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

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SEU177+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 : n003.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 10:43:16 AM UTC 2026

% Result   : Theorem 8.56s 1.67s
% Output   : CNFRefutation 8.56s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   47
%            Number of leaves      :   36
% Syntax   : Number of formulae    : 1638 ( 429 unt;   0 typ;   0 def)
%            Number of atoms       : 15849 (6195 equ;   0 cnn)
%            Maximal formula atoms :    6 (   9 avg)
%            Number of connectives : 36102 (9358   ~;6010   |;  67   &;20535   @)
%                                         (  92 <=>;  40  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   5 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   91 (  88 usr;   8 con; 0-5 aty)
%            Number of variables   : 5996 (   0   ^;5968   !;  28   ?;5996   :)

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

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

thf(tp_cast_to_subset,type,
    cast_to_subset: $i > $i ).

thf(tp_complements_of_subsets,type,
    complements_of_subsets: $i > $i > $i ).

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

thf(tp_element,type,
    element: $i > $i > $o ).

thf(tp_empty,type,
    empty: $i > $o ).

thf(tp_empty_set,type,
    empty_set: $i ).

thf(tp_in,type,
    in: $i > $i > $o ).

thf(tp_meet_of_subsets,type,
    meet_of_subsets: $i > $i > $i ).

thf(tp_ordered_pair,type,
    ordered_pair: $i > $i > $i ).

thf(tp_powerset,type,
    powerset: $i > $i ).

thf(tp_proper_subset,type,
    proper_subset: $i > $i > $o ).

thf(tp_relation,type,
    relation: $i > $o ).

thf(tp_relation_dom,type,
    relation_dom: $i > $i ).

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

thf(tp_sK10_SY194,type,
    sK10_SY194: $i > $i > $i > $i ).

thf(tp_sK11_SY197,type,
    sK11_SY197: $i > $i > $i > $i ).

thf(tp_sK12_SY200,type,
    sK12_SY200: $i > $i > $i > $i ).

thf(tp_sK13_SY206,type,
    sK13_SY206: $i > $i > $i > $i ).

thf(tp_sK14_SY213,type,
    sK14_SY213: $i > $i > $i > $i ).

thf(tp_sK15_SY217,type,
    sK15_SY217: $i > $i > $i ).

thf(tp_sK16_SY223,type,
    sK16_SY223: $i > $i > $i ).

thf(tp_sK17_SY157,type,
    sK17_SY157: $i > $i > $i ).

thf(tp_sK18_SY226,type,
    sK18_SY226: $i > $i > $i > $i ).

thf(tp_sK19_SY230,type,
    sK19_SY230: $i > $i > $i > $i > $i ).

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

thf(tp_sK20_SY238,type,
    sK20_SY238: $i > $i > $i > $i ).

thf(tp_sK21_SY242,type,
    sK21_SY242: $i > $i > $i > $i ).

thf(tp_sK22_SY229,type,
    sK22_SY229: $i > $i > $i ).

thf(tp_sK23_SY247,type,
    sK23_SY247: $i > $i > $i > $i > $i ).

thf(tp_sK24_SY236,type,
    sK24_SY236: $i > $i > $i > $i ).

thf(tp_sK25_SY241,type,
    sK25_SY241: $i > $i > $i ).

thf(tp_sK26_SY245,type,
    sK26_SY245: $i > $i > $i ).

thf(tp_sK27_SY241,type,
    sK27_SY241: $i > $i > $i > $i ).

thf(tp_sK28_SY249,type,
    sK28_SY249: $i > $i > $i > $i ).

thf(tp_sK29_SY245,type,
    sK29_SY245: $i > $i > $i > $i ).

thf(tp_sK2_SY73,type,
    sK2_SY73: $i ).

thf(tp_sK30_SY229,type,
    sK30_SY229: $i > $i > $i > $i ).

thf(tp_sK31_SY236,type,
    sK31_SY236: $i > $i > $i > $i > $i > $i ).

thf(tp_sK32_SY250,type,
    sK32_SY250: $i > $i > $i > $i > $i > $i ).

thf(tp_sK33_SX0,type,
    sK33_SX0: $i ).

thf(tp_sK34_SY328,type,
    sK34_SY328: $i > $i > $i ).

thf(tp_sK35_SY262,type,
    sK35_SY262: $i > $i ).

thf(tp_sK36_SY327,type,
    sK36_SY327: $i > $i > $i ).

thf(tp_sK37_SY358,type,
    sK37_SY358: $i > $i > $i ).

thf(tp_sK38_SY365,type,
    sK38_SY365: $i > $i > $i ).

thf(tp_sK39_SY369,type,
    sK39_SY369: $i > $i > $i > $i ).

thf(tp_sK3_SY75,type,
    sK3_SY75: $i ).

thf(tp_sK40_SY371,type,
    sK40_SY371: $i > $i > $i > $i ).

thf(tp_sK41_SY379,type,
    sK41_SY379: $i > $i > $i > $i ).

thf(tp_sK42_SY385,type,
    sK42_SY385: $i > $i > $i > $i ).

thf(tp_sK43_SY387,type,
    sK43_SY387: $i > $i > $i > $i ).

thf(tp_sK44_SY392,type,
    sK44_SY392: $i > $i > $i ).

thf(tp_sK45_SY398,type,
    sK45_SY398: $i > $i > $i ).

thf(tp_sK46_SY339,type,
    sK46_SY339: $i > $i > $i ).

thf(tp_sK47_SY401,type,
    sK47_SY401: $i > $i > $i > $i ).

thf(tp_sK48_SY405,type,
    sK48_SY405: $i > $i > $i > $i > $i ).

thf(tp_sK49_SY413,type,
    sK49_SY413: $i > $i > $i > $i ).

thf(tp_sK4_SX0,type,
    sK4_SX0: $i ).

thf(tp_sK50_SY417,type,
    sK50_SY417: $i > $i > $i > $i ).

thf(tp_sK51_SY404,type,
    sK51_SY404: $i > $i > $i ).

thf(tp_sK52_SY422,type,
    sK52_SY422: $i > $i > $i > $i > $i ).

thf(tp_sK53_SY411,type,
    sK53_SY411: $i > $i > $i > $i ).

thf(tp_sK54_SY416,type,
    sK54_SY416: $i > $i > $i ).

thf(tp_sK55_SY420,type,
    sK55_SY420: $i > $i > $i ).

thf(tp_sK56_SY416,type,
    sK56_SY416: $i > $i > $i > $i ).

thf(tp_sK57_SY420,type,
    sK57_SY420: $i > $i > $i > $i ).

thf(tp_sK58_SY424,type,
    sK58_SY424: $i > $i > $i > $i ).

thf(tp_sK59_SY404,type,
    sK59_SY404: $i > $i > $i > $i ).

thf(tp_sK5_SY156,type,
    sK5_SY156: $i > $i > $i ).

thf(tp_sK60_SY411,type,
    sK60_SY411: $i > $i > $i > $i > $i > $i ).

thf(tp_sK61_SY425,type,
    sK61_SY425: $i > $i > $i > $i > $i > $i ).

thf(tp_sK6_SY87,type,
    sK6_SY87: $i > $i ).

thf(tp_sK7_SY167,type,
    sK7_SY167: $i > $i > $i ).

thf(tp_sK8_SY174,type,
    sK8_SY174: $i > $i > $i ).

thf(tp_sK9_SY189,type,
    sK9_SY189: $i > $i > $i ).

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

thf(38,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_m1_subset_1) ).

thf(43,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_xboole_0) ).

thf(44,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_tarski) ).

thf(45,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_xboole_0) ).

thf(46,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_tarski) ).

thf(48,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_zfmisc_1) ).

thf(49,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_xboole_0) ).

thf(50,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_tarski) ).

thf(52,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_relat_1) ).

thf(53,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_zfmisc_1) ).

thf(54,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_xboole_0) ).

thf(55,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_tarski) ).

thf(56,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_setfam_1) ).

thf(57,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_relat_1) ).

thf(63,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( B
            = ( relation_rng @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ? [D: $i] : ( in @ ( ordered_pair @ D @ C ) @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_relat_1) ).

thf(64,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_difference @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ~ ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_xboole_0) ).

thf(65,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( union @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ? [D: $i] :
              ( ( in @ C @ D )
              & ( in @ D @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_tarski) ).

thf(67,axiom,
    ! [A: $i] :
      ( ( relation @ A )
     => ! [B: $i] :
          ( ( B
            = ( relation_dom @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ? [D: $i] : ( in @ ( ordered_pair @ C @ D ) @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d4_relat_1) ).

thf(68,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_intersection2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_xboole_0) ).

thf(69,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

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

thf(71,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_union2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            | ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_xboole_0) ).

thf(72,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( unordered_pair @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( D = A )
            | ( D = B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_tarski) ).

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

thf(76,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( singleton @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( C = A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_tarski) ).

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

thf(108,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( disjoint @ A @ B )
          & ! [C: $i] :
              ~ ( ( in @ C @ A )
                & ( in @ C @ B ) ) )
      & ~ ( ? [C: $i] :
              ( ( in @ C @ A )
              & ( in @ C @ B ) )
          & ( disjoint @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_0) ).

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

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

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

thf(142,conjecture,
    ! [A: $i,B: $i,C: $i] :
      ( ( relation @ C )
     => ( ( in @ ( ordered_pair @ A @ B ) @ C )
       => ( ( in @ A @ ( relation_dom @ C ) )
          & ( in @ B @ ( relation_rng @ C ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t20_relat_1) ).

