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

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SEU158+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 : n002.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 10:43:08 AM UTC 2026

% Result   : Theorem 7.98s 1.50s
% Output   : CNFRefutation 7.98s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   33
%            Number of leaves      :   53
% Syntax   : Number of formulae    : 1598 ( 614 unt;   0 typ;   0 def)
%            Number of atoms       : 12607 (4890 equ;   0 cnn)
%            Maximal formula atoms :    6 (   7 avg)
%            Number of connectives : 25461 (6032   ~;4462   |;  68   &;14728   @)
%                                         (  89 <=>;  82  =>;   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     :   48 (  45 usr;   5 con; 0-3 aty)
%            Number of variables   : 4503 (   0   ^;4495   !;   8   ?;4503   :)

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

thf(tp_disjoint,type,
    disjoint: $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_SY222,type,
    sK10_SY222: $i > $i > $i > $i ).

thf(tp_sK11_SY224,type,
    sK11_SY224: $i > $i > $i > $i ).

thf(tp_sK12_SY226,type,
    sK12_SY226: $i > $i > $i > $i ).

thf(tp_sK13_SY194,type,
    sK13_SY194: $i > $i > $i ).

thf(tp_sK14_SY227,type,
    sK14_SY227: $i > $i > $i > $i ).

thf(tp_sK15_SY230,type,
    sK15_SY230: $i > $i > $i ).

thf(tp_sK16_SY230,type,
    sK16_SY230: $i > $i > $i > $i ).

thf(tp_sK17_SY318,type,
    sK17_SY318: $i > $i > $i ).

thf(tp_sK18_SY278,type,
    sK18_SY278: $i > $i ).

thf(tp_sK19_SY309,type,
    sK19_SY309: $i > $i > $i ).

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

thf(tp_sK20_SY314,type,
    sK20_SY314: $i > $i > $i ).

thf(tp_sK21_SY330,type,
    sK21_SY330: $i > $i > $i ).

thf(tp_sK22_SY332,type,
    sK22_SY332: $i > $i > $i ).

thf(tp_sK23_SY343,type,
    sK23_SY343: $i > $i > $i > $i ).

thf(tp_sK24_SY345,type,
    sK24_SY345: $i > $i > $i > $i ).

thf(tp_sK25_SY347,type,
    sK25_SY347: $i > $i > $i > $i ).

thf(tp_sK26_SY349,type,
    sK26_SY349: $i > $i > $i > $i ).

thf(tp_sK27_SY321,type,
    sK27_SY321: $i > $i > $i ).

thf(tp_sK28_SY350,type,
    sK28_SY350: $i > $i > $i > $i ).

thf(tp_sK29_SY353,type,
    sK29_SY353: $i > $i > $i ).

thf(tp_sK2_SY107,type,
    sK2_SY107: $i ).

thf(tp_sK30_SY353,type,
    sK30_SY353: $i > $i > $i > $i ).

thf(tp_sK3_SY205,type,
    sK3_SY205: $i > $i > $i ).

thf(tp_sK4_SY137,type,
    sK4_SY137: $i > $i ).

thf(tp_sK5_SY185,type,
    sK5_SY185: $i > $i > $i ).

thf(tp_sK6_SY191,type,
    sK6_SY191: $i > $i > $i ).

thf(tp_sK7_SY203,type,
    sK7_SY203: $i > $i > $i ).

thf(tp_sK8_SY215,type,
    sK8_SY215: $i > $i > $i ).

thf(tp_sK9_SY220,type,
    sK9_SY220: $i > $i > $i > $i ).

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

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

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

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

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

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

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

thf(2,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( in @ A @ B )
        & ( empty @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_boole) ).

thf(6,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(10,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',reflexivity_r1_tarski) ).

thf(20,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_xboole_0) ).

thf(21,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_tarski) ).

thf(22,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_xboole_0) ).

thf(23,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_tarski) ).

thf(24,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_zfmisc_1) ).

thf(25,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_xboole_0) ).

thf(26,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_tarski) ).

thf(27,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_zfmisc_1) ).

thf(28,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_xboole_0) ).

thf(29,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_tarski) ).

thf(30,axiom,
    ! [A: $i,B: $i] :
      ( ( proper_subset @ A @ B )
    <=> ( ( subset @ A @ B )
        & ( A != B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d8_xboole_0) ).

thf(33,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(34,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(35,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(36,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(38,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(39,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(40,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(41,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(42,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(43,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d10_xboole_0) ).

thf(48,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(49,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( singleton @ A )
        = ( unordered_pair @ B @ C ) )
     => ( B = C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t9_zfmisc_1) ).

thf(50,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( singleton @ A )
        = ( unordered_pair @ B @ C ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_zfmisc_1) ).

thf(51,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ C @ B ) )
     => ( subset @ ( set_union2 @ A @ C ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_xboole_1) ).

thf(53,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(54,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(55,axiom,
    ! [A: $i] :
      ( ( unordered_pair @ A @ A )
      = ( singleton @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t69_enumset1) ).

thf(56,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( disjoint @ B @ C ) )
     => ( disjoint @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t63_xboole_1) ).

thf(57,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( subset @ A @ B )
        & ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(62,axiom,
    ! [A: $i] :
      ( ( subset @ A @ empty_set )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(63,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(66,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(68,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_xboole_1) ).

thf(69,axiom,
    ! [A: $i] : ( subset @ empty_set @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(70,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_intersection2 @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(71,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t26_xboole_1) ).

thf(73,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ B @ C ) )
     => ( subset @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_xboole_1) ).

thf(74,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ A @ C ) )
     => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t19_xboole_1) ).

thf(75,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(76,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_union2 @ A @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(79,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l50_zfmisc_1) ).

thf(80,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l4_zfmisc_1) ).

thf(81,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( ( in @ C @ A )
        | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l3_zfmisc_1) ).

thf(83,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(84,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( in @ A @ B )
     => ( disjoint @ ( singleton @ A ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l28_zfmisc_1) ).

thf(85,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( disjoint @ ( singleton @ A ) @ B )
        & ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l25_zfmisc_1) ).

thf(86,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( ( set_union2 @ ( singleton @ A ) @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l23_zfmisc_1) ).

thf(87,axiom,
    ! [A: $i] :
      ( ( singleton @ A )
     != empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(88,conjecture,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_zfmisc_1) ).

thf(89,negated_conjecture,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[88]) ).

thf(90,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[89]) ).

thf(91,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(92,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(93,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(94,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[20]) ).

thf(95,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[21]) ).

thf(96,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[22]) ).

thf(97,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[23]) ).

thf(98,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[24]) ).

thf(99,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[25]) ).

thf(100,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[26]) ).

thf(101,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[27]) ).

thf(102,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[28]) ).

thf(103,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[29]) ).

thf(104,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(105,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)],[33]) ).

thf(106,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)],[34]) ).

thf(107,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)],[35]) ).

thf(108,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(109,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)],[38]) ).

thf(110,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)],[39]) ).

thf(111,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[40]) ).

thf(112,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(113,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(114,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(115,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[48]) ).

thf(116,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[49]) ).

thf(117,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(118,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ B ) )
         => ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[51]) ).

thf(119,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[53]) ).

thf(120,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[54]) ).

thf(121,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[55]) ).

thf(122,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[56]) ).

thf(123,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[57]) ).

thf(124,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(125,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)],[63]) ).

thf(126,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[66]) ).

thf(127,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[68]) ).

thf(128,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[69]) ).

thf(129,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[70]) ).

thf(130,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[71]) ).

thf(131,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(132,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ A @ C ) )
         => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[74]) ).

thf(133,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(134,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(135,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[79]) ).

thf(136,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(137,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( in @ C @ A )
            | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[81]) ).

thf(138,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[83]) ).

thf(139,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[84]) ).

thf(140,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( disjoint @ ( singleton @ A ) @ B )
            & ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[85]) ).

thf(141,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[86]) ).

thf(142,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[87]) ).

thf(143,plain,
    ( ( ! [SY107: $i] :
          ( ( subset @ ( singleton @ sK1_A ) @ SY107 )
        <=> ( in @ sK1_A @ SY107 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[90]) ).

thf(144,plain,
    ( ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 )
    <=> ( in @ sK1_A @ sK2_SY107 ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[143]) ).

thf(145,plain,
    ( ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 )
     => ( in @ sK1_A @ sK2_SY107 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[144]) ).

thf(146,plain,
    ( ( ( in @ sK1_A @ sK2_SY107 )
     => ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[144]) ).

thf(147,plain,
    ( ( ~ ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 )
         => ( in @ sK1_A @ sK2_SY107 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[145]) ).

thf(148,plain,
    ( ( ~ ( ( in @ sK1_A @ sK2_SY107 )
         => ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[146]) ).

thf(149,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[142]) ).

thf(150,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[141]) ).

thf(151,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( disjoint @ ( singleton @ A ) @ B )
            & ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[140]) ).

thf(152,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[139]) ).

thf(153,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[138]) ).

thf(154,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( in @ C @ A )
            | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[137]) ).

thf(155,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[136]) ).

thf(156,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[135]) ).

thf(157,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[134]) ).

thf(158,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[133]) ).

thf(159,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ A @ C ) )
         => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[132]) ).

thf(160,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[131]) ).

thf(161,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[130]) ).

thf(162,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[129]) ).

thf(163,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[128]) ).

thf(164,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[127]) ).

thf(165,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[126]) ).

thf(166,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)],[125]) ).

thf(167,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[124]) ).

thf(168,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[123]) ).

thf(169,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[122]) ).

thf(170,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[121]) ).

thf(171,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[120]) ).

thf(172,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[119]) ).

thf(173,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ B ) )
         => ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[118]) ).

thf(174,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[117]) ).

thf(175,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(176,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[115]) ).

thf(177,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[114]) ).

thf(178,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[113]) ).

thf(179,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[112]) ).

thf(180,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[111]) ).

thf(181,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)],[110]) ).

thf(182,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)],[109]) ).

thf(183,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[108]) ).

thf(184,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)],[107]) ).

thf(185,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)],[106]) ).

thf(186,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)],[105]) ).

thf(187,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[104]) ).

thf(188,plain,
    $true = $true,
    inference(copy,[status(thm)],[103]) ).

thf(189,plain,
    $true = $true,
    inference(copy,[status(thm)],[102]) ).

thf(190,plain,
    $true = $true,
    inference(copy,[status(thm)],[101]) ).

thf(191,plain,
    $true = $true,
    inference(copy,[status(thm)],[100]) ).

thf(192,plain,
    $true = $true,
    inference(copy,[status(thm)],[99]) ).

thf(193,plain,
    $true = $true,
    inference(copy,[status(thm)],[98]) ).

thf(194,plain,
    $true = $true,
    inference(copy,[status(thm)],[97]) ).

thf(195,plain,
    $true = $true,
    inference(copy,[status(thm)],[96]) ).

thf(196,plain,
    $true = $true,
    inference(copy,[status(thm)],[95]) ).

thf(197,plain,
    $true = $true,
    inference(copy,[status(thm)],[94]) ).

thf(198,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[93]) ).

thf(199,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[92]) ).

thf(200,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[91]) ).

thf(201,plain,
    ( ( ~ ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 )
         => ( in @ sK1_A @ sK2_SY107 ) ) )
    = $true ),
    inference(copy,[status(thm)],[147]) ).

thf(202,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( SX0 != SX1 )
                | ~ ( ~ ( subset @ SX0 @ SX1 )
                    | ~ ( subset @ SX1 @ SX0 ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                      | ~ ( subset @ SX1 @ SX0 ) )
                | ( SX0 = SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[177]) ).

thf(203,plain,
    ( ( ! [SX0: $i] :
          ( ( singleton @ SX0 )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[149]) ).

thf(204,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX2 @ SX1 ) )
          | ( subset @ ( set_union2 @ SX0 @ SX2 ) @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[173]) ).

thf(205,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)],[178]) ).

thf(206,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( disjoint @ ( singleton @ SX0 ) @ SX1 )
              | ~ ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[151]) ).

thf(207,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( in @ SX2 @ SX0 )
          | ( subset @ SX0 @ ( set_difference @ SX1 @ ( singleton @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[154]) ).

thf(208,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
            | ~ ( ~ ( ( SX0 = empty_set )
                    | ( SX0
                      = ( singleton @ SX1 ) ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[155]) ).

thf(209,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ SX0 @ ( union @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[156]) ).

thf(210,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( subset @ SX0 @ empty_set )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[167]) ).

thf(211,plain,
    ( ( ~ ( ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 )
          | ( in @ sK1_A @ sK2_SY107 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[201]) ).

thf(212,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( subset @ ( set_difference @ SX0 @ SX2 ) @ ( set_difference @ SX1 @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[164]) ).

thf(213,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)],[185]) ).

thf(214,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( in @ SX0 @ SX1 )
              | ~ ( empty @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[200]) ).

thf(215,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)],[166]) ).

thf(216,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)],[179]) ).

thf(217,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ( ( singleton @ SX0 )
           != ( unordered_pair @ SX1 @ SX2 ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[174]) ).

thf(218,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) )
            | ~ ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[153]) ).

thf(219,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ( ( singleton @ SX0 )
           != ( unordered_pair @ SX1 @ SX2 ) )
          | ( SX1 = SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[175]) ).

thf(220,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[162]) ).

thf(221,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)],[184]) ).

thf(222,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( disjoint @ SX1 @ SX2 ) )
          | ( disjoint @ SX0 @ SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[169]) ).

thf(223,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ ( singleton @ SX1 ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[171]) ).

thf(224,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)],[183]) ).

thf(225,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_union2 @ SX0 @ SX1 )
            = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[157]) ).

thf(226,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( subset @ ( set_intersection2 @ SX0 @ SX2 ) @ ( set_intersection2 @ SX1 @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[161]) ).

thf(227,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( proper_subset @ SX0 @ SX1 )
                | ~ ( ~ ( subset @ SX0 @ SX1 )
                    | ~ ( ( SX0 != SX1 ) ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                      | ~ ( ( SX0 != SX1 ) ) )
                | ( proper_subset @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[187]) ).

thf(228,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( ( set_union2 @ ( singleton @ SX0 ) @ SX1 )
            = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[150]) ).

thf(229,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)],[199]) ).

thf(230,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)],[186]) ).

thf(231,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[176]) ).

thf(232,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)],[181]) ).

thf(233,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX0 @ SX2 ) )
          | ( subset @ SX0 @ ( set_intersection2 @ SX1 @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[159]) ).

thf(234,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX1 @ SX2 ) )
          | ( subset @ SX0 @ SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[160]) ).

thf(235,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ~ ( in @ SX0 @ SX1 )
          | ( disjoint @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[152]) ).

thf(236,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( subset @ SX0 @ SX1 )
              | ~ ( proper_subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[168]) ).

thf(237,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)],[180]) ).

thf(238,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)],[182]) ).

thf(239,plain,
    ! [SV1: $i] :
      ( ( ! [SY108: $i] : ( subset @ ( set_intersection2 @ SV1 @ SY108 ) @ SV1 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[158]) ).

thf(240,plain,
    ! [SV2: $i] :
      ( ( subset @ empty_set @ SV2 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[163]) ).

thf(241,plain,
    ! [SV3: $i] :
      ( ( ! [SY109: $i] : ( subset @ ( set_difference @ SV3 @ SY109 ) @ SV3 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[165]) ).

thf(242,plain,
    ! [SV4: $i] :
      ( ( ( unordered_pair @ SV4 @ SV4 )
        = ( singleton @ SV4 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[170]) ).

thf(243,plain,
    ! [SV5: $i] :
      ( ( ! [SY110: $i] : ( subset @ SV5 @ ( set_union2 @ SV5 @ SY110 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[172]) ).

thf(244,plain,
    ! [SV6: $i] :
      ( ( ! [SY111: $i] : ( subset @ SV6 @ SV6 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[198]) ).

thf(245,plain,
    ! [SV7: $i] :
      ( ( ! [SY112: $i] :
            ~ ( ~ ( ( SV7 != SY112 )
                  | ~ ( ~ ( subset @ SV7 @ SY112 )
                      | ~ ( subset @ SY112 @ SV7 ) ) )
              | ~ ( ~ ~ ( ~ ( subset @ SV7 @ SY112 )
                        | ~ ( subset @ SY112 @ SV7 ) )
                  | ( SV7 = SY112 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[202]) ).

thf(246,plain,
    ! [SV8: $i] :
      ( ( ( singleton @ SV8 )
       != empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[203]) ).

thf(247,plain,
    ! [SV9: $i] :
      ( ( ! [SY113: $i,SY114: $i] :
            ( ~ ~ ( ~ ( subset @ SV9 @ SY113 )
                  | ~ ( subset @ SY114 @ SY113 ) )
            | ( subset @ ( set_union2 @ SV9 @ SY114 ) @ SY113 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[204]) ).

thf(248,plain,
    ! [SV10: $i] :
      ( ( ! [SY115: $i] :
            ~ ( ~ ( ( SY115
                   != ( singleton @ SV10 ) )
                  | ! [SY116: $i] :
                      ~ ( ~ ( ~ ( in @ SY116 @ SY115 )
                            | ( SY116 = SV10 ) )
                        | ~ ( ( SY116 != SV10 )
                            | ( in @ SY116 @ SY115 ) ) ) )
              | ~ ( ~ ! [SY117: $i] :
                        ~ ( ~ ( ~ ( in @ SY117 @ SY115 )
                              | ( SY117 = SV10 ) )
                          | ~ ( ( SY117 != SV10 )
                              | ( in @ SY117 @ SY115 ) ) )
                  | ( SY115
                    = ( singleton @ SV10 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[205]) ).

thf(249,plain,
    ! [SV11: $i] :
      ( ( ! [SY118: $i] :
            ~ ~ ( ~ ( disjoint @ ( singleton @ SV11 ) @ SY118 )
                | ~ ( in @ SV11 @ SY118 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[206]) ).

thf(250,plain,
    ! [SV12: $i] :
      ( ( ! [SY119: $i,SY120: $i] :
            ( ~ ( subset @ SV12 @ SY119 )
            | ( in @ SY120 @ SV12 )
            | ( subset @ SV12 @ ( set_difference @ SY119 @ ( singleton @ SY120 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[207]) ).

thf(251,plain,
    ! [SV13: $i] :
      ( ( ! [SY121: $i] :
            ~ ( ~ ( ~ ( subset @ SV13 @ ( singleton @ SY121 ) )
                  | ( SV13 = empty_set )
                  | ( SV13
                    = ( singleton @ SY121 ) ) )
              | ~ ( ~ ( ( SV13 = empty_set )
                      | ( SV13
                        = ( singleton @ SY121 ) ) )
                  | ( subset @ SV13 @ ( singleton @ SY121 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[208]) ).

thf(252,plain,
    ! [SV14: $i] :
      ( ( ! [SY122: $i] :
            ( ~ ( in @ SV14 @ SY122 )
            | ( subset @ SV14 @ ( union @ SY122 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[209]) ).

thf(253,plain,
    ! [SV15: $i] :
      ( ( ~ ( subset @ SV15 @ empty_set )
        | ( SV15 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[210]) ).

thf(254,plain,
    ( ( ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 )
      | ( in @ sK1_A @ sK2_SY107 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[211]) ).

thf(255,plain,
    ! [SV16: $i] :
      ( ( ! [SY123: $i,SY124: $i] :
            ( ~ ( subset @ SV16 @ SY123 )
            | ( subset @ ( set_difference @ SV16 @ SY124 ) @ ( set_difference @ SY123 @ SY124 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[212]) ).

thf(256,plain,
    ! [SV17: $i] :
      ( ( ! [SY125: $i] :
            ~ ( ~ ( ( SY125
                   != ( union @ SV17 ) )
                  | ! [SY126: $i] :
                      ~ ( ~ ( ~ ( in @ SY126 @ SY125 )
                            | ~ ! [SY127: $i] :
                                  ~ ~ ( ~ ( in @ SY126 @ SY127 )
                                      | ~ ( in @ SY127 @ SV17 ) ) )
                        | ~ ( ~ ~ ! [SY128: $i] :
                                    ~ ~ ( ~ ( in @ SY126 @ SY128 )
                                        | ~ ( in @ SY128 @ SV17 ) )
                            | ( in @ SY126 @ SY125 ) ) ) )
              | ~ ( ~ ! [SY129: $i] :
                        ~ ( ~ ( ~ ( in @ SY129 @ SY125 )
                              | ~ ! [SY130: $i] :
                                    ~ ~ ( ~ ( in @ SY129 @ SY130 )
                                        | ~ ( in @ SY130 @ SV17 ) ) )
                          | ~ ( ~ ~ ! [SY131: $i] :
                                      ~ ~ ( ~ ( in @ SY129 @ SY131 )
                                          | ~ ( in @ SY131 @ SV17 ) )
                              | ( in @ SY129 @ SY125 ) ) )
                  | ( SY125
                    = ( union @ SV17 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[213]) ).

thf(257,plain,
    ! [SV18: $i] :
      ( ( ! [SY132: $i] :
            ~ ~ ( ~ ( in @ SV18 @ SY132 )
                | ~ ( empty @ SY132 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[214]) ).

thf(258,plain,
    ! [SV19: $i] :
      ( ( ! [SY133: $i] :
            ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV19 @ SY133 )
                      | ~ ! [SY134: $i] :
                            ~ ~ ( ~ ( in @ SY134 @ SV19 )
                                | ~ ( in @ SY134 @ SY133 ) ) )
              | ~ ~ ~ ( ~ ~ ! [SY135: $i] :
                              ~ ~ ( ~ ( in @ SY135 @ SV19 )
                                  | ~ ( in @ SY135 @ SY133 ) )
                      | ~ ( disjoint @ SV19 @ SY133 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[215]) ).

thf(259,plain,
    ! [SV20: $i] :
      ( ( ~ ( ~ ( ( SV20 != empty_set )
                | ! [SY136: $i] :
                    ~ ( in @ SY136 @ SV20 ) )
            | ~ ( ~ ! [SY137: $i] :
                      ~ ( in @ SY137 @ SV20 )
                | ( SV20 = empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[216]) ).

thf(260,plain,
    ! [SV21: $i] :
      ( ( ! [SY138: $i,SY139: $i] :
            ( ( ( singleton @ SV21 )
             != ( unordered_pair @ SY138 @ SY139 ) )
            | ( SV21 = SY138 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[217]) ).

thf(261,plain,
    ! [SV22: $i] :
      ( ( ! [SY140: $i] :
            ~ ( ~ ( ~ ( subset @ ( singleton @ SV22 ) @ SY140 )
                  | ( in @ SV22 @ SY140 ) )
              | ~ ( ~ ( in @ SV22 @ SY140 )
                  | ( subset @ ( singleton @ SV22 ) @ SY140 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[218]) ).

thf(262,plain,
    ! [SV23: $i] :
      ( ( ! [SY141: $i,SY142: $i] :
            ( ( ( singleton @ SV23 )
             != ( unordered_pair @ SY141 @ SY142 ) )
            | ( SY141 = SY142 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[219]) ).

thf(263,plain,
    ! [SV24: $i] :
      ( ( ! [SY143: $i] :
            ( ~ ( subset @ SV24 @ SY143 )
            | ( ( set_intersection2 @ SV24 @ SY143 )
              = SV24 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[220]) ).

thf(264,plain,
    ! [SV25: $i] :
      ( ( ! [SY144: $i,SY145: $i] :
            ~ ( ~ ( ( SY145
                   != ( set_intersection2 @ SV25 @ SY144 ) )
                  | ! [SY146: $i] :
                      ~ ( ~ ( ~ ( in @ SY146 @ SY145 )
                            | ~ ( ~ ( in @ SY146 @ SV25 )
                                | ~ ( in @ SY146 @ SY144 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY146 @ SV25 )
                                  | ~ ( in @ SY146 @ SY144 ) )
                            | ( in @ SY146 @ SY145 ) ) ) )
              | ~ ( ~ ! [SY147: $i] :
                        ~ ( ~ ( ~ ( in @ SY147 @ SY145 )
                              | ~ ( ~ ( in @ SY147 @ SV25 )
                                  | ~ ( in @ SY147 @ SY144 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY147 @ SV25 )
                                    | ~ ( in @ SY147 @ SY144 ) )
                              | ( in @ SY147 @ SY145 ) ) )
                  | ( SY145
                    = ( set_intersection2 @ SV25 @ SY144 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[221]) ).

thf(265,plain,
    ! [SV26: $i] :
      ( ( ! [SY148: $i,SY149: $i] :
            ( ~ ~ ( ~ ( subset @ SV26 @ SY148 )
                  | ~ ( disjoint @ SY148 @ SY149 ) )
            | ( disjoint @ SV26 @ SY149 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[222]) ).

thf(266,plain,
    ! [SV27: $i] :
      ( ( ! [SY150: $i] :
            ( ~ ( subset @ ( singleton @ SV27 ) @ ( singleton @ SY150 ) )
            | ( SV27 = SY150 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[223]) ).

thf(267,plain,
    ! [SV28: $i] :
      ( ( ! [SY151: $i] :
            ~ ( ~ ( ~ ( subset @ SV28 @ SY151 )
                  | ! [SY152: $i] :
                      ( ~ ( in @ SY152 @ SV28 )
                      | ( in @ SY152 @ SY151 ) ) )
              | ~ ( ~ ! [SY153: $i] :
                        ( ~ ( in @ SY153 @ SV28 )
                        | ( in @ SY153 @ SY151 ) )
                  | ( subset @ SV28 @ SY151 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[224]) ).

thf(268,plain,
    ! [SV29: $i] :
      ( ( ! [SY154: $i] :
            ( ~ ( subset @ SV29 @ SY154 )
            | ( ( set_union2 @ SV29 @ SY154 )
              = SY154 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[225]) ).

thf(269,plain,
    ! [SV30: $i] :
      ( ( ! [SY155: $i,SY156: $i] :
            ( ~ ( subset @ SV30 @ SY155 )
            | ( subset @ ( set_intersection2 @ SV30 @ SY156 ) @ ( set_intersection2 @ SY155 @ SY156 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[226]) ).

thf(270,plain,
    ! [SV31: $i] :
      ( ( ! [SY157: $i] :
            ~ ( ~ ( ~ ( proper_subset @ SV31 @ SY157 )
                  | ~ ( ~ ( subset @ SV31 @ SY157 )
                      | ~ ( ( SV31 != SY157 ) ) ) )
              | ~ ( ~ ~ ( ~ ( subset @ SV31 @ SY157 )
                        | ~ ( ( SV31 != SY157 ) ) )
                  | ( proper_subset @ SV31 @ SY157 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[227]) ).

thf(271,plain,
    ! [SV32: $i] :
      ( ( ! [SY158: $i] :
            ( ~ ( in @ SV32 @ SY158 )
            | ( ( set_union2 @ ( singleton @ SV32 ) @ SY158 )
              = SY158 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[228]) ).

thf(272,plain,
    ! [SV33: $i] :
      ( ( ! [SY159: $i] :
            ( ~ ! [SY160: $i] :
                  ~ ( ~ ( ~ ( in @ SY160 @ SV33 )
                        | ( in @ SY160 @ SY159 ) )
                    | ~ ( ~ ( in @ SY160 @ SY159 )
                        | ( in @ SY160 @ SV33 ) ) )
            | ( SV33 = SY159 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[229]) ).

thf(273,plain,
    ! [SV34: $i] :
      ( ( ! [SY161: $i,SY162: $i] :
            ~ ( ~ ( ( SY162
                   != ( set_difference @ SV34 @ SY161 ) )
                  | ! [SY163: $i] :
                      ~ ( ~ ( ~ ( in @ SY163 @ SY162 )
                            | ~ ( ~ ( in @ SY163 @ SV34 )
                                | ~ ~ ( in @ SY163 @ SY161 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY163 @ SV34 )
                                  | ~ ~ ( in @ SY163 @ SY161 ) )
                            | ( in @ SY163 @ SY162 ) ) ) )
              | ~ ( ~ ! [SY164: $i] :
                        ~ ( ~ ( ~ ( in @ SY164 @ SY162 )
                              | ~ ( ~ ( in @ SY164 @ SV34 )
                                  | ~ ~ ( in @ SY164 @ SY161 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY164 @ SV34 )
                                    | ~ ~ ( in @ SY164 @ SY161 ) )
                              | ( in @ SY164 @ SY162 ) ) )
                  | ( SY162
                    = ( set_difference @ SV34 @ SY161 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[230]) ).

thf(274,plain,
    ! [SV35: $i] :
      ( ( ! [SY165: $i] :
            ( ~ ( in @ SV35 @ SY165 )
            | ~ ( in @ SY165 @ SV35 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[231]) ).

thf(275,plain,
    ! [SV36: $i] :
      ( ( ! [SY166: $i,SY167: $i] :
            ~ ( ~ ( ( SY167
                   != ( unordered_pair @ SV36 @ SY166 ) )
                  | ! [SY168: $i] :
                      ~ ( ~ ( ~ ( in @ SY168 @ SY167 )
                            | ( SY168 = SV36 )
                            | ( SY168 = SY166 ) )
                        | ~ ( ~ ( ( SY168 = SV36 )
                                | ( SY168 = SY166 ) )
                            | ( in @ SY168 @ SY167 ) ) ) )
              | ~ ( ~ ! [SY169: $i] :
                        ~ ( ~ ( ~ ( in @ SY169 @ SY167 )
                              | ( SY169 = SV36 )
                              | ( SY169 = SY166 ) )
                          | ~ ( ~ ( ( SY169 = SV36 )
                                  | ( SY169 = SY166 ) )
                              | ( in @ SY169 @ SY167 ) ) )
                  | ( SY167
                    = ( unordered_pair @ SV36 @ SY166 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[232]) ).

thf(276,plain,
    ! [SV37: $i] :
      ( ( ! [SY170: $i,SY171: $i] :
            ( ~ ~ ( ~ ( subset @ SV37 @ SY170 )
                  | ~ ( subset @ SV37 @ SY171 ) )
            | ( subset @ SV37 @ ( set_intersection2 @ SY170 @ SY171 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[233]) ).

thf(277,plain,
    ! [SV38: $i] :
      ( ( ! [SY172: $i,SY173: $i] :
            ( ~ ~ ( ~ ( subset @ SV38 @ SY172 )
                  | ~ ( subset @ SY172 @ SY173 ) )
            | ( subset @ SV38 @ SY173 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[234]) ).

thf(278,plain,
    ! [SV39: $i] :
      ( ( ! [SY174: $i] :
            ( ~ ~ ( in @ SV39 @ SY174 )
            | ( disjoint @ ( singleton @ SV39 ) @ SY174 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[235]) ).

thf(279,plain,
    ! [SV40: $i] :
      ( ( ! [SY175: $i] :
            ~ ~ ( ~ ( subset @ SV40 @ SY175 )
                | ~ ( proper_subset @ SY175 @ SV40 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[236]) ).

thf(280,plain,
    ! [SV41: $i] :
      ( ( ! [SY176: $i] :
            ~ ( ~ ( ( SY176
                   != ( powerset @ SV41 ) )
                  | ! [SY177: $i] :
                      ~ ( ~ ( ~ ( in @ SY177 @ SY176 )
                            | ( subset @ SY177 @ SV41 ) )
                        | ~ ( ~ ( subset @ SY177 @ SV41 )
                            | ( in @ SY177 @ SY176 ) ) ) )
              | ~ ( ~ ! [SY178: $i] :
                        ~ ( ~ ( ~ ( in @ SY178 @ SY176 )
                              | ( subset @ SY178 @ SV41 ) )
                          | ~ ( ~ ( subset @ SY178 @ SV41 )
                              | ( in @ SY178 @ SY176 ) ) )
                  | ( SY176
                    = ( powerset @ SV41 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[237]) ).

thf(281,plain,
    ! [SV42: $i] :
      ( ( ! [SY179: $i,SY180: $i] :
            ~ ( ~ ( ( SY180
                   != ( set_union2 @ SV42 @ SY179 ) )
                  | ! [SY181: $i] :
                      ~ ( ~ ( ~ ( in @ SY181 @ SY180 )
                            | ( in @ SY181 @ SV42 )
                            | ( in @ SY181 @ SY179 ) )
                        | ~ ( ~ ( ( in @ SY181 @ SV42 )
                                | ( in @ SY181 @ SY179 ) )
                            | ( in @ SY181 @ SY180 ) ) ) )
              | ~ ( ~ ! [SY182: $i] :
                        ~ ( ~ ( ~ ( in @ SY182 @ SY180 )
                              | ( in @ SY182 @ SV42 )
                              | ( in @ SY182 @ SY179 ) )
                          | ~ ( ~ ( ( in @ SY182 @ SV42 )
                                  | ( in @ SY182 @ SY179 ) )
                              | ( in @ SY182 @ SY180 ) ) )
                  | ( SY180
                    = ( set_union2 @ SV42 @ SY179 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[238]) ).

thf(282,plain,
    ! [SV43: $i,SV1: $i] :
      ( ( subset @ ( set_intersection2 @ SV1 @ SV43 ) @ SV1 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[239]) ).

thf(283,plain,
    ! [SV44: $i,SV3: $i] :
      ( ( subset @ ( set_difference @ SV3 @ SV44 ) @ SV3 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[241]) ).

thf(284,plain,
    ! [SV45: $i,SV5: $i] :
      ( ( subset @ SV5 @ ( set_union2 @ SV5 @ SV45 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[243]) ).

thf(285,plain,
    ! [SV6: $i] :
      ( ( subset @ SV6 @ SV6 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[244]) ).

thf(286,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ~ ( ~ ( ( SV7 != SV47 )
                | ~ ( ~ ( subset @ SV7 @ SV47 )
                    | ~ ( subset @ SV47 @ SV7 ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SV7 @ SV47 )
                      | ~ ( subset @ SV47 @ SV7 ) )
                | ( SV7 = SV47 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[245]) ).

thf(287,plain,
    ! [SV8: $i] :
      ( ( ( singleton @ SV8 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[246]) ).

thf(288,plain,
    ! [SV48: $i,SV9: $i] :
      ( ( ! [SY183: $i] :
            ( ~ ~ ( ~ ( subset @ SV9 @ SV48 )
                  | ~ ( subset @ SY183 @ SV48 ) )
            | ( subset @ ( set_union2 @ SV9 @ SY183 ) @ SV48 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[247]) ).

thf(289,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ~ ( ~ ( ( SV49
                 != ( singleton @ SV10 ) )
                | ! [SY184: $i] :
                    ~ ( ~ ( ~ ( in @ SY184 @ SV49 )
                          | ( SY184 = SV10 ) )
                      | ~ ( ( SY184 != SV10 )
                          | ( in @ SY184 @ SV49 ) ) ) )
            | ~ ( ~ ! [SY185: $i] :
                      ~ ( ~ ( ~ ( in @ SY185 @ SV49 )
                            | ( SY185 = SV10 ) )
                        | ~ ( ( SY185 != SV10 )
                            | ( in @ SY185 @ SV49 ) ) )
                | ( SV49
                  = ( singleton @ SV10 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[248]) ).

thf(290,plain,
    ! [SV50: $i,SV11: $i] :
      ( ( ~ ~ ( ~ ( disjoint @ ( singleton @ SV11 ) @ SV50 )
              | ~ ( in @ SV11 @ SV50 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[249]) ).

thf(291,plain,
    ! [SV51: $i,SV12: $i] :
      ( ( ! [SY186: $i] :
            ( ~ ( subset @ SV12 @ SV51 )
            | ( in @ SY186 @ SV12 )
            | ( subset @ SV12 @ ( set_difference @ SV51 @ ( singleton @ SY186 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[250]) ).

thf(292,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV13 @ ( singleton @ SV52 ) )
                | ( SV13 = empty_set )
                | ( SV13
                  = ( singleton @ SV52 ) ) )
            | ~ ( ~ ( ( SV13 = empty_set )
                    | ( SV13
                      = ( singleton @ SV52 ) ) )
                | ( subset @ SV13 @ ( singleton @ SV52 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[251]) ).

thf(293,plain,
    ! [SV53: $i,SV14: $i] :
      ( ( ~ ( in @ SV14 @ SV53 )
        | ( subset @ SV14 @ ( union @ SV53 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[252]) ).

thf(294,plain,
    ! [SV15: $i] :
      ( ( ( ~ ( subset @ SV15 @ empty_set ) )
        = $true )
      | ( ( SV15 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[253]) ).

thf(295,plain,
    ( ( ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[254]) ).

thf(296,plain,
    ( ( in @ sK1_A @ sK2_SY107 )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[254]) ).

thf(297,plain,
    ! [SV54: $i,SV16: $i] :
      ( ( ! [SY187: $i] :
            ( ~ ( subset @ SV16 @ SV54 )
            | ( subset @ ( set_difference @ SV16 @ SY187 ) @ ( set_difference @ SV54 @ SY187 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[255]) ).

thf(298,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ~ ( ~ ( ( SV55
                 != ( union @ SV17 ) )
                | ! [SY188: $i] :
                    ~ ( ~ ( ~ ( in @ SY188 @ SV55 )
                          | ~ ! [SY127: $i] :
                                ~ ~ ( ~ ( in @ SY188 @ SY127 )
                                    | ~ ( in @ SY127 @ SV17 ) ) )
                      | ~ ( ~ ~ ! [SY128: $i] :
                                  ~ ~ ( ~ ( in @ SY188 @ SY128 )
                                      | ~ ( in @ SY128 @ SV17 ) )
                          | ( in @ SY188 @ SV55 ) ) ) )
            | ~ ( ~ ! [SY191: $i] :
                      ~ ( ~ ( ~ ( in @ SY191 @ SV55 )
                            | ~ ! [SY130: $i] :
                                  ~ ~ ( ~ ( in @ SY191 @ SY130 )
                                      | ~ ( in @ SY130 @ SV17 ) ) )
                        | ~ ( ~ ~ ! [SY131: $i] :
                                    ~ ~ ( ~ ( in @ SY191 @ SY131 )
                                        | ~ ( in @ SY131 @ SV17 ) )
                            | ( in @ SY191 @ SV55 ) ) )
                | ( SV55
                  = ( union @ SV17 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[256]) ).

thf(299,plain,
    ! [SV56: $i,SV18: $i] :
      ( ( ~ ~ ( ~ ( in @ SV18 @ SV56 )
              | ~ ( empty @ SV56 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[257]) ).

thf(300,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV19 @ SV57 )
                    | ~ ! [SY194: $i] :
                          ~ ~ ( ~ ( in @ SY194 @ SV19 )
                              | ~ ( in @ SY194 @ SV57 ) ) )
            | ~ ~ ~ ( ~ ~ ! [SY195: $i] :
                            ~ ~ ( ~ ( in @ SY195 @ SV19 )
                                | ~ ( in @ SY195 @ SV57 ) )
                    | ~ ( disjoint @ SV19 @ SV57 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[258]) ).

thf(301,plain,
    ! [SV20: $i] :
      ( ( ~ ( ( SV20 != empty_set )
            | ! [SY136: $i] :
                ~ ( in @ SY136 @ SV20 ) )
        | ~ ( ~ ! [SY137: $i] :
                  ~ ( in @ SY137 @ SV20 )
            | ( SV20 = empty_set ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[259]) ).

thf(302,plain,
    ! [SV58: $i,SV21: $i] :
      ( ( ! [SY196: $i] :
            ( ( ( singleton @ SV21 )
             != ( unordered_pair @ SV58 @ SY196 ) )
            | ( SV21 = SV58 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[260]) ).

thf(303,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ ( singleton @ SV22 ) @ SV59 )
                | ( in @ SV22 @ SV59 ) )
            | ~ ( ~ ( in @ SV22 @ SV59 )
                | ( subset @ ( singleton @ SV22 ) @ SV59 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[261]) ).

thf(304,plain,
    ! [SV60: $i,SV23: $i] :
      ( ( ! [SY197: $i] :
            ( ( ( singleton @ SV23 )
             != ( unordered_pair @ SV60 @ SY197 ) )
            | ( SV60 = SY197 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[262]) ).

thf(305,plain,
    ! [SV61: $i,SV24: $i] :
      ( ( ~ ( subset @ SV24 @ SV61 )
        | ( ( set_intersection2 @ SV24 @ SV61 )
          = SV24 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[263]) ).

thf(306,plain,
    ! [SV62: $i,SV25: $i] :
      ( ( ! [SY198: $i] :
            ~ ( ~ ( ( SY198
                   != ( set_intersection2 @ SV25 @ SV62 ) )
                  | ! [SY199: $i] :
                      ~ ( ~ ( ~ ( in @ SY199 @ SY198 )
                            | ~ ( ~ ( in @ SY199 @ SV25 )
                                | ~ ( in @ SY199 @ SV62 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY199 @ SV25 )
                                  | ~ ( in @ SY199 @ SV62 ) )
                            | ( in @ SY199 @ SY198 ) ) ) )
              | ~ ( ~ ! [SY200: $i] :
                        ~ ( ~ ( ~ ( in @ SY200 @ SY198 )
                              | ~ ( ~ ( in @ SY200 @ SV25 )
                                  | ~ ( in @ SY200 @ SV62 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY200 @ SV25 )
                                    | ~ ( in @ SY200 @ SV62 ) )
                              | ( in @ SY200 @ SY198 ) ) )
                  | ( SY198
                    = ( set_intersection2 @ SV25 @ SV62 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[264]) ).

thf(307,plain,
    ! [SV63: $i,SV26: $i] :
      ( ( ! [SY201: $i] :
            ( ~ ~ ( ~ ( subset @ SV26 @ SV63 )
                  | ~ ( disjoint @ SV63 @ SY201 ) )
            | ( disjoint @ SV26 @ SY201 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[265]) ).

thf(308,plain,
    ! [SV64: $i,SV27: $i] :
      ( ( ~ ( subset @ ( singleton @ SV27 ) @ ( singleton @ SV64 ) )
        | ( SV27 = SV64 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[266]) ).

thf(309,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV28 @ SV65 )
                | ! [SY202: $i] :
                    ( ~ ( in @ SY202 @ SV28 )
                    | ( in @ SY202 @ SV65 ) ) )
            | ~ ( ~ ! [SY203: $i] :
                      ( ~ ( in @ SY203 @ SV28 )
                      | ( in @ SY203 @ SV65 ) )
                | ( subset @ SV28 @ SV65 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[267]) ).

thf(310,plain,
    ! [SV66: $i,SV29: $i] :
      ( ( ~ ( subset @ SV29 @ SV66 )
        | ( ( set_union2 @ SV29 @ SV66 )
          = SV66 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[268]) ).

thf(311,plain,
    ! [SV67: $i,SV30: $i] :
      ( ( ! [SY204: $i] :
            ( ~ ( subset @ SV30 @ SV67 )
            | ( subset @ ( set_intersection2 @ SV30 @ SY204 ) @ ( set_intersection2 @ SV67 @ SY204 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[269]) ).

thf(312,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ~ ( ~ ( ~ ( proper_subset @ SV31 @ SV68 )
                | ~ ( ~ ( subset @ SV31 @ SV68 )
                    | ~ ( ( SV31 != SV68 ) ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SV31 @ SV68 )
                      | ~ ( ( SV31 != SV68 ) ) )
                | ( proper_subset @ SV31 @ SV68 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[270]) ).

thf(313,plain,
    ! [SV69: $i,SV32: $i] :
      ( ( ~ ( in @ SV32 @ SV69 )
        | ( ( set_union2 @ ( singleton @ SV32 ) @ SV69 )
          = SV69 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[271]) ).

thf(314,plain,
    ! [SV70: $i,SV33: $i] :
      ( ( ~ ! [SY205: $i] :
              ~ ( ~ ( ~ ( in @ SY205 @ SV33 )
                    | ( in @ SY205 @ SV70 ) )
                | ~ ( ~ ( in @ SY205 @ SV70 )
                    | ( in @ SY205 @ SV33 ) ) )
        | ( SV33 = SV70 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[272]) ).

thf(315,plain,
    ! [SV71: $i,SV34: $i] :
      ( ( ! [SY206: $i] :
            ~ ( ~ ( ( SY206
                   != ( set_difference @ SV34 @ SV71 ) )
                  | ! [SY207: $i] :
                      ~ ( ~ ( ~ ( in @ SY207 @ SY206 )
                            | ~ ( ~ ( in @ SY207 @ SV34 )
                                | ~ ~ ( in @ SY207 @ SV71 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY207 @ SV34 )
                                  | ~ ~ ( in @ SY207 @ SV71 ) )
                            | ( in @ SY207 @ SY206 ) ) ) )
              | ~ ( ~ ! [SY208: $i] :
                        ~ ( ~ ( ~ ( in @ SY208 @ SY206 )
                              | ~ ( ~ ( in @ SY208 @ SV34 )
                                  | ~ ~ ( in @ SY208 @ SV71 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY208 @ SV34 )
                                    | ~ ~ ( in @ SY208 @ SV71 ) )
                              | ( in @ SY208 @ SY206 ) ) )
                  | ( SY206
                    = ( set_difference @ SV34 @ SV71 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[273]) ).

