        | ~ ( in @ SY2185 @ SY2183 )
                        | ( in @ SY2185 @ SY2184 ) )
                  | ~ ~ ( ~ ! [SY2186: $i] :
                              ( ~ ( in @ SY2186 @ SY2184 )
                              | ( in @ SY2186 @ SV39 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2184 )
                              | ( in @ SX3 @ SY2183 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[408]) ).

thf(476,plain,
    ! [SV40: $i,SV1: $i] :
      ( ( ( ~ ( in @ SV1 @ SV40 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV1 ) @ SV40 )
          = SV40 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[409]) ).

thf(477,plain,
    ! [SV41: $i,SV2: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV2 ) @ SV41 ) )
        = $true )
      | ( ( ~ ( in @ SV2 @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[410]) ).

thf(478,plain,
    ! [SV42: $i,SV3: $i] :
      ( ( ( in @ SV3 @ SV42 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV3 ) @ SV42 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[411]) ).

thf(479,plain,
    ! [SV4: $i,SV43: $i] :
      ( ( ( ~ ( element @ SV43 @ ( powerset @ SV4 ) ) )
        = $true )
      | ( ( ! [SY2188: $i] :
              ( ~ ( in @ SY2188 @ SV43 )
              | ( in @ SY2188 @ SV4 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[412]) ).

thf(480,plain,
    ! [SV44: $i,SV5: $i] :
      ( ( ( ~ ( subset @ SV5 @ SV44 ) )
        = $true )
      | ( ( ! [SY2189: $i] :
              ( ( in @ SY2189 @ SV5 )
              | ( subset @ SV5 @ ( set_difference @ SV44 @ ( singleton @ SY2189 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[413]) ).

thf(481,plain,
    ! [SV45: $i,SV6: $i] :
      ( ( ( ~ ( in @ SV6 @ SV45 ) )
        = $true )
      | ( ( subset @ SV6 @ ( union @ SV45 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[414]) ).

thf(482,plain,
    ! [SV7: $i] :
      ( ( ( relation @ SV7 )
        = $false )
      | ( ( subset @ SV7 @ ( cartesian_product2 @ ( relation_dom @ SV7 ) @ ( relation_rng @ SV7 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[415]) ).

thf(483,plain,
    ! [SV46: $i,SV8: $i] :
      ( ( ( ~ ( in @ SV8 @ SV46 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV8 ) @ SV46 )
          = SV46 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[416]) ).

thf(484,plain,
    ! [SV9: $i,SV64: $i] :
      ( ( ( ~ ( element @ SV64 @ ( powerset @ SV9 ) )
          | ! [SY2213: $i] :
              ( ~ ( element @ SY2213 @ SV9 )
              | ( in @ SY2213 @ SV64 )
              | ( in @ SY2213 @ ( subset_complement @ SV9 @ SV64 ) ) ) )
        = $true )
      | ( ( SV9 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[417]) ).

thf(485,plain,
    ! [SV47: $i,SV10: $i,SV65: $i] :
      ( ( ~ ( element @ SV65 @ ( powerset @ SV10 ) )
        | ~ ( in @ SV47 @ ( subset_complement @ SV10 @ SV65 ) )
        | ~ ( in @ SV47 @ SV65 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[418]) ).

thf(486,plain,
    ! [SV48: $i,SV11: $i] :
      ( ( ( ~ ( in @ SV11 @ SV48 ) )
        = $true )
      | ( ( subset @ SV11 @ ( union @ SV48 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[419]) ).

thf(487,plain,
    ! [SV49: $i,SV12: $i] :
      ( ( ( ~ ( in @ SV12 @ SV49 ) )
        = $true )
      | ( ( ~ ( in @ SV49 @ SV12 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[420]) ).

thf(488,plain,
    ! [SV14: $i] :
      ( ( ( relation @ SV14 )
        = $false )
      | ( ( ( relation_field @ SV14 )
          = ( set_union2 @ ( relation_dom @ SV14 ) @ ( relation_rng @ SV14 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[422]) ).

thf(489,plain,
    ! [SV51: $i,SV15: $i] :
      ( ( empty @ ( ordered_pair @ SV15 @ SV51 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[423]) ).

thf(490,plain,
    ! [SV52: $i,SV16: $i] :
      ( ( ( ~ ( relation @ SV16 )
          | ~ ( relation @ SV52 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV16 @ SV52 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[424]) ).

thf(491,plain,
    ! [SV53: $i,SV17: $i] :
      ( ( ( ~ ( in @ SV17 @ SV53 ) )
        = $true )
      | ( ( element @ SV17 @ SV53 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[425]) ).

thf(492,plain,
    ! [SV54: $i,SV18: $i] :
      ( ( ( ~ ( element @ SV18 @ SV54 ) )
        = $true )
      | ( ( ( empty @ SV54 )
          | ( in @ SV18 @ SV54 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[426]) ).

thf(493,plain,
    ! [SV19: $i,SV66: $i,SV55: $i] :
      ( ( ~ ( element @ SV55 @ ( powerset @ SV66 ) )
        | ~ ( in @ SV19 @ SV55 )
        | ( element @ SV19 @ SV66 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[427]) ).

thf(494,plain,
    ! [SV20: $i,SV67: $i,SV56: $i] :
      ( ( ~ ( element @ SV56 @ ( powerset @ SV67 ) )
        | ~ ( in @ SV20 @ SV56 )
        | ~ ( empty @ SV67 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[428]) ).

thf(495,plain,
    ! [SV21: $i,SV57: $i] :
      ( ( ( ~ ( empty @ SV57 ) )
        = $true )
      | ( ( ~ ( in @ SV21 @ SV57 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[429]) ).

thf(496,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[430]) ).

thf(497,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[431]) ).

thf(498,plain,
    ! [SV22: $i] :
      ( ( ~ ! [SY2091: $i,SY2092: $i] :
              ( ~ ( relation @ SY2092 )
              | ~ ( in @ ( ordered_pair @ SV22 @ SY2091 ) @ SY2092 )
              | ( in @ SV22 @ ( relation_dom @ SY2092 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[432]) ).

thf(499,plain,
    ! [SV22: $i] :
      ( ( ~ ! [SY2093: $i,SY2094: $i] :
              ( ~ ( relation @ SY2094 )
              | ~ ( in @ ( ordered_pair @ SV22 @ SY2093 ) @ SY2094 )
              | ( in @ SY2093 @ ( relation_rng @ SY2094 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[432]) ).

thf(500,plain,
    ! [SV23: $i] :
      ( ( ~ ! [SY2095: $i,SY2096: $i] :
              ( ~ ( ~ ( ! [SY2097: $i,SY2098: $i] :
                          ( ~ ( in @ SY2097 @ SV23 )
                          | ~ ( in @ SY2098 @ SY2095 )
                          | ( ( sK23_D @ SY2096 @ SY2095 @ SV23 )
                           != ( ordered_pair @ SY2097 @ SY2098 ) ) )
                      | ~ ( in @ ( sK23_D @ SY2096 @ SY2095 @ SV23 ) @ SY2096 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2096 @ SY2095 @ SV23 ) @ SV23 )
                                | ~ ( in @ ( sK25_SY2056 @ SY2096 @ SY2095 @ SV23 ) @ SY2095 ) )
                          | ( ( sK23_D @ SY2096 @ SY2095 @ SV23 )
                           != ( ordered_pair @ ( sK24_SY2054 @ SY2096 @ SY2095 @ SV23 ) @ ( sK25_SY2056 @ SY2096 @ SY2095 @ SV23 ) ) ) )
                      | ( in @ ( sK23_D @ SY2096 @ SY2095 @ SV23 ) @ SY2096 ) ) )
              | ( SY2096
                = ( cartesian_product2 @ SV23 @ SY2095 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[433]) ).

thf(501,plain,
    ! [SV23: $i] :
      ( ( ~ ! [SY2099: $i,SY2100: $i] :
              ( ( SY2100
               != ( cartesian_product2 @ SV23 @ SY2099 ) )
              | ~ ( ~ ! [SY2101: $i] :
                        ( ! [SY2102: $i,SY2103: $i] :
                            ( ~ ( in @ SY2102 @ SV23 )
                            | ~ ( in @ SY2103 @ SY2099 )
                            | ( SY2101
                             != ( ordered_pair @ SY2102 @ SY2103 ) ) )
                        | ( in @ SY2101 @ SY2100 ) )
                  | ~ ! [SY2104: $i] :
                        ( ~ ( in @ SY2104 @ SY2100 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ SV23 )
                                  | ~ ( in @ ( sK22_SY2051 @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ SY2099 ) )
                            | ( SY2104
                             != ( ordered_pair @ ( sK21_E @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ ( sK22_SY2051 @ SY2104 @ SY2100 @ SY2099 @ SV23 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[433]) ).

thf(502,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ! [SX2: $i] :
                      ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX2 )
                      | ~ ( in @ SX2 @ SX0 ) )
                  | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( sK15_SY2048 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK15_SY2048 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[434]) ).

thf(503,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 @ ( sK13_D @ SX2 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[435]) ).

thf(504,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[436]) ).

thf(505,plain,
    ( ( relation @ sK7_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[437]) ).

thf(506,plain,
    ! [SV24: $i] :
      ( ( ~ ! [SY2105: $i,SY2106: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                            | ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SV24 ) )
                        | ~ ( ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                            | ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2105 ) ) )
                  | ~ ( ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                      | ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SV24 )
                      | ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2105 ) ) )
              | ( SY2106
                = ( set_union2 @ SV24 @ SY2105 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[438]) ).

thf(507,plain,
    ! [SV24: $i] :
      ( ( ~ ! [SY2107: $i,SY2108: $i] :
              ( ( SY2108
               != ( set_union2 @ SV24 @ SY2107 ) )
              | ~ ( ~ ! [SY2109: $i] :
                        ( ~ ( in @ SY2109 @ SY2108 )
                        | ( in @ SY2109 @ SV24 )
                        | ( in @ SY2109 @ SY2107 ) )
                  | ~ ~ ( ~ ! [SY2110: $i] :
                              ( ~ ( in @ SY2110 @ SV24 )
                              | ( in @ SY2110 @ SY2108 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2107 )
                              | ( in @ SX3 @ SY2108 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[438]) ).

thf(508,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[439]) ).

thf(509,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[440]) ).

thf(510,plain,
    ! [SV25: $i,SV58: $i] :
      ( ( ( ~ ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2193: $i] :
                    ( ~ ( element @ SY2193 @ ( powerset @ ( powerset @ SV25 ) ) )
                    | ~ ( ~ ( element @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
                        | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                                  | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) )
                              | ~ ( ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                                  | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
                    | ( SY2193
                      = ( complements_of_subsets @ SV25 @ SV58 ) ) )
              | ~ ! [SY2194: $i] :
                    ( ~ ( element @ SY2194 @ ( powerset @ ( powerset @ SV25 ) ) )
                    | ( SY2194
                     != ( complements_of_subsets @ SV25 @ SV58 ) )
                    | ~ ( ~ ! [SY2195: $i] :
                              ( ~ ( element @ SY2195 @ ( powerset @ SV25 ) )
                              | ~ ( in @ SY2195 @ SY2194 )
                              | ( in @ ( subset_complement @ SV25 @ SY2195 ) @ SV58 ) )
                        | ~ ! [SY2196: $i] :
                              ( ~ ( element @ SY2196 @ ( powerset @ SV25 ) )
                              | ~ ( in @ ( subset_complement @ SV25 @ SY2196 ) @ SV58 )
                              | ( in @ SY2196 @ SY2194 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[441]) ).

thf(511,plain,
    ! [SV26: $i] :
      ( ( ~ ! [SY2117: $i,SY2118: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                            | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                             != SV26 ) )
                        | ~ ( ~ ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                            | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                             != SY2117 ) ) )
                  | ~ ( ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                      | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                        = SV26 )
                      | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                        = SY2117 ) ) )
              | ( SY2118
                = ( unordered_pair @ SV26 @ SY2117 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[442]) ).

thf(512,plain,
    ! [SV26: $i] :
      ( ( ~ ! [SY2119: $i,SY2120: $i] :
              ( ( SY2120
               != ( unordered_pair @ SV26 @ SY2119 ) )
              | ~ ( ~ ! [SY2121: $i] :
                        ( ~ ( in @ SY2121 @ SY2120 )
                        | ( SY2121 = SV26 )
                        | ( SY2121 = SY2119 ) )
                  | ~ ~ ( ~ ! [SY2122: $i] :
                              ( ( SY2122 != SV26 )
                              | ( in @ SY2122 @ SY2120 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY2119 )
                              | ( in @ SX3 @ SY2120 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[442]) ).

thf(513,plain,
    ! [SV59: $i,SV27: $i] :
      ( ( ~ ! [SY2197: $i] :
              ( ! [SY2198: $i] :
                  ( ( ordered_pair @ SV27 @ SV59 )
                 != ( ordered_pair @ SY2197 @ SY2198 ) )
              | ( SV27 = SY2197 ) )
        | ~ ! [SY2199: $i,SY2200: $i] :
              ( ( ( ordered_pair @ SV27 @ SV59 )
               != ( ordered_pair @ SY2199 @ SY2200 ) )
              | ( SV59 = SY2200 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[443]) ).

thf(514,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ~ ! [SY2201: $i,SY2202: $i] :
              ( ~ ( in @ SV28 @ SY2201 )
              | ~ ( in @ SV60 @ SY2202 )
              | ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2201 @ SY2202 ) ) )
        | ~ ~ ( ~ ! [SY2203: $i] :
                    ( ! [SY2204: $i] :
                        ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2203 @ SY2204 ) )
                    | ( in @ SV28 @ SY2203 ) )
              | ~ ! [SY2205: $i,SY2206: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2205 @ SY2206 ) )
                    | ( in @ SV60 @ SY2206 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[444]) ).

thf(515,plain,
    ! [SV29: $i] :
      ( ( ~ ! [SY2136: $i] :
              ( ~ ( subset @ SY2136 @ ( sK4_B @ SV29 ) )
              | ( are_equipotent @ SY2136 @ ( sK4_B @ SV29 ) )
              | ( in @ SY2136 @ ( sK4_B @ SV29 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[445]) ).

thf(516,plain,
    ! [SV29: $i] :
      ( ( ~ ~ ( ~ ! [SY2137: $i] :
                    ( ~ ( ~ ! [SY2138: $i] :
                              ( ~ ( subset @ SY2138 @ SY2137 )
                              | ( in @ SY2138 @ ( sK5_SY2040 @ SY2137 @ SV29 ) ) )
                        | ~ ( in @ ( sK5_SY2040 @ SY2137 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
                    | ~ ( in @ SY2137 @ ( sK4_B @ SV29 ) ) )
              | ~ ~ ( ~ ! [SY2139: $i,SY2140: $i] :
                          ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
                          | ~ ( subset @ SY2140 @ SY2139 )
                          | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) )
                    | ~ ( in @ SV29 @ ( sK4_B @ SV29 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[445]) ).

thf(517,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[446]) ).

thf(518,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)],[447]) ).

thf(519,plain,
    ! [SV30: $i] :
      ( ( ( relation @ SV30 )
        = $false )
      | ( ( ~ ( ~ ! [SY2141: $i] :
                    ( ~ ( ~ ( ! [SY2142: $i] :
                                ~ ( in @ ( ordered_pair @ SY2142 @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                            | ~ ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2141 @ SV30 ) @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                            | ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) ) )
                    | ( SY2141
                      = ( relation_rng @ SV30 ) ) )
              | ~ ! [SY2143: $i] :
                    ( ( SY2143
                     != ( relation_rng @ SV30 ) )
                    | ~ ( ~ ! [SY2144: $i] :
                              ( ! [SY2145: $i] :
                                  ~ ( in @ ( ordered_pair @ SY2145 @ SY2144 ) @ SV30 )
                              | ( in @ SY2144 @ SY2143 ) )
                        | ~ ! [SY2146: $i] :
                              ( ~ ( in @ SY2146 @ SY2143 )
                              | ( in @ ( ordered_pair @ ( sK9_D @ SY2146 @ SY2143 @ SV30 ) @ SY2146 ) @ SV30 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[448]) ).

thf(520,plain,
    ! [SV31: $i,SV61: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV31 )
              | ~ ~ ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV61 ) ) )
        = $true )
      | ( ( element @ SV31 @ ( powerset @ SV61 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[449]) ).

thf(521,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[450]) ).

thf(522,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[451]) ).

thf(523,plain,
    ! [SV32: $i] :
      ( ( ~ ! [SY2148: $i,SY2149: $i] :
              ( ~ ( in @ SV32 @ SY2149 )
              | ~ ( in @ SY2148 @ SY2149 )
              | ( subset @ ( unordered_pair @ SV32 @ SY2148 ) @ SY2149 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[452]) ).

thf(524,plain,
    ! [SV32: $i] :
      ( ( ~ ~ ( ~ ! [SY2150: $i,SY2151: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2150 ) @ SY2151 )
                    | ( in @ SV32 @ SY2151 ) )
              | ~ ! [SY2152: $i,SY2153: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2152 ) @ SY2153 )
                    | ( in @ SY2152 @ SY2153 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[452]) ).

thf(525,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                                | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX0 )
                                | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                            | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ SX2 @ ( sK31_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)],[453]) ).

thf(526,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)],[454]) ).

thf(527,plain,
    ! [SV33: $i] :
      ( ( ( relation @ SV33 )
        = $false )
      | ( ( ~ ( ~ ! [SY2154: $i] :
                    ( ~ ( ~ ( ! [SY2155: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ SY2155 ) @ SV33 )
                            | ~ ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ ( sK18_SY2050 @ SY2154 @ SV33 ) ) @ SV33 )
                            | ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) ) )
                    | ( SY2154
                      = ( relation_dom @ SV33 ) ) )
              | ~ ! [SY2156: $i] :
                    ( ( SY2156
                     != ( relation_dom @ SV33 ) )
                    | ~ ( ~ ! [SY2157: $i] :
                              ( ! [SY2158: $i] :
                                  ~ ( in @ ( ordered_pair @ SY2157 @ SY2158 ) @ SV33 )
                              | ( in @ SY2157 @ SY2156 ) )
                        | ~ ! [SY2159: $i] :
                              ( ~ ( in @ SY2159 @ SY2156 )
                              | ( in @ ( ordered_pair @ SY2159 @ ( sK16_D @ SY2159 @ SY2156 @ SV33 ) ) @ SV33 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[455]) ).

thf(528,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[456]) ).

thf(529,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[457]) ).

thf(530,plain,
    ! [SV34: $i] :
      ( ( ~ ! [SY2160: $i] :
              ( ~ ( subset @ SY2160 @ ( sK39_B @ SV34 ) )
              | ( are_equipotent @ SY2160 @ ( sK39_B @ SV34 ) )
              | ( in @ SY2160 @ ( sK39_B @ SV34 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[458]) ).

thf(531,plain,
    ! [SV34: $i] :
      ( ( ~ ~ ( ~ ! [SY2161: $i] :
                    ( ~ ( in @ SY2161 @ ( sK39_B @ SV34 ) )
                    | ( in @ ( powerset @ SY2161 ) @ ( sK39_B @ SV34 ) ) )
              | ~ ~ ( ~ ! [SY2162: $i,SY2163: $i] :
                          ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
                          | ~ ( subset @ SY2163 @ SY2162 )
                          | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) )
                    | ~ ( in @ SV34 @ ( sK39_B @ SV34 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[458]) ).

thf(532,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK30_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK30_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[459]) ).

thf(533,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)],[460]) ).

thf(534,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
                  | ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) )
              | ~ ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
                  | ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) ) ) )
        = $true )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[461]) ).

thf(535,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ~ ! [SY2207: $i,SY2208: $i] :
              ( ~ ( in @ SV36 @ SY2207 )
              | ~ ( in @ SV63 @ SY2208 )
              | ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2207 @ SY2208 ) ) )
        | ~ ~ ( ~ ! [SY2209: $i] :
                    ( ! [SY2210: $i] :
                        ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2209 @ SY2210 ) )
                    | ( in @ SV36 @ SY2209 ) )
              | ~ ! [SY2211: $i,SY2212: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2211 @ SY2212 ) )
                    | ( in @ SV63 @ SY2212 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[462]) ).

thf(536,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                    ( ( sK36_B @ SX0 )
                   != ( ordered_pair @ SX1 @ SX2 ) )
              | ~ ( in @ ( sK36_B @ SX0 ) @ SX0 ) )
          | ( relation @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[463]) ).

thf(537,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ( SX1
                = ( ordered_pair @ ( sK34_C @ SX1 @ SX0 ) @ ( sK35_SY2059 @ SX1 @ SX0 ) ) )
              | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[464]) ).

thf(538,plain,
    ! [SV37: $i] :
      ( ( ( relation @ SV37 )
        = $false )
      | ( ( ~ ( ~ ! [SY2172: $i] :
                    ( ~ ( relation @ SY2172 )
                    | ~ ( subset @ SV37 @ SY2172 )
                    | ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SY2172 ) ) )
              | ~ ! [SY2173: $i] :
                    ( ~ ( relation @ SY2173 )
                    | ~ ( subset @ SV37 @ SY2173 )
                    | ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SY2173 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[465]) ).

thf(539,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[466]) ).

thf(540,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[467]) ).

thf(541,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[468]) ).

thf(542,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[469]) ).

thf(543,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK29_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[470]) ).

thf(544,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[471]) ).

thf(545,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)],[472]) ).

thf(546,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)],[473]) ).

thf(547,plain,
    ! [SV38: $i] :
      ( ( ~ ! [SY2174: $i,SY2175: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SV38 )
                      | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2174 )
                      | ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SV38 )
                            | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) )
                        | ~ ( ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2174 )
                            | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) ) ) )
              | ( SY2175
                = ( set_difference @ SV38 @ SY2174 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[474]) ).

thf(548,plain,
    ! [SV38: $i] :
      ( ( ~ ! [SY2176: $i,SY2177: $i] :
              ( ( SY2177
               != ( set_difference @ SV38 @ SY2176 ) )
              | ~ ( ~ ! [SY2178: $i] :
                        ( ~ ( in @ SY2178 @ SV38 )
                        | ( in @ SY2178 @ SY2176 )
                        | ( in @ SY2178 @ SY2177 ) )
                  | ~ ~ ( ~ ! [SY2179: $i] :
                              ( ~ ( in @ SY2179 @ SY2177 )
                              | ( in @ SY2179 @ SV38 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2177 )
                              | ~ ( in @ SX3 @ SY2176 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[474]) ).

thf(549,plain,
    ! [SV39: $i] :
      ( ( ~ ! [SY2181: $i,SY2182: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SV39 )
                      | ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2181 )
                      | ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SV39 )
                            | ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) )
                        | ~ ( ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2181 )
                            | ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) ) ) )
              | ( SY2182
                = ( set_intersection2 @ SV39 @ SY2181 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[475]) ).

thf(550,plain,
    ! [SV39: $i] :
      ( ( ~ ! [SY2183: $i,SY2184: $i] :
              ( ( SY2184
               != ( set_intersection2 @ SV39 @ SY2183 ) )
              | ~ ( ~ ! [SY2185: $i] :
                        ( ~ ( in @ SY2185 @ SV39 )
                        | ~ ( in @ SY2185 @ SY2183 )
                        | ( in @ SY2185 @ SY2184 ) )
                  | ~ ~ ( ~ ! [SY2186: $i] :
                              ( ~ ( in @ SY2186 @ SY2184 )
                              | ( in @ SY2186 @ SV39 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2184 )
                              | ( in @ SX3 @ SY2183 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[475]) ).

thf(551,plain,
    ! [SV40: $i,SV1: $i] :
      ( ( ( in @ SV1 @ SV40 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV1 ) @ SV40 )
          = SV40 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[476]) ).

thf(552,plain,
    ! [SV41: $i,SV2: $i] :
      ( ( ( disjoint @ ( singleton @ SV2 ) @ SV41 )
        = $false )
      | ( ( ~ ( in @ SV2 @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[477]) ).

thf(553,plain,
    ! [SV4: $i,SV43: $i] :
      ( ( ( element @ SV43 @ ( powerset @ SV4 ) )
        = $false )
      | ( ( ! [SY2188: $i] :
              ( ~ ( in @ SY2188 @ SV43 )
              | ( in @ SY2188 @ SV4 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[479]) ).

thf(554,plain,
    ! [SV44: $i,SV5: $i] :
      ( ( ( subset @ SV5 @ SV44 )
        = $false )
      | ( ( ! [SY2189: $i] :
              ( ( in @ SY2189 @ SV5 )
              | ( subset @ SV5 @ ( set_difference @ SV44 @ ( singleton @ SY2189 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[480]) ).

thf(555,plain,
    ! [SV45: $i,SV6: $i] :
      ( ( ( in @ SV6 @ SV45 )
        = $false )
      | ( ( subset @ SV6 @ ( union @ SV45 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[481]) ).

thf(556,plain,
    ! [SV46: $i,SV8: $i] :
      ( ( ( in @ SV8 @ SV46 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV8 ) @ SV46 )
          = SV46 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[483]) ).

thf(557,plain,
    ! [SV9: $i,SV64: $i] :
      ( ( ( ~ ( element @ SV64 @ ( powerset @ SV9 ) ) )
        = $true )
      | ( ( ! [SY2213: $i] :
              ( ~ ( element @ SY2213 @ SV9 )
              | ( in @ SY2213 @ SV64 )
              | ( in @ SY2213 @ ( subset_complement @ SV9 @ SV64 ) ) ) )
        = $true )
      | ( ( SV9 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[484]) ).

thf(558,plain,
    ! [SV47: $i,SV10: $i,SV65: $i] :
      ( ( ( ~ ( element @ SV65 @ ( powerset @ SV10 ) ) )
        = $true )
      | ( ( ~ ( in @ SV47 @ ( subset_complement @ SV10 @ SV65 ) )
          | ~ ( in @ SV47 @ SV65 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[485]) ).

thf(559,plain,
    ! [SV48: $i,SV11: $i] :
      ( ( ( in @ SV11 @ SV48 )
        = $false )
      | ( ( subset @ SV11 @ ( union @ SV48 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[486]) ).

thf(560,plain,
    ! [SV49: $i,SV12: $i] :
      ( ( ( in @ SV12 @ SV49 )
        = $false )
      | ( ( ~ ( in @ SV49 @ SV12 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[487]) ).

thf(561,plain,
    ! [SV52: $i,SV16: $i] :
      ( ( ( ~ ( relation @ SV16 ) )
        = $true )
      | ( ( ~ ( relation @ SV52 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV16 @ SV52 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[490]) ).

thf(562,plain,
    ! [SV53: $i,SV17: $i] :
      ( ( ( in @ SV17 @ SV53 )
        = $false )
      | ( ( element @ SV17 @ SV53 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[491]) ).

thf(563,plain,
    ! [SV54: $i,SV18: $i] :
      ( ( ( element @ SV18 @ SV54 )
        = $false )
      | ( ( ( empty @ SV54 )
          | ( in @ SV18 @ SV54 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[492]) ).

thf(564,plain,
    ! [SV19: $i,SV66: $i,SV55: $i] :
      ( ( ( ~ ( element @ SV55 @ ( powerset @ SV66 ) )
          | ~ ( in @ SV19 @ SV55 ) )
        = $true )
      | ( ( element @ SV19 @ SV66 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[493]) ).

thf(565,plain,
    ! [SV20: $i,SV67: $i,SV56: $i] :
      ( ( ( ~ ( element @ SV56 @ ( powerset @ SV67 ) )
          | ~ ( in @ SV20 @ SV56 ) )
        = $true )
      | ( ( ~ ( empty @ SV67 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[494]) ).

thf(566,plain,
    ! [SV21: $i,SV57: $i] :
      ( ( ( empty @ SV57 )
        = $false )
      | ( ( ~ ( in @ SV21 @ SV57 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[495]) ).

thf(567,plain,
    ! [SV68: $i] :
      ( ( ! [SY2214: $i] :
            ( ~ ( in @ SV68 @ SY2214 )
            | ( subset @ ( singleton @ SV68 ) @ SY2214 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[496]) ).

thf(568,plain,
    ! [SV69: $i] :
      ( ( ! [SY2215: $i] :
            ( ~ ( subset @ ( singleton @ SV69 ) @ SY2215 )
            | ( in @ SV69 @ SY2215 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[497]) ).

thf(569,plain,
    ! [SV22: $i] :
      ( ( ! [SY2091: $i,SY2092: $i] :
            ( ~ ( relation @ SY2092 )
            | ~ ( in @ ( ordered_pair @ SV22 @ SY2091 ) @ SY2092 )
            | ( in @ SV22 @ ( relation_dom @ SY2092 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[498]) ).

thf(570,plain,
    ! [SV22: $i] :
      ( ( ! [SY2093: $i,SY2094: $i] :
            ( ~ ( relation @ SY2094 )
            | ~ ( in @ ( ordered_pair @ SV22 @ SY2093 ) @ SY2094 )
            | ( in @ SY2093 @ ( relation_rng @ SY2094 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[499]) ).

thf(571,plain,
    ! [SV23: $i] :
      ( ( ! [SY2095: $i,SY2096: $i] :
            ( ~ ( ~ ( ! [SY2097: $i,SY2098: $i] :
                        ( ~ ( in @ SY2097 @ SV23 )
                        | ~ ( in @ SY2098 @ SY2095 )
                        | ( ( sK23_D @ SY2096 @ SY2095 @ SV23 )
                         != ( ordered_pair @ SY2097 @ SY2098 ) ) )
                    | ~ ( in @ ( sK23_D @ SY2096 @ SY2095 @ SV23 ) @ SY2096 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2096 @ SY2095 @ SV23 ) @ SV23 )
                              | ~ ( in @ ( sK25_SY2056 @ SY2096 @ SY2095 @ SV23 ) @ SY2095 ) )
                        | ( ( sK23_D @ SY2096 @ SY2095 @ SV23 )
                         != ( ordered_pair @ ( sK24_SY2054 @ SY2096 @ SY2095 @ SV23 ) @ ( sK25_SY2056 @ SY2096 @ SY2095 @ SV23 ) ) ) )
                    | ( in @ ( sK23_D @ SY2096 @ SY2095 @ SV23 ) @ SY2096 ) ) )
            | ( SY2096
              = ( cartesian_product2 @ SV23 @ SY2095 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[500]) ).

thf(572,plain,
    ! [SV23: $i] :
      ( ( ! [SY2099: $i,SY2100: $i] :
            ( ( SY2100
             != ( cartesian_product2 @ SV23 @ SY2099 ) )
            | ~ ( ~ ! [SY2101: $i] :
                      ( ! [SY2102: $i,SY2103: $i] :
                          ( ~ ( in @ SY2102 @ SV23 )
                          | ~ ( in @ SY2103 @ SY2099 )
                          | ( SY2101
                           != ( ordered_pair @ SY2102 @ SY2103 ) ) )
                      | ( in @ SY2101 @ SY2100 ) )
                | ~ ! [SY2104: $i] :
                      ( ~ ( in @ SY2104 @ SY2100 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ SV23 )
                                | ~ ( in @ ( sK22_SY2051 @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ SY2099 ) )
                          | ( SY2104
                           != ( ordered_pair @ ( sK21_E @ SY2104 @ SY2100 @ SY2099 @ SV23 ) @ ( sK22_SY2051 @ SY2104 @ SY2100 @ SY2099 @ SV23 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[501]) ).

thf(573,plain,
    ! [SV70: $i] :
      ( ( ! [SY2216: $i] :
            ( ~ ( ~ ( ! [SY2217: $i] :
                        ( ~ ( in @ ( sK14_C @ SY2216 @ SV70 ) @ SY2217 )
                        | ~ ( in @ SY2217 @ SV70 ) )
                    | ~ ( in @ ( sK14_C @ SY2216 @ SV70 ) @ SY2216 ) )
                | ~ ( ~ ( ~ ( in @ ( sK14_C @ SY2216 @ SV70 ) @ ( sK15_SY2048 @ SY2216 @ SV70 ) )
                        | ~ ( in @ ( sK15_SY2048 @ SY2216 @ SV70 ) @ SV70 ) )
                    | ( in @ ( sK14_C @ SY2216 @ SV70 ) @ SY2216 ) ) )
            | ( SY2216
              = ( union @ SV70 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[502]) ).

thf(574,plain,
    ! [SV71: $i] :
      ( ( ! [SY2218: $i] :
            ( ( SY2218
             != ( union @ SV71 ) )
            | ~ ( ~ ! [SY2219: $i] :
                      ( ! [SY2220: $i] :
                          ( ~ ( in @ SY2219 @ SY2220 )
                          | ~ ( in @ SY2220 @ SV71 ) )
                      | ( in @ SY2219 @ SY2218 ) )
                | ~ ! [SY2221: $i] :
                      ( ~ ( in @ SY2221 @ SY2218 )
                      | ~ ( ~ ( in @ SY2221 @ ( sK13_D @ SY2221 @ SY2218 @ SV71 ) )
                          | ~ ( in @ ( sK13_D @ SY2221 @ SY2218 @ SV71 ) @ SV71 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[503]) ).

thf(575,plain,
    ! [SV24: $i] :
      ( ( ! [SY2105: $i,SY2106: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                          | ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SV24 ) )
                      | ~ ( ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                          | ~ ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2105 ) ) )
                | ~ ( ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2106 )
                    | ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SV24 )
                    | ( in @ ( sK26_D @ SY2106 @ SY2105 @ SV24 ) @ SY2105 ) ) )
            | ( SY2106
              = ( set_union2 @ SV24 @ SY2105 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[506]) ).

thf(576,plain,
    ! [SV24: $i] :
      ( ( ! [SY2107: $i,SY2108: $i] :
            ( ( SY2108
             != ( set_union2 @ SV24 @ SY2107 ) )
            | ~ ( ~ ! [SY2109: $i] :
                      ( ~ ( in @ SY2109 @ SY2108 )
                      | ( in @ SY2109 @ SV24 )
                      | ( in @ SY2109 @ SY2107 ) )
                | ~ ~ ( ~ ! [SY2110: $i] :
                            ( ~ ( in @ SY2110 @ SV24 )
                            | ( in @ SY2110 @ SY2108 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY2107 )
                            | ( in @ SX3 @ SY2108 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[507]) ).

thf(577,plain,
    ! [SV72: $i] :
      ( ( ! [SY2222: $i] :
            ( ( disjoint @ SV72 @ SY2222 )
            | ~ ( ~ ( in @ ( sK38_C @ SY2222 @ SV72 ) @ SV72 )
                | ~ ( in @ ( sK38_C @ SY2222 @ SV72 ) @ SY2222 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[508]) ).

thf(578,plain,
    ! [SV73: $i] :
      ( ( ! [SY2223: $i] :
            ( ! [SY2224: $i] :
                ( ~ ( in @ SY2224 @ SV73 )
                | ~ ( in @ SY2224 @ SY2223 ) )
            | ~ ( disjoint @ SV73 @ SY2223 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[509]) ).

thf(579,plain,
    ! [SV25: $i,SV58: $i] :
      ( ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2193: $i] :
                    ( ~ ( element @ SY2193 @ ( powerset @ ( powerset @ SV25 ) ) )
                    | ~ ( ~ ( element @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
                        | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                                  | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) )
                              | ~ ( ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                                  | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
                    | ( SY2193
                      = ( complements_of_subsets @ SV25 @ SV58 ) ) )
              | ~ ! [SY2194: $i] :
                    ( ~ ( element @ SY2194 @ ( powerset @ ( powerset @ SV25 ) ) )
                    | ( SY2194
                     != ( complements_of_subsets @ SV25 @ SV58 ) )
                    | ~ ( ~ ! [SY2195: $i] :
                              ( ~ ( element @ SY2195 @ ( powerset @ SV25 ) )
                              | ~ ( in @ SY2195 @ SY2194 )
                              | ( in @ ( subset_complement @ SV25 @ SY2195 ) @ SV58 ) )
                        | ~ ! [SY2196: $i] :
                              ( ~ ( element @ SY2196 @ ( powerset @ SV25 ) )
                              | ~ ( in @ ( subset_complement @ SV25 @ SY2196 ) @ SV58 )
                              | ( in @ SY2196 @ SY2194 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[510]) ).

thf(580,plain,
    ! [SV26: $i] :
      ( ( ! [SY2117: $i,SY2118: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                          | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                           != SV26 ) )
                      | ~ ( ~ ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                          | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                           != SY2117 ) ) )
                | ~ ( ( in @ ( sK27_D @ SY2118 @ SY2117 @ SV26 ) @ SY2118 )
                    | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                      = SV26 )
                    | ( ( sK27_D @ SY2118 @ SY2117 @ SV26 )
                      = SY2117 ) ) )
            | ( SY2118
              = ( unordered_pair @ SV26 @ SY2117 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[511]) ).

thf(581,plain,
    ! [SV26: $i] :
      ( ( ! [SY2119: $i,SY2120: $i] :
            ( ( SY2120
             != ( unordered_pair @ SV26 @ SY2119 ) )
            | ~ ( ~ ! [SY2121: $i] :
                      ( ~ ( in @ SY2121 @ SY2120 )
                      | ( SY2121 = SV26 )
                      | ( SY2121 = SY2119 ) )
                | ~ ~ ( ~ ! [SY2122: $i] :
                            ( ( SY2122 != SV26 )
                            | ( in @ SY2122 @ SY2120 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY2119 )
                            | ( in @ SX3 @ SY2120 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[512]) ).

thf(582,plain,
    ! [SV59: $i,SV27: $i] :
      ( ( ~ ! [SY2197: $i] :
              ( ! [SY2198: $i] :
                  ( ( ordered_pair @ SV27 @ SV59 )
                 != ( ordered_pair @ SY2197 @ SY2198 ) )
              | ( SV27 = SY2197 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[513]) ).

thf(583,plain,
    ! [SV59: $i,SV27: $i] :
      ( ( ~ ! [SY2199: $i,SY2200: $i] :
              ( ( ( ordered_pair @ SV27 @ SV59 )
               != ( ordered_pair @ SY2199 @ SY2200 ) )
              | ( SV59 = SY2200 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[513]) ).

thf(584,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ~ ! [SY2201: $i,SY2202: $i] :
              ( ~ ( in @ SV28 @ SY2201 )
              | ~ ( in @ SV60 @ SY2202 )
              | ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2201 @ SY2202 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[514]) ).

thf(585,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ~ ~ ( ~ ! [SY2203: $i] :
                    ( ! [SY2204: $i] :
                        ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2203 @ SY2204 ) )
                    | ( in @ SV28 @ SY2203 ) )
              | ~ ! [SY2205: $i,SY2206: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2205 @ SY2206 ) )
                    | ( in @ SV60 @ SY2206 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[514]) ).

thf(586,plain,
    ! [SV29: $i] :
      ( ( ! [SY2136: $i] :
            ( ~ ( subset @ SY2136 @ ( sK4_B @ SV29 ) )
            | ( are_equipotent @ SY2136 @ ( sK4_B @ SV29 ) )
            | ( in @ SY2136 @ ( sK4_B @ SV29 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[515]) ).

thf(587,plain,
    ! [SV29: $i] :
      ( ( ~ ( ~ ! [SY2137: $i] :
                  ( ~ ( ~ ! [SY2138: $i] :
                            ( ~ ( subset @ SY2138 @ SY2137 )
                            | ( in @ SY2138 @ ( sK5_SY2040 @ SY2137 @ SV29 ) ) )
                      | ~ ( in @ ( sK5_SY2040 @ SY2137 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
                  | ~ ( in @ SY2137 @ ( sK4_B @ SV29 ) ) )
            | ~ ~ ( ~ ! [SY2139: $i,SY2140: $i] :
                        ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
                        | ~ ( subset @ SY2140 @ SY2139 )
                        | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) )
                  | ~ ( in @ SV29 @ ( sK4_B @ SV29 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[516]) ).

thf(588,plain,
    ! [SV74: $i] :
      ( ( ! [SY2225: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SY2225 @ SV74 ) @ SY2225 )
                    | ~ ( subset @ ( sK28_C @ SY2225 @ SV74 ) @ SV74 ) )
                | ~ ( ( in @ ( sK28_C @ SY2225 @ SV74 ) @ SY2225 )
                    | ( subset @ ( sK28_C @ SY2225 @ SV74 ) @ SV74 ) ) )
            | ( SY2225
              = ( powerset @ SV74 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[517]) ).

thf(589,plain,
    ! [SV75: $i] :
      ( ( ! [SY2226: $i] :
            ( ( SY2226
             != ( powerset @ SV75 ) )
            | ~ ( ~ ! [SY2227: $i] :
                      ( ~ ( in @ SY2227 @ SY2226 )
                      | ( subset @ SY2227 @ SV75 ) )
                | ~ ! [SY2228: $i] :
                      ( ~ ( subset @ SY2228 @ SV75 )
                      | ( in @ SY2228 @ SY2226 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[518]) ).

thf(590,plain,
    ! [SV30: $i] :
      ( ( ( ~ ! [SY2141: $i] :
                ( ~ ( ~ ( ! [SY2142: $i] :
                            ~ ( in @ ( ordered_pair @ SY2142 @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                        | ~ ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2141 @ SV30 ) @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                        | ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) ) )
                | ( SY2141
                  = ( relation_rng @ SV30 ) ) )
          | ~ ! [SY2143: $i] :
                ( ( SY2143
                 != ( relation_rng @ SV30 ) )
                | ~ ( ~ ! [SY2144: $i] :
                          ( ! [SY2145: $i] :
                              ~ ( in @ ( ordered_pair @ SY2145 @ SY2144 ) @ SV30 )
                          | ( in @ SY2144 @ SY2143 ) )
                    | ~ ! [SY2146: $i] :
                          ( ~ ( in @ SY2146 @ SY2143 )
                          | ( in @ ( ordered_pair @ ( sK9_D @ SY2146 @ SY2143 @ SV30 ) @ SY2146 ) @ SV30 ) ) ) ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[519]) ).

thf(591,plain,
    ! [SV31: $i,SV61: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV31 )
          | ~ ~ ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV61 ) )
        = $false )
      | ( ( element @ SV31 @ ( powerset @ SV61 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[520]) ).

thf(592,plain,
    ! [SV76: $i] :
      ( ( ! [SY2229: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SY2229 @ SV76 ) @ SV76 )
                | ~ ~ ( in @ ( sK20_C @ SY2229 @ SV76 ) @ SY2229 ) )
            | ( subset @ SV76 @ SY2229 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[521]) ).

thf(593,plain,
    ! [SV77: $i] :
      ( ( ! [SY2230: $i] :
            ( ~ ( subset @ SV77 @ SY2230 )
            | ! [SY2231: $i] :
                ( ~ ( in @ SY2231 @ SV77 )
                | ( in @ SY2231 @ SY2230 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[522]) ).

thf(594,plain,
    ! [SV32: $i] :
      ( ( ! [SY2148: $i,SY2149: $i] :
            ( ~ ( in @ SV32 @ SY2149 )
            | ~ ( in @ SY2148 @ SY2149 )
            | ( subset @ ( unordered_pair @ SV32 @ SY2148 ) @ SY2149 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[523]) ).

thf(595,plain,
    ! [SV32: $i] :
      ( ( ~ ( ~ ! [SY2150: $i,SY2151: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2150 ) @ SY2151 )
                  | ( in @ SV32 @ SY2151 ) )
            | ~ ! [SY2152: $i,SY2153: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2152 ) @ SY2153 )
                  | ( in @ SY2152 @ SY2153 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[524]) ).

thf(596,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK31_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)],[525]) ).

thf(597,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)],[526]) ).

thf(598,plain,
    ! [SV33: $i] :
      ( ( ( ~ ! [SY2154: $i] :
                ( ~ ( ~ ( ! [SY2155: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ SY2155 ) @ SV33 )
                        | ~ ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ ( sK18_SY2050 @ SY2154 @ SV33 ) ) @ SV33 )
                        | ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) ) )
                | ( SY2154
                  = ( relation_dom @ SV33 ) ) )
          | ~ ! [SY2156: $i] :
                ( ( SY2156
                 != ( relation_dom @ SV33 ) )
                | ~ ( ~ ! [SY2157: $i] :
                          ( ! [SY2158: $i] :
                              ~ ( in @ ( ordered_pair @ SY2157 @ SY2158 ) @ SV33 )
                          | ( in @ SY2157 @ SY2156 ) )
                    | ~ ! [SY2159: $i] :
                          ( ~ ( in @ SY2159 @ SY2156 )
                          | ( in @ ( ordered_pair @ SY2159 @ ( sK16_D @ SY2159 @ SY2156 @ SV33 ) ) @ SV33 ) ) ) ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[527]) ).

thf(599,plain,
    ! [SV78: $i] :
      ( ( ! [SY2232: $i] :
            ( ~ ( in @ SV78 @ SY2232 )
            | ( subset @ ( singleton @ SV78 ) @ SY2232 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[528]) ).

thf(600,plain,
    ! [SV79: $i] :
      ( ( ! [SY2233: $i] :
            ( ~ ( subset @ ( singleton @ SV79 ) @ SY2233 )
            | ( in @ SV79 @ SY2233 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[529]) ).

thf(601,plain,
    ! [SV34: $i] :
      ( ( ! [SY2160: $i] :
            ( ~ ( subset @ SY2160 @ ( sK39_B @ SV34 ) )
            | ( are_equipotent @ SY2160 @ ( sK39_B @ SV34 ) )
            | ( in @ SY2160 @ ( sK39_B @ SV34 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[530]) ).

thf(602,plain,
    ! [SV34: $i] :
      ( ( ~ ( ~ ! [SY2161: $i] :
                  ( ~ ( in @ SY2161 @ ( sK39_B @ SV34 ) )
                  | ( in @ ( powerset @ SY2161 ) @ ( sK39_B @ SV34 ) ) )
            | ~ ~ ( ~ ! [SY2162: $i,SY2163: $i] :
                        ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
                        | ~ ( subset @ SY2163 @ SY2162 )
                        | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) )
                  | ~ ( in @ SV34 @ ( sK39_B @ SV34 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[531]) ).

thf(603,plain,
    ! [SV80: $i] :
      ( ( ! [SY2234: $i] :
            ( ~ ( ~ ( ( ( sK30_C @ SY2234 @ SV80 )
                     != SV80 )
                    | ~ ( in @ ( sK30_C @ SY2234 @ SV80 ) @ SY2234 ) )
                | ~ ( ( ( sK30_C @ SY2234 @ SV80 )
                      = SV80 )
                    | ( in @ ( sK30_C @ SY2234 @ SV80 ) @ SY2234 ) ) )
            | ( SY2234
              = ( singleton @ SV80 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[532]) ).

thf(604,plain,
    ! [SV81: $i] :
      ( ( ! [SY2235: $i] :
            ( ( SY2235
             != ( singleton @ SV81 ) )
            | ~ ( ~ ! [SY2236: $i] :
                      ( ( SY2236 != SV81 )
                      | ( in @ SY2236 @ SY2235 ) )
                | ~ ! [SY2237: $i] :
                      ( ~ ( in @ SY2237 @ SY2235 )
                      | ( SY2237 = SV81 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[533]) ).

thf(605,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
              | ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) )
          | ~ ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
              | ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) ) )
        = $false )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[534]) ).

thf(606,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ~ ! [SY2207: $i,SY2208: $i] :
              ( ~ ( in @ SV36 @ SY2207 )
              | ~ ( in @ SV63 @ SY2208 )
              | ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2207 @ SY2208 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[535]) ).

thf(607,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ~ ~ ( ~ ! [SY2209: $i] :
                    ( ! [SY2210: $i] :
                        ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2209 @ SY2210 ) )
                    | ( in @ SV36 @ SY2209 ) )
              | ~ ! [SY2211: $i,SY2212: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2211 @ SY2212 ) )
                    | ( in @ SV63 @ SY2212 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[535]) ).

thf(608,plain,
    ! [SV82: $i] :
      ( ( ~ ( ~ ! [SY2238: $i,SY2239: $i] :
                  ( ( sK36_B @ SV82 )
                 != ( ordered_pair @ SY2238 @ SY2239 ) )
            | ~ ( in @ ( sK36_B @ SV82 ) @ SV82 ) )
        | ( relation @ SV82 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[536]) ).

thf(609,plain,
    ! [SV83: $i] :
      ( ( ~ ( relation @ SV83 )
        | ! [SY2240: $i] :
            ( ( SY2240
              = ( ordered_pair @ ( sK34_C @ SY2240 @ SV83 ) @ ( sK35_SY2059 @ SY2240 @ SV83 ) ) )
            | ~ ( in @ SY2240 @ SV83 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[537]) ).

thf(610,plain,
    ! [SV37: $i] :
      ( ( ( ~ ! [SY2172: $i] :
                ( ~ ( relation @ SY2172 )
                | ~ ( subset @ SV37 @ SY2172 )
                | ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SY2172 ) ) )
          | ~ ! [SY2173: $i] :
                ( ~ ( relation @ SY2173 )
                | ~ ( subset @ SV37 @ SY2173 )
                | ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SY2173 ) ) ) )
        = $false )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[538]) ).

thf(611,plain,
    ! [SV84: $i] :
      ( ( ! [SY2241: $i] :
            ( ( disjoint @ SV84 @ SY2241 )
            | ( in @ ( sK37_C @ SY2241 @ SV84 ) @ ( set_intersection2 @ SV84 @ SY2241 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[539]) ).

thf(612,plain,
    ! [SV85: $i] :
      ( ( ! [SY2242: $i] :
            ( ! [SY2243: $i] :
                ~ ( in @ SY2243 @ ( set_intersection2 @ SV85 @ SY2242 ) )
            | ~ ( disjoint @ SV85 @ SY2242 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[540]) ).

thf(613,plain,
    ! [SV86: $i] :
      ( ( ! [SY2244: $i] :
            ( ( ( set_difference @ SV86 @ ( singleton @ SY2244 ) )
             != SV86 )
            | ~ ( in @ SY2244 @ SV86 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[541]) ).

thf(614,plain,
    ! [SV87: $i] :
      ( ( ! [SY2245: $i] :
            ( ( in @ SY2245 @ SV87 )
            | ( ( set_difference @ SV87 @ ( singleton @ SY2245 ) )
              = SV87 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[542]) ).

thf(615,plain,
    ! [SV88: $i] :
      ( ( ( in @ ( sK29_B @ SV88 ) @ SV88 )
        | ( SV88 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[543]) ).

thf(616,plain,
    ! [SV89: $i] :
      ( ( ( SV89 != empty_set )
        | ! [SY2246: $i] :
            ~ ( in @ SY2246 @ SV89 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[544]) ).

thf(617,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)],[545]) ).

thf(618,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)],[546]) ).

thf(619,plain,
    ! [SV38: $i] :
      ( ( ! [SY2174: $i,SY2175: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SV38 )
                    | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2174 )
                    | ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) )
                | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SV38 )
                          | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) )
                      | ~ ( ~ ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2174 )
                          | ( in @ ( sK12_D @ SY2175 @ SY2174 @ SV38 ) @ SY2175 ) ) ) )
            | ( SY2175
              = ( set_difference @ SV38 @ SY2174 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[547]) ).

thf(620,plain,
    ! [SV38: $i] :
      ( ( ! [SY2176: $i,SY2177: $i] :
            ( ( SY2177
             != ( set_difference @ SV38 @ SY2176 ) )
            | ~ ( ~ ! [SY2178: $i] :
                      ( ~ ( in @ SY2178 @ SV38 )
                      | ( in @ SY2178 @ SY2176 )
                      | ( in @ SY2178 @ SY2177 ) )
                | ~ ~ ( ~ ! [SY2179: $i] :
                            ( ~ ( in @ SY2179 @ SY2177 )
                            | ( in @ SY2179 @ SV38 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY2177 )
                            | ~ ( in @ SX3 @ SY2176 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[548]) ).

thf(621,plain,
    ! [SV39: $i] :
      ( ( ! [SY2181: $i,SY2182: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SV39 )
                    | ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2181 )
                    | ~ ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) )
                | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SV39 )
                          | ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) )
                      | ~ ( ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2181 )
                          | ( in @ ( sK19_D @ SY2182 @ SY2181 @ SV39 ) @ SY2182 ) ) ) )
            | ( SY2182
              = ( set_intersection2 @ SV39 @ SY2181 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[549]) ).

thf(622,plain,
    ! [SV39: $i] :
      ( ( ! [SY2183: $i,SY2184: $i] :
            ( ( SY2184
             != ( set_intersection2 @ SV39 @ SY2183 ) )
            | ~ ( ~ ! [SY2185: $i] :
                      ( ~ ( in @ SY2185 @ SV39 )
                      | ~ ( in @ SY2185 @ SY2183 )
                      | ( in @ SY2185 @ SY2184 ) )
                | ~ ~ ( ~ ! [SY2186: $i] :
                            ( ~ ( in @ SY2186 @ SY2184 )
                            | ( in @ SY2186 @ SV39 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY2184 )
                            | ( in @ SX3 @ SY2183 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[550]) ).

thf(623,plain,
    ! [SV41: $i,SV2: $i] :
      ( ( ( in @ SV2 @ SV41 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV2 ) @ SV41 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[552]) ).

thf(624,plain,
    ! [SV4: $i,SV43: $i,SV90: $i] :
      ( ( ( ~ ( in @ SV90 @ SV43 )
          | ( in @ SV90 @ SV4 ) )
        = $true )
      | ( ( element @ SV43 @ ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[553]) ).

thf(625,plain,
    ! [SV44: $i,SV5: $i,SV91: $i] :
      ( ( ( ( in @ SV91 @ SV5 )
          | ( subset @ SV5 @ ( set_difference @ SV44 @ ( singleton @ SV91 ) ) ) )
        = $true )
      | ( ( subset @ SV5 @ SV44 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[554]) ).

thf(626,plain,
    ! [SV9: $i,SV64: $i] :
      ( ( ( element @ SV64 @ ( powerset @ SV9 ) )
        = $false )
      | ( ( ! [SY2213: $i] :
              ( ~ ( element @ SY2213 @ SV9 )
              | ( in @ SY2213 @ SV64 )
              | ( in @ SY2213 @ ( subset_complement @ SV9 @ SV64 ) ) ) )
        = $true )
      | ( ( SV9 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[557]) ).

thf(627,plain,
    ! [SV47: $i,SV10: $i,SV65: $i] :
      ( ( ( element @ SV65 @ ( powerset @ SV10 ) )
        = $false )
      | ( ( ~ ( in @ SV47 @ ( subset_complement @ SV10 @ SV65 ) )
          | ~ ( in @ SV47 @ SV65 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[558]) ).

thf(628,plain,
    ! [SV12: $i,SV49: $i] :
      ( ( ( in @ SV49 @ SV12 )
        = $false )
      | ( ( in @ SV12 @ SV49 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[560]) ).

thf(629,plain,
    ! [SV52: $i,SV16: $i] :
      ( ( ( relation @ SV16 )
        = $false )
      | ( ( ~ ( relation @ SV52 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV16 @ SV52 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[561]) ).

thf(630,plain,
    ! [SV18: $i,SV54: $i] :
      ( ( ( empty @ SV54 )
        = $true )
      | ( ( in @ SV18 @ SV54 )
        = $true )
      | ( ( element @ SV18 @ SV54 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[563]) ).

thf(631,plain,
    ! [SV19: $i,SV66: $i,SV55: $i] :
      ( ( ( ~ ( element @ SV55 @ ( powerset @ SV66 ) ) )
        = $true )
      | ( ( ~ ( in @ SV19 @ SV55 ) )
        = $true )
      | ( ( element @ SV19 @ SV66 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[564]) ).

thf(632,plain,
    ! [SV20: $i,SV67: $i,SV56: $i] :
      ( ( ( ~ ( element @ SV56 @ ( powerset @ SV67 ) ) )
        = $true )
      | ( ( ~ ( in @ SV20 @ SV56 ) )
        = $true )
      | ( ( ~ ( empty @ SV67 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[565]) ).

thf(633,plain,
    ! [SV57: $i,SV21: $i] :
      ( ( ( in @ SV21 @ SV57 )
        = $false )
      | ( ( empty @ SV57 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[566]) ).

thf(634,plain,
    ! [SV92: $i,SV68: $i] :
      ( ( ~ ( in @ SV68 @ SV92 )
        | ( subset @ ( singleton @ SV68 ) @ SV92 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[567]) ).

thf(635,plain,
    ! [SV93: $i,SV69: $i] :
      ( ( ~ ( subset @ ( singleton @ SV69 ) @ SV93 )
        | ( in @ SV69 @ SV93 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[568]) ).

thf(636,plain,
    ! [SV94: $i,SV22: $i] :
      ( ( ! [SY2247: $i] :
            ( ~ ( relation @ SY2247 )
            | ~ ( in @ ( ordered_pair @ SV22 @ SV94 ) @ SY2247 )
            | ( in @ SV22 @ ( relation_dom @ SY2247 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[569]) ).

thf(637,plain,
    ! [SV95: $i,SV22: $i] :
      ( ( ! [SY2248: $i] :
            ( ~ ( relation @ SY2248 )
            | ~ ( in @ ( ordered_pair @ SV22 @ SV95 ) @ SY2248 )
            | ( in @ SV95 @ ( relation_rng @ SY2248 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[570]) ).

thf(638,plain,
    ! [SV96: $i,SV23: $i] :
      ( ( ! [SY2249: $i] :
            ( ~ ( ~ ( ! [SY2250: $i,SY2251: $i] :
                        ( ~ ( in @ SY2250 @ SV23 )
                        | ~ ( in @ SY2251 @ SV96 )
                        | ( ( sK23_D @ SY2249 @ SV96 @ SV23 )
                         != ( ordered_pair @ SY2250 @ SY2251 ) ) )
                    | ~ ( in @ ( sK23_D @ SY2249 @ SV96 @ SV23 ) @ SY2249 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2249 @ SV96 @ SV23 ) @ SV23 )
                              | ~ ( in @ ( sK25_SY2056 @ SY2249 @ SV96 @ SV23 ) @ SV96 ) )
                        | ( ( sK23_D @ SY2249 @ SV96 @ SV23 )
                         != ( ordered_pair @ ( sK24_SY2054 @ SY2249 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SY2249 @ SV96 @ SV23 ) ) ) )
                    | ( in @ ( sK23_D @ SY2249 @ SV96 @ SV23 ) @ SY2249 ) ) )
            | ( SY2249
              = ( cartesian_product2 @ SV23 @ SV96 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[571]) ).

thf(639,plain,
    ! [SV97: $i,SV23: $i] :
      ( ( ! [SY2252: $i] :
            ( ( SY2252
             != ( cartesian_product2 @ SV23 @ SV97 ) )
            | ~ ( ~ ! [SY2253: $i] :
                      ( ! [SY2254: $i,SY2255: $i] :
                          ( ~ ( in @ SY2254 @ SV23 )
                          | ~ ( in @ SY2255 @ SV97 )
                          | ( SY2253
                           != ( ordered_pair @ SY2254 @ SY2255 ) ) )
                      | ( in @ SY2253 @ SY2252 ) )
                | ~ ! [SY2256: $i] :
                      ( ~ ( in @ SY2256 @ SY2252 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2256 @ SY2252 @ SV97 @ SV23 ) @ SV23 )
                                | ~ ( in @ ( sK22_SY2051 @ SY2256 @ SY2252 @ SV97 @ SV23 ) @ SV97 ) )
                          | ( SY2256
                           != ( ordered_pair @ ( sK21_E @ SY2256 @ SY2252 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SY2256 @ SY2252 @ SV97 @ SV23 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[572]) ).

thf(640,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ~ ( ~ ( ! [SY2257: $i] :
                    ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SY2257 )
                    | ~ ( in @ SY2257 @ SV70 ) )
                | ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
            | ~ ( ~ ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ ( sK15_SY2048 @ SV98 @ SV70 ) )
                    | ~ ( in @ ( sK15_SY2048 @ SV98 @ SV70 ) @ SV70 ) )
                | ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) ) )
        | ( SV98
          = ( union @ SV70 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[573]) ).

thf(641,plain,
    ! [SV71: $i,SV99: $i] :
      ( ( ( SV99
         != ( union @ SV71 ) )
        | ~ ( ~ ! [SY2258: $i] :
                  ( ! [SY2220: $i] :
                      ( ~ ( in @ SY2258 @ SY2220 )
                      | ~ ( in @ SY2220 @ SV71 ) )
                  | ( in @ SY2258 @ SV99 ) )
            | ~ ! [SY2260: $i] :
                  ( ~ ( in @ SY2260 @ SV99 )
                  | ~ ( ~ ( in @ SY2260 @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) )
                      | ~ ( in @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) @ SV71 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[574]) ).

thf(642,plain,
    ! [SV24: $i,SV100: $i] :
      ( ( ! [SY2261: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2261 @ SV100 @ SV24 ) @ SY2261 )
                          | ~ ( in @ ( sK26_D @ SY2261 @ SV100 @ SV24 ) @ SV24 ) )
                      | ~ ( ~ ( in @ ( sK26_D @ SY2261 @ SV100 @ SV24 ) @ SY2261 )
                          | ~ ( in @ ( sK26_D @ SY2261 @ SV100 @ SV24 ) @ SV100 ) ) )
                | ~ ( ( in @ ( sK26_D @ SY2261 @ SV100 @ SV24 ) @ SY2261 )
                    | ( in @ ( sK26_D @ SY2261 @ SV100 @ SV24 ) @ SV24 )
                    | ( in @ ( sK26_D @ SY2261 @ SV100 @ SV24 ) @ SV100 ) ) )
            | ( SY2261
              = ( set_union2 @ SV24 @ SV100 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[575]) ).

thf(643,plain,
    ! [SV101: $i,SV24: $i] :
      ( ( ! [SY2262: $i] :
            ( ( SY2262
             != ( set_union2 @ SV24 @ SV101 ) )
            | ~ ( ~ ! [SY2263: $i] :
                      ( ~ ( in @ SY2263 @ SY2262 )
                      | ( in @ SY2263 @ SV24 )
                      | ( in @ SY2263 @ SV101 ) )
                | ~ ~ ( ~ ! [SY2110: $i] :
                            ( ~ ( in @ SY2110 @ SV24 )
                            | ( in @ SY2110 @ SY2262 ) )
                      | ~ ! [SY2265: $i] :
                            ( ~ ( in @ SY2265 @ SV101 )
                            | ( in @ SY2265 @ SY2262 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[576]) ).

thf(644,plain,
    ! [SV102: $i,SV72: $i] :
      ( ( ( disjoint @ SV72 @ SV102 )
        | ~ ( ~ ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV72 )
            | ~ ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV102 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[577]) ).

thf(645,plain,
    ! [SV103: $i,SV73: $i] :
      ( ( ! [SY2266: $i] :
            ( ~ ( in @ SY2266 @ SV73 )
            | ~ ( in @ SY2266 @ SV103 ) )
        | ~ ( disjoint @ SV73 @ SV103 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[578]) ).

thf(646,plain,
    ! [SV58: $i,SV25: $i] :
      ( ( ( ~ ! [SY2193: $i] :
                ( ~ ( element @ SY2193 @ ( powerset @ ( powerset @ SV25 ) ) )
                | ~ ( ~ ( element @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
                    | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                              | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) )
                          | ~ ( ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                              | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
                | ( SY2193
                  = ( complements_of_subsets @ SV25 @ SV58 ) ) )
          | ~ ! [SY2194: $i] :
                ( ~ ( element @ SY2194 @ ( powerset @ ( powerset @ SV25 ) ) )
                | ( SY2194
                 != ( complements_of_subsets @ SV25 @ SV58 ) )
                | ~ ( ~ ! [SY2195: $i] :
                          ( ~ ( element @ SY2195 @ ( powerset @ SV25 ) )
                          | ~ ( in @ SY2195 @ SY2194 )
                          | ( in @ ( subset_complement @ SV25 @ SY2195 ) @ SV58 ) )
                    | ~ ! [SY2196: $i] :
                          ( ~ ( element @ SY2196 @ ( powerset @ SV25 ) )
                          | ~ ( in @ ( subset_complement @ SV25 @ SY2196 ) @ SV58 )
                          | ( in @ SY2196 @ SY2194 ) ) ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[579]) ).

thf(647,plain,
    ! [SV26: $i,SV104: $i] :
      ( ( ! [SY2267: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2267 @ SV104 @ SV26 ) @ SY2267 )
                          | ( ( sK27_D @ SY2267 @ SV104 @ SV26 )
                           != SV26 ) )
                      | ~ ( ~ ( in @ ( sK27_D @ SY2267 @ SV104 @ SV26 ) @ SY2267 )
                          | ( ( sK27_D @ SY2267 @ SV104 @ SV26 )
                           != SV104 ) ) )
                | ~ ( ( in @ ( sK27_D @ SY2267 @ SV104 @ SV26 ) @ SY2267 )
                    | ( ( sK27_D @ SY2267 @ SV104 @ SV26 )
                      = SV26 )
                    | ( ( sK27_D @ SY2267 @ SV104 @ SV26 )
                      = SV104 ) ) )
            | ( SY2267
              = ( unordered_pair @ SV26 @ SV104 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[580]) ).

thf(648,plain,
    ! [SV105: $i,SV26: $i] :
      ( ( ! [SY2268: $i] :
            ( ( SY2268
             != ( unordered_pair @ SV26 @ SV105 ) )
            | ~ ( ~ ! [SY2269: $i] :
                      ( ~ ( in @ SY2269 @ SY2268 )
                      | ( SY2269 = SV26 )
                      | ( SY2269 = SV105 ) )
                | ~ ~ ( ~ ! [SY2122: $i] :
                            ( ( SY2122 != SV26 )
                            | ( in @ SY2122 @ SY2268 ) )
                      | ~ ! [SY2271: $i] :
                            ( ( SY2271 != SV105 )
                            | ( in @ SY2271 @ SY2268 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[581]) ).

thf(649,plain,
    ! [SV59: $i,SV27: $i] :
      ( ( ! [SY2197: $i] :
            ( ! [SY2198: $i] :
                ( ( ordered_pair @ SV27 @ SV59 )
               != ( ordered_pair @ SY2197 @ SY2198 ) )
            | ( SV27 = SY2197 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[582]) ).

thf(650,plain,
    ! [SV59: $i,SV27: $i] :
      ( ( ! [SY2199: $i,SY2200: $i] :
            ( ( ( ordered_pair @ SV27 @ SV59 )
             != ( ordered_pair @ SY2199 @ SY2200 ) )
            | ( SV59 = SY2200 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[583]) ).

thf(651,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ! [SY2201: $i,SY2202: $i] :
            ( ~ ( in @ SV28 @ SY2201 )
            | ~ ( in @ SV60 @ SY2202 )
            | ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2201 @ SY2202 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[584]) ).

thf(652,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ~ ( ~ ! [SY2203: $i] :
                  ( ! [SY2204: $i] :
                      ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2203 @ SY2204 ) )
                  | ( in @ SV28 @ SY2203 ) )
            | ~ ! [SY2205: $i,SY2206: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2205 @ SY2206 ) )
                  | ( in @ SV60 @ SY2206 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[585]) ).

thf(653,plain,
    ! [SV29: $i,SV106: $i] :
      ( ( ~ ( subset @ SV106 @ ( sK4_B @ SV29 ) )
        | ( are_equipotent @ SV106 @ ( sK4_B @ SV29 ) )
        | ( in @ SV106 @ ( sK4_B @ SV29 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[586]) ).

thf(654,plain,
    ! [SV29: $i] :
      ( ( ~ ! [SY2137: $i] :
              ( ~ ( ~ ! [SY2138: $i] :
                        ( ~ ( subset @ SY2138 @ SY2137 )
                        | ( in @ SY2138 @ ( sK5_SY2040 @ SY2137 @ SV29 ) ) )
                  | ~ ( in @ ( sK5_SY2040 @ SY2137 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
              | ~ ( in @ SY2137 @ ( sK4_B @ SV29 ) ) )
        | ~ ~ ( ~ ! [SY2139: $i,SY2140: $i] :
                    ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
                    | ~ ( subset @ SY2140 @ SY2139 )
                    | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) )
              | ~ ( in @ SV29 @ ( sK4_B @ SV29 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[587]) ).

thf(655,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
                | ~ ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) )
            | ~ ( ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
                | ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) ) )
        | ( SV107
          = ( powerset @ SV74 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[588]) ).

thf(656,plain,
    ! [SV75: $i,SV108: $i] :
      ( ( ( SV108
         != ( powerset @ SV75 ) )
        | ~ ( ~ ! [SY2272: $i] :
                  ( ~ ( in @ SY2272 @ SV108 )
                  | ( subset @ SY2272 @ SV75 ) )
            | ~ ! [SY2273: $i] :
                  ( ~ ( subset @ SY2273 @ SV75 )
                  | ( in @ SY2273 @ SV108 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[589]) ).

thf(657,plain,
    ! [SV30: $i] :
      ( ( ( ~ ! [SY2141: $i] :
                ( ~ ( ~ ( ! [SY2142: $i] :
                            ~ ( in @ ( ordered_pair @ SY2142 @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                        | ~ ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2141 @ SV30 ) @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                        | ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) ) )
                | ( SY2141
                  = ( relation_rng @ SV30 ) ) ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[590]) ).

thf(658,plain,
    ! [SV30: $i] :
      ( ( ( ~ ! [SY2143: $i] :
                ( ( SY2143
                 != ( relation_rng @ SV30 ) )
                | ~ ( ~ ! [SY2144: $i] :
                          ( ! [SY2145: $i] :
                              ~ ( in @ ( ordered_pair @ SY2145 @ SY2144 ) @ SV30 )
                          | ( in @ SY2144 @ SY2143 ) )
                    | ~ ! [SY2146: $i] :
                          ( ~ ( in @ SY2146 @ SY2143 )
                          | ( in @ ( ordered_pair @ ( sK9_D @ SY2146 @ SY2143 @ SV30 ) @ SY2146 ) @ SV30 ) ) ) ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[590]) ).

thf(659,plain,
    ! [SV31: $i,SV61: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV31 ) )
        = $false )
      | ( ( element @ SV31 @ ( powerset @ SV61 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[591]) ).

thf(660,plain,
    ! [SV31: $i,SV61: $i] :
      ( ( ( ~ ~ ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV61 ) )
        = $false )
      | ( ( element @ SV31 @ ( powerset @ SV61 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[591]) ).

thf(661,plain,
    ! [SV76: $i,SV109: $i] :
      ( ( ~ ( ~ ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV76 )
            | ~ ~ ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV109 ) )
        | ( subset @ SV76 @ SV109 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[592]) ).

thf(662,plain,
    ! [SV110: $i,SV77: $i] :
      ( ( ~ ( subset @ SV77 @ SV110 )
        | ! [SY2274: $i] :
            ( ~ ( in @ SY2274 @ SV77 )
            | ( in @ SY2274 @ SV110 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[593]) ).

thf(663,plain,
    ! [SV111: $i,SV32: $i] :
      ( ( ! [SY2275: $i] :
            ( ~ ( in @ SV32 @ SY2275 )
            | ~ ( in @ SV111 @ SY2275 )
            | ( subset @ ( unordered_pair @ SV32 @ SV111 ) @ SY2275 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[594]) ).

thf(664,plain,
    ! [SV32: $i] :
      ( ( ~ ! [SY2150: $i,SY2151: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2150 ) @ SY2151 )
              | ( in @ SV32 @ SY2151 ) )
        | ~ ! [SY2152: $i,SY2153: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2152 ) @ SY2153 )
              | ( in @ SY2152 @ SY2153 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[595]) ).

thf(665,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[596]) ).

thf(666,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK31_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)],[596]) ).

thf(667,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[597]) ).

thf(668,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[597]) ).

thf(669,plain,
    ! [SV33: $i] :
      ( ( ( ~ ! [SY2154: $i] :
                ( ~ ( ~ ( ! [SY2155: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ SY2155 ) @ SV33 )
                        | ~ ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ ( sK18_SY2050 @ SY2154 @ SV33 ) ) @ SV33 )
                        | ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) ) )
                | ( SY2154
                  = ( relation_dom @ SV33 ) ) ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[598]) ).

thf(670,plain,
    ! [SV33: $i] :
      ( ( ( ~ ! [SY2156: $i] :
                ( ( SY2156
                 != ( relation_dom @ SV33 ) )
                | ~ ( ~ ! [SY2157: $i] :
                          ( ! [SY2158: $i] :
                              ~ ( in @ ( ordered_pair @ SY2157 @ SY2158 ) @ SV33 )
                          | ( in @ SY2157 @ SY2156 ) )
                    | ~ ! [SY2159: $i] :
                          ( ~ ( in @ SY2159 @ SY2156 )
                          | ( in @ ( ordered_pair @ SY2159 @ ( sK16_D @ SY2159 @ SY2156 @ SV33 ) ) @ SV33 ) ) ) ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[598]) ).

thf(671,plain,
    ! [SV112: $i,SV78: $i] :
      ( ( ~ ( in @ SV78 @ SV112 )
        | ( subset @ ( singleton @ SV78 ) @ SV112 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[599]) ).

thf(672,plain,
    ! [SV113: $i,SV79: $i] :
      ( ( ~ ( subset @ ( singleton @ SV79 ) @ SV113 )
        | ( in @ SV79 @ SV113 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[600]) ).

thf(673,plain,
    ! [SV34: $i,SV114: $i] :
      ( ( ~ ( subset @ SV114 @ ( sK39_B @ SV34 ) )
        | ( are_equipotent @ SV114 @ ( sK39_B @ SV34 ) )
        | ( in @ SV114 @ ( sK39_B @ SV34 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[601]) ).

thf(674,plain,
    ! [SV34: $i] :
      ( ( ~ ! [SY2161: $i] :
              ( ~ ( in @ SY2161 @ ( sK39_B @ SV34 ) )
              | ( in @ ( powerset @ SY2161 ) @ ( sK39_B @ SV34 ) ) )
        | ~ ~ ( ~ ! [SY2162: $i,SY2163: $i] :
                    ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
                    | ~ ( subset @ SY2163 @ SY2162 )
                    | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) )
              | ~ ( in @ SV34 @ ( sK39_B @ SV34 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[602]) ).

thf(675,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ~ ( ~ ( ( ( sK30_C @ SV115 @ SV80 )
                 != SV80 )
                | ~ ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) )
            | ~ ( ( ( sK30_C @ SV115 @ SV80 )
                  = SV80 )
                | ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) ) )
        | ( SV115
          = ( singleton @ SV80 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[603]) ).

thf(676,plain,
    ! [SV81: $i,SV116: $i] :
      ( ( ( SV116
         != ( singleton @ SV81 ) )
        | ~ ( ~ ! [SY2276: $i] :
                  ( ( SY2276 != SV81 )
                  | ( in @ SY2276 @ SV116 ) )
            | ~ ! [SY2277: $i] :
                  ( ~ ( in @ SY2277 @ SV116 )
                  | ( SY2277 = SV81 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[604]) ).

thf(677,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
              | ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) ) )
        = $false )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[605]) ).

thf(678,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( ~ ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
              | ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) ) )
        = $false )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[605]) ).

thf(679,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ! [SY2207: $i,SY2208: $i] :
            ( ~ ( in @ SV36 @ SY2207 )
            | ~ ( in @ SV63 @ SY2208 )
            | ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2207 @ SY2208 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[606]) ).

thf(680,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ~ ( ~ ! [SY2209: $i] :
                  ( ! [SY2210: $i] :
                      ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2209 @ SY2210 ) )
                  | ( in @ SV36 @ SY2209 ) )
            | ~ ! [SY2211: $i,SY2212: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2211 @ SY2212 ) )
                  | ( in @ SV63 @ SY2212 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[607]) ).

thf(681,plain,
    ! [SV82: $i] :
      ( ( ( ~ ( ~ ! [SY2238: $i,SY2239: $i] :
                    ( ( sK36_B @ SV82 )
                   != ( ordered_pair @ SY2238 @ SY2239 ) )
              | ~ ( in @ ( sK36_B @ SV82 ) @ SV82 ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[608]) ).

thf(682,plain,
    ! [SV83: $i] :
      ( ( ( ~ ( relation @ SV83 ) )
        = $true )
      | ( ( ! [SY2240: $i] :
              ( ( SY2240
                = ( ordered_pair @ ( sK34_C @ SY2240 @ SV83 ) @ ( sK35_SY2059 @ SY2240 @ SV83 ) ) )
              | ~ ( in @ SY2240 @ SV83 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[609]) ).

thf(683,plain,
    ! [SV37: $i] :
      ( ( ( ~ ! [SY2172: $i] :
                ( ~ ( relation @ SY2172 )
                | ~ ( subset @ SV37 @ SY2172 )
                | ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SY2172 ) ) ) )
        = $false )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[610]) ).

thf(684,plain,
    ! [SV37: $i] :
      ( ( ( ~ ! [SY2173: $i] :
                ( ~ ( relation @ SY2173 )
                | ~ ( subset @ SV37 @ SY2173 )
                | ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SY2173 ) ) ) )
        = $false )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[610]) ).

thf(685,plain,
    ! [SV117: $i,SV84: $i] :
      ( ( ( disjoint @ SV84 @ SV117 )
        | ( in @ ( sK37_C @ SV117 @ SV84 ) @ ( set_intersection2 @ SV84 @ SV117 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[611]) ).

thf(686,plain,
    ! [SV118: $i,SV85: $i] :
      ( ( ! [SY2278: $i] :
            ~ ( in @ SY2278 @ ( set_intersection2 @ SV85 @ SV118 ) )
        | ~ ( disjoint @ SV85 @ SV118 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[612]) ).

thf(687,plain,
    ! [SV119: $i,SV86: $i] :
      ( ( ( ( set_difference @ SV86 @ ( singleton @ SV119 ) )
         != SV86 )
        | ~ ( in @ SV119 @ SV86 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[613]) ).

thf(688,plain,
    ! [SV87: $i,SV120: $i] :
      ( ( ( in @ SV120 @ SV87 )
        | ( ( set_difference @ SV87 @ ( singleton @ SV120 ) )
          = SV87 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[614]) ).

thf(689,plain,
    ! [SV88: $i] :
      ( ( ( in @ ( sK29_B @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[615]) ).

thf(690,plain,
    ! [SV89: $i] :
      ( ( ( ( SV89 != empty_set ) )
        = $true )
      | ( ( ! [SY2246: $i] :
              ~ ( in @ SY2246 @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[616]) ).

thf(691,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[617]) ).

thf(692,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[617]) ).

thf(693,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[618]) ).

thf(694,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[618]) ).

thf(695,plain,
    ! [SV38: $i,SV121: $i] :
      ( ( ! [SY2279: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2279 @ SV121 @ SV38 ) @ SV38 )
                    | ( in @ ( sK12_D @ SY2279 @ SV121 @ SV38 ) @ SV121 )
                    | ~ ( in @ ( sK12_D @ SY2279 @ SV121 @ SV38 ) @ SY2279 ) )
                | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2279 @ SV121 @ SV38 ) @ SV38 )
                          | ( in @ ( sK12_D @ SY2279 @ SV121 @ SV38 ) @ SY2279 ) )
                      | ~ ( ~ ( in @ ( sK12_D @ SY2279 @ SV121 @ SV38 ) @ SV121 )
                          | ( in @ ( sK12_D @ SY2279 @ SV121 @ SV38 ) @ SY2279 ) ) ) )
            | ( SY2279
              = ( set_difference @ SV38 @ SV121 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[619]) ).

thf(696,plain,
    ! [SV122: $i,SV38: $i] :
      ( ( ! [SY2280: $i] :
            ( ( SY2280
             != ( set_difference @ SV38 @ SV122 ) )
            | ~ ( ~ ! [SY2281: $i] :
                      ( ~ ( in @ SY2281 @ SV38 )
                      | ( in @ SY2281 @ SV122 )
                      | ( in @ SY2281 @ SY2280 ) )
                | ~ ~ ( ~ ! [SY2179: $i] :
                            ( ~ ( in @ SY2179 @ SY2280 )
                            | ( in @ SY2179 @ SV38 ) )
                      | ~ ! [SY2283: $i] :
                            ( ~ ( in @ SY2283 @ SY2280 )
                            | ~ ( in @ SY2283 @ SV122 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[620]) ).

thf(697,plain,
    ! [SV39: $i,SV123: $i] :
      ( ( ! [SY2284: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2284 @ SV123 @ SV39 ) @ SV39 )
                    | ~ ( in @ ( sK19_D @ SY2284 @ SV123 @ SV39 ) @ SV123 )
                    | ~ ( in @ ( sK19_D @ SY2284 @ SV123 @ SV39 ) @ SY2284 ) )
                | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2284 @ SV123 @ SV39 ) @ SV39 )
                          | ( in @ ( sK19_D @ SY2284 @ SV123 @ SV39 ) @ SY2284 ) )
                      | ~ ( ( in @ ( sK19_D @ SY2284 @ SV123 @ SV39 ) @ SV123 )
                          | ( in @ ( sK19_D @ SY2284 @ SV123 @ SV39 ) @ SY2284 ) ) ) )
            | ( SY2284
              = ( set_intersection2 @ SV39 @ SV123 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[621]) ).