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

thf(144,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( relation @ C )
         => ( ( in @ ( ordered_pair @ A @ B ) @ C )
           => ( ( in @ A @ ( relation_dom @ C ) )
              & ( in @ B @ ( relation_rng @ C ) ) ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[143]) ).

thf(145,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(146,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(147,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(148,plain,
    ( ( ? [A: $i] :
          ( ( empty @ A )
          & ( relation @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[24]) ).

thf(149,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(150,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[38]) ).

thf(151,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[43]) ).

thf(152,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[44]) ).

thf(153,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[45]) ).

thf(154,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[46]) ).

thf(155,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[48]) ).

thf(156,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[49]) ).

thf(157,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[50]) ).

thf(158,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[52]) ).

thf(159,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[53]) ).

thf(160,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[54]) ).

thf(161,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[55]) ).

thf(162,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[56]) ).

thf(163,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[57]) ).

thf(164,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( B
                = ( relation_rng @ A ) )
            <=> ! [C: $i] :
                  ( ( in @ C @ B )
                <=> ? [D: $i] : ( in @ ( ordered_pair @ D @ C ) @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[63]) ).

thf(165,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_difference @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                & ~ ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[64]) ).

thf(166,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( union @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ? [D: $i] :
                  ( ( in @ C @ D )
                  & ( in @ D @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[65]) ).

thf(167,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( B
                = ( relation_dom @ A ) )
            <=> ! [C: $i] :
                  ( ( in @ C @ B )
                <=> ? [D: $i] : ( in @ ( ordered_pair @ C @ D ) @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[67]) ).

thf(168,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_intersection2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                & ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[68]) ).

thf(169,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[69]) ).

thf(170,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( cartesian_product2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ? [E: $i,F: $i] :
                  ( ( in @ E @ A )
                  & ( in @ F @ B )
                  & ( D
                    = ( ordered_pair @ E @ F ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[70]) ).

thf(171,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_union2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                | ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[71]) ).

thf(172,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( unordered_pair @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( D = A )
                | ( D = B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(173,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(174,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(175,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[83]) ).

thf(176,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( ~ ( disjoint @ A @ B )
              & ! [C: $i] :
                  ~ ( ( in @ C @ A )
                    & ( in @ C @ B ) ) )
          & ~ ( ? [C: $i] :
                  ( ( in @ C @ A )
                  & ( in @ C @ B ) )
              & ( disjoint @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[108]) ).

thf(177,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( ordered_pair @ A @ B )
            = ( ordered_pair @ C @ D ) )
         => ( ( A = C )
            & ( B = D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[115]) ).

thf(178,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[129]) ).

thf(179,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[131]) ).

thf(180,plain,
    ( ( ! [SY73: $i,SY74: $i] :
          ( ( relation @ SY74 )
         => ( ( in @ ( ordered_pair @ sK1_A @ SY73 ) @ SY74 )
           => ( ( in @ sK1_A @ ( relation_dom @ SY74 ) )
              & ( in @ SY73 @ ( relation_rng @ SY74 ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[144]) ).

thf(181,plain,
    ( ( ! [SY75: $i] :
          ( ( relation @ SY75 )
         => ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY73 ) @ SY75 )
           => ( ( in @ sK1_A @ ( relation_dom @ SY75 ) )
              & ( in @ sK2_SY73 @ ( relation_rng @ SY75 ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[180]) ).

thf(182,plain,
    ( ( ( relation @ sK3_SY75 )
     => ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY73 ) @ sK3_SY75 )
       => ( ( in @ sK1_A @ ( relation_dom @ sK3_SY75 ) )
          & ( in @ sK2_SY73 @ ( relation_rng @ sK3_SY75 ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[181]) ).

thf(183,plain,
    ( ( relation @ sK3_SY75 )
    = $true ),
    inference(standard_cnf,[status(thm)],[182]) ).

thf(184,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY73 ) @ sK3_SY75 )
    = $true ),
    inference(standard_cnf,[status(thm)],[182]) ).

thf(185,plain,
    ( ( ( in @ sK1_A @ ( relation_dom @ sK3_SY75 ) )
      & ( in @ sK2_SY73 @ ( relation_rng @ sK3_SY75 ) ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[182]) ).

thf(186,plain,
    ( ( in @ sK1_A @ ( relation_dom @ sK3_SY75 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[185]) ).

thf(187,plain,
    ( ( in @ sK2_SY73 @ ( relation_rng @ sK3_SY75 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[185]) ).

thf(188,plain,
    ( ( ~ ( in @ sK1_A @ ( relation_dom @ sK3_SY75 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[186]) ).

thf(189,plain,
    ( ( ~ ( in @ sK2_SY73 @ ( relation_rng @ sK3_SY75 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[187]) ).

thf(190,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[179]) ).

thf(191,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[178]) ).

thf(192,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( ordered_pair @ A @ B )
            = ( ordered_pair @ C @ D ) )
         => ( ( A = C )
            & ( B = D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[177]) ).

thf(193,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)],[176]) ).

thf(194,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[175]) ).

thf(195,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[174]) ).

thf(196,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[173]) ).

thf(197,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)],[172]) ).

thf(198,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)],[171]) ).

thf(199,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( cartesian_product2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ? [E: $i,F: $i] :
                  ( ( in @ E @ A )
                  & ( in @ F @ B )
                  & ( D
                    = ( ordered_pair @ E @ F ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(200,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[169]) ).

thf(201,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)],[168]) ).

thf(202,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( B
                = ( relation_dom @ A ) )
            <=> ! [C: $i] :
                  ( ( in @ C @ B )
                <=> ? [D: $i] : ( in @ ( ordered_pair @ C @ D ) @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[167]) ).

thf(203,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)],[166]) ).

thf(204,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_difference @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                & ~ ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(205,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( B
                = ( relation_rng @ A ) )
            <=> ! [C: $i] :
                  ( ( in @ C @ B )
                <=> ? [D: $i] : ( in @ ( ordered_pair @ D @ C ) @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[164]) ).

thf(206,plain,
    $true = $true,
    inference(copy,[status(thm)],[163]) ).

thf(207,plain,
    $true = $true,
    inference(copy,[status(thm)],[162]) ).

thf(208,plain,
    $true = $true,
    inference(copy,[status(thm)],[161]) ).

thf(209,plain,
    $true = $true,
    inference(copy,[status(thm)],[160]) ).

thf(210,plain,
    $true = $true,
    inference(copy,[status(thm)],[159]) ).

thf(211,plain,
    $true = $true,
    inference(copy,[status(thm)],[158]) ).

thf(212,plain,
    $true = $true,
    inference(copy,[status(thm)],[157]) ).

thf(213,plain,
    $true = $true,
    inference(copy,[status(thm)],[156]) ).

thf(214,plain,
    $true = $true,
    inference(copy,[status(thm)],[155]) ).

thf(215,plain,
    $true = $true,
    inference(copy,[status(thm)],[154]) ).

thf(216,plain,
    $true = $true,
    inference(copy,[status(thm)],[153]) ).

thf(217,plain,
    $true = $true,
    inference(copy,[status(thm)],[152]) ).

thf(218,plain,
    $true = $true,
    inference(copy,[status(thm)],[151]) ).

thf(219,plain,
    $true = $true,
    inference(copy,[status(thm)],[150]) ).

thf(220,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[149]) ).

thf(221,plain,
    ( ( ? [A: $i] :
          ( ( empty @ A )
          & ( relation @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[148]) ).

thf(222,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[147]) ).

thf(223,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[146]) ).

thf(224,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[145]) ).

thf(225,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY73 ) @ sK3_SY75 )
    = $true ),
    inference(copy,[status(thm)],[184]) ).

thf(226,plain,
    ( ( relation @ sK3_SY75 )
    = $true ),
    inference(copy,[status(thm)],[183]) ).

thf(227,plain,
    ( ( ~ ( in @ sK1_A @ ( relation_dom @ sK3_SY75 ) ) )
    = $true ),
    inference(copy,[status(thm)],[188]) ).

thf(228,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)],[198]) ).

thf(229,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ~ ( ~ ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                | ~ ( ~ ( in @ SX0 @ SX2 )
                    | ~ ( in @ SX1 @ SX3 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SX0 @ SX2 )
                      | ~ ( in @ SX1 @ SX3 ) )
                | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[191]) ).

thf(230,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)],[223]) ).

thf(231,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)],[196]) ).

thf(232,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)],[193]) ).

thf(233,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ~ ( ~ ( ( SX1
                     != ( relation_dom @ SX0 ) )
                    | ! [SX2: $i] :
                        ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                              | ~ ! [SX3: $i] :
                                    ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 ) )
                          | ~ ( ~ ~ ! [SX3: $i] :
                                      ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 )
                              | ( in @ SX2 @ SX1 ) ) ) )
                | ~ ( ~ ! [SX2: $i] :
                          ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                                | ~ ! [SX3: $i] :
                                      ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 ) )
                            | ~ ( ~ ~ ! [SX3: $i] :
                                        ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 )
                                | ( in @ SX2 @ SX1 ) ) )
                    | ( SX1
                      = ( relation_dom @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[202]) ).

thf(234,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)],[197]) ).

thf(235,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ~ ( ~ ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                | ~ ( ~ ( in @ SX0 @ SX2 )
                    | ~ ( in @ SX1 @ SX3 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SX0 @ SX2 )
                      | ~ ( in @ SX1 @ SX3 ) )
                | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[190]) ).

thf(236,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)],[203]) ).

thf(237,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)],[201]) ).

thf(238,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)],[200]) ).

thf(239,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( in @ SX0 @ SX1 )
              | ~ ( empty @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[224]) ).

thf(240,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( element @ SX0 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[222]) ).

thf(241,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[194]) ).

thf(242,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ( SX2
                 != ( cartesian_product2 @ SX0 @ SX1 ) )
                | ! [SX3: $i] :
                    ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                          | ~ ! [SX4: $i] :
                                ~ ~ ! [SX5: $i] :
                                      ~ ~ ( ~ ~ ( ~ ( in @ SX4 @ SX0 )
                                                | ~ ( in @ SX5 @ SX1 ) )
                                          | ( SX3
                                           != ( ordered_pair @ SX4 @ SX5 ) ) ) )
                      | ~ ( ~ ~ ! [SX4: $i] :
                                  ~ ~ ! [SX5: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SX4 @ SX0 )
                                                  | ~ ( in @ SX5 @ SX1 ) )
                                            | ( SX3
                                             != ( ordered_pair @ SX4 @ SX5 ) ) )
                          | ( in @ SX3 @ SX2 ) ) ) )
            | ~ ( ~ ! [SX3: $i] :
                      ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                            | ~ ! [SX4: $i] :
                                  ~ ~ ! [SX5: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SX4 @ SX0 )
                                                  | ~ ( in @ SX5 @ SX1 ) )
                                            | ( SX3
                                             != ( ordered_pair @ SX4 @ SX5 ) ) ) )
                        | ~ ( ~ ~ ! [SX4: $i] :
                                    ~ ~ ! [SX5: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SX4 @ SX0 )
                                                    | ~ ( in @ SX5 @ SX1 ) )
                                              | ( SX3
                                               != ( ordered_pair @ SX4 @ SX5 ) ) )
                            | ( in @ SX3 @ SX2 ) ) )
                | ( SX2
                  = ( cartesian_product2 @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[199]) ).

thf(243,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ( ( ordered_pair @ SX0 @ SX1 )
           != ( ordered_pair @ SX2 @ SX3 ) )
          | ~ ( ( SX0 != SX2 )
              | ( SX1 != SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[192]) ).

thf(244,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)],[195]) ).

thf(245,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)],[204]) ).

thf(246,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ~ ( ~ ( ( SX1
                     != ( relation_rng @ SX0 ) )
                    | ! [SX2: $i] :
                        ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                              | ~ ! [SX3: $i] :
                                    ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 ) )
                          | ~ ( ~ ~ ! [SX3: $i] :
                                      ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 )
                              | ( in @ SX2 @ SX1 ) ) ) )
                | ~ ( ~ ! [SX2: $i] :
                          ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                                | ~ ! [SX3: $i] :
                                      ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 ) )
                            | ~ ( ~ ~ ! [SX3: $i] :
                                        ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 )
                                | ( in @ SX2 @ SX1 ) ) )
                    | ( SX1
                      = ( relation_rng @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[205]) ).

thf(247,plain,
    ( ( ~ ! [SX0: $i] :
            ~ ~ ( ~ ( empty @ SX0 )
                | ~ ( relation @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[221]) ).