thf(316,plain,
    ! [SV72: $i,SV35: $i] :
      ( ( ~ ( in @ SV35 @ SV72 )
        | ~ ( in @ SV72 @ SV35 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[274]) ).

thf(317,plain,
    ! [SV73: $i,SV36: $i] :
      ( ( ! [SY209: $i] :
            ~ ( ~ ( ( SY209
                   != ( unordered_pair @ SV36 @ SV73 ) )
                  | ! [SY210: $i] :
                      ~ ( ~ ( ~ ( in @ SY210 @ SY209 )
                            | ( SY210 = SV36 )
                            | ( SY210 = SV73 ) )
                        | ~ ( ~ ( ( SY210 = SV36 )
                                | ( SY210 = SV73 ) )
                            | ( in @ SY210 @ SY209 ) ) ) )
              | ~ ( ~ ! [SY211: $i] :
                        ~ ( ~ ( ~ ( in @ SY211 @ SY209 )
                              | ( SY211 = SV36 )
                              | ( SY211 = SV73 ) )
                          | ~ ( ~ ( ( SY211 = SV36 )
                                  | ( SY211 = SV73 ) )
                              | ( in @ SY211 @ SY209 ) ) )
                  | ( SY209
                    = ( unordered_pair @ SV36 @ SV73 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[275]) ).

thf(318,plain,
    ! [SV74: $i,SV37: $i] :
      ( ( ! [SY212: $i] :
            ( ~ ~ ( ~ ( subset @ SV37 @ SV74 )
                  | ~ ( subset @ SV37 @ SY212 ) )
            | ( subset @ SV37 @ ( set_intersection2 @ SV74 @ SY212 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[276]) ).

thf(319,plain,
    ! [SV75: $i,SV38: $i] :
      ( ( ! [SY213: $i] :
            ( ~ ~ ( ~ ( subset @ SV38 @ SV75 )
                  | ~ ( subset @ SV75 @ SY213 ) )
            | ( subset @ SV38 @ SY213 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[277]) ).

thf(320,plain,
    ! [SV76: $i,SV39: $i] :
      ( ( ~ ~ ( in @ SV39 @ SV76 )
        | ( disjoint @ ( singleton @ SV39 ) @ SV76 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[278]) ).

thf(321,plain,
    ! [SV77: $i,SV40: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV40 @ SV77 )
              | ~ ( proper_subset @ SV77 @ SV40 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[279]) ).

thf(322,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ~ ( ~ ( ( SV78
                 != ( powerset @ SV41 ) )
                | ! [SY214: $i] :
                    ~ ( ~ ( ~ ( in @ SY214 @ SV78 )
                          | ( subset @ SY214 @ SV41 ) )
                      | ~ ( ~ ( subset @ SY214 @ SV41 )
                          | ( in @ SY214 @ SV78 ) ) ) )
            | ~ ( ~ ! [SY215: $i] :
                      ~ ( ~ ( ~ ( in @ SY215 @ SV78 )
                            | ( subset @ SY215 @ SV41 ) )
                        | ~ ( ~ ( subset @ SY215 @ SV41 )
                            | ( in @ SY215 @ SV78 ) ) )
                | ( SV78
                  = ( powerset @ SV41 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[280]) ).

thf(323,plain,
    ! [SV79: $i,SV42: $i] :
      ( ( ! [SY216: $i] :
            ~ ( ~ ( ( SY216
                   != ( set_union2 @ SV42 @ SV79 ) )
                  | ! [SY217: $i] :
                      ~ ( ~ ( ~ ( in @ SY217 @ SY216 )
                            | ( in @ SY217 @ SV42 )
                            | ( in @ SY217 @ SV79 ) )
                        | ~ ( ~ ( ( in @ SY217 @ SV42 )
                                | ( in @ SY217 @ SV79 ) )
                            | ( in @ SY217 @ SY216 ) ) ) )
              | ~ ( ~ ! [SY218: $i] :
                        ~ ( ~ ( ~ ( in @ SY218 @ SY216 )
                              | ( in @ SY218 @ SV42 )
                              | ( in @ SY218 @ SV79 ) )
                          | ~ ( ~ ( ( in @ SY218 @ SV42 )
                                  | ( in @ SY218 @ SV79 ) )
                              | ( in @ SY218 @ SY216 ) ) )
                  | ( SY216
                    = ( set_union2 @ SV42 @ SV79 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[281]) ).

thf(324,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ~ ( ( SV7 != SV47 )
            | ~ ( ~ ( subset @ SV7 @ SV47 )
                | ~ ( subset @ SV47 @ SV7 ) ) )
        | ~ ( ~ ~ ( ~ ( subset @ SV7 @ SV47 )
                  | ~ ( subset @ SV47 @ SV7 ) )
            | ( SV7 = SV47 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[286]) ).

thf(325,plain,
    ! [SV80: $i,SV48: $i,SV9: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV9 @ SV48 )
              | ~ ( subset @ SV80 @ SV48 ) )
        | ( subset @ ( set_union2 @ SV9 @ SV80 ) @ SV48 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[288]) ).

thf(326,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ~ ( ( SV49
             != ( singleton @ SV10 ) )
            | ! [SY184: $i] :
                ~ ( ~ ( ~ ( in @ SY184 @ SV49 )
                      | ( SY184 = SV10 ) )
                  | ~ ( ( SY184 != SV10 )
                      | ( in @ SY184 @ SV49 ) ) ) )
        | ~ ( ~ ! [SY185: $i] :
                  ~ ( ~ ( ~ ( in @ SY185 @ SV49 )
                        | ( SY185 = SV10 ) )
                    | ~ ( ( SY185 != SV10 )
                        | ( in @ SY185 @ SV49 ) ) )
            | ( SV49
              = ( singleton @ SV10 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[289]) ).

thf(327,plain,
    ! [SV50: $i,SV11: $i] :
      ( ( ~ ( ~ ( disjoint @ ( singleton @ SV11 ) @ SV50 )
            | ~ ( in @ SV11 @ SV50 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[290]) ).

thf(328,plain,
    ! [SV81: $i,SV51: $i,SV12: $i] :
      ( ( ~ ( subset @ SV12 @ SV51 )
        | ( in @ SV81 @ SV12 )
        | ( subset @ SV12 @ ( set_difference @ SV51 @ ( singleton @ SV81 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[291]) ).

thf(329,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ~ ( ~ ( subset @ SV13 @ ( singleton @ SV52 ) )
            | ( SV13 = empty_set )
            | ( SV13
              = ( singleton @ SV52 ) ) )
        | ~ ( ~ ( ( SV13 = empty_set )
                | ( SV13
                  = ( singleton @ SV52 ) ) )
            | ( subset @ SV13 @ ( singleton @ SV52 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[292]) ).

thf(330,plain,
    ! [SV53: $i,SV14: $i] :
      ( ( ( ~ ( in @ SV14 @ SV53 ) )
        = $true )
      | ( ( subset @ SV14 @ ( union @ SV53 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[293]) ).

thf(331,plain,
    ! [SV15: $i] :
      ( ( ( subset @ SV15 @ empty_set )
        = $false )
      | ( ( SV15 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[294]) ).

thf(332,plain,
    ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[295]) ).

thf(333,plain,
    ! [SV82: $i,SV54: $i,SV16: $i] :
      ( ( ~ ( subset @ SV16 @ SV54 )
        | ( subset @ ( set_difference @ SV16 @ SV82 ) @ ( set_difference @ SV54 @ SV82 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[297]) ).

thf(334,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ~ ( ( SV55
             != ( union @ SV17 ) )
            | ! [SY188: $i] :
                ~ ( ~ ( ~ ( in @ SY188 @ SV55 )
                      | ~ ! [SY127: $i] :
                            ~ ~ ( ~ ( in @ SY188 @ SY127 )
                                | ~ ( in @ SY127 @ SV17 ) ) )
                  | ~ ( ~ ~ ! [SY128: $i] :
                              ~ ~ ( ~ ( in @ SY188 @ SY128 )
                                  | ~ ( in @ SY128 @ SV17 ) )
                      | ( in @ SY188 @ SV55 ) ) ) )
        | ~ ( ~ ! [SY191: $i] :
                  ~ ( ~ ( ~ ( in @ SY191 @ SV55 )
                        | ~ ! [SY130: $i] :
                              ~ ~ ( ~ ( in @ SY191 @ SY130 )
                                  | ~ ( in @ SY130 @ SV17 ) ) )
                    | ~ ( ~ ~ ! [SY131: $i] :
                                ~ ~ ( ~ ( in @ SY191 @ SY131 )
                                    | ~ ( in @ SY131 @ SV17 ) )
                        | ( in @ SY191 @ SV55 ) ) )
            | ( SV55
              = ( union @ SV17 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[298]) ).

thf(335,plain,
    ! [SV56: $i,SV18: $i] :
      ( ( ~ ( ~ ( in @ SV18 @ SV56 )
            | ~ ( empty @ SV56 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[299]) ).

thf(336,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV19 @ SV57 )
                | ~ ! [SY194: $i] :
                      ~ ~ ( ~ ( in @ SY194 @ SV19 )
                          | ~ ( in @ SY194 @ SV57 ) ) )
        | ~ ~ ~ ( ~ ~ ! [SY195: $i] :
                        ~ ~ ( ~ ( in @ SY195 @ SV19 )
                            | ~ ( in @ SY195 @ SV57 ) )
                | ~ ( disjoint @ SV19 @ SV57 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[300]) ).

thf(337,plain,
    ! [SV20: $i] :
      ( ( ~ ( ( SV20 != empty_set )
            | ! [SY136: $i] :
                ~ ( in @ SY136 @ SV20 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[301]) ).

thf(338,plain,
    ! [SV20: $i] :
      ( ( ~ ( ~ ! [SY137: $i] :
                  ~ ( in @ SY137 @ SV20 )
            | ( SV20 = empty_set ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[301]) ).

thf(339,plain,
    ! [SV83: $i,SV58: $i,SV21: $i] :
      ( ( ( ( singleton @ SV21 )
         != ( unordered_pair @ SV58 @ SV83 ) )
        | ( SV21 = SV58 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[302]) ).

thf(340,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ~ ( ~ ( subset @ ( singleton @ SV22 ) @ SV59 )
            | ( in @ SV22 @ SV59 ) )
        | ~ ( ~ ( in @ SV22 @ SV59 )
            | ( subset @ ( singleton @ SV22 ) @ SV59 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[303]) ).

thf(341,plain,
    ! [SV84: $i,SV60: $i,SV23: $i] :
      ( ( ( ( singleton @ SV23 )
         != ( unordered_pair @ SV60 @ SV84 ) )
        | ( SV60 = SV84 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[304]) ).

thf(342,plain,
    ! [SV61: $i,SV24: $i] :
      ( ( ( ~ ( subset @ SV24 @ SV61 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV24 @ SV61 )
          = SV24 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[305]) ).

thf(343,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ~ ( ~ ( ( SV85
                 != ( set_intersection2 @ SV25 @ SV62 ) )
                | ! [SY219: $i] :
                    ~ ( ~ ( ~ ( in @ SY219 @ SV85 )
                          | ~ ( ~ ( in @ SY219 @ SV25 )
                              | ~ ( in @ SY219 @ SV62 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY219 @ SV25 )
                                | ~ ( in @ SY219 @ SV62 ) )
                          | ( in @ SY219 @ SV85 ) ) ) )
            | ~ ( ~ ! [SY220: $i] :
                      ~ ( ~ ( ~ ( in @ SY220 @ SV85 )
                            | ~ ( ~ ( in @ SY220 @ SV25 )
                                | ~ ( in @ SY220 @ SV62 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY220 @ SV25 )
                                  | ~ ( in @ SY220 @ SV62 ) )
                            | ( in @ SY220 @ SV85 ) ) )
                | ( SV85
                  = ( set_intersection2 @ SV25 @ SV62 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[306]) ).

thf(344,plain,
    ! [SV86: $i,SV63: $i,SV26: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV26 @ SV63 )
              | ~ ( disjoint @ SV63 @ SV86 ) )
        | ( disjoint @ SV26 @ SV86 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[307]) ).

thf(345,plain,
    ! [SV64: $i,SV27: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV27 ) @ ( singleton @ SV64 ) ) )
        = $true )
      | ( ( SV27 = SV64 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[308]) ).

thf(346,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ~ ( ~ ( subset @ SV28 @ SV65 )
            | ! [SY202: $i] :
                ( ~ ( in @ SY202 @ SV28 )
                | ( in @ SY202 @ SV65 ) ) )
        | ~ ( ~ ! [SY203: $i] :
                  ( ~ ( in @ SY203 @ SV28 )
                  | ( in @ SY203 @ SV65 ) )
            | ( subset @ SV28 @ SV65 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[309]) ).

thf(347,plain,
    ! [SV66: $i,SV29: $i] :
      ( ( ( ~ ( subset @ SV29 @ SV66 ) )
        = $true )
      | ( ( ( set_union2 @ SV29 @ SV66 )
          = SV66 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[310]) ).

thf(348,plain,
    ! [SV87: $i,SV67: $i,SV30: $i] :
      ( ( ~ ( subset @ SV30 @ SV67 )
        | ( subset @ ( set_intersection2 @ SV30 @ SV87 ) @ ( set_intersection2 @ SV67 @ SV87 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[311]) ).

thf(349,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ~ ( ~ ( proper_subset @ SV31 @ SV68 )
            | ~ ( ~ ( subset @ SV31 @ SV68 )
                | ~ ( ( SV31 != SV68 ) ) ) )
        | ~ ( ~ ~ ( ~ ( subset @ SV31 @ SV68 )
                  | ~ ( ( SV31 != SV68 ) ) )
            | ( proper_subset @ SV31 @ SV68 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[312]) ).

thf(350,plain,
    ! [SV69: $i,SV32: $i] :
      ( ( ( ~ ( in @ SV32 @ SV69 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV32 ) @ SV69 )
          = SV69 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[313]) ).

thf(351,plain,
    ! [SV70: $i,SV33: $i] :
      ( ( ( ~ ! [SY205: $i] :
                ~ ( ~ ( ~ ( in @ SY205 @ SV33 )
                      | ( in @ SY205 @ SV70 ) )
                  | ~ ( ~ ( in @ SY205 @ SV70 )
                      | ( in @ SY205 @ SV33 ) ) ) )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[314]) ).

thf(352,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ~ ( ~ ( ( SV88
                 != ( set_difference @ SV34 @ SV71 ) )
                | ! [SY221: $i] :
                    ~ ( ~ ( ~ ( in @ SY221 @ SV88 )
                          | ~ ( ~ ( in @ SY221 @ SV34 )
                              | ~ ~ ( in @ SY221 @ SV71 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY221 @ SV34 )
                                | ~ ~ ( in @ SY221 @ SV71 ) )
                          | ( in @ SY221 @ SV88 ) ) ) )
            | ~ ( ~ ! [SY222: $i] :
                      ~ ( ~ ( ~ ( in @ SY222 @ SV88 )
                            | ~ ( ~ ( in @ SY222 @ SV34 )
                                | ~ ~ ( in @ SY222 @ SV71 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY222 @ SV34 )
                                  | ~ ~ ( in @ SY222 @ SV71 ) )
                            | ( in @ SY222 @ SV88 ) ) )
                | ( SV88
                  = ( set_difference @ SV34 @ SV71 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[315]) ).

thf(353,plain,
    ! [SV72: $i,SV35: $i] :
      ( ( ( ~ ( in @ SV35 @ SV72 ) )
        = $true )
      | ( ( ~ ( in @ SV72 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[316]) ).

thf(354,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ~ ( ~ ( ( SV89
                 != ( unordered_pair @ SV36 @ SV73 ) )
                | ! [SY223: $i] :
                    ~ ( ~ ( ~ ( in @ SY223 @ SV89 )
                          | ( SY223 = SV36 )
                          | ( SY223 = SV73 ) )
                      | ~ ( ~ ( ( SY223 = SV36 )
                              | ( SY223 = SV73 ) )
                          | ( in @ SY223 @ SV89 ) ) ) )
            | ~ ( ~ ! [SY224: $i] :
                      ~ ( ~ ( ~ ( in @ SY224 @ SV89 )
                            | ( SY224 = SV36 )
                            | ( SY224 = SV73 ) )
                        | ~ ( ~ ( ( SY224 = SV36 )
                                | ( SY224 = SV73 ) )
                            | ( in @ SY224 @ SV89 ) ) )
                | ( SV89
                  = ( unordered_pair @ SV36 @ SV73 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[317]) ).

thf(355,plain,
    ! [SV90: $i,SV74: $i,SV37: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV37 @ SV74 )
              | ~ ( subset @ SV37 @ SV90 ) )
        | ( subset @ SV37 @ ( set_intersection2 @ SV74 @ SV90 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[318]) ).

thf(356,plain,
    ! [SV91: $i,SV75: $i,SV38: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV38 @ SV75 )
              | ~ ( subset @ SV75 @ SV91 ) )
        | ( subset @ SV38 @ SV91 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[319]) ).

thf(357,plain,
    ! [SV76: $i,SV39: $i] :
      ( ( ( ~ ~ ( in @ SV39 @ SV76 ) )
        = $true )
      | ( ( disjoint @ ( singleton @ SV39 ) @ SV76 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[320]) ).

thf(358,plain,
    ! [SV77: $i,SV40: $i] :
      ( ( ~ ( ~ ( subset @ SV40 @ SV77 )
            | ~ ( proper_subset @ SV77 @ SV40 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[321]) ).

thf(359,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ~ ( ( SV78
             != ( powerset @ SV41 ) )
            | ! [SY214: $i] :
                ~ ( ~ ( ~ ( in @ SY214 @ SV78 )
                      | ( subset @ SY214 @ SV41 ) )
                  | ~ ( ~ ( subset @ SY214 @ SV41 )
                      | ( in @ SY214 @ SV78 ) ) ) )
        | ~ ( ~ ! [SY215: $i] :
                  ~ ( ~ ( ~ ( in @ SY215 @ SV78 )
                        | ( subset @ SY215 @ SV41 ) )
                    | ~ ( ~ ( subset @ SY215 @ SV41 )
                        | ( in @ SY215 @ SV78 ) ) )
            | ( SV78
              = ( powerset @ SV41 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[322]) ).

thf(360,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ~ ( ~ ( ( SV92
                 != ( set_union2 @ SV42 @ SV79 ) )
                | ! [SY225: $i] :
                    ~ ( ~ ( ~ ( in @ SY225 @ SV92 )
                          | ( in @ SY225 @ SV42 )
                          | ( in @ SY225 @ SV79 ) )
                      | ~ ( ~ ( ( in @ SY225 @ SV42 )
                              | ( in @ SY225 @ SV79 ) )
                          | ( in @ SY225 @ SV92 ) ) ) )
            | ~ ( ~ ! [SY226: $i] :
                      ~ ( ~ ( ~ ( in @ SY226 @ SV92 )
                            | ( in @ SY226 @ SV42 )
                            | ( in @ SY226 @ SV79 ) )
                        | ~ ( ~ ( ( in @ SY226 @ SV42 )
                                | ( in @ SY226 @ SV79 ) )
                            | ( in @ SY226 @ SV92 ) ) )
                | ( SV92
                  = ( set_union2 @ SV42 @ SV79 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[323]) ).

thf(361,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ~ ( ( SV7 != SV47 )
            | ~ ( ~ ( subset @ SV7 @ SV47 )
                | ~ ( subset @ SV47 @ SV7 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[324]) ).

thf(362,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ~ ( ~ ~ ( ~ ( subset @ SV7 @ SV47 )
                  | ~ ( subset @ SV47 @ SV7 ) )
            | ( SV7 = SV47 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[324]) ).

thf(363,plain,
    ! [SV80: $i,SV48: $i,SV9: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV9 @ SV48 )
                | ~ ( subset @ SV80 @ SV48 ) ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV9 @ SV80 ) @ SV48 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[325]) ).

thf(364,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ~ ( ( SV49
             != ( singleton @ SV10 ) )
            | ! [SY184: $i] :
                ~ ( ~ ( ~ ( in @ SY184 @ SV49 )
                      | ( SY184 = SV10 ) )
                  | ~ ( ( SY184 != SV10 )
                      | ( in @ SY184 @ SV49 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[326]) ).

thf(365,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ~ ( ~ ! [SY185: $i] :
                  ~ ( ~ ( ~ ( in @ SY185 @ SV49 )
                        | ( SY185 = SV10 ) )
                    | ~ ( ( SY185 != SV10 )
                        | ( in @ SY185 @ SV49 ) ) )
            | ( SV49
              = ( singleton @ SV10 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[326]) ).

thf(366,plain,
    ! [SV50: $i,SV11: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV11 ) @ SV50 )
        | ~ ( in @ SV11 @ SV50 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[327]) ).

thf(367,plain,
    ! [SV81: $i,SV51: $i,SV12: $i] :
      ( ( ( ~ ( subset @ SV12 @ SV51 ) )
        = $true )
      | ( ( ( in @ SV81 @ SV12 )
          | ( subset @ SV12 @ ( set_difference @ SV51 @ ( singleton @ SV81 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[328]) ).

thf(368,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ~ ( ~ ( subset @ SV13 @ ( singleton @ SV52 ) )
            | ( SV13 = empty_set )
            | ( SV13
              = ( singleton @ SV52 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[329]) ).

thf(369,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ~ ( ~ ( ( SV13 = empty_set )
                | ( SV13
                  = ( singleton @ SV52 ) ) )
            | ( subset @ SV13 @ ( singleton @ SV52 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[329]) ).

thf(370,plain,
    ! [SV53: $i,SV14: $i] :
      ( ( ( in @ SV14 @ SV53 )
        = $false )
      | ( ( subset @ SV14 @ ( union @ SV53 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[330]) ).

thf(371,plain,
    ! [SV82: $i,SV54: $i,SV16: $i] :
      ( ( ( ~ ( subset @ SV16 @ SV54 ) )
        = $true )
      | ( ( subset @ ( set_difference @ SV16 @ SV82 ) @ ( set_difference @ SV54 @ SV82 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[333]) ).

thf(372,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ~ ( ( SV55
             != ( union @ SV17 ) )
            | ! [SY188: $i] :
                ~ ( ~ ( ~ ( in @ SY188 @ SV55 )
                      | ~ ! [SY127: $i] :
                            ~ ~ ( ~ ( in @ SY188 @ SY127 )
                                | ~ ( in @ SY127 @ SV17 ) ) )
                  | ~ ( ~ ~ ! [SY128: $i] :
                              ~ ~ ( ~ ( in @ SY188 @ SY128 )
                                  | ~ ( in @ SY128 @ SV17 ) )
                      | ( in @ SY188 @ SV55 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[334]) ).

thf(373,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ~ ( ~ ! [SY191: $i] :
                  ~ ( ~ ( ~ ( in @ SY191 @ SV55 )
                        | ~ ! [SY130: $i] :
                              ~ ~ ( ~ ( in @ SY191 @ SY130 )
                                  | ~ ( in @ SY130 @ SV17 ) ) )
                    | ~ ( ~ ~ ! [SY131: $i] :
                                ~ ~ ( ~ ( in @ SY191 @ SY131 )
                                    | ~ ( in @ SY131 @ SV17 ) )
                        | ( in @ SY191 @ SV55 ) ) )
            | ( SV55
              = ( union @ SV17 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[334]) ).

thf(374,plain,
    ! [SV56: $i,SV18: $i] :
      ( ( ~ ( in @ SV18 @ SV56 )
        | ~ ( empty @ SV56 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[335]) ).

thf(375,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV19 @ SV57 )
                | ~ ! [SY194: $i] :
                      ~ ~ ( ~ ( in @ SY194 @ SV19 )
                          | ~ ( in @ SY194 @ SV57 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[336]) ).

thf(376,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ~ ~ ( ~ ~ ! [SY195: $i] :
                        ~ ~ ( ~ ( in @ SY195 @ SV19 )
                            | ~ ( in @ SY195 @ SV57 ) )
                | ~ ( disjoint @ SV19 @ SV57 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[336]) ).

thf(377,plain,
    ! [SV20: $i] :
      ( ( ( SV20 != empty_set )
        | ! [SY136: $i] :
            ~ ( in @ SY136 @ SV20 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[337]) ).

thf(378,plain,
    ! [SV20: $i] :
      ( ( ~ ! [SY137: $i] :
              ~ ( in @ SY137 @ SV20 )
        | ( SV20 = empty_set ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[338]) ).

thf(379,plain,
    ! [SV83: $i,SV58: $i,SV21: $i] :
      ( ( ( ( singleton @ SV21 )
         != ( unordered_pair @ SV58 @ SV83 ) )
        = $true )
      | ( ( SV21 = SV58 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[339]) ).

thf(380,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ~ ( ~ ( subset @ ( singleton @ SV22 ) @ SV59 )
            | ( in @ SV22 @ SV59 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[340]) ).

thf(381,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ~ ( ~ ( in @ SV22 @ SV59 )
            | ( subset @ ( singleton @ SV22 ) @ SV59 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[340]) ).

thf(382,plain,
    ! [SV84: $i,SV60: $i,SV23: $i] :
      ( ( ( ( singleton @ SV23 )
         != ( unordered_pair @ SV60 @ SV84 ) )
        = $true )
      | ( ( SV60 = SV84 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[341]) ).

thf(383,plain,
    ! [SV61: $i,SV24: $i] :
      ( ( ( subset @ SV24 @ SV61 )
        = $false )
      | ( ( ( set_intersection2 @ SV24 @ SV61 )
          = SV24 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[342]) ).

thf(384,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ~ ( ( SV85
             != ( set_intersection2 @ SV25 @ SV62 ) )
            | ! [SY219: $i] :
                ~ ( ~ ( ~ ( in @ SY219 @ SV85 )
                      | ~ ( ~ ( in @ SY219 @ SV25 )
                          | ~ ( in @ SY219 @ SV62 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY219 @ SV25 )
                            | ~ ( in @ SY219 @ SV62 ) )
                      | ( in @ SY219 @ SV85 ) ) ) )
        | ~ ( ~ ! [SY220: $i] :
                  ~ ( ~ ( ~ ( in @ SY220 @ SV85 )
                        | ~ ( ~ ( in @ SY220 @ SV25 )
                            | ~ ( in @ SY220 @ SV62 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY220 @ SV25 )
                              | ~ ( in @ SY220 @ SV62 ) )
                        | ( in @ SY220 @ SV85 ) ) )
            | ( SV85
              = ( set_intersection2 @ SV25 @ SV62 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[343]) ).

thf(385,plain,
    ! [SV86: $i,SV63: $i,SV26: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV26 @ SV63 )
                | ~ ( disjoint @ SV63 @ SV86 ) ) )
        = $true )
      | ( ( disjoint @ SV26 @ SV86 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[344]) ).

thf(386,plain,
    ! [SV64: $i,SV27: $i] :
      ( ( ( subset @ ( singleton @ SV27 ) @ ( singleton @ SV64 ) )
        = $false )
      | ( ( SV27 = SV64 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[345]) ).

thf(387,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ~ ( ~ ( subset @ SV28 @ SV65 )
            | ! [SY202: $i] :
                ( ~ ( in @ SY202 @ SV28 )
                | ( in @ SY202 @ SV65 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[346]) ).

thf(388,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ~ ( ~ ! [SY203: $i] :
                  ( ~ ( in @ SY203 @ SV28 )
                  | ( in @ SY203 @ SV65 ) )
            | ( subset @ SV28 @ SV65 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[346]) ).

thf(389,plain,
    ! [SV66: $i,SV29: $i] :
      ( ( ( subset @ SV29 @ SV66 )
        = $false )
      | ( ( ( set_union2 @ SV29 @ SV66 )
          = SV66 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[347]) ).

thf(390,plain,
    ! [SV87: $i,SV67: $i,SV30: $i] :
      ( ( ( ~ ( subset @ SV30 @ SV67 ) )
        = $true )
      | ( ( subset @ ( set_intersection2 @ SV30 @ SV87 ) @ ( set_intersection2 @ SV67 @ SV87 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[348]) ).

thf(391,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ~ ( ~ ( proper_subset @ SV31 @ SV68 )
            | ~ ( ~ ( subset @ SV31 @ SV68 )
                | ~ ( ( SV31 != SV68 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[349]) ).

thf(392,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ~ ( ~ ~ ( ~ ( subset @ SV31 @ SV68 )
                  | ~ ( ( SV31 != SV68 ) ) )
            | ( proper_subset @ SV31 @ SV68 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[349]) ).

thf(393,plain,
    ! [SV69: $i,SV32: $i] :
      ( ( ( in @ SV32 @ SV69 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV32 ) @ SV69 )
          = SV69 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[350]) ).

thf(394,plain,
    ! [SV70: $i,SV33: $i] :
      ( ( ( ! [SY205: $i] :
              ~ ( ~ ( ~ ( in @ SY205 @ SV33 )
                    | ( in @ SY205 @ SV70 ) )
                | ~ ( ~ ( in @ SY205 @ SV70 )
                    | ( in @ SY205 @ SV33 ) ) ) )
        = $false )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[351]) ).

thf(395,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ~ ( ( SV88
             != ( set_difference @ SV34 @ SV71 ) )
            | ! [SY221: $i] :
                ~ ( ~ ( ~ ( in @ SY221 @ SV88 )
                      | ~ ( ~ ( in @ SY221 @ SV34 )
                          | ~ ~ ( in @ SY221 @ SV71 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY221 @ SV34 )
                            | ~ ~ ( in @ SY221 @ SV71 ) )
                      | ( in @ SY221 @ SV88 ) ) ) )
        | ~ ( ~ ! [SY222: $i] :
                  ~ ( ~ ( ~ ( in @ SY222 @ SV88 )
                        | ~ ( ~ ( in @ SY222 @ SV34 )
                            | ~ ~ ( in @ SY222 @ SV71 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY222 @ SV34 )
                              | ~ ~ ( in @ SY222 @ SV71 ) )
                        | ( in @ SY222 @ SV88 ) ) )
            | ( SV88
              = ( set_difference @ SV34 @ SV71 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[352]) ).

thf(396,plain,
    ! [SV72: $i,SV35: $i] :
      ( ( ( in @ SV35 @ SV72 )
        = $false )
      | ( ( ~ ( in @ SV72 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[353]) ).

thf(397,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ~ ( ( SV89
             != ( unordered_pair @ SV36 @ SV73 ) )
            | ! [SY223: $i] :
                ~ ( ~ ( ~ ( in @ SY223 @ SV89 )
                      | ( SY223 = SV36 )
                      | ( SY223 = SV73 ) )
                  | ~ ( ~ ( ( SY223 = SV36 )
                          | ( SY223 = SV73 ) )
                      | ( in @ SY223 @ SV89 ) ) ) )
        | ~ ( ~ ! [SY224: $i] :
                  ~ ( ~ ( ~ ( in @ SY224 @ SV89 )
                        | ( SY224 = SV36 )
                        | ( SY224 = SV73 ) )
                    | ~ ( ~ ( ( SY224 = SV36 )
                            | ( SY224 = SV73 ) )
                        | ( in @ SY224 @ SV89 ) ) )
            | ( SV89
              = ( unordered_pair @ SV36 @ SV73 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[354]) ).

thf(398,plain,
    ! [SV90: $i,SV74: $i,SV37: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV37 @ SV74 )
                | ~ ( subset @ SV37 @ SV90 ) ) )
        = $true )
      | ( ( subset @ SV37 @ ( set_intersection2 @ SV74 @ SV90 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[355]) ).

thf(399,plain,
    ! [SV91: $i,SV75: $i,SV38: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV38 @ SV75 )
                | ~ ( subset @ SV75 @ SV91 ) ) )
        = $true )
      | ( ( subset @ SV38 @ SV91 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[356]) ).

thf(400,plain,
    ! [SV76: $i,SV39: $i] :
      ( ( ( ~ ( in @ SV39 @ SV76 ) )
        = $false )
      | ( ( disjoint @ ( singleton @ SV39 ) @ SV76 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[357]) ).

thf(401,plain,
    ! [SV77: $i,SV40: $i] :
      ( ( ~ ( subset @ SV40 @ SV77 )
        | ~ ( proper_subset @ SV77 @ SV40 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[358]) ).

thf(402,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ~ ( ( SV78
             != ( powerset @ SV41 ) )
            | ! [SY214: $i] :
                ~ ( ~ ( ~ ( in @ SY214 @ SV78 )
                      | ( subset @ SY214 @ SV41 ) )
                  | ~ ( ~ ( subset @ SY214 @ SV41 )
                      | ( in @ SY214 @ SV78 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[359]) ).

thf(403,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ~ ( ~ ! [SY215: $i] :
                  ~ ( ~ ( ~ ( in @ SY215 @ SV78 )
                        | ( subset @ SY215 @ SV41 ) )
                    | ~ ( ~ ( subset @ SY215 @ SV41 )
                        | ( in @ SY215 @ SV78 ) ) )
            | ( SV78
              = ( powerset @ SV41 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[359]) ).

thf(404,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ~ ( ( SV92
             != ( set_union2 @ SV42 @ SV79 ) )
            | ! [SY225: $i] :
                ~ ( ~ ( ~ ( in @ SY225 @ SV92 )
                      | ( in @ SY225 @ SV42 )
                      | ( in @ SY225 @ SV79 ) )
                  | ~ ( ~ ( ( in @ SY225 @ SV42 )
                          | ( in @ SY225 @ SV79 ) )
                      | ( in @ SY225 @ SV92 ) ) ) )
        | ~ ( ~ ! [SY226: $i] :
                  ~ ( ~ ( ~ ( in @ SY226 @ SV92 )
                        | ( in @ SY226 @ SV42 )
                        | ( in @ SY226 @ SV79 ) )
                    | ~ ( ~ ( ( in @ SY226 @ SV42 )
                            | ( in @ SY226 @ SV79 ) )
                        | ( in @ SY226 @ SV92 ) ) )
            | ( SV92
              = ( set_union2 @ SV42 @ SV79 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[360]) ).

thf(405,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( SV7 != SV47 )
        | ~ ( ~ ( subset @ SV7 @ SV47 )
            | ~ ( subset @ SV47 @ SV7 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[361]) ).

thf(406,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV7 @ SV47 )
              | ~ ( subset @ SV47 @ SV7 ) )
        | ( SV7 = SV47 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[362]) ).

thf(407,plain,
    ! [SV80: $i,SV48: $i,SV9: $i] :
      ( ( ( ~ ( ~ ( subset @ SV9 @ SV48 )
              | ~ ( subset @ SV80 @ SV48 ) ) )
        = $false )
      | ( ( subset @ ( set_union2 @ SV9 @ SV80 ) @ SV48 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[363]) ).

thf(408,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ( SV49
         != ( singleton @ SV10 ) )
        | ! [SY184: $i] :
            ~ ( ~ ( ~ ( in @ SY184 @ SV49 )
                  | ( SY184 = SV10 ) )
              | ~ ( ( SY184 != SV10 )
                  | ( in @ SY184 @ SV49 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[364]) ).

thf(409,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ~ ! [SY185: $i] :
              ~ ( ~ ( ~ ( in @ SY185 @ SV49 )
                    | ( SY185 = SV10 ) )
                | ~ ( ( SY185 != SV10 )
                    | ( in @ SY185 @ SV49 ) ) )
        | ( SV49
          = ( singleton @ SV10 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[365]) ).

thf(410,plain,
    ! [SV50: $i,SV11: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV11 ) @ SV50 ) )
        = $true )
      | ( ( ~ ( in @ SV11 @ SV50 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[366]) ).

thf(411,plain,
    ! [SV81: $i,SV51: $i,SV12: $i] :
      ( ( ( subset @ SV12 @ SV51 )
        = $false )
      | ( ( ( in @ SV81 @ SV12 )
          | ( subset @ SV12 @ ( set_difference @ SV51 @ ( singleton @ SV81 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[367]) ).

thf(412,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ~ ( subset @ SV13 @ ( singleton @ SV52 ) )
        | ( SV13 = empty_set )
        | ( SV13
          = ( singleton @ SV52 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[368]) ).

thf(413,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ~ ( ( SV13 = empty_set )
            | ( SV13
              = ( singleton @ SV52 ) ) )
        | ( subset @ SV13 @ ( singleton @ SV52 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[369]) ).

thf(414,plain,
    ! [SV82: $i,SV54: $i,SV16: $i] :
      ( ( ( subset @ SV16 @ SV54 )
        = $false )
      | ( ( subset @ ( set_difference @ SV16 @ SV82 ) @ ( set_difference @ SV54 @ SV82 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[371]) ).

thf(415,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ( SV55
         != ( union @ SV17 ) )
        | ! [SY188: $i] :
            ~ ( ~ ( ~ ( in @ SY188 @ SV55 )
                  | ~ ! [SY127: $i] :
                        ~ ~ ( ~ ( in @ SY188 @ SY127 )
                            | ~ ( in @ SY127 @ SV17 ) ) )
              | ~ ( ~ ~ ! [SY128: $i] :
                          ~ ~ ( ~ ( in @ SY188 @ SY128 )
                              | ~ ( in @ SY128 @ SV17 ) )
                  | ( in @ SY188 @ SV55 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[372]) ).

thf(416,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ~ ! [SY191: $i] :
              ~ ( ~ ( ~ ( in @ SY191 @ SV55 )
                    | ~ ! [SY130: $i] :
                          ~ ~ ( ~ ( in @ SY191 @ SY130 )
                              | ~ ( in @ SY130 @ SV17 ) ) )
                | ~ ( ~ ~ ! [SY131: $i] :
                            ~ ~ ( ~ ( in @ SY191 @ SY131 )
                                | ~ ( in @ SY131 @ SV17 ) )
                    | ( in @ SY191 @ SV55 ) ) )
        | ( SV55
          = ( union @ SV17 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[373]) ).

thf(417,plain,
    ! [SV56: $i,SV18: $i] :
      ( ( ( ~ ( in @ SV18 @ SV56 ) )
        = $true )
      | ( ( ~ ( empty @ SV56 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[374]) ).

thf(418,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ~ ( ~ ~ ( disjoint @ SV19 @ SV57 )
              | ~ ! [SY194: $i] :
                    ~ ~ ( ~ ( in @ SY194 @ SV19 )
                        | ~ ( in @ SY194 @ SV57 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[375]) ).

thf(419,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ~ ( ~ ~ ! [SY195: $i] :
                      ~ ~ ( ~ ( in @ SY195 @ SV19 )
                          | ~ ( in @ SY195 @ SV57 ) )
              | ~ ( disjoint @ SV19 @ SV57 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[376]) ).

thf(420,plain,
    ! [SV20: $i] :
      ( ( ( SV20 != empty_set )
        = $true )
      | ( ( ! [SY136: $i] :
              ~ ( in @ SY136 @ SV20 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[377]) ).

thf(421,plain,
    ! [SV20: $i] :
      ( ( ( ~ ! [SY137: $i] :
                ~ ( in @ SY137 @ SV20 ) )
        = $true )
      | ( ( SV20 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[378]) ).

thf(422,plain,
    ! [SV83: $i,SV58: $i,SV21: $i] :
      ( ( ( ( singleton @ SV21 )
          = ( unordered_pair @ SV58 @ SV83 ) )
        = $false )
      | ( ( SV21 = SV58 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[379]) ).

thf(423,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ~ ( subset @ ( singleton @ SV22 ) @ SV59 )
        | ( in @ SV22 @ SV59 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[380]) ).

thf(424,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ~ ( in @ SV22 @ SV59 )
        | ( subset @ ( singleton @ SV22 ) @ SV59 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[381]) ).

thf(425,plain,
    ! [SV84: $i,SV60: $i,SV23: $i] :
      ( ( ( ( singleton @ SV23 )
          = ( unordered_pair @ SV60 @ SV84 ) )
        = $false )
      | ( ( SV60 = SV84 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[382]) ).

thf(426,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ~ ( ( SV85
             != ( set_intersection2 @ SV25 @ SV62 ) )
            | ! [SY219: $i] :
                ~ ( ~ ( ~ ( in @ SY219 @ SV85 )
                      | ~ ( ~ ( in @ SY219 @ SV25 )
                          | ~ ( in @ SY219 @ SV62 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY219 @ SV25 )
                            | ~ ( in @ SY219 @ SV62 ) )
                      | ( in @ SY219 @ SV85 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[384]) ).

thf(427,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ~ ( ~ ! [SY220: $i] :
                  ~ ( ~ ( ~ ( in @ SY220 @ SV85 )
                        | ~ ( ~ ( in @ SY220 @ SV25 )
                            | ~ ( in @ SY220 @ SV62 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY220 @ SV25 )
                              | ~ ( in @ SY220 @ SV62 ) )
                        | ( in @ SY220 @ SV85 ) ) )
            | ( SV85
              = ( set_intersection2 @ SV25 @ SV62 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[384]) ).

thf(428,plain,
    ! [SV86: $i,SV63: $i,SV26: $i] :
      ( ( ( ~ ( ~ ( subset @ SV26 @ SV63 )
              | ~ ( disjoint @ SV63 @ SV86 ) ) )
        = $false )
      | ( ( disjoint @ SV26 @ SV86 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[385]) ).

thf(429,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ~ ( subset @ SV28 @ SV65 )
        | ! [SY202: $i] :
            ( ~ ( in @ SY202 @ SV28 )
            | ( in @ SY202 @ SV65 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[387]) ).

thf(430,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ~ ! [SY203: $i] :
              ( ~ ( in @ SY203 @ SV28 )
              | ( in @ SY203 @ SV65 ) )
        | ( subset @ SV28 @ SV65 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[388]) ).

thf(431,plain,
    ! [SV87: $i,SV67: $i,SV30: $i] :
      ( ( ( subset @ SV30 @ SV67 )
        = $false )
      | ( ( subset @ ( set_intersection2 @ SV30 @ SV87 ) @ ( set_intersection2 @ SV67 @ SV87 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[390]) ).

thf(432,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ~ ( proper_subset @ SV31 @ SV68 )
        | ~ ( ~ ( subset @ SV31 @ SV68 )
            | ~ ( ( SV31 != SV68 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[391]) ).

thf(433,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV31 @ SV68 )
              | ~ ( ( SV31 != SV68 ) ) )
        | ( proper_subset @ SV31 @ SV68 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[392]) ).

thf(434,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
                  | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 ) )
              | ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
                  | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) ) ) )
        = $false )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[394]) ).

thf(435,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ~ ( ( SV88
             != ( set_difference @ SV34 @ SV71 ) )
            | ! [SY221: $i] :
                ~ ( ~ ( ~ ( in @ SY221 @ SV88 )
                      | ~ ( ~ ( in @ SY221 @ SV34 )
                          | ~ ~ ( in @ SY221 @ SV71 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY221 @ SV34 )
                            | ~ ~ ( in @ SY221 @ SV71 ) )
                      | ( in @ SY221 @ SV88 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[395]) ).

thf(436,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ~ ( ~ ! [SY222: $i] :
                  ~ ( ~ ( ~ ( in @ SY222 @ SV88 )
                        | ~ ( ~ ( in @ SY222 @ SV34 )
                            | ~ ~ ( in @ SY222 @ SV71 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY222 @ SV34 )
                              | ~ ~ ( in @ SY222 @ SV71 ) )
                        | ( in @ SY222 @ SV88 ) ) )
            | ( SV88
              = ( set_difference @ SV34 @ SV71 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[395]) ).

thf(437,plain,
    ! [SV35: $i,SV72: $i] :
      ( ( ( in @ SV72 @ SV35 )
        = $false )
      | ( ( in @ SV35 @ SV72 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[396]) ).

thf(438,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ~ ( ( SV89
             != ( unordered_pair @ SV36 @ SV73 ) )
            | ! [SY223: $i] :
                ~ ( ~ ( ~ ( in @ SY223 @ SV89 )
                      | ( SY223 = SV36 )
                      | ( SY223 = SV73 ) )
                  | ~ ( ~ ( ( SY223 = SV36 )
                          | ( SY223 = SV73 ) )
                      | ( in @ SY223 @ SV89 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[397]) ).

thf(439,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ~ ( ~ ! [SY224: $i] :
                  ~ ( ~ ( ~ ( in @ SY224 @ SV89 )
                        | ( SY224 = SV36 )
                        | ( SY224 = SV73 ) )
                    | ~ ( ~ ( ( SY224 = SV36 )
                            | ( SY224 = SV73 ) )
                        | ( in @ SY224 @ SV89 ) ) )
            | ( SV89
              = ( unordered_pair @ SV36 @ SV73 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[397]) ).

thf(440,plain,
    ! [SV90: $i,SV74: $i,SV37: $i] :
      ( ( ( ~ ( ~ ( subset @ SV37 @ SV74 )
              | ~ ( subset @ SV37 @ SV90 ) ) )
        = $false )
      | ( ( subset @ SV37 @ ( set_intersection2 @ SV74 @ SV90 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[398]) ).

thf(441,plain,
    ! [SV91: $i,SV75: $i,SV38: $i] :
      ( ( ( ~ ( ~ ( subset @ SV38 @ SV75 )
              | ~ ( subset @ SV75 @ SV91 ) ) )
        = $false )
      | ( ( subset @ SV38 @ SV91 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[399]) ).

thf(442,plain,
    ! [SV76: $i,SV39: $i] :
      ( ( ( in @ SV39 @ SV76 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV39 ) @ SV76 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[400]) ).