thf(698,plain,
    ! [SV124: $i,SV39: $i] :
      ( ( ! [SY2285: $i] :
            ( ( SY2285
             != ( set_intersection2 @ SV39 @ SV124 ) )
            | ~ ( ~ ! [SY2286: $i] :
                      ( ~ ( in @ SY2286 @ SV39 )
                      | ~ ( in @ SY2286 @ SV124 )
                      | ( in @ SY2286 @ SY2285 ) )
                | ~ ~ ( ~ ! [SY2186: $i] :
                            ( ~ ( in @ SY2186 @ SY2285 )
                            | ( in @ SY2186 @ SV39 ) )
                      | ~ ! [SY2288: $i] :
                            ( ~ ( in @ SY2288 @ SY2285 )
                            | ( in @ SY2288 @ SV124 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[622]) ).

thf(699,plain,
    ! [SV4: $i,SV43: $i,SV90: $i] :
      ( ( ( ~ ( in @ SV90 @ SV43 ) )
        = $true )
      | ( ( in @ SV90 @ SV4 )
        = $true )
      | ( ( element @ SV43 @ ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[624]) ).

thf(700,plain,
    ! [SV44: $i,SV5: $i,SV91: $i] :
      ( ( ( in @ SV91 @ SV5 )
        = $true )
      | ( ( subset @ SV5 @ ( set_difference @ SV44 @ ( singleton @ SV91 ) ) )
        = $true )
      | ( ( subset @ SV5 @ SV44 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[625]) ).

thf(701,plain,
    ! [SV64: $i,SV9: $i,SV125: $i] :
      ( ( ( ~ ( element @ SV125 @ SV9 )
          | ( in @ SV125 @ SV64 )
          | ( in @ SV125 @ ( subset_complement @ SV9 @ SV64 ) ) )
        = $true )
      | ( ( element @ SV64 @ ( powerset @ SV9 ) )
        = $false )
      | ( ( SV9 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[626]) ).

thf(702,plain,
    ! [SV65: $i,SV10: $i,SV47: $i] :
      ( ( ( ~ ( in @ SV47 @ ( subset_complement @ SV10 @ SV65 ) ) )
        = $true )
      | ( ( ~ ( in @ SV47 @ SV65 ) )
        = $true )
      | ( ( element @ SV65 @ ( powerset @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[627]) ).

thf(703,plain,
    ! [SV16: $i,SV52: $i] :
      ( ( ( relation @ SV52 )
        = $false )
      | ( ( relation @ SV16 )
        = $false )
      | ( ( relation @ ( set_union2 @ SV16 @ SV52 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[629]) ).

thf(704,plain,
    ! [SV19: $i,SV66: $i,SV55: $i] :
      ( ( ( element @ SV55 @ ( powerset @ SV66 ) )
        = $false )
      | ( ( ~ ( in @ SV19 @ SV55 ) )
        = $true )
      | ( ( element @ SV19 @ SV66 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[631]) ).

thf(705,plain,
    ! [SV20: $i,SV67: $i,SV56: $i] :
      ( ( ( element @ SV56 @ ( powerset @ SV67 ) )
        = $false )
      | ( ( ~ ( in @ SV20 @ SV56 ) )
        = $true )
      | ( ( ~ ( empty @ SV67 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[632]) ).

thf(706,plain,
    ! [SV92: $i,SV68: $i] :
      ( ( ( ~ ( in @ SV68 @ SV92 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV68 ) @ SV92 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[634]) ).

thf(707,plain,
    ! [SV93: $i,SV69: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV69 ) @ SV93 ) )
        = $true )
      | ( ( in @ SV69 @ SV93 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[635]) ).

thf(708,plain,
    ! [SV94: $i,SV22: $i,SV126: $i] :
      ( ( ~ ( relation @ SV126 )
        | ~ ( in @ ( ordered_pair @ SV22 @ SV94 ) @ SV126 )
        | ( in @ SV22 @ ( relation_dom @ SV126 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[636]) ).

thf(709,plain,
    ! [SV95: $i,SV22: $i,SV127: $i] :
      ( ( ~ ( relation @ SV127 )
        | ~ ( in @ ( ordered_pair @ SV22 @ SV95 ) @ SV127 )
        | ( in @ SV95 @ ( relation_rng @ SV127 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[637]) ).

thf(710,plain,
    ! [SV128: $i,SV96: $i,SV23: $i] :
      ( ( ~ ( ~ ( ! [SY2289: $i,SY2290: $i] :
                    ( ~ ( in @ SY2289 @ SV23 )
                    | ~ ( in @ SY2290 @ SV96 )
                    | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
                     != ( ordered_pair @ SY2289 @ SY2290 ) ) )
                | ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
            | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
                          | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) )
                    | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
                     != ( ordered_pair @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) ) ) )
                | ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) ) )
        | ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[638]) ).

thf(711,plain,
    ! [SV97: $i,SV23: $i,SV129: $i] :
      ( ( ( SV129
         != ( cartesian_product2 @ SV23 @ SV97 ) )
        | ~ ( ~ ! [SY2291: $i] :
                  ( ! [SY2254: $i,SY2255: $i] :
                      ( ~ ( in @ SY2254 @ SV23 )
                      | ~ ( in @ SY2255 @ SV97 )
                      | ( SY2291
                       != ( ordered_pair @ SY2254 @ SY2255 ) ) )
                  | ( in @ SY2291 @ SV129 ) )
            | ~ ! [SY2294: $i] :
                  ( ~ ( in @ SY2294 @ SV129 )
                  | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                            | ~ ( in @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
                      | ( SY2294
                       != ( ordered_pair @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[639]) ).

thf(712,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ~ ( ~ ( ! [SY2257: $i] :
                      ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SY2257 )
                      | ~ ( in @ SY2257 @ SV70 ) )
                  | ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
              | ~ ( ~ ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ ( sK15_SY2048 @ SV98 @ SV70 ) )
                      | ~ ( in @ ( sK15_SY2048 @ SV98 @ SV70 ) @ SV70 ) )
                  | ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) ) ) )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[640]) ).

thf(713,plain,
    ! [SV71: $i,SV99: $i] :
      ( ( ( ( SV99
           != ( union @ SV71 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2258: $i] :
                    ( ! [SY2220: $i] :
                        ( ~ ( in @ SY2258 @ SY2220 )
                        | ~ ( in @ SY2220 @ SV71 ) )
                    | ( in @ SY2258 @ SV99 ) )
              | ~ ! [SY2260: $i] :
                    ( ~ ( in @ SY2260 @ SV99 )
                    | ~ ( ~ ( in @ SY2260 @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) )
                        | ~ ( in @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) @ SV71 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[641]) ).

thf(714,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                      | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) )
                  | ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                      | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) )
            | ~ ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 )
                | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) )
        | ( SV130
          = ( set_union2 @ SV24 @ SV100 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[642]) ).

thf(715,plain,
    ! [SV101: $i,SV24: $i,SV131: $i] :
      ( ( ( SV131
         != ( set_union2 @ SV24 @ SV101 ) )
        | ~ ( ~ ! [SY2295: $i] :
                  ( ~ ( in @ SY2295 @ SV131 )
                  | ( in @ SY2295 @ SV24 )
                  | ( in @ SY2295 @ SV101 ) )
            | ~ ~ ( ~ ! [SY2296: $i] :
                        ( ~ ( in @ SY2296 @ SV24 )
                        | ( in @ SY2296 @ SV131 ) )
                  | ~ ! [SY2297: $i] :
                        ( ~ ( in @ SY2297 @ SV101 )
                        | ( in @ SY2297 @ SV131 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[643]) ).

thf(716,plain,
    ! [SV102: $i,SV72: $i] :
      ( ( ( disjoint @ SV72 @ SV102 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV72 )
              | ~ ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV102 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[644]) ).

thf(717,plain,
    ! [SV103: $i,SV73: $i] :
      ( ( ( ! [SY2266: $i] :
              ( ~ ( in @ SY2266 @ SV73 )
              | ~ ( in @ SY2266 @ SV103 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV73 @ SV103 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[645]) ).

thf(718,plain,
    ! [SV58: $i,SV25: $i] :
      ( ( ( ~ ! [SY2193: $i] :
                ( ~ ( element @ SY2193 @ ( powerset @ ( powerset @ SV25 ) ) )
                | ~ ( ~ ( element @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
                    | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                              | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) )
                          | ~ ( ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                              | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
                | ( SY2193
                  = ( complements_of_subsets @ SV25 @ SV58 ) ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[646]) ).

thf(719,plain,
    ! [SV58: $i,SV25: $i] :
      ( ( ( ~ ! [SY2194: $i] :
                ( ~ ( element @ SY2194 @ ( powerset @ ( powerset @ SV25 ) ) )
                | ( SY2194
                 != ( complements_of_subsets @ SV25 @ SV58 ) )
                | ~ ( ~ ! [SY2195: $i] :
                          ( ~ ( element @ SY2195 @ ( powerset @ SV25 ) )
                          | ~ ( in @ SY2195 @ SY2194 )
                          | ( in @ ( subset_complement @ SV25 @ SY2195 ) @ SV58 ) )
                    | ~ ! [SY2196: $i] :
                          ( ~ ( element @ SY2196 @ ( powerset @ SV25 ) )
                          | ~ ( in @ ( subset_complement @ SV25 @ SY2196 ) @ SV58 )
                          | ( in @ SY2196 @ SY2194 ) ) ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[646]) ).

thf(720,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                      | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                       != SV26 ) )
                  | ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                      | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                       != SV104 ) ) )
            | ~ ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                  = SV26 )
                | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                  = SV104 ) ) )
        | ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[647]) ).

thf(721,plain,
    ! [SV105: $i,SV26: $i,SV133: $i] :
      ( ( ( SV133
         != ( unordered_pair @ SV26 @ SV105 ) )
        | ~ ( ~ ! [SY2298: $i] :
                  ( ~ ( in @ SY2298 @ SV133 )
                  | ( SY2298 = SV26 )
                  | ( SY2298 = SV105 ) )
            | ~ ~ ( ~ ! [SY2299: $i] :
                        ( ( SY2299 != SV26 )
                        | ( in @ SY2299 @ SV133 ) )
                  | ~ ! [SY2300: $i] :
                        ( ( SY2300 != SV105 )
                        | ( in @ SY2300 @ SV133 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[648]) ).

thf(722,plain,
    ! [SV134: $i,SV59: $i,SV27: $i] :
      ( ( ! [SY2301: $i] :
            ( ( ordered_pair @ SV27 @ SV59 )
           != ( ordered_pair @ SV134 @ SY2301 ) )
        | ( SV27 = SV134 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[649]) ).

thf(723,plain,
    ! [SV135: $i,SV59: $i,SV27: $i] :
      ( ( ! [SY2302: $i] :
            ( ( ( ordered_pair @ SV27 @ SV59 )
             != ( ordered_pair @ SV135 @ SY2302 ) )
            | ( SV59 = SY2302 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[650]) ).

thf(724,plain,
    ! [SV60: $i,SV136: $i,SV28: $i] :
      ( ( ! [SY2303: $i] :
            ( ~ ( in @ SV28 @ SV136 )
            | ~ ( in @ SV60 @ SY2303 )
            | ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV136 @ SY2303 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[651]) ).

thf(725,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ~ ! [SY2203: $i] :
              ( ! [SY2204: $i] :
                  ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2203 @ SY2204 ) )
              | ( in @ SV28 @ SY2203 ) )
        | ~ ! [SY2205: $i,SY2206: $i] :
              ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2205 @ SY2206 ) )
              | ( in @ SV60 @ SY2206 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[652]) ).

thf(726,plain,
    ! [SV29: $i,SV106: $i] :
      ( ( ( ~ ( subset @ SV106 @ ( sK4_B @ SV29 ) )
          | ( are_equipotent @ SV106 @ ( sK4_B @ SV29 ) ) )
        = $true )
      | ( ( in @ SV106 @ ( sK4_B @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[653]) ).

thf(727,plain,
    ! [SV29: $i] :
      ( ( ~ ! [SY2137: $i] :
              ( ~ ( ~ ! [SY2138: $i] :
                        ( ~ ( subset @ SY2138 @ SY2137 )
                        | ( in @ SY2138 @ ( sK5_SY2040 @ SY2137 @ SV29 ) ) )
                  | ~ ( in @ ( sK5_SY2040 @ SY2137 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
              | ~ ( in @ SY2137 @ ( sK4_B @ SV29 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[654]) ).

thf(728,plain,
    ! [SV29: $i] :
      ( ( ~ ~ ( ~ ! [SY2139: $i,SY2140: $i] :
                    ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
                    | ~ ( subset @ SY2140 @ SY2139 )
                    | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) )
              | ~ ( in @ SV29 @ ( sK4_B @ SV29 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[654]) ).

thf(729,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
                  | ~ ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) )
              | ~ ( ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
                  | ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) ) ) )
        = $true )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[655]) ).

thf(730,plain,
    ! [SV75: $i,SV108: $i] :
      ( ( ( ( SV108
           != ( powerset @ SV75 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2272: $i] :
                    ( ~ ( in @ SY2272 @ SV108 )
                    | ( subset @ SY2272 @ SV75 ) )
              | ~ ! [SY2273: $i] :
                    ( ~ ( subset @ SY2273 @ SV75 )
                    | ( in @ SY2273 @ SV108 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[656]) ).

thf(731,plain,
    ! [SV30: $i] :
      ( ( ( ! [SY2141: $i] :
              ( ~ ( ~ ( ! [SY2142: $i] :
                          ~ ( in @ ( ordered_pair @ SY2142 @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                      | ~ ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2141 @ SV30 ) @ ( sK10_C @ SY2141 @ SV30 ) ) @ SV30 )
                      | ( in @ ( sK10_C @ SY2141 @ SV30 ) @ SY2141 ) ) )
              | ( SY2141
                = ( relation_rng @ SV30 ) ) ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[657]) ).

thf(732,plain,
    ! [SV30: $i] :
      ( ( ( ! [SY2143: $i] :
              ( ( SY2143
               != ( relation_rng @ SV30 ) )
              | ~ ( ~ ! [SY2144: $i] :
                        ( ! [SY2145: $i] :
                            ~ ( in @ ( ordered_pair @ SY2145 @ SY2144 ) @ SV30 )
                        | ( in @ SY2144 @ SY2143 ) )
                  | ~ ! [SY2146: $i] :
                        ( ~ ( in @ SY2146 @ SY2143 )
                        | ( in @ ( ordered_pair @ ( sK9_D @ SY2146 @ SY2143 @ SV30 ) @ SY2146 ) @ SV30 ) ) ) ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[658]) ).

thf(733,plain,
    ! [SV31: $i,SV61: $i] :
      ( ( ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV31 )
        = $true )
      | ( ( element @ SV31 @ ( powerset @ SV61 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[659]) ).

thf(734,plain,
    ! [SV31: $i,SV61: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV61 ) )
        = $true )
      | ( ( element @ SV31 @ ( powerset @ SV61 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[660]) ).

thf(735,plain,
    ! [SV76: $i,SV109: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV76 )
              | ~ ~ ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV109 ) ) )
        = $true )
      | ( ( subset @ SV76 @ SV109 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[661]) ).

thf(736,plain,
    ! [SV110: $i,SV77: $i] :
      ( ( ( ~ ( subset @ SV77 @ SV110 ) )
        = $true )
      | ( ( ! [SY2274: $i] :
              ( ~ ( in @ SY2274 @ SV77 )
              | ( in @ SY2274 @ SV110 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[662]) ).

thf(737,plain,
    ! [SV111: $i,SV137: $i,SV32: $i] :
      ( ( ~ ( in @ SV32 @ SV137 )
        | ~ ( in @ SV111 @ SV137 )
        | ( subset @ ( unordered_pair @ SV32 @ SV111 ) @ SV137 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[663]) ).

thf(738,plain,
    ! [SV32: $i] :
      ( ( ~ ! [SY2150: $i,SY2151: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2150 ) @ SY2151 )
              | ( in @ SV32 @ SY2151 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[664]) ).

thf(739,plain,
    ! [SV32: $i] :
      ( ( ~ ! [SY2152: $i,SY2153: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2152 ) @ SY2153 )
              | ( in @ SY2152 @ SY2153 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[664]) ).

thf(740,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                      | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                  | ~ ( ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX0 )
                          | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                      | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[665]) ).

thf(741,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ SX2 @ ( sK31_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)],[666]) ).

thf(742,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ( SX1 = empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[667]) ).

thf(743,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1 != empty_set )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[668]) ).

thf(744,plain,
    ! [SV33: $i] :
      ( ( ( ! [SY2154: $i] :
              ( ~ ( ~ ( ! [SY2155: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ SY2155 ) @ SV33 )
                      | ~ ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2154 @ SV33 ) @ ( sK18_SY2050 @ SY2154 @ SV33 ) ) @ SV33 )
                      | ( in @ ( sK17_C @ SY2154 @ SV33 ) @ SY2154 ) ) )
              | ( SY2154
                = ( relation_dom @ SV33 ) ) ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[669]) ).

thf(745,plain,
    ! [SV33: $i] :
      ( ( ( ! [SY2156: $i] :
              ( ( SY2156
               != ( relation_dom @ SV33 ) )
              | ~ ( ~ ! [SY2157: $i] :
                        ( ! [SY2158: $i] :
                            ~ ( in @ ( ordered_pair @ SY2157 @ SY2158 ) @ SV33 )
                        | ( in @ SY2157 @ SY2156 ) )
                  | ~ ! [SY2159: $i] :
                        ( ~ ( in @ SY2159 @ SY2156 )
                        | ( in @ ( ordered_pair @ SY2159 @ ( sK16_D @ SY2159 @ SY2156 @ SV33 ) ) @ SV33 ) ) ) ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[670]) ).

thf(746,plain,
    ! [SV112: $i,SV78: $i] :
      ( ( ( ~ ( in @ SV78 @ SV112 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV78 ) @ SV112 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[671]) ).

thf(747,plain,
    ! [SV113: $i,SV79: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV79 ) @ SV113 ) )
        = $true )
      | ( ( in @ SV79 @ SV113 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[672]) ).

thf(748,plain,
    ! [SV34: $i,SV114: $i] :
      ( ( ( ~ ( subset @ SV114 @ ( sK39_B @ SV34 ) )
          | ( are_equipotent @ SV114 @ ( sK39_B @ SV34 ) ) )
        = $true )
      | ( ( in @ SV114 @ ( sK39_B @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[673]) ).

thf(749,plain,
    ! [SV34: $i] :
      ( ( ~ ! [SY2161: $i] :
              ( ~ ( in @ SY2161 @ ( sK39_B @ SV34 ) )
              | ( in @ ( powerset @ SY2161 ) @ ( sK39_B @ SV34 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[674]) ).

thf(750,plain,
    ! [SV34: $i] :
      ( ( ~ ~ ( ~ ! [SY2162: $i,SY2163: $i] :
                    ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
                    | ~ ( subset @ SY2163 @ SY2162 )
                    | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) )
              | ~ ( in @ SV34 @ ( sK39_B @ SV34 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[674]) ).

thf(751,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( ~ ( ~ ( ( ( sK30_C @ SV115 @ SV80 )
                   != SV80 )
                  | ~ ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) )
              | ~ ( ( ( sK30_C @ SV115 @ SV80 )
                    = SV80 )
                  | ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) ) ) )
        = $true )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[675]) ).

thf(752,plain,
    ! [SV81: $i,SV116: $i] :
      ( ( ( ( SV116
           != ( singleton @ SV81 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2276: $i] :
                    ( ( SY2276 != SV81 )
                    | ( in @ SY2276 @ SV116 ) )
              | ~ ! [SY2277: $i] :
                    ( ~ ( in @ SY2277 @ SV116 )
                    | ( SY2277 = SV81 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[676]) ).

thf(753,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
          | ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) )
        = $true )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[677]) ).

thf(754,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
          | ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) )
        = $true )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[678]) ).

thf(755,plain,
    ! [SV63: $i,SV138: $i,SV36: $i] :
      ( ( ! [SY2304: $i] :
            ( ~ ( in @ SV36 @ SV138 )
            | ~ ( in @ SV63 @ SY2304 )
            | ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV138 @ SY2304 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[679]) ).

thf(756,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ~ ! [SY2209: $i] :
              ( ! [SY2210: $i] :
                  ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2209 @ SY2210 ) )
              | ( in @ SV36 @ SY2209 ) )
        | ~ ! [SY2211: $i,SY2212: $i] :
              ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2211 @ SY2212 ) )
              | ( in @ SV63 @ SY2212 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[680]) ).

thf(757,plain,
    ! [SV82: $i] :
      ( ( ( ~ ! [SY2238: $i,SY2239: $i] :
                ( ( sK36_B @ SV82 )
               != ( ordered_pair @ SY2238 @ SY2239 ) )
          | ~ ( in @ ( sK36_B @ SV82 ) @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[681]) ).

thf(758,plain,
    ! [SV83: $i] :
      ( ( ( relation @ SV83 )
        = $false )
      | ( ( ! [SY2240: $i] :
              ( ( SY2240
                = ( ordered_pair @ ( sK34_C @ SY2240 @ SV83 ) @ ( sK35_SY2059 @ SY2240 @ SV83 ) ) )
              | ~ ( in @ SY2240 @ SV83 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[682]) ).

thf(759,plain,
    ! [SV37: $i] :
      ( ( ( ! [SY2172: $i] :
              ( ~ ( relation @ SY2172 )
              | ~ ( subset @ SV37 @ SY2172 )
              | ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SY2172 ) ) ) )
        = $true )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[683]) ).

thf(760,plain,
    ! [SV37: $i] :
      ( ( ( ! [SY2173: $i] :
              ( ~ ( relation @ SY2173 )
              | ~ ( subset @ SV37 @ SY2173 )
              | ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SY2173 ) ) ) )
        = $true )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[684]) ).

thf(761,plain,
    ! [SV117: $i,SV84: $i] :
      ( ( ( disjoint @ SV84 @ SV117 )
        = $true )
      | ( ( in @ ( sK37_C @ SV117 @ SV84 ) @ ( set_intersection2 @ SV84 @ SV117 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[685]) ).

thf(762,plain,
    ! [SV118: $i,SV85: $i] :
      ( ( ( ! [SY2278: $i] :
              ~ ( in @ SY2278 @ ( set_intersection2 @ SV85 @ SV118 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV85 @ SV118 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[686]) ).

thf(763,plain,
    ! [SV119: $i,SV86: $i] :
      ( ( ( ( ( set_difference @ SV86 @ ( singleton @ SV119 ) )
           != SV86 ) )
        = $true )
      | ( ( ~ ( in @ SV119 @ SV86 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[687]) ).

thf(764,plain,
    ! [SV87: $i,SV120: $i] :
      ( ( ( in @ SV120 @ SV87 )
        = $true )
      | ( ( ( set_difference @ SV87 @ ( singleton @ SV120 ) )
          = SV87 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[688]) ).

thf(765,plain,
    ! [SV89: $i] :
      ( ( ( SV89 = empty_set )
        = $false )
      | ( ( ! [SY2246: $i] :
              ~ ( in @ SY2246 @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[690]) ).

thf(766,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[691]) ).

thf(767,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( in @ SX1 @ SX0 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[692]) ).

thf(768,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( empty @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[693]) ).

thf(769,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( empty @ SX1 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[694]) ).

thf(770,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
                | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
                | ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
            | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
                      | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
                  | ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
                      | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) ) ) )
        | ( SV139
          = ( set_difference @ SV38 @ SV121 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[695]) ).

thf(771,plain,
    ! [SV122: $i,SV38: $i,SV140: $i] :
      ( ( ( SV140
         != ( set_difference @ SV38 @ SV122 ) )
        | ~ ( ~ ! [SY2305: $i] :
                  ( ~ ( in @ SY2305 @ SV38 )
                  | ( in @ SY2305 @ SV122 )
                  | ( in @ SY2305 @ SV140 ) )
            | ~ ~ ( ~ ! [SY2306: $i] :
                        ( ~ ( in @ SY2306 @ SV140 )
                        | ( in @ SY2306 @ SV38 ) )
                  | ~ ! [SY2307: $i] :
                        ( ~ ( in @ SY2307 @ SV140 )
                        | ~ ( in @ SY2307 @ SV122 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[696]) ).

thf(772,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
                | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
                | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
            | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
                      | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
                  | ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
                      | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) ) ) )
        | ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[697]) ).

thf(773,plain,
    ! [SV124: $i,SV39: $i,SV142: $i] :
      ( ( ( SV142
         != ( set_intersection2 @ SV39 @ SV124 ) )
        | ~ ( ~ ! [SY2308: $i] :
                  ( ~ ( in @ SY2308 @ SV39 )
                  | ~ ( in @ SY2308 @ SV124 )
                  | ( in @ SY2308 @ SV142 ) )
            | ~ ~ ( ~ ! [SY2309: $i] :
                        ( ~ ( in @ SY2309 @ SV142 )
                        | ( in @ SY2309 @ SV39 ) )
                  | ~ ! [SY2310: $i] :
                        ( ~ ( in @ SY2310 @ SV142 )
                        | ( in @ SY2310 @ SV124 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[698]) ).

thf(774,plain,
    ! [SV4: $i,SV43: $i,SV90: $i] :
      ( ( ( in @ SV90 @ SV43 )
        = $false )
      | ( ( in @ SV90 @ SV4 )
        = $true )
      | ( ( element @ SV43 @ ( powerset @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[699]) ).

thf(775,plain,
    ! [SV64: $i,SV9: $i,SV125: $i] :
      ( ( ( ~ ( element @ SV125 @ SV9 ) )
        = $true )
      | ( ( ( in @ SV125 @ SV64 )
          | ( in @ SV125 @ ( subset_complement @ SV9 @ SV64 ) ) )
        = $true )
      | ( ( element @ SV64 @ ( powerset @ SV9 ) )
        = $false )
      | ( ( SV9 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[701]) ).

thf(776,plain,
    ! [SV65: $i,SV10: $i,SV47: $i] :
      ( ( ( in @ SV47 @ ( subset_complement @ SV10 @ SV65 ) )
        = $false )
      | ( ( ~ ( in @ SV47 @ SV65 ) )
        = $true )
      | ( ( element @ SV65 @ ( powerset @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[702]) ).

thf(777,plain,
    ! [SV66: $i,SV55: $i,SV19: $i] :
      ( ( ( in @ SV19 @ SV55 )
        = $false )
      | ( ( element @ SV55 @ ( powerset @ SV66 ) )
        = $false )
      | ( ( element @ SV19 @ SV66 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[704]) ).

thf(778,plain,
    ! [SV67: $i,SV56: $i,SV20: $i] :
      ( ( ( in @ SV20 @ SV56 )
        = $false )
      | ( ( element @ SV56 @ ( powerset @ SV67 ) )
        = $false )
      | ( ( ~ ( empty @ SV67 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[705]) ).

thf(779,plain,
    ! [SV92: $i,SV68: $i] :
      ( ( ( in @ SV68 @ SV92 )
        = $false )
      | ( ( subset @ ( singleton @ SV68 ) @ SV92 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[706]) ).

thf(780,plain,
    ! [SV93: $i,SV69: $i] :
      ( ( ( subset @ ( singleton @ SV69 ) @ SV93 )
        = $false )
      | ( ( in @ SV69 @ SV93 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[707]) ).

thf(781,plain,
    ! [SV94: $i,SV22: $i,SV126: $i] :
      ( ( ( ~ ( relation @ SV126 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV22 @ SV94 ) @ SV126 )
          | ( in @ SV22 @ ( relation_dom @ SV126 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[708]) ).

thf(782,plain,
    ! [SV95: $i,SV22: $i,SV127: $i] :
      ( ( ( ~ ( relation @ SV127 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV22 @ SV95 ) @ SV127 )
          | ( in @ SV95 @ ( relation_rng @ SV127 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[709]) ).

thf(783,plain,
    ! [SV128: $i,SV96: $i,SV23: $i] :
      ( ( ( ~ ( ~ ( ! [SY2289: $i,SY2290: $i] :
                      ( ~ ( in @ SY2289 @ SV23 )
                      | ~ ( in @ SY2290 @ SV96 )
                      | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
                       != ( ordered_pair @ SY2289 @ SY2290 ) ) )
                  | ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
              | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
                            | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) )
                      | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
                       != ( ordered_pair @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) ) ) )
                  | ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) ) ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[710]) ).

thf(784,plain,
    ! [SV97: $i,SV23: $i,SV129: $i] :
      ( ( ( ( SV129
           != ( cartesian_product2 @ SV23 @ SV97 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2291: $i] :
                    ( ! [SY2254: $i,SY2255: $i] :
                        ( ~ ( in @ SY2254 @ SV23 )
                        | ~ ( in @ SY2255 @ SV97 )
                        | ( SY2291
                         != ( ordered_pair @ SY2254 @ SY2255 ) ) )
                    | ( in @ SY2291 @ SV129 ) )
              | ~ ! [SY2294: $i] :
                    ( ~ ( in @ SY2294 @ SV129 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                              | ~ ( in @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
                        | ( SY2294
                         != ( ordered_pair @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[711]) ).

thf(785,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ~ ( ! [SY2257: $i] :
                  ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SY2257 )
                  | ~ ( in @ SY2257 @ SV70 ) )
              | ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
          | ~ ( ~ ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ ( sK15_SY2048 @ SV98 @ SV70 ) )
                  | ~ ( in @ ( sK15_SY2048 @ SV98 @ SV70 ) @ SV70 ) )
              | ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) ) )
        = $false )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[712]) ).

thf(786,plain,
    ! [SV71: $i,SV99: $i] :
      ( ( ( SV99
          = ( union @ SV71 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2258: $i] :
                    ( ! [SY2220: $i] :
                        ( ~ ( in @ SY2258 @ SY2220 )
                        | ~ ( in @ SY2220 @ SV71 ) )
                    | ( in @ SY2258 @ SV99 ) )
              | ~ ! [SY2260: $i] :
                    ( ~ ( in @ SY2260 @ SV99 )
                    | ~ ( ~ ( in @ SY2260 @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) )
                        | ~ ( in @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) @ SV71 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[713]) ).

thf(787,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                        | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) )
                    | ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                        | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) )
              | ~ ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                  | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 )
                  | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[714]) ).

thf(788,plain,
    ! [SV101: $i,SV24: $i,SV131: $i] :
      ( ( ( ( SV131
           != ( set_union2 @ SV24 @ SV101 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2295: $i] :
                    ( ~ ( in @ SY2295 @ SV131 )
                    | ( in @ SY2295 @ SV24 )
                    | ( in @ SY2295 @ SV101 ) )
              | ~ ~ ( ~ ! [SY2296: $i] :
                          ( ~ ( in @ SY2296 @ SV24 )
                          | ( in @ SY2296 @ SV131 ) )
                    | ~ ! [SY2297: $i] :
                          ( ~ ( in @ SY2297 @ SV101 )
                          | ( in @ SY2297 @ SV131 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[715]) ).

thf(789,plain,
    ! [SV72: $i,SV102: $i] :
      ( ( ( ~ ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV72 )
          | ~ ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV102 ) )
        = $false )
      | ( ( disjoint @ SV72 @ SV102 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[716]) ).

thf(790,plain,
    ! [SV103: $i,SV73: $i,SV143: $i] :
      ( ( ( ~ ( in @ SV143 @ SV73 )
          | ~ ( in @ SV143 @ SV103 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV73 @ SV103 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[717]) ).

thf(791,plain,
    ! [SV58: $i,SV25: $i] :
      ( ( ( ! [SY2193: $i] :
              ( ~ ( element @ SY2193 @ ( powerset @ ( powerset @ SV25 ) ) )
              | ~ ( ~ ( element @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
                  | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                            | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) )
                        | ~ ( ( in @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) @ SY2193 )
                            | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SY2193 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
              | ( SY2193
                = ( complements_of_subsets @ SV25 @ SV58 ) ) ) )
        = $true )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[718]) ).

thf(792,plain,
    ! [SV58: $i,SV25: $i] :
      ( ( ( ! [SY2194: $i] :
              ( ~ ( element @ SY2194 @ ( powerset @ ( powerset @ SV25 ) ) )
              | ( SY2194
               != ( complements_of_subsets @ SV25 @ SV58 ) )
              | ~ ( ~ ! [SY2195: $i] :
                        ( ~ ( element @ SY2195 @ ( powerset @ SV25 ) )
                        | ~ ( in @ SY2195 @ SY2194 )
                        | ( in @ ( subset_complement @ SV25 @ SY2195 ) @ SV58 ) )
                  | ~ ! [SY2196: $i] :
                        ( ~ ( element @ SY2196 @ ( powerset @ SV25 ) )
                        | ~ ( in @ ( subset_complement @ SV25 @ SY2196 ) @ SV58 )
                        | ( in @ SY2196 @ SY2194 ) ) ) ) )
        = $true )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[719]) ).

thf(793,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                        | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                         != SV26 ) )
                    | ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                        | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                         != SV104 ) ) )
              | ~ ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                  | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                    = SV26 )
                  | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                    = SV104 ) ) ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[720]) ).

thf(794,plain,
    ! [SV105: $i,SV26: $i,SV133: $i] :
      ( ( ( ( SV133
           != ( unordered_pair @ SV26 @ SV105 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2298: $i] :
                    ( ~ ( in @ SY2298 @ SV133 )
                    | ( SY2298 = SV26 )
                    | ( SY2298 = SV105 ) )
              | ~ ~ ( ~ ! [SY2299: $i] :
                          ( ( SY2299 != SV26 )
                          | ( in @ SY2299 @ SV133 ) )
                    | ~ ! [SY2300: $i] :
                          ( ( SY2300 != SV105 )
                          | ( in @ SY2300 @ SV133 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[721]) ).

thf(795,plain,
    ! [SV134: $i,SV59: $i,SV27: $i] :
      ( ( ( ! [SY2301: $i] :
              ( ( ordered_pair @ SV27 @ SV59 )
             != ( ordered_pair @ SV134 @ SY2301 ) ) )
        = $true )
      | ( ( SV27 = SV134 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[722]) ).

thf(796,plain,
    ! [SV144: $i,SV135: $i,SV59: $i,SV27: $i] :
      ( ( ( ( ordered_pair @ SV27 @ SV59 )
         != ( ordered_pair @ SV135 @ SV144 ) )
        | ( SV59 = SV144 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[723]) ).

thf(797,plain,
    ! [SV145: $i,SV60: $i,SV136: $i,SV28: $i] :
      ( ( ~ ( in @ SV28 @ SV136 )
        | ~ ( in @ SV60 @ SV145 )
        | ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV136 @ SV145 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[724]) ).

thf(798,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ~ ! [SY2203: $i] :
              ( ! [SY2204: $i] :
                  ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2203 @ SY2204 ) )
              | ( in @ SV28 @ SY2203 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[725]) ).

thf(799,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ~ ! [SY2205: $i,SY2206: $i] :
              ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2205 @ SY2206 ) )
              | ( in @ SV60 @ SY2206 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[725]) ).

thf(800,plain,
    ! [SV29: $i,SV106: $i] :
      ( ( ( ~ ( subset @ SV106 @ ( sK4_B @ SV29 ) ) )
        = $true )
      | ( ( are_equipotent @ SV106 @ ( sK4_B @ SV29 ) )
        = $true )
      | ( ( in @ SV106 @ ( sK4_B @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[726]) ).

thf(801,plain,
    ! [SV29: $i] :
      ( ( ! [SY2137: $i] :
            ( ~ ( ~ ! [SY2138: $i] :
                      ( ~ ( subset @ SY2138 @ SY2137 )
                      | ( in @ SY2138 @ ( sK5_SY2040 @ SY2137 @ SV29 ) ) )
                | ~ ( in @ ( sK5_SY2040 @ SY2137 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
            | ~ ( in @ SY2137 @ ( sK4_B @ SV29 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[727]) ).

thf(802,plain,
    ! [SV29: $i] :
      ( ( ~ ( ~ ! [SY2139: $i,SY2140: $i] :
                  ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
                  | ~ ( subset @ SY2140 @ SY2139 )
                  | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) )
            | ~ ( in @ SV29 @ ( sK4_B @ SV29 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[728]) ).

thf(803,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
              | ~ ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) )
          | ~ ( ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
              | ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) ) )
        = $false )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[729]) ).

thf(804,plain,
    ! [SV75: $i,SV108: $i] :
      ( ( ( SV108
          = ( powerset @ SV75 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2272: $i] :
                    ( ~ ( in @ SY2272 @ SV108 )
                    | ( subset @ SY2272 @ SV75 ) )
              | ~ ! [SY2273: $i] :
                    ( ~ ( subset @ SY2273 @ SV75 )
                    | ( in @ SY2273 @ SV108 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[730]) ).

thf(805,plain,
    ! [SV30: $i,SV146: $i] :
      ( ( ( ~ ( ~ ( ! [SY2311: $i] :
                      ~ ( in @ ( ordered_pair @ SY2311 @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
                  | ~ ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV146 @ SV30 ) @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
                  | ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) ) )
          | ( SV146
            = ( relation_rng @ SV30 ) ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[731]) ).

thf(806,plain,
    ! [SV30: $i,SV147: $i] :
      ( ( ( ( SV147
           != ( relation_rng @ SV30 ) )
          | ~ ( ~ ! [SY2312: $i] :
                    ( ! [SY2145: $i] :
                        ~ ( in @ ( ordered_pair @ SY2145 @ SY2312 ) @ SV30 )
                    | ( in @ SY2312 @ SV147 ) )
              | ~ ! [SY2314: $i] :
                    ( ~ ( in @ SY2314 @ SV147 )
                    | ( in @ ( ordered_pair @ ( sK9_D @ SY2314 @ SV147 @ SV30 ) @ SY2314 ) @ SV30 ) ) ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[732]) ).

thf(807,plain,
    ! [SV31: $i,SV61: $i] :
      ( ( ( in @ ( sK40_C @ SV61 @ SV31 ) @ SV61 )
        = $false )
      | ( ( element @ SV31 @ ( powerset @ SV61 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[734]) ).

thf(808,plain,
    ! [SV76: $i,SV109: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV76 )
          | ~ ~ ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV109 ) )
        = $false )
      | ( ( subset @ SV76 @ SV109 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[735]) ).

thf(809,plain,
    ! [SV110: $i,SV77: $i] :
      ( ( ( subset @ SV77 @ SV110 )
        = $false )
      | ( ( ! [SY2274: $i] :
              ( ~ ( in @ SY2274 @ SV77 )
              | ( in @ SY2274 @ SV110 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[736]) ).

thf(810,plain,
    ! [SV111: $i,SV137: $i,SV32: $i] :
      ( ( ( ~ ( in @ SV32 @ SV137 )
          | ~ ( in @ SV111 @ SV137 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV32 @ SV111 ) @ SV137 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[737]) ).

thf(811,plain,
    ! [SV32: $i] :
      ( ( ! [SY2150: $i,SY2151: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2150 ) @ SY2151 )
            | ( in @ SV32 @ SY2151 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[738]) ).

thf(812,plain,
    ! [SV32: $i] :
      ( ( ! [SY2152: $i,SY2153: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV32 @ SY2152 ) @ SY2153 )
            | ( in @ SY2152 @ SY2153 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[739]) ).

thf(813,plain,
    ! [SV148: $i] :
      ( ( ( SV148 = empty_set )
        | ! [SY2315: $i] :
            ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SY2315 @ SV148 ) @ SV148 )
                        | ~ ~ ( in @ ( sK32_C @ SY2315 @ SV148 ) @ ( sK33_SY2057 @ SY2315 @ SV148 ) ) )
                    | ~ ( in @ ( sK32_C @ SY2315 @ SV148 ) @ SY2315 ) )
                | ~ ( ! [SY2316: $i] :
                        ( ~ ( in @ SY2316 @ SV148 )
                        | ( in @ ( sK32_C @ SY2315 @ SV148 ) @ SY2316 ) )
                    | ( in @ ( sK32_C @ SY2315 @ SV148 ) @ SY2315 ) ) )
            | ( SY2315
              = ( set_meet @ SV148 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[740]) ).

thf(814,plain,
    ! [SV149: $i] :
      ( ( ( SV149 = empty_set )
        | ! [SY2317: $i] :
            ( ( SY2317
             != ( set_meet @ SV149 ) )
            | ~ ( ~ ! [SY2318: $i] :
                      ( ~ ( ~ ( in @ ( sK31_D @ SY2318 @ SY2317 @ SV149 ) @ SV149 )
                          | ~ ~ ( in @ SY2318 @ ( sK31_D @ SY2318 @ SY2317 @ SV149 ) ) )
                      | ( in @ SY2318 @ SY2317 ) )
                | ~ ! [SY2319: $i] :
                      ( ~ ( in @ SY2319 @ SY2317 )
                      | ! [SY2320: $i] :
                          ( ~ ( in @ SY2320 @ SV149 )
                          | ( in @ SY2319 @ SY2320 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[741]) ).

thf(815,plain,
    ! [SV150: $i] :
      ( ( ( SV150 != empty_set )
        | ! [SY2321: $i] :
            ( ( SY2321
             != ( set_meet @ SV150 ) )
            | ( SY2321 = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[742]) ).

thf(816,plain,
    ! [SV151: $i] :
      ( ( ( SV151 != empty_set )
        | ! [SY2322: $i] :
            ( ( SY2322 != empty_set )
            | ( SY2322
              = ( set_meet @ SV151 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[743]) ).

thf(817,plain,
    ! [SV33: $i,SV152: $i] :
      ( ( ( ~ ( ~ ( ! [SY2323: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ SY2323 ) @ SV33 )
                  | ~ ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ ( sK18_SY2050 @ SV152 @ SV33 ) ) @ SV33 )
                  | ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) ) )
          | ( SV152
            = ( relation_dom @ SV33 ) ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[744]) ).

thf(818,plain,
    ! [SV33: $i,SV153: $i] :
      ( ( ( ( SV153
           != ( relation_dom @ SV33 ) )
          | ~ ( ~ ! [SY2324: $i] :
                    ( ! [SY2158: $i] :
                        ~ ( in @ ( ordered_pair @ SY2324 @ SY2158 ) @ SV33 )
                    | ( in @ SY2324 @ SV153 ) )
              | ~ ! [SY2326: $i] :
                    ( ~ ( in @ SY2326 @ SV153 )
                    | ( in @ ( ordered_pair @ SY2326 @ ( sK16_D @ SY2326 @ SV153 @ SV33 ) ) @ SV33 ) ) ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[745]) ).

thf(819,plain,
    ! [SV112: $i,SV78: $i] :
      ( ( ( in @ SV78 @ SV112 )
        = $false )
      | ( ( subset @ ( singleton @ SV78 ) @ SV112 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[746]) ).

thf(820,plain,
    ! [SV113: $i,SV79: $i] :
      ( ( ( subset @ ( singleton @ SV79 ) @ SV113 )
        = $false )
      | ( ( in @ SV79 @ SV113 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[747]) ).

thf(821,plain,
    ! [SV34: $i,SV114: $i] :
      ( ( ( ~ ( subset @ SV114 @ ( sK39_B @ SV34 ) ) )
        = $true )
      | ( ( are_equipotent @ SV114 @ ( sK39_B @ SV34 ) )
        = $true )
      | ( ( in @ SV114 @ ( sK39_B @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[748]) ).

thf(822,plain,
    ! [SV34: $i] :
      ( ( ! [SY2161: $i] :
            ( ~ ( in @ SY2161 @ ( sK39_B @ SV34 ) )
            | ( in @ ( powerset @ SY2161 ) @ ( sK39_B @ SV34 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[749]) ).

thf(823,plain,
    ! [SV34: $i] :
      ( ( ~ ( ~ ! [SY2162: $i,SY2163: $i] :
                  ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
                  | ~ ( subset @ SY2163 @ SY2162 )
                  | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) )
            | ~ ( in @ SV34 @ ( sK39_B @ SV34 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[750]) ).

thf(824,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( ~ ( ( ( sK30_C @ SV115 @ SV80 )
               != SV80 )
              | ~ ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) )
          | ~ ( ( ( sK30_C @ SV115 @ SV80 )
                = SV80 )
              | ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) ) )
        = $false )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[751]) ).

thf(825,plain,
    ! [SV81: $i,SV116: $i] :
      ( ( ( SV116
          = ( singleton @ SV81 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2276: $i] :
                    ( ( SY2276 != SV81 )
                    | ( in @ SY2276 @ SV116 ) )
              | ~ ! [SY2277: $i] :
                    ( ~ ( in @ SY2277 @ SV116 )
                    | ( SY2277 = SV81 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[752]) ).

thf(826,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 ) )
        = $true )
      | ( ( ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) )
        = $true )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[753]) ).

thf(827,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
        = $true )
      | ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 )
        = $true )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[754]) ).

thf(828,plain,
    ! [SV154: $i,SV63: $i,SV138: $i,SV36: $i] :
      ( ( ~ ( in @ SV36 @ SV138 )
        | ~ ( in @ SV63 @ SV154 )
        | ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV138 @ SV154 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[755]) ).

thf(829,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ~ ! [SY2209: $i] :
              ( ! [SY2210: $i] :
                  ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2209 @ SY2210 ) )
              | ( in @ SV36 @ SY2209 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[756]) ).

thf(830,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ~ ! [SY2211: $i,SY2212: $i] :
              ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2211 @ SY2212 ) )
              | ( in @ SV63 @ SY2212 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[756]) ).

thf(831,plain,
    ! [SV82: $i] :
      ( ( ( ~ ! [SY2238: $i,SY2239: $i] :
                ( ( sK36_B @ SV82 )
               != ( ordered_pair @ SY2238 @ SY2239 ) ) )
        = $false )
      | ( ( relation @ SV82 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[757]) ).

thf(832,plain,
    ! [SV82: $i] :
      ( ( ( ~ ( in @ ( sK36_B @ SV82 ) @ SV82 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[757]) ).

thf(833,plain,
    ! [SV83: $i,SV155: $i] :
      ( ( ( ( SV155
            = ( ordered_pair @ ( sK34_C @ SV155 @ SV83 ) @ ( sK35_SY2059 @ SV155 @ SV83 ) ) )
          | ~ ( in @ SV155 @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[758]) ).

thf(834,plain,
    ! [SV37: $i,SV156: $i] :
      ( ( ( ~ ( relation @ SV156 )
          | ~ ( subset @ SV37 @ SV156 )
          | ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SV156 ) ) )
        = $true )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[759]) ).

thf(835,plain,
    ! [SV37: $i,SV157: $i] :
      ( ( ( ~ ( relation @ SV157 )
          | ~ ( subset @ SV37 @ SV157 )
          | ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SV157 ) ) )
        = $true )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[760]) ).

thf(836,plain,
    ! [SV118: $i,SV85: $i,SV158: $i] :
      ( ( ( ~ ( in @ SV158 @ ( set_intersection2 @ SV85 @ SV118 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV85 @ SV118 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[762]) ).

thf(837,plain,
    ! [SV119: $i,SV86: $i] :
      ( ( ( ( set_difference @ SV86 @ ( singleton @ SV119 ) )
          = SV86 )
        = $false )
      | ( ( ~ ( in @ SV119 @ SV86 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[763]) ).

thf(838,plain,
    ! [SV89: $i,SV159: $i] :
      ( ( ( ~ ( in @ SV159 @ SV89 ) )
        = $true )
      | ( ( SV89 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[765]) ).

thf(839,plain,
    ! [SV160: $i] :
      ( ( ( empty @ SV160 )
        | ! [SY2327: $i] :
            ( ~ ( element @ SY2327 @ SV160 )
            | ( in @ SY2327 @ SV160 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[766]) ).

thf(840,plain,
    ! [SV161: $i] :
      ( ( ( empty @ SV161 )
        | ! [SY2328: $i] :
            ( ~ ( in @ SY2328 @ SV161 )
            | ( element @ SY2328 @ SV161 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[767]) ).

thf(841,plain,
    ! [SV162: $i] :
      ( ( ~ ( empty @ SV162 )
        | ! [SY2329: $i] :
            ( ~ ( element @ SY2329 @ SV162 )
            | ( empty @ SY2329 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[768]) ).

thf(842,plain,
    ! [SV163: $i] :
      ( ( ~ ( empty @ SV163 )
        | ! [SY2330: $i] :
            ( ~ ( empty @ SY2330 )
            | ( element @ SY2330 @ SV163 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[769]) ).

thf(843,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
                  | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
                  | ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
              | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
                        | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
                    | ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
                        | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) ) ) ) )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[770]) ).

thf(844,plain,
    ! [SV122: $i,SV38: $i,SV140: $i] :
      ( ( ( ( SV140
           != ( set_difference @ SV38 @ SV122 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2305: $i] :
                    ( ~ ( in @ SY2305 @ SV38 )
                    | ( in @ SY2305 @ SV122 )
                    | ( in @ SY2305 @ SV140 ) )
              | ~ ~ ( ~ ! [SY2306: $i] :
                          ( ~ ( in @ SY2306 @ SV140 )
                          | ( in @ SY2306 @ SV38 ) )
                    | ~ ! [SY2307: $i] :
                          ( ~ ( in @ SY2307 @ SV140 )
                          | ~ ( in @ SY2307 @ SV122 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[771]) ).

thf(845,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
                  | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
                  | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
              | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
                        | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
                    | ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
                        | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) ) ) ) )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[772]) ).

thf(846,plain,
    ! [SV124: $i,SV39: $i,SV142: $i] :
      ( ( ( ( SV142
           != ( set_intersection2 @ SV39 @ SV124 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2308: $i] :
                    ( ~ ( in @ SY2308 @ SV39 )
                    | ~ ( in @ SY2308 @ SV124 )
                    | ( in @ SY2308 @ SV142 ) )
              | ~ ~ ( ~ ! [SY2309: $i] :
                          ( ~ ( in @ SY2309 @ SV142 )
                          | ( in @ SY2309 @ SV39 ) )
                    | ~ ! [SY2310: $i] :
                          ( ~ ( in @ SY2310 @ SV142 )
                          | ( in @ SY2310 @ SV124 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[773]) ).

thf(847,plain,
    ! [SV64: $i,SV9: $i,SV125: $i] :
      ( ( ( element @ SV125 @ SV9 )
        = $false )
      | ( ( ( in @ SV125 @ SV64 )
          | ( in @ SV125 @ ( subset_complement @ SV9 @ SV64 ) ) )
        = $true )
      | ( ( element @ SV64 @ ( powerset @ SV9 ) )
        = $false )
      | ( ( SV9 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[775]) ).

thf(848,plain,
    ! [SV10: $i,SV65: $i,SV47: $i] :
      ( ( ( in @ SV47 @ SV65 )
        = $false )
      | ( ( in @ SV47 @ ( subset_complement @ SV10 @ SV65 ) )
        = $false )
      | ( ( element @ SV65 @ ( powerset @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[776]) ).

thf(849,plain,
    ! [SV20: $i,SV56: $i,SV67: $i] :
      ( ( ( empty @ SV67 )
        = $false )
      | ( ( element @ SV56 @ ( powerset @ SV67 ) )
        = $false )
      | ( ( in @ SV20 @ SV56 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[778]) ).

thf(850,plain,
    ! [SV94: $i,SV22: $i,SV126: $i] :
      ( ( ( relation @ SV126 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV22 @ SV94 ) @ SV126 )
          | ( in @ SV22 @ ( relation_dom @ SV126 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[781]) ).

thf(851,plain,
    ! [SV95: $i,SV22: $i,SV127: $i] :
      ( ( ( relation @ SV127 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV22 @ SV95 ) @ SV127 )
          | ( in @ SV95 @ ( relation_rng @ SV127 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[782]) ).

thf(852,plain,
    ! [SV128: $i,SV96: $i,SV23: $i] :
      ( ( ( ~ ( ! [SY2289: $i,SY2290: $i] :
                  ( ~ ( in @ SY2289 @ SV23 )
                  | ~ ( in @ SY2290 @ SV96 )
                  | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
                   != ( ordered_pair @ SY2289 @ SY2290 ) ) )
              | ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
          | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
                        | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) )
                  | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
                   != ( ordered_pair @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) ) ) )
              | ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) ) )
        = $false )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[783]) ).

thf(853,plain,
    ! [SV97: $i,SV23: $i,SV129: $i] :
      ( ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2291: $i] :
                    ( ! [SY2254: $i,SY2255: $i] :
                        ( ~ ( in @ SY2254 @ SV23 )
                        | ~ ( in @ SY2255 @ SV97 )
                        | ( SY2291
                         != ( ordered_pair @ SY2254 @ SY2255 ) ) )
                    | ( in @ SY2291 @ SV129 ) )
              | ~ ! [SY2294: $i] :
                    ( ~ ( in @ SY2294 @ SV129 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                              | ~ ( in @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
                        | ( SY2294
                         != ( ordered_pair @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[784]) ).

thf(854,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ~ ( ! [SY2257: $i] :
                  ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SY2257 )
                  | ~ ( in @ SY2257 @ SV70 ) )
              | ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) ) )
        = $false )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[785]) ).

thf(855,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ ( sK15_SY2048 @ SV98 @ SV70 ) )
                  | ~ ( in @ ( sK15_SY2048 @ SV98 @ SV70 ) @ SV70 ) )
              | ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) ) )
        = $false )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[785]) ).

thf(856,plain,
    ! [SV99: $i,SV71: $i] :
      ( ( ( ~ ! [SY2258: $i] :
                ( ! [SY2220: $i] :
                    ( ~ ( in @ SY2258 @ SY2220 )
                    | ~ ( in @ SY2220 @ SV71 ) )
                | ( in @ SY2258 @ SV99 ) )
          | ~ ! [SY2260: $i] :
                ( ~ ( in @ SY2260 @ SV99 )
                | ~ ( ~ ( in @ SY2260 @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) )
                    | ~ ( in @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) @ SV71 ) ) ) )
        = $false )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[786]) ).

thf(857,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                    | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) )
                | ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                    | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) )
          | ~ ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
              | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 )
              | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) )
        = $false )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[787]) ).

thf(858,plain,
    ! [SV101: $i,SV24: $i,SV131: $i] :
      ( ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2295: $i] :
                    ( ~ ( in @ SY2295 @ SV131 )
                    | ( in @ SY2295 @ SV24 )
                    | ( in @ SY2295 @ SV101 ) )
              | ~ ~ ( ~ ! [SY2296: $i] :
                          ( ~ ( in @ SY2296 @ SV24 )
                          | ( in @ SY2296 @ SV131 ) )
                    | ~ ! [SY2297: $i] :
                          ( ~ ( in @ SY2297 @ SV101 )
                          | ( in @ SY2297 @ SV131 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[788]) ).

thf(859,plain,
    ! [SV72: $i,SV102: $i] :
      ( ( ( ~ ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV72 ) )
        = $false )
      | ( ( disjoint @ SV72 @ SV102 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[789]) ).

thf(860,plain,
    ! [SV72: $i,SV102: $i] :
      ( ( ( ~ ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV102 ) )
        = $false )
      | ( ( disjoint @ SV72 @ SV102 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[789]) ).

thf(861,plain,
    ! [SV103: $i,SV73: $i,SV143: $i] :
      ( ( ( ~ ( in @ SV143 @ SV73 ) )
        = $true )
      | ( ( ~ ( in @ SV143 @ SV103 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV73 @ SV103 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[790]) ).

thf(862,plain,
    ! [SV58: $i,SV25: $i,SV164: $i] :
      ( ( ( ~ ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
          | ~ ( ~ ( element @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
              | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                        | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
                    | ~ ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                        | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
          | ( SV164
            = ( complements_of_subsets @ SV25 @ SV58 ) ) )
        = $true )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[791]) ).

thf(863,plain,
    ! [SV58: $i,SV25: $i,SV165: $i] :
      ( ( ( ~ ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
          | ( SV165
           != ( complements_of_subsets @ SV25 @ SV58 ) )
          | ~ ( ~ ! [SY2331: $i] :
                    ( ~ ( element @ SY2331 @ ( powerset @ SV25 ) )
                    | ~ ( in @ SY2331 @ SV165 )
                    | ( in @ ( subset_complement @ SV25 @ SY2331 ) @ SV58 ) )
              | ~ ! [SY2332: $i] :
                    ( ~ ( element @ SY2332 @ ( powerset @ SV25 ) )
                    | ~ ( in @ ( subset_complement @ SV25 @ SY2332 ) @ SV58 )
                    | ( in @ SY2332 @ SV165 ) ) ) )
        = $true )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[792]) ).

thf(864,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                    | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                     != SV26 ) )
                | ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                    | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                     != SV104 ) ) )
          | ~ ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
              | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                = SV26 )
              | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                = SV104 ) ) )
        = $false )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[793]) ).

thf(865,plain,
    ! [SV105: $i,SV26: $i,SV133: $i] :
      ( ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2298: $i] :
                    ( ~ ( in @ SY2298 @ SV133 )
                    | ( SY2298 = SV26 )
                    | ( SY2298 = SV105 ) )
              | ~ ~ ( ~ ! [SY2299: $i] :
                          ( ( SY2299 != SV26 )
                          | ( in @ SY2299 @ SV133 ) )
                    | ~ ! [SY2300: $i] :
                          ( ( SY2300 != SV105 )
                          | ( in @ SY2300 @ SV133 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[794]) ).

thf(866,plain,
    ! [SV166: $i,SV134: $i,SV59: $i,SV27: $i] :
      ( ( ( ( ( ordered_pair @ SV27 @ SV59 )
           != ( ordered_pair @ SV134 @ SV166 ) ) )
        = $true )
      | ( ( SV27 = SV134 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[795]) ).

thf(867,plain,
    ! [SV144: $i,SV135: $i,SV59: $i,SV27: $i] :
      ( ( ( ( ( ordered_pair @ SV27 @ SV59 )
           != ( ordered_pair @ SV135 @ SV144 ) ) )
        = $true )
      | ( ( SV59 = SV144 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[796]) ).

thf(868,plain,
    ! [SV145: $i,SV60: $i,SV136: $i,SV28: $i] :
      ( ( ( ~ ( in @ SV28 @ SV136 )
          | ~ ( in @ SV60 @ SV145 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV136 @ SV145 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[797]) ).

thf(869,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ! [SY2203: $i] :
            ( ! [SY2204: $i] :
                ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2203 @ SY2204 ) )
            | ( in @ SV28 @ SY2203 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[798]) ).

thf(870,plain,
    ! [SV60: $i,SV28: $i] :
      ( ( ! [SY2205: $i,SY2206: $i] :
            ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SY2205 @ SY2206 ) )
            | ( in @ SV60 @ SY2206 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[799]) ).

thf(871,plain,
    ! [SV29: $i,SV106: $i] :
      ( ( ( subset @ SV106 @ ( sK4_B @ SV29 ) )
        = $false )
      | ( ( are_equipotent @ SV106 @ ( sK4_B @ SV29 ) )
        = $true )
      | ( ( in @ SV106 @ ( sK4_B @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[800]) ).

thf(872,plain,
    ! [SV29: $i,SV167: $i] :
      ( ( ~ ( ~ ! [SY2333: $i] :
                  ( ~ ( subset @ SY2333 @ SV167 )
                  | ( in @ SY2333 @ ( sK5_SY2040 @ SV167 @ SV29 ) ) )
            | ~ ( in @ ( sK5_SY2040 @ SV167 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
        | ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[801]) ).

thf(873,plain,
    ! [SV29: $i] :
      ( ( ~ ! [SY2139: $i,SY2140: $i] :
              ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
              | ~ ( subset @ SY2140 @ SY2139 )
              | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) )
        | ~ ( in @ SV29 @ ( sK4_B @ SV29 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[802]) ).

thf(874,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
              | ~ ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) ) )
        = $false )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[803]) ).

thf(875,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( ~ ( ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
              | ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) ) )
        = $false )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[803]) ).

thf(876,plain,
    ! [SV75: $i,SV108: $i] :
      ( ( ( ~ ! [SY2272: $i] :
                ( ~ ( in @ SY2272 @ SV108 )
                | ( subset @ SY2272 @ SV75 ) )
          | ~ ! [SY2273: $i] :
                ( ~ ( subset @ SY2273 @ SV75 )
                | ( in @ SY2273 @ SV108 ) ) )
        = $false )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[804]) ).

thf(877,plain,
    ! [SV30: $i,SV146: $i] :
      ( ( ( ~ ( ~ ( ! [SY2311: $i] :
                      ~ ( in @ ( ordered_pair @ SY2311 @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
                  | ~ ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV146 @ SV30 ) @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
                  | ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) ) ) )
        = $true )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[805]) ).

thf(878,plain,
    ! [SV30: $i,SV147: $i] :
      ( ( ( ( SV147
           != ( relation_rng @ SV30 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2312: $i] :
                    ( ! [SY2145: $i] :
                        ~ ( in @ ( ordered_pair @ SY2145 @ SY2312 ) @ SV30 )
                    | ( in @ SY2312 @ SV147 ) )
              | ~ ! [SY2314: $i] :
                    ( ~ ( in @ SY2314 @ SV147 )
                    | ( in @ ( ordered_pair @ ( sK9_D @ SY2314 @ SV147 @ SV30 ) @ SY2314 ) @ SV30 ) ) ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[806]) ).

thf(879,plain,
    ! [SV76: $i,SV109: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV76 ) )
        = $false )
      | ( ( subset @ SV76 @ SV109 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[808]) ).

thf(880,plain,
    ! [SV76: $i,SV109: $i] :
      ( ( ( ~ ~ ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV109 ) )
        = $false )
      | ( ( subset @ SV76 @ SV109 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[808]) ).

thf(881,plain,
    ! [SV110: $i,SV77: $i,SV168: $i] :
      ( ( ( ~ ( in @ SV168 @ SV77 )
          | ( in @ SV168 @ SV110 ) )
        = $true )
      | ( ( subset @ SV77 @ SV110 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[809]) ).

thf(882,plain,
    ! [SV111: $i,SV137: $i,SV32: $i] :
      ( ( ( ~ ( in @ SV32 @ SV137 ) )
        = $true )
      | ( ( ~ ( in @ SV111 @ SV137 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV32 @ SV111 ) @ SV137 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[810]) ).

thf(883,plain,
    ! [SV169: $i,SV32: $i] :
      ( ( ! [SY2334: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV32 @ SV169 ) @ SY2334 )
            | ( in @ SV32 @ SY2334 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[811]) ).

thf(884,plain,
    ! [SV170: $i,SV32: $i] :
      ( ( ! [SY2335: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV32 @ SV170 ) @ SY2335 )
            | ( in @ SV170 @ SY2335 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[812]) ).

thf(885,plain,
    ! [SV148: $i] :
      ( ( ( SV148 = empty_set )
        = $true )
      | ( ( ! [SY2315: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SY2315 @ SV148 ) @ SV148 )
                          | ~ ~ ( in @ ( sK32_C @ SY2315 @ SV148 ) @ ( sK33_SY2057 @ SY2315 @ SV148 ) ) )
                      | ~ ( in @ ( sK32_C @ SY2315 @ SV148 ) @ SY2315 ) )
                  | ~ ( ! [SY2316: $i] :
                          ( ~ ( in @ SY2316 @ SV148 )
                          | ( in @ ( sK32_C @ SY2315 @ SV148 ) @ SY2316 ) )
                      | ( in @ ( sK32_C @ SY2315 @ SV148 ) @ SY2315 ) ) )
              | ( SY2315
                = ( set_meet @ SV148 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[813]) ).

thf(886,plain,
    ! [SV149: $i] :
      ( ( ( SV149 = empty_set )
        = $true )
      | ( ( ! [SY2317: $i] :
              ( ( SY2317
               != ( set_meet @ SV149 ) )
              | ~ ( ~ ! [SY2318: $i] :
                        ( ~ ( ~ ( in @ ( sK31_D @ SY2318 @ SY2317 @ SV149 ) @ SV149 )
                            | ~ ~ ( in @ SY2318 @ ( sK31_D @ SY2318 @ SY2317 @ SV149 ) ) )
                        | ( in @ SY2318 @ SY2317 ) )
                  | ~ ! [SY2319: $i] :
                        ( ~ ( in @ SY2319 @ SY2317 )
                        | ! [SY2320: $i] :
                            ( ~ ( in @ SY2320 @ SV149 )
                            | ( in @ SY2319 @ SY2320 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[814]) ).

thf(887,plain,
    ! [SV150: $i] :
      ( ( ( ( SV150 != empty_set ) )
        = $true )
      | ( ( ! [SY2321: $i] :
              ( ( SY2321
               != ( set_meet @ SV150 ) )
              | ( SY2321 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[815]) ).

thf(888,plain,
    ! [SV151: $i] :
      ( ( ( ( SV151 != empty_set ) )
        = $true )
      | ( ( ! [SY2322: $i] :
              ( ( SY2322 != empty_set )
              | ( SY2322
                = ( set_meet @ SV151 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[816]) ).

thf(889,plain,
    ! [SV33: $i,SV152: $i] :
      ( ( ( ~ ( ~ ( ! [SY2323: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ SY2323 ) @ SV33 )
                  | ~ ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ ( sK18_SY2050 @ SV152 @ SV33 ) ) @ SV33 )
                  | ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) ) ) )
        = $true )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[817]) ).

thf(890,plain,
    ! [SV33: $i,SV153: $i] :
      ( ( ( ( SV153
           != ( relation_dom @ SV33 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2324: $i] :
                    ( ! [SY2158: $i] :
                        ~ ( in @ ( ordered_pair @ SY2324 @ SY2158 ) @ SV33 )
                    | ( in @ SY2324 @ SV153 ) )
              | ~ ! [SY2326: $i] :
                    ( ~ ( in @ SY2326 @ SV153 )
                    | ( in @ ( ordered_pair @ SY2326 @ ( sK16_D @ SY2326 @ SV153 @ SV33 ) ) @ SV33 ) ) ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[818]) ).

thf(891,plain,
    ! [SV34: $i,SV114: $i] :
      ( ( ( subset @ SV114 @ ( sK39_B @ SV34 ) )
        = $false )
      | ( ( are_equipotent @ SV114 @ ( sK39_B @ SV34 ) )
        = $true )
      | ( ( in @ SV114 @ ( sK39_B @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[821]) ).

thf(892,plain,
    ! [SV34: $i,SV171: $i] :
      ( ( ~ ( in @ SV171 @ ( sK39_B @ SV34 ) )
        | ( in @ ( powerset @ SV171 ) @ ( sK39_B @ SV34 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[822]) ).

thf(893,plain,
    ! [SV34: $i] :
      ( ( ~ ! [SY2162: $i,SY2163: $i] :
              ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
              | ~ ( subset @ SY2163 @ SY2162 )
              | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) )
        | ~ ( in @ SV34 @ ( sK39_B @ SV34 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[823]) ).

thf(894,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( ~ ( ( ( sK30_C @ SV115 @ SV80 )
               != SV80 )
              | ~ ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) ) )
        = $false )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[824]) ).

thf(895,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( ~ ( ( ( sK30_C @ SV115 @ SV80 )
                = SV80 )
              | ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) ) )
        = $false )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[824]) ).

thf(896,plain,
    ! [SV116: $i,SV81: $i] :
      ( ( ( ~ ! [SY2276: $i] :
                ( ( SY2276 != SV81 )
                | ( in @ SY2276 @ SV116 ) )
          | ~ ! [SY2277: $i] :
                ( ~ ( in @ SY2277 @ SV116 )
                | ( SY2277 = SV81 ) ) )
        = $false )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[825]) ).

thf(897,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
        = $false )
      | ( ( ~ ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 ) )
        = $true )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[826]) ).

thf(898,plain,
    ! [SV154: $i,SV63: $i,SV138: $i,SV36: $i] :
      ( ( ( ~ ( in @ SV36 @ SV138 )
          | ~ ( in @ SV63 @ SV154 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV138 @ SV154 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[828]) ).

thf(899,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ! [SY2209: $i] :
            ( ! [SY2210: $i] :
                ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2209 @ SY2210 ) )
            | ( in @ SV36 @ SY2209 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[829]) ).

thf(900,plain,
    ! [SV63: $i,SV36: $i] :
      ( ( ! [SY2211: $i,SY2212: $i] :
            ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SY2211 @ SY2212 ) )
            | ( in @ SV63 @ SY2212 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[830]) ).

thf(901,plain,
    ! [SV82: $i] :
      ( ( ( ! [SY2238: $i,SY2239: $i] :
              ( ( sK36_B @ SV82 )
             != ( ordered_pair @ SY2238 @ SY2239 ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[831]) ).

thf(902,plain,
    ! [SV82: $i] :
      ( ( ( in @ ( sK36_B @ SV82 ) @ SV82 )
        = $true )
      | ( ( relation @ SV82 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[832]) ).

thf(903,plain,
    ! [SV83: $i,SV155: $i] :
      ( ( ( SV155
          = ( ordered_pair @ ( sK34_C @ SV155 @ SV83 ) @ ( sK35_SY2059 @ SV155 @ SV83 ) ) )
        = $true )
      | ( ( ~ ( in @ SV155 @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[833]) ).

thf(904,plain,
    ! [SV37: $i,SV156: $i] :
      ( ( ( ~ ( relation @ SV156 ) )
        = $true )
      | ( ( ~ ( subset @ SV37 @ SV156 )
          | ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SV156 ) ) )
        = $true )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[834]) ).

thf(905,plain,
    ! [SV37: $i,SV157: $i] :
      ( ( ( ~ ( relation @ SV157 ) )
        = $true )
      | ( ( ~ ( subset @ SV37 @ SV157 )
          | ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SV157 ) ) )
        = $true )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[835]) ).

thf(906,plain,
    ! [SV118: $i,SV85: $i,SV158: $i] :
      ( ( ( in @ SV158 @ ( set_intersection2 @ SV85 @ SV118 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV85 @ SV118 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[836]) ).

thf(907,plain,
    ! [SV86: $i,SV119: $i] :
      ( ( ( in @ SV119 @ SV86 )
        = $false )
      | ( ( ( set_difference @ SV86 @ ( singleton @ SV119 ) )
          = SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[837]) ).

thf(908,plain,
    ! [SV89: $i,SV159: $i] :
      ( ( ( in @ SV159 @ SV89 )
        = $false )
      | ( ( SV89 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[838]) ).

thf(909,plain,
    ! [SV160: $i] :
      ( ( ( empty @ SV160 )
        = $true )
      | ( ( ! [SY2327: $i] :
              ( ~ ( element @ SY2327 @ SV160 )
              | ( in @ SY2327 @ SV160 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[839]) ).

thf(910,plain,
    ! [SV161: $i] :
      ( ( ( empty @ SV161 )
        = $true )
      | ( ( ! [SY2328: $i] :
              ( ~ ( in @ SY2328 @ SV161 )
              | ( element @ SY2328 @ SV161 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[840]) ).

thf(911,plain,
    ! [SV162: $i] :
      ( ( ( ~ ( empty @ SV162 ) )
        = $true )
      | ( ( ! [SY2329: $i] :
              ( ~ ( element @ SY2329 @ SV162 )
              | ( empty @ SY2329 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[841]) ).

thf(912,plain,
    ! [SV163: $i] :
      ( ( ( ~ ( empty @ SV163 ) )
        = $true )
      | ( ( ! [SY2330: $i] :
              ( ~ ( empty @ SY2330 )
              | ( element @ SY2330 @ SV163 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[842]) ).

thf(913,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
              | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
              | ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
          | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
                    | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
                | ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
                    | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) ) ) )
        = $false )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[843]) ).

thf(914,plain,
    ! [SV122: $i,SV38: $i,SV140: $i] :
      ( ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2305: $i] :
                    ( ~ ( in @ SY2305 @ SV38 )
                    | ( in @ SY2305 @ SV122 )
                    | ( in @ SY2305 @ SV140 ) )
              | ~ ~ ( ~ ! [SY2306: $i] :
                          ( ~ ( in @ SY2306 @ SV140 )
                          | ( in @ SY2306 @ SV38 ) )
                    | ~ ! [SY2307: $i] :
                          ( ~ ( in @ SY2307 @ SV140 )
                          | ~ ( in @ SY2307 @ SV122 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[844]) ).

thf(915,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
              | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
              | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
          | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
                    | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
                | ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
                    | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) ) ) )
        = $false )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[845]) ).

thf(916,plain,
    ! [SV124: $i,SV39: $i,SV142: $i] :
      ( ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2308: $i] :
                    ( ~ ( in @ SY2308 @ SV39 )
                    | ~ ( in @ SY2308 @ SV124 )
                    | ( in @ SY2308 @ SV142 ) )
              | ~ ~ ( ~ ! [SY2309: $i] :
                          ( ~ ( in @ SY2309 @ SV142 )
                          | ( in @ SY2309 @ SV39 ) )
                    | ~ ! [SY2310: $i] :
                          ( ~ ( in @ SY2310 @ SV142 )
                          | ( in @ SY2310 @ SV124 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[846]) ).

thf(917,plain,
    ! [SV9: $i,SV64: $i,SV125: $i] :
      ( ( ( in @ SV125 @ SV64 )
        = $true )
      | ( ( in @ SV125 @ ( subset_complement @ SV9 @ SV64 ) )
        = $true )
      | ( ( element @ SV125 @ SV9 )
        = $false )
      | ( ( element @ SV64 @ ( powerset @ SV9 ) )
        = $false )
      | ( ( SV9 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[847]) ).

thf(918,plain,
    ! [SV126: $i,SV94: $i,SV22: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV22 @ SV94 ) @ SV126 ) )
        = $true )
      | ( ( in @ SV22 @ ( relation_dom @ SV126 ) )
        = $true )
      | ( ( relation @ SV126 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[850]) ).

thf(919,plain,
    ! [SV127: $i,SV95: $i,SV22: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV22 @ SV95 ) @ SV127 ) )
        = $true )
      | ( ( in @ SV95 @ ( relation_rng @ SV127 ) )
        = $true )
      | ( ( relation @ SV127 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[851]) ).

thf(920,plain,
    ! [SV128: $i,SV96: $i,SV23: $i] :
      ( ( ( ~ ( ! [SY2289: $i,SY2290: $i] :
                  ( ~ ( in @ SY2289 @ SV23 )
                  | ~ ( in @ SY2290 @ SV96 )
                  | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
                   != ( ordered_pair @ SY2289 @ SY2290 ) ) )
              | ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) ) )
        = $false )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[852]) ).

thf(921,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
                        | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) )
                  | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
                   != ( ordered_pair @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) ) ) )
              | ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) ) )
        = $false )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[852]) ).

thf(922,plain,
    ! [SV129: $i,SV97: $i,SV23: $i] :
      ( ( ( ~ ! [SY2291: $i] :
                ( ! [SY2254: $i,SY2255: $i] :
                    ( ~ ( in @ SY2254 @ SV23 )
                    | ~ ( in @ SY2255 @ SV97 )
                    | ( SY2291
                     != ( ordered_pair @ SY2254 @ SY2255 ) ) )
                | ( in @ SY2291 @ SV129 ) )
          | ~ ! [SY2294: $i] :
                ( ~ ( in @ SY2294 @ SV129 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                          | ~ ( in @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
                    | ( SY2294
                     != ( ordered_pair @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) ) ) ) ) )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[853]) ).

thf(923,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ! [SY2257: $i] :
              ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SY2257 )
              | ~ ( in @ SY2257 @ SV70 ) )
          | ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[854]) ).

thf(924,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ ( sK15_SY2048 @ SV98 @ SV70 ) )
              | ~ ( in @ ( sK15_SY2048 @ SV98 @ SV70 ) @ SV70 ) )
          | ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[855]) ).

thf(925,plain,
    ! [SV99: $i,SV71: $i] :
      ( ( ( ~ ! [SY2258: $i] :
                ( ! [SY2220: $i] :
                    ( ~ ( in @ SY2258 @ SY2220 )
                    | ~ ( in @ SY2220 @ SV71 ) )
                | ( in @ SY2258 @ SV99 ) ) )
        = $false )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[856]) ).

thf(926,plain,
    ! [SV71: $i,SV99: $i] :
      ( ( ( ~ ! [SY2260: $i] :
                ( ~ ( in @ SY2260 @ SV99 )
                | ~ ( ~ ( in @ SY2260 @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) )
                    | ~ ( in @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) @ SV71 ) ) ) )
        = $false )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[856]) ).

thf(927,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                    | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) )
                | ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                    | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) ) )
        = $false )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[857]) ).

thf(928,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
              | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 )
              | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) )
        = $false )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[857]) ).

thf(929,plain,
    ! [SV101: $i,SV24: $i,SV131: $i] :
      ( ( ( ~ ! [SY2295: $i] :
                ( ~ ( in @ SY2295 @ SV131 )
                | ( in @ SY2295 @ SV24 )
                | ( in @ SY2295 @ SV101 ) )
          | ~ ~ ( ~ ! [SY2296: $i] :
                      ( ~ ( in @ SY2296 @ SV24 )
                      | ( in @ SY2296 @ SV131 ) )
                | ~ ! [SY2297: $i] :
                      ( ~ ( in @ SY2297 @ SV101 )
                      | ( in @ SY2297 @ SV131 ) ) ) )
        = $false )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[858]) ).

thf(930,plain,
    ! [SV72: $i,SV102: $i] :
      ( ( ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV72 )
        = $true )
      | ( ( disjoint @ SV72 @ SV102 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[859]) ).

thf(931,plain,
    ! [SV72: $i,SV102: $i] :
      ( ( ( in @ ( sK38_C @ SV102 @ SV72 ) @ SV102 )
        = $true )
      | ( ( disjoint @ SV72 @ SV102 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[860]) ).

thf(932,plain,
    ! [SV103: $i,SV73: $i,SV143: $i] :
      ( ( ( in @ SV143 @ SV73 )
        = $false )
      | ( ( ~ ( in @ SV143 @ SV103 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV73 @ SV103 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[861]) ).

thf(933,plain,
    ! [SV58: $i,SV25: $i,SV164: $i] :
      ( ( ( ~ ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ( element @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
              | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                        | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
                    | ~ ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                        | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
          | ( SV164
            = ( complements_of_subsets @ SV25 @ SV58 ) ) )
        = $true )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[862]) ).

thf(934,plain,
    ! [SV58: $i,SV25: $i,SV165: $i] :
      ( ( ( ~ ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) ) )
        = $true )
      | ( ( ( SV165
           != ( complements_of_subsets @ SV25 @ SV58 ) )
          | ~ ( ~ ! [SY2331: $i] :
                    ( ~ ( element @ SY2331 @ ( powerset @ SV25 ) )
                    | ~ ( in @ SY2331 @ SV165 )
                    | ( in @ ( subset_complement @ SV25 @ SY2331 ) @ SV58 ) )
              | ~ ! [SY2332: $i] :
                    ( ~ ( element @ SY2332 @ ( powerset @ SV25 ) )
                    | ~ ( in @ ( subset_complement @ SV25 @ SY2332 ) @ SV58 )
                    | ( in @ SY2332 @ SV165 ) ) ) )
        = $true )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[863]) ).

thf(935,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                    | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                     != SV26 ) )
                | ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                    | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                     != SV104 ) ) ) )
        = $false )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[864]) ).

thf(936,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
              | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                = SV26 )
              | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                = SV104 ) ) )
        = $false )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[864]) ).

thf(937,plain,
    ! [SV105: $i,SV26: $i,SV133: $i] :
      ( ( ( ~ ! [SY2298: $i] :
                ( ~ ( in @ SY2298 @ SV133 )
                | ( SY2298 = SV26 )
                | ( SY2298 = SV105 ) )
          | ~ ~ ( ~ ! [SY2299: $i] :
                      ( ( SY2299 != SV26 )
                      | ( in @ SY2299 @ SV133 ) )
                | ~ ! [SY2300: $i] :
                      ( ( SY2300 != SV105 )
                      | ( in @ SY2300 @ SV133 ) ) ) )
        = $false )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[865]) ).

thf(938,plain,
    ! [SV166: $i,SV134: $i,SV59: $i,SV27: $i] :
      ( ( ( ( ordered_pair @ SV27 @ SV59 )
          = ( ordered_pair @ SV134 @ SV166 ) )
        = $false )
      | ( ( SV27 = SV134 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[866]) ).

thf(939,plain,
    ! [SV144: $i,SV135: $i,SV59: $i,SV27: $i] :
      ( ( ( ( ordered_pair @ SV27 @ SV59 )
          = ( ordered_pair @ SV135 @ SV144 ) )
        = $false )
      | ( ( SV59 = SV144 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[867]) ).

thf(940,plain,
    ! [SV145: $i,SV60: $i,SV136: $i,SV28: $i] :
      ( ( ( ~ ( in @ SV28 @ SV136 ) )
        = $true )
      | ( ( ~ ( in @ SV60 @ SV145 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV136 @ SV145 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[868]) ).

thf(941,plain,
    ! [SV172: $i,SV60: $i,SV28: $i] :
      ( ( ! [SY2336: $i] :
            ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV172 @ SY2336 ) )
        | ( in @ SV28 @ SV172 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[869]) ).

thf(942,plain,
    ! [SV173: $i,SV60: $i,SV28: $i] :
      ( ( ! [SY2337: $i] :
            ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV173 @ SY2337 ) )
            | ( in @ SV60 @ SY2337 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[870]) ).

thf(943,plain,
    ! [SV29: $i,SV167: $i] :
      ( ( ( ~ ( ~ ! [SY2333: $i] :
                    ( ~ ( subset @ SY2333 @ SV167 )
                    | ( in @ SY2333 @ ( sK5_SY2040 @ SV167 @ SV29 ) ) )
              | ~ ( in @ ( sK5_SY2040 @ SV167 @ SV29 ) @ ( sK4_B @ SV29 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[872]) ).

thf(944,plain,
    ! [SV29: $i] :
      ( ( ~ ! [SY2139: $i,SY2140: $i] :
              ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
              | ~ ( subset @ SY2140 @ SY2139 )
              | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[873]) ).

