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LEO-II---2.3.1.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SEU172+2 : TPTP v9.3.1. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p

% Computer : n014.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Oct  7 10:43:14 AM UTC 2026

% Result   : Theorem 3.70s 0.92s
% Output   : CNFRefutation 3.70s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   33
%            Number of leaves      :   36
% Syntax   : Number of formulae    :  701 ( 242 unt;   0 typ;   0 def)
%            Number of atoms       : 5853 (2186 equ;   0 cnn)
%            Maximal formula atoms :    6 (   8 avg)
%            Number of connectives : 12182 (2890   ~;2125   |;  45   &;7014   @)
%                                         (  57 <=>;  51  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   41 (  38 usr;   6 con; 0-3 aty)
%            Number of variables   : 1971 (   0   ^;1956   !;  15   ?;1971   :)

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

thf(tp_cartesian_product2,type,
    cartesian_product2: $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_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_sK10_SY132,type,
    sK10_SY132: $i > $i > $i ).

thf(tp_sK11_SY139,type,
    sK11_SY139: $i > $i > $i ).

thf(tp_sK12_SY145,type,
    sK12_SY145: $i > $i > $i ).

thf(tp_sK13_SY151,type,
    sK13_SY151: $i > $i > $i > $i ).

thf(tp_sK14_SY153,type,
    sK14_SY153: $i > $i > $i > $i ).

thf(tp_sK15_SY155,type,
    sK15_SY155: $i > $i > $i > $i ).

thf(tp_sK16_SY157,type,
    sK16_SY157: $i > $i > $i > $i ).

thf(tp_sK17_SY142,type,
    sK17_SY142: $i > $i > $i ).

thf(tp_sK18_SY159,type,
    sK18_SY159: $i > $i > $i > $i ).

thf(tp_sK19_SY162,type,
    sK19_SY162: $i > $i > $i ).

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

thf(tp_sK20_SY162,type,
    sK20_SY162: $i > $i > $i > $i ).

thf(tp_sK2_SY67,type,
    sK2_SY67: $i ).

thf(tp_sK3_SY69,type,
    sK3_SY69: $i ).

thf(tp_sK4_SY97,type,
    sK4_SY97: $i > $i ).

thf(tp_sK5_SY121,type,
    sK5_SY121: $i > $i ).

thf(tp_sK6_SY149,type,
    sK6_SY149: $i > $i > $i ).

thf(tp_sK7_SY112,type,
    sK7_SY112: $i > $i ).

thf(tp_sK8_SY96,type,
    sK8_SY96: $i > $i ).

thf(tp_sK9_SY123,type,
    sK9_SY123: $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_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_union,type,
    union: $i > $i ).

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

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

thf(7,axiom,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( in @ C @ A )
        <=> ( in @ C @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_tarski) ).

thf(13,axiom,
    ! [A: $i] :
    ? [B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
      & ( empty @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc2_subset_1) ).

thf(15,axiom,
    ! [A: $i] :
      ( ~ ( empty @ A )
     => ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ~ ( empty @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',rc1_subset_1) ).

thf(17,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ( ( subset_complement @ A @ ( subset_complement @ A @ B ) )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',involutiveness_k3_subset_1) ).

thf(24,axiom,
    ! [A: $i] :
      ~ ( empty @ ( powerset @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_subset_1) ).

thf(25,axiom,
    ! [A: $i] :
    ? [B: $i] : ( element @ B @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_m1_subset_1) ).

thf(26,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_m1_subset_1) ).

thf(27,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_xboole_0) ).

thf(28,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_tarski) ).

thf(29,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_xboole_0) ).

thf(30,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_tarski) ).

thf(31,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ( element @ ( subset_complement @ A @ B ) @ ( powerset @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_subset_1) ).

thf(32,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_zfmisc_1) ).

thf(33,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_xboole_0) ).

thf(34,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_tarski) ).

thf(35,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_zfmisc_1) ).

thf(36,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_xboole_0) ).

thf(37,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_tarski) ).

thf(41,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ( ( subset_complement @ A @ B )
        = ( set_difference @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_subset_1) ).

thf(42,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_difference @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ~ ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_xboole_0) ).

thf(43,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( union @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ? [D: $i] :
              ( ( in @ C @ D )
              & ( in @ D @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_tarski) ).

thf(44,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_intersection2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_xboole_0) ).

thf(45,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

thf(47,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_union2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            | ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_xboole_0) ).

thf(48,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( unordered_pair @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( D = A )
            | ( D = B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_tarski) ).

thf(49,axiom,
    ! [A: $i,B: $i] :
      ( ( ~ ( empty @ A )
       => ( ( element @ B @ A )
        <=> ( in @ B @ A ) ) )
      & ( ( empty @ A )
       => ( ( element @ B @ A )
        <=> ( empty @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_subset_1) ).

thf(50,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( powerset @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( subset @ C @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_zfmisc_1) ).

thf(51,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(52,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( singleton @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( C = A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_tarski) ).

thf(58,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(60,axiom,
    ! [A: $i] :
      ( ( union @ ( powerset @ A ) )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t99_zfmisc_1) ).

thf(71,axiom,
    ! [A: $i] :
      ( ( A != empty_set )
     => ! [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ! [C: $i] :
              ( ( element @ C @ A )
             => ( ~ ( in @ C @ B )
               => ( in @ C @ ( subset_complement @ A @ B ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t50_subset_1) ).

thf(79,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( disjoint @ A @ B )
          & ! [C: $i] :
              ~ ( ( in @ C @ A )
                & ( in @ C @ B ) ) )
      & ~ ( ? [C: $i] :
              ( ( in @ C @ A )
              & ( in @ C @ B ) )
          & ( disjoint @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_0) ).

thf(105,axiom,
    ! [A: $i,B: $i] :
      ( ( element @ B @ ( powerset @ A ) )
     => ! [C: $i] :
          ( ( in @ C @ B )
         => ( in @ C @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l3_subset_1) ).

thf(112,conjecture,
    ! [A: $i,B: $i,C: $i] :
      ( ( element @ C @ ( powerset @ A ) )
     => ~ ( ( in @ B @ ( subset_complement @ A @ C ) )
          & ( in @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t54_subset_1) ).

thf(113,negated_conjecture,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( element @ C @ ( powerset @ A ) )
         => ~ ( ( in @ B @ ( subset_complement @ A @ C ) )
              & ( in @ B @ C ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[112]) ).

thf(114,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( element @ C @ ( powerset @ A ) )
         => ~ ( ( in @ B @ ( subset_complement @ A @ C ) )
              & ( in @ B @ C ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[113]) ).

thf(115,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(116,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(117,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(118,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
         => ? [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
              & ~ ( empty @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(119,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( ( subset_complement @ A @ ( subset_complement @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(120,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[24]) ).

thf(121,plain,
    ( ( ! [A: $i] :
        ? [B: $i] : ( element @ B @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[25]) ).

thf(122,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[26]) ).

thf(123,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[27]) ).

thf(124,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[28]) ).

thf(125,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[29]) ).

thf(126,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[30]) ).

thf(127,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( element @ ( subset_complement @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(128,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[32]) ).

thf(129,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[33]) ).

thf(130,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[34]) ).

thf(131,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[35]) ).

thf(132,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[36]) ).

thf(133,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[37]) ).

thf(134,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( ( subset_complement @ A @ B )
            = ( set_difference @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(135,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)],[42]) ).

thf(136,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)],[43]) ).

thf(137,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)],[44]) ).

thf(138,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[45]) ).

thf(139,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)],[47]) ).

thf(140,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)],[48]) ).

thf(141,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)],[49]) ).

thf(142,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(143,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[51]) ).

thf(144,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(145,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[58]) ).

thf(146,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[60]) ).

thf(147,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)],[71]) ).

thf(148,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)],[79]) ).

thf(149,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ! [C: $i] :
              ( ( in @ C @ B )
             => ( in @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[105]) ).

thf(150,plain,
    ( ( ! [SY67: $i,SY68: $i] :
          ( ( element @ SY68 @ ( powerset @ sK1_A ) )
         => ~ ( ( in @ SY67 @ ( subset_complement @ sK1_A @ SY68 ) )
              & ( in @ SY67 @ SY68 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[114]) ).

thf(151,plain,
    ( ( ! [SY69: $i] :
          ( ( element @ SY69 @ ( powerset @ sK1_A ) )
         => ~ ( ( in @ sK2_SY67 @ ( subset_complement @ sK1_A @ SY69 ) )
              & ( in @ sK2_SY67 @ SY69 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[150]) ).

thf(152,plain,
    ( ( ( element @ sK3_SY69 @ ( powerset @ sK1_A ) )
     => ~ ( ( in @ sK2_SY67 @ ( subset_complement @ sK1_A @ sK3_SY69 ) )
          & ( in @ sK2_SY67 @ sK3_SY69 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[151]) ).

thf(153,plain,
    ( ( element @ sK3_SY69 @ ( powerset @ sK1_A ) )
    = $true ),
    inference(standard_cnf,[status(thm)],[152]) ).

thf(154,plain,
    ( ( ~ ( ( in @ sK2_SY67 @ ( subset_complement @ sK1_A @ sK3_SY69 ) )
          & ( in @ sK2_SY67 @ sK3_SY69 ) ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[152]) ).

thf(155,plain,
    ( ( ( in @ sK2_SY67 @ ( subset_complement @ sK1_A @ sK3_SY69 ) )
      & ( in @ sK2_SY67 @ sK3_SY69 ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[154]) ).

thf(156,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ! [C: $i] :
              ( ( in @ C @ B )
             => ( in @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[149]) ).

thf(157,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(copy,[status(thm)],[148]) ).

thf(158,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)],[147]) ).

thf(159,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[146]) ).

thf(160,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[145]) ).

thf(161,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[144]) ).

thf(162,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[143]) ).

thf(163,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[142]) ).

thf(164,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ~ ( empty @ A )
           => ( ( element @ B @ A )
            <=> ( in @ B @ A ) ) )
          & ( ( empty @ A )
           => ( ( element @ B @ A )
            <=> ( empty @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[141]) ).

thf(165,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( unordered_pair @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( D = A )
                | ( D = B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[140]) ).

thf(166,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(copy,[status(thm)],[139]) ).

thf(167,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[138]) ).

thf(168,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(copy,[status(thm)],[137]) ).

thf(169,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( union @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ? [D: $i] :
                  ( ( in @ C @ D )
                  & ( in @ D @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[136]) ).

thf(170,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(copy,[status(thm)],[135]) ).

thf(171,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( ( subset_complement @ A @ B )
            = ( set_difference @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[134]) ).

thf(172,plain,
    $true = $true,
    inference(copy,[status(thm)],[133]) ).

thf(173,plain,
    $true = $true,
    inference(copy,[status(thm)],[132]) ).

thf(174,plain,
    $true = $true,
    inference(copy,[status(thm)],[131]) ).

thf(175,plain,
    $true = $true,
    inference(copy,[status(thm)],[130]) ).

thf(176,plain,
    $true = $true,
    inference(copy,[status(thm)],[129]) ).

thf(177,plain,
    $true = $true,
    inference(copy,[status(thm)],[128]) ).

thf(178,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( element @ ( subset_complement @ A @ B ) @ ( powerset @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[127]) ).

thf(179,plain,
    $true = $true,
    inference(copy,[status(thm)],[126]) ).

thf(180,plain,
    $true = $true,
    inference(copy,[status(thm)],[125]) ).

thf(181,plain,
    $true = $true,
    inference(copy,[status(thm)],[124]) ).

thf(182,plain,
    $true = $true,
    inference(copy,[status(thm)],[123]) ).

thf(183,plain,
    $true = $true,
    inference(copy,[status(thm)],[122]) ).

thf(184,plain,
    ( ( ! [A: $i] :
        ? [B: $i] : ( element @ B @ A ) )
    = $true ),
    inference(copy,[status(thm)],[121]) ).

thf(185,plain,
    ( ( ! [A: $i] :
          ~ ( empty @ ( powerset @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[120]) ).

thf(186,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
         => ( ( subset_complement @ A @ ( subset_complement @ A @ B ) )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[119]) ).

thf(187,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
         => ? [B: $i] :
              ( ( element @ B @ ( powerset @ A ) )
              & ~ ( empty @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[118]) ).

thf(188,plain,
    ( ( ! [A: $i] :
        ? [B: $i] :
          ( ( element @ B @ ( powerset @ A ) )
          & ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[117]) ).

thf(189,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(190,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[115]) ).

thf(191,plain,
    ( ( element @ sK3_SY69 @ ( powerset @ sK1_A ) )
    = $true ),
    inference(copy,[status(thm)],[153]) ).

thf(192,plain,
    ( ( ( in @ sK2_SY67 @ ( subset_complement @ sK1_A @ sK3_SY69 ) )
      & ( in @ sK2_SY67 @ sK3_SY69 ) )
    = $true ),
    inference(copy,[status(thm)],[155]) ).

thf(193,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( SX1
                 != ( powerset @ SX0 ) )
                | ! [SX2: $i] :
                    ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                          | ( subset @ SX2 @ SX0 ) )
                      | ~ ( ~ ( subset @ SX2 @ SX0 )
                          | ( in @ SX2 @ SX1 ) ) ) )
            | ~ ( ~ ! [SX2: $i] :
                      ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                            | ( subset @ SX2 @ SX0 ) )
                        | ~ ( ~ ( subset @ SX2 @ SX0 )
                            | ( in @ SX2 @ SX1 ) ) )
                | ( SX1
                  = ( powerset @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[163]) ).

thf(194,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
          | ( element @ ( subset_complement @ SX0 @ SX1 ) @ ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[178]) ).

thf(195,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ( SX2
                 != ( set_difference @ SX0 @ SX1 ) )
                | ! [SX3: $i] :
                    ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                          | ~ ( ~ ( in @ SX3 @ SX0 )
                              | ~ ~ ( in @ SX3 @ SX1 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SX3 @ SX0 )
                                | ~ ~ ( in @ SX3 @ SX1 ) )
                          | ( in @ SX3 @ SX2 ) ) ) )
            | ~ ( ~ ! [SX3: $i] :
                      ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                            | ~ ( ~ ( in @ SX3 @ SX0 )
                                | ~ ~ ( in @ SX3 @ SX1 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SX3 @ SX0 )
                                  | ~ ~ ( in @ SX3 @ SX1 ) )
                            | ( in @ SX3 @ SX2 ) ) )
                | ( SX2
                  = ( set_difference @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[170]) ).

thf(196,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( ( SX0 != empty_set ) )
          | ! [SX1: $i] :
              ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
              | ! [SX2: $i] :
                  ( ~ ( element @ SX2 @ SX0 )
                  | ~ ~ ( in @ SX2 @ SX1 )
                  | ( in @ SX2 @ ( subset_complement @ SX0 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[158]) ).

thf(197,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ( SX2
                 != ( unordered_pair @ SX0 @ SX1 ) )
                | ! [SX3: $i] :
                    ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                          | ( SX3 = SX0 )
                          | ( SX3 = SX1 ) )
                      | ~ ( ~ ( ( SX3 = SX0 )
                              | ( SX3 = SX1 ) )
                          | ( in @ SX3 @ SX2 ) ) ) )
            | ~ ( ~ ! [SX3: $i] :
                      ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                            | ( SX3 = SX0 )
                            | ( SX3 = SX1 ) )
                        | ~ ( ~ ( ( SX3 = SX0 )
                                | ( SX3 = SX1 ) )
                            | ( in @ SX3 @ SX2 ) ) )
                | ( SX2
                  = ( unordered_pair @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[165]) ).

thf(198,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX1 )
              | ( in @ SX2 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[156]) ).

thf(199,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ SX0 @ SX1 )
                | ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[167]) ).

thf(200,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( in @ SX0 @ SX1 )
              | ~ ( empty @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[190]) ).

thf(201,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ~ ( empty @ SX0 )
                | ~ ( ~ ( ~ ( element @ SX1 @ SX0 )
                        | ( in @ SX1 @ SX0 ) )
                    | ~ ( ~ ( in @ SX1 @ SX0 )
                        | ( element @ SX1 @ SX0 ) ) ) )
            | ~ ( ~ ( empty @ SX0 )
                | ~ ( ~ ( ~ ( element @ SX1 @ SX0 )
                        | ( empty @ SX1 ) )
                    | ~ ( ~ ( empty @ SX1 )
                        | ( element @ SX1 @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[164]) ).

thf(202,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ( SX2
                 != ( set_union2 @ SX0 @ SX1 ) )
                | ! [SX3: $i] :
                    ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                          | ( in @ SX3 @ SX0 )
                          | ( in @ SX3 @ SX1 ) )
                      | ~ ( ~ ( ( in @ SX3 @ SX0 )
                              | ( in @ SX3 @ SX1 ) )
                          | ( in @ SX3 @ SX2 ) ) ) )
            | ~ ( ~ ! [SX3: $i] :
                      ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                            | ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 ) )
                        | ~ ( ~ ( ( in @ SX3 @ SX0 )
                                | ( in @ SX3 @ SX1 ) )
                            | ( in @ SX3 @ SX2 ) ) )
                | ( SX2
                  = ( set_union2 @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[166]) ).

thf(203,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) )
            | ~ ( ~ ! [SX1: $i] :
                      ~ ( in @ SX1 @ SX0 )
                | ( SX0 = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[162]) ).

thf(204,plain,
    ( ( ! [SX0: $i] :
          ~ ! [SX1: $i] :
              ~ ( element @ SX1 @ SX0 ) )
    = $true ),
    inference(unfold_def,[status(thm)],[184]) ).

thf(205,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( SX1
                 != ( union @ SX0 ) )
                | ! [SX2: $i] :
                    ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                          | ~ ! [SX3: $i] :
                                ~ ~ ( ~ ( in @ SX2 @ SX3 )
                                    | ~ ( in @ SX3 @ SX0 ) ) )
                      | ~ ( ~ ~ ! [SX3: $i] :
                                  ~ ~ ( ~ ( in @ SX2 @ SX3 )
                                      | ~ ( in @ SX3 @ SX0 ) )
                          | ( in @ SX2 @ SX1 ) ) ) )
            | ~ ( ~ ! [SX2: $i] :
                      ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                            | ~ ! [SX3: $i] :
                                  ~ ~ ( ~ ( in @ SX2 @ SX3 )
                                      | ~ ( in @ SX3 @ SX0 ) ) )
                        | ~ ( ~ ~ ! [SX3: $i] :
                                    ~ ~ ( ~ ( in @ SX2 @ SX3 )
                                        | ~ ( in @ SX3 @ SX0 ) )
                            | ( in @ SX2 @ SX1 ) ) )
                | ( SX1
                  = ( union @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[169]) ).

thf(206,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
          | ( ( subset_complement @ SX0 @ SX1 )
            = ( set_difference @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[171]) ).

thf(207,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SX0 @ SX1 )
                    | ~ ! [SX2: $i] :
                          ~ ~ ( ~ ( in @ SX2 @ SX0 )
                              | ~ ( in @ SX2 @ SX1 ) ) )
            | ~ ~ ~ ( ~ ~ ! [SX2: $i] :
                            ~ ~ ( ~ ( in @ SX2 @ SX0 )
                                | ~ ( in @ SX2 @ SX1 ) )
                    | ~ ( disjoint @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[157]) ).

thf(208,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( SX1
                 != ( singleton @ SX0 ) )
                | ! [SX2: $i] :
                    ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                          | ( SX2 = SX0 ) )
                      | ~ ( ( SX2 != SX0 )
                          | ( in @ SX2 @ SX1 ) ) ) )
            | ~ ( ~ ! [SX2: $i] :
                      ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                            | ( SX2 = SX0 ) )
                        | ~ ( ( SX2 != SX0 )
                            | ( in @ SX2 @ SX1 ) ) )
                | ( SX1
                  = ( singleton @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[161]) ).

thf(209,plain,
    ( ( ! [SX0: $i] :
          ( ~ ~ ( empty @ SX0 )
          | ~ ! [SX1: $i] :
                ~ ~ ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
                    | ~ ~ ( empty @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[187]) ).

thf(210,plain,
    ( ( ~ ( ~ ( in @ sK2_SY67 @ ( subset_complement @ sK1_A @ sK3_SY69 ) )
          | ~ ( in @ sK2_SY67 @ sK3_SY69 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[192]) ).

thf(211,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
          | ( ( subset_complement @ SX0 @ ( subset_complement @ SX0 @ SX1 ) )
            = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[186]) ).

thf(212,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[160]) ).

thf(213,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ( SX2
                 != ( set_intersection2 @ SX0 @ SX1 ) )
                | ! [SX3: $i] :
                    ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                          | ~ ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX3 @ SX1 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SX3 @ SX0 )
                                | ~ ( in @ SX3 @ SX1 ) )
                          | ( in @ SX3 @ SX2 ) ) ) )
            | ~ ( ~ ! [SX3: $i] :
                      ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                            | ~ ( ~ ( in @ SX3 @ SX0 )
                                | ~ ( in @ SX3 @ SX1 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SX3 @ SX0 )
                                  | ~ ( in @ SX3 @ SX1 ) )
                            | ( in @ SX3 @ SX2 ) ) )
                | ( SX2
                  = ( set_intersection2 @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[168]) ).

thf(214,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ! [SX2: $i] :
                ~ ( ~ ( ~ ( in @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) )
                  | ~ ( ~ ( in @ SX2 @ SX1 )
                      | ( in @ SX2 @ SX0 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[189]) ).