thf(248,plain,
    ! [SV1: $i] :
      ( ( ! [SY76: $i] :
            ~ ( empty @ ( ordered_pair @ SV1 @ SY76 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[220]) ).

thf(249,plain,
    ( ( in @ sK1_A @ ( relation_dom @ sK3_SY75 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[227]) ).

thf(250,plain,
    ! [SV2: $i] :
      ( ( ! [SY77: $i,SY78: $i] :
            ~ ( ~ ( ( SY78
                   != ( set_union2 @ SV2 @ SY77 ) )
                  | ! [SY79: $i] :
                      ~ ( ~ ( ~ ( in @ SY79 @ SY78 )
                            | ( in @ SY79 @ SV2 )
                            | ( in @ SY79 @ SY77 ) )
                        | ~ ( ~ ( ( in @ SY79 @ SV2 )
                                | ( in @ SY79 @ SY77 ) )
                            | ( in @ SY79 @ SY78 ) ) ) )
              | ~ ( ~ ! [SY80: $i] :
                        ~ ( ~ ( ~ ( in @ SY80 @ SY78 )
                              | ( in @ SY80 @ SV2 )
                              | ( in @ SY80 @ SY77 ) )
                          | ~ ( ~ ( ( in @ SY80 @ SV2 )
                                  | ( in @ SY80 @ SY77 ) )
                              | ( in @ SY80 @ SY78 ) ) )
                  | ( SY78
                    = ( set_union2 @ SV2 @ SY77 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[228]) ).

thf(251,plain,
    ! [SV3: $i] :
      ( ( ! [SY81: $i,SY82: $i,SY83: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV3 @ SY81 ) @ ( cartesian_product2 @ SY82 @ SY83 ) )
                  | ~ ( ~ ( in @ SV3 @ SY82 )
                      | ~ ( in @ SY81 @ SY83 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV3 @ SY82 )
                        | ~ ( in @ SY81 @ SY83 ) )
                  | ( in @ ( ordered_pair @ SV3 @ SY81 ) @ ( cartesian_product2 @ SY82 @ SY83 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[229]) ).

thf(252,plain,
    ! [SV4: $i] :
      ( ( ! [SY84: $i] :
            ( ~ ! [SY85: $i] :
                  ~ ( ~ ( ~ ( in @ SY85 @ SV4 )
                        | ( in @ SY85 @ SY84 ) )
                    | ~ ( ~ ( in @ SY85 @ SY84 )
                        | ( in @ SY85 @ SV4 ) ) )
            | ( SV4 = SY84 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[230]) ).

thf(253,plain,
    ! [SV5: $i] :
      ( ( ~ ( ~ ( ( SV5 != empty_set )
                | ! [SY86: $i] :
                    ~ ( in @ SY86 @ SV5 ) )
            | ~ ( ~ ! [SY87: $i] :
                      ~ ( in @ SY87 @ SV5 )
                | ( SV5 = empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[231]) ).

thf(254,plain,
    ! [SV6: $i] :
      ( ( ! [SY88: $i] :
            ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV6 @ SY88 )
                      | ~ ! [SY89: $i] :
                            ~ ~ ( ~ ( in @ SY89 @ SV6 )
                                | ~ ( in @ SY89 @ SY88 ) ) )
              | ~ ~ ~ ( ~ ~ ! [SY90: $i] :
                              ~ ~ ( ~ ( in @ SY90 @ SV6 )
                                  | ~ ( in @ SY90 @ SY88 ) )
                      | ~ ( disjoint @ SV6 @ SY88 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[232]) ).

thf(255,plain,
    ! [SV7: $i] :
      ( ( ~ ( relation @ SV7 )
        | ! [SY91: $i] :
            ~ ( ~ ( ( SY91
                   != ( relation_dom @ SV7 ) )
                  | ! [SY92: $i] :
                      ~ ( ~ ( ~ ( in @ SY92 @ SY91 )
                            | ~ ! [SY93: $i] :
                                  ~ ( in @ ( ordered_pair @ SY92 @ SY93 ) @ SV7 ) )
                        | ~ ( ~ ~ ! [SY94: $i] :
                                    ~ ( in @ ( ordered_pair @ SY92 @ SY94 ) @ SV7 )
                            | ( in @ SY92 @ SY91 ) ) ) )
              | ~ ( ~ ! [SY95: $i] :
                        ~ ( ~ ( ~ ( in @ SY95 @ SY91 )
                              | ~ ! [SY96: $i] :
                                    ~ ( in @ ( ordered_pair @ SY95 @ SY96 ) @ SV7 ) )
                          | ~ ( ~ ~ ! [SY97: $i] :
                                      ~ ( in @ ( ordered_pair @ SY95 @ SY97 ) @ SV7 )
                              | ( in @ SY95 @ SY91 ) ) )
                  | ( SY91
                    = ( relation_dom @ SV7 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[233]) ).

thf(256,plain,
    ! [SV8: $i] :
      ( ( ! [SY98: $i,SY99: $i] :
            ~ ( ~ ( ( SY99
                   != ( unordered_pair @ SV8 @ SY98 ) )
                  | ! [SY100: $i] :
                      ~ ( ~ ( ~ ( in @ SY100 @ SY99 )
                            | ( SY100 = SV8 )
                            | ( SY100 = SY98 ) )
                        | ~ ( ~ ( ( SY100 = SV8 )
                                | ( SY100 = SY98 ) )
                            | ( in @ SY100 @ SY99 ) ) ) )
              | ~ ( ~ ! [SY101: $i] :
                        ~ ( ~ ( ~ ( in @ SY101 @ SY99 )
                              | ( SY101 = SV8 )
                              | ( SY101 = SY98 ) )
                          | ~ ( ~ ( ( SY101 = SV8 )
                                  | ( SY101 = SY98 ) )
                              | ( in @ SY101 @ SY99 ) ) )
                  | ( SY99
                    = ( unordered_pair @ SV8 @ SY98 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[234]) ).

thf(257,plain,
    ! [SV9: $i] :
      ( ( ! [SY102: $i,SY103: $i,SY104: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV9 @ SY102 ) @ ( cartesian_product2 @ SY103 @ SY104 ) )
                  | ~ ( ~ ( in @ SV9 @ SY103 )
                      | ~ ( in @ SY102 @ SY104 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV9 @ SY103 )
                        | ~ ( in @ SY102 @ SY104 ) )
                  | ( in @ ( ordered_pair @ SV9 @ SY102 ) @ ( cartesian_product2 @ SY103 @ SY104 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[235]) ).

thf(258,plain,
    ! [SV10: $i] :
      ( ( ! [SY105: $i] :
            ~ ( ~ ( ( SY105
                   != ( union @ SV10 ) )
                  | ! [SY106: $i] :
                      ~ ( ~ ( ~ ( in @ SY106 @ SY105 )
                            | ~ ! [SY107: $i] :
                                  ~ ~ ( ~ ( in @ SY106 @ SY107 )
                                      | ~ ( in @ SY107 @ SV10 ) ) )
                        | ~ ( ~ ~ ! [SY108: $i] :
                                    ~ ~ ( ~ ( in @ SY106 @ SY108 )
                                        | ~ ( in @ SY108 @ SV10 ) )
                            | ( in @ SY106 @ SY105 ) ) ) )
              | ~ ( ~ ! [SY109: $i] :
                        ~ ( ~ ( ~ ( in @ SY109 @ SY105 )
                              | ~ ! [SY110: $i] :
                                    ~ ~ ( ~ ( in @ SY109 @ SY110 )
                                        | ~ ( in @ SY110 @ SV10 ) ) )
                          | ~ ( ~ ~ ! [SY111: $i] :
                                      ~ ~ ( ~ ( in @ SY109 @ SY111 )
                                          | ~ ( in @ SY111 @ SV10 ) )
                              | ( in @ SY109 @ SY105 ) ) )
                  | ( SY105
                    = ( union @ SV10 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[236]) ).

thf(259,plain,
    ! [SV11: $i] :
      ( ( ! [SY112: $i,SY113: $i] :
            ~ ( ~ ( ( SY113
                   != ( set_intersection2 @ SV11 @ SY112 ) )
                  | ! [SY114: $i] :
                      ~ ( ~ ( ~ ( in @ SY114 @ SY113 )
                            | ~ ( ~ ( in @ SY114 @ SV11 )
                                | ~ ( in @ SY114 @ SY112 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY114 @ SV11 )
                                  | ~ ( in @ SY114 @ SY112 ) )
                            | ( in @ SY114 @ SY113 ) ) ) )
              | ~ ( ~ ! [SY115: $i] :
                        ~ ( ~ ( ~ ( in @ SY115 @ SY113 )
                              | ~ ( ~ ( in @ SY115 @ SV11 )
                                  | ~ ( in @ SY115 @ SY112 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY115 @ SV11 )
                                    | ~ ( in @ SY115 @ SY112 ) )
                              | ( in @ SY115 @ SY113 ) ) )
                  | ( SY113
                    = ( set_intersection2 @ SV11 @ SY112 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[237]) ).

thf(260,plain,
    ! [SV12: $i] :
      ( ( ! [SY116: $i] :
            ~ ( ~ ( ~ ( subset @ SV12 @ SY116 )
                  | ! [SY117: $i] :
                      ( ~ ( in @ SY117 @ SV12 )
                      | ( in @ SY117 @ SY116 ) ) )
              | ~ ( ~ ! [SY118: $i] :
                        ( ~ ( in @ SY118 @ SV12 )
                        | ( in @ SY118 @ SY116 ) )
                  | ( subset @ SV12 @ SY116 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[238]) ).

thf(261,plain,
    ! [SV13: $i] :
      ( ( ! [SY119: $i] :
            ~ ~ ( ~ ( in @ SV13 @ SY119 )
                | ~ ( empty @ SY119 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[239]) ).

thf(262,plain,
    ! [SV14: $i] :
      ( ( ! [SY120: $i] :
            ( ~ ( in @ SV14 @ SY120 )
            | ( element @ SV14 @ SY120 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[240]) ).

thf(263,plain,
    ! [SV15: $i] :
      ( ( ! [SY121: $i] :
            ( ~ ( in @ SV15 @ SY121 )
            | ~ ( in @ SY121 @ SV15 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[241]) ).