thf(945,plain,
    ! [SV29: $i] :
      ( ( ~ ( in @ SV29 @ ( sK4_B @ SV29 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[873]) ).

thf(946,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
          | ~ ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) )
        = $true )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[874]) ).

thf(947,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
          | ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) )
        = $true )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[875]) ).

thf(948,plain,
    ! [SV75: $i,SV108: $i] :
      ( ( ( ~ ! [SY2272: $i] :
                ( ~ ( in @ SY2272 @ SV108 )
                | ( subset @ SY2272 @ SV75 ) ) )
        = $false )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[876]) ).

thf(949,plain,
    ! [SV108: $i,SV75: $i] :
      ( ( ( ~ ! [SY2273: $i] :
                ( ~ ( subset @ SY2273 @ SV75 )
                | ( in @ SY2273 @ SV108 ) ) )
        = $false )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[876]) ).

thf(950,plain,
    ! [SV30: $i,SV146: $i] :
      ( ( ( ~ ( ! [SY2311: $i] :
                  ~ ( in @ ( ordered_pair @ SY2311 @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
              | ~ ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV146 @ SV30 ) @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
              | ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) ) )
        = $false )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[877]) ).

thf(951,plain,
    ! [SV30: $i,SV147: $i] :
      ( ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2312: $i] :
                    ( ! [SY2145: $i] :
                        ~ ( in @ ( ordered_pair @ SY2145 @ SY2312 ) @ SV30 )
                    | ( in @ SY2312 @ SV147 ) )
              | ~ ! [SY2314: $i] :
                    ( ~ ( in @ SY2314 @ SV147 )
                    | ( in @ ( ordered_pair @ ( sK9_D @ SY2314 @ SV147 @ SV30 ) @ SY2314 ) @ SV30 ) ) ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[878]) ).

thf(952,plain,
    ! [SV76: $i,SV109: $i] :
      ( ( ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV76 )
        = $true )
      | ( ( subset @ SV76 @ SV109 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[879]) ).

thf(953,plain,
    ! [SV76: $i,SV109: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV109 ) )
        = $true )
      | ( ( subset @ SV76 @ SV109 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[880]) ).

thf(954,plain,
    ! [SV110: $i,SV77: $i,SV168: $i] :
      ( ( ( ~ ( in @ SV168 @ SV77 ) )
        = $true )
      | ( ( in @ SV168 @ SV110 )
        = $true )
      | ( ( subset @ SV77 @ SV110 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[881]) ).

thf(955,plain,
    ! [SV111: $i,SV137: $i,SV32: $i] :
      ( ( ( in @ SV32 @ SV137 )
        = $false )
      | ( ( ~ ( in @ SV111 @ SV137 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV32 @ SV111 ) @ SV137 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[882]) ).

thf(956,plain,
    ! [SV174: $i,SV169: $i,SV32: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV32 @ SV169 ) @ SV174 )
        | ( in @ SV32 @ SV174 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[883]) ).

thf(957,plain,
    ! [SV175: $i,SV170: $i,SV32: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV32 @ SV170 ) @ SV175 )
        | ( in @ SV170 @ SV175 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[884]) ).

thf(958,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 )
                      | ~ ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) ) )
                  | ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
              | ~ ( ! [SY2338: $i] :
                      ( ~ ( in @ SY2338 @ SV148 )
                      | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SY2338 ) )
                  | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) ) )
          | ( SV176
            = ( set_meet @ SV148 ) ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[885]) ).

thf(959,plain,
    ! [SV149: $i,SV177: $i] :
      ( ( ( ( SV177
           != ( set_meet @ SV149 ) )
          | ~ ( ~ ! [SY2339: $i] :
                    ( ~ ( ~ ( in @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) @ SV149 )
                        | ~ ~ ( in @ SY2339 @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) ) )
                    | ( in @ SY2339 @ SV177 ) )
              | ~ ! [SY2340: $i] :
                    ( ~ ( in @ SY2340 @ SV177 )
                    | ! [SY2320: $i] :
                        ( ~ ( in @ SY2320 @ SV149 )
                        | ( in @ SY2340 @ SY2320 ) ) ) ) )
        = $true )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[886]) ).

thf(960,plain,
    ! [SV150: $i] :
      ( ( ( SV150 = empty_set )
        = $false )
      | ( ( ! [SY2321: $i] :
              ( ( SY2321
               != ( set_meet @ SV150 ) )
              | ( SY2321 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[887]) ).

thf(961,plain,
    ! [SV151: $i] :
      ( ( ( SV151 = empty_set )
        = $false )
      | ( ( ! [SY2322: $i] :
              ( ( SY2322 != empty_set )
              | ( SY2322
                = ( set_meet @ SV151 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[888]) ).

thf(962,plain,
    ! [SV33: $i,SV152: $i] :
      ( ( ( ~ ( ! [SY2323: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ SY2323 ) @ SV33 )
              | ~ ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ ( sK18_SY2050 @ SV152 @ SV33 ) ) @ SV33 )
              | ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) ) )
        = $false )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[889]) ).

thf(963,plain,
    ! [SV33: $i,SV153: $i] :
      ( ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2324: $i] :
                    ( ! [SY2158: $i] :
                        ~ ( in @ ( ordered_pair @ SY2324 @ SY2158 ) @ SV33 )
                    | ( in @ SY2324 @ SV153 ) )
              | ~ ! [SY2326: $i] :
                    ( ~ ( in @ SY2326 @ SV153 )
                    | ( in @ ( ordered_pair @ SY2326 @ ( sK16_D @ SY2326 @ SV153 @ SV33 ) ) @ SV33 ) ) ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[890]) ).

thf(964,plain,
    ! [SV34: $i,SV171: $i] :
      ( ( ( ~ ( in @ SV171 @ ( sK39_B @ SV34 ) ) )
        = $true )
      | ( ( in @ ( powerset @ SV171 ) @ ( sK39_B @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[892]) ).

thf(965,plain,
    ! [SV34: $i] :
      ( ( ~ ! [SY2162: $i,SY2163: $i] :
              ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
              | ~ ( subset @ SY2163 @ SY2162 )
              | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[893]) ).

thf(966,plain,
    ! [SV34: $i] :
      ( ( ~ ( in @ SV34 @ ( sK39_B @ SV34 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[893]) ).

thf(967,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( ( ( sK30_C @ SV115 @ SV80 )
           != SV80 )
          | ~ ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) )
        = $true )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[894]) ).

thf(968,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( ( ( sK30_C @ SV115 @ SV80 )
            = SV80 )
          | ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) )
        = $true )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[895]) ).

thf(969,plain,
    ! [SV116: $i,SV81: $i] :
      ( ( ( ~ ! [SY2276: $i] :
                ( ( SY2276 != SV81 )
                | ( in @ SY2276 @ SV116 ) ) )
        = $false )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[896]) ).

thf(970,plain,
    ! [SV81: $i,SV116: $i] :
      ( ( ( ~ ! [SY2277: $i] :
                ( ~ ( in @ SY2277 @ SV116 )
                | ( SY2277 = SV81 ) ) )
        = $false )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[896]) ).

thf(971,plain,
    ! [SV35: $i,SV62: $i] :
      ( ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV62 )
        = $false )
      | ( ( in @ ( sK6_C @ SV62 @ SV35 ) @ SV35 )
        = $false )
      | ( ( SV35 = SV62 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[897]) ).

thf(972,plain,
    ! [SV154: $i,SV63: $i,SV138: $i,SV36: $i] :
      ( ( ( ~ ( in @ SV36 @ SV138 ) )
        = $true )
      | ( ( ~ ( in @ SV63 @ SV154 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV138 @ SV154 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[898]) ).

thf(973,plain,
    ! [SV178: $i,SV63: $i,SV36: $i] :
      ( ( ! [SY2342: $i] :
            ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV178 @ SY2342 ) )
        | ( in @ SV36 @ SV178 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[899]) ).

thf(974,plain,
    ! [SV179: $i,SV63: $i,SV36: $i] :
      ( ( ! [SY2343: $i] :
            ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV179 @ SY2343 ) )
            | ( in @ SV63 @ SY2343 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[900]) ).

thf(975,plain,
    ! [SV180: $i,SV82: $i] :
      ( ( ( ! [SY2344: $i] :
              ( ( sK36_B @ SV82 )
             != ( ordered_pair @ SV180 @ SY2344 ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[901]) ).

thf(976,plain,
    ! [SV83: $i,SV155: $i] :
      ( ( ( in @ SV155 @ SV83 )
        = $false )
      | ( ( SV155
          = ( ordered_pair @ ( sK34_C @ SV155 @ SV83 ) @ ( sK35_SY2059 @ SV155 @ SV83 ) ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[903]) ).

thf(977,plain,
    ! [SV37: $i,SV156: $i] :
      ( ( ( relation @ SV156 )
        = $false )
      | ( ( ~ ( subset @ SV37 @ SV156 )
          | ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SV156 ) ) )
        = $true )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[904]) ).

thf(978,plain,
    ! [SV37: $i,SV157: $i] :
      ( ( ( relation @ SV157 )
        = $false )
      | ( ( ~ ( subset @ SV37 @ SV157 )
          | ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SV157 ) ) )
        = $true )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[905]) ).

thf(979,plain,
    ! [SV158: $i,SV118: $i,SV85: $i] :
      ( ( ( disjoint @ SV85 @ SV118 )
        = $false )
      | ( ( in @ SV158 @ ( set_intersection2 @ SV85 @ SV118 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[906]) ).

thf(980,plain,
    ! [SV160: $i,SV181: $i] :
      ( ( ( ~ ( element @ SV181 @ SV160 )
          | ( in @ SV181 @ SV160 ) )
        = $true )
      | ( ( empty @ SV160 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[909]) ).

thf(981,plain,
    ! [SV161: $i,SV182: $i] :
      ( ( ( ~ ( in @ SV182 @ SV161 )
          | ( element @ SV182 @ SV161 ) )
        = $true )
      | ( ( empty @ SV161 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[910]) ).

thf(982,plain,
    ! [SV162: $i] :
      ( ( ( empty @ SV162 )
        = $false )
      | ( ( ! [SY2329: $i] :
              ( ~ ( element @ SY2329 @ SV162 )
              | ( empty @ SY2329 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[911]) ).

thf(983,plain,
    ! [SV163: $i] :
      ( ( ( empty @ SV163 )
        = $false )
      | ( ( ! [SY2330: $i] :
              ( ~ ( empty @ SY2330 )
              | ( element @ SY2330 @ SV163 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[912]) ).

thf(984,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
              | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
              | ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) ) )
        = $false )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[913]) ).

thf(985,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
                    | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
                | ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
                    | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) ) ) )
        = $false )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[913]) ).

thf(986,plain,
    ! [SV140: $i,SV122: $i,SV38: $i] :
      ( ( ( ~ ! [SY2305: $i] :
                ( ~ ( in @ SY2305 @ SV38 )
                | ( in @ SY2305 @ SV122 )
                | ( in @ SY2305 @ SV140 ) )
          | ~ ~ ( ~ ! [SY2306: $i] :
                      ( ~ ( in @ SY2306 @ SV140 )
                      | ( in @ SY2306 @ SV38 ) )
                | ~ ! [SY2307: $i] :
                      ( ~ ( in @ SY2307 @ SV140 )
                      | ~ ( in @ SY2307 @ SV122 ) ) ) )
        = $false )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[914]) ).

thf(987,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
              | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
              | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) ) )
        = $false )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[915]) ).

thf(988,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
                    | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
                | ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
                    | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) ) ) )
        = $false )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[915]) ).

thf(989,plain,
    ! [SV142: $i,SV124: $i,SV39: $i] :
      ( ( ( ~ ! [SY2308: $i] :
                ( ~ ( in @ SY2308 @ SV39 )
                | ~ ( in @ SY2308 @ SV124 )
                | ( in @ SY2308 @ SV142 ) )
          | ~ ~ ( ~ ! [SY2309: $i] :
                      ( ~ ( in @ SY2309 @ SV142 )
                      | ( in @ SY2309 @ SV39 ) )
                | ~ ! [SY2310: $i] :
                      ( ~ ( in @ SY2310 @ SV142 )
                      | ( in @ SY2310 @ SV124 ) ) ) )
        = $false )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[916]) ).

thf(990,plain,
    ! [SV126: $i,SV94: $i,SV22: $i] :
      ( ( ( in @ ( ordered_pair @ SV22 @ SV94 ) @ SV126 )
        = $false )
      | ( ( in @ SV22 @ ( relation_dom @ SV126 ) )
        = $true )
      | ( ( relation @ SV126 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[918]) ).

thf(991,plain,
    ! [SV127: $i,SV95: $i,SV22: $i] :
      ( ( ( in @ ( ordered_pair @ SV22 @ SV95 ) @ SV127 )
        = $false )
      | ( ( in @ SV95 @ ( relation_rng @ SV127 ) )
        = $true )
      | ( ( relation @ SV127 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[919]) ).

thf(992,plain,
    ! [SV128: $i,SV96: $i,SV23: $i] :
      ( ( ( ! [SY2289: $i,SY2290: $i] :
              ( ~ ( in @ SY2289 @ SV23 )
              | ~ ( in @ SY2290 @ SV96 )
              | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
               != ( ordered_pair @ SY2289 @ SY2290 ) ) )
          | ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[920]) ).

thf(993,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
                    | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) )
              | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
               != ( ordered_pair @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) ) ) )
          | ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[921]) ).

thf(994,plain,
    ! [SV129: $i,SV97: $i,SV23: $i] :
      ( ( ( ~ ! [SY2291: $i] :
                ( ! [SY2254: $i,SY2255: $i] :
                    ( ~ ( in @ SY2254 @ SV23 )
                    | ~ ( in @ SY2255 @ SV97 )
                    | ( SY2291
                     != ( ordered_pair @ SY2254 @ SY2255 ) ) )
                | ( in @ SY2291 @ SV129 ) ) )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[922]) ).

thf(995,plain,
    ! [SV23: $i,SV97: $i,SV129: $i] :
      ( ( ( ~ ! [SY2294: $i] :
                ( ~ ( in @ SY2294 @ SV129 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                          | ~ ( in @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
                    | ( SY2294
                     != ( ordered_pair @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) ) ) ) ) )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[922]) ).

thf(996,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ! [SY2257: $i] :
              ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SY2257 )
              | ~ ( in @ SY2257 @ SV70 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[923]) ).

thf(997,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ ( sK15_SY2048 @ SV98 @ SV70 ) )
              | ~ ( in @ ( sK15_SY2048 @ SV98 @ SV70 ) @ SV70 ) ) )
        = $true )
      | ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[924]) ).

thf(998,plain,
    ! [SV99: $i,SV71: $i] :
      ( ( ( ! [SY2258: $i] :
              ( ! [SY2220: $i] :
                  ( ~ ( in @ SY2258 @ SY2220 )
                  | ~ ( in @ SY2220 @ SV71 ) )
              | ( in @ SY2258 @ SV99 ) ) )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[925]) ).

thf(999,plain,
    ! [SV71: $i,SV99: $i] :
      ( ( ( ! [SY2260: $i] :
              ( ~ ( in @ SY2260 @ SV99 )
              | ~ ( ~ ( in @ SY2260 @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) )
                  | ~ ( in @ ( sK13_D @ SY2260 @ SV99 @ SV71 ) @ SV71 ) ) ) )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[926]) ).

thf(1000,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                  | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) )
              | ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
                  | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[927]) ).

thf(1001,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
          | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 )
          | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[928]) ).

thf(1002,plain,
    ! [SV101: $i,SV24: $i,SV131: $i] :
      ( ( ( ~ ! [SY2295: $i] :
                ( ~ ( in @ SY2295 @ SV131 )
                | ( in @ SY2295 @ SV24 )
                | ( in @ SY2295 @ SV101 ) ) )
        = $false )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[929]) ).

thf(1003,plain,
    ! [SV101: $i,SV131: $i,SV24: $i] :
      ( ( ( ~ ~ ( ~ ! [SY2296: $i] :
                      ( ~ ( in @ SY2296 @ SV24 )
                      | ( in @ SY2296 @ SV131 ) )
                | ~ ! [SY2297: $i] :
                      ( ~ ( in @ SY2297 @ SV101 )
                      | ( in @ SY2297 @ SV131 ) ) ) )
        = $false )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[929]) ).

thf(1004,plain,
    ! [SV73: $i,SV103: $i,SV143: $i] :
      ( ( ( in @ SV143 @ SV103 )
        = $false )
      | ( ( in @ SV143 @ SV73 )
        = $false )
      | ( ( ~ ( disjoint @ SV73 @ SV103 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[932]) ).

thf(1005,plain,
    ! [SV58: $i,SV25: $i,SV164: $i] :
      ( ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( ~ ( ~ ( element @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
              | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                        | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
                    | ~ ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                        | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
          | ( SV164
            = ( complements_of_subsets @ SV25 @ SV58 ) ) )
        = $true )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[933]) ).

thf(1006,plain,
    ! [SV58: $i,SV25: $i,SV165: $i] :
      ( ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( ( SV165
           != ( complements_of_subsets @ SV25 @ SV58 ) )
          | ~ ( ~ ! [SY2331: $i] :
                    ( ~ ( element @ SY2331 @ ( powerset @ SV25 ) )
                    | ~ ( in @ SY2331 @ SV165 )
                    | ( in @ ( subset_complement @ SV25 @ SY2331 ) @ SV58 ) )
              | ~ ! [SY2332: $i] :
                    ( ~ ( element @ SY2332 @ ( powerset @ SV25 ) )
                    | ~ ( in @ ( subset_complement @ SV25 @ SY2332 ) @ SV58 )
                    | ( in @ SY2332 @ SV165 ) ) ) )
        = $true )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[934]) ).

thf(1007,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                  | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                   != SV26 ) )
              | ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
                  | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
                   != SV104 ) ) ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[935]) ).

thf(1008,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
          | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
            = SV26 )
          | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
            = SV104 ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[936]) ).

thf(1009,plain,
    ! [SV105: $i,SV26: $i,SV133: $i] :
      ( ( ( ~ ! [SY2298: $i] :
                ( ~ ( in @ SY2298 @ SV133 )
                | ( SY2298 = SV26 )
                | ( SY2298 = SV105 ) ) )
        = $false )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[937]) ).

thf(1010,plain,
    ! [SV105: $i,SV133: $i,SV26: $i] :
      ( ( ( ~ ~ ( ~ ! [SY2299: $i] :
                      ( ( SY2299 != SV26 )
                      | ( in @ SY2299 @ SV133 ) )
                | ~ ! [SY2300: $i] :
                      ( ( SY2300 != SV105 )
                      | ( in @ SY2300 @ SV133 ) ) ) )
        = $false )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[937]) ).

thf(1011,plain,
    ! [SV145: $i,SV60: $i,SV136: $i,SV28: $i] :
      ( ( ( in @ SV28 @ SV136 )
        = $false )
      | ( ( ~ ( in @ SV60 @ SV145 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV136 @ SV145 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[940]) ).

thf(1012,plain,
    ! [SV172: $i,SV60: $i,SV28: $i] :
      ( ( ( ! [SY2336: $i] :
              ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV172 @ SY2336 ) ) )
        = $true )
      | ( ( in @ SV28 @ SV172 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[941]) ).

thf(1013,plain,
    ! [SV183: $i,SV173: $i,SV60: $i,SV28: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV173 @ SV183 ) )
        | ( in @ SV60 @ SV183 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[942]) ).

thf(1014,plain,
    ! [SV29: $i,SV167: $i] :
      ( ( ( ~ ! [SY2333: $i] :
                ( ~ ( subset @ SY2333 @ SV167 )
                | ( in @ SY2333 @ ( sK5_SY2040 @ SV167 @ SV29 ) ) )
          | ~ ( in @ ( sK5_SY2040 @ SV167 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
        = $false )
      | ( ( ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[943]) ).

thf(1015,plain,
    ! [SV29: $i] :
      ( ( ! [SY2139: $i,SY2140: $i] :
            ( ~ ( in @ SY2139 @ ( sK4_B @ SV29 ) )
            | ~ ( subset @ SY2140 @ SY2139 )
            | ( in @ SY2140 @ ( sK4_B @ SV29 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[944]) ).

thf(1016,plain,
    ! [SV29: $i] :
      ( ( in @ SV29 @ ( sK4_B @ SV29 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[945]) ).

thf(1017,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) )
        = $true )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[946]) ).

thf(1018,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
        = $true )
      | ( ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 )
        = $true )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[947]) ).

thf(1019,plain,
    ! [SV75: $i,SV108: $i] :
      ( ( ( ! [SY2272: $i] :
              ( ~ ( in @ SY2272 @ SV108 )
              | ( subset @ SY2272 @ SV75 ) ) )
        = $true )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[948]) ).

thf(1020,plain,
    ! [SV108: $i,SV75: $i] :
      ( ( ( ! [SY2273: $i] :
              ( ~ ( subset @ SY2273 @ SV75 )
              | ( in @ SY2273 @ SV108 ) ) )
        = $true )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[949]) ).

thf(1021,plain,
    ! [SV30: $i,SV146: $i] :
      ( ( ( ~ ( ! [SY2311: $i] :
                  ~ ( in @ ( ordered_pair @ SY2311 @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
              | ~ ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) ) )
        = $false )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[950]) ).

thf(1022,plain,
    ! [SV30: $i,SV146: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV146 @ SV30 ) @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
              | ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) ) )
        = $false )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[950]) ).

thf(1023,plain,
    ! [SV147: $i,SV30: $i] :
      ( ( ( ~ ! [SY2312: $i] :
                ( ! [SY2145: $i] :
                    ~ ( in @ ( ordered_pair @ SY2145 @ SY2312 ) @ SV30 )
                | ( in @ SY2312 @ SV147 ) )
          | ~ ! [SY2314: $i] :
                ( ~ ( in @ SY2314 @ SV147 )
                | ( in @ ( ordered_pair @ ( sK9_D @ SY2314 @ SV147 @ SV30 ) @ SY2314 ) @ SV30 ) ) )
        = $false )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[951]) ).

thf(1024,plain,
    ! [SV76: $i,SV109: $i] :
      ( ( ( in @ ( sK20_C @ SV109 @ SV76 ) @ SV109 )
        = $false )
      | ( ( subset @ SV76 @ SV109 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[953]) ).

thf(1025,plain,
    ! [SV110: $i,SV77: $i,SV168: $i] :
      ( ( ( in @ SV168 @ SV77 )
        = $false )
      | ( ( in @ SV168 @ SV110 )
        = $true )
      | ( ( subset @ SV77 @ SV110 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[954]) ).

thf(1026,plain,
    ! [SV32: $i,SV137: $i,SV111: $i] :
      ( ( ( in @ SV111 @ SV137 )
        = $false )
      | ( ( in @ SV32 @ SV137 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV32 @ SV111 ) @ SV137 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[955]) ).

thf(1027,plain,
    ! [SV174: $i,SV169: $i,SV32: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV32 @ SV169 ) @ SV174 ) )
        = $true )
      | ( ( in @ SV32 @ SV174 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[956]) ).

thf(1028,plain,
    ! [SV175: $i,SV170: $i,SV32: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV32 @ SV170 ) @ SV175 ) )
        = $true )
      | ( ( in @ SV170 @ SV175 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[957]) ).

thf(1029,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 )
                      | ~ ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) ) )
                  | ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
              | ~ ( ! [SY2338: $i] :
                      ( ~ ( in @ SY2338 @ SV148 )
                      | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SY2338 ) )
                  | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) ) ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[958]) ).

thf(1030,plain,
    ! [SV149: $i,SV177: $i] :
      ( ( ( ( SV177
           != ( set_meet @ SV149 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2339: $i] :
                    ( ~ ( ~ ( in @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) @ SV149 )
                        | ~ ~ ( in @ SY2339 @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) ) )
                    | ( in @ SY2339 @ SV177 ) )
              | ~ ! [SY2340: $i] :
                    ( ~ ( in @ SY2340 @ SV177 )
                    | ! [SY2320: $i] :
                        ( ~ ( in @ SY2320 @ SV149 )
                        | ( in @ SY2340 @ SY2320 ) ) ) ) )
        = $true )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[959]) ).

thf(1031,plain,
    ! [SV150: $i,SV184: $i] :
      ( ( ( ( SV184
           != ( set_meet @ SV150 ) )
          | ( SV184 = empty_set ) )
        = $true )
      | ( ( SV150 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[960]) ).

thf(1032,plain,
    ! [SV151: $i,SV185: $i] :
      ( ( ( ( SV185 != empty_set )
          | ( SV185
            = ( set_meet @ SV151 ) ) )
        = $true )
      | ( ( SV151 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[961]) ).

thf(1033,plain,
    ! [SV33: $i,SV152: $i] :
      ( ( ( ~ ( ! [SY2323: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ SY2323 ) @ SV33 )
              | ~ ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) ) )
        = $false )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[962]) ).

thf(1034,plain,
    ! [SV33: $i,SV152: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ ( sK18_SY2050 @ SV152 @ SV33 ) ) @ SV33 )
              | ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) ) )
        = $false )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[962]) ).

thf(1035,plain,
    ! [SV153: $i,SV33: $i] :
      ( ( ( ~ ! [SY2324: $i] :
                ( ! [SY2158: $i] :
                    ~ ( in @ ( ordered_pair @ SY2324 @ SY2158 ) @ SV33 )
                | ( in @ SY2324 @ SV153 ) )
          | ~ ! [SY2326: $i] :
                ( ~ ( in @ SY2326 @ SV153 )
                | ( in @ ( ordered_pair @ SY2326 @ ( sK16_D @ SY2326 @ SV153 @ SV33 ) ) @ SV33 ) ) )
        = $false )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[963]) ).

thf(1036,plain,
    ! [SV34: $i,SV171: $i] :
      ( ( ( in @ SV171 @ ( sK39_B @ SV34 ) )
        = $false )
      | ( ( in @ ( powerset @ SV171 ) @ ( sK39_B @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[964]) ).

thf(1037,plain,
    ! [SV34: $i] :
      ( ( ! [SY2162: $i,SY2163: $i] :
            ( ~ ( in @ SY2162 @ ( sK39_B @ SV34 ) )
            | ~ ( subset @ SY2163 @ SY2162 )
            | ( in @ SY2163 @ ( sK39_B @ SV34 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[965]) ).

thf(1038,plain,
    ! [SV34: $i] :
      ( ( in @ SV34 @ ( sK39_B @ SV34 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[966]) ).

thf(1039,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( ( ( sK30_C @ SV115 @ SV80 )
           != SV80 ) )
        = $true )
      | ( ( ~ ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) )
        = $true )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[967]) ).

thf(1040,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( ( sK30_C @ SV115 @ SV80 )
          = SV80 )
        = $true )
      | ( ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 )
        = $true )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[968]) ).

thf(1041,plain,
    ! [SV116: $i,SV81: $i] :
      ( ( ( ! [SY2276: $i] :
              ( ( SY2276 != SV81 )
              | ( in @ SY2276 @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[969]) ).

thf(1042,plain,
    ! [SV81: $i,SV116: $i] :
      ( ( ( ! [SY2277: $i] :
              ( ~ ( in @ SY2277 @ SV116 )
              | ( SY2277 = SV81 ) ) )
        = $true )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[970]) ).

thf(1043,plain,
    ! [SV154: $i,SV63: $i,SV138: $i,SV36: $i] :
      ( ( ( in @ SV36 @ SV138 )
        = $false )
      | ( ( ~ ( in @ SV63 @ SV154 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV138 @ SV154 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[972]) ).

thf(1044,plain,
    ! [SV178: $i,SV63: $i,SV36: $i] :
      ( ( ( ! [SY2342: $i] :
              ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV178 @ SY2342 ) ) )
        = $true )
      | ( ( in @ SV36 @ SV178 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[973]) ).

thf(1045,plain,
    ! [SV186: $i,SV179: $i,SV63: $i,SV36: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV179 @ SV186 ) )
        | ( in @ SV63 @ SV186 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[974]) ).

thf(1046,plain,
    ! [SV187: $i,SV180: $i,SV82: $i] :
      ( ( ( ( ( sK36_B @ SV82 )
           != ( ordered_pair @ SV180 @ SV187 ) ) )
        = $true )
      | ( ( relation @ SV82 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[975]) ).

thf(1047,plain,
    ! [SV156: $i,SV37: $i] :
      ( ( ( ~ ( subset @ SV37 @ SV156 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SV156 ) )
        = $true )
      | ( ( relation @ SV156 )
        = $false )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[977]) ).

thf(1048,plain,
    ! [SV157: $i,SV37: $i] :
      ( ( ( ~ ( subset @ SV37 @ SV157 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SV157 ) )
        = $true )
      | ( ( relation @ SV157 )
        = $false )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[978]) ).

thf(1049,plain,
    ! [SV160: $i,SV181: $i] :
      ( ( ( ~ ( element @ SV181 @ SV160 ) )
        = $true )
      | ( ( in @ SV181 @ SV160 )
        = $true )
      | ( ( empty @ SV160 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[980]) ).

thf(1050,plain,
    ! [SV161: $i,SV182: $i] :
      ( ( ( ~ ( in @ SV182 @ SV161 ) )
        = $true )
      | ( ( element @ SV182 @ SV161 )
        = $true )
      | ( ( empty @ SV161 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[981]) ).

thf(1051,plain,
    ! [SV162: $i,SV188: $i] :
      ( ( ( ~ ( element @ SV188 @ SV162 )
          | ( empty @ SV188 ) )
        = $true )
      | ( ( empty @ SV162 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[982]) ).

thf(1052,plain,
    ! [SV163: $i,SV189: $i] :
      ( ( ( ~ ( empty @ SV189 )
          | ( element @ SV189 @ SV163 ) )
        = $true )
      | ( ( empty @ SV163 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[983]) ).

thf(1053,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
          | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
          | ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[984]) ).

thf(1054,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
                  | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
              | ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
                  | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) ) ) )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[985]) ).

thf(1055,plain,
    ! [SV140: $i,SV122: $i,SV38: $i] :
      ( ( ( ~ ! [SY2305: $i] :
                ( ~ ( in @ SY2305 @ SV38 )
                | ( in @ SY2305 @ SV122 )
                | ( in @ SY2305 @ SV140 ) ) )
        = $false )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[986]) ).

thf(1056,plain,
    ! [SV122: $i,SV38: $i,SV140: $i] :
      ( ( ( ~ ~ ( ~ ! [SY2306: $i] :
                      ( ~ ( in @ SY2306 @ SV140 )
                      | ( in @ SY2306 @ SV38 ) )
                | ~ ! [SY2307: $i] :
                      ( ~ ( in @ SY2307 @ SV140 )
                      | ~ ( in @ SY2307 @ SV122 ) ) ) )
        = $false )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[986]) ).

thf(1057,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
          | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
          | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[987]) ).

thf(1058,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
                  | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
              | ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
                  | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) ) ) )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[988]) ).

thf(1059,plain,
    ! [SV142: $i,SV124: $i,SV39: $i] :
      ( ( ( ~ ! [SY2308: $i] :
                ( ~ ( in @ SY2308 @ SV39 )
                | ~ ( in @ SY2308 @ SV124 )
                | ( in @ SY2308 @ SV142 ) ) )
        = $false )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[989]) ).

thf(1060,plain,
    ! [SV124: $i,SV39: $i,SV142: $i] :
      ( ( ( ~ ~ ( ~ ! [SY2309: $i] :
                      ( ~ ( in @ SY2309 @ SV142 )
                      | ( in @ SY2309 @ SV39 ) )
                | ~ ! [SY2310: $i] :
                      ( ~ ( in @ SY2310 @ SV142 )
                      | ( in @ SY2310 @ SV124 ) ) ) )
        = $false )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[989]) ).

thf(1061,plain,
    ! [SV128: $i,SV96: $i,SV23: $i] :
      ( ( ( ! [SY2289: $i,SY2290: $i] :
              ( ~ ( in @ SY2289 @ SV23 )
              | ~ ( in @ SY2290 @ SV96 )
              | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
               != ( ordered_pair @ SY2289 @ SY2290 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[992]) ).

thf(1062,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
                    | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) )
              | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
               != ( ordered_pair @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[993]) ).

thf(1063,plain,
    ! [SV129: $i,SV97: $i,SV23: $i] :
      ( ( ( ! [SY2291: $i] :
              ( ! [SY2254: $i,SY2255: $i] :
                  ( ~ ( in @ SY2254 @ SV23 )
                  | ~ ( in @ SY2255 @ SV97 )
                  | ( SY2291
                   != ( ordered_pair @ SY2254 @ SY2255 ) ) )
              | ( in @ SY2291 @ SV129 ) ) )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[994]) ).

thf(1064,plain,
    ! [SV23: $i,SV97: $i,SV129: $i] :
      ( ( ( ! [SY2294: $i] :
              ( ~ ( in @ SY2294 @ SV129 )
              | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                        | ~ ( in @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
                  | ( SY2294
                   != ( ordered_pair @ ( sK21_E @ SY2294 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SY2294 @ SV129 @ SV97 @ SV23 ) ) ) ) ) )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[995]) ).

thf(1065,plain,
    ! [SV190: $i,SV70: $i,SV98: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV190 )
          | ~ ( in @ SV190 @ SV70 ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[996]) ).

thf(1066,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ ( sK15_SY2048 @ SV98 @ SV70 ) )
          | ~ ( in @ ( sK15_SY2048 @ SV98 @ SV70 ) @ SV70 ) )
        = $false )
      | ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[997]) ).

thf(1067,plain,
    ! [SV99: $i,SV71: $i,SV191: $i] :
      ( ( ( ! [SY2345: $i] :
              ( ~ ( in @ SV191 @ SY2345 )
              | ~ ( in @ SY2345 @ SV71 ) )
          | ( in @ SV191 @ SV99 ) )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[998]) ).

thf(1068,plain,
    ! [SV71: $i,SV99: $i,SV192: $i] :
      ( ( ( ~ ( in @ SV192 @ SV99 )
          | ~ ( ~ ( in @ SV192 @ ( sK13_D @ SV192 @ SV99 @ SV71 ) )
              | ~ ( in @ ( sK13_D @ SV192 @ SV99 @ SV71 ) @ SV71 ) ) )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[999]) ).

thf(1069,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
              | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) )
          | ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
              | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) )
        = $false )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1000]) ).

thf(1070,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
        = $true )
      | ( ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 )
          | ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1001]) ).

thf(1071,plain,
    ! [SV101: $i,SV24: $i,SV131: $i] :
      ( ( ( ! [SY2295: $i] :
              ( ~ ( in @ SY2295 @ SV131 )
              | ( in @ SY2295 @ SV24 )
              | ( in @ SY2295 @ SV101 ) ) )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1002]) ).

thf(1072,plain,
    ! [SV101: $i,SV131: $i,SV24: $i] :
      ( ( ( ~ ( ~ ! [SY2296: $i] :
                    ( ~ ( in @ SY2296 @ SV24 )
                    | ( in @ SY2296 @ SV131 ) )
              | ~ ! [SY2297: $i] :
                    ( ~ ( in @ SY2297 @ SV101 )
                    | ( in @ SY2297 @ SV131 ) ) ) )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1003]) ).

thf(1073,plain,
    ! [SV143: $i,SV103: $i,SV73: $i] :
      ( ( ( disjoint @ SV73 @ SV103 )
        = $false )
      | ( ( in @ SV143 @ SV73 )
        = $false )
      | ( ( in @ SV143 @ SV103 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1004]) ).

thf(1074,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ( ~ ( element @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
              | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                        | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
                    | ~ ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                        | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) ) ) )
        = $true )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1005]) ).

thf(1075,plain,
    ! [SV58: $i,SV25: $i,SV165: $i] :
      ( ( ( ( SV165
           != ( complements_of_subsets @ SV25 @ SV58 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2331: $i] :
                    ( ~ ( element @ SY2331 @ ( powerset @ SV25 ) )
                    | ~ ( in @ SY2331 @ SV165 )
                    | ( in @ ( subset_complement @ SV25 @ SY2331 ) @ SV58 ) )
              | ~ ! [SY2332: $i] :
                    ( ~ ( element @ SY2332 @ ( powerset @ SV25 ) )
                    | ~ ( in @ ( subset_complement @ SV25 @ SY2332 ) @ SV58 )
                    | ( in @ SY2332 @ SV165 ) ) ) )
        = $true )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1006]) ).

thf(1076,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
              | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
               != SV26 ) )
          | ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
              | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
               != SV104 ) ) )
        = $false )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1007]) ).

thf(1077,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
        = $true )
      | ( ( ( ( sK27_D @ SV132 @ SV104 @ SV26 )
            = SV26 )
          | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
            = SV104 ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1008]) ).

thf(1078,plain,
    ! [SV105: $i,SV26: $i,SV133: $i] :
      ( ( ( ! [SY2298: $i] :
              ( ~ ( in @ SY2298 @ SV133 )
              | ( SY2298 = SV26 )
              | ( SY2298 = SV105 ) ) )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1009]) ).

thf(1079,plain,
    ! [SV105: $i,SV133: $i,SV26: $i] :
      ( ( ( ~ ( ~ ! [SY2299: $i] :
                    ( ( SY2299 != SV26 )
                    | ( in @ SY2299 @ SV133 ) )
              | ~ ! [SY2300: $i] :
                    ( ( SY2300 != SV105 )
                    | ( in @ SY2300 @ SV133 ) ) ) )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1010]) ).

thf(1080,plain,
    ! [SV136: $i,SV28: $i,SV145: $i,SV60: $i] :
      ( ( ( in @ SV60 @ SV145 )
        = $false )
      | ( ( in @ SV28 @ SV136 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV136 @ SV145 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1011]) ).

thf(1081,plain,
    ! [SV193: $i,SV172: $i,SV60: $i,SV28: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV172 @ SV193 ) ) )
        = $true )
      | ( ( in @ SV28 @ SV172 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1012]) ).

thf(1082,plain,
    ! [SV183: $i,SV173: $i,SV60: $i,SV28: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV173 @ SV183 ) ) )
        = $true )
      | ( ( in @ SV60 @ SV183 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1013]) ).

thf(1083,plain,
    ! [SV29: $i,SV167: $i] :
      ( ( ( ~ ! [SY2333: $i] :
                ( ~ ( subset @ SY2333 @ SV167 )
                | ( in @ SY2333 @ ( sK5_SY2040 @ SV167 @ SV29 ) ) ) )
        = $false )
      | ( ( ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1014]) ).

thf(1084,plain,
    ! [SV29: $i,SV167: $i] :
      ( ( ( ~ ( in @ ( sK5_SY2040 @ SV167 @ SV29 ) @ ( sK4_B @ SV29 ) ) )
        = $false )
      | ( ( ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1014]) ).

thf(1085,plain,
    ! [SV29: $i,SV194: $i] :
      ( ( ! [SY2346: $i] :
            ( ~ ( in @ SV194 @ ( sK4_B @ SV29 ) )
            | ~ ( subset @ SY2346 @ SV194 )
            | ( in @ SY2346 @ ( sK4_B @ SV29 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1015]) ).

thf(1086,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
        = $false )
      | ( ( ~ ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 ) )
        = $true )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1017]) ).

thf(1087,plain,
    ! [SV75: $i,SV108: $i,SV195: $i] :
      ( ( ( ~ ( in @ SV195 @ SV108 )
          | ( subset @ SV195 @ SV75 ) )
        = $true )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1019]) ).

thf(1088,plain,
    ! [SV108: $i,SV75: $i,SV196: $i] :
      ( ( ( ~ ( subset @ SV196 @ SV75 )
          | ( in @ SV196 @ SV108 ) )
        = $true )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1020]) ).

thf(1089,plain,
    ! [SV30: $i,SV146: $i] :
      ( ( ( ! [SY2311: $i] :
              ~ ( in @ ( ordered_pair @ SY2311 @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
          | ~ ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) )
        = $true )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1021]) ).

thf(1090,plain,
    ! [SV30: $i,SV146: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV146 @ SV30 ) @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
          | ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) )
        = $true )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1022]) ).

thf(1091,plain,
    ! [SV147: $i,SV30: $i] :
      ( ( ( ~ ! [SY2312: $i] :
                ( ! [SY2145: $i] :
                    ~ ( in @ ( ordered_pair @ SY2145 @ SY2312 ) @ SV30 )
                | ( in @ SY2312 @ SV147 ) ) )
        = $false )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1023]) ).

thf(1092,plain,
    ! [SV30: $i,SV147: $i] :
      ( ( ( ~ ! [SY2314: $i] :
                ( ~ ( in @ SY2314 @ SV147 )
                | ( in @ ( ordered_pair @ ( sK9_D @ SY2314 @ SV147 @ SV30 ) @ SY2314 ) @ SV30 ) ) )
        = $false )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1023]) ).

thf(1093,plain,
    ! [SV174: $i,SV169: $i,SV32: $i] :
      ( ( ( subset @ ( unordered_pair @ SV32 @ SV169 ) @ SV174 )
        = $false )
      | ( ( in @ SV32 @ SV174 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1027]) ).

thf(1094,plain,
    ! [SV175: $i,SV170: $i,SV32: $i] :
      ( ( ( subset @ ( unordered_pair @ SV32 @ SV170 ) @ SV175 )
        = $false )
      | ( ( in @ SV170 @ SV175 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1028]) ).

thf(1095,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 )
                  | ~ ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) ) )
              | ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
          | ~ ( ! [SY2338: $i] :
                  ( ~ ( in @ SY2338 @ SV148 )
                  | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SY2338 ) )
              | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) ) )
        = $false )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1029]) ).

thf(1096,plain,
    ! [SV149: $i,SV177: $i] :
      ( ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2339: $i] :
                    ( ~ ( ~ ( in @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) @ SV149 )
                        | ~ ~ ( in @ SY2339 @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) ) )
                    | ( in @ SY2339 @ SV177 ) )
              | ~ ! [SY2340: $i] :
                    ( ~ ( in @ SY2340 @ SV177 )
                    | ! [SY2320: $i] :
                        ( ~ ( in @ SY2320 @ SV149 )
                        | ( in @ SY2340 @ SY2320 ) ) ) ) )
        = $true )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1030]) ).

thf(1097,plain,
    ! [SV150: $i,SV184: $i] :
      ( ( ( ( SV184
           != ( set_meet @ SV150 ) ) )
        = $true )
      | ( ( SV184 = empty_set )
        = $true )
      | ( ( SV150 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1031]) ).

thf(1098,plain,
    ! [SV151: $i,SV185: $i] :
      ( ( ( ( SV185 != empty_set ) )
        = $true )
      | ( ( SV185
          = ( set_meet @ SV151 ) )
        = $true )
      | ( ( SV151 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1032]) ).

thf(1099,plain,
    ! [SV33: $i,SV152: $i] :
      ( ( ( ! [SY2323: $i] :
              ~ ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ SY2323 ) @ SV33 )
          | ~ ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) )
        = $true )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1033]) ).

thf(1100,plain,
    ! [SV33: $i,SV152: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ ( sK18_SY2050 @ SV152 @ SV33 ) ) @ SV33 )
          | ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) )
        = $true )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1034]) ).

thf(1101,plain,
    ! [SV153: $i,SV33: $i] :
      ( ( ( ~ ! [SY2324: $i] :
                ( ! [SY2158: $i] :
                    ~ ( in @ ( ordered_pair @ SY2324 @ SY2158 ) @ SV33 )
                | ( in @ SY2324 @ SV153 ) ) )
        = $false )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1035]) ).

thf(1102,plain,
    ! [SV33: $i,SV153: $i] :
      ( ( ( ~ ! [SY2326: $i] :
                ( ~ ( in @ SY2326 @ SV153 )
                | ( in @ ( ordered_pair @ SY2326 @ ( sK16_D @ SY2326 @ SV153 @ SV33 ) ) @ SV33 ) ) )
        = $false )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1035]) ).

thf(1103,plain,
    ! [SV34: $i,SV197: $i] :
      ( ( ! [SY2347: $i] :
            ( ~ ( in @ SV197 @ ( sK39_B @ SV34 ) )
            | ~ ( subset @ SY2347 @ SV197 )
            | ( in @ SY2347 @ ( sK39_B @ SV34 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1037]) ).

thf(1104,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( ( sK30_C @ SV115 @ SV80 )
          = SV80 )
        = $false )
      | ( ( ~ ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 ) )
        = $true )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1039]) ).

thf(1105,plain,
    ! [SV116: $i,SV81: $i,SV198: $i] :
      ( ( ( ( SV198 != SV81 )
          | ( in @ SV198 @ SV116 ) )
        = $true )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1041]) ).

thf(1106,plain,
    ! [SV81: $i,SV116: $i,SV199: $i] :
      ( ( ( ~ ( in @ SV199 @ SV116 )
          | ( SV199 = SV81 ) )
        = $true )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1042]) ).

thf(1107,plain,
    ! [SV138: $i,SV36: $i,SV154: $i,SV63: $i] :
      ( ( ( in @ SV63 @ SV154 )
        = $false )
      | ( ( in @ SV36 @ SV138 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV138 @ SV154 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1043]) ).

thf(1108,plain,
    ! [SV200: $i,SV178: $i,SV63: $i,SV36: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV178 @ SV200 ) ) )
        = $true )
      | ( ( in @ SV36 @ SV178 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1044]) ).

thf(1109,plain,
    ! [SV186: $i,SV179: $i,SV63: $i,SV36: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV179 @ SV186 ) ) )
        = $true )
      | ( ( in @ SV63 @ SV186 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1045]) ).

thf(1110,plain,
    ! [SV187: $i,SV180: $i,SV82: $i] :
      ( ( ( ( sK36_B @ SV82 )
          = ( ordered_pair @ SV180 @ SV187 ) )
        = $false )
      | ( ( relation @ SV82 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1046]) ).

thf(1111,plain,
    ! [SV156: $i,SV37: $i] :
      ( ( ( subset @ SV37 @ SV156 )
        = $false )
      | ( ( subset @ ( relation_dom @ SV37 ) @ ( relation_dom @ SV156 ) )
        = $true )
      | ( ( relation @ SV156 )
        = $false )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1047]) ).

thf(1112,plain,
    ! [SV157: $i,SV37: $i] :
      ( ( ( subset @ SV37 @ SV157 )
        = $false )
      | ( ( subset @ ( relation_rng @ SV37 ) @ ( relation_rng @ SV157 ) )
        = $true )
      | ( ( relation @ SV157 )
        = $false )
      | ( ( relation @ SV37 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1048]) ).

thf(1113,plain,
    ! [SV160: $i,SV181: $i] :
      ( ( ( element @ SV181 @ SV160 )
        = $false )
      | ( ( in @ SV181 @ SV160 )
        = $true )
      | ( ( empty @ SV160 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1049]) ).

thf(1114,plain,
    ! [SV161: $i,SV182: $i] :
      ( ( ( in @ SV182 @ SV161 )
        = $false )
      | ( ( element @ SV182 @ SV161 )
        = $true )
      | ( ( empty @ SV161 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1050]) ).

thf(1115,plain,
    ! [SV162: $i,SV188: $i] :
      ( ( ( ~ ( element @ SV188 @ SV162 ) )
        = $true )
      | ( ( empty @ SV188 )
        = $true )
      | ( ( empty @ SV162 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1051]) ).

thf(1116,plain,
    ! [SV163: $i,SV189: $i] :
      ( ( ( ~ ( empty @ SV189 ) )
        = $true )
      | ( ( element @ SV189 @ SV163 )
        = $true )
      | ( ( empty @ SV163 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1052]) ).

thf(1117,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
          | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1053]) ).

thf(1118,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
              | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
          | ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
              | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) ) )
        = $false )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1054]) ).

thf(1119,plain,
    ! [SV140: $i,SV122: $i,SV38: $i] :
      ( ( ( ! [SY2305: $i] :
              ( ~ ( in @ SY2305 @ SV38 )
              | ( in @ SY2305 @ SV122 )
              | ( in @ SY2305 @ SV140 ) ) )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1055]) ).

thf(1120,plain,
    ! [SV122: $i,SV38: $i,SV140: $i] :
      ( ( ( ~ ( ~ ! [SY2306: $i] :
                    ( ~ ( in @ SY2306 @ SV140 )
                    | ( in @ SY2306 @ SV38 ) )
              | ~ ! [SY2307: $i] :
                    ( ~ ( in @ SY2307 @ SV140 )
                    | ~ ( in @ SY2307 @ SV122 ) ) ) )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1056]) ).

thf(1121,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
          | ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1057]) ).

thf(1122,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
              | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
          | ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
              | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) ) )
        = $false )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1058]) ).

thf(1123,plain,
    ! [SV142: $i,SV124: $i,SV39: $i] :
      ( ( ( ! [SY2308: $i] :
              ( ~ ( in @ SY2308 @ SV39 )
              | ~ ( in @ SY2308 @ SV124 )
              | ( in @ SY2308 @ SV142 ) ) )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1059]) ).

thf(1124,plain,
    ! [SV124: $i,SV39: $i,SV142: $i] :
      ( ( ( ~ ( ~ ! [SY2309: $i] :
                    ( ~ ( in @ SY2309 @ SV142 )
                    | ( in @ SY2309 @ SV39 ) )
              | ~ ! [SY2310: $i] :
                    ( ~ ( in @ SY2310 @ SV142 )
                    | ( in @ SY2310 @ SV124 ) ) ) )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1060]) ).

thf(1125,plain,
    ! [SV128: $i,SV96: $i,SV23: $i,SV201: $i] :
      ( ( ( ! [SY2348: $i] :
              ( ~ ( in @ SV201 @ SV23 )
              | ~ ( in @ SY2348 @ SV96 )
              | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
               != ( ordered_pair @ SV201 @ SY2348 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1061]) ).

thf(1126,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
                | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) )
          | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
           != ( ordered_pair @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1062]) ).

thf(1127,plain,
    ! [SV129: $i,SV202: $i,SV97: $i,SV23: $i] :
      ( ( ( ! [SY2349: $i,SY2350: $i] :
              ( ~ ( in @ SY2349 @ SV23 )
              | ~ ( in @ SY2350 @ SV97 )
              | ( SV202
               != ( ordered_pair @ SY2349 @ SY2350 ) ) )
          | ( in @ SV202 @ SV129 ) )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1063]) ).

thf(1128,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV129 )
          | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                    | ~ ( in @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
              | ( SV203
               != ( ordered_pair @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) ) ) ) )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1064]) ).

thf(1129,plain,
    ! [SV190: $i,SV70: $i,SV98: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV190 ) )
        = $true )
      | ( ( ~ ( in @ SV190 @ SV70 ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1065]) ).

thf(1130,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ ( sK15_SY2048 @ SV98 @ SV70 ) ) )
        = $false )
      | ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1066]) ).

thf(1131,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( ~ ( in @ ( sK15_SY2048 @ SV98 @ SV70 ) @ SV70 ) )
        = $false )
      | ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1066]) ).

thf(1132,plain,
    ! [SV99: $i,SV71: $i,SV191: $i] :
      ( ( ( ! [SY2345: $i] :
              ( ~ ( in @ SV191 @ SY2345 )
              | ~ ( in @ SY2345 @ SV71 ) ) )
        = $true )
      | ( ( in @ SV191 @ SV99 )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1067]) ).

thf(1133,plain,
    ! [SV71: $i,SV99: $i,SV192: $i] :
      ( ( ( ~ ( in @ SV192 @ SV99 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV192 @ ( sK13_D @ SV192 @ SV99 @ SV71 ) )
              | ~ ( in @ ( sK13_D @ SV192 @ SV99 @ SV71 ) @ SV71 ) ) )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1068]) ).

thf(1134,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
              | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) ) )
        = $false )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1069]) ).

thf(1135,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
              | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) ) )
        = $false )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1069]) ).

thf(1136,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 )
        = $true )
      | ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 )
        = $true )
      | ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1070]) ).

thf(1137,plain,
    ! [SV101: $i,SV24: $i,SV131: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV131 )
          | ( in @ SV204 @ SV24 )
          | ( in @ SV204 @ SV101 ) )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1071]) ).

thf(1138,plain,
    ! [SV101: $i,SV131: $i,SV24: $i] :
      ( ( ( ~ ! [SY2296: $i] :
                ( ~ ( in @ SY2296 @ SV24 )
                | ( in @ SY2296 @ SV131 ) )
          | ~ ! [SY2297: $i] :
                ( ~ ( in @ SY2297 @ SV101 )
                | ( in @ SY2297 @ SV131 ) ) )
        = $false )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1072]) ).

thf(1139,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ( element @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
          | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                    | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
                | ~ ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                    | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
        = $false )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1074]) ).

thf(1140,plain,
    ! [SV58: $i,SV25: $i,SV165: $i] :
      ( ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2331: $i] :
                    ( ~ ( element @ SY2331 @ ( powerset @ SV25 ) )
                    | ~ ( in @ SY2331 @ SV165 )
                    | ( in @ ( subset_complement @ SV25 @ SY2331 ) @ SV58 ) )
              | ~ ! [SY2332: $i] :
                    ( ~ ( element @ SY2332 @ ( powerset @ SV25 ) )
                    | ~ ( in @ ( subset_complement @ SV25 @ SY2332 ) @ SV58 )
                    | ( in @ SY2332 @ SV165 ) ) ) )
        = $true )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1075]) ).

thf(1141,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
              | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
               != SV26 ) ) )
        = $false )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1076]) ).

thf(1142,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
              | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
               != SV104 ) ) )
        = $false )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1076]) ).

thf(1143,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ( sK27_D @ SV132 @ SV104 @ SV26 )
          = SV26 )
        = $true )
      | ( ( ( sK27_D @ SV132 @ SV104 @ SV26 )
          = SV104 )
        = $true )
      | ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1077]) ).

thf(1144,plain,
    ! [SV105: $i,SV26: $i,SV133: $i,SV205: $i] :
      ( ( ( ~ ( in @ SV205 @ SV133 )
          | ( SV205 = SV26 )
          | ( SV205 = SV105 ) )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1078]) ).

thf(1145,plain,
    ! [SV105: $i,SV133: $i,SV26: $i] :
      ( ( ( ~ ! [SY2299: $i] :
                ( ( SY2299 != SV26 )
                | ( in @ SY2299 @ SV133 ) )
          | ~ ! [SY2300: $i] :
                ( ( SY2300 != SV105 )
                | ( in @ SY2300 @ SV133 ) ) )
        = $false )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1079]) ).

thf(1146,plain,
    ! [SV193: $i,SV172: $i,SV60: $i,SV28: $i] :
      ( ( ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV172 @ SV193 ) )
        = $false )
      | ( ( in @ SV28 @ SV172 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1081]) ).

thf(1147,plain,
    ! [SV183: $i,SV173: $i,SV60: $i,SV28: $i] :
      ( ( ( in @ ( ordered_pair @ SV28 @ SV60 ) @ ( cartesian_product2 @ SV173 @ SV183 ) )
        = $false )
      | ( ( in @ SV60 @ SV183 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1082]) ).

thf(1148,plain,
    ! [SV29: $i,SV167: $i] :
      ( ( ( ! [SY2333: $i] :
              ( ~ ( subset @ SY2333 @ SV167 )
              | ( in @ SY2333 @ ( sK5_SY2040 @ SV167 @ SV29 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1083]) ).

thf(1149,plain,
    ! [SV29: $i,SV167: $i] :
      ( ( ( in @ ( sK5_SY2040 @ SV167 @ SV29 ) @ ( sK4_B @ SV29 ) )
        = $true )
      | ( ( ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1084]) ).

thf(1150,plain,
    ! [SV206: $i,SV29: $i,SV194: $i] :
      ( ( ~ ( in @ SV194 @ ( sK4_B @ SV29 ) )
        | ~ ( subset @ SV206 @ SV194 )
        | ( in @ SV206 @ ( sK4_B @ SV29 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1085]) ).

thf(1151,plain,
    ! [SV74: $i,SV107: $i] :
      ( ( ( subset @ ( sK28_C @ SV107 @ SV74 ) @ SV74 )
        = $false )
      | ( ( in @ ( sK28_C @ SV107 @ SV74 ) @ SV107 )
        = $false )
      | ( ( SV107
          = ( powerset @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1086]) ).

thf(1152,plain,
    ! [SV75: $i,SV108: $i,SV195: $i] :
      ( ( ( ~ ( in @ SV195 @ SV108 ) )
        = $true )
      | ( ( subset @ SV195 @ SV75 )
        = $true )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1087]) ).

thf(1153,plain,
    ! [SV108: $i,SV75: $i,SV196: $i] :
      ( ( ( ~ ( subset @ SV196 @ SV75 ) )
        = $true )
      | ( ( in @ SV196 @ SV108 )
        = $true )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1088]) ).

thf(1154,plain,
    ! [SV30: $i,SV146: $i] :
      ( ( ( ! [SY2311: $i] :
              ~ ( in @ ( ordered_pair @ SY2311 @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) )
        = $true )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1089]) ).

thf(1155,plain,
    ! [SV30: $i,SV146: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV146 @ SV30 ) @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
        = $true )
      | ( ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 )
        = $true )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1090]) ).

thf(1156,plain,
    ! [SV147: $i,SV30: $i] :
      ( ( ( ! [SY2312: $i] :
              ( ! [SY2145: $i] :
                  ~ ( in @ ( ordered_pair @ SY2145 @ SY2312 ) @ SV30 )
              | ( in @ SY2312 @ SV147 ) ) )
        = $true )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1091]) ).

thf(1157,plain,
    ! [SV30: $i,SV147: $i] :
      ( ( ( ! [SY2314: $i] :
              ( ~ ( in @ SY2314 @ SV147 )
              | ( in @ ( ordered_pair @ ( sK9_D @ SY2314 @ SV147 @ SV30 ) @ SY2314 ) @ SV30 ) ) )
        = $true )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1092]) ).

thf(1158,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 )
                  | ~ ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) ) )
              | ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) ) )
        = $false )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1095]) ).

thf(1159,plain,
    ! [SV176: $i,SV148: $i] :
      ( ( ( ~ ( ! [SY2338: $i] :
                  ( ~ ( in @ SY2338 @ SV148 )
                  | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SY2338 ) )
              | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) ) )
        = $false )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1095]) ).

thf(1160,plain,
    ! [SV149: $i,SV177: $i] :
      ( ( ( ~ ! [SY2339: $i] :
                ( ~ ( ~ ( in @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) @ SV149 )
                    | ~ ~ ( in @ SY2339 @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) ) )
                | ( in @ SY2339 @ SV177 ) )
          | ~ ! [SY2340: $i] :
                ( ~ ( in @ SY2340 @ SV177 )
                | ! [SY2320: $i] :
                    ( ~ ( in @ SY2320 @ SV149 )
                    | ( in @ SY2340 @ SY2320 ) ) ) )
        = $false )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1096]) ).

thf(1161,plain,
    ! [SV150: $i,SV184: $i] :
      ( ( ( SV184
          = ( set_meet @ SV150 ) )
        = $false )
      | ( ( SV184 = empty_set )
        = $true )
      | ( ( SV150 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1097]) ).

thf(1162,plain,
    ! [SV151: $i,SV185: $i] :
      ( ( ( SV185 = empty_set )
        = $false )
      | ( ( SV185
          = ( set_meet @ SV151 ) )
        = $true )
      | ( ( SV151 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1098]) ).

thf(1163,plain,
    ! [SV33: $i,SV152: $i] :
      ( ( ( ! [SY2323: $i] :
              ~ ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ SY2323 ) @ SV33 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) )
        = $true )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1099]) ).

thf(1164,plain,
    ! [SV33: $i,SV152: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ ( sK18_SY2050 @ SV152 @ SV33 ) ) @ SV33 )
        = $true )
      | ( ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 )
        = $true )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1100]) ).

thf(1165,plain,
    ! [SV153: $i,SV33: $i] :
      ( ( ( ! [SY2324: $i] :
              ( ! [SY2158: $i] :
                  ~ ( in @ ( ordered_pair @ SY2324 @ SY2158 ) @ SV33 )
              | ( in @ SY2324 @ SV153 ) ) )
        = $true )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1101]) ).

thf(1166,plain,
    ! [SV33: $i,SV153: $i] :
      ( ( ( ! [SY2326: $i] :
              ( ~ ( in @ SY2326 @ SV153 )
              | ( in @ ( ordered_pair @ SY2326 @ ( sK16_D @ SY2326 @ SV153 @ SV33 ) ) @ SV33 ) ) )
        = $true )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1102]) ).

thf(1167,plain,
    ! [SV207: $i,SV34: $i,SV197: $i] :
      ( ( ~ ( in @ SV197 @ ( sK39_B @ SV34 ) )
        | ~ ( subset @ SV207 @ SV197 )
        | ( in @ SV207 @ ( sK39_B @ SV34 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1103]) ).

thf(1168,plain,
    ! [SV80: $i,SV115: $i] :
      ( ( ( in @ ( sK30_C @ SV115 @ SV80 ) @ SV115 )
        = $false )
      | ( ( ( sK30_C @ SV115 @ SV80 )
          = SV80 )
        = $false )
      | ( ( SV115
          = ( singleton @ SV80 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1104]) ).

thf(1169,plain,
    ! [SV116: $i,SV81: $i,SV198: $i] :
      ( ( ( ( SV198 != SV81 ) )
        = $true )
      | ( ( in @ SV198 @ SV116 )
        = $true )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1105]) ).

thf(1170,plain,
    ! [SV81: $i,SV116: $i,SV199: $i] :
      ( ( ( ~ ( in @ SV199 @ SV116 ) )
        = $true )
      | ( ( SV199 = SV81 )
        = $true )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1106]) ).

thf(1171,plain,
    ! [SV200: $i,SV178: $i,SV63: $i,SV36: $i] :
      ( ( ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV178 @ SV200 ) )
        = $false )
      | ( ( in @ SV36 @ SV178 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1108]) ).

thf(1172,plain,
    ! [SV186: $i,SV179: $i,SV63: $i,SV36: $i] :
      ( ( ( in @ ( ordered_pair @ SV36 @ SV63 ) @ ( cartesian_product2 @ SV179 @ SV186 ) )
        = $false )
      | ( ( in @ SV63 @ SV186 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1109]) ).

thf(1173,plain,
    ! [SV162: $i,SV188: $i] :
      ( ( ( element @ SV188 @ SV162 )
        = $false )
      | ( ( empty @ SV188 )
        = $true )
      | ( ( empty @ SV162 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1115]) ).

thf(1174,plain,
    ! [SV163: $i,SV189: $i] :
      ( ( ( empty @ SV189 )
        = $false )
      | ( ( element @ SV189 @ SV163 )
        = $true )
      | ( ( empty @ SV163 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1116]) ).

thf(1175,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 ) )
        = $true )
      | ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1117]) ).

thf(1176,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
              | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) ) )
        = $false )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1118]) ).

thf(1177,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
              | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) ) )
        = $false )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1118]) ).

thf(1178,plain,
    ! [SV140: $i,SV122: $i,SV38: $i,SV208: $i] :
      ( ( ( ~ ( in @ SV208 @ SV38 )
          | ( in @ SV208 @ SV122 )
          | ( in @ SV208 @ SV140 ) )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1119]) ).

thf(1179,plain,
    ! [SV122: $i,SV38: $i,SV140: $i] :
      ( ( ( ~ ! [SY2306: $i] :
                ( ~ ( in @ SY2306 @ SV140 )
                | ( in @ SY2306 @ SV38 ) )
          | ~ ! [SY2307: $i] :
                ( ~ ( in @ SY2307 @ SV140 )
                | ~ ( in @ SY2307 @ SV122 ) ) )
        = $false )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1120]) ).

thf(1180,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1121]) ).

thf(1181,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
              | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) ) )
        = $false )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1122]) ).

thf(1182,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
              | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) ) )
        = $false )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1122]) ).

thf(1183,plain,
    ! [SV142: $i,SV124: $i,SV39: $i,SV209: $i] :
      ( ( ( ~ ( in @ SV209 @ SV39 )
          | ~ ( in @ SV209 @ SV124 )
          | ( in @ SV209 @ SV142 ) )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1123]) ).

thf(1184,plain,
    ! [SV124: $i,SV39: $i,SV142: $i] :
      ( ( ( ~ ! [SY2309: $i] :
                ( ~ ( in @ SY2309 @ SV142 )
                | ( in @ SY2309 @ SV39 ) )
          | ~ ! [SY2310: $i] :
                ( ~ ( in @ SY2310 @ SV142 )
                | ( in @ SY2310 @ SV124 ) ) )
        = $false )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1124]) ).

thf(1185,plain,
    ! [SV128: $i,SV96: $i,SV210: $i,SV23: $i,SV201: $i] :
      ( ( ( ~ ( in @ SV201 @ SV23 )
          | ~ ( in @ SV210 @ SV96 )
          | ( ( sK23_D @ SV128 @ SV96 @ SV23 )
           != ( ordered_pair @ SV201 @ SV210 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1125]) ).

thf(1186,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
                | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1126]) ).

thf(1187,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ( ( sK23_D @ SV128 @ SV96 @ SV23 )
           != ( ordered_pair @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1126]) ).

thf(1188,plain,
    ! [SV129: $i,SV202: $i,SV97: $i,SV23: $i] :
      ( ( ( ! [SY2349: $i,SY2350: $i] :
              ( ~ ( in @ SY2349 @ SV23 )
              | ~ ( in @ SY2350 @ SV97 )
              | ( SV202
               != ( ordered_pair @ SY2349 @ SY2350 ) ) ) )
        = $true )
      | ( ( in @ SV202 @ SV129 )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1127]) ).

thf(1189,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV129 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                    | ~ ( in @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
              | ( SV203
               != ( ordered_pair @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) ) ) ) )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1128]) ).

thf(1190,plain,
    ! [SV190: $i,SV70: $i,SV98: $i] :
      ( ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV190 )
        = $false )
      | ( ( ~ ( in @ SV190 @ SV70 ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1129]) ).

thf(1191,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ ( sK15_SY2048 @ SV98 @ SV70 ) )
        = $true )
      | ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1130]) ).

thf(1192,plain,
    ! [SV70: $i,SV98: $i] :
      ( ( ( in @ ( sK15_SY2048 @ SV98 @ SV70 ) @ SV70 )
        = $true )
      | ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1131]) ).

thf(1193,plain,
    ! [SV99: $i,SV71: $i,SV211: $i,SV191: $i] :
      ( ( ( ~ ( in @ SV191 @ SV211 )
          | ~ ( in @ SV211 @ SV71 ) )
        = $true )
      | ( ( in @ SV191 @ SV99 )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1132]) ).

thf(1194,plain,
    ! [SV71: $i,SV99: $i,SV192: $i] :
      ( ( ( in @ SV192 @ SV99 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV192 @ ( sK13_D @ SV192 @ SV99 @ SV71 ) )
              | ~ ( in @ ( sK13_D @ SV192 @ SV99 @ SV71 ) @ SV71 ) ) )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1133]) ).

thf(1195,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
          | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1134]) ).

thf(1196,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
          | ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1135]) ).

thf(1197,plain,
    ! [SV101: $i,SV24: $i,SV131: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV131 ) )
        = $true )
      | ( ( ( in @ SV204 @ SV24 )
          | ( in @ SV204 @ SV101 ) )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1137]) ).

thf(1198,plain,
    ! [SV101: $i,SV131: $i,SV24: $i] :
      ( ( ( ~ ! [SY2296: $i] :
                ( ~ ( in @ SY2296 @ SV24 )
                | ( in @ SY2296 @ SV131 ) ) )
        = $false )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1138]) ).

thf(1199,plain,
    ! [SV24: $i,SV131: $i,SV101: $i] :
      ( ( ( ~ ! [SY2297: $i] :
                ( ~ ( in @ SY2297 @ SV101 )
                | ( in @ SY2297 @ SV131 ) ) )
        = $false )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1138]) ).

thf(1200,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ( element @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1139]) ).

thf(1201,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                    | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
                | ~ ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                    | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
        = $false )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1139]) ).

thf(1202,plain,
    ! [SV58: $i,SV165: $i,SV25: $i] :
      ( ( ( ~ ! [SY2331: $i] :
                ( ~ ( element @ SY2331 @ ( powerset @ SV25 ) )
                | ~ ( in @ SY2331 @ SV165 )
                | ( in @ ( subset_complement @ SV25 @ SY2331 ) @ SV58 ) )
          | ~ ! [SY2332: $i] :
                ( ~ ( element @ SY2332 @ ( powerset @ SV25 ) )
                | ~ ( in @ ( subset_complement @ SV25 @ SY2332 ) @ SV58 )
                | ( in @ SY2332 @ SV165 ) ) )
        = $false )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1140]) ).

thf(1203,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
          | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
           != SV26 ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1141]) ).

thf(1204,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
          | ( ( sK27_D @ SV132 @ SV104 @ SV26 )
           != SV104 ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1142]) ).

thf(1205,plain,
    ! [SV105: $i,SV26: $i,SV133: $i,SV205: $i] :
      ( ( ( ~ ( in @ SV205 @ SV133 ) )
        = $true )
      | ( ( ( SV205 = SV26 )
          | ( SV205 = SV105 ) )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1144]) ).

thf(1206,plain,
    ! [SV105: $i,SV133: $i,SV26: $i] :
      ( ( ( ~ ! [SY2299: $i] :
                ( ( SY2299 != SV26 )
                | ( in @ SY2299 @ SV133 ) ) )
        = $false )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1145]) ).

thf(1207,plain,
    ! [SV26: $i,SV133: $i,SV105: $i] :
      ( ( ( ~ ! [SY2300: $i] :
                ( ( SY2300 != SV105 )
                | ( in @ SY2300 @ SV133 ) ) )
        = $false )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1145]) ).

thf(1208,plain,
    ! [SV29: $i,SV167: $i,SV212: $i] :
      ( ( ( ~ ( subset @ SV212 @ SV167 )
          | ( in @ SV212 @ ( sK5_SY2040 @ SV167 @ SV29 ) ) )
        = $true )
      | ( ( ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1148]) ).

thf(1209,plain,
    ! [SV29: $i,SV167: $i] :
      ( ( ( in @ SV167 @ ( sK4_B @ SV29 ) )
        = $false )
      | ( ( in @ ( sK5_SY2040 @ SV167 @ SV29 ) @ ( sK4_B @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1149]) ).

thf(1210,plain,
    ! [SV206: $i,SV29: $i,SV194: $i] :
      ( ( ( ~ ( in @ SV194 @ ( sK4_B @ SV29 ) )
          | ~ ( subset @ SV206 @ SV194 ) )
        = $true )
      | ( ( in @ SV206 @ ( sK4_B @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1150]) ).

thf(1211,plain,
    ! [SV75: $i,SV108: $i,SV195: $i] :
      ( ( ( in @ SV195 @ SV108 )
        = $false )
      | ( ( subset @ SV195 @ SV75 )
        = $true )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1152]) ).

thf(1212,plain,
    ! [SV108: $i,SV75: $i,SV196: $i] :
      ( ( ( subset @ SV196 @ SV75 )
        = $false )
      | ( ( in @ SV196 @ SV108 )
        = $true )
      | ( ( SV108
          = ( powerset @ SV75 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1153]) ).

thf(1213,plain,
    ! [SV30: $i,SV146: $i,SV213: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV213 @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) )
        = $true )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1154]) ).

thf(1214,plain,
    ! [SV147: $i,SV30: $i,SV214: $i] :
      ( ( ( ! [SY2351: $i] :
              ~ ( in @ ( ordered_pair @ SY2351 @ SV214 ) @ SV30 )
          | ( in @ SV214 @ SV147 ) )
        = $true )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1156]) ).

thf(1215,plain,
    ! [SV30: $i,SV147: $i,SV215: $i] :
      ( ( ( ~ ( in @ SV215 @ SV147 )
          | ( in @ ( ordered_pair @ ( sK9_D @ SV215 @ SV147 @ SV30 ) @ SV215 ) @ SV30 ) )
        = $true )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1157]) ).

thf(1216,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 )
              | ~ ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) ) )
          | ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1158]) ).

thf(1217,plain,
    ! [SV176: $i,SV148: $i] :
      ( ( ( ! [SY2338: $i] :
              ( ~ ( in @ SY2338 @ SV148 )
              | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SY2338 ) )
          | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1159]) ).

thf(1218,plain,
    ! [SV149: $i,SV177: $i] :
      ( ( ( ~ ! [SY2339: $i] :
                ( ~ ( ~ ( in @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) @ SV149 )
                    | ~ ~ ( in @ SY2339 @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) ) )
                | ( in @ SY2339 @ SV177 ) ) )
        = $false )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1160]) ).

thf(1219,plain,
    ! [SV149: $i,SV177: $i] :
      ( ( ( ~ ! [SY2340: $i] :
                ( ~ ( in @ SY2340 @ SV177 )
                | ! [SY2320: $i] :
                    ( ~ ( in @ SY2320 @ SV149 )
                    | ( in @ SY2340 @ SY2320 ) ) ) )
        = $false )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1160]) ).

thf(1220,plain,
    ! [SV216: $i,SV33: $i,SV152: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ SV216 ) @ SV33 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) )
        = $true )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1163]) ).

thf(1221,plain,
    ! [SV153: $i,SV33: $i,SV217: $i] :
      ( ( ( ! [SY2352: $i] :
              ~ ( in @ ( ordered_pair @ SV217 @ SY2352 ) @ SV33 )
          | ( in @ SV217 @ SV153 ) )
        = $true )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1165]) ).

thf(1222,plain,
    ! [SV33: $i,SV153: $i,SV218: $i] :
      ( ( ( ~ ( in @ SV218 @ SV153 )
          | ( in @ ( ordered_pair @ SV218 @ ( sK16_D @ SV218 @ SV153 @ SV33 ) ) @ SV33 ) )
        = $true )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1166]) ).

thf(1223,plain,
    ! [SV207: $i,SV34: $i,SV197: $i] :
      ( ( ( ~ ( in @ SV197 @ ( sK39_B @ SV34 ) )
          | ~ ( subset @ SV207 @ SV197 ) )
        = $true )
      | ( ( in @ SV207 @ ( sK39_B @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1167]) ).

thf(1224,plain,
    ! [SV116: $i,SV81: $i,SV198: $i] :
      ( ( ( SV198 = SV81 )
        = $false )
      | ( ( in @ SV198 @ SV116 )
        = $true )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1169]) ).

thf(1225,plain,
    ! [SV81: $i,SV116: $i,SV199: $i] :
      ( ( ( in @ SV199 @ SV116 )
        = $false )
      | ( ( SV199 = SV81 )
        = $true )
      | ( ( SV116
          = ( singleton @ SV81 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1170]) ).

thf(1226,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
        = $false )
      | ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1175]) ).

thf(1227,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
          | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1176]) ).

thf(1228,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
          | ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 ) )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1177]) ).

thf(1229,plain,
    ! [SV140: $i,SV122: $i,SV38: $i,SV208: $i] :
      ( ( ( ~ ( in @ SV208 @ SV38 )
          | ( in @ SV208 @ SV122 ) )
        = $true )
      | ( ( in @ SV208 @ SV140 )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1178]) ).

thf(1230,plain,
    ! [SV122: $i,SV38: $i,SV140: $i] :
      ( ( ( ~ ! [SY2306: $i] :
                ( ~ ( in @ SY2306 @ SV140 )
                | ( in @ SY2306 @ SV38 ) ) )
        = $false )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1179]) ).

thf(1231,plain,
    ! [SV38: $i,SV122: $i,SV140: $i] :
      ( ( ( ~ ! [SY2307: $i] :
                ( ~ ( in @ SY2307 @ SV140 )
                | ~ ( in @ SY2307 @ SV122 ) ) )
        = $false )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1179]) ).

thf(1232,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1180]) ).

thf(1233,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
          | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1181]) ).

thf(1234,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
          | ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1182]) ).

thf(1235,plain,
    ! [SV142: $i,SV124: $i,SV39: $i,SV209: $i] :
      ( ( ( ~ ( in @ SV209 @ SV39 )
          | ~ ( in @ SV209 @ SV124 ) )
        = $true )
      | ( ( in @ SV209 @ SV142 )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1183]) ).

thf(1236,plain,
    ! [SV124: $i,SV39: $i,SV142: $i] :
      ( ( ( ~ ! [SY2309: $i] :
                ( ~ ( in @ SY2309 @ SV142 )
                | ( in @ SY2309 @ SV39 ) ) )
        = $false )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1184]) ).

thf(1237,plain,
    ! [SV39: $i,SV124: $i,SV142: $i] :
      ( ( ( ~ ! [SY2310: $i] :
                ( ~ ( in @ SY2310 @ SV142 )
                | ( in @ SY2310 @ SV124 ) ) )
        = $false )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1184]) ).

thf(1238,plain,
    ! [SV128: $i,SV96: $i,SV210: $i,SV23: $i,SV201: $i] :
      ( ( ( ~ ( in @ SV201 @ SV23 )
          | ~ ( in @ SV210 @ SV96 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV128 @ SV96 @ SV23 )
           != ( ordered_pair @ SV201 @ SV210 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1185]) ).

thf(1239,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
              | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1186]) ).

thf(1240,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ( sK23_D @ SV128 @ SV96 @ SV23 )
          = ( ordered_pair @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1187]) ).

thf(1241,plain,
    ! [SV129: $i,SV202: $i,SV97: $i,SV23: $i,SV219: $i] :
      ( ( ( ! [SY2353: $i] :
              ( ~ ( in @ SV219 @ SV23 )
              | ~ ( in @ SY2353 @ SV97 )
              | ( SV202
               != ( ordered_pair @ SV219 @ SY2353 ) ) ) )
        = $true )
      | ( ( in @ SV202 @ SV129 )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1188]) ).

thf(1242,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                    | ~ ( in @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
              | ( SV203
               != ( ordered_pair @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) ) ) ) )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1189]) ).

thf(1243,plain,
    ! [SV98: $i,SV70: $i,SV190: $i] :
      ( ( ( in @ SV190 @ SV70 )
        = $false )
      | ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV190 )
        = $false )
      | ( ( ~ ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 ) )
        = $true )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1190]) ).

thf(1244,plain,
    ! [SV99: $i,SV71: $i,SV211: $i,SV191: $i] :
      ( ( ( ~ ( in @ SV191 @ SV211 ) )
        = $true )
      | ( ( ~ ( in @ SV211 @ SV71 ) )
        = $true )
      | ( ( in @ SV191 @ SV99 )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1193]) ).

thf(1245,plain,
    ! [SV71: $i,SV99: $i,SV192: $i] :
      ( ( ( ~ ( in @ SV192 @ ( sK13_D @ SV192 @ SV99 @ SV71 ) )
          | ~ ( in @ ( sK13_D @ SV192 @ SV99 @ SV71 ) @ SV71 ) )
        = $false )
      | ( ( in @ SV192 @ SV99 )
        = $false )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1194]) ).

thf(1246,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 ) )
        = $true )
      | ( ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1195]) ).

thf(1247,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 ) )
        = $true )
      | ( ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1196]) ).

thf(1248,plain,
    ! [SV101: $i,SV24: $i,SV131: $i,SV204: $i] :
      ( ( ( in @ SV204 @ SV131 )
        = $false )
      | ( ( ( in @ SV204 @ SV24 )
          | ( in @ SV204 @ SV101 ) )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1197]) ).

thf(1249,plain,
    ! [SV101: $i,SV131: $i,SV24: $i] :
      ( ( ( ! [SY2296: $i] :
              ( ~ ( in @ SY2296 @ SV24 )
              | ( in @ SY2296 @ SV131 ) ) )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1198]) ).

thf(1250,plain,
    ! [SV24: $i,SV131: $i,SV101: $i] :
      ( ( ( ! [SY2297: $i] :
              ( ~ ( in @ SY2297 @ SV101 )
              | ( in @ SY2297 @ SV131 ) ) )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1199]) ).

thf(1251,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( element @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ ( powerset @ SV25 ) )
        = $true )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1200]) ).

thf(1252,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                  | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
              | ~ ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
                  | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) ) )
        = $true )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1201]) ).

thf(1253,plain,
    ! [SV58: $i,SV165: $i,SV25: $i] :
      ( ( ( ~ ! [SY2331: $i] :
                ( ~ ( element @ SY2331 @ ( powerset @ SV25 ) )
                | ~ ( in @ SY2331 @ SV165 )
                | ( in @ ( subset_complement @ SV25 @ SY2331 ) @ SV58 ) ) )
        = $false )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1202]) ).

thf(1254,plain,
    ! [SV165: $i,SV58: $i,SV25: $i] :
      ( ( ( ~ ! [SY2332: $i] :
                ( ~ ( element @ SY2332 @ ( powerset @ SV25 ) )
                | ~ ( in @ ( subset_complement @ SV25 @ SY2332 ) @ SV58 )
                | ( in @ SY2332 @ SV165 ) ) )
        = $false )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1202]) ).

thf(1255,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 ) )
        = $true )
      | ( ( ( ( sK27_D @ SV132 @ SV104 @ SV26 )
           != SV26 ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1203]) ).

thf(1256,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 ) )
        = $true )
      | ( ( ( ( sK27_D @ SV132 @ SV104 @ SV26 )
           != SV104 ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1204]) ).

thf(1257,plain,
    ! [SV105: $i,SV26: $i,SV133: $i,SV205: $i] :
      ( ( ( in @ SV205 @ SV133 )
        = $false )
      | ( ( ( SV205 = SV26 )
          | ( SV205 = SV105 ) )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1205]) ).