thf(443,plain,
    ! [SV77: $i,SV40: $i] :
      ( ( ( ~ ( subset @ SV40 @ SV77 ) )
        = $true )
      | ( ( ~ ( proper_subset @ SV77 @ SV40 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[401]) ).

thf(444,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ( SV78
         != ( powerset @ SV41 ) )
        | ! [SY214: $i] :
            ~ ( ~ ( ~ ( in @ SY214 @ SV78 )
                  | ( subset @ SY214 @ SV41 ) )
              | ~ ( ~ ( subset @ SY214 @ SV41 )
                  | ( in @ SY214 @ SV78 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[402]) ).

thf(445,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ~ ! [SY215: $i] :
              ~ ( ~ ( ~ ( in @ SY215 @ SV78 )
                    | ( subset @ SY215 @ SV41 ) )
                | ~ ( ~ ( subset @ SY215 @ SV41 )
                    | ( in @ SY215 @ SV78 ) ) )
        | ( SV78
          = ( powerset @ SV41 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[403]) ).

thf(446,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ~ ( ( SV92
             != ( set_union2 @ SV42 @ SV79 ) )
            | ! [SY225: $i] :
                ~ ( ~ ( ~ ( in @ SY225 @ SV92 )
                      | ( in @ SY225 @ SV42 )
                      | ( in @ SY225 @ SV79 ) )
                  | ~ ( ~ ( ( in @ SY225 @ SV42 )
                          | ( in @ SY225 @ SV79 ) )
                      | ( in @ SY225 @ SV92 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[404]) ).

thf(447,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ~ ( ~ ! [SY226: $i] :
                  ~ ( ~ ( ~ ( in @ SY226 @ SV92 )
                        | ( in @ SY226 @ SV42 )
                        | ( in @ SY226 @ SV79 ) )
                    | ~ ( ~ ( ( in @ SY226 @ SV42 )
                            | ( in @ SY226 @ SV79 ) )
                        | ( in @ SY226 @ SV92 ) ) )
            | ( SV92
              = ( set_union2 @ SV42 @ SV79 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[404]) ).

thf(448,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( SV7 != SV47 )
        = $true )
      | ( ( ~ ( ~ ( subset @ SV7 @ SV47 )
              | ~ ( subset @ SV47 @ SV7 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[405]) ).

thf(449,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV7 @ SV47 )
                | ~ ( subset @ SV47 @ SV7 ) ) )
        = $true )
      | ( ( SV7 = SV47 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[406]) ).

thf(450,plain,
    ! [SV80: $i,SV48: $i,SV9: $i] :
      ( ( ( ~ ( subset @ SV9 @ SV48 )
          | ~ ( subset @ SV80 @ SV48 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV9 @ SV80 ) @ SV48 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[407]) ).

thf(451,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ( SV49
         != ( singleton @ SV10 ) )
        = $true )
      | ( ( ! [SY184: $i] :
              ~ ( ~ ( ~ ( in @ SY184 @ SV49 )
                    | ( SY184 = SV10 ) )
                | ~ ( ( SY184 != SV10 )
                    | ( in @ SY184 @ SV49 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[408]) ).

thf(452,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ( ~ ! [SY185: $i] :
                ~ ( ~ ( ~ ( in @ SY185 @ SV49 )
                      | ( SY185 = SV10 ) )
                  | ~ ( ( SY185 != SV10 )
                      | ( in @ SY185 @ SV49 ) ) ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[409]) ).

thf(453,plain,
    ! [SV50: $i,SV11: $i] :
      ( ( ( disjoint @ ( singleton @ SV11 ) @ SV50 )
        = $false )
      | ( ( ~ ( in @ SV11 @ SV50 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[410]) ).

thf(454,plain,
    ! [SV51: $i,SV12: $i,SV81: $i] :
      ( ( ( in @ SV81 @ SV12 )
        = $true )
      | ( ( subset @ SV12 @ ( set_difference @ SV51 @ ( singleton @ SV81 ) ) )
        = $true )
      | ( ( subset @ SV12 @ SV51 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[411]) ).

thf(455,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ( ~ ( subset @ SV13 @ ( singleton @ SV52 ) ) )
        = $true )
      | ( ( ( SV13 = empty_set )
          | ( SV13
            = ( singleton @ SV52 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[412]) ).

thf(456,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ( ~ ( ( SV13 = empty_set )
              | ( SV13
                = ( singleton @ SV52 ) ) ) )
        = $true )
      | ( ( subset @ SV13 @ ( singleton @ SV52 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[413]) ).

thf(457,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ( SV55
         != ( union @ SV17 ) )
        = $true )
      | ( ( ! [SY188: $i] :
              ~ ( ~ ( ~ ( in @ SY188 @ SV55 )
                    | ~ ! [SY127: $i] :
                          ~ ~ ( ~ ( in @ SY188 @ SY127 )
                              | ~ ( in @ SY127 @ SV17 ) ) )
                | ~ ( ~ ~ ! [SY128: $i] :
                            ~ ~ ( ~ ( in @ SY188 @ SY128 )
                                | ~ ( in @ SY128 @ SV17 ) )
                    | ( in @ SY188 @ SV55 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[415]) ).

thf(458,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ( ~ ! [SY191: $i] :
                ~ ( ~ ( ~ ( in @ SY191 @ SV55 )
                      | ~ ! [SY130: $i] :
                            ~ ~ ( ~ ( in @ SY191 @ SY130 )
                                | ~ ( in @ SY130 @ SV17 ) ) )
                  | ~ ( ~ ~ ! [SY131: $i] :
                              ~ ~ ( ~ ( in @ SY191 @ SY131 )
                                  | ~ ( in @ SY131 @ SV17 ) )
                      | ( in @ SY191 @ SV55 ) ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[416]) ).

thf(459,plain,
    ! [SV56: $i,SV18: $i] :
      ( ( ( in @ SV18 @ SV56 )
        = $false )
      | ( ( ~ ( empty @ SV56 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[417]) ).

thf(460,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ( ~ ~ ( disjoint @ SV19 @ SV57 )
            | ~ ! [SY194: $i] :
                  ~ ~ ( ~ ( in @ SY194 @ SV19 )
                      | ~ ( in @ SY194 @ SV57 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[418]) ).

thf(461,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ( ~ ~ ! [SY195: $i] :
                    ~ ~ ( ~ ( in @ SY195 @ SV19 )
                        | ~ ( in @ SY195 @ SV57 ) )
            | ~ ( disjoint @ SV19 @ SV57 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[419]) ).

thf(462,plain,
    ! [SV20: $i] :
      ( ( ( SV20 = empty_set )
        = $false )
      | ( ( ! [SY136: $i] :
              ~ ( in @ SY136 @ SV20 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[420]) ).

thf(463,plain,
    ! [SV20: $i] :
      ( ( ( ! [SY137: $i] :
              ~ ( in @ SY137 @ SV20 ) )
        = $false )
      | ( ( SV20 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[421]) ).

thf(464,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV22 ) @ SV59 ) )
        = $true )
      | ( ( in @ SV22 @ SV59 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[423]) ).

thf(465,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ( ~ ( in @ SV22 @ SV59 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV22 ) @ SV59 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[424]) ).

thf(466,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ( SV85
         != ( set_intersection2 @ SV25 @ SV62 ) )
        | ! [SY219: $i] :
            ~ ( ~ ( ~ ( in @ SY219 @ SV85 )
                  | ~ ( ~ ( in @ SY219 @ SV25 )
                      | ~ ( in @ SY219 @ SV62 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY219 @ SV25 )
                        | ~ ( in @ SY219 @ SV62 ) )
                  | ( in @ SY219 @ SV85 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[426]) ).

thf(467,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ~ ! [SY220: $i] :
              ~ ( ~ ( ~ ( in @ SY220 @ SV85 )
                    | ~ ( ~ ( in @ SY220 @ SV25 )
                        | ~ ( in @ SY220 @ SV62 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY220 @ SV25 )
                          | ~ ( in @ SY220 @ SV62 ) )
                    | ( in @ SY220 @ SV85 ) ) )
        | ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[427]) ).

thf(468,plain,
    ! [SV86: $i,SV63: $i,SV26: $i] :
      ( ( ( ~ ( subset @ SV26 @ SV63 )
          | ~ ( disjoint @ SV63 @ SV86 ) )
        = $true )
      | ( ( disjoint @ SV26 @ SV86 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[428]) ).

thf(469,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ( ~ ( subset @ SV28 @ SV65 ) )
        = $true )
      | ( ( ! [SY202: $i] :
              ( ~ ( in @ SY202 @ SV28 )
              | ( in @ SY202 @ SV65 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[429]) ).

thf(470,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ( ~ ! [SY203: $i] :
                ( ~ ( in @ SY203 @ SV28 )
                | ( in @ SY203 @ SV65 ) ) )
        = $true )
      | ( ( subset @ SV28 @ SV65 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[430]) ).

thf(471,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( ~ ( proper_subset @ SV31 @ SV68 ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ SV31 @ SV68 )
              | ~ ( ( SV31 != SV68 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[432]) ).

thf(472,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV31 @ SV68 )
                | ~ ( ( SV31 != SV68 ) ) ) )
        = $true )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[433]) ).

thf(473,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
              | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 ) )
          | ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
              | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) ) )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[434]) ).

thf(474,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ( SV88
         != ( set_difference @ SV34 @ SV71 ) )
        | ! [SY221: $i] :
            ~ ( ~ ( ~ ( in @ SY221 @ SV88 )
                  | ~ ( ~ ( in @ SY221 @ SV34 )
                      | ~ ~ ( in @ SY221 @ SV71 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY221 @ SV34 )
                        | ~ ~ ( in @ SY221 @ SV71 ) )
                  | ( in @ SY221 @ SV88 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[435]) ).

thf(475,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ~ ! [SY222: $i] :
              ~ ( ~ ( ~ ( in @ SY222 @ SV88 )
                    | ~ ( ~ ( in @ SY222 @ SV34 )
                        | ~ ~ ( in @ SY222 @ SV71 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY222 @ SV34 )
                          | ~ ~ ( in @ SY222 @ SV71 ) )
                    | ( in @ SY222 @ SV88 ) ) )
        | ( SV88
          = ( set_difference @ SV34 @ SV71 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[436]) ).

thf(476,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ( SV89
         != ( unordered_pair @ SV36 @ SV73 ) )
        | ! [SY223: $i] :
            ~ ( ~ ( ~ ( in @ SY223 @ SV89 )
                  | ( SY223 = SV36 )
                  | ( SY223 = SV73 ) )
              | ~ ( ~ ( ( SY223 = SV36 )
                      | ( SY223 = SV73 ) )
                  | ( in @ SY223 @ SV89 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[438]) ).

thf(477,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ~ ! [SY224: $i] :
              ~ ( ~ ( ~ ( in @ SY224 @ SV89 )
                    | ( SY224 = SV36 )
                    | ( SY224 = SV73 ) )
                | ~ ( ~ ( ( SY224 = SV36 )
                        | ( SY224 = SV73 ) )
                    | ( in @ SY224 @ SV89 ) ) )
        | ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[439]) ).

thf(478,plain,
    ! [SV90: $i,SV74: $i,SV37: $i] :
      ( ( ( ~ ( subset @ SV37 @ SV74 )
          | ~ ( subset @ SV37 @ SV90 ) )
        = $true )
      | ( ( subset @ SV37 @ ( set_intersection2 @ SV74 @ SV90 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[440]) ).

thf(479,plain,
    ! [SV91: $i,SV75: $i,SV38: $i] :
      ( ( ( ~ ( subset @ SV38 @ SV75 )
          | ~ ( subset @ SV75 @ SV91 ) )
        = $true )
      | ( ( subset @ SV38 @ SV91 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[441]) ).

thf(480,plain,
    ! [SV77: $i,SV40: $i] :
      ( ( ( subset @ SV40 @ SV77 )
        = $false )
      | ( ( ~ ( proper_subset @ SV77 @ SV40 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[443]) ).

thf(481,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ( SV78
         != ( powerset @ SV41 ) )
        = $true )
      | ( ( ! [SY214: $i] :
              ~ ( ~ ( ~ ( in @ SY214 @ SV78 )
                    | ( subset @ SY214 @ SV41 ) )
                | ~ ( ~ ( subset @ SY214 @ SV41 )
                    | ( in @ SY214 @ SV78 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[444]) ).

thf(482,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ( ~ ! [SY215: $i] :
                ~ ( ~ ( ~ ( in @ SY215 @ SV78 )
                      | ( subset @ SY215 @ SV41 ) )
                  | ~ ( ~ ( subset @ SY215 @ SV41 )
                      | ( in @ SY215 @ SV78 ) ) ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[445]) ).

thf(483,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ( SV92
         != ( set_union2 @ SV42 @ SV79 ) )
        | ! [SY225: $i] :
            ~ ( ~ ( ~ ( in @ SY225 @ SV92 )
                  | ( in @ SY225 @ SV42 )
                  | ( in @ SY225 @ SV79 ) )
              | ~ ( ~ ( ( in @ SY225 @ SV42 )
                      | ( in @ SY225 @ SV79 ) )
                  | ( in @ SY225 @ SV92 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[446]) ).

thf(484,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ~ ! [SY226: $i] :
              ~ ( ~ ( ~ ( in @ SY226 @ SV92 )
                    | ( in @ SY226 @ SV42 )
                    | ( in @ SY226 @ SV79 ) )
                | ~ ( ~ ( ( in @ SY226 @ SV42 )
                        | ( in @ SY226 @ SV79 ) )
                    | ( in @ SY226 @ SV92 ) ) )
        | ( SV92
          = ( set_union2 @ SV42 @ SV79 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[447]) ).

thf(485,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( SV7 = SV47 )
        = $false )
      | ( ( ~ ( ~ ( subset @ SV7 @ SV47 )
              | ~ ( subset @ SV47 @ SV7 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[448]) ).

thf(486,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( ~ ( subset @ SV7 @ SV47 )
              | ~ ( subset @ SV47 @ SV7 ) ) )
        = $false )
      | ( ( SV7 = SV47 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[449]) ).

thf(487,plain,
    ! [SV80: $i,SV48: $i,SV9: $i] :
      ( ( ( ~ ( subset @ SV9 @ SV48 ) )
        = $true )
      | ( ( ~ ( subset @ SV80 @ SV48 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV9 @ SV80 ) @ SV48 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[450]) ).

thf(488,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ( SV49
          = ( singleton @ SV10 ) )
        = $false )
      | ( ( ! [SY184: $i] :
              ~ ( ~ ( ~ ( in @ SY184 @ SV49 )
                    | ( SY184 = SV10 ) )
                | ~ ( ( SY184 != SV10 )
                    | ( in @ SY184 @ SV49 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[451]) ).

thf(489,plain,
    ! [SV10: $i,SV49: $i] :
      ( ( ( ! [SY185: $i] :
              ~ ( ~ ( ~ ( in @ SY185 @ SV49 )
                    | ( SY185 = SV10 ) )
                | ~ ( ( SY185 != SV10 )
                    | ( in @ SY185 @ SV49 ) ) ) )
        = $false )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[452]) ).

thf(490,plain,
    ! [SV50: $i,SV11: $i] :
      ( ( ( in @ SV11 @ SV50 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV11 ) @ SV50 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[453]) ).

thf(491,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ( subset @ SV13 @ ( singleton @ SV52 ) )
        = $false )
      | ( ( ( SV13 = empty_set )
          | ( SV13
            = ( singleton @ SV52 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[455]) ).

thf(492,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ( ( SV13 = empty_set )
          | ( SV13
            = ( singleton @ SV52 ) ) )
        = $false )
      | ( ( subset @ SV13 @ ( singleton @ SV52 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[456]) ).

thf(493,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ( SV55
          = ( union @ SV17 ) )
        = $false )
      | ( ( ! [SY188: $i] :
              ~ ( ~ ( ~ ( in @ SY188 @ SV55 )
                    | ~ ! [SY127: $i] :
                          ~ ~ ( ~ ( in @ SY188 @ SY127 )
                              | ~ ( in @ SY127 @ SV17 ) ) )
                | ~ ( ~ ~ ! [SY128: $i] :
                            ~ ~ ( ~ ( in @ SY188 @ SY128 )
                                | ~ ( in @ SY128 @ SV17 ) )
                    | ( in @ SY188 @ SV55 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[457]) ).

thf(494,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ( ! [SY191: $i] :
              ~ ( ~ ( ~ ( in @ SY191 @ SV55 )
                    | ~ ! [SY130: $i] :
                          ~ ~ ( ~ ( in @ SY191 @ SY130 )
                              | ~ ( in @ SY130 @ SV17 ) ) )
                | ~ ( ~ ~ ! [SY131: $i] :
                            ~ ~ ( ~ ( in @ SY191 @ SY131 )
                                | ~ ( in @ SY131 @ SV17 ) )
                    | ( in @ SY191 @ SV55 ) ) ) )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[458]) ).

thf(495,plain,
    ! [SV18: $i,SV56: $i] :
      ( ( ( empty @ SV56 )
        = $false )
      | ( ( in @ SV18 @ SV56 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[459]) ).

thf(496,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ~ ( disjoint @ SV19 @ SV57 )
        | ~ ! [SY194: $i] :
              ~ ~ ( ~ ( in @ SY194 @ SV19 )
                  | ~ ( in @ SY194 @ SV57 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[460]) ).

thf(497,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ~ ~ ! [SY195: $i] :
                ~ ~ ( ~ ( in @ SY195 @ SV19 )
                    | ~ ( in @ SY195 @ SV57 ) )
        | ~ ( disjoint @ SV19 @ SV57 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[461]) ).

thf(498,plain,
    ! [SV20: $i,SV93: $i] :
      ( ( ( ~ ( in @ SV93 @ SV20 ) )
        = $true )
      | ( ( SV20 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[462]) ).

thf(499,plain,
    ! [SV20: $i] :
      ( ( ( ~ ( in @ ( sK4_SY137 @ SV20 ) @ SV20 ) )
        = $false )
      | ( ( SV20 = empty_set )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[463]) ).

thf(500,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ( subset @ ( singleton @ SV22 ) @ SV59 )
        = $false )
      | ( ( in @ SV22 @ SV59 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[464]) ).

thf(501,plain,
    ! [SV59: $i,SV22: $i] :
      ( ( ( in @ SV22 @ SV59 )
        = $false )
      | ( ( subset @ ( singleton @ SV22 ) @ SV59 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[465]) ).

thf(502,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ( SV85
         != ( set_intersection2 @ SV25 @ SV62 ) )
        = $true )
      | ( ( ! [SY219: $i] :
              ~ ( ~ ( ~ ( in @ SY219 @ SV85 )
                    | ~ ( ~ ( in @ SY219 @ SV25 )
                        | ~ ( in @ SY219 @ SV62 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY219 @ SV25 )
                          | ~ ( in @ SY219 @ SV62 ) )
                    | ( in @ SY219 @ SV85 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[466]) ).

thf(503,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ( ~ ! [SY220: $i] :
                ~ ( ~ ( ~ ( in @ SY220 @ SV85 )
                      | ~ ( ~ ( in @ SY220 @ SV25 )
                          | ~ ( in @ SY220 @ SV62 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY220 @ SV25 )
                            | ~ ( in @ SY220 @ SV62 ) )
                      | ( in @ SY220 @ SV85 ) ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[467]) ).

thf(504,plain,
    ! [SV86: $i,SV63: $i,SV26: $i] :
      ( ( ( ~ ( subset @ SV26 @ SV63 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV63 @ SV86 ) )
        = $true )
      | ( ( disjoint @ SV26 @ SV86 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[468]) ).

thf(505,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ( subset @ SV28 @ SV65 )
        = $false )
      | ( ( ! [SY202: $i] :
              ( ~ ( in @ SY202 @ SV28 )
              | ( in @ SY202 @ SV65 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[469]) ).

thf(506,plain,
    ! [SV65: $i,SV28: $i] :
      ( ( ( ! [SY203: $i] :
              ( ~ ( in @ SY203 @ SV28 )
              | ( in @ SY203 @ SV65 ) ) )
        = $false )
      | ( ( subset @ SV28 @ SV65 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[470]) ).

thf(507,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( proper_subset @ SV31 @ SV68 )
        = $false )
      | ( ( ~ ( ~ ( subset @ SV31 @ SV68 )
              | ~ ( ( SV31 != SV68 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[471]) ).

thf(508,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( ~ ( ~ ( subset @ SV31 @ SV68 )
              | ~ ( ( SV31 != SV68 ) ) ) )
        = $false )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[472]) ).

thf(509,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
              | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 ) ) )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
              | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) ) )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[473]) ).

thf(510,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ( SV88
         != ( set_difference @ SV34 @ SV71 ) )
        = $true )
      | ( ( ! [SY221: $i] :
              ~ ( ~ ( ~ ( in @ SY221 @ SV88 )
                    | ~ ( ~ ( in @ SY221 @ SV34 )
                        | ~ ~ ( in @ SY221 @ SV71 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY221 @ SV34 )
                          | ~ ~ ( in @ SY221 @ SV71 ) )
                    | ( in @ SY221 @ SV88 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[474]) ).

thf(511,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ( ~ ! [SY222: $i] :
                ~ ( ~ ( ~ ( in @ SY222 @ SV88 )
                      | ~ ( ~ ( in @ SY222 @ SV34 )
                          | ~ ~ ( in @ SY222 @ SV71 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY222 @ SV34 )
                            | ~ ~ ( in @ SY222 @ SV71 ) )
                      | ( in @ SY222 @ SV88 ) ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[475]) ).

thf(512,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ( SV89
         != ( unordered_pair @ SV36 @ SV73 ) )
        = $true )
      | ( ( ! [SY223: $i] :
              ~ ( ~ ( ~ ( in @ SY223 @ SV89 )
                    | ( SY223 = SV36 )
                    | ( SY223 = SV73 ) )
                | ~ ( ~ ( ( SY223 = SV36 )
                        | ( SY223 = SV73 ) )
                    | ( in @ SY223 @ SV89 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[476]) ).

thf(513,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ( ~ ! [SY224: $i] :
                ~ ( ~ ( ~ ( in @ SY224 @ SV89 )
                      | ( SY224 = SV36 )
                      | ( SY224 = SV73 ) )
                  | ~ ( ~ ( ( SY224 = SV36 )
                          | ( SY224 = SV73 ) )
                      | ( in @ SY224 @ SV89 ) ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[477]) ).

thf(514,plain,
    ! [SV90: $i,SV74: $i,SV37: $i] :
      ( ( ( ~ ( subset @ SV37 @ SV74 ) )
        = $true )
      | ( ( ~ ( subset @ SV37 @ SV90 ) )
        = $true )
      | ( ( subset @ SV37 @ ( set_intersection2 @ SV74 @ SV90 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[478]) ).

thf(515,plain,
    ! [SV91: $i,SV75: $i,SV38: $i] :
      ( ( ( ~ ( subset @ SV38 @ SV75 ) )
        = $true )
      | ( ( ~ ( subset @ SV75 @ SV91 ) )
        = $true )
      | ( ( subset @ SV38 @ SV91 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[479]) ).

thf(516,plain,
    ! [SV40: $i,SV77: $i] :
      ( ( ( proper_subset @ SV77 @ SV40 )
        = $false )
      | ( ( subset @ SV40 @ SV77 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[480]) ).

thf(517,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ( SV78
          = ( powerset @ SV41 ) )
        = $false )
      | ( ( ! [SY214: $i] :
              ~ ( ~ ( ~ ( in @ SY214 @ SV78 )
                    | ( subset @ SY214 @ SV41 ) )
                | ~ ( ~ ( subset @ SY214 @ SV41 )
                    | ( in @ SY214 @ SV78 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[481]) ).

thf(518,plain,
    ! [SV41: $i,SV78: $i] :
      ( ( ( ! [SY215: $i] :
              ~ ( ~ ( ~ ( in @ SY215 @ SV78 )
                    | ( subset @ SY215 @ SV41 ) )
                | ~ ( ~ ( subset @ SY215 @ SV41 )
                    | ( in @ SY215 @ SV78 ) ) ) )
        = $false )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[482]) ).

thf(519,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ( SV92
         != ( set_union2 @ SV42 @ SV79 ) )
        = $true )
      | ( ( ! [SY225: $i] :
              ~ ( ~ ( ~ ( in @ SY225 @ SV92 )
                    | ( in @ SY225 @ SV42 )
                    | ( in @ SY225 @ SV79 ) )
                | ~ ( ~ ( ( in @ SY225 @ SV42 )
                        | ( in @ SY225 @ SV79 ) )
                    | ( in @ SY225 @ SV92 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[483]) ).

thf(520,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ( ~ ! [SY226: $i] :
                ~ ( ~ ( ~ ( in @ SY226 @ SV92 )
                      | ( in @ SY226 @ SV42 )
                      | ( in @ SY226 @ SV79 ) )
                  | ~ ( ~ ( ( in @ SY226 @ SV42 )
                          | ( in @ SY226 @ SV79 ) )
                      | ( in @ SY226 @ SV92 ) ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[484]) ).

thf(521,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( subset @ SV7 @ SV47 )
          | ~ ( subset @ SV47 @ SV7 ) )
        = $false )
      | ( ( SV7 = SV47 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[485]) ).

thf(522,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( subset @ SV7 @ SV47 )
          | ~ ( subset @ SV47 @ SV7 ) )
        = $true )
      | ( ( SV7 = SV47 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[486]) ).

thf(523,plain,
    ! [SV80: $i,SV48: $i,SV9: $i] :
      ( ( ( subset @ SV9 @ SV48 )
        = $false )
      | ( ( ~ ( subset @ SV80 @ SV48 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV9 @ SV80 ) @ SV48 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[487]) ).

thf(524,plain,
    ! [SV10: $i,SV49: $i,SV94: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV94 @ SV49 )
                  | ( SV94 = SV10 ) )
              | ~ ( ( SV94 != SV10 )
                  | ( in @ SV94 @ SV49 ) ) ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[488]) ).

thf(525,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
                  | ( ( sK5_SY185 @ SV10 @ SV49 )
                    = SV10 ) )
              | ~ ( ( ( sK5_SY185 @ SV10 @ SV49 )
                   != SV10 )
                  | ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) ) ) )
        = $false )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[489]) ).

thf(526,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ( SV13 = empty_set )
        = $true )
      | ( ( SV13
          = ( singleton @ SV52 ) )
        = $true )
      | ( ( subset @ SV13 @ ( singleton @ SV52 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[491]) ).

thf(527,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ( SV13 = empty_set )
        = $false )
      | ( ( subset @ SV13 @ ( singleton @ SV52 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[492]) ).

thf(528,plain,
    ! [SV52: $i,SV13: $i] :
      ( ( ( SV13
          = ( singleton @ SV52 ) )
        = $false )
      | ( ( subset @ SV13 @ ( singleton @ SV52 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[492]) ).

thf(529,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV95 @ SV55 )
                  | ~ ! [SY227: $i] :
                        ~ ~ ( ~ ( in @ SV95 @ SY227 )
                            | ~ ( in @ SY227 @ SV17 ) ) )
              | ~ ( ~ ~ ! [SY228: $i] :
                          ~ ~ ( ~ ( in @ SV95 @ SY228 )
                              | ~ ( in @ SY228 @ SV17 ) )
                  | ( in @ SV95 @ SV55 ) ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[493]) ).

thf(530,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
                  | ~ ! [SY229: $i] :
                        ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY229 )
                            | ~ ( in @ SY229 @ SV17 ) ) )
              | ~ ( ~ ~ ! [SY230: $i] :
                          ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                              | ~ ( in @ SY230 @ SV17 ) )
                  | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) ) )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[494]) ).

thf(531,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ( ~ ~ ( disjoint @ SV19 @ SV57 ) )
        = $true )
      | ( ( ~ ! [SY194: $i] :
                ~ ~ ( ~ ( in @ SY194 @ SV19 )
                    | ~ ( in @ SY194 @ SV57 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[496]) ).

thf(532,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ( ~ ~ ! [SY195: $i] :
                  ~ ~ ( ~ ( in @ SY195 @ SV19 )
                      | ~ ( in @ SY195 @ SV57 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[497]) ).

thf(533,plain,
    ! [SV20: $i,SV93: $i] :
      ( ( ( in @ SV93 @ SV20 )
        = $false )
      | ( ( SV20 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[498]) ).

thf(534,plain,
    ! [SV20: $i] :
      ( ( ( in @ ( sK4_SY137 @ SV20 ) @ SV20 )
        = $true )
      | ( ( SV20 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[499]) ).

thf(535,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false )
      | ( ( ! [SY219: $i] :
              ~ ( ~ ( ~ ( in @ SY219 @ SV85 )
                    | ~ ( ~ ( in @ SY219 @ SV25 )
                        | ~ ( in @ SY219 @ SV62 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY219 @ SV25 )
                          | ~ ( in @ SY219 @ SV62 ) )
                    | ( in @ SY219 @ SV85 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[502]) ).

thf(536,plain,
    ! [SV62: $i,SV25: $i,SV85: $i] :
      ( ( ( ! [SY220: $i] :
              ~ ( ~ ( ~ ( in @ SY220 @ SV85 )
                    | ~ ( ~ ( in @ SY220 @ SV25 )
                        | ~ ( in @ SY220 @ SV62 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY220 @ SV25 )
                          | ~ ( in @ SY220 @ SV62 ) )
                    | ( in @ SY220 @ SV85 ) ) ) )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[503]) ).

thf(537,plain,
    ! [SV86: $i,SV63: $i,SV26: $i] :
      ( ( ( subset @ SV26 @ SV63 )
        = $false )
      | ( ( ~ ( disjoint @ SV63 @ SV86 ) )
        = $true )
      | ( ( disjoint @ SV26 @ SV86 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[504]) ).

thf(538,plain,
    ! [SV65: $i,SV28: $i,SV96: $i] :
      ( ( ( ~ ( in @ SV96 @ SV28 )
          | ( in @ SV96 @ SV65 ) )
        = $true )
      | ( ( subset @ SV28 @ SV65 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[505]) ).

thf(539,plain,
    ! [SV28: $i,SV65: $i] :
      ( ( ( ~ ( in @ ( sK7_SY203 @ SV65 @ SV28 ) @ SV28 )
          | ( in @ ( sK7_SY203 @ SV65 @ SV28 ) @ SV65 ) )
        = $false )
      | ( ( subset @ SV28 @ SV65 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[506]) ).

thf(540,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( ~ ( subset @ SV31 @ SV68 )
          | ~ ( ( SV31 != SV68 ) ) )
        = $false )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[507]) ).

thf(541,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( ~ ( subset @ SV31 @ SV68 )
          | ~ ( ( SV31 != SV68 ) ) )
        = $true )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[508]) ).

thf(542,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
          | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
              | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) ) )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[509]) ).

thf(543,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false )
      | ( ( ! [SY221: $i] :
              ~ ( ~ ( ~ ( in @ SY221 @ SV88 )
                    | ~ ( ~ ( in @ SY221 @ SV34 )
                        | ~ ~ ( in @ SY221 @ SV71 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY221 @ SV34 )
                          | ~ ~ ( in @ SY221 @ SV71 ) )
                    | ( in @ SY221 @ SV88 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[510]) ).

thf(544,plain,
    ! [SV71: $i,SV34: $i,SV88: $i] :
      ( ( ( ! [SY222: $i] :
              ~ ( ~ ( ~ ( in @ SY222 @ SV88 )
                    | ~ ( ~ ( in @ SY222 @ SV34 )
                        | ~ ~ ( in @ SY222 @ SV71 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY222 @ SV34 )
                          | ~ ~ ( in @ SY222 @ SV71 ) )
                    | ( in @ SY222 @ SV88 ) ) ) )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[511]) ).

thf(545,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false )
      | ( ( ! [SY223: $i] :
              ~ ( ~ ( ~ ( in @ SY223 @ SV89 )
                    | ( SY223 = SV36 )
                    | ( SY223 = SV73 ) )
                | ~ ( ~ ( ( SY223 = SV36 )
                        | ( SY223 = SV73 ) )
                    | ( in @ SY223 @ SV89 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[512]) ).

thf(546,plain,
    ! [SV73: $i,SV36: $i,SV89: $i] :
      ( ( ( ! [SY224: $i] :
              ~ ( ~ ( ~ ( in @ SY224 @ SV89 )
                    | ( SY224 = SV36 )
                    | ( SY224 = SV73 ) )
                | ~ ( ~ ( ( SY224 = SV36 )
                        | ( SY224 = SV73 ) )
                    | ( in @ SY224 @ SV89 ) ) ) )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[513]) ).

thf(547,plain,
    ! [SV90: $i,SV74: $i,SV37: $i] :
      ( ( ( subset @ SV37 @ SV74 )
        = $false )
      | ( ( ~ ( subset @ SV37 @ SV90 ) )
        = $true )
      | ( ( subset @ SV37 @ ( set_intersection2 @ SV74 @ SV90 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[514]) ).

thf(548,plain,
    ! [SV91: $i,SV75: $i,SV38: $i] :
      ( ( ( subset @ SV38 @ SV75 )
        = $false )
      | ( ( ~ ( subset @ SV75 @ SV91 ) )
        = $true )
      | ( ( subset @ SV38 @ SV91 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[515]) ).

thf(549,plain,
    ! [SV41: $i,SV78: $i,SV97: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV97 @ SV78 )
                  | ( subset @ SV97 @ SV41 ) )
              | ~ ( ~ ( subset @ SV97 @ SV41 )
                  | ( in @ SV97 @ SV78 ) ) ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[517]) ).

thf(550,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
                  | ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 ) )
              | ~ ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
                  | ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) ) ) )
        = $false )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[518]) ).

thf(551,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false )
      | ( ( ! [SY225: $i] :
              ~ ( ~ ( ~ ( in @ SY225 @ SV92 )
                    | ( in @ SY225 @ SV42 )
                    | ( in @ SY225 @ SV79 ) )
                | ~ ( ~ ( ( in @ SY225 @ SV42 )
                        | ( in @ SY225 @ SV79 ) )
                    | ( in @ SY225 @ SV92 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[519]) ).

thf(552,plain,
    ! [SV79: $i,SV42: $i,SV92: $i] :
      ( ( ( ! [SY226: $i] :
              ~ ( ~ ( ~ ( in @ SY226 @ SV92 )
                    | ( in @ SY226 @ SV42 )
                    | ( in @ SY226 @ SV79 ) )
                | ~ ( ~ ( ( in @ SY226 @ SV42 )
                        | ( in @ SY226 @ SV79 ) )
                    | ( in @ SY226 @ SV92 ) ) ) )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[520]) ).

thf(553,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( subset @ SV7 @ SV47 ) )
        = $false )
      | ( ( SV7 = SV47 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[521]) ).

thf(554,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( ~ ( subset @ SV47 @ SV7 ) )
        = $false )
      | ( ( SV7 = SV47 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[521]) ).

thf(555,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( subset @ SV7 @ SV47 ) )
        = $true )
      | ( ( ~ ( subset @ SV47 @ SV7 ) )
        = $true )
      | ( ( SV7 = SV47 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[522]) ).

thf(556,plain,
    ! [SV9: $i,SV48: $i,SV80: $i] :
      ( ( ( subset @ SV80 @ SV48 )
        = $false )
      | ( ( subset @ SV9 @ SV48 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV9 @ SV80 ) @ SV48 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[523]) ).

thf(557,plain,
    ! [SV10: $i,SV49: $i,SV94: $i] :
      ( ( ( ~ ( ~ ( in @ SV94 @ SV49 )
              | ( SV94 = SV10 ) )
          | ~ ( ( SV94 != SV10 )
              | ( in @ SV94 @ SV49 ) ) )
        = $false )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[524]) ).

thf(558,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
              | ( ( sK5_SY185 @ SV10 @ SV49 )
                = SV10 ) )
          | ~ ( ( ( sK5_SY185 @ SV10 @ SV49 )
               != SV10 )
              | ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[525]) ).

thf(559,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( ~ ( ~ ( in @ SV95 @ SV55 )
              | ~ ! [SY227: $i] :
                    ~ ~ ( ~ ( in @ SV95 @ SY227 )
                        | ~ ( in @ SY227 @ SV17 ) ) )
          | ~ ( ~ ~ ! [SY228: $i] :
                      ~ ~ ( ~ ( in @ SV95 @ SY228 )
                          | ~ ( in @ SY228 @ SV17 ) )
              | ( in @ SV95 @ SV55 ) ) )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[529]) ).

thf(560,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
              | ~ ! [SY229: $i] :
                    ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY229 )
                        | ~ ( in @ SY229 @ SV17 ) ) )
          | ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[530]) ).

thf(561,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $false )
      | ( ( ~ ! [SY194: $i] :
                ~ ~ ( ~ ( in @ SY194 @ SV19 )
                    | ~ ( in @ SY194 @ SV57 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[531]) ).

thf(562,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ( ~ ! [SY195: $i] :
                ~ ~ ( ~ ( in @ SY195 @ SV19 )
                    | ~ ( in @ SY195 @ SV57 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[532]) ).

thf(563,plain,
    ! [SV62: $i,SV25: $i,SV85: $i,SV98: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV98 @ SV85 )
                  | ~ ( ~ ( in @ SV98 @ SV25 )
                      | ~ ( in @ SV98 @ SV62 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV98 @ SV25 )
                        | ~ ( in @ SV98 @ SV62 ) )
                  | ( in @ SV98 @ SV85 ) ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[535]) ).

thf(564,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
                  | ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                      | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                        | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
                  | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) ) )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[536]) ).

thf(565,plain,
    ! [SV26: $i,SV86: $i,SV63: $i] :
      ( ( ( disjoint @ SV63 @ SV86 )
        = $false )
      | ( ( subset @ SV26 @ SV63 )
        = $false )
      | ( ( disjoint @ SV26 @ SV86 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[537]) ).

thf(566,plain,
    ! [SV65: $i,SV28: $i,SV96: $i] :
      ( ( ( ~ ( in @ SV96 @ SV28 ) )
        = $true )
      | ( ( in @ SV96 @ SV65 )
        = $true )
      | ( ( subset @ SV28 @ SV65 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[538]) ).

thf(567,plain,
    ! [SV28: $i,SV65: $i] :
      ( ( ( ~ ( in @ ( sK7_SY203 @ SV65 @ SV28 ) @ SV28 ) )
        = $false )
      | ( ( subset @ SV28 @ SV65 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[539]) ).

thf(568,plain,
    ! [SV28: $i,SV65: $i] :
      ( ( ( in @ ( sK7_SY203 @ SV65 @ SV28 ) @ SV65 )
        = $false )
      | ( ( subset @ SV28 @ SV65 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[539]) ).

thf(569,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( ~ ( subset @ SV31 @ SV68 ) )
        = $false )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[540]) ).

thf(570,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( ~ ( ( SV31 != SV68 ) ) )
        = $false )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[540]) ).

thf(571,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( ~ ( subset @ SV31 @ SV68 ) )
        = $true )
      | ( ( ~ ( ( SV31 != SV68 ) ) )
        = $true )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[541]) ).

thf(572,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
              | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) ) )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[542]) ).

thf(573,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
              | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) ) )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[542]) ).

thf(574,plain,
    ! [SV71: $i,SV34: $i,SV88: $i,SV99: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV99 @ SV88 )
                  | ~ ( ~ ( in @ SV99 @ SV34 )
                      | ~ ~ ( in @ SV99 @ SV71 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV99 @ SV34 )
                        | ~ ~ ( in @ SV99 @ SV71 ) )
                  | ( in @ SV99 @ SV88 ) ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[543]) ).

thf(575,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
                  | ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                      | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                        | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
                  | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) ) )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[544]) ).

thf(576,plain,
    ! [SV73: $i,SV36: $i,SV89: $i,SV100: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV100 @ SV89 )
                  | ( SV100 = SV36 )
                  | ( SV100 = SV73 ) )
              | ~ ( ~ ( ( SV100 = SV36 )
                      | ( SV100 = SV73 ) )
                  | ( in @ SV100 @ SV89 ) ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[545]) ).

thf(577,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV36 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV73 ) )
              | ~ ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                        = SV36 )
                      | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                        = SV73 ) )
                  | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) ) ) )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[546]) ).

thf(578,plain,
    ! [SV74: $i,SV90: $i,SV37: $i] :
      ( ( ( subset @ SV37 @ SV90 )
        = $false )
      | ( ( subset @ SV37 @ SV74 )
        = $false )
      | ( ( subset @ SV37 @ ( set_intersection2 @ SV74 @ SV90 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[547]) ).

thf(579,plain,
    ! [SV38: $i,SV91: $i,SV75: $i] :
      ( ( ( subset @ SV75 @ SV91 )
        = $false )
      | ( ( subset @ SV38 @ SV75 )
        = $false )
      | ( ( subset @ SV38 @ SV91 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[548]) ).

thf(580,plain,
    ! [SV41: $i,SV78: $i,SV97: $i] :
      ( ( ( ~ ( ~ ( in @ SV97 @ SV78 )
              | ( subset @ SV97 @ SV41 ) )
          | ~ ( ~ ( subset @ SV97 @ SV41 )
              | ( in @ SV97 @ SV78 ) ) )
        = $false )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[549]) ).

thf(581,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
              | ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 ) )
          | ~ ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
              | ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[550]) ).

thf(582,plain,
    ! [SV79: $i,SV42: $i,SV92: $i,SV101: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV101 @ SV92 )
                  | ( in @ SV101 @ SV42 )
                  | ( in @ SV101 @ SV79 ) )
              | ~ ( ~ ( ( in @ SV101 @ SV42 )
                      | ( in @ SV101 @ SV79 ) )
                  | ( in @ SV101 @ SV92 ) ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[551]) ).

thf(583,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
              | ~ ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                      | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) ) ) )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[552]) ).

thf(584,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( subset @ SV7 @ SV47 )
        = $true )
      | ( ( SV7 = SV47 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[553]) ).

thf(585,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( subset @ SV47 @ SV7 )
        = $true )
      | ( ( SV7 = SV47 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[554]) ).

thf(586,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( subset @ SV7 @ SV47 )
        = $false )
      | ( ( ~ ( subset @ SV47 @ SV7 ) )
        = $true )
      | ( ( SV7 = SV47 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[555]) ).

thf(587,plain,
    ! [SV10: $i,SV49: $i,SV94: $i] :
      ( ( ( ~ ( ~ ( in @ SV94 @ SV49 )
              | ( SV94 = SV10 ) ) )
        = $false )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[557]) ).

thf(588,plain,
    ! [SV49: $i,SV10: $i,SV94: $i] :
      ( ( ( ~ ( ( SV94 != SV10 )
              | ( in @ SV94 @ SV49 ) ) )
        = $false )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[557]) ).

thf(589,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
              | ( ( sK5_SY185 @ SV10 @ SV49 )
                = SV10 ) ) )
        = $true )
      | ( ( ~ ( ( ( sK5_SY185 @ SV10 @ SV49 )
               != SV10 )
              | ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[558]) ).

thf(590,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( ~ ( ~ ( in @ SV95 @ SV55 )
              | ~ ! [SY227: $i] :
                    ~ ~ ( ~ ( in @ SV95 @ SY227 )
                        | ~ ( in @ SY227 @ SV17 ) ) ) )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[559]) ).

thf(591,plain,
    ! [SV55: $i,SV17: $i,SV95: $i] :
      ( ( ( ~ ( ~ ~ ! [SY228: $i] :
                      ~ ~ ( ~ ( in @ SV95 @ SY228 )
                          | ~ ( in @ SY228 @ SV17 ) )
              | ( in @ SV95 @ SV55 ) ) )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[559]) ).

thf(592,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
              | ~ ! [SY229: $i] :
                    ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY229 )
                        | ~ ( in @ SY229 @ SV17 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[560]) ).

thf(593,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ( disjoint @ SV19 @ SV57 )
        = $true )
      | ( ( ~ ! [SY194: $i] :
                ~ ~ ( ~ ( in @ SY194 @ SV19 )
                    | ~ ( in @ SY194 @ SV57 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[561]) ).

thf(594,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ( ! [SY195: $i] :
              ~ ~ ( ~ ( in @ SY195 @ SV19 )
                  | ~ ( in @ SY195 @ SV57 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[562]) ).

thf(595,plain,
    ! [SV62: $i,SV25: $i,SV85: $i,SV98: $i] :
      ( ( ( ~ ( ~ ( in @ SV98 @ SV85 )
              | ~ ( ~ ( in @ SV98 @ SV25 )
                  | ~ ( in @ SV98 @ SV62 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV98 @ SV25 )
                    | ~ ( in @ SV98 @ SV62 ) )
              | ( in @ SV98 @ SV85 ) ) )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[563]) ).

thf(596,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
              | ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                  | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[564]) ).

thf(597,plain,
    ! [SV65: $i,SV28: $i,SV96: $i] :
      ( ( ( in @ SV96 @ SV28 )
        = $false )
      | ( ( in @ SV96 @ SV65 )
        = $true )
      | ( ( subset @ SV28 @ SV65 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[566]) ).