thf(264,plain,
    ! [SV16: $i] :
      ( ( ! [SY122: $i,SY123: $i] :
            ~ ( ~ ( ( SY123
                   != ( cartesian_product2 @ SV16 @ SY122 ) )
                  | ! [SY124: $i] :
                      ~ ( ~ ( ~ ( in @ SY124 @ SY123 )
                            | ~ ! [SY125: $i] :
                                  ~ ~ ! [SY126: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SY125 @ SV16 )
                                                  | ~ ( in @ SY126 @ SY122 ) )
                                            | ( SY124
                                             != ( ordered_pair @ SY125 @ SY126 ) ) ) )
                        | ~ ( ~ ~ ! [SY127: $i] :
                                    ~ ~ ! [SY128: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY127 @ SV16 )
                                                    | ~ ( in @ SY128 @ SY122 ) )
                                              | ( SY124
                                               != ( ordered_pair @ SY127 @ SY128 ) ) )
                            | ( in @ SY124 @ SY123 ) ) ) )
              | ~ ( ~ ! [SY129: $i] :
                        ~ ( ~ ( ~ ( in @ SY129 @ SY123 )
                              | ~ ! [SY130: $i] :
                                    ~ ~ ! [SY131: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY130 @ SV16 )
                                                    | ~ ( in @ SY131 @ SY122 ) )
                                              | ( SY129
                                               != ( ordered_pair @ SY130 @ SY131 ) ) ) )
                          | ~ ( ~ ~ ! [SY132: $i] :
                                      ~ ~ ! [SY133: $i] :
                                            ~ ~ ( ~ ~ ( ~ ( in @ SY132 @ SV16 )
                                                      | ~ ( in @ SY133 @ SY122 ) )
                                                | ( SY129
                                                 != ( ordered_pair @ SY132 @ SY133 ) ) )
                              | ( in @ SY129 @ SY123 ) ) )
                  | ( SY123
                    = ( cartesian_product2 @ SV16 @ SY122 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[242]) ).

thf(265,plain,
    ! [SV17: $i] :
      ( ( ! [SY134: $i,SY135: $i,SY136: $i] :
            ( ( ( ordered_pair @ SV17 @ SY134 )
             != ( ordered_pair @ SY135 @ SY136 ) )
            | ~ ( ( SV17 != SY135 )
                | ( SY134 != SY136 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[243]) ).

thf(266,plain,
    ! [SV18: $i] :
      ( ( ! [SY137: $i] :
            ~ ( ~ ( ( SY137
                   != ( singleton @ SV18 ) )
                  | ! [SY138: $i] :
                      ~ ( ~ ( ~ ( in @ SY138 @ SY137 )
                            | ( SY138 = SV18 ) )
                        | ~ ( ( SY138 != SV18 )
                            | ( in @ SY138 @ SY137 ) ) ) )
              | ~ ( ~ ! [SY139: $i] :
                        ~ ( ~ ( ~ ( in @ SY139 @ SY137 )
                              | ( SY139 = SV18 ) )
                          | ~ ( ( SY139 != SV18 )
                              | ( in @ SY139 @ SY137 ) ) )
                  | ( SY137
                    = ( singleton @ SV18 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[244]) ).

thf(267,plain,
    ! [SV19: $i] :
      ( ( ! [SY140: $i,SY141: $i] :
            ~ ( ~ ( ( SY141
                   != ( set_difference @ SV19 @ SY140 ) )
                  | ! [SY142: $i] :
                      ~ ( ~ ( ~ ( in @ SY142 @ SY141 )
                            | ~ ( ~ ( in @ SY142 @ SV19 )
                                | ~ ~ ( in @ SY142 @ SY140 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY142 @ SV19 )
                                  | ~ ~ ( in @ SY142 @ SY140 ) )
                            | ( in @ SY142 @ SY141 ) ) ) )
              | ~ ( ~ ! [SY143: $i] :
                        ~ ( ~ ( ~ ( in @ SY143 @ SY141 )
                              | ~ ( ~ ( in @ SY143 @ SV19 )
                                  | ~ ~ ( in @ SY143 @ SY140 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY143 @ SV19 )
                                    | ~ ~ ( in @ SY143 @ SY140 ) )
                              | ( in @ SY143 @ SY141 ) ) )
                  | ( SY141
                    = ( set_difference @ SV19 @ SY140 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[245]) ).

thf(268,plain,
    ! [SV20: $i] :
      ( ( ~ ( relation @ SV20 )
        | ! [SY144: $i] :
            ~ ( ~ ( ( SY144
                   != ( relation_rng @ SV20 ) )
                  | ! [SY145: $i] :
                      ~ ( ~ ( ~ ( in @ SY145 @ SY144 )
                            | ~ ! [SY146: $i] :
                                  ~ ( in @ ( ordered_pair @ SY146 @ SY145 ) @ SV20 ) )
                        | ~ ( ~ ~ ! [SY147: $i] :
                                    ~ ( in @ ( ordered_pair @ SY147 @ SY145 ) @ SV20 )
                            | ( in @ SY145 @ SY144 ) ) ) )
              | ~ ( ~ ! [SY148: $i] :
                        ~ ( ~ ( ~ ( in @ SY148 @ SY144 )
                              | ~ ! [SY149: $i] :
                                    ~ ( in @ ( ordered_pair @ SY149 @ SY148 ) @ SV20 ) )
                          | ~ ( ~ ~ ! [SY150: $i] :
                                      ~ ( in @ ( ordered_pair @ SY150 @ SY148 ) @ SV20 )
                              | ( in @ SY148 @ SY144 ) ) )
                  | ( SY144
                    = ( relation_rng @ SV20 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[246]) ).

thf(269,plain,
    ( ( ! [SX0: $i] :
          ~ ~ ( ~ ( empty @ SX0 )
              | ~ ( relation @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[247]) ).

thf(270,plain,
    ! [SV21: $i,SV1: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV1 @ SV21 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[248]) ).

thf(271,plain,
    ! [SV22: $i,SV2: $i] :
      ( ( ! [SY151: $i] :
            ~ ( ~ ( ( SY151
                   != ( set_union2 @ SV2 @ SV22 ) )
                  | ! [SY152: $i] :
                      ~ ( ~ ( ~ ( in @ SY152 @ SY151 )
                            | ( in @ SY152 @ SV2 )
                            | ( in @ SY152 @ SV22 ) )
                        | ~ ( ~ ( ( in @ SY152 @ SV2 )
                                | ( in @ SY152 @ SV22 ) )
                            | ( in @ SY152 @ SY151 ) ) ) )
              | ~ ( ~ ! [SY153: $i] :
                        ~ ( ~ ( ~ ( in @ SY153 @ SY151 )
                              | ( in @ SY153 @ SV2 )
                              | ( in @ SY153 @ SV22 ) )
                          | ~ ( ~ ( ( in @ SY153 @ SV2 )
                                  | ( in @ SY153 @ SV22 ) )
                              | ( in @ SY153 @ SY151 ) ) )
                  | ( SY151
                    = ( set_union2 @ SV2 @ SV22 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[250]) ).

thf(272,plain,
    ! [SV23: $i,SV3: $i] :
      ( ( ! [SY154: $i,SY155: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SY154 @ SY155 ) )
                  | ~ ( ~ ( in @ SV3 @ SY154 )
                      | ~ ( in @ SV23 @ SY155 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV3 @ SY154 )
                        | ~ ( in @ SV23 @ SY155 ) )
                  | ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SY154 @ SY155 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[251]) ).

thf(273,plain,
    ! [SV24: $i,SV4: $i] :
      ( ( ~ ! [SY156: $i] :
              ~ ( ~ ( ~ ( in @ SY156 @ SV4 )
                    | ( in @ SY156 @ SV24 ) )
                | ~ ( ~ ( in @ SY156 @ SV24 )
                    | ( in @ SY156 @ SV4 ) ) )
        | ( SV4 = SV24 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[252]) ).

thf(274,plain,
    ! [SV5: $i] :
      ( ( ~ ( ( SV5 != empty_set )
            | ! [SY86: $i] :
                ~ ( in @ SY86 @ SV5 ) )
        | ~ ( ~ ! [SY87: $i] :
                  ~ ( in @ SY87 @ SV5 )
            | ( SV5 = empty_set ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[253]) ).

thf(275,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV6 @ SV25 )
                    | ~ ! [SY157: $i] :
                          ~ ~ ( ~ ( in @ SY157 @ SV6 )
                              | ~ ( in @ SY157 @ SV25 ) ) )
            | ~ ~ ~ ( ~ ~ ! [SY158: $i] :
                            ~ ~ ( ~ ( in @ SY158 @ SV6 )
                                | ~ ( in @ SY158 @ SV25 ) )
                    | ~ ( disjoint @ SV6 @ SV25 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[254]) ).

thf(276,plain,
    ! [SV7: $i] :
      ( ( ( ~ ( relation @ SV7 ) )
        = $true )
      | ( ( ! [SY91: $i] :
              ~ ( ~ ( ( SY91
                     != ( relation_dom @ SV7 ) )
                    | ! [SY92: $i] :
                        ~ ( ~ ( ~ ( in @ SY92 @ SY91 )
                              | ~ ! [SY93: $i] :
                                    ~ ( in @ ( ordered_pair @ SY92 @ SY93 ) @ SV7 ) )
                          | ~ ( ~ ~ ! [SY94: $i] :
                                      ~ ( in @ ( ordered_pair @ SY92 @ SY94 ) @ SV7 )
                              | ( in @ SY92 @ SY91 ) ) ) )
                | ~ ( ~ ! [SY95: $i] :
                          ~ ( ~ ( ~ ( in @ SY95 @ SY91 )
                                | ~ ! [SY96: $i] :
                                      ~ ( in @ ( ordered_pair @ SY95 @ SY96 ) @ SV7 ) )
                            | ~ ( ~ ~ ! [SY97: $i] :
                                        ~ ( in @ ( ordered_pair @ SY95 @ SY97 ) @ SV7 )
                                | ( in @ SY95 @ SY91 ) ) )
                    | ( SY91
                      = ( relation_dom @ SV7 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[255]) ).

thf(277,plain,
    ! [SV26: $i,SV8: $i] :
      ( ( ! [SY159: $i] :
            ~ ( ~ ( ( SY159
                   != ( unordered_pair @ SV8 @ SV26 ) )
                  | ! [SY160: $i] :
                      ~ ( ~ ( ~ ( in @ SY160 @ SY159 )
                            | ( SY160 = SV8 )
                            | ( SY160 = SV26 ) )
                        | ~ ( ~ ( ( SY160 = SV8 )
                                | ( SY160 = SV26 ) )
                            | ( in @ SY160 @ SY159 ) ) ) )
              | ~ ( ~ ! [SY161: $i] :
                        ~ ( ~ ( ~ ( in @ SY161 @ SY159 )
                              | ( SY161 = SV8 )
                              | ( SY161 = SV26 ) )
                          | ~ ( ~ ( ( SY161 = SV8 )
                                  | ( SY161 = SV26 ) )
                              | ( in @ SY161 @ SY159 ) ) )
                  | ( SY159
                    = ( unordered_pair @ SV8 @ SV26 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[256]) ).

thf(278,plain,
    ! [SV27: $i,SV9: $i] :
      ( ( ! [SY162: $i,SY163: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SY162 @ SY163 ) )
                  | ~ ( ~ ( in @ SV9 @ SY162 )
                      | ~ ( in @ SV27 @ SY163 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV9 @ SY162 )
                        | ~ ( in @ SV27 @ SY163 ) )
                  | ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SY162 @ SY163 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[257]) ).