thf(1258,plain,
    ! [SV105: $i,SV133: $i,SV26: $i] :
      ( ( ( ! [SY2299: $i] :
              ( ( SY2299 != SV26 )
              | ( in @ SY2299 @ SV133 ) ) )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1206]) ).

thf(1259,plain,
    ! [SV26: $i,SV133: $i,SV105: $i] :
      ( ( ( ! [SY2300: $i] :
              ( ( SY2300 != SV105 )
              | ( in @ SY2300 @ SV133 ) ) )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1207]) ).

thf(1260,plain,
    ! [SV29: $i,SV167: $i,SV212: $i] :
      ( ( ( ~ ( subset @ SV212 @ SV167 ) )
        = $true )
      | ( ( in @ SV212 @ ( sK5_SY2040 @ SV167 @ SV29 ) )
        = $true )
      | ( ( ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1208]) ).

thf(1261,plain,
    ! [SV206: $i,SV29: $i,SV194: $i] :
      ( ( ( ~ ( in @ SV194 @ ( sK4_B @ SV29 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV206 @ SV194 ) )
        = $true )
      | ( ( in @ SV206 @ ( sK4_B @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1210]) ).

thf(1262,plain,
    ! [SV30: $i,SV146: $i,SV213: $i] :
      ( ( ( in @ ( ordered_pair @ SV213 @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
        = $false )
      | ( ( ~ ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 ) )
        = $true )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1213]) ).

thf(1263,plain,
    ! [SV147: $i,SV30: $i,SV214: $i] :
      ( ( ( ! [SY2351: $i] :
              ~ ( in @ ( ordered_pair @ SY2351 @ SV214 ) @ SV30 ) )
        = $true )
      | ( ( in @ SV214 @ SV147 )
        = $true )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1214]) ).

thf(1264,plain,
    ! [SV30: $i,SV147: $i,SV215: $i] :
      ( ( ( ~ ( in @ SV215 @ SV147 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK9_D @ SV215 @ SV147 @ SV30 ) @ SV215 ) @ SV30 )
        = $true )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1215]) ).

thf(1265,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 )
              | ~ ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1216]) ).

thf(1266,plain,
    ! [SV176: $i,SV148: $i] :
      ( ( ( ! [SY2338: $i] :
              ( ~ ( in @ SY2338 @ SV148 )
              | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SY2338 ) ) )
        = $true )
      | ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1217]) ).

thf(1267,plain,
    ! [SV149: $i,SV177: $i] :
      ( ( ( ! [SY2339: $i] :
              ( ~ ( ~ ( in @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) @ SV149 )
                  | ~ ~ ( in @ SY2339 @ ( sK31_D @ SY2339 @ SV177 @ SV149 ) ) )
              | ( in @ SY2339 @ SV177 ) ) )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1218]) ).

thf(1268,plain,
    ! [SV149: $i,SV177: $i] :
      ( ( ( ! [SY2340: $i] :
              ( ~ ( in @ SY2340 @ SV177 )
              | ! [SY2320: $i] :
                  ( ~ ( in @ SY2320 @ SV149 )
                  | ( in @ SY2340 @ SY2320 ) ) ) )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1219]) ).

thf(1269,plain,
    ! [SV216: $i,SV33: $i,SV152: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ SV216 ) @ SV33 )
        = $false )
      | ( ( ~ ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 ) )
        = $true )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1220]) ).

thf(1270,plain,
    ! [SV153: $i,SV33: $i,SV217: $i] :
      ( ( ( ! [SY2352: $i] :
              ~ ( in @ ( ordered_pair @ SV217 @ SY2352 ) @ SV33 ) )
        = $true )
      | ( ( in @ SV217 @ SV153 )
        = $true )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1221]) ).

thf(1271,plain,
    ! [SV33: $i,SV153: $i,SV218: $i] :
      ( ( ( ~ ( in @ SV218 @ SV153 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV218 @ ( sK16_D @ SV218 @ SV153 @ SV33 ) ) @ SV33 )
        = $true )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1222]) ).

thf(1272,plain,
    ! [SV207: $i,SV34: $i,SV197: $i] :
      ( ( ( ~ ( in @ SV197 @ ( sK39_B @ SV34 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV207 @ SV197 ) )
        = $true )
      | ( ( in @ SV207 @ ( sK39_B @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1223]) ).

thf(1273,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 )
        = $false )
      | ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
        = $true )
      | ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
        = $false )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1226]) ).

thf(1274,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV38 )
        = $true )
      | ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1227]) ).

thf(1275,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 ) )
        = $true )
      | ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1228]) ).

thf(1276,plain,
    ! [SV140: $i,SV122: $i,SV38: $i,SV208: $i] :
      ( ( ( ~ ( in @ SV208 @ SV38 ) )
        = $true )
      | ( ( in @ SV208 @ SV122 )
        = $true )
      | ( ( in @ SV208 @ SV140 )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1229]) ).

thf(1277,plain,
    ! [SV122: $i,SV38: $i,SV140: $i] :
      ( ( ( ! [SY2306: $i] :
              ( ~ ( in @ SY2306 @ SV140 )
              | ( in @ SY2306 @ SV38 ) ) )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1230]) ).

thf(1278,plain,
    ! [SV38: $i,SV122: $i,SV140: $i] :
      ( ( ( ! [SY2307: $i] :
              ( ~ ( in @ SY2307 @ SV140 )
              | ~ ( in @ SY2307 @ SV122 ) ) )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1231]) ).

thf(1279,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
        = $false )
      | ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 ) )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1232]) ).

thf(1280,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
        = $true )
      | ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1233]) ).

thf(1281,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
        = $true )
      | ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 )
        = $true )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1234]) ).

thf(1282,plain,
    ! [SV142: $i,SV124: $i,SV39: $i,SV209: $i] :
      ( ( ( ~ ( in @ SV209 @ SV39 ) )
        = $true )
      | ( ( ~ ( in @ SV209 @ SV124 ) )
        = $true )
      | ( ( in @ SV209 @ SV142 )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1235]) ).

thf(1283,plain,
    ! [SV124: $i,SV39: $i,SV142: $i] :
      ( ( ( ! [SY2309: $i] :
              ( ~ ( in @ SY2309 @ SV142 )
              | ( in @ SY2309 @ SV39 ) ) )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1236]) ).

thf(1284,plain,
    ! [SV39: $i,SV124: $i,SV142: $i] :
      ( ( ( ! [SY2310: $i] :
              ( ~ ( in @ SY2310 @ SV142 )
              | ( in @ SY2310 @ SV124 ) ) )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1237]) ).

thf(1285,plain,
    ! [SV128: $i,SV96: $i,SV210: $i,SV23: $i,SV201: $i] :
      ( ( ( ~ ( in @ SV201 @ SV23 ) )
        = $true )
      | ( ( ~ ( in @ SV210 @ SV96 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV128 @ SV96 @ SV23 )
           != ( ordered_pair @ SV201 @ SV210 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1238]) ).

thf(1286,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
          | ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1239]) ).

thf(1287,plain,
    ! [SV129: $i,SV202: $i,SV97: $i,SV220: $i,SV23: $i,SV219: $i] :
      ( ( ( ~ ( in @ SV219 @ SV23 )
          | ~ ( in @ SV220 @ SV97 )
          | ( SV202
           != ( ordered_pair @ SV219 @ SV220 ) ) )
        = $true )
      | ( ( in @ SV202 @ SV129 )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1241]) ).

thf(1288,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                | ~ ( in @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
          | ( SV203
           != ( ordered_pair @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) ) ) )
        = $false )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1242]) ).

thf(1289,plain,
    ! [SV190: $i,SV70: $i,SV98: $i] :
      ( ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV98 )
        = $false )
      | ( ( in @ ( sK14_C @ SV98 @ SV70 ) @ SV190 )
        = $false )
      | ( ( in @ SV190 @ SV70 )
        = $false )
      | ( ( SV98
          = ( union @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1243]) ).

thf(1290,plain,
    ! [SV99: $i,SV71: $i,SV211: $i,SV191: $i] :
      ( ( ( in @ SV191 @ SV211 )
        = $false )
      | ( ( ~ ( in @ SV211 @ SV71 ) )
        = $true )
      | ( ( in @ SV191 @ SV99 )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1244]) ).

thf(1291,plain,
    ! [SV71: $i,SV99: $i,SV192: $i] :
      ( ( ( ~ ( in @ SV192 @ ( sK13_D @ SV192 @ SV99 @ SV71 ) ) )
        = $false )
      | ( ( in @ SV192 @ SV99 )
        = $false )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1245]) ).

thf(1292,plain,
    ! [SV71: $i,SV99: $i,SV192: $i] :
      ( ( ( ~ ( in @ ( sK13_D @ SV192 @ SV99 @ SV71 ) @ SV71 ) )
        = $false )
      | ( ( in @ SV192 @ SV99 )
        = $false )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1245]) ).

thf(1293,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
        = $false )
      | ( ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1246]) ).

thf(1294,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
        = $false )
      | ( ( ~ ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 ) )
        = $true )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1247]) ).

thf(1295,plain,
    ! [SV131: $i,SV101: $i,SV24: $i,SV204: $i] :
      ( ( ( in @ SV204 @ SV24 )
        = $true )
      | ( ( in @ SV204 @ SV101 )
        = $true )
      | ( ( in @ SV204 @ SV131 )
        = $false )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1248]) ).

thf(1296,plain,
    ! [SV101: $i,SV131: $i,SV24: $i,SV221: $i] :
      ( ( ( ~ ( in @ SV221 @ SV24 )
          | ( in @ SV221 @ SV131 ) )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1249]) ).

thf(1297,plain,
    ! [SV24: $i,SV131: $i,SV101: $i,SV222: $i] :
      ( ( ( ~ ( in @ SV222 @ SV101 )
          | ( in @ SV222 @ SV131 ) )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1250]) ).

thf(1298,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
              | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
          | ~ ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
              | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) )
        = $false )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1252]) ).

thf(1299,plain,
    ! [SV58: $i,SV165: $i,SV25: $i] :
      ( ( ( ! [SY2331: $i] :
              ( ~ ( element @ SY2331 @ ( powerset @ SV25 ) )
              | ~ ( in @ SY2331 @ SV165 )
              | ( in @ ( subset_complement @ SV25 @ SY2331 ) @ SV58 ) ) )
        = $true )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1253]) ).

thf(1300,plain,
    ! [SV165: $i,SV58: $i,SV25: $i] :
      ( ( ( ! [SY2332: $i] :
              ( ~ ( element @ SY2332 @ ( powerset @ SV25 ) )
              | ~ ( in @ ( subset_complement @ SV25 @ SY2332 ) @ SV58 )
              | ( in @ SY2332 @ SV165 ) ) )
        = $true )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1254]) ).

thf(1301,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
        = $false )
      | ( ( ( ( sK27_D @ SV132 @ SV104 @ SV26 )
           != SV26 ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1255]) ).

thf(1302,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
        = $false )
      | ( ( ( ( sK27_D @ SV132 @ SV104 @ SV26 )
           != SV104 ) )
        = $true )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1256]) ).

thf(1303,plain,
    ! [SV133: $i,SV105: $i,SV26: $i,SV205: $i] :
      ( ( ( SV205 = SV26 )
        = $true )
      | ( ( SV205 = SV105 )
        = $true )
      | ( ( in @ SV205 @ SV133 )
        = $false )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1257]) ).

thf(1304,plain,
    ! [SV105: $i,SV133: $i,SV26: $i,SV223: $i] :
      ( ( ( ( SV223 != SV26 )
          | ( in @ SV223 @ SV133 ) )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1258]) ).

thf(1305,plain,
    ! [SV26: $i,SV133: $i,SV105: $i,SV224: $i] :
      ( ( ( ( SV224 != SV105 )
          | ( in @ SV224 @ SV133 ) )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1259]) ).

thf(1306,plain,
    ! [SV29: $i,SV167: $i,SV212: $i] :
      ( ( ( subset @ SV212 @ SV167 )
        = $false )
      | ( ( in @ SV212 @ ( sK5_SY2040 @ SV167 @ SV29 ) )
        = $true )
      | ( ( ~ ( in @ SV167 @ ( sK4_B @ SV29 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1260]) ).

thf(1307,plain,
    ! [SV206: $i,SV29: $i,SV194: $i] :
      ( ( ( in @ SV194 @ ( sK4_B @ SV29 ) )
        = $false )
      | ( ( ~ ( subset @ SV206 @ SV194 ) )
        = $true )
      | ( ( in @ SV206 @ ( sK4_B @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1261]) ).

thf(1308,plain,
    ! [SV213: $i,SV30: $i,SV146: $i] :
      ( ( ( in @ ( sK10_C @ SV146 @ SV30 ) @ SV146 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV213 @ ( sK10_C @ SV146 @ SV30 ) ) @ SV30 )
        = $false )
      | ( ( SV146
          = ( relation_rng @ SV30 ) )
        = $true )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1262]) ).

thf(1309,plain,
    ! [SV147: $i,SV30: $i,SV214: $i,SV225: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV225 @ SV214 ) @ SV30 ) )
        = $true )
      | ( ( in @ SV214 @ SV147 )
        = $true )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1263]) ).

thf(1310,plain,
    ! [SV30: $i,SV147: $i,SV215: $i] :
      ( ( ( in @ SV215 @ SV147 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK9_D @ SV215 @ SV147 @ SV30 ) @ SV215 ) @ SV30 )
        = $true )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1264]) ).

thf(1311,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 )
          | ~ ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1265]) ).

thf(1312,plain,
    ! [SV176: $i,SV148: $i,SV226: $i] :
      ( ( ( ~ ( in @ SV226 @ SV148 )
          | ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV226 ) )
        = $true )
      | ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1266]) ).

thf(1313,plain,
    ! [SV149: $i,SV177: $i,SV227: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV227 @ SV177 @ SV149 ) @ SV149 )
              | ~ ~ ( in @ SV227 @ ( sK31_D @ SV227 @ SV177 @ SV149 ) ) )
          | ( in @ SV227 @ SV177 ) )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1267]) ).

thf(1314,plain,
    ! [SV149: $i,SV177: $i,SV228: $i] :
      ( ( ( ~ ( in @ SV228 @ SV177 )
          | ! [SY2354: $i] :
              ( ~ ( in @ SY2354 @ SV149 )
              | ( in @ SV228 @ SY2354 ) ) )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1268]) ).

thf(1315,plain,
    ! [SV216: $i,SV33: $i,SV152: $i] :
      ( ( ( in @ ( sK17_C @ SV152 @ SV33 ) @ SV152 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK17_C @ SV152 @ SV33 ) @ SV216 ) @ SV33 )
        = $false )
      | ( ( SV152
          = ( relation_dom @ SV33 ) )
        = $true )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1269]) ).

thf(1316,plain,
    ! [SV153: $i,SV33: $i,SV229: $i,SV217: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV217 @ SV229 ) @ SV33 ) )
        = $true )
      | ( ( in @ SV217 @ SV153 )
        = $true )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1270]) ).

thf(1317,plain,
    ! [SV33: $i,SV153: $i,SV218: $i] :
      ( ( ( in @ SV218 @ SV153 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV218 @ ( sK16_D @ SV218 @ SV153 @ SV33 ) ) @ SV33 )
        = $true )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1271]) ).

thf(1318,plain,
    ! [SV207: $i,SV34: $i,SV197: $i] :
      ( ( ( in @ SV197 @ ( sK39_B @ SV34 ) )
        = $false )
      | ( ( ~ ( subset @ SV207 @ SV197 ) )
        = $true )
      | ( ( in @ SV207 @ ( sK39_B @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1272]) ).

thf(1319,plain,
    ! [SV38: $i,SV121: $i,SV139: $i] :
      ( ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV121 )
        = $false )
      | ( ( in @ ( sK12_D @ SV139 @ SV121 @ SV38 ) @ SV139 )
        = $true )
      | ( ( SV139
          = ( set_difference @ SV38 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1275]) ).

thf(1320,plain,
    ! [SV140: $i,SV122: $i,SV38: $i,SV208: $i] :
      ( ( ( in @ SV208 @ SV38 )
        = $false )
      | ( ( in @ SV208 @ SV122 )
        = $true )
      | ( ( in @ SV208 @ SV140 )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1276]) ).

thf(1321,plain,
    ! [SV122: $i,SV38: $i,SV140: $i,SV230: $i] :
      ( ( ( ~ ( in @ SV230 @ SV140 )
          | ( in @ SV230 @ SV38 ) )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1277]) ).

thf(1322,plain,
    ! [SV38: $i,SV122: $i,SV140: $i,SV231: $i] :
      ( ( ( ~ ( in @ SV231 @ SV140 )
          | ~ ( in @ SV231 @ SV122 ) )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1278]) ).

thf(1323,plain,
    ! [SV39: $i,SV123: $i,SV141: $i] :
      ( ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV141 )
        = $false )
      | ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV39 )
        = $false )
      | ( ( in @ ( sK19_D @ SV141 @ SV123 @ SV39 ) @ SV123 )
        = $false )
      | ( ( SV141
          = ( set_intersection2 @ SV39 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1279]) ).

thf(1324,plain,
    ! [SV142: $i,SV124: $i,SV39: $i,SV209: $i] :
      ( ( ( in @ SV209 @ SV39 )
        = $false )
      | ( ( ~ ( in @ SV209 @ SV124 ) )
        = $true )
      | ( ( in @ SV209 @ SV142 )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1282]) ).

thf(1325,plain,
    ! [SV124: $i,SV39: $i,SV142: $i,SV232: $i] :
      ( ( ( ~ ( in @ SV232 @ SV142 )
          | ( in @ SV232 @ SV39 ) )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1283]) ).

thf(1326,plain,
    ! [SV39: $i,SV124: $i,SV142: $i,SV233: $i] :
      ( ( ( ~ ( in @ SV233 @ SV142 )
          | ( in @ SV233 @ SV124 ) )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1284]) ).

thf(1327,plain,
    ! [SV128: $i,SV96: $i,SV210: $i,SV23: $i,SV201: $i] :
      ( ( ( in @ SV201 @ SV23 )
        = $false )
      | ( ( ~ ( in @ SV210 @ SV96 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV128 @ SV96 @ SV23 )
           != ( ordered_pair @ SV201 @ SV210 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1285]) ).

thf(1328,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ~ ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1286]) ).

thf(1329,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ~ ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1286]) ).

thf(1330,plain,
    ! [SV129: $i,SV202: $i,SV97: $i,SV220: $i,SV23: $i,SV219: $i] :
      ( ( ( ~ ( in @ SV219 @ SV23 )
          | ~ ( in @ SV220 @ SV97 ) )
        = $true )
      | ( ( ( SV202
           != ( ordered_pair @ SV219 @ SV220 ) ) )
        = $true )
      | ( ( in @ SV202 @ SV129 )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1287]) ).

thf(1331,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV23 )
                | ~ ( in @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV97 ) ) )
        = $false )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1288]) ).

thf(1332,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( ( SV203
           != ( ordered_pair @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) ) ) )
        = $false )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1288]) ).

thf(1333,plain,
    ! [SV99: $i,SV191: $i,SV71: $i,SV211: $i] :
      ( ( ( in @ SV211 @ SV71 )
        = $false )
      | ( ( in @ SV191 @ SV211 )
        = $false )
      | ( ( in @ SV191 @ SV99 )
        = $true )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1290]) ).

thf(1334,plain,
    ! [SV71: $i,SV99: $i,SV192: $i] :
      ( ( ( in @ SV192 @ ( sK13_D @ SV192 @ SV99 @ SV71 ) )
        = $true )
      | ( ( in @ SV192 @ SV99 )
        = $false )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1291]) ).

thf(1335,plain,
    ! [SV71: $i,SV99: $i,SV192: $i] :
      ( ( ( in @ ( sK13_D @ SV192 @ SV99 @ SV71 ) @ SV71 )
        = $true )
      | ( ( in @ SV192 @ SV99 )
        = $false )
      | ( ( SV99
          = ( union @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1292]) ).

thf(1336,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV24 )
        = $false )
      | ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
        = $false )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1293]) ).

thf(1337,plain,
    ! [SV24: $i,SV100: $i,SV130: $i] :
      ( ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV100 )
        = $false )
      | ( ( in @ ( sK26_D @ SV130 @ SV100 @ SV24 ) @ SV130 )
        = $false )
      | ( ( SV130
          = ( set_union2 @ SV24 @ SV100 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1294]) ).

thf(1338,plain,
    ! [SV101: $i,SV131: $i,SV24: $i,SV221: $i] :
      ( ( ( ~ ( in @ SV221 @ SV24 ) )
        = $true )
      | ( ( in @ SV221 @ SV131 )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1296]) ).

thf(1339,plain,
    ! [SV24: $i,SV131: $i,SV101: $i,SV222: $i] :
      ( ( ( ~ ( in @ SV222 @ SV101 ) )
        = $true )
      | ( ( in @ SV222 @ SV131 )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1297]) ).

thf(1340,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
              | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) )
        = $false )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1298]) ).

thf(1341,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
              | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) ) )
        = $false )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1298]) ).

thf(1342,plain,
    ! [SV58: $i,SV165: $i,SV25: $i,SV234: $i] :
      ( ( ( ~ ( element @ SV234 @ ( powerset @ SV25 ) )
          | ~ ( in @ SV234 @ SV165 )
          | ( in @ ( subset_complement @ SV25 @ SV234 ) @ SV58 ) )
        = $true )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1299]) ).

thf(1343,plain,
    ! [SV165: $i,SV58: $i,SV25: $i,SV235: $i] :
      ( ( ( ~ ( element @ SV235 @ ( powerset @ SV25 ) )
          | ~ ( in @ ( subset_complement @ SV25 @ SV235 ) @ SV58 )
          | ( in @ SV235 @ SV165 ) )
        = $true )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1300]) ).

thf(1344,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ( sK27_D @ SV132 @ SV104 @ SV26 )
          = SV26 )
        = $false )
      | ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
        = $false )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1301]) ).

thf(1345,plain,
    ! [SV26: $i,SV104: $i,SV132: $i] :
      ( ( ( ( sK27_D @ SV132 @ SV104 @ SV26 )
          = SV104 )
        = $false )
      | ( ( in @ ( sK27_D @ SV132 @ SV104 @ SV26 ) @ SV132 )
        = $false )
      | ( ( SV132
          = ( unordered_pair @ SV26 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1302]) ).

thf(1346,plain,
    ! [SV105: $i,SV133: $i,SV26: $i,SV223: $i] :
      ( ( ( ( SV223 != SV26 ) )
        = $true )
      | ( ( in @ SV223 @ SV133 )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1304]) ).

thf(1347,plain,
    ! [SV26: $i,SV133: $i,SV105: $i,SV224: $i] :
      ( ( ( ( SV224 != SV105 ) )
        = $true )
      | ( ( in @ SV224 @ SV133 )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1305]) ).

thf(1348,plain,
    ! [SV212: $i,SV29: $i,SV167: $i] :
      ( ( ( in @ SV167 @ ( sK4_B @ SV29 ) )
        = $false )
      | ( ( in @ SV212 @ ( sK5_SY2040 @ SV167 @ SV29 ) )
        = $true )
      | ( ( subset @ SV212 @ SV167 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1306]) ).

thf(1349,plain,
    ! [SV29: $i,SV194: $i,SV206: $i] :
      ( ( ( subset @ SV206 @ SV194 )
        = $false )
      | ( ( in @ SV194 @ ( sK4_B @ SV29 ) )
        = $false )
      | ( ( in @ SV206 @ ( sK4_B @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1307]) ).

thf(1350,plain,
    ! [SV147: $i,SV30: $i,SV214: $i,SV225: $i] :
      ( ( ( in @ ( ordered_pair @ SV225 @ SV214 ) @ SV30 )
        = $false )
      | ( ( in @ SV214 @ SV147 )
        = $true )
      | ( ( SV147
          = ( relation_rng @ SV30 ) )
        = $false )
      | ( ( relation @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1309]) ).

thf(1351,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 ) )
        = $false )
      | ( ( ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1311]) ).

thf(1352,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1311]) ).

thf(1353,plain,
    ! [SV176: $i,SV148: $i,SV226: $i] :
      ( ( ( ~ ( in @ SV226 @ SV148 ) )
        = $true )
      | ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV226 )
        = $true )
      | ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1312]) ).

thf(1354,plain,
    ! [SV149: $i,SV177: $i,SV227: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV227 @ SV177 @ SV149 ) @ SV149 )
              | ~ ~ ( in @ SV227 @ ( sK31_D @ SV227 @ SV177 @ SV149 ) ) ) )
        = $true )
      | ( ( in @ SV227 @ SV177 )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1313]) ).

thf(1355,plain,
    ! [SV149: $i,SV177: $i,SV228: $i] :
      ( ( ( ~ ( in @ SV228 @ SV177 ) )
        = $true )
      | ( ( ! [SY2354: $i] :
              ( ~ ( in @ SY2354 @ SV149 )
              | ( in @ SV228 @ SY2354 ) ) )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1314]) ).

thf(1356,plain,
    ! [SV153: $i,SV33: $i,SV229: $i,SV217: $i] :
      ( ( ( in @ ( ordered_pair @ SV217 @ SV229 ) @ SV33 )
        = $false )
      | ( ( in @ SV217 @ SV153 )
        = $true )
      | ( ( SV153
          = ( relation_dom @ SV33 ) )
        = $false )
      | ( ( relation @ SV33 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1316]) ).

thf(1357,plain,
    ! [SV34: $i,SV197: $i,SV207: $i] :
      ( ( ( subset @ SV207 @ SV197 )
        = $false )
      | ( ( in @ SV197 @ ( sK39_B @ SV34 ) )
        = $false )
      | ( ( in @ SV207 @ ( sK39_B @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1318]) ).

thf(1358,plain,
    ! [SV122: $i,SV38: $i,SV140: $i,SV230: $i] :
      ( ( ( ~ ( in @ SV230 @ SV140 ) )
        = $true )
      | ( ( in @ SV230 @ SV38 )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1321]) ).

thf(1359,plain,
    ! [SV38: $i,SV122: $i,SV140: $i,SV231: $i] :
      ( ( ( ~ ( in @ SV231 @ SV140 ) )
        = $true )
      | ( ( ~ ( in @ SV231 @ SV122 ) )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1322]) ).

thf(1360,plain,
    ! [SV142: $i,SV39: $i,SV124: $i,SV209: $i] :
      ( ( ( in @ SV209 @ SV124 )
        = $false )
      | ( ( in @ SV209 @ SV39 )
        = $false )
      | ( ( in @ SV209 @ SV142 )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1324]) ).

thf(1361,plain,
    ! [SV124: $i,SV39: $i,SV142: $i,SV232: $i] :
      ( ( ( ~ ( in @ SV232 @ SV142 ) )
        = $true )
      | ( ( in @ SV232 @ SV39 )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1325]) ).

thf(1362,plain,
    ! [SV39: $i,SV124: $i,SV142: $i,SV233: $i] :
      ( ( ( ~ ( in @ SV233 @ SV142 ) )
        = $true )
      | ( ( in @ SV233 @ SV124 )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1326]) ).

thf(1363,plain,
    ! [SV128: $i,SV23: $i,SV201: $i,SV96: $i,SV210: $i] :
      ( ( ( in @ SV210 @ SV96 )
        = $false )
      | ( ( in @ SV201 @ SV23 )
        = $false )
      | ( ( ( ( sK23_D @ SV128 @ SV96 @ SV23 )
           != ( ordered_pair @ SV201 @ SV210 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1327]) ).

thf(1364,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( in @ ( sK24_SY2054 @ SV128 @ SV96 @ SV23 ) @ SV23 )
        = $true )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1328]) ).

thf(1365,plain,
    ! [SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( in @ ( sK25_SY2056 @ SV128 @ SV96 @ SV23 ) @ SV96 )
        = $true )
      | ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1329]) ).

thf(1366,plain,
    ! [SV129: $i,SV202: $i,SV97: $i,SV220: $i,SV23: $i,SV219: $i] :
      ( ( ( ~ ( in @ SV219 @ SV23 ) )
        = $true )
      | ( ( ~ ( in @ SV220 @ SV97 ) )
        = $true )
      | ( ( ( SV202
           != ( ordered_pair @ SV219 @ SV220 ) ) )
        = $true )
      | ( ( in @ SV202 @ SV129 )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1330]) ).

thf(1367,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV23 )
              | ~ ( in @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV97 ) ) )
        = $true )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1331]) ).

thf(1368,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( SV203
          = ( ordered_pair @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) ) )
        = $true )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1332]) ).

thf(1369,plain,
    ! [SV101: $i,SV131: $i,SV24: $i,SV221: $i] :
      ( ( ( in @ SV221 @ SV24 )
        = $false )
      | ( ( in @ SV221 @ SV131 )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1338]) ).

thf(1370,plain,
    ! [SV24: $i,SV131: $i,SV101: $i,SV222: $i] :
      ( ( ( in @ SV222 @ SV101 )
        = $false )
      | ( ( in @ SV222 @ SV131 )
        = $true )
      | ( ( SV131
          = ( set_union2 @ SV24 @ SV101 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1339]) ).

thf(1371,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
          | ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
        = $true )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1340]) ).

thf(1372,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
          | ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
        = $true )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1341]) ).

thf(1373,plain,
    ! [SV58: $i,SV165: $i,SV25: $i,SV234: $i] :
      ( ( ( ~ ( element @ SV234 @ ( powerset @ SV25 ) ) )
        = $true )
      | ( ( ~ ( in @ SV234 @ SV165 )
          | ( in @ ( subset_complement @ SV25 @ SV234 ) @ SV58 ) )
        = $true )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1342]) ).

thf(1374,plain,
    ! [SV165: $i,SV58: $i,SV25: $i,SV235: $i] :
      ( ( ( ~ ( element @ SV235 @ ( powerset @ SV25 ) ) )
        = $true )
      | ( ( ~ ( in @ ( subset_complement @ SV25 @ SV235 ) @ SV58 )
          | ( in @ SV235 @ SV165 ) )
        = $true )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1343]) ).

thf(1375,plain,
    ! [SV105: $i,SV133: $i,SV26: $i,SV223: $i] :
      ( ( ( SV223 = SV26 )
        = $false )
      | ( ( in @ SV223 @ SV133 )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1346]) ).

thf(1376,plain,
    ! [SV26: $i,SV133: $i,SV105: $i,SV224: $i] :
      ( ( ( SV224 = SV105 )
        = $false )
      | ( ( in @ SV224 @ SV133 )
        = $true )
      | ( ( SV133
          = ( unordered_pair @ SV26 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1347]) ).

thf(1377,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 )
        = $true )
      | ( ( ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1351]) ).

thf(1378,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1352]) ).

thf(1379,plain,
    ! [SV176: $i,SV148: $i,SV226: $i] :
      ( ( ( in @ SV226 @ SV148 )
        = $false )
      | ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV226 )
        = $true )
      | ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1353]) ).

thf(1380,plain,
    ! [SV149: $i,SV177: $i,SV227: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV227 @ SV177 @ SV149 ) @ SV149 )
          | ~ ~ ( in @ SV227 @ ( sK31_D @ SV227 @ SV177 @ SV149 ) ) )
        = $false )
      | ( ( in @ SV227 @ SV177 )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1354]) ).

thf(1381,plain,
    ! [SV149: $i,SV177: $i,SV228: $i] :
      ( ( ( in @ SV228 @ SV177 )
        = $false )
      | ( ( ! [SY2354: $i] :
              ( ~ ( in @ SY2354 @ SV149 )
              | ( in @ SV228 @ SY2354 ) ) )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1355]) ).

thf(1382,plain,
    ! [SV122: $i,SV38: $i,SV140: $i,SV230: $i] :
      ( ( ( in @ SV230 @ SV140 )
        = $false )
      | ( ( in @ SV230 @ SV38 )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1358]) ).

thf(1383,plain,
    ! [SV38: $i,SV122: $i,SV140: $i,SV231: $i] :
      ( ( ( in @ SV231 @ SV140 )
        = $false )
      | ( ( ~ ( in @ SV231 @ SV122 ) )
        = $true )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1359]) ).

thf(1384,plain,
    ! [SV124: $i,SV39: $i,SV142: $i,SV232: $i] :
      ( ( ( in @ SV232 @ SV142 )
        = $false )
      | ( ( in @ SV232 @ SV39 )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1361]) ).

thf(1385,plain,
    ! [SV39: $i,SV124: $i,SV142: $i,SV233: $i] :
      ( ( ( in @ SV233 @ SV142 )
        = $false )
      | ( ( in @ SV233 @ SV124 )
        = $true )
      | ( ( SV142
          = ( set_intersection2 @ SV39 @ SV124 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1362]) ).

thf(1386,plain,
    ! [SV210: $i,SV201: $i,SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( ( sK23_D @ SV128 @ SV96 @ SV23 )
          = ( ordered_pair @ SV201 @ SV210 ) )
        = $false )
      | ( ( in @ SV201 @ SV23 )
        = $false )
      | ( ( in @ SV210 @ SV96 )
        = $false )
      | ( ( ~ ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1363]) ).

thf(1387,plain,
    ! [SV129: $i,SV202: $i,SV97: $i,SV220: $i,SV23: $i,SV219: $i] :
      ( ( ( in @ SV219 @ SV23 )
        = $false )
      | ( ( ~ ( in @ SV220 @ SV97 ) )
        = $true )
      | ( ( ( SV202
           != ( ordered_pair @ SV219 @ SV220 ) ) )
        = $true )
      | ( ( in @ SV202 @ SV129 )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1366]) ).

thf(1388,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( ~ ( in @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV23 )
          | ~ ( in @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
        = $false )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1367]) ).

thf(1389,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 ) )
        = $true )
      | ( ( ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
        = $true )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1371]) ).

thf(1390,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
        = $true )
      | ( ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 )
        = $true )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1372]) ).

thf(1391,plain,
    ! [SV58: $i,SV165: $i,SV25: $i,SV234: $i] :
      ( ( ( element @ SV234 @ ( powerset @ SV25 ) )
        = $false )
      | ( ( ~ ( in @ SV234 @ SV165 )
          | ( in @ ( subset_complement @ SV25 @ SV234 ) @ SV58 ) )
        = $true )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1373]) ).

thf(1392,plain,
    ! [SV165: $i,SV58: $i,SV25: $i,SV235: $i] :
      ( ( ( element @ SV235 @ ( powerset @ SV25 ) )
        = $false )
      | ( ( ~ ( in @ ( subset_complement @ SV25 @ SV235 ) @ SV58 )
          | ( in @ SV235 @ SV165 ) )
        = $true )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1374]) ).

thf(1393,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 )
        = $false )
      | ( ( in @ ( sK33_SY2057 @ SV176 @ SV148 ) @ SV148 )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1377]) ).

thf(1394,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) )
        = $false )
      | ( ( ~ ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 ) )
        = $true )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1378]) ).

thf(1395,plain,
    ! [SV149: $i,SV177: $i,SV227: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV227 @ SV177 @ SV149 ) @ SV149 ) )
        = $false )
      | ( ( in @ SV227 @ SV177 )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1380]) ).

thf(1396,plain,
    ! [SV149: $i,SV177: $i,SV227: $i] :
      ( ( ( ~ ~ ( in @ SV227 @ ( sK31_D @ SV227 @ SV177 @ SV149 ) ) )
        = $false )
      | ( ( in @ SV227 @ SV177 )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1380]) ).

thf(1397,plain,
    ! [SV177: $i,SV228: $i,SV149: $i,SV236: $i] :
      ( ( ( ~ ( in @ SV236 @ SV149 )
          | ( in @ SV228 @ SV236 ) )
        = $true )
      | ( ( in @ SV228 @ SV177 )
        = $false )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1381]) ).

thf(1398,plain,
    ! [SV38: $i,SV140: $i,SV122: $i,SV231: $i] :
      ( ( ( in @ SV231 @ SV122 )
        = $false )
      | ( ( in @ SV231 @ SV140 )
        = $false )
      | ( ( SV140
          = ( set_difference @ SV38 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1383]) ).

thf(1399,plain,
    ! [SV201: $i,SV210: $i,SV23: $i,SV96: $i,SV128: $i] :
      ( ( ( in @ ( sK23_D @ SV128 @ SV96 @ SV23 ) @ SV128 )
        = $false )
      | ( ( in @ SV210 @ SV96 )
        = $false )
      | ( ( in @ SV201 @ SV23 )
        = $false )
      | ( ( ( sK23_D @ SV128 @ SV96 @ SV23 )
          = ( ordered_pair @ SV201 @ SV210 ) )
        = $false )
      | ( ( SV128
          = ( cartesian_product2 @ SV23 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1386]) ).

thf(1400,plain,
    ! [SV129: $i,SV202: $i,SV23: $i,SV219: $i,SV97: $i,SV220: $i] :
      ( ( ( in @ SV220 @ SV97 )
        = $false )
      | ( ( in @ SV219 @ SV23 )
        = $false )
      | ( ( ( SV202
           != ( ordered_pair @ SV219 @ SV220 ) ) )
        = $true )
      | ( ( in @ SV202 @ SV129 )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1387]) ).

thf(1401,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( ~ ( in @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV23 ) )
        = $false )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1388]) ).

thf(1402,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( ~ ( in @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV97 ) )
        = $false )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1388]) ).

thf(1403,plain,
    ! [SV25: $i,SV58: $i,SV164: $i] :
      ( ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
        = $false )
      | ( ( ~ ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 ) )
        = $true )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1389]) ).

thf(1404,plain,
    ! [SV58: $i,SV25: $i,SV165: $i,SV234: $i] :
      ( ( ( ~ ( in @ SV234 @ SV165 ) )
        = $true )
      | ( ( in @ ( subset_complement @ SV25 @ SV234 ) @ SV58 )
        = $true )
      | ( ( element @ SV234 @ ( powerset @ SV25 ) )
        = $false )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1391]) ).

thf(1405,plain,
    ! [SV165: $i,SV58: $i,SV235: $i,SV25: $i] :
      ( ( ( ~ ( in @ ( subset_complement @ SV25 @ SV235 ) @ SV58 ) )
        = $true )
      | ( ( in @ SV235 @ SV165 )
        = $true )
      | ( ( element @ SV235 @ ( powerset @ SV25 ) )
        = $false )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1392]) ).

thf(1406,plain,
    ! [SV148: $i,SV176: $i] :
      ( ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ SV176 )
        = $false )
      | ( ( in @ ( sK32_C @ SV176 @ SV148 ) @ ( sK33_SY2057 @ SV176 @ SV148 ) )
        = $false )
      | ( ( SV176
          = ( set_meet @ SV148 ) )
        = $true )
      | ( ( SV148 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1394]) ).

thf(1407,plain,
    ! [SV149: $i,SV177: $i,SV227: $i] :
      ( ( ( in @ ( sK31_D @ SV227 @ SV177 @ SV149 ) @ SV149 )
        = $true )
      | ( ( in @ SV227 @ SV177 )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1395]) ).

thf(1408,plain,
    ! [SV149: $i,SV177: $i,SV227: $i] :
      ( ( ( ~ ( in @ SV227 @ ( sK31_D @ SV227 @ SV177 @ SV149 ) ) )
        = $true )
      | ( ( in @ SV227 @ SV177 )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1396]) ).

thf(1409,plain,
    ! [SV177: $i,SV228: $i,SV149: $i,SV236: $i] :
      ( ( ( ~ ( in @ SV236 @ SV149 ) )
        = $true )
      | ( ( in @ SV228 @ SV236 )
        = $true )
      | ( ( in @ SV228 @ SV177 )
        = $false )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1397]) ).

thf(1410,plain,
    ! [SV129: $i,SV97: $i,SV23: $i,SV220: $i,SV219: $i,SV202: $i] :
      ( ( ( SV202
          = ( ordered_pair @ SV219 @ SV220 ) )
        = $false )
      | ( ( in @ SV219 @ SV23 )
        = $false )
      | ( ( in @ SV220 @ SV97 )
        = $false )
      | ( ( in @ SV202 @ SV129 )
        = $true )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1400]) ).

thf(1411,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( in @ ( sK21_E @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV23 )
        = $true )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1401]) ).

thf(1412,plain,
    ! [SV23: $i,SV97: $i,SV129: $i,SV203: $i] :
      ( ( ( in @ ( sK22_SY2051 @ SV203 @ SV129 @ SV97 @ SV23 ) @ SV97 )
        = $true )
      | ( ( in @ SV203 @ SV129 )
        = $false )
      | ( ( SV129
          = ( cartesian_product2 @ SV23 @ SV97 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1402]) ).

thf(1413,plain,
    ! [SV58: $i,SV164: $i,SV25: $i] :
      ( ( ( in @ ( subset_complement @ SV25 @ ( sK8_D @ SV164 @ SV58 @ SV25 ) ) @ SV58 )
        = $false )
      | ( ( in @ ( sK8_D @ SV164 @ SV58 @ SV25 ) @ SV164 )
        = $false )
      | ( ( SV164
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $true )
      | ( ( element @ SV164 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1403]) ).

thf(1414,plain,
    ! [SV58: $i,SV25: $i,SV165: $i,SV234: $i] :
      ( ( ( in @ SV234 @ SV165 )
        = $false )
      | ( ( in @ ( subset_complement @ SV25 @ SV234 ) @ SV58 )
        = $true )
      | ( ( element @ SV234 @ ( powerset @ SV25 ) )
        = $false )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1404]) ).

thf(1415,plain,
    ! [SV165: $i,SV58: $i,SV235: $i,SV25: $i] :
      ( ( ( in @ ( subset_complement @ SV25 @ SV235 ) @ SV58 )
        = $false )
      | ( ( in @ SV235 @ SV165 )
        = $true )
      | ( ( element @ SV235 @ ( powerset @ SV25 ) )
        = $false )
      | ( ( SV165
          = ( complements_of_subsets @ SV25 @ SV58 ) )
        = $false )
      | ( ( element @ SV165 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false )
      | ( ( element @ SV58 @ ( powerset @ ( powerset @ SV25 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1405]) ).

thf(1416,plain,
    ! [SV149: $i,SV177: $i,SV227: $i] :
      ( ( ( in @ SV227 @ ( sK31_D @ SV227 @ SV177 @ SV149 ) )
        = $false )
      | ( ( in @ SV227 @ SV177 )
        = $true )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1408]) ).

thf(1417,plain,
    ! [SV177: $i,SV228: $i,SV149: $i,SV236: $i] :
      ( ( ( in @ SV236 @ SV149 )
        = $false )
      | ( ( in @ SV228 @ SV236 )
        = $true )
      | ( ( in @ SV228 @ SV177 )
        = $false )
      | ( ( SV177
          = ( set_meet @ SV149 ) )
        = $false )
      | ( ( SV149 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1409]) ).

thf(1418,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[320,1417,1416,1415,1414,1413,1412,1411,1410,1407,1406,1399,1398,1393,1390,1385,1384,1382,1379,1376,1375,1370,1369,1368,1365,1364,1360,1357,1356,1350,1349,1348,1345,1344,1337,1336,1335,1334,1333,1323,1320,1319,1317,1315,1310,1308,1303,1295,1289,1281,1280,1274,1273,1251,1240,1225,1224,1212,1211,1209,1192,1191,1174,1173,1172,1171,1168,1164,1162,1161,1155,1151,1147,1146,1143,1136,1114,1113,1112,1111,1110,1107,1094,1093,1080,1073,1040,1038,1036,1026,1025,1024,1018,1016,991,990,979,976,971,952,939,938,931,930,917,908,907,902,891,871,849,848,827,820,819,807,780,779,777,774,764,761,733,703,700,689,633,630,628,623,562,559,556,555,551,505,504,489,488,482,478,421,376,321]) ).

thf(1419,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[266]) ).

thf(1420,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[265]) ).

thf(1421,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[264]) ).

thf(1422,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)],[263]) ).

thf(1423,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ A ) )
          | ! [C: $i] :
              ( ~ ( in @ C @ B )
              | ( in @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[262]) ).

thf(1424,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)],[261]) ).

thf(1425,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[260]) ).

thf(1426,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)],[259]) ).

thf(1427,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK40_C @ B @ A ) @ A )
            & ~ ( in @ ( sK40_C @ B @ A ) @ B ) )
          | ( element @ A @ ( powerset @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[258]) ).

thf(1428,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)],[257]) ).

thf(1429,plain,
    ( ( ! [A: $i] :
          ( ! [SY2062: $i] :
              ( ~ ( subset @ SY2062 @ ( sK39_B @ A ) )
              | ( are_equipotent @ SY2062 @ ( sK39_B @ A ) )
              | ( in @ SY2062 @ ( sK39_B @ A ) ) )
          & ! [SY2063: $i] :
              ( ~ ( in @ SY2063 @ ( sK39_B @ A ) )
              | ( in @ ( powerset @ SY2063 ) @ ( sK39_B @ A ) ) )
          & ! [SY2064: $i,SY2065: $i] :
              ( ~ ( in @ SY2064 @ ( sK39_B @ A ) )
              | ~ ( subset @ SY2065 @ SY2064 )
              | ( in @ SY2065 @ ( sK39_B @ A ) ) )
          & ( in @ A @ ( sK39_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[256]) ).

thf(1430,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ A @ ( relation_dom @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ~ ( relation @ C )
              | ~ ( in @ ( ordered_pair @ A @ B ) @ C )
              | ( in @ B @ ( relation_rng @ C ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[255]) ).

thf(1431,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( subset @ A @ ( cartesian_product2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[254]) ).

thf(1432,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_dom @ A ) @ ( relation_dom @ B ) ) )
            & ! [B: $i] :
                ( ~ ( relation @ B )
                | ~ ( subset @ A @ B )
                | ( subset @ ( relation_rng @ A ) @ ( relation_rng @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[253]) ).

thf(1433,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)],[252]) ).

thf(1434,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)],[251]) ).

thf(1435,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)],[250]) ).

thf(1436,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK38_C @ B @ A ) @ A )
            & ( in @ ( sK38_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[249]) ).

thf(1437,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[248]) ).

thf(1438,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK37_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)],[247]) ).

thf(1439,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)],[246]) ).

thf(1440,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)],[245]) ).

thf(1441,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)],[244]) ).

thf(1442,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[243]) ).

thf(1443,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[242]) ).

thf(1444,plain,
    ( ( ! [A: $i] :
          ( ( ! [SY2060: $i,SY2061: $i] :
                ( ( sK36_B @ A )
               != ( ordered_pair @ SY2060 @ SY2061 ) )
            & ( in @ ( sK36_B @ A ) @ A ) )
          | ( relation @ A ) )
      & ! [A: $i] :
          ( ~ ( relation @ A )
          | ! [B: $i] :
              ( ( B
                = ( ordered_pair @ ( sK34_C @ B @ A ) @ ( sK35_SY2059 @ B @ A ) ) )
              | ~ ( in @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[241]) ).

thf(1445,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( ( ( ( in @ ( sK33_SY2057 @ B @ A ) @ A )
                    & ~ ( in @ ( sK32_C @ B @ A ) @ ( sK33_SY2057 @ B @ A ) ) )
                  | ~ ( in @ ( sK32_C @ B @ A ) @ B ) )
                & ( ! [SY2058: $i] :
                      ( ~ ( in @ SY2058 @ A )
                      | ( in @ ( sK32_C @ B @ A ) @ SY2058 ) )
                  | ( in @ ( sK32_C @ B @ A ) @ B ) ) )
              | ( B
                = ( set_meet @ A ) ) ) )
      & ! [A: $i] :
          ( ( A = empty_set )
          | ! [B: $i] :
              ( ( B
               != ( set_meet @ A ) )
              | ( ! [C: $i] :
                    ( ( ( in @ ( sK31_D @ C @ B @ A ) @ A )
                      & ~ ( in @ C @ ( sK31_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)],[240]) ).

thf(1446,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK30_C @ B @ A )
               != A )
              | ~ ( in @ ( sK30_C @ B @ A ) @ B ) )
            & ( ( ( sK30_C @ B @ A )
                = A )
              | ( in @ ( sK30_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)],[239]) ).

thf(1447,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK29_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[238]) ).

thf(1448,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK28_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK28_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK28_C @ B @ A ) @ B )
              | ( subset @ ( sK28_C @ B @ A ) @ A ) ) )
          | ( B
            = ( powerset @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( subset @ C @ A ) )
            & ! [C: $i] :
                ( ~ ( subset @ C @ A )
                | ( in @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[237]) ).

thf(1449,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)],[236]) ).

thf(1450,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK27_D @ C @ B @ A ) @ C )
                  | ( ( sK27_D @ C @ B @ A )
                    = A )
                  | ( ( sK27_D @ C @ B @ A )
                    = B ) ) )
              | ( C
                = ( unordered_pair @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( unordered_pair @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( D = A )
                    | ( D = B ) )
                & ! [D: $i] :
                    ( ( D != A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ( D != B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[235]) ).

thf(1451,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK26_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK26_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK26_D @ C @ B @ A ) @ B ) ) )
              | ( C
                = ( set_union2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_union2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A )
                    | ( in @ D @ B ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[234]) ).

thf(1452,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY2052: $i,SY2053: $i] :
                      ( ~ ( in @ SY2052 @ A )
                      | ~ ( in @ SY2053 @ B )
                      | ( ( sK23_D @ C @ B @ A )
                       != ( ordered_pair @ SY2052 @ SY2053 ) ) )
                  | ~ ( in @ ( sK23_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK24_SY2054 @ C @ B @ A ) @ A )
                    & ( in @ ( sK25_SY2056 @ C @ B @ A ) @ B )
                    & ( ( sK23_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK24_SY2054 @ C @ B @ A ) @ ( sK25_SY2056 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK23_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK21_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK22_SY2051 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK21_E @ D @ C @ B @ A ) @ ( sK22_SY2051 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[233]) ).

thf(1453,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK20_C @ B @ A ) @ A )
            & ~ ( in @ ( sK20_C @ B @ A ) @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(1454,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_intersection2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_intersection2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ~ ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[231]) ).

thf(1455,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY2049: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK17_C @ B @ A ) @ SY2049 ) @ A )
                    | ~ ( in @ ( sK17_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK17_C @ B @ A ) @ ( sK18_SY2050 @ B @ A ) ) @ A )
                    | ( in @ ( sK17_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 @ ( sK16_D @ C @ B @ A ) ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[230]) ).

thf(1456,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY2047: $i] :
                  ( ~ ( in @ ( sK14_C @ B @ A ) @ SY2047 )
                  | ~ ( in @ SY2047 @ A ) )
              | ~ ( in @ ( sK14_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK14_C @ B @ A ) @ ( sK15_SY2048 @ B @ A ) )
                & ( in @ ( sK15_SY2048 @ B @ A ) @ A ) )
              | ( in @ ( sK14_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 @ ( sK13_D @ C @ B @ A ) )
                  & ( in @ ( sK13_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[229]) ).

thf(1457,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK12_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)],[228]) ).

thf(1458,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ! [B: $i] :
                ( ( ( ! [SY2045: $i] :
                        ~ ( in @ ( ordered_pair @ SY2045 @ ( sK10_C @ B @ A ) ) @ A )
                    | ~ ( in @ ( sK10_C @ B @ A ) @ B ) )
                  & ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ B @ A ) @ ( sK10_C @ B @ A ) ) @ A )
                    | ( in @ ( sK10_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 @ ( sK9_D @ C @ B @ A ) @ C ) @ A ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[227]) ).

thf(1459,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(1460,plain,
    ( ( ! [A: $i] :
          ( ~ ( relation @ A )
          | ( ( relation_field @ A )
            = ( set_union2 @ ( relation_dom @ A ) @ ( relation_rng @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[226]) ).

thf(1461,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ B @ ( powerset @ ( powerset @ A ) ) )
          | ( ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ ( powerset @ A ) ) )
                | ( ( element @ ( sK8_D @ C @ B @ A ) @ ( powerset @ A ) )
                  & ( ~ ( in @ ( sK8_D @ C @ B @ A ) @ C )
                    | ~ ( in @ ( subset_complement @ A @ ( sK8_D @ C @ B @ A ) ) @ B ) )
                  & ( ( in @ ( sK8_D @ C @ B @ A ) @ C )
                    | ( in @ ( subset_complement @ A @ ( sK8_D @ C @ B @ A ) ) @ B ) ) )
                | ( C
                  = ( complements_of_subsets @ A @ B ) ) )
            & ! [C: $i] :
                ( ~ ( element @ C @ ( powerset @ ( powerset @ A ) ) )
                | ( C
                 != ( complements_of_subsets @ A @ B ) )
                | ( ! [D: $i] :
                      ( ~ ( element @ D @ ( powerset @ A ) )
                      | ~ ( in @ D @ C )
                      | ( in @ ( subset_complement @ A @ D ) @ B ) )
                  & ! [D: $i] :
                      ( ~ ( element @ D @ ( powerset @ A ) )
                      | ~ ( in @ ( subset_complement @ A @ D ) @ B )
                      | ( in @ D @ C ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[225]) ).

thf(1462,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[162]) ).

thf(1463,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( relation @ A )
          | ~ ( relation @ B )
          | ( relation @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[224]) ).

thf(1464,plain,
    ( ( ( empty @ sK7_A )
      & ( relation @ sK7_A ) )
    = $true ),
    inference(copy,[status(thm)],[223]) ).

thf(1465,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[222]) ).

thf(1466,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( element @ A @ B )
          | ( empty @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[221]) ).

thf(1467,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK6_C @ B @ A ) @ A )
              | ~ ( in @ ( sK6_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK6_C @ B @ A ) @ A )
              | ( in @ ( sK6_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[220]) ).

thf(1468,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ( element @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[219]) ).

thf(1469,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( element @ B @ ( powerset @ C ) )
          | ~ ( in @ A @ B )
          | ~ ( empty @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[218]) ).

thf(1470,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[217]) ).

thf(1471,plain,
    ( ( ! [A: $i] :
          ( ! [SY2038: $i] :
              ( ~ ( subset @ SY2038 @ ( sK4_B @ A ) )
              | ( are_equipotent @ SY2038 @ ( sK4_B @ A ) )
              | ( in @ SY2038 @ ( sK4_B @ A ) ) )
          & ! [SY2039: $i] :
              ( ( ! [SY2044: $i] :
                    ( ~ ( subset @ SY2044 @ SY2039 )
                    | ( in @ SY2044 @ ( sK5_SY2040 @ SY2039 @ A ) ) )
                & ( in @ ( sK5_SY2040 @ SY2039 @ A ) @ ( sK4_B @ A ) ) )
              | ~ ( in @ SY2039 @ ( sK4_B @ A ) ) )
          & ! [SY2042: $i,SY2043: $i] :
              ( ~ ( in @ SY2042 @ ( sK4_B @ A ) )
              | ~ ( subset @ SY2043 @ SY2042 )
              | ( in @ SY2043 @ ( sK4_B @ A ) ) )
          & ( in @ A @ ( sK4_B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[216]) ).

thf(1472,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY2035 ) @ sK3_SY2037 )
    = $true ),
    inference(copy,[status(thm)],[210]) ).

thf(1473,plain,
    ( ( relation @ sK3_SY2037 )
    = $true ),
    inference(copy,[status(thm)],[209]) ).

thf(1474,plain,
    ( ( ~ ( in @ sK2_SY2035 @ ( relation_field @ sK3_SY2037 ) ) )
    = $true ),
    inference(copy,[status(thm)],[215]) ).

thf(1475,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK29_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1447]) ).

thf(1476,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)],[1449]) ).

thf(1477,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK30_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK30_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK30_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)],[1446]) ).

thf(1478,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK38_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)],[1436]) ).

thf(1479,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ! [SX2: $i] :
                            ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX2 )
                            | ~ ( in @ SX2 @ SX0 ) )
                        | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( sK15_SY2048 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK15_SY2048 @ SX1 @ SX0 ) @ SX0 ) )
                        | ( in @ ( sK14_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 @ ( sK13_D @ SX2 @ SX1 @ SX0 ) )
                              | ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1456]) ).

thf(1480,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ ( powerset @ SX0 ) ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ~ ( element @ SX2 @ ( powerset @ ( powerset @ SX0 ) ) )
                    | ~ ( ~ ( element @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ ( powerset @ SX0 ) )
                        | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                  | ~ ( in @ ( subset_complement @ SX0 @ ( sK8_D @ SX2 @ SX1 @ SX0 ) ) @ SX1 ) )
                              | ~ ( ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                  | ( in @ ( subset_complement @ SX0 @ ( sK8_D @ SX2 @ SX1 @ SX0 ) ) @ SX1 ) ) ) )
                    | ( SX2
                      = ( complements_of_subsets @ SX0 @ SX1 ) ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( element @ SX2 @ ( powerset @ ( powerset @ SX0 ) ) )
                    | ( SX2
                     != ( complements_of_subsets @ SX0 @ SX1 ) )
                    | ~ ( ~ ! [SX3: $i] :
                              ( ~ ( element @ SX3 @ ( powerset @ SX0 ) )
                              | ~ ( in @ SX3 @ SX2 )
                              | ( in @ ( subset_complement @ SX0 @ SX3 ) @ SX1 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( element @ SX3 @ ( powerset @ SX0 ) )
                              | ~ ( in @ ( subset_complement @ SX0 @ SX3 ) @ SX1 )
                              | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1461]) ).

thf(1481,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK40_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( element @ SX0 @ ( powerset @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1427]) ).

thf(1482,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_intersection2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_intersection2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ~ ( in @ SX3 @ SX1 )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX0 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1454]) ).

thf(1483,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK17_C @ SX1 @ SX0 ) @ SX2 ) @ SX0 )
                            | ~ ( in @ ( sK17_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SX1 @ SX0 ) @ ( sK18_SY2050 @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK17_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 @ ( sK16_D @ SX2 @ SX1 @ SX0 ) ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1455]) ).

thf(1484,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)],[1435]) ).

thf(1485,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
                | ( SX1
                  = ( powerset @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( powerset @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ( subset @ SX2 @ SX0 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( subset @ SX2 @ SX0 )
                          | ( in @ SX2 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1448]) ).

thf(1486,plain,
    ( ( ~ ( ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                                  | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                              | ~ ( ! [SX2: $i] :
                                      ( ~ ( in @ SX2 @ SX0 )
                                      | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                                  | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                          | ( SX1
                            = ( set_meet @ SX0 ) ) ) )
                | ~ ! [SX0: $i] :
                      ( ( SX0 = empty_set )
                      | ! [SX1: $i] :
                          ( ( SX1
                           != ( set_meet @ SX0 ) )
                          | ~ ( ~ ! [SX2: $i] :
                                    ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                        | ~ ~ ( in @ SX2 @ ( sK31_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)],[1445]) ).

thf(1487,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK27_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK27_D @ SX2 @ SX1 @ SX0 )
                            = SX1 ) ) )
                  | ( SX2
                    = ( unordered_pair @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( unordered_pair @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( SX3 = SX0 )
                            | ( SX3 = SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ( SX3 != SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1450]) ).

thf(1488,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)],[1422]) ).

thf(1489,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX0 @ ( relation_dom @ SX2 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( relation @ SX2 )
                  | ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ SX2 )
                  | ( in @ SX1 @ ( relation_rng @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1430]) ).

thf(1490,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)],[1434]) ).

thf(1491,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( ~ ( ! [SX2: $i] :
                                ~ ( in @ ( ordered_pair @ SX2 @ ( sK10_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SX1 @ SX0 ) @ ( sK10_C @ SX1 @ SX0 ) ) @ SX0 )
                            | ( in @ ( sK10_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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1458]) ).

thf(1492,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK6_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK6_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK6_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK6_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1467]) ).

thf(1493,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK4_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK4_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK4_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( ~ ! [SX2: $i] :
                                  ( ~ ( subset @ SX2 @ SX1 )
                                  | ( in @ SX2 @ ( sK5_SY2040 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK5_SY2040 @ SX1 @ SX0 ) @ ( sK4_B @ SX0 ) ) )
                        | ~ ( in @ SX1 @ ( sK4_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK4_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK4_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK4_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1471]) ).

thf(1494,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)],[1428]) ).

thf(1495,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                          ( ( sK36_B @ SX0 )
                         != ( ordered_pair @ SX1 @ SX2 ) )
                    | ~ ( in @ ( sK36_B @ SX0 ) @ SX0 ) )
                | ( relation @ SX0 ) )
          | ~ ! [SX0: $i] :
                ( ~ ( relation @ SX0 )
                | ! [SX1: $i] :
                    ( ( SX1
                      = ( ordered_pair @ ( sK34_C @ SX1 @ SX0 ) @ ( sK35_SY2059 @ SX1 @ SX0 ) ) )
                    | ~ ( in @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1444]) ).

thf(1496,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)],[1441]) ).

thf(1497,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)],[1433]) ).

thf(1498,plain,
    ( ( ~ ( ~ ( empty @ sK7_A )
          | ~ ( relation @ sK7_A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1464]) ).

thf(1499,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ! [SX3: $i,SX4: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX4 @ SX1 )
                              | ( ( sK23_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ SX3 @ SX4 ) ) )
                          | ~ ( in @ ( sK23_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ( in @ ( sK25_SY2056 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                              | ( ( sK23_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ ( sK24_SY2054 @ SX2 @ SX1 @ SX0 ) @ ( sK25_SY2056 @ SX2 @ SX1 @ SX0 ) ) ) )
                          | ( in @ ( sK23_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) )
                  | ( SX2
                    = ( cartesian_product2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( cartesian_product2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ! [SX4: $i,SX5: $i] :
                                ( ~ ( in @ SX4 @ SX0 )
                                | ~ ( in @ SX5 @ SX1 )
                                | ( SX3
                                 != ( ordered_pair @ SX4 @ SX5 ) ) )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ( in @ ( sK22_SY2051 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                                | ( SX3
                                 != ( ordered_pair @ ( sK21_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ ( sK22_SY2051 @ SX3 @ SX2 @ SX1 @ SX0 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1452]) ).

thf(1500,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK26_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                  | ( SX2
                    = ( set_union2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_union2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1451]) ).

thf(1501,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i] :
                  ( ~ ( subset @ SX1 @ ( sK39_B @ SX0 ) )
                  | ( are_equipotent @ SX1 @ ( sK39_B @ SX0 ) )
                  | ( in @ SX1 @ ( sK39_B @ SX0 ) ) )
            | ~ ~ ( ~ ! [SX1: $i] :
                        ( ~ ( in @ SX1 @ ( sK39_B @ SX0 ) )
                        | ( in @ ( powerset @ SX1 ) @ ( sK39_B @ SX0 ) ) )
                  | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                              ( ~ ( in @ SX1 @ ( sK39_B @ SX0 ) )
                              | ~ ( subset @ SX2 @ SX1 )
                              | ( in @ SX2 @ ( sK39_B @ SX0 ) ) )
                        | ~ ( in @ SX0 @ ( sK39_B @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1429]) ).

thf(1502,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ~ ( ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( subset @ SX0 @ SX1 )
                    | ( subset @ ( relation_dom @ SX0 ) @ ( relation_dom @ SX1 ) ) )
              | ~ ! [SX1: $i] :
                    ( ~ ( relation @ SX1 )
                    | ~ ( subset @ SX0 @ SX1 )
                    | ( subset @ ( relation_rng @ SX0 ) @ ( relation_rng @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1432]) ).

thf(1503,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)],[1426]) ).

thf(1504,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK37_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)],[1438]) ).

thf(1505,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1453]) ).

thf(1506,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK12_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)],[1457]) ).

thf(1507,plain,
    ! [SV237: $i] :
      ( ( ! [SY2355: $i] :
            ( ~ ( in @ SV237 @ SY2355 )
            | ( ( set_union2 @ ( singleton @ SV237 ) @ SY2355 )
              = SY2355 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1419]) ).

thf(1508,plain,
    ! [SV238: $i] :
      ( ( ! [SY2356: $i] :
            ( ~ ( disjoint @ ( singleton @ SV238 ) @ SY2356 )
            | ~ ( in @ SV238 @ SY2356 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1420]) ).

thf(1509,plain,
    ! [SV239: $i] :
      ( ( ! [SY2357: $i] :
            ( ( in @ SV239 @ SY2357 )
            | ( disjoint @ ( singleton @ SV239 ) @ SY2357 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1421]) ).

thf(1510,plain,
    ! [SV240: $i] :
      ( ( ! [SY2358: $i] :
            ( ~ ( element @ SY2358 @ ( powerset @ SV240 ) )
            | ! [SY2359: $i] :
                ( ~ ( in @ SY2359 @ SY2358 )
                | ( in @ SY2359 @ SV240 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1423]) ).

thf(1511,plain,
    ! [SV241: $i] :
      ( ( ! [SY2360: $i] :
            ( ~ ( subset @ SV241 @ SY2360 )
            | ! [SY2361: $i] :
                ( ( in @ SY2361 @ SV241 )
                | ( subset @ SV241 @ ( set_difference @ SY2360 @ ( singleton @ SY2361 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1424]) ).

thf(1512,plain,
    ! [SV242: $i] :
      ( ( ! [SY2362: $i] :
            ( ~ ( in @ SV242 @ SY2362 )
            | ( subset @ SV242 @ ( union @ SY2362 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1425]) ).

thf(1513,plain,
    ! [SV243: $i] :
      ( ( ~ ( relation @ SV243 )
        | ( subset @ SV243 @ ( cartesian_product2 @ ( relation_dom @ SV243 ) @ ( relation_rng @ SV243 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1431]) ).

thf(1514,plain,
    ! [SV244: $i] :
      ( ( ! [SY2363: $i] :
            ( ~ ( in @ SV244 @ SY2363 )
            | ( ( set_union2 @ ( singleton @ SV244 ) @ SY2363 )
              = SY2363 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1437]) ).

thf(1515,plain,
    ! [SV245: $i] :
      ( ( ( SV245 = empty_set )
        | ! [SY2364: $i] :
            ( ~ ( element @ SY2364 @ ( powerset @ SV245 ) )
            | ! [SY2365: $i] :
                ( ~ ( element @ SY2365 @ SV245 )
                | ( in @ SY2365 @ SY2364 )
                | ( in @ SY2365 @ ( subset_complement @ SV245 @ SY2364 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1439]) ).

thf(1516,plain,
    ! [SV246: $i] :
      ( ( ! [SY2366: $i,SY2367: $i] :
            ( ~ ( element @ SY2367 @ ( powerset @ SV246 ) )
            | ~ ( in @ SY2366 @ ( subset_complement @ SV246 @ SY2367 ) )
            | ~ ( in @ SY2366 @ SY2367 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1440]) ).

thf(1517,plain,
    ! [SV247: $i] :
      ( ( ! [SY2368: $i] :
            ( ~ ( in @ SV247 @ SY2368 )
            | ( subset @ SV247 @ ( union @ SY2368 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1442]) ).

thf(1518,plain,
    ! [SV248: $i] :
      ( ( ! [SY2369: $i] :
            ( ~ ( in @ SV248 @ SY2369 )
            | ~ ( in @ SY2369 @ SV248 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1443]) ).

thf(1519,plain,
    ! [SV249: $i] :
      ( ( ! [SY2370: $i] :
            ( ( ordered_pair @ SV249 @ SY2370 )
            = ( unordered_pair @ ( unordered_pair @ SV249 @ SY2370 ) @ ( singleton @ SV249 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1459]) ).

thf(1520,plain,
    ! [SV250: $i] :
      ( ( ~ ( relation @ SV250 )
        | ( ( relation_field @ SV250 )
          = ( set_union2 @ ( relation_dom @ SV250 ) @ ( relation_rng @ SV250 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1460]) ).

thf(1521,plain,
    ! [SV251: $i] :
      ( ( ! [SY2371: $i] :
            ~ ( empty @ ( ordered_pair @ SV251 @ SY2371 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1462]) ).

thf(1522,plain,
    ! [SV252: $i] :
      ( ( ! [SY2372: $i] :
            ( ~ ( relation @ SV252 )
            | ~ ( relation @ SY2372 )
            | ( relation @ ( set_union2 @ SV252 @ SY2372 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1463]) ).

thf(1523,plain,
    ! [SV253: $i] :
      ( ( ! [SY2373: $i] :
            ( ~ ( in @ SV253 @ SY2373 )
            | ( element @ SV253 @ SY2373 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1465]) ).

thf(1524,plain,
    ! [SV254: $i] :
      ( ( ! [SY2374: $i] :
            ( ~ ( element @ SV254 @ SY2374 )
            | ( empty @ SY2374 )
            | ( in @ SV254 @ SY2374 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1466]) ).

thf(1525,plain,
    ! [SV255: $i] :
      ( ( ! [SY2375: $i,SY2376: $i] :
            ( ~ ( element @ SY2375 @ ( powerset @ SY2376 ) )
            | ~ ( in @ SV255 @ SY2375 )
            | ( element @ SV255 @ SY2376 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1468]) ).

thf(1526,plain,
    ! [SV256: $i] :
      ( ( ! [SY2377: $i,SY2378: $i] :
            ( ~ ( element @ SY2377 @ ( powerset @ SY2378 ) )
            | ~ ( in @ SV256 @ SY2377 )
            | ~ ( empty @ SY2378 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1469]) ).

thf(1527,plain,
    ! [SV257: $i] :
      ( ( ! [SY2379: $i] :
            ( ~ ( empty @ SY2379 )
            | ~ ( in @ SV257 @ SY2379 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1470]) ).

thf(1528,plain,
    ( ( in @ sK2_SY2035 @ ( relation_field @ sK3_SY2037 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1474]) ).

thf(1529,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK29_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1475]) ).

thf(1530,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)],[1476]) ).

thf(1531,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK30_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK30_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK30_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)],[1477]) ).

thf(1532,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK38_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)],[1478]) ).

thf(1533,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( sK15_SY2048 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK15_SY2048 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK14_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 @ ( sK13_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1479]) ).

thf(1534,plain,
    ! [SV258: $i] :
      ( ( ! [SY2380: $i] :
            ( ~ ( element @ SY2380 @ ( powerset @ ( powerset @ SV258 ) ) )
            | ~ ( ~ ! [SY2381: $i] :
                      ( ~ ( element @ SY2381 @ ( powerset @ ( powerset @ SV258 ) ) )
                      | ~ ( ~ ( element @ ( sK8_D @ SY2381 @ SY2380 @ SV258 ) @ ( powerset @ SV258 ) )
                          | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2381 @ SY2380 @ SV258 ) @ SY2381 )
                                    | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2381 @ SY2380 @ SV258 ) ) @ SY2380 ) )
                                | ~ ( ( in @ ( sK8_D @ SY2381 @ SY2380 @ SV258 ) @ SY2381 )
                                    | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2381 @ SY2380 @ SV258 ) ) @ SY2380 ) ) ) )
                      | ( SY2381
                        = ( complements_of_subsets @ SV258 @ SY2380 ) ) )
                | ~ ! [SY2382: $i] :
                      ( ~ ( element @ SY2382 @ ( powerset @ ( powerset @ SV258 ) ) )
                      | ( SY2382
                       != ( complements_of_subsets @ SV258 @ SY2380 ) )
                      | ~ ( ~ ! [SY2383: $i] :
                                ( ~ ( element @ SY2383 @ ( powerset @ SV258 ) )
                                | ~ ( in @ SY2383 @ SY2382 )
                                | ( in @ ( subset_complement @ SV258 @ SY2383 ) @ SY2380 ) )
                          | ~ ! [SY2384: $i] :
                                ( ~ ( element @ SY2384 @ ( powerset @ SV258 ) )
                                | ~ ( in @ ( subset_complement @ SV258 @ SY2384 ) @ SY2380 )
                                | ( in @ SY2384 @ SY2382 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1480]) ).

thf(1535,plain,
    ! [SV259: $i] :
      ( ( ! [SY2385: $i] :
            ( ~ ( ~ ( in @ ( sK40_C @ SY2385 @ SV259 ) @ SV259 )
                | ~ ~ ( in @ ( sK40_C @ SY2385 @ SV259 ) @ SY2385 ) )
            | ( element @ SV259 @ ( powerset @ SY2385 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1481]) ).

thf(1536,plain,
    ! [SV260: $i] :
      ( ( ~ ( ~ ! [SY2386: $i,SY2387: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SV260 )
                          | ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2386 )
                          | ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SV260 )
                                | ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) )
                            | ~ ( ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2386 )
                                | ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) ) ) )
                  | ( SY2387
                    = ( set_intersection2 @ SV260 @ SY2386 ) ) )
            | ~ ! [SY2388: $i,SY2389: $i] :
                  ( ( SY2389
                   != ( set_intersection2 @ SV260 @ SY2388 ) )
                  | ~ ( ~ ! [SY2390: $i] :
                            ( ~ ( in @ SY2390 @ SV260 )
                            | ~ ( in @ SY2390 @ SY2388 )
                            | ( in @ SY2390 @ SY2389 ) )
                      | ~ ~ ( ~ ! [SY2391: $i] :
                                  ( ~ ( in @ SY2391 @ SY2389 )
                                  | ( in @ SY2391 @ SV260 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY2389 )
                                  | ( in @ SX3 @ SY2388 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1482]) ).

thf(1537,plain,
    ! [SV261: $i] :
      ( ( ~ ( relation @ SV261 )
        | ~ ( ~ ! [SY2393: $i] :
                  ( ~ ( ~ ( ! [SY2394: $i] :
                              ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ SY2394 ) @ SV261 )
                          | ~ ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ ( sK18_SY2050 @ SY2393 @ SV261 ) ) @ SV261 )
                          | ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) ) )
                  | ( SY2393
                    = ( relation_dom @ SV261 ) ) )
            | ~ ! [SY2395: $i] :
                  ( ( SY2395
                   != ( relation_dom @ SV261 ) )
                  | ~ ( ~ ! [SY2396: $i] :
                            ( ! [SY2397: $i] :
                                ~ ( in @ ( ordered_pair @ SY2396 @ SY2397 ) @ SV261 )
                            | ( in @ SY2396 @ SY2395 ) )
                      | ~ ! [SY2398: $i] :
                            ( ~ ( in @ SY2398 @ SY2395 )
                            | ( in @ ( ordered_pair @ SY2398 @ ( sK16_D @ SY2398 @ SY2395 @ SV261 ) ) @ SV261 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1483]) ).

thf(1538,plain,
    ! [SV262: $i] :
      ( ( ~ ( ~ ! [SY2399: $i,SY2400: $i] :
                  ( ~ ( in @ SV262 @ SY2400 )
                  | ~ ( in @ SY2399 @ SY2400 )
                  | ( subset @ ( unordered_pair @ SV262 @ SY2399 ) @ SY2400 ) )
            | ~ ~ ( ~ ! [SY2401: $i,SY2402: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2401 ) @ SY2402 )
                        | ( in @ SV262 @ SY2402 ) )
                  | ~ ! [SY2403: $i,SY2404: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2403 ) @ SY2404 )
                        | ( in @ SY2403 @ SY2404 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1484]) ).

thf(1539,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( powerset @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( subset @ SX2 @ SX0 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( subset @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1485]) ).

thf(1540,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK31_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)],[1486]) ).

thf(1541,plain,
    ! [SV263: $i] :
      ( ( ~ ( ~ ! [SY2405: $i,SY2406: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                                | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                                 != SV263 ) )
                            | ~ ( ~ ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                                | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                                 != SY2405 ) ) )
                      | ~ ( ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                          | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                            = SV263 )
                          | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                            = SY2405 ) ) )
                  | ( SY2406
                    = ( unordered_pair @ SV263 @ SY2405 ) ) )
            | ~ ! [SY2407: $i,SY2408: $i] :
                  ( ( SY2408
                   != ( unordered_pair @ SV263 @ SY2407 ) )
                  | ~ ( ~ ! [SY2409: $i] :
                            ( ~ ( in @ SY2409 @ SY2408 )
                            | ( SY2409 = SV263 )
                            | ( SY2409 = SY2407 ) )
                      | ~ ~ ( ~ ! [SY2410: $i] :
                                  ( ( SY2410 != SV263 )
                                  | ( in @ SY2410 @ SY2408 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY2407 )
                                  | ( in @ SX3 @ SY2408 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1487]) ).

thf(1542,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)],[1488]) ).

thf(1543,plain,
    ! [SV264: $i] :
      ( ( ~ ( ~ ! [SY2412: $i,SY2413: $i] :
                  ( ~ ( relation @ SY2413 )
                  | ~ ( in @ ( ordered_pair @ SV264 @ SY2412 ) @ SY2413 )
                  | ( in @ SV264 @ ( relation_dom @ SY2413 ) ) )
            | ~ ! [SY2414: $i,SY2415: $i] :
                  ( ~ ( relation @ SY2415 )
                  | ~ ( in @ ( ordered_pair @ SV264 @ SY2414 ) @ SY2415 )
                  | ( in @ SY2414 @ ( relation_rng @ SY2415 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1489]) ).

thf(1544,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)],[1490]) ).

thf(1545,plain,
    ! [SV265: $i] :
      ( ( ~ ( relation @ SV265 )
        | ~ ( ~ ! [SY2416: $i] :
                  ( ~ ( ~ ( ! [SY2417: $i] :
                              ~ ( in @ ( ordered_pair @ SY2417 @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                          | ~ ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) )
                      | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2416 @ SV265 ) @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                          | ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) ) )
                  | ( SY2416
                    = ( relation_rng @ SV265 ) ) )
            | ~ ! [SY2418: $i] :
                  ( ( SY2418
                   != ( relation_rng @ SV265 ) )
                  | ~ ( ~ ! [SY2419: $i] :
                            ( ! [SY2420: $i] :
                                ~ ( in @ ( ordered_pair @ SY2420 @ SY2419 ) @ SV265 )
                            | ( in @ SY2419 @ SY2418 ) )
                      | ~ ! [SY2421: $i] :
                            ( ~ ( in @ SY2421 @ SY2418 )
                            | ( in @ ( ordered_pair @ ( sK9_D @ SY2421 @ SY2418 @ SV265 ) @ SY2421 ) @ SV265 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1491]) ).

thf(1546,plain,
    ! [SV266: $i] :
      ( ( ! [SY2422: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_C @ SY2422 @ SV266 ) @ SV266 )
                    | ~ ( in @ ( sK6_C @ SY2422 @ SV266 ) @ SY2422 ) )
                | ~ ( ( in @ ( sK6_C @ SY2422 @ SV266 ) @ SV266 )
                    | ( in @ ( sK6_C @ SY2422 @ SV266 ) @ SY2422 ) ) )
            | ( SV266 = SY2422 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1492]) ).

thf(1547,plain,
    ! [SV267: $i] :
      ( ( ~ ( ~ ! [SY2423: $i] :
                  ( ~ ( subset @ SY2423 @ ( sK4_B @ SV267 ) )
                  | ( are_equipotent @ SY2423 @ ( sK4_B @ SV267 ) )
                  | ( in @ SY2423 @ ( sK4_B @ SV267 ) ) )
            | ~ ~ ( ~ ! [SY2424: $i] :
                        ( ~ ( ~ ! [SY2425: $i] :
                                  ( ~ ( subset @ SY2425 @ SY2424 )
                                  | ( in @ SY2425 @ ( sK5_SY2040 @ SY2424 @ SV267 ) ) )
                            | ~ ( in @ ( sK5_SY2040 @ SY2424 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
                        | ~ ( in @ SY2424 @ ( sK4_B @ SV267 ) ) )
                  | ~ ~ ( ~ ! [SY2426: $i,SY2427: $i] :
                              ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
                              | ~ ( subset @ SY2427 @ SY2426 )
                              | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) )
                        | ~ ( in @ SV267 @ ( sK4_B @ SV267 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1493]) ).

thf(1548,plain,
    ! [SV268: $i] :
      ( ( ! [SY2428: $i] :
            ~ ( ~ ! [SY2429: $i,SY2430: $i] :
                    ( ~ ( in @ SV268 @ SY2429 )
                    | ~ ( in @ SY2428 @ SY2430 )
                    | ( in @ ( ordered_pair @ SV268 @ SY2428 ) @ ( cartesian_product2 @ SY2429 @ SY2430 ) ) )
              | ~ ~ ( ~ ! [SY2431: $i] :
                          ( ! [SY2432: $i] :
                              ~ ( in @ ( ordered_pair @ SV268 @ SY2428 ) @ ( cartesian_product2 @ SY2431 @ SY2432 ) )
                          | ( in @ SV268 @ SY2431 ) )
                    | ~ ! [SY2433: $i,SY2434: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV268 @ SY2428 ) @ ( cartesian_product2 @ SY2433 @ SY2434 ) )
                          | ( in @ SY2428 @ SY2434 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1494]) ).

thf(1549,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK36_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK36_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) )
      | ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK34_C @ SX1 @ SX0 ) @ ( sK35_SY2059 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1495]) ).

thf(1550,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)],[1496]) ).

thf(1551,plain,
    ! [SV269: $i] :
      ( ( ! [SY2435: $i] :
            ~ ( ~ ! [SY2436: $i] :
                    ( ! [SY2437: $i] :
                        ( ( ordered_pair @ SV269 @ SY2435 )
                       != ( ordered_pair @ SY2436 @ SY2437 ) )
                    | ( SV269 = SY2436 ) )
              | ~ ! [SY2438: $i,SY2439: $i] :
                    ( ( ( ordered_pair @ SV269 @ SY2435 )
                     != ( ordered_pair @ SY2438 @ SY2439 ) )
                    | ( SY2435 = SY2439 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1497]) ).

thf(1552,plain,
    ( ( ~ ( empty @ sK7_A )
      | ~ ( relation @ sK7_A ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1498]) ).