thf(598,plain,
    ! [SV28: $i,SV65: $i] :
      ( ( ( in @ ( sK7_SY203 @ SV65 @ SV28 ) @ SV28 )
        = $true )
      | ( ( subset @ SV28 @ SV65 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[567]) ).

thf(599,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( subset @ SV31 @ SV68 )
        = $true )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[569]) ).

thf(600,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( SV31 != SV68 )
        = $true )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[570]) ).

thf(601,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( subset @ SV31 @ SV68 )
        = $false )
      | ( ( ~ ( ( SV31 != SV68 ) ) )
        = $true )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[571]) ).

thf(602,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
              | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) ) )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[572]) ).

thf(603,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
          | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) )
        = $false )
      | ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
        = $false )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[573]) ).

thf(604,plain,
    ! [SV71: $i,SV34: $i,SV88: $i,SV99: $i] :
      ( ( ( ~ ( ~ ( in @ SV99 @ SV88 )
              | ~ ( ~ ( in @ SV99 @ SV34 )
                  | ~ ~ ( in @ SV99 @ SV71 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV99 @ SV34 )
                    | ~ ~ ( in @ SV99 @ SV71 ) )
              | ( in @ SV99 @ SV88 ) ) )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[574]) ).

thf(605,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
              | ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                  | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[575]) ).

thf(606,plain,
    ! [SV73: $i,SV36: $i,SV89: $i,SV100: $i] :
      ( ( ( ~ ( ~ ( in @ SV100 @ SV89 )
              | ( SV100 = SV36 )
              | ( SV100 = SV73 ) )
          | ~ ( ~ ( ( SV100 = SV36 )
                  | ( SV100 = SV73 ) )
              | ( in @ SV100 @ SV89 ) ) )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[576]) ).

thf(607,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV36 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV73 ) )
          | ~ ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV36 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV73 ) )
              | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[577]) ).

thf(608,plain,
    ! [SV41: $i,SV78: $i,SV97: $i] :
      ( ( ( ~ ( ~ ( in @ SV97 @ SV78 )
              | ( subset @ SV97 @ SV41 ) ) )
        = $false )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[580]) ).

thf(609,plain,
    ! [SV78: $i,SV41: $i,SV97: $i] :
      ( ( ( ~ ( ~ ( subset @ SV97 @ SV41 )
              | ( in @ SV97 @ SV78 ) ) )
        = $false )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[580]) ).

thf(610,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
              | ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 ) ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
              | ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[581]) ).

thf(611,plain,
    ! [SV79: $i,SV42: $i,SV92: $i,SV101: $i] :
      ( ( ( ~ ( ~ ( in @ SV101 @ SV92 )
              | ( in @ SV101 @ SV42 )
              | ( in @ SV101 @ SV79 ) )
          | ~ ( ~ ( ( in @ SV101 @ SV42 )
                  | ( in @ SV101 @ SV79 ) )
              | ( in @ SV101 @ SV92 ) ) )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[582]) ).

thf(612,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
          | ~ ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[583]) ).

thf(613,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( subset @ SV47 @ SV7 )
        = $false )
      | ( ( subset @ SV7 @ SV47 )
        = $false )
      | ( ( SV7 = SV47 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[586]) ).

thf(614,plain,
    ! [SV10: $i,SV49: $i,SV94: $i] :
      ( ( ( ~ ( in @ SV94 @ SV49 )
          | ( SV94 = SV10 ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[587]) ).

thf(615,plain,
    ! [SV49: $i,SV10: $i,SV94: $i] :
      ( ( ( ( SV94 != SV10 )
          | ( in @ SV94 @ SV49 ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[588]) ).

thf(616,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
          | ( ( sK5_SY185 @ SV10 @ SV49 )
            = SV10 ) )
        = $false )
      | ( ( ~ ( ( ( sK5_SY185 @ SV10 @ SV49 )
               != SV10 )
              | ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[589]) ).

thf(617,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( ~ ( in @ SV95 @ SV55 )
          | ~ ! [SY227: $i] :
                ~ ~ ( ~ ( in @ SV95 @ SY227 )
                    | ~ ( in @ SY227 @ SV17 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[590]) ).

thf(618,plain,
    ! [SV55: $i,SV17: $i,SV95: $i] :
      ( ( ( ~ ~ ! [SY228: $i] :
                  ~ ~ ( ~ ( in @ SV95 @ SY228 )
                      | ~ ( in @ SY228 @ SV17 ) )
          | ( in @ SV95 @ SV55 ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[591]) ).

thf(619,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
          | ~ ! [SY229: $i] :
                ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY229 )
                    | ~ ( in @ SY229 @ SV17 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[592]) ).

thf(620,plain,
    ! [SV57: $i,SV19: $i] :
      ( ( ( ! [SY194: $i] :
              ~ ~ ( ~ ( in @ SY194 @ SV19 )
                  | ~ ( in @ SY194 @ SV57 ) ) )
        = $false )
      | ( ( disjoint @ SV19 @ SV57 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[593]) ).

thf(621,plain,
    ! [SV57: $i,SV19: $i,SV102: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV102 @ SV19 )
                | ~ ( in @ SV102 @ SV57 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[594]) ).

thf(622,plain,
    ! [SV62: $i,SV25: $i,SV85: $i,SV98: $i] :
      ( ( ( ~ ( ~ ( in @ SV98 @ SV85 )
              | ~ ( ~ ( in @ SV98 @ SV25 )
                  | ~ ( in @ SV98 @ SV62 ) ) ) )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[595]) ).

thf(623,plain,
    ! [SV85: $i,SV62: $i,SV25: $i,SV98: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV98 @ SV25 )
                    | ~ ( in @ SV98 @ SV62 ) )
              | ( in @ SV98 @ SV85 ) ) )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[595]) ).

thf(624,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
              | ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                  | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[596]) ).

thf(625,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( SV31 = SV68 )
        = $false )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[600]) ).

thf(626,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( SV31 != SV68 )
        = $false )
      | ( ( subset @ SV31 @ SV68 )
        = $false )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[601]) ).

thf(627,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
          | ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 ) )
        = $false )
      | ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[602]) ).

thf(628,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 ) )
        = $false )
      | ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
        = $false )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[603]) ).

thf(629,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
        = $false )
      | ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
        = $false )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[603]) ).

thf(630,plain,
    ! [SV71: $i,SV34: $i,SV88: $i,SV99: $i] :
      ( ( ( ~ ( ~ ( in @ SV99 @ SV88 )
              | ~ ( ~ ( in @ SV99 @ SV34 )
                  | ~ ~ ( in @ SV99 @ SV71 ) ) ) )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[604]) ).

thf(631,plain,
    ! [SV88: $i,SV71: $i,SV34: $i,SV99: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV99 @ SV34 )
                    | ~ ~ ( in @ SV99 @ SV71 ) )
              | ( in @ SV99 @ SV88 ) ) )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[604]) ).

thf(632,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
              | ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                  | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[605]) ).

thf(633,plain,
    ! [SV73: $i,SV36: $i,SV89: $i,SV100: $i] :
      ( ( ( ~ ( ~ ( in @ SV100 @ SV89 )
              | ( SV100 = SV36 )
              | ( SV100 = SV73 ) ) )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[606]) ).

thf(634,plain,
    ! [SV89: $i,SV73: $i,SV36: $i,SV100: $i] :
      ( ( ( ~ ( ~ ( ( SV100 = SV36 )
                  | ( SV100 = SV73 ) )
              | ( in @ SV100 @ SV89 ) ) )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[606]) ).

thf(635,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV36 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV73 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV36 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV73 ) )
              | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[607]) ).

thf(636,plain,
    ! [SV41: $i,SV78: $i,SV97: $i] :
      ( ( ( ~ ( in @ SV97 @ SV78 )
          | ( subset @ SV97 @ SV41 ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[608]) ).

thf(637,plain,
    ! [SV78: $i,SV41: $i,SV97: $i] :
      ( ( ( ~ ( subset @ SV97 @ SV41 )
          | ( in @ SV97 @ SV78 ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[609]) ).

thf(638,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( ~ ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
          | ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
              | ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[610]) ).

thf(639,plain,
    ! [SV79: $i,SV42: $i,SV92: $i,SV101: $i] :
      ( ( ( ~ ( ~ ( in @ SV101 @ SV92 )
              | ( in @ SV101 @ SV42 )
              | ( in @ SV101 @ SV79 ) ) )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[611]) ).

thf(640,plain,
    ! [SV92: $i,SV79: $i,SV42: $i,SV101: $i] :
      ( ( ( ~ ( ~ ( ( in @ SV101 @ SV42 )
                  | ( in @ SV101 @ SV79 ) )
              | ( in @ SV101 @ SV92 ) ) )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[611]) ).

thf(641,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[612]) ).

thf(642,plain,
    ! [SV10: $i,SV49: $i,SV94: $i] :
      ( ( ( ~ ( in @ SV94 @ SV49 ) )
        = $true )
      | ( ( SV94 = SV10 )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[614]) ).

thf(643,plain,
    ! [SV49: $i,SV10: $i,SV94: $i] :
      ( ( ( SV94 != SV10 )
        = $true )
      | ( ( in @ SV94 @ SV49 )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[615]) ).

thf(644,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) )
        = $false )
      | ( ( ~ ( ( ( sK5_SY185 @ SV10 @ SV49 )
               != SV10 )
              | ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[616]) ).

thf(645,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ( sK5_SY185 @ SV10 @ SV49 )
          = SV10 )
        = $false )
      | ( ( ~ ( ( ( sK5_SY185 @ SV10 @ SV49 )
               != SV10 )
              | ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[616]) ).

thf(646,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( ~ ( in @ SV95 @ SV55 ) )
        = $true )
      | ( ( ~ ! [SY227: $i] :
                ~ ~ ( ~ ( in @ SV95 @ SY227 )
                    | ~ ( in @ SY227 @ SV17 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[617]) ).

thf(647,plain,
    ! [SV55: $i,SV17: $i,SV95: $i] :
      ( ( ( ~ ~ ! [SY228: $i] :
                  ~ ~ ( ~ ( in @ SV95 @ SY228 )
                      | ~ ( in @ SY228 @ SV17 ) ) )
        = $true )
      | ( ( in @ SV95 @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[618]) ).

thf(648,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[619]) ).

thf(649,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ! [SY229: $i] :
                ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY229 )
                    | ~ ( in @ SY229 @ SV17 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[619]) ).

thf(650,plain,
    ! [SV19: $i,SV57: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV19 )
                | ~ ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV57 ) ) )
        = $false )
      | ( ( disjoint @ SV19 @ SV57 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[620]) ).

thf(651,plain,
    ! [SV57: $i,SV19: $i,SV102: $i] :
      ( ( ( ~ ( ~ ( in @ SV102 @ SV19 )
              | ~ ( in @ SV102 @ SV57 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[621]) ).

thf(652,plain,
    ! [SV62: $i,SV25: $i,SV85: $i,SV98: $i] :
      ( ( ( ~ ( in @ SV98 @ SV85 )
          | ~ ( ~ ( in @ SV98 @ SV25 )
              | ~ ( in @ SV98 @ SV62 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[622]) ).

thf(653,plain,
    ! [SV85: $i,SV62: $i,SV25: $i,SV98: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV98 @ SV25 )
                | ~ ( in @ SV98 @ SV62 ) )
          | ( in @ SV98 @ SV85 ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[623]) ).

thf(654,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
          | ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
              | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[624]) ).

thf(655,plain,
    ! [SV68: $i,SV31: $i] :
      ( ( ( SV31 = SV68 )
        = $true )
      | ( ( subset @ SV31 @ SV68 )
        = $false )
      | ( ( proper_subset @ SV31 @ SV68 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[626]) ).

thf(656,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( ~ ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 ) )
        = $false )
      | ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[627]) ).

thf(657,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
        = $false )
      | ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[627]) ).

thf(658,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
        = $true )
      | ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
        = $false )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[628]) ).

thf(659,plain,
    ! [SV71: $i,SV34: $i,SV88: $i,SV99: $i] :
      ( ( ( ~ ( in @ SV99 @ SV88 )
          | ~ ( ~ ( in @ SV99 @ SV34 )
              | ~ ~ ( in @ SV99 @ SV71 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[630]) ).

thf(660,plain,
    ! [SV88: $i,SV71: $i,SV34: $i,SV99: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV99 @ SV34 )
                | ~ ~ ( in @ SV99 @ SV71 ) )
          | ( in @ SV99 @ SV88 ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[631]) ).

thf(661,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
          | ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
              | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[632]) ).

thf(662,plain,
    ! [SV73: $i,SV36: $i,SV89: $i,SV100: $i] :
      ( ( ( ~ ( in @ SV100 @ SV89 )
          | ( SV100 = SV36 )
          | ( SV100 = SV73 ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[633]) ).

thf(663,plain,
    ! [SV89: $i,SV73: $i,SV36: $i,SV100: $i] :
      ( ( ( ~ ( ( SV100 = SV36 )
              | ( SV100 = SV73 ) )
          | ( in @ SV100 @ SV89 ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[634]) ).

thf(664,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
          | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV36 )
          | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV73 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV36 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV73 ) )
              | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[635]) ).

thf(665,plain,
    ! [SV41: $i,SV78: $i,SV97: $i] :
      ( ( ( ~ ( in @ SV97 @ SV78 ) )
        = $true )
      | ( ( subset @ SV97 @ SV41 )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[636]) ).

thf(666,plain,
    ! [SV78: $i,SV41: $i,SV97: $i] :
      ( ( ( ~ ( subset @ SV97 @ SV41 ) )
        = $true )
      | ( ( in @ SV97 @ SV78 )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[637]) ).

thf(667,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( ~ ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
              | ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[638]) ).

thf(668,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
              | ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[638]) ).

thf(669,plain,
    ! [SV79: $i,SV42: $i,SV92: $i,SV101: $i] :
      ( ( ( ~ ( in @ SV101 @ SV92 )
          | ( in @ SV101 @ SV42 )
          | ( in @ SV101 @ SV79 ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[639]) ).

thf(670,plain,
    ! [SV92: $i,SV79: $i,SV42: $i,SV101: $i] :
      ( ( ( ~ ( ( in @ SV101 @ SV42 )
              | ( in @ SV101 @ SV79 ) )
          | ( in @ SV101 @ SV92 ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[640]) ).

thf(671,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
          | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
          | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[641]) ).

thf(672,plain,
    ! [SV10: $i,SV49: $i,SV94: $i] :
      ( ( ( in @ SV94 @ SV49 )
        = $false )
      | ( ( SV94 = SV10 )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[642]) ).

thf(673,plain,
    ! [SV49: $i,SV10: $i,SV94: $i] :
      ( ( ( SV94 = SV10 )
        = $false )
      | ( ( in @ SV94 @ SV49 )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[643]) ).

thf(674,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
        = $true )
      | ( ( ~ ( ( ( sK5_SY185 @ SV10 @ SV49 )
               != SV10 )
              | ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) ) )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[644]) ).

thf(675,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ( ( sK5_SY185 @ SV10 @ SV49 )
           != SV10 )
          | ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) )
        = $false )
      | ( ( ( sK5_SY185 @ SV10 @ SV49 )
          = SV10 )
        = $false )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[645]) ).

thf(676,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( in @ SV95 @ SV55 )
        = $false )
      | ( ( ~ ! [SY227: $i] :
                ~ ~ ( ~ ( in @ SV95 @ SY227 )
                    | ~ ( in @ SY227 @ SV17 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[646]) ).

thf(677,plain,
    ! [SV55: $i,SV17: $i,SV95: $i] :
      ( ( ( ~ ! [SY228: $i] :
                ~ ~ ( ~ ( in @ SV95 @ SY228 )
                    | ~ ( in @ SY228 @ SV17 ) ) )
        = $false )
      | ( ( in @ SV95 @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[647]) ).

thf(678,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[648]) ).

thf(679,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ! [SY229: $i] :
              ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY229 )
                  | ~ ( in @ SY229 @ SV17 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[649]) ).

thf(680,plain,
    ! [SV19: $i,SV57: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV19 )
              | ~ ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV57 ) ) )
        = $true )
      | ( ( disjoint @ SV19 @ SV57 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[650]) ).

thf(681,plain,
    ! [SV57: $i,SV19: $i,SV102: $i] :
      ( ( ( ~ ( in @ SV102 @ SV19 )
          | ~ ( in @ SV102 @ SV57 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[651]) ).

thf(682,plain,
    ! [SV62: $i,SV25: $i,SV85: $i,SV98: $i] :
      ( ( ( ~ ( in @ SV98 @ SV85 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV98 @ SV25 )
              | ~ ( in @ SV98 @ SV62 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[652]) ).

thf(683,plain,
    ! [SV85: $i,SV62: $i,SV25: $i,SV98: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV98 @ SV25 )
                | ~ ( in @ SV98 @ SV62 ) ) )
        = $true )
      | ( ( in @ SV98 @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[653]) ).

thf(684,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[654]) ).

thf(685,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
              | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[654]) ).

thf(686,plain,
    ! [SV33: $i,SV70: $i] :
      ( ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV70 )
        = $true )
      | ( ( in @ ( sK3_SY205 @ SV70 @ SV33 ) @ SV33 )
        = $true )
      | ( ( SV33 = SV70 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[656]) ).

thf(687,plain,
    ! [SV71: $i,SV34: $i,SV88: $i,SV99: $i] :
      ( ( ( ~ ( in @ SV99 @ SV88 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV99 @ SV34 )
              | ~ ~ ( in @ SV99 @ SV71 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[659]) ).

thf(688,plain,
    ! [SV88: $i,SV71: $i,SV34: $i,SV99: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV99 @ SV34 )
                | ~ ~ ( in @ SV99 @ SV71 ) ) )
        = $true )
      | ( ( in @ SV99 @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[660]) ).

thf(689,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[661]) ).

thf(690,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
              | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[661]) ).

thf(691,plain,
    ! [SV73: $i,SV36: $i,SV89: $i,SV100: $i] :
      ( ( ( ~ ( in @ SV100 @ SV89 ) )
        = $true )
      | ( ( ( SV100 = SV36 )
          | ( SV100 = SV73 ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[662]) ).

thf(692,plain,
    ! [SV89: $i,SV73: $i,SV36: $i,SV100: $i] :
      ( ( ( ~ ( ( SV100 = SV36 )
              | ( SV100 = SV73 ) ) )
        = $true )
      | ( ( in @ SV100 @ SV89 )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[663]) ).

thf(693,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV36 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV73 ) )
              | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[664]) ).

thf(694,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV36 )
          | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV73 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV36 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV73 ) )
              | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[664]) ).

thf(695,plain,
    ! [SV41: $i,SV78: $i,SV97: $i] :
      ( ( ( in @ SV97 @ SV78 )
        = $false )
      | ( ( subset @ SV97 @ SV41 )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[665]) ).

thf(696,plain,
    ! [SV78: $i,SV41: $i,SV97: $i] :
      ( ( ( subset @ SV97 @ SV41 )
        = $false )
      | ( ( in @ SV97 @ SV78 )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[666]) ).

thf(697,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
              | ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) ) )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[667]) ).

thf(698,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
          | ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) )
        = $false )
      | ( ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
        = $false )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[668]) ).

thf(699,plain,
    ! [SV79: $i,SV42: $i,SV92: $i,SV101: $i] :
      ( ( ( ~ ( in @ SV101 @ SV92 ) )
        = $true )
      | ( ( ( in @ SV101 @ SV42 )
          | ( in @ SV101 @ SV79 ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[669]) ).

thf(700,plain,
    ! [SV92: $i,SV79: $i,SV42: $i,SV101: $i] :
      ( ( ( ~ ( ( in @ SV101 @ SV42 )
              | ( in @ SV101 @ SV79 ) ) )
        = $true )
      | ( ( in @ SV101 @ SV92 )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[670]) ).

thf(701,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[671]) ).

thf(702,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
          | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[671]) ).

thf(703,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ( ( sK5_SY185 @ SV10 @ SV49 )
           != SV10 )
          | ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 ) )
        = $false )
      | ( ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[674]) ).

thf(704,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ( sK5_SY185 @ SV10 @ SV49 )
         != SV10 )
        = $false )
      | ( ( ( sK5_SY185 @ SV10 @ SV49 )
          = SV10 )
        = $false )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[675]) ).

thf(705,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
        = $false )
      | ( ( ( sK5_SY185 @ SV10 @ SV49 )
          = SV10 )
        = $false )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[675]) ).

thf(706,plain,
    ! [SV55: $i,SV17: $i,SV95: $i] :
      ( ( ( ! [SY227: $i] :
              ~ ~ ( ~ ( in @ SV95 @ SY227 )
                  | ~ ( in @ SY227 @ SV17 ) ) )
        = $false )
      | ( ( in @ SV95 @ SV55 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[676]) ).

thf(707,plain,
    ! [SV55: $i,SV17: $i,SV95: $i] :
      ( ( ( ! [SY228: $i] :
              ~ ~ ( ~ ( in @ SV95 @ SY228 )
                  | ~ ( in @ SY228 @ SV17 ) ) )
        = $true )
      | ( ( in @ SV95 @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[677]) ).

thf(708,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ~ ! [SY230: $i] :
                  ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                      | ~ ( in @ SY230 @ SV17 ) )
          | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[678]) ).

thf(709,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
                | ~ ( in @ SV103 @ SV17 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[679]) ).

thf(710,plain,
    ! [SV19: $i,SV57: $i] :
      ( ( ( ~ ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV19 )
          | ~ ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV57 ) )
        = $false )
      | ( ( disjoint @ SV19 @ SV57 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[680]) ).

thf(711,plain,
    ! [SV57: $i,SV19: $i,SV102: $i] :
      ( ( ( ~ ( in @ SV102 @ SV19 ) )
        = $true )
      | ( ( ~ ( in @ SV102 @ SV57 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[681]) ).

thf(712,plain,
    ! [SV62: $i,SV25: $i,SV85: $i,SV98: $i] :
      ( ( ( in @ SV98 @ SV85 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV98 @ SV25 )
              | ~ ( in @ SV98 @ SV62 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[682]) ).

thf(713,plain,
    ! [SV85: $i,SV62: $i,SV25: $i,SV98: $i] :
      ( ( ( ~ ( ~ ( in @ SV98 @ SV25 )
              | ~ ( in @ SV98 @ SV62 ) ) )
        = $false )
      | ( ( in @ SV98 @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[683]) ).

thf(714,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[684]) ).

thf(715,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
          | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[685]) ).

thf(716,plain,
    ! [SV71: $i,SV34: $i,SV88: $i,SV99: $i] :
      ( ( ( in @ SV99 @ SV88 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV99 @ SV34 )
              | ~ ~ ( in @ SV99 @ SV71 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[687]) ).

thf(717,plain,
    ! [SV88: $i,SV71: $i,SV34: $i,SV99: $i] :
      ( ( ( ~ ( ~ ( in @ SV99 @ SV34 )
              | ~ ~ ( in @ SV99 @ SV71 ) ) )
        = $false )
      | ( ( in @ SV99 @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[688]) ).

thf(718,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[689]) ).

thf(719,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
          | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[690]) ).

thf(720,plain,
    ! [SV73: $i,SV36: $i,SV89: $i,SV100: $i] :
      ( ( ( in @ SV100 @ SV89 )
        = $false )
      | ( ( ( SV100 = SV36 )
          | ( SV100 = SV73 ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[691]) ).

thf(721,plain,
    ! [SV89: $i,SV73: $i,SV36: $i,SV100: $i] :
      ( ( ( ( SV100 = SV36 )
          | ( SV100 = SV73 ) )
        = $false )
      | ( ( in @ SV100 @ SV89 )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[692]) ).

thf(722,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV36 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV73 ) )
              | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[693]) ).

thf(723,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV36 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV36 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV73 ) )
              | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[694]) ).

thf(724,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV73 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV36 )
                  | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                    = SV73 ) )
              | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[694]) ).

thf(725,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
          | ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 ) )
        = $false )
      | ( ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[697]) ).

thf(726,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 ) )
        = $false )
      | ( ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
        = $false )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[698]) ).

thf(727,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
        = $false )
      | ( ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
        = $false )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[698]) ).

thf(728,plain,
    ! [SV79: $i,SV42: $i,SV92: $i,SV101: $i] :
      ( ( ( in @ SV101 @ SV92 )
        = $false )
      | ( ( ( in @ SV101 @ SV42 )
          | ( in @ SV101 @ SV79 ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[699]) ).

thf(729,plain,
    ! [SV92: $i,SV79: $i,SV42: $i,SV101: $i] :
      ( ( ( ( in @ SV101 @ SV42 )
          | ( in @ SV101 @ SV79 ) )
        = $false )
      | ( ( in @ SV101 @ SV92 )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[700]) ).

thf(730,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[701]) ).

thf(731,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[702]) ).

thf(732,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
                  | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) ) )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[702]) ).

thf(733,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ( sK5_SY185 @ SV10 @ SV49 )
         != SV10 )
        = $false )
      | ( ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[703]) ).

thf(734,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
        = $false )
      | ( ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[703]) ).

thf(735,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ( sK5_SY185 @ SV10 @ SV49 )
          = SV10 )
        = $true )
      | ( ( ( sK5_SY185 @ SV10 @ SV49 )
          = SV10 )
        = $false )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[704]) ).

thf(736,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV95 @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) )
                | ~ ( in @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) @ SV17 ) ) )
        = $false )
      | ( ( in @ SV95 @ SV55 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[706]) ).

thf(737,plain,
    ! [SV55: $i,SV17: $i,SV104: $i,SV95: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV95 @ SV104 )
                | ~ ( in @ SV104 @ SV17 ) ) )
        = $true )
      | ( ( in @ SV95 @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[707]) ).

thf(738,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ~ ! [SY230: $i] :
                  ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                      | ~ ( in @ SY230 @ SV17 ) ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[708]) ).

thf(739,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[708]) ).

thf(740,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
              | ~ ( in @ SV103 @ SV17 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[709]) ).

thf(741,plain,
    ! [SV19: $i,SV57: $i] :
      ( ( ( ~ ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV19 ) )
        = $false )
      | ( ( disjoint @ SV19 @ SV57 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[710]) ).

thf(742,plain,
    ! [SV19: $i,SV57: $i] :
      ( ( ( ~ ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV57 ) )
        = $false )
      | ( ( disjoint @ SV19 @ SV57 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[710]) ).

thf(743,plain,
    ! [SV57: $i,SV19: $i,SV102: $i] :
      ( ( ( in @ SV102 @ SV19 )
        = $false )
      | ( ( ~ ( in @ SV102 @ SV57 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[711]) ).

thf(744,plain,
    ! [SV85: $i,SV62: $i,SV25: $i,SV98: $i] :
      ( ( ( ~ ( in @ SV98 @ SV25 )
          | ~ ( in @ SV98 @ SV62 ) )
        = $false )
      | ( ( in @ SV98 @ SV85 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[712]) ).

thf(745,plain,
    ! [SV85: $i,SV62: $i,SV25: $i,SV98: $i] :
      ( ( ( ~ ( in @ SV98 @ SV25 )
          | ~ ( in @ SV98 @ SV62 ) )
        = $true )
      | ( ( in @ SV98 @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[713]) ).

thf(746,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
          | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[714]) ).

thf(747,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 ) )
        = $true )
      | ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[715]) ).

thf(748,plain,
    ! [SV88: $i,SV71: $i,SV34: $i,SV99: $i] :
      ( ( ( ~ ( in @ SV99 @ SV34 )
          | ~ ~ ( in @ SV99 @ SV71 ) )
        = $false )
      | ( ( in @ SV99 @ SV88 )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[716]) ).

thf(749,plain,
    ! [SV88: $i,SV71: $i,SV34: $i,SV99: $i] :
      ( ( ( ~ ( in @ SV99 @ SV34 )
          | ~ ~ ( in @ SV99 @ SV71 ) )
        = $true )
      | ( ( in @ SV99 @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[717]) ).

thf(750,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
          | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[718]) ).

thf(751,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 ) )
        = $true )
      | ( ( ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[719]) ).

thf(752,plain,
    ! [SV89: $i,SV73: $i,SV36: $i,SV100: $i] :
      ( ( ( SV100 = SV36 )
        = $true )
      | ( ( SV100 = SV73 )
        = $true )
      | ( ( in @ SV100 @ SV89 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[720]) ).

thf(753,plain,
    ! [SV73: $i,SV89: $i,SV36: $i,SV100: $i] :
      ( ( ( SV100 = SV36 )
        = $false )
      | ( ( in @ SV100 @ SV89 )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[721]) ).

thf(754,plain,
    ! [SV36: $i,SV89: $i,SV73: $i,SV100: $i] :
      ( ( ( SV100 = SV73 )
        = $false )
      | ( ( in @ SV100 @ SV89 )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[721]) ).

thf(755,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV36 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV73 ) )
          | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) )
        = $false )
      | ( ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[722]) ).

thf(756,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV36 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV73 ) )
          | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) )
        = $false )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV36 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[723]) ).

thf(757,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV36 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV73 ) )
          | ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 ) )
        = $false )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV73 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[724]) ).

thf(758,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( ~ ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 ) )
        = $false )
      | ( ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[725]) ).

thf(759,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
        = $false )
      | ( ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[725]) ).

thf(760,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
        = $true )
      | ( ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
        = $false )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[726]) ).

thf(761,plain,
    ! [SV92: $i,SV79: $i,SV42: $i,SV101: $i] :
      ( ( ( in @ SV101 @ SV42 )
        = $true )
      | ( ( in @ SV101 @ SV79 )
        = $true )
      | ( ( in @ SV101 @ SV92 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[728]) ).

thf(762,plain,
    ! [SV79: $i,SV92: $i,SV42: $i,SV101: $i] :
      ( ( ( in @ SV101 @ SV42 )
        = $false )
      | ( ( in @ SV101 @ SV92 )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[729]) ).

thf(763,plain,
    ! [SV42: $i,SV92: $i,SV79: $i,SV101: $i] :
      ( ( ( in @ SV101 @ SV79 )
        = $false )
      | ( ( in @ SV101 @ SV92 )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[729]) ).

thf(764,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
          | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) )
        = $false )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[730]) ).

thf(765,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
          | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) )
        = $false )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[731]) ).

thf(766,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
          | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 ) )
        = $false )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[732]) ).

thf(767,plain,
    ! [SV49: $i,SV10: $i] :
      ( ( ( ( sK5_SY185 @ SV10 @ SV49 )
          = SV10 )
        = $true )
      | ( ( in @ ( sK5_SY185 @ SV10 @ SV49 ) @ SV49 )
        = $true )
      | ( ( SV49
          = ( singleton @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[733]) ).

thf(768,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( ~ ( ~ ( in @ SV95 @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) )
              | ~ ( in @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) @ SV17 ) ) )
        = $true )
      | ( ( in @ SV95 @ SV55 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[736]) ).

thf(769,plain,
    ! [SV55: $i,SV17: $i,SV104: $i,SV95: $i] :
      ( ( ( ~ ( ~ ( in @ SV95 @ SV104 )
              | ~ ( in @ SV104 @ SV17 ) ) )
        = $false )
      | ( ( in @ SV95 @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[737]) ).

thf(770,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ! [SY230: $i] :
                ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                    | ~ ( in @ SY230 @ SV17 ) ) )
        = $true )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[738]) ).

thf(771,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
          | ~ ( in @ SV103 @ SV17 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[740]) ).

thf(772,plain,
    ! [SV19: $i,SV57: $i] :
      ( ( ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV19 )
        = $true )
      | ( ( disjoint @ SV19 @ SV57 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[741]) ).

thf(773,plain,
    ! [SV19: $i,SV57: $i] :
      ( ( ( in @ ( sK13_SY194 @ SV57 @ SV19 ) @ SV57 )
        = $true )
      | ( ( disjoint @ SV19 @ SV57 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[742]) ).

thf(774,plain,
    ! [SV19: $i,SV57: $i,SV102: $i] :
      ( ( ( in @ SV102 @ SV57 )
        = $false )
      | ( ( in @ SV102 @ SV19 )
        = $false )
      | ( ( ~ ( disjoint @ SV19 @ SV57 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[743]) ).

thf(775,plain,
    ! [SV62: $i,SV85: $i,SV25: $i,SV98: $i] :
      ( ( ( ~ ( in @ SV98 @ SV25 ) )
        = $false )
      | ( ( in @ SV98 @ SV85 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[744]) ).

thf(776,plain,
    ! [SV25: $i,SV85: $i,SV62: $i,SV98: $i] :
      ( ( ( ~ ( in @ SV98 @ SV62 ) )
        = $false )
      | ( ( in @ SV98 @ SV85 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[744]) ).

thf(777,plain,
    ! [SV85: $i,SV62: $i,SV25: $i,SV98: $i] :
      ( ( ( ~ ( in @ SV98 @ SV25 ) )
        = $true )
      | ( ( ~ ( in @ SV98 @ SV62 ) )
        = $true )
      | ( ( in @ SV98 @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[745]) ).

thf(778,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[746]) ).

thf(779,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[746]) ).

thf(780,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[747]) ).

thf(781,plain,
    ! [SV71: $i,SV88: $i,SV34: $i,SV99: $i] :
      ( ( ( ~ ( in @ SV99 @ SV34 ) )
        = $false )
      | ( ( in @ SV99 @ SV88 )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[748]) ).

thf(782,plain,
    ! [SV34: $i,SV88: $i,SV71: $i,SV99: $i] :
      ( ( ( ~ ~ ( in @ SV99 @ SV71 ) )
        = $false )
      | ( ( in @ SV99 @ SV88 )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[748]) ).

thf(783,plain,
    ! [SV88: $i,SV71: $i,SV34: $i,SV99: $i] :
      ( ( ( ~ ( in @ SV99 @ SV34 ) )
        = $true )
      | ( ( ~ ~ ( in @ SV99 @ SV71 ) )
        = $true )
      | ( ( in @ SV99 @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[749]) ).

thf(784,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[750]) ).

thf(785,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[750]) ).

thf(786,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[751]) ).

thf(787,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV36 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV73 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[755]) ).

thf(788,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
        = $false )
      | ( ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[755]) ).

thf(789,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV36 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV73 ) ) )
        = $false )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV36 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[756]) ).

thf(790,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
        = $false )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV36 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[756]) ).

thf(791,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ~ ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV36 )
              | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
                = SV73 ) ) )
        = $false )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV73 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[757]) ).

thf(792,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
        = $false )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV73 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[757]) ).

thf(793,plain,
    ! [SV78: $i,SV41: $i] :
      ( ( ( subset @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV41 )
        = $true )
      | ( ( in @ ( sK8_SY215 @ SV41 @ SV78 ) @ SV78 )
        = $true )
      | ( ( SV78
          = ( powerset @ SV41 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[758]) ).

thf(794,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) ) )
        = $false )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[764]) ).

thf(795,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
        = $false )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[764]) ).

thf(796,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) ) )
        = $false )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[765]) ).

thf(797,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
        = $false )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[765]) ).

thf(798,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ~ ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
              | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) ) )
        = $false )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[766]) ).

thf(799,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
        = $false )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[766]) ).

thf(800,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( ~ ( in @ SV95 @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) )
          | ~ ( in @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) @ SV17 ) )
        = $false )
      | ( ( in @ SV95 @ SV55 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[768]) ).

thf(801,plain,
    ! [SV55: $i,SV17: $i,SV104: $i,SV95: $i] :
      ( ( ( ~ ( in @ SV95 @ SV104 )
          | ~ ( in @ SV104 @ SV17 ) )
        = $true )
      | ( ( in @ SV95 @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[769]) ).

thf(802,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ! [SY230: $i] :
              ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                  | ~ ( in @ SY230 @ SV17 ) ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[770]) ).

thf(803,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 ) )
        = $true )
      | ( ( ~ ( in @ SV103 @ SV17 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[771]) ).

thf(804,plain,
    ! [SV102: $i,SV57: $i,SV19: $i] :
      ( ( ( disjoint @ SV19 @ SV57 )
        = $false )
      | ( ( in @ SV102 @ SV19 )
        = $false )
      | ( ( in @ SV102 @ SV57 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[774]) ).

thf(805,plain,
    ! [SV62: $i,SV85: $i,SV25: $i,SV98: $i] :
      ( ( ( in @ SV98 @ SV25 )
        = $true )
      | ( ( in @ SV98 @ SV85 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[775]) ).

thf(806,plain,
    ! [SV25: $i,SV85: $i,SV62: $i,SV98: $i] :
      ( ( ( in @ SV98 @ SV62 )
        = $true )
      | ( ( in @ SV98 @ SV85 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[776]) ).

thf(807,plain,
    ! [SV85: $i,SV62: $i,SV25: $i,SV98: $i] :
      ( ( ( in @ SV98 @ SV25 )
        = $false )
      | ( ( ~ ( in @ SV98 @ SV62 ) )
        = $true )
      | ( ( in @ SV98 @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[777]) ).

thf(808,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
              | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) ) )
        = $true )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[778]) ).

thf(809,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                    | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
              | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) ) )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[780]) ).

thf(810,plain,
    ! [SV71: $i,SV88: $i,SV34: $i,SV99: $i] :
      ( ( ( in @ SV99 @ SV34 )
        = $true )
      | ( ( in @ SV99 @ SV88 )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[781]) ).

thf(811,plain,
    ! [SV34: $i,SV88: $i,SV71: $i,SV99: $i] :
      ( ( ( ~ ( in @ SV99 @ SV71 ) )
        = $true )
      | ( ( in @ SV99 @ SV88 )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[782]) ).

thf(812,plain,
    ! [SV88: $i,SV71: $i,SV34: $i,SV99: $i] :
      ( ( ( in @ SV99 @ SV34 )
        = $false )
      | ( ( ~ ~ ( in @ SV99 @ SV71 ) )
        = $true )
      | ( ( in @ SV99 @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[783]) ).

thf(813,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
              | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) ) )
        = $true )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[784]) ).

thf(814,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[786]) ).

thf(815,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV36 )
          | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV73 ) )
        = $true )
      | ( ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[787]) ).

thf(816,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV36 )
          | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV73 ) )
        = $true )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV36 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[789]) ).

thf(817,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV36 )
          | ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
            = SV73 ) )
        = $true )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV73 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[791]) ).

thf(818,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
          | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
        = $true )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[794]) ).

thf(819,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
          | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
        = $true )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[796]) ).

thf(820,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
          | ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 ) )
        = $true )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[798]) ).

thf(821,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( ~ ( in @ SV95 @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) ) )
        = $false )
      | ( ( in @ SV95 @ SV55 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[800]) ).

thf(822,plain,
    ! [SV95: $i,SV17: $i,SV55: $i] :
      ( ( ( ~ ( in @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) @ SV17 ) )
        = $false )
      | ( ( in @ SV95 @ SV55 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[800]) ).

thf(823,plain,
    ! [SV55: $i,SV17: $i,SV104: $i,SV95: $i] :
      ( ( ( ~ ( in @ SV95 @ SV104 ) )
        = $true )
      | ( ( ~ ( in @ SV104 @ SV17 ) )
        = $true )
      | ( ( in @ SV95 @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[801]) ).

thf(824,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK15_SY230 @ SV55 @ SV17 ) )
                | ~ ( in @ ( sK15_SY230 @ SV55 @ SV17 ) @ SV17 ) ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[802]) ).

thf(825,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( ~ ( in @ SV103 @ SV17 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[803]) ).

thf(826,plain,
    ! [SV85: $i,SV25: $i,SV62: $i,SV98: $i] :
      ( ( ( in @ SV98 @ SV62 )
        = $false )
      | ( ( in @ SV98 @ SV25 )
        = $false )
      | ( ( in @ SV98 @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[807]) ).

thf(827,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
          | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[808]) ).

thf(828,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
          | ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[809]) ).

thf(829,plain,
    ! [SV34: $i,SV88: $i,SV71: $i,SV99: $i] :
      ( ( ( in @ SV99 @ SV71 )
        = $false )
      | ( ( in @ SV99 @ SV88 )
        = $false )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[811]) ).

thf(830,plain,
    ! [SV88: $i,SV34: $i,SV71: $i,SV99: $i] :
      ( ( ( ~ ( in @ SV99 @ SV71 ) )
        = $false )
      | ( ( in @ SV99 @ SV34 )
        = $false )
      | ( ( in @ SV99 @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[812]) ).

thf(831,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
          | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[813]) ).

thf(832,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                    | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
              | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) ) )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[814]) ).

thf(833,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV36 )
        = $true )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV73 )
        = $true )
      | ( ( in @ ( sK11_SY224 @ SV73 @ SV36 @ SV89 ) @ SV89 )
        = $true )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[815]) ).

thf(834,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV36 )
        = $true )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV73 )
        = $true )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV36 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[816]) ).

thf(835,plain,
    ! [SV89: $i,SV36: $i,SV73: $i] :
      ( ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV36 )
        = $true )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV73 )
        = $true )
      | ( ( ( sK11_SY224 @ SV73 @ SV36 @ SV89 )
          = SV73 )
        = $false )
      | ( ( SV89
          = ( unordered_pair @ SV36 @ SV73 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[817]) ).

thf(836,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
        = $true )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 )
        = $true )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV92 )
        = $true )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[818]) ).

thf(837,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
        = $true )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 )
        = $true )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[819]) ).

thf(838,plain,
    ! [SV92: $i,SV42: $i,SV79: $i] :
      ( ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV42 )
        = $true )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 )
        = $true )
      | ( ( in @ ( sK12_SY226 @ SV79 @ SV42 @ SV92 ) @ SV79 )
        = $false )
      | ( ( SV92
          = ( set_union2 @ SV42 @ SV79 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[820]) ).

thf(839,plain,
    ! [SV17: $i,SV55: $i,SV95: $i] :
      ( ( ( in @ SV95 @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) )
        = $true )
      | ( ( in @ SV95 @ SV55 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[821]) ).

thf(840,plain,
    ! [SV95: $i,SV17: $i,SV55: $i] :
      ( ( ( in @ ( sK14_SY227 @ SV55 @ SV17 @ SV95 ) @ SV17 )
        = $true )
      | ( ( in @ SV95 @ SV55 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[822]) ).

thf(841,plain,
    ! [SV55: $i,SV17: $i,SV104: $i,SV95: $i] :
      ( ( ( in @ SV95 @ SV104 )
        = $false )
      | ( ( ~ ( in @ SV104 @ SV17 ) )
        = $true )
      | ( ( in @ SV95 @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[823]) ).

thf(842,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK15_SY230 @ SV55 @ SV17 ) )
              | ~ ( in @ ( sK15_SY230 @ SV55 @ SV17 ) @ SV17 ) ) )
        = $true )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[824]) ).

thf(843,plain,
    ! [SV55: $i,SV17: $i,SV103: $i] :
      ( ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY230: $i] :
                      ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                          | ~ ( in @ SY230 @ SV17 ) )
              | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) ) )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[825]) ).

thf(844,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[827]) ).

thf(845,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[827]) ).

thf(846,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
                | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[828]) ).

thf(847,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[828]) ).

thf(848,plain,
    ! [SV88: $i,SV34: $i,SV71: $i,SV99: $i] :
      ( ( ( in @ SV99 @ SV71 )
        = $true )
      | ( ( in @ SV99 @ SV34 )
        = $false )
      | ( ( in @ SV99 @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[830]) ).

thf(849,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[831]) ).

thf(850,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[831]) ).

thf(851,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
          | ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[832]) ).

thf(852,plain,
    ! [SV55: $i,SV95: $i,SV17: $i,SV104: $i] :
      ( ( ( in @ SV104 @ SV17 )
        = $false )
      | ( ( in @ SV95 @ SV104 )
        = $false )
      | ( ( in @ SV95 @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[841]) ).

thf(853,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK15_SY230 @ SV55 @ SV17 ) )
          | ~ ( in @ ( sK15_SY230 @ SV55 @ SV17 ) @ SV17 ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[842]) ).

thf(854,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ~ ! [SY230: $i] :
                  ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                      | ~ ( in @ SY230 @ SV17 ) )
          | ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[843]) ).

thf(855,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $true )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[844]) ).

thf(856,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $true )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV85 )
        = $true )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[845]) ).

thf(857,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
              | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) ) )
        = $true )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[846]) ).

thf(858,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $true )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[849]) ).

thf(859,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $true )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[850]) ).

thf(860,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
                | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[851]) ).

thf(861,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[851]) ).

thf(862,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK15_SY230 @ SV55 @ SV17 ) ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[853]) ).

thf(863,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ( ~ ( in @ ( sK15_SY230 @ SV55 @ SV17 ) @ SV17 ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[853]) ).

thf(864,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ~ ! [SY230: $i] :
                  ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                      | ~ ( in @ SY230 @ SV17 ) ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[854]) ).

thf(865,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[854]) ).

thf(866,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
          | ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[857]) ).

thf(867,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV88 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[859]) ).

thf(868,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
              | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) ) )
        = $true )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[860]) ).

thf(869,plain,
    ! [SV55: $i,SV17: $i] :
      ( ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK15_SY230 @ SV55 @ SV17 ) )
        = $true )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[862]) ).

thf(870,plain,
    ! [SV17: $i,SV55: $i] :
      ( ( ( in @ ( sK15_SY230 @ SV55 @ SV17 ) @ SV17 )
        = $true )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[863]) ).