thf(279,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ~ ( ~ ( ( SV28
                 != ( union @ SV10 ) )
                | ! [SY164: $i] :
                    ~ ( ~ ( ~ ( in @ SY164 @ SV28 )
                          | ~ ! [SY107: $i] :
                                ~ ~ ( ~ ( in @ SY164 @ SY107 )
                                    | ~ ( in @ SY107 @ SV10 ) ) )
                      | ~ ( ~ ~ ! [SY108: $i] :
                                  ~ ~ ( ~ ( in @ SY164 @ SY108 )
                                      | ~ ( in @ SY108 @ SV10 ) )
                          | ( in @ SY164 @ SV28 ) ) ) )
            | ~ ( ~ ! [SY167: $i] :
                      ~ ( ~ ( ~ ( in @ SY167 @ SV28 )
                            | ~ ! [SY110: $i] :
                                  ~ ~ ( ~ ( in @ SY167 @ SY110 )
                                      | ~ ( in @ SY110 @ SV10 ) ) )
                        | ~ ( ~ ~ ! [SY111: $i] :
                                    ~ ~ ( ~ ( in @ SY167 @ SY111 )
                                        | ~ ( in @ SY111 @ SV10 ) )
                            | ( in @ SY167 @ SV28 ) ) )
                | ( SV28
                  = ( union @ SV10 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[258]) ).

thf(280,plain,
    ! [SV29: $i,SV11: $i] :
      ( ( ! [SY170: $i] :
            ~ ( ~ ( ( SY170
                   != ( set_intersection2 @ SV11 @ SV29 ) )
                  | ! [SY171: $i] :
                      ~ ( ~ ( ~ ( in @ SY171 @ SY170 )
                            | ~ ( ~ ( in @ SY171 @ SV11 )
                                | ~ ( in @ SY171 @ SV29 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY171 @ SV11 )
                                  | ~ ( in @ SY171 @ SV29 ) )
                            | ( in @ SY171 @ SY170 ) ) ) )
              | ~ ( ~ ! [SY172: $i] :
                        ~ ( ~ ( ~ ( in @ SY172 @ SY170 )
                              | ~ ( ~ ( in @ SY172 @ SV11 )
                                  | ~ ( in @ SY172 @ SV29 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY172 @ SV11 )
                                    | ~ ( in @ SY172 @ SV29 ) )
                              | ( in @ SY172 @ SY170 ) ) )
                  | ( SY170
                    = ( set_intersection2 @ SV11 @ SV29 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[259]) ).

thf(281,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV12 @ SV30 )
                | ! [SY173: $i] :
                    ( ~ ( in @ SY173 @ SV12 )
                    | ( in @ SY173 @ SV30 ) ) )
            | ~ ( ~ ! [SY174: $i] :
                      ( ~ ( in @ SY174 @ SV12 )
                      | ( in @ SY174 @ SV30 ) )
                | ( subset @ SV12 @ SV30 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[260]) ).

thf(282,plain,
    ! [SV31: $i,SV13: $i] :
      ( ( ~ ~ ( ~ ( in @ SV13 @ SV31 )
              | ~ ( empty @ SV31 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[261]) ).

thf(283,plain,
    ! [SV32: $i,SV14: $i] :
      ( ( ~ ( in @ SV14 @ SV32 )
        | ( element @ SV14 @ SV32 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[262]) ).

thf(284,plain,
    ! [SV33: $i,SV15: $i] :
      ( ( ~ ( in @ SV15 @ SV33 )
        | ~ ( in @ SV33 @ SV15 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[263]) ).

thf(285,plain,
    ! [SV34: $i,SV16: $i] :
      ( ( ! [SY175: $i] :
            ~ ( ~ ( ( SY175
                   != ( cartesian_product2 @ SV16 @ SV34 ) )
                  | ! [SY176: $i] :
                      ~ ( ~ ( ~ ( in @ SY176 @ SY175 )
                            | ~ ! [SY177: $i] :
                                  ~ ~ ! [SY178: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SY177 @ SV16 )
                                                  | ~ ( in @ SY178 @ SV34 ) )
                                            | ( SY176
                                             != ( ordered_pair @ SY177 @ SY178 ) ) ) )
                        | ~ ( ~ ~ ! [SY179: $i] :
                                    ~ ~ ! [SY180: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY179 @ SV16 )
                                                    | ~ ( in @ SY180 @ SV34 ) )
                                              | ( SY176
                                               != ( ordered_pair @ SY179 @ SY180 ) ) )
                            | ( in @ SY176 @ SY175 ) ) ) )
              | ~ ( ~ ! [SY181: $i] :
                        ~ ( ~ ( ~ ( in @ SY181 @ SY175 )
                              | ~ ! [SY182: $i] :
                                    ~ ~ ! [SY183: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY182 @ SV16 )
                                                    | ~ ( in @ SY183 @ SV34 ) )
                                              | ( SY181
                                               != ( ordered_pair @ SY182 @ SY183 ) ) ) )
                          | ~ ( ~ ~ ! [SY184: $i] :
                                      ~ ~ ! [SY185: $i] :
                                            ~ ~ ( ~ ~ ( ~ ( in @ SY184 @ SV16 )
                                                      | ~ ( in @ SY185 @ SV34 ) )
                                                | ( SY181
                                                 != ( ordered_pair @ SY184 @ SY185 ) ) )
                              | ( in @ SY181 @ SY175 ) ) )
                  | ( SY175
                    = ( cartesian_product2 @ SV16 @ SV34 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[264]) ).

thf(286,plain,
    ! [SV35: $i,SV17: $i] :
      ( ( ! [SY186: $i,SY187: $i] :
            ( ( ( ordered_pair @ SV17 @ SV35 )
             != ( ordered_pair @ SY186 @ SY187 ) )
            | ~ ( ( SV17 != SY186 )
                | ( SV35 != SY187 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[265]) ).

thf(287,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ~ ( ~ ( ( SV36
                 != ( singleton @ SV18 ) )
                | ! [SY188: $i] :
                    ~ ( ~ ( ~ ( in @ SY188 @ SV36 )
                          | ( SY188 = SV18 ) )
                      | ~ ( ( SY188 != SV18 )
                          | ( in @ SY188 @ SV36 ) ) ) )
            | ~ ( ~ ! [SY189: $i] :
                      ~ ( ~ ( ~ ( in @ SY189 @ SV36 )
                            | ( SY189 = SV18 ) )
                        | ~ ( ( SY189 != SV18 )
                            | ( in @ SY189 @ SV36 ) ) )
                | ( SV36
                  = ( singleton @ SV18 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[266]) ).

thf(288,plain,
    ! [SV37: $i,SV19: $i] :
      ( ( ! [SY190: $i] :
            ~ ( ~ ( ( SY190
                   != ( set_difference @ SV19 @ SV37 ) )
                  | ! [SY191: $i] :
                      ~ ( ~ ( ~ ( in @ SY191 @ SY190 )
                            | ~ ( ~ ( in @ SY191 @ SV19 )
                                | ~ ~ ( in @ SY191 @ SV37 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY191 @ SV19 )
                                  | ~ ~ ( in @ SY191 @ SV37 ) )
                            | ( in @ SY191 @ SY190 ) ) ) )
              | ~ ( ~ ! [SY192: $i] :
                        ~ ( ~ ( ~ ( in @ SY192 @ SY190 )
                              | ~ ( ~ ( in @ SY192 @ SV19 )
                                  | ~ ~ ( in @ SY192 @ SV37 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY192 @ SV19 )
                                    | ~ ~ ( in @ SY192 @ SV37 ) )
                              | ( in @ SY192 @ SY190 ) ) )
                  | ( SY190
                    = ( set_difference @ SV19 @ SV37 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[267]) ).

thf(289,plain,
    ! [SV20: $i] :
      ( ( ( ~ ( relation @ SV20 ) )
        = $true )
      | ( ( ! [SY144: $i] :
              ~ ( ~ ( ( SY144
                     != ( relation_rng @ SV20 ) )
                    | ! [SY145: $i] :
                        ~ ( ~ ( ~ ( in @ SY145 @ SY144 )
                              | ~ ! [SY146: $i] :
                                    ~ ( in @ ( ordered_pair @ SY146 @ SY145 ) @ SV20 ) )
                          | ~ ( ~ ~ ! [SY147: $i] :
                                      ~ ( in @ ( ordered_pair @ SY147 @ SY145 ) @ SV20 )
                              | ( in @ SY145 @ SY144 ) ) ) )
                | ~ ( ~ ! [SY148: $i] :
                          ~ ( ~ ( ~ ( in @ SY148 @ SY144 )
                                | ~ ! [SY149: $i] :
                                      ~ ( in @ ( ordered_pair @ SY149 @ SY148 ) @ SV20 ) )
                            | ~ ( ~ ~ ! [SY150: $i] :
                                        ~ ( in @ ( ordered_pair @ SY150 @ SY148 ) @ SV20 )
                                | ( in @ SY148 @ SY144 ) ) )
                    | ( SY144
                      = ( relation_rng @ SV20 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[268]) ).

thf(290,plain,
    ( ( ~ ~ ( ~ ( empty @ sK4_SX0 )
            | ~ ( relation @ sK4_SX0 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[269]) ).

thf(291,plain,
    ! [SV21: $i,SV1: $i] :
      ( ( empty @ ( ordered_pair @ SV1 @ SV21 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[270]) ).

thf(292,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ~ ( ~ ( ( SV38
                 != ( set_union2 @ SV2 @ SV22 ) )
                | ! [SY193: $i] :
                    ~ ( ~ ( ~ ( in @ SY193 @ SV38 )
                          | ( in @ SY193 @ SV2 )
                          | ( in @ SY193 @ SV22 ) )
                      | ~ ( ~ ( ( in @ SY193 @ SV2 )
                              | ( in @ SY193 @ SV22 ) )
                          | ( in @ SY193 @ SV38 ) ) ) )
            | ~ ( ~ ! [SY194: $i] :
                      ~ ( ~ ( ~ ( in @ SY194 @ SV38 )
                            | ( in @ SY194 @ SV2 )
                            | ( in @ SY194 @ SV22 ) )
                        | ~ ( ~ ( ( in @ SY194 @ SV2 )
                                | ( in @ SY194 @ SV22 ) )
                            | ( in @ SY194 @ SV38 ) ) )
                | ( SV38
                  = ( set_union2 @ SV2 @ SV22 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[271]) ).

thf(293,plain,
    ! [SV39: $i,SV23: $i,SV3: $i] :
      ( ( ! [SY195: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SY195 ) )
                  | ~ ( ~ ( in @ SV3 @ SV39 )
                      | ~ ( in @ SV23 @ SY195 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV3 @ SV39 )
                        | ~ ( in @ SV23 @ SY195 ) )
                  | ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SY195 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[272]) ).

thf(294,plain,
    ! [SV24: $i,SV4: $i] :
      ( ( ( ~ ! [SY156: $i] :
                ~ ( ~ ( ~ ( in @ SY156 @ SV4 )
                      | ( in @ SY156 @ SV24 ) )
                  | ~ ( ~ ( in @ SY156 @ SV24 )
                      | ( in @ SY156 @ SV4 ) ) ) )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[273]) ).