thf(215,plain,
    ( ( ! [SX0: $i] :
          ~ ! [SX1: $i] :
              ~ ~ ( ~ ( element @ SX1 @ ( powerset @ SX0 ) )
                  | ~ ( empty @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[188]) ).

thf(216,plain,
    ! [SV1: $i] :
      ( ( ( union @ ( powerset @ SV1 ) )
        = SV1 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[159]) ).

thf(217,plain,
    ! [SV2: $i] :
      ( ( ~ ( empty @ ( powerset @ SV2 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[185]) ).

thf(218,plain,
    ! [SV3: $i] :
      ( ( ! [SY70: $i] :
            ~ ( ~ ( ( SY70
                   != ( powerset @ SV3 ) )
                  | ! [SY71: $i] :
                      ~ ( ~ ( ~ ( in @ SY71 @ SY70 )
                            | ( subset @ SY71 @ SV3 ) )
                        | ~ ( ~ ( subset @ SY71 @ SV3 )
                            | ( in @ SY71 @ SY70 ) ) ) )
              | ~ ( ~ ! [SY72: $i] :
                        ~ ( ~ ( ~ ( in @ SY72 @ SY70 )
                              | ( subset @ SY72 @ SV3 ) )
                          | ~ ( ~ ( subset @ SY72 @ SV3 )
                              | ( in @ SY72 @ SY70 ) ) )
                  | ( SY70
                    = ( powerset @ SV3 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[193]) ).

thf(219,plain,
    ! [SV4: $i] :
      ( ( ! [SY73: $i] :
            ( ~ ( element @ SY73 @ ( powerset @ SV4 ) )
            | ( element @ ( subset_complement @ SV4 @ SY73 ) @ ( powerset @ SV4 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[194]) ).

thf(220,plain,
    ! [SV5: $i] :
      ( ( ! [SY74: $i,SY75: $i] :
            ~ ( ~ ( ( SY75
                   != ( set_difference @ SV5 @ SY74 ) )
                  | ! [SY76: $i] :
                      ~ ( ~ ( ~ ( in @ SY76 @ SY75 )
                            | ~ ( ~ ( in @ SY76 @ SV5 )
                                | ~ ~ ( in @ SY76 @ SY74 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY76 @ SV5 )
                                  | ~ ~ ( in @ SY76 @ SY74 ) )
                            | ( in @ SY76 @ SY75 ) ) ) )
              | ~ ( ~ ! [SY77: $i] :
                        ~ ( ~ ( ~ ( in @ SY77 @ SY75 )
                              | ~ ( ~ ( in @ SY77 @ SV5 )
                                  | ~ ~ ( in @ SY77 @ SY74 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY77 @ SV5 )
                                    | ~ ~ ( in @ SY77 @ SY74 ) )
                              | ( in @ SY77 @ SY75 ) ) )
                  | ( SY75
                    = ( set_difference @ SV5 @ SY74 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[195]) ).

thf(221,plain,
    ! [SV6: $i] :
      ( ( ~ ( ( SV6 != empty_set ) )
        | ! [SY78: $i] :
            ( ~ ( element @ SY78 @ ( powerset @ SV6 ) )
            | ! [SY79: $i] :
                ( ~ ( element @ SY79 @ SV6 )
                | ~ ~ ( in @ SY79 @ SY78 )
                | ( in @ SY79 @ ( subset_complement @ SV6 @ SY78 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[196]) ).

thf(222,plain,
    ! [SV7: $i] :
      ( ( ! [SY80: $i,SY81: $i] :
            ~ ( ~ ( ( SY81
                   != ( unordered_pair @ SV7 @ SY80 ) )
                  | ! [SY82: $i] :
                      ~ ( ~ ( ~ ( in @ SY82 @ SY81 )
                            | ( SY82 = SV7 )
                            | ( SY82 = SY80 ) )
                        | ~ ( ~ ( ( SY82 = SV7 )
                                | ( SY82 = SY80 ) )
                            | ( in @ SY82 @ SY81 ) ) ) )
              | ~ ( ~ ! [SY83: $i] :
                        ~ ( ~ ( ~ ( in @ SY83 @ SY81 )
                              | ( SY83 = SV7 )
                              | ( SY83 = SY80 ) )
                          | ~ ( ~ ( ( SY83 = SV7 )
                                  | ( SY83 = SY80 ) )
                              | ( in @ SY83 @ SY81 ) ) )
                  | ( SY81
                    = ( unordered_pair @ SV7 @ SY80 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[197]) ).

thf(223,plain,
    ! [SV8: $i] :
      ( ( ! [SY84: $i] :
            ( ~ ( element @ SY84 @ ( powerset @ SV8 ) )
            | ! [SY85: $i] :
                ( ~ ( in @ SY85 @ SY84 )
                | ( in @ SY85 @ SV8 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[198]) ).

thf(224,plain,
    ! [SV9: $i] :
      ( ( ! [SY86: $i] :
            ~ ( ~ ( ~ ( subset @ SV9 @ SY86 )
                  | ! [SY87: $i] :
                      ( ~ ( in @ SY87 @ SV9 )
                      | ( in @ SY87 @ SY86 ) ) )
              | ~ ( ~ ! [SY88: $i] :
                        ( ~ ( in @ SY88 @ SV9 )
                        | ( in @ SY88 @ SY86 ) )
                  | ( subset @ SV9 @ SY86 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[199]) ).

thf(225,plain,
    ! [SV10: $i] :
      ( ( ! [SY89: $i] :
            ~ ~ ( ~ ( in @ SV10 @ SY89 )
                | ~ ( empty @ SY89 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[200]) ).

thf(226,plain,
    ! [SV11: $i] :
      ( ( ! [SY90: $i] :
            ~ ( ~ ( ~ ~ ( empty @ SV11 )
                  | ~ ( ~ ( ~ ( element @ SY90 @ SV11 )
                          | ( in @ SY90 @ SV11 ) )
                      | ~ ( ~ ( in @ SY90 @ SV11 )
                          | ( element @ SY90 @ SV11 ) ) ) )
              | ~ ( ~ ( empty @ SV11 )
                  | ~ ( ~ ( ~ ( element @ SY90 @ SV11 )
                          | ( empty @ SY90 ) )
                      | ~ ( ~ ( empty @ SY90 )
                          | ( element @ SY90 @ SV11 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[201]) ).

thf(227,plain,
    ! [SV12: $i] :
      ( ( ! [SY91: $i,SY92: $i] :
            ~ ( ~ ( ( SY92
                   != ( set_union2 @ SV12 @ SY91 ) )
                  | ! [SY93: $i] :
                      ~ ( ~ ( ~ ( in @ SY93 @ SY92 )
                            | ( in @ SY93 @ SV12 )
                            | ( in @ SY93 @ SY91 ) )
                        | ~ ( ~ ( ( in @ SY93 @ SV12 )
                                | ( in @ SY93 @ SY91 ) )
                            | ( in @ SY93 @ SY92 ) ) ) )
              | ~ ( ~ ! [SY94: $i] :
                        ~ ( ~ ( ~ ( in @ SY94 @ SY92 )
                              | ( in @ SY94 @ SV12 )
                              | ( in @ SY94 @ SY91 ) )
                          | ~ ( ~ ( ( in @ SY94 @ SV12 )
                                  | ( in @ SY94 @ SY91 ) )
                              | ( in @ SY94 @ SY92 ) ) )
                  | ( SY92
                    = ( set_union2 @ SV12 @ SY91 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[202]) ).

thf(228,plain,
    ! [SV13: $i] :
      ( ( ~ ( ~ ( ( SV13 != empty_set )
                | ! [SY95: $i] :
                    ~ ( in @ SY95 @ SV13 ) )
            | ~ ( ~ ! [SY96: $i] :
                      ~ ( in @ SY96 @ SV13 )
                | ( SV13 = empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[203]) ).

thf(229,plain,
    ! [SV14: $i] :
      ( ( ~ ! [SY97: $i] :
              ~ ( element @ SY97 @ SV14 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[204]) ).

thf(230,plain,
    ! [SV15: $i] :
      ( ( ! [SY98: $i] :
            ~ ( ~ ( ( SY98
                   != ( union @ SV15 ) )
                  | ! [SY99: $i] :
                      ~ ( ~ ( ~ ( in @ SY99 @ SY98 )
                            | ~ ! [SY100: $i] :
                                  ~ ~ ( ~ ( in @ SY99 @ SY100 )
                                      | ~ ( in @ SY100 @ SV15 ) ) )
                        | ~ ( ~ ~ ! [SY101: $i] :
                                    ~ ~ ( ~ ( in @ SY99 @ SY101 )
                                        | ~ ( in @ SY101 @ SV15 ) )
                            | ( in @ SY99 @ SY98 ) ) ) )
              | ~ ( ~ ! [SY102: $i] :
                        ~ ( ~ ( ~ ( in @ SY102 @ SY98 )
                              | ~ ! [SY103: $i] :
                                    ~ ~ ( ~ ( in @ SY102 @ SY103 )
                                        | ~ ( in @ SY103 @ SV15 ) ) )
                          | ~ ( ~ ~ ! [SY104: $i] :
                                      ~ ~ ( ~ ( in @ SY102 @ SY104 )
                                          | ~ ( in @ SY104 @ SV15 ) )
                              | ( in @ SY102 @ SY98 ) ) )
                  | ( SY98
                    = ( union @ SV15 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[205]) ).

thf(231,plain,
    ! [SV16: $i] :
      ( ( ! [SY105: $i] :
            ( ~ ( element @ SY105 @ ( powerset @ SV16 ) )
            | ( ( subset_complement @ SV16 @ SY105 )
              = ( set_difference @ SV16 @ SY105 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[206]) ).

thf(232,plain,
    ! [SV17: $i] :
      ( ( ! [SY106: $i] :
            ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV17 @ SY106 )
                      | ~ ! [SY107: $i] :
                            ~ ~ ( ~ ( in @ SY107 @ SV17 )
                                | ~ ( in @ SY107 @ SY106 ) ) )
              | ~ ~ ~ ( ~ ~ ! [SY108: $i] :
                              ~ ~ ( ~ ( in @ SY108 @ SV17 )
                                  | ~ ( in @ SY108 @ SY106 ) )
                      | ~ ( disjoint @ SV17 @ SY106 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[207]) ).

thf(233,plain,
    ! [SV18: $i] :
      ( ( ! [SY109: $i] :
            ~ ( ~ ( ( SY109
                   != ( singleton @ SV18 ) )
                  | ! [SY110: $i] :
                      ~ ( ~ ( ~ ( in @ SY110 @ SY109 )
                            | ( SY110 = SV18 ) )
                        | ~ ( ( SY110 != SV18 )
                            | ( in @ SY110 @ SY109 ) ) ) )
              | ~ ( ~ ! [SY111: $i] :
                        ~ ( ~ ( ~ ( in @ SY111 @ SY109 )
                              | ( SY111 = SV18 ) )
                          | ~ ( ( SY111 != SV18 )
                              | ( in @ SY111 @ SY109 ) ) )
                  | ( SY109
                    = ( singleton @ SV18 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[208]) ).

thf(234,plain,
    ! [SV19: $i] :
      ( ( ~ ~ ( empty @ SV19 )
        | ~ ! [SY112: $i] :
              ~ ~ ( ~ ( element @ SY112 @ ( powerset @ SV19 ) )
                  | ~ ~ ( empty @ SY112 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[209]) ).

thf(235,plain,
    ( ( ~ ( in @ sK2_SY67 @ ( subset_complement @ sK1_A @ sK3_SY69 ) )
      | ~ ( in @ sK2_SY67 @ sK3_SY69 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[210]) ).

thf(236,plain,
    ! [SV20: $i] :
      ( ( ! [SY113: $i] :
            ( ~ ( element @ SY113 @ ( powerset @ SV20 ) )
            | ( ( subset_complement @ SV20 @ ( subset_complement @ SV20 @ SY113 ) )
              = SY113 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[211]) ).

thf(237,plain,
    ! [SV21: $i] :
      ( ( ! [SY114: $i] :
            ( ~ ( in @ SV21 @ SY114 )
            | ~ ( in @ SY114 @ SV21 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[212]) ).

thf(238,plain,
    ! [SV22: $i] :
      ( ( ! [SY115: $i,SY116: $i] :
            ~ ( ~ ( ( SY116
                   != ( set_intersection2 @ SV22 @ SY115 ) )
                  | ! [SY117: $i] :
                      ~ ( ~ ( ~ ( in @ SY117 @ SY116 )
                            | ~ ( ~ ( in @ SY117 @ SV22 )
                                | ~ ( in @ SY117 @ SY115 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY117 @ SV22 )
                                  | ~ ( in @ SY117 @ SY115 ) )
                            | ( in @ SY117 @ SY116 ) ) ) )
              | ~ ( ~ ! [SY118: $i] :
                        ~ ( ~ ( ~ ( in @ SY118 @ SY116 )
                              | ~ ( ~ ( in @ SY118 @ SV22 )
                                  | ~ ( in @ SY118 @ SY115 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY118 @ SV22 )
                                    | ~ ( in @ SY118 @ SY115 ) )
                              | ( in @ SY118 @ SY116 ) ) )
                  | ( SY116
                    = ( set_intersection2 @ SV22 @ SY115 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[213]) ).

thf(239,plain,
    ! [SV23: $i] :
      ( ( ! [SY119: $i] :
            ( ~ ! [SY120: $i] :
                  ~ ( ~ ( ~ ( in @ SY120 @ SV23 )
                        | ( in @ SY120 @ SY119 ) )
                    | ~ ( ~ ( in @ SY120 @ SY119 )
                        | ( in @ SY120 @ SV23 ) ) )
            | ( SV23 = SY119 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[214]) ).

thf(240,plain,
    ! [SV24: $i] :
      ( ( ~ ! [SY121: $i] :
              ~ ~ ( ~ ( element @ SY121 @ ( powerset @ SV24 ) )
                  | ~ ( empty @ SY121 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[215]) ).

thf(241,plain,
    ! [SV2: $i] :
      ( ( empty @ ( powerset @ SV2 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[217]) ).

thf(242,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ~ ( ~ ( ( SV25
                 != ( powerset @ SV3 ) )
                | ! [SY122: $i] :
                    ~ ( ~ ( ~ ( in @ SY122 @ SV25 )
                          | ( subset @ SY122 @ SV3 ) )
                      | ~ ( ~ ( subset @ SY122 @ SV3 )
                          | ( in @ SY122 @ SV25 ) ) ) )
            | ~ ( ~ ! [SY123: $i] :
                      ~ ( ~ ( ~ ( in @ SY123 @ SV25 )
                            | ( subset @ SY123 @ SV3 ) )
                        | ~ ( ~ ( subset @ SY123 @ SV3 )
                            | ( in @ SY123 @ SV25 ) ) )
                | ( SV25
                  = ( powerset @ SV3 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[218]) ).

thf(243,plain,
    ! [SV4: $i,SV26: $i] :
      ( ( ~ ( element @ SV26 @ ( powerset @ SV4 ) )
        | ( element @ ( subset_complement @ SV4 @ SV26 ) @ ( powerset @ SV4 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[219]) ).

thf(244,plain,
    ! [SV27: $i,SV5: $i] :
      ( ( ! [SY124: $i] :
            ~ ( ~ ( ( SY124
                   != ( set_difference @ SV5 @ SV27 ) )
                  | ! [SY125: $i] :
                      ~ ( ~ ( ~ ( in @ SY125 @ SY124 )
                            | ~ ( ~ ( in @ SY125 @ SV5 )
                                | ~ ~ ( in @ SY125 @ SV27 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY125 @ SV5 )
                                  | ~ ~ ( in @ SY125 @ SV27 ) )
                            | ( in @ SY125 @ SY124 ) ) ) )
              | ~ ( ~ ! [SY126: $i] :
                        ~ ( ~ ( ~ ( in @ SY126 @ SY124 )
                              | ~ ( ~ ( in @ SY126 @ SV5 )
                                  | ~ ~ ( in @ SY126 @ SV27 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY126 @ SV5 )
                                    | ~ ~ ( in @ SY126 @ SV27 ) )
                              | ( in @ SY126 @ SY124 ) ) )
                  | ( SY124
                    = ( set_difference @ SV5 @ SV27 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[220]) ).

thf(245,plain,
    ! [SV6: $i] :
      ( ( ( ~ ( ( SV6 != empty_set ) ) )
        = $true )
      | ( ( ! [SY78: $i] :
              ( ~ ( element @ SY78 @ ( powerset @ SV6 ) )
              | ! [SY79: $i] :
                  ( ~ ( element @ SY79 @ SV6 )
                  | ~ ~ ( in @ SY79 @ SY78 )
                  | ( in @ SY79 @ ( subset_complement @ SV6 @ SY78 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[221]) ).

thf(246,plain,
    ! [SV28: $i,SV7: $i] :
      ( ( ! [SY127: $i] :
            ~ ( ~ ( ( SY127
                   != ( unordered_pair @ SV7 @ SV28 ) )
                  | ! [SY128: $i] :
                      ~ ( ~ ( ~ ( in @ SY128 @ SY127 )
                            | ( SY128 = SV7 )
                            | ( SY128 = SV28 ) )
                        | ~ ( ~ ( ( SY128 = SV7 )
                                | ( SY128 = SV28 ) )
                            | ( in @ SY128 @ SY127 ) ) ) )
              | ~ ( ~ ! [SY129: $i] :
                        ~ ( ~ ( ~ ( in @ SY129 @ SY127 )
                              | ( SY129 = SV7 )
                              | ( SY129 = SV28 ) )
                          | ~ ( ~ ( ( SY129 = SV7 )
                                  | ( SY129 = SV28 ) )
                              | ( in @ SY129 @ SY127 ) ) )
                  | ( SY127
                    = ( unordered_pair @ SV7 @ SV28 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[222]) ).

thf(247,plain,
    ! [SV8: $i,SV29: $i] :
      ( ( ~ ( element @ SV29 @ ( powerset @ SV8 ) )
        | ! [SY130: $i] :
            ( ~ ( in @ SY130 @ SV29 )
            | ( in @ SY130 @ SV8 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[223]) ).

thf(248,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV9 @ SV30 )
                | ! [SY131: $i] :
                    ( ~ ( in @ SY131 @ SV9 )
                    | ( in @ SY131 @ SV30 ) ) )
            | ~ ( ~ ! [SY132: $i] :
                      ( ~ ( in @ SY132 @ SV9 )
                      | ( in @ SY132 @ SV30 ) )
                | ( subset @ SV9 @ SV30 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[224]) ).

thf(249,plain,
    ! [SV31: $i,SV10: $i] :
      ( ( ~ ~ ( ~ ( in @ SV10 @ SV31 )
              | ~ ( empty @ SV31 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[225]) ).

thf(250,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ~ ( ~ ( ~ ~ ( empty @ SV11 )
                | ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                        | ( in @ SV32 @ SV11 ) )
                    | ~ ( ~ ( in @ SV32 @ SV11 )
                        | ( element @ SV32 @ SV11 ) ) ) )
            | ~ ( ~ ( empty @ SV11 )
                | ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                        | ( empty @ SV32 ) )
                    | ~ ( ~ ( empty @ SV32 )
                        | ( element @ SV32 @ SV11 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[226]) ).

thf(251,plain,
    ! [SV33: $i,SV12: $i] :
      ( ( ! [SY133: $i] :
            ~ ( ~ ( ( SY133
                   != ( set_union2 @ SV12 @ SV33 ) )
                  | ! [SY134: $i] :
                      ~ ( ~ ( ~ ( in @ SY134 @ SY133 )
                            | ( in @ SY134 @ SV12 )
                            | ( in @ SY134 @ SV33 ) )
                        | ~ ( ~ ( ( in @ SY134 @ SV12 )
                                | ( in @ SY134 @ SV33 ) )
                            | ( in @ SY134 @ SY133 ) ) ) )
              | ~ ( ~ ! [SY135: $i] :
                        ~ ( ~ ( ~ ( in @ SY135 @ SY133 )
                              | ( in @ SY135 @ SV12 )
                              | ( in @ SY135 @ SV33 ) )
                          | ~ ( ~ ( ( in @ SY135 @ SV12 )
                                  | ( in @ SY135 @ SV33 ) )
                              | ( in @ SY135 @ SY133 ) ) )
                  | ( SY133
                    = ( set_union2 @ SV12 @ SV33 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[227]) ).

thf(252,plain,
    ! [SV13: $i] :
      ( ( ~ ( ( SV13 != empty_set )
            | ! [SY95: $i] :
                ~ ( in @ SY95 @ SV13 ) )
        | ~ ( ~ ! [SY96: $i] :
                  ~ ( in @ SY96 @ SV13 )
            | ( SV13 = empty_set ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[228]) ).

thf(253,plain,
    ! [SV14: $i] :
      ( ( ! [SY97: $i] :
            ~ ( element @ SY97 @ SV14 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[229]) ).