thf(871,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ! [SY230: $i] :
                ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                    | ~ ( in @ SY230 @ SV17 ) ) )
        = $true )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[864]) ).

thf(872,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[866]) ).

thf(873,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( ~ ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 ) )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[866]) ).

thf(874,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
          | ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[868]) ).

thf(875,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ! [SY230: $i] :
              ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SY230 )
                  | ~ ( in @ SY230 @ SV17 ) ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[871]) ).

thf(876,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $true )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[872]) ).

thf(877,plain,
    ! [SV85: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $true )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV25 )
        = $false )
      | ( ( in @ ( sK9_SY220 @ SV62 @ SV25 @ SV85 ) @ SV62 )
        = $false )
      | ( ( SV85
          = ( set_intersection2 @ SV25 @ SV62 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[873]) ).

thf(878,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[874]) ).

thf(879,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[874]) ).

thf(880,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) )
                | ~ ( in @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) @ SV17 ) ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[875]) ).

thf(881,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $true )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[878]) ).

thf(882,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( ~ ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 ) )
        = $true )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[879]) ).

thf(883,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) )
              | ~ ( in @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) @ SV17 ) ) )
        = $true )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[880]) ).

thf(884,plain,
    ! [SV88: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV34 )
        = $false )
      | ( ( in @ ( sK10_SY222 @ SV71 @ SV34 @ SV88 ) @ SV71 )
        = $true )
      | ( ( SV88
          = ( set_difference @ SV34 @ SV71 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[882]) ).

thf(885,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) )
          | ~ ( in @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) @ SV17 ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[883]) ).

thf(886,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( ~ ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[885]) ).

thf(887,plain,
    ! [SV17: $i,SV55: $i,SV103: $i] :
      ( ( ( ~ ( in @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) @ SV17 ) )
        = $false )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[885]) ).

thf(888,plain,
    ! [SV103: $i,SV55: $i,SV17: $i] :
      ( ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) )
        = $true )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[886]) ).

thf(889,plain,
    ! [SV17: $i,SV55: $i,SV103: $i] :
      ( ( ( in @ ( sK16_SY230 @ SV103 @ SV55 @ SV17 ) @ SV17 )
        = $true )
      | ( ( in @ ( sK6_SY191 @ SV17 @ SV55 ) @ SV103 )
        = $false )
      | ( ( in @ SV103 @ SV17 )
        = $false )
      | ( ( SV55
          = ( union @ SV17 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[887]) ).

thf(890,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[188,889,888,884,881,877,876,870,869,867,865,861,858,856,855,852,848,847,840,839,838,837,836,835,834,833,829,826,810,806,805,804,799,797,795,793,792,790,788,785,779,773,772,767,763,762,761,760,759,754,753,752,739,735,734,727,705,696,695,686,673,672,658,657,655,629,625,613,599,598,597,585,584,579,578,568,565,556,534,533,528,527,526,516,501,500,495,490,454,442,437,431,425,422,414,393,389,386,383,370,332,331,296,287,285,284,283,282,242,240,197,196,195,194,193,192,191,190,189]) ).

thf(891,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[142]) ).

thf(892,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[141]) ).

thf(893,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( disjoint @ ( singleton @ A ) @ B )
            & ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[140]) ).

thf(894,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[139]) ).

thf(895,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[138]) ).

thf(896,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( in @ C @ A )
            | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[137]) ).

thf(897,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[136]) ).

thf(898,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[135]) ).

thf(899,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[134]) ).

thf(900,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[133]) ).

thf(901,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ A @ C ) )
         => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[132]) ).

thf(902,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[131]) ).

thf(903,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[130]) ).

thf(904,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[129]) ).

thf(905,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[128]) ).

thf(906,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[127]) ).

thf(907,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[126]) ).

thf(908,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)],[125]) ).

thf(909,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[124]) ).

thf(910,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[123]) ).

thf(911,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[122]) ).

thf(912,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[121]) ).

thf(913,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[120]) ).

thf(914,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[119]) ).

thf(915,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ B ) )
         => ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[118]) ).

thf(916,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[117]) ).

thf(917,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(918,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[115]) ).

thf(919,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[114]) ).

thf(920,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[113]) ).

thf(921,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[112]) ).

thf(922,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[111]) ).

thf(923,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)],[110]) ).

thf(924,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)],[109]) ).

thf(925,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[108]) ).

thf(926,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)],[107]) ).

thf(927,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)],[106]) ).

thf(928,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)],[105]) ).

thf(929,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[104]) ).

thf(930,plain,
    $true = $true,
    inference(copy,[status(thm)],[103]) ).

thf(931,plain,
    $true = $true,
    inference(copy,[status(thm)],[102]) ).

thf(932,plain,
    $true = $true,
    inference(copy,[status(thm)],[101]) ).

thf(933,plain,
    $true = $true,
    inference(copy,[status(thm)],[100]) ).

thf(934,plain,
    $true = $true,
    inference(copy,[status(thm)],[99]) ).

thf(935,plain,
    $true = $true,
    inference(copy,[status(thm)],[98]) ).

thf(936,plain,
    $true = $true,
    inference(copy,[status(thm)],[97]) ).

thf(937,plain,
    $true = $true,
    inference(copy,[status(thm)],[96]) ).

thf(938,plain,
    $true = $true,
    inference(copy,[status(thm)],[95]) ).

thf(939,plain,
    $true = $true,
    inference(copy,[status(thm)],[94]) ).

thf(940,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[93]) ).

thf(941,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[92]) ).

thf(942,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[91]) ).

thf(943,plain,
    ( ( ~ ( ( in @ sK1_A @ sK2_SY107 )
         => ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 ) ) )
    = $true ),
    inference(copy,[status(thm)],[148]) ).

thf(944,plain,
    ( ( ! [SX0: $i] :
          ( ( singleton @ SX0 )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[891]) ).

thf(945,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)],[927]) ).

thf(946,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) )
            | ~ ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[895]) ).

thf(947,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX2 @ SX1 ) )
          | ( subset @ ( set_union2 @ SX0 @ SX2 ) @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[915]) ).

thf(948,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[904]) ).

thf(949,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)],[925]) ).

thf(950,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( subset @ SX0 @ SX1 )
              | ~ ( proper_subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[910]) ).

thf(951,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)],[924]) ).

thf(952,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( proper_subset @ SX0 @ SX1 )
                | ~ ( ~ ( subset @ SX0 @ SX1 )
                    | ~ ( ( SX0 != SX1 ) ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                      | ~ ( ( SX0 != SX1 ) ) )
                | ( proper_subset @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[929]) ).

thf(953,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( in @ SX0 @ SX1 )
              | ~ ( empty @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[942]) ).

thf(954,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
            | ~ ( ~ ( ( SX0 = empty_set )
                    | ( SX0
                      = ( singleton @ SX1 ) ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[897]) ).

thf(955,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)],[941]) ).

thf(956,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ( ( singleton @ SX0 )
           != ( unordered_pair @ SX1 @ SX2 ) )
          | ( SX1 = SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[917]) ).

thf(957,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ SX0 @ ( union @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[898]) ).

thf(958,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( subset @ ( set_difference @ SX0 @ SX2 ) @ ( set_difference @ SX1 @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[906]) ).

thf(959,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[918]) ).

thf(960,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( subset @ SX0 @ empty_set )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[909]) ).

thf(961,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ( ( SX0 != SX1 )
                | ~ ( ~ ( subset @ SX0 @ SX1 )
                    | ~ ( subset @ SX1 @ SX0 ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                      | ~ ( subset @ SX1 @ SX0 ) )
                | ( SX0 = SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[919]) ).

thf(962,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)],[908]) ).

thf(963,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( subset @ ( set_intersection2 @ SX0 @ SX2 ) @ ( set_intersection2 @ SX1 @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[903]) ).

thf(964,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)],[928]) ).

thf(965,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( in @ SX2 @ SX0 )
          | ( subset @ SX0 @ ( set_difference @ SX1 @ ( singleton @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[896]) ).

thf(966,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)],[921]) ).

thf(967,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_union2 @ SX0 @ SX1 )
            = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[899]) ).

thf(968,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX1 @ SX2 ) )
          | ( subset @ SX0 @ SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[902]) ).

thf(969,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)],[922]) ).

thf(970,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( disjoint @ ( singleton @ SX0 ) @ SX1 )
              | ~ ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[893]) ).

thf(971,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)],[920]) ).

thf(972,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ~ ( in @ SX0 @ SX1 )
          | ( disjoint @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[894]) ).

thf(973,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ( ( singleton @ SX0 )
           != ( unordered_pair @ SX1 @ SX2 ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[916]) ).

thf(974,plain,
    ( ( ~ ( ~ ( in @ sK1_A @ sK2_SY107 )
          | ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[943]) ).

thf(975,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( ( set_union2 @ ( singleton @ SX0 ) @ SX1 )
            = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[892]) ).

thf(976,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)],[926]) ).

thf(977,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( disjoint @ SX1 @ SX2 ) )
          | ( disjoint @ SX0 @ SX2 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[911]) ).

thf(978,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)],[923]) ).

thf(979,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ~ ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX0 @ SX2 ) )
          | ( subset @ SX0 @ ( set_intersection2 @ SX1 @ SX2 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[901]) ).

thf(980,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ ( singleton @ SX1 ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[913]) ).

thf(981,plain,
    ! [SV105: $i] :
      ( ( ! [SY231: $i] : ( subset @ ( set_intersection2 @ SV105 @ SY231 ) @ SV105 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[900]) ).

thf(982,plain,
    ! [SV106: $i] :
      ( ( subset @ empty_set @ SV106 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[905]) ).

thf(983,plain,
    ! [SV107: $i] :
      ( ( ! [SY232: $i] : ( subset @ ( set_difference @ SV107 @ SY232 ) @ SV107 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[907]) ).

thf(984,plain,
    ! [SV108: $i] :
      ( ( ( unordered_pair @ SV108 @ SV108 )
        = ( singleton @ SV108 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[912]) ).

thf(985,plain,
    ! [SV109: $i] :
      ( ( ! [SY233: $i] : ( subset @ SV109 @ ( set_union2 @ SV109 @ SY233 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[914]) ).

thf(986,plain,
    ! [SV110: $i] :
      ( ( ! [SY234: $i] : ( subset @ SV110 @ SV110 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[940]) ).

thf(987,plain,
    ! [SV111: $i] :
      ( ( ( singleton @ SV111 )
       != empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[944]) ).

thf(988,plain,
    ! [SV112: $i] :
      ( ( ! [SY235: $i] :
            ~ ( ~ ( ( SY235
                   != ( union @ SV112 ) )
                  | ! [SY236: $i] :
                      ~ ( ~ ( ~ ( in @ SY236 @ SY235 )
                            | ~ ! [SY237: $i] :
                                  ~ ~ ( ~ ( in @ SY236 @ SY237 )
                                      | ~ ( in @ SY237 @ SV112 ) ) )
                        | ~ ( ~ ~ ! [SY238: $i] :
                                    ~ ~ ( ~ ( in @ SY236 @ SY238 )
                                        | ~ ( in @ SY238 @ SV112 ) )
                            | ( in @ SY236 @ SY235 ) ) ) )
              | ~ ( ~ ! [SY239: $i] :
                        ~ ( ~ ( ~ ( in @ SY239 @ SY235 )
                              | ~ ! [SY240: $i] :
                                    ~ ~ ( ~ ( in @ SY239 @ SY240 )
                                        | ~ ( in @ SY240 @ SV112 ) ) )
                          | ~ ( ~ ~ ! [SY241: $i] :
                                      ~ ~ ( ~ ( in @ SY239 @ SY241 )
                                          | ~ ( in @ SY241 @ SV112 ) )
                              | ( in @ SY239 @ SY235 ) ) )
                  | ( SY235
                    = ( union @ SV112 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[945]) ).

thf(989,plain,
    ! [SV113: $i] :
      ( ( ! [SY242: $i] :
            ~ ( ~ ( ~ ( subset @ ( singleton @ SV113 ) @ SY242 )
                  | ( in @ SV113 @ SY242 ) )
              | ~ ( ~ ( in @ SV113 @ SY242 )
                  | ( subset @ ( singleton @ SV113 ) @ SY242 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[946]) ).

thf(990,plain,
    ! [SV114: $i] :
      ( ( ! [SY243: $i,SY244: $i] :
            ( ~ ~ ( ~ ( subset @ SV114 @ SY243 )
                  | ~ ( subset @ SY244 @ SY243 ) )
            | ( subset @ ( set_union2 @ SV114 @ SY244 ) @ SY243 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[947]) ).

thf(991,plain,
    ! [SV115: $i] :
      ( ( ! [SY245: $i] :
            ( ~ ( subset @ SV115 @ SY245 )
            | ( ( set_intersection2 @ SV115 @ SY245 )
              = SV115 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[948]) ).

thf(992,plain,
    ! [SV116: $i] :
      ( ( ! [SY246: $i] :
            ~ ( ~ ( ~ ( subset @ SV116 @ SY246 )
                  | ! [SY247: $i] :
                      ( ~ ( in @ SY247 @ SV116 )
                      | ( in @ SY247 @ SY246 ) ) )
              | ~ ( ~ ! [SY248: $i] :
                        ( ~ ( in @ SY248 @ SV116 )
                        | ( in @ SY248 @ SY246 ) )
                  | ( subset @ SV116 @ SY246 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[949]) ).

thf(993,plain,
    ! [SV117: $i] :
      ( ( ! [SY249: $i] :
            ~ ~ ( ~ ( subset @ SV117 @ SY249 )
                | ~ ( proper_subset @ SY249 @ SV117 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[950]) ).

thf(994,plain,
    ! [SV118: $i] :
      ( ( ! [SY250: $i,SY251: $i] :
            ~ ( ~ ( ( SY251
                   != ( set_union2 @ SV118 @ SY250 ) )
                  | ! [SY252: $i] :
                      ~ ( ~ ( ~ ( in @ SY252 @ SY251 )
                            | ( in @ SY252 @ SV118 )
                            | ( in @ SY252 @ SY250 ) )
                        | ~ ( ~ ( ( in @ SY252 @ SV118 )
                                | ( in @ SY252 @ SY250 ) )
                            | ( in @ SY252 @ SY251 ) ) ) )
              | ~ ( ~ ! [SY253: $i] :
                        ~ ( ~ ( ~ ( in @ SY253 @ SY251 )
                              | ( in @ SY253 @ SV118 )
                              | ( in @ SY253 @ SY250 ) )
                          | ~ ( ~ ( ( in @ SY253 @ SV118 )
                                  | ( in @ SY253 @ SY250 ) )
                              | ( in @ SY253 @ SY251 ) ) )
                  | ( SY251
                    = ( set_union2 @ SV118 @ SY250 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[951]) ).

thf(995,plain,
    ! [SV119: $i] :
      ( ( ! [SY254: $i] :
            ~ ( ~ ( ~ ( proper_subset @ SV119 @ SY254 )
                  | ~ ( ~ ( subset @ SV119 @ SY254 )
                      | ~ ( ( SV119 != SY254 ) ) ) )
              | ~ ( ~ ~ ( ~ ( subset @ SV119 @ SY254 )
                        | ~ ( ( SV119 != SY254 ) ) )
                  | ( proper_subset @ SV119 @ SY254 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[952]) ).

thf(996,plain,
    ! [SV120: $i] :
      ( ( ! [SY255: $i] :
            ~ ~ ( ~ ( in @ SV120 @ SY255 )
                | ~ ( empty @ SY255 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[953]) ).

thf(997,plain,
    ! [SV121: $i] :
      ( ( ! [SY256: $i] :
            ~ ( ~ ( ~ ( subset @ SV121 @ ( singleton @ SY256 ) )
                  | ( SV121 = empty_set )
                  | ( SV121
                    = ( singleton @ SY256 ) ) )
              | ~ ( ~ ( ( SV121 = empty_set )
                      | ( SV121
                        = ( singleton @ SY256 ) ) )
                  | ( subset @ SV121 @ ( singleton @ SY256 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[954]) ).

thf(998,plain,
    ! [SV122: $i] :
      ( ( ! [SY257: $i] :
            ( ~ ! [SY258: $i] :
                  ~ ( ~ ( ~ ( in @ SY258 @ SV122 )
                        | ( in @ SY258 @ SY257 ) )
                    | ~ ( ~ ( in @ SY258 @ SY257 )
                        | ( in @ SY258 @ SV122 ) ) )
            | ( SV122 = SY257 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[955]) ).

thf(999,plain,
    ! [SV123: $i] :
      ( ( ! [SY259: $i,SY260: $i] :
            ( ( ( singleton @ SV123 )
             != ( unordered_pair @ SY259 @ SY260 ) )
            | ( SY259 = SY260 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[956]) ).

thf(1000,plain,
    ! [SV124: $i] :
      ( ( ! [SY261: $i] :
            ( ~ ( in @ SV124 @ SY261 )
            | ( subset @ SV124 @ ( union @ SY261 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[957]) ).

thf(1001,plain,
    ! [SV125: $i] :
      ( ( ! [SY262: $i,SY263: $i] :
            ( ~ ( subset @ SV125 @ SY262 )
            | ( subset @ ( set_difference @ SV125 @ SY263 ) @ ( set_difference @ SY262 @ SY263 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[958]) ).

thf(1002,plain,
    ! [SV126: $i] :
      ( ( ! [SY264: $i] :
            ( ~ ( in @ SV126 @ SY264 )
            | ~ ( in @ SY264 @ SV126 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[959]) ).

thf(1003,plain,
    ! [SV127: $i] :
      ( ( ~ ( subset @ SV127 @ empty_set )
        | ( SV127 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[960]) ).

thf(1004,plain,
    ! [SV128: $i] :
      ( ( ! [SY265: $i] :
            ~ ( ~ ( ( SV128 != SY265 )
                  | ~ ( ~ ( subset @ SV128 @ SY265 )
                      | ~ ( subset @ SY265 @ SV128 ) ) )
              | ~ ( ~ ~ ( ~ ( subset @ SV128 @ SY265 )
                        | ~ ( subset @ SY265 @ SV128 ) )
                  | ( SV128 = SY265 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[961]) ).

thf(1005,plain,
    ! [SV129: $i] :
      ( ( ! [SY266: $i] :
            ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV129 @ SY266 )
                      | ~ ! [SY267: $i] :
                            ~ ~ ( ~ ( in @ SY267 @ SV129 )
                                | ~ ( in @ SY267 @ SY266 ) ) )
              | ~ ~ ~ ( ~ ~ ! [SY268: $i] :
                              ~ ~ ( ~ ( in @ SY268 @ SV129 )
                                  | ~ ( in @ SY268 @ SY266 ) )
                      | ~ ( disjoint @ SV129 @ SY266 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[962]) ).

thf(1006,plain,
    ! [SV130: $i] :
      ( ( ! [SY269: $i,SY270: $i] :
            ( ~ ( subset @ SV130 @ SY269 )
            | ( subset @ ( set_intersection2 @ SV130 @ SY270 ) @ ( set_intersection2 @ SY269 @ SY270 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[963]) ).

thf(1007,plain,
    ! [SV131: $i] :
      ( ( ! [SY271: $i,SY272: $i] :
            ~ ( ~ ( ( SY272
                   != ( set_difference @ SV131 @ SY271 ) )
                  | ! [SY273: $i] :
                      ~ ( ~ ( ~ ( in @ SY273 @ SY272 )
                            | ~ ( ~ ( in @ SY273 @ SV131 )
                                | ~ ~ ( in @ SY273 @ SY271 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY273 @ SV131 )
                                  | ~ ~ ( in @ SY273 @ SY271 ) )
                            | ( in @ SY273 @ SY272 ) ) ) )
              | ~ ( ~ ! [SY274: $i] :
                        ~ ( ~ ( ~ ( in @ SY274 @ SY272 )
                              | ~ ( ~ ( in @ SY274 @ SV131 )
                                  | ~ ~ ( in @ SY274 @ SY271 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY274 @ SV131 )
                                    | ~ ~ ( in @ SY274 @ SY271 ) )
                              | ( in @ SY274 @ SY272 ) ) )
                  | ( SY272
                    = ( set_difference @ SV131 @ SY271 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[964]) ).

thf(1008,plain,
    ! [SV132: $i] :
      ( ( ! [SY275: $i,SY276: $i] :
            ( ~ ( subset @ SV132 @ SY275 )
            | ( in @ SY276 @ SV132 )
            | ( subset @ SV132 @ ( set_difference @ SY275 @ ( singleton @ SY276 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[965]) ).

thf(1009,plain,
    ! [SV133: $i] :
      ( ( ~ ( ~ ( ( SV133 != empty_set )
                | ! [SY277: $i] :
                    ~ ( in @ SY277 @ SV133 ) )
            | ~ ( ~ ! [SY278: $i] :
                      ~ ( in @ SY278 @ SV133 )
                | ( SV133 = empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[966]) ).

thf(1010,plain,
    ! [SV134: $i] :
      ( ( ! [SY279: $i] :
            ( ~ ( subset @ SV134 @ SY279 )
            | ( ( set_union2 @ SV134 @ SY279 )
              = SY279 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[967]) ).

thf(1011,plain,
    ! [SV135: $i] :
      ( ( ! [SY280: $i,SY281: $i] :
            ( ~ ~ ( ~ ( subset @ SV135 @ SY280 )
                  | ~ ( subset @ SY280 @ SY281 ) )
            | ( subset @ SV135 @ SY281 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[968]) ).

thf(1012,plain,
    ! [SV136: $i] :
      ( ( ! [SY282: $i] :
            ~ ( ~ ( ( SY282
                   != ( powerset @ SV136 ) )
                  | ! [SY283: $i] :
                      ~ ( ~ ( ~ ( in @ SY283 @ SY282 )
                            | ( subset @ SY283 @ SV136 ) )
                        | ~ ( ~ ( subset @ SY283 @ SV136 )
                            | ( in @ SY283 @ SY282 ) ) ) )
              | ~ ( ~ ! [SY284: $i] :
                        ~ ( ~ ( ~ ( in @ SY284 @ SY282 )
                              | ( subset @ SY284 @ SV136 ) )
                          | ~ ( ~ ( subset @ SY284 @ SV136 )
                              | ( in @ SY284 @ SY282 ) ) )
                  | ( SY282
                    = ( powerset @ SV136 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[969]) ).

thf(1013,plain,
    ! [SV137: $i] :
      ( ( ! [SY285: $i] :
            ~ ~ ( ~ ( disjoint @ ( singleton @ SV137 ) @ SY285 )
                | ~ ( in @ SV137 @ SY285 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[970]) ).

thf(1014,plain,
    ! [SV138: $i] :
      ( ( ! [SY286: $i] :
            ~ ( ~ ( ( SY286
                   != ( singleton @ SV138 ) )
                  | ! [SY287: $i] :
                      ~ ( ~ ( ~ ( in @ SY287 @ SY286 )
                            | ( SY287 = SV138 ) )
                        | ~ ( ( SY287 != SV138 )
                            | ( in @ SY287 @ SY286 ) ) ) )
              | ~ ( ~ ! [SY288: $i] :
                        ~ ( ~ ( ~ ( in @ SY288 @ SY286 )
                              | ( SY288 = SV138 ) )
                          | ~ ( ( SY288 != SV138 )
                              | ( in @ SY288 @ SY286 ) ) )
                  | ( SY286
                    = ( singleton @ SV138 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[971]) ).

thf(1015,plain,
    ! [SV139: $i] :
      ( ( ! [SY289: $i] :
            ( ~ ~ ( in @ SV139 @ SY289 )
            | ( disjoint @ ( singleton @ SV139 ) @ SY289 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[972]) ).

thf(1016,plain,
    ! [SV140: $i] :
      ( ( ! [SY290: $i,SY291: $i] :
            ( ( ( singleton @ SV140 )
             != ( unordered_pair @ SY290 @ SY291 ) )
            | ( SV140 = SY290 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[973]) ).

thf(1017,plain,
    ( ( ~ ( in @ sK1_A @ sK2_SY107 )
      | ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[974]) ).

thf(1018,plain,
    ! [SV141: $i] :
      ( ( ! [SY292: $i] :
            ( ~ ( in @ SV141 @ SY292 )
            | ( ( set_union2 @ ( singleton @ SV141 ) @ SY292 )
              = SY292 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[975]) ).

thf(1019,plain,
    ! [SV142: $i] :
      ( ( ! [SY293: $i,SY294: $i] :
            ~ ( ~ ( ( SY294
                   != ( set_intersection2 @ SV142 @ SY293 ) )
                  | ! [SY295: $i] :
                      ~ ( ~ ( ~ ( in @ SY295 @ SY294 )
                            | ~ ( ~ ( in @ SY295 @ SV142 )
                                | ~ ( in @ SY295 @ SY293 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY295 @ SV142 )
                                  | ~ ( in @ SY295 @ SY293 ) )
                            | ( in @ SY295 @ SY294 ) ) ) )
              | ~ ( ~ ! [SY296: $i] :
                        ~ ( ~ ( ~ ( in @ SY296 @ SY294 )
                              | ~ ( ~ ( in @ SY296 @ SV142 )
                                  | ~ ( in @ SY296 @ SY293 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY296 @ SV142 )
                                    | ~ ( in @ SY296 @ SY293 ) )
                              | ( in @ SY296 @ SY294 ) ) )
                  | ( SY294
                    = ( set_intersection2 @ SV142 @ SY293 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[976]) ).

thf(1020,plain,
    ! [SV143: $i] :
      ( ( ! [SY297: $i,SY298: $i] :
            ( ~ ~ ( ~ ( subset @ SV143 @ SY297 )
                  | ~ ( disjoint @ SY297 @ SY298 ) )
            | ( disjoint @ SV143 @ SY298 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[977]) ).

thf(1021,plain,
    ! [SV144: $i] :
      ( ( ! [SY299: $i,SY300: $i] :
            ~ ( ~ ( ( SY300
                   != ( unordered_pair @ SV144 @ SY299 ) )
                  | ! [SY301: $i] :
                      ~ ( ~ ( ~ ( in @ SY301 @ SY300 )
                            | ( SY301 = SV144 )
                            | ( SY301 = SY299 ) )
                        | ~ ( ~ ( ( SY301 = SV144 )
                                | ( SY301 = SY299 ) )
                            | ( in @ SY301 @ SY300 ) ) ) )
              | ~ ( ~ ! [SY302: $i] :
                        ~ ( ~ ( ~ ( in @ SY302 @ SY300 )
                              | ( SY302 = SV144 )
                              | ( SY302 = SY299 ) )
                          | ~ ( ~ ( ( SY302 = SV144 )
                                  | ( SY302 = SY299 ) )
                              | ( in @ SY302 @ SY300 ) ) )
                  | ( SY300
                    = ( unordered_pair @ SV144 @ SY299 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[978]) ).

thf(1022,plain,
    ! [SV145: $i] :
      ( ( ! [SY303: $i,SY304: $i] :
            ( ~ ~ ( ~ ( subset @ SV145 @ SY303 )
                  | ~ ( subset @ SV145 @ SY304 ) )
            | ( subset @ SV145 @ ( set_intersection2 @ SY303 @ SY304 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[979]) ).

thf(1023,plain,
    ! [SV146: $i] :
      ( ( ! [SY305: $i] :
            ( ~ ( subset @ ( singleton @ SV146 ) @ ( singleton @ SY305 ) )
            | ( SV146 = SY305 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[980]) ).

thf(1024,plain,
    ! [SV147: $i,SV105: $i] :
      ( ( subset @ ( set_intersection2 @ SV105 @ SV147 ) @ SV105 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[981]) ).

thf(1025,plain,
    ! [SV148: $i,SV107: $i] :
      ( ( subset @ ( set_difference @ SV107 @ SV148 ) @ SV107 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[983]) ).

thf(1026,plain,
    ! [SV149: $i,SV109: $i] :
      ( ( subset @ SV109 @ ( set_union2 @ SV109 @ SV149 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[985]) ).

thf(1027,plain,
    ! [SV110: $i] :
      ( ( subset @ SV110 @ SV110 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[986]) ).

thf(1028,plain,
    ! [SV111: $i] :
      ( ( ( singleton @ SV111 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[987]) ).

thf(1029,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ~ ( ~ ( ( SV151
                 != ( union @ SV112 ) )
                | ! [SY306: $i] :
                    ~ ( ~ ( ~ ( in @ SY306 @ SV151 )
                          | ~ ! [SY237: $i] :
                                ~ ~ ( ~ ( in @ SY306 @ SY237 )
                                    | ~ ( in @ SY237 @ SV112 ) ) )
                      | ~ ( ~ ~ ! [SY238: $i] :
                                  ~ ~ ( ~ ( in @ SY306 @ SY238 )
                                      | ~ ( in @ SY238 @ SV112 ) )
                          | ( in @ SY306 @ SV151 ) ) ) )
            | ~ ( ~ ! [SY309: $i] :
                      ~ ( ~ ( ~ ( in @ SY309 @ SV151 )
                            | ~ ! [SY240: $i] :
                                  ~ ~ ( ~ ( in @ SY309 @ SY240 )
                                      | ~ ( in @ SY240 @ SV112 ) ) )
                        | ~ ( ~ ~ ! [SY241: $i] :
                                    ~ ~ ( ~ ( in @ SY309 @ SY241 )
                                        | ~ ( in @ SY241 @ SV112 ) )
                            | ( in @ SY309 @ SV151 ) ) )
                | ( SV151
                  = ( union @ SV112 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[988]) ).

thf(1030,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ ( singleton @ SV113 ) @ SV152 )
                | ( in @ SV113 @ SV152 ) )
            | ~ ( ~ ( in @ SV113 @ SV152 )
                | ( subset @ ( singleton @ SV113 ) @ SV152 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[989]) ).

thf(1031,plain,
    ! [SV153: $i,SV114: $i] :
      ( ( ! [SY312: $i] :
            ( ~ ~ ( ~ ( subset @ SV114 @ SV153 )
                  | ~ ( subset @ SY312 @ SV153 ) )
            | ( subset @ ( set_union2 @ SV114 @ SY312 ) @ SV153 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[990]) ).

thf(1032,plain,
    ! [SV154: $i,SV115: $i] :
      ( ( ~ ( subset @ SV115 @ SV154 )
        | ( ( set_intersection2 @ SV115 @ SV154 )
          = SV115 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[991]) ).

thf(1033,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV116 @ SV155 )
                | ! [SY313: $i] :
                    ( ~ ( in @ SY313 @ SV116 )
                    | ( in @ SY313 @ SV155 ) ) )
            | ~ ( ~ ! [SY314: $i] :
                      ( ~ ( in @ SY314 @ SV116 )
                      | ( in @ SY314 @ SV155 ) )
                | ( subset @ SV116 @ SV155 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[992]) ).

thf(1034,plain,
    ! [SV156: $i,SV117: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV117 @ SV156 )
              | ~ ( proper_subset @ SV156 @ SV117 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[993]) ).

thf(1035,plain,
    ! [SV157: $i,SV118: $i] :
      ( ( ! [SY315: $i] :
            ~ ( ~ ( ( SY315
                   != ( set_union2 @ SV118 @ SV157 ) )
                  | ! [SY316: $i] :
                      ~ ( ~ ( ~ ( in @ SY316 @ SY315 )
                            | ( in @ SY316 @ SV118 )
                            | ( in @ SY316 @ SV157 ) )
                        | ~ ( ~ ( ( in @ SY316 @ SV118 )
                                | ( in @ SY316 @ SV157 ) )
                            | ( in @ SY316 @ SY315 ) ) ) )
              | ~ ( ~ ! [SY317: $i] :
                        ~ ( ~ ( ~ ( in @ SY317 @ SY315 )
                              | ( in @ SY317 @ SV118 )
                              | ( in @ SY317 @ SV157 ) )
                          | ~ ( ~ ( ( in @ SY317 @ SV118 )
                                  | ( in @ SY317 @ SV157 ) )
                              | ( in @ SY317 @ SY315 ) ) )
                  | ( SY315
                    = ( set_union2 @ SV118 @ SV157 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[994]) ).

thf(1036,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ~ ( ~ ( ~ ( proper_subset @ SV119 @ SV158 )
                | ~ ( ~ ( subset @ SV119 @ SV158 )
                    | ~ ( ( SV119 != SV158 ) ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SV119 @ SV158 )
                      | ~ ( ( SV119 != SV158 ) ) )
                | ( proper_subset @ SV119 @ SV158 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[995]) ).

thf(1037,plain,
    ! [SV159: $i,SV120: $i] :
      ( ( ~ ~ ( ~ ( in @ SV120 @ SV159 )
              | ~ ( empty @ SV159 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[996]) ).

thf(1038,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV121 @ ( singleton @ SV160 ) )
                | ( SV121 = empty_set )
                | ( SV121
                  = ( singleton @ SV160 ) ) )
            | ~ ( ~ ( ( SV121 = empty_set )
                    | ( SV121
                      = ( singleton @ SV160 ) ) )
                | ( subset @ SV121 @ ( singleton @ SV160 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[997]) ).

thf(1039,plain,
    ! [SV161: $i,SV122: $i] :
      ( ( ~ ! [SY318: $i] :
              ~ ( ~ ( ~ ( in @ SY318 @ SV122 )
                    | ( in @ SY318 @ SV161 ) )
                | ~ ( ~ ( in @ SY318 @ SV161 )
                    | ( in @ SY318 @ SV122 ) ) )
        | ( SV122 = SV161 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[998]) ).

thf(1040,plain,
    ! [SV162: $i,SV123: $i] :
      ( ( ! [SY319: $i] :
            ( ( ( singleton @ SV123 )
             != ( unordered_pair @ SV162 @ SY319 ) )
            | ( SV162 = SY319 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[999]) ).

thf(1041,plain,
    ! [SV163: $i,SV124: $i] :
      ( ( ~ ( in @ SV124 @ SV163 )
        | ( subset @ SV124 @ ( union @ SV163 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1000]) ).

thf(1042,plain,
    ! [SV164: $i,SV125: $i] :
      ( ( ! [SY320: $i] :
            ( ~ ( subset @ SV125 @ SV164 )
            | ( subset @ ( set_difference @ SV125 @ SY320 ) @ ( set_difference @ SV164 @ SY320 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1001]) ).

thf(1043,plain,
    ! [SV165: $i,SV126: $i] :
      ( ( ~ ( in @ SV126 @ SV165 )
        | ~ ( in @ SV165 @ SV126 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1002]) ).

thf(1044,plain,
    ! [SV127: $i] :
      ( ( ( ~ ( subset @ SV127 @ empty_set ) )
        = $true )
      | ( ( SV127 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1003]) ).

thf(1045,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ~ ( ~ ( ( SV128 != SV166 )
                | ~ ( ~ ( subset @ SV128 @ SV166 )
                    | ~ ( subset @ SV166 @ SV128 ) ) )
            | ~ ( ~ ~ ( ~ ( subset @ SV128 @ SV166 )
                      | ~ ( subset @ SV166 @ SV128 ) )
                | ( SV128 = SV166 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1004]) ).

thf(1046,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV129 @ SV167 )
                    | ~ ! [SY321: $i] :
                          ~ ~ ( ~ ( in @ SY321 @ SV129 )
                              | ~ ( in @ SY321 @ SV167 ) ) )
            | ~ ~ ~ ( ~ ~ ! [SY322: $i] :
                            ~ ~ ( ~ ( in @ SY322 @ SV129 )
                                | ~ ( in @ SY322 @ SV167 ) )
                    | ~ ( disjoint @ SV129 @ SV167 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1005]) ).

thf(1047,plain,
    ! [SV168: $i,SV130: $i] :
      ( ( ! [SY323: $i] :
            ( ~ ( subset @ SV130 @ SV168 )
            | ( subset @ ( set_intersection2 @ SV130 @ SY323 ) @ ( set_intersection2 @ SV168 @ SY323 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1006]) ).

thf(1048,plain,
    ! [SV169: $i,SV131: $i] :
      ( ( ! [SY324: $i] :
            ~ ( ~ ( ( SY324
                   != ( set_difference @ SV131 @ SV169 ) )
                  | ! [SY325: $i] :
                      ~ ( ~ ( ~ ( in @ SY325 @ SY324 )
                            | ~ ( ~ ( in @ SY325 @ SV131 )
                                | ~ ~ ( in @ SY325 @ SV169 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY325 @ SV131 )
                                  | ~ ~ ( in @ SY325 @ SV169 ) )
                            | ( in @ SY325 @ SY324 ) ) ) )
              | ~ ( ~ ! [SY326: $i] :
                        ~ ( ~ ( ~ ( in @ SY326 @ SY324 )
                              | ~ ( ~ ( in @ SY326 @ SV131 )
                                  | ~ ~ ( in @ SY326 @ SV169 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY326 @ SV131 )
                                    | ~ ~ ( in @ SY326 @ SV169 ) )
                              | ( in @ SY326 @ SY324 ) ) )
                  | ( SY324
                    = ( set_difference @ SV131 @ SV169 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1007]) ).

thf(1049,plain,
    ! [SV170: $i,SV132: $i] :
      ( ( ! [SY327: $i] :
            ( ~ ( subset @ SV132 @ SV170 )
            | ( in @ SY327 @ SV132 )
            | ( subset @ SV132 @ ( set_difference @ SV170 @ ( singleton @ SY327 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1008]) ).

thf(1050,plain,
    ! [SV133: $i] :
      ( ( ~ ( ( SV133 != empty_set )
            | ! [SY277: $i] :
                ~ ( in @ SY277 @ SV133 ) )
        | ~ ( ~ ! [SY278: $i] :
                  ~ ( in @ SY278 @ SV133 )
            | ( SV133 = empty_set ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1009]) ).

thf(1051,plain,
    ! [SV171: $i,SV134: $i] :
      ( ( ~ ( subset @ SV134 @ SV171 )
        | ( ( set_union2 @ SV134 @ SV171 )
          = SV171 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1010]) ).

thf(1052,plain,
    ! [SV172: $i,SV135: $i] :
      ( ( ! [SY328: $i] :
            ( ~ ~ ( ~ ( subset @ SV135 @ SV172 )
                  | ~ ( subset @ SV172 @ SY328 ) )
            | ( subset @ SV135 @ SY328 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1011]) ).

thf(1053,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ~ ( ~ ( ( SV173
                 != ( powerset @ SV136 ) )
                | ! [SY329: $i] :
                    ~ ( ~ ( ~ ( in @ SY329 @ SV173 )
                          | ( subset @ SY329 @ SV136 ) )
                      | ~ ( ~ ( subset @ SY329 @ SV136 )
                          | ( in @ SY329 @ SV173 ) ) ) )
            | ~ ( ~ ! [SY330: $i] :
                      ~ ( ~ ( ~ ( in @ SY330 @ SV173 )
                            | ( subset @ SY330 @ SV136 ) )
                        | ~ ( ~ ( subset @ SY330 @ SV136 )
                            | ( in @ SY330 @ SV173 ) ) )
                | ( SV173
                  = ( powerset @ SV136 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1012]) ).

thf(1054,plain,
    ! [SV174: $i,SV137: $i] :
      ( ( ~ ~ ( ~ ( disjoint @ ( singleton @ SV137 ) @ SV174 )
              | ~ ( in @ SV137 @ SV174 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1013]) ).

thf(1055,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ~ ( ~ ( ( SV175
                 != ( singleton @ SV138 ) )
                | ! [SY331: $i] :
                    ~ ( ~ ( ~ ( in @ SY331 @ SV175 )
                          | ( SY331 = SV138 ) )
                      | ~ ( ( SY331 != SV138 )
                          | ( in @ SY331 @ SV175 ) ) ) )
            | ~ ( ~ ! [SY332: $i] :
                      ~ ( ~ ( ~ ( in @ SY332 @ SV175 )
                            | ( SY332 = SV138 ) )
                        | ~ ( ( SY332 != SV138 )
                            | ( in @ SY332 @ SV175 ) ) )
                | ( SV175
                  = ( singleton @ SV138 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1014]) ).

thf(1056,plain,
    ! [SV176: $i,SV139: $i] :
      ( ( ~ ~ ( in @ SV139 @ SV176 )
        | ( disjoint @ ( singleton @ SV139 ) @ SV176 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1015]) ).

thf(1057,plain,
    ! [SV177: $i,SV140: $i] :
      ( ( ! [SY333: $i] :
            ( ( ( singleton @ SV140 )
             != ( unordered_pair @ SV177 @ SY333 ) )
            | ( SV140 = SV177 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1016]) ).

thf(1058,plain,
    ( ( ~ ( in @ sK1_A @ sK2_SY107 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1017]) ).

thf(1059,plain,
    ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY107 )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1017]) ).

thf(1060,plain,
    ! [SV178: $i,SV141: $i] :
      ( ( ~ ( in @ SV141 @ SV178 )
        | ( ( set_union2 @ ( singleton @ SV141 ) @ SV178 )
          = SV178 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1018]) ).

thf(1061,plain,
    ! [SV179: $i,SV142: $i] :
      ( ( ! [SY334: $i] :
            ~ ( ~ ( ( SY334
                   != ( set_intersection2 @ SV142 @ SV179 ) )
                  | ! [SY335: $i] :
                      ~ ( ~ ( ~ ( in @ SY335 @ SY334 )
                            | ~ ( ~ ( in @ SY335 @ SV142 )
                                | ~ ( in @ SY335 @ SV179 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY335 @ SV142 )
                                  | ~ ( in @ SY335 @ SV179 ) )
                            | ( in @ SY335 @ SY334 ) ) ) )
              | ~ ( ~ ! [SY336: $i] :
                        ~ ( ~ ( ~ ( in @ SY336 @ SY334 )
                              | ~ ( ~ ( in @ SY336 @ SV142 )
                                  | ~ ( in @ SY336 @ SV179 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY336 @ SV142 )
                                    | ~ ( in @ SY336 @ SV179 ) )
                              | ( in @ SY336 @ SY334 ) ) )
                  | ( SY334
                    = ( set_intersection2 @ SV142 @ SV179 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1019]) ).

thf(1062,plain,
    ! [SV180: $i,SV143: $i] :
      ( ( ! [SY337: $i] :
            ( ~ ~ ( ~ ( subset @ SV143 @ SV180 )
                  | ~ ( disjoint @ SV180 @ SY337 ) )
            | ( disjoint @ SV143 @ SY337 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1020]) ).

thf(1063,plain,
    ! [SV181: $i,SV144: $i] :
      ( ( ! [SY338: $i] :
            ~ ( ~ ( ( SY338
                   != ( unordered_pair @ SV144 @ SV181 ) )
                  | ! [SY339: $i] :
                      ~ ( ~ ( ~ ( in @ SY339 @ SY338 )
                            | ( SY339 = SV144 )
                            | ( SY339 = SV181 ) )
                        | ~ ( ~ ( ( SY339 = SV144 )
                                | ( SY339 = SV181 ) )
                            | ( in @ SY339 @ SY338 ) ) ) )
              | ~ ( ~ ! [SY340: $i] :
                        ~ ( ~ ( ~ ( in @ SY340 @ SY338 )
                              | ( SY340 = SV144 )
                              | ( SY340 = SV181 ) )
                          | ~ ( ~ ( ( SY340 = SV144 )
                                  | ( SY340 = SV181 ) )
                              | ( in @ SY340 @ SY338 ) ) )
                  | ( SY338
                    = ( unordered_pair @ SV144 @ SV181 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1021]) ).

thf(1064,plain,
    ! [SV182: $i,SV145: $i] :
      ( ( ! [SY341: $i] :
            ( ~ ~ ( ~ ( subset @ SV145 @ SV182 )
                  | ~ ( subset @ SV145 @ SY341 ) )
            | ( subset @ SV145 @ ( set_intersection2 @ SV182 @ SY341 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1022]) ).

thf(1065,plain,
    ! [SV183: $i,SV146: $i] :
      ( ( ~ ( subset @ ( singleton @ SV146 ) @ ( singleton @ SV183 ) )
        | ( SV146 = SV183 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1023]) ).

thf(1066,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ~ ( ( SV151
             != ( union @ SV112 ) )
            | ! [SY306: $i] :
                ~ ( ~ ( ~ ( in @ SY306 @ SV151 )
                      | ~ ! [SY237: $i] :
                            ~ ~ ( ~ ( in @ SY306 @ SY237 )
                                | ~ ( in @ SY237 @ SV112 ) ) )
                  | ~ ( ~ ~ ! [SY238: $i] :
                              ~ ~ ( ~ ( in @ SY306 @ SY238 )
                                  | ~ ( in @ SY238 @ SV112 ) )
                      | ( in @ SY306 @ SV151 ) ) ) )
        | ~ ( ~ ! [SY309: $i] :
                  ~ ( ~ ( ~ ( in @ SY309 @ SV151 )
                        | ~ ! [SY240: $i] :
                              ~ ~ ( ~ ( in @ SY309 @ SY240 )
                                  | ~ ( in @ SY240 @ SV112 ) ) )
                    | ~ ( ~ ~ ! [SY241: $i] :
                                ~ ~ ( ~ ( in @ SY309 @ SY241 )
                                    | ~ ( in @ SY241 @ SV112 ) )
                        | ( in @ SY309 @ SV151 ) ) )
            | ( SV151
              = ( union @ SV112 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1029]) ).