thf(1553,plain,
    ! [SV270: $i] :
      ( ( ~ ( ~ ! [SY2440: $i,SY2441: $i] :
                  ( ~ ( ~ ( ! [SY2442: $i,SY2443: $i] :
                              ( ~ ( in @ SY2442 @ SV270 )
                              | ~ ( in @ SY2443 @ SY2440 )
                              | ( ( sK23_D @ SY2441 @ SY2440 @ SV270 )
                               != ( ordered_pair @ SY2442 @ SY2443 ) ) )
                          | ~ ( in @ ( sK23_D @ SY2441 @ SY2440 @ SV270 ) @ SY2441 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2441 @ SY2440 @ SV270 ) @ SV270 )
                                    | ~ ( in @ ( sK25_SY2056 @ SY2441 @ SY2440 @ SV270 ) @ SY2440 ) )
                              | ( ( sK23_D @ SY2441 @ SY2440 @ SV270 )
                               != ( ordered_pair @ ( sK24_SY2054 @ SY2441 @ SY2440 @ SV270 ) @ ( sK25_SY2056 @ SY2441 @ SY2440 @ SV270 ) ) ) )
                          | ( in @ ( sK23_D @ SY2441 @ SY2440 @ SV270 ) @ SY2441 ) ) )
                  | ( SY2441
                    = ( cartesian_product2 @ SV270 @ SY2440 ) ) )
            | ~ ! [SY2444: $i,SY2445: $i] :
                  ( ( SY2445
                   != ( cartesian_product2 @ SV270 @ SY2444 ) )
                  | ~ ( ~ ! [SY2446: $i] :
                            ( ! [SY2447: $i,SY2448: $i] :
                                ( ~ ( in @ SY2447 @ SV270 )
                                | ~ ( in @ SY2448 @ SY2444 )
                                | ( SY2446
                                 != ( ordered_pair @ SY2447 @ SY2448 ) ) )
                            | ( in @ SY2446 @ SY2445 ) )
                      | ~ ! [SY2449: $i] :
                            ( ~ ( in @ SY2449 @ SY2445 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ SV270 )
                                      | ~ ( in @ ( sK22_SY2051 @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ SY2444 ) )
                                | ( SY2449
                                 != ( ordered_pair @ ( sK21_E @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ ( sK22_SY2051 @ SY2449 @ SY2445 @ SY2444 @ SV270 ) ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1499]) ).

thf(1554,plain,
    ! [SV271: $i] :
      ( ( ~ ( ~ ! [SY2450: $i,SY2451: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                                | ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SV271 ) )
                            | ~ ( ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                                | ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2450 ) ) )
                      | ~ ( ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                          | ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SV271 )
                          | ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2450 ) ) )
                  | ( SY2451
                    = ( set_union2 @ SV271 @ SY2450 ) ) )
            | ~ ! [SY2452: $i,SY2453: $i] :
                  ( ( SY2453
                   != ( set_union2 @ SV271 @ SY2452 ) )
                  | ~ ( ~ ! [SY2454: $i] :
                            ( ~ ( in @ SY2454 @ SY2453 )
                            | ( in @ SY2454 @ SV271 )
                            | ( in @ SY2454 @ SY2452 ) )
                      | ~ ~ ( ~ ! [SY2455: $i] :
                                  ( ~ ( in @ SY2455 @ SV271 )
                                  | ( in @ SY2455 @ SY2453 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY2452 )
                                  | ( in @ SX3 @ SY2453 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1500]) ).

thf(1555,plain,
    ! [SV272: $i] :
      ( ( ~ ( ~ ! [SY2457: $i] :
                  ( ~ ( subset @ SY2457 @ ( sK39_B @ SV272 ) )
                  | ( are_equipotent @ SY2457 @ ( sK39_B @ SV272 ) )
                  | ( in @ SY2457 @ ( sK39_B @ SV272 ) ) )
            | ~ ~ ( ~ ! [SY2458: $i] :
                        ( ~ ( in @ SY2458 @ ( sK39_B @ SV272 ) )
                        | ( in @ ( powerset @ SY2458 ) @ ( sK39_B @ SV272 ) ) )
                  | ~ ~ ( ~ ! [SY2459: $i,SY2460: $i] :
                              ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
                              | ~ ( subset @ SY2460 @ SY2459 )
                              | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) )
                        | ~ ( in @ SV272 @ ( sK39_B @ SV272 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1501]) ).

thf(1556,plain,
    ! [SV273: $i] :
      ( ( ~ ( relation @ SV273 )
        | ~ ( ~ ! [SY2461: $i] :
                  ( ~ ( relation @ SY2461 )
                  | ~ ( subset @ SV273 @ SY2461 )
                  | ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SY2461 ) ) )
            | ~ ! [SY2462: $i] :
                  ( ~ ( relation @ SY2462 )
                  | ~ ( subset @ SV273 @ SY2462 )
                  | ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SY2462 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1502]) ).

thf(1557,plain,
    ! [SV274: $i] :
      ( ( ! [SY2463: $i] :
            ~ ( ~ ! [SY2464: $i,SY2465: $i] :
                    ( ~ ( in @ SV274 @ SY2464 )
                    | ~ ( in @ SY2463 @ SY2465 )
                    | ( in @ ( ordered_pair @ SV274 @ SY2463 ) @ ( cartesian_product2 @ SY2464 @ SY2465 ) ) )
              | ~ ~ ( ~ ! [SY2466: $i] :
                          ( ! [SY2467: $i] :
                              ~ ( in @ ( ordered_pair @ SV274 @ SY2463 ) @ ( cartesian_product2 @ SY2466 @ SY2467 ) )
                          | ( in @ SV274 @ SY2466 ) )
                    | ~ ! [SY2468: $i,SY2469: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV274 @ SY2463 ) @ ( cartesian_product2 @ SY2468 @ SY2469 ) )
                          | ( in @ SY2463 @ SY2469 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1503]) ).

thf(1558,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK37_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)],[1504]) ).

thf(1559,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1505]) ).

thf(1560,plain,
    ! [SV275: $i] :
      ( ( ~ ( ~ ! [SY2470: $i,SY2471: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SV275 )
                          | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2470 )
                          | ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SV275 )
                                | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) )
                            | ~ ( ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2470 )
                                | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) ) ) )
                  | ( SY2471
                    = ( set_difference @ SV275 @ SY2470 ) ) )
            | ~ ! [SY2472: $i,SY2473: $i] :
                  ( ( SY2473
                   != ( set_difference @ SV275 @ SY2472 ) )
                  | ~ ( ~ ! [SY2474: $i] :
                            ( ~ ( in @ SY2474 @ SV275 )
                            | ( in @ SY2474 @ SY2472 )
                            | ( in @ SY2474 @ SY2473 ) )
                      | ~ ~ ( ~ ! [SY2475: $i] :
                                  ( ~ ( in @ SY2475 @ SY2473 )
                                  | ( in @ SY2475 @ SV275 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY2473 )
                                  | ~ ( in @ SX3 @ SY2472 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1506]) ).

thf(1561,plain,
    ! [SV276: $i,SV237: $i] :
      ( ( ~ ( in @ SV237 @ SV276 )
        | ( ( set_union2 @ ( singleton @ SV237 ) @ SV276 )
          = SV276 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1507]) ).

thf(1562,plain,
    ! [SV277: $i,SV238: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV238 ) @ SV277 )
        | ~ ( in @ SV238 @ SV277 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1508]) ).

thf(1563,plain,
    ! [SV278: $i,SV239: $i] :
      ( ( ( in @ SV239 @ SV278 )
        | ( disjoint @ ( singleton @ SV239 ) @ SV278 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1509]) ).

thf(1564,plain,
    ! [SV240: $i,SV279: $i] :
      ( ( ~ ( element @ SV279 @ ( powerset @ SV240 ) )
        | ! [SY2477: $i] :
            ( ~ ( in @ SY2477 @ SV279 )
            | ( in @ SY2477 @ SV240 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1510]) ).

thf(1565,plain,
    ! [SV280: $i,SV241: $i] :
      ( ( ~ ( subset @ SV241 @ SV280 )
        | ! [SY2478: $i] :
            ( ( in @ SY2478 @ SV241 )
            | ( subset @ SV241 @ ( set_difference @ SV280 @ ( singleton @ SY2478 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1511]) ).

thf(1566,plain,
    ! [SV281: $i,SV242: $i] :
      ( ( ~ ( in @ SV242 @ SV281 )
        | ( subset @ SV242 @ ( union @ SV281 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1512]) ).

thf(1567,plain,
    ! [SV243: $i] :
      ( ( ( ~ ( relation @ SV243 ) )
        = $true )
      | ( ( subset @ SV243 @ ( cartesian_product2 @ ( relation_dom @ SV243 ) @ ( relation_rng @ SV243 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1513]) ).

thf(1568,plain,
    ! [SV282: $i,SV244: $i] :
      ( ( ~ ( in @ SV244 @ SV282 )
        | ( ( set_union2 @ ( singleton @ SV244 ) @ SV282 )
          = SV282 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1514]) ).

thf(1569,plain,
    ! [SV245: $i] :
      ( ( ( SV245 = empty_set )
        = $true )
      | ( ( ! [SY2364: $i] :
              ( ~ ( element @ SY2364 @ ( powerset @ SV245 ) )
              | ! [SY2365: $i] :
                  ( ~ ( element @ SY2365 @ SV245 )
                  | ( in @ SY2365 @ SY2364 )
                  | ( in @ SY2365 @ ( subset_complement @ SV245 @ SY2364 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1515]) ).

thf(1570,plain,
    ! [SV283: $i,SV246: $i] :
      ( ( ! [SY2479: $i] :
            ( ~ ( element @ SY2479 @ ( powerset @ SV246 ) )
            | ~ ( in @ SV283 @ ( subset_complement @ SV246 @ SY2479 ) )
            | ~ ( in @ SV283 @ SY2479 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1516]) ).

thf(1571,plain,
    ! [SV284: $i,SV247: $i] :
      ( ( ~ ( in @ SV247 @ SV284 )
        | ( subset @ SV247 @ ( union @ SV284 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1517]) ).

thf(1572,plain,
    ! [SV285: $i,SV248: $i] :
      ( ( ~ ( in @ SV248 @ SV285 )
        | ~ ( in @ SV285 @ SV248 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1518]) ).

thf(1573,plain,
    ! [SV286: $i,SV249: $i] :
      ( ( ( ordered_pair @ SV249 @ SV286 )
        = ( unordered_pair @ ( unordered_pair @ SV249 @ SV286 ) @ ( singleton @ SV249 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1519]) ).

thf(1574,plain,
    ! [SV250: $i] :
      ( ( ( ~ ( relation @ SV250 ) )
        = $true )
      | ( ( ( relation_field @ SV250 )
          = ( set_union2 @ ( relation_dom @ SV250 ) @ ( relation_rng @ SV250 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1520]) ).

thf(1575,plain,
    ! [SV287: $i,SV251: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV251 @ SV287 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1521]) ).

thf(1576,plain,
    ! [SV288: $i,SV252: $i] :
      ( ( ~ ( relation @ SV252 )
        | ~ ( relation @ SV288 )
        | ( relation @ ( set_union2 @ SV252 @ SV288 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1522]) ).

thf(1577,plain,
    ! [SV289: $i,SV253: $i] :
      ( ( ~ ( in @ SV253 @ SV289 )
        | ( element @ SV253 @ SV289 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1523]) ).

thf(1578,plain,
    ! [SV290: $i,SV254: $i] :
      ( ( ~ ( element @ SV254 @ SV290 )
        | ( empty @ SV290 )
        | ( in @ SV254 @ SV290 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1524]) ).

thf(1579,plain,
    ! [SV255: $i,SV291: $i] :
      ( ( ! [SY2480: $i] :
            ( ~ ( element @ SV291 @ ( powerset @ SY2480 ) )
            | ~ ( in @ SV255 @ SV291 )
            | ( element @ SV255 @ SY2480 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1525]) ).

thf(1580,plain,
    ! [SV256: $i,SV292: $i] :
      ( ( ! [SY2481: $i] :
            ( ~ ( element @ SV292 @ ( powerset @ SY2481 ) )
            | ~ ( in @ SV256 @ SV292 )
            | ~ ( empty @ SY2481 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1526]) ).

thf(1581,plain,
    ! [SV257: $i,SV293: $i] :
      ( ( ~ ( empty @ SV293 )
        | ~ ( in @ SV257 @ SV293 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1527]) ).

thf(1582,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK29_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1529]) ).

thf(1583,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1529]) ).

thf(1584,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)],[1530]) ).

thf(1585,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)],[1530]) ).

thf(1586,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK30_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK30_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1531]) ).

thf(1587,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)],[1531]) ).

thf(1588,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1532]) ).

thf(1589,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1532]) ).

thf(1590,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( sK15_SY2048 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK15_SY2048 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1533]) ).

thf(1591,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 @ ( sK13_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1533]) ).

thf(1592,plain,
    ! [SV258: $i,SV294: $i] :
      ( ( ~ ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        | ~ ( ~ ! [SY2482: $i] :
                  ( ~ ( element @ SY2482 @ ( powerset @ ( powerset @ SV258 ) ) )
                  | ~ ( ~ ( element @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
                      | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                                | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) )
                            | ~ ( ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                                | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
                  | ( SY2482
                    = ( complements_of_subsets @ SV258 @ SV294 ) ) )
            | ~ ! [SY2483: $i] :
                  ( ~ ( element @ SY2483 @ ( powerset @ ( powerset @ SV258 ) ) )
                  | ( SY2483
                   != ( complements_of_subsets @ SV258 @ SV294 ) )
                  | ~ ( ~ ! [SY2484: $i] :
                            ( ~ ( element @ SY2484 @ ( powerset @ SV258 ) )
                            | ~ ( in @ SY2484 @ SY2483 )
                            | ( in @ ( subset_complement @ SV258 @ SY2484 ) @ SV294 ) )
                      | ~ ! [SY2485: $i] :
                            ( ~ ( element @ SY2485 @ ( powerset @ SV258 ) )
                            | ~ ( in @ ( subset_complement @ SV258 @ SY2485 ) @ SV294 )
                            | ( in @ SY2485 @ SY2483 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1534]) ).

thf(1593,plain,
    ! [SV259: $i,SV295: $i] :
      ( ( ~ ( ~ ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV259 )
            | ~ ~ ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV295 ) )
        | ( element @ SV259 @ ( powerset @ SV295 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1535]) ).

thf(1594,plain,
    ! [SV260: $i] :
      ( ( ~ ! [SY2386: $i,SY2387: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SV260 )
                      | ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2386 )
                      | ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SV260 )
                            | ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) )
                        | ~ ( ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2386 )
                            | ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) ) ) )
              | ( SY2387
                = ( set_intersection2 @ SV260 @ SY2386 ) ) )
        | ~ ! [SY2388: $i,SY2389: $i] :
              ( ( SY2389
               != ( set_intersection2 @ SV260 @ SY2388 ) )
              | ~ ( ~ ! [SY2390: $i] :
                        ( ~ ( in @ SY2390 @ SV260 )
                        | ~ ( in @ SY2390 @ SY2388 )
                        | ( in @ SY2390 @ SY2389 ) )
                  | ~ ~ ( ~ ! [SY2391: $i] :
                              ( ~ ( in @ SY2391 @ SY2389 )
                              | ( in @ SY2391 @ SV260 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2389 )
                              | ( in @ SX3 @ SY2388 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1536]) ).

thf(1595,plain,
    ! [SV261: $i] :
      ( ( ( ~ ( relation @ SV261 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2393: $i] :
                    ( ~ ( ~ ( ! [SY2394: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ SY2394 ) @ SV261 )
                            | ~ ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ ( sK18_SY2050 @ SY2393 @ SV261 ) ) @ SV261 )
                            | ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) ) )
                    | ( SY2393
                      = ( relation_dom @ SV261 ) ) )
              | ~ ! [SY2395: $i] :
                    ( ( SY2395
                     != ( relation_dom @ SV261 ) )
                    | ~ ( ~ ! [SY2396: $i] :
                              ( ! [SY2397: $i] :
                                  ~ ( in @ ( ordered_pair @ SY2396 @ SY2397 ) @ SV261 )
                              | ( in @ SY2396 @ SY2395 ) )
                        | ~ ! [SY2398: $i] :
                              ( ~ ( in @ SY2398 @ SY2395 )
                              | ( in @ ( ordered_pair @ SY2398 @ ( sK16_D @ SY2398 @ SY2395 @ SV261 ) ) @ SV261 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1537]) ).

thf(1596,plain,
    ! [SV262: $i] :
      ( ( ~ ! [SY2399: $i,SY2400: $i] :
              ( ~ ( in @ SV262 @ SY2400 )
              | ~ ( in @ SY2399 @ SY2400 )
              | ( subset @ ( unordered_pair @ SV262 @ SY2399 ) @ SY2400 ) )
        | ~ ~ ( ~ ! [SY2401: $i,SY2402: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2401 ) @ SY2402 )
                    | ( in @ SV262 @ SY2402 ) )
              | ~ ! [SY2403: $i,SY2404: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2403 ) @ SY2404 )
                    | ( in @ SY2403 @ SY2404 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1538]) ).

thf(1597,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1539]) ).

thf(1598,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)],[1539]) ).

thf(1599,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                              | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                          | ~ ( ! [SX2: $i] :
                                  ( ~ ( in @ SX2 @ SX0 )
                                  | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                              | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ( SX1
                        = ( set_meet @ SX0 ) ) ) )
            | ~ ! [SX0: $i] :
                  ( ( SX0 = empty_set )
                  | ! [SX1: $i] :
                      ( ( SX1
                       != ( set_meet @ SX0 ) )
                      | ~ ( ~ ! [SX2: $i] :
                                ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ~ ( in @ SX2 @ ( sK31_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)],[1540]) ).

thf(1600,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)],[1540]) ).

thf(1601,plain,
    ! [SV263: $i] :
      ( ( ~ ! [SY2405: $i,SY2406: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                            | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                             != SV263 ) )
                        | ~ ( ~ ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                            | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                             != SY2405 ) ) )
                  | ~ ( ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                      | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                        = SV263 )
                      | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                        = SY2405 ) ) )
              | ( SY2406
                = ( unordered_pair @ SV263 @ SY2405 ) ) )
        | ~ ! [SY2407: $i,SY2408: $i] :
              ( ( SY2408
               != ( unordered_pair @ SV263 @ SY2407 ) )
              | ~ ( ~ ! [SY2409: $i] :
                        ( ~ ( in @ SY2409 @ SY2408 )
                        | ( SY2409 = SV263 )
                        | ( SY2409 = SY2407 ) )
                  | ~ ~ ( ~ ! [SY2410: $i] :
                              ( ( SY2410 != SV263 )
                              | ( in @ SY2410 @ SY2408 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY2407 )
                              | ( in @ SX3 @ SY2408 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1541]) ).

thf(1602,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1542]) ).

thf(1603,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1542]) ).

thf(1604,plain,
    ! [SV264: $i] :
      ( ( ~ ! [SY2412: $i,SY2413: $i] :
              ( ~ ( relation @ SY2413 )
              | ~ ( in @ ( ordered_pair @ SV264 @ SY2412 ) @ SY2413 )
              | ( in @ SV264 @ ( relation_dom @ SY2413 ) ) )
        | ~ ! [SY2414: $i,SY2415: $i] :
              ( ~ ( relation @ SY2415 )
              | ~ ( in @ ( ordered_pair @ SV264 @ SY2414 ) @ SY2415 )
              | ( in @ SY2414 @ ( relation_rng @ SY2415 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1543]) ).

thf(1605,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1544]) ).

thf(1606,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1544]) ).

thf(1607,plain,
    ! [SV265: $i] :
      ( ( ( ~ ( relation @ SV265 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2416: $i] :
                    ( ~ ( ~ ( ! [SY2417: $i] :
                                ~ ( in @ ( ordered_pair @ SY2417 @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                            | ~ ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2416 @ SV265 ) @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                            | ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) ) )
                    | ( SY2416
                      = ( relation_rng @ SV265 ) ) )
              | ~ ! [SY2418: $i] :
                    ( ( SY2418
                     != ( relation_rng @ SV265 ) )
                    | ~ ( ~ ! [SY2419: $i] :
                              ( ! [SY2420: $i] :
                                  ~ ( in @ ( ordered_pair @ SY2420 @ SY2419 ) @ SV265 )
                              | ( in @ SY2419 @ SY2418 ) )
                        | ~ ! [SY2421: $i] :
                              ( ~ ( in @ SY2421 @ SY2418 )
                              | ( in @ ( ordered_pair @ ( sK9_D @ SY2421 @ SY2418 @ SV265 ) @ SY2421 ) @ SV265 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1545]) ).

thf(1608,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
                | ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) )
            | ~ ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
                | ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) ) )
        | ( SV266 = SV296 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1546]) ).

thf(1609,plain,
    ! [SV267: $i] :
      ( ( ~ ! [SY2423: $i] :
              ( ~ ( subset @ SY2423 @ ( sK4_B @ SV267 ) )
              | ( are_equipotent @ SY2423 @ ( sK4_B @ SV267 ) )
              | ( in @ SY2423 @ ( sK4_B @ SV267 ) ) )
        | ~ ~ ( ~ ! [SY2424: $i] :
                    ( ~ ( ~ ! [SY2425: $i] :
                              ( ~ ( subset @ SY2425 @ SY2424 )
                              | ( in @ SY2425 @ ( sK5_SY2040 @ SY2424 @ SV267 ) ) )
                        | ~ ( in @ ( sK5_SY2040 @ SY2424 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
                    | ~ ( in @ SY2424 @ ( sK4_B @ SV267 ) ) )
              | ~ ~ ( ~ ! [SY2426: $i,SY2427: $i] :
                          ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
                          | ~ ( subset @ SY2427 @ SY2426 )
                          | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) )
                    | ~ ( in @ SV267 @ ( sK4_B @ SV267 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1547]) ).

thf(1610,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ~ ( ~ ! [SY2486: $i,SY2487: $i] :
                  ( ~ ( in @ SV268 @ SY2486 )
                  | ~ ( in @ SV297 @ SY2487 )
                  | ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2486 @ SY2487 ) ) )
            | ~ ~ ( ~ ! [SY2488: $i] :
                        ( ! [SY2489: $i] :
                            ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2488 @ SY2489 ) )
                        | ( in @ SV268 @ SY2488 ) )
                  | ~ ! [SY2490: $i,SY2491: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2490 @ SY2491 ) )
                        | ( in @ SV297 @ SY2491 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1548]) ).

thf(1611,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                      ( ( sK36_B @ SX0 )
                     != ( ordered_pair @ SX1 @ SX2 ) )
                | ~ ( in @ ( sK36_B @ SX0 ) @ SX0 ) )
            | ( relation @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1549]) ).

thf(1612,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( relation @ SX0 )
            | ! [SX1: $i] :
                ( ( SX1
                  = ( ordered_pair @ ( sK34_C @ SX1 @ SX0 ) @ ( sK35_SY2059 @ SX1 @ SX0 ) ) )
                | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1549]) ).

thf(1613,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1550]) ).

thf(1614,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1550]) ).

thf(1615,plain,
    ! [SV298: $i,SV269: $i] :
      ( ( ~ ( ~ ! [SY2492: $i] :
                  ( ! [SY2493: $i] :
                      ( ( ordered_pair @ SV269 @ SV298 )
                     != ( ordered_pair @ SY2492 @ SY2493 ) )
                  | ( SV269 = SY2492 ) )
            | ~ ! [SY2494: $i,SY2495: $i] :
                  ( ( ( ordered_pair @ SV269 @ SV298 )
                   != ( ordered_pair @ SY2494 @ SY2495 ) )
                  | ( SV298 = SY2495 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1551]) ).

thf(1616,plain,
    ( ( ~ ( empty @ sK7_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1552]) ).

thf(1617,plain,
    ( ( ~ ( relation @ sK7_A ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1552]) ).

thf(1618,plain,
    ! [SV270: $i] :
      ( ( ~ ! [SY2440: $i,SY2441: $i] :
              ( ~ ( ~ ( ! [SY2442: $i,SY2443: $i] :
                          ( ~ ( in @ SY2442 @ SV270 )
                          | ~ ( in @ SY2443 @ SY2440 )
                          | ( ( sK23_D @ SY2441 @ SY2440 @ SV270 )
                           != ( ordered_pair @ SY2442 @ SY2443 ) ) )
                      | ~ ( in @ ( sK23_D @ SY2441 @ SY2440 @ SV270 ) @ SY2441 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2441 @ SY2440 @ SV270 ) @ SV270 )
                                | ~ ( in @ ( sK25_SY2056 @ SY2441 @ SY2440 @ SV270 ) @ SY2440 ) )
                          | ( ( sK23_D @ SY2441 @ SY2440 @ SV270 )
                           != ( ordered_pair @ ( sK24_SY2054 @ SY2441 @ SY2440 @ SV270 ) @ ( sK25_SY2056 @ SY2441 @ SY2440 @ SV270 ) ) ) )
                      | ( in @ ( sK23_D @ SY2441 @ SY2440 @ SV270 ) @ SY2441 ) ) )
              | ( SY2441
                = ( cartesian_product2 @ SV270 @ SY2440 ) ) )
        | ~ ! [SY2444: $i,SY2445: $i] :
              ( ( SY2445
               != ( cartesian_product2 @ SV270 @ SY2444 ) )
              | ~ ( ~ ! [SY2446: $i] :
                        ( ! [SY2447: $i,SY2448: $i] :
                            ( ~ ( in @ SY2447 @ SV270 )
                            | ~ ( in @ SY2448 @ SY2444 )
                            | ( SY2446
                             != ( ordered_pair @ SY2447 @ SY2448 ) ) )
                        | ( in @ SY2446 @ SY2445 ) )
                  | ~ ! [SY2449: $i] :
                        ( ~ ( in @ SY2449 @ SY2445 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ SV270 )
                                  | ~ ( in @ ( sK22_SY2051 @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ SY2444 ) )
                            | ( SY2449
                             != ( ordered_pair @ ( sK21_E @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ ( sK22_SY2051 @ SY2449 @ SY2445 @ SY2444 @ SV270 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1553]) ).

thf(1619,plain,
    ! [SV271: $i] :
      ( ( ~ ! [SY2450: $i,SY2451: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                            | ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SV271 ) )
                        | ~ ( ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                            | ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2450 ) ) )
                  | ~ ( ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                      | ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SV271 )
                      | ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2450 ) ) )
              | ( SY2451
                = ( set_union2 @ SV271 @ SY2450 ) ) )
        | ~ ! [SY2452: $i,SY2453: $i] :
              ( ( SY2453
               != ( set_union2 @ SV271 @ SY2452 ) )
              | ~ ( ~ ! [SY2454: $i] :
                        ( ~ ( in @ SY2454 @ SY2453 )
                        | ( in @ SY2454 @ SV271 )
                        | ( in @ SY2454 @ SY2452 ) )
                  | ~ ~ ( ~ ! [SY2455: $i] :
                              ( ~ ( in @ SY2455 @ SV271 )
                              | ( in @ SY2455 @ SY2453 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2452 )
                              | ( in @ SX3 @ SY2453 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1554]) ).

thf(1620,plain,
    ! [SV272: $i] :
      ( ( ~ ! [SY2457: $i] :
              ( ~ ( subset @ SY2457 @ ( sK39_B @ SV272 ) )
              | ( are_equipotent @ SY2457 @ ( sK39_B @ SV272 ) )
              | ( in @ SY2457 @ ( sK39_B @ SV272 ) ) )
        | ~ ~ ( ~ ! [SY2458: $i] :
                    ( ~ ( in @ SY2458 @ ( sK39_B @ SV272 ) )
                    | ( in @ ( powerset @ SY2458 ) @ ( sK39_B @ SV272 ) ) )
              | ~ ~ ( ~ ! [SY2459: $i,SY2460: $i] :
                          ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
                          | ~ ( subset @ SY2460 @ SY2459 )
                          | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) )
                    | ~ ( in @ SV272 @ ( sK39_B @ SV272 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1555]) ).

thf(1621,plain,
    ! [SV273: $i] :
      ( ( ( ~ ( relation @ SV273 ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2461: $i] :
                    ( ~ ( relation @ SY2461 )
                    | ~ ( subset @ SV273 @ SY2461 )
                    | ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SY2461 ) ) )
              | ~ ! [SY2462: $i] :
                    ( ~ ( relation @ SY2462 )
                    | ~ ( subset @ SV273 @ SY2462 )
                    | ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SY2462 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1556]) ).

thf(1622,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ~ ( ~ ! [SY2496: $i,SY2497: $i] :
                  ( ~ ( in @ SV274 @ SY2496 )
                  | ~ ( in @ SV299 @ SY2497 )
                  | ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2496 @ SY2497 ) ) )
            | ~ ~ ( ~ ! [SY2498: $i] :
                        ( ! [SY2499: $i] :
                            ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2498 @ SY2499 ) )
                        | ( in @ SV274 @ SY2498 ) )
                  | ~ ! [SY2500: $i,SY2501: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2500 @ SY2501 ) )
                        | ( in @ SV299 @ SY2501 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1557]) ).

thf(1623,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1558]) ).

thf(1624,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1558]) ).

thf(1625,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1559]) ).

thf(1626,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1559]) ).

thf(1627,plain,
    ! [SV275: $i] :
      ( ( ~ ! [SY2470: $i,SY2471: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SV275 )
                      | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2470 )
                      | ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SV275 )
                            | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) )
                        | ~ ( ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2470 )
                            | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) ) ) )
              | ( SY2471
                = ( set_difference @ SV275 @ SY2470 ) ) )
        | ~ ! [SY2472: $i,SY2473: $i] :
              ( ( SY2473
               != ( set_difference @ SV275 @ SY2472 ) )
              | ~ ( ~ ! [SY2474: $i] :
                        ( ~ ( in @ SY2474 @ SV275 )
                        | ( in @ SY2474 @ SY2472 )
                        | ( in @ SY2474 @ SY2473 ) )
                  | ~ ~ ( ~ ! [SY2475: $i] :
                              ( ~ ( in @ SY2475 @ SY2473 )
                              | ( in @ SY2475 @ SV275 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2473 )
                              | ~ ( in @ SX3 @ SY2472 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1560]) ).

thf(1628,plain,
    ! [SV276: $i,SV237: $i] :
      ( ( ( ~ ( in @ SV237 @ SV276 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV237 ) @ SV276 )
          = SV276 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1561]) ).

thf(1629,plain,
    ! [SV277: $i,SV238: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV238 ) @ SV277 ) )
        = $true )
      | ( ( ~ ( in @ SV238 @ SV277 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1562]) ).

thf(1630,plain,
    ! [SV278: $i,SV239: $i] :
      ( ( ( in @ SV239 @ SV278 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV239 ) @ SV278 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1563]) ).

thf(1631,plain,
    ! [SV240: $i,SV279: $i] :
      ( ( ( ~ ( element @ SV279 @ ( powerset @ SV240 ) ) )
        = $true )
      | ( ( ! [SY2477: $i] :
              ( ~ ( in @ SY2477 @ SV279 )
              | ( in @ SY2477 @ SV240 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1564]) ).

thf(1632,plain,
    ! [SV280: $i,SV241: $i] :
      ( ( ( ~ ( subset @ SV241 @ SV280 ) )
        = $true )
      | ( ( ! [SY2478: $i] :
              ( ( in @ SY2478 @ SV241 )
              | ( subset @ SV241 @ ( set_difference @ SV280 @ ( singleton @ SY2478 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1565]) ).

thf(1633,plain,
    ! [SV281: $i,SV242: $i] :
      ( ( ( ~ ( in @ SV242 @ SV281 ) )
        = $true )
      | ( ( subset @ SV242 @ ( union @ SV281 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1566]) ).

thf(1634,plain,
    ! [SV243: $i] :
      ( ( ( relation @ SV243 )
        = $false )
      | ( ( subset @ SV243 @ ( cartesian_product2 @ ( relation_dom @ SV243 ) @ ( relation_rng @ SV243 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1567]) ).

thf(1635,plain,
    ! [SV282: $i,SV244: $i] :
      ( ( ( ~ ( in @ SV244 @ SV282 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV244 ) @ SV282 )
          = SV282 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1568]) ).

thf(1636,plain,
    ! [SV245: $i,SV300: $i] :
      ( ( ( ~ ( element @ SV300 @ ( powerset @ SV245 ) )
          | ! [SY2502: $i] :
              ( ~ ( element @ SY2502 @ SV245 )
              | ( in @ SY2502 @ SV300 )
              | ( in @ SY2502 @ ( subset_complement @ SV245 @ SV300 ) ) ) )
        = $true )
      | ( ( SV245 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1569]) ).

thf(1637,plain,
    ! [SV283: $i,SV246: $i,SV301: $i] :
      ( ( ~ ( element @ SV301 @ ( powerset @ SV246 ) )
        | ~ ( in @ SV283 @ ( subset_complement @ SV246 @ SV301 ) )
        | ~ ( in @ SV283 @ SV301 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1570]) ).

thf(1638,plain,
    ! [SV284: $i,SV247: $i] :
      ( ( ( ~ ( in @ SV247 @ SV284 ) )
        = $true )
      | ( ( subset @ SV247 @ ( union @ SV284 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1571]) ).

thf(1639,plain,
    ! [SV285: $i,SV248: $i] :
      ( ( ( ~ ( in @ SV248 @ SV285 ) )
        = $true )
      | ( ( ~ ( in @ SV285 @ SV248 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1572]) ).

thf(1640,plain,
    ! [SV250: $i] :
      ( ( ( relation @ SV250 )
        = $false )
      | ( ( ( relation_field @ SV250 )
          = ( set_union2 @ ( relation_dom @ SV250 ) @ ( relation_rng @ SV250 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1574]) ).

thf(1641,plain,
    ! [SV287: $i,SV251: $i] :
      ( ( empty @ ( ordered_pair @ SV251 @ SV287 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1575]) ).

thf(1642,plain,
    ! [SV288: $i,SV252: $i] :
      ( ( ( ~ ( relation @ SV252 )
          | ~ ( relation @ SV288 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV252 @ SV288 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1576]) ).

thf(1643,plain,
    ! [SV289: $i,SV253: $i] :
      ( ( ( ~ ( in @ SV253 @ SV289 ) )
        = $true )
      | ( ( element @ SV253 @ SV289 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1577]) ).

thf(1644,plain,
    ! [SV290: $i,SV254: $i] :
      ( ( ( ~ ( element @ SV254 @ SV290 ) )
        = $true )
      | ( ( ( empty @ SV290 )
          | ( in @ SV254 @ SV290 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1578]) ).

thf(1645,plain,
    ! [SV255: $i,SV302: $i,SV291: $i] :
      ( ( ~ ( element @ SV291 @ ( powerset @ SV302 ) )
        | ~ ( in @ SV255 @ SV291 )
        | ( element @ SV255 @ SV302 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1579]) ).

thf(1646,plain,
    ! [SV256: $i,SV303: $i,SV292: $i] :
      ( ( ~ ( element @ SV292 @ ( powerset @ SV303 ) )
        | ~ ( in @ SV256 @ SV292 )
        | ~ ( empty @ SV303 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1580]) ).

thf(1647,plain,
    ! [SV257: $i,SV293: $i] :
      ( ( ( ~ ( empty @ SV293 ) )
        = $true )
      | ( ( ~ ( in @ SV257 @ SV293 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1581]) ).

thf(1648,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK29_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1582]) ).

thf(1649,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1583]) ).

thf(1650,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)],[1584]) ).

thf(1651,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)],[1585]) ).

thf(1652,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK30_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK30_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK30_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1586]) ).

thf(1653,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)],[1587]) ).

thf(1654,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK38_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1588]) ).

thf(1655,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1589]) ).

thf(1656,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ! [SX2: $i] :
                      ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX2 )
                      | ~ ( in @ SX2 @ SX0 ) )
                  | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( sK15_SY2048 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK15_SY2048 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1590]) ).

thf(1657,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 @ ( sK13_D @ SX2 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1591]) ).

thf(1658,plain,
    ! [SV258: $i,SV294: $i] :
      ( ( ( ~ ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2482: $i] :
                    ( ~ ( element @ SY2482 @ ( powerset @ ( powerset @ SV258 ) ) )
                    | ~ ( ~ ( element @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
                        | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                                  | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) )
                              | ~ ( ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                                  | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
                    | ( SY2482
                      = ( complements_of_subsets @ SV258 @ SV294 ) ) )
              | ~ ! [SY2483: $i] :
                    ( ~ ( element @ SY2483 @ ( powerset @ ( powerset @ SV258 ) ) )
                    | ( SY2483
                     != ( complements_of_subsets @ SV258 @ SV294 ) )
                    | ~ ( ~ ! [SY2484: $i] :
                              ( ~ ( element @ SY2484 @ ( powerset @ SV258 ) )
                              | ~ ( in @ SY2484 @ SY2483 )
                              | ( in @ ( subset_complement @ SV258 @ SY2484 ) @ SV294 ) )
                        | ~ ! [SY2485: $i] :
                              ( ~ ( element @ SY2485 @ ( powerset @ SV258 ) )
                              | ~ ( in @ ( subset_complement @ SV258 @ SY2485 ) @ SV294 )
                              | ( in @ SY2485 @ SY2483 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1592]) ).

thf(1659,plain,
    ! [SV259: $i,SV295: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV259 )
              | ~ ~ ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV295 ) ) )
        = $true )
      | ( ( element @ SV259 @ ( powerset @ SV295 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1593]) ).

thf(1660,plain,
    ! [SV260: $i] :
      ( ( ~ ! [SY2386: $i,SY2387: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SV260 )
                      | ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2386 )
                      | ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SV260 )
                            | ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) )
                        | ~ ( ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2386 )
                            | ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) ) ) )
              | ( SY2387
                = ( set_intersection2 @ SV260 @ SY2386 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1594]) ).

thf(1661,plain,
    ! [SV260: $i] :
      ( ( ~ ! [SY2388: $i,SY2389: $i] :
              ( ( SY2389
               != ( set_intersection2 @ SV260 @ SY2388 ) )
              | ~ ( ~ ! [SY2390: $i] :
                        ( ~ ( in @ SY2390 @ SV260 )
                        | ~ ( in @ SY2390 @ SY2388 )
                        | ( in @ SY2390 @ SY2389 ) )
                  | ~ ~ ( ~ ! [SY2391: $i] :
                              ( ~ ( in @ SY2391 @ SY2389 )
                              | ( in @ SY2391 @ SV260 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2389 )
                              | ( in @ SX3 @ SY2388 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1594]) ).

thf(1662,plain,
    ! [SV261: $i] :
      ( ( ( relation @ SV261 )
        = $false )
      | ( ( ~ ( ~ ! [SY2393: $i] :
                    ( ~ ( ~ ( ! [SY2394: $i] :
                                ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ SY2394 ) @ SV261 )
                            | ~ ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ ( sK18_SY2050 @ SY2393 @ SV261 ) ) @ SV261 )
                            | ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) ) )
                    | ( SY2393
                      = ( relation_dom @ SV261 ) ) )
              | ~ ! [SY2395: $i] :
                    ( ( SY2395
                     != ( relation_dom @ SV261 ) )
                    | ~ ( ~ ! [SY2396: $i] :
                              ( ! [SY2397: $i] :
                                  ~ ( in @ ( ordered_pair @ SY2396 @ SY2397 ) @ SV261 )
                              | ( in @ SY2396 @ SY2395 ) )
                        | ~ ! [SY2398: $i] :
                              ( ~ ( in @ SY2398 @ SY2395 )
                              | ( in @ ( ordered_pair @ SY2398 @ ( sK16_D @ SY2398 @ SY2395 @ SV261 ) ) @ SV261 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1595]) ).

thf(1663,plain,
    ! [SV262: $i] :
      ( ( ~ ! [SY2399: $i,SY2400: $i] :
              ( ~ ( in @ SV262 @ SY2400 )
              | ~ ( in @ SY2399 @ SY2400 )
              | ( subset @ ( unordered_pair @ SV262 @ SY2399 ) @ SY2400 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1596]) ).

thf(1664,plain,
    ! [SV262: $i] :
      ( ( ~ ~ ( ~ ! [SY2401: $i,SY2402: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2401 ) @ SY2402 )
                    | ( in @ SV262 @ SY2402 ) )
              | ~ ! [SY2403: $i,SY2404: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2403 ) @ SY2404 )
                    | ( in @ SY2403 @ SY2404 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1596]) ).

thf(1665,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK28_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK28_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1597]) ).

thf(1666,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)],[1598]) ).

thf(1667,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                                | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                            | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                        | ~ ( ! [SX2: $i] :
                                ( ~ ( in @ SX2 @ SX0 )
                                | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                            | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                    | ( SX1
                      = ( set_meet @ SX0 ) ) ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 = empty_set )
                | ! [SX1: $i] :
                    ( ( SX1
                     != ( set_meet @ SX0 ) )
                    | ~ ( ~ ! [SX2: $i] :
                              ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                  | ~ ~ ( in @ SX2 @ ( sK31_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)],[1599]) ).

thf(1668,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)],[1600]) ).

thf(1669,plain,
    ! [SV263: $i] :
      ( ( ~ ! [SY2405: $i,SY2406: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                            | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                             != SV263 ) )
                        | ~ ( ~ ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                            | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                             != SY2405 ) ) )
                  | ~ ( ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                      | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                        = SV263 )
                      | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                        = SY2405 ) ) )
              | ( SY2406
                = ( unordered_pair @ SV263 @ SY2405 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1601]) ).

thf(1670,plain,
    ! [SV263: $i] :
      ( ( ~ ! [SY2407: $i,SY2408: $i] :
              ( ( SY2408
               != ( unordered_pair @ SV263 @ SY2407 ) )
              | ~ ( ~ ! [SY2409: $i] :
                        ( ~ ( in @ SY2409 @ SY2408 )
                        | ( SY2409 = SV263 )
                        | ( SY2409 = SY2407 ) )
                  | ~ ~ ( ~ ! [SY2410: $i] :
                              ( ( SY2410 != SV263 )
                              | ( in @ SY2410 @ SY2408 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY2407 )
                              | ( in @ SX3 @ SY2408 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1601]) ).

thf(1671,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1602]) ).

thf(1672,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1603]) ).

thf(1673,plain,
    ! [SV264: $i] :
      ( ( ~ ! [SY2412: $i,SY2413: $i] :
              ( ~ ( relation @ SY2413 )
              | ~ ( in @ ( ordered_pair @ SV264 @ SY2412 ) @ SY2413 )
              | ( in @ SV264 @ ( relation_dom @ SY2413 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1604]) ).

thf(1674,plain,
    ! [SV264: $i] :
      ( ( ~ ! [SY2414: $i,SY2415: $i] :
              ( ~ ( relation @ SY2415 )
              | ~ ( in @ ( ordered_pair @ SV264 @ SY2414 ) @ SY2415 )
              | ( in @ SY2414 @ ( relation_rng @ SY2415 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1604]) ).

thf(1675,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1605]) ).

thf(1676,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1606]) ).

thf(1677,plain,
    ! [SV265: $i] :
      ( ( ( relation @ SV265 )
        = $false )
      | ( ( ~ ( ~ ! [SY2416: $i] :
                    ( ~ ( ~ ( ! [SY2417: $i] :
                                ~ ( in @ ( ordered_pair @ SY2417 @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                            | ~ ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) )
                        | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2416 @ SV265 ) @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                            | ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) ) )
                    | ( SY2416
                      = ( relation_rng @ SV265 ) ) )
              | ~ ! [SY2418: $i] :
                    ( ( SY2418
                     != ( relation_rng @ SV265 ) )
                    | ~ ( ~ ! [SY2419: $i] :
                              ( ! [SY2420: $i] :
                                  ~ ( in @ ( ordered_pair @ SY2420 @ SY2419 ) @ SV265 )
                              | ( in @ SY2419 @ SY2418 ) )
                        | ~ ! [SY2421: $i] :
                              ( ~ ( in @ SY2421 @ SY2418 )
                              | ( in @ ( ordered_pair @ ( sK9_D @ SY2421 @ SY2418 @ SV265 ) @ SY2421 ) @ SV265 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1607]) ).

thf(1678,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
                  | ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) )
              | ~ ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
                  | ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) ) ) )
        = $true )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1608]) ).

thf(1679,plain,
    ! [SV267: $i] :
      ( ( ~ ! [SY2423: $i] :
              ( ~ ( subset @ SY2423 @ ( sK4_B @ SV267 ) )
              | ( are_equipotent @ SY2423 @ ( sK4_B @ SV267 ) )
              | ( in @ SY2423 @ ( sK4_B @ SV267 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1609]) ).

thf(1680,plain,
    ! [SV267: $i] :
      ( ( ~ ~ ( ~ ! [SY2424: $i] :
                    ( ~ ( ~ ! [SY2425: $i] :
                              ( ~ ( subset @ SY2425 @ SY2424 )
                              | ( in @ SY2425 @ ( sK5_SY2040 @ SY2424 @ SV267 ) ) )
                        | ~ ( in @ ( sK5_SY2040 @ SY2424 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
                    | ~ ( in @ SY2424 @ ( sK4_B @ SV267 ) ) )
              | ~ ~ ( ~ ! [SY2426: $i,SY2427: $i] :
                          ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
                          | ~ ( subset @ SY2427 @ SY2426 )
                          | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) )
                    | ~ ( in @ SV267 @ ( sK4_B @ SV267 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1609]) ).

thf(1681,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ~ ! [SY2486: $i,SY2487: $i] :
              ( ~ ( in @ SV268 @ SY2486 )
              | ~ ( in @ SV297 @ SY2487 )
              | ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2486 @ SY2487 ) ) )
        | ~ ~ ( ~ ! [SY2488: $i] :
                    ( ! [SY2489: $i] :
                        ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2488 @ SY2489 ) )
                    | ( in @ SV268 @ SY2488 ) )
              | ~ ! [SY2490: $i,SY2491: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2490 @ SY2491 ) )
                    | ( in @ SV297 @ SY2491 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1610]) ).

thf(1682,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ~ ! [SX1: $i,SX2: $i] :
                    ( ( sK36_B @ SX0 )
                   != ( ordered_pair @ SX1 @ SX2 ) )
              | ~ ( in @ ( sK36_B @ SX0 ) @ SX0 ) )
          | ( relation @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1611]) ).

thf(1683,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ( ( SX1
                = ( ordered_pair @ ( sK34_C @ SX1 @ SX0 ) @ ( sK35_SY2059 @ SX1 @ SX0 ) ) )
              | ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1612]) ).

thf(1684,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1613]) ).

thf(1685,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1614]) ).

thf(1686,plain,
    ! [SV298: $i,SV269: $i] :
      ( ( ~ ! [SY2492: $i] :
              ( ! [SY2493: $i] :
                  ( ( ordered_pair @ SV269 @ SV298 )
                 != ( ordered_pair @ SY2492 @ SY2493 ) )
              | ( SV269 = SY2492 ) )
        | ~ ! [SY2494: $i,SY2495: $i] :
              ( ( ( ordered_pair @ SV269 @ SV298 )
               != ( ordered_pair @ SY2494 @ SY2495 ) )
              | ( SV298 = SY2495 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1615]) ).

thf(1687,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1616]) ).

thf(1688,plain,
    ( ( relation @ sK7_A )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1617]) ).

thf(1689,plain,
    ! [SV270: $i] :
      ( ( ~ ! [SY2440: $i,SY2441: $i] :
              ( ~ ( ~ ( ! [SY2442: $i,SY2443: $i] :
                          ( ~ ( in @ SY2442 @ SV270 )
                          | ~ ( in @ SY2443 @ SY2440 )
                          | ( ( sK23_D @ SY2441 @ SY2440 @ SV270 )
                           != ( ordered_pair @ SY2442 @ SY2443 ) ) )
                      | ~ ( in @ ( sK23_D @ SY2441 @ SY2440 @ SV270 ) @ SY2441 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2441 @ SY2440 @ SV270 ) @ SV270 )
                                | ~ ( in @ ( sK25_SY2056 @ SY2441 @ SY2440 @ SV270 ) @ SY2440 ) )
                          | ( ( sK23_D @ SY2441 @ SY2440 @ SV270 )
                           != ( ordered_pair @ ( sK24_SY2054 @ SY2441 @ SY2440 @ SV270 ) @ ( sK25_SY2056 @ SY2441 @ SY2440 @ SV270 ) ) ) )
                      | ( in @ ( sK23_D @ SY2441 @ SY2440 @ SV270 ) @ SY2441 ) ) )
              | ( SY2441
                = ( cartesian_product2 @ SV270 @ SY2440 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1618]) ).

thf(1690,plain,
    ! [SV270: $i] :
      ( ( ~ ! [SY2444: $i,SY2445: $i] :
              ( ( SY2445
               != ( cartesian_product2 @ SV270 @ SY2444 ) )
              | ~ ( ~ ! [SY2446: $i] :
                        ( ! [SY2447: $i,SY2448: $i] :
                            ( ~ ( in @ SY2447 @ SV270 )
                            | ~ ( in @ SY2448 @ SY2444 )
                            | ( SY2446
                             != ( ordered_pair @ SY2447 @ SY2448 ) ) )
                        | ( in @ SY2446 @ SY2445 ) )
                  | ~ ! [SY2449: $i] :
                        ( ~ ( in @ SY2449 @ SY2445 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ SV270 )
                                  | ~ ( in @ ( sK22_SY2051 @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ SY2444 ) )
                            | ( SY2449
                             != ( ordered_pair @ ( sK21_E @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ ( sK22_SY2051 @ SY2449 @ SY2445 @ SY2444 @ SV270 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1618]) ).

thf(1691,plain,
    ! [SV271: $i] :
      ( ( ~ ! [SY2450: $i,SY2451: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                            | ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SV271 ) )
                        | ~ ( ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                            | ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2450 ) ) )
                  | ~ ( ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                      | ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SV271 )
                      | ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2450 ) ) )
              | ( SY2451
                = ( set_union2 @ SV271 @ SY2450 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1619]) ).

thf(1692,plain,
    ! [SV271: $i] :
      ( ( ~ ! [SY2452: $i,SY2453: $i] :
              ( ( SY2453
               != ( set_union2 @ SV271 @ SY2452 ) )
              | ~ ( ~ ! [SY2454: $i] :
                        ( ~ ( in @ SY2454 @ SY2453 )
                        | ( in @ SY2454 @ SV271 )
                        | ( in @ SY2454 @ SY2452 ) )
                  | ~ ~ ( ~ ! [SY2455: $i] :
                              ( ~ ( in @ SY2455 @ SV271 )
                              | ( in @ SY2455 @ SY2453 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2452 )
                              | ( in @ SX3 @ SY2453 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1619]) ).

thf(1693,plain,
    ! [SV272: $i] :
      ( ( ~ ! [SY2457: $i] :
              ( ~ ( subset @ SY2457 @ ( sK39_B @ SV272 ) )
              | ( are_equipotent @ SY2457 @ ( sK39_B @ SV272 ) )
              | ( in @ SY2457 @ ( sK39_B @ SV272 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1620]) ).

thf(1694,plain,
    ! [SV272: $i] :
      ( ( ~ ~ ( ~ ! [SY2458: $i] :
                    ( ~ ( in @ SY2458 @ ( sK39_B @ SV272 ) )
                    | ( in @ ( powerset @ SY2458 ) @ ( sK39_B @ SV272 ) ) )
              | ~ ~ ( ~ ! [SY2459: $i,SY2460: $i] :
                          ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
                          | ~ ( subset @ SY2460 @ SY2459 )
                          | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) )
                    | ~ ( in @ SV272 @ ( sK39_B @ SV272 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1620]) ).

thf(1695,plain,
    ! [SV273: $i] :
      ( ( ( relation @ SV273 )
        = $false )
      | ( ( ~ ( ~ ! [SY2461: $i] :
                    ( ~ ( relation @ SY2461 )
                    | ~ ( subset @ SV273 @ SY2461 )
                    | ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SY2461 ) ) )
              | ~ ! [SY2462: $i] :
                    ( ~ ( relation @ SY2462 )
                    | ~ ( subset @ SV273 @ SY2462 )
                    | ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SY2462 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1621]) ).

thf(1696,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ~ ! [SY2496: $i,SY2497: $i] :
              ( ~ ( in @ SV274 @ SY2496 )
              | ~ ( in @ SV299 @ SY2497 )
              | ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2496 @ SY2497 ) ) )
        | ~ ~ ( ~ ! [SY2498: $i] :
                    ( ! [SY2499: $i] :
                        ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2498 @ SY2499 ) )
                    | ( in @ SV274 @ SY2498 ) )
              | ~ ! [SY2500: $i,SY2501: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2500 @ SY2501 ) )
                    | ( in @ SV299 @ SY2501 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1622]) ).

thf(1697,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK37_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1623]) ).

thf(1698,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1624]) ).

thf(1699,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK20_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1625]) ).

thf(1700,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1626]) ).

thf(1701,plain,
    ! [SV275: $i] :
      ( ( ~ ! [SY2470: $i,SY2471: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SV275 )
                      | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2470 )
                      | ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SV275 )
                            | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) )
                        | ~ ( ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2470 )
                            | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) ) ) )
              | ( SY2471
                = ( set_difference @ SV275 @ SY2470 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1627]) ).

thf(1702,plain,
    ! [SV275: $i] :
      ( ( ~ ! [SY2472: $i,SY2473: $i] :
              ( ( SY2473
               != ( set_difference @ SV275 @ SY2472 ) )
              | ~ ( ~ ! [SY2474: $i] :
                        ( ~ ( in @ SY2474 @ SV275 )
                        | ( in @ SY2474 @ SY2472 )
                        | ( in @ SY2474 @ SY2473 ) )
                  | ~ ~ ( ~ ! [SY2475: $i] :
                              ( ~ ( in @ SY2475 @ SY2473 )
                              | ( in @ SY2475 @ SV275 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY2473 )
                              | ~ ( in @ SX3 @ SY2472 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1627]) ).

thf(1703,plain,
    ! [SV276: $i,SV237: $i] :
      ( ( ( in @ SV237 @ SV276 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV237 ) @ SV276 )
          = SV276 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1628]) ).

thf(1704,plain,
    ! [SV277: $i,SV238: $i] :
      ( ( ( disjoint @ ( singleton @ SV238 ) @ SV277 )
        = $false )
      | ( ( ~ ( in @ SV238 @ SV277 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1629]) ).

thf(1705,plain,
    ! [SV240: $i,SV279: $i] :
      ( ( ( element @ SV279 @ ( powerset @ SV240 ) )
        = $false )
      | ( ( ! [SY2477: $i] :
              ( ~ ( in @ SY2477 @ SV279 )
              | ( in @ SY2477 @ SV240 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1631]) ).

thf(1706,plain,
    ! [SV280: $i,SV241: $i] :
      ( ( ( subset @ SV241 @ SV280 )
        = $false )
      | ( ( ! [SY2478: $i] :
              ( ( in @ SY2478 @ SV241 )
              | ( subset @ SV241 @ ( set_difference @ SV280 @ ( singleton @ SY2478 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1632]) ).

thf(1707,plain,
    ! [SV281: $i,SV242: $i] :
      ( ( ( in @ SV242 @ SV281 )
        = $false )
      | ( ( subset @ SV242 @ ( union @ SV281 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1633]) ).

thf(1708,plain,
    ! [SV282: $i,SV244: $i] :
      ( ( ( in @ SV244 @ SV282 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV244 ) @ SV282 )
          = SV282 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1635]) ).

thf(1709,plain,
    ! [SV245: $i,SV300: $i] :
      ( ( ( ~ ( element @ SV300 @ ( powerset @ SV245 ) ) )
        = $true )
      | ( ( ! [SY2502: $i] :
              ( ~ ( element @ SY2502 @ SV245 )
              | ( in @ SY2502 @ SV300 )
              | ( in @ SY2502 @ ( subset_complement @ SV245 @ SV300 ) ) ) )
        = $true )
      | ( ( SV245 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1636]) ).

thf(1710,plain,
    ! [SV283: $i,SV246: $i,SV301: $i] :
      ( ( ( ~ ( element @ SV301 @ ( powerset @ SV246 ) ) )
        = $true )
      | ( ( ~ ( in @ SV283 @ ( subset_complement @ SV246 @ SV301 ) )
          | ~ ( in @ SV283 @ SV301 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1637]) ).

thf(1711,plain,
    ! [SV284: $i,SV247: $i] :
      ( ( ( in @ SV247 @ SV284 )
        = $false )
      | ( ( subset @ SV247 @ ( union @ SV284 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1638]) ).

thf(1712,plain,
    ! [SV285: $i,SV248: $i] :
      ( ( ( in @ SV248 @ SV285 )
        = $false )
      | ( ( ~ ( in @ SV285 @ SV248 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1639]) ).

thf(1713,plain,
    ! [SV288: $i,SV252: $i] :
      ( ( ( ~ ( relation @ SV252 ) )
        = $true )
      | ( ( ~ ( relation @ SV288 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV252 @ SV288 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1642]) ).

thf(1714,plain,
    ! [SV289: $i,SV253: $i] :
      ( ( ( in @ SV253 @ SV289 )
        = $false )
      | ( ( element @ SV253 @ SV289 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1643]) ).

thf(1715,plain,
    ! [SV290: $i,SV254: $i] :
      ( ( ( element @ SV254 @ SV290 )
        = $false )
      | ( ( ( empty @ SV290 )
          | ( in @ SV254 @ SV290 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1644]) ).

thf(1716,plain,
    ! [SV255: $i,SV302: $i,SV291: $i] :
      ( ( ( ~ ( element @ SV291 @ ( powerset @ SV302 ) )
          | ~ ( in @ SV255 @ SV291 ) )
        = $true )
      | ( ( element @ SV255 @ SV302 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1645]) ).

thf(1717,plain,
    ! [SV256: $i,SV303: $i,SV292: $i] :
      ( ( ( ~ ( element @ SV292 @ ( powerset @ SV303 ) )
          | ~ ( in @ SV256 @ SV292 ) )
        = $true )
      | ( ( ~ ( empty @ SV303 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1646]) ).

thf(1718,plain,
    ! [SV257: $i,SV293: $i] :
      ( ( ( empty @ SV293 )
        = $false )
      | ( ( ~ ( in @ SV257 @ SV293 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1647]) ).

thf(1719,plain,
    ! [SV304: $i] :
      ( ( ( in @ ( sK29_B @ SV304 ) @ SV304 )
        | ( SV304 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1648]) ).

thf(1720,plain,
    ! [SV305: $i] :
      ( ( ( SV305 != empty_set )
        | ! [SY2503: $i] :
            ~ ( in @ SY2503 @ SV305 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1649]) ).

thf(1721,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)],[1650]) ).

thf(1722,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)],[1651]) ).

thf(1723,plain,
    ! [SV306: $i] :
      ( ( ! [SY2504: $i] :
            ( ~ ( ~ ( ( ( sK30_C @ SY2504 @ SV306 )
                     != SV306 )
                    | ~ ( in @ ( sK30_C @ SY2504 @ SV306 ) @ SY2504 ) )
                | ~ ( ( ( sK30_C @ SY2504 @ SV306 )
                      = SV306 )
                    | ( in @ ( sK30_C @ SY2504 @ SV306 ) @ SY2504 ) ) )
            | ( SY2504
              = ( singleton @ SV306 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1652]) ).

thf(1724,plain,
    ! [SV307: $i] :
      ( ( ! [SY2505: $i] :
            ( ( SY2505
             != ( singleton @ SV307 ) )
            | ~ ( ~ ! [SY2506: $i] :
                      ( ( SY2506 != SV307 )
                      | ( in @ SY2506 @ SY2505 ) )
                | ~ ! [SY2507: $i] :
                      ( ~ ( in @ SY2507 @ SY2505 )
                      | ( SY2507 = SV307 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1653]) ).

thf(1725,plain,
    ! [SV308: $i] :
      ( ( ! [SY2508: $i] :
            ( ( disjoint @ SV308 @ SY2508 )
            | ~ ( ~ ( in @ ( sK38_C @ SY2508 @ SV308 ) @ SV308 )
                | ~ ( in @ ( sK38_C @ SY2508 @ SV308 ) @ SY2508 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1654]) ).

thf(1726,plain,
    ! [SV309: $i] :
      ( ( ! [SY2509: $i] :
            ( ! [SY2510: $i] :
                ( ~ ( in @ SY2510 @ SV309 )
                | ~ ( in @ SY2510 @ SY2509 ) )
            | ~ ( disjoint @ SV309 @ SY2509 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1655]) ).

thf(1727,plain,
    ! [SV310: $i] :
      ( ( ! [SY2511: $i] :
            ( ~ ( ~ ( ! [SY2512: $i] :
                        ( ~ ( in @ ( sK14_C @ SY2511 @ SV310 ) @ SY2512 )
                        | ~ ( in @ SY2512 @ SV310 ) )
                    | ~ ( in @ ( sK14_C @ SY2511 @ SV310 ) @ SY2511 ) )
                | ~ ( ~ ( ~ ( in @ ( sK14_C @ SY2511 @ SV310 ) @ ( sK15_SY2048 @ SY2511 @ SV310 ) )
                        | ~ ( in @ ( sK15_SY2048 @ SY2511 @ SV310 ) @ SV310 ) )
                    | ( in @ ( sK14_C @ SY2511 @ SV310 ) @ SY2511 ) ) )
            | ( SY2511
              = ( union @ SV310 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1656]) ).

thf(1728,plain,
    ! [SV311: $i] :
      ( ( ! [SY2513: $i] :
            ( ( SY2513
             != ( union @ SV311 ) )
            | ~ ( ~ ! [SY2514: $i] :
                      ( ! [SY2515: $i] :
                          ( ~ ( in @ SY2514 @ SY2515 )
                          | ~ ( in @ SY2515 @ SV311 ) )
                      | ( in @ SY2514 @ SY2513 ) )
                | ~ ! [SY2516: $i] :
                      ( ~ ( in @ SY2516 @ SY2513 )
                      | ~ ( ~ ( in @ SY2516 @ ( sK13_D @ SY2516 @ SY2513 @ SV311 ) )
                          | ~ ( in @ ( sK13_D @ SY2516 @ SY2513 @ SV311 ) @ SV311 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1657]) ).

thf(1729,plain,
    ! [SV258: $i,SV294: $i] :
      ( ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2482: $i] :
                    ( ~ ( element @ SY2482 @ ( powerset @ ( powerset @ SV258 ) ) )
                    | ~ ( ~ ( element @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
                        | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                                  | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) )
                              | ~ ( ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                                  | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
                    | ( SY2482
                      = ( complements_of_subsets @ SV258 @ SV294 ) ) )
              | ~ ! [SY2483: $i] :
                    ( ~ ( element @ SY2483 @ ( powerset @ ( powerset @ SV258 ) ) )
                    | ( SY2483
                     != ( complements_of_subsets @ SV258 @ SV294 ) )
                    | ~ ( ~ ! [SY2484: $i] :
                              ( ~ ( element @ SY2484 @ ( powerset @ SV258 ) )
                              | ~ ( in @ SY2484 @ SY2483 )
                              | ( in @ ( subset_complement @ SV258 @ SY2484 ) @ SV294 ) )
                        | ~ ! [SY2485: $i] :
                              ( ~ ( element @ SY2485 @ ( powerset @ SV258 ) )
                              | ~ ( in @ ( subset_complement @ SV258 @ SY2485 ) @ SV294 )
                              | ( in @ SY2485 @ SY2483 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1658]) ).

thf(1730,plain,
    ! [SV259: $i,SV295: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV259 )
          | ~ ~ ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV295 ) )
        = $false )
      | ( ( element @ SV259 @ ( powerset @ SV295 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1659]) ).

thf(1731,plain,
    ! [SV260: $i] :
      ( ( ! [SY2386: $i,SY2387: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SV260 )
                    | ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2386 )
                    | ~ ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) )
                | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SV260 )
                          | ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) )
                      | ~ ( ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2386 )
                          | ( in @ ( sK19_D @ SY2387 @ SY2386 @ SV260 ) @ SY2387 ) ) ) )
            | ( SY2387
              = ( set_intersection2 @ SV260 @ SY2386 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1660]) ).

thf(1732,plain,
    ! [SV260: $i] :
      ( ( ! [SY2388: $i,SY2389: $i] :
            ( ( SY2389
             != ( set_intersection2 @ SV260 @ SY2388 ) )
            | ~ ( ~ ! [SY2390: $i] :
                      ( ~ ( in @ SY2390 @ SV260 )
                      | ~ ( in @ SY2390 @ SY2388 )
                      | ( in @ SY2390 @ SY2389 ) )
                | ~ ~ ( ~ ! [SY2391: $i] :
                            ( ~ ( in @ SY2391 @ SY2389 )
                            | ( in @ SY2391 @ SV260 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY2389 )
                            | ( in @ SX3 @ SY2388 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1661]) ).

thf(1733,plain,
    ! [SV261: $i] :
      ( ( ( ~ ! [SY2393: $i] :
                ( ~ ( ~ ( ! [SY2394: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ SY2394 ) @ SV261 )
                        | ~ ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ ( sK18_SY2050 @ SY2393 @ SV261 ) ) @ SV261 )
                        | ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) ) )
                | ( SY2393
                  = ( relation_dom @ SV261 ) ) )
          | ~ ! [SY2395: $i] :
                ( ( SY2395
                 != ( relation_dom @ SV261 ) )
                | ~ ( ~ ! [SY2396: $i] :
                          ( ! [SY2397: $i] :
                              ~ ( in @ ( ordered_pair @ SY2396 @ SY2397 ) @ SV261 )
                          | ( in @ SY2396 @ SY2395 ) )
                    | ~ ! [SY2398: $i] :
                          ( ~ ( in @ SY2398 @ SY2395 )
                          | ( in @ ( ordered_pair @ SY2398 @ ( sK16_D @ SY2398 @ SY2395 @ SV261 ) ) @ SV261 ) ) ) ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1662]) ).

thf(1734,plain,
    ! [SV262: $i] :
      ( ( ! [SY2399: $i,SY2400: $i] :
            ( ~ ( in @ SV262 @ SY2400 )
            | ~ ( in @ SY2399 @ SY2400 )
            | ( subset @ ( unordered_pair @ SV262 @ SY2399 ) @ SY2400 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1663]) ).

thf(1735,plain,
    ! [SV262: $i] :
      ( ( ~ ( ~ ! [SY2401: $i,SY2402: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2401 ) @ SY2402 )
                  | ( in @ SV262 @ SY2402 ) )
            | ~ ! [SY2403: $i,SY2404: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2403 ) @ SY2404 )
                  | ( in @ SY2403 @ SY2404 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1664]) ).

thf(1736,plain,
    ! [SV312: $i] :
      ( ( ! [SY2517: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SY2517 @ SV312 ) @ SY2517 )
                    | ~ ( subset @ ( sK28_C @ SY2517 @ SV312 ) @ SV312 ) )
                | ~ ( ( in @ ( sK28_C @ SY2517 @ SV312 ) @ SY2517 )
                    | ( subset @ ( sK28_C @ SY2517 @ SV312 ) @ SV312 ) ) )
            | ( SY2517
              = ( powerset @ SV312 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1665]) ).

thf(1737,plain,
    ! [SV313: $i] :
      ( ( ! [SY2518: $i] :
            ( ( SY2518
             != ( powerset @ SV313 ) )
            | ~ ( ~ ! [SY2519: $i] :
                      ( ~ ( in @ SY2519 @ SY2518 )
                      | ( subset @ SY2519 @ SV313 ) )
                | ~ ! [SY2520: $i] :
                      ( ~ ( subset @ SY2520 @ SV313 )
                      | ( in @ SY2520 @ SY2518 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1666]) ).

thf(1738,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK31_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)],[1667]) ).

thf(1739,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)],[1668]) ).

thf(1740,plain,
    ! [SV263: $i] :
      ( ( ! [SY2405: $i,SY2406: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                          | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                           != SV263 ) )
                      | ~ ( ~ ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                          | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                           != SY2405 ) ) )
                | ~ ( ( in @ ( sK27_D @ SY2406 @ SY2405 @ SV263 ) @ SY2406 )
                    | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                      = SV263 )
                    | ( ( sK27_D @ SY2406 @ SY2405 @ SV263 )
                      = SY2405 ) ) )
            | ( SY2406
              = ( unordered_pair @ SV263 @ SY2405 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1669]) ).

thf(1741,plain,
    ! [SV263: $i] :
      ( ( ! [SY2407: $i,SY2408: $i] :
            ( ( SY2408
             != ( unordered_pair @ SV263 @ SY2407 ) )
            | ~ ( ~ ! [SY2409: $i] :
                      ( ~ ( in @ SY2409 @ SY2408 )
                      | ( SY2409 = SV263 )
                      | ( SY2409 = SY2407 ) )
                | ~ ~ ( ~ ! [SY2410: $i] :
                            ( ( SY2410 != SV263 )
                            | ( in @ SY2410 @ SY2408 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY2407 )
                            | ( in @ SX3 @ SY2408 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1670]) ).

thf(1742,plain,
    ! [SV314: $i] :
      ( ( ! [SY2521: $i] :
            ( ~ ( in @ SV314 @ SY2521 )
            | ( subset @ ( singleton @ SV314 ) @ SY2521 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1671]) ).

thf(1743,plain,
    ! [SV315: $i] :
      ( ( ! [SY2522: $i] :
            ( ~ ( subset @ ( singleton @ SV315 ) @ SY2522 )
            | ( in @ SV315 @ SY2522 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1672]) ).

thf(1744,plain,
    ! [SV264: $i] :
      ( ( ! [SY2412: $i,SY2413: $i] :
            ( ~ ( relation @ SY2413 )
            | ~ ( in @ ( ordered_pair @ SV264 @ SY2412 ) @ SY2413 )
            | ( in @ SV264 @ ( relation_dom @ SY2413 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1673]) ).

thf(1745,plain,
    ! [SV264: $i] :
      ( ( ! [SY2414: $i,SY2415: $i] :
            ( ~ ( relation @ SY2415 )
            | ~ ( in @ ( ordered_pair @ SV264 @ SY2414 ) @ SY2415 )
            | ( in @ SY2414 @ ( relation_rng @ SY2415 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1674]) ).

thf(1746,plain,
    ! [SV316: $i] :
      ( ( ! [SY2523: $i] :
            ( ~ ( in @ SV316 @ SY2523 )
            | ( subset @ ( singleton @ SV316 ) @ SY2523 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1675]) ).

thf(1747,plain,
    ! [SV317: $i] :
      ( ( ! [SY2524: $i] :
            ( ~ ( subset @ ( singleton @ SV317 ) @ SY2524 )
            | ( in @ SV317 @ SY2524 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1676]) ).

thf(1748,plain,
    ! [SV265: $i] :
      ( ( ( ~ ! [SY2416: $i] :
                ( ~ ( ~ ( ! [SY2417: $i] :
                            ~ ( in @ ( ordered_pair @ SY2417 @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                        | ~ ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2416 @ SV265 ) @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                        | ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) ) )
                | ( SY2416
                  = ( relation_rng @ SV265 ) ) )
          | ~ ! [SY2418: $i] :
                ( ( SY2418
                 != ( relation_rng @ SV265 ) )
                | ~ ( ~ ! [SY2419: $i] :
                          ( ! [SY2420: $i] :
                              ~ ( in @ ( ordered_pair @ SY2420 @ SY2419 ) @ SV265 )
                          | ( in @ SY2419 @ SY2418 ) )
                    | ~ ! [SY2421: $i] :
                          ( ~ ( in @ SY2421 @ SY2418 )
                          | ( in @ ( ordered_pair @ ( sK9_D @ SY2421 @ SY2418 @ SV265 ) @ SY2421 ) @ SV265 ) ) ) ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1677]) ).

thf(1749,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
              | ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) )
          | ~ ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
              | ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) ) )
        = $false )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1678]) ).

thf(1750,plain,
    ! [SV267: $i] :
      ( ( ! [SY2423: $i] :
            ( ~ ( subset @ SY2423 @ ( sK4_B @ SV267 ) )
            | ( are_equipotent @ SY2423 @ ( sK4_B @ SV267 ) )
            | ( in @ SY2423 @ ( sK4_B @ SV267 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1679]) ).

thf(1751,plain,
    ! [SV267: $i] :
      ( ( ~ ( ~ ! [SY2424: $i] :
                  ( ~ ( ~ ! [SY2425: $i] :
                            ( ~ ( subset @ SY2425 @ SY2424 )
                            | ( in @ SY2425 @ ( sK5_SY2040 @ SY2424 @ SV267 ) ) )
                      | ~ ( in @ ( sK5_SY2040 @ SY2424 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
                  | ~ ( in @ SY2424 @ ( sK4_B @ SV267 ) ) )
            | ~ ~ ( ~ ! [SY2426: $i,SY2427: $i] :
                        ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
                        | ~ ( subset @ SY2427 @ SY2426 )
                        | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) )
                  | ~ ( in @ SV267 @ ( sK4_B @ SV267 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1680]) ).

thf(1752,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ~ ! [SY2486: $i,SY2487: $i] :
              ( ~ ( in @ SV268 @ SY2486 )
              | ~ ( in @ SV297 @ SY2487 )
              | ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2486 @ SY2487 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1681]) ).

thf(1753,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ~ ~ ( ~ ! [SY2488: $i] :
                    ( ! [SY2489: $i] :
                        ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2488 @ SY2489 ) )
                    | ( in @ SV268 @ SY2488 ) )
              | ~ ! [SY2490: $i,SY2491: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2490 @ SY2491 ) )
                    | ( in @ SV297 @ SY2491 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1681]) ).

thf(1754,plain,
    ! [SV318: $i] :
      ( ( ~ ( ~ ! [SY2525: $i,SY2526: $i] :
                  ( ( sK36_B @ SV318 )
                 != ( ordered_pair @ SY2525 @ SY2526 ) )
            | ~ ( in @ ( sK36_B @ SV318 ) @ SV318 ) )
        | ( relation @ SV318 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1682]) ).

thf(1755,plain,
    ! [SV319: $i] :
      ( ( ~ ( relation @ SV319 )
        | ! [SY2527: $i] :
            ( ( SY2527
              = ( ordered_pair @ ( sK34_C @ SY2527 @ SV319 ) @ ( sK35_SY2059 @ SY2527 @ SV319 ) ) )
            | ~ ( in @ SY2527 @ SV319 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1683]) ).

thf(1756,plain,
    ! [SV320: $i] :
      ( ( ! [SY2528: $i] :
            ( ( ( set_difference @ SV320 @ ( singleton @ SY2528 ) )
             != SV320 )
            | ~ ( in @ SY2528 @ SV320 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1684]) ).

thf(1757,plain,
    ! [SV321: $i] :
      ( ( ! [SY2529: $i] :
            ( ( in @ SY2529 @ SV321 )
            | ( ( set_difference @ SV321 @ ( singleton @ SY2529 ) )
              = SV321 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1685]) ).

thf(1758,plain,
    ! [SV298: $i,SV269: $i] :
      ( ( ~ ! [SY2492: $i] :
              ( ! [SY2493: $i] :
                  ( ( ordered_pair @ SV269 @ SV298 )
                 != ( ordered_pair @ SY2492 @ SY2493 ) )
              | ( SV269 = SY2492 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1686]) ).

thf(1759,plain,
    ! [SV298: $i,SV269: $i] :
      ( ( ~ ! [SY2494: $i,SY2495: $i] :
              ( ( ( ordered_pair @ SV269 @ SV298 )
               != ( ordered_pair @ SY2494 @ SY2495 ) )
              | ( SV298 = SY2495 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1686]) ).

thf(1760,plain,
    ! [SV270: $i] :
      ( ( ! [SY2440: $i,SY2441: $i] :
            ( ~ ( ~ ( ! [SY2442: $i,SY2443: $i] :
                        ( ~ ( in @ SY2442 @ SV270 )
                        | ~ ( in @ SY2443 @ SY2440 )
                        | ( ( sK23_D @ SY2441 @ SY2440 @ SV270 )
                         != ( ordered_pair @ SY2442 @ SY2443 ) ) )
                    | ~ ( in @ ( sK23_D @ SY2441 @ SY2440 @ SV270 ) @ SY2441 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2441 @ SY2440 @ SV270 ) @ SV270 )
                              | ~ ( in @ ( sK25_SY2056 @ SY2441 @ SY2440 @ SV270 ) @ SY2440 ) )
                        | ( ( sK23_D @ SY2441 @ SY2440 @ SV270 )
                         != ( ordered_pair @ ( sK24_SY2054 @ SY2441 @ SY2440 @ SV270 ) @ ( sK25_SY2056 @ SY2441 @ SY2440 @ SV270 ) ) ) )
                    | ( in @ ( sK23_D @ SY2441 @ SY2440 @ SV270 ) @ SY2441 ) ) )
            | ( SY2441
              = ( cartesian_product2 @ SV270 @ SY2440 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1689]) ).

thf(1761,plain,
    ! [SV270: $i] :
      ( ( ! [SY2444: $i,SY2445: $i] :
            ( ( SY2445
             != ( cartesian_product2 @ SV270 @ SY2444 ) )
            | ~ ( ~ ! [SY2446: $i] :
                      ( ! [SY2447: $i,SY2448: $i] :
                          ( ~ ( in @ SY2447 @ SV270 )
                          | ~ ( in @ SY2448 @ SY2444 )
                          | ( SY2446
                           != ( ordered_pair @ SY2447 @ SY2448 ) ) )
                      | ( in @ SY2446 @ SY2445 ) )
                | ~ ! [SY2449: $i] :
                      ( ~ ( in @ SY2449 @ SY2445 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ SV270 )
                                | ~ ( in @ ( sK22_SY2051 @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ SY2444 ) )
                          | ( SY2449
                           != ( ordered_pair @ ( sK21_E @ SY2449 @ SY2445 @ SY2444 @ SV270 ) @ ( sK22_SY2051 @ SY2449 @ SY2445 @ SY2444 @ SV270 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1690]) ).

thf(1762,plain,
    ! [SV271: $i] :
      ( ( ! [SY2450: $i,SY2451: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                          | ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SV271 ) )
                      | ~ ( ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                          | ~ ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2450 ) ) )
                | ~ ( ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2451 )
                    | ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SV271 )
                    | ( in @ ( sK26_D @ SY2451 @ SY2450 @ SV271 ) @ SY2450 ) ) )
            | ( SY2451
              = ( set_union2 @ SV271 @ SY2450 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1691]) ).

thf(1763,plain,
    ! [SV271: $i] :
      ( ( ! [SY2452: $i,SY2453: $i] :
            ( ( SY2453
             != ( set_union2 @ SV271 @ SY2452 ) )
            | ~ ( ~ ! [SY2454: $i] :
                      ( ~ ( in @ SY2454 @ SY2453 )
                      | ( in @ SY2454 @ SV271 )
                      | ( in @ SY2454 @ SY2452 ) )
                | ~ ~ ( ~ ! [SY2455: $i] :
                            ( ~ ( in @ SY2455 @ SV271 )
                            | ( in @ SY2455 @ SY2453 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY2452 )
                            | ( in @ SX3 @ SY2453 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1692]) ).

thf(1764,plain,
    ! [SV272: $i] :
      ( ( ! [SY2457: $i] :
            ( ~ ( subset @ SY2457 @ ( sK39_B @ SV272 ) )
            | ( are_equipotent @ SY2457 @ ( sK39_B @ SV272 ) )
            | ( in @ SY2457 @ ( sK39_B @ SV272 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1693]) ).

thf(1765,plain,
    ! [SV272: $i] :
      ( ( ~ ( ~ ! [SY2458: $i] :
                  ( ~ ( in @ SY2458 @ ( sK39_B @ SV272 ) )
                  | ( in @ ( powerset @ SY2458 ) @ ( sK39_B @ SV272 ) ) )
            | ~ ~ ( ~ ! [SY2459: $i,SY2460: $i] :
                        ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
                        | ~ ( subset @ SY2460 @ SY2459 )
                        | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) )
                  | ~ ( in @ SV272 @ ( sK39_B @ SV272 ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1694]) ).

thf(1766,plain,
    ! [SV273: $i] :
      ( ( ( ~ ! [SY2461: $i] :
                ( ~ ( relation @ SY2461 )
                | ~ ( subset @ SV273 @ SY2461 )
                | ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SY2461 ) ) )
          | ~ ! [SY2462: $i] :
                ( ~ ( relation @ SY2462 )
                | ~ ( subset @ SV273 @ SY2462 )
                | ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SY2462 ) ) ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1695]) ).

thf(1767,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ~ ! [SY2496: $i,SY2497: $i] :
              ( ~ ( in @ SV274 @ SY2496 )
              | ~ ( in @ SV299 @ SY2497 )
              | ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2496 @ SY2497 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1696]) ).

thf(1768,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ~ ~ ( ~ ! [SY2498: $i] :
                    ( ! [SY2499: $i] :
                        ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2498 @ SY2499 ) )
                    | ( in @ SV274 @ SY2498 ) )
              | ~ ! [SY2500: $i,SY2501: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2500 @ SY2501 ) )
                    | ( in @ SV299 @ SY2501 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1696]) ).

thf(1769,plain,
    ! [SV322: $i] :
      ( ( ! [SY2530: $i] :
            ( ( disjoint @ SV322 @ SY2530 )
            | ( in @ ( sK37_C @ SY2530 @ SV322 ) @ ( set_intersection2 @ SV322 @ SY2530 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1697]) ).