thf(254,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ~ ( ~ ( ( SV34
                 != ( union @ SV15 ) )
                | ! [SY136: $i] :
                    ~ ( ~ ( ~ ( in @ SY136 @ SV34 )
                          | ~ ! [SY100: $i] :
                                ~ ~ ( ~ ( in @ SY136 @ SY100 )
                                    | ~ ( in @ SY100 @ SV15 ) ) )
                      | ~ ( ~ ~ ! [SY101: $i] :
                                  ~ ~ ( ~ ( in @ SY136 @ SY101 )
                                      | ~ ( in @ SY101 @ SV15 ) )
                          | ( in @ SY136 @ SV34 ) ) ) )
            | ~ ( ~ ! [SY139: $i] :
                      ~ ( ~ ( ~ ( in @ SY139 @ SV34 )
                            | ~ ! [SY103: $i] :
                                  ~ ~ ( ~ ( in @ SY139 @ SY103 )
                                      | ~ ( in @ SY103 @ SV15 ) ) )
                        | ~ ( ~ ~ ! [SY104: $i] :
                                    ~ ~ ( ~ ( in @ SY139 @ SY104 )
                                        | ~ ( in @ SY104 @ SV15 ) )
                            | ( in @ SY139 @ SV34 ) ) )
                | ( SV34
                  = ( union @ SV15 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[230]) ).

thf(255,plain,
    ! [SV16: $i,SV35: $i] :
      ( ( ~ ( element @ SV35 @ ( powerset @ SV16 ) )
        | ( ( subset_complement @ SV16 @ SV35 )
          = ( set_difference @ SV16 @ SV35 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[231]) ).

thf(256,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV17 @ SV36 )
                    | ~ ! [SY142: $i] :
                          ~ ~ ( ~ ( in @ SY142 @ SV17 )
                              | ~ ( in @ SY142 @ SV36 ) ) )
            | ~ ~ ~ ( ~ ~ ! [SY143: $i] :
                            ~ ~ ( ~ ( in @ SY143 @ SV17 )
                                | ~ ( in @ SY143 @ SV36 ) )
                    | ~ ( disjoint @ SV17 @ SV36 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[232]) ).

thf(257,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ~ ( ~ ( ( SV37
                 != ( singleton @ SV18 ) )
                | ! [SY144: $i] :
                    ~ ( ~ ( ~ ( in @ SY144 @ SV37 )
                          | ( SY144 = SV18 ) )
                      | ~ ( ( SY144 != SV18 )
                          | ( in @ SY144 @ SV37 ) ) ) )
            | ~ ( ~ ! [SY145: $i] :
                      ~ ( ~ ( ~ ( in @ SY145 @ SV37 )
                            | ( SY145 = SV18 ) )
                        | ~ ( ( SY145 != SV18 )
                            | ( in @ SY145 @ SV37 ) ) )
                | ( SV37
                  = ( singleton @ SV18 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[233]) ).

thf(258,plain,
    ! [SV19: $i] :
      ( ( ( ~ ~ ( empty @ SV19 ) )
        = $true )
      | ( ( ~ ! [SY112: $i] :
                ~ ~ ( ~ ( element @ SY112 @ ( powerset @ SV19 ) )
                    | ~ ~ ( empty @ SY112 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[234]) ).

thf(259,plain,
    ( ( ~ ( in @ sK2_SY67 @ ( subset_complement @ sK1_A @ sK3_SY69 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[235]) ).

thf(260,plain,
    ( ( ~ ( in @ sK2_SY67 @ sK3_SY69 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[235]) ).

thf(261,plain,
    ! [SV20: $i,SV38: $i] :
      ( ( ~ ( element @ SV38 @ ( powerset @ SV20 ) )
        | ( ( subset_complement @ SV20 @ ( subset_complement @ SV20 @ SV38 ) )
          = SV38 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[236]) ).

thf(262,plain,
    ! [SV39: $i,SV21: $i] :
      ( ( ~ ( in @ SV21 @ SV39 )
        | ~ ( in @ SV39 @ SV21 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[237]) ).

thf(263,plain,
    ! [SV40: $i,SV22: $i] :
      ( ( ! [SY146: $i] :
            ~ ( ~ ( ( SY146
                   != ( set_intersection2 @ SV22 @ SV40 ) )
                  | ! [SY147: $i] :
                      ~ ( ~ ( ~ ( in @ SY147 @ SY146 )
                            | ~ ( ~ ( in @ SY147 @ SV22 )
                                | ~ ( in @ SY147 @ SV40 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY147 @ SV22 )
                                  | ~ ( in @ SY147 @ SV40 ) )
                            | ( in @ SY147 @ SY146 ) ) ) )
              | ~ ( ~ ! [SY148: $i] :
                        ~ ( ~ ( ~ ( in @ SY148 @ SY146 )
                              | ~ ( ~ ( in @ SY148 @ SV22 )
                                  | ~ ( in @ SY148 @ SV40 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY148 @ SV22 )
                                    | ~ ( in @ SY148 @ SV40 ) )
                              | ( in @ SY148 @ SY146 ) ) )
                  | ( SY146
                    = ( set_intersection2 @ SV22 @ SV40 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[238]) ).

thf(264,plain,
    ! [SV41: $i,SV23: $i] :
      ( ( ~ ! [SY149: $i] :
              ~ ( ~ ( ~ ( in @ SY149 @ SV23 )
                    | ( in @ SY149 @ SV41 ) )
                | ~ ( ~ ( in @ SY149 @ SV41 )
                    | ( in @ SY149 @ SV23 ) ) )
        | ( SV23 = SV41 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[239]) ).

thf(265,plain,
    ! [SV24: $i] :
      ( ( ! [SY121: $i] :
            ~ ~ ( ~ ( element @ SY121 @ ( powerset @ SV24 ) )
                | ~ ( empty @ SY121 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[240]) ).

thf(266,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ~ ( ( SV25
             != ( powerset @ SV3 ) )
            | ! [SY122: $i] :
                ~ ( ~ ( ~ ( in @ SY122 @ SV25 )
                      | ( subset @ SY122 @ SV3 ) )
                  | ~ ( ~ ( subset @ SY122 @ SV3 )
                      | ( in @ SY122 @ SV25 ) ) ) )
        | ~ ( ~ ! [SY123: $i] :
                  ~ ( ~ ( ~ ( in @ SY123 @ SV25 )
                        | ( subset @ SY123 @ SV3 ) )
                    | ~ ( ~ ( subset @ SY123 @ SV3 )
                        | ( in @ SY123 @ SV25 ) ) )
            | ( SV25
              = ( powerset @ SV3 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[242]) ).

thf(267,plain,
    ! [SV4: $i,SV26: $i] :
      ( ( ( ~ ( element @ SV26 @ ( powerset @ SV4 ) ) )
        = $true )
      | ( ( element @ ( subset_complement @ SV4 @ SV26 ) @ ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[243]) ).

thf(268,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ~ ( ~ ( ( SV42
                 != ( set_difference @ SV5 @ SV27 ) )
                | ! [SY150: $i] :
                    ~ ( ~ ( ~ ( in @ SY150 @ SV42 )
                          | ~ ( ~ ( in @ SY150 @ SV5 )
                              | ~ ~ ( in @ SY150 @ SV27 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY150 @ SV5 )
                                | ~ ~ ( in @ SY150 @ SV27 ) )
                          | ( in @ SY150 @ SV42 ) ) ) )
            | ~ ( ~ ! [SY151: $i] :
                      ~ ( ~ ( ~ ( in @ SY151 @ SV42 )
                            | ~ ( ~ ( in @ SY151 @ SV5 )
                                | ~ ~ ( in @ SY151 @ SV27 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY151 @ SV5 )
                                  | ~ ~ ( in @ SY151 @ SV27 ) )
                            | ( in @ SY151 @ SV42 ) ) )
                | ( SV42
                  = ( set_difference @ SV5 @ SV27 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[244]) ).

thf(269,plain,
    ! [SV6: $i] :
      ( ( ( SV6 != empty_set )
        = $false )
      | ( ( ! [SY78: $i] :
              ( ~ ( element @ SY78 @ ( powerset @ SV6 ) )
              | ! [SY79: $i] :
                  ( ~ ( element @ SY79 @ SV6 )
                  | ~ ~ ( in @ SY79 @ SY78 )
                  | ( in @ SY79 @ ( subset_complement @ SV6 @ SY78 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[245]) ).

thf(270,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ~ ( ~ ( ( SV43
                 != ( unordered_pair @ SV7 @ SV28 ) )
                | ! [SY152: $i] :
                    ~ ( ~ ( ~ ( in @ SY152 @ SV43 )
                          | ( SY152 = SV7 )
                          | ( SY152 = SV28 ) )
                      | ~ ( ~ ( ( SY152 = SV7 )
                              | ( SY152 = SV28 ) )
                          | ( in @ SY152 @ SV43 ) ) ) )
            | ~ ( ~ ! [SY153: $i] :
                      ~ ( ~ ( ~ ( in @ SY153 @ SV43 )
                            | ( SY153 = SV7 )
                            | ( SY153 = SV28 ) )
                        | ~ ( ~ ( ( SY153 = SV7 )
                                | ( SY153 = SV28 ) )
                            | ( in @ SY153 @ SV43 ) ) )
                | ( SV43
                  = ( unordered_pair @ SV7 @ SV28 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[246]) ).

thf(271,plain,
    ! [SV8: $i,SV29: $i] :
      ( ( ( ~ ( element @ SV29 @ ( powerset @ SV8 ) ) )
        = $true )
      | ( ( ! [SY130: $i] :
              ( ~ ( in @ SY130 @ SV29 )
              | ( in @ SY130 @ SV8 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[247]) ).

thf(272,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ~ ( ~ ( subset @ SV9 @ SV30 )
            | ! [SY131: $i] :
                ( ~ ( in @ SY131 @ SV9 )
                | ( in @ SY131 @ SV30 ) ) )
        | ~ ( ~ ! [SY132: $i] :
                  ( ~ ( in @ SY132 @ SV9 )
                  | ( in @ SY132 @ SV30 ) )
            | ( subset @ SV9 @ SV30 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[248]) ).

thf(273,plain,
    ! [SV31: $i,SV10: $i] :
      ( ( ~ ( ~ ( in @ SV10 @ SV31 )
            | ~ ( empty @ SV31 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[249]) ).

thf(274,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ~ ( ~ ~ ( empty @ SV11 )
            | ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                    | ( in @ SV32 @ SV11 ) )
                | ~ ( ~ ( in @ SV32 @ SV11 )
                    | ( element @ SV32 @ SV11 ) ) ) )
        | ~ ( ~ ( empty @ SV11 )
            | ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                    | ( empty @ SV32 ) )
                | ~ ( ~ ( empty @ SV32 )
                    | ( element @ SV32 @ SV11 ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[250]) ).

thf(275,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ~ ( ~ ( ( SV44
                 != ( set_union2 @ SV12 @ SV33 ) )
                | ! [SY154: $i] :
                    ~ ( ~ ( ~ ( in @ SY154 @ SV44 )
                          | ( in @ SY154 @ SV12 )
                          | ( in @ SY154 @ SV33 ) )
                      | ~ ( ~ ( ( in @ SY154 @ SV12 )
                              | ( in @ SY154 @ SV33 ) )
                          | ( in @ SY154 @ SV44 ) ) ) )
            | ~ ( ~ ! [SY155: $i] :
                      ~ ( ~ ( ~ ( in @ SY155 @ SV44 )
                            | ( in @ SY155 @ SV12 )
                            | ( in @ SY155 @ SV33 ) )
                        | ~ ( ~ ( ( in @ SY155 @ SV12 )
                                | ( in @ SY155 @ SV33 ) )
                            | ( in @ SY155 @ SV44 ) ) )
                | ( SV44
                  = ( set_union2 @ SV12 @ SV33 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[251]) ).

thf(276,plain,
    ! [SV13: $i] :
      ( ( ~ ( ( SV13 != empty_set )
            | ! [SY95: $i] :
                ~ ( in @ SY95 @ SV13 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[252]) ).

thf(277,plain,
    ! [SV13: $i] :
      ( ( ~ ( ~ ! [SY96: $i] :
                  ~ ( in @ SY96 @ SV13 )
            | ( SV13 = empty_set ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[252]) ).

thf(278,plain,
    ! [SV14: $i] :
      ( ( ~ ( element @ ( sK4_SY97 @ SV14 ) @ SV14 ) )
      = $false ),
    inference(extcnf_forall_neg,[status(esa)],[253]) ).

thf(279,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ~ ( ( SV34
             != ( union @ SV15 ) )
            | ! [SY136: $i] :
                ~ ( ~ ( ~ ( in @ SY136 @ SV34 )
                      | ~ ! [SY100: $i] :
                            ~ ~ ( ~ ( in @ SY136 @ SY100 )
                                | ~ ( in @ SY100 @ SV15 ) ) )
                  | ~ ( ~ ~ ! [SY101: $i] :
                              ~ ~ ( ~ ( in @ SY136 @ SY101 )
                                  | ~ ( in @ SY101 @ SV15 ) )
                      | ( in @ SY136 @ SV34 ) ) ) )
        | ~ ( ~ ! [SY139: $i] :
                  ~ ( ~ ( ~ ( in @ SY139 @ SV34 )
                        | ~ ! [SY103: $i] :
                              ~ ~ ( ~ ( in @ SY139 @ SY103 )
                                  | ~ ( in @ SY103 @ SV15 ) ) )
                    | ~ ( ~ ~ ! [SY104: $i] :
                                ~ ~ ( ~ ( in @ SY139 @ SY104 )
                                    | ~ ( in @ SY104 @ SV15 ) )
                        | ( in @ SY139 @ SV34 ) ) )
            | ( SV34
              = ( union @ SV15 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[254]) ).

thf(280,plain,
    ! [SV16: $i,SV35: $i] :
      ( ( ( ~ ( element @ SV35 @ ( powerset @ SV16 ) ) )
        = $true )
      | ( ( ( subset_complement @ SV16 @ SV35 )
          = ( set_difference @ SV16 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[255]) ).

thf(281,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV17 @ SV36 )
                | ~ ! [SY142: $i] :
                      ~ ~ ( ~ ( in @ SY142 @ SV17 )
                          | ~ ( in @ SY142 @ SV36 ) ) )
        | ~ ~ ~ ( ~ ~ ! [SY143: $i] :
                        ~ ~ ( ~ ( in @ SY143 @ SV17 )
                            | ~ ( in @ SY143 @ SV36 ) )
                | ~ ( disjoint @ SV17 @ SV36 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[256]) ).

thf(282,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ~ ( ( SV37
             != ( singleton @ SV18 ) )
            | ! [SY144: $i] :
                ~ ( ~ ( ~ ( in @ SY144 @ SV37 )
                      | ( SY144 = SV18 ) )
                  | ~ ( ( SY144 != SV18 )
                      | ( in @ SY144 @ SV37 ) ) ) )
        | ~ ( ~ ! [SY145: $i] :
                  ~ ( ~ ( ~ ( in @ SY145 @ SV37 )
                        | ( SY145 = SV18 ) )
                    | ~ ( ( SY145 != SV18 )
                        | ( in @ SY145 @ SV37 ) ) )
            | ( SV37
              = ( singleton @ SV18 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[257]) ).

thf(283,plain,
    ! [SV19: $i] :
      ( ( ( ~ ( empty @ SV19 ) )
        = $false )
      | ( ( ~ ! [SY112: $i] :
                ~ ~ ( ~ ( element @ SY112 @ ( powerset @ SV19 ) )
                    | ~ ~ ( empty @ SY112 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[258]) ).

thf(284,plain,
    ( ( in @ sK2_SY67 @ ( subset_complement @ sK1_A @ sK3_SY69 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[259]) ).

thf(285,plain,
    ( ( in @ sK2_SY67 @ sK3_SY69 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[260]) ).

thf(286,plain,
    ! [SV20: $i,SV38: $i] :
      ( ( ( ~ ( element @ SV38 @ ( powerset @ SV20 ) ) )
        = $true )
      | ( ( ( subset_complement @ SV20 @ ( subset_complement @ SV20 @ SV38 ) )
          = SV38 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[261]) ).

thf(287,plain,
    ! [SV39: $i,SV21: $i] :
      ( ( ( ~ ( in @ SV21 @ SV39 ) )
        = $true )
      | ( ( ~ ( in @ SV39 @ SV21 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[262]) ).

thf(288,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ~ ( ~ ( ( SV45
                 != ( set_intersection2 @ SV22 @ SV40 ) )
                | ! [SY156: $i] :
                    ~ ( ~ ( ~ ( in @ SY156 @ SV45 )
                          | ~ ( ~ ( in @ SY156 @ SV22 )
                              | ~ ( in @ SY156 @ SV40 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY156 @ SV22 )
                                | ~ ( in @ SY156 @ SV40 ) )
                          | ( in @ SY156 @ SV45 ) ) ) )
            | ~ ( ~ ! [SY157: $i] :
                      ~ ( ~ ( ~ ( in @ SY157 @ SV45 )
                            | ~ ( ~ ( in @ SY157 @ SV22 )
                                | ~ ( in @ SY157 @ SV40 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY157 @ SV22 )
                                  | ~ ( in @ SY157 @ SV40 ) )
                            | ( in @ SY157 @ SV45 ) ) )
                | ( SV45
                  = ( set_intersection2 @ SV22 @ SV40 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[263]) ).

thf(289,plain,
    ! [SV41: $i,SV23: $i] :
      ( ( ( ~ ! [SY149: $i] :
                ~ ( ~ ( ~ ( in @ SY149 @ SV23 )
                      | ( in @ SY149 @ SV41 ) )
                  | ~ ( ~ ( in @ SY149 @ SV41 )
                      | ( in @ SY149 @ SV23 ) ) ) )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[264]) ).

thf(290,plain,
    ! [SV24: $i] :
      ( ( ~ ~ ( ~ ( element @ ( sK5_SY121 @ SV24 ) @ ( powerset @ SV24 ) )
              | ~ ( empty @ ( sK5_SY121 @ SV24 ) ) ) )
      = $false ),
    inference(extcnf_forall_neg,[status(esa)],[265]) ).

thf(291,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ~ ( ( SV25
             != ( powerset @ SV3 ) )
            | ! [SY122: $i] :
                ~ ( ~ ( ~ ( in @ SY122 @ SV25 )
                      | ( subset @ SY122 @ SV3 ) )
                  | ~ ( ~ ( subset @ SY122 @ SV3 )
                      | ( in @ SY122 @ SV25 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[266]) ).

thf(292,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ~ ( ~ ! [SY123: $i] :
                  ~ ( ~ ( ~ ( in @ SY123 @ SV25 )
                        | ( subset @ SY123 @ SV3 ) )
                    | ~ ( ~ ( subset @ SY123 @ SV3 )
                        | ( in @ SY123 @ SV25 ) ) )
            | ( SV25
              = ( powerset @ SV3 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[266]) ).

thf(293,plain,
    ! [SV4: $i,SV26: $i] :
      ( ( ( element @ SV26 @ ( powerset @ SV4 ) )
        = $false )
      | ( ( element @ ( subset_complement @ SV4 @ SV26 ) @ ( powerset @ SV4 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[267]) ).

thf(294,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ~ ( ( SV42
             != ( set_difference @ SV5 @ SV27 ) )
            | ! [SY150: $i] :
                ~ ( ~ ( ~ ( in @ SY150 @ SV42 )
                      | ~ ( ~ ( in @ SY150 @ SV5 )
                          | ~ ~ ( in @ SY150 @ SV27 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY150 @ SV5 )
                            | ~ ~ ( in @ SY150 @ SV27 ) )
                      | ( in @ SY150 @ SV42 ) ) ) )
        | ~ ( ~ ! [SY151: $i] :
                  ~ ( ~ ( ~ ( in @ SY151 @ SV42 )
                        | ~ ( ~ ( in @ SY151 @ SV5 )
                            | ~ ~ ( in @ SY151 @ SV27 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY151 @ SV5 )
                              | ~ ~ ( in @ SY151 @ SV27 ) )
                        | ( in @ SY151 @ SV42 ) ) )
            | ( SV42
              = ( set_difference @ SV5 @ SV27 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[268]) ).

thf(295,plain,
    ! [SV6: $i] :
      ( ( ( SV6 = empty_set )
        = $true )
      | ( ( ! [SY78: $i] :
              ( ~ ( element @ SY78 @ ( powerset @ SV6 ) )
              | ! [SY79: $i] :
                  ( ~ ( element @ SY79 @ SV6 )
                  | ~ ~ ( in @ SY79 @ SY78 )
                  | ( in @ SY79 @ ( subset_complement @ SV6 @ SY78 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[269]) ).

thf(296,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ~ ( ( SV43
             != ( unordered_pair @ SV7 @ SV28 ) )
            | ! [SY152: $i] :
                ~ ( ~ ( ~ ( in @ SY152 @ SV43 )
                      | ( SY152 = SV7 )
                      | ( SY152 = SV28 ) )
                  | ~ ( ~ ( ( SY152 = SV7 )
                          | ( SY152 = SV28 ) )
                      | ( in @ SY152 @ SV43 ) ) ) )
        | ~ ( ~ ! [SY153: $i] :
                  ~ ( ~ ( ~ ( in @ SY153 @ SV43 )
                        | ( SY153 = SV7 )
                        | ( SY153 = SV28 ) )
                    | ~ ( ~ ( ( SY153 = SV7 )
                            | ( SY153 = SV28 ) )
                        | ( in @ SY153 @ SV43 ) ) )
            | ( SV43
              = ( unordered_pair @ SV7 @ SV28 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[270]) ).

thf(297,plain,
    ! [SV8: $i,SV29: $i] :
      ( ( ( element @ SV29 @ ( powerset @ SV8 ) )
        = $false )
      | ( ( ! [SY130: $i] :
              ( ~ ( in @ SY130 @ SV29 )
              | ( in @ SY130 @ SV8 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[271]) ).