thf(1067,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ~ ( ~ ( subset @ ( singleton @ SV113 ) @ SV152 )
            | ( in @ SV113 @ SV152 ) )
        | ~ ( ~ ( in @ SV113 @ SV152 )
            | ( subset @ ( singleton @ SV113 ) @ SV152 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1030]) ).

thf(1068,plain,
    ! [SV184: $i,SV153: $i,SV114: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV114 @ SV153 )
              | ~ ( subset @ SV184 @ SV153 ) )
        | ( subset @ ( set_union2 @ SV114 @ SV184 ) @ SV153 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1031]) ).

thf(1069,plain,
    ! [SV154: $i,SV115: $i] :
      ( ( ( ~ ( subset @ SV115 @ SV154 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV115 @ SV154 )
          = SV115 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1032]) ).

thf(1070,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ~ ( ~ ( subset @ SV116 @ SV155 )
            | ! [SY313: $i] :
                ( ~ ( in @ SY313 @ SV116 )
                | ( in @ SY313 @ SV155 ) ) )
        | ~ ( ~ ! [SY314: $i] :
                  ( ~ ( in @ SY314 @ SV116 )
                  | ( in @ SY314 @ SV155 ) )
            | ( subset @ SV116 @ SV155 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1033]) ).

thf(1071,plain,
    ! [SV156: $i,SV117: $i] :
      ( ( ~ ( ~ ( subset @ SV117 @ SV156 )
            | ~ ( proper_subset @ SV156 @ SV117 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1034]) ).

thf(1072,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ~ ( ~ ( ( SV185
                 != ( set_union2 @ SV118 @ SV157 ) )
                | ! [SY342: $i] :
                    ~ ( ~ ( ~ ( in @ SY342 @ SV185 )
                          | ( in @ SY342 @ SV118 )
                          | ( in @ SY342 @ SV157 ) )
                      | ~ ( ~ ( ( in @ SY342 @ SV118 )
                              | ( in @ SY342 @ SV157 ) )
                          | ( in @ SY342 @ SV185 ) ) ) )
            | ~ ( ~ ! [SY343: $i] :
                      ~ ( ~ ( ~ ( in @ SY343 @ SV185 )
                            | ( in @ SY343 @ SV118 )
                            | ( in @ SY343 @ SV157 ) )
                        | ~ ( ~ ( ( in @ SY343 @ SV118 )
                                | ( in @ SY343 @ SV157 ) )
                            | ( in @ SY343 @ SV185 ) ) )
                | ( SV185
                  = ( set_union2 @ SV118 @ SV157 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1035]) ).

thf(1073,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ~ ( ~ ( proper_subset @ SV119 @ SV158 )
            | ~ ( ~ ( subset @ SV119 @ SV158 )
                | ~ ( ( SV119 != SV158 ) ) ) )
        | ~ ( ~ ~ ( ~ ( subset @ SV119 @ SV158 )
                  | ~ ( ( SV119 != SV158 ) ) )
            | ( proper_subset @ SV119 @ SV158 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1036]) ).

thf(1074,plain,
    ! [SV159: $i,SV120: $i] :
      ( ( ~ ( ~ ( in @ SV120 @ SV159 )
            | ~ ( empty @ SV159 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1037]) ).

thf(1075,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ~ ( ~ ( subset @ SV121 @ ( singleton @ SV160 ) )
            | ( SV121 = empty_set )
            | ( SV121
              = ( singleton @ SV160 ) ) )
        | ~ ( ~ ( ( SV121 = empty_set )
                | ( SV121
                  = ( singleton @ SV160 ) ) )
            | ( subset @ SV121 @ ( singleton @ SV160 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1038]) ).

thf(1076,plain,
    ! [SV161: $i,SV122: $i] :
      ( ( ( ~ ! [SY318: $i] :
                ~ ( ~ ( ~ ( in @ SY318 @ SV122 )
                      | ( in @ SY318 @ SV161 ) )
                  | ~ ( ~ ( in @ SY318 @ SV161 )
                      | ( in @ SY318 @ SV122 ) ) ) )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1039]) ).

thf(1077,plain,
    ! [SV186: $i,SV162: $i,SV123: $i] :
      ( ( ( ( singleton @ SV123 )
         != ( unordered_pair @ SV162 @ SV186 ) )
        | ( SV162 = SV186 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1040]) ).

thf(1078,plain,
    ! [SV163: $i,SV124: $i] :
      ( ( ( ~ ( in @ SV124 @ SV163 ) )
        = $true )
      | ( ( subset @ SV124 @ ( union @ SV163 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1041]) ).

thf(1079,plain,
    ! [SV187: $i,SV164: $i,SV125: $i] :
      ( ( ~ ( subset @ SV125 @ SV164 )
        | ( subset @ ( set_difference @ SV125 @ SV187 ) @ ( set_difference @ SV164 @ SV187 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1042]) ).

thf(1080,plain,
    ! [SV165: $i,SV126: $i] :
      ( ( ( ~ ( in @ SV126 @ SV165 ) )
        = $true )
      | ( ( ~ ( in @ SV165 @ SV126 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1043]) ).

thf(1081,plain,
    ! [SV127: $i] :
      ( ( ( subset @ SV127 @ empty_set )
        = $false )
      | ( ( SV127 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1044]) ).

thf(1082,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ~ ( ( SV128 != SV166 )
            | ~ ( ~ ( subset @ SV128 @ SV166 )
                | ~ ( subset @ SV166 @ SV128 ) ) )
        | ~ ( ~ ~ ( ~ ( subset @ SV128 @ SV166 )
                  | ~ ( subset @ SV166 @ SV128 ) )
            | ( SV128 = SV166 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1045]) ).

thf(1083,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV129 @ SV167 )
                | ~ ! [SY321: $i] :
                      ~ ~ ( ~ ( in @ SY321 @ SV129 )
                          | ~ ( in @ SY321 @ SV167 ) ) )
        | ~ ~ ~ ( ~ ~ ! [SY322: $i] :
                        ~ ~ ( ~ ( in @ SY322 @ SV129 )
                            | ~ ( in @ SY322 @ SV167 ) )
                | ~ ( disjoint @ SV129 @ SV167 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1046]) ).

thf(1084,plain,
    ! [SV188: $i,SV168: $i,SV130: $i] :
      ( ( ~ ( subset @ SV130 @ SV168 )
        | ( subset @ ( set_intersection2 @ SV130 @ SV188 ) @ ( set_intersection2 @ SV168 @ SV188 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1047]) ).

thf(1085,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ~ ( ~ ( ( SV189
                 != ( set_difference @ SV131 @ SV169 ) )
                | ! [SY344: $i] :
                    ~ ( ~ ( ~ ( in @ SY344 @ SV189 )
                          | ~ ( ~ ( in @ SY344 @ SV131 )
                              | ~ ~ ( in @ SY344 @ SV169 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY344 @ SV131 )
                                | ~ ~ ( in @ SY344 @ SV169 ) )
                          | ( in @ SY344 @ SV189 ) ) ) )
            | ~ ( ~ ! [SY345: $i] :
                      ~ ( ~ ( ~ ( in @ SY345 @ SV189 )
                            | ~ ( ~ ( in @ SY345 @ SV131 )
                                | ~ ~ ( in @ SY345 @ SV169 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY345 @ SV131 )
                                  | ~ ~ ( in @ SY345 @ SV169 ) )
                            | ( in @ SY345 @ SV189 ) ) )
                | ( SV189
                  = ( set_difference @ SV131 @ SV169 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1048]) ).

thf(1086,plain,
    ! [SV190: $i,SV170: $i,SV132: $i] :
      ( ( ~ ( subset @ SV132 @ SV170 )
        | ( in @ SV190 @ SV132 )
        | ( subset @ SV132 @ ( set_difference @ SV170 @ ( singleton @ SV190 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1049]) ).

thf(1087,plain,
    ! [SV133: $i] :
      ( ( ~ ( ( SV133 != empty_set )
            | ! [SY277: $i] :
                ~ ( in @ SY277 @ SV133 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1050]) ).

thf(1088,plain,
    ! [SV133: $i] :
      ( ( ~ ( ~ ! [SY278: $i] :
                  ~ ( in @ SY278 @ SV133 )
            | ( SV133 = empty_set ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1050]) ).

thf(1089,plain,
    ! [SV171: $i,SV134: $i] :
      ( ( ( ~ ( subset @ SV134 @ SV171 ) )
        = $true )
      | ( ( ( set_union2 @ SV134 @ SV171 )
          = SV171 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1051]) ).

thf(1090,plain,
    ! [SV191: $i,SV172: $i,SV135: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV135 @ SV172 )
              | ~ ( subset @ SV172 @ SV191 ) )
        | ( subset @ SV135 @ SV191 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1052]) ).

thf(1091,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ~ ( ( SV173
             != ( powerset @ SV136 ) )
            | ! [SY329: $i] :
                ~ ( ~ ( ~ ( in @ SY329 @ SV173 )
                      | ( subset @ SY329 @ SV136 ) )
                  | ~ ( ~ ( subset @ SY329 @ SV136 )
                      | ( in @ SY329 @ SV173 ) ) ) )
        | ~ ( ~ ! [SY330: $i] :
                  ~ ( ~ ( ~ ( in @ SY330 @ SV173 )
                        | ( subset @ SY330 @ SV136 ) )
                    | ~ ( ~ ( subset @ SY330 @ SV136 )
                        | ( in @ SY330 @ SV173 ) ) )
            | ( SV173
              = ( powerset @ SV136 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1053]) ).

thf(1092,plain,
    ! [SV174: $i,SV137: $i] :
      ( ( ~ ( ~ ( disjoint @ ( singleton @ SV137 ) @ SV174 )
            | ~ ( in @ SV137 @ SV174 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1054]) ).

thf(1093,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ~ ( ( SV175
             != ( singleton @ SV138 ) )
            | ! [SY331: $i] :
                ~ ( ~ ( ~ ( in @ SY331 @ SV175 )
                      | ( SY331 = SV138 ) )
                  | ~ ( ( SY331 != SV138 )
                      | ( in @ SY331 @ SV175 ) ) ) )
        | ~ ( ~ ! [SY332: $i] :
                  ~ ( ~ ( ~ ( in @ SY332 @ SV175 )
                        | ( SY332 = SV138 ) )
                    | ~ ( ( SY332 != SV138 )
                        | ( in @ SY332 @ SV175 ) ) )
            | ( SV175
              = ( singleton @ SV138 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1055]) ).

thf(1094,plain,
    ! [SV176: $i,SV139: $i] :
      ( ( ( ~ ~ ( in @ SV139 @ SV176 ) )
        = $true )
      | ( ( disjoint @ ( singleton @ SV139 ) @ SV176 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1056]) ).

thf(1095,plain,
    ! [SV192: $i,SV177: $i,SV140: $i] :
      ( ( ( ( singleton @ SV140 )
         != ( unordered_pair @ SV177 @ SV192 ) )
        | ( SV140 = SV177 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1057]) ).

thf(1096,plain,
    ( ( in @ sK1_A @ sK2_SY107 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1058]) ).

thf(1097,plain,
    ! [SV178: $i,SV141: $i] :
      ( ( ( ~ ( in @ SV141 @ SV178 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV141 ) @ SV178 )
          = SV178 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1060]) ).

thf(1098,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ~ ( ~ ( ( SV193
                 != ( set_intersection2 @ SV142 @ SV179 ) )
                | ! [SY346: $i] :
                    ~ ( ~ ( ~ ( in @ SY346 @ SV193 )
                          | ~ ( ~ ( in @ SY346 @ SV142 )
                              | ~ ( in @ SY346 @ SV179 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY346 @ SV142 )
                                | ~ ( in @ SY346 @ SV179 ) )
                          | ( in @ SY346 @ SV193 ) ) ) )
            | ~ ( ~ ! [SY347: $i] :
                      ~ ( ~ ( ~ ( in @ SY347 @ SV193 )
                            | ~ ( ~ ( in @ SY347 @ SV142 )
                                | ~ ( in @ SY347 @ SV179 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY347 @ SV142 )
                                  | ~ ( in @ SY347 @ SV179 ) )
                            | ( in @ SY347 @ SV193 ) ) )
                | ( SV193
                  = ( set_intersection2 @ SV142 @ SV179 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1061]) ).

thf(1099,plain,
    ! [SV194: $i,SV180: $i,SV143: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV143 @ SV180 )
              | ~ ( disjoint @ SV180 @ SV194 ) )
        | ( disjoint @ SV143 @ SV194 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1062]) ).

thf(1100,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ~ ( ~ ( ( SV195
                 != ( unordered_pair @ SV144 @ SV181 ) )
                | ! [SY348: $i] :
                    ~ ( ~ ( ~ ( in @ SY348 @ SV195 )
                          | ( SY348 = SV144 )
                          | ( SY348 = SV181 ) )
                      | ~ ( ~ ( ( SY348 = SV144 )
                              | ( SY348 = SV181 ) )
                          | ( in @ SY348 @ SV195 ) ) ) )
            | ~ ( ~ ! [SY349: $i] :
                      ~ ( ~ ( ~ ( in @ SY349 @ SV195 )
                            | ( SY349 = SV144 )
                            | ( SY349 = SV181 ) )
                        | ~ ( ~ ( ( SY349 = SV144 )
                                | ( SY349 = SV181 ) )
                            | ( in @ SY349 @ SV195 ) ) )
                | ( SV195
                  = ( unordered_pair @ SV144 @ SV181 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1063]) ).

thf(1101,plain,
    ! [SV196: $i,SV182: $i,SV145: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV145 @ SV182 )
              | ~ ( subset @ SV145 @ SV196 ) )
        | ( subset @ SV145 @ ( set_intersection2 @ SV182 @ SV196 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1064]) ).

thf(1102,plain,
    ! [SV183: $i,SV146: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV146 ) @ ( singleton @ SV183 ) ) )
        = $true )
      | ( ( SV146 = SV183 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1065]) ).

thf(1103,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ~ ( ( SV151
             != ( union @ SV112 ) )
            | ! [SY306: $i] :
                ~ ( ~ ( ~ ( in @ SY306 @ SV151 )
                      | ~ ! [SY237: $i] :
                            ~ ~ ( ~ ( in @ SY306 @ SY237 )
                                | ~ ( in @ SY237 @ SV112 ) ) )
                  | ~ ( ~ ~ ! [SY238: $i] :
                              ~ ~ ( ~ ( in @ SY306 @ SY238 )
                                  | ~ ( in @ SY238 @ SV112 ) )
                      | ( in @ SY306 @ SV151 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1066]) ).

thf(1104,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ~ ( ~ ! [SY309: $i] :
                  ~ ( ~ ( ~ ( in @ SY309 @ SV151 )
                        | ~ ! [SY240: $i] :
                              ~ ~ ( ~ ( in @ SY309 @ SY240 )
                                  | ~ ( in @ SY240 @ SV112 ) ) )
                    | ~ ( ~ ~ ! [SY241: $i] :
                                ~ ~ ( ~ ( in @ SY309 @ SY241 )
                                    | ~ ( in @ SY241 @ SV112 ) )
                        | ( in @ SY309 @ SV151 ) ) )
            | ( SV151
              = ( union @ SV112 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1066]) ).

thf(1105,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ~ ( ~ ( subset @ ( singleton @ SV113 ) @ SV152 )
            | ( in @ SV113 @ SV152 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1067]) ).

thf(1106,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ~ ( ~ ( in @ SV113 @ SV152 )
            | ( subset @ ( singleton @ SV113 ) @ SV152 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1067]) ).

thf(1107,plain,
    ! [SV184: $i,SV153: $i,SV114: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV114 @ SV153 )
                | ~ ( subset @ SV184 @ SV153 ) ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV114 @ SV184 ) @ SV153 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1068]) ).

thf(1108,plain,
    ! [SV154: $i,SV115: $i] :
      ( ( ( subset @ SV115 @ SV154 )
        = $false )
      | ( ( ( set_intersection2 @ SV115 @ SV154 )
          = SV115 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1069]) ).

thf(1109,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ~ ( ~ ( subset @ SV116 @ SV155 )
            | ! [SY313: $i] :
                ( ~ ( in @ SY313 @ SV116 )
                | ( in @ SY313 @ SV155 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1070]) ).

thf(1110,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ~ ( ~ ! [SY314: $i] :
                  ( ~ ( in @ SY314 @ SV116 )
                  | ( in @ SY314 @ SV155 ) )
            | ( subset @ SV116 @ SV155 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1070]) ).

thf(1111,plain,
    ! [SV156: $i,SV117: $i] :
      ( ( ~ ( subset @ SV117 @ SV156 )
        | ~ ( proper_subset @ SV156 @ SV117 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1071]) ).

thf(1112,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ~ ( ( SV185
             != ( set_union2 @ SV118 @ SV157 ) )
            | ! [SY342: $i] :
                ~ ( ~ ( ~ ( in @ SY342 @ SV185 )
                      | ( in @ SY342 @ SV118 )
                      | ( in @ SY342 @ SV157 ) )
                  | ~ ( ~ ( ( in @ SY342 @ SV118 )
                          | ( in @ SY342 @ SV157 ) )
                      | ( in @ SY342 @ SV185 ) ) ) )
        | ~ ( ~ ! [SY343: $i] :
                  ~ ( ~ ( ~ ( in @ SY343 @ SV185 )
                        | ( in @ SY343 @ SV118 )
                        | ( in @ SY343 @ SV157 ) )
                    | ~ ( ~ ( ( in @ SY343 @ SV118 )
                            | ( in @ SY343 @ SV157 ) )
                        | ( in @ SY343 @ SV185 ) ) )
            | ( SV185
              = ( set_union2 @ SV118 @ SV157 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1072]) ).

thf(1113,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ~ ( ~ ( proper_subset @ SV119 @ SV158 )
            | ~ ( ~ ( subset @ SV119 @ SV158 )
                | ~ ( ( SV119 != SV158 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1073]) ).

thf(1114,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ~ ( ~ ~ ( ~ ( subset @ SV119 @ SV158 )
                  | ~ ( ( SV119 != SV158 ) ) )
            | ( proper_subset @ SV119 @ SV158 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1073]) ).

thf(1115,plain,
    ! [SV159: $i,SV120: $i] :
      ( ( ~ ( in @ SV120 @ SV159 )
        | ~ ( empty @ SV159 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1074]) ).

thf(1116,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ~ ( ~ ( subset @ SV121 @ ( singleton @ SV160 ) )
            | ( SV121 = empty_set )
            | ( SV121
              = ( singleton @ SV160 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1075]) ).

thf(1117,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ~ ( ~ ( ( SV121 = empty_set )
                | ( SV121
                  = ( singleton @ SV160 ) ) )
            | ( subset @ SV121 @ ( singleton @ SV160 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1075]) ).

thf(1118,plain,
    ! [SV161: $i,SV122: $i] :
      ( ( ( ! [SY318: $i] :
              ~ ( ~ ( ~ ( in @ SY318 @ SV122 )
                    | ( in @ SY318 @ SV161 ) )
                | ~ ( ~ ( in @ SY318 @ SV161 )
                    | ( in @ SY318 @ SV122 ) ) ) )
        = $false )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1076]) ).

thf(1119,plain,
    ! [SV186: $i,SV162: $i,SV123: $i] :
      ( ( ( ( singleton @ SV123 )
         != ( unordered_pair @ SV162 @ SV186 ) )
        = $true )
      | ( ( SV162 = SV186 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1077]) ).

thf(1120,plain,
    ! [SV163: $i,SV124: $i] :
      ( ( ( in @ SV124 @ SV163 )
        = $false )
      | ( ( subset @ SV124 @ ( union @ SV163 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1078]) ).

thf(1121,plain,
    ! [SV187: $i,SV164: $i,SV125: $i] :
      ( ( ( ~ ( subset @ SV125 @ SV164 ) )
        = $true )
      | ( ( subset @ ( set_difference @ SV125 @ SV187 ) @ ( set_difference @ SV164 @ SV187 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1079]) ).

thf(1122,plain,
    ! [SV165: $i,SV126: $i] :
      ( ( ( in @ SV126 @ SV165 )
        = $false )
      | ( ( ~ ( in @ SV165 @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1080]) ).

thf(1123,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ~ ( ( SV128 != SV166 )
            | ~ ( ~ ( subset @ SV128 @ SV166 )
                | ~ ( subset @ SV166 @ SV128 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1082]) ).

thf(1124,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ~ ( ~ ~ ( ~ ( subset @ SV128 @ SV166 )
                  | ~ ( subset @ SV166 @ SV128 ) )
            | ( SV128 = SV166 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1082]) ).

thf(1125,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV129 @ SV167 )
                | ~ ! [SY321: $i] :
                      ~ ~ ( ~ ( in @ SY321 @ SV129 )
                          | ~ ( in @ SY321 @ SV167 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1083]) ).

thf(1126,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ~ ~ ( ~ ~ ! [SY322: $i] :
                        ~ ~ ( ~ ( in @ SY322 @ SV129 )
                            | ~ ( in @ SY322 @ SV167 ) )
                | ~ ( disjoint @ SV129 @ SV167 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1083]) ).

thf(1127,plain,
    ! [SV188: $i,SV168: $i,SV130: $i] :
      ( ( ( ~ ( subset @ SV130 @ SV168 ) )
        = $true )
      | ( ( subset @ ( set_intersection2 @ SV130 @ SV188 ) @ ( set_intersection2 @ SV168 @ SV188 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1084]) ).

thf(1128,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ~ ( ( SV189
             != ( set_difference @ SV131 @ SV169 ) )
            | ! [SY344: $i] :
                ~ ( ~ ( ~ ( in @ SY344 @ SV189 )
                      | ~ ( ~ ( in @ SY344 @ SV131 )
                          | ~ ~ ( in @ SY344 @ SV169 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY344 @ SV131 )
                            | ~ ~ ( in @ SY344 @ SV169 ) )
                      | ( in @ SY344 @ SV189 ) ) ) )
        | ~ ( ~ ! [SY345: $i] :
                  ~ ( ~ ( ~ ( in @ SY345 @ SV189 )
                        | ~ ( ~ ( in @ SY345 @ SV131 )
                            | ~ ~ ( in @ SY345 @ SV169 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY345 @ SV131 )
                              | ~ ~ ( in @ SY345 @ SV169 ) )
                        | ( in @ SY345 @ SV189 ) ) )
            | ( SV189
              = ( set_difference @ SV131 @ SV169 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1085]) ).

thf(1129,plain,
    ! [SV190: $i,SV170: $i,SV132: $i] :
      ( ( ( ~ ( subset @ SV132 @ SV170 ) )
        = $true )
      | ( ( ( in @ SV190 @ SV132 )
          | ( subset @ SV132 @ ( set_difference @ SV170 @ ( singleton @ SV190 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1086]) ).

thf(1130,plain,
    ! [SV133: $i] :
      ( ( ( SV133 != empty_set )
        | ! [SY277: $i] :
            ~ ( in @ SY277 @ SV133 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1087]) ).

thf(1131,plain,
    ! [SV133: $i] :
      ( ( ~ ! [SY278: $i] :
              ~ ( in @ SY278 @ SV133 )
        | ( SV133 = empty_set ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1088]) ).

thf(1132,plain,
    ! [SV171: $i,SV134: $i] :
      ( ( ( subset @ SV134 @ SV171 )
        = $false )
      | ( ( ( set_union2 @ SV134 @ SV171 )
          = SV171 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1089]) ).

thf(1133,plain,
    ! [SV191: $i,SV172: $i,SV135: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV135 @ SV172 )
                | ~ ( subset @ SV172 @ SV191 ) ) )
        = $true )
      | ( ( subset @ SV135 @ SV191 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1090]) ).

thf(1134,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ~ ( ( SV173
             != ( powerset @ SV136 ) )
            | ! [SY329: $i] :
                ~ ( ~ ( ~ ( in @ SY329 @ SV173 )
                      | ( subset @ SY329 @ SV136 ) )
                  | ~ ( ~ ( subset @ SY329 @ SV136 )
                      | ( in @ SY329 @ SV173 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1091]) ).

thf(1135,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ~ ( ~ ! [SY330: $i] :
                  ~ ( ~ ( ~ ( in @ SY330 @ SV173 )
                        | ( subset @ SY330 @ SV136 ) )
                    | ~ ( ~ ( subset @ SY330 @ SV136 )
                        | ( in @ SY330 @ SV173 ) ) )
            | ( SV173
              = ( powerset @ SV136 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1091]) ).

thf(1136,plain,
    ! [SV174: $i,SV137: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV137 ) @ SV174 )
        | ~ ( in @ SV137 @ SV174 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1092]) ).

thf(1137,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ~ ( ( SV175
             != ( singleton @ SV138 ) )
            | ! [SY331: $i] :
                ~ ( ~ ( ~ ( in @ SY331 @ SV175 )
                      | ( SY331 = SV138 ) )
                  | ~ ( ( SY331 != SV138 )
                      | ( in @ SY331 @ SV175 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1093]) ).

thf(1138,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ~ ( ~ ! [SY332: $i] :
                  ~ ( ~ ( ~ ( in @ SY332 @ SV175 )
                        | ( SY332 = SV138 ) )
                    | ~ ( ( SY332 != SV138 )
                        | ( in @ SY332 @ SV175 ) ) )
            | ( SV175
              = ( singleton @ SV138 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1093]) ).

thf(1139,plain,
    ! [SV176: $i,SV139: $i] :
      ( ( ( ~ ( in @ SV139 @ SV176 ) )
        = $false )
      | ( ( disjoint @ ( singleton @ SV139 ) @ SV176 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1094]) ).

thf(1140,plain,
    ! [SV192: $i,SV177: $i,SV140: $i] :
      ( ( ( ( singleton @ SV140 )
         != ( unordered_pair @ SV177 @ SV192 ) )
        = $true )
      | ( ( SV140 = SV177 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1095]) ).

thf(1141,plain,
    ! [SV178: $i,SV141: $i] :
      ( ( ( in @ SV141 @ SV178 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV141 ) @ SV178 )
          = SV178 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1097]) ).

thf(1142,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ~ ( ( SV193
             != ( set_intersection2 @ SV142 @ SV179 ) )
            | ! [SY346: $i] :
                ~ ( ~ ( ~ ( in @ SY346 @ SV193 )
                      | ~ ( ~ ( in @ SY346 @ SV142 )
                          | ~ ( in @ SY346 @ SV179 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY346 @ SV142 )
                            | ~ ( in @ SY346 @ SV179 ) )
                      | ( in @ SY346 @ SV193 ) ) ) )
        | ~ ( ~ ! [SY347: $i] :
                  ~ ( ~ ( ~ ( in @ SY347 @ SV193 )
                        | ~ ( ~ ( in @ SY347 @ SV142 )
                            | ~ ( in @ SY347 @ SV179 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY347 @ SV142 )
                              | ~ ( in @ SY347 @ SV179 ) )
                        | ( in @ SY347 @ SV193 ) ) )
            | ( SV193
              = ( set_intersection2 @ SV142 @ SV179 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1098]) ).

thf(1143,plain,
    ! [SV194: $i,SV180: $i,SV143: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV143 @ SV180 )
                | ~ ( disjoint @ SV180 @ SV194 ) ) )
        = $true )
      | ( ( disjoint @ SV143 @ SV194 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1099]) ).

thf(1144,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ~ ( ( SV195
             != ( unordered_pair @ SV144 @ SV181 ) )
            | ! [SY348: $i] :
                ~ ( ~ ( ~ ( in @ SY348 @ SV195 )
                      | ( SY348 = SV144 )
                      | ( SY348 = SV181 ) )
                  | ~ ( ~ ( ( SY348 = SV144 )
                          | ( SY348 = SV181 ) )
                      | ( in @ SY348 @ SV195 ) ) ) )
        | ~ ( ~ ! [SY349: $i] :
                  ~ ( ~ ( ~ ( in @ SY349 @ SV195 )
                        | ( SY349 = SV144 )
                        | ( SY349 = SV181 ) )
                    | ~ ( ~ ( ( SY349 = SV144 )
                            | ( SY349 = SV181 ) )
                        | ( in @ SY349 @ SV195 ) ) )
            | ( SV195
              = ( unordered_pair @ SV144 @ SV181 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1100]) ).

thf(1145,plain,
    ! [SV196: $i,SV182: $i,SV145: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV145 @ SV182 )
                | ~ ( subset @ SV145 @ SV196 ) ) )
        = $true )
      | ( ( subset @ SV145 @ ( set_intersection2 @ SV182 @ SV196 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1101]) ).

thf(1146,plain,
    ! [SV183: $i,SV146: $i] :
      ( ( ( subset @ ( singleton @ SV146 ) @ ( singleton @ SV183 ) )
        = $false )
      | ( ( SV146 = SV183 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1102]) ).

thf(1147,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ( SV151
         != ( union @ SV112 ) )
        | ! [SY306: $i] :
            ~ ( ~ ( ~ ( in @ SY306 @ SV151 )
                  | ~ ! [SY237: $i] :
                        ~ ~ ( ~ ( in @ SY306 @ SY237 )
                            | ~ ( in @ SY237 @ SV112 ) ) )
              | ~ ( ~ ~ ! [SY238: $i] :
                          ~ ~ ( ~ ( in @ SY306 @ SY238 )
                              | ~ ( in @ SY238 @ SV112 ) )
                  | ( in @ SY306 @ SV151 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1103]) ).

thf(1148,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ~ ! [SY309: $i] :
              ~ ( ~ ( ~ ( in @ SY309 @ SV151 )
                    | ~ ! [SY240: $i] :
                          ~ ~ ( ~ ( in @ SY309 @ SY240 )
                              | ~ ( in @ SY240 @ SV112 ) ) )
                | ~ ( ~ ~ ! [SY241: $i] :
                            ~ ~ ( ~ ( in @ SY309 @ SY241 )
                                | ~ ( in @ SY241 @ SV112 ) )
                    | ( in @ SY309 @ SV151 ) ) )
        | ( SV151
          = ( union @ SV112 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1104]) ).

thf(1149,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ~ ( subset @ ( singleton @ SV113 ) @ SV152 )
        | ( in @ SV113 @ SV152 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1105]) ).

thf(1150,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ~ ( in @ SV113 @ SV152 )
        | ( subset @ ( singleton @ SV113 ) @ SV152 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1106]) ).

thf(1151,plain,
    ! [SV184: $i,SV153: $i,SV114: $i] :
      ( ( ( ~ ( ~ ( subset @ SV114 @ SV153 )
              | ~ ( subset @ SV184 @ SV153 ) ) )
        = $false )
      | ( ( subset @ ( set_union2 @ SV114 @ SV184 ) @ SV153 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1107]) ).

thf(1152,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ~ ( subset @ SV116 @ SV155 )
        | ! [SY313: $i] :
            ( ~ ( in @ SY313 @ SV116 )
            | ( in @ SY313 @ SV155 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1109]) ).

thf(1153,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ~ ! [SY314: $i] :
              ( ~ ( in @ SY314 @ SV116 )
              | ( in @ SY314 @ SV155 ) )
        | ( subset @ SV116 @ SV155 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1110]) ).

thf(1154,plain,
    ! [SV156: $i,SV117: $i] :
      ( ( ( ~ ( subset @ SV117 @ SV156 ) )
        = $true )
      | ( ( ~ ( proper_subset @ SV156 @ SV117 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1111]) ).

thf(1155,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ~ ( ( SV185
             != ( set_union2 @ SV118 @ SV157 ) )
            | ! [SY342: $i] :
                ~ ( ~ ( ~ ( in @ SY342 @ SV185 )
                      | ( in @ SY342 @ SV118 )
                      | ( in @ SY342 @ SV157 ) )
                  | ~ ( ~ ( ( in @ SY342 @ SV118 )
                          | ( in @ SY342 @ SV157 ) )
                      | ( in @ SY342 @ SV185 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1112]) ).

thf(1156,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ~ ( ~ ! [SY343: $i] :
                  ~ ( ~ ( ~ ( in @ SY343 @ SV185 )
                        | ( in @ SY343 @ SV118 )
                        | ( in @ SY343 @ SV157 ) )
                    | ~ ( ~ ( ( in @ SY343 @ SV118 )
                            | ( in @ SY343 @ SV157 ) )
                        | ( in @ SY343 @ SV185 ) ) )
            | ( SV185
              = ( set_union2 @ SV118 @ SV157 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1112]) ).

thf(1157,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ~ ( proper_subset @ SV119 @ SV158 )
        | ~ ( ~ ( subset @ SV119 @ SV158 )
            | ~ ( ( SV119 != SV158 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1113]) ).

thf(1158,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV119 @ SV158 )
              | ~ ( ( SV119 != SV158 ) ) )
        | ( proper_subset @ SV119 @ SV158 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1114]) ).

thf(1159,plain,
    ! [SV159: $i,SV120: $i] :
      ( ( ( ~ ( in @ SV120 @ SV159 ) )
        = $true )
      | ( ( ~ ( empty @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1115]) ).

thf(1160,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ~ ( subset @ SV121 @ ( singleton @ SV160 ) )
        | ( SV121 = empty_set )
        | ( SV121
          = ( singleton @ SV160 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1116]) ).

thf(1161,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ~ ( ( SV121 = empty_set )
            | ( SV121
              = ( singleton @ SV160 ) ) )
        | ( subset @ SV121 @ ( singleton @ SV160 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1117]) ).

thf(1162,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
                  | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 ) )
              | ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
                  | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) ) ) )
        = $false )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1118]) ).

thf(1163,plain,
    ! [SV186: $i,SV162: $i,SV123: $i] :
      ( ( ( ( singleton @ SV123 )
          = ( unordered_pair @ SV162 @ SV186 ) )
        = $false )
      | ( ( SV162 = SV186 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1119]) ).

thf(1164,plain,
    ! [SV187: $i,SV164: $i,SV125: $i] :
      ( ( ( subset @ SV125 @ SV164 )
        = $false )
      | ( ( subset @ ( set_difference @ SV125 @ SV187 ) @ ( set_difference @ SV164 @ SV187 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1121]) ).

thf(1165,plain,
    ! [SV126: $i,SV165: $i] :
      ( ( ( in @ SV165 @ SV126 )
        = $false )
      | ( ( in @ SV126 @ SV165 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1122]) ).

thf(1166,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( SV128 != SV166 )
        | ~ ( ~ ( subset @ SV128 @ SV166 )
            | ~ ( subset @ SV166 @ SV128 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1123]) ).

thf(1167,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ~ ~ ( ~ ( subset @ SV128 @ SV166 )
              | ~ ( subset @ SV166 @ SV128 ) )
        | ( SV128 = SV166 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1124]) ).

thf(1168,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ~ ( ~ ~ ( disjoint @ SV129 @ SV167 )
              | ~ ! [SY321: $i] :
                    ~ ~ ( ~ ( in @ SY321 @ SV129 )
                        | ~ ( in @ SY321 @ SV167 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1125]) ).

thf(1169,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ~ ( ~ ~ ! [SY322: $i] :
                      ~ ~ ( ~ ( in @ SY322 @ SV129 )
                          | ~ ( in @ SY322 @ SV167 ) )
              | ~ ( disjoint @ SV129 @ SV167 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1126]) ).

thf(1170,plain,
    ! [SV188: $i,SV168: $i,SV130: $i] :
      ( ( ( subset @ SV130 @ SV168 )
        = $false )
      | ( ( subset @ ( set_intersection2 @ SV130 @ SV188 ) @ ( set_intersection2 @ SV168 @ SV188 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1127]) ).

thf(1171,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ~ ( ( SV189
             != ( set_difference @ SV131 @ SV169 ) )
            | ! [SY344: $i] :
                ~ ( ~ ( ~ ( in @ SY344 @ SV189 )
                      | ~ ( ~ ( in @ SY344 @ SV131 )
                          | ~ ~ ( in @ SY344 @ SV169 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY344 @ SV131 )
                            | ~ ~ ( in @ SY344 @ SV169 ) )
                      | ( in @ SY344 @ SV189 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1128]) ).

thf(1172,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ~ ( ~ ! [SY345: $i] :
                  ~ ( ~ ( ~ ( in @ SY345 @ SV189 )
                        | ~ ( ~ ( in @ SY345 @ SV131 )
                            | ~ ~ ( in @ SY345 @ SV169 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY345 @ SV131 )
                              | ~ ~ ( in @ SY345 @ SV169 ) )
                        | ( in @ SY345 @ SV189 ) ) )
            | ( SV189
              = ( set_difference @ SV131 @ SV169 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1128]) ).

thf(1173,plain,
    ! [SV190: $i,SV170: $i,SV132: $i] :
      ( ( ( subset @ SV132 @ SV170 )
        = $false )
      | ( ( ( in @ SV190 @ SV132 )
          | ( subset @ SV132 @ ( set_difference @ SV170 @ ( singleton @ SV190 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1129]) ).

thf(1174,plain,
    ! [SV133: $i] :
      ( ( ( SV133 != empty_set )
        = $true )
      | ( ( ! [SY277: $i] :
              ~ ( in @ SY277 @ SV133 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1130]) ).

thf(1175,plain,
    ! [SV133: $i] :
      ( ( ( ~ ! [SY278: $i] :
                ~ ( in @ SY278 @ SV133 ) )
        = $true )
      | ( ( SV133 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1131]) ).

thf(1176,plain,
    ! [SV191: $i,SV172: $i,SV135: $i] :
      ( ( ( ~ ( ~ ( subset @ SV135 @ SV172 )
              | ~ ( subset @ SV172 @ SV191 ) ) )
        = $false )
      | ( ( subset @ SV135 @ SV191 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1133]) ).

thf(1177,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ( SV173
         != ( powerset @ SV136 ) )
        | ! [SY329: $i] :
            ~ ( ~ ( ~ ( in @ SY329 @ SV173 )
                  | ( subset @ SY329 @ SV136 ) )
              | ~ ( ~ ( subset @ SY329 @ SV136 )
                  | ( in @ SY329 @ SV173 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1134]) ).

thf(1178,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ~ ! [SY330: $i] :
              ~ ( ~ ( ~ ( in @ SY330 @ SV173 )
                    | ( subset @ SY330 @ SV136 ) )
                | ~ ( ~ ( subset @ SY330 @ SV136 )
                    | ( in @ SY330 @ SV173 ) ) )
        | ( SV173
          = ( powerset @ SV136 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1135]) ).

thf(1179,plain,
    ! [SV174: $i,SV137: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV137 ) @ SV174 ) )
        = $true )
      | ( ( ~ ( in @ SV137 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1136]) ).

thf(1180,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ( SV175
         != ( singleton @ SV138 ) )
        | ! [SY331: $i] :
            ~ ( ~ ( ~ ( in @ SY331 @ SV175 )
                  | ( SY331 = SV138 ) )
              | ~ ( ( SY331 != SV138 )
                  | ( in @ SY331 @ SV175 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1137]) ).

thf(1181,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ~ ! [SY332: $i] :
              ~ ( ~ ( ~ ( in @ SY332 @ SV175 )
                    | ( SY332 = SV138 ) )
                | ~ ( ( SY332 != SV138 )
                    | ( in @ SY332 @ SV175 ) ) )
        | ( SV175
          = ( singleton @ SV138 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1138]) ).

thf(1182,plain,
    ! [SV176: $i,SV139: $i] :
      ( ( ( in @ SV139 @ SV176 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV139 ) @ SV176 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1139]) ).

thf(1183,plain,
    ! [SV192: $i,SV177: $i,SV140: $i] :
      ( ( ( ( singleton @ SV140 )
          = ( unordered_pair @ SV177 @ SV192 ) )
        = $false )
      | ( ( SV140 = SV177 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1140]) ).

thf(1184,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ~ ( ( SV193
             != ( set_intersection2 @ SV142 @ SV179 ) )
            | ! [SY346: $i] :
                ~ ( ~ ( ~ ( in @ SY346 @ SV193 )
                      | ~ ( ~ ( in @ SY346 @ SV142 )
                          | ~ ( in @ SY346 @ SV179 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY346 @ SV142 )
                            | ~ ( in @ SY346 @ SV179 ) )
                      | ( in @ SY346 @ SV193 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1142]) ).

thf(1185,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ~ ( ~ ! [SY347: $i] :
                  ~ ( ~ ( ~ ( in @ SY347 @ SV193 )
                        | ~ ( ~ ( in @ SY347 @ SV142 )
                            | ~ ( in @ SY347 @ SV179 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY347 @ SV142 )
                              | ~ ( in @ SY347 @ SV179 ) )
                        | ( in @ SY347 @ SV193 ) ) )
            | ( SV193
              = ( set_intersection2 @ SV142 @ SV179 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1142]) ).

thf(1186,plain,
    ! [SV194: $i,SV180: $i,SV143: $i] :
      ( ( ( ~ ( ~ ( subset @ SV143 @ SV180 )
              | ~ ( disjoint @ SV180 @ SV194 ) ) )
        = $false )
      | ( ( disjoint @ SV143 @ SV194 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1143]) ).

thf(1187,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ~ ( ( SV195
             != ( unordered_pair @ SV144 @ SV181 ) )
            | ! [SY348: $i] :
                ~ ( ~ ( ~ ( in @ SY348 @ SV195 )
                      | ( SY348 = SV144 )
                      | ( SY348 = SV181 ) )
                  | ~ ( ~ ( ( SY348 = SV144 )
                          | ( SY348 = SV181 ) )
                      | ( in @ SY348 @ SV195 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1144]) ).

thf(1188,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ~ ( ~ ! [SY349: $i] :
                  ~ ( ~ ( ~ ( in @ SY349 @ SV195 )
                        | ( SY349 = SV144 )
                        | ( SY349 = SV181 ) )
                    | ~ ( ~ ( ( SY349 = SV144 )
                            | ( SY349 = SV181 ) )
                        | ( in @ SY349 @ SV195 ) ) )
            | ( SV195
              = ( unordered_pair @ SV144 @ SV181 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1144]) ).

thf(1189,plain,
    ! [SV196: $i,SV182: $i,SV145: $i] :
      ( ( ( ~ ( ~ ( subset @ SV145 @ SV182 )
              | ~ ( subset @ SV145 @ SV196 ) ) )
        = $false )
      | ( ( subset @ SV145 @ ( set_intersection2 @ SV182 @ SV196 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1145]) ).

thf(1190,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ( SV151
         != ( union @ SV112 ) )
        = $true )
      | ( ( ! [SY306: $i] :
              ~ ( ~ ( ~ ( in @ SY306 @ SV151 )
                    | ~ ! [SY237: $i] :
                          ~ ~ ( ~ ( in @ SY306 @ SY237 )
                              | ~ ( in @ SY237 @ SV112 ) ) )
                | ~ ( ~ ~ ! [SY238: $i] :
                            ~ ~ ( ~ ( in @ SY306 @ SY238 )
                                | ~ ( in @ SY238 @ SV112 ) )
                    | ( in @ SY306 @ SV151 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1147]) ).

thf(1191,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ( ~ ! [SY309: $i] :
                ~ ( ~ ( ~ ( in @ SY309 @ SV151 )
                      | ~ ! [SY240: $i] :
                            ~ ~ ( ~ ( in @ SY309 @ SY240 )
                                | ~ ( in @ SY240 @ SV112 ) ) )
                  | ~ ( ~ ~ ! [SY241: $i] :
                              ~ ~ ( ~ ( in @ SY309 @ SY241 )
                                  | ~ ( in @ SY241 @ SV112 ) )
                      | ( in @ SY309 @ SV151 ) ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1148]) ).

thf(1192,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV113 ) @ SV152 ) )
        = $true )
      | ( ( in @ SV113 @ SV152 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1149]) ).

thf(1193,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ( ~ ( in @ SV113 @ SV152 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV113 ) @ SV152 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1150]) ).

thf(1194,plain,
    ! [SV184: $i,SV153: $i,SV114: $i] :
      ( ( ( ~ ( subset @ SV114 @ SV153 )
          | ~ ( subset @ SV184 @ SV153 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV114 @ SV184 ) @ SV153 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1151]) ).

thf(1195,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ( ~ ( subset @ SV116 @ SV155 ) )
        = $true )
      | ( ( ! [SY313: $i] :
              ( ~ ( in @ SY313 @ SV116 )
              | ( in @ SY313 @ SV155 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1152]) ).

thf(1196,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ( ~ ! [SY314: $i] :
                ( ~ ( in @ SY314 @ SV116 )
                | ( in @ SY314 @ SV155 ) ) )
        = $true )
      | ( ( subset @ SV116 @ SV155 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1153]) ).

thf(1197,plain,
    ! [SV156: $i,SV117: $i] :
      ( ( ( subset @ SV117 @ SV156 )
        = $false )
      | ( ( ~ ( proper_subset @ SV156 @ SV117 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1154]) ).

thf(1198,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ( SV185
         != ( set_union2 @ SV118 @ SV157 ) )
        | ! [SY342: $i] :
            ~ ( ~ ( ~ ( in @ SY342 @ SV185 )
                  | ( in @ SY342 @ SV118 )
                  | ( in @ SY342 @ SV157 ) )
              | ~ ( ~ ( ( in @ SY342 @ SV118 )
                      | ( in @ SY342 @ SV157 ) )
                  | ( in @ SY342 @ SV185 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1155]) ).