thf(295,plain,
    ! [SV5: $i] :
      ( ( ~ ( ( SV5 != empty_set )
            | ! [SY86: $i] :
                ~ ( in @ SY86 @ SV5 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[274]) ).

thf(296,plain,
    ! [SV5: $i] :
      ( ( ~ ( ~ ! [SY87: $i] :
                  ~ ( in @ SY87 @ SV5 )
            | ( SV5 = empty_set ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[274]) ).

thf(297,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV6 @ SV25 )
                | ~ ! [SY157: $i] :
                      ~ ~ ( ~ ( in @ SY157 @ SV6 )
                          | ~ ( in @ SY157 @ SV25 ) ) )
        | ~ ~ ~ ( ~ ~ ! [SY158: $i] :
                        ~ ~ ( ~ ( in @ SY158 @ SV6 )
                            | ~ ( in @ SY158 @ SV25 ) )
                | ~ ( disjoint @ SV6 @ SV25 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[275]) ).

thf(298,plain,
    ! [SV7: $i] :
      ( ( ( relation @ SV7 )
        = $false )
      | ( ( ! [SY91: $i] :
              ~ ( ~ ( ( SY91
                     != ( relation_dom @ SV7 ) )
                    | ! [SY92: $i] :
                        ~ ( ~ ( ~ ( in @ SY92 @ SY91 )
                              | ~ ! [SY93: $i] :
                                    ~ ( in @ ( ordered_pair @ SY92 @ SY93 ) @ SV7 ) )
                          | ~ ( ~ ~ ! [SY94: $i] :
                                      ~ ( in @ ( ordered_pair @ SY92 @ SY94 ) @ SV7 )
                              | ( in @ SY92 @ SY91 ) ) ) )
                | ~ ( ~ ! [SY95: $i] :
                          ~ ( ~ ( ~ ( in @ SY95 @ SY91 )
                                | ~ ! [SY96: $i] :
                                      ~ ( in @ ( ordered_pair @ SY95 @ SY96 ) @ SV7 ) )
                            | ~ ( ~ ~ ! [SY97: $i] :
                                        ~ ( in @ ( ordered_pair @ SY95 @ SY97 ) @ SV7 )
                                | ( in @ SY95 @ SY91 ) ) )
                    | ( SY91
                      = ( relation_dom @ SV7 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[276]) ).

thf(299,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ~ ( ~ ( ( SV40
                 != ( unordered_pair @ SV8 @ SV26 ) )
                | ! [SY196: $i] :
                    ~ ( ~ ( ~ ( in @ SY196 @ SV40 )
                          | ( SY196 = SV8 )
                          | ( SY196 = SV26 ) )
                      | ~ ( ~ ( ( SY196 = SV8 )
                              | ( SY196 = SV26 ) )
                          | ( in @ SY196 @ SV40 ) ) ) )
            | ~ ( ~ ! [SY197: $i] :
                      ~ ( ~ ( ~ ( in @ SY197 @ SV40 )
                            | ( SY197 = SV8 )
                            | ( SY197 = SV26 ) )
                        | ~ ( ~ ( ( SY197 = SV8 )
                                | ( SY197 = SV26 ) )
                            | ( in @ SY197 @ SV40 ) ) )
                | ( SV40
                  = ( unordered_pair @ SV8 @ SV26 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[277]) ).

thf(300,plain,
    ! [SV41: $i,SV27: $i,SV9: $i] :
      ( ( ! [SY198: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SY198 ) )
                  | ~ ( ~ ( in @ SV9 @ SV41 )
                      | ~ ( in @ SV27 @ SY198 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV9 @ SV41 )
                        | ~ ( in @ SV27 @ SY198 ) )
                  | ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SY198 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[278]) ).

thf(301,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ~ ( ( SV28
             != ( union @ SV10 ) )
            | ! [SY164: $i] :
                ~ ( ~ ( ~ ( in @ SY164 @ SV28 )
                      | ~ ! [SY107: $i] :
                            ~ ~ ( ~ ( in @ SY164 @ SY107 )
                                | ~ ( in @ SY107 @ SV10 ) ) )
                  | ~ ( ~ ~ ! [SY108: $i] :
                              ~ ~ ( ~ ( in @ SY164 @ SY108 )
                                  | ~ ( in @ SY108 @ SV10 ) )
                      | ( in @ SY164 @ SV28 ) ) ) )
        | ~ ( ~ ! [SY167: $i] :
                  ~ ( ~ ( ~ ( in @ SY167 @ SV28 )
                        | ~ ! [SY110: $i] :
                              ~ ~ ( ~ ( in @ SY167 @ SY110 )
                                  | ~ ( in @ SY110 @ SV10 ) ) )
                    | ~ ( ~ ~ ! [SY111: $i] :
                                ~ ~ ( ~ ( in @ SY167 @ SY111 )
                                    | ~ ( in @ SY111 @ SV10 ) )
                        | ( in @ SY167 @ SV28 ) ) )
            | ( SV28
              = ( union @ SV10 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[279]) ).

thf(302,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ~ ( ~ ( ( SV42
                 != ( set_intersection2 @ SV11 @ SV29 ) )
                | ! [SY199: $i] :
                    ~ ( ~ ( ~ ( in @ SY199 @ SV42 )
                          | ~ ( ~ ( in @ SY199 @ SV11 )
                              | ~ ( in @ SY199 @ SV29 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY199 @ SV11 )
                                | ~ ( in @ SY199 @ SV29 ) )
                          | ( in @ SY199 @ SV42 ) ) ) )
            | ~ ( ~ ! [SY200: $i] :
                      ~ ( ~ ( ~ ( in @ SY200 @ SV42 )
                            | ~ ( ~ ( in @ SY200 @ SV11 )
                                | ~ ( in @ SY200 @ SV29 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY200 @ SV11 )
                                  | ~ ( in @ SY200 @ SV29 ) )
                            | ( in @ SY200 @ SV42 ) ) )
                | ( SV42
                  = ( set_intersection2 @ SV11 @ SV29 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[280]) ).

thf(303,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ~ ( ~ ( subset @ SV12 @ SV30 )
            | ! [SY173: $i] :
                ( ~ ( in @ SY173 @ SV12 )
                | ( in @ SY173 @ SV30 ) ) )
        | ~ ( ~ ! [SY174: $i] :
                  ( ~ ( in @ SY174 @ SV12 )
                  | ( in @ SY174 @ SV30 ) )
            | ( subset @ SV12 @ SV30 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[281]) ).

thf(304,plain,
    ! [SV31: $i,SV13: $i] :
      ( ( ~ ( ~ ( in @ SV13 @ SV31 )
            | ~ ( empty @ SV31 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[282]) ).

thf(305,plain,
    ! [SV32: $i,SV14: $i] :
      ( ( ( ~ ( in @ SV14 @ SV32 ) )
        = $true )
      | ( ( element @ SV14 @ SV32 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[283]) ).

thf(306,plain,
    ! [SV33: $i,SV15: $i] :
      ( ( ( ~ ( in @ SV15 @ SV33 ) )
        = $true )
      | ( ( ~ ( in @ SV33 @ SV15 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[284]) ).

thf(307,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ~ ( ~ ( ( SV43
                 != ( cartesian_product2 @ SV16 @ SV34 ) )
                | ! [SY201: $i] :
                    ~ ( ~ ( ~ ( in @ SY201 @ SV43 )
                          | ~ ! [SY177: $i] :
                                ~ ~ ! [SY178: $i] :
                                      ~ ~ ( ~ ~ ( ~ ( in @ SY177 @ SV16 )
                                                | ~ ( in @ SY178 @ SV34 ) )
                                          | ( SY201
                                           != ( ordered_pair @ SY177 @ SY178 ) ) ) )
                      | ~ ( ~ ~ ! [SY179: $i] :
                                  ~ ~ ! [SY180: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SY179 @ SV16 )
                                                  | ~ ( in @ SY180 @ SV34 ) )
                                            | ( SY201
                                             != ( ordered_pair @ SY179 @ SY180 ) ) )
                          | ( in @ SY201 @ SV43 ) ) ) )
            | ~ ( ~ ! [SY206: $i] :
                      ~ ( ~ ( ~ ( in @ SY206 @ SV43 )
                            | ~ ! [SY182: $i] :
                                  ~ ~ ! [SY183: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SY182 @ SV16 )
                                                  | ~ ( in @ SY183 @ SV34 ) )
                                            | ( SY206
                                             != ( ordered_pair @ SY182 @ SY183 ) ) ) )
                        | ~ ( ~ ~ ! [SY184: $i] :
                                    ~ ~ ! [SY185: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY184 @ SV16 )
                                                    | ~ ( in @ SY185 @ SV34 ) )
                                              | ( SY206
                                               != ( ordered_pair @ SY184 @ SY185 ) ) )
                            | ( in @ SY206 @ SV43 ) ) )
                | ( SV43
                  = ( cartesian_product2 @ SV16 @ SV34 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[285]) ).

thf(308,plain,
    ! [SV44: $i,SV35: $i,SV17: $i] :
      ( ( ! [SY211: $i] :
            ( ( ( ordered_pair @ SV17 @ SV35 )
             != ( ordered_pair @ SV44 @ SY211 ) )
            | ~ ( ( SV17 != SV44 )
                | ( SV35 != SY211 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[286]) ).

thf(309,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ~ ( ( SV36
             != ( singleton @ SV18 ) )
            | ! [SY188: $i] :
                ~ ( ~ ( ~ ( in @ SY188 @ SV36 )
                      | ( SY188 = SV18 ) )
                  | ~ ( ( SY188 != SV18 )
                      | ( in @ SY188 @ SV36 ) ) ) )
        | ~ ( ~ ! [SY189: $i] :
                  ~ ( ~ ( ~ ( in @ SY189 @ SV36 )
                        | ( SY189 = SV18 ) )
                    | ~ ( ( SY189 != SV18 )
                        | ( in @ SY189 @ SV36 ) ) )
            | ( SV36
              = ( singleton @ SV18 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[287]) ).

thf(310,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ~ ( ~ ( ( SV45
                 != ( set_difference @ SV19 @ SV37 ) )
                | ! [SY212: $i] :
                    ~ ( ~ ( ~ ( in @ SY212 @ SV45 )
                          | ~ ( ~ ( in @ SY212 @ SV19 )
                              | ~ ~ ( in @ SY212 @ SV37 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY212 @ SV19 )
                                | ~ ~ ( in @ SY212 @ SV37 ) )
                          | ( in @ SY212 @ SV45 ) ) ) )
            | ~ ( ~ ! [SY213: $i] :
                      ~ ( ~ ( ~ ( in @ SY213 @ SV45 )
                            | ~ ( ~ ( in @ SY213 @ SV19 )
                                | ~ ~ ( in @ SY213 @ SV37 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY213 @ SV19 )
                                  | ~ ~ ( in @ SY213 @ SV37 ) )
                            | ( in @ SY213 @ SV45 ) ) )
                | ( SV45
                  = ( set_difference @ SV19 @ SV37 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[288]) ).