thf(298,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ~ ( ~ ( subset @ SV9 @ SV30 )
            | ! [SY131: $i] :
                ( ~ ( in @ SY131 @ SV9 )
                | ( in @ SY131 @ SV30 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[272]) ).

thf(299,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ~ ( ~ ! [SY132: $i] :
                  ( ~ ( in @ SY132 @ SV9 )
                  | ( in @ SY132 @ SV30 ) )
            | ( subset @ SV9 @ SV30 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[272]) ).

thf(300,plain,
    ! [SV31: $i,SV10: $i] :
      ( ( ~ ( in @ SV10 @ SV31 )
        | ~ ( empty @ SV31 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[273]) ).

thf(301,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ~ ( ~ ~ ( empty @ SV11 )
            | ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                    | ( in @ SV32 @ SV11 ) )
                | ~ ( ~ ( in @ SV32 @ SV11 )
                    | ( element @ SV32 @ SV11 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[274]) ).

thf(302,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ~ ( ~ ( empty @ SV11 )
            | ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                    | ( empty @ SV32 ) )
                | ~ ( ~ ( empty @ SV32 )
                    | ( element @ SV32 @ SV11 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[274]) ).

thf(303,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ~ ( ( SV44
             != ( set_union2 @ SV12 @ SV33 ) )
            | ! [SY154: $i] :
                ~ ( ~ ( ~ ( in @ SY154 @ SV44 )
                      | ( in @ SY154 @ SV12 )
                      | ( in @ SY154 @ SV33 ) )
                  | ~ ( ~ ( ( in @ SY154 @ SV12 )
                          | ( in @ SY154 @ SV33 ) )
                      | ( in @ SY154 @ SV44 ) ) ) )
        | ~ ( ~ ! [SY155: $i] :
                  ~ ( ~ ( ~ ( in @ SY155 @ SV44 )
                        | ( in @ SY155 @ SV12 )
                        | ( in @ SY155 @ SV33 ) )
                    | ~ ( ~ ( ( in @ SY155 @ SV12 )
                            | ( in @ SY155 @ SV33 ) )
                        | ( in @ SY155 @ SV44 ) ) )
            | ( SV44
              = ( set_union2 @ SV12 @ SV33 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[275]) ).

thf(304,plain,
    ! [SV13: $i] :
      ( ( ( SV13 != empty_set )
        | ! [SY95: $i] :
            ~ ( in @ SY95 @ SV13 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[276]) ).

thf(305,plain,
    ! [SV13: $i] :
      ( ( ~ ! [SY96: $i] :
              ~ ( in @ SY96 @ SV13 )
        | ( SV13 = empty_set ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[277]) ).

thf(306,plain,
    ! [SV14: $i] :
      ( ( element @ ( sK4_SY97 @ SV14 ) @ SV14 )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[278]) ).

thf(307,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ~ ( ( SV34
             != ( union @ SV15 ) )
            | ! [SY136: $i] :
                ~ ( ~ ( ~ ( in @ SY136 @ SV34 )
                      | ~ ! [SY100: $i] :
                            ~ ~ ( ~ ( in @ SY136 @ SY100 )
                                | ~ ( in @ SY100 @ SV15 ) ) )
                  | ~ ( ~ ~ ! [SY101: $i] :
                              ~ ~ ( ~ ( in @ SY136 @ SY101 )
                                  | ~ ( in @ SY101 @ SV15 ) )
                      | ( in @ SY136 @ SV34 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[279]) ).

thf(308,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ~ ( ~ ! [SY139: $i] :
                  ~ ( ~ ( ~ ( in @ SY139 @ SV34 )
                        | ~ ! [SY103: $i] :
                              ~ ~ ( ~ ( in @ SY139 @ SY103 )
                                  | ~ ( in @ SY103 @ SV15 ) ) )
                    | ~ ( ~ ~ ! [SY104: $i] :
                                ~ ~ ( ~ ( in @ SY139 @ SY104 )
                                    | ~ ( in @ SY104 @ SV15 ) )
                        | ( in @ SY139 @ SV34 ) ) )
            | ( SV34
              = ( union @ SV15 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[279]) ).

thf(309,plain,
    ! [SV16: $i,SV35: $i] :
      ( ( ( element @ SV35 @ ( powerset @ SV16 ) )
        = $false )
      | ( ( ( subset_complement @ SV16 @ SV35 )
          = ( set_difference @ SV16 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[280]) ).

thf(310,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV17 @ SV36 )
                | ~ ! [SY142: $i] :
                      ~ ~ ( ~ ( in @ SY142 @ SV17 )
                          | ~ ( in @ SY142 @ SV36 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[281]) ).

thf(311,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ~ ~ ( ~ ~ ! [SY143: $i] :
                        ~ ~ ( ~ ( in @ SY143 @ SV17 )
                            | ~ ( in @ SY143 @ SV36 ) )
                | ~ ( disjoint @ SV17 @ SV36 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[281]) ).

thf(312,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ~ ( ( SV37
             != ( singleton @ SV18 ) )
            | ! [SY144: $i] :
                ~ ( ~ ( ~ ( in @ SY144 @ SV37 )
                      | ( SY144 = SV18 ) )
                  | ~ ( ( SY144 != SV18 )
                      | ( in @ SY144 @ SV37 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[282]) ).

thf(313,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ~ ( ~ ! [SY145: $i] :
                  ~ ( ~ ( ~ ( in @ SY145 @ SV37 )
                        | ( SY145 = SV18 ) )
                    | ~ ( ( SY145 != SV18 )
                        | ( in @ SY145 @ SV37 ) ) )
            | ( SV37
              = ( singleton @ SV18 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[282]) ).

thf(314,plain,
    ! [SV19: $i] :
      ( ( ( empty @ SV19 )
        = $true )
      | ( ( ~ ! [SY112: $i] :
                ~ ~ ( ~ ( element @ SY112 @ ( powerset @ SV19 ) )
                    | ~ ~ ( empty @ SY112 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[283]) ).

thf(315,plain,
    ! [SV20: $i,SV38: $i] :
      ( ( ( element @ SV38 @ ( powerset @ SV20 ) )
        = $false )
      | ( ( ( subset_complement @ SV20 @ ( subset_complement @ SV20 @ SV38 ) )
          = SV38 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[286]) ).

thf(316,plain,
    ! [SV39: $i,SV21: $i] :
      ( ( ( in @ SV21 @ SV39 )
        = $false )
      | ( ( ~ ( in @ SV39 @ SV21 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[287]) ).

thf(317,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ~ ( ( SV45
             != ( set_intersection2 @ SV22 @ SV40 ) )
            | ! [SY156: $i] :
                ~ ( ~ ( ~ ( in @ SY156 @ SV45 )
                      | ~ ( ~ ( in @ SY156 @ SV22 )
                          | ~ ( in @ SY156 @ SV40 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY156 @ SV22 )
                            | ~ ( in @ SY156 @ SV40 ) )
                      | ( in @ SY156 @ SV45 ) ) ) )
        | ~ ( ~ ! [SY157: $i] :
                  ~ ( ~ ( ~ ( in @ SY157 @ SV45 )
                        | ~ ( ~ ( in @ SY157 @ SV22 )
                            | ~ ( in @ SY157 @ SV40 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY157 @ SV22 )
                              | ~ ( in @ SY157 @ SV40 ) )
                        | ( in @ SY157 @ SV45 ) ) )
            | ( SV45
              = ( set_intersection2 @ SV22 @ SV40 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[288]) ).

thf(318,plain,
    ! [SV41: $i,SV23: $i] :
      ( ( ( ! [SY149: $i] :
              ~ ( ~ ( ~ ( in @ SY149 @ SV23 )
                    | ( in @ SY149 @ SV41 ) )
                | ~ ( ~ ( in @ SY149 @ SV41 )
                    | ( in @ SY149 @ SV23 ) ) ) )
        = $false )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[289]) ).

thf(319,plain,
    ! [SV24: $i] :
      ( ( ~ ( ~ ( element @ ( sK5_SY121 @ SV24 ) @ ( powerset @ SV24 ) )
            | ~ ( empty @ ( sK5_SY121 @ SV24 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[290]) ).

thf(320,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ( SV25
         != ( powerset @ SV3 ) )
        | ! [SY122: $i] :
            ~ ( ~ ( ~ ( in @ SY122 @ SV25 )
                  | ( subset @ SY122 @ SV3 ) )
              | ~ ( ~ ( subset @ SY122 @ SV3 )
                  | ( in @ SY122 @ SV25 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[291]) ).

thf(321,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ~ ! [SY123: $i] :
              ~ ( ~ ( ~ ( in @ SY123 @ SV25 )
                    | ( subset @ SY123 @ SV3 ) )
                | ~ ( ~ ( subset @ SY123 @ SV3 )
                    | ( in @ SY123 @ SV25 ) ) )
        | ( SV25
          = ( powerset @ SV3 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[292]) ).

thf(322,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ~ ( ( SV42
             != ( set_difference @ SV5 @ SV27 ) )
            | ! [SY150: $i] :
                ~ ( ~ ( ~ ( in @ SY150 @ SV42 )
                      | ~ ( ~ ( in @ SY150 @ SV5 )
                          | ~ ~ ( in @ SY150 @ SV27 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY150 @ SV5 )
                            | ~ ~ ( in @ SY150 @ SV27 ) )
                      | ( in @ SY150 @ SV42 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[294]) ).

thf(323,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ~ ( ~ ! [SY151: $i] :
                  ~ ( ~ ( ~ ( in @ SY151 @ SV42 )
                        | ~ ( ~ ( in @ SY151 @ SV5 )
                            | ~ ~ ( in @ SY151 @ SV27 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY151 @ SV5 )
                              | ~ ~ ( in @ SY151 @ SV27 ) )
                        | ( in @ SY151 @ SV42 ) ) )
            | ( SV42
              = ( set_difference @ SV5 @ SV27 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[294]) ).

thf(324,plain,
    ! [SV6: $i,SV46: $i] :
      ( ( ( ~ ( element @ SV46 @ ( powerset @ SV6 ) )
          | ! [SY158: $i] :
              ( ~ ( element @ SY158 @ SV6 )
              | ~ ~ ( in @ SY158 @ SV46 )
              | ( in @ SY158 @ ( subset_complement @ SV6 @ SV46 ) ) ) )
        = $true )
      | ( ( SV6 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[295]) ).

thf(325,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ~ ( ( SV43
             != ( unordered_pair @ SV7 @ SV28 ) )
            | ! [SY152: $i] :
                ~ ( ~ ( ~ ( in @ SY152 @ SV43 )
                      | ( SY152 = SV7 )
                      | ( SY152 = SV28 ) )
                  | ~ ( ~ ( ( SY152 = SV7 )
                          | ( SY152 = SV28 ) )
                      | ( in @ SY152 @ SV43 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[296]) ).

thf(326,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ~ ( ~ ! [SY153: $i] :
                  ~ ( ~ ( ~ ( in @ SY153 @ SV43 )
                        | ( SY153 = SV7 )
                        | ( SY153 = SV28 ) )
                    | ~ ( ~ ( ( SY153 = SV7 )
                            | ( SY153 = SV28 ) )
                        | ( in @ SY153 @ SV43 ) ) )
            | ( SV43
              = ( unordered_pair @ SV7 @ SV28 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[296]) ).

thf(327,plain,
    ! [SV8: $i,SV29: $i,SV47: $i] :
      ( ( ( ~ ( in @ SV47 @ SV29 )
          | ( in @ SV47 @ SV8 ) )
        = $true )
      | ( ( element @ SV29 @ ( powerset @ SV8 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[297]) ).

thf(328,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ~ ( subset @ SV9 @ SV30 )
        | ! [SY131: $i] :
            ( ~ ( in @ SY131 @ SV9 )
            | ( in @ SY131 @ SV30 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[298]) ).

thf(329,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ~ ! [SY132: $i] :
              ( ~ ( in @ SY132 @ SV9 )
              | ( in @ SY132 @ SV30 ) )
        | ( subset @ SV9 @ SV30 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[299]) ).

thf(330,plain,
    ! [SV31: $i,SV10: $i] :
      ( ( ( ~ ( in @ SV10 @ SV31 ) )
        = $true )
      | ( ( ~ ( empty @ SV31 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[300]) ).

thf(331,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ~ ~ ( empty @ SV11 )
        | ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                | ( in @ SV32 @ SV11 ) )
            | ~ ( ~ ( in @ SV32 @ SV11 )
                | ( element @ SV32 @ SV11 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[301]) ).

thf(332,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ~ ( empty @ SV11 )
        | ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                | ( empty @ SV32 ) )
            | ~ ( ~ ( empty @ SV32 )
                | ( element @ SV32 @ SV11 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[302]) ).

thf(333,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ~ ( ( SV44
             != ( set_union2 @ SV12 @ SV33 ) )
            | ! [SY154: $i] :
                ~ ( ~ ( ~ ( in @ SY154 @ SV44 )
                      | ( in @ SY154 @ SV12 )
                      | ( in @ SY154 @ SV33 ) )
                  | ~ ( ~ ( ( in @ SY154 @ SV12 )
                          | ( in @ SY154 @ SV33 ) )
                      | ( in @ SY154 @ SV44 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[303]) ).

thf(334,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ~ ( ~ ! [SY155: $i] :
                  ~ ( ~ ( ~ ( in @ SY155 @ SV44 )
                        | ( in @ SY155 @ SV12 )
                        | ( in @ SY155 @ SV33 ) )
                    | ~ ( ~ ( ( in @ SY155 @ SV12 )
                            | ( in @ SY155 @ SV33 ) )
                        | ( in @ SY155 @ SV44 ) ) )
            | ( SV44
              = ( set_union2 @ SV12 @ SV33 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[303]) ).

thf(335,plain,
    ! [SV13: $i] :
      ( ( ( SV13 != empty_set )
        = $true )
      | ( ( ! [SY95: $i] :
              ~ ( in @ SY95 @ SV13 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[304]) ).

thf(336,plain,
    ! [SV13: $i] :
      ( ( ( ~ ! [SY96: $i] :
                ~ ( in @ SY96 @ SV13 ) )
        = $true )
      | ( ( SV13 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[305]) ).

thf(337,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ( SV34
         != ( union @ SV15 ) )
        | ! [SY136: $i] :
            ~ ( ~ ( ~ ( in @ SY136 @ SV34 )
                  | ~ ! [SY100: $i] :
                        ~ ~ ( ~ ( in @ SY136 @ SY100 )
                            | ~ ( in @ SY100 @ SV15 ) ) )
              | ~ ( ~ ~ ! [SY101: $i] :
                          ~ ~ ( ~ ( in @ SY136 @ SY101 )
                              | ~ ( in @ SY101 @ SV15 ) )
                  | ( in @ SY136 @ SV34 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[307]) ).

thf(338,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ~ ! [SY139: $i] :
              ~ ( ~ ( ~ ( in @ SY139 @ SV34 )
                    | ~ ! [SY103: $i] :
                          ~ ~ ( ~ ( in @ SY139 @ SY103 )
                              | ~ ( in @ SY103 @ SV15 ) ) )
                | ~ ( ~ ~ ! [SY104: $i] :
                            ~ ~ ( ~ ( in @ SY139 @ SY104 )
                                | ~ ( in @ SY104 @ SV15 ) )
                    | ( in @ SY139 @ SV34 ) ) )
        | ( SV34
          = ( union @ SV15 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[308]) ).

thf(339,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ~ ( ~ ~ ( disjoint @ SV17 @ SV36 )
              | ~ ! [SY142: $i] :
                    ~ ~ ( ~ ( in @ SY142 @ SV17 )
                        | ~ ( in @ SY142 @ SV36 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[310]) ).

thf(340,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ~ ( ~ ~ ! [SY143: $i] :
                      ~ ~ ( ~ ( in @ SY143 @ SV17 )
                          | ~ ( in @ SY143 @ SV36 ) )
              | ~ ( disjoint @ SV17 @ SV36 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[311]) ).

thf(341,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ( SV37
         != ( singleton @ SV18 ) )
        | ! [SY144: $i] :
            ~ ( ~ ( ~ ( in @ SY144 @ SV37 )
                  | ( SY144 = SV18 ) )
              | ~ ( ( SY144 != SV18 )
                  | ( in @ SY144 @ SV37 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[312]) ).

thf(342,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ~ ! [SY145: $i] :
              ~ ( ~ ( ~ ( in @ SY145 @ SV37 )
                    | ( SY145 = SV18 ) )
                | ~ ( ( SY145 != SV18 )
                    | ( in @ SY145 @ SV37 ) ) )
        | ( SV37
          = ( singleton @ SV18 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[313]) ).

thf(343,plain,
    ! [SV19: $i] :
      ( ( ( ! [SY112: $i] :
              ~ ~ ( ~ ( element @ SY112 @ ( powerset @ SV19 ) )
                  | ~ ~ ( empty @ SY112 ) ) )
        = $false )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[314]) ).

thf(344,plain,
    ! [SV21: $i,SV39: $i] :
      ( ( ( in @ SV39 @ SV21 )
        = $false )
      | ( ( in @ SV21 @ SV39 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[316]) ).

thf(345,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ~ ( ( SV45
             != ( set_intersection2 @ SV22 @ SV40 ) )
            | ! [SY156: $i] :
                ~ ( ~ ( ~ ( in @ SY156 @ SV45 )
                      | ~ ( ~ ( in @ SY156 @ SV22 )
                          | ~ ( in @ SY156 @ SV40 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY156 @ SV22 )
                            | ~ ( in @ SY156 @ SV40 ) )
                      | ( in @ SY156 @ SV45 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[317]) ).

thf(346,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ~ ( ~ ! [SY157: $i] :
                  ~ ( ~ ( ~ ( in @ SY157 @ SV45 )
                        | ~ ( ~ ( in @ SY157 @ SV22 )
                            | ~ ( in @ SY157 @ SV40 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY157 @ SV22 )
                              | ~ ( in @ SY157 @ SV40 ) )
                        | ( in @ SY157 @ SV45 ) ) )
            | ( SV45
              = ( set_intersection2 @ SV22 @ SV40 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[317]) ).

thf(347,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
                  | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 ) )
              | ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
                  | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) ) ) )
        = $false )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[318]) ).

thf(348,plain,
    ! [SV24: $i] :
      ( ( ~ ( element @ ( sK5_SY121 @ SV24 ) @ ( powerset @ SV24 ) )
        | ~ ( empty @ ( sK5_SY121 @ SV24 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[319]) ).

thf(349,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ( SV25
         != ( powerset @ SV3 ) )
        = $true )
      | ( ( ! [SY122: $i] :
              ~ ( ~ ( ~ ( in @ SY122 @ SV25 )
                    | ( subset @ SY122 @ SV3 ) )
                | ~ ( ~ ( subset @ SY122 @ SV3 )
                    | ( in @ SY122 @ SV25 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[320]) ).

thf(350,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ( ~ ! [SY123: $i] :
                ~ ( ~ ( ~ ( in @ SY123 @ SV25 )
                      | ( subset @ SY123 @ SV3 ) )
                  | ~ ( ~ ( subset @ SY123 @ SV3 )
                      | ( in @ SY123 @ SV25 ) ) ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[321]) ).

thf(351,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ( SV42
         != ( set_difference @ SV5 @ SV27 ) )
        | ! [SY150: $i] :
            ~ ( ~ ( ~ ( in @ SY150 @ SV42 )
                  | ~ ( ~ ( in @ SY150 @ SV5 )
                      | ~ ~ ( in @ SY150 @ SV27 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY150 @ SV5 )
                        | ~ ~ ( in @ SY150 @ SV27 ) )
                  | ( in @ SY150 @ SV42 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[322]) ).

thf(352,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ~ ! [SY151: $i] :
              ~ ( ~ ( ~ ( in @ SY151 @ SV42 )
                    | ~ ( ~ ( in @ SY151 @ SV5 )
                        | ~ ~ ( in @ SY151 @ SV27 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY151 @ SV5 )
                          | ~ ~ ( in @ SY151 @ SV27 ) )
                    | ( in @ SY151 @ SV42 ) ) )
        | ( SV42
          = ( set_difference @ SV5 @ SV27 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[323]) ).

thf(353,plain,
    ! [SV6: $i,SV46: $i] :
      ( ( ( ~ ( element @ SV46 @ ( powerset @ SV6 ) ) )
        = $true )
      | ( ( ! [SY158: $i] :
              ( ~ ( element @ SY158 @ SV6 )
              | ~ ~ ( in @ SY158 @ SV46 )
              | ( in @ SY158 @ ( subset_complement @ SV6 @ SV46 ) ) ) )
        = $true )
      | ( ( SV6 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[324]) ).

thf(354,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ( SV43
         != ( unordered_pair @ SV7 @ SV28 ) )
        | ! [SY152: $i] :
            ~ ( ~ ( ~ ( in @ SY152 @ SV43 )
                  | ( SY152 = SV7 )
                  | ( SY152 = SV28 ) )
              | ~ ( ~ ( ( SY152 = SV7 )
                      | ( SY152 = SV28 ) )
                  | ( in @ SY152 @ SV43 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[325]) ).

thf(355,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ~ ! [SY153: $i] :
              ~ ( ~ ( ~ ( in @ SY153 @ SV43 )
                    | ( SY153 = SV7 )
                    | ( SY153 = SV28 ) )
                | ~ ( ~ ( ( SY153 = SV7 )
                        | ( SY153 = SV28 ) )
                    | ( in @ SY153 @ SV43 ) ) )
        | ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[326]) ).