thf(1770,plain,
    ! [SV323: $i] :
      ( ( ! [SY2531: $i] :
            ( ! [SY2532: $i] :
                ~ ( in @ SY2532 @ ( set_intersection2 @ SV323 @ SY2531 ) )
            | ~ ( disjoint @ SV323 @ SY2531 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1698]) ).

thf(1771,plain,
    ! [SV324: $i] :
      ( ( ! [SY2533: $i] :
            ( ~ ( ~ ( in @ ( sK20_C @ SY2533 @ SV324 ) @ SV324 )
                | ~ ~ ( in @ ( sK20_C @ SY2533 @ SV324 ) @ SY2533 ) )
            | ( subset @ SV324 @ SY2533 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1699]) ).

thf(1772,plain,
    ! [SV325: $i] :
      ( ( ! [SY2534: $i] :
            ( ~ ( subset @ SV325 @ SY2534 )
            | ! [SY2535: $i] :
                ( ~ ( in @ SY2535 @ SV325 )
                | ( in @ SY2535 @ SY2534 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1700]) ).

thf(1773,plain,
    ! [SV275: $i] :
      ( ( ! [SY2470: $i,SY2471: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SV275 )
                    | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2470 )
                    | ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) )
                | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SV275 )
                          | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) )
                      | ~ ( ~ ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2470 )
                          | ( in @ ( sK12_D @ SY2471 @ SY2470 @ SV275 ) @ SY2471 ) ) ) )
            | ( SY2471
              = ( set_difference @ SV275 @ SY2470 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1701]) ).

thf(1774,plain,
    ! [SV275: $i] :
      ( ( ! [SY2472: $i,SY2473: $i] :
            ( ( SY2473
             != ( set_difference @ SV275 @ SY2472 ) )
            | ~ ( ~ ! [SY2474: $i] :
                      ( ~ ( in @ SY2474 @ SV275 )
                      | ( in @ SY2474 @ SY2472 )
                      | ( in @ SY2474 @ SY2473 ) )
                | ~ ~ ( ~ ! [SY2475: $i] :
                            ( ~ ( in @ SY2475 @ SY2473 )
                            | ( in @ SY2475 @ SV275 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY2473 )
                            | ~ ( in @ SX3 @ SY2472 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1702]) ).

thf(1775,plain,
    ! [SV277: $i,SV238: $i] :
      ( ( ( in @ SV238 @ SV277 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV238 ) @ SV277 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1704]) ).

thf(1776,plain,
    ! [SV240: $i,SV279: $i,SV326: $i] :
      ( ( ( ~ ( in @ SV326 @ SV279 )
          | ( in @ SV326 @ SV240 ) )
        = $true )
      | ( ( element @ SV279 @ ( powerset @ SV240 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1705]) ).

thf(1777,plain,
    ! [SV280: $i,SV241: $i,SV327: $i] :
      ( ( ( ( in @ SV327 @ SV241 )
          | ( subset @ SV241 @ ( set_difference @ SV280 @ ( singleton @ SV327 ) ) ) )
        = $true )
      | ( ( subset @ SV241 @ SV280 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1706]) ).

thf(1778,plain,
    ! [SV245: $i,SV300: $i] :
      ( ( ( element @ SV300 @ ( powerset @ SV245 ) )
        = $false )
      | ( ( ! [SY2502: $i] :
              ( ~ ( element @ SY2502 @ SV245 )
              | ( in @ SY2502 @ SV300 )
              | ( in @ SY2502 @ ( subset_complement @ SV245 @ SV300 ) ) ) )
        = $true )
      | ( ( SV245 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1709]) ).

thf(1779,plain,
    ! [SV283: $i,SV246: $i,SV301: $i] :
      ( ( ( element @ SV301 @ ( powerset @ SV246 ) )
        = $false )
      | ( ( ~ ( in @ SV283 @ ( subset_complement @ SV246 @ SV301 ) )
          | ~ ( in @ SV283 @ SV301 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1710]) ).

thf(1780,plain,
    ! [SV248: $i,SV285: $i] :
      ( ( ( in @ SV285 @ SV248 )
        = $false )
      | ( ( in @ SV248 @ SV285 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1712]) ).

thf(1781,plain,
    ! [SV288: $i,SV252: $i] :
      ( ( ( relation @ SV252 )
        = $false )
      | ( ( ~ ( relation @ SV288 ) )
        = $true )
      | ( ( relation @ ( set_union2 @ SV252 @ SV288 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1713]) ).

thf(1782,plain,
    ! [SV254: $i,SV290: $i] :
      ( ( ( empty @ SV290 )
        = $true )
      | ( ( in @ SV254 @ SV290 )
        = $true )
      | ( ( element @ SV254 @ SV290 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1715]) ).

thf(1783,plain,
    ! [SV255: $i,SV302: $i,SV291: $i] :
      ( ( ( ~ ( element @ SV291 @ ( powerset @ SV302 ) ) )
        = $true )
      | ( ( ~ ( in @ SV255 @ SV291 ) )
        = $true )
      | ( ( element @ SV255 @ SV302 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1716]) ).

thf(1784,plain,
    ! [SV256: $i,SV303: $i,SV292: $i] :
      ( ( ( ~ ( element @ SV292 @ ( powerset @ SV303 ) ) )
        = $true )
      | ( ( ~ ( in @ SV256 @ SV292 ) )
        = $true )
      | ( ( ~ ( empty @ SV303 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1717]) ).

thf(1785,plain,
    ! [SV293: $i,SV257: $i] :
      ( ( ( in @ SV257 @ SV293 )
        = $false )
      | ( ( empty @ SV293 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1718]) ).

thf(1786,plain,
    ! [SV304: $i] :
      ( ( ( in @ ( sK29_B @ SV304 ) @ SV304 )
        = $true )
      | ( ( SV304 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1719]) ).

thf(1787,plain,
    ! [SV305: $i] :
      ( ( ( ( SV305 != empty_set ) )
        = $true )
      | ( ( ! [SY2503: $i] :
              ~ ( in @ SY2503 @ SV305 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1720]) ).

thf(1788,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( in @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1721]) ).

thf(1789,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( in @ SX1 @ SX0 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1721]) ).

thf(1790,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( element @ SX1 @ SX0 )
                | ( empty @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1722]) ).

thf(1791,plain,
    ( ( ~ ! [SX0: $i] :
            ( ~ ( empty @ SX0 )
            | ! [SX1: $i] :
                ( ~ ( empty @ SX1 )
                | ( element @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1722]) ).

thf(1792,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ~ ( ~ ( ( ( sK30_C @ SV328 @ SV306 )
                 != SV306 )
                | ~ ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) )
            | ~ ( ( ( sK30_C @ SV328 @ SV306 )
                  = SV306 )
                | ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) ) )
        | ( SV328
          = ( singleton @ SV306 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1723]) ).

thf(1793,plain,
    ! [SV307: $i,SV329: $i] :
      ( ( ( SV329
         != ( singleton @ SV307 ) )
        | ~ ( ~ ! [SY2536: $i] :
                  ( ( SY2536 != SV307 )
                  | ( in @ SY2536 @ SV329 ) )
            | ~ ! [SY2537: $i] :
                  ( ~ ( in @ SY2537 @ SV329 )
                  | ( SY2537 = SV307 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1724]) ).

thf(1794,plain,
    ! [SV330: $i,SV308: $i] :
      ( ( ( disjoint @ SV308 @ SV330 )
        | ~ ( ~ ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV308 )
            | ~ ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV330 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1725]) ).

thf(1795,plain,
    ! [SV331: $i,SV309: $i] :
      ( ( ! [SY2538: $i] :
            ( ~ ( in @ SY2538 @ SV309 )
            | ~ ( in @ SY2538 @ SV331 ) )
        | ~ ( disjoint @ SV309 @ SV331 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1726]) ).

thf(1796,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ~ ( ~ ( ! [SY2539: $i] :
                    ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SY2539 )
                    | ~ ( in @ SY2539 @ SV310 ) )
                | ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
            | ~ ( ~ ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ ( sK15_SY2048 @ SV332 @ SV310 ) )
                    | ~ ( in @ ( sK15_SY2048 @ SV332 @ SV310 ) @ SV310 ) )
                | ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) ) )
        | ( SV332
          = ( union @ SV310 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1727]) ).

thf(1797,plain,
    ! [SV311: $i,SV333: $i] :
      ( ( ( SV333
         != ( union @ SV311 ) )
        | ~ ( ~ ! [SY2540: $i] :
                  ( ! [SY2515: $i] :
                      ( ~ ( in @ SY2540 @ SY2515 )
                      | ~ ( in @ SY2515 @ SV311 ) )
                  | ( in @ SY2540 @ SV333 ) )
            | ~ ! [SY2542: $i] :
                  ( ~ ( in @ SY2542 @ SV333 )
                  | ~ ( ~ ( in @ SY2542 @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) )
                      | ~ ( in @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) @ SV311 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1728]) ).

thf(1798,plain,
    ! [SV294: $i,SV258: $i] :
      ( ( ( ~ ! [SY2482: $i] :
                ( ~ ( element @ SY2482 @ ( powerset @ ( powerset @ SV258 ) ) )
                | ~ ( ~ ( element @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
                    | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                              | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) )
                          | ~ ( ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                              | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
                | ( SY2482
                  = ( complements_of_subsets @ SV258 @ SV294 ) ) )
          | ~ ! [SY2483: $i] :
                ( ~ ( element @ SY2483 @ ( powerset @ ( powerset @ SV258 ) ) )
                | ( SY2483
                 != ( complements_of_subsets @ SV258 @ SV294 ) )
                | ~ ( ~ ! [SY2484: $i] :
                          ( ~ ( element @ SY2484 @ ( powerset @ SV258 ) )
                          | ~ ( in @ SY2484 @ SY2483 )
                          | ( in @ ( subset_complement @ SV258 @ SY2484 ) @ SV294 ) )
                    | ~ ! [SY2485: $i] :
                          ( ~ ( element @ SY2485 @ ( powerset @ SV258 ) )
                          | ~ ( in @ ( subset_complement @ SV258 @ SY2485 ) @ SV294 )
                          | ( in @ SY2485 @ SY2483 ) ) ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1729]) ).

thf(1799,plain,
    ! [SV259: $i,SV295: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV259 ) )
        = $false )
      | ( ( element @ SV259 @ ( powerset @ SV295 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1730]) ).

thf(1800,plain,
    ! [SV259: $i,SV295: $i] :
      ( ( ( ~ ~ ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV295 ) )
        = $false )
      | ( ( element @ SV259 @ ( powerset @ SV295 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1730]) ).

thf(1801,plain,
    ! [SV260: $i,SV334: $i] :
      ( ( ! [SY2543: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SY2543 @ SV334 @ SV260 ) @ SV260 )
                    | ~ ( in @ ( sK19_D @ SY2543 @ SV334 @ SV260 ) @ SV334 )
                    | ~ ( in @ ( sK19_D @ SY2543 @ SV334 @ SV260 ) @ SY2543 ) )
                | ~ ~ ( ~ ( ( in @ ( sK19_D @ SY2543 @ SV334 @ SV260 ) @ SV260 )
                          | ( in @ ( sK19_D @ SY2543 @ SV334 @ SV260 ) @ SY2543 ) )
                      | ~ ( ( in @ ( sK19_D @ SY2543 @ SV334 @ SV260 ) @ SV334 )
                          | ( in @ ( sK19_D @ SY2543 @ SV334 @ SV260 ) @ SY2543 ) ) ) )
            | ( SY2543
              = ( set_intersection2 @ SV260 @ SV334 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1731]) ).

thf(1802,plain,
    ! [SV335: $i,SV260: $i] :
      ( ( ! [SY2544: $i] :
            ( ( SY2544
             != ( set_intersection2 @ SV260 @ SV335 ) )
            | ~ ( ~ ! [SY2545: $i] :
                      ( ~ ( in @ SY2545 @ SV260 )
                      | ~ ( in @ SY2545 @ SV335 )
                      | ( in @ SY2545 @ SY2544 ) )
                | ~ ~ ( ~ ! [SY2391: $i] :
                            ( ~ ( in @ SY2391 @ SY2544 )
                            | ( in @ SY2391 @ SV260 ) )
                      | ~ ! [SY2547: $i] :
                            ( ~ ( in @ SY2547 @ SY2544 )
                            | ( in @ SY2547 @ SV335 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1732]) ).

thf(1803,plain,
    ! [SV261: $i] :
      ( ( ( ~ ! [SY2393: $i] :
                ( ~ ( ~ ( ! [SY2394: $i] :
                            ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ SY2394 ) @ SV261 )
                        | ~ ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ ( sK18_SY2050 @ SY2393 @ SV261 ) ) @ SV261 )
                        | ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) ) )
                | ( SY2393
                  = ( relation_dom @ SV261 ) ) ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1733]) ).

thf(1804,plain,
    ! [SV261: $i] :
      ( ( ( ~ ! [SY2395: $i] :
                ( ( SY2395
                 != ( relation_dom @ SV261 ) )
                | ~ ( ~ ! [SY2396: $i] :
                          ( ! [SY2397: $i] :
                              ~ ( in @ ( ordered_pair @ SY2396 @ SY2397 ) @ SV261 )
                          | ( in @ SY2396 @ SY2395 ) )
                    | ~ ! [SY2398: $i] :
                          ( ~ ( in @ SY2398 @ SY2395 )
                          | ( in @ ( ordered_pair @ SY2398 @ ( sK16_D @ SY2398 @ SY2395 @ SV261 ) ) @ SV261 ) ) ) ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1733]) ).

thf(1805,plain,
    ! [SV336: $i,SV262: $i] :
      ( ( ! [SY2548: $i] :
            ( ~ ( in @ SV262 @ SY2548 )
            | ~ ( in @ SV336 @ SY2548 )
            | ( subset @ ( unordered_pair @ SV262 @ SV336 ) @ SY2548 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1734]) ).

thf(1806,plain,
    ! [SV262: $i] :
      ( ( ~ ! [SY2401: $i,SY2402: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2401 ) @ SY2402 )
              | ( in @ SV262 @ SY2402 ) )
        | ~ ! [SY2403: $i,SY2404: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2403 ) @ SY2404 )
              | ( in @ SY2403 @ SY2404 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1735]) ).

thf(1807,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
                | ~ ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) )
            | ~ ( ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
                | ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) ) )
        | ( SV337
          = ( powerset @ SV312 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1736]) ).

thf(1808,plain,
    ! [SV313: $i,SV338: $i] :
      ( ( ( SV338
         != ( powerset @ SV313 ) )
        | ~ ( ~ ! [SY2549: $i] :
                  ( ~ ( in @ SY2549 @ SV338 )
                  | ( subset @ SY2549 @ SV313 ) )
            | ~ ! [SY2550: $i] :
                  ( ~ ( subset @ SY2550 @ SV313 )
                  | ( in @ SY2550 @ SV338 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1737]) ).

thf(1809,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                        | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ! [SX2: $i] :
                            ( ~ ( in @ SX2 @ SX0 )
                            | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                        | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1738]) ).

thf(1810,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 = empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                              | ~ ~ ( in @ SX2 @ ( sK31_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)],[1738]) ).

thf(1811,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1
                 != ( set_meet @ SX0 ) )
                | ( SX1 = empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1739]) ).

thf(1812,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( SX1 != empty_set )
                | ( SX1
                  = ( set_meet @ SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1739]) ).

thf(1813,plain,
    ! [SV263: $i,SV339: $i] :
      ( ( ! [SY2551: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SY2551 @ SV339 @ SV263 ) @ SY2551 )
                          | ( ( sK27_D @ SY2551 @ SV339 @ SV263 )
                           != SV263 ) )
                      | ~ ( ~ ( in @ ( sK27_D @ SY2551 @ SV339 @ SV263 ) @ SY2551 )
                          | ( ( sK27_D @ SY2551 @ SV339 @ SV263 )
                           != SV339 ) ) )
                | ~ ( ( in @ ( sK27_D @ SY2551 @ SV339 @ SV263 ) @ SY2551 )
                    | ( ( sK27_D @ SY2551 @ SV339 @ SV263 )
                      = SV263 )
                    | ( ( sK27_D @ SY2551 @ SV339 @ SV263 )
                      = SV339 ) ) )
            | ( SY2551
              = ( unordered_pair @ SV263 @ SV339 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1740]) ).

thf(1814,plain,
    ! [SV340: $i,SV263: $i] :
      ( ( ! [SY2552: $i] :
            ( ( SY2552
             != ( unordered_pair @ SV263 @ SV340 ) )
            | ~ ( ~ ! [SY2553: $i] :
                      ( ~ ( in @ SY2553 @ SY2552 )
                      | ( SY2553 = SV263 )
                      | ( SY2553 = SV340 ) )
                | ~ ~ ( ~ ! [SY2410: $i] :
                            ( ( SY2410 != SV263 )
                            | ( in @ SY2410 @ SY2552 ) )
                      | ~ ! [SY2555: $i] :
                            ( ( SY2555 != SV340 )
                            | ( in @ SY2555 @ SY2552 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1741]) ).

thf(1815,plain,
    ! [SV341: $i,SV314: $i] :
      ( ( ~ ( in @ SV314 @ SV341 )
        | ( subset @ ( singleton @ SV314 ) @ SV341 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1742]) ).

thf(1816,plain,
    ! [SV342: $i,SV315: $i] :
      ( ( ~ ( subset @ ( singleton @ SV315 ) @ SV342 )
        | ( in @ SV315 @ SV342 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1743]) ).

thf(1817,plain,
    ! [SV343: $i,SV264: $i] :
      ( ( ! [SY2556: $i] :
            ( ~ ( relation @ SY2556 )
            | ~ ( in @ ( ordered_pair @ SV264 @ SV343 ) @ SY2556 )
            | ( in @ SV264 @ ( relation_dom @ SY2556 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1744]) ).

thf(1818,plain,
    ! [SV344: $i,SV264: $i] :
      ( ( ! [SY2557: $i] :
            ( ~ ( relation @ SY2557 )
            | ~ ( in @ ( ordered_pair @ SV264 @ SV344 ) @ SY2557 )
            | ( in @ SV344 @ ( relation_rng @ SY2557 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1745]) ).

thf(1819,plain,
    ! [SV345: $i,SV316: $i] :
      ( ( ~ ( in @ SV316 @ SV345 )
        | ( subset @ ( singleton @ SV316 ) @ SV345 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1746]) ).

thf(1820,plain,
    ! [SV346: $i,SV317: $i] :
      ( ( ~ ( subset @ ( singleton @ SV317 ) @ SV346 )
        | ( in @ SV317 @ SV346 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1747]) ).

thf(1821,plain,
    ! [SV265: $i] :
      ( ( ( ~ ! [SY2416: $i] :
                ( ~ ( ~ ( ! [SY2417: $i] :
                            ~ ( in @ ( ordered_pair @ SY2417 @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                        | ~ ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) )
                    | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2416 @ SV265 ) @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                        | ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) ) )
                | ( SY2416
                  = ( relation_rng @ SV265 ) ) ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1748]) ).

thf(1822,plain,
    ! [SV265: $i] :
      ( ( ( ~ ! [SY2418: $i] :
                ( ( SY2418
                 != ( relation_rng @ SV265 ) )
                | ~ ( ~ ! [SY2419: $i] :
                          ( ! [SY2420: $i] :
                              ~ ( in @ ( ordered_pair @ SY2420 @ SY2419 ) @ SV265 )
                          | ( in @ SY2419 @ SY2418 ) )
                    | ~ ! [SY2421: $i] :
                          ( ~ ( in @ SY2421 @ SY2418 )
                          | ( in @ ( ordered_pair @ ( sK9_D @ SY2421 @ SY2418 @ SV265 ) @ SY2421 ) @ SV265 ) ) ) ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1748]) ).

thf(1823,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
              | ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) ) )
        = $false )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1749]) ).

thf(1824,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( ~ ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
              | ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) ) )
        = $false )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1749]) ).

thf(1825,plain,
    ! [SV267: $i,SV347: $i] :
      ( ( ~ ( subset @ SV347 @ ( sK4_B @ SV267 ) )
        | ( are_equipotent @ SV347 @ ( sK4_B @ SV267 ) )
        | ( in @ SV347 @ ( sK4_B @ SV267 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1750]) ).

thf(1826,plain,
    ! [SV267: $i] :
      ( ( ~ ! [SY2424: $i] :
              ( ~ ( ~ ! [SY2425: $i] :
                        ( ~ ( subset @ SY2425 @ SY2424 )
                        | ( in @ SY2425 @ ( sK5_SY2040 @ SY2424 @ SV267 ) ) )
                  | ~ ( in @ ( sK5_SY2040 @ SY2424 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
              | ~ ( in @ SY2424 @ ( sK4_B @ SV267 ) ) )
        | ~ ~ ( ~ ! [SY2426: $i,SY2427: $i] :
                    ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
                    | ~ ( subset @ SY2427 @ SY2426 )
                    | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) )
              | ~ ( in @ SV267 @ ( sK4_B @ SV267 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1751]) ).

thf(1827,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ! [SY2486: $i,SY2487: $i] :
            ( ~ ( in @ SV268 @ SY2486 )
            | ~ ( in @ SV297 @ SY2487 )
            | ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2486 @ SY2487 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1752]) ).

thf(1828,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ~ ( ~ ! [SY2488: $i] :
                  ( ! [SY2489: $i] :
                      ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2488 @ SY2489 ) )
                  | ( in @ SV268 @ SY2488 ) )
            | ~ ! [SY2490: $i,SY2491: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2490 @ SY2491 ) )
                  | ( in @ SV297 @ SY2491 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1753]) ).

thf(1829,plain,
    ! [SV318: $i] :
      ( ( ( ~ ( ~ ! [SY2525: $i,SY2526: $i] :
                    ( ( sK36_B @ SV318 )
                   != ( ordered_pair @ SY2525 @ SY2526 ) )
              | ~ ( in @ ( sK36_B @ SV318 ) @ SV318 ) ) )
        = $true )
      | ( ( relation @ SV318 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1754]) ).

thf(1830,plain,
    ! [SV319: $i] :
      ( ( ( ~ ( relation @ SV319 ) )
        = $true )
      | ( ( ! [SY2527: $i] :
              ( ( SY2527
                = ( ordered_pair @ ( sK34_C @ SY2527 @ SV319 ) @ ( sK35_SY2059 @ SY2527 @ SV319 ) ) )
              | ~ ( in @ SY2527 @ SV319 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1755]) ).

thf(1831,plain,
    ! [SV348: $i,SV320: $i] :
      ( ( ( ( set_difference @ SV320 @ ( singleton @ SV348 ) )
         != SV320 )
        | ~ ( in @ SV348 @ SV320 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1756]) ).

thf(1832,plain,
    ! [SV321: $i,SV349: $i] :
      ( ( ( in @ SV349 @ SV321 )
        | ( ( set_difference @ SV321 @ ( singleton @ SV349 ) )
          = SV321 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1757]) ).

thf(1833,plain,
    ! [SV298: $i,SV269: $i] :
      ( ( ! [SY2492: $i] :
            ( ! [SY2493: $i] :
                ( ( ordered_pair @ SV269 @ SV298 )
               != ( ordered_pair @ SY2492 @ SY2493 ) )
            | ( SV269 = SY2492 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1758]) ).

thf(1834,plain,
    ! [SV298: $i,SV269: $i] :
      ( ( ! [SY2494: $i,SY2495: $i] :
            ( ( ( ordered_pair @ SV269 @ SV298 )
             != ( ordered_pair @ SY2494 @ SY2495 ) )
            | ( SV298 = SY2495 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1759]) ).

thf(1835,plain,
    ! [SV350: $i,SV270: $i] :
      ( ( ! [SY2558: $i] :
            ( ~ ( ~ ( ! [SY2559: $i,SY2560: $i] :
                        ( ~ ( in @ SY2559 @ SV270 )
                        | ~ ( in @ SY2560 @ SV350 )
                        | ( ( sK23_D @ SY2558 @ SV350 @ SV270 )
                         != ( ordered_pair @ SY2559 @ SY2560 ) ) )
                    | ~ ( in @ ( sK23_D @ SY2558 @ SV350 @ SV270 ) @ SY2558 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SY2558 @ SV350 @ SV270 ) @ SV270 )
                              | ~ ( in @ ( sK25_SY2056 @ SY2558 @ SV350 @ SV270 ) @ SV350 ) )
                        | ( ( sK23_D @ SY2558 @ SV350 @ SV270 )
                         != ( ordered_pair @ ( sK24_SY2054 @ SY2558 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SY2558 @ SV350 @ SV270 ) ) ) )
                    | ( in @ ( sK23_D @ SY2558 @ SV350 @ SV270 ) @ SY2558 ) ) )
            | ( SY2558
              = ( cartesian_product2 @ SV270 @ SV350 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1760]) ).

thf(1836,plain,
    ! [SV351: $i,SV270: $i] :
      ( ( ! [SY2561: $i] :
            ( ( SY2561
             != ( cartesian_product2 @ SV270 @ SV351 ) )
            | ~ ( ~ ! [SY2562: $i] :
                      ( ! [SY2563: $i,SY2564: $i] :
                          ( ~ ( in @ SY2563 @ SV270 )
                          | ~ ( in @ SY2564 @ SV351 )
                          | ( SY2562
                           != ( ordered_pair @ SY2563 @ SY2564 ) ) )
                      | ( in @ SY2562 @ SY2561 ) )
                | ~ ! [SY2565: $i] :
                      ( ~ ( in @ SY2565 @ SY2561 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2565 @ SY2561 @ SV351 @ SV270 ) @ SV270 )
                                | ~ ( in @ ( sK22_SY2051 @ SY2565 @ SY2561 @ SV351 @ SV270 ) @ SV351 ) )
                          | ( SY2565
                           != ( ordered_pair @ ( sK21_E @ SY2565 @ SY2561 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SY2565 @ SY2561 @ SV351 @ SV270 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1761]) ).

thf(1837,plain,
    ! [SV271: $i,SV352: $i] :
      ( ( ! [SY2566: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SY2566 @ SV352 @ SV271 ) @ SY2566 )
                          | ~ ( in @ ( sK26_D @ SY2566 @ SV352 @ SV271 ) @ SV271 ) )
                      | ~ ( ~ ( in @ ( sK26_D @ SY2566 @ SV352 @ SV271 ) @ SY2566 )
                          | ~ ( in @ ( sK26_D @ SY2566 @ SV352 @ SV271 ) @ SV352 ) ) )
                | ~ ( ( in @ ( sK26_D @ SY2566 @ SV352 @ SV271 ) @ SY2566 )
                    | ( in @ ( sK26_D @ SY2566 @ SV352 @ SV271 ) @ SV271 )
                    | ( in @ ( sK26_D @ SY2566 @ SV352 @ SV271 ) @ SV352 ) ) )
            | ( SY2566
              = ( set_union2 @ SV271 @ SV352 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1762]) ).

thf(1838,plain,
    ! [SV353: $i,SV271: $i] :
      ( ( ! [SY2567: $i] :
            ( ( SY2567
             != ( set_union2 @ SV271 @ SV353 ) )
            | ~ ( ~ ! [SY2568: $i] :
                      ( ~ ( in @ SY2568 @ SY2567 )
                      | ( in @ SY2568 @ SV271 )
                      | ( in @ SY2568 @ SV353 ) )
                | ~ ~ ( ~ ! [SY2455: $i] :
                            ( ~ ( in @ SY2455 @ SV271 )
                            | ( in @ SY2455 @ SY2567 ) )
                      | ~ ! [SY2570: $i] :
                            ( ~ ( in @ SY2570 @ SV353 )
                            | ( in @ SY2570 @ SY2567 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1763]) ).

thf(1839,plain,
    ! [SV272: $i,SV354: $i] :
      ( ( ~ ( subset @ SV354 @ ( sK39_B @ SV272 ) )
        | ( are_equipotent @ SV354 @ ( sK39_B @ SV272 ) )
        | ( in @ SV354 @ ( sK39_B @ SV272 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1764]) ).

thf(1840,plain,
    ! [SV272: $i] :
      ( ( ~ ! [SY2458: $i] :
              ( ~ ( in @ SY2458 @ ( sK39_B @ SV272 ) )
              | ( in @ ( powerset @ SY2458 ) @ ( sK39_B @ SV272 ) ) )
        | ~ ~ ( ~ ! [SY2459: $i,SY2460: $i] :
                    ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
                    | ~ ( subset @ SY2460 @ SY2459 )
                    | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) )
              | ~ ( in @ SV272 @ ( sK39_B @ SV272 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1765]) ).

thf(1841,plain,
    ! [SV273: $i] :
      ( ( ( ~ ! [SY2461: $i] :
                ( ~ ( relation @ SY2461 )
                | ~ ( subset @ SV273 @ SY2461 )
                | ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SY2461 ) ) ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1766]) ).

thf(1842,plain,
    ! [SV273: $i] :
      ( ( ( ~ ! [SY2462: $i] :
                ( ~ ( relation @ SY2462 )
                | ~ ( subset @ SV273 @ SY2462 )
                | ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SY2462 ) ) ) )
        = $false )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1766]) ).

thf(1843,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ! [SY2496: $i,SY2497: $i] :
            ( ~ ( in @ SV274 @ SY2496 )
            | ~ ( in @ SV299 @ SY2497 )
            | ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2496 @ SY2497 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1767]) ).

thf(1844,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ~ ( ~ ! [SY2498: $i] :
                  ( ! [SY2499: $i] :
                      ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2498 @ SY2499 ) )
                  | ( in @ SV274 @ SY2498 ) )
            | ~ ! [SY2500: $i,SY2501: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2500 @ SY2501 ) )
                  | ( in @ SV299 @ SY2501 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1768]) ).

thf(1845,plain,
    ! [SV355: $i,SV322: $i] :
      ( ( ( disjoint @ SV322 @ SV355 )
        | ( in @ ( sK37_C @ SV355 @ SV322 ) @ ( set_intersection2 @ SV322 @ SV355 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1769]) ).

thf(1846,plain,
    ! [SV356: $i,SV323: $i] :
      ( ( ! [SY2571: $i] :
            ~ ( in @ SY2571 @ ( set_intersection2 @ SV323 @ SV356 ) )
        | ~ ( disjoint @ SV323 @ SV356 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1770]) ).

thf(1847,plain,
    ! [SV324: $i,SV357: $i] :
      ( ( ~ ( ~ ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV324 )
            | ~ ~ ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV357 ) )
        | ( subset @ SV324 @ SV357 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1771]) ).

thf(1848,plain,
    ! [SV358: $i,SV325: $i] :
      ( ( ~ ( subset @ SV325 @ SV358 )
        | ! [SY2572: $i] :
            ( ~ ( in @ SY2572 @ SV325 )
            | ( in @ SY2572 @ SV358 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1772]) ).

thf(1849,plain,
    ! [SV275: $i,SV359: $i] :
      ( ( ! [SY2573: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY2573 @ SV359 @ SV275 ) @ SV275 )
                    | ( in @ ( sK12_D @ SY2573 @ SV359 @ SV275 ) @ SV359 )
                    | ~ ( in @ ( sK12_D @ SY2573 @ SV359 @ SV275 ) @ SY2573 ) )
                | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY2573 @ SV359 @ SV275 ) @ SV275 )
                          | ( in @ ( sK12_D @ SY2573 @ SV359 @ SV275 ) @ SY2573 ) )
                      | ~ ( ~ ( in @ ( sK12_D @ SY2573 @ SV359 @ SV275 ) @ SV359 )
                          | ( in @ ( sK12_D @ SY2573 @ SV359 @ SV275 ) @ SY2573 ) ) ) )
            | ( SY2573
              = ( set_difference @ SV275 @ SV359 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1773]) ).

thf(1850,plain,
    ! [SV360: $i,SV275: $i] :
      ( ( ! [SY2574: $i] :
            ( ( SY2574
             != ( set_difference @ SV275 @ SV360 ) )
            | ~ ( ~ ! [SY2575: $i] :
                      ( ~ ( in @ SY2575 @ SV275 )
                      | ( in @ SY2575 @ SV360 )
                      | ( in @ SY2575 @ SY2574 ) )
                | ~ ~ ( ~ ! [SY2475: $i] :
                            ( ~ ( in @ SY2475 @ SY2574 )
                            | ( in @ SY2475 @ SV275 ) )
                      | ~ ! [SY2577: $i] :
                            ( ~ ( in @ SY2577 @ SY2574 )
                            | ~ ( in @ SY2577 @ SV360 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1774]) ).

thf(1851,plain,
    ! [SV240: $i,SV279: $i,SV326: $i] :
      ( ( ( ~ ( in @ SV326 @ SV279 ) )
        = $true )
      | ( ( in @ SV326 @ SV240 )
        = $true )
      | ( ( element @ SV279 @ ( powerset @ SV240 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1776]) ).

thf(1852,plain,
    ! [SV280: $i,SV241: $i,SV327: $i] :
      ( ( ( in @ SV327 @ SV241 )
        = $true )
      | ( ( subset @ SV241 @ ( set_difference @ SV280 @ ( singleton @ SV327 ) ) )
        = $true )
      | ( ( subset @ SV241 @ SV280 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1777]) ).

thf(1853,plain,
    ! [SV300: $i,SV245: $i,SV361: $i] :
      ( ( ( ~ ( element @ SV361 @ SV245 )
          | ( in @ SV361 @ SV300 )
          | ( in @ SV361 @ ( subset_complement @ SV245 @ SV300 ) ) )
        = $true )
      | ( ( element @ SV300 @ ( powerset @ SV245 ) )
        = $false )
      | ( ( SV245 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1778]) ).

thf(1854,plain,
    ! [SV301: $i,SV246: $i,SV283: $i] :
      ( ( ( ~ ( in @ SV283 @ ( subset_complement @ SV246 @ SV301 ) ) )
        = $true )
      | ( ( ~ ( in @ SV283 @ SV301 ) )
        = $true )
      | ( ( element @ SV301 @ ( powerset @ SV246 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1779]) ).

thf(1855,plain,
    ! [SV252: $i,SV288: $i] :
      ( ( ( relation @ SV288 )
        = $false )
      | ( ( relation @ SV252 )
        = $false )
      | ( ( relation @ ( set_union2 @ SV252 @ SV288 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1781]) ).

thf(1856,plain,
    ! [SV255: $i,SV302: $i,SV291: $i] :
      ( ( ( element @ SV291 @ ( powerset @ SV302 ) )
        = $false )
      | ( ( ~ ( in @ SV255 @ SV291 ) )
        = $true )
      | ( ( element @ SV255 @ SV302 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1783]) ).

thf(1857,plain,
    ! [SV256: $i,SV303: $i,SV292: $i] :
      ( ( ( element @ SV292 @ ( powerset @ SV303 ) )
        = $false )
      | ( ( ~ ( in @ SV256 @ SV292 ) )
        = $true )
      | ( ( ~ ( empty @ SV303 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1784]) ).

thf(1858,plain,
    ! [SV305: $i] :
      ( ( ( SV305 = empty_set )
        = $false )
      | ( ( ! [SY2503: $i] :
              ~ ( in @ SY2503 @ SV305 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1787]) ).

thf(1859,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1788]) ).

thf(1860,plain,
    ( ( ! [SX0: $i] :
          ( ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( in @ SX1 @ SX0 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1789]) ).

thf(1861,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ SX0 )
              | ( empty @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1790]) ).

thf(1862,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( empty @ SX0 )
          | ! [SX1: $i] :
              ( ~ ( empty @ SX1 )
              | ( element @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1791]) ).

thf(1863,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( ~ ( ~ ( ( ( sK30_C @ SV328 @ SV306 )
                   != SV306 )
                  | ~ ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) )
              | ~ ( ( ( sK30_C @ SV328 @ SV306 )
                    = SV306 )
                  | ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) ) ) )
        = $true )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1792]) ).

thf(1864,plain,
    ! [SV307: $i,SV329: $i] :
      ( ( ( ( SV329
           != ( singleton @ SV307 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2536: $i] :
                    ( ( SY2536 != SV307 )
                    | ( in @ SY2536 @ SV329 ) )
              | ~ ! [SY2537: $i] :
                    ( ~ ( in @ SY2537 @ SV329 )
                    | ( SY2537 = SV307 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1793]) ).

thf(1865,plain,
    ! [SV330: $i,SV308: $i] :
      ( ( ( disjoint @ SV308 @ SV330 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV308 )
              | ~ ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV330 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1794]) ).

thf(1866,plain,
    ! [SV331: $i,SV309: $i] :
      ( ( ( ! [SY2538: $i] :
              ( ~ ( in @ SY2538 @ SV309 )
              | ~ ( in @ SY2538 @ SV331 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV309 @ SV331 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1795]) ).

thf(1867,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ~ ( ~ ( ! [SY2539: $i] :
                      ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SY2539 )
                      | ~ ( in @ SY2539 @ SV310 ) )
                  | ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
              | ~ ( ~ ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ ( sK15_SY2048 @ SV332 @ SV310 ) )
                      | ~ ( in @ ( sK15_SY2048 @ SV332 @ SV310 ) @ SV310 ) )
                  | ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) ) ) )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1796]) ).

thf(1868,plain,
    ! [SV311: $i,SV333: $i] :
      ( ( ( ( SV333
           != ( union @ SV311 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2540: $i] :
                    ( ! [SY2515: $i] :
                        ( ~ ( in @ SY2540 @ SY2515 )
                        | ~ ( in @ SY2515 @ SV311 ) )
                    | ( in @ SY2540 @ SV333 ) )
              | ~ ! [SY2542: $i] :
                    ( ~ ( in @ SY2542 @ SV333 )
                    | ~ ( ~ ( in @ SY2542 @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) )
                        | ~ ( in @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) @ SV311 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1797]) ).

thf(1869,plain,
    ! [SV294: $i,SV258: $i] :
      ( ( ( ~ ! [SY2482: $i] :
                ( ~ ( element @ SY2482 @ ( powerset @ ( powerset @ SV258 ) ) )
                | ~ ( ~ ( element @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
                    | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                              | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) )
                          | ~ ( ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                              | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
                | ( SY2482
                  = ( complements_of_subsets @ SV258 @ SV294 ) ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1798]) ).

thf(1870,plain,
    ! [SV294: $i,SV258: $i] :
      ( ( ( ~ ! [SY2483: $i] :
                ( ~ ( element @ SY2483 @ ( powerset @ ( powerset @ SV258 ) ) )
                | ( SY2483
                 != ( complements_of_subsets @ SV258 @ SV294 ) )
                | ~ ( ~ ! [SY2484: $i] :
                          ( ~ ( element @ SY2484 @ ( powerset @ SV258 ) )
                          | ~ ( in @ SY2484 @ SY2483 )
                          | ( in @ ( subset_complement @ SV258 @ SY2484 ) @ SV294 ) )
                    | ~ ! [SY2485: $i] :
                          ( ~ ( element @ SY2485 @ ( powerset @ SV258 ) )
                          | ~ ( in @ ( subset_complement @ SV258 @ SY2485 ) @ SV294 )
                          | ( in @ SY2485 @ SY2483 ) ) ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1798]) ).

thf(1871,plain,
    ! [SV259: $i,SV295: $i] :
      ( ( ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV259 )
        = $true )
      | ( ( element @ SV259 @ ( powerset @ SV295 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1799]) ).

thf(1872,plain,
    ! [SV259: $i,SV295: $i] :
      ( ( ( ~ ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV295 ) )
        = $true )
      | ( ( element @ SV259 @ ( powerset @ SV295 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1800]) ).

thf(1873,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
                | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
                | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
            | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
                      | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
                  | ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
                      | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) ) ) )
        | ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1801]) ).

thf(1874,plain,
    ! [SV335: $i,SV260: $i,SV363: $i] :
      ( ( ( SV363
         != ( set_intersection2 @ SV260 @ SV335 ) )
        | ~ ( ~ ! [SY2578: $i] :
                  ( ~ ( in @ SY2578 @ SV260 )
                  | ~ ( in @ SY2578 @ SV335 )
                  | ( in @ SY2578 @ SV363 ) )
            | ~ ~ ( ~ ! [SY2579: $i] :
                        ( ~ ( in @ SY2579 @ SV363 )
                        | ( in @ SY2579 @ SV260 ) )
                  | ~ ! [SY2580: $i] :
                        ( ~ ( in @ SY2580 @ SV363 )
                        | ( in @ SY2580 @ SV335 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1802]) ).

thf(1875,plain,
    ! [SV261: $i] :
      ( ( ( ! [SY2393: $i] :
              ( ~ ( ~ ( ! [SY2394: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ SY2394 ) @ SV261 )
                      | ~ ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SY2393 @ SV261 ) @ ( sK18_SY2050 @ SY2393 @ SV261 ) ) @ SV261 )
                      | ( in @ ( sK17_C @ SY2393 @ SV261 ) @ SY2393 ) ) )
              | ( SY2393
                = ( relation_dom @ SV261 ) ) ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1803]) ).

thf(1876,plain,
    ! [SV261: $i] :
      ( ( ( ! [SY2395: $i] :
              ( ( SY2395
               != ( relation_dom @ SV261 ) )
              | ~ ( ~ ! [SY2396: $i] :
                        ( ! [SY2397: $i] :
                            ~ ( in @ ( ordered_pair @ SY2396 @ SY2397 ) @ SV261 )
                        | ( in @ SY2396 @ SY2395 ) )
                  | ~ ! [SY2398: $i] :
                        ( ~ ( in @ SY2398 @ SY2395 )
                        | ( in @ ( ordered_pair @ SY2398 @ ( sK16_D @ SY2398 @ SY2395 @ SV261 ) ) @ SV261 ) ) ) ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1804]) ).

thf(1877,plain,
    ! [SV336: $i,SV364: $i,SV262: $i] :
      ( ( ~ ( in @ SV262 @ SV364 )
        | ~ ( in @ SV336 @ SV364 )
        | ( subset @ ( unordered_pair @ SV262 @ SV336 ) @ SV364 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1805]) ).

thf(1878,plain,
    ! [SV262: $i] :
      ( ( ~ ! [SY2401: $i,SY2402: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2401 ) @ SY2402 )
              | ( in @ SV262 @ SY2402 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1806]) ).

thf(1879,plain,
    ! [SV262: $i] :
      ( ( ~ ! [SY2403: $i,SY2404: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2403 ) @ SY2404 )
              | ( in @ SY2403 @ SY2404 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1806]) ).

thf(1880,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
                  | ~ ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) )
              | ~ ( ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
                  | ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) ) ) )
        = $true )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1807]) ).

thf(1881,plain,
    ! [SV313: $i,SV338: $i] :
      ( ( ( ( SV338
           != ( powerset @ SV313 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2549: $i] :
                    ( ~ ( in @ SY2549 @ SV338 )
                    | ( subset @ SY2549 @ SV313 ) )
              | ~ ! [SY2550: $i] :
                    ( ~ ( subset @ SY2550 @ SV313 )
                    | ( in @ SY2550 @ SV338 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1808]) ).

thf(1882,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ ( sK33_SY2057 @ SX1 @ SX0 ) ) )
                      | ~ ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) )
                  | ~ ( ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX0 )
                          | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX2 ) )
                      | ( in @ ( sK32_C @ SX1 @ SX0 ) @ SX1 ) ) )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1809]) ).

thf(1883,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 = empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ~ ( ~ ! [SX2: $i] :
                        ( ~ ( ~ ( in @ ( sK31_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                            | ~ ~ ( in @ SX2 @ ( sK31_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)],[1810]) ).

thf(1884,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1
               != ( set_meet @ SX0 ) )
              | ( SX1 = empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1811]) ).

thf(1885,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( SX1 != empty_set )
              | ( SX1
                = ( set_meet @ SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1812]) ).

thf(1886,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                      | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                       != SV263 ) )
                  | ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                      | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                       != SV339 ) ) )
            | ~ ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                  = SV263 )
                | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                  = SV339 ) ) )
        | ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1813]) ).

thf(1887,plain,
    ! [SV340: $i,SV263: $i,SV366: $i] :
      ( ( ( SV366
         != ( unordered_pair @ SV263 @ SV340 ) )
        | ~ ( ~ ! [SY2581: $i] :
                  ( ~ ( in @ SY2581 @ SV366 )
                  | ( SY2581 = SV263 )
                  | ( SY2581 = SV340 ) )
            | ~ ~ ( ~ ! [SY2582: $i] :
                        ( ( SY2582 != SV263 )
                        | ( in @ SY2582 @ SV366 ) )
                  | ~ ! [SY2583: $i] :
                        ( ( SY2583 != SV340 )
                        | ( in @ SY2583 @ SV366 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1814]) ).

thf(1888,plain,
    ! [SV341: $i,SV314: $i] :
      ( ( ( ~ ( in @ SV314 @ SV341 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV314 ) @ SV341 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1815]) ).

thf(1889,plain,
    ! [SV342: $i,SV315: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV315 ) @ SV342 ) )
        = $true )
      | ( ( in @ SV315 @ SV342 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1816]) ).

thf(1890,plain,
    ! [SV343: $i,SV264: $i,SV367: $i] :
      ( ( ~ ( relation @ SV367 )
        | ~ ( in @ ( ordered_pair @ SV264 @ SV343 ) @ SV367 )
        | ( in @ SV264 @ ( relation_dom @ SV367 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1817]) ).

thf(1891,plain,
    ! [SV344: $i,SV264: $i,SV368: $i] :
      ( ( ~ ( relation @ SV368 )
        | ~ ( in @ ( ordered_pair @ SV264 @ SV344 ) @ SV368 )
        | ( in @ SV344 @ ( relation_rng @ SV368 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1818]) ).

thf(1892,plain,
    ! [SV345: $i,SV316: $i] :
      ( ( ( ~ ( in @ SV316 @ SV345 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV316 ) @ SV345 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1819]) ).

thf(1893,plain,
    ! [SV346: $i,SV317: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV317 ) @ SV346 ) )
        = $true )
      | ( ( in @ SV317 @ SV346 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1820]) ).

thf(1894,plain,
    ! [SV265: $i] :
      ( ( ( ! [SY2416: $i] :
              ( ~ ( ~ ( ! [SY2417: $i] :
                          ~ ( in @ ( ordered_pair @ SY2417 @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                      | ~ ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) )
                  | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SY2416 @ SV265 ) @ ( sK10_C @ SY2416 @ SV265 ) ) @ SV265 )
                      | ( in @ ( sK10_C @ SY2416 @ SV265 ) @ SY2416 ) ) )
              | ( SY2416
                = ( relation_rng @ SV265 ) ) ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1821]) ).

thf(1895,plain,
    ! [SV265: $i] :
      ( ( ( ! [SY2418: $i] :
              ( ( SY2418
               != ( relation_rng @ SV265 ) )
              | ~ ( ~ ! [SY2419: $i] :
                        ( ! [SY2420: $i] :
                            ~ ( in @ ( ordered_pair @ SY2420 @ SY2419 ) @ SV265 )
                        | ( in @ SY2419 @ SY2418 ) )
                  | ~ ! [SY2421: $i] :
                        ( ~ ( in @ SY2421 @ SY2418 )
                        | ( in @ ( ordered_pair @ ( sK9_D @ SY2421 @ SY2418 @ SV265 ) @ SY2421 ) @ SV265 ) ) ) ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1822]) ).

thf(1896,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
          | ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) )
        = $true )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1823]) ).

thf(1897,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
          | ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) )
        = $true )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1824]) ).

thf(1898,plain,
    ! [SV267: $i,SV347: $i] :
      ( ( ( ~ ( subset @ SV347 @ ( sK4_B @ SV267 ) )
          | ( are_equipotent @ SV347 @ ( sK4_B @ SV267 ) ) )
        = $true )
      | ( ( in @ SV347 @ ( sK4_B @ SV267 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1825]) ).

thf(1899,plain,
    ! [SV267: $i] :
      ( ( ~ ! [SY2424: $i] :
              ( ~ ( ~ ! [SY2425: $i] :
                        ( ~ ( subset @ SY2425 @ SY2424 )
                        | ( in @ SY2425 @ ( sK5_SY2040 @ SY2424 @ SV267 ) ) )
                  | ~ ( in @ ( sK5_SY2040 @ SY2424 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
              | ~ ( in @ SY2424 @ ( sK4_B @ SV267 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1826]) ).

thf(1900,plain,
    ! [SV267: $i] :
      ( ( ~ ~ ( ~ ! [SY2426: $i,SY2427: $i] :
                    ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
                    | ~ ( subset @ SY2427 @ SY2426 )
                    | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) )
              | ~ ( in @ SV267 @ ( sK4_B @ SV267 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1826]) ).

thf(1901,plain,
    ! [SV297: $i,SV369: $i,SV268: $i] :
      ( ( ! [SY2584: $i] :
            ( ~ ( in @ SV268 @ SV369 )
            | ~ ( in @ SV297 @ SY2584 )
            | ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV369 @ SY2584 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1827]) ).

thf(1902,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ~ ! [SY2488: $i] :
              ( ! [SY2489: $i] :
                  ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2488 @ SY2489 ) )
              | ( in @ SV268 @ SY2488 ) )
        | ~ ! [SY2490: $i,SY2491: $i] :
              ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2490 @ SY2491 ) )
              | ( in @ SV297 @ SY2491 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1828]) ).

thf(1903,plain,
    ! [SV318: $i] :
      ( ( ( ~ ! [SY2525: $i,SY2526: $i] :
                ( ( sK36_B @ SV318 )
               != ( ordered_pair @ SY2525 @ SY2526 ) )
          | ~ ( in @ ( sK36_B @ SV318 ) @ SV318 ) )
        = $false )
      | ( ( relation @ SV318 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1829]) ).

thf(1904,plain,
    ! [SV319: $i] :
      ( ( ( relation @ SV319 )
        = $false )
      | ( ( ! [SY2527: $i] :
              ( ( SY2527
                = ( ordered_pair @ ( sK34_C @ SY2527 @ SV319 ) @ ( sK35_SY2059 @ SY2527 @ SV319 ) ) )
              | ~ ( in @ SY2527 @ SV319 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1830]) ).

thf(1905,plain,
    ! [SV348: $i,SV320: $i] :
      ( ( ( ( ( set_difference @ SV320 @ ( singleton @ SV348 ) )
           != SV320 ) )
        = $true )
      | ( ( ~ ( in @ SV348 @ SV320 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1831]) ).

thf(1906,plain,
    ! [SV321: $i,SV349: $i] :
      ( ( ( in @ SV349 @ SV321 )
        = $true )
      | ( ( ( set_difference @ SV321 @ ( singleton @ SV349 ) )
          = SV321 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1832]) ).

thf(1907,plain,
    ! [SV370: $i,SV298: $i,SV269: $i] :
      ( ( ! [SY2585: $i] :
            ( ( ordered_pair @ SV269 @ SV298 )
           != ( ordered_pair @ SV370 @ SY2585 ) )
        | ( SV269 = SV370 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1833]) ).

thf(1908,plain,
    ! [SV371: $i,SV298: $i,SV269: $i] :
      ( ( ! [SY2586: $i] :
            ( ( ( ordered_pair @ SV269 @ SV298 )
             != ( ordered_pair @ SV371 @ SY2586 ) )
            | ( SV298 = SY2586 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1834]) ).

thf(1909,plain,
    ! [SV372: $i,SV350: $i,SV270: $i] :
      ( ( ~ ( ~ ( ! [SY2587: $i,SY2588: $i] :
                    ( ~ ( in @ SY2587 @ SV270 )
                    | ~ ( in @ SY2588 @ SV350 )
                    | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
                     != ( ordered_pair @ SY2587 @ SY2588 ) ) )
                | ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
            | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
                          | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) )
                    | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
                     != ( ordered_pair @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) ) ) )
                | ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) ) )
        | ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1835]) ).

thf(1910,plain,
    ! [SV351: $i,SV270: $i,SV373: $i] :
      ( ( ( SV373
         != ( cartesian_product2 @ SV270 @ SV351 ) )
        | ~ ( ~ ! [SY2589: $i] :
                  ( ! [SY2563: $i,SY2564: $i] :
                      ( ~ ( in @ SY2563 @ SV270 )
                      | ~ ( in @ SY2564 @ SV351 )
                      | ( SY2589
                       != ( ordered_pair @ SY2563 @ SY2564 ) ) )
                  | ( in @ SY2589 @ SV373 ) )
            | ~ ! [SY2592: $i] :
                  ( ~ ( in @ SY2592 @ SV373 )
                  | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                            | ~ ( in @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
                      | ( SY2592
                       != ( ordered_pair @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1836]) ).

thf(1911,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                      | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) )
                  | ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                      | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) )
            | ~ ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 )
                | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) )
        | ( SV374
          = ( set_union2 @ SV271 @ SV352 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1837]) ).

thf(1912,plain,
    ! [SV353: $i,SV271: $i,SV375: $i] :
      ( ( ( SV375
         != ( set_union2 @ SV271 @ SV353 ) )
        | ~ ( ~ ! [SY2593: $i] :
                  ( ~ ( in @ SY2593 @ SV375 )
                  | ( in @ SY2593 @ SV271 )
                  | ( in @ SY2593 @ SV353 ) )
            | ~ ~ ( ~ ! [SY2594: $i] :
                        ( ~ ( in @ SY2594 @ SV271 )
                        | ( in @ SY2594 @ SV375 ) )
                  | ~ ! [SY2595: $i] :
                        ( ~ ( in @ SY2595 @ SV353 )
                        | ( in @ SY2595 @ SV375 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1838]) ).

thf(1913,plain,
    ! [SV272: $i,SV354: $i] :
      ( ( ( ~ ( subset @ SV354 @ ( sK39_B @ SV272 ) )
          | ( are_equipotent @ SV354 @ ( sK39_B @ SV272 ) ) )
        = $true )
      | ( ( in @ SV354 @ ( sK39_B @ SV272 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1839]) ).

thf(1914,plain,
    ! [SV272: $i] :
      ( ( ~ ! [SY2458: $i] :
              ( ~ ( in @ SY2458 @ ( sK39_B @ SV272 ) )
              | ( in @ ( powerset @ SY2458 ) @ ( sK39_B @ SV272 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1840]) ).

thf(1915,plain,
    ! [SV272: $i] :
      ( ( ~ ~ ( ~ ! [SY2459: $i,SY2460: $i] :
                    ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
                    | ~ ( subset @ SY2460 @ SY2459 )
                    | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) )
              | ~ ( in @ SV272 @ ( sK39_B @ SV272 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1840]) ).

thf(1916,plain,
    ! [SV273: $i] :
      ( ( ( ! [SY2461: $i] :
              ( ~ ( relation @ SY2461 )
              | ~ ( subset @ SV273 @ SY2461 )
              | ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SY2461 ) ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1841]) ).

thf(1917,plain,
    ! [SV273: $i] :
      ( ( ( ! [SY2462: $i] :
              ( ~ ( relation @ SY2462 )
              | ~ ( subset @ SV273 @ SY2462 )
              | ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SY2462 ) ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1842]) ).

thf(1918,plain,
    ! [SV299: $i,SV376: $i,SV274: $i] :
      ( ( ! [SY2596: $i] :
            ( ~ ( in @ SV274 @ SV376 )
            | ~ ( in @ SV299 @ SY2596 )
            | ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV376 @ SY2596 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1843]) ).

thf(1919,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ~ ! [SY2498: $i] :
              ( ! [SY2499: $i] :
                  ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2498 @ SY2499 ) )
              | ( in @ SV274 @ SY2498 ) )
        | ~ ! [SY2500: $i,SY2501: $i] :
              ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2500 @ SY2501 ) )
              | ( in @ SV299 @ SY2501 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1844]) ).

thf(1920,plain,
    ! [SV355: $i,SV322: $i] :
      ( ( ( disjoint @ SV322 @ SV355 )
        = $true )
      | ( ( in @ ( sK37_C @ SV355 @ SV322 ) @ ( set_intersection2 @ SV322 @ SV355 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1845]) ).

thf(1921,plain,
    ! [SV356: $i,SV323: $i] :
      ( ( ( ! [SY2571: $i] :
              ~ ( in @ SY2571 @ ( set_intersection2 @ SV323 @ SV356 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV323 @ SV356 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1846]) ).

thf(1922,plain,
    ! [SV324: $i,SV357: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV324 )
              | ~ ~ ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV357 ) ) )
        = $true )
      | ( ( subset @ SV324 @ SV357 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1847]) ).

thf(1923,plain,
    ! [SV358: $i,SV325: $i] :
      ( ( ( ~ ( subset @ SV325 @ SV358 ) )
        = $true )
      | ( ( ! [SY2572: $i] :
              ( ~ ( in @ SY2572 @ SV325 )
              | ( in @ SY2572 @ SV358 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1848]) ).

thf(1924,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
                | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
                | ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
            | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
                      | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
                  | ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
                      | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) ) ) )
        | ( SV377
          = ( set_difference @ SV275 @ SV359 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1849]) ).

thf(1925,plain,
    ! [SV360: $i,SV275: $i,SV378: $i] :
      ( ( ( SV378
         != ( set_difference @ SV275 @ SV360 ) )
        | ~ ( ~ ! [SY2597: $i] :
                  ( ~ ( in @ SY2597 @ SV275 )
                  | ( in @ SY2597 @ SV360 )
                  | ( in @ SY2597 @ SV378 ) )
            | ~ ~ ( ~ ! [SY2598: $i] :
                        ( ~ ( in @ SY2598 @ SV378 )
                        | ( in @ SY2598 @ SV275 ) )
                  | ~ ! [SY2599: $i] :
                        ( ~ ( in @ SY2599 @ SV378 )
                        | ~ ( in @ SY2599 @ SV360 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1850]) ).

thf(1926,plain,
    ! [SV240: $i,SV279: $i,SV326: $i] :
      ( ( ( in @ SV326 @ SV279 )
        = $false )
      | ( ( in @ SV326 @ SV240 )
        = $true )
      | ( ( element @ SV279 @ ( powerset @ SV240 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1851]) ).

thf(1927,plain,
    ! [SV300: $i,SV245: $i,SV361: $i] :
      ( ( ( ~ ( element @ SV361 @ SV245 ) )
        = $true )
      | ( ( ( in @ SV361 @ SV300 )
          | ( in @ SV361 @ ( subset_complement @ SV245 @ SV300 ) ) )
        = $true )
      | ( ( element @ SV300 @ ( powerset @ SV245 ) )
        = $false )
      | ( ( SV245 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1853]) ).

thf(1928,plain,
    ! [SV301: $i,SV246: $i,SV283: $i] :
      ( ( ( in @ SV283 @ ( subset_complement @ SV246 @ SV301 ) )
        = $false )
      | ( ( ~ ( in @ SV283 @ SV301 ) )
        = $true )
      | ( ( element @ SV301 @ ( powerset @ SV246 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1854]) ).

thf(1929,plain,
    ! [SV302: $i,SV291: $i,SV255: $i] :
      ( ( ( in @ SV255 @ SV291 )
        = $false )
      | ( ( element @ SV291 @ ( powerset @ SV302 ) )
        = $false )
      | ( ( element @ SV255 @ SV302 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1856]) ).

thf(1930,plain,
    ! [SV303: $i,SV292: $i,SV256: $i] :
      ( ( ( in @ SV256 @ SV292 )
        = $false )
      | ( ( element @ SV292 @ ( powerset @ SV303 ) )
        = $false )
      | ( ( ~ ( empty @ SV303 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1857]) ).

thf(1931,plain,
    ! [SV305: $i,SV379: $i] :
      ( ( ( ~ ( in @ SV379 @ SV305 ) )
        = $true )
      | ( ( SV305 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1858]) ).

thf(1932,plain,
    ! [SV380: $i] :
      ( ( ( empty @ SV380 )
        | ! [SY2600: $i] :
            ( ~ ( element @ SY2600 @ SV380 )
            | ( in @ SY2600 @ SV380 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1859]) ).

thf(1933,plain,
    ! [SV381: $i] :
      ( ( ( empty @ SV381 )
        | ! [SY2601: $i] :
            ( ~ ( in @ SY2601 @ SV381 )
            | ( element @ SY2601 @ SV381 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1860]) ).

thf(1934,plain,
    ! [SV382: $i] :
      ( ( ~ ( empty @ SV382 )
        | ! [SY2602: $i] :
            ( ~ ( element @ SY2602 @ SV382 )
            | ( empty @ SY2602 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1861]) ).

thf(1935,plain,
    ! [SV383: $i] :
      ( ( ~ ( empty @ SV383 )
        | ! [SY2603: $i] :
            ( ~ ( empty @ SY2603 )
            | ( element @ SY2603 @ SV383 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1862]) ).

thf(1936,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( ~ ( ( ( sK30_C @ SV328 @ SV306 )
               != SV306 )
              | ~ ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) )
          | ~ ( ( ( sK30_C @ SV328 @ SV306 )
                = SV306 )
              | ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) ) )
        = $false )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1863]) ).

thf(1937,plain,
    ! [SV307: $i,SV329: $i] :
      ( ( ( SV329
          = ( singleton @ SV307 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2536: $i] :
                    ( ( SY2536 != SV307 )
                    | ( in @ SY2536 @ SV329 ) )
              | ~ ! [SY2537: $i] :
                    ( ~ ( in @ SY2537 @ SV329 )
                    | ( SY2537 = SV307 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1864]) ).

thf(1938,plain,
    ! [SV308: $i,SV330: $i] :
      ( ( ( ~ ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV308 )
          | ~ ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV330 ) )
        = $false )
      | ( ( disjoint @ SV308 @ SV330 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1865]) ).

thf(1939,plain,
    ! [SV331: $i,SV309: $i,SV384: $i] :
      ( ( ( ~ ( in @ SV384 @ SV309 )
          | ~ ( in @ SV384 @ SV331 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV309 @ SV331 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1866]) ).

thf(1940,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ~ ( ! [SY2539: $i] :
                  ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SY2539 )
                  | ~ ( in @ SY2539 @ SV310 ) )
              | ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
          | ~ ( ~ ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ ( sK15_SY2048 @ SV332 @ SV310 ) )
                  | ~ ( in @ ( sK15_SY2048 @ SV332 @ SV310 ) @ SV310 ) )
              | ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) ) )
        = $false )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1867]) ).

thf(1941,plain,
    ! [SV311: $i,SV333: $i] :
      ( ( ( SV333
          = ( union @ SV311 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2540: $i] :
                    ( ! [SY2515: $i] :
                        ( ~ ( in @ SY2540 @ SY2515 )
                        | ~ ( in @ SY2515 @ SV311 ) )
                    | ( in @ SY2540 @ SV333 ) )
              | ~ ! [SY2542: $i] :
                    ( ~ ( in @ SY2542 @ SV333 )
                    | ~ ( ~ ( in @ SY2542 @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) )
                        | ~ ( in @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) @ SV311 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1868]) ).

thf(1942,plain,
    ! [SV294: $i,SV258: $i] :
      ( ( ( ! [SY2482: $i] :
              ( ~ ( element @ SY2482 @ ( powerset @ ( powerset @ SV258 ) ) )
              | ~ ( ~ ( element @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
                  | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                            | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) )
                        | ~ ( ( in @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) @ SY2482 )
                            | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SY2482 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
              | ( SY2482
                = ( complements_of_subsets @ SV258 @ SV294 ) ) ) )
        = $true )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1869]) ).

thf(1943,plain,
    ! [SV294: $i,SV258: $i] :
      ( ( ( ! [SY2483: $i] :
              ( ~ ( element @ SY2483 @ ( powerset @ ( powerset @ SV258 ) ) )
              | ( SY2483
               != ( complements_of_subsets @ SV258 @ SV294 ) )
              | ~ ( ~ ! [SY2484: $i] :
                        ( ~ ( element @ SY2484 @ ( powerset @ SV258 ) )
                        | ~ ( in @ SY2484 @ SY2483 )
                        | ( in @ ( subset_complement @ SV258 @ SY2484 ) @ SV294 ) )
                  | ~ ! [SY2485: $i] :
                        ( ~ ( element @ SY2485 @ ( powerset @ SV258 ) )
                        | ~ ( in @ ( subset_complement @ SV258 @ SY2485 ) @ SV294 )
                        | ( in @ SY2485 @ SY2483 ) ) ) ) )
        = $true )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1870]) ).

thf(1944,plain,
    ! [SV259: $i,SV295: $i] :
      ( ( ( in @ ( sK40_C @ SV295 @ SV259 ) @ SV295 )
        = $false )
      | ( ( element @ SV259 @ ( powerset @ SV295 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1872]) ).

thf(1945,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
                  | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
                  | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
              | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
                        | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
                    | ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
                        | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) ) ) ) )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1873]) ).

thf(1946,plain,
    ! [SV335: $i,SV260: $i,SV363: $i] :
      ( ( ( ( SV363
           != ( set_intersection2 @ SV260 @ SV335 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2578: $i] :
                    ( ~ ( in @ SY2578 @ SV260 )
                    | ~ ( in @ SY2578 @ SV335 )
                    | ( in @ SY2578 @ SV363 ) )
              | ~ ~ ( ~ ! [SY2579: $i] :
                          ( ~ ( in @ SY2579 @ SV363 )
                          | ( in @ SY2579 @ SV260 ) )
                    | ~ ! [SY2580: $i] :
                          ( ~ ( in @ SY2580 @ SV363 )
                          | ( in @ SY2580 @ SV335 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1874]) ).

thf(1947,plain,
    ! [SV261: $i,SV385: $i] :
      ( ( ( ~ ( ~ ( ! [SY2604: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ SY2604 ) @ SV261 )
                  | ~ ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ ( sK18_SY2050 @ SV385 @ SV261 ) ) @ SV261 )
                  | ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) ) )
          | ( SV385
            = ( relation_dom @ SV261 ) ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1875]) ).

thf(1948,plain,
    ! [SV261: $i,SV386: $i] :
      ( ( ( ( SV386
           != ( relation_dom @ SV261 ) )
          | ~ ( ~ ! [SY2605: $i] :
                    ( ! [SY2397: $i] :
                        ~ ( in @ ( ordered_pair @ SY2605 @ SY2397 ) @ SV261 )
                    | ( in @ SY2605 @ SV386 ) )
              | ~ ! [SY2607: $i] :
                    ( ~ ( in @ SY2607 @ SV386 )
                    | ( in @ ( ordered_pair @ SY2607 @ ( sK16_D @ SY2607 @ SV386 @ SV261 ) ) @ SV261 ) ) ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1876]) ).

thf(1949,plain,
    ! [SV336: $i,SV364: $i,SV262: $i] :
      ( ( ( ~ ( in @ SV262 @ SV364 )
          | ~ ( in @ SV336 @ SV364 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV262 @ SV336 ) @ SV364 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1877]) ).

thf(1950,plain,
    ! [SV262: $i] :
      ( ( ! [SY2401: $i,SY2402: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2401 ) @ SY2402 )
            | ( in @ SV262 @ SY2402 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1878]) ).

thf(1951,plain,
    ! [SV262: $i] :
      ( ( ! [SY2403: $i,SY2404: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV262 @ SY2403 ) @ SY2404 )
            | ( in @ SY2403 @ SY2404 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1879]) ).

thf(1952,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
              | ~ ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) )
          | ~ ( ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
              | ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) ) )
        = $false )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1880]) ).

thf(1953,plain,
    ! [SV313: $i,SV338: $i] :
      ( ( ( SV338
          = ( powerset @ SV313 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2549: $i] :
                    ( ~ ( in @ SY2549 @ SV338 )
                    | ( subset @ SY2549 @ SV313 ) )
              | ~ ! [SY2550: $i] :
                    ( ~ ( subset @ SY2550 @ SV313 )
                    | ( in @ SY2550 @ SV338 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1881]) ).

thf(1954,plain,
    ! [SV387: $i] :
      ( ( ( SV387 = empty_set )
        | ! [SY2608: $i] :
            ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SY2608 @ SV387 ) @ SV387 )
                        | ~ ~ ( in @ ( sK32_C @ SY2608 @ SV387 ) @ ( sK33_SY2057 @ SY2608 @ SV387 ) ) )
                    | ~ ( in @ ( sK32_C @ SY2608 @ SV387 ) @ SY2608 ) )
                | ~ ( ! [SY2609: $i] :
                        ( ~ ( in @ SY2609 @ SV387 )
                        | ( in @ ( sK32_C @ SY2608 @ SV387 ) @ SY2609 ) )
                    | ( in @ ( sK32_C @ SY2608 @ SV387 ) @ SY2608 ) ) )
            | ( SY2608
              = ( set_meet @ SV387 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1882]) ).

thf(1955,plain,
    ! [SV388: $i] :
      ( ( ( SV388 = empty_set )
        | ! [SY2610: $i] :
            ( ( SY2610
             != ( set_meet @ SV388 ) )
            | ~ ( ~ ! [SY2611: $i] :
                      ( ~ ( ~ ( in @ ( sK31_D @ SY2611 @ SY2610 @ SV388 ) @ SV388 )
                          | ~ ~ ( in @ SY2611 @ ( sK31_D @ SY2611 @ SY2610 @ SV388 ) ) )
                      | ( in @ SY2611 @ SY2610 ) )
                | ~ ! [SY2612: $i] :
                      ( ~ ( in @ SY2612 @ SY2610 )
                      | ! [SY2613: $i] :
                          ( ~ ( in @ SY2613 @ SV388 )
                          | ( in @ SY2612 @ SY2613 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1883]) ).

thf(1956,plain,
    ! [SV389: $i] :
      ( ( ( SV389 != empty_set )
        | ! [SY2614: $i] :
            ( ( SY2614
             != ( set_meet @ SV389 ) )
            | ( SY2614 = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1884]) ).

thf(1957,plain,
    ! [SV390: $i] :
      ( ( ( SV390 != empty_set )
        | ! [SY2615: $i] :
            ( ( SY2615 != empty_set )
            | ( SY2615
              = ( set_meet @ SV390 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1885]) ).

thf(1958,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                        | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                         != SV263 ) )
                    | ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                        | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                         != SV339 ) ) )
              | ~ ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                  | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                    = SV263 )
                  | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                    = SV339 ) ) ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1886]) ).

thf(1959,plain,
    ! [SV340: $i,SV263: $i,SV366: $i] :
      ( ( ( ( SV366
           != ( unordered_pair @ SV263 @ SV340 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2581: $i] :
                    ( ~ ( in @ SY2581 @ SV366 )
                    | ( SY2581 = SV263 )
                    | ( SY2581 = SV340 ) )
              | ~ ~ ( ~ ! [SY2582: $i] :
                          ( ( SY2582 != SV263 )
                          | ( in @ SY2582 @ SV366 ) )
                    | ~ ! [SY2583: $i] :
                          ( ( SY2583 != SV340 )
                          | ( in @ SY2583 @ SV366 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1887]) ).

thf(1960,plain,
    ! [SV341: $i,SV314: $i] :
      ( ( ( in @ SV314 @ SV341 )
        = $false )
      | ( ( subset @ ( singleton @ SV314 ) @ SV341 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1888]) ).

thf(1961,plain,
    ! [SV342: $i,SV315: $i] :
      ( ( ( subset @ ( singleton @ SV315 ) @ SV342 )
        = $false )
      | ( ( in @ SV315 @ SV342 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1889]) ).

thf(1962,plain,
    ! [SV343: $i,SV264: $i,SV367: $i] :
      ( ( ( ~ ( relation @ SV367 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV264 @ SV343 ) @ SV367 )
          | ( in @ SV264 @ ( relation_dom @ SV367 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1890]) ).

thf(1963,plain,
    ! [SV344: $i,SV264: $i,SV368: $i] :
      ( ( ( ~ ( relation @ SV368 ) )
        = $true )
      | ( ( ~ ( in @ ( ordered_pair @ SV264 @ SV344 ) @ SV368 )
          | ( in @ SV344 @ ( relation_rng @ SV368 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1891]) ).

thf(1964,plain,
    ! [SV345: $i,SV316: $i] :
      ( ( ( in @ SV316 @ SV345 )
        = $false )
      | ( ( subset @ ( singleton @ SV316 ) @ SV345 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1892]) ).

thf(1965,plain,
    ! [SV346: $i,SV317: $i] :
      ( ( ( subset @ ( singleton @ SV317 ) @ SV346 )
        = $false )
      | ( ( in @ SV317 @ SV346 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1893]) ).

thf(1966,plain,
    ! [SV265: $i,SV391: $i] :
      ( ( ( ~ ( ~ ( ! [SY2616: $i] :
                      ~ ( in @ ( ordered_pair @ SY2616 @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
                  | ~ ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV391 @ SV265 ) @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
                  | ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) ) )
          | ( SV391
            = ( relation_rng @ SV265 ) ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1894]) ).

thf(1967,plain,
    ! [SV265: $i,SV392: $i] :
      ( ( ( ( SV392
           != ( relation_rng @ SV265 ) )
          | ~ ( ~ ! [SY2617: $i] :
                    ( ! [SY2420: $i] :
                        ~ ( in @ ( ordered_pair @ SY2420 @ SY2617 ) @ SV265 )
                    | ( in @ SY2617 @ SV392 ) )
              | ~ ! [SY2619: $i] :
                    ( ~ ( in @ SY2619 @ SV392 )
                    | ( in @ ( ordered_pair @ ( sK9_D @ SY2619 @ SV392 @ SV265 ) @ SY2619 ) @ SV265 ) ) ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1895]) ).

thf(1968,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 ) )
        = $true )
      | ( ( ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) )
        = $true )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1896]) ).

thf(1969,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
        = $true )
      | ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 )
        = $true )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1897]) ).

thf(1970,plain,
    ! [SV267: $i,SV347: $i] :
      ( ( ( ~ ( subset @ SV347 @ ( sK4_B @ SV267 ) ) )
        = $true )
      | ( ( are_equipotent @ SV347 @ ( sK4_B @ SV267 ) )
        = $true )
      | ( ( in @ SV347 @ ( sK4_B @ SV267 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1898]) ).

thf(1971,plain,
    ! [SV267: $i] :
      ( ( ! [SY2424: $i] :
            ( ~ ( ~ ! [SY2425: $i] :
                      ( ~ ( subset @ SY2425 @ SY2424 )
                      | ( in @ SY2425 @ ( sK5_SY2040 @ SY2424 @ SV267 ) ) )
                | ~ ( in @ ( sK5_SY2040 @ SY2424 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
            | ~ ( in @ SY2424 @ ( sK4_B @ SV267 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1899]) ).

thf(1972,plain,
    ! [SV267: $i] :
      ( ( ~ ( ~ ! [SY2426: $i,SY2427: $i] :
                  ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
                  | ~ ( subset @ SY2427 @ SY2426 )
                  | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) )
            | ~ ( in @ SV267 @ ( sK4_B @ SV267 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1900]) ).

thf(1973,plain,
    ! [SV393: $i,SV297: $i,SV369: $i,SV268: $i] :
      ( ( ~ ( in @ SV268 @ SV369 )
        | ~ ( in @ SV297 @ SV393 )
        | ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV369 @ SV393 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1901]) ).

thf(1974,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ~ ! [SY2488: $i] :
              ( ! [SY2489: $i] :
                  ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2488 @ SY2489 ) )
              | ( in @ SV268 @ SY2488 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1902]) ).

thf(1975,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ~ ! [SY2490: $i,SY2491: $i] :
              ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2490 @ SY2491 ) )
              | ( in @ SV297 @ SY2491 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1902]) ).

thf(1976,plain,
    ! [SV318: $i] :
      ( ( ( ~ ! [SY2525: $i,SY2526: $i] :
                ( ( sK36_B @ SV318 )
               != ( ordered_pair @ SY2525 @ SY2526 ) ) )
        = $false )
      | ( ( relation @ SV318 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1903]) ).

thf(1977,plain,
    ! [SV318: $i] :
      ( ( ( ~ ( in @ ( sK36_B @ SV318 ) @ SV318 ) )
        = $false )
      | ( ( relation @ SV318 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1903]) ).

thf(1978,plain,
    ! [SV319: $i,SV394: $i] :
      ( ( ( ( SV394
            = ( ordered_pair @ ( sK34_C @ SV394 @ SV319 ) @ ( sK35_SY2059 @ SV394 @ SV319 ) ) )
          | ~ ( in @ SV394 @ SV319 ) )
        = $true )
      | ( ( relation @ SV319 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1904]) ).

thf(1979,plain,
    ! [SV348: $i,SV320: $i] :
      ( ( ( ( set_difference @ SV320 @ ( singleton @ SV348 ) )
          = SV320 )
        = $false )
      | ( ( ~ ( in @ SV348 @ SV320 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1905]) ).

thf(1980,plain,
    ! [SV370: $i,SV298: $i,SV269: $i] :
      ( ( ( ! [SY2585: $i] :
              ( ( ordered_pair @ SV269 @ SV298 )
             != ( ordered_pair @ SV370 @ SY2585 ) ) )
        = $true )
      | ( ( SV269 = SV370 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1907]) ).

thf(1981,plain,
    ! [SV395: $i,SV371: $i,SV298: $i,SV269: $i] :
      ( ( ( ( ordered_pair @ SV269 @ SV298 )
         != ( ordered_pair @ SV371 @ SV395 ) )
        | ( SV298 = SV395 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1908]) ).

thf(1982,plain,
    ! [SV372: $i,SV350: $i,SV270: $i] :
      ( ( ( ~ ( ~ ( ! [SY2587: $i,SY2588: $i] :
                      ( ~ ( in @ SY2587 @ SV270 )
                      | ~ ( in @ SY2588 @ SV350 )
                      | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
                       != ( ordered_pair @ SY2587 @ SY2588 ) ) )
                  | ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
              | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
                            | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) )
                      | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
                       != ( ordered_pair @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) ) ) )
                  | ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) ) ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1909]) ).

thf(1983,plain,
    ! [SV351: $i,SV270: $i,SV373: $i] :
      ( ( ( ( SV373
           != ( cartesian_product2 @ SV270 @ SV351 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2589: $i] :
                    ( ! [SY2563: $i,SY2564: $i] :
                        ( ~ ( in @ SY2563 @ SV270 )
                        | ~ ( in @ SY2564 @ SV351 )
                        | ( SY2589
                         != ( ordered_pair @ SY2563 @ SY2564 ) ) )
                    | ( in @ SY2589 @ SV373 ) )
              | ~ ! [SY2592: $i] :
                    ( ~ ( in @ SY2592 @ SV373 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                              | ~ ( in @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
                        | ( SY2592
                         != ( ordered_pair @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1910]) ).

thf(1984,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                        | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) )
                    | ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                        | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) )
              | ~ ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                  | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 )
                  | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1911]) ).

thf(1985,plain,
    ! [SV353: $i,SV271: $i,SV375: $i] :
      ( ( ( ( SV375
           != ( set_union2 @ SV271 @ SV353 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2593: $i] :
                    ( ~ ( in @ SY2593 @ SV375 )
                    | ( in @ SY2593 @ SV271 )
                    | ( in @ SY2593 @ SV353 ) )
              | ~ ~ ( ~ ! [SY2594: $i] :
                          ( ~ ( in @ SY2594 @ SV271 )
                          | ( in @ SY2594 @ SV375 ) )
                    | ~ ! [SY2595: $i] :
                          ( ~ ( in @ SY2595 @ SV353 )
                          | ( in @ SY2595 @ SV375 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1912]) ).

thf(1986,plain,
    ! [SV272: $i,SV354: $i] :
      ( ( ( ~ ( subset @ SV354 @ ( sK39_B @ SV272 ) ) )
        = $true )
      | ( ( are_equipotent @ SV354 @ ( sK39_B @ SV272 ) )
        = $true )
      | ( ( in @ SV354 @ ( sK39_B @ SV272 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1913]) ).

thf(1987,plain,
    ! [SV272: $i] :
      ( ( ! [SY2458: $i] :
            ( ~ ( in @ SY2458 @ ( sK39_B @ SV272 ) )
            | ( in @ ( powerset @ SY2458 ) @ ( sK39_B @ SV272 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1914]) ).

thf(1988,plain,
    ! [SV272: $i] :
      ( ( ~ ( ~ ! [SY2459: $i,SY2460: $i] :
                  ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
                  | ~ ( subset @ SY2460 @ SY2459 )
                  | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) )
            | ~ ( in @ SV272 @ ( sK39_B @ SV272 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1915]) ).

thf(1989,plain,
    ! [SV273: $i,SV396: $i] :
      ( ( ( ~ ( relation @ SV396 )
          | ~ ( subset @ SV273 @ SV396 )
          | ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SV396 ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1916]) ).

thf(1990,plain,
    ! [SV273: $i,SV397: $i] :
      ( ( ( ~ ( relation @ SV397 )
          | ~ ( subset @ SV273 @ SV397 )
          | ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SV397 ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1917]) ).

thf(1991,plain,
    ! [SV398: $i,SV299: $i,SV376: $i,SV274: $i] :
      ( ( ~ ( in @ SV274 @ SV376 )
        | ~ ( in @ SV299 @ SV398 )
        | ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV376 @ SV398 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1918]) ).

thf(1992,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ~ ! [SY2498: $i] :
              ( ! [SY2499: $i] :
                  ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2498 @ SY2499 ) )
              | ( in @ SV274 @ SY2498 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1919]) ).

thf(1993,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ~ ! [SY2500: $i,SY2501: $i] :
              ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2500 @ SY2501 ) )
              | ( in @ SV299 @ SY2501 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1919]) ).