thf(1199,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ~ ! [SY343: $i] :
              ~ ( ~ ( ~ ( in @ SY343 @ SV185 )
                    | ( in @ SY343 @ SV118 )
                    | ( in @ SY343 @ SV157 ) )
                | ~ ( ~ ( ( in @ SY343 @ SV118 )
                        | ( in @ SY343 @ SV157 ) )
                    | ( in @ SY343 @ SV185 ) ) )
        | ( SV185
          = ( set_union2 @ SV118 @ SV157 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1156]) ).

thf(1200,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( ~ ( proper_subset @ SV119 @ SV158 ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ SV119 @ SV158 )
              | ~ ( ( SV119 != SV158 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1157]) ).

thf(1201,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV119 @ SV158 )
                | ~ ( ( SV119 != SV158 ) ) ) )
        = $true )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1158]) ).

thf(1202,plain,
    ! [SV159: $i,SV120: $i] :
      ( ( ( in @ SV120 @ SV159 )
        = $false )
      | ( ( ~ ( empty @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1159]) ).

thf(1203,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ( ~ ( subset @ SV121 @ ( singleton @ SV160 ) ) )
        = $true )
      | ( ( ( SV121 = empty_set )
          | ( SV121
            = ( singleton @ SV160 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1160]) ).

thf(1204,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ( ~ ( ( SV121 = empty_set )
              | ( SV121
                = ( singleton @ SV160 ) ) ) )
        = $true )
      | ( ( subset @ SV121 @ ( singleton @ SV160 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1161]) ).

thf(1205,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
              | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 ) )
          | ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
              | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) ) )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1162]) ).

thf(1206,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( SV128 != SV166 )
        = $true )
      | ( ( ~ ( ~ ( subset @ SV128 @ SV166 )
              | ~ ( subset @ SV166 @ SV128 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1166]) ).

thf(1207,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( ~ ~ ( ~ ( subset @ SV128 @ SV166 )
                | ~ ( subset @ SV166 @ SV128 ) ) )
        = $true )
      | ( ( SV128 = SV166 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1167]) ).

thf(1208,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ( ~ ~ ( disjoint @ SV129 @ SV167 )
            | ~ ! [SY321: $i] :
                  ~ ~ ( ~ ( in @ SY321 @ SV129 )
                      | ~ ( in @ SY321 @ SV167 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1168]) ).

thf(1209,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ( ~ ~ ! [SY322: $i] :
                    ~ ~ ( ~ ( in @ SY322 @ SV129 )
                        | ~ ( in @ SY322 @ SV167 ) )
            | ~ ( disjoint @ SV129 @ SV167 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1169]) ).

thf(1210,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ( SV189
         != ( set_difference @ SV131 @ SV169 ) )
        | ! [SY344: $i] :
            ~ ( ~ ( ~ ( in @ SY344 @ SV189 )
                  | ~ ( ~ ( in @ SY344 @ SV131 )
                      | ~ ~ ( in @ SY344 @ SV169 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY344 @ SV131 )
                        | ~ ~ ( in @ SY344 @ SV169 ) )
                  | ( in @ SY344 @ SV189 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1171]) ).

thf(1211,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ~ ! [SY345: $i] :
              ~ ( ~ ( ~ ( in @ SY345 @ SV189 )
                    | ~ ( ~ ( in @ SY345 @ SV131 )
                        | ~ ~ ( in @ SY345 @ SV169 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY345 @ SV131 )
                          | ~ ~ ( in @ SY345 @ SV169 ) )
                    | ( in @ SY345 @ SV189 ) ) )
        | ( SV189
          = ( set_difference @ SV131 @ SV169 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1172]) ).

thf(1212,plain,
    ! [SV170: $i,SV132: $i,SV190: $i] :
      ( ( ( in @ SV190 @ SV132 )
        = $true )
      | ( ( subset @ SV132 @ ( set_difference @ SV170 @ ( singleton @ SV190 ) ) )
        = $true )
      | ( ( subset @ SV132 @ SV170 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1173]) ).

thf(1213,plain,
    ! [SV133: $i] :
      ( ( ( SV133 = empty_set )
        = $false )
      | ( ( ! [SY277: $i] :
              ~ ( in @ SY277 @ SV133 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1174]) ).

thf(1214,plain,
    ! [SV133: $i] :
      ( ( ( ! [SY278: $i] :
              ~ ( in @ SY278 @ SV133 ) )
        = $false )
      | ( ( SV133 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1175]) ).

thf(1215,plain,
    ! [SV191: $i,SV172: $i,SV135: $i] :
      ( ( ( ~ ( subset @ SV135 @ SV172 )
          | ~ ( subset @ SV172 @ SV191 ) )
        = $true )
      | ( ( subset @ SV135 @ SV191 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1176]) ).

thf(1216,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ( SV173
         != ( powerset @ SV136 ) )
        = $true )
      | ( ( ! [SY329: $i] :
              ~ ( ~ ( ~ ( in @ SY329 @ SV173 )
                    | ( subset @ SY329 @ SV136 ) )
                | ~ ( ~ ( subset @ SY329 @ SV136 )
                    | ( in @ SY329 @ SV173 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1177]) ).

thf(1217,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ( ~ ! [SY330: $i] :
                ~ ( ~ ( ~ ( in @ SY330 @ SV173 )
                      | ( subset @ SY330 @ SV136 ) )
                  | ~ ( ~ ( subset @ SY330 @ SV136 )
                      | ( in @ SY330 @ SV173 ) ) ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1178]) ).

thf(1218,plain,
    ! [SV174: $i,SV137: $i] :
      ( ( ( disjoint @ ( singleton @ SV137 ) @ SV174 )
        = $false )
      | ( ( ~ ( in @ SV137 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1179]) ).

thf(1219,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ( SV175
         != ( singleton @ SV138 ) )
        = $true )
      | ( ( ! [SY331: $i] :
              ~ ( ~ ( ~ ( in @ SY331 @ SV175 )
                    | ( SY331 = SV138 ) )
                | ~ ( ( SY331 != SV138 )
                    | ( in @ SY331 @ SV175 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1180]) ).

thf(1220,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ( ~ ! [SY332: $i] :
                ~ ( ~ ( ~ ( in @ SY332 @ SV175 )
                      | ( SY332 = SV138 ) )
                  | ~ ( ( SY332 != SV138 )
                      | ( in @ SY332 @ SV175 ) ) ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1181]) ).

thf(1221,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ( SV193
         != ( set_intersection2 @ SV142 @ SV179 ) )
        | ! [SY346: $i] :
            ~ ( ~ ( ~ ( in @ SY346 @ SV193 )
                  | ~ ( ~ ( in @ SY346 @ SV142 )
                      | ~ ( in @ SY346 @ SV179 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY346 @ SV142 )
                        | ~ ( in @ SY346 @ SV179 ) )
                  | ( in @ SY346 @ SV193 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1184]) ).

thf(1222,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ~ ! [SY347: $i] :
              ~ ( ~ ( ~ ( in @ SY347 @ SV193 )
                    | ~ ( ~ ( in @ SY347 @ SV142 )
                        | ~ ( in @ SY347 @ SV179 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY347 @ SV142 )
                          | ~ ( in @ SY347 @ SV179 ) )
                    | ( in @ SY347 @ SV193 ) ) )
        | ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1185]) ).

thf(1223,plain,
    ! [SV194: $i,SV180: $i,SV143: $i] :
      ( ( ( ~ ( subset @ SV143 @ SV180 )
          | ~ ( disjoint @ SV180 @ SV194 ) )
        = $true )
      | ( ( disjoint @ SV143 @ SV194 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1186]) ).

thf(1224,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ( SV195
         != ( unordered_pair @ SV144 @ SV181 ) )
        | ! [SY348: $i] :
            ~ ( ~ ( ~ ( in @ SY348 @ SV195 )
                  | ( SY348 = SV144 )
                  | ( SY348 = SV181 ) )
              | ~ ( ~ ( ( SY348 = SV144 )
                      | ( SY348 = SV181 ) )
                  | ( in @ SY348 @ SV195 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1187]) ).

thf(1225,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ~ ! [SY349: $i] :
              ~ ( ~ ( ~ ( in @ SY349 @ SV195 )
                    | ( SY349 = SV144 )
                    | ( SY349 = SV181 ) )
                | ~ ( ~ ( ( SY349 = SV144 )
                        | ( SY349 = SV181 ) )
                    | ( in @ SY349 @ SV195 ) ) )
        | ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1188]) ).

thf(1226,plain,
    ! [SV196: $i,SV182: $i,SV145: $i] :
      ( ( ( ~ ( subset @ SV145 @ SV182 )
          | ~ ( subset @ SV145 @ SV196 ) )
        = $true )
      | ( ( subset @ SV145 @ ( set_intersection2 @ SV182 @ SV196 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1189]) ).

thf(1227,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ( SV151
          = ( union @ SV112 ) )
        = $false )
      | ( ( ! [SY306: $i] :
              ~ ( ~ ( ~ ( in @ SY306 @ SV151 )
                    | ~ ! [SY237: $i] :
                          ~ ~ ( ~ ( in @ SY306 @ SY237 )
                              | ~ ( in @ SY237 @ SV112 ) ) )
                | ~ ( ~ ~ ! [SY238: $i] :
                            ~ ~ ( ~ ( in @ SY306 @ SY238 )
                                | ~ ( in @ SY238 @ SV112 ) )
                    | ( in @ SY306 @ SV151 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1190]) ).

thf(1228,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ( ! [SY309: $i] :
              ~ ( ~ ( ~ ( in @ SY309 @ SV151 )
                    | ~ ! [SY240: $i] :
                          ~ ~ ( ~ ( in @ SY309 @ SY240 )
                              | ~ ( in @ SY240 @ SV112 ) ) )
                | ~ ( ~ ~ ! [SY241: $i] :
                            ~ ~ ( ~ ( in @ SY309 @ SY241 )
                                | ~ ( in @ SY241 @ SV112 ) )
                    | ( in @ SY309 @ SV151 ) ) ) )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1191]) ).

thf(1229,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ( subset @ ( singleton @ SV113 ) @ SV152 )
        = $false )
      | ( ( in @ SV113 @ SV152 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1192]) ).

thf(1230,plain,
    ! [SV152: $i,SV113: $i] :
      ( ( ( in @ SV113 @ SV152 )
        = $false )
      | ( ( subset @ ( singleton @ SV113 ) @ SV152 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1193]) ).

thf(1231,plain,
    ! [SV184: $i,SV153: $i,SV114: $i] :
      ( ( ( ~ ( subset @ SV114 @ SV153 ) )
        = $true )
      | ( ( ~ ( subset @ SV184 @ SV153 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV114 @ SV184 ) @ SV153 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1194]) ).

thf(1232,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ( subset @ SV116 @ SV155 )
        = $false )
      | ( ( ! [SY313: $i] :
              ( ~ ( in @ SY313 @ SV116 )
              | ( in @ SY313 @ SV155 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1195]) ).

thf(1233,plain,
    ! [SV155: $i,SV116: $i] :
      ( ( ( ! [SY314: $i] :
              ( ~ ( in @ SY314 @ SV116 )
              | ( in @ SY314 @ SV155 ) ) )
        = $false )
      | ( ( subset @ SV116 @ SV155 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1196]) ).

thf(1234,plain,
    ! [SV117: $i,SV156: $i] :
      ( ( ( proper_subset @ SV156 @ SV117 )
        = $false )
      | ( ( subset @ SV117 @ SV156 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1197]) ).

thf(1235,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ( SV185
         != ( set_union2 @ SV118 @ SV157 ) )
        = $true )
      | ( ( ! [SY342: $i] :
              ~ ( ~ ( ~ ( in @ SY342 @ SV185 )
                    | ( in @ SY342 @ SV118 )
                    | ( in @ SY342 @ SV157 ) )
                | ~ ( ~ ( ( in @ SY342 @ SV118 )
                        | ( in @ SY342 @ SV157 ) )
                    | ( in @ SY342 @ SV185 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1198]) ).

thf(1236,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ( ~ ! [SY343: $i] :
                ~ ( ~ ( ~ ( in @ SY343 @ SV185 )
                      | ( in @ SY343 @ SV118 )
                      | ( in @ SY343 @ SV157 ) )
                  | ~ ( ~ ( ( in @ SY343 @ SV118 )
                          | ( in @ SY343 @ SV157 ) )
                      | ( in @ SY343 @ SV185 ) ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1199]) ).

thf(1237,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( proper_subset @ SV119 @ SV158 )
        = $false )
      | ( ( ~ ( ~ ( subset @ SV119 @ SV158 )
              | ~ ( ( SV119 != SV158 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1200]) ).

thf(1238,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( ~ ( ~ ( subset @ SV119 @ SV158 )
              | ~ ( ( SV119 != SV158 ) ) ) )
        = $false )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1201]) ).

thf(1239,plain,
    ! [SV120: $i,SV159: $i] :
      ( ( ( empty @ SV159 )
        = $false )
      | ( ( in @ SV120 @ SV159 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1202]) ).

thf(1240,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ( subset @ SV121 @ ( singleton @ SV160 ) )
        = $false )
      | ( ( ( SV121 = empty_set )
          | ( SV121
            = ( singleton @ SV160 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1203]) ).

thf(1241,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ( ( SV121 = empty_set )
          | ( SV121
            = ( singleton @ SV160 ) ) )
        = $false )
      | ( ( subset @ SV121 @ ( singleton @ SV160 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1204]) ).

thf(1242,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
              | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 ) ) )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
              | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) ) )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1205]) ).

thf(1243,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( SV128 = SV166 )
        = $false )
      | ( ( ~ ( ~ ( subset @ SV128 @ SV166 )
              | ~ ( subset @ SV166 @ SV128 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1206]) ).

thf(1244,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( subset @ SV128 @ SV166 )
              | ~ ( subset @ SV166 @ SV128 ) ) )
        = $false )
      | ( ( SV128 = SV166 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1207]) ).

thf(1245,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ~ ( disjoint @ SV129 @ SV167 )
        | ~ ! [SY321: $i] :
              ~ ~ ( ~ ( in @ SY321 @ SV129 )
                  | ~ ( in @ SY321 @ SV167 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1208]) ).

thf(1246,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ~ ~ ! [SY322: $i] :
                ~ ~ ( ~ ( in @ SY322 @ SV129 )
                    | ~ ( in @ SY322 @ SV167 ) )
        | ~ ( disjoint @ SV129 @ SV167 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1209]) ).

thf(1247,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ( SV189
         != ( set_difference @ SV131 @ SV169 ) )
        = $true )
      | ( ( ! [SY344: $i] :
              ~ ( ~ ( ~ ( in @ SY344 @ SV189 )
                    | ~ ( ~ ( in @ SY344 @ SV131 )
                        | ~ ~ ( in @ SY344 @ SV169 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY344 @ SV131 )
                          | ~ ~ ( in @ SY344 @ SV169 ) )
                    | ( in @ SY344 @ SV189 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1210]) ).

thf(1248,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ( ~ ! [SY345: $i] :
                ~ ( ~ ( ~ ( in @ SY345 @ SV189 )
                      | ~ ( ~ ( in @ SY345 @ SV131 )
                          | ~ ~ ( in @ SY345 @ SV169 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY345 @ SV131 )
                            | ~ ~ ( in @ SY345 @ SV169 ) )
                      | ( in @ SY345 @ SV189 ) ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1211]) ).

thf(1249,plain,
    ! [SV133: $i,SV197: $i] :
      ( ( ( ~ ( in @ SV197 @ SV133 ) )
        = $true )
      | ( ( SV133 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1213]) ).

thf(1250,plain,
    ! [SV133: $i] :
      ( ( ( ~ ( in @ ( sK18_SY278 @ SV133 ) @ SV133 ) )
        = $false )
      | ( ( SV133 = empty_set )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1214]) ).

thf(1251,plain,
    ! [SV191: $i,SV172: $i,SV135: $i] :
      ( ( ( ~ ( subset @ SV135 @ SV172 ) )
        = $true )
      | ( ( ~ ( subset @ SV172 @ SV191 ) )
        = $true )
      | ( ( subset @ SV135 @ SV191 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1215]) ).

thf(1252,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ( SV173
          = ( powerset @ SV136 ) )
        = $false )
      | ( ( ! [SY329: $i] :
              ~ ( ~ ( ~ ( in @ SY329 @ SV173 )
                    | ( subset @ SY329 @ SV136 ) )
                | ~ ( ~ ( subset @ SY329 @ SV136 )
                    | ( in @ SY329 @ SV173 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1216]) ).

thf(1253,plain,
    ! [SV136: $i,SV173: $i] :
      ( ( ( ! [SY330: $i] :
              ~ ( ~ ( ~ ( in @ SY330 @ SV173 )
                    | ( subset @ SY330 @ SV136 ) )
                | ~ ( ~ ( subset @ SY330 @ SV136 )
                    | ( in @ SY330 @ SV173 ) ) ) )
        = $false )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1217]) ).

thf(1254,plain,
    ! [SV174: $i,SV137: $i] :
      ( ( ( in @ SV137 @ SV174 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV137 ) @ SV174 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1218]) ).

thf(1255,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ( SV175
          = ( singleton @ SV138 ) )
        = $false )
      | ( ( ! [SY331: $i] :
              ~ ( ~ ( ~ ( in @ SY331 @ SV175 )
                    | ( SY331 = SV138 ) )
                | ~ ( ( SY331 != SV138 )
                    | ( in @ SY331 @ SV175 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1219]) ).

thf(1256,plain,
    ! [SV138: $i,SV175: $i] :
      ( ( ( ! [SY332: $i] :
              ~ ( ~ ( ~ ( in @ SY332 @ SV175 )
                    | ( SY332 = SV138 ) )
                | ~ ( ( SY332 != SV138 )
                    | ( in @ SY332 @ SV175 ) ) ) )
        = $false )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1220]) ).

thf(1257,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ( SV193
         != ( set_intersection2 @ SV142 @ SV179 ) )
        = $true )
      | ( ( ! [SY346: $i] :
              ~ ( ~ ( ~ ( in @ SY346 @ SV193 )
                    | ~ ( ~ ( in @ SY346 @ SV142 )
                        | ~ ( in @ SY346 @ SV179 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY346 @ SV142 )
                          | ~ ( in @ SY346 @ SV179 ) )
                    | ( in @ SY346 @ SV193 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1221]) ).

thf(1258,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ( ~ ! [SY347: $i] :
                ~ ( ~ ( ~ ( in @ SY347 @ SV193 )
                      | ~ ( ~ ( in @ SY347 @ SV142 )
                          | ~ ( in @ SY347 @ SV179 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY347 @ SV142 )
                            | ~ ( in @ SY347 @ SV179 ) )
                      | ( in @ SY347 @ SV193 ) ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1222]) ).

thf(1259,plain,
    ! [SV194: $i,SV180: $i,SV143: $i] :
      ( ( ( ~ ( subset @ SV143 @ SV180 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV180 @ SV194 ) )
        = $true )
      | ( ( disjoint @ SV143 @ SV194 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1223]) ).

thf(1260,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ( SV195
         != ( unordered_pair @ SV144 @ SV181 ) )
        = $true )
      | ( ( ! [SY348: $i] :
              ~ ( ~ ( ~ ( in @ SY348 @ SV195 )
                    | ( SY348 = SV144 )
                    | ( SY348 = SV181 ) )
                | ~ ( ~ ( ( SY348 = SV144 )
                        | ( SY348 = SV181 ) )
                    | ( in @ SY348 @ SV195 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1224]) ).

thf(1261,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ( ~ ! [SY349: $i] :
                ~ ( ~ ( ~ ( in @ SY349 @ SV195 )
                      | ( SY349 = SV144 )
                      | ( SY349 = SV181 ) )
                  | ~ ( ~ ( ( SY349 = SV144 )
                          | ( SY349 = SV181 ) )
                      | ( in @ SY349 @ SV195 ) ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1225]) ).

thf(1262,plain,
    ! [SV196: $i,SV182: $i,SV145: $i] :
      ( ( ( ~ ( subset @ SV145 @ SV182 ) )
        = $true )
      | ( ( ~ ( subset @ SV145 @ SV196 ) )
        = $true )
      | ( ( subset @ SV145 @ ( set_intersection2 @ SV182 @ SV196 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1226]) ).

thf(1263,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV198 @ SV151 )
                  | ~ ! [SY350: $i] :
                        ~ ~ ( ~ ( in @ SV198 @ SY350 )
                            | ~ ( in @ SY350 @ SV112 ) ) )
              | ~ ( ~ ~ ! [SY351: $i] :
                          ~ ~ ( ~ ( in @ SV198 @ SY351 )
                              | ~ ( in @ SY351 @ SV112 ) )
                  | ( in @ SV198 @ SV151 ) ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1227]) ).

thf(1264,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
                  | ~ ! [SY352: $i] :
                        ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY352 )
                            | ~ ( in @ SY352 @ SV112 ) ) )
              | ~ ( ~ ~ ! [SY353: $i] :
                          ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                              | ~ ( in @ SY353 @ SV112 ) )
                  | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) ) )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1228]) ).

thf(1265,plain,
    ! [SV184: $i,SV153: $i,SV114: $i] :
      ( ( ( subset @ SV114 @ SV153 )
        = $false )
      | ( ( ~ ( subset @ SV184 @ SV153 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV114 @ SV184 ) @ SV153 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1231]) ).

thf(1266,plain,
    ! [SV155: $i,SV116: $i,SV199: $i] :
      ( ( ( ~ ( in @ SV199 @ SV116 )
          | ( in @ SV199 @ SV155 ) )
        = $true )
      | ( ( subset @ SV116 @ SV155 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1232]) ).

thf(1267,plain,
    ! [SV116: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK20_SY314 @ SV155 @ SV116 ) @ SV116 )
          | ( in @ ( sK20_SY314 @ SV155 @ SV116 ) @ SV155 ) )
        = $false )
      | ( ( subset @ SV116 @ SV155 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1233]) ).

thf(1268,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false )
      | ( ( ! [SY342: $i] :
              ~ ( ~ ( ~ ( in @ SY342 @ SV185 )
                    | ( in @ SY342 @ SV118 )
                    | ( in @ SY342 @ SV157 ) )
                | ~ ( ~ ( ( in @ SY342 @ SV118 )
                        | ( in @ SY342 @ SV157 ) )
                    | ( in @ SY342 @ SV185 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1235]) ).

thf(1269,plain,
    ! [SV157: $i,SV118: $i,SV185: $i] :
      ( ( ( ! [SY343: $i] :
              ~ ( ~ ( ~ ( in @ SY343 @ SV185 )
                    | ( in @ SY343 @ SV118 )
                    | ( in @ SY343 @ SV157 ) )
                | ~ ( ~ ( ( in @ SY343 @ SV118 )
                        | ( in @ SY343 @ SV157 ) )
                    | ( in @ SY343 @ SV185 ) ) ) )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1236]) ).

thf(1270,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( ~ ( subset @ SV119 @ SV158 )
          | ~ ( ( SV119 != SV158 ) ) )
        = $false )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1237]) ).

thf(1271,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( ~ ( subset @ SV119 @ SV158 )
          | ~ ( ( SV119 != SV158 ) ) )
        = $true )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1238]) ).

thf(1272,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ( SV121 = empty_set )
        = $true )
      | ( ( SV121
          = ( singleton @ SV160 ) )
        = $true )
      | ( ( subset @ SV121 @ ( singleton @ SV160 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1240]) ).

thf(1273,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ( SV121 = empty_set )
        = $false )
      | ( ( subset @ SV121 @ ( singleton @ SV160 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1241]) ).

thf(1274,plain,
    ! [SV160: $i,SV121: $i] :
      ( ( ( SV121
          = ( singleton @ SV160 ) )
        = $false )
      | ( ( subset @ SV121 @ ( singleton @ SV160 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1241]) ).

thf(1275,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
          | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
              | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) ) )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1242]) ).

thf(1276,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( ~ ( subset @ SV128 @ SV166 )
          | ~ ( subset @ SV166 @ SV128 ) )
        = $false )
      | ( ( SV128 = SV166 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1243]) ).

thf(1277,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( ~ ( subset @ SV128 @ SV166 )
          | ~ ( subset @ SV166 @ SV128 ) )
        = $true )
      | ( ( SV128 = SV166 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1244]) ).

thf(1278,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ( ~ ~ ( disjoint @ SV129 @ SV167 ) )
        = $true )
      | ( ( ~ ! [SY321: $i] :
                ~ ~ ( ~ ( in @ SY321 @ SV129 )
                    | ~ ( in @ SY321 @ SV167 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1245]) ).

thf(1279,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ( ~ ~ ! [SY322: $i] :
                  ~ ~ ( ~ ( in @ SY322 @ SV129 )
                      | ~ ( in @ SY322 @ SV167 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1246]) ).

thf(1280,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false )
      | ( ( ! [SY344: $i] :
              ~ ( ~ ( ~ ( in @ SY344 @ SV189 )
                    | ~ ( ~ ( in @ SY344 @ SV131 )
                        | ~ ~ ( in @ SY344 @ SV169 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY344 @ SV131 )
                          | ~ ~ ( in @ SY344 @ SV169 ) )
                    | ( in @ SY344 @ SV189 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1247]) ).

thf(1281,plain,
    ! [SV169: $i,SV131: $i,SV189: $i] :
      ( ( ( ! [SY345: $i] :
              ~ ( ~ ( ~ ( in @ SY345 @ SV189 )
                    | ~ ( ~ ( in @ SY345 @ SV131 )
                        | ~ ~ ( in @ SY345 @ SV169 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY345 @ SV131 )
                          | ~ ~ ( in @ SY345 @ SV169 ) )
                    | ( in @ SY345 @ SV189 ) ) ) )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1248]) ).

thf(1282,plain,
    ! [SV133: $i,SV197: $i] :
      ( ( ( in @ SV197 @ SV133 )
        = $false )
      | ( ( SV133 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1249]) ).

thf(1283,plain,
    ! [SV133: $i] :
      ( ( ( in @ ( sK18_SY278 @ SV133 ) @ SV133 )
        = $true )
      | ( ( SV133 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1250]) ).

thf(1284,plain,
    ! [SV191: $i,SV172: $i,SV135: $i] :
      ( ( ( subset @ SV135 @ SV172 )
        = $false )
      | ( ( ~ ( subset @ SV172 @ SV191 ) )
        = $true )
      | ( ( subset @ SV135 @ SV191 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1251]) ).

thf(1285,plain,
    ! [SV136: $i,SV173: $i,SV200: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV200 @ SV173 )
                  | ( subset @ SV200 @ SV136 ) )
              | ~ ( ~ ( subset @ SV200 @ SV136 )
                  | ( in @ SV200 @ SV173 ) ) ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1252]) ).

thf(1286,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
                  | ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 ) )
              | ~ ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
                  | ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) ) ) )
        = $false )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1253]) ).

thf(1287,plain,
    ! [SV138: $i,SV175: $i,SV201: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV201 @ SV175 )
                  | ( SV201 = SV138 ) )
              | ~ ( ( SV201 != SV138 )
                  | ( in @ SV201 @ SV175 ) ) ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1255]) ).

thf(1288,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
                  | ( ( sK22_SY332 @ SV138 @ SV175 )
                    = SV138 ) )
              | ~ ( ( ( sK22_SY332 @ SV138 @ SV175 )
                   != SV138 )
                  | ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) ) ) )
        = $false )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1256]) ).

thf(1289,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false )
      | ( ( ! [SY346: $i] :
              ~ ( ~ ( ~ ( in @ SY346 @ SV193 )
                    | ~ ( ~ ( in @ SY346 @ SV142 )
                        | ~ ( in @ SY346 @ SV179 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY346 @ SV142 )
                          | ~ ( in @ SY346 @ SV179 ) )
                    | ( in @ SY346 @ SV193 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1257]) ).

thf(1290,plain,
    ! [SV179: $i,SV142: $i,SV193: $i] :
      ( ( ( ! [SY347: $i] :
              ~ ( ~ ( ~ ( in @ SY347 @ SV193 )
                    | ~ ( ~ ( in @ SY347 @ SV142 )
                        | ~ ( in @ SY347 @ SV179 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY347 @ SV142 )
                          | ~ ( in @ SY347 @ SV179 ) )
                    | ( in @ SY347 @ SV193 ) ) ) )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1258]) ).

thf(1291,plain,
    ! [SV194: $i,SV180: $i,SV143: $i] :
      ( ( ( subset @ SV143 @ SV180 )
        = $false )
      | ( ( ~ ( disjoint @ SV180 @ SV194 ) )
        = $true )
      | ( ( disjoint @ SV143 @ SV194 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1259]) ).

thf(1292,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false )
      | ( ( ! [SY348: $i] :
              ~ ( ~ ( ~ ( in @ SY348 @ SV195 )
                    | ( SY348 = SV144 )
                    | ( SY348 = SV181 ) )
                | ~ ( ~ ( ( SY348 = SV144 )
                        | ( SY348 = SV181 ) )
                    | ( in @ SY348 @ SV195 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1260]) ).

thf(1293,plain,
    ! [SV181: $i,SV144: $i,SV195: $i] :
      ( ( ( ! [SY349: $i] :
              ~ ( ~ ( ~ ( in @ SY349 @ SV195 )
                    | ( SY349 = SV144 )
                    | ( SY349 = SV181 ) )
                | ~ ( ~ ( ( SY349 = SV144 )
                        | ( SY349 = SV181 ) )
                    | ( in @ SY349 @ SV195 ) ) ) )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1261]) ).

thf(1294,plain,
    ! [SV196: $i,SV182: $i,SV145: $i] :
      ( ( ( subset @ SV145 @ SV182 )
        = $false )
      | ( ( ~ ( subset @ SV145 @ SV196 ) )
        = $true )
      | ( ( subset @ SV145 @ ( set_intersection2 @ SV182 @ SV196 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1262]) ).

thf(1295,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( ~ ( ~ ( in @ SV198 @ SV151 )
              | ~ ! [SY350: $i] :
                    ~ ~ ( ~ ( in @ SV198 @ SY350 )
                        | ~ ( in @ SY350 @ SV112 ) ) )
          | ~ ( ~ ~ ! [SY351: $i] :
                      ~ ~ ( ~ ( in @ SV198 @ SY351 )
                          | ~ ( in @ SY351 @ SV112 ) )
              | ( in @ SV198 @ SV151 ) ) )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1263]) ).

thf(1296,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
              | ~ ! [SY352: $i] :
                    ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY352 )
                        | ~ ( in @ SY352 @ SV112 ) ) )
          | ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1264]) ).

thf(1297,plain,
    ! [SV114: $i,SV153: $i,SV184: $i] :
      ( ( ( subset @ SV184 @ SV153 )
        = $false )
      | ( ( subset @ SV114 @ SV153 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV114 @ SV184 ) @ SV153 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1265]) ).

thf(1298,plain,
    ! [SV155: $i,SV116: $i,SV199: $i] :
      ( ( ( ~ ( in @ SV199 @ SV116 ) )
        = $true )
      | ( ( in @ SV199 @ SV155 )
        = $true )
      | ( ( subset @ SV116 @ SV155 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1266]) ).

thf(1299,plain,
    ! [SV116: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK20_SY314 @ SV155 @ SV116 ) @ SV116 ) )
        = $false )
      | ( ( subset @ SV116 @ SV155 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1267]) ).

thf(1300,plain,
    ! [SV116: $i,SV155: $i] :
      ( ( ( in @ ( sK20_SY314 @ SV155 @ SV116 ) @ SV155 )
        = $false )
      | ( ( subset @ SV116 @ SV155 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1267]) ).

thf(1301,plain,
    ! [SV157: $i,SV118: $i,SV185: $i,SV202: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV202 @ SV185 )
                  | ( in @ SV202 @ SV118 )
                  | ( in @ SV202 @ SV157 ) )
              | ~ ( ~ ( ( in @ SV202 @ SV118 )
                      | ( in @ SV202 @ SV157 ) )
                  | ( in @ SV202 @ SV185 ) ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1268]) ).

thf(1302,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
              | ~ ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                      | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) ) ) )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1269]) ).

thf(1303,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( ~ ( subset @ SV119 @ SV158 ) )
        = $false )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1270]) ).

thf(1304,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( ~ ( ( SV119 != SV158 ) ) )
        = $false )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1270]) ).

thf(1305,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( ~ ( subset @ SV119 @ SV158 ) )
        = $true )
      | ( ( ~ ( ( SV119 != SV158 ) ) )
        = $true )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1271]) ).

thf(1306,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
              | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) ) )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1275]) ).

thf(1307,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
              | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) ) )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1275]) ).

thf(1308,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( ~ ( subset @ SV128 @ SV166 ) )
        = $false )
      | ( ( SV128 = SV166 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1276]) ).

thf(1309,plain,
    ! [SV128: $i,SV166: $i] :
      ( ( ( ~ ( subset @ SV166 @ SV128 ) )
        = $false )
      | ( ( SV128 = SV166 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1276]) ).

thf(1310,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( ~ ( subset @ SV128 @ SV166 ) )
        = $true )
      | ( ( ~ ( subset @ SV166 @ SV128 ) )
        = $true )
      | ( ( SV128 = SV166 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1277]) ).

thf(1311,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $false )
      | ( ( ~ ! [SY321: $i] :
                ~ ~ ( ~ ( in @ SY321 @ SV129 )
                    | ~ ( in @ SY321 @ SV167 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1278]) ).

thf(1312,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ( ~ ! [SY322: $i] :
                ~ ~ ( ~ ( in @ SY322 @ SV129 )
                    | ~ ( in @ SY322 @ SV167 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1279]) ).

thf(1313,plain,
    ! [SV169: $i,SV131: $i,SV189: $i,SV203: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV203 @ SV189 )
                  | ~ ( ~ ( in @ SV203 @ SV131 )
                      | ~ ~ ( in @ SV203 @ SV169 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV203 @ SV131 )
                        | ~ ~ ( in @ SV203 @ SV169 ) )
                  | ( in @ SV203 @ SV189 ) ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1280]) ).

thf(1314,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
                  | ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                      | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                        | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
                  | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) ) )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1281]) ).

thf(1315,plain,
    ! [SV135: $i,SV191: $i,SV172: $i] :
      ( ( ( subset @ SV172 @ SV191 )
        = $false )
      | ( ( subset @ SV135 @ SV172 )
        = $false )
      | ( ( subset @ SV135 @ SV191 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1284]) ).

thf(1316,plain,
    ! [SV136: $i,SV173: $i,SV200: $i] :
      ( ( ( ~ ( ~ ( in @ SV200 @ SV173 )
              | ( subset @ SV200 @ SV136 ) )
          | ~ ( ~ ( subset @ SV200 @ SV136 )
              | ( in @ SV200 @ SV173 ) ) )
        = $false )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1285]) ).

thf(1317,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
              | ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 ) )
          | ~ ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
              | ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1286]) ).

thf(1318,plain,
    ! [SV138: $i,SV175: $i,SV201: $i] :
      ( ( ( ~ ( ~ ( in @ SV201 @ SV175 )
              | ( SV201 = SV138 ) )
          | ~ ( ( SV201 != SV138 )
              | ( in @ SV201 @ SV175 ) ) )
        = $false )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1287]) ).

thf(1319,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
              | ( ( sK22_SY332 @ SV138 @ SV175 )
                = SV138 ) )
          | ~ ( ( ( sK22_SY332 @ SV138 @ SV175 )
               != SV138 )
              | ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1288]) ).

thf(1320,plain,
    ! [SV179: $i,SV142: $i,SV193: $i,SV204: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV204 @ SV193 )
                  | ~ ( ~ ( in @ SV204 @ SV142 )
                      | ~ ( in @ SV204 @ SV179 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV204 @ SV142 )
                        | ~ ( in @ SV204 @ SV179 ) )
                  | ( in @ SV204 @ SV193 ) ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1289]) ).

thf(1321,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
                  | ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                      | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                        | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
                  | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) ) )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1290]) ).

thf(1322,plain,
    ! [SV143: $i,SV194: $i,SV180: $i] :
      ( ( ( disjoint @ SV180 @ SV194 )
        = $false )
      | ( ( subset @ SV143 @ SV180 )
        = $false )
      | ( ( disjoint @ SV143 @ SV194 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1291]) ).

thf(1323,plain,
    ! [SV181: $i,SV144: $i,SV195: $i,SV205: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV205 @ SV195 )
                  | ( SV205 = SV144 )
                  | ( SV205 = SV181 ) )
              | ~ ( ~ ( ( SV205 = SV144 )
                      | ( SV205 = SV181 ) )
                  | ( in @ SV205 @ SV195 ) ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1292]) ).

thf(1324,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV144 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV181 ) )
              | ~ ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                        = SV144 )
                      | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                        = SV181 ) )
                  | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) ) ) )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1293]) ).

thf(1325,plain,
    ! [SV182: $i,SV196: $i,SV145: $i] :
      ( ( ( subset @ SV145 @ SV196 )
        = $false )
      | ( ( subset @ SV145 @ SV182 )
        = $false )
      | ( ( subset @ SV145 @ ( set_intersection2 @ SV182 @ SV196 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1294]) ).

thf(1326,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( ~ ( ~ ( in @ SV198 @ SV151 )
              | ~ ! [SY350: $i] :
                    ~ ~ ( ~ ( in @ SV198 @ SY350 )
                        | ~ ( in @ SY350 @ SV112 ) ) ) )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1295]) ).

thf(1327,plain,
    ! [SV151: $i,SV112: $i,SV198: $i] :
      ( ( ( ~ ( ~ ~ ! [SY351: $i] :
                      ~ ~ ( ~ ( in @ SV198 @ SY351 )
                          | ~ ( in @ SY351 @ SV112 ) )
              | ( in @ SV198 @ SV151 ) ) )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1295]) ).

thf(1328,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
              | ~ ! [SY352: $i] :
                    ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY352 )
                        | ~ ( in @ SY352 @ SV112 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1296]) ).

thf(1329,plain,
    ! [SV155: $i,SV116: $i,SV199: $i] :
      ( ( ( in @ SV199 @ SV116 )
        = $false )
      | ( ( in @ SV199 @ SV155 )
        = $true )
      | ( ( subset @ SV116 @ SV155 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1298]) ).

thf(1330,plain,
    ! [SV116: $i,SV155: $i] :
      ( ( ( in @ ( sK20_SY314 @ SV155 @ SV116 ) @ SV116 )
        = $true )
      | ( ( subset @ SV116 @ SV155 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1299]) ).

thf(1331,plain,
    ! [SV157: $i,SV118: $i,SV185: $i,SV202: $i] :
      ( ( ( ~ ( ~ ( in @ SV202 @ SV185 )
              | ( in @ SV202 @ SV118 )
              | ( in @ SV202 @ SV157 ) )
          | ~ ( ~ ( ( in @ SV202 @ SV118 )
                  | ( in @ SV202 @ SV157 ) )
              | ( in @ SV202 @ SV185 ) ) )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1301]) ).

thf(1332,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
          | ~ ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1302]) ).

thf(1333,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( subset @ SV119 @ SV158 )
        = $true )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1303]) ).

thf(1334,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( SV119 != SV158 )
        = $true )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1304]) ).

thf(1335,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( subset @ SV119 @ SV158 )
        = $false )
      | ( ( ~ ( ( SV119 != SV158 ) ) )
        = $true )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1305]) ).

thf(1336,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
              | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) ) )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1306]) ).

thf(1337,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
          | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) )
        = $false )
      | ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
        = $false )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1307]) ).

thf(1338,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( subset @ SV128 @ SV166 )
        = $true )
      | ( ( SV128 = SV166 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1308]) ).

thf(1339,plain,
    ! [SV128: $i,SV166: $i] :
      ( ( ( subset @ SV166 @ SV128 )
        = $true )
      | ( ( SV128 = SV166 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1309]) ).

thf(1340,plain,
    ! [SV166: $i,SV128: $i] :
      ( ( ( subset @ SV128 @ SV166 )
        = $false )
      | ( ( ~ ( subset @ SV166 @ SV128 ) )
        = $true )
      | ( ( SV128 = SV166 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1310]) ).

thf(1341,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ( disjoint @ SV129 @ SV167 )
        = $true )
      | ( ( ~ ! [SY321: $i] :
                ~ ~ ( ~ ( in @ SY321 @ SV129 )
                    | ~ ( in @ SY321 @ SV167 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1311]) ).

thf(1342,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ( ! [SY322: $i] :
              ~ ~ ( ~ ( in @ SY322 @ SV129 )
                  | ~ ( in @ SY322 @ SV167 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1312]) ).

thf(1343,plain,
    ! [SV169: $i,SV131: $i,SV189: $i,SV203: $i] :
      ( ( ( ~ ( ~ ( in @ SV203 @ SV189 )
              | ~ ( ~ ( in @ SV203 @ SV131 )
                  | ~ ~ ( in @ SV203 @ SV169 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV203 @ SV131 )
                    | ~ ~ ( in @ SV203 @ SV169 ) )
              | ( in @ SV203 @ SV189 ) ) )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1313]) ).

thf(1344,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
              | ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                  | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1314]) ).

thf(1345,plain,
    ! [SV136: $i,SV173: $i,SV200: $i] :
      ( ( ( ~ ( ~ ( in @ SV200 @ SV173 )
              | ( subset @ SV200 @ SV136 ) ) )
        = $false )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1316]) ).

thf(1346,plain,
    ! [SV173: $i,SV136: $i,SV200: $i] :
      ( ( ( ~ ( ~ ( subset @ SV200 @ SV136 )
              | ( in @ SV200 @ SV173 ) ) )
        = $false )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1316]) ).

thf(1347,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
              | ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 ) ) )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
              | ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1317]) ).

thf(1348,plain,
    ! [SV138: $i,SV175: $i,SV201: $i] :
      ( ( ( ~ ( ~ ( in @ SV201 @ SV175 )
              | ( SV201 = SV138 ) ) )
        = $false )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1318]) ).

thf(1349,plain,
    ! [SV175: $i,SV138: $i,SV201: $i] :
      ( ( ( ~ ( ( SV201 != SV138 )
              | ( in @ SV201 @ SV175 ) ) )
        = $false )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1318]) ).

thf(1350,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
              | ( ( sK22_SY332 @ SV138 @ SV175 )
                = SV138 ) ) )
        = $true )
      | ( ( ~ ( ( ( sK22_SY332 @ SV138 @ SV175 )
               != SV138 )
              | ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1319]) ).

thf(1351,plain,
    ! [SV179: $i,SV142: $i,SV193: $i,SV204: $i] :
      ( ( ( ~ ( ~ ( in @ SV204 @ SV193 )
              | ~ ( ~ ( in @ SV204 @ SV142 )
                  | ~ ( in @ SV204 @ SV179 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV204 @ SV142 )
                    | ~ ( in @ SV204 @ SV179 ) )
              | ( in @ SV204 @ SV193 ) ) )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1320]) ).

thf(1352,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
              | ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                  | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1321]) ).

thf(1353,plain,
    ! [SV181: $i,SV144: $i,SV195: $i,SV205: $i] :
      ( ( ( ~ ( ~ ( in @ SV205 @ SV195 )
              | ( SV205 = SV144 )
              | ( SV205 = SV181 ) )
          | ~ ( ~ ( ( SV205 = SV144 )
                  | ( SV205 = SV181 ) )
              | ( in @ SV205 @ SV195 ) ) )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1323]) ).

thf(1354,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV144 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV181 ) )
          | ~ ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV144 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV181 ) )
              | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1324]) ).

thf(1355,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( ~ ( in @ SV198 @ SV151 )
          | ~ ! [SY350: $i] :
                ~ ~ ( ~ ( in @ SV198 @ SY350 )
                    | ~ ( in @ SY350 @ SV112 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1326]) ).

thf(1356,plain,
    ! [SV151: $i,SV112: $i,SV198: $i] :
      ( ( ( ~ ~ ! [SY351: $i] :
                  ~ ~ ( ~ ( in @ SV198 @ SY351 )
                      | ~ ( in @ SY351 @ SV112 ) )
          | ( in @ SV198 @ SV151 ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1327]) ).

thf(1357,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
          | ~ ! [SY352: $i] :
                ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY352 )
                    | ~ ( in @ SY352 @ SV112 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1328]) ).

thf(1358,plain,
    ! [SV157: $i,SV118: $i,SV185: $i,SV202: $i] :
      ( ( ( ~ ( ~ ( in @ SV202 @ SV185 )
              | ( in @ SV202 @ SV118 )
              | ( in @ SV202 @ SV157 ) ) )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1331]) ).

thf(1359,plain,
    ! [SV185: $i,SV157: $i,SV118: $i,SV202: $i] :
      ( ( ( ~ ( ~ ( ( in @ SV202 @ SV118 )
                  | ( in @ SV202 @ SV157 ) )
              | ( in @ SV202 @ SV185 ) ) )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1331]) ).

thf(1360,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1332]) ).

thf(1361,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( SV119 = SV158 )
        = $false )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1334]) ).

thf(1362,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( SV119 != SV158 )
        = $false )
      | ( ( subset @ SV119 @ SV158 )
        = $false )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1335]) ).