thf(356,plain,
    ! [SV8: $i,SV29: $i,SV47: $i] :
      ( ( ( ~ ( in @ SV47 @ SV29 ) )
        = $true )
      | ( ( in @ SV47 @ SV8 )
        = $true )
      | ( ( element @ SV29 @ ( powerset @ SV8 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[327]) ).

thf(357,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ( ~ ( subset @ SV9 @ SV30 ) )
        = $true )
      | ( ( ! [SY131: $i] :
              ( ~ ( in @ SY131 @ SV9 )
              | ( in @ SY131 @ SV30 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[328]) ).

thf(358,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ( ~ ! [SY132: $i] :
                ( ~ ( in @ SY132 @ SV9 )
                | ( in @ SY132 @ SV30 ) ) )
        = $true )
      | ( ( subset @ SV9 @ SV30 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[329]) ).

thf(359,plain,
    ! [SV31: $i,SV10: $i] :
      ( ( ( in @ SV10 @ SV31 )
        = $false )
      | ( ( ~ ( empty @ SV31 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[330]) ).

thf(360,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ( ~ ~ ( empty @ SV11 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                  | ( in @ SV32 @ SV11 ) )
              | ~ ( ~ ( in @ SV32 @ SV11 )
                  | ( element @ SV32 @ SV11 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[331]) ).

thf(361,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ( ~ ( empty @ SV11 ) )
        = $true )
      | ( ( ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                  | ( empty @ SV32 ) )
              | ~ ( ~ ( empty @ SV32 )
                  | ( element @ SV32 @ SV11 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[332]) ).

thf(362,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ( SV44
         != ( set_union2 @ SV12 @ SV33 ) )
        | ! [SY154: $i] :
            ~ ( ~ ( ~ ( in @ SY154 @ SV44 )
                  | ( in @ SY154 @ SV12 )
                  | ( in @ SY154 @ SV33 ) )
              | ~ ( ~ ( ( in @ SY154 @ SV12 )
                      | ( in @ SY154 @ SV33 ) )
                  | ( in @ SY154 @ SV44 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[333]) ).

thf(363,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ~ ! [SY155: $i] :
              ~ ( ~ ( ~ ( in @ SY155 @ SV44 )
                    | ( in @ SY155 @ SV12 )
                    | ( in @ SY155 @ SV33 ) )
                | ~ ( ~ ( ( in @ SY155 @ SV12 )
                        | ( in @ SY155 @ SV33 ) )
                    | ( in @ SY155 @ SV44 ) ) )
        | ( SV44
          = ( set_union2 @ SV12 @ SV33 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[334]) ).

thf(364,plain,
    ! [SV13: $i] :
      ( ( ( SV13 = empty_set )
        = $false )
      | ( ( ! [SY95: $i] :
              ~ ( in @ SY95 @ SV13 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[335]) ).

thf(365,plain,
    ! [SV13: $i] :
      ( ( ( ! [SY96: $i] :
              ~ ( in @ SY96 @ SV13 ) )
        = $false )
      | ( ( SV13 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[336]) ).

thf(366,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ( SV34
         != ( union @ SV15 ) )
        = $true )
      | ( ( ! [SY136: $i] :
              ~ ( ~ ( ~ ( in @ SY136 @ SV34 )
                    | ~ ! [SY100: $i] :
                          ~ ~ ( ~ ( in @ SY136 @ SY100 )
                              | ~ ( in @ SY100 @ SV15 ) ) )
                | ~ ( ~ ~ ! [SY101: $i] :
                            ~ ~ ( ~ ( in @ SY136 @ SY101 )
                                | ~ ( in @ SY101 @ SV15 ) )
                    | ( in @ SY136 @ SV34 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[337]) ).

thf(367,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ( ~ ! [SY139: $i] :
                ~ ( ~ ( ~ ( in @ SY139 @ SV34 )
                      | ~ ! [SY103: $i] :
                            ~ ~ ( ~ ( in @ SY139 @ SY103 )
                                | ~ ( in @ SY103 @ SV15 ) ) )
                  | ~ ( ~ ~ ! [SY104: $i] :
                              ~ ~ ( ~ ( in @ SY139 @ SY104 )
                                  | ~ ( in @ SY104 @ SV15 ) )
                      | ( in @ SY139 @ SV34 ) ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[338]) ).

thf(368,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ( ~ ~ ( disjoint @ SV17 @ SV36 )
            | ~ ! [SY142: $i] :
                  ~ ~ ( ~ ( in @ SY142 @ SV17 )
                      | ~ ( in @ SY142 @ SV36 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[339]) ).

thf(369,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ( ~ ~ ! [SY143: $i] :
                    ~ ~ ( ~ ( in @ SY143 @ SV17 )
                        | ~ ( in @ SY143 @ SV36 ) )
            | ~ ( disjoint @ SV17 @ SV36 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[340]) ).

thf(370,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ( SV37
         != ( singleton @ SV18 ) )
        = $true )
      | ( ( ! [SY144: $i] :
              ~ ( ~ ( ~ ( in @ SY144 @ SV37 )
                    | ( SY144 = SV18 ) )
                | ~ ( ( SY144 != SV18 )
                    | ( in @ SY144 @ SV37 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[341]) ).

thf(371,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ( ~ ! [SY145: $i] :
                ~ ( ~ ( ~ ( in @ SY145 @ SV37 )
                      | ( SY145 = SV18 ) )
                  | ~ ( ( SY145 != SV18 )
                      | ( in @ SY145 @ SV37 ) ) ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[342]) ).

thf(372,plain,
    ! [SV19: $i] :
      ( ( ( ~ ~ ( ~ ( element @ ( sK7_SY112 @ SV19 ) @ ( powerset @ SV19 ) )
                | ~ ~ ( empty @ ( sK7_SY112 @ SV19 ) ) ) )
        = $false )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[343]) ).

thf(373,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ( SV45
         != ( set_intersection2 @ SV22 @ SV40 ) )
        | ! [SY156: $i] :
            ~ ( ~ ( ~ ( in @ SY156 @ SV45 )
                  | ~ ( ~ ( in @ SY156 @ SV22 )
                      | ~ ( in @ SY156 @ SV40 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY156 @ SV22 )
                        | ~ ( in @ SY156 @ SV40 ) )
                  | ( in @ SY156 @ SV45 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[345]) ).

thf(374,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ~ ! [SY157: $i] :
              ~ ( ~ ( ~ ( in @ SY157 @ SV45 )
                    | ~ ( ~ ( in @ SY157 @ SV22 )
                        | ~ ( in @ SY157 @ SV40 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY157 @ SV22 )
                          | ~ ( in @ SY157 @ SV40 ) )
                    | ( in @ SY157 @ SV45 ) ) )
        | ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[346]) ).

thf(375,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
              | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 ) )
          | ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
              | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) ) )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[347]) ).

thf(376,plain,
    ! [SV24: $i] :
      ( ( ~ ( element @ ( sK5_SY121 @ SV24 ) @ ( powerset @ SV24 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[348]) ).

thf(377,plain,
    ! [SV24: $i] :
      ( ( ~ ( empty @ ( sK5_SY121 @ SV24 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[348]) ).

thf(378,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ( SV25
          = ( powerset @ SV3 ) )
        = $false )
      | ( ( ! [SY122: $i] :
              ~ ( ~ ( ~ ( in @ SY122 @ SV25 )
                    | ( subset @ SY122 @ SV3 ) )
                | ~ ( ~ ( subset @ SY122 @ SV3 )
                    | ( in @ SY122 @ SV25 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[349]) ).

thf(379,plain,
    ! [SV3: $i,SV25: $i] :
      ( ( ( ! [SY123: $i] :
              ~ ( ~ ( ~ ( in @ SY123 @ SV25 )
                    | ( subset @ SY123 @ SV3 ) )
                | ~ ( ~ ( subset @ SY123 @ SV3 )
                    | ( in @ SY123 @ SV25 ) ) ) )
        = $false )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[350]) ).

thf(380,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ( SV42
         != ( set_difference @ SV5 @ SV27 ) )
        = $true )
      | ( ( ! [SY150: $i] :
              ~ ( ~ ( ~ ( in @ SY150 @ SV42 )
                    | ~ ( ~ ( in @ SY150 @ SV5 )
                        | ~ ~ ( in @ SY150 @ SV27 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY150 @ SV5 )
                          | ~ ~ ( in @ SY150 @ SV27 ) )
                    | ( in @ SY150 @ SV42 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[351]) ).

thf(381,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ( ~ ! [SY151: $i] :
                ~ ( ~ ( ~ ( in @ SY151 @ SV42 )
                      | ~ ( ~ ( in @ SY151 @ SV5 )
                          | ~ ~ ( in @ SY151 @ SV27 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY151 @ SV5 )
                            | ~ ~ ( in @ SY151 @ SV27 ) )
                      | ( in @ SY151 @ SV42 ) ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[352]) ).

thf(382,plain,
    ! [SV6: $i,SV46: $i] :
      ( ( ( element @ SV46 @ ( powerset @ SV6 ) )
        = $false )
      | ( ( ! [SY158: $i] :
              ( ~ ( element @ SY158 @ SV6 )
              | ~ ~ ( in @ SY158 @ SV46 )
              | ( in @ SY158 @ ( subset_complement @ SV6 @ SV46 ) ) ) )
        = $true )
      | ( ( SV6 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[353]) ).

thf(383,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ( SV43
         != ( unordered_pair @ SV7 @ SV28 ) )
        = $true )
      | ( ( ! [SY152: $i] :
              ~ ( ~ ( ~ ( in @ SY152 @ SV43 )
                    | ( SY152 = SV7 )
                    | ( SY152 = SV28 ) )
                | ~ ( ~ ( ( SY152 = SV7 )
                        | ( SY152 = SV28 ) )
                    | ( in @ SY152 @ SV43 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[354]) ).

thf(384,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ( ~ ! [SY153: $i] :
                ~ ( ~ ( ~ ( in @ SY153 @ SV43 )
                      | ( SY153 = SV7 )
                      | ( SY153 = SV28 ) )
                  | ~ ( ~ ( ( SY153 = SV7 )
                          | ( SY153 = SV28 ) )
                      | ( in @ SY153 @ SV43 ) ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[355]) ).

thf(385,plain,
    ! [SV8: $i,SV29: $i,SV47: $i] :
      ( ( ( in @ SV47 @ SV29 )
        = $false )
      | ( ( in @ SV47 @ SV8 )
        = $true )
      | ( ( element @ SV29 @ ( powerset @ SV8 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[356]) ).

thf(386,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ( subset @ SV9 @ SV30 )
        = $false )
      | ( ( ! [SY131: $i] :
              ( ~ ( in @ SY131 @ SV9 )
              | ( in @ SY131 @ SV30 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[357]) ).

thf(387,plain,
    ! [SV30: $i,SV9: $i] :
      ( ( ( ! [SY132: $i] :
              ( ~ ( in @ SY132 @ SV9 )
              | ( in @ SY132 @ SV30 ) ) )
        = $false )
      | ( ( subset @ SV9 @ SV30 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[358]) ).

thf(388,plain,
    ! [SV10: $i,SV31: $i] :
      ( ( ( empty @ SV31 )
        = $false )
      | ( ( in @ SV10 @ SV31 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[359]) ).

thf(389,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ( ~ ( empty @ SV11 ) )
        = $false )
      | ( ( ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                  | ( in @ SV32 @ SV11 ) )
              | ~ ( ~ ( in @ SV32 @ SV11 )
                  | ( element @ SV32 @ SV11 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[360]) ).

thf(390,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ( empty @ SV11 )
        = $false )
      | ( ( ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                  | ( empty @ SV32 ) )
              | ~ ( ~ ( empty @ SV32 )
                  | ( element @ SV32 @ SV11 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[361]) ).

thf(391,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ( SV44
         != ( set_union2 @ SV12 @ SV33 ) )
        = $true )
      | ( ( ! [SY154: $i] :
              ~ ( ~ ( ~ ( in @ SY154 @ SV44 )
                    | ( in @ SY154 @ SV12 )
                    | ( in @ SY154 @ SV33 ) )
                | ~ ( ~ ( ( in @ SY154 @ SV12 )
                        | ( in @ SY154 @ SV33 ) )
                    | ( in @ SY154 @ SV44 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[362]) ).

thf(392,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ( ~ ! [SY155: $i] :
                ~ ( ~ ( ~ ( in @ SY155 @ SV44 )
                      | ( in @ SY155 @ SV12 )
                      | ( in @ SY155 @ SV33 ) )
                  | ~ ( ~ ( ( in @ SY155 @ SV12 )
                          | ( in @ SY155 @ SV33 ) )
                      | ( in @ SY155 @ SV44 ) ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[363]) ).

thf(393,plain,
    ! [SV13: $i,SV48: $i] :
      ( ( ( ~ ( in @ SV48 @ SV13 ) )
        = $true )
      | ( ( SV13 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[364]) ).

thf(394,plain,
    ! [SV13: $i] :
      ( ( ( ~ ( in @ ( sK8_SY96 @ SV13 ) @ SV13 ) )
        = $false )
      | ( ( SV13 = empty_set )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[365]) ).

thf(395,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ( SV34
          = ( union @ SV15 ) )
        = $false )
      | ( ( ! [SY136: $i] :
              ~ ( ~ ( ~ ( in @ SY136 @ SV34 )
                    | ~ ! [SY100: $i] :
                          ~ ~ ( ~ ( in @ SY136 @ SY100 )
                              | ~ ( in @ SY100 @ SV15 ) ) )
                | ~ ( ~ ~ ! [SY101: $i] :
                            ~ ~ ( ~ ( in @ SY136 @ SY101 )
                                | ~ ( in @ SY101 @ SV15 ) )
                    | ( in @ SY136 @ SV34 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[366]) ).

thf(396,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ( ! [SY139: $i] :
              ~ ( ~ ( ~ ( in @ SY139 @ SV34 )
                    | ~ ! [SY103: $i] :
                          ~ ~ ( ~ ( in @ SY139 @ SY103 )
                              | ~ ( in @ SY103 @ SV15 ) ) )
                | ~ ( ~ ~ ! [SY104: $i] :
                            ~ ~ ( ~ ( in @ SY139 @ SY104 )
                                | ~ ( in @ SY104 @ SV15 ) )
                    | ( in @ SY139 @ SV34 ) ) ) )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[367]) ).

thf(397,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ~ ( disjoint @ SV17 @ SV36 )
        | ~ ! [SY142: $i] :
              ~ ~ ( ~ ( in @ SY142 @ SV17 )
                  | ~ ( in @ SY142 @ SV36 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[368]) ).

thf(398,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ~ ~ ! [SY143: $i] :
                ~ ~ ( ~ ( in @ SY143 @ SV17 )
                    | ~ ( in @ SY143 @ SV36 ) )
        | ~ ( disjoint @ SV17 @ SV36 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[369]) ).

thf(399,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ( SV37
          = ( singleton @ SV18 ) )
        = $false )
      | ( ( ! [SY144: $i] :
              ~ ( ~ ( ~ ( in @ SY144 @ SV37 )
                    | ( SY144 = SV18 ) )
                | ~ ( ( SY144 != SV18 )
                    | ( in @ SY144 @ SV37 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[370]) ).

thf(400,plain,
    ! [SV18: $i,SV37: $i] :
      ( ( ( ! [SY145: $i] :
              ~ ( ~ ( ~ ( in @ SY145 @ SV37 )
                    | ( SY145 = SV18 ) )
                | ~ ( ( SY145 != SV18 )
                    | ( in @ SY145 @ SV37 ) ) ) )
        = $false )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[371]) ).

thf(401,plain,
    ! [SV19: $i] :
      ( ( ( ~ ( ~ ( element @ ( sK7_SY112 @ SV19 ) @ ( powerset @ SV19 ) )
              | ~ ~ ( empty @ ( sK7_SY112 @ SV19 ) ) ) )
        = $true )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[372]) ).

thf(402,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ( SV45
         != ( set_intersection2 @ SV22 @ SV40 ) )
        = $true )
      | ( ( ! [SY156: $i] :
              ~ ( ~ ( ~ ( in @ SY156 @ SV45 )
                    | ~ ( ~ ( in @ SY156 @ SV22 )
                        | ~ ( in @ SY156 @ SV40 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY156 @ SV22 )
                          | ~ ( in @ SY156 @ SV40 ) )
                    | ( in @ SY156 @ SV45 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[373]) ).

thf(403,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ( ~ ! [SY157: $i] :
                ~ ( ~ ( ~ ( in @ SY157 @ SV45 )
                      | ~ ( ~ ( in @ SY157 @ SV22 )
                          | ~ ( in @ SY157 @ SV40 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY157 @ SV22 )
                            | ~ ( in @ SY157 @ SV40 ) )
                      | ( in @ SY157 @ SV45 ) ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[374]) ).

thf(404,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
              | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 ) ) )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
              | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) ) )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[375]) ).

thf(405,plain,
    ! [SV24: $i] :
      ( ( element @ ( sK5_SY121 @ SV24 ) @ ( powerset @ SV24 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[376]) ).

thf(406,plain,
    ! [SV24: $i] :
      ( ( empty @ ( sK5_SY121 @ SV24 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[377]) ).

thf(407,plain,
    ! [SV3: $i,SV25: $i,SV49: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV49 @ SV25 )
                  | ( subset @ SV49 @ SV3 ) )
              | ~ ( ~ ( subset @ SV49 @ SV3 )
                  | ( in @ SV49 @ SV25 ) ) ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[378]) ).

thf(408,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
                  | ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 ) )
              | ~ ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
                  | ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) ) ) )
        = $false )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[379]) ).

thf(409,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false )
      | ( ( ! [SY150: $i] :
              ~ ( ~ ( ~ ( in @ SY150 @ SV42 )
                    | ~ ( ~ ( in @ SY150 @ SV5 )
                        | ~ ~ ( in @ SY150 @ SV27 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY150 @ SV5 )
                          | ~ ~ ( in @ SY150 @ SV27 ) )
                    | ( in @ SY150 @ SV42 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[380]) ).

thf(410,plain,
    ! [SV27: $i,SV5: $i,SV42: $i] :
      ( ( ( ! [SY151: $i] :
              ~ ( ~ ( ~ ( in @ SY151 @ SV42 )
                    | ~ ( ~ ( in @ SY151 @ SV5 )
                        | ~ ~ ( in @ SY151 @ SV27 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY151 @ SV5 )
                          | ~ ~ ( in @ SY151 @ SV27 ) )
                    | ( in @ SY151 @ SV42 ) ) ) )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[381]) ).

thf(411,plain,
    ! [SV46: $i,SV6: $i,SV50: $i] :
      ( ( ( ~ ( element @ SV50 @ SV6 )
          | ~ ~ ( in @ SV50 @ SV46 )
          | ( in @ SV50 @ ( subset_complement @ SV6 @ SV46 ) ) )
        = $true )
      | ( ( element @ SV46 @ ( powerset @ SV6 ) )
        = $false )
      | ( ( SV6 = empty_set )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[382]) ).

thf(412,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false )
      | ( ( ! [SY152: $i] :
              ~ ( ~ ( ~ ( in @ SY152 @ SV43 )
                    | ( SY152 = SV7 )
                    | ( SY152 = SV28 ) )
                | ~ ( ~ ( ( SY152 = SV7 )
                        | ( SY152 = SV28 ) )
                    | ( in @ SY152 @ SV43 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[383]) ).

thf(413,plain,
    ! [SV28: $i,SV7: $i,SV43: $i] :
      ( ( ( ! [SY153: $i] :
              ~ ( ~ ( ~ ( in @ SY153 @ SV43 )
                    | ( SY153 = SV7 )
                    | ( SY153 = SV28 ) )
                | ~ ( ~ ( ( SY153 = SV7 )
                        | ( SY153 = SV28 ) )
                    | ( in @ SY153 @ SV43 ) ) ) )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[384]) ).

thf(414,plain,
    ! [SV30: $i,SV9: $i,SV51: $i] :
      ( ( ( ~ ( in @ SV51 @ SV9 )
          | ( in @ SV51 @ SV30 ) )
        = $true )
      | ( ( subset @ SV9 @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[386]) ).

thf(415,plain,
    ! [SV9: $i,SV30: $i] :
      ( ( ( ~ ( in @ ( sK10_SY132 @ SV30 @ SV9 ) @ SV9 )
          | ( in @ ( sK10_SY132 @ SV30 @ SV9 ) @ SV30 ) )
        = $false )
      | ( ( subset @ SV9 @ SV30 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[387]) ).

thf(416,plain,
    ! [SV32: $i,SV11: $i] :
      ( ( ( empty @ SV11 )
        = $true )
      | ( ( ~ ( ~ ( ~ ( element @ SV32 @ SV11 )
                  | ( in @ SV32 @ SV11 ) )
              | ~ ( ~ ( in @ SV32 @ SV11 )
                  | ( element @ SV32 @ SV11 ) ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[389]) ).

thf(417,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( ~ ( element @ SV32 @ SV11 )
              | ( empty @ SV32 ) )
          | ~ ( ~ ( empty @ SV32 )
              | ( element @ SV32 @ SV11 ) ) )
        = $false )
      | ( ( empty @ SV11 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[390]) ).

thf(418,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false )
      | ( ( ! [SY154: $i] :
              ~ ( ~ ( ~ ( in @ SY154 @ SV44 )
                    | ( in @ SY154 @ SV12 )
                    | ( in @ SY154 @ SV33 ) )
                | ~ ( ~ ( ( in @ SY154 @ SV12 )
                        | ( in @ SY154 @ SV33 ) )
                    | ( in @ SY154 @ SV44 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[391]) ).