thf(1994,plain,
    ! [SV356: $i,SV323: $i,SV399: $i] :
      ( ( ( ~ ( in @ SV399 @ ( set_intersection2 @ SV323 @ SV356 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV323 @ SV356 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1921]) ).

thf(1995,plain,
    ! [SV324: $i,SV357: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV324 )
          | ~ ~ ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV357 ) )
        = $false )
      | ( ( subset @ SV324 @ SV357 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1922]) ).

thf(1996,plain,
    ! [SV358: $i,SV325: $i] :
      ( ( ( subset @ SV325 @ SV358 )
        = $false )
      | ( ( ! [SY2572: $i] :
              ( ~ ( in @ SY2572 @ SV325 )
              | ( in @ SY2572 @ SV358 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1923]) ).

thf(1997,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
                  | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
                  | ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
              | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
                        | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
                    | ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
                        | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) ) ) ) )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1924]) ).

thf(1998,plain,
    ! [SV360: $i,SV275: $i,SV378: $i] :
      ( ( ( ( SV378
           != ( set_difference @ SV275 @ SV360 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2597: $i] :
                    ( ~ ( in @ SY2597 @ SV275 )
                    | ( in @ SY2597 @ SV360 )
                    | ( in @ SY2597 @ SV378 ) )
              | ~ ~ ( ~ ! [SY2598: $i] :
                          ( ~ ( in @ SY2598 @ SV378 )
                          | ( in @ SY2598 @ SV275 ) )
                    | ~ ! [SY2599: $i] :
                          ( ~ ( in @ SY2599 @ SV378 )
                          | ~ ( in @ SY2599 @ SV360 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1925]) ).

thf(1999,plain,
    ! [SV300: $i,SV245: $i,SV361: $i] :
      ( ( ( element @ SV361 @ SV245 )
        = $false )
      | ( ( ( in @ SV361 @ SV300 )
          | ( in @ SV361 @ ( subset_complement @ SV245 @ SV300 ) ) )
        = $true )
      | ( ( element @ SV300 @ ( powerset @ SV245 ) )
        = $false )
      | ( ( SV245 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1927]) ).

thf(2000,plain,
    ! [SV246: $i,SV301: $i,SV283: $i] :
      ( ( ( in @ SV283 @ SV301 )
        = $false )
      | ( ( in @ SV283 @ ( subset_complement @ SV246 @ SV301 ) )
        = $false )
      | ( ( element @ SV301 @ ( powerset @ SV246 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1928]) ).

thf(2001,plain,
    ! [SV256: $i,SV292: $i,SV303: $i] :
      ( ( ( empty @ SV303 )
        = $false )
      | ( ( element @ SV292 @ ( powerset @ SV303 ) )
        = $false )
      | ( ( in @ SV256 @ SV292 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1930]) ).

thf(2002,plain,
    ! [SV305: $i,SV379: $i] :
      ( ( ( in @ SV379 @ SV305 )
        = $false )
      | ( ( SV305 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1931]) ).

thf(2003,plain,
    ! [SV380: $i] :
      ( ( ( empty @ SV380 )
        = $true )
      | ( ( ! [SY2600: $i] :
              ( ~ ( element @ SY2600 @ SV380 )
              | ( in @ SY2600 @ SV380 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1932]) ).

thf(2004,plain,
    ! [SV381: $i] :
      ( ( ( empty @ SV381 )
        = $true )
      | ( ( ! [SY2601: $i] :
              ( ~ ( in @ SY2601 @ SV381 )
              | ( element @ SY2601 @ SV381 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1933]) ).

thf(2005,plain,
    ! [SV382: $i] :
      ( ( ( ~ ( empty @ SV382 ) )
        = $true )
      | ( ( ! [SY2602: $i] :
              ( ~ ( element @ SY2602 @ SV382 )
              | ( empty @ SY2602 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1934]) ).

thf(2006,plain,
    ! [SV383: $i] :
      ( ( ( ~ ( empty @ SV383 ) )
        = $true )
      | ( ( ! [SY2603: $i] :
              ( ~ ( empty @ SY2603 )
              | ( element @ SY2603 @ SV383 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1935]) ).

thf(2007,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( ~ ( ( ( sK30_C @ SV328 @ SV306 )
               != SV306 )
              | ~ ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) ) )
        = $false )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1936]) ).

thf(2008,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( ~ ( ( ( sK30_C @ SV328 @ SV306 )
                = SV306 )
              | ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) ) )
        = $false )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1936]) ).

thf(2009,plain,
    ! [SV329: $i,SV307: $i] :
      ( ( ( ~ ! [SY2536: $i] :
                ( ( SY2536 != SV307 )
                | ( in @ SY2536 @ SV329 ) )
          | ~ ! [SY2537: $i] :
                ( ~ ( in @ SY2537 @ SV329 )
                | ( SY2537 = SV307 ) ) )
        = $false )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1937]) ).

thf(2010,plain,
    ! [SV308: $i,SV330: $i] :
      ( ( ( ~ ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV308 ) )
        = $false )
      | ( ( disjoint @ SV308 @ SV330 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1938]) ).

thf(2011,plain,
    ! [SV308: $i,SV330: $i] :
      ( ( ( ~ ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV330 ) )
        = $false )
      | ( ( disjoint @ SV308 @ SV330 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1938]) ).

thf(2012,plain,
    ! [SV331: $i,SV309: $i,SV384: $i] :
      ( ( ( ~ ( in @ SV384 @ SV309 ) )
        = $true )
      | ( ( ~ ( in @ SV384 @ SV331 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV309 @ SV331 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1939]) ).

thf(2013,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ~ ( ! [SY2539: $i] :
                  ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SY2539 )
                  | ~ ( in @ SY2539 @ SV310 ) )
              | ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) ) )
        = $false )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1940]) ).

thf(2014,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ ( sK15_SY2048 @ SV332 @ SV310 ) )
                  | ~ ( in @ ( sK15_SY2048 @ SV332 @ SV310 ) @ SV310 ) )
              | ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) ) )
        = $false )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1940]) ).

thf(2015,plain,
    ! [SV333: $i,SV311: $i] :
      ( ( ( ~ ! [SY2540: $i] :
                ( ! [SY2515: $i] :
                    ( ~ ( in @ SY2540 @ SY2515 )
                    | ~ ( in @ SY2515 @ SV311 ) )
                | ( in @ SY2540 @ SV333 ) )
          | ~ ! [SY2542: $i] :
                ( ~ ( in @ SY2542 @ SV333 )
                | ~ ( ~ ( in @ SY2542 @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) )
                    | ~ ( in @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) @ SV311 ) ) ) )
        = $false )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1941]) ).

thf(2016,plain,
    ! [SV294: $i,SV258: $i,SV400: $i] :
      ( ( ( ~ ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
          | ~ ( ~ ( element @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
              | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                        | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
                    | ~ ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                        | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
          | ( SV400
            = ( complements_of_subsets @ SV258 @ SV294 ) ) )
        = $true )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1942]) ).

thf(2017,plain,
    ! [SV294: $i,SV258: $i,SV401: $i] :
      ( ( ( ~ ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
          | ( SV401
           != ( complements_of_subsets @ SV258 @ SV294 ) )
          | ~ ( ~ ! [SY2620: $i] :
                    ( ~ ( element @ SY2620 @ ( powerset @ SV258 ) )
                    | ~ ( in @ SY2620 @ SV401 )
                    | ( in @ ( subset_complement @ SV258 @ SY2620 ) @ SV294 ) )
              | ~ ! [SY2621: $i] :
                    ( ~ ( element @ SY2621 @ ( powerset @ SV258 ) )
                    | ~ ( in @ ( subset_complement @ SV258 @ SY2621 ) @ SV294 )
                    | ( in @ SY2621 @ SV401 ) ) ) )
        = $true )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1943]) ).

thf(2018,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
              | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
              | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
          | ~ ~ ( ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
                    | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
                | ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
                    | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) ) ) )
        = $false )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1945]) ).

thf(2019,plain,
    ! [SV335: $i,SV260: $i,SV363: $i] :
      ( ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2578: $i] :
                    ( ~ ( in @ SY2578 @ SV260 )
                    | ~ ( in @ SY2578 @ SV335 )
                    | ( in @ SY2578 @ SV363 ) )
              | ~ ~ ( ~ ! [SY2579: $i] :
                          ( ~ ( in @ SY2579 @ SV363 )
                          | ( in @ SY2579 @ SV260 ) )
                    | ~ ! [SY2580: $i] :
                          ( ~ ( in @ SY2580 @ SV363 )
                          | ( in @ SY2580 @ SV335 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1946]) ).

thf(2020,plain,
    ! [SV261: $i,SV385: $i] :
      ( ( ( ~ ( ~ ( ! [SY2604: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ SY2604 ) @ SV261 )
                  | ~ ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ ( sK18_SY2050 @ SV385 @ SV261 ) ) @ SV261 )
                  | ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) ) ) )
        = $true )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1947]) ).

thf(2021,plain,
    ! [SV261: $i,SV386: $i] :
      ( ( ( ( SV386
           != ( relation_dom @ SV261 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2605: $i] :
                    ( ! [SY2397: $i] :
                        ~ ( in @ ( ordered_pair @ SY2605 @ SY2397 ) @ SV261 )
                    | ( in @ SY2605 @ SV386 ) )
              | ~ ! [SY2607: $i] :
                    ( ~ ( in @ SY2607 @ SV386 )
                    | ( in @ ( ordered_pair @ SY2607 @ ( sK16_D @ SY2607 @ SV386 @ SV261 ) ) @ SV261 ) ) ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1948]) ).

thf(2022,plain,
    ! [SV336: $i,SV364: $i,SV262: $i] :
      ( ( ( ~ ( in @ SV262 @ SV364 ) )
        = $true )
      | ( ( ~ ( in @ SV336 @ SV364 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV262 @ SV336 ) @ SV364 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1949]) ).

thf(2023,plain,
    ! [SV402: $i,SV262: $i] :
      ( ( ! [SY2622: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV262 @ SV402 ) @ SY2622 )
            | ( in @ SV262 @ SY2622 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1950]) ).

thf(2024,plain,
    ! [SV403: $i,SV262: $i] :
      ( ( ! [SY2623: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV262 @ SV403 ) @ SY2623 )
            | ( in @ SV403 @ SY2623 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1951]) ).

thf(2025,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
              | ~ ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) ) )
        = $false )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1952]) ).

thf(2026,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( ~ ( ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
              | ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) ) )
        = $false )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1952]) ).

thf(2027,plain,
    ! [SV313: $i,SV338: $i] :
      ( ( ( ~ ! [SY2549: $i] :
                ( ~ ( in @ SY2549 @ SV338 )
                | ( subset @ SY2549 @ SV313 ) )
          | ~ ! [SY2550: $i] :
                ( ~ ( subset @ SY2550 @ SV313 )
                | ( in @ SY2550 @ SV338 ) ) )
        = $false )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1953]) ).

thf(2028,plain,
    ! [SV387: $i] :
      ( ( ( SV387 = empty_set )
        = $true )
      | ( ( ! [SY2608: $i] :
              ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SY2608 @ SV387 ) @ SV387 )
                          | ~ ~ ( in @ ( sK32_C @ SY2608 @ SV387 ) @ ( sK33_SY2057 @ SY2608 @ SV387 ) ) )
                      | ~ ( in @ ( sK32_C @ SY2608 @ SV387 ) @ SY2608 ) )
                  | ~ ( ! [SY2609: $i] :
                          ( ~ ( in @ SY2609 @ SV387 )
                          | ( in @ ( sK32_C @ SY2608 @ SV387 ) @ SY2609 ) )
                      | ( in @ ( sK32_C @ SY2608 @ SV387 ) @ SY2608 ) ) )
              | ( SY2608
                = ( set_meet @ SV387 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1954]) ).

thf(2029,plain,
    ! [SV388: $i] :
      ( ( ( SV388 = empty_set )
        = $true )
      | ( ( ! [SY2610: $i] :
              ( ( SY2610
               != ( set_meet @ SV388 ) )
              | ~ ( ~ ! [SY2611: $i] :
                        ( ~ ( ~ ( in @ ( sK31_D @ SY2611 @ SY2610 @ SV388 ) @ SV388 )
                            | ~ ~ ( in @ SY2611 @ ( sK31_D @ SY2611 @ SY2610 @ SV388 ) ) )
                        | ( in @ SY2611 @ SY2610 ) )
                  | ~ ! [SY2612: $i] :
                        ( ~ ( in @ SY2612 @ SY2610 )
                        | ! [SY2613: $i] :
                            ( ~ ( in @ SY2613 @ SV388 )
                            | ( in @ SY2612 @ SY2613 ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1955]) ).

thf(2030,plain,
    ! [SV389: $i] :
      ( ( ( ( SV389 != empty_set ) )
        = $true )
      | ( ( ! [SY2614: $i] :
              ( ( SY2614
               != ( set_meet @ SV389 ) )
              | ( SY2614 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1956]) ).

thf(2031,plain,
    ! [SV390: $i] :
      ( ( ( ( SV390 != empty_set ) )
        = $true )
      | ( ( ! [SY2615: $i] :
              ( ( SY2615 != empty_set )
              | ( SY2615
                = ( set_meet @ SV390 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1957]) ).

thf(2032,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                    | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                     != SV263 ) )
                | ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                    | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                     != SV339 ) ) )
          | ~ ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
              | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                = SV263 )
              | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                = SV339 ) ) )
        = $false )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1958]) ).

thf(2033,plain,
    ! [SV340: $i,SV263: $i,SV366: $i] :
      ( ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2581: $i] :
                    ( ~ ( in @ SY2581 @ SV366 )
                    | ( SY2581 = SV263 )
                    | ( SY2581 = SV340 ) )
              | ~ ~ ( ~ ! [SY2582: $i] :
                          ( ( SY2582 != SV263 )
                          | ( in @ SY2582 @ SV366 ) )
                    | ~ ! [SY2583: $i] :
                          ( ( SY2583 != SV340 )
                          | ( in @ SY2583 @ SV366 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1959]) ).

thf(2034,plain,
    ! [SV343: $i,SV264: $i,SV367: $i] :
      ( ( ( relation @ SV367 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV264 @ SV343 ) @ SV367 )
          | ( in @ SV264 @ ( relation_dom @ SV367 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1962]) ).

thf(2035,plain,
    ! [SV344: $i,SV264: $i,SV368: $i] :
      ( ( ( relation @ SV368 )
        = $false )
      | ( ( ~ ( in @ ( ordered_pair @ SV264 @ SV344 ) @ SV368 )
          | ( in @ SV344 @ ( relation_rng @ SV368 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1963]) ).

thf(2036,plain,
    ! [SV265: $i,SV391: $i] :
      ( ( ( ~ ( ~ ( ! [SY2616: $i] :
                      ~ ( in @ ( ordered_pair @ SY2616 @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
                  | ~ ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) )
              | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV391 @ SV265 ) @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
                  | ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) ) ) )
        = $true )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1966]) ).

thf(2037,plain,
    ! [SV265: $i,SV392: $i] :
      ( ( ( ( SV392
           != ( relation_rng @ SV265 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2617: $i] :
                    ( ! [SY2420: $i] :
                        ~ ( in @ ( ordered_pair @ SY2420 @ SY2617 ) @ SV265 )
                    | ( in @ SY2617 @ SV392 ) )
              | ~ ! [SY2619: $i] :
                    ( ~ ( in @ SY2619 @ SV392 )
                    | ( in @ ( ordered_pair @ ( sK9_D @ SY2619 @ SV392 @ SV265 ) @ SY2619 ) @ SV265 ) ) ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1967]) ).

thf(2038,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
        = $false )
      | ( ( ~ ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 ) )
        = $true )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1968]) ).

thf(2039,plain,
    ! [SV267: $i,SV347: $i] :
      ( ( ( subset @ SV347 @ ( sK4_B @ SV267 ) )
        = $false )
      | ( ( are_equipotent @ SV347 @ ( sK4_B @ SV267 ) )
        = $true )
      | ( ( in @ SV347 @ ( sK4_B @ SV267 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1970]) ).

thf(2040,plain,
    ! [SV267: $i,SV404: $i] :
      ( ( ~ ( ~ ! [SY2624: $i] :
                  ( ~ ( subset @ SY2624 @ SV404 )
                  | ( in @ SY2624 @ ( sK5_SY2040 @ SV404 @ SV267 ) ) )
            | ~ ( in @ ( sK5_SY2040 @ SV404 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
        | ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1971]) ).

thf(2041,plain,
    ! [SV267: $i] :
      ( ( ~ ! [SY2426: $i,SY2427: $i] :
              ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
              | ~ ( subset @ SY2427 @ SY2426 )
              | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) )
        | ~ ( in @ SV267 @ ( sK4_B @ SV267 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1972]) ).

thf(2042,plain,
    ! [SV393: $i,SV297: $i,SV369: $i,SV268: $i] :
      ( ( ( ~ ( in @ SV268 @ SV369 )
          | ~ ( in @ SV297 @ SV393 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV369 @ SV393 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1973]) ).

thf(2043,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ! [SY2488: $i] :
            ( ! [SY2489: $i] :
                ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2488 @ SY2489 ) )
            | ( in @ SV268 @ SY2488 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1974]) ).

thf(2044,plain,
    ! [SV297: $i,SV268: $i] :
      ( ( ! [SY2490: $i,SY2491: $i] :
            ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SY2490 @ SY2491 ) )
            | ( in @ SV297 @ SY2491 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1975]) ).

thf(2045,plain,
    ! [SV318: $i] :
      ( ( ( ! [SY2525: $i,SY2526: $i] :
              ( ( sK36_B @ SV318 )
             != ( ordered_pair @ SY2525 @ SY2526 ) ) )
        = $true )
      | ( ( relation @ SV318 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1976]) ).

thf(2046,plain,
    ! [SV318: $i] :
      ( ( ( in @ ( sK36_B @ SV318 ) @ SV318 )
        = $true )
      | ( ( relation @ SV318 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1977]) ).

thf(2047,plain,
    ! [SV319: $i,SV394: $i] :
      ( ( ( SV394
          = ( ordered_pair @ ( sK34_C @ SV394 @ SV319 ) @ ( sK35_SY2059 @ SV394 @ SV319 ) ) )
        = $true )
      | ( ( ~ ( in @ SV394 @ SV319 ) )
        = $true )
      | ( ( relation @ SV319 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1978]) ).

thf(2048,plain,
    ! [SV320: $i,SV348: $i] :
      ( ( ( in @ SV348 @ SV320 )
        = $false )
      | ( ( ( set_difference @ SV320 @ ( singleton @ SV348 ) )
          = SV320 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1979]) ).

thf(2049,plain,
    ! [SV405: $i,SV370: $i,SV298: $i,SV269: $i] :
      ( ( ( ( ( ordered_pair @ SV269 @ SV298 )
           != ( ordered_pair @ SV370 @ SV405 ) ) )
        = $true )
      | ( ( SV269 = SV370 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1980]) ).

thf(2050,plain,
    ! [SV395: $i,SV371: $i,SV298: $i,SV269: $i] :
      ( ( ( ( ( ordered_pair @ SV269 @ SV298 )
           != ( ordered_pair @ SV371 @ SV395 ) ) )
        = $true )
      | ( ( SV298 = SV395 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1981]) ).

thf(2051,plain,
    ! [SV372: $i,SV350: $i,SV270: $i] :
      ( ( ( ~ ( ! [SY2587: $i,SY2588: $i] :
                  ( ~ ( in @ SY2587 @ SV270 )
                  | ~ ( in @ SY2588 @ SV350 )
                  | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
                   != ( ordered_pair @ SY2587 @ SY2588 ) ) )
              | ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
          | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
                        | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) )
                  | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
                   != ( ordered_pair @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) ) ) )
              | ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) ) )
        = $false )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1982]) ).

thf(2052,plain,
    ! [SV351: $i,SV270: $i,SV373: $i] :
      ( ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2589: $i] :
                    ( ! [SY2563: $i,SY2564: $i] :
                        ( ~ ( in @ SY2563 @ SV270 )
                        | ~ ( in @ SY2564 @ SV351 )
                        | ( SY2589
                         != ( ordered_pair @ SY2563 @ SY2564 ) ) )
                    | ( in @ SY2589 @ SV373 ) )
              | ~ ! [SY2592: $i] :
                    ( ~ ( in @ SY2592 @ SV373 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                              | ~ ( in @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
                        | ( SY2592
                         != ( ordered_pair @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1983]) ).

thf(2053,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                    | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) )
                | ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                    | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) )
          | ~ ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
              | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 )
              | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) )
        = $false )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1984]) ).

thf(2054,plain,
    ! [SV353: $i,SV271: $i,SV375: $i] :
      ( ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2593: $i] :
                    ( ~ ( in @ SY2593 @ SV375 )
                    | ( in @ SY2593 @ SV271 )
                    | ( in @ SY2593 @ SV353 ) )
              | ~ ~ ( ~ ! [SY2594: $i] :
                          ( ~ ( in @ SY2594 @ SV271 )
                          | ( in @ SY2594 @ SV375 ) )
                    | ~ ! [SY2595: $i] :
                          ( ~ ( in @ SY2595 @ SV353 )
                          | ( in @ SY2595 @ SV375 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1985]) ).

thf(2055,plain,
    ! [SV272: $i,SV354: $i] :
      ( ( ( subset @ SV354 @ ( sK39_B @ SV272 ) )
        = $false )
      | ( ( are_equipotent @ SV354 @ ( sK39_B @ SV272 ) )
        = $true )
      | ( ( in @ SV354 @ ( sK39_B @ SV272 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1986]) ).

thf(2056,plain,
    ! [SV272: $i,SV406: $i] :
      ( ( ~ ( in @ SV406 @ ( sK39_B @ SV272 ) )
        | ( in @ ( powerset @ SV406 ) @ ( sK39_B @ SV272 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1987]) ).

thf(2057,plain,
    ! [SV272: $i] :
      ( ( ~ ! [SY2459: $i,SY2460: $i] :
              ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
              | ~ ( subset @ SY2460 @ SY2459 )
              | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) )
        | ~ ( in @ SV272 @ ( sK39_B @ SV272 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1988]) ).

thf(2058,plain,
    ! [SV273: $i,SV396: $i] :
      ( ( ( ~ ( relation @ SV396 ) )
        = $true )
      | ( ( ~ ( subset @ SV273 @ SV396 )
          | ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SV396 ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1989]) ).

thf(2059,plain,
    ! [SV273: $i,SV397: $i] :
      ( ( ( ~ ( relation @ SV397 ) )
        = $true )
      | ( ( ~ ( subset @ SV273 @ SV397 )
          | ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SV397 ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1990]) ).

thf(2060,plain,
    ! [SV398: $i,SV299: $i,SV376: $i,SV274: $i] :
      ( ( ( ~ ( in @ SV274 @ SV376 )
          | ~ ( in @ SV299 @ SV398 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV376 @ SV398 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1991]) ).

thf(2061,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ! [SY2498: $i] :
            ( ! [SY2499: $i] :
                ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2498 @ SY2499 ) )
            | ( in @ SV274 @ SY2498 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1992]) ).

thf(2062,plain,
    ! [SV299: $i,SV274: $i] :
      ( ( ! [SY2500: $i,SY2501: $i] :
            ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SY2500 @ SY2501 ) )
            | ( in @ SV299 @ SY2501 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1993]) ).

thf(2063,plain,
    ! [SV356: $i,SV323: $i,SV399: $i] :
      ( ( ( in @ SV399 @ ( set_intersection2 @ SV323 @ SV356 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV323 @ SV356 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1994]) ).

thf(2064,plain,
    ! [SV324: $i,SV357: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV324 ) )
        = $false )
      | ( ( subset @ SV324 @ SV357 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1995]) ).

thf(2065,plain,
    ! [SV324: $i,SV357: $i] :
      ( ( ( ~ ~ ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV357 ) )
        = $false )
      | ( ( subset @ SV324 @ SV357 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1995]) ).

thf(2066,plain,
    ! [SV358: $i,SV325: $i,SV407: $i] :
      ( ( ( ~ ( in @ SV407 @ SV325 )
          | ( in @ SV407 @ SV358 ) )
        = $true )
      | ( ( subset @ SV325 @ SV358 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1996]) ).

thf(2067,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
              | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
              | ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
          | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
                    | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
                | ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
                    | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) ) ) )
        = $false )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1997]) ).

thf(2068,plain,
    ! [SV360: $i,SV275: $i,SV378: $i] :
      ( ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2597: $i] :
                    ( ~ ( in @ SY2597 @ SV275 )
                    | ( in @ SY2597 @ SV360 )
                    | ( in @ SY2597 @ SV378 ) )
              | ~ ~ ( ~ ! [SY2598: $i] :
                          ( ~ ( in @ SY2598 @ SV378 )
                          | ( in @ SY2598 @ SV275 ) )
                    | ~ ! [SY2599: $i] :
                          ( ~ ( in @ SY2599 @ SV378 )
                          | ~ ( in @ SY2599 @ SV360 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1998]) ).

thf(2069,plain,
    ! [SV245: $i,SV300: $i,SV361: $i] :
      ( ( ( in @ SV361 @ SV300 )
        = $true )
      | ( ( in @ SV361 @ ( subset_complement @ SV245 @ SV300 ) )
        = $true )
      | ( ( element @ SV361 @ SV245 )
        = $false )
      | ( ( element @ SV300 @ ( powerset @ SV245 ) )
        = $false )
      | ( ( SV245 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1999]) ).

thf(2070,plain,
    ! [SV380: $i,SV408: $i] :
      ( ( ( ~ ( element @ SV408 @ SV380 )
          | ( in @ SV408 @ SV380 ) )
        = $true )
      | ( ( empty @ SV380 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2003]) ).

thf(2071,plain,
    ! [SV381: $i,SV409: $i] :
      ( ( ( ~ ( in @ SV409 @ SV381 )
          | ( element @ SV409 @ SV381 ) )
        = $true )
      | ( ( empty @ SV381 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2004]) ).

thf(2072,plain,
    ! [SV382: $i] :
      ( ( ( empty @ SV382 )
        = $false )
      | ( ( ! [SY2602: $i] :
              ( ~ ( element @ SY2602 @ SV382 )
              | ( empty @ SY2602 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2005]) ).

thf(2073,plain,
    ! [SV383: $i] :
      ( ( ( empty @ SV383 )
        = $false )
      | ( ( ! [SY2603: $i] :
              ( ~ ( empty @ SY2603 )
              | ( element @ SY2603 @ SV383 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2006]) ).

thf(2074,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( ( ( sK30_C @ SV328 @ SV306 )
           != SV306 )
          | ~ ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) )
        = $true )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2007]) ).

thf(2075,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( ( ( sK30_C @ SV328 @ SV306 )
            = SV306 )
          | ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) )
        = $true )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2008]) ).

thf(2076,plain,
    ! [SV329: $i,SV307: $i] :
      ( ( ( ~ ! [SY2536: $i] :
                ( ( SY2536 != SV307 )
                | ( in @ SY2536 @ SV329 ) ) )
        = $false )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2009]) ).

thf(2077,plain,
    ! [SV307: $i,SV329: $i] :
      ( ( ( ~ ! [SY2537: $i] :
                ( ~ ( in @ SY2537 @ SV329 )
                | ( SY2537 = SV307 ) ) )
        = $false )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2009]) ).

thf(2078,plain,
    ! [SV308: $i,SV330: $i] :
      ( ( ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV308 )
        = $true )
      | ( ( disjoint @ SV308 @ SV330 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2010]) ).

thf(2079,plain,
    ! [SV308: $i,SV330: $i] :
      ( ( ( in @ ( sK38_C @ SV330 @ SV308 ) @ SV330 )
        = $true )
      | ( ( disjoint @ SV308 @ SV330 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2011]) ).

thf(2080,plain,
    ! [SV331: $i,SV309: $i,SV384: $i] :
      ( ( ( in @ SV384 @ SV309 )
        = $false )
      | ( ( ~ ( in @ SV384 @ SV331 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV309 @ SV331 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2012]) ).

thf(2081,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ! [SY2539: $i] :
              ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SY2539 )
              | ~ ( in @ SY2539 @ SV310 ) )
          | ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2013]) ).

thf(2082,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ ( sK15_SY2048 @ SV332 @ SV310 ) )
              | ~ ( in @ ( sK15_SY2048 @ SV332 @ SV310 ) @ SV310 ) )
          | ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2014]) ).

thf(2083,plain,
    ! [SV333: $i,SV311: $i] :
      ( ( ( ~ ! [SY2540: $i] :
                ( ! [SY2515: $i] :
                    ( ~ ( in @ SY2540 @ SY2515 )
                    | ~ ( in @ SY2515 @ SV311 ) )
                | ( in @ SY2540 @ SV333 ) ) )
        = $false )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2015]) ).

thf(2084,plain,
    ! [SV311: $i,SV333: $i] :
      ( ( ( ~ ! [SY2542: $i] :
                ( ~ ( in @ SY2542 @ SV333 )
                | ~ ( ~ ( in @ SY2542 @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) )
                    | ~ ( in @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) @ SV311 ) ) ) )
        = $false )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2015]) ).

thf(2085,plain,
    ! [SV294: $i,SV258: $i,SV400: $i] :
      ( ( ( ~ ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ( element @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
              | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                        | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
                    | ~ ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                        | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
          | ( SV400
            = ( complements_of_subsets @ SV258 @ SV294 ) ) )
        = $true )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2016]) ).

thf(2086,plain,
    ! [SV294: $i,SV258: $i,SV401: $i] :
      ( ( ( ~ ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) ) )
        = $true )
      | ( ( ( SV401
           != ( complements_of_subsets @ SV258 @ SV294 ) )
          | ~ ( ~ ! [SY2620: $i] :
                    ( ~ ( element @ SY2620 @ ( powerset @ SV258 ) )
                    | ~ ( in @ SY2620 @ SV401 )
                    | ( in @ ( subset_complement @ SV258 @ SY2620 ) @ SV294 ) )
              | ~ ! [SY2621: $i] :
                    ( ~ ( element @ SY2621 @ ( powerset @ SV258 ) )
                    | ~ ( in @ ( subset_complement @ SV258 @ SY2621 ) @ SV294 )
                    | ( in @ SY2621 @ SV401 ) ) ) )
        = $true )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2017]) ).

thf(2087,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
              | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
              | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) ) )
        = $false )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2018]) ).

thf(2088,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
                    | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
                | ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
                    | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) ) ) )
        = $false )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2018]) ).

thf(2089,plain,
    ! [SV363: $i,SV335: $i,SV260: $i] :
      ( ( ( ~ ! [SY2578: $i] :
                ( ~ ( in @ SY2578 @ SV260 )
                | ~ ( in @ SY2578 @ SV335 )
                | ( in @ SY2578 @ SV363 ) )
          | ~ ~ ( ~ ! [SY2579: $i] :
                      ( ~ ( in @ SY2579 @ SV363 )
                      | ( in @ SY2579 @ SV260 ) )
                | ~ ! [SY2580: $i] :
                      ( ~ ( in @ SY2580 @ SV363 )
                      | ( in @ SY2580 @ SV335 ) ) ) )
        = $false )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2019]) ).

thf(2090,plain,
    ! [SV261: $i,SV385: $i] :
      ( ( ( ~ ( ! [SY2604: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ SY2604 ) @ SV261 )
              | ~ ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ ( sK18_SY2050 @ SV385 @ SV261 ) ) @ SV261 )
              | ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) ) )
        = $false )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2020]) ).

thf(2091,plain,
    ! [SV261: $i,SV386: $i] :
      ( ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2605: $i] :
                    ( ! [SY2397: $i] :
                        ~ ( in @ ( ordered_pair @ SY2605 @ SY2397 ) @ SV261 )
                    | ( in @ SY2605 @ SV386 ) )
              | ~ ! [SY2607: $i] :
                    ( ~ ( in @ SY2607 @ SV386 )
                    | ( in @ ( ordered_pair @ SY2607 @ ( sK16_D @ SY2607 @ SV386 @ SV261 ) ) @ SV261 ) ) ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2021]) ).

thf(2092,plain,
    ! [SV336: $i,SV364: $i,SV262: $i] :
      ( ( ( in @ SV262 @ SV364 )
        = $false )
      | ( ( ~ ( in @ SV336 @ SV364 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV262 @ SV336 ) @ SV364 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2022]) ).

thf(2093,plain,
    ! [SV410: $i,SV402: $i,SV262: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV262 @ SV402 ) @ SV410 )
        | ( in @ SV262 @ SV410 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2023]) ).

thf(2094,plain,
    ! [SV411: $i,SV403: $i,SV262: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV262 @ SV403 ) @ SV411 )
        | ( in @ SV403 @ SV411 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2024]) ).

thf(2095,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( ~ ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
          | ~ ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) )
        = $true )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2025]) ).

thf(2096,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
          | ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) )
        = $true )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2026]) ).

thf(2097,plain,
    ! [SV313: $i,SV338: $i] :
      ( ( ( ~ ! [SY2549: $i] :
                ( ~ ( in @ SY2549 @ SV338 )
                | ( subset @ SY2549 @ SV313 ) ) )
        = $false )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2027]) ).

thf(2098,plain,
    ! [SV338: $i,SV313: $i] :
      ( ( ( ~ ! [SY2550: $i] :
                ( ~ ( subset @ SY2550 @ SV313 )
                | ( in @ SY2550 @ SV338 ) ) )
        = $false )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2027]) ).

thf(2099,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 )
                      | ~ ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) ) )
                  | ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
              | ~ ( ! [SY2625: $i] :
                      ( ~ ( in @ SY2625 @ SV387 )
                      | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SY2625 ) )
                  | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) ) )
          | ( SV412
            = ( set_meet @ SV387 ) ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2028]) ).

thf(2100,plain,
    ! [SV388: $i,SV413: $i] :
      ( ( ( ( SV413
           != ( set_meet @ SV388 ) )
          | ~ ( ~ ! [SY2626: $i] :
                    ( ~ ( ~ ( in @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) @ SV388 )
                        | ~ ~ ( in @ SY2626 @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) ) )
                    | ( in @ SY2626 @ SV413 ) )
              | ~ ! [SY2627: $i] :
                    ( ~ ( in @ SY2627 @ SV413 )
                    | ! [SY2613: $i] :
                        ( ~ ( in @ SY2613 @ SV388 )
                        | ( in @ SY2627 @ SY2613 ) ) ) ) )
        = $true )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2029]) ).

thf(2101,plain,
    ! [SV389: $i] :
      ( ( ( SV389 = empty_set )
        = $false )
      | ( ( ! [SY2614: $i] :
              ( ( SY2614
               != ( set_meet @ SV389 ) )
              | ( SY2614 = empty_set ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2030]) ).

thf(2102,plain,
    ! [SV390: $i] :
      ( ( ( SV390 = empty_set )
        = $false )
      | ( ( ! [SY2615: $i] :
              ( ( SY2615 != empty_set )
              | ( SY2615
                = ( set_meet @ SV390 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2031]) ).

thf(2103,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                    | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                     != SV263 ) )
                | ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                    | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                     != SV339 ) ) ) )
        = $false )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2032]) ).

thf(2104,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
              | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                = SV263 )
              | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                = SV339 ) ) )
        = $false )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2032]) ).

thf(2105,plain,
    ! [SV340: $i,SV263: $i,SV366: $i] :
      ( ( ( ~ ! [SY2581: $i] :
                ( ~ ( in @ SY2581 @ SV366 )
                | ( SY2581 = SV263 )
                | ( SY2581 = SV340 ) )
          | ~ ~ ( ~ ! [SY2582: $i] :
                      ( ( SY2582 != SV263 )
                      | ( in @ SY2582 @ SV366 ) )
                | ~ ! [SY2583: $i] :
                      ( ( SY2583 != SV340 )
                      | ( in @ SY2583 @ SV366 ) ) ) )
        = $false )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2033]) ).

thf(2106,plain,
    ! [SV367: $i,SV343: $i,SV264: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV264 @ SV343 ) @ SV367 ) )
        = $true )
      | ( ( in @ SV264 @ ( relation_dom @ SV367 ) )
        = $true )
      | ( ( relation @ SV367 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2034]) ).

thf(2107,plain,
    ! [SV368: $i,SV344: $i,SV264: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV264 @ SV344 ) @ SV368 ) )
        = $true )
      | ( ( in @ SV344 @ ( relation_rng @ SV368 ) )
        = $true )
      | ( ( relation @ SV368 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2035]) ).

thf(2108,plain,
    ! [SV265: $i,SV391: $i] :
      ( ( ( ~ ( ! [SY2616: $i] :
                  ~ ( in @ ( ordered_pair @ SY2616 @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
              | ~ ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) )
          | ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV391 @ SV265 ) @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
              | ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) ) )
        = $false )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2036]) ).

thf(2109,plain,
    ! [SV265: $i,SV392: $i] :
      ( ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2617: $i] :
                    ( ! [SY2420: $i] :
                        ~ ( in @ ( ordered_pair @ SY2420 @ SY2617 ) @ SV265 )
                    | ( in @ SY2617 @ SV392 ) )
              | ~ ! [SY2619: $i] :
                    ( ~ ( in @ SY2619 @ SV392 )
                    | ( in @ ( ordered_pair @ ( sK9_D @ SY2619 @ SV392 @ SV265 ) @ SY2619 ) @ SV265 ) ) ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2037]) ).

thf(2110,plain,
    ! [SV266: $i,SV296: $i] :
      ( ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV296 )
        = $false )
      | ( ( in @ ( sK6_C @ SV296 @ SV266 ) @ SV266 )
        = $false )
      | ( ( SV266 = SV296 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2038]) ).

thf(2111,plain,
    ! [SV267: $i,SV404: $i] :
      ( ( ( ~ ( ~ ! [SY2624: $i] :
                    ( ~ ( subset @ SY2624 @ SV404 )
                    | ( in @ SY2624 @ ( sK5_SY2040 @ SV404 @ SV267 ) ) )
              | ~ ( in @ ( sK5_SY2040 @ SV404 @ SV267 ) @ ( sK4_B @ SV267 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2040]) ).

thf(2112,plain,
    ! [SV267: $i] :
      ( ( ~ ! [SY2426: $i,SY2427: $i] :
              ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
              | ~ ( subset @ SY2427 @ SY2426 )
              | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2041]) ).

thf(2113,plain,
    ! [SV267: $i] :
      ( ( ~ ( in @ SV267 @ ( sK4_B @ SV267 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2041]) ).

thf(2114,plain,
    ! [SV393: $i,SV297: $i,SV369: $i,SV268: $i] :
      ( ( ( ~ ( in @ SV268 @ SV369 ) )
        = $true )
      | ( ( ~ ( in @ SV297 @ SV393 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV369 @ SV393 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2042]) ).

thf(2115,plain,
    ! [SV414: $i,SV297: $i,SV268: $i] :
      ( ( ! [SY2629: $i] :
            ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV414 @ SY2629 ) )
        | ( in @ SV268 @ SV414 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2043]) ).

thf(2116,plain,
    ! [SV415: $i,SV297: $i,SV268: $i] :
      ( ( ! [SY2630: $i] :
            ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV415 @ SY2630 ) )
            | ( in @ SV297 @ SY2630 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2044]) ).

thf(2117,plain,
    ! [SV416: $i,SV318: $i] :
      ( ( ( ! [SY2631: $i] :
              ( ( sK36_B @ SV318 )
             != ( ordered_pair @ SV416 @ SY2631 ) ) )
        = $true )
      | ( ( relation @ SV318 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2045]) ).

thf(2118,plain,
    ! [SV319: $i,SV394: $i] :
      ( ( ( in @ SV394 @ SV319 )
        = $false )
      | ( ( SV394
          = ( ordered_pair @ ( sK34_C @ SV394 @ SV319 ) @ ( sK35_SY2059 @ SV394 @ SV319 ) ) )
        = $true )
      | ( ( relation @ SV319 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2047]) ).

thf(2119,plain,
    ! [SV405: $i,SV370: $i,SV298: $i,SV269: $i] :
      ( ( ( ( ordered_pair @ SV269 @ SV298 )
          = ( ordered_pair @ SV370 @ SV405 ) )
        = $false )
      | ( ( SV269 = SV370 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2049]) ).

thf(2120,plain,
    ! [SV395: $i,SV371: $i,SV298: $i,SV269: $i] :
      ( ( ( ( ordered_pair @ SV269 @ SV298 )
          = ( ordered_pair @ SV371 @ SV395 ) )
        = $false )
      | ( ( SV298 = SV395 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2050]) ).

thf(2121,plain,
    ! [SV372: $i,SV350: $i,SV270: $i] :
      ( ( ( ~ ( ! [SY2587: $i,SY2588: $i] :
                  ( ~ ( in @ SY2587 @ SV270 )
                  | ~ ( in @ SY2588 @ SV350 )
                  | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
                   != ( ordered_pair @ SY2587 @ SY2588 ) ) )
              | ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) ) )
        = $false )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2051]) ).

thf(2122,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
                        | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) )
                  | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
                   != ( ordered_pair @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) ) ) )
              | ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) ) )
        = $false )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2051]) ).

thf(2123,plain,
    ! [SV373: $i,SV351: $i,SV270: $i] :
      ( ( ( ~ ! [SY2589: $i] :
                ( ! [SY2563: $i,SY2564: $i] :
                    ( ~ ( in @ SY2563 @ SV270 )
                    | ~ ( in @ SY2564 @ SV351 )
                    | ( SY2589
                     != ( ordered_pair @ SY2563 @ SY2564 ) ) )
                | ( in @ SY2589 @ SV373 ) )
          | ~ ! [SY2592: $i] :
                ( ~ ( in @ SY2592 @ SV373 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                          | ~ ( in @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
                    | ( SY2592
                     != ( ordered_pair @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) ) ) ) ) )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2052]) ).

thf(2124,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                    | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) )
                | ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                    | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) ) )
        = $false )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2053]) ).

thf(2125,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
              | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 )
              | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) )
        = $false )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2053]) ).

thf(2126,plain,
    ! [SV353: $i,SV271: $i,SV375: $i] :
      ( ( ( ~ ! [SY2593: $i] :
                ( ~ ( in @ SY2593 @ SV375 )
                | ( in @ SY2593 @ SV271 )
                | ( in @ SY2593 @ SV353 ) )
          | ~ ~ ( ~ ! [SY2594: $i] :
                      ( ~ ( in @ SY2594 @ SV271 )
                      | ( in @ SY2594 @ SV375 ) )
                | ~ ! [SY2595: $i] :
                      ( ~ ( in @ SY2595 @ SV353 )
                      | ( in @ SY2595 @ SV375 ) ) ) )
        = $false )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2054]) ).

thf(2127,plain,
    ! [SV272: $i,SV406: $i] :
      ( ( ( ~ ( in @ SV406 @ ( sK39_B @ SV272 ) ) )
        = $true )
      | ( ( in @ ( powerset @ SV406 ) @ ( sK39_B @ SV272 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2056]) ).

thf(2128,plain,
    ! [SV272: $i] :
      ( ( ~ ! [SY2459: $i,SY2460: $i] :
              ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
              | ~ ( subset @ SY2460 @ SY2459 )
              | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2057]) ).

thf(2129,plain,
    ! [SV272: $i] :
      ( ( ~ ( in @ SV272 @ ( sK39_B @ SV272 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[2057]) ).

thf(2130,plain,
    ! [SV273: $i,SV396: $i] :
      ( ( ( relation @ SV396 )
        = $false )
      | ( ( ~ ( subset @ SV273 @ SV396 )
          | ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SV396 ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2058]) ).

thf(2131,plain,
    ! [SV273: $i,SV397: $i] :
      ( ( ( relation @ SV397 )
        = $false )
      | ( ( ~ ( subset @ SV273 @ SV397 )
          | ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SV397 ) ) )
        = $true )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2059]) ).

thf(2132,plain,
    ! [SV398: $i,SV299: $i,SV376: $i,SV274: $i] :
      ( ( ( ~ ( in @ SV274 @ SV376 ) )
        = $true )
      | ( ( ~ ( in @ SV299 @ SV398 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV376 @ SV398 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2060]) ).

thf(2133,plain,
    ! [SV417: $i,SV299: $i,SV274: $i] :
      ( ( ! [SY2632: $i] :
            ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV417 @ SY2632 ) )
        | ( in @ SV274 @ SV417 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2061]) ).

thf(2134,plain,
    ! [SV418: $i,SV299: $i,SV274: $i] :
      ( ( ! [SY2633: $i] :
            ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV418 @ SY2633 ) )
            | ( in @ SV299 @ SY2633 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2062]) ).

thf(2135,plain,
    ! [SV399: $i,SV356: $i,SV323: $i] :
      ( ( ( disjoint @ SV323 @ SV356 )
        = $false )
      | ( ( in @ SV399 @ ( set_intersection2 @ SV323 @ SV356 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2063]) ).

thf(2136,plain,
    ! [SV324: $i,SV357: $i] :
      ( ( ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV324 )
        = $true )
      | ( ( subset @ SV324 @ SV357 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2064]) ).

thf(2137,plain,
    ! [SV324: $i,SV357: $i] :
      ( ( ( ~ ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV357 ) )
        = $true )
      | ( ( subset @ SV324 @ SV357 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2065]) ).

thf(2138,plain,
    ! [SV358: $i,SV325: $i,SV407: $i] :
      ( ( ( ~ ( in @ SV407 @ SV325 ) )
        = $true )
      | ( ( in @ SV407 @ SV358 )
        = $true )
      | ( ( subset @ SV325 @ SV358 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2066]) ).

thf(2139,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
              | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
              | ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) ) )
        = $false )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2067]) ).

thf(2140,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
                    | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
                | ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
                    | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) ) ) )
        = $false )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2067]) ).

thf(2141,plain,
    ! [SV378: $i,SV360: $i,SV275: $i] :
      ( ( ( ~ ! [SY2597: $i] :
                ( ~ ( in @ SY2597 @ SV275 )
                | ( in @ SY2597 @ SV360 )
                | ( in @ SY2597 @ SV378 ) )
          | ~ ~ ( ~ ! [SY2598: $i] :
                      ( ~ ( in @ SY2598 @ SV378 )
                      | ( in @ SY2598 @ SV275 ) )
                | ~ ! [SY2599: $i] :
                      ( ~ ( in @ SY2599 @ SV378 )
                      | ~ ( in @ SY2599 @ SV360 ) ) ) )
        = $false )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2068]) ).

thf(2142,plain,
    ! [SV380: $i,SV408: $i] :
      ( ( ( ~ ( element @ SV408 @ SV380 ) )
        = $true )
      | ( ( in @ SV408 @ SV380 )
        = $true )
      | ( ( empty @ SV380 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2070]) ).

thf(2143,plain,
    ! [SV381: $i,SV409: $i] :
      ( ( ( ~ ( in @ SV409 @ SV381 ) )
        = $true )
      | ( ( element @ SV409 @ SV381 )
        = $true )
      | ( ( empty @ SV381 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2071]) ).

thf(2144,plain,
    ! [SV382: $i,SV419: $i] :
      ( ( ( ~ ( element @ SV419 @ SV382 )
          | ( empty @ SV419 ) )
        = $true )
      | ( ( empty @ SV382 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2072]) ).

thf(2145,plain,
    ! [SV383: $i,SV420: $i] :
      ( ( ( ~ ( empty @ SV420 )
          | ( element @ SV420 @ SV383 ) )
        = $true )
      | ( ( empty @ SV383 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2073]) ).

thf(2146,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( ( ( sK30_C @ SV328 @ SV306 )
           != SV306 ) )
        = $true )
      | ( ( ~ ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) )
        = $true )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2074]) ).

thf(2147,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( ( sK30_C @ SV328 @ SV306 )
          = SV306 )
        = $true )
      | ( ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 )
        = $true )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2075]) ).

thf(2148,plain,
    ! [SV329: $i,SV307: $i] :
      ( ( ( ! [SY2536: $i] :
              ( ( SY2536 != SV307 )
              | ( in @ SY2536 @ SV329 ) ) )
        = $true )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2076]) ).

thf(2149,plain,
    ! [SV307: $i,SV329: $i] :
      ( ( ( ! [SY2537: $i] :
              ( ~ ( in @ SY2537 @ SV329 )
              | ( SY2537 = SV307 ) ) )
        = $true )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2077]) ).

thf(2150,plain,
    ! [SV309: $i,SV331: $i,SV384: $i] :
      ( ( ( in @ SV384 @ SV331 )
        = $false )
      | ( ( in @ SV384 @ SV309 )
        = $false )
      | ( ( ~ ( disjoint @ SV309 @ SV331 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2080]) ).

thf(2151,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ! [SY2539: $i] :
              ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SY2539 )
              | ~ ( in @ SY2539 @ SV310 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2081]) ).

thf(2152,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ ( sK15_SY2048 @ SV332 @ SV310 ) )
              | ~ ( in @ ( sK15_SY2048 @ SV332 @ SV310 ) @ SV310 ) ) )
        = $true )
      | ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2082]) ).

thf(2153,plain,
    ! [SV333: $i,SV311: $i] :
      ( ( ( ! [SY2540: $i] :
              ( ! [SY2515: $i] :
                  ( ~ ( in @ SY2540 @ SY2515 )
                  | ~ ( in @ SY2515 @ SV311 ) )
              | ( in @ SY2540 @ SV333 ) ) )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2083]) ).

thf(2154,plain,
    ! [SV311: $i,SV333: $i] :
      ( ( ( ! [SY2542: $i] :
              ( ~ ( in @ SY2542 @ SV333 )
              | ~ ( ~ ( in @ SY2542 @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) )
                  | ~ ( in @ ( sK13_D @ SY2542 @ SV333 @ SV311 ) @ SV311 ) ) ) )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2084]) ).

thf(2155,plain,
    ! [SV294: $i,SV258: $i,SV400: $i] :
      ( ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( ~ ( ~ ( element @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
              | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                        | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
                    | ~ ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                        | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
          | ( SV400
            = ( complements_of_subsets @ SV258 @ SV294 ) ) )
        = $true )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2085]) ).

thf(2156,plain,
    ! [SV294: $i,SV258: $i,SV401: $i] :
      ( ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( ( SV401
           != ( complements_of_subsets @ SV258 @ SV294 ) )
          | ~ ( ~ ! [SY2620: $i] :
                    ( ~ ( element @ SY2620 @ ( powerset @ SV258 ) )
                    | ~ ( in @ SY2620 @ SV401 )
                    | ( in @ ( subset_complement @ SV258 @ SY2620 ) @ SV294 ) )
              | ~ ! [SY2621: $i] :
                    ( ~ ( element @ SY2621 @ ( powerset @ SV258 ) )
                    | ~ ( in @ ( subset_complement @ SV258 @ SY2621 ) @ SV294 )
                    | ( in @ SY2621 @ SV401 ) ) ) )
        = $true )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2086]) ).

thf(2157,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
          | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
          | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2087]) ).

thf(2158,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
                  | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
              | ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
                  | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) ) ) )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2088]) ).

thf(2159,plain,
    ! [SV363: $i,SV335: $i,SV260: $i] :
      ( ( ( ~ ! [SY2578: $i] :
                ( ~ ( in @ SY2578 @ SV260 )
                | ~ ( in @ SY2578 @ SV335 )
                | ( in @ SY2578 @ SV363 ) ) )
        = $false )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2089]) ).

thf(2160,plain,
    ! [SV335: $i,SV260: $i,SV363: $i] :
      ( ( ( ~ ~ ( ~ ! [SY2579: $i] :
                      ( ~ ( in @ SY2579 @ SV363 )
                      | ( in @ SY2579 @ SV260 ) )
                | ~ ! [SY2580: $i] :
                      ( ~ ( in @ SY2580 @ SV363 )
                      | ( in @ SY2580 @ SV335 ) ) ) )
        = $false )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2089]) ).

thf(2161,plain,
    ! [SV261: $i,SV385: $i] :
      ( ( ( ~ ( ! [SY2604: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ SY2604 ) @ SV261 )
              | ~ ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) ) )
        = $false )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2090]) ).

thf(2162,plain,
    ! [SV261: $i,SV385: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ ( sK18_SY2050 @ SV385 @ SV261 ) ) @ SV261 )
              | ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) ) )
        = $false )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2090]) ).

thf(2163,plain,
    ! [SV386: $i,SV261: $i] :
      ( ( ( ~ ! [SY2605: $i] :
                ( ! [SY2397: $i] :
                    ~ ( in @ ( ordered_pair @ SY2605 @ SY2397 ) @ SV261 )
                | ( in @ SY2605 @ SV386 ) )
          | ~ ! [SY2607: $i] :
                ( ~ ( in @ SY2607 @ SV386 )
                | ( in @ ( ordered_pair @ SY2607 @ ( sK16_D @ SY2607 @ SV386 @ SV261 ) ) @ SV261 ) ) )
        = $false )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2091]) ).

thf(2164,plain,
    ! [SV262: $i,SV364: $i,SV336: $i] :
      ( ( ( in @ SV336 @ SV364 )
        = $false )
      | ( ( in @ SV262 @ SV364 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV262 @ SV336 ) @ SV364 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2092]) ).

thf(2165,plain,
    ! [SV410: $i,SV402: $i,SV262: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV262 @ SV402 ) @ SV410 ) )
        = $true )
      | ( ( in @ SV262 @ SV410 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2093]) ).

thf(2166,plain,
    ! [SV411: $i,SV403: $i,SV262: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV262 @ SV403 ) @ SV411 ) )
        = $true )
      | ( ( in @ SV403 @ SV411 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2094]) ).

thf(2167,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( ~ ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) )
        = $true )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2095]) ).

thf(2168,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
        = $true )
      | ( ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 )
        = $true )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2096]) ).

thf(2169,plain,
    ! [SV313: $i,SV338: $i] :
      ( ( ( ! [SY2549: $i] :
              ( ~ ( in @ SY2549 @ SV338 )
              | ( subset @ SY2549 @ SV313 ) ) )
        = $true )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2097]) ).

thf(2170,plain,
    ! [SV338: $i,SV313: $i] :
      ( ( ( ! [SY2550: $i] :
              ( ~ ( subset @ SY2550 @ SV313 )
              | ( in @ SY2550 @ SV338 ) ) )
        = $true )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2098]) ).

thf(2171,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 )
                      | ~ ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) ) )
                  | ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
              | ~ ( ! [SY2625: $i] :
                      ( ~ ( in @ SY2625 @ SV387 )
                      | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SY2625 ) )
                  | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) ) ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2099]) ).

thf(2172,plain,
    ! [SV388: $i,SV413: $i] :
      ( ( ( ( SV413
           != ( set_meet @ SV388 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2626: $i] :
                    ( ~ ( ~ ( in @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) @ SV388 )
                        | ~ ~ ( in @ SY2626 @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) ) )
                    | ( in @ SY2626 @ SV413 ) )
              | ~ ! [SY2627: $i] :
                    ( ~ ( in @ SY2627 @ SV413 )
                    | ! [SY2613: $i] :
                        ( ~ ( in @ SY2613 @ SV388 )
                        | ( in @ SY2627 @ SY2613 ) ) ) ) )
        = $true )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2100]) ).

thf(2173,plain,
    ! [SV389: $i,SV421: $i] :
      ( ( ( ( SV421
           != ( set_meet @ SV389 ) )
          | ( SV421 = empty_set ) )
        = $true )
      | ( ( SV389 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2101]) ).

thf(2174,plain,
    ! [SV390: $i,SV422: $i] :
      ( ( ( ( SV422 != empty_set )
          | ( SV422
            = ( set_meet @ SV390 ) ) )
        = $true )
      | ( ( SV390 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2102]) ).

thf(2175,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                  | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                   != SV263 ) )
              | ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
                  | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
                   != SV339 ) ) ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2103]) ).

thf(2176,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
          | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
            = SV263 )
          | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
            = SV339 ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2104]) ).

thf(2177,plain,
    ! [SV340: $i,SV263: $i,SV366: $i] :
      ( ( ( ~ ! [SY2581: $i] :
                ( ~ ( in @ SY2581 @ SV366 )
                | ( SY2581 = SV263 )
                | ( SY2581 = SV340 ) ) )
        = $false )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2105]) ).

thf(2178,plain,
    ! [SV340: $i,SV366: $i,SV263: $i] :
      ( ( ( ~ ~ ( ~ ! [SY2582: $i] :
                      ( ( SY2582 != SV263 )
                      | ( in @ SY2582 @ SV366 ) )
                | ~ ! [SY2583: $i] :
                      ( ( SY2583 != SV340 )
                      | ( in @ SY2583 @ SV366 ) ) ) )
        = $false )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2105]) ).

thf(2179,plain,
    ! [SV367: $i,SV343: $i,SV264: $i] :
      ( ( ( in @ ( ordered_pair @ SV264 @ SV343 ) @ SV367 )
        = $false )
      | ( ( in @ SV264 @ ( relation_dom @ SV367 ) )
        = $true )
      | ( ( relation @ SV367 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2106]) ).

thf(2180,plain,
    ! [SV368: $i,SV344: $i,SV264: $i] :
      ( ( ( in @ ( ordered_pair @ SV264 @ SV344 ) @ SV368 )
        = $false )
      | ( ( in @ SV344 @ ( relation_rng @ SV368 ) )
        = $true )
      | ( ( relation @ SV368 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2107]) ).

thf(2181,plain,
    ! [SV265: $i,SV391: $i] :
      ( ( ( ~ ( ! [SY2616: $i] :
                  ~ ( in @ ( ordered_pair @ SY2616 @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
              | ~ ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) ) )
        = $false )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2108]) ).

thf(2182,plain,
    ! [SV265: $i,SV391: $i] :
      ( ( ( ~ ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV391 @ SV265 ) @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
              | ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) ) )
        = $false )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2108]) ).

thf(2183,plain,
    ! [SV392: $i,SV265: $i] :
      ( ( ( ~ ! [SY2617: $i] :
                ( ! [SY2420: $i] :
                    ~ ( in @ ( ordered_pair @ SY2420 @ SY2617 ) @ SV265 )
                | ( in @ SY2617 @ SV392 ) )
          | ~ ! [SY2619: $i] :
                ( ~ ( in @ SY2619 @ SV392 )
                | ( in @ ( ordered_pair @ ( sK9_D @ SY2619 @ SV392 @ SV265 ) @ SY2619 ) @ SV265 ) ) )
        = $false )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2109]) ).

thf(2184,plain,
    ! [SV267: $i,SV404: $i] :
      ( ( ( ~ ! [SY2624: $i] :
                ( ~ ( subset @ SY2624 @ SV404 )
                | ( in @ SY2624 @ ( sK5_SY2040 @ SV404 @ SV267 ) ) )
          | ~ ( in @ ( sK5_SY2040 @ SV404 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
        = $false )
      | ( ( ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2111]) ).

thf(2185,plain,
    ! [SV267: $i] :
      ( ( ! [SY2426: $i,SY2427: $i] :
            ( ~ ( in @ SY2426 @ ( sK4_B @ SV267 ) )
            | ~ ( subset @ SY2427 @ SY2426 )
            | ( in @ SY2427 @ ( sK4_B @ SV267 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2112]) ).

thf(2186,plain,
    ! [SV267: $i] :
      ( ( in @ SV267 @ ( sK4_B @ SV267 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2113]) ).

thf(2187,plain,
    ! [SV393: $i,SV297: $i,SV369: $i,SV268: $i] :
      ( ( ( in @ SV268 @ SV369 )
        = $false )
      | ( ( ~ ( in @ SV297 @ SV393 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV369 @ SV393 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2114]) ).

thf(2188,plain,
    ! [SV414: $i,SV297: $i,SV268: $i] :
      ( ( ( ! [SY2629: $i] :
              ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV414 @ SY2629 ) ) )
        = $true )
      | ( ( in @ SV268 @ SV414 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2115]) ).

thf(2189,plain,
    ! [SV423: $i,SV415: $i,SV297: $i,SV268: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV415 @ SV423 ) )
        | ( in @ SV297 @ SV423 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2116]) ).

thf(2190,plain,
    ! [SV424: $i,SV416: $i,SV318: $i] :
      ( ( ( ( ( sK36_B @ SV318 )
           != ( ordered_pair @ SV416 @ SV424 ) ) )
        = $true )
      | ( ( relation @ SV318 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2117]) ).

thf(2191,plain,
    ! [SV372: $i,SV350: $i,SV270: $i] :
      ( ( ( ! [SY2587: $i,SY2588: $i] :
              ( ~ ( in @ SY2587 @ SV270 )
              | ~ ( in @ SY2588 @ SV350 )
              | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
               != ( ordered_pair @ SY2587 @ SY2588 ) ) )
          | ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2121]) ).

thf(2192,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
                    | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) )
              | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
               != ( ordered_pair @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) ) ) )
          | ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2122]) ).

thf(2193,plain,
    ! [SV373: $i,SV351: $i,SV270: $i] :
      ( ( ( ~ ! [SY2589: $i] :
                ( ! [SY2563: $i,SY2564: $i] :
                    ( ~ ( in @ SY2563 @ SV270 )
                    | ~ ( in @ SY2564 @ SV351 )
                    | ( SY2589
                     != ( ordered_pair @ SY2563 @ SY2564 ) ) )
                | ( in @ SY2589 @ SV373 ) ) )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2123]) ).

thf(2194,plain,
    ! [SV270: $i,SV351: $i,SV373: $i] :
      ( ( ( ~ ! [SY2592: $i] :
                ( ~ ( in @ SY2592 @ SV373 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                          | ~ ( in @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
                    | ( SY2592
                     != ( ordered_pair @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) ) ) ) ) )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2123]) ).

thf(2195,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                  | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) )
              | ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
                  | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2124]) ).

thf(2196,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
          | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 )
          | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2125]) ).

thf(2197,plain,
    ! [SV353: $i,SV271: $i,SV375: $i] :
      ( ( ( ~ ! [SY2593: $i] :
                ( ~ ( in @ SY2593 @ SV375 )
                | ( in @ SY2593 @ SV271 )
                | ( in @ SY2593 @ SV353 ) ) )
        = $false )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2126]) ).

thf(2198,plain,
    ! [SV353: $i,SV375: $i,SV271: $i] :
      ( ( ( ~ ~ ( ~ ! [SY2594: $i] :
                      ( ~ ( in @ SY2594 @ SV271 )
                      | ( in @ SY2594 @ SV375 ) )
                | ~ ! [SY2595: $i] :
                      ( ~ ( in @ SY2595 @ SV353 )
                      | ( in @ SY2595 @ SV375 ) ) ) )
        = $false )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2126]) ).

thf(2199,plain,
    ! [SV272: $i,SV406: $i] :
      ( ( ( in @ SV406 @ ( sK39_B @ SV272 ) )
        = $false )
      | ( ( in @ ( powerset @ SV406 ) @ ( sK39_B @ SV272 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2127]) ).

thf(2200,plain,
    ! [SV272: $i] :
      ( ( ! [SY2459: $i,SY2460: $i] :
            ( ~ ( in @ SY2459 @ ( sK39_B @ SV272 ) )
            | ~ ( subset @ SY2460 @ SY2459 )
            | ( in @ SY2460 @ ( sK39_B @ SV272 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2128]) ).

thf(2201,plain,
    ! [SV272: $i] :
      ( ( in @ SV272 @ ( sK39_B @ SV272 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[2129]) ).

thf(2202,plain,
    ! [SV396: $i,SV273: $i] :
      ( ( ( ~ ( subset @ SV273 @ SV396 ) )
        = $true )
      | ( ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SV396 ) )
        = $true )
      | ( ( relation @ SV396 )
        = $false )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2130]) ).

thf(2203,plain,
    ! [SV397: $i,SV273: $i] :
      ( ( ( ~ ( subset @ SV273 @ SV397 ) )
        = $true )
      | ( ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SV397 ) )
        = $true )
      | ( ( relation @ SV397 )
        = $false )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2131]) ).

thf(2204,plain,
    ! [SV398: $i,SV299: $i,SV376: $i,SV274: $i] :
      ( ( ( in @ SV274 @ SV376 )
        = $false )
      | ( ( ~ ( in @ SV299 @ SV398 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV376 @ SV398 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2132]) ).

thf(2205,plain,
    ! [SV417: $i,SV299: $i,SV274: $i] :
      ( ( ( ! [SY2632: $i] :
              ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV417 @ SY2632 ) ) )
        = $true )
      | ( ( in @ SV274 @ SV417 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2133]) ).

thf(2206,plain,
    ! [SV425: $i,SV418: $i,SV299: $i,SV274: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV418 @ SV425 ) )
        | ( in @ SV299 @ SV425 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2134]) ).

thf(2207,plain,
    ! [SV324: $i,SV357: $i] :
      ( ( ( in @ ( sK20_C @ SV357 @ SV324 ) @ SV357 )
        = $false )
      | ( ( subset @ SV324 @ SV357 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2137]) ).

thf(2208,plain,
    ! [SV358: $i,SV325: $i,SV407: $i] :
      ( ( ( in @ SV407 @ SV325 )
        = $false )
      | ( ( in @ SV407 @ SV358 )
        = $true )
      | ( ( subset @ SV325 @ SV358 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2138]) ).

thf(2209,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
          | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
          | ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2139]) ).

thf(2210,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
                  | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
              | ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
                  | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) ) ) )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2140]) ).

thf(2211,plain,
    ! [SV378: $i,SV360: $i,SV275: $i] :
      ( ( ( ~ ! [SY2597: $i] :
                ( ~ ( in @ SY2597 @ SV275 )
                | ( in @ SY2597 @ SV360 )
                | ( in @ SY2597 @ SV378 ) ) )
        = $false )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2141]) ).

thf(2212,plain,
    ! [SV360: $i,SV275: $i,SV378: $i] :
      ( ( ( ~ ~ ( ~ ! [SY2598: $i] :
                      ( ~ ( in @ SY2598 @ SV378 )
                      | ( in @ SY2598 @ SV275 ) )
                | ~ ! [SY2599: $i] :
                      ( ~ ( in @ SY2599 @ SV378 )
                      | ~ ( in @ SY2599 @ SV360 ) ) ) )
        = $false )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2141]) ).

thf(2213,plain,
    ! [SV380: $i,SV408: $i] :
      ( ( ( element @ SV408 @ SV380 )
        = $false )
      | ( ( in @ SV408 @ SV380 )
        = $true )
      | ( ( empty @ SV380 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2142]) ).

thf(2214,plain,
    ! [SV381: $i,SV409: $i] :
      ( ( ( in @ SV409 @ SV381 )
        = $false )
      | ( ( element @ SV409 @ SV381 )
        = $true )
      | ( ( empty @ SV381 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2143]) ).

thf(2215,plain,
    ! [SV382: $i,SV419: $i] :
      ( ( ( ~ ( element @ SV419 @ SV382 ) )
        = $true )
      | ( ( empty @ SV419 )
        = $true )
      | ( ( empty @ SV382 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2144]) ).

thf(2216,plain,
    ! [SV383: $i,SV420: $i] :
      ( ( ( ~ ( empty @ SV420 ) )
        = $true )
      | ( ( element @ SV420 @ SV383 )
        = $true )
      | ( ( empty @ SV383 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2145]) ).

thf(2217,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( ( sK30_C @ SV328 @ SV306 )
          = SV306 )
        = $false )
      | ( ( ~ ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 ) )
        = $true )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2146]) ).

thf(2218,plain,
    ! [SV329: $i,SV307: $i,SV426: $i] :
      ( ( ( ( SV426 != SV307 )
          | ( in @ SV426 @ SV329 ) )
        = $true )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2148]) ).

thf(2219,plain,
    ! [SV307: $i,SV329: $i,SV427: $i] :
      ( ( ( ~ ( in @ SV427 @ SV329 )
          | ( SV427 = SV307 ) )
        = $true )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2149]) ).

thf(2220,plain,
    ! [SV384: $i,SV331: $i,SV309: $i] :
      ( ( ( disjoint @ SV309 @ SV331 )
        = $false )
      | ( ( in @ SV384 @ SV309 )
        = $false )
      | ( ( in @ SV384 @ SV331 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2150]) ).

thf(2221,plain,
    ! [SV428: $i,SV310: $i,SV332: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV428 )
          | ~ ( in @ SV428 @ SV310 ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2151]) ).

thf(2222,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ ( sK15_SY2048 @ SV332 @ SV310 ) )
          | ~ ( in @ ( sK15_SY2048 @ SV332 @ SV310 ) @ SV310 ) )
        = $false )
      | ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2152]) ).

thf(2223,plain,
    ! [SV333: $i,SV311: $i,SV429: $i] :
      ( ( ( ! [SY2634: $i] :
              ( ~ ( in @ SV429 @ SY2634 )
              | ~ ( in @ SY2634 @ SV311 ) )
          | ( in @ SV429 @ SV333 ) )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2153]) ).

thf(2224,plain,
    ! [SV311: $i,SV333: $i,SV430: $i] :
      ( ( ( ~ ( in @ SV430 @ SV333 )
          | ~ ( ~ ( in @ SV430 @ ( sK13_D @ SV430 @ SV333 @ SV311 ) )
              | ~ ( in @ ( sK13_D @ SV430 @ SV333 @ SV311 ) @ SV311 ) ) )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2154]) ).

thf(2225,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ( ~ ( element @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
              | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                        | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
                    | ~ ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                        | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) ) ) )
        = $true )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2155]) ).

thf(2226,plain,
    ! [SV294: $i,SV258: $i,SV401: $i] :
      ( ( ( ( SV401
           != ( complements_of_subsets @ SV258 @ SV294 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY2620: $i] :
                    ( ~ ( element @ SY2620 @ ( powerset @ SV258 ) )
                    | ~ ( in @ SY2620 @ SV401 )
                    | ( in @ ( subset_complement @ SV258 @ SY2620 ) @ SV294 ) )
              | ~ ! [SY2621: $i] :
                    ( ~ ( element @ SY2621 @ ( powerset @ SV258 ) )
                    | ~ ( in @ ( subset_complement @ SV258 @ SY2621 ) @ SV294 )
                    | ( in @ SY2621 @ SV401 ) ) ) )
        = $true )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2156]) ).

thf(2227,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
          | ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2157]) ).

thf(2228,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
              | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
          | ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
              | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) ) )
        = $false )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2158]) ).

thf(2229,plain,
    ! [SV363: $i,SV335: $i,SV260: $i] :
      ( ( ( ! [SY2578: $i] :
              ( ~ ( in @ SY2578 @ SV260 )
              | ~ ( in @ SY2578 @ SV335 )
              | ( in @ SY2578 @ SV363 ) ) )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2159]) ).

thf(2230,plain,
    ! [SV335: $i,SV260: $i,SV363: $i] :
      ( ( ( ~ ( ~ ! [SY2579: $i] :
                    ( ~ ( in @ SY2579 @ SV363 )
                    | ( in @ SY2579 @ SV260 ) )
              | ~ ! [SY2580: $i] :
                    ( ~ ( in @ SY2580 @ SV363 )
                    | ( in @ SY2580 @ SV335 ) ) ) )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2160]) ).

thf(2231,plain,
    ! [SV261: $i,SV385: $i] :
      ( ( ( ! [SY2604: $i] :
              ~ ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ SY2604 ) @ SV261 )
          | ~ ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) )
        = $true )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2161]) ).

thf(2232,plain,
    ! [SV261: $i,SV385: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ ( sK18_SY2050 @ SV385 @ SV261 ) ) @ SV261 )
          | ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) )
        = $true )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2162]) ).

thf(2233,plain,
    ! [SV386: $i,SV261: $i] :
      ( ( ( ~ ! [SY2605: $i] :
                ( ! [SY2397: $i] :
                    ~ ( in @ ( ordered_pair @ SY2605 @ SY2397 ) @ SV261 )
                | ( in @ SY2605 @ SV386 ) ) )
        = $false )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2163]) ).

thf(2234,plain,
    ! [SV261: $i,SV386: $i] :
      ( ( ( ~ ! [SY2607: $i] :
                ( ~ ( in @ SY2607 @ SV386 )
                | ( in @ ( ordered_pair @ SY2607 @ ( sK16_D @ SY2607 @ SV386 @ SV261 ) ) @ SV261 ) ) )
        = $false )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2163]) ).

thf(2235,plain,
    ! [SV410: $i,SV402: $i,SV262: $i] :
      ( ( ( subset @ ( unordered_pair @ SV262 @ SV402 ) @ SV410 )
        = $false )
      | ( ( in @ SV262 @ SV410 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2165]) ).

thf(2236,plain,
    ! [SV411: $i,SV403: $i,SV262: $i] :
      ( ( ( subset @ ( unordered_pair @ SV262 @ SV403 ) @ SV411 )
        = $false )
      | ( ( in @ SV403 @ SV411 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2166]) ).

thf(2237,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
        = $false )
      | ( ( ~ ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 ) )
        = $true )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2167]) ).

thf(2238,plain,
    ! [SV313: $i,SV338: $i,SV431: $i] :
      ( ( ( ~ ( in @ SV431 @ SV338 )
          | ( subset @ SV431 @ SV313 ) )
        = $true )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2169]) ).

thf(2239,plain,
    ! [SV338: $i,SV313: $i,SV432: $i] :
      ( ( ( ~ ( subset @ SV432 @ SV313 )
          | ( in @ SV432 @ SV338 ) )
        = $true )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2170]) ).

thf(2240,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 )
                  | ~ ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) ) )
              | ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
          | ~ ( ! [SY2625: $i] :
                  ( ~ ( in @ SY2625 @ SV387 )
                  | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SY2625 ) )
              | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) ) )
        = $false )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2171]) ).

thf(2241,plain,
    ! [SV388: $i,SV413: $i] :
      ( ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2626: $i] :
                    ( ~ ( ~ ( in @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) @ SV388 )
                        | ~ ~ ( in @ SY2626 @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) ) )
                    | ( in @ SY2626 @ SV413 ) )
              | ~ ! [SY2627: $i] :
                    ( ~ ( in @ SY2627 @ SV413 )
                    | ! [SY2613: $i] :
                        ( ~ ( in @ SY2613 @ SV388 )
                        | ( in @ SY2627 @ SY2613 ) ) ) ) )
        = $true )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2172]) ).

thf(2242,plain,
    ! [SV389: $i,SV421: $i] :
      ( ( ( ( SV421
           != ( set_meet @ SV389 ) ) )
        = $true )
      | ( ( SV421 = empty_set )
        = $true )
      | ( ( SV389 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2173]) ).

thf(2243,plain,
    ! [SV390: $i,SV422: $i] :
      ( ( ( ( SV422 != empty_set ) )
        = $true )
      | ( ( SV422
          = ( set_meet @ SV390 ) )
        = $true )
      | ( ( SV390 = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2174]) ).

thf(2244,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
              | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
               != SV263 ) )
          | ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
              | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
               != SV339 ) ) )
        = $false )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2175]) ).

thf(2245,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
        = $true )
      | ( ( ( ( sK27_D @ SV365 @ SV339 @ SV263 )
            = SV263 )
          | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
            = SV339 ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2176]) ).

thf(2246,plain,
    ! [SV340: $i,SV263: $i,SV366: $i] :
      ( ( ( ! [SY2581: $i] :
              ( ~ ( in @ SY2581 @ SV366 )
              | ( SY2581 = SV263 )
              | ( SY2581 = SV340 ) ) )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2177]) ).

thf(2247,plain,
    ! [SV340: $i,SV366: $i,SV263: $i] :
      ( ( ( ~ ( ~ ! [SY2582: $i] :
                    ( ( SY2582 != SV263 )
                    | ( in @ SY2582 @ SV366 ) )
              | ~ ! [SY2583: $i] :
                    ( ( SY2583 != SV340 )
                    | ( in @ SY2583 @ SV366 ) ) ) )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2178]) ).

thf(2248,plain,
    ! [SV265: $i,SV391: $i] :
      ( ( ( ! [SY2616: $i] :
              ~ ( in @ ( ordered_pair @ SY2616 @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
          | ~ ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) )
        = $true )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2181]) ).

thf(2249,plain,
    ! [SV265: $i,SV391: $i] :
      ( ( ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV391 @ SV265 ) @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
          | ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) )
        = $true )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2182]) ).

thf(2250,plain,
    ! [SV392: $i,SV265: $i] :
      ( ( ( ~ ! [SY2617: $i] :
                ( ! [SY2420: $i] :
                    ~ ( in @ ( ordered_pair @ SY2420 @ SY2617 ) @ SV265 )
                | ( in @ SY2617 @ SV392 ) ) )
        = $false )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2183]) ).

thf(2251,plain,
    ! [SV265: $i,SV392: $i] :
      ( ( ( ~ ! [SY2619: $i] :
                ( ~ ( in @ SY2619 @ SV392 )
                | ( in @ ( ordered_pair @ ( sK9_D @ SY2619 @ SV392 @ SV265 ) @ SY2619 ) @ SV265 ) ) )
        = $false )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2183]) ).

thf(2252,plain,
    ! [SV267: $i,SV404: $i] :
      ( ( ( ~ ! [SY2624: $i] :
                ( ~ ( subset @ SY2624 @ SV404 )
                | ( in @ SY2624 @ ( sK5_SY2040 @ SV404 @ SV267 ) ) ) )
        = $false )
      | ( ( ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2184]) ).

thf(2253,plain,
    ! [SV267: $i,SV404: $i] :
      ( ( ( ~ ( in @ ( sK5_SY2040 @ SV404 @ SV267 ) @ ( sK4_B @ SV267 ) ) )
        = $false )
      | ( ( ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2184]) ).

thf(2254,plain,
    ! [SV267: $i,SV433: $i] :
      ( ( ! [SY2635: $i] :
            ( ~ ( in @ SV433 @ ( sK4_B @ SV267 ) )
            | ~ ( subset @ SY2635 @ SV433 )
            | ( in @ SY2635 @ ( sK4_B @ SV267 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2185]) ).

thf(2255,plain,
    ! [SV369: $i,SV268: $i,SV393: $i,SV297: $i] :
      ( ( ( in @ SV297 @ SV393 )
        = $false )
      | ( ( in @ SV268 @ SV369 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV369 @ SV393 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2187]) ).

thf(2256,plain,
    ! [SV434: $i,SV414: $i,SV297: $i,SV268: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV414 @ SV434 ) ) )
        = $true )
      | ( ( in @ SV268 @ SV414 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2188]) ).

thf(2257,plain,
    ! [SV423: $i,SV415: $i,SV297: $i,SV268: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV415 @ SV423 ) ) )
        = $true )
      | ( ( in @ SV297 @ SV423 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2189]) ).

thf(2258,plain,
    ! [SV424: $i,SV416: $i,SV318: $i] :
      ( ( ( ( sK36_B @ SV318 )
          = ( ordered_pair @ SV416 @ SV424 ) )
        = $false )
      | ( ( relation @ SV318 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2190]) ).

thf(2259,plain,
    ! [SV372: $i,SV350: $i,SV270: $i] :
      ( ( ( ! [SY2587: $i,SY2588: $i] :
              ( ~ ( in @ SY2587 @ SV270 )
              | ~ ( in @ SY2588 @ SV350 )
              | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
               != ( ordered_pair @ SY2587 @ SY2588 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2191]) ).

thf(2260,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
                    | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) )
              | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
               != ( ordered_pair @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2192]) ).

thf(2261,plain,
    ! [SV373: $i,SV351: $i,SV270: $i] :
      ( ( ( ! [SY2589: $i] :
              ( ! [SY2563: $i,SY2564: $i] :
                  ( ~ ( in @ SY2563 @ SV270 )
                  | ~ ( in @ SY2564 @ SV351 )
                  | ( SY2589
                   != ( ordered_pair @ SY2563 @ SY2564 ) ) )
              | ( in @ SY2589 @ SV373 ) ) )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2193]) ).

thf(2262,plain,
    ! [SV270: $i,SV351: $i,SV373: $i] :
      ( ( ( ! [SY2592: $i] :
              ( ~ ( in @ SY2592 @ SV373 )
              | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                        | ~ ( in @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
                  | ( SY2592
                   != ( ordered_pair @ ( sK21_E @ SY2592 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SY2592 @ SV373 @ SV351 @ SV270 ) ) ) ) ) )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2194]) ).

thf(2263,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
              | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) )
          | ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
              | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) )
        = $false )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2195]) ).

thf(2264,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
        = $true )
      | ( ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 )
          | ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2196]) ).

thf(2265,plain,
    ! [SV353: $i,SV271: $i,SV375: $i] :
      ( ( ( ! [SY2593: $i] :
              ( ~ ( in @ SY2593 @ SV375 )
              | ( in @ SY2593 @ SV271 )
              | ( in @ SY2593 @ SV353 ) ) )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2197]) ).

thf(2266,plain,
    ! [SV353: $i,SV375: $i,SV271: $i] :
      ( ( ( ~ ( ~ ! [SY2594: $i] :
                    ( ~ ( in @ SY2594 @ SV271 )
                    | ( in @ SY2594 @ SV375 ) )
              | ~ ! [SY2595: $i] :
                    ( ~ ( in @ SY2595 @ SV353 )
                    | ( in @ SY2595 @ SV375 ) ) ) )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2198]) ).

thf(2267,plain,
    ! [SV272: $i,SV435: $i] :
      ( ( ! [SY2636: $i] :
            ( ~ ( in @ SV435 @ ( sK39_B @ SV272 ) )
            | ~ ( subset @ SY2636 @ SV435 )
            | ( in @ SY2636 @ ( sK39_B @ SV272 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2200]) ).