thf(311,plain,
    ! [SV20: $i] :
      ( ( ( relation @ SV20 )
        = $false )
      | ( ( ! [SY144: $i] :
              ~ ( ~ ( ( SY144
                     != ( relation_rng @ SV20 ) )
                    | ! [SY145: $i] :
                        ~ ( ~ ( ~ ( in @ SY145 @ SY144 )
                              | ~ ! [SY146: $i] :
                                    ~ ( in @ ( ordered_pair @ SY146 @ SY145 ) @ SV20 ) )
                          | ~ ( ~ ~ ! [SY147: $i] :
                                      ~ ( in @ ( ordered_pair @ SY147 @ SY145 ) @ SV20 )
                              | ( in @ SY145 @ SY144 ) ) ) )
                | ~ ( ~ ! [SY148: $i] :
                          ~ ( ~ ( ~ ( in @ SY148 @ SY144 )
                                | ~ ! [SY149: $i] :
                                      ~ ( in @ ( ordered_pair @ SY149 @ SY148 ) @ SV20 ) )
                            | ~ ( ~ ~ ! [SY150: $i] :
                                        ~ ( in @ ( ordered_pair @ SY150 @ SY148 ) @ SV20 )
                                | ( in @ SY148 @ SY144 ) ) )
                    | ( SY144
                      = ( relation_rng @ SV20 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[289]) ).

thf(312,plain,
    ( ( ~ ( ~ ( empty @ sK4_SX0 )
          | ~ ( relation @ sK4_SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[290]) ).

thf(313,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ~ ( ( SV38
             != ( set_union2 @ SV2 @ SV22 ) )
            | ! [SY193: $i] :
                ~ ( ~ ( ~ ( in @ SY193 @ SV38 )
                      | ( in @ SY193 @ SV2 )
                      | ( in @ SY193 @ SV22 ) )
                  | ~ ( ~ ( ( in @ SY193 @ SV2 )
                          | ( in @ SY193 @ SV22 ) )
                      | ( in @ SY193 @ SV38 ) ) ) )
        | ~ ( ~ ! [SY194: $i] :
                  ~ ( ~ ( ~ ( in @ SY194 @ SV38 )
                        | ( in @ SY194 @ SV2 )
                        | ( in @ SY194 @ SV22 ) )
                    | ~ ( ~ ( ( in @ SY194 @ SV2 )
                            | ( in @ SY194 @ SV22 ) )
                        | ( in @ SY194 @ SV38 ) ) )
            | ( SV38
              = ( set_union2 @ SV2 @ SV22 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[292]) ).

thf(314,plain,
    ! [SV46: $i,SV39: $i,SV23: $i,SV3: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
                | ~ ( ~ ( in @ SV3 @ SV39 )
                    | ~ ( in @ SV23 @ SV46 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SV3 @ SV39 )
                      | ~ ( in @ SV23 @ SV46 ) )
                | ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[293]) ).

thf(315,plain,
    ! [SV24: $i,SV4: $i] :
      ( ( ( ! [SY156: $i] :
              ~ ( ~ ( ~ ( in @ SY156 @ SV4 )
                    | ( in @ SY156 @ SV24 ) )
                | ~ ( ~ ( in @ SY156 @ SV24 )
                    | ( in @ SY156 @ SV4 ) ) ) )
        = $false )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[294]) ).

thf(316,plain,
    ! [SV5: $i] :
      ( ( ( SV5 != empty_set )
        | ! [SY86: $i] :
            ~ ( in @ SY86 @ SV5 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[295]) ).

thf(317,plain,
    ! [SV5: $i] :
      ( ( ~ ! [SY87: $i] :
              ~ ( in @ SY87 @ SV5 )
        | ( SV5 = empty_set ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[296]) ).

thf(318,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV6 @ SV25 )
                | ~ ! [SY157: $i] :
                      ~ ~ ( ~ ( in @ SY157 @ SV6 )
                          | ~ ( in @ SY157 @ SV25 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[297]) ).

thf(319,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ~ ~ ( ~ ~ ! [SY158: $i] :
                        ~ ~ ( ~ ( in @ SY158 @ SV6 )
                            | ~ ( in @ SY158 @ SV25 ) )
                | ~ ( disjoint @ SV6 @ SV25 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[297]) ).

thf(320,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( ~ ( ~ ( ( SV47
                   != ( relation_dom @ SV7 ) )
                  | ! [SY214: $i] :
                      ~ ( ~ ( ~ ( in @ SY214 @ SV47 )
                            | ~ ! [SY93: $i] :
                                  ~ ( in @ ( ordered_pair @ SY214 @ SY93 ) @ SV7 ) )
                        | ~ ( ~ ~ ! [SY94: $i] :
                                    ~ ( in @ ( ordered_pair @ SY214 @ SY94 ) @ SV7 )
                            | ( in @ SY214 @ SV47 ) ) ) )
              | ~ ( ~ ! [SY217: $i] :
                        ~ ( ~ ( ~ ( in @ SY217 @ SV47 )
                              | ~ ! [SY96: $i] :
                                    ~ ( in @ ( ordered_pair @ SY217 @ SY96 ) @ SV7 ) )
                          | ~ ( ~ ~ ! [SY97: $i] :
                                      ~ ( in @ ( ordered_pair @ SY217 @ SY97 ) @ SV7 )
                              | ( in @ SY217 @ SV47 ) ) )
                  | ( SV47
                    = ( relation_dom @ SV7 ) ) ) ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[298]) ).

thf(321,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ~ ( ( SV40
             != ( unordered_pair @ SV8 @ SV26 ) )
            | ! [SY196: $i] :
                ~ ( ~ ( ~ ( in @ SY196 @ SV40 )
                      | ( SY196 = SV8 )
                      | ( SY196 = SV26 ) )
                  | ~ ( ~ ( ( SY196 = SV8 )
                          | ( SY196 = SV26 ) )
                      | ( in @ SY196 @ SV40 ) ) ) )
        | ~ ( ~ ! [SY197: $i] :
                  ~ ( ~ ( ~ ( in @ SY197 @ SV40 )
                        | ( SY197 = SV8 )
                        | ( SY197 = SV26 ) )
                    | ~ ( ~ ( ( SY197 = SV8 )
                            | ( SY197 = SV26 ) )
                        | ( in @ SY197 @ SV40 ) ) )
            | ( SV40
              = ( unordered_pair @ SV8 @ SV26 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[299]) ).

thf(322,plain,
    ! [SV48: $i,SV41: $i,SV27: $i,SV9: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
                | ~ ( ~ ( in @ SV9 @ SV41 )
                    | ~ ( in @ SV27 @ SV48 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SV9 @ SV41 )
                      | ~ ( in @ SV27 @ SV48 ) )
                | ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[300]) ).

thf(323,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ~ ( ( SV28
             != ( union @ SV10 ) )
            | ! [SY164: $i] :
                ~ ( ~ ( ~ ( in @ SY164 @ SV28 )
                      | ~ ! [SY107: $i] :
                            ~ ~ ( ~ ( in @ SY164 @ SY107 )
                                | ~ ( in @ SY107 @ SV10 ) ) )
                  | ~ ( ~ ~ ! [SY108: $i] :
                              ~ ~ ( ~ ( in @ SY164 @ SY108 )
                                  | ~ ( in @ SY108 @ SV10 ) )
                      | ( in @ SY164 @ SV28 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[301]) ).

thf(324,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ~ ( ~ ! [SY167: $i] :
                  ~ ( ~ ( ~ ( in @ SY167 @ SV28 )
                        | ~ ! [SY110: $i] :
                              ~ ~ ( ~ ( in @ SY167 @ SY110 )
                                  | ~ ( in @ SY110 @ SV10 ) ) )
                    | ~ ( ~ ~ ! [SY111: $i] :
                                ~ ~ ( ~ ( in @ SY167 @ SY111 )
                                    | ~ ( in @ SY111 @ SV10 ) )
                        | ( in @ SY167 @ SV28 ) ) )
            | ( SV28
              = ( union @ SV10 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[301]) ).

thf(325,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ~ ( ( SV42
             != ( set_intersection2 @ SV11 @ SV29 ) )
            | ! [SY199: $i] :
                ~ ( ~ ( ~ ( in @ SY199 @ SV42 )
                      | ~ ( ~ ( in @ SY199 @ SV11 )
                          | ~ ( in @ SY199 @ SV29 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY199 @ SV11 )
                            | ~ ( in @ SY199 @ SV29 ) )
                      | ( in @ SY199 @ SV42 ) ) ) )
        | ~ ( ~ ! [SY200: $i] :
                  ~ ( ~ ( ~ ( in @ SY200 @ SV42 )
                        | ~ ( ~ ( in @ SY200 @ SV11 )
                            | ~ ( in @ SY200 @ SV29 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY200 @ SV11 )
                              | ~ ( in @ SY200 @ SV29 ) )
                        | ( in @ SY200 @ SV42 ) ) )
            | ( SV42
              = ( set_intersection2 @ SV11 @ SV29 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[302]) ).

thf(326,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ~ ( ~ ( subset @ SV12 @ SV30 )
            | ! [SY173: $i] :
                ( ~ ( in @ SY173 @ SV12 )
                | ( in @ SY173 @ SV30 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[303]) ).

thf(327,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ~ ( ~ ! [SY174: $i] :
                  ( ~ ( in @ SY174 @ SV12 )
                  | ( in @ SY174 @ SV30 ) )
            | ( subset @ SV12 @ SV30 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[303]) ).

thf(328,plain,
    ! [SV31: $i,SV13: $i] :
      ( ( ~ ( in @ SV13 @ SV31 )
        | ~ ( empty @ SV31 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[304]) ).

thf(329,plain,
    ! [SV32: $i,SV14: $i] :
      ( ( ( in @ SV14 @ SV32 )
        = $false )
      | ( ( element @ SV14 @ SV32 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[305]) ).

thf(330,plain,
    ! [SV33: $i,SV15: $i] :
      ( ( ( in @ SV15 @ SV33 )
        = $false )
      | ( ( ~ ( in @ SV33 @ SV15 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[306]) ).

thf(331,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ~ ( ( SV43
             != ( cartesian_product2 @ SV16 @ SV34 ) )
            | ! [SY201: $i] :
                ~ ( ~ ( ~ ( in @ SY201 @ SV43 )
                      | ~ ! [SY177: $i] :
                            ~ ~ ! [SY178: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY177 @ SV16 )
                                            | ~ ( in @ SY178 @ SV34 ) )
                                      | ( SY201
                                       != ( ordered_pair @ SY177 @ SY178 ) ) ) )
                  | ~ ( ~ ~ ! [SY179: $i] :
                              ~ ~ ! [SY180: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY179 @ SV16 )
                                              | ~ ( in @ SY180 @ SV34 ) )
                                        | ( SY201
                                         != ( ordered_pair @ SY179 @ SY180 ) ) )
                      | ( in @ SY201 @ SV43 ) ) ) )
        | ~ ( ~ ! [SY206: $i] :
                  ~ ( ~ ( ~ ( in @ SY206 @ SV43 )
                        | ~ ! [SY182: $i] :
                              ~ ~ ! [SY183: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY182 @ SV16 )
                                              | ~ ( in @ SY183 @ SV34 ) )
                                        | ( SY206
                                         != ( ordered_pair @ SY182 @ SY183 ) ) ) )
                    | ~ ( ~ ~ ! [SY184: $i] :
                                ~ ~ ! [SY185: $i] :
                                      ~ ~ ( ~ ~ ( ~ ( in @ SY184 @ SV16 )
                                                | ~ ( in @ SY185 @ SV34 ) )
                                          | ( SY206
                                           != ( ordered_pair @ SY184 @ SY185 ) ) )
                        | ( in @ SY206 @ SV43 ) ) )
            | ( SV43
              = ( cartesian_product2 @ SV16 @ SV34 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[307]) ).