thf(419,plain,
    ! [SV33: $i,SV12: $i,SV44: $i] :
      ( ( ( ! [SY155: $i] :
              ~ ( ~ ( ~ ( in @ SY155 @ SV44 )
                    | ( in @ SY155 @ SV12 )
                    | ( in @ SY155 @ SV33 ) )
                | ~ ( ~ ( ( in @ SY155 @ SV12 )
                        | ( in @ SY155 @ SV33 ) )
                    | ( in @ SY155 @ SV44 ) ) ) )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[392]) ).

thf(420,plain,
    ! [SV13: $i,SV48: $i] :
      ( ( ( in @ SV48 @ SV13 )
        = $false )
      | ( ( SV13 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[393]) ).

thf(421,plain,
    ! [SV13: $i] :
      ( ( ( in @ ( sK8_SY96 @ SV13 ) @ SV13 )
        = $true )
      | ( ( SV13 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[394]) ).

thf(422,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV52 @ SV34 )
                  | ~ ! [SY159: $i] :
                        ~ ~ ( ~ ( in @ SV52 @ SY159 )
                            | ~ ( in @ SY159 @ SV15 ) ) )
              | ~ ( ~ ~ ! [SY160: $i] :
                          ~ ~ ( ~ ( in @ SV52 @ SY160 )
                              | ~ ( in @ SY160 @ SV15 ) )
                  | ( in @ SV52 @ SV34 ) ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[395]) ).

thf(423,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
                  | ~ ! [SY161: $i] :
                        ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY161 )
                            | ~ ( in @ SY161 @ SV15 ) ) )
              | ~ ( ~ ~ ! [SY162: $i] :
                          ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                              | ~ ( in @ SY162 @ SV15 ) )
                  | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) ) )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[396]) ).

thf(424,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ( ~ ~ ( disjoint @ SV17 @ SV36 ) )
        = $true )
      | ( ( ~ ! [SY142: $i] :
                ~ ~ ( ~ ( in @ SY142 @ SV17 )
                    | ~ ( in @ SY142 @ SV36 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[397]) ).

thf(425,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ( ~ ~ ! [SY143: $i] :
                  ~ ~ ( ~ ( in @ SY143 @ SV17 )
                      | ~ ( in @ SY143 @ SV36 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[398]) ).

thf(426,plain,
    ! [SV18: $i,SV37: $i,SV53: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV53 @ SV37 )
                  | ( SV53 = SV18 ) )
              | ~ ( ( SV53 != SV18 )
                  | ( in @ SV53 @ SV37 ) ) ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[399]) ).

thf(427,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
                  | ( ( sK12_SY145 @ SV18 @ SV37 )
                    = SV18 ) )
              | ~ ( ( ( sK12_SY145 @ SV18 @ SV37 )
                   != SV18 )
                  | ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) ) ) )
        = $false )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[400]) ).

thf(428,plain,
    ! [SV19: $i] :
      ( ( ( ~ ( element @ ( sK7_SY112 @ SV19 ) @ ( powerset @ SV19 ) )
          | ~ ~ ( empty @ ( sK7_SY112 @ SV19 ) ) )
        = $false )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[401]) ).

thf(429,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false )
      | ( ( ! [SY156: $i] :
              ~ ( ~ ( ~ ( in @ SY156 @ SV45 )
                    | ~ ( ~ ( in @ SY156 @ SV22 )
                        | ~ ( in @ SY156 @ SV40 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY156 @ SV22 )
                          | ~ ( in @ SY156 @ SV40 ) )
                    | ( in @ SY156 @ SV45 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[402]) ).

thf(430,plain,
    ! [SV40: $i,SV22: $i,SV45: $i] :
      ( ( ( ! [SY157: $i] :
              ~ ( ~ ( ~ ( in @ SY157 @ SV45 )
                    | ~ ( ~ ( in @ SY157 @ SV22 )
                        | ~ ( in @ SY157 @ SV40 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY157 @ SV22 )
                          | ~ ( in @ SY157 @ SV40 ) )
                    | ( in @ SY157 @ SV45 ) ) ) )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[403]) ).

thf(431,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
          | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
              | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) ) )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[404]) ).

thf(432,plain,
    ! [SV3: $i,SV25: $i,SV49: $i] :
      ( ( ( ~ ( ~ ( in @ SV49 @ SV25 )
              | ( subset @ SV49 @ SV3 ) )
          | ~ ( ~ ( subset @ SV49 @ SV3 )
              | ( in @ SV49 @ SV25 ) ) )
        = $false )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[407]) ).

thf(433,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
              | ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 ) )
          | ~ ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
              | ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[408]) ).

thf(434,plain,
    ! [SV27: $i,SV5: $i,SV42: $i,SV54: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV54 @ SV42 )
                  | ~ ( ~ ( in @ SV54 @ SV5 )
                      | ~ ~ ( in @ SV54 @ SV27 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV54 @ SV5 )
                        | ~ ~ ( in @ SV54 @ SV27 ) )
                  | ( in @ SV54 @ SV42 ) ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[409]) ).

thf(435,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
                  | ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                      | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                        | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
                  | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) ) )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[410]) ).

thf(436,plain,
    ! [SV46: $i,SV6: $i,SV50: $i] :
      ( ( ( ~ ( element @ SV50 @ SV6 ) )
        = $true )
      | ( ( ~ ~ ( in @ SV50 @ SV46 )
          | ( in @ SV50 @ ( subset_complement @ SV6 @ SV46 ) ) )
        = $true )
      | ( ( element @ SV46 @ ( powerset @ SV6 ) )
        = $false )
      | ( ( SV6 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[411]) ).

thf(437,plain,
    ! [SV28: $i,SV7: $i,SV43: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV55 @ SV43 )
                  | ( SV55 = SV7 )
                  | ( SV55 = SV28 ) )
              | ~ ( ~ ( ( SV55 = SV7 )
                      | ( SV55 = SV28 ) )
                  | ( in @ SV55 @ SV43 ) ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[412]) ).

thf(438,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV7 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV28 ) )
              | ~ ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                        = SV7 )
                      | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                        = SV28 ) )
                  | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) ) ) )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[413]) ).

thf(439,plain,
    ! [SV30: $i,SV9: $i,SV51: $i] :
      ( ( ( ~ ( in @ SV51 @ SV9 ) )
        = $true )
      | ( ( in @ SV51 @ SV30 )
        = $true )
      | ( ( subset @ SV9 @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[414]) ).

thf(440,plain,
    ! [SV9: $i,SV30: $i] :
      ( ( ( ~ ( in @ ( sK10_SY132 @ SV30 @ SV9 ) @ SV9 ) )
        = $false )
      | ( ( subset @ SV9 @ SV30 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[415]) ).

thf(441,plain,
    ! [SV9: $i,SV30: $i] :
      ( ( ( in @ ( sK10_SY132 @ SV30 @ SV9 ) @ SV30 )
        = $false )
      | ( ( subset @ SV9 @ SV30 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[415]) ).

thf(442,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( ~ ( element @ SV32 @ SV11 )
              | ( in @ SV32 @ SV11 ) )
          | ~ ( ~ ( in @ SV32 @ SV11 )
              | ( element @ SV32 @ SV11 ) ) )
        = $false )
      | ( ( empty @ SV11 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[416]) ).

thf(443,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( ~ ( element @ SV32 @ SV11 )
              | ( empty @ SV32 ) ) )
        = $false )
      | ( ( empty @ SV11 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[417]) ).

thf(444,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( ~ ( empty @ SV32 )
              | ( element @ SV32 @ SV11 ) ) )
        = $false )
      | ( ( empty @ SV11 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[417]) ).

thf(445,plain,
    ! [SV33: $i,SV12: $i,SV44: $i,SV56: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV56 @ SV44 )
                  | ( in @ SV56 @ SV12 )
                  | ( in @ SV56 @ SV33 ) )
              | ~ ( ~ ( ( in @ SV56 @ SV12 )
                      | ( in @ SV56 @ SV33 ) )
                  | ( in @ SV56 @ SV44 ) ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[418]) ).

thf(446,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
              | ~ ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                      | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) ) ) )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[419]) ).

thf(447,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( in @ SV52 @ SV34 )
              | ~ ! [SY159: $i] :
                    ~ ~ ( ~ ( in @ SV52 @ SY159 )
                        | ~ ( in @ SY159 @ SV15 ) ) )
          | ~ ( ~ ~ ! [SY160: $i] :
                      ~ ~ ( ~ ( in @ SV52 @ SY160 )
                          | ~ ( in @ SY160 @ SV15 ) )
              | ( in @ SV52 @ SV34 ) ) )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[422]) ).

thf(448,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
              | ~ ! [SY161: $i] :
                    ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY161 )
                        | ~ ( in @ SY161 @ SV15 ) ) )
          | ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[423]) ).

thf(449,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $false )
      | ( ( ~ ! [SY142: $i] :
                ~ ~ ( ~ ( in @ SY142 @ SV17 )
                    | ~ ( in @ SY142 @ SV36 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[424]) ).

thf(450,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ( ~ ! [SY143: $i] :
                ~ ~ ( ~ ( in @ SY143 @ SV17 )
                    | ~ ( in @ SY143 @ SV36 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[425]) ).

thf(451,plain,
    ! [SV18: $i,SV37: $i,SV53: $i] :
      ( ( ( ~ ( ~ ( in @ SV53 @ SV37 )
              | ( SV53 = SV18 ) )
          | ~ ( ( SV53 != SV18 )
              | ( in @ SV53 @ SV37 ) ) )
        = $false )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[426]) ).

thf(452,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
              | ( ( sK12_SY145 @ SV18 @ SV37 )
                = SV18 ) )
          | ~ ( ( ( sK12_SY145 @ SV18 @ SV37 )
               != SV18 )
              | ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[427]) ).

thf(453,plain,
    ! [SV19: $i] :
      ( ( ( ~ ( element @ ( sK7_SY112 @ SV19 ) @ ( powerset @ SV19 ) ) )
        = $false )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[428]) ).

thf(454,plain,
    ! [SV19: $i] :
      ( ( ( ~ ~ ( empty @ ( sK7_SY112 @ SV19 ) ) )
        = $false )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[428]) ).

thf(455,plain,
    ! [SV40: $i,SV22: $i,SV45: $i,SV57: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV57 @ SV45 )
                  | ~ ( ~ ( in @ SV57 @ SV22 )
                      | ~ ( in @ SV57 @ SV40 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV57 @ SV22 )
                        | ~ ( in @ SV57 @ SV40 ) )
                  | ( in @ SV57 @ SV45 ) ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[429]) ).

thf(456,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
                  | ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                      | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                        | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
                  | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) ) )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[430]) ).

thf(457,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
              | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) ) )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[431]) ).

thf(458,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
              | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) ) )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[431]) ).

thf(459,plain,
    ! [SV3: $i,SV25: $i,SV49: $i] :
      ( ( ( ~ ( ~ ( in @ SV49 @ SV25 )
              | ( subset @ SV49 @ SV3 ) ) )
        = $false )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[432]) ).

thf(460,plain,
    ! [SV25: $i,SV3: $i,SV49: $i] :
      ( ( ( ~ ( ~ ( subset @ SV49 @ SV3 )
              | ( in @ SV49 @ SV25 ) ) )
        = $false )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[432]) ).

thf(461,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
              | ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 ) ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
              | ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[433]) ).

thf(462,plain,
    ! [SV27: $i,SV5: $i,SV42: $i,SV54: $i] :
      ( ( ( ~ ( ~ ( in @ SV54 @ SV42 )
              | ~ ( ~ ( in @ SV54 @ SV5 )
                  | ~ ~ ( in @ SV54 @ SV27 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV54 @ SV5 )
                    | ~ ~ ( in @ SV54 @ SV27 ) )
              | ( in @ SV54 @ SV42 ) ) )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[434]) ).

thf(463,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
              | ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                  | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[435]) ).

thf(464,plain,
    ! [SV46: $i,SV6: $i,SV50: $i] :
      ( ( ( element @ SV50 @ SV6 )
        = $false )
      | ( ( ~ ~ ( in @ SV50 @ SV46 )
          | ( in @ SV50 @ ( subset_complement @ SV6 @ SV46 ) ) )
        = $true )
      | ( ( element @ SV46 @ ( powerset @ SV6 ) )
        = $false )
      | ( ( SV6 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[436]) ).

thf(465,plain,
    ! [SV28: $i,SV7: $i,SV43: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( in @ SV55 @ SV43 )
              | ( SV55 = SV7 )
              | ( SV55 = SV28 ) )
          | ~ ( ~ ( ( SV55 = SV7 )
                  | ( SV55 = SV28 ) )
              | ( in @ SV55 @ SV43 ) ) )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[437]) ).

thf(466,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV7 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV28 ) )
          | ~ ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV7 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV28 ) )
              | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[438]) ).

thf(467,plain,
    ! [SV30: $i,SV9: $i,SV51: $i] :
      ( ( ( in @ SV51 @ SV9 )
        = $false )
      | ( ( in @ SV51 @ SV30 )
        = $true )
      | ( ( subset @ SV9 @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[439]) ).

thf(468,plain,
    ! [SV9: $i,SV30: $i] :
      ( ( ( in @ ( sK10_SY132 @ SV30 @ SV9 ) @ SV9 )
        = $true )
      | ( ( subset @ SV9 @ SV30 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[440]) ).

thf(469,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( ~ ( element @ SV32 @ SV11 )
              | ( in @ SV32 @ SV11 ) ) )
        = $false )
      | ( ( empty @ SV11 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[442]) ).

thf(470,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( ~ ( in @ SV32 @ SV11 )
              | ( element @ SV32 @ SV11 ) ) )
        = $false )
      | ( ( empty @ SV11 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[442]) ).

thf(471,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( element @ SV32 @ SV11 )
          | ( empty @ SV32 ) )
        = $true )
      | ( ( empty @ SV11 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[443]) ).

thf(472,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( empty @ SV32 )
          | ( element @ SV32 @ SV11 ) )
        = $true )
      | ( ( empty @ SV11 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[444]) ).

thf(473,plain,
    ! [SV33: $i,SV12: $i,SV44: $i,SV56: $i] :
      ( ( ( ~ ( ~ ( in @ SV56 @ SV44 )
              | ( in @ SV56 @ SV12 )
              | ( in @ SV56 @ SV33 ) )
          | ~ ( ~ ( ( in @ SV56 @ SV12 )
                  | ( in @ SV56 @ SV33 ) )
              | ( in @ SV56 @ SV44 ) ) )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[445]) ).

thf(474,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
          | ~ ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[446]) ).

thf(475,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( in @ SV52 @ SV34 )
              | ~ ! [SY159: $i] :
                    ~ ~ ( ~ ( in @ SV52 @ SY159 )
                        | ~ ( in @ SY159 @ SV15 ) ) ) )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[447]) ).

thf(476,plain,
    ! [SV34: $i,SV15: $i,SV52: $i] :
      ( ( ( ~ ( ~ ~ ! [SY160: $i] :
                      ~ ~ ( ~ ( in @ SV52 @ SY160 )
                          | ~ ( in @ SY160 @ SV15 ) )
              | ( in @ SV52 @ SV34 ) ) )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[447]) ).

thf(477,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
              | ~ ! [SY161: $i] :
                    ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY161 )
                        | ~ ( in @ SY161 @ SV15 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[448]) ).

thf(478,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ( disjoint @ SV17 @ SV36 )
        = $true )
      | ( ( ~ ! [SY142: $i] :
                ~ ~ ( ~ ( in @ SY142 @ SV17 )
                    | ~ ( in @ SY142 @ SV36 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[449]) ).

thf(479,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ( ! [SY143: $i] :
              ~ ~ ( ~ ( in @ SY143 @ SV17 )
                  | ~ ( in @ SY143 @ SV36 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[450]) ).

thf(480,plain,
    ! [SV18: $i,SV37: $i,SV53: $i] :
      ( ( ( ~ ( ~ ( in @ SV53 @ SV37 )
              | ( SV53 = SV18 ) ) )
        = $false )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[451]) ).

thf(481,plain,
    ! [SV37: $i,SV18: $i,SV53: $i] :
      ( ( ( ~ ( ( SV53 != SV18 )
              | ( in @ SV53 @ SV37 ) ) )
        = $false )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[451]) ).

thf(482,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
              | ( ( sK12_SY145 @ SV18 @ SV37 )
                = SV18 ) ) )
        = $true )
      | ( ( ~ ( ( ( sK12_SY145 @ SV18 @ SV37 )
               != SV18 )
              | ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[452]) ).

thf(483,plain,
    ! [SV19: $i] :
      ( ( ( element @ ( sK7_SY112 @ SV19 ) @ ( powerset @ SV19 ) )
        = $true )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[453]) ).

thf(484,plain,
    ! [SV19: $i] :
      ( ( ( ~ ( empty @ ( sK7_SY112 @ SV19 ) ) )
        = $true )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[454]) ).

thf(485,plain,
    ! [SV40: $i,SV22: $i,SV45: $i,SV57: $i] :
      ( ( ( ~ ( ~ ( in @ SV57 @ SV45 )
              | ~ ( ~ ( in @ SV57 @ SV22 )
                  | ~ ( in @ SV57 @ SV40 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV57 @ SV22 )
                    | ~ ( in @ SV57 @ SV40 ) )
              | ( in @ SV57 @ SV45 ) ) )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[455]) ).

thf(486,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
              | ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                  | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[456]) ).

thf(487,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
              | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) ) )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[457]) ).

thf(488,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
          | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) )
        = $false )
      | ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
        = $false )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[458]) ).

thf(489,plain,
    ! [SV3: $i,SV25: $i,SV49: $i] :
      ( ( ( ~ ( in @ SV49 @ SV25 )
          | ( subset @ SV49 @ SV3 ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[459]) ).

thf(490,plain,
    ! [SV25: $i,SV3: $i,SV49: $i] :
      ( ( ( ~ ( subset @ SV49 @ SV3 )
          | ( in @ SV49 @ SV25 ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[460]) ).

thf(491,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( ~ ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
          | ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
              | ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[461]) ).

thf(492,plain,
    ! [SV27: $i,SV5: $i,SV42: $i,SV54: $i] :
      ( ( ( ~ ( ~ ( in @ SV54 @ SV42 )
              | ~ ( ~ ( in @ SV54 @ SV5 )
                  | ~ ~ ( in @ SV54 @ SV27 ) ) ) )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[462]) ).

thf(493,plain,
    ! [SV42: $i,SV27: $i,SV5: $i,SV54: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV54 @ SV5 )
                    | ~ ~ ( in @ SV54 @ SV27 ) )
              | ( in @ SV54 @ SV42 ) ) )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[462]) ).

thf(494,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
              | ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                  | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[463]) ).

thf(495,plain,
    ! [SV6: $i,SV46: $i,SV50: $i] :
      ( ( ( ~ ~ ( in @ SV50 @ SV46 ) )
        = $true )
      | ( ( in @ SV50 @ ( subset_complement @ SV6 @ SV46 ) )
        = $true )
      | ( ( element @ SV50 @ SV6 )
        = $false )
      | ( ( element @ SV46 @ ( powerset @ SV6 ) )
        = $false )
      | ( ( SV6 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[464]) ).

thf(496,plain,
    ! [SV28: $i,SV7: $i,SV43: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( in @ SV55 @ SV43 )
              | ( SV55 = SV7 )
              | ( SV55 = SV28 ) ) )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[465]) ).

thf(497,plain,
    ! [SV43: $i,SV28: $i,SV7: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( ( SV55 = SV7 )
                  | ( SV55 = SV28 ) )
              | ( in @ SV55 @ SV43 ) ) )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[465]) ).

thf(498,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV7 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV28 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV7 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV28 ) )
              | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[466]) ).

thf(499,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( element @ SV32 @ SV11 )
          | ( in @ SV32 @ SV11 ) )
        = $true )
      | ( ( empty @ SV11 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[469]) ).

thf(500,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( in @ SV32 @ SV11 )
          | ( element @ SV32 @ SV11 ) )
        = $true )
      | ( ( empty @ SV11 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[470]) ).

thf(501,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( element @ SV32 @ SV11 ) )
        = $true )
      | ( ( empty @ SV32 )
        = $true )
      | ( ( empty @ SV11 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[471]) ).

thf(502,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( empty @ SV32 ) )
        = $true )
      | ( ( element @ SV32 @ SV11 )
        = $true )
      | ( ( empty @ SV11 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[472]) ).

thf(503,plain,
    ! [SV33: $i,SV12: $i,SV44: $i,SV56: $i] :
      ( ( ( ~ ( ~ ( in @ SV56 @ SV44 )
              | ( in @ SV56 @ SV12 )
              | ( in @ SV56 @ SV33 ) ) )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[473]) ).

thf(504,plain,
    ! [SV44: $i,SV33: $i,SV12: $i,SV56: $i] :
      ( ( ( ~ ( ~ ( ( in @ SV56 @ SV12 )
                  | ( in @ SV56 @ SV33 ) )
              | ( in @ SV56 @ SV44 ) ) )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[473]) ).

thf(505,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[474]) ).

thf(506,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV34 )
          | ~ ! [SY159: $i] :
                ~ ~ ( ~ ( in @ SV52 @ SY159 )
                    | ~ ( in @ SY159 @ SV15 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[475]) ).