thf(2268,plain,
    ! [SV396: $i,SV273: $i] :
      ( ( ( subset @ SV273 @ SV396 )
        = $false )
      | ( ( subset @ ( relation_dom @ SV273 ) @ ( relation_dom @ SV396 ) )
        = $true )
      | ( ( relation @ SV396 )
        = $false )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2202]) ).

thf(2269,plain,
    ! [SV397: $i,SV273: $i] :
      ( ( ( subset @ SV273 @ SV397 )
        = $false )
      | ( ( subset @ ( relation_rng @ SV273 ) @ ( relation_rng @ SV397 ) )
        = $true )
      | ( ( relation @ SV397 )
        = $false )
      | ( ( relation @ SV273 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2203]) ).

thf(2270,plain,
    ! [SV376: $i,SV274: $i,SV398: $i,SV299: $i] :
      ( ( ( in @ SV299 @ SV398 )
        = $false )
      | ( ( in @ SV274 @ SV376 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV376 @ SV398 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2204]) ).

thf(2271,plain,
    ! [SV436: $i,SV417: $i,SV299: $i,SV274: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV417 @ SV436 ) ) )
        = $true )
      | ( ( in @ SV274 @ SV417 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2205]) ).

thf(2272,plain,
    ! [SV425: $i,SV418: $i,SV299: $i,SV274: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV418 @ SV425 ) ) )
        = $true )
      | ( ( in @ SV299 @ SV425 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2206]) ).

thf(2273,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
          | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2209]) ).

thf(2274,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
              | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
          | ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
              | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) ) )
        = $false )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2210]) ).

thf(2275,plain,
    ! [SV378: $i,SV360: $i,SV275: $i] :
      ( ( ( ! [SY2597: $i] :
              ( ~ ( in @ SY2597 @ SV275 )
              | ( in @ SY2597 @ SV360 )
              | ( in @ SY2597 @ SV378 ) ) )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2211]) ).

thf(2276,plain,
    ! [SV360: $i,SV275: $i,SV378: $i] :
      ( ( ( ~ ( ~ ! [SY2598: $i] :
                    ( ~ ( in @ SY2598 @ SV378 )
                    | ( in @ SY2598 @ SV275 ) )
              | ~ ! [SY2599: $i] :
                    ( ~ ( in @ SY2599 @ SV378 )
                    | ~ ( in @ SY2599 @ SV360 ) ) ) )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2212]) ).

thf(2277,plain,
    ! [SV382: $i,SV419: $i] :
      ( ( ( element @ SV419 @ SV382 )
        = $false )
      | ( ( empty @ SV419 )
        = $true )
      | ( ( empty @ SV382 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2215]) ).

thf(2278,plain,
    ! [SV383: $i,SV420: $i] :
      ( ( ( empty @ SV420 )
        = $false )
      | ( ( element @ SV420 @ SV383 )
        = $true )
      | ( ( empty @ SV383 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2216]) ).

thf(2279,plain,
    ! [SV306: $i,SV328: $i] :
      ( ( ( in @ ( sK30_C @ SV328 @ SV306 ) @ SV328 )
        = $false )
      | ( ( ( sK30_C @ SV328 @ SV306 )
          = SV306 )
        = $false )
      | ( ( SV328
          = ( singleton @ SV306 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2217]) ).

thf(2280,plain,
    ! [SV329: $i,SV307: $i,SV426: $i] :
      ( ( ( ( SV426 != SV307 ) )
        = $true )
      | ( ( in @ SV426 @ SV329 )
        = $true )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2218]) ).

thf(2281,plain,
    ! [SV307: $i,SV329: $i,SV427: $i] :
      ( ( ( ~ ( in @ SV427 @ SV329 ) )
        = $true )
      | ( ( SV427 = SV307 )
        = $true )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2219]) ).

thf(2282,plain,
    ! [SV428: $i,SV310: $i,SV332: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV428 ) )
        = $true )
      | ( ( ~ ( in @ SV428 @ SV310 ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2221]) ).

thf(2283,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ ( sK15_SY2048 @ SV332 @ SV310 ) ) )
        = $false )
      | ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2222]) ).

thf(2284,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( ~ ( in @ ( sK15_SY2048 @ SV332 @ SV310 ) @ SV310 ) )
        = $false )
      | ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2222]) ).

thf(2285,plain,
    ! [SV333: $i,SV311: $i,SV429: $i] :
      ( ( ( ! [SY2634: $i] :
              ( ~ ( in @ SV429 @ SY2634 )
              | ~ ( in @ SY2634 @ SV311 ) ) )
        = $true )
      | ( ( in @ SV429 @ SV333 )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2223]) ).

thf(2286,plain,
    ! [SV311: $i,SV333: $i,SV430: $i] :
      ( ( ( ~ ( in @ SV430 @ SV333 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV430 @ ( sK13_D @ SV430 @ SV333 @ SV311 ) )
              | ~ ( in @ ( sK13_D @ SV430 @ SV333 @ SV311 ) @ SV311 ) ) )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2224]) ).

thf(2287,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ( element @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
          | ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                    | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
                | ~ ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                    | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
        = $false )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2225]) ).

thf(2288,plain,
    ! [SV294: $i,SV258: $i,SV401: $i] :
      ( ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY2620: $i] :
                    ( ~ ( element @ SY2620 @ ( powerset @ SV258 ) )
                    | ~ ( in @ SY2620 @ SV401 )
                    | ( in @ ( subset_complement @ SV258 @ SY2620 ) @ SV294 ) )
              | ~ ! [SY2621: $i] :
                    ( ~ ( element @ SY2621 @ ( powerset @ SV258 ) )
                    | ~ ( in @ ( subset_complement @ SV258 @ SY2621 ) @ SV294 )
                    | ( in @ SY2621 @ SV401 ) ) ) )
        = $true )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2226]) ).

thf(2289,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2227]) ).

thf(2290,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
              | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) ) )
        = $false )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2228]) ).

thf(2291,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
              | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) ) )
        = $false )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2228]) ).

thf(2292,plain,
    ! [SV363: $i,SV335: $i,SV260: $i,SV437: $i] :
      ( ( ( ~ ( in @ SV437 @ SV260 )
          | ~ ( in @ SV437 @ SV335 )
          | ( in @ SV437 @ SV363 ) )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2229]) ).

thf(2293,plain,
    ! [SV335: $i,SV260: $i,SV363: $i] :
      ( ( ( ~ ! [SY2579: $i] :
                ( ~ ( in @ SY2579 @ SV363 )
                | ( in @ SY2579 @ SV260 ) )
          | ~ ! [SY2580: $i] :
                ( ~ ( in @ SY2580 @ SV363 )
                | ( in @ SY2580 @ SV335 ) ) )
        = $false )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2230]) ).

thf(2294,plain,
    ! [SV261: $i,SV385: $i] :
      ( ( ( ! [SY2604: $i] :
              ~ ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ SY2604 ) @ SV261 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) )
        = $true )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2231]) ).

thf(2295,plain,
    ! [SV261: $i,SV385: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ ( sK18_SY2050 @ SV385 @ SV261 ) ) @ SV261 )
        = $true )
      | ( ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 )
        = $true )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2232]) ).

thf(2296,plain,
    ! [SV386: $i,SV261: $i] :
      ( ( ( ! [SY2605: $i] :
              ( ! [SY2397: $i] :
                  ~ ( in @ ( ordered_pair @ SY2605 @ SY2397 ) @ SV261 )
              | ( in @ SY2605 @ SV386 ) ) )
        = $true )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2233]) ).

thf(2297,plain,
    ! [SV261: $i,SV386: $i] :
      ( ( ( ! [SY2607: $i] :
              ( ~ ( in @ SY2607 @ SV386 )
              | ( in @ ( ordered_pair @ SY2607 @ ( sK16_D @ SY2607 @ SV386 @ SV261 ) ) @ SV261 ) ) )
        = $true )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2234]) ).

thf(2298,plain,
    ! [SV312: $i,SV337: $i] :
      ( ( ( subset @ ( sK28_C @ SV337 @ SV312 ) @ SV312 )
        = $false )
      | ( ( in @ ( sK28_C @ SV337 @ SV312 ) @ SV337 )
        = $false )
      | ( ( SV337
          = ( powerset @ SV312 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2237]) ).

thf(2299,plain,
    ! [SV313: $i,SV338: $i,SV431: $i] :
      ( ( ( ~ ( in @ SV431 @ SV338 ) )
        = $true )
      | ( ( subset @ SV431 @ SV313 )
        = $true )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2238]) ).

thf(2300,plain,
    ! [SV338: $i,SV313: $i,SV432: $i] :
      ( ( ( ~ ( subset @ SV432 @ SV313 ) )
        = $true )
      | ( ( in @ SV432 @ SV338 )
        = $true )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2239]) ).

thf(2301,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 )
                  | ~ ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) ) )
              | ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) ) )
        = $false )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2240]) ).

thf(2302,plain,
    ! [SV412: $i,SV387: $i] :
      ( ( ( ~ ( ! [SY2625: $i] :
                  ( ~ ( in @ SY2625 @ SV387 )
                  | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SY2625 ) )
              | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) ) )
        = $false )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2240]) ).

thf(2303,plain,
    ! [SV388: $i,SV413: $i] :
      ( ( ( ~ ! [SY2626: $i] :
                ( ~ ( ~ ( in @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) @ SV388 )
                    | ~ ~ ( in @ SY2626 @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) ) )
                | ( in @ SY2626 @ SV413 ) )
          | ~ ! [SY2627: $i] :
                ( ~ ( in @ SY2627 @ SV413 )
                | ! [SY2613: $i] :
                    ( ~ ( in @ SY2613 @ SV388 )
                    | ( in @ SY2627 @ SY2613 ) ) ) )
        = $false )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2241]) ).

thf(2304,plain,
    ! [SV389: $i,SV421: $i] :
      ( ( ( SV421
          = ( set_meet @ SV389 ) )
        = $false )
      | ( ( SV421 = empty_set )
        = $true )
      | ( ( SV389 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2242]) ).

thf(2305,plain,
    ! [SV390: $i,SV422: $i] :
      ( ( ( SV422 = empty_set )
        = $false )
      | ( ( SV422
          = ( set_meet @ SV390 ) )
        = $true )
      | ( ( SV390 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2243]) ).

thf(2306,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
              | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
               != SV263 ) ) )
        = $false )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2244]) ).

thf(2307,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
              | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
               != SV339 ) ) )
        = $false )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2244]) ).

thf(2308,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ( sK27_D @ SV365 @ SV339 @ SV263 )
          = SV263 )
        = $true )
      | ( ( ( sK27_D @ SV365 @ SV339 @ SV263 )
          = SV339 )
        = $true )
      | ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2245]) ).

thf(2309,plain,
    ! [SV340: $i,SV263: $i,SV366: $i,SV438: $i] :
      ( ( ( ~ ( in @ SV438 @ SV366 )
          | ( SV438 = SV263 )
          | ( SV438 = SV340 ) )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2246]) ).

thf(2310,plain,
    ! [SV340: $i,SV366: $i,SV263: $i] :
      ( ( ( ~ ! [SY2582: $i] :
                ( ( SY2582 != SV263 )
                | ( in @ SY2582 @ SV366 ) )
          | ~ ! [SY2583: $i] :
                ( ( SY2583 != SV340 )
                | ( in @ SY2583 @ SV366 ) ) )
        = $false )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2247]) ).

thf(2311,plain,
    ! [SV265: $i,SV391: $i] :
      ( ( ( ! [SY2616: $i] :
              ~ ( in @ ( ordered_pair @ SY2616 @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) )
        = $true )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2248]) ).

thf(2312,plain,
    ! [SV265: $i,SV391: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK11_SY2046 @ SV391 @ SV265 ) @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
        = $true )
      | ( ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 )
        = $true )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2249]) ).

thf(2313,plain,
    ! [SV392: $i,SV265: $i] :
      ( ( ( ! [SY2617: $i] :
              ( ! [SY2420: $i] :
                  ~ ( in @ ( ordered_pair @ SY2420 @ SY2617 ) @ SV265 )
              | ( in @ SY2617 @ SV392 ) ) )
        = $true )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2250]) ).

thf(2314,plain,
    ! [SV265: $i,SV392: $i] :
      ( ( ( ! [SY2619: $i] :
              ( ~ ( in @ SY2619 @ SV392 )
              | ( in @ ( ordered_pair @ ( sK9_D @ SY2619 @ SV392 @ SV265 ) @ SY2619 ) @ SV265 ) ) )
        = $true )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2251]) ).

thf(2315,plain,
    ! [SV267: $i,SV404: $i] :
      ( ( ( ! [SY2624: $i] :
              ( ~ ( subset @ SY2624 @ SV404 )
              | ( in @ SY2624 @ ( sK5_SY2040 @ SV404 @ SV267 ) ) ) )
        = $true )
      | ( ( ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2252]) ).

thf(2316,plain,
    ! [SV267: $i,SV404: $i] :
      ( ( ( in @ ( sK5_SY2040 @ SV404 @ SV267 ) @ ( sK4_B @ SV267 ) )
        = $true )
      | ( ( ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2253]) ).

thf(2317,plain,
    ! [SV439: $i,SV267: $i,SV433: $i] :
      ( ( ~ ( in @ SV433 @ ( sK4_B @ SV267 ) )
        | ~ ( subset @ SV439 @ SV433 )
        | ( in @ SV439 @ ( sK4_B @ SV267 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2254]) ).

thf(2318,plain,
    ! [SV434: $i,SV414: $i,SV297: $i,SV268: $i] :
      ( ( ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV414 @ SV434 ) )
        = $false )
      | ( ( in @ SV268 @ SV414 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2256]) ).

thf(2319,plain,
    ! [SV423: $i,SV415: $i,SV297: $i,SV268: $i] :
      ( ( ( in @ ( ordered_pair @ SV268 @ SV297 ) @ ( cartesian_product2 @ SV415 @ SV423 ) )
        = $false )
      | ( ( in @ SV297 @ SV423 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2257]) ).

thf(2320,plain,
    ! [SV372: $i,SV350: $i,SV270: $i,SV440: $i] :
      ( ( ( ! [SY2637: $i] :
              ( ~ ( in @ SV440 @ SV270 )
              | ~ ( in @ SY2637 @ SV350 )
              | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
               != ( ordered_pair @ SV440 @ SY2637 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2259]) ).

thf(2321,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
                | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) )
          | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
           != ( ordered_pair @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2260]) ).

thf(2322,plain,
    ! [SV373: $i,SV441: $i,SV351: $i,SV270: $i] :
      ( ( ( ! [SY2638: $i,SY2639: $i] :
              ( ~ ( in @ SY2638 @ SV270 )
              | ~ ( in @ SY2639 @ SV351 )
              | ( SV441
               != ( ordered_pair @ SY2638 @ SY2639 ) ) )
          | ( in @ SV441 @ SV373 ) )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2261]) ).

thf(2323,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( ~ ( in @ SV442 @ SV373 )
          | ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                    | ~ ( in @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
              | ( SV442
               != ( ordered_pair @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) ) ) ) )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2262]) ).

thf(2324,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
              | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) ) )
        = $false )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2263]) ).

thf(2325,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
              | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) ) )
        = $false )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2263]) ).

thf(2326,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 )
        = $true )
      | ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 )
        = $true )
      | ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2264]) ).

thf(2327,plain,
    ! [SV353: $i,SV271: $i,SV375: $i,SV443: $i] :
      ( ( ( ~ ( in @ SV443 @ SV375 )
          | ( in @ SV443 @ SV271 )
          | ( in @ SV443 @ SV353 ) )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2265]) ).

thf(2328,plain,
    ! [SV353: $i,SV375: $i,SV271: $i] :
      ( ( ( ~ ! [SY2594: $i] :
                ( ~ ( in @ SY2594 @ SV271 )
                | ( in @ SY2594 @ SV375 ) )
          | ~ ! [SY2595: $i] :
                ( ~ ( in @ SY2595 @ SV353 )
                | ( in @ SY2595 @ SV375 ) ) )
        = $false )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2266]) ).

thf(2329,plain,
    ! [SV444: $i,SV272: $i,SV435: $i] :
      ( ( ~ ( in @ SV435 @ ( sK39_B @ SV272 ) )
        | ~ ( subset @ SV444 @ SV435 )
        | ( in @ SV444 @ ( sK39_B @ SV272 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2267]) ).

thf(2330,plain,
    ! [SV436: $i,SV417: $i,SV299: $i,SV274: $i] :
      ( ( ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV417 @ SV436 ) )
        = $false )
      | ( ( in @ SV274 @ SV417 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2271]) ).

thf(2331,plain,
    ! [SV425: $i,SV418: $i,SV299: $i,SV274: $i] :
      ( ( ( in @ ( ordered_pair @ SV274 @ SV299 ) @ ( cartesian_product2 @ SV418 @ SV425 ) )
        = $false )
      | ( ( in @ SV299 @ SV425 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2272]) ).

thf(2332,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 ) )
        = $true )
      | ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2273]) ).

thf(2333,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
              | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) ) )
        = $false )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2274]) ).

thf(2334,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
              | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) ) )
        = $false )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2274]) ).

thf(2335,plain,
    ! [SV378: $i,SV360: $i,SV275: $i,SV445: $i] :
      ( ( ( ~ ( in @ SV445 @ SV275 )
          | ( in @ SV445 @ SV360 )
          | ( in @ SV445 @ SV378 ) )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2275]) ).

thf(2336,plain,
    ! [SV360: $i,SV275: $i,SV378: $i] :
      ( ( ( ~ ! [SY2598: $i] :
                ( ~ ( in @ SY2598 @ SV378 )
                | ( in @ SY2598 @ SV275 ) )
          | ~ ! [SY2599: $i] :
                ( ~ ( in @ SY2599 @ SV378 )
                | ~ ( in @ SY2599 @ SV360 ) ) )
        = $false )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2276]) ).

thf(2337,plain,
    ! [SV329: $i,SV307: $i,SV426: $i] :
      ( ( ( SV426 = SV307 )
        = $false )
      | ( ( in @ SV426 @ SV329 )
        = $true )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2280]) ).

thf(2338,plain,
    ! [SV307: $i,SV329: $i,SV427: $i] :
      ( ( ( in @ SV427 @ SV329 )
        = $false )
      | ( ( SV427 = SV307 )
        = $true )
      | ( ( SV329
          = ( singleton @ SV307 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2281]) ).

thf(2339,plain,
    ! [SV428: $i,SV310: $i,SV332: $i] :
      ( ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV428 )
        = $false )
      | ( ( ~ ( in @ SV428 @ SV310 ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2282]) ).

thf(2340,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ ( sK15_SY2048 @ SV332 @ SV310 ) )
        = $true )
      | ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2283]) ).

thf(2341,plain,
    ! [SV310: $i,SV332: $i] :
      ( ( ( in @ ( sK15_SY2048 @ SV332 @ SV310 ) @ SV310 )
        = $true )
      | ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2284]) ).

thf(2342,plain,
    ! [SV333: $i,SV311: $i,SV446: $i,SV429: $i] :
      ( ( ( ~ ( in @ SV429 @ SV446 )
          | ~ ( in @ SV446 @ SV311 ) )
        = $true )
      | ( ( in @ SV429 @ SV333 )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2285]) ).

thf(2343,plain,
    ! [SV311: $i,SV333: $i,SV430: $i] :
      ( ( ( in @ SV430 @ SV333 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV430 @ ( sK13_D @ SV430 @ SV333 @ SV311 ) )
              | ~ ( in @ ( sK13_D @ SV430 @ SV333 @ SV311 ) @ SV311 ) ) )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2286]) ).

thf(2344,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ( element @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2287]) ).

thf(2345,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                    | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
                | ~ ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                    | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
        = $false )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2287]) ).

thf(2346,plain,
    ! [SV294: $i,SV401: $i,SV258: $i] :
      ( ( ( ~ ! [SY2620: $i] :
                ( ~ ( element @ SY2620 @ ( powerset @ SV258 ) )
                | ~ ( in @ SY2620 @ SV401 )
                | ( in @ ( subset_complement @ SV258 @ SY2620 ) @ SV294 ) )
          | ~ ! [SY2621: $i] :
                ( ~ ( element @ SY2621 @ ( powerset @ SV258 ) )
                | ~ ( in @ ( subset_complement @ SV258 @ SY2621 ) @ SV294 )
                | ( in @ SY2621 @ SV401 ) ) )
        = $false )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2288]) ).

thf(2347,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2289]) ).

thf(2348,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
          | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2290]) ).

thf(2349,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
          | ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2291]) ).

thf(2350,plain,
    ! [SV363: $i,SV335: $i,SV260: $i,SV437: $i] :
      ( ( ( ~ ( in @ SV437 @ SV260 )
          | ~ ( in @ SV437 @ SV335 ) )
        = $true )
      | ( ( in @ SV437 @ SV363 )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2292]) ).

thf(2351,plain,
    ! [SV335: $i,SV260: $i,SV363: $i] :
      ( ( ( ~ ! [SY2579: $i] :
                ( ~ ( in @ SY2579 @ SV363 )
                | ( in @ SY2579 @ SV260 ) ) )
        = $false )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2293]) ).

thf(2352,plain,
    ! [SV260: $i,SV335: $i,SV363: $i] :
      ( ( ( ~ ! [SY2580: $i] :
                ( ~ ( in @ SY2580 @ SV363 )
                | ( in @ SY2580 @ SV335 ) ) )
        = $false )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2293]) ).

thf(2353,plain,
    ! [SV447: $i,SV261: $i,SV385: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ SV447 ) @ SV261 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) )
        = $true )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2294]) ).

thf(2354,plain,
    ! [SV386: $i,SV261: $i,SV448: $i] :
      ( ( ( ! [SY2640: $i] :
              ~ ( in @ ( ordered_pair @ SV448 @ SY2640 ) @ SV261 )
          | ( in @ SV448 @ SV386 ) )
        = $true )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2296]) ).

thf(2355,plain,
    ! [SV261: $i,SV386: $i,SV449: $i] :
      ( ( ( ~ ( in @ SV449 @ SV386 )
          | ( in @ ( ordered_pair @ SV449 @ ( sK16_D @ SV449 @ SV386 @ SV261 ) ) @ SV261 ) )
        = $true )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2297]) ).

thf(2356,plain,
    ! [SV313: $i,SV338: $i,SV431: $i] :
      ( ( ( in @ SV431 @ SV338 )
        = $false )
      | ( ( subset @ SV431 @ SV313 )
        = $true )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2299]) ).

thf(2357,plain,
    ! [SV338: $i,SV313: $i,SV432: $i] :
      ( ( ( subset @ SV432 @ SV313 )
        = $false )
      | ( ( in @ SV432 @ SV338 )
        = $true )
      | ( ( SV338
          = ( powerset @ SV313 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2300]) ).

thf(2358,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 )
              | ~ ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) ) )
          | ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2301]) ).

thf(2359,plain,
    ! [SV412: $i,SV387: $i] :
      ( ( ( ! [SY2625: $i] :
              ( ~ ( in @ SY2625 @ SV387 )
              | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SY2625 ) )
          | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2302]) ).

thf(2360,plain,
    ! [SV388: $i,SV413: $i] :
      ( ( ( ~ ! [SY2626: $i] :
                ( ~ ( ~ ( in @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) @ SV388 )
                    | ~ ~ ( in @ SY2626 @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) ) )
                | ( in @ SY2626 @ SV413 ) ) )
        = $false )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2303]) ).

thf(2361,plain,
    ! [SV388: $i,SV413: $i] :
      ( ( ( ~ ! [SY2627: $i] :
                ( ~ ( in @ SY2627 @ SV413 )
                | ! [SY2613: $i] :
                    ( ~ ( in @ SY2613 @ SV388 )
                    | ( in @ SY2627 @ SY2613 ) ) ) )
        = $false )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2303]) ).

thf(2362,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
          | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
           != SV263 ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2306]) ).

thf(2363,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
          | ( ( sK27_D @ SV365 @ SV339 @ SV263 )
           != SV339 ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2307]) ).

thf(2364,plain,
    ! [SV340: $i,SV263: $i,SV366: $i,SV438: $i] :
      ( ( ( ~ ( in @ SV438 @ SV366 ) )
        = $true )
      | ( ( ( SV438 = SV263 )
          | ( SV438 = SV340 ) )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2309]) ).

thf(2365,plain,
    ! [SV340: $i,SV366: $i,SV263: $i] :
      ( ( ( ~ ! [SY2582: $i] :
                ( ( SY2582 != SV263 )
                | ( in @ SY2582 @ SV366 ) ) )
        = $false )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2310]) ).

thf(2366,plain,
    ! [SV263: $i,SV366: $i,SV340: $i] :
      ( ( ( ~ ! [SY2583: $i] :
                ( ( SY2583 != SV340 )
                | ( in @ SY2583 @ SV366 ) ) )
        = $false )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2310]) ).

thf(2367,plain,
    ! [SV265: $i,SV391: $i,SV450: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV450 @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) )
        = $true )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2311]) ).

thf(2368,plain,
    ! [SV392: $i,SV265: $i,SV451: $i] :
      ( ( ( ! [SY2641: $i] :
              ~ ( in @ ( ordered_pair @ SY2641 @ SV451 ) @ SV265 )
          | ( in @ SV451 @ SV392 ) )
        = $true )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2313]) ).

thf(2369,plain,
    ! [SV265: $i,SV392: $i,SV452: $i] :
      ( ( ( ~ ( in @ SV452 @ SV392 )
          | ( in @ ( ordered_pair @ ( sK9_D @ SV452 @ SV392 @ SV265 ) @ SV452 ) @ SV265 ) )
        = $true )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2314]) ).

thf(2370,plain,
    ! [SV267: $i,SV404: $i,SV453: $i] :
      ( ( ( ~ ( subset @ SV453 @ SV404 )
          | ( in @ SV453 @ ( sK5_SY2040 @ SV404 @ SV267 ) ) )
        = $true )
      | ( ( ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2315]) ).

thf(2371,plain,
    ! [SV267: $i,SV404: $i] :
      ( ( ( in @ SV404 @ ( sK4_B @ SV267 ) )
        = $false )
      | ( ( in @ ( sK5_SY2040 @ SV404 @ SV267 ) @ ( sK4_B @ SV267 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2316]) ).

thf(2372,plain,
    ! [SV439: $i,SV267: $i,SV433: $i] :
      ( ( ( ~ ( in @ SV433 @ ( sK4_B @ SV267 ) )
          | ~ ( subset @ SV439 @ SV433 ) )
        = $true )
      | ( ( in @ SV439 @ ( sK4_B @ SV267 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2317]) ).

thf(2373,plain,
    ! [SV372: $i,SV350: $i,SV454: $i,SV270: $i,SV440: $i] :
      ( ( ( ~ ( in @ SV440 @ SV270 )
          | ~ ( in @ SV454 @ SV350 )
          | ( ( sK23_D @ SV372 @ SV350 @ SV270 )
           != ( ordered_pair @ SV440 @ SV454 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2320]) ).

thf(2374,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
                | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2321]) ).

thf(2375,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ( ( sK23_D @ SV372 @ SV350 @ SV270 )
           != ( ordered_pair @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) ) ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2321]) ).

thf(2376,plain,
    ! [SV373: $i,SV441: $i,SV351: $i,SV270: $i] :
      ( ( ( ! [SY2638: $i,SY2639: $i] :
              ( ~ ( in @ SY2638 @ SV270 )
              | ~ ( in @ SY2639 @ SV351 )
              | ( SV441
               != ( ordered_pair @ SY2638 @ SY2639 ) ) ) )
        = $true )
      | ( ( in @ SV441 @ SV373 )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2322]) ).

thf(2377,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( ~ ( in @ SV442 @ SV373 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                    | ~ ( in @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
              | ( SV442
               != ( ordered_pair @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) ) ) ) )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2323]) ).

thf(2378,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
          | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2324]) ).

thf(2379,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
          | ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2325]) ).

thf(2380,plain,
    ! [SV353: $i,SV271: $i,SV375: $i,SV443: $i] :
      ( ( ( ~ ( in @ SV443 @ SV375 ) )
        = $true )
      | ( ( ( in @ SV443 @ SV271 )
          | ( in @ SV443 @ SV353 ) )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2327]) ).

thf(2381,plain,
    ! [SV353: $i,SV375: $i,SV271: $i] :
      ( ( ( ~ ! [SY2594: $i] :
                ( ~ ( in @ SY2594 @ SV271 )
                | ( in @ SY2594 @ SV375 ) ) )
        = $false )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2328]) ).

thf(2382,plain,
    ! [SV271: $i,SV375: $i,SV353: $i] :
      ( ( ( ~ ! [SY2595: $i] :
                ( ~ ( in @ SY2595 @ SV353 )
                | ( in @ SY2595 @ SV375 ) ) )
        = $false )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2328]) ).

thf(2383,plain,
    ! [SV444: $i,SV272: $i,SV435: $i] :
      ( ( ( ~ ( in @ SV435 @ ( sK39_B @ SV272 ) )
          | ~ ( subset @ SV444 @ SV435 ) )
        = $true )
      | ( ( in @ SV444 @ ( sK39_B @ SV272 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2329]) ).

thf(2384,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
        = $false )
      | ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2332]) ).

thf(2385,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
          | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2333]) ).

thf(2386,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
          | ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 ) )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2334]) ).

thf(2387,plain,
    ! [SV378: $i,SV360: $i,SV275: $i,SV445: $i] :
      ( ( ( ~ ( in @ SV445 @ SV275 )
          | ( in @ SV445 @ SV360 ) )
        = $true )
      | ( ( in @ SV445 @ SV378 )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2335]) ).

thf(2388,plain,
    ! [SV360: $i,SV275: $i,SV378: $i] :
      ( ( ( ~ ! [SY2598: $i] :
                ( ~ ( in @ SY2598 @ SV378 )
                | ( in @ SY2598 @ SV275 ) ) )
        = $false )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2336]) ).

thf(2389,plain,
    ! [SV275: $i,SV360: $i,SV378: $i] :
      ( ( ( ~ ! [SY2599: $i] :
                ( ~ ( in @ SY2599 @ SV378 )
                | ~ ( in @ SY2599 @ SV360 ) ) )
        = $false )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2336]) ).

thf(2390,plain,
    ! [SV332: $i,SV310: $i,SV428: $i] :
      ( ( ( in @ SV428 @ SV310 )
        = $false )
      | ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV428 )
        = $false )
      | ( ( ~ ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 ) )
        = $true )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2339]) ).

thf(2391,plain,
    ! [SV333: $i,SV311: $i,SV446: $i,SV429: $i] :
      ( ( ( ~ ( in @ SV429 @ SV446 ) )
        = $true )
      | ( ( ~ ( in @ SV446 @ SV311 ) )
        = $true )
      | ( ( in @ SV429 @ SV333 )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2342]) ).

thf(2392,plain,
    ! [SV311: $i,SV333: $i,SV430: $i] :
      ( ( ( ~ ( in @ SV430 @ ( sK13_D @ SV430 @ SV333 @ SV311 ) )
          | ~ ( in @ ( sK13_D @ SV430 @ SV333 @ SV311 ) @ SV311 ) )
        = $false )
      | ( ( in @ SV430 @ SV333 )
        = $false )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2343]) ).

thf(2393,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( element @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ ( powerset @ SV258 ) )
        = $true )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2344]) ).

thf(2394,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                  | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
              | ~ ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
                  | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) ) )
        = $true )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2345]) ).

thf(2395,plain,
    ! [SV294: $i,SV401: $i,SV258: $i] :
      ( ( ( ~ ! [SY2620: $i] :
                ( ~ ( element @ SY2620 @ ( powerset @ SV258 ) )
                | ~ ( in @ SY2620 @ SV401 )
                | ( in @ ( subset_complement @ SV258 @ SY2620 ) @ SV294 ) ) )
        = $false )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2346]) ).

thf(2396,plain,
    ! [SV401: $i,SV294: $i,SV258: $i] :
      ( ( ( ~ ! [SY2621: $i] :
                ( ~ ( element @ SY2621 @ ( powerset @ SV258 ) )
                | ~ ( in @ ( subset_complement @ SV258 @ SY2621 ) @ SV294 )
                | ( in @ SY2621 @ SV401 ) ) )
        = $false )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2346]) ).

thf(2397,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
        = $false )
      | ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 ) )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2347]) ).

thf(2398,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
        = $true )
      | ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2348]) ).

thf(2399,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
        = $true )
      | ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 )
        = $true )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2349]) ).

thf(2400,plain,
    ! [SV363: $i,SV335: $i,SV260: $i,SV437: $i] :
      ( ( ( ~ ( in @ SV437 @ SV260 ) )
        = $true )
      | ( ( ~ ( in @ SV437 @ SV335 ) )
        = $true )
      | ( ( in @ SV437 @ SV363 )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2350]) ).

thf(2401,plain,
    ! [SV335: $i,SV260: $i,SV363: $i] :
      ( ( ( ! [SY2579: $i] :
              ( ~ ( in @ SY2579 @ SV363 )
              | ( in @ SY2579 @ SV260 ) ) )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2351]) ).

thf(2402,plain,
    ! [SV260: $i,SV335: $i,SV363: $i] :
      ( ( ( ! [SY2580: $i] :
              ( ~ ( in @ SY2580 @ SV363 )
              | ( in @ SY2580 @ SV335 ) ) )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2352]) ).

thf(2403,plain,
    ! [SV447: $i,SV261: $i,SV385: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ SV447 ) @ SV261 )
        = $false )
      | ( ( ~ ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 ) )
        = $true )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2353]) ).

thf(2404,plain,
    ! [SV386: $i,SV261: $i,SV448: $i] :
      ( ( ( ! [SY2640: $i] :
              ~ ( in @ ( ordered_pair @ SV448 @ SY2640 ) @ SV261 ) )
        = $true )
      | ( ( in @ SV448 @ SV386 )
        = $true )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2354]) ).

thf(2405,plain,
    ! [SV261: $i,SV386: $i,SV449: $i] :
      ( ( ( ~ ( in @ SV449 @ SV386 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV449 @ ( sK16_D @ SV449 @ SV386 @ SV261 ) ) @ SV261 )
        = $true )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2355]) ).

thf(2406,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 )
              | ~ ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2358]) ).

thf(2407,plain,
    ! [SV412: $i,SV387: $i] :
      ( ( ( ! [SY2625: $i] :
              ( ~ ( in @ SY2625 @ SV387 )
              | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SY2625 ) ) )
        = $true )
      | ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2359]) ).

thf(2408,plain,
    ! [SV388: $i,SV413: $i] :
      ( ( ( ! [SY2626: $i] :
              ( ~ ( ~ ( in @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) @ SV388 )
                  | ~ ~ ( in @ SY2626 @ ( sK31_D @ SY2626 @ SV413 @ SV388 ) ) )
              | ( in @ SY2626 @ SV413 ) ) )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2360]) ).

thf(2409,plain,
    ! [SV388: $i,SV413: $i] :
      ( ( ( ! [SY2627: $i] :
              ( ~ ( in @ SY2627 @ SV413 )
              | ! [SY2613: $i] :
                  ( ~ ( in @ SY2613 @ SV388 )
                  | ( in @ SY2627 @ SY2613 ) ) ) )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2361]) ).

thf(2410,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 ) )
        = $true )
      | ( ( ( ( sK27_D @ SV365 @ SV339 @ SV263 )
           != SV263 ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2362]) ).

thf(2411,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ~ ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 ) )
        = $true )
      | ( ( ( ( sK27_D @ SV365 @ SV339 @ SV263 )
           != SV339 ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2363]) ).

thf(2412,plain,
    ! [SV340: $i,SV263: $i,SV366: $i,SV438: $i] :
      ( ( ( in @ SV438 @ SV366 )
        = $false )
      | ( ( ( SV438 = SV263 )
          | ( SV438 = SV340 ) )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2364]) ).

thf(2413,plain,
    ! [SV340: $i,SV366: $i,SV263: $i] :
      ( ( ( ! [SY2582: $i] :
              ( ( SY2582 != SV263 )
              | ( in @ SY2582 @ SV366 ) ) )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2365]) ).

thf(2414,plain,
    ! [SV263: $i,SV366: $i,SV340: $i] :
      ( ( ( ! [SY2583: $i] :
              ( ( SY2583 != SV340 )
              | ( in @ SY2583 @ SV366 ) ) )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2366]) ).

thf(2415,plain,
    ! [SV265: $i,SV391: $i,SV450: $i] :
      ( ( ( in @ ( ordered_pair @ SV450 @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
        = $false )
      | ( ( ~ ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 ) )
        = $true )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2367]) ).

thf(2416,plain,
    ! [SV392: $i,SV265: $i,SV451: $i] :
      ( ( ( ! [SY2641: $i] :
              ~ ( in @ ( ordered_pair @ SY2641 @ SV451 ) @ SV265 ) )
        = $true )
      | ( ( in @ SV451 @ SV392 )
        = $true )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2368]) ).

thf(2417,plain,
    ! [SV265: $i,SV392: $i,SV452: $i] :
      ( ( ( ~ ( in @ SV452 @ SV392 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK9_D @ SV452 @ SV392 @ SV265 ) @ SV452 ) @ SV265 )
        = $true )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2369]) ).

thf(2418,plain,
    ! [SV267: $i,SV404: $i,SV453: $i] :
      ( ( ( ~ ( subset @ SV453 @ SV404 ) )
        = $true )
      | ( ( in @ SV453 @ ( sK5_SY2040 @ SV404 @ SV267 ) )
        = $true )
      | ( ( ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2370]) ).

thf(2419,plain,
    ! [SV439: $i,SV267: $i,SV433: $i] :
      ( ( ( ~ ( in @ SV433 @ ( sK4_B @ SV267 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV439 @ SV433 ) )
        = $true )
      | ( ( in @ SV439 @ ( sK4_B @ SV267 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2372]) ).

thf(2420,plain,
    ! [SV372: $i,SV350: $i,SV454: $i,SV270: $i,SV440: $i] :
      ( ( ( ~ ( in @ SV440 @ SV270 )
          | ~ ( in @ SV454 @ SV350 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV372 @ SV350 @ SV270 )
           != ( ordered_pair @ SV440 @ SV454 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2373]) ).

thf(2421,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
              | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2374]) ).

thf(2422,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ( sK23_D @ SV372 @ SV350 @ SV270 )
          = ( ordered_pair @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) ) )
        = $true )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2375]) ).

thf(2423,plain,
    ! [SV373: $i,SV441: $i,SV351: $i,SV270: $i,SV455: $i] :
      ( ( ( ! [SY2642: $i] :
              ( ~ ( in @ SV455 @ SV270 )
              | ~ ( in @ SY2642 @ SV351 )
              | ( SV441
               != ( ordered_pair @ SV455 @ SY2642 ) ) ) )
        = $true )
      | ( ( in @ SV441 @ SV373 )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2376]) ).

thf(2424,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                    | ~ ( in @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
              | ( SV442
               != ( ordered_pair @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) ) ) ) )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2377]) ).

thf(2425,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 ) )
        = $true )
      | ( ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2378]) ).

thf(2426,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 ) )
        = $true )
      | ( ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2379]) ).

thf(2427,plain,
    ! [SV353: $i,SV271: $i,SV375: $i,SV443: $i] :
      ( ( ( in @ SV443 @ SV375 )
        = $false )
      | ( ( ( in @ SV443 @ SV271 )
          | ( in @ SV443 @ SV353 ) )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2380]) ).

thf(2428,plain,
    ! [SV353: $i,SV375: $i,SV271: $i] :
      ( ( ( ! [SY2594: $i] :
              ( ~ ( in @ SY2594 @ SV271 )
              | ( in @ SY2594 @ SV375 ) ) )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2381]) ).

thf(2429,plain,
    ! [SV271: $i,SV375: $i,SV353: $i] :
      ( ( ( ! [SY2595: $i] :
              ( ~ ( in @ SY2595 @ SV353 )
              | ( in @ SY2595 @ SV375 ) ) )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2382]) ).

thf(2430,plain,
    ! [SV444: $i,SV272: $i,SV435: $i] :
      ( ( ( ~ ( in @ SV435 @ ( sK39_B @ SV272 ) ) )
        = $true )
      | ( ( ~ ( subset @ SV444 @ SV435 ) )
        = $true )
      | ( ( in @ SV444 @ ( sK39_B @ SV272 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2383]) ).

thf(2431,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 )
        = $false )
      | ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
        = $true )
      | ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
        = $false )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2384]) ).

thf(2432,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV275 )
        = $true )
      | ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2385]) ).

thf(2433,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 ) )
        = $true )
      | ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2386]) ).

thf(2434,plain,
    ! [SV378: $i,SV360: $i,SV275: $i,SV445: $i] :
      ( ( ( ~ ( in @ SV445 @ SV275 ) )
        = $true )
      | ( ( in @ SV445 @ SV360 )
        = $true )
      | ( ( in @ SV445 @ SV378 )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2387]) ).

thf(2435,plain,
    ! [SV360: $i,SV275: $i,SV378: $i] :
      ( ( ( ! [SY2598: $i] :
              ( ~ ( in @ SY2598 @ SV378 )
              | ( in @ SY2598 @ SV275 ) ) )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2388]) ).

thf(2436,plain,
    ! [SV275: $i,SV360: $i,SV378: $i] :
      ( ( ( ! [SY2599: $i] :
              ( ~ ( in @ SY2599 @ SV378 )
              | ~ ( in @ SY2599 @ SV360 ) ) )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2389]) ).

thf(2437,plain,
    ! [SV428: $i,SV310: $i,SV332: $i] :
      ( ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV332 )
        = $false )
      | ( ( in @ ( sK14_C @ SV332 @ SV310 ) @ SV428 )
        = $false )
      | ( ( in @ SV428 @ SV310 )
        = $false )
      | ( ( SV332
          = ( union @ SV310 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2390]) ).

thf(2438,plain,
    ! [SV333: $i,SV311: $i,SV446: $i,SV429: $i] :
      ( ( ( in @ SV429 @ SV446 )
        = $false )
      | ( ( ~ ( in @ SV446 @ SV311 ) )
        = $true )
      | ( ( in @ SV429 @ SV333 )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2391]) ).

thf(2439,plain,
    ! [SV311: $i,SV333: $i,SV430: $i] :
      ( ( ( ~ ( in @ SV430 @ ( sK13_D @ SV430 @ SV333 @ SV311 ) ) )
        = $false )
      | ( ( in @ SV430 @ SV333 )
        = $false )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2392]) ).

thf(2440,plain,
    ! [SV311: $i,SV333: $i,SV430: $i] :
      ( ( ( ~ ( in @ ( sK13_D @ SV430 @ SV333 @ SV311 ) @ SV311 ) )
        = $false )
      | ( ( in @ SV430 @ SV333 )
        = $false )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2392]) ).

thf(2441,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
              | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
          | ~ ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
              | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) )
        = $false )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2394]) ).

thf(2442,plain,
    ! [SV294: $i,SV401: $i,SV258: $i] :
      ( ( ( ! [SY2620: $i] :
              ( ~ ( element @ SY2620 @ ( powerset @ SV258 ) )
              | ~ ( in @ SY2620 @ SV401 )
              | ( in @ ( subset_complement @ SV258 @ SY2620 ) @ SV294 ) ) )
        = $true )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2395]) ).

thf(2443,plain,
    ! [SV401: $i,SV294: $i,SV258: $i] :
      ( ( ( ! [SY2621: $i] :
              ( ~ ( element @ SY2621 @ ( powerset @ SV258 ) )
              | ~ ( in @ ( subset_complement @ SV258 @ SY2621 ) @ SV294 )
              | ( in @ SY2621 @ SV401 ) ) )
        = $true )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2396]) ).

thf(2444,plain,
    ! [SV260: $i,SV334: $i,SV362: $i] :
      ( ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV362 )
        = $false )
      | ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV260 )
        = $false )
      | ( ( in @ ( sK19_D @ SV362 @ SV334 @ SV260 ) @ SV334 )
        = $false )
      | ( ( SV362
          = ( set_intersection2 @ SV260 @ SV334 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2397]) ).

thf(2445,plain,
    ! [SV363: $i,SV335: $i,SV260: $i,SV437: $i] :
      ( ( ( in @ SV437 @ SV260 )
        = $false )
      | ( ( ~ ( in @ SV437 @ SV335 ) )
        = $true )
      | ( ( in @ SV437 @ SV363 )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2400]) ).

thf(2446,plain,
    ! [SV335: $i,SV260: $i,SV363: $i,SV456: $i] :
      ( ( ( ~ ( in @ SV456 @ SV363 )
          | ( in @ SV456 @ SV260 ) )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2401]) ).

thf(2447,plain,
    ! [SV260: $i,SV335: $i,SV363: $i,SV457: $i] :
      ( ( ( ~ ( in @ SV457 @ SV363 )
          | ( in @ SV457 @ SV335 ) )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2402]) ).

thf(2448,plain,
    ! [SV447: $i,SV261: $i,SV385: $i] :
      ( ( ( in @ ( sK17_C @ SV385 @ SV261 ) @ SV385 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK17_C @ SV385 @ SV261 ) @ SV447 ) @ SV261 )
        = $false )
      | ( ( SV385
          = ( relation_dom @ SV261 ) )
        = $true )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2403]) ).

thf(2449,plain,
    ! [SV386: $i,SV261: $i,SV458: $i,SV448: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV448 @ SV458 ) @ SV261 ) )
        = $true )
      | ( ( in @ SV448 @ SV386 )
        = $true )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2404]) ).

thf(2450,plain,
    ! [SV261: $i,SV386: $i,SV449: $i] :
      ( ( ( in @ SV449 @ SV386 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV449 @ ( sK16_D @ SV449 @ SV386 @ SV261 ) ) @ SV261 )
        = $true )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2405]) ).

thf(2451,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 )
          | ~ ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2406]) ).

thf(2452,plain,
    ! [SV412: $i,SV387: $i,SV459: $i] :
      ( ( ( ~ ( in @ SV459 @ SV387 )
          | ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV459 ) )
        = $true )
      | ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2407]) ).

thf(2453,plain,
    ! [SV388: $i,SV413: $i,SV460: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV460 @ SV413 @ SV388 ) @ SV388 )
              | ~ ~ ( in @ SV460 @ ( sK31_D @ SV460 @ SV413 @ SV388 ) ) )
          | ( in @ SV460 @ SV413 ) )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2408]) ).

thf(2454,plain,
    ! [SV388: $i,SV413: $i,SV461: $i] :
      ( ( ( ~ ( in @ SV461 @ SV413 )
          | ! [SY2643: $i] :
              ( ~ ( in @ SY2643 @ SV388 )
              | ( in @ SV461 @ SY2643 ) ) )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2409]) ).

thf(2455,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
        = $false )
      | ( ( ( ( sK27_D @ SV365 @ SV339 @ SV263 )
           != SV263 ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2410]) ).

thf(2456,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
        = $false )
      | ( ( ( ( sK27_D @ SV365 @ SV339 @ SV263 )
           != SV339 ) )
        = $true )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2411]) ).

thf(2457,plain,
    ! [SV366: $i,SV340: $i,SV263: $i,SV438: $i] :
      ( ( ( SV438 = SV263 )
        = $true )
      | ( ( SV438 = SV340 )
        = $true )
      | ( ( in @ SV438 @ SV366 )
        = $false )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2412]) ).

thf(2458,plain,
    ! [SV340: $i,SV366: $i,SV263: $i,SV462: $i] :
      ( ( ( ( SV462 != SV263 )
          | ( in @ SV462 @ SV366 ) )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2413]) ).

thf(2459,plain,
    ! [SV263: $i,SV366: $i,SV340: $i,SV463: $i] :
      ( ( ( ( SV463 != SV340 )
          | ( in @ SV463 @ SV366 ) )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2414]) ).

thf(2460,plain,
    ! [SV450: $i,SV265: $i,SV391: $i] :
      ( ( ( in @ ( sK10_C @ SV391 @ SV265 ) @ SV391 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV450 @ ( sK10_C @ SV391 @ SV265 ) ) @ SV265 )
        = $false )
      | ( ( SV391
          = ( relation_rng @ SV265 ) )
        = $true )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2415]) ).

thf(2461,plain,
    ! [SV392: $i,SV265: $i,SV451: $i,SV464: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV464 @ SV451 ) @ SV265 ) )
        = $true )
      | ( ( in @ SV451 @ SV392 )
        = $true )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2416]) ).

thf(2462,plain,
    ! [SV265: $i,SV392: $i,SV452: $i] :
      ( ( ( in @ SV452 @ SV392 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK9_D @ SV452 @ SV392 @ SV265 ) @ SV452 ) @ SV265 )
        = $true )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2417]) ).

thf(2463,plain,
    ! [SV267: $i,SV404: $i,SV453: $i] :
      ( ( ( subset @ SV453 @ SV404 )
        = $false )
      | ( ( in @ SV453 @ ( sK5_SY2040 @ SV404 @ SV267 ) )
        = $true )
      | ( ( ~ ( in @ SV404 @ ( sK4_B @ SV267 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2418]) ).

thf(2464,plain,
    ! [SV439: $i,SV267: $i,SV433: $i] :
      ( ( ( in @ SV433 @ ( sK4_B @ SV267 ) )
        = $false )
      | ( ( ~ ( subset @ SV439 @ SV433 ) )
        = $true )
      | ( ( in @ SV439 @ ( sK4_B @ SV267 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2419]) ).

thf(2465,plain,
    ! [SV372: $i,SV350: $i,SV454: $i,SV270: $i,SV440: $i] :
      ( ( ( ~ ( in @ SV440 @ SV270 ) )
        = $true )
      | ( ( ~ ( in @ SV454 @ SV350 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV372 @ SV350 @ SV270 )
           != ( ordered_pair @ SV440 @ SV454 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2420]) ).

thf(2466,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
          | ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2421]) ).

thf(2467,plain,
    ! [SV373: $i,SV441: $i,SV351: $i,SV465: $i,SV270: $i,SV455: $i] :
      ( ( ( ~ ( in @ SV455 @ SV270 )
          | ~ ( in @ SV465 @ SV351 )
          | ( SV441
           != ( ordered_pair @ SV455 @ SV465 ) ) )
        = $true )
      | ( ( in @ SV441 @ SV373 )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2423]) ).

thf(2468,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                | ~ ( in @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
          | ( SV442
           != ( ordered_pair @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) ) ) )
        = $false )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2424]) ).

thf(2469,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
        = $false )
      | ( ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2425]) ).

thf(2470,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
        = $false )
      | ( ( ~ ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 ) )
        = $true )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2426]) ).

thf(2471,plain,
    ! [SV375: $i,SV353: $i,SV271: $i,SV443: $i] :
      ( ( ( in @ SV443 @ SV271 )
        = $true )
      | ( ( in @ SV443 @ SV353 )
        = $true )
      | ( ( in @ SV443 @ SV375 )
        = $false )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2427]) ).

thf(2472,plain,
    ! [SV353: $i,SV375: $i,SV271: $i,SV466: $i] :
      ( ( ( ~ ( in @ SV466 @ SV271 )
          | ( in @ SV466 @ SV375 ) )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2428]) ).

thf(2473,plain,
    ! [SV271: $i,SV375: $i,SV353: $i,SV467: $i] :
      ( ( ( ~ ( in @ SV467 @ SV353 )
          | ( in @ SV467 @ SV375 ) )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2429]) ).

thf(2474,plain,
    ! [SV444: $i,SV272: $i,SV435: $i] :
      ( ( ( in @ SV435 @ ( sK39_B @ SV272 ) )
        = $false )
      | ( ( ~ ( subset @ SV444 @ SV435 ) )
        = $true )
      | ( ( in @ SV444 @ ( sK39_B @ SV272 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2430]) ).

thf(2475,plain,
    ! [SV275: $i,SV359: $i,SV377: $i] :
      ( ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV359 )
        = $false )
      | ( ( in @ ( sK12_D @ SV377 @ SV359 @ SV275 ) @ SV377 )
        = $true )
      | ( ( SV377
          = ( set_difference @ SV275 @ SV359 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2433]) ).

thf(2476,plain,
    ! [SV378: $i,SV360: $i,SV275: $i,SV445: $i] :
      ( ( ( in @ SV445 @ SV275 )
        = $false )
      | ( ( in @ SV445 @ SV360 )
        = $true )
      | ( ( in @ SV445 @ SV378 )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2434]) ).

thf(2477,plain,
    ! [SV360: $i,SV275: $i,SV378: $i,SV468: $i] :
      ( ( ( ~ ( in @ SV468 @ SV378 )
          | ( in @ SV468 @ SV275 ) )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2435]) ).

thf(2478,plain,
    ! [SV275: $i,SV360: $i,SV378: $i,SV469: $i] :
      ( ( ( ~ ( in @ SV469 @ SV378 )
          | ~ ( in @ SV469 @ SV360 ) )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2436]) ).

thf(2479,plain,
    ! [SV333: $i,SV429: $i,SV311: $i,SV446: $i] :
      ( ( ( in @ SV446 @ SV311 )
        = $false )
      | ( ( in @ SV429 @ SV446 )
        = $false )
      | ( ( in @ SV429 @ SV333 )
        = $true )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2438]) ).

thf(2480,plain,
    ! [SV311: $i,SV333: $i,SV430: $i] :
      ( ( ( in @ SV430 @ ( sK13_D @ SV430 @ SV333 @ SV311 ) )
        = $true )
      | ( ( in @ SV430 @ SV333 )
        = $false )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2439]) ).

thf(2481,plain,
    ! [SV311: $i,SV333: $i,SV430: $i] :
      ( ( ( in @ ( sK13_D @ SV430 @ SV333 @ SV311 ) @ SV311 )
        = $true )
      | ( ( in @ SV430 @ SV333 )
        = $false )
      | ( ( SV333
          = ( union @ SV311 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2440]) ).

thf(2482,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
              | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) )
        = $false )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2441]) ).

thf(2483,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
              | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) ) )
        = $false )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2441]) ).

thf(2484,plain,
    ! [SV294: $i,SV401: $i,SV258: $i,SV470: $i] :
      ( ( ( ~ ( element @ SV470 @ ( powerset @ SV258 ) )
          | ~ ( in @ SV470 @ SV401 )
          | ( in @ ( subset_complement @ SV258 @ SV470 ) @ SV294 ) )
        = $true )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2442]) ).

thf(2485,plain,
    ! [SV401: $i,SV294: $i,SV258: $i,SV471: $i] :
      ( ( ( ~ ( element @ SV471 @ ( powerset @ SV258 ) )
          | ~ ( in @ ( subset_complement @ SV258 @ SV471 ) @ SV294 )
          | ( in @ SV471 @ SV401 ) )
        = $true )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2443]) ).

thf(2486,plain,
    ! [SV363: $i,SV260: $i,SV335: $i,SV437: $i] :
      ( ( ( in @ SV437 @ SV335 )
        = $false )
      | ( ( in @ SV437 @ SV260 )
        = $false )
      | ( ( in @ SV437 @ SV363 )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2445]) ).

thf(2487,plain,
    ! [SV335: $i,SV260: $i,SV363: $i,SV456: $i] :
      ( ( ( ~ ( in @ SV456 @ SV363 ) )
        = $true )
      | ( ( in @ SV456 @ SV260 )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2446]) ).

thf(2488,plain,
    ! [SV260: $i,SV335: $i,SV363: $i,SV457: $i] :
      ( ( ( ~ ( in @ SV457 @ SV363 ) )
        = $true )
      | ( ( in @ SV457 @ SV335 )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2447]) ).

thf(2489,plain,
    ! [SV386: $i,SV261: $i,SV458: $i,SV448: $i] :
      ( ( ( in @ ( ordered_pair @ SV448 @ SV458 ) @ SV261 )
        = $false )
      | ( ( in @ SV448 @ SV386 )
        = $true )
      | ( ( SV386
          = ( relation_dom @ SV261 ) )
        = $false )
      | ( ( relation @ SV261 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2449]) ).

thf(2490,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 ) )
        = $false )
      | ( ( ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2451]) ).

thf(2491,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) ) )
        = $false )
      | ( ( ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2451]) ).

thf(2492,plain,
    ! [SV412: $i,SV387: $i,SV459: $i] :
      ( ( ( ~ ( in @ SV459 @ SV387 ) )
        = $true )
      | ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV459 )
        = $true )
      | ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2452]) ).

thf(2493,plain,
    ! [SV388: $i,SV413: $i,SV460: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_D @ SV460 @ SV413 @ SV388 ) @ SV388 )
              | ~ ~ ( in @ SV460 @ ( sK31_D @ SV460 @ SV413 @ SV388 ) ) ) )
        = $true )
      | ( ( in @ SV460 @ SV413 )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2453]) ).

thf(2494,plain,
    ! [SV388: $i,SV413: $i,SV461: $i] :
      ( ( ( ~ ( in @ SV461 @ SV413 ) )
        = $true )
      | ( ( ! [SY2643: $i] :
              ( ~ ( in @ SY2643 @ SV388 )
              | ( in @ SV461 @ SY2643 ) ) )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2454]) ).

thf(2495,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ( sK27_D @ SV365 @ SV339 @ SV263 )
          = SV263 )
        = $false )
      | ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
        = $false )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2455]) ).

thf(2496,plain,
    ! [SV263: $i,SV339: $i,SV365: $i] :
      ( ( ( ( sK27_D @ SV365 @ SV339 @ SV263 )
          = SV339 )
        = $false )
      | ( ( in @ ( sK27_D @ SV365 @ SV339 @ SV263 ) @ SV365 )
        = $false )
      | ( ( SV365
          = ( unordered_pair @ SV263 @ SV339 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2456]) ).

thf(2497,plain,
    ! [SV340: $i,SV366: $i,SV263: $i,SV462: $i] :
      ( ( ( ( SV462 != SV263 ) )
        = $true )
      | ( ( in @ SV462 @ SV366 )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2458]) ).

thf(2498,plain,
    ! [SV263: $i,SV366: $i,SV340: $i,SV463: $i] :
      ( ( ( ( SV463 != SV340 ) )
        = $true )
      | ( ( in @ SV463 @ SV366 )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2459]) ).

thf(2499,plain,
    ! [SV392: $i,SV265: $i,SV451: $i,SV464: $i] :
      ( ( ( in @ ( ordered_pair @ SV464 @ SV451 ) @ SV265 )
        = $false )
      | ( ( in @ SV451 @ SV392 )
        = $true )
      | ( ( SV392
          = ( relation_rng @ SV265 ) )
        = $false )
      | ( ( relation @ SV265 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2461]) ).

thf(2500,plain,
    ! [SV453: $i,SV267: $i,SV404: $i] :
      ( ( ( in @ SV404 @ ( sK4_B @ SV267 ) )
        = $false )
      | ( ( in @ SV453 @ ( sK5_SY2040 @ SV404 @ SV267 ) )
        = $true )
      | ( ( subset @ SV453 @ SV404 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2463]) ).

thf(2501,plain,
    ! [SV267: $i,SV433: $i,SV439: $i] :
      ( ( ( subset @ SV439 @ SV433 )
        = $false )
      | ( ( in @ SV433 @ ( sK4_B @ SV267 ) )
        = $false )
      | ( ( in @ SV439 @ ( sK4_B @ SV267 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2464]) ).

thf(2502,plain,
    ! [SV372: $i,SV350: $i,SV454: $i,SV270: $i,SV440: $i] :
      ( ( ( in @ SV440 @ SV270 )
        = $false )
      | ( ( ~ ( in @ SV454 @ SV350 ) )
        = $true )
      | ( ( ( ( sK23_D @ SV372 @ SV350 @ SV270 )
           != ( ordered_pair @ SV440 @ SV454 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2465]) ).

thf(2503,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ~ ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2466]) ).

thf(2504,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ~ ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 ) )
        = $false )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2466]) ).

thf(2505,plain,
    ! [SV373: $i,SV441: $i,SV351: $i,SV465: $i,SV270: $i,SV455: $i] :
      ( ( ( ~ ( in @ SV455 @ SV270 )
          | ~ ( in @ SV465 @ SV351 ) )
        = $true )
      | ( ( ( SV441
           != ( ordered_pair @ SV455 @ SV465 ) ) )
        = $true )
      | ( ( in @ SV441 @ SV373 )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2467]) ).

thf(2506,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV270 )
                | ~ ( in @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV351 ) ) )
        = $false )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2468]) ).

thf(2507,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( ( SV442
           != ( ordered_pair @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) ) ) )
        = $false )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2468]) ).

thf(2508,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV271 )
        = $false )
      | ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
        = $false )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2469]) ).

thf(2509,plain,
    ! [SV271: $i,SV352: $i,SV374: $i] :
      ( ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV352 )
        = $false )
      | ( ( in @ ( sK26_D @ SV374 @ SV352 @ SV271 ) @ SV374 )
        = $false )
      | ( ( SV374
          = ( set_union2 @ SV271 @ SV352 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2470]) ).

thf(2510,plain,
    ! [SV353: $i,SV375: $i,SV271: $i,SV466: $i] :
      ( ( ( ~ ( in @ SV466 @ SV271 ) )
        = $true )
      | ( ( in @ SV466 @ SV375 )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2472]) ).

thf(2511,plain,
    ! [SV271: $i,SV375: $i,SV353: $i,SV467: $i] :
      ( ( ( ~ ( in @ SV467 @ SV353 ) )
        = $true )
      | ( ( in @ SV467 @ SV375 )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2473]) ).

thf(2512,plain,
    ! [SV272: $i,SV435: $i,SV444: $i] :
      ( ( ( subset @ SV444 @ SV435 )
        = $false )
      | ( ( in @ SV435 @ ( sK39_B @ SV272 ) )
        = $false )
      | ( ( in @ SV444 @ ( sK39_B @ SV272 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2474]) ).

thf(2513,plain,
    ! [SV360: $i,SV275: $i,SV378: $i,SV468: $i] :
      ( ( ( ~ ( in @ SV468 @ SV378 ) )
        = $true )
      | ( ( in @ SV468 @ SV275 )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2477]) ).

thf(2514,plain,
    ! [SV275: $i,SV360: $i,SV378: $i,SV469: $i] :
      ( ( ( ~ ( in @ SV469 @ SV378 ) )
        = $true )
      | ( ( ~ ( in @ SV469 @ SV360 ) )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2478]) ).

thf(2515,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
          | ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
        = $true )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2482]) ).

thf(2516,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
          | ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
        = $true )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2483]) ).

thf(2517,plain,
    ! [SV294: $i,SV401: $i,SV258: $i,SV470: $i] :
      ( ( ( ~ ( element @ SV470 @ ( powerset @ SV258 ) ) )
        = $true )
      | ( ( ~ ( in @ SV470 @ SV401 )
          | ( in @ ( subset_complement @ SV258 @ SV470 ) @ SV294 ) )
        = $true )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2484]) ).

thf(2518,plain,
    ! [SV401: $i,SV294: $i,SV258: $i,SV471: $i] :
      ( ( ( ~ ( element @ SV471 @ ( powerset @ SV258 ) ) )
        = $true )
      | ( ( ~ ( in @ ( subset_complement @ SV258 @ SV471 ) @ SV294 )
          | ( in @ SV471 @ SV401 ) )
        = $true )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2485]) ).

thf(2519,plain,
    ! [SV335: $i,SV260: $i,SV363: $i,SV456: $i] :
      ( ( ( in @ SV456 @ SV363 )
        = $false )
      | ( ( in @ SV456 @ SV260 )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2487]) ).

thf(2520,plain,
    ! [SV260: $i,SV335: $i,SV363: $i,SV457: $i] :
      ( ( ( in @ SV457 @ SV363 )
        = $false )
      | ( ( in @ SV457 @ SV335 )
        = $true )
      | ( ( SV363
          = ( set_intersection2 @ SV260 @ SV335 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2488]) ).

thf(2521,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 )
        = $true )
      | ( ( ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2490]) ).

thf(2522,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2491]) ).

thf(2523,plain,
    ! [SV412: $i,SV387: $i,SV459: $i] :
      ( ( ( in @ SV459 @ SV387 )
        = $false )
      | ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV459 )
        = $true )
      | ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2492]) ).

thf(2524,plain,
    ! [SV388: $i,SV413: $i,SV460: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV460 @ SV413 @ SV388 ) @ SV388 )
          | ~ ~ ( in @ SV460 @ ( sK31_D @ SV460 @ SV413 @ SV388 ) ) )
        = $false )
      | ( ( in @ SV460 @ SV413 )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2493]) ).

thf(2525,plain,
    ! [SV388: $i,SV413: $i,SV461: $i] :
      ( ( ( in @ SV461 @ SV413 )
        = $false )
      | ( ( ! [SY2643: $i] :
              ( ~ ( in @ SY2643 @ SV388 )
              | ( in @ SV461 @ SY2643 ) ) )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2494]) ).

thf(2526,plain,
    ! [SV340: $i,SV366: $i,SV263: $i,SV462: $i] :
      ( ( ( SV462 = SV263 )
        = $false )
      | ( ( in @ SV462 @ SV366 )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2497]) ).

thf(2527,plain,
    ! [SV263: $i,SV366: $i,SV340: $i,SV463: $i] :
      ( ( ( SV463 = SV340 )
        = $false )
      | ( ( in @ SV463 @ SV366 )
        = $true )
      | ( ( SV366
          = ( unordered_pair @ SV263 @ SV340 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2498]) ).

thf(2528,plain,
    ! [SV372: $i,SV270: $i,SV440: $i,SV350: $i,SV454: $i] :
      ( ( ( in @ SV454 @ SV350 )
        = $false )
      | ( ( in @ SV440 @ SV270 )
        = $false )
      | ( ( ( ( sK23_D @ SV372 @ SV350 @ SV270 )
           != ( ordered_pair @ SV440 @ SV454 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2502]) ).

thf(2529,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( in @ ( sK24_SY2054 @ SV372 @ SV350 @ SV270 ) @ SV270 )
        = $true )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2503]) ).

thf(2530,plain,
    ! [SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( in @ ( sK25_SY2056 @ SV372 @ SV350 @ SV270 ) @ SV350 )
        = $true )
      | ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2504]) ).

thf(2531,plain,
    ! [SV373: $i,SV441: $i,SV351: $i,SV465: $i,SV270: $i,SV455: $i] :
      ( ( ( ~ ( in @ SV455 @ SV270 ) )
        = $true )
      | ( ( ~ ( in @ SV465 @ SV351 ) )
        = $true )
      | ( ( ( SV441
           != ( ordered_pair @ SV455 @ SV465 ) ) )
        = $true )
      | ( ( in @ SV441 @ SV373 )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2505]) ).

thf(2532,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV270 )
              | ~ ( in @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV351 ) ) )
        = $true )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2506]) ).

thf(2533,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( SV442
          = ( ordered_pair @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) ) )
        = $true )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2507]) ).

thf(2534,plain,
    ! [SV353: $i,SV375: $i,SV271: $i,SV466: $i] :
      ( ( ( in @ SV466 @ SV271 )
        = $false )
      | ( ( in @ SV466 @ SV375 )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2510]) ).

thf(2535,plain,
    ! [SV271: $i,SV375: $i,SV353: $i,SV467: $i] :
      ( ( ( in @ SV467 @ SV353 )
        = $false )
      | ( ( in @ SV467 @ SV375 )
        = $true )
      | ( ( SV375
          = ( set_union2 @ SV271 @ SV353 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2511]) ).

thf(2536,plain,
    ! [SV360: $i,SV275: $i,SV378: $i,SV468: $i] :
      ( ( ( in @ SV468 @ SV378 )
        = $false )
      | ( ( in @ SV468 @ SV275 )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2513]) ).

thf(2537,plain,
    ! [SV275: $i,SV360: $i,SV378: $i,SV469: $i] :
      ( ( ( in @ SV469 @ SV378 )
        = $false )
      | ( ( ~ ( in @ SV469 @ SV360 ) )
        = $true )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2514]) ).

thf(2538,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 ) )
        = $true )
      | ( ( ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
        = $true )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2515]) ).

thf(2539,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
        = $true )
      | ( ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 )
        = $true )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2516]) ).

thf(2540,plain,
    ! [SV294: $i,SV401: $i,SV258: $i,SV470: $i] :
      ( ( ( element @ SV470 @ ( powerset @ SV258 ) )
        = $false )
      | ( ( ~ ( in @ SV470 @ SV401 )
          | ( in @ ( subset_complement @ SV258 @ SV470 ) @ SV294 ) )
        = $true )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2517]) ).

thf(2541,plain,
    ! [SV401: $i,SV294: $i,SV258: $i,SV471: $i] :
      ( ( ( element @ SV471 @ ( powerset @ SV258 ) )
        = $false )
      | ( ( ~ ( in @ ( subset_complement @ SV258 @ SV471 ) @ SV294 )
          | ( in @ SV471 @ SV401 ) )
        = $true )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2518]) ).

thf(2542,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 )
        = $false )
      | ( ( in @ ( sK33_SY2057 @ SV412 @ SV387 ) @ SV387 )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2521]) ).

thf(2543,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) )
        = $false )
      | ( ( ~ ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 ) )
        = $true )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2522]) ).

thf(2544,plain,
    ! [SV388: $i,SV413: $i,SV460: $i] :
      ( ( ( ~ ( in @ ( sK31_D @ SV460 @ SV413 @ SV388 ) @ SV388 ) )
        = $false )
      | ( ( in @ SV460 @ SV413 )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2524]) ).

thf(2545,plain,
    ! [SV388: $i,SV413: $i,SV460: $i] :
      ( ( ( ~ ~ ( in @ SV460 @ ( sK31_D @ SV460 @ SV413 @ SV388 ) ) )
        = $false )
      | ( ( in @ SV460 @ SV413 )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2524]) ).

thf(2546,plain,
    ! [SV413: $i,SV461: $i,SV388: $i,SV472: $i] :
      ( ( ( ~ ( in @ SV472 @ SV388 )
          | ( in @ SV461 @ SV472 ) )
        = $true )
      | ( ( in @ SV461 @ SV413 )
        = $false )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2525]) ).

thf(2547,plain,
    ! [SV454: $i,SV440: $i,SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( ( sK23_D @ SV372 @ SV350 @ SV270 )
          = ( ordered_pair @ SV440 @ SV454 ) )
        = $false )
      | ( ( in @ SV440 @ SV270 )
        = $false )
      | ( ( in @ SV454 @ SV350 )
        = $false )
      | ( ( ~ ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 ) )
        = $true )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2528]) ).

thf(2548,plain,
    ! [SV373: $i,SV441: $i,SV351: $i,SV465: $i,SV270: $i,SV455: $i] :
      ( ( ( in @ SV455 @ SV270 )
        = $false )
      | ( ( ~ ( in @ SV465 @ SV351 ) )
        = $true )
      | ( ( ( SV441
           != ( ordered_pair @ SV455 @ SV465 ) ) )
        = $true )
      | ( ( in @ SV441 @ SV373 )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2531]) ).

thf(2549,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( ~ ( in @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV270 )
          | ~ ( in @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
        = $false )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2532]) ).

thf(2550,plain,
    ! [SV275: $i,SV378: $i,SV360: $i,SV469: $i] :
      ( ( ( in @ SV469 @ SV360 )
        = $false )
      | ( ( in @ SV469 @ SV378 )
        = $false )
      | ( ( SV378
          = ( set_difference @ SV275 @ SV360 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2537]) ).

thf(2551,plain,
    ! [SV258: $i,SV294: $i,SV400: $i] :
      ( ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
        = $false )
      | ( ( ~ ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 ) )
        = $true )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2538]) ).

thf(2552,plain,
    ! [SV294: $i,SV258: $i,SV401: $i,SV470: $i] :
      ( ( ( ~ ( in @ SV470 @ SV401 ) )
        = $true )
      | ( ( in @ ( subset_complement @ SV258 @ SV470 ) @ SV294 )
        = $true )
      | ( ( element @ SV470 @ ( powerset @ SV258 ) )
        = $false )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2540]) ).

thf(2553,plain,
    ! [SV401: $i,SV294: $i,SV471: $i,SV258: $i] :
      ( ( ( ~ ( in @ ( subset_complement @ SV258 @ SV471 ) @ SV294 ) )
        = $true )
      | ( ( in @ SV471 @ SV401 )
        = $true )
      | ( ( element @ SV471 @ ( powerset @ SV258 ) )
        = $false )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2541]) ).

thf(2554,plain,
    ! [SV387: $i,SV412: $i] :
      ( ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ SV412 )
        = $false )
      | ( ( in @ ( sK32_C @ SV412 @ SV387 ) @ ( sK33_SY2057 @ SV412 @ SV387 ) )
        = $false )
      | ( ( SV412
          = ( set_meet @ SV387 ) )
        = $true )
      | ( ( SV387 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2543]) ).

thf(2555,plain,
    ! [SV388: $i,SV413: $i,SV460: $i] :
      ( ( ( in @ ( sK31_D @ SV460 @ SV413 @ SV388 ) @ SV388 )
        = $true )
      | ( ( in @ SV460 @ SV413 )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2544]) ).

thf(2556,plain,
    ! [SV388: $i,SV413: $i,SV460: $i] :
      ( ( ( ~ ( in @ SV460 @ ( sK31_D @ SV460 @ SV413 @ SV388 ) ) )
        = $true )
      | ( ( in @ SV460 @ SV413 )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2545]) ).

thf(2557,plain,
    ! [SV413: $i,SV461: $i,SV388: $i,SV472: $i] :
      ( ( ( ~ ( in @ SV472 @ SV388 ) )
        = $true )
      | ( ( in @ SV461 @ SV472 )
        = $true )
      | ( ( in @ SV461 @ SV413 )
        = $false )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2546]) ).

thf(2558,plain,
    ! [SV440: $i,SV454: $i,SV270: $i,SV350: $i,SV372: $i] :
      ( ( ( in @ ( sK23_D @ SV372 @ SV350 @ SV270 ) @ SV372 )
        = $false )
      | ( ( in @ SV454 @ SV350 )
        = $false )
      | ( ( in @ SV440 @ SV270 )
        = $false )
      | ( ( ( sK23_D @ SV372 @ SV350 @ SV270 )
          = ( ordered_pair @ SV440 @ SV454 ) )
        = $false )
      | ( ( SV372
          = ( cartesian_product2 @ SV270 @ SV350 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2547]) ).

thf(2559,plain,
    ! [SV373: $i,SV441: $i,SV270: $i,SV455: $i,SV351: $i,SV465: $i] :
      ( ( ( in @ SV465 @ SV351 )
        = $false )
      | ( ( in @ SV455 @ SV270 )
        = $false )
      | ( ( ( SV441
           != ( ordered_pair @ SV455 @ SV465 ) ) )
        = $true )
      | ( ( in @ SV441 @ SV373 )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2548]) ).

thf(2560,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( ~ ( in @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV270 ) )
        = $false )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2549]) ).

thf(2561,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( ~ ( in @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV351 ) )
        = $false )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2549]) ).

thf(2562,plain,
    ! [SV294: $i,SV400: $i,SV258: $i] :
      ( ( ( in @ ( subset_complement @ SV258 @ ( sK8_D @ SV400 @ SV294 @ SV258 ) ) @ SV294 )
        = $false )
      | ( ( in @ ( sK8_D @ SV400 @ SV294 @ SV258 ) @ SV400 )
        = $false )
      | ( ( SV400
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $true )
      | ( ( element @ SV400 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2551]) ).

thf(2563,plain,
    ! [SV294: $i,SV258: $i,SV401: $i,SV470: $i] :
      ( ( ( in @ SV470 @ SV401 )
        = $false )
      | ( ( in @ ( subset_complement @ SV258 @ SV470 ) @ SV294 )
        = $true )
      | ( ( element @ SV470 @ ( powerset @ SV258 ) )
        = $false )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2552]) ).

thf(2564,plain,
    ! [SV401: $i,SV294: $i,SV471: $i,SV258: $i] :
      ( ( ( in @ ( subset_complement @ SV258 @ SV471 ) @ SV294 )
        = $false )
      | ( ( in @ SV471 @ SV401 )
        = $true )
      | ( ( element @ SV471 @ ( powerset @ SV258 ) )
        = $false )
      | ( ( SV401
          = ( complements_of_subsets @ SV258 @ SV294 ) )
        = $false )
      | ( ( element @ SV401 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false )
      | ( ( element @ SV294 @ ( powerset @ ( powerset @ SV258 ) ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2553]) ).

thf(2565,plain,
    ! [SV388: $i,SV413: $i,SV460: $i] :
      ( ( ( in @ SV460 @ ( sK31_D @ SV460 @ SV413 @ SV388 ) )
        = $false )
      | ( ( in @ SV460 @ SV413 )
        = $true )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2556]) ).

thf(2566,plain,
    ! [SV413: $i,SV461: $i,SV388: $i,SV472: $i] :
      ( ( ( in @ SV472 @ SV388 )
        = $false )
      | ( ( in @ SV461 @ SV472 )
        = $true )
      | ( ( in @ SV461 @ SV413 )
        = $false )
      | ( ( SV413
          = ( set_meet @ SV388 ) )
        = $false )
      | ( ( SV388 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2557]) ).

thf(2567,plain,
    ! [SV373: $i,SV351: $i,SV270: $i,SV465: $i,SV455: $i,SV441: $i] :
      ( ( ( SV441
          = ( ordered_pair @ SV455 @ SV465 ) )
        = $false )
      | ( ( in @ SV455 @ SV270 )
        = $false )
      | ( ( in @ SV465 @ SV351 )
        = $false )
      | ( ( in @ SV441 @ SV373 )
        = $true )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2559]) ).

thf(2568,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( in @ ( sK21_E @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV270 )
        = $true )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2560]) ).

thf(2569,plain,
    ! [SV270: $i,SV351: $i,SV373: $i,SV442: $i] :
      ( ( ( in @ ( sK22_SY2051 @ SV442 @ SV373 @ SV351 @ SV270 ) @ SV351 )
        = $true )
      | ( ( in @ SV442 @ SV373 )
        = $false )
      | ( ( SV373
          = ( cartesian_product2 @ SV270 @ SV351 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2561]) ).

thf(2570,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[1472,2569,2568,2567,2566,2565,2564,2563,2562,2558,2555,2554,2550,2542,2539,2536,2535,2534,2533,2530,2529,2527,2526,2523,2520,2519,2512,2509,2508,2501,2500,2499,2496,2495,2489,2486,2481,2480,2479,2476,2475,2471,2462,2460,2457,2450,2448,2444,2437,2432,2431,2422,2399,2398,2393,2371,2357,2356,2341,2340,2338,2337,2331,2330,2326,2319,2318,2312,2308,2305,2304,2298,2295,2279,2278,2277,2270,2269,2268,2258,2255,2236,2235,2220,2214,2213,2208,2207,2201,2199,2186,2180,2179,2168,2164,2147,2136,2135,2120,2119,2118,2110,2079,2078,2069,2055,2048,2046,2039,2002,2001,2000,1969,1965,1964,1961,1960,1944,1929,1926,1920,1906,1871,1855,1852,1786,1785,1782,1780,1775,1714,1711,1708,1707,1703,1688,1687,1641,1640,1634,1630,1573,1528,1473]) ).

thf(2571,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[2570,1418]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : SEU180+2 : TPTP v8.1.0. Released v3.3.0.
% 0.06/0.13  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.12/0.34  % Computer : n019.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Sun Jun 19 14:08:09 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.19/0.41  ...
% 0.19/0.46  
% 0.19/0.46   No.of.Axioms: 149
% 0.19/0.46  
% 0.19/0.46   Length.of.Defs: 0
% 0.19/0.46  
% 0.19/0.46   Contains.Choice.Funs: false
% 0.19/0.50  ..........
% 0.19/0.55  (rf:2,axioms:128,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:151,loop_count:0,foatp_calls:0,translation:fof_full).................................................................................................................................................eprover: CPU time limit exceeded, terminating
% 75.41/75.72  ......ignored arguments false
% 75.44/75.79  ....
% 75.52/75.84  (rf:0,axioms:149,ps:0,u:1,ude:false,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:false,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:151,loop_count:0,foatp_calls:0,translation:fof_full)...................................................................................................................................................eprover: CPU time limit exceeded, terminating
% 150.18/150.58  ...............
% 150.40/150.71  (rf:2,axioms:128,ps:0,u:1,ude:true,rLeibEQ:false,rAndEQ:false,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:151,loop_count:0,foatp_calls:0,translation:fof_full).................................................................................................................................................eprover: CPU time limit exceeded, terminating
% 225.07/225.41  ..................
% 225.29/225.61  (rf:-1,axioms:53,ps:0,u:1,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:151,loop_count:0,foatp_calls:0,translation:fof_full).........................................................................................................................................................................................
% 231.00/231.33  
% 231.00/231.33  ********************************
% 231.00/231.33  *   All subproblems solved!    *
% 231.00/231.33  ********************************
% 231.00/231.33  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:-1,axioms:55,ps:0,u:1,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:71,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:2570,loop_count:0,foatp_calls:1,translation:fof_full)
% 232.87/233.20  
% 232.87/233.20  %**** Beginning of derivation protocol ****
% 232.87/233.20  % SZS output start CNFRefutation
% See solution above
% 232.87/233.22  
% 232.87/233.22  %**** End of derivation protocol ****
% 232.87/233.22  %**** no. of clauses in derivation: 2475 ****
% 232.87/233.22  %**** clause counter: 2570 ****
% 232.87/233.22  
% 232.87/233.22  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:-1,axioms:55,ps:0,u:1,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:71,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:2570,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------