thf(332,plain,
    ! [SV49: $i,SV44: $i,SV35: $i,SV17: $i] :
      ( ( ( ( ordered_pair @ SV17 @ SV35 )
         != ( ordered_pair @ SV44 @ SV49 ) )
        | ~ ( ( SV17 != SV44 )
            | ( SV35 != SV49 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[308]) ).

thf(333,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ~ ( ( SV36
             != ( singleton @ SV18 ) )
            | ! [SY188: $i] :
                ~ ( ~ ( ~ ( in @ SY188 @ SV36 )
                      | ( SY188 = SV18 ) )
                  | ~ ( ( SY188 != SV18 )
                      | ( in @ SY188 @ SV36 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[309]) ).

thf(334,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ~ ( ~ ! [SY189: $i] :
                  ~ ( ~ ( ~ ( in @ SY189 @ SV36 )
                        | ( SY189 = SV18 ) )
                    | ~ ( ( SY189 != SV18 )
                        | ( in @ SY189 @ SV36 ) ) )
            | ( SV36
              = ( singleton @ SV18 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[309]) ).

thf(335,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ~ ( ( SV45
             != ( set_difference @ SV19 @ SV37 ) )
            | ! [SY212: $i] :
                ~ ( ~ ( ~ ( in @ SY212 @ SV45 )
                      | ~ ( ~ ( in @ SY212 @ SV19 )
                          | ~ ~ ( in @ SY212 @ SV37 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY212 @ SV19 )
                            | ~ ~ ( in @ SY212 @ SV37 ) )
                      | ( in @ SY212 @ SV45 ) ) ) )
        | ~ ( ~ ! [SY213: $i] :
                  ~ ( ~ ( ~ ( in @ SY213 @ SV45 )
                        | ~ ( ~ ( in @ SY213 @ SV19 )
                            | ~ ~ ( in @ SY213 @ SV37 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY213 @ SV19 )
                              | ~ ~ ( in @ SY213 @ SV37 ) )
                        | ( in @ SY213 @ SV45 ) ) )
            | ( SV45
              = ( set_difference @ SV19 @ SV37 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[310]) ).

thf(336,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( ~ ( ~ ( ( SV50
                   != ( relation_rng @ SV20 ) )
                  | ! [SY220: $i] :
                      ~ ( ~ ( ~ ( in @ SY220 @ SV50 )
                            | ~ ! [SY146: $i] :
                                  ~ ( in @ ( ordered_pair @ SY146 @ SY220 ) @ SV20 ) )
                        | ~ ( ~ ~ ! [SY147: $i] :
                                    ~ ( in @ ( ordered_pair @ SY147 @ SY220 ) @ SV20 )
                            | ( in @ SY220 @ SV50 ) ) ) )
              | ~ ( ~ ! [SY223: $i] :
                        ~ ( ~ ( ~ ( in @ SY223 @ SV50 )
                              | ~ ! [SY149: $i] :
                                    ~ ( in @ ( ordered_pair @ SY149 @ SY223 ) @ SV20 ) )
                          | ~ ( ~ ~ ! [SY150: $i] :
                                      ~ ( in @ ( ordered_pair @ SY150 @ SY223 ) @ SV20 )
                              | ( in @ SY223 @ SV50 ) ) )
                  | ( SV50
                    = ( relation_rng @ SV20 ) ) ) ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[311]) ).

thf(337,plain,
    ( ( ~ ( empty @ sK4_SX0 )
      | ~ ( relation @ sK4_SX0 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[312]) ).

thf(338,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ~ ( ( SV38
             != ( set_union2 @ SV2 @ SV22 ) )
            | ! [SY193: $i] :
                ~ ( ~ ( ~ ( in @ SY193 @ SV38 )
                      | ( in @ SY193 @ SV2 )
                      | ( in @ SY193 @ SV22 ) )
                  | ~ ( ~ ( ( in @ SY193 @ SV2 )
                          | ( in @ SY193 @ SV22 ) )
                      | ( in @ SY193 @ SV38 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[313]) ).

thf(339,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ~ ( ~ ! [SY194: $i] :
                  ~ ( ~ ( ~ ( in @ SY194 @ SV38 )
                        | ( in @ SY194 @ SV2 )
                        | ( in @ SY194 @ SV22 ) )
                    | ~ ( ~ ( ( in @ SY194 @ SV2 )
                            | ( in @ SY194 @ SV22 ) )
                        | ( in @ SY194 @ SV38 ) ) )
            | ( SV38
              = ( set_union2 @ SV2 @ SV22 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[313]) ).

thf(340,plain,
    ! [SV46: $i,SV39: $i,SV23: $i,SV3: $i] :
      ( ( ~ ( ~ ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
            | ~ ( ~ ( in @ SV3 @ SV39 )
                | ~ ( in @ SV23 @ SV46 ) ) )
        | ~ ( ~ ~ ( ~ ( in @ SV3 @ SV39 )
                  | ~ ( in @ SV23 @ SV46 ) )
            | ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[314]) ).

thf(341,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
                  | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 ) )
              | ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
                  | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) ) ) )
        = $false )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[315]) ).

thf(342,plain,
    ! [SV5: $i] :
      ( ( ( SV5 != empty_set )
        = $true )
      | ( ( ! [SY86: $i] :
              ~ ( in @ SY86 @ SV5 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[316]) ).

thf(343,plain,
    ! [SV5: $i] :
      ( ( ( ~ ! [SY87: $i] :
                ~ ( in @ SY87 @ SV5 ) )
        = $true )
      | ( ( SV5 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[317]) ).

thf(344,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ~ ( ~ ~ ( disjoint @ SV6 @ SV25 )
              | ~ ! [SY157: $i] :
                    ~ ~ ( ~ ( in @ SY157 @ SV6 )
                        | ~ ( in @ SY157 @ SV25 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[318]) ).

thf(345,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ~ ( ~ ~ ! [SY158: $i] :
                      ~ ~ ( ~ ( in @ SY158 @ SV6 )
                          | ~ ( in @ SY158 @ SV25 ) )
              | ~ ( disjoint @ SV6 @ SV25 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[319]) ).

thf(346,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( ~ ( ( SV47
               != ( relation_dom @ SV7 ) )
              | ! [SY214: $i] :
                  ~ ( ~ ( ~ ( in @ SY214 @ SV47 )
                        | ~ ! [SY93: $i] :
                              ~ ( in @ ( ordered_pair @ SY214 @ SY93 ) @ SV7 ) )
                    | ~ ( ~ ~ ! [SY94: $i] :
                                ~ ( in @ ( ordered_pair @ SY214 @ SY94 ) @ SV7 )
                        | ( in @ SY214 @ SV47 ) ) ) )
          | ~ ( ~ ! [SY217: $i] :
                    ~ ( ~ ( ~ ( in @ SY217 @ SV47 )
                          | ~ ! [SY96: $i] :
                                ~ ( in @ ( ordered_pair @ SY217 @ SY96 ) @ SV7 ) )
                      | ~ ( ~ ~ ! [SY97: $i] :
                                  ~ ( in @ ( ordered_pair @ SY217 @ SY97 ) @ SV7 )
                          | ( in @ SY217 @ SV47 ) ) )
              | ( SV47
                = ( relation_dom @ SV7 ) ) ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[320]) ).

thf(347,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ~ ( ( SV40
             != ( unordered_pair @ SV8 @ SV26 ) )
            | ! [SY196: $i] :
                ~ ( ~ ( ~ ( in @ SY196 @ SV40 )
                      | ( SY196 = SV8 )
                      | ( SY196 = SV26 ) )
                  | ~ ( ~ ( ( SY196 = SV8 )
                          | ( SY196 = SV26 ) )
                      | ( in @ SY196 @ SV40 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[321]) ).

thf(348,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ~ ( ~ ! [SY197: $i] :
                  ~ ( ~ ( ~ ( in @ SY197 @ SV40 )
                        | ( SY197 = SV8 )
                        | ( SY197 = SV26 ) )
                    | ~ ( ~ ( ( SY197 = SV8 )
                            | ( SY197 = SV26 ) )
                        | ( in @ SY197 @ SV40 ) ) )
            | ( SV40
              = ( unordered_pair @ SV8 @ SV26 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[321]) ).

thf(349,plain,
    ! [SV48: $i,SV41: $i,SV27: $i,SV9: $i] :
      ( ( ~ ( ~ ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
            | ~ ( ~ ( in @ SV9 @ SV41 )
                | ~ ( in @ SV27 @ SV48 ) ) )
        | ~ ( ~ ~ ( ~ ( in @ SV9 @ SV41 )
                  | ~ ( in @ SV27 @ SV48 ) )
            | ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[322]) ).

thf(350,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ( SV28
         != ( union @ SV10 ) )
        | ! [SY164: $i] :
            ~ ( ~ ( ~ ( in @ SY164 @ SV28 )
                  | ~ ! [SY107: $i] :
                        ~ ~ ( ~ ( in @ SY164 @ SY107 )
                            | ~ ( in @ SY107 @ SV10 ) ) )
              | ~ ( ~ ~ ! [SY108: $i] :
                          ~ ~ ( ~ ( in @ SY164 @ SY108 )
                              | ~ ( in @ SY108 @ SV10 ) )
                  | ( in @ SY164 @ SV28 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[323]) ).

thf(351,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ~ ! [SY167: $i] :
              ~ ( ~ ( ~ ( in @ SY167 @ SV28 )
                    | ~ ! [SY110: $i] :
                          ~ ~ ( ~ ( in @ SY167 @ SY110 )
                              | ~ ( in @ SY110 @ SV10 ) ) )
                | ~ ( ~ ~ ! [SY111: $i] :
                            ~ ~ ( ~ ( in @ SY167 @ SY111 )
                                | ~ ( in @ SY111 @ SV10 ) )
                    | ( in @ SY167 @ SV28 ) ) )
        | ( SV28
          = ( union @ SV10 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[324]) ).

thf(352,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ~ ( ( SV42
             != ( set_intersection2 @ SV11 @ SV29 ) )
            | ! [SY199: $i] :
                ~ ( ~ ( ~ ( in @ SY199 @ SV42 )
                      | ~ ( ~ ( in @ SY199 @ SV11 )
                          | ~ ( in @ SY199 