thf(507,plain,
    ! [SV34: $i,SV15: $i,SV52: $i] :
      ( ( ( ~ ~ ! [SY160: $i] :
                  ~ ~ ( ~ ( in @ SV52 @ SY160 )
                      | ~ ( in @ SY160 @ SV15 ) )
          | ( in @ SV52 @ SV34 ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[476]) ).

thf(508,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
          | ~ ! [SY161: $i] :
                ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY161 )
                    | ~ ( in @ SY161 @ SV15 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[477]) ).

thf(509,plain,
    ! [SV36: $i,SV17: $i] :
      ( ( ( ! [SY142: $i] :
              ~ ~ ( ~ ( in @ SY142 @ SV17 )
                  | ~ ( in @ SY142 @ SV36 ) ) )
        = $false )
      | ( ( disjoint @ SV17 @ SV36 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[478]) ).

thf(510,plain,
    ! [SV36: $i,SV17: $i,SV58: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV58 @ SV17 )
                | ~ ( in @ SV58 @ SV36 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[479]) ).

thf(511,plain,
    ! [SV18: $i,SV37: $i,SV53: $i] :
      ( ( ( ~ ( in @ SV53 @ SV37 )
          | ( SV53 = SV18 ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[480]) ).

thf(512,plain,
    ! [SV37: $i,SV18: $i,SV53: $i] :
      ( ( ( ( SV53 != SV18 )
          | ( in @ SV53 @ SV37 ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[481]) ).

thf(513,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ~ ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
          | ( ( sK12_SY145 @ SV18 @ SV37 )
            = SV18 ) )
        = $false )
      | ( ( ~ ( ( ( sK12_SY145 @ SV18 @ SV37 )
               != SV18 )
              | ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[482]) ).

thf(514,plain,
    ! [SV19: $i] :
      ( ( ( empty @ ( sK7_SY112 @ SV19 ) )
        = $false )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[484]) ).

thf(515,plain,
    ! [SV40: $i,SV22: $i,SV45: $i,SV57: $i] :
      ( ( ( ~ ( ~ ( in @ SV57 @ SV45 )
              | ~ ( ~ ( in @ SV57 @ SV22 )
                  | ~ ( in @ SV57 @ SV40 ) ) ) )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[485]) ).

thf(516,plain,
    ! [SV45: $i,SV40: $i,SV22: $i,SV57: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV57 @ SV22 )
                    | ~ ( in @ SV57 @ SV40 ) )
              | ( in @ SV57 @ SV45 ) ) )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[485]) ).

thf(517,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
              | ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                  | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[486]) ).

thf(518,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
          | ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 ) )
        = $false )
      | ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[487]) ).

thf(519,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 ) )
        = $false )
      | ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
        = $false )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[488]) ).

thf(520,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
        = $false )
      | ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
        = $false )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[488]) ).

thf(521,plain,
    ! [SV3: $i,SV25: $i,SV49: $i] :
      ( ( ( ~ ( in @ SV49 @ SV25 ) )
        = $true )
      | ( ( subset @ SV49 @ SV3 )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[489]) ).

thf(522,plain,
    ! [SV25: $i,SV3: $i,SV49: $i] :
      ( ( ( ~ ( subset @ SV49 @ SV3 ) )
        = $true )
      | ( ( in @ SV49 @ SV25 )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[490]) ).

thf(523,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( ~ ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
              | ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[491]) ).

thf(524,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
              | ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[491]) ).

thf(525,plain,
    ! [SV27: $i,SV5: $i,SV42: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV42 )
          | ~ ( ~ ( in @ SV54 @ SV5 )
              | ~ ~ ( in @ SV54 @ SV27 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[492]) ).

thf(526,plain,
    ! [SV42: $i,SV27: $i,SV5: $i,SV54: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV54 @ SV5 )
                | ~ ~ ( in @ SV54 @ SV27 ) )
          | ( in @ SV54 @ SV42 ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[493]) ).

thf(527,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
          | ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
              | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[494]) ).

thf(528,plain,
    ! [SV6: $i,SV46: $i,SV50: $i] :
      ( ( ( ~ ( in @ SV50 @ SV46 ) )
        = $false )
      | ( ( in @ SV50 @ ( subset_complement @ SV6 @ SV46 ) )
        = $true )
      | ( ( element @ SV50 @ SV6 )
        = $false )
      | ( ( element @ SV46 @ ( powerset @ SV6 ) )
        = $false )
      | ( ( SV6 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[495]) ).

thf(529,plain,
    ! [SV28: $i,SV7: $i,SV43: $i,SV55: $i] :
      ( ( ( ~ ( in @ SV55 @ SV43 )
          | ( SV55 = SV7 )
          | ( SV55 = SV28 ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[496]) ).

thf(530,plain,
    ! [SV43: $i,SV28: $i,SV7: $i,SV55: $i] :
      ( ( ( ~ ( ( SV55 = SV7 )
              | ( SV55 = SV28 ) )
          | ( in @ SV55 @ SV43 ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[497]) ).

thf(531,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
          | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV7 )
          | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV28 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV7 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV28 ) )
              | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[498]) ).

thf(532,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( element @ SV32 @ SV11 ) )
        = $true )
      | ( ( in @ SV32 @ SV11 )
        = $true )
      | ( ( empty @ SV11 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[499]) ).

thf(533,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( ~ ( in @ SV32 @ SV11 ) )
        = $true )
      | ( ( element @ SV32 @ SV11 )
        = $true )
      | ( ( empty @ SV11 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[500]) ).

thf(534,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( element @ SV32 @ SV11 )
        = $false )
      | ( ( empty @ SV32 )
        = $true )
      | ( ( empty @ SV11 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[501]) ).

thf(535,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( empty @ SV32 )
        = $false )
      | ( ( element @ SV32 @ SV11 )
        = $true )
      | ( ( empty @ SV11 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[502]) ).

thf(536,plain,
    ! [SV33: $i,SV12: $i,SV44: $i,SV56: $i] :
      ( ( ( ~ ( in @ SV56 @ SV44 )
          | ( in @ SV56 @ SV12 )
          | ( in @ SV56 @ SV33 ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[503]) ).

thf(537,plain,
    ! [SV44: $i,SV33: $i,SV12: $i,SV56: $i] :
      ( ( ( ~ ( ( in @ SV56 @ SV12 )
              | ( in @ SV56 @ SV33 ) )
          | ( in @ SV56 @ SV44 ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[504]) ).

thf(538,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
          | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
          | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[505]) ).

thf(539,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV34 ) )
        = $true )
      | ( ( ~ ! [SY159: $i] :
                ~ ~ ( ~ ( in @ SV52 @ SY159 )
                    | ~ ( in @ SY159 @ SV15 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[506]) ).

thf(540,plain,
    ! [SV34: $i,SV15: $i,SV52: $i] :
      ( ( ( ~ ~ ! [SY160: $i] :
                  ~ ~ ( ~ ( in @ SV52 @ SY160 )
                      | ~ ( in @ SY160 @ SV15 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[507]) ).

thf(541,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[508]) ).

thf(542,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ! [SY161: $i] :
                ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY161 )
                    | ~ ( in @ SY161 @ SV15 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[508]) ).

thf(543,plain,
    ! [SV17: $i,SV36: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV17 )
                | ~ ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV36 ) ) )
        = $false )
      | ( ( disjoint @ SV17 @ SV36 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[509]) ).

thf(544,plain,
    ! [SV36: $i,SV17: $i,SV58: $i] :
      ( ( ( ~ ( ~ ( in @ SV58 @ SV17 )
              | ~ ( in @ SV58 @ SV36 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[510]) ).

thf(545,plain,
    ! [SV18: $i,SV37: $i,SV53: $i] :
      ( ( ( ~ ( in @ SV53 @ SV37 ) )
        = $true )
      | ( ( SV53 = SV18 )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[511]) ).

thf(546,plain,
    ! [SV37: $i,SV18: $i,SV53: $i] :
      ( ( ( SV53 != SV18 )
        = $true )
      | ( ( in @ SV53 @ SV37 )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[512]) ).

thf(547,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ~ ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) )
        = $false )
      | ( ( ~ ( ( ( sK12_SY145 @ SV18 @ SV37 )
               != SV18 )
              | ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[513]) ).

thf(548,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ( sK12_SY145 @ SV18 @ SV37 )
          = SV18 )
        = $false )
      | ( ( ~ ( ( ( sK12_SY145 @ SV18 @ SV37 )
               != SV18 )
              | ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[513]) ).

thf(549,plain,
    ! [SV40: $i,SV22: $i,SV45: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV45 )
          | ~ ( ~ ( in @ SV57 @ SV22 )
              | ~ ( in @ SV57 @ SV40 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[515]) ).

thf(550,plain,
    ! [SV45: $i,SV40: $i,SV22: $i,SV57: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV57 @ SV22 )
                | ~ ( in @ SV57 @ SV40 ) )
          | ( in @ SV57 @ SV45 ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[516]) ).

thf(551,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
          | ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
              | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[517]) ).

thf(552,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( ~ ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 ) )
        = $false )
      | ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[518]) ).

thf(553,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
        = $false )
      | ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[518]) ).

thf(554,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
        = $true )
      | ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
        = $false )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[519]) ).

thf(555,plain,
    ! [SV3: $i,SV25: $i,SV49: $i] :
      ( ( ( in @ SV49 @ SV25 )
        = $false )
      | ( ( subset @ SV49 @ SV3 )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[521]) ).

thf(556,plain,
    ! [SV25: $i,SV3: $i,SV49: $i] :
      ( ( ( subset @ SV49 @ SV3 )
        = $false )
      | ( ( in @ SV49 @ SV25 )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[522]) ).

thf(557,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
              | ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) ) )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[523]) ).

thf(558,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
          | ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) )
        = $false )
      | ( ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
        = $false )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[524]) ).

thf(559,plain,
    ! [SV27: $i,SV5: $i,SV42: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV42 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV54 @ SV5 )
              | ~ ~ ( in @ SV54 @ SV27 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[525]) ).

thf(560,plain,
    ! [SV42: $i,SV27: $i,SV5: $i,SV54: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV54 @ SV5 )
                | ~ ~ ( in @ SV54 @ SV27 ) ) )
        = $true )
      | ( ( in @ SV54 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[526]) ).

thf(561,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[527]) ).

thf(562,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
              | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[527]) ).

thf(563,plain,
    ! [SV6: $i,SV46: $i,SV50: $i] :
      ( ( ( in @ SV50 @ SV46 )
        = $true )
      | ( ( in @ SV50 @ ( subset_complement @ SV6 @ SV46 ) )
        = $true )
      | ( ( element @ SV50 @ SV6 )
        = $false )
      | ( ( element @ SV46 @ ( powerset @ SV6 ) )
        = $false )
      | ( ( SV6 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[528]) ).

thf(564,plain,
    ! [SV28: $i,SV7: $i,SV43: $i,SV55: $i] :
      ( ( ( ~ ( in @ SV55 @ SV43 ) )
        = $true )
      | ( ( ( SV55 = SV7 )
          | ( SV55 = SV28 ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[529]) ).

thf(565,plain,
    ! [SV43: $i,SV28: $i,SV7: $i,SV55: $i] :
      ( ( ( ~ ( ( SV55 = SV7 )
              | ( SV55 = SV28 ) ) )
        = $true )
      | ( ( in @ SV55 @ SV43 )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[530]) ).

thf(566,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV7 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV28 ) )
              | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[531]) ).

thf(567,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV7 )
          | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV28 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV7 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV28 ) )
              | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[531]) ).

thf(568,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( element @ SV32 @ SV11 )
        = $false )
      | ( ( in @ SV32 @ SV11 )
        = $true )
      | ( ( empty @ SV11 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[532]) ).

thf(569,plain,
    ! [SV11: $i,SV32: $i] :
      ( ( ( in @ SV32 @ SV11 )
        = $false )
      | ( ( element @ SV32 @ SV11 )
        = $true )
      | ( ( empty @ SV11 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[533]) ).

thf(570,plain,
    ! [SV33: $i,SV12: $i,SV44: $i,SV56: $i] :
      ( ( ( ~ ( in @ SV56 @ SV44 ) )
        = $true )
      | ( ( ( in @ SV56 @ SV12 )
          | ( in @ SV56 @ SV33 ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[536]) ).

thf(571,plain,
    ! [SV44: $i,SV33: $i,SV12: $i,SV56: $i] :
      ( ( ( ~ ( ( in @ SV56 @ SV12 )
              | ( in @ SV56 @ SV33 ) ) )
        = $true )
      | ( ( in @ SV56 @ SV44 )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[537]) ).

thf(572,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[538]) ).

thf(573,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
          | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[538]) ).

thf(574,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( in @ SV52 @ SV34 )
        = $false )
      | ( ( ~ ! [SY159: $i] :
                ~ ~ ( ~ ( in @ SV52 @ SY159 )
                    | ~ ( in @ SY159 @ SV15 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[539]) ).

thf(575,plain,
    ! [SV34: $i,SV15: $i,SV52: $i] :
      ( ( ( ~ ! [SY160: $i] :
                ~ ~ ( ~ ( in @ SV52 @ SY160 )
                    | ~ ( in @ SY160 @ SV15 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[540]) ).

thf(576,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[541]) ).

thf(577,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ! [SY161: $i] :
              ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY161 )
                  | ~ ( in @ SY161 @ SV15 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[542]) ).

thf(578,plain,
    ! [SV17: $i,SV36: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV17 )
              | ~ ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV36 ) ) )
        = $true )
      | ( ( disjoint @ SV17 @ SV36 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[543]) ).

thf(579,plain,
    ! [SV36: $i,SV17: $i,SV58: $i] :
      ( ( ( ~ ( in @ SV58 @ SV17 )
          | ~ ( in @ SV58 @ SV36 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[544]) ).

thf(580,plain,
    ! [SV18: $i,SV37: $i,SV53: $i] :
      ( ( ( in @ SV53 @ SV37 )
        = $false )
      | ( ( SV53 = SV18 )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[545]) ).

thf(581,plain,
    ! [SV37: $i,SV18: $i,SV53: $i] :
      ( ( ( SV53 = SV18 )
        = $false )
      | ( ( in @ SV53 @ SV37 )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[546]) ).

thf(582,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
        = $true )
      | ( ( ~ ( ( ( sK12_SY145 @ SV18 @ SV37 )
               != SV18 )
              | ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) ) )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[547]) ).

thf(583,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ( ( sK12_SY145 @ SV18 @ SV37 )
           != SV18 )
          | ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) )
        = $false )
      | ( ( ( sK12_SY145 @ SV18 @ SV37 )
          = SV18 )
        = $false )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[548]) ).

thf(584,plain,
    ! [SV40: $i,SV22: $i,SV45: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV45 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV57 @ SV22 )
              | ~ ( in @ SV57 @ SV40 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[549]) ).

thf(585,plain,
    ! [SV45: $i,SV40: $i,SV22: $i,SV57: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV57 @ SV22 )
                | ~ ( in @ SV57 @ SV40 ) ) )
        = $true )
      | ( ( in @ SV57 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[550]) ).

thf(586,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[551]) ).

thf(587,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
              | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[551]) ).

thf(588,plain,
    ! [SV23: $i,SV41: $i] :
      ( ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV41 )
        = $true )
      | ( ( in @ ( sK6_SY149 @ SV41 @ SV23 ) @ SV23 )
        = $true )
      | ( ( SV23 = SV41 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[552]) ).

thf(589,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
          | ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 ) )
        = $false )
      | ( ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[557]) ).

thf(590,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 ) )
        = $false )
      | ( ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
        = $false )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[558]) ).

thf(591,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
        = $false )
      | ( ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
        = $false )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[558]) ).

thf(592,plain,
    ! [SV27: $i,SV5: $i,SV42: $i,SV54: $i] :
      ( ( ( in @ SV54 @ SV42 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV54 @ SV5 )
              | ~ ~ ( in @ SV54 @ SV27 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[559]) ).

thf(593,plain,
    ! [SV42: $i,SV27: $i,SV5: $i,SV54: $i] :
      ( ( ( ~ ( ~ ( in @ SV54 @ SV5 )
              | ~ ~ ( in @ SV54 @ SV27 ) ) )
        = $false )
      | ( ( in @ SV54 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[560]) ).

thf(594,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[561]) ).

thf(595,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
          | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[562]) ).

thf(596,plain,
    ! [SV28: $i,SV7: $i,SV43: $i,SV55: $i] :
      ( ( ( in @ SV55 @ SV43 )
        = $false )
      | ( ( ( SV55 = SV7 )
          | ( SV55 = SV28 ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[564]) ).

thf(597,plain,
    ! [SV43: $i,SV28: $i,SV7: $i,SV55: $i] :
      ( ( ( ( SV55 = SV7 )
          | ( SV55 = SV28 ) )
        = $false )
      | ( ( in @ SV55 @ SV43 )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[565]) ).

thf(598,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV7 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV28 ) )
              | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[566]) ).

thf(599,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV7 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV7 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV28 ) )
              | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[567]) ).

thf(600,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV28 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV7 )
                  | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                    = SV28 ) )
              | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[567]) ).

thf(601,plain,
    ! [SV33: $i,SV12: $i,SV44: $i,SV56: $i] :
      ( ( ( in @ SV56 @ SV44 )
        = $false )
      | ( ( ( in @ SV56 @ SV12 )
          | ( in @ SV56 @ SV33 ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[570]) ).

thf(602,plain,
    ! [SV44: $i,SV33: $i,SV12: $i,SV56: $i] :
      ( ( ( ( in @ SV56 @ SV12 )
          | ( in @ SV56 @ SV33 ) )
        = $false )
      | ( ( in @ SV56 @ SV44 )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[571]) ).

thf(603,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[572]) ).

thf(604,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[573]) ).

thf(605,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
                  | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) ) )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[573]) ).

thf(606,plain,
    ! [SV34: $i,SV15: $i,SV52: $i] :
      ( ( ( ! [SY159: $i] :
              ~ ~ ( ~ ( in @ SV52 @ SY159 )
                  | ~ ( in @ SY159 @ SV15 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV34 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[574]) ).

thf(607,plain,
    ! [SV34: $i,SV15: $i,SV52: $i] :
      ( ( ( ! [SY160: $i] :
              ~ ~ ( ~ ( in @ SV52 @ SY160 )
                  | ~ ( in @ SY160 @ SV15 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[575]) ).

thf(608,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ~ ! [SY162: $i] :
                  ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                      | ~ ( in @ SY162 @ SV15 ) )
          | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[576]) ).

thf(609,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
                | ~ ( in @ SV59 @ SV15 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[577]) ).

thf(610,plain,
    ! [SV17: $i,SV36: $i] :
      ( ( ( ~ ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV17 )
          | ~ ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV36 ) )
        = $false )
      | ( ( disjoint @ SV17 @ SV36 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[578]) ).

thf(611,plain,
    ! [SV36: $i,SV17: $i,SV58: $i] :
      ( ( ( ~ ( in @ SV58 @ SV17 ) )
        = $true )
      | ( ( ~ ( in @ SV58 @ SV36 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[579]) ).

thf(612,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ( ( sK12_SY145 @ SV18 @ SV37 )
           != SV18 )
          | ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 ) )
        = $false )
      | ( ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[582]) ).

thf(613,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ( sK12_SY145 @ SV18 @ SV37 )
         != SV18 )
        = $false )
      | ( ( ( sK12_SY145 @ SV18 @ SV37 )
          = SV18 )
        = $false )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[583]) ).

thf(614,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
        = $false )
      | ( ( ( sK12_SY145 @ SV18 @ SV37 )
          = SV18 )
        = $false )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[583]) ).

thf(615,plain,
    ! [SV40: $i,SV22: $i,SV45: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV45 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV57 @ SV22 )
              | ~ ( in @ SV57 @ SV40 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[584]) ).

thf(616,plain,
    ! [SV45: $i,SV40: $i,SV22: $i,SV57: $i] :
      ( ( ( ~ ( ~ ( in @ SV57 @ SV22 )
              | ~ ( in @ SV57 @ SV40 ) ) )
        = $false )
      | ( ( in @ SV57 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[585]) ).

thf(617,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[586]) ).

thf(618,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
          | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[587]) ).

thf(619,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( ~ ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 ) )
        = $false )
      | ( ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[589]) ).

thf(620,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[589]) ).

thf(621,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
        = $true )
      | ( ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
        = $false )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[590]) ).

thf(622,plain,
    ! [SV42: $i,SV27: $i,SV5: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV5 )
          | ~ ~ ( in @ SV54 @ SV27 ) )
        = $false )
      | ( ( in @ SV54 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[592]) ).

thf(623,plain,
    ! [SV42: $i,SV27: $i,SV5: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV5 )
          | ~ ~ ( in @ SV54 @ SV27 ) )
        = $true )
      | ( ( in @ SV54 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[593]) ).

thf(624,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
          | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[594]) ).

thf(625,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 ) )
        = $true )
      | ( ( ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[595]) ).

thf(626,plain,
    ! [SV43: $i,SV28: $i,SV7: $i,SV55: $i] :
      ( ( ( SV55 = SV7 )
        = $true )
      | ( ( SV55 = SV28 )
        = $true )
      | ( ( in @ SV55 @ SV43 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[596]) ).

thf(627,plain,
    ! [SV28: $i,SV43: $i,SV7: $i,SV55: $i] :
      ( ( ( SV55 = SV7 )
        = $false )
      | ( ( in @ SV55 @ SV43 )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[597]) ).

thf(628,plain,
    ! [SV7: $i,SV43: $i,SV28: $i,SV55: $i] :
      ( ( ( SV55 = SV28 )
        = $false )
      | ( ( in @ SV55 @ SV43 )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[597]) ).