thf(1363,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
          | ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 ) )
        = $false )
      | ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1336]) ).

thf(1364,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 ) )
        = $false )
      | ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
        = $false )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1337]) ).

thf(1365,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
        = $false )
      | ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
        = $false )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1337]) ).

thf(1366,plain,
    ! [SV128: $i,SV166: $i] :
      ( ( ( subset @ SV166 @ SV128 )
        = $false )
      | ( ( subset @ SV128 @ SV166 )
        = $false )
      | ( ( SV128 = SV166 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1340]) ).

thf(1367,plain,
    ! [SV167: $i,SV129: $i] :
      ( ( ( ! [SY321: $i] :
              ~ ~ ( ~ ( in @ SY321 @ SV129 )
                  | ~ ( in @ SY321 @ SV167 ) ) )
        = $false )
      | ( ( disjoint @ SV129 @ SV167 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1341]) ).

thf(1368,plain,
    ! [SV167: $i,SV129: $i,SV206: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV206 @ SV129 )
                | ~ ( in @ SV206 @ SV167 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1342]) ).

thf(1369,plain,
    ! [SV169: $i,SV131: $i,SV189: $i,SV203: $i] :
      ( ( ( ~ ( ~ ( in @ SV203 @ SV189 )
              | ~ ( ~ ( in @ SV203 @ SV131 )
                  | ~ ~ ( in @ SV203 @ SV169 ) ) ) )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1343]) ).

thf(1370,plain,
    ! [SV189: $i,SV169: $i,SV131: $i,SV203: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV203 @ SV131 )
                    | ~ ~ ( in @ SV203 @ SV169 ) )
              | ( in @ SV203 @ SV189 ) ) )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1343]) ).

thf(1371,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
              | ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                  | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1344]) ).

thf(1372,plain,
    ! [SV136: $i,SV173: $i,SV200: $i] :
      ( ( ( ~ ( in @ SV200 @ SV173 )
          | ( subset @ SV200 @ SV136 ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1345]) ).

thf(1373,plain,
    ! [SV173: $i,SV136: $i,SV200: $i] :
      ( ( ( ~ ( subset @ SV200 @ SV136 )
          | ( in @ SV200 @ SV173 ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1346]) ).

thf(1374,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( ~ ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
          | ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
              | ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1347]) ).

thf(1375,plain,
    ! [SV138: $i,SV175: $i,SV201: $i] :
      ( ( ( ~ ( in @ SV201 @ SV175 )
          | ( SV201 = SV138 ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1348]) ).

thf(1376,plain,
    ! [SV175: $i,SV138: $i,SV201: $i] :
      ( ( ( ( SV201 != SV138 )
          | ( in @ SV201 @ SV175 ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1349]) ).

thf(1377,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ~ ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
          | ( ( sK22_SY332 @ SV138 @ SV175 )
            = SV138 ) )
        = $false )
      | ( ( ~ ( ( ( sK22_SY332 @ SV138 @ SV175 )
               != SV138 )
              | ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1350]) ).

thf(1378,plain,
    ! [SV179: $i,SV142: $i,SV193: $i,SV204: $i] :
      ( ( ( ~ ( ~ ( in @ SV204 @ SV193 )
              | ~ ( ~ ( in @ SV204 @ SV142 )
                  | ~ ( in @ SV204 @ SV179 ) ) ) )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1351]) ).

thf(1379,plain,
    ! [SV193: $i,SV179: $i,SV142: $i,SV204: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV204 @ SV142 )
                    | ~ ( in @ SV204 @ SV179 ) )
              | ( in @ SV204 @ SV193 ) ) )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1351]) ).

thf(1380,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
              | ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                  | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1352]) ).

thf(1381,plain,
    ! [SV181: $i,SV144: $i,SV195: $i,SV205: $i] :
      ( ( ( ~ ( ~ ( in @ SV205 @ SV195 )
              | ( SV205 = SV144 )
              | ( SV205 = SV181 ) ) )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1353]) ).

thf(1382,plain,
    ! [SV195: $i,SV181: $i,SV144: $i,SV205: $i] :
      ( ( ( ~ ( ~ ( ( SV205 = SV144 )
                  | ( SV205 = SV181 ) )
              | ( in @ SV205 @ SV195 ) ) )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1353]) ).

thf(1383,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV144 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV181 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV144 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV181 ) )
              | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1354]) ).

thf(1384,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( ~ ( in @ SV198 @ SV151 ) )
        = $true )
      | ( ( ~ ! [SY350: $i] :
                ~ ~ ( ~ ( in @ SV198 @ SY350 )
                    | ~ ( in @ SY350 @ SV112 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1355]) ).

thf(1385,plain,
    ! [SV151: $i,SV112: $i,SV198: $i] :
      ( ( ( ~ ~ ! [SY351: $i] :
                  ~ ~ ( ~ ( in @ SV198 @ SY351 )
                      | ~ ( in @ SY351 @ SV112 ) ) )
        = $true )
      | ( ( in @ SV198 @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1356]) ).

thf(1386,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1357]) ).

thf(1387,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ! [SY352: $i] :
                ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY352 )
                    | ~ ( in @ SY352 @ SV112 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1357]) ).

thf(1388,plain,
    ! [SV157: $i,SV118: $i,SV185: $i,SV202: $i] :
      ( ( ( ~ ( in @ SV202 @ SV185 )
          | ( in @ SV202 @ SV118 )
          | ( in @ SV202 @ SV157 ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1358]) ).

thf(1389,plain,
    ! [SV185: $i,SV157: $i,SV118: $i,SV202: $i] :
      ( ( ( ~ ( ( in @ SV202 @ SV118 )
              | ( in @ SV202 @ SV157 ) )
          | ( in @ SV202 @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1359]) ).

thf(1390,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
          | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
          | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1360]) ).

thf(1391,plain,
    ! [SV158: $i,SV119: $i] :
      ( ( ( SV119 = SV158 )
        = $true )
      | ( ( subset @ SV119 @ SV158 )
        = $false )
      | ( ( proper_subset @ SV119 @ SV158 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1362]) ).

thf(1392,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( ~ ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 ) )
        = $false )
      | ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1363]) ).

thf(1393,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
        = $false )
      | ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1363]) ).

thf(1394,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
        = $true )
      | ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
        = $false )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1364]) ).

thf(1395,plain,
    ! [SV129: $i,SV167: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV129 )
                | ~ ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV167 ) ) )
        = $false )
      | ( ( disjoint @ SV129 @ SV167 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1367]) ).

thf(1396,plain,
    ! [SV167: $i,SV129: $i,SV206: $i] :
      ( ( ( ~ ( ~ ( in @ SV206 @ SV129 )
              | ~ ( in @ SV206 @ SV167 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1368]) ).

thf(1397,plain,
    ! [SV169: $i,SV131: $i,SV189: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV189 )
          | ~ ( ~ ( in @ SV203 @ SV131 )
              | ~ ~ ( in @ SV203 @ SV169 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1369]) ).

thf(1398,plain,
    ! [SV189: $i,SV169: $i,SV131: $i,SV203: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV203 @ SV131 )
                | ~ ~ ( in @ SV203 @ SV169 ) )
          | ( in @ SV203 @ SV189 ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1370]) ).

thf(1399,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
          | ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
              | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1371]) ).

thf(1400,plain,
    ! [SV136: $i,SV173: $i,SV200: $i] :
      ( ( ( ~ ( in @ SV200 @ SV173 ) )
        = $true )
      | ( ( subset @ SV200 @ SV136 )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1372]) ).

thf(1401,plain,
    ! [SV173: $i,SV136: $i,SV200: $i] :
      ( ( ( ~ ( subset @ SV200 @ SV136 ) )
        = $true )
      | ( ( in @ SV200 @ SV173 )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1373]) ).

thf(1402,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( ~ ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
              | ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1374]) ).

thf(1403,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
        = $false )
      | ( ( ~ ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
              | ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1374]) ).

thf(1404,plain,
    ! [SV138: $i,SV175: $i,SV201: $i] :
      ( ( ( ~ ( in @ SV201 @ SV175 ) )
        = $true )
      | ( ( SV201 = SV138 )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1375]) ).

thf(1405,plain,
    ! [SV175: $i,SV138: $i,SV201: $i] :
      ( ( ( SV201 != SV138 )
        = $true )
      | ( ( in @ SV201 @ SV175 )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1376]) ).

thf(1406,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ~ ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) )
        = $false )
      | ( ( ~ ( ( ( sK22_SY332 @ SV138 @ SV175 )
               != SV138 )
              | ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1377]) ).

thf(1407,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ( sK22_SY332 @ SV138 @ SV175 )
          = SV138 )
        = $false )
      | ( ( ~ ( ( ( sK22_SY332 @ SV138 @ SV175 )
               != SV138 )
              | ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1377]) ).

thf(1408,plain,
    ! [SV179: $i,SV142: $i,SV193: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV193 )
          | ~ ( ~ ( in @ SV204 @ SV142 )
              | ~ ( in @ SV204 @ SV179 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1378]) ).

thf(1409,plain,
    ! [SV193: $i,SV179: $i,SV142: $i,SV204: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV204 @ SV142 )
                | ~ ( in @ SV204 @ SV179 ) )
          | ( in @ SV204 @ SV193 ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1379]) ).

thf(1410,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
          | ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
              | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1380]) ).

thf(1411,plain,
    ! [SV181: $i,SV144: $i,SV195: $i,SV205: $i] :
      ( ( ( ~ ( in @ SV205 @ SV195 )
          | ( SV205 = SV144 )
          | ( SV205 = SV181 ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1381]) ).

thf(1412,plain,
    ! [SV195: $i,SV181: $i,SV144: $i,SV205: $i] :
      ( ( ( ~ ( ( SV205 = SV144 )
              | ( SV205 = SV181 ) )
          | ( in @ SV205 @ SV195 ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1382]) ).

thf(1413,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
          | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV144 )
          | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV181 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV144 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV181 ) )
              | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1383]) ).

thf(1414,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( in @ SV198 @ SV151 )
        = $false )
      | ( ( ~ ! [SY350: $i] :
                ~ ~ ( ~ ( in @ SV198 @ SY350 )
                    | ~ ( in @ SY350 @ SV112 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1384]) ).

thf(1415,plain,
    ! [SV151: $i,SV112: $i,SV198: $i] :
      ( ( ( ~ ! [SY351: $i] :
                ~ ~ ( ~ ( in @ SV198 @ SY351 )
                    | ~ ( in @ SY351 @ SV112 ) ) )
        = $false )
      | ( ( in @ SV198 @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1385]) ).

thf(1416,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1386]) ).

thf(1417,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ! [SY352: $i] :
              ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY352 )
                  | ~ ( in @ SY352 @ SV112 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1387]) ).

thf(1418,plain,
    ! [SV157: $i,SV118: $i,SV185: $i,SV202: $i] :
      ( ( ( ~ ( in @ SV202 @ SV185 ) )
        = $true )
      | ( ( ( in @ SV202 @ SV118 )
          | ( in @ SV202 @ SV157 ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1388]) ).

thf(1419,plain,
    ! [SV185: $i,SV157: $i,SV118: $i,SV202: $i] :
      ( ( ( ~ ( ( in @ SV202 @ SV118 )
              | ( in @ SV202 @ SV157 ) ) )
        = $true )
      | ( ( in @ SV202 @ SV185 )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1389]) ).

thf(1420,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1390]) ).

thf(1421,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
          | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1390]) ).

thf(1422,plain,
    ! [SV122: $i,SV161: $i] :
      ( ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV161 )
        = $true )
      | ( ( in @ ( sK17_SY318 @ SV161 @ SV122 ) @ SV122 )
        = $true )
      | ( ( SV122 = SV161 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1392]) ).

thf(1423,plain,
    ! [SV129: $i,SV167: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV129 )
              | ~ ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV167 ) ) )
        = $true )
      | ( ( disjoint @ SV129 @ SV167 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1395]) ).

thf(1424,plain,
    ! [SV167: $i,SV129: $i,SV206: $i] :
      ( ( ( ~ ( in @ SV206 @ SV129 )
          | ~ ( in @ SV206 @ SV167 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1396]) ).

thf(1425,plain,
    ! [SV169: $i,SV131: $i,SV189: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV189 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV203 @ SV131 )
              | ~ ~ ( in @ SV203 @ SV169 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1397]) ).

thf(1426,plain,
    ! [SV189: $i,SV169: $i,SV131: $i,SV203: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV203 @ SV131 )
                | ~ ~ ( in @ SV203 @ SV169 ) ) )
        = $true )
      | ( ( in @ SV203 @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1398]) ).

thf(1427,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1399]) ).

thf(1428,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
              | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1399]) ).

thf(1429,plain,
    ! [SV136: $i,SV173: $i,SV200: $i] :
      ( ( ( in @ SV200 @ SV173 )
        = $false )
      | ( ( subset @ SV200 @ SV136 )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1400]) ).

thf(1430,plain,
    ! [SV173: $i,SV136: $i,SV200: $i] :
      ( ( ( subset @ SV200 @ SV136 )
        = $false )
      | ( ( in @ SV200 @ SV173 )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1401]) ).

thf(1431,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
        = $true )
      | ( ( ~ ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
              | ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) ) )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1402]) ).

thf(1432,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
          | ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) )
        = $false )
      | ( ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
        = $false )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1403]) ).

thf(1433,plain,
    ! [SV138: $i,SV175: $i,SV201: $i] :
      ( ( ( in @ SV201 @ SV175 )
        = $false )
      | ( ( SV201 = SV138 )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1404]) ).

thf(1434,plain,
    ! [SV175: $i,SV138: $i,SV201: $i] :
      ( ( ( SV201 = SV138 )
        = $false )
      | ( ( in @ SV201 @ SV175 )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1405]) ).

thf(1435,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
        = $true )
      | ( ( ~ ( ( ( sK22_SY332 @ SV138 @ SV175 )
               != SV138 )
              | ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) ) )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1406]) ).

thf(1436,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ( ( sK22_SY332 @ SV138 @ SV175 )
           != SV138 )
          | ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) )
        = $false )
      | ( ( ( sK22_SY332 @ SV138 @ SV175 )
          = SV138 )
        = $false )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1407]) ).

thf(1437,plain,
    ! [SV179: $i,SV142: $i,SV193: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV193 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV204 @ SV142 )
              | ~ ( in @ SV204 @ SV179 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1408]) ).

thf(1438,plain,
    ! [SV193: $i,SV179: $i,SV142: $i,SV204: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV204 @ SV142 )
                | ~ ( in @ SV204 @ SV179 ) ) )
        = $true )
      | ( ( in @ SV204 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1409]) ).

thf(1439,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1410]) ).

thf(1440,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
              | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1410]) ).

thf(1441,plain,
    ! [SV181: $i,SV144: $i,SV195: $i,SV205: $i] :
      ( ( ( ~ ( in @ SV205 @ SV195 ) )
        = $true )
      | ( ( ( SV205 = SV144 )
          | ( SV205 = SV181 ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1411]) ).

thf(1442,plain,
    ! [SV195: $i,SV181: $i,SV144: $i,SV205: $i] :
      ( ( ( ~ ( ( SV205 = SV144 )
              | ( SV205 = SV181 ) ) )
        = $true )
      | ( ( in @ SV205 @ SV195 )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1412]) ).

thf(1443,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV144 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV181 ) )
              | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1413]) ).

thf(1444,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV144 )
          | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV181 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV144 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV181 ) )
              | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1413]) ).

thf(1445,plain,
    ! [SV151: $i,SV112: $i,SV198: $i] :
      ( ( ( ! [SY350: $i] :
              ~ ~ ( ~ ( in @ SV198 @ SY350 )
                  | ~ ( in @ SY350 @ SV112 ) ) )
        = $false )
      | ( ( in @ SV198 @ SV151 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1414]) ).

thf(1446,plain,
    ! [SV151: $i,SV112: $i,SV198: $i] :
      ( ( ( ! [SY351: $i] :
              ~ ~ ( ~ ( in @ SV198 @ SY351 )
                  | ~ ( in @ SY351 @ SV112 ) ) )
        = $true )
      | ( ( in @ SV198 @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1415]) ).

thf(1447,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ~ ! [SY353: $i] :
                  ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                      | ~ ( in @ SY353 @ SV112 ) )
          | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1416]) ).

thf(1448,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
                | ~ ( in @ SV207 @ SV112 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1417]) ).

thf(1449,plain,
    ! [SV157: $i,SV118: $i,SV185: $i,SV202: $i] :
      ( ( ( in @ SV202 @ SV185 )
        = $false )
      | ( ( ( in @ SV202 @ SV118 )
          | ( in @ SV202 @ SV157 ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1418]) ).

thf(1450,plain,
    ! [SV185: $i,SV157: $i,SV118: $i,SV202: $i] :
      ( ( ( ( in @ SV202 @ SV118 )
          | ( in @ SV202 @ SV157 ) )
        = $false )
      | ( ( in @ SV202 @ SV185 )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1419]) ).

thf(1451,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1420]) ).

thf(1452,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1421]) ).

thf(1453,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
                  | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1421]) ).

thf(1454,plain,
    ! [SV129: $i,SV167: $i] :
      ( ( ( ~ ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV129 )
          | ~ ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV167 ) )
        = $false )
      | ( ( disjoint @ SV129 @ SV167 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1423]) ).

thf(1455,plain,
    ! [SV167: $i,SV129: $i,SV206: $i] :
      ( ( ( ~ ( in @ SV206 @ SV129 ) )
        = $true )
      | ( ( ~ ( in @ SV206 @ SV167 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1424]) ).

thf(1456,plain,
    ! [SV169: $i,SV131: $i,SV189: $i,SV203: $i] :
      ( ( ( in @ SV203 @ SV189 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV203 @ SV131 )
              | ~ ~ ( in @ SV203 @ SV169 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1425]) ).

thf(1457,plain,
    ! [SV189: $i,SV169: $i,SV131: $i,SV203: $i] :
      ( ( ( ~ ( ~ ( in @ SV203 @ SV131 )
              | ~ ~ ( in @ SV203 @ SV169 ) ) )
        = $false )
      | ( ( in @ SV203 @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1426]) ).

thf(1458,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1427]) ).

thf(1459,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
          | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1428]) ).

thf(1460,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
          | ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 ) )
        = $false )
      | ( ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1431]) ).

thf(1461,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 ) )
        = $false )
      | ( ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
        = $false )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1432]) ).

thf(1462,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
        = $false )
      | ( ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
        = $false )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1432]) ).

thf(1463,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ( ( sK22_SY332 @ SV138 @ SV175 )
           != SV138 )
          | ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 ) )
        = $false )
      | ( ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1435]) ).

thf(1464,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ( sK22_SY332 @ SV138 @ SV175 )
         != SV138 )
        = $false )
      | ( ( ( sK22_SY332 @ SV138 @ SV175 )
          = SV138 )
        = $false )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1436]) ).

thf(1465,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
        = $false )
      | ( ( ( sK22_SY332 @ SV138 @ SV175 )
          = SV138 )
        = $false )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1436]) ).

thf(1466,plain,
    ! [SV179: $i,SV142: $i,SV193: $i,SV204: $i] :
      ( ( ( in @ SV204 @ SV193 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV204 @ SV142 )
              | ~ ( in @ SV204 @ SV179 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1437]) ).

thf(1467,plain,
    ! [SV193: $i,SV179: $i,SV142: $i,SV204: $i] :
      ( ( ( ~ ( ~ ( in @ SV204 @ SV142 )
              | ~ ( in @ SV204 @ SV179 ) ) )
        = $false )
      | ( ( in @ SV204 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1438]) ).

thf(1468,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1439]) ).

thf(1469,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
          | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1440]) ).

thf(1470,plain,
    ! [SV181: $i,SV144: $i,SV195: $i,SV205: $i] :
      ( ( ( in @ SV205 @ SV195 )
        = $false )
      | ( ( ( SV205 = SV144 )
          | ( SV205 = SV181 ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1441]) ).

thf(1471,plain,
    ! [SV195: $i,SV181: $i,SV144: $i,SV205: $i] :
      ( ( ( ( SV205 = SV144 )
          | ( SV205 = SV181 ) )
        = $false )
      | ( ( in @ SV205 @ SV195 )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1442]) ).

thf(1472,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV144 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV181 ) )
              | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1443]) ).

thf(1473,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV144 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV144 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV181 ) )
              | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1444]) ).

thf(1474,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV181 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV144 )
                  | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                    = SV181 ) )
              | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) ) )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1444]) ).

thf(1475,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV198 @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) )
                | ~ ( in @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) @ SV112 ) ) )
        = $false )
      | ( ( in @ SV198 @ SV151 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1445]) ).

thf(1476,plain,
    ! [SV151: $i,SV112: $i,SV208: $i,SV198: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV198 @ SV208 )
                | ~ ( in @ SV208 @ SV112 ) ) )
        = $true )
      | ( ( in @ SV198 @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1446]) ).

thf(1477,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ~ ! [SY353: $i] :
                  ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                      | ~ ( in @ SY353 @ SV112 ) ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1447]) ).

thf(1478,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1447]) ).

thf(1479,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
              | ~ ( in @ SV207 @ SV112 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1448]) ).

thf(1480,plain,
    ! [SV185: $i,SV157: $i,SV118: $i,SV202: $i] :
      ( ( ( in @ SV202 @ SV118 )
        = $true )
      | ( ( in @ SV202 @ SV157 )
        = $true )
      | ( ( in @ SV202 @ SV185 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1449]) ).

thf(1481,plain,
    ! [SV157: $i,SV185: $i,SV118: $i,SV202: $i] :
      ( ( ( in @ SV202 @ SV118 )
        = $false )
      | ( ( in @ SV202 @ SV185 )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1450]) ).

thf(1482,plain,
    ! [SV118: $i,SV185: $i,SV157: $i,SV202: $i] :
      ( ( ( in @ SV202 @ SV157 )
        = $false )
      | ( ( in @ SV202 @ SV185 )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1450]) ).

thf(1483,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
          | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) )
        = $false )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1451]) ).

thf(1484,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
          | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) )
        = $false )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1452]) ).

thf(1485,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
          | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 ) )
        = $false )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1453]) ).

thf(1486,plain,
    ! [SV129: $i,SV167: $i] :
      ( ( ( ~ ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV129 ) )
        = $false )
      | ( ( disjoint @ SV129 @ SV167 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1454]) ).

thf(1487,plain,
    ! [SV129: $i,SV167: $i] :
      ( ( ( ~ ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV167 ) )
        = $false )
      | ( ( disjoint @ SV129 @ SV167 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1454]) ).

thf(1488,plain,
    ! [SV167: $i,SV129: $i,SV206: $i] :
      ( ( ( in @ SV206 @ SV129 )
        = $false )
      | ( ( ~ ( in @ SV206 @ SV167 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1455]) ).

thf(1489,plain,
    ! [SV189: $i,SV169: $i,SV131: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV131 )
          | ~ ~ ( in @ SV203 @ SV169 ) )
        = $false )
      | ( ( in @ SV203 @ SV189 )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1456]) ).

thf(1490,plain,
    ! [SV189: $i,SV169: $i,SV131: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV131 )
          | ~ ~ ( in @ SV203 @ SV169 ) )
        = $true )
      | ( ( in @ SV203 @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1457]) ).

thf(1491,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
          | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1458]) ).

thf(1492,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 ) )
        = $true )
      | ( ( ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1459]) ).

thf(1493,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( ~ ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 ) )
        = $false )
      | ( ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1460]) ).

thf(1494,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
        = $false )
      | ( ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1460]) ).

thf(1495,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
        = $true )
      | ( ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
        = $false )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1461]) ).

thf(1496,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ( sK22_SY332 @ SV138 @ SV175 )
         != SV138 )
        = $false )
      | ( ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1463]) ).

thf(1497,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
        = $false )
      | ( ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1463]) ).

thf(1498,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ( sK22_SY332 @ SV138 @ SV175 )
          = SV138 )
        = $true )
      | ( ( ( sK22_SY332 @ SV138 @ SV175 )
          = SV138 )
        = $false )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1464]) ).

thf(1499,plain,
    ! [SV193: $i,SV179: $i,SV142: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV142 )
          | ~ ( in @ SV204 @ SV179 ) )
        = $false )
      | ( ( in @ SV204 @ SV193 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1466]) ).

thf(1500,plain,
    ! [SV193: $i,SV179: $i,SV142: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV142 )
          | ~ ( in @ SV204 @ SV179 ) )
        = $true )
      | ( ( in @ SV204 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1467]) ).

thf(1501,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
          | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1468]) ).

thf(1502,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 ) )
        = $true )
      | ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1469]) ).

thf(1503,plain,
    ! [SV195: $i,SV181: $i,SV144: $i,SV205: $i] :
      ( ( ( SV205 = SV144 )
        = $true )
      | ( ( SV205 = SV181 )
        = $true )
      | ( ( in @ SV205 @ SV195 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1470]) ).

thf(1504,plain,
    ! [SV181: $i,SV195: $i,SV144: $i,SV205: $i] :
      ( ( ( SV205 = SV144 )
        = $false )
      | ( ( in @ SV205 @ SV195 )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1471]) ).

thf(1505,plain,
    ! [SV144: $i,SV195: $i,SV181: $i,SV205: $i] :
      ( ( ( SV205 = SV181 )
        = $false )
      | ( ( in @ SV205 @ SV195 )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1471]) ).

thf(1506,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV144 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV181 ) )
          | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) )
        = $false )
      | ( ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1472]) ).

thf(1507,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV144 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV181 ) )
          | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) )
        = $false )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV144 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1473]) ).

thf(1508,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV144 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV181 ) )
          | ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 ) )
        = $false )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV181 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1474]) ).

thf(1509,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( ~ ( ~ ( in @ SV198 @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) )
              | ~ ( in @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) @ SV112 ) ) )
        = $true )
      | ( ( in @ SV198 @ SV151 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1475]) ).

thf(1510,plain,
    ! [SV151: $i,SV112: $i,SV208: $i,SV198: $i] :
      ( ( ( ~ ( ~ ( in @ SV198 @ SV208 )
              | ~ ( in @ SV208 @ SV112 ) ) )
        = $false )
      | ( ( in @ SV198 @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1476]) ).

thf(1511,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ! [SY353: $i] :
                ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                    | ~ ( in @ SY353 @ SV112 ) ) )
        = $true )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1477]) ).

thf(1512,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
          | ~ ( in @ SV207 @ SV112 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1479]) ).

thf(1513,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) ) )
        = $false )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1483]) ).

thf(1514,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
        = $false )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1483]) ).

thf(1515,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) ) )
        = $false )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1484]) ).

thf(1516,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
        = $false )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1484]) ).

thf(1517,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ~ ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
              | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) ) )
        = $false )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1485]) ).

thf(1518,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
        = $false )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1485]) ).

thf(1519,plain,
    ! [SV129: $i,SV167: $i] :
      ( ( ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV129 )
        = $true )
      | ( ( disjoint @ SV129 @ SV167 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1486]) ).

thf(1520,plain,
    ! [SV129: $i,SV167: $i] :
      ( ( ( in @ ( sK27_SY321 @ SV167 @ SV129 ) @ SV167 )
        = $true )
      | ( ( disjoint @ SV129 @ SV167 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1487]) ).

thf(1521,plain,
    ! [SV129: $i,SV167: $i,SV206: $i] :
      ( ( ( in @ SV206 @ SV167 )
        = $false )
      | ( ( in @ SV206 @ SV129 )
        = $false )
      | ( ( ~ ( disjoint @ SV129 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1488]) ).

thf(1522,plain,
    ! [SV169: $i,SV189: $i,SV131: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV131 ) )
        = $false )
      | ( ( in @ SV203 @ SV189 )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1489]) ).

thf(1523,plain,
    ! [SV131: $i,SV189: $i,SV169: $i,SV203: $i] :
      ( ( ( ~ ~ ( in @ SV203 @ SV169 ) )
        = $false )
      | ( ( in @ SV203 @ SV189 )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1489]) ).

thf(1524,plain,
    ! [SV189: $i,SV169: $i,SV131: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV131 ) )
        = $true )
      | ( ( ~ ~ ( in @ SV203 @ SV169 ) )
        = $true )
      | ( ( in @ SV203 @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1490]) ).

thf(1525,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1491]) ).

thf(1526,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1491]) ).

thf(1527,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1492]) ).

thf(1528,plain,
    ! [SV173: $i,SV136: $i] :
      ( ( ( subset @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV136 )
        = $true )
      | ( ( in @ ( sK21_SY330 @ SV136 @ SV173 ) @ SV173 )
        = $true )
      | ( ( SV173
          = ( powerset @ SV136 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1493]) ).

thf(1529,plain,
    ! [SV175: $i,SV138: $i] :
      ( ( ( ( sK22_SY332 @ SV138 @ SV175 )
          = SV138 )
        = $true )
      | ( ( in @ ( sK22_SY332 @ SV138 @ SV175 ) @ SV175 )
        = $true )
      | ( ( SV175
          = ( singleton @ SV138 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1496]) ).

thf(1530,plain,
    ! [SV179: $i,SV193: $i,SV142: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV142 ) )
        = $false )
      | ( ( in @ SV204 @ SV193 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1499]) ).

thf(1531,plain,
    ! [SV142: $i,SV193: $i,SV179: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV179 ) )
        = $false )
      | ( ( in @ SV204 @ SV193 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1499]) ).

thf(1532,plain,
    ! [SV193: $i,SV179: $i,SV142: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV142 ) )
        = $true )
      | ( ( ~ ( in @ SV204 @ SV179 ) )
        = $true )
      | ( ( in @ SV204 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1500]) ).

thf(1533,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1501]) ).

thf(1534,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1501]) ).

thf(1535,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1502]) ).

thf(1536,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV144 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV181 ) ) )
        = $false )
      | ( ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1506]) ).

thf(1537,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
        = $false )
      | ( ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1506]) ).

thf(1538,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV144 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV181 ) ) )
        = $false )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV144 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1507]) ).

thf(1539,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
        = $false )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV144 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1507]) ).

thf(1540,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ~ ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV144 )
              | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
                = SV181 ) ) )
        = $false )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV181 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1508]) ).

thf(1541,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
        = $false )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV181 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1508]) ).

thf(1542,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( ~ ( in @ SV198 @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) )
          | ~ ( in @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) @ SV112 ) )
        = $false )
      | ( ( in @ SV198 @ SV151 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1509]) ).

thf(1543,plain,
    ! [SV151: $i,SV112: $i,SV208: $i,SV198: $i] :
      ( ( ( ~ ( in @ SV198 @ SV208 )
          | ~ ( in @ SV208 @ SV112 ) )
        = $true )
      | ( ( in @ SV198 @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1510]) ).

thf(1544,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ! [SY353: $i] :
              ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                  | ~ ( in @ SY353 @ SV112 ) ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1511]) ).

thf(1545,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 ) )
        = $true )
      | ( ( ~ ( in @ SV207 @ SV112 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1512]) ).

thf(1546,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
          | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
        = $true )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1513]) ).

thf(1547,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
          | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
        = $true )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1515]) ).

thf(1548,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
          | ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 ) )
        = $true )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1517]) ).

thf(1549,plain,
    ! [SV206: $i,SV167: $i,SV129: $i] :
      ( ( ( disjoint @ SV129 @ SV167 )
        = $false )
      | ( ( in @ SV206 @ SV129 )
        = $false )
      | ( ( in @ SV206 @ SV167 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1521]) ).

thf(1550,plain,
    ! [SV169: $i,SV189: $i,SV131: $i,SV203: $i] :
      ( ( ( in @ SV203 @ SV131 )
        = $true )
      | ( ( in @ SV203 @ SV189 )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1522]) ).

thf(1551,plain,
    ! [SV131: $i,SV189: $i,SV169: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV169 ) )
        = $true )
      | ( ( in @ SV203 @ SV189 )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1523]) ).

thf(1552,plain,
    ! [SV189: $i,SV169: $i,SV131: $i,SV203: $i] :
      ( ( ( in @ SV203 @ SV131 )
        = $false )
      | ( ( ~ ~ ( in @ SV203 @ SV169 ) )
        = $true )
      | ( ( in @ SV203 @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1524]) ).

thf(1553,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
              | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) ) )
        = $true )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1525]) ).

thf(1554,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1527]) ).

thf(1555,plain,
    ! [SV179: $i,SV193: $i,SV142: $i,SV204: $i] :
      ( ( ( in @ SV204 @ SV142 )
        = $true )
      | ( ( in @ SV204 @ SV193 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1530]) ).

thf(1556,plain,
    ! [SV142: $i,SV193: $i,SV179: $i,SV204: $i] :
      ( ( ( in @ SV204 @ SV179 )
        = $true )
      | ( ( in @ SV204 @ SV193 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1531]) ).

thf(1557,plain,
    ! [SV193: $i,SV179: $i,SV142: $i,SV204: $i] :
      ( ( ( in @ SV204 @ SV142 )
        = $false )
      | ( ( ~ ( in @ SV204 @ SV179 ) )
        = $true )
      | ( ( in @ SV204 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1532]) ).

thf(1558,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
              | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) ) )
        = $true )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1533]) ).

thf(1559,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                    | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
              | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1535]) ).

thf(1560,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV144 )
          | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV181 ) )
        = $true )
      | ( ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1536]) ).

thf(1561,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV144 )
          | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV181 ) )
        = $true )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV144 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1538]) ).

thf(1562,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV144 )
          | ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
            = SV181 ) )
        = $true )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV181 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1540]) ).

thf(1563,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( ~ ( in @ SV198 @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) ) )
        = $false )
      | ( ( in @ SV198 @ SV151 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1542]) ).

thf(1564,plain,
    ! [SV198: $i,SV112: $i,SV151: $i] :
      ( ( ( ~ ( in @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) @ SV112 ) )
        = $false )
      | ( ( in @ SV198 @ SV151 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1542]) ).

thf(1565,plain,
    ! [SV151: $i,SV112: $i,SV208: $i,SV198: $i] :
      ( ( ( ~ ( in @ SV198 @ SV208 ) )
        = $true )
      | ( ( ~ ( in @ SV208 @ SV112 ) )
        = $true )
      | ( ( in @ SV198 @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1543]) ).

thf(1566,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK29_SY353 @ SV151 @ SV112 ) )
                | ~ ( in @ ( sK29_SY353 @ SV151 @ SV112 ) @ SV112 ) ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1544]) ).

thf(1567,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( ~ ( in @ SV207 @ SV112 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1545]) ).

thf(1568,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
        = $true )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 )
        = $true )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1546]) ).

thf(1569,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
        = $true )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 )
        = $true )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1547]) ).

thf(1570,plain,
    ! [SV185: $i,SV118: $i,SV157: $i] :
      ( ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV118 )
        = $true )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 )
        = $true )
      | ( ( in @ ( sK23_SY343 @ SV157 @ SV118 @ SV185 ) @ SV157 )
        = $false )
      | ( ( SV185
          = ( set_union2 @ SV118 @ SV157 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1548]) ).

thf(1571,plain,
    ! [SV131: $i,SV189: $i,SV169: $i,SV203: $i] :
      ( ( ( in @ SV203 @ SV169 )
        = $false )
      | ( ( in @ SV203 @ SV189 )
        = $false )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1551]) ).

thf(1572,plain,
    ! [SV189: $i,SV131: $i,SV169: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ SV169 ) )
        = $false )
      | ( ( in @ SV203 @ SV131 )
        = $false )
      | ( ( in @ SV203 @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1552]) ).

thf(1573,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
          | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1553]) ).

thf(1574,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                    | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
              | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) ) )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1554]) ).

thf(1575,plain,
    ! [SV193: $i,SV142: $i,SV179: $i,SV204: $i] :
      ( ( ( in @ SV204 @ SV179 )
        = $false )
      | ( ( in @ SV204 @ SV142 )
        = $false )
      | ( ( in @ SV204 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1557]) ).

thf(1576,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
          | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1558]) ).

thf(1577,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
          | ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1559]) ).

thf(1578,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV144 )
        = $true )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV181 )
        = $true )
      | ( ( in @ ( sK26_SY349 @ SV181 @ SV144 @ SV195 ) @ SV195 )
        = $true )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1560]) ).

thf(1579,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV144 )
        = $true )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV181 )
        = $true )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV144 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1561]) ).

thf(1580,plain,
    ! [SV195: $i,SV144: $i,SV181: $i] :
      ( ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV144 )
        = $true )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV181 )
        = $true )
      | ( ( ( sK26_SY349 @ SV181 @ SV144 @ SV195 )
          = SV181 )
        = $false )
      | ( ( SV195
          = ( unordered_pair @ SV144 @ SV181 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1562]) ).

thf(1581,plain,
    ! [SV112: $i,SV151: $i,SV198: $i] :
      ( ( ( in @ SV198 @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) )
        = $true )
      | ( ( in @ SV198 @ SV151 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1563]) ).

thf(1582,plain,
    ! [SV198: $i,SV112: $i,SV151: $i] :
      ( ( ( in @ ( sK28_SY350 @ SV151 @ SV112 @ SV198 ) @ SV112 )
        = $true )
      | ( ( in @ SV198 @ SV151 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1564]) ).

thf(1583,plain,
    ! [SV151: $i,SV112: $i,SV208: $i,SV198: $i] :
      ( ( ( in @ SV198 @ SV208 )
        = $false )
      | ( ( ~ ( in @ SV208 @ SV112 ) )
        = $true )
      | ( ( in @ SV198 @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1565]) ).

thf(1584,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK29_SY353 @ SV151 @ SV112 ) )
              | ~ ( in @ ( sK29_SY353 @ SV151 @ SV112 ) @ SV112 ) ) )
        = $true )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1566]) ).

thf(1585,plain,
    ! [SV151: $i,SV112: $i,SV207: $i] :
      ( ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY353: $i] :
                      ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                          | ~ ( in @ SY353 @ SV112 ) )
              | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) ) )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1567]) ).

thf(1586,plain,
    ! [SV189: $i,SV131: $i,SV169: $i,SV203: $i] :
      ( ( ( in @ SV203 @ SV169 )
        = $true )
      | ( ( in @ SV203 @ SV131 )
        = $false )
      | ( ( in @ SV203 @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1572]) ).

thf(1587,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1573]) ).

thf(1588,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1573]) ).

thf(1589,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
          | ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1574]) ).

thf(1590,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1576]) ).

thf(1591,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1576]) ).

thf(1592,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
                | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1577]) ).

thf(1593,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1577]) ).

thf(1594,plain,
    ! [SV151: $i,SV198: $i,SV112: $i,SV208: $i] :
      ( ( ( in @ SV208 @ SV112 )
        = $false )
      | ( ( in @ SV198 @ SV208 )
        = $false )
      | ( ( in @ SV198 @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1583]) ).

thf(1595,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK29_SY353 @ SV151 @ SV112 ) )
          | ~ ( in @ ( sK29_SY353 @ SV151 @ SV112 ) @ SV112 ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1584]) ).

thf(1596,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ~ ! [SY353: $i] :
                  ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                      | ~ ( in @ SY353 @ SV112 ) )
          | ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1585]) ).

thf(1597,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $true )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1587]) ).

thf(1598,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $true )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1588]) ).

thf(1599,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
                | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1589]) ).

thf(1600,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1589]) ).

thf(1601,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $true )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1590]) ).

thf(1602,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $true )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1591]) ).

thf(1603,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
              | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) ) )
        = $true )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1592]) ).

thf(1604,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK29_SY353 @ SV151 @ SV112 ) ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1595]) ).

thf(1605,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ( ~ ( in @ ( sK29_SY353 @ SV151 @ SV112 ) @ SV112 ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1595]) ).

thf(1606,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ~ ! [SY353: $i] :
                  ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                      | ~ ( in @ SY353 @ SV112 ) ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1596]) ).

thf(1607,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1596]) ).

thf(1608,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV189 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1598]) ).

thf(1609,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
              | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) ) )
        = $true )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1599]) ).

thf(1610,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
          | ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1603]) ).

thf(1611,plain,
    ! [SV151: $i,SV112: $i] :
      ( ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK29_SY353 @ SV151 @ SV112 ) )
        = $true )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1604]) ).

thf(1612,plain,
    ! [SV112: $i,SV151: $i] :
      ( ( ( in @ ( sK29_SY353 @ SV151 @ SV112 ) @ SV112 )
        = $true )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV151 )
        = $true )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1605]) ).

thf(1613,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ! [SY353: $i] :
                ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                    | ~ ( in @ SY353 @ SV112 ) ) )
        = $true )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1606]) ).

thf(1614,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
          | ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1609]) ).

thf(1615,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1610]) ).

thf(1616,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( ~ ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 ) )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1610]) ).

thf(1617,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ! [SY353: $i] :
              ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SY353 )
                  | ~ ( in @ SY353 @ SV112 ) ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1613]) ).

thf(1618,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1614]) ).

thf(1619,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1614]) ).

thf(1620,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $true )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1615]) ).

thf(1621,plain,
    ! [SV193: $i,SV142: $i,SV179: $i] :
      ( ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $true )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV142 )
        = $false )
      | ( ( in @ ( sK25_SY347 @ SV179 @ SV142 @ SV193 ) @ SV179 )
        = $false )
      | ( ( SV193
          = ( set_intersection2 @ SV142 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1616]) ).

thf(1622,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) )
                | ~ ( in @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) @ SV112 ) ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1617]) ).

thf(1623,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $true )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1618]) ).

thf(1624,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 ) )
        = $true )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1619]) ).

thf(1625,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) )
              | ~ ( in @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) @ SV112 ) ) )
        = $true )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1622]) ).

thf(1626,plain,
    ! [SV189: $i,SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK24_SY345 @ SV169 @ SV131 @ SV189 ) @ SV169 )
        = $true )
      | ( ( SV189
          = ( set_difference @ SV131 @ SV169 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1624]) ).

thf(1627,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) )
          | ~ ( in @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) @ SV112 ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1625]) ).

thf(1628,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( ~ ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1627]) ).

thf(1629,plain,
    ! [SV112: $i,SV151: $i,SV207: $i] :
      ( ( ( ~ ( in @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) @ SV112 ) )
        = $false )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1627]) ).

thf(1630,plain,
    ! [SV207: $i,SV151: $i,SV112: $i] :
      ( ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) )
        = $true )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1628]) ).

thf(1631,plain,
    ! [SV112: $i,SV151: $i,SV207: $i] :
      ( ( ( in @ ( sK30_SY353 @ SV207 @ SV151 @ SV112 ) @ SV112 )
        = $true )
      | ( ( in @ ( sK19_SY309 @ SV112 @ SV151 ) @ SV207 )
        = $false )
      | ( ( in @ SV207 @ SV112 )
        = $false )
      | ( ( SV151
          = ( union @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1629]) ).

thf(1632,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[930,1631,1630,1626,1623,1621,1620,1612,1611,1608,1607,1602,1601,1600,1597,1594,1593,1586,1582,1581,1580,1579,1578,1575,1571,1570,1569,1568,1556,1555,1550,1549,1541,1539,1537,1534,1529,1528,1526,1520,1519,1518,1516,1514,1505,1504,1503,1498,1497,1495,1494,1482,1481,1480,1478,1465,1462,1434,1433,1430,1429,1422,1394,1393,1391,1366,1365,1361,1339,1338,1333,1330,1329,1325,1322,1315,1300,1297,1283,1282,1274,1273,1272,1254,1239,1234,1230,1229,1212,1183,1182,1170,1165,1164,1163,1146,1141,1132,1120,1108,1096,1081,1059,1028,1027,1026,1025,1024,984,982,939,938,937,936,935,934,933,932,931]) ).

thf(1633,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[1632,890]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SEU158+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
% 0.09/0.15  % Computer : n002.cluster.edu
% 0.09/0.15  % Model    : x86_64 x86_64
% 0.09/0.15  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.15  % Memory   : 8046.5625MB
% 0.09/0.15  % OS       : Linux 6.8.0-71-generic
% 0.09/0.15  % CPULimit : 300
% 0.09/0.15  % WCLimit  : 300
% 0.09/0.15  % DateTime : Tue Oct  6 15:04:42 UTC 2026
% 0.09/0.16  % CPUTime  : 
% 0.09/0.16  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 7.98/1.50  
% 7.98/1.50   No.of.Axioms: 52
% 7.98/1.50  
% 7.98/1.50   Length.of.Defs: 0
% 7.98/1.50  
% 7.98/1.50   Contains.Choice.Funs: false
% 7.98/1.50  ..................................................
% 7.98/1.50  
% 7.98/1.50  ********************************
% 7.98/1.50  *   All subproblems solved!    *
% 7.98/1.50  ********************************
% 7.98/1.50  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:52,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:1632,loop_count:0,foatp_calls:1,translation:fof_full)
% 7.98/1.50  
% 7.98/1.50  %**** Beginning of derivation protocol ****
% 7.98/1.50  % SZS output start CNFRefutation
% See solution above
% 7.98/1.51  
% 7.98/1.51  %**** End of derivation protocol ****
% 7.98/1.51  %**** no. of clauses in derivation: 1598 ****
% 7.98/1.51  %**** clause counter: 1632 ****
% 7.98/1.51  
% 7.98/1.51  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:52,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:1632,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------