thf(629,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV7 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV28 ) )
          | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) )
        = $false )
      | ( ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[598]) ).

thf(630,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV7 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV28 ) )
          | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) )
        = $false )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV7 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[599]) ).

thf(631,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV7 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV28 ) )
          | ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 ) )
        = $false )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV28 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[600]) ).

thf(632,plain,
    ! [SV44: $i,SV33: $i,SV12: $i,SV56: $i] :
      ( ( ( in @ SV56 @ SV12 )
        = $true )
      | ( ( in @ SV56 @ SV33 )
        = $true )
      | ( ( in @ SV56 @ SV44 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[601]) ).

thf(633,plain,
    ! [SV33: $i,SV44: $i,SV12: $i,SV56: $i] :
      ( ( ( in @ SV56 @ SV12 )
        = $false )
      | ( ( in @ SV56 @ SV44 )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[602]) ).

thf(634,plain,
    ! [SV12: $i,SV44: $i,SV33: $i,SV56: $i] :
      ( ( ( in @ SV56 @ SV33 )
        = $false )
      | ( ( in @ SV56 @ SV44 )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[602]) ).

thf(635,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
          | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) )
        = $false )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[603]) ).

thf(636,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
          | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) )
        = $false )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[604]) ).

thf(637,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
          | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 ) )
        = $false )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[605]) ).

thf(638,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV52 @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) )
                | ~ ( in @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) @ SV15 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV34 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[606]) ).

thf(639,plain,
    ! [SV34: $i,SV15: $i,SV60: $i,SV52: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV52 @ SV60 )
                | ~ ( in @ SV60 @ SV15 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[607]) ).

thf(640,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ~ ! [SY162: $i] :
                  ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                      | ~ ( in @ SY162 @ SV15 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[608]) ).

thf(641,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[608]) ).

thf(642,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
              | ~ ( in @ SV59 @ SV15 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[609]) ).

thf(643,plain,
    ! [SV17: $i,SV36: $i] :
      ( ( ( ~ ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV17 ) )
        = $false )
      | ( ( disjoint @ SV17 @ SV36 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[610]) ).

thf(644,plain,
    ! [SV17: $i,SV36: $i] :
      ( ( ( ~ ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV36 ) )
        = $false )
      | ( ( disjoint @ SV17 @ SV36 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[610]) ).

thf(645,plain,
    ! [SV36: $i,SV17: $i,SV58: $i] :
      ( ( ( in @ SV58 @ SV17 )
        = $false )
      | ( ( ~ ( in @ SV58 @ SV36 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[611]) ).

thf(646,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ( sK12_SY145 @ SV18 @ SV37 )
         != SV18 )
        = $false )
      | ( ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[612]) ).

thf(647,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
        = $false )
      | ( ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[612]) ).

thf(648,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ( sK12_SY145 @ SV18 @ SV37 )
          = SV18 )
        = $true )
      | ( ( ( sK12_SY145 @ SV18 @ SV37 )
          = SV18 )
        = $false )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[613]) ).

thf(649,plain,
    ! [SV45: $i,SV40: $i,SV22: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV22 )
          | ~ ( in @ SV57 @ SV40 ) )
        = $false )
      | ( ( in @ SV57 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[615]) ).

thf(650,plain,
    ! [SV45: $i,SV40: $i,SV22: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV22 )
          | ~ ( in @ SV57 @ SV40 ) )
        = $true )
      | ( ( in @ SV57 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[616]) ).

thf(651,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
          | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[617]) ).

thf(652,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[618]) ).

thf(653,plain,
    ! [SV25: $i,SV3: $i] :
      ( ( ( subset @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV3 )
        = $true )
      | ( ( in @ ( sK9_SY123 @ SV3 @ SV25 ) @ SV25 )
        = $true )
      | ( ( SV25
          = ( powerset @ SV3 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[619]) ).

thf(654,plain,
    ! [SV27: $i,SV42: $i,SV5: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV5 ) )
        = $false )
      | ( ( in @ SV54 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[622]) ).

thf(655,plain,
    ! [SV5: $i,SV42: $i,SV27: $i,SV54: $i] :
      ( ( ( ~ ~ ( in @ SV54 @ SV27 ) )
        = $false )
      | ( ( in @ SV54 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[622]) ).

thf(656,plain,
    ! [SV42: $i,SV27: $i,SV5: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV5 ) )
        = $true )
      | ( ( ~ ~ ( in @ SV54 @ SV27 ) )
        = $true )
      | ( ( in @ SV54 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[623]) ).

thf(657,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[624]) ).

thf(658,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[624]) ).

thf(659,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[625]) ).

thf(660,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV7 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV28 ) ) )
        = $false )
      | ( ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[629]) ).

thf(661,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
        = $false )
      | ( ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[629]) ).

thf(662,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV7 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV28 ) ) )
        = $false )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV7 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[630]) ).

thf(663,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
        = $false )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV7 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[630]) ).

thf(664,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ~ ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV7 )
              | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
                = SV28 ) ) )
        = $false )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV28 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[631]) ).

thf(665,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
        = $false )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV28 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[631]) ).

thf(666,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) ) )
        = $false )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[635]) ).

thf(667,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
        = $false )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[635]) ).

thf(668,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) ) )
        = $false )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[636]) ).

thf(669,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
        = $false )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[636]) ).

thf(670,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ~ ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
              | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) ) )
        = $false )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[637]) ).

thf(671,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
        = $false )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[637]) ).

thf(672,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( in @ SV52 @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) )
              | ~ ( in @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) @ SV15 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV34 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[638]) ).

thf(673,plain,
    ! [SV34: $i,SV15: $i,SV60: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( in @ SV52 @ SV60 )
              | ~ ( in @ SV60 @ SV15 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[639]) ).

thf(674,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ! [SY162: $i] :
                ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                    | ~ ( in @ SY162 @ SV15 ) ) )
        = $true )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[640]) ).

thf(675,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
          | ~ ( in @ SV59 @ SV15 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[642]) ).

thf(676,plain,
    ! [SV17: $i,SV36: $i] :
      ( ( ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV17 )
        = $true )
      | ( ( disjoint @ SV17 @ SV36 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[643]) ).

thf(677,plain,
    ! [SV17: $i,SV36: $i] :
      ( ( ( in @ ( sK17_SY142 @ SV36 @ SV17 ) @ SV36 )
        = $true )
      | ( ( disjoint @ SV17 @ SV36 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[644]) ).

thf(678,plain,
    ! [SV17: $i,SV36: $i,SV58: $i] :
      ( ( ( in @ SV58 @ SV36 )
        = $false )
      | ( ( in @ SV58 @ SV17 )
        = $false )
      | ( ( ~ ( disjoint @ SV17 @ SV36 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[645]) ).

thf(679,plain,
    ! [SV37: $i,SV18: $i] :
      ( ( ( ( sK12_SY145 @ SV18 @ SV37 )
          = SV18 )
        = $true )
      | ( ( in @ ( sK12_SY145 @ SV18 @ SV37 ) @ SV37 )
        = $true )
      | ( ( SV37
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[646]) ).

thf(680,plain,
    ! [SV40: $i,SV45: $i,SV22: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV22 ) )
        = $false )
      | ( ( in @ SV57 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[649]) ).

thf(681,plain,
    ! [SV22: $i,SV45: $i,SV40: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV40 ) )
        = $false )
      | ( ( in @ SV57 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[649]) ).

thf(682,plain,
    ! [SV45: $i,SV40: $i,SV22: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV22 ) )
        = $true )
      | ( ( ~ ( in @ SV57 @ SV40 ) )
        = $true )
      | ( ( in @ SV57 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[650]) ).

thf(683,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[651]) ).

thf(684,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[651]) ).

thf(685,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[652]) ).

thf(686,plain,
    ! [SV27: $i,SV42: $i,SV5: $i,SV54: $i] :
      ( ( ( in @ SV54 @ SV5 )
        = $true )
      | ( ( in @ SV54 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[654]) ).

thf(687,plain,
    ! [SV5: $i,SV42: $i,SV27: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV27 ) )
        = $true )
      | ( ( in @ SV54 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[655]) ).

thf(688,plain,
    ! [SV42: $i,SV27: $i,SV5: $i,SV54: $i] :
      ( ( ( in @ SV54 @ SV5 )
        = $false )
      | ( ( ~ ~ ( in @ SV54 @ SV27 ) )
        = $true )
      | ( ( in @ SV54 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[656]) ).

thf(689,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
              | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) ) )
        = $true )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[657]) ).

thf(690,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[659]) ).

thf(691,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV7 )
          | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV28 ) )
        = $true )
      | ( ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[660]) ).

thf(692,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV7 )
          | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV28 ) )
        = $true )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV7 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[662]) ).

thf(693,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV7 )
          | ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
            = SV28 ) )
        = $true )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV28 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[664]) ).

thf(694,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
          | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
        = $true )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[666]) ).

thf(695,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
          | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
        = $true )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[668]) ).

thf(696,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
          | ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 ) )
        = $true )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[670]) ).

thf(697,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) )
          | ~ ( in @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) @ SV15 ) )
        = $false )
      | ( ( in @ SV52 @ SV34 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[672]) ).

thf(698,plain,
    ! [SV34: $i,SV15: $i,SV60: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV60 )
          | ~ ( in @ SV60 @ SV15 ) )
        = $true )
      | ( ( in @ SV52 @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[673]) ).

thf(699,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ! [SY162: $i] :
              ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                  | ~ ( in @ SY162 @ SV15 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[674]) ).

thf(700,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 ) )
        = $true )
      | ( ( ~ ( in @ SV59 @ SV15 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[675]) ).

thf(701,plain,
    ! [SV58: $i,SV36: $i,SV17: $i] :
      ( ( ( disjoint @ SV17 @ SV36 )
        = $false )
      | ( ( in @ SV58 @ SV17 )
        = $false )
      | ( ( in @ SV58 @ SV36 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[678]) ).

thf(702,plain,
    ! [SV40: $i,SV45: $i,SV22: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV22 )
        = $true )
      | ( ( in @ SV57 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[680]) ).

thf(703,plain,
    ! [SV22: $i,SV45: $i,SV40: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV40 )
        = $true )
      | ( ( in @ SV57 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[681]) ).

thf(704,plain,
    ! [SV45: $i,SV40: $i,SV22: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV22 )
        = $false )
      | ( ( ~ ( in @ SV57 @ SV40 ) )
        = $true )
      | ( ( in @ SV57 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[682]) ).

thf(705,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
              | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) ) )
        = $true )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[683]) ).

thf(706,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                    | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
              | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[685]) ).

thf(707,plain,
    ! [SV5: $i,SV42: $i,SV27: $i,SV54: $i] :
      ( ( ( in @ SV54 @ SV27 )
        = $false )
      | ( ( in @ SV54 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[687]) ).

thf(708,plain,
    ! [SV42: $i,SV5: $i,SV27: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV27 ) )
        = $false )
      | ( ( in @ SV54 @ SV5 )
        = $false )
      | ( ( in @ SV54 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[688]) ).

thf(709,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
          | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[689]) ).

thf(710,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                    | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
              | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[690]) ).

thf(711,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV7 )
        = $true )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV28 )
        = $true )
      | ( ( in @ ( sK14_SY153 @ SV28 @ SV7 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[691]) ).

thf(712,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV7 )
        = $true )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV28 )
        = $true )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV7 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[692]) ).

thf(713,plain,
    ! [SV43: $i,SV7: $i,SV28: $i] :
      ( ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV7 )
        = $true )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV28 )
        = $true )
      | ( ( ( sK14_SY153 @ SV28 @ SV7 @ SV43 )
          = SV28 )
        = $false )
      | ( ( SV43
          = ( unordered_pair @ SV7 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[693]) ).

thf(714,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
        = $true )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 )
        = $true )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV44 )
        = $true )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[694]) ).

thf(715,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
        = $true )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 )
        = $true )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[695]) ).

thf(716,plain,
    ! [SV44: $i,SV12: $i,SV33: $i] :
      ( ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV12 )
        = $true )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 )
        = $true )
      | ( ( in @ ( sK15_SY155 @ SV33 @ SV12 @ SV44 ) @ SV33 )
        = $false )
      | ( ( SV44
          = ( set_union2 @ SV12 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[696]) ).

thf(717,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV34 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[697]) ).

thf(718,plain,
    ! [SV52: $i,SV15: $i,SV34: $i] :
      ( ( ( ~ ( in @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) @ SV15 ) )
        = $false )
      | ( ( in @ SV52 @ SV34 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[697]) ).

thf(719,plain,
    ! [SV34: $i,SV15: $i,SV60: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV60 ) )
        = $true )
      | ( ( ~ ( in @ SV60 @ SV15 ) )
        = $true )
      | ( ( in @ SV52 @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[698]) ).

thf(720,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK19_SY162 @ SV34 @ SV15 ) )
                | ~ ( in @ ( sK19_SY162 @ SV34 @ SV15 ) @ SV15 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[699]) ).

thf(721,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( ~ ( in @ SV59 @ SV15 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[700]) ).

thf(722,plain,
    ! [SV45: $i,SV22: $i,SV40: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV40 )
        = $false )
      | ( ( in @ SV57 @ SV22 )
        = $false )
      | ( ( in @ SV57 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[704]) ).

thf(723,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
          | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[705]) ).

thf(724,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
          | ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[706]) ).

thf(725,plain,
    ! [SV42: $i,SV5: $i,SV27: $i,SV54: $i] :
      ( ( ( in @ SV54 @ SV27 )
        = $true )
      | ( ( in @ SV54 @ SV5 )
        = $false )
      | ( ( in @ SV54 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[708]) ).

thf(726,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[709]) ).

thf(727,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[709]) ).

thf(728,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
          | ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[710]) ).

thf(729,plain,
    ! [SV15: $i,SV34: $i,SV52: $i] :
      ( ( ( in @ SV52 @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) )
        = $true )
      | ( ( in @ SV52 @ SV34 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[717]) ).

thf(730,plain,
    ! [SV52: $i,SV15: $i,SV34: $i] :
      ( ( ( in @ ( sK18_SY159 @ SV34 @ SV15 @ SV52 ) @ SV15 )
        = $true )
      | ( ( in @ SV52 @ SV34 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[718]) ).

thf(731,plain,
    ! [SV34: $i,SV15: $i,SV60: $i,SV52: $i] :
      ( ( ( in @ SV52 @ SV60 )
        = $false )
      | ( ( ~ ( in @ SV60 @ SV15 ) )
        = $true )
      | ( ( in @ SV52 @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[719]) ).

thf(732,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK19_SY162 @ SV34 @ SV15 ) )
              | ~ ( in @ ( sK19_SY162 @ SV34 @ SV15 ) @ SV15 ) ) )
        = $true )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[720]) ).

thf(733,plain,
    ! [SV34: $i,SV15: $i,SV59: $i] :
      ( ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY162: $i] :
                      ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                          | ~ ( in @ SY162 @ SV15 ) )
              | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) ) )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[721]) ).

thf(734,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[723]) ).

thf(735,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[723]) ).

thf(736,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
                | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[724]) ).

thf(737,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[724]) ).

thf(738,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $true )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[726]) ).

thf(739,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $true )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[727]) ).

thf(740,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
                | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[728]) ).

thf(741,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[728]) ).

thf(742,plain,
    ! [SV34: $i,SV52: $i,SV15: $i,SV60: $i] :
      ( ( ( in @ SV60 @ SV15 )
        = $false )
      | ( ( in @ SV52 @ SV60 )
        = $false )
      | ( ( in @ SV52 @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[731]) ).

thf(743,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK19_SY162 @ SV34 @ SV15 ) )
          | ~ ( in @ ( sK19_SY162 @ SV34 @ SV15 ) @ SV15 ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[732]) ).

thf(744,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ~ ! [SY162: $i] :
                  ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                      | ~ ( in @ SY162 @ SV15 ) )
          | ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[733]) ).

thf(745,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $true )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[734]) ).

thf(746,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $true )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[735]) ).

thf(747,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
              | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) ) )
        = $true )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[736]) ).

thf(748,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[739]) ).

thf(749,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
              | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) ) )
        = $true )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[740]) ).

thf(750,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK19_SY162 @ SV34 @ SV15 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[743]) ).

thf(751,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ( ~ ( in @ ( sK19_SY162 @ SV34 @ SV15 ) @ SV15 ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[743]) ).

thf(752,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ~ ! [SY162: $i] :
                  ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                      | ~ ( in @ SY162 @ SV15 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[744]) ).

thf(753,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[744]) ).

thf(754,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
          | ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[747]) ).

thf(755,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
          | ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[749]) ).

thf(756,plain,
    ! [SV34: $i,SV15: $i] :
      ( ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK19_SY162 @ SV34 @ SV15 ) )
        = $true )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[750]) ).

thf(757,plain,
    ! [SV15: $i,SV34: $i] :
      ( ( ( in @ ( sK19_SY162 @ SV34 @ SV15 ) @ SV15 )
        = $true )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV34 )
        = $true )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[751]) ).

thf(758,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ! [SY162: $i] :
                ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                    | ~ ( in @ SY162 @ SV15 ) ) )
        = $true )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[752]) ).

thf(759,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[754]) ).

thf(760,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( ~ ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 ) )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[754]) ).

thf(761,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[755]) ).

thf(762,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[755]) ).

thf(763,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ! [SY162: $i] :
              ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SY162 )
                  | ~ ( in @ SY162 @ SV15 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[758]) ).

thf(764,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $true )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[759]) ).

thf(765,plain,
    ! [SV45: $i,SV22: $i,SV40: $i] :
      ( ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $true )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV22 )
        = $false )
      | ( ( in @ ( sK16_SY157 @ SV40 @ SV22 @ SV45 ) @ SV40 )
        = $false )
      | ( ( SV45
          = ( set_intersection2 @ SV22 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[760]) ).

thf(766,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $true )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[761]) ).

thf(767,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( ~ ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 ) )
        = $true )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[762]) ).

thf(768,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) )
                | ~ ( in @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) @ SV15 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[763]) ).

thf(769,plain,
    ! [SV42: $i,SV5: $i,SV27: $i] :
      ( ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV5 )
        = $false )
      | ( ( in @ ( sK13_SY151 @ SV27 @ SV5 @ SV42 ) @ SV27 )
        = $true )
      | ( ( SV42
          = ( set_difference @ SV5 @ SV27 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[767]) ).

thf(770,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) )
              | ~ ( in @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) @ SV15 ) ) )
        = $true )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[768]) ).

thf(771,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) )
          | ~ ( in @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) @ SV15 ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[770]) ).

thf(772,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( ~ ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[771]) ).

thf(773,plain,
    ! [SV15: $i,SV34: $i,SV59: $i] :
      ( ( ( ~ ( in @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) @ SV15 ) )
        = $false )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[771]) ).

thf(774,plain,
    ! [SV59: $i,SV34: $i,SV15: $i] :
      ( ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) )
        = $true )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[772]) ).

thf(775,plain,
    ! [SV15: $i,SV34: $i,SV59: $i] :
      ( ( ( in @ ( sK20_SY162 @ SV59 @ SV34 @ SV15 ) @ SV15 )
        = $true )
      | ( ( in @ ( sK11_SY139 @ SV15 @ SV34 ) @ SV59 )
        = $false )
      | ( ( in @ SV59 @ SV15 )
        = $false )
      | ( ( SV34
          = ( union @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[773]) ).

thf(776,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[172,775,774,769,766,765,764,757,756,753,748,746,745,742,741,738,737,730,729,725,722,716,715,714,713,712,711,707,703,702,701,686,684,679,677,676,671,669,667,665,663,661,658,653,648,647,641,634,633,632,628,627,626,621,620,614,591,588,581,580,569,568,563,556,555,554,553,535,534,520,514,483,468,467,441,421,420,406,405,388,385,344,315,309,306,293,285,284,241,216,191,183,182,181,180,179,177,176,175,174,173]) ).

thf(777,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[776]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SEU172+2 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.04  % Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.07/0.17  % Computer : n014.cluster.edu
% 0.07/0.17  % Model    : x86_64 x86_64
% 0.07/0.17  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.17  % Memory   : 8046.5625MB
% 0.07/0.17  % OS       : Linux 6.8.0-71-generic
% 0.07/0.17  % CPULimit : 300
% 0.07/0.17  % WCLimit  : 300
% 0.07/0.17  % DateTime : Tue Oct  6 15:02:41 UTC 2026
% 0.07/0.18  % CPUTime  : 
% 0.07/0.18  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 3.70/0.92  
% 3.70/0.92   No.of.Axioms: 35
% 3.70/0.92  
% 3.70/0.92   Length.of.Defs: 0
% 3.70/0.92  
% 3.70/0.92   Contains.Choice.Funs: false
% 3.70/0.92  ......................
% 3.70/0.92  
% 3.70/0.92  ********************************
% 3.70/0.92  *   All subproblems solved!    *
% 3.70/0.92  ********************************
% 3.70/0.92  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:36,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:776,loop_count:0,foatp_calls:1,translation:fof_full)
% 3.70/0.92  
% 3.70/0.92  %**** Beginning of derivation protocol ****
% 3.70/0.92  % SZS output start CNFRefutation
% See solution above
% 3.70/0.93  
% 3.70/0.93  %**** End of derivation protocol ****
% 3.70/0.93  %**** no. of clauses in derivation: 701 ****
% 3.70/0.93  %**** clause counter: 776 ****
% 3.70/0.93  
% 3.70/0.93  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:36,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:299,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:776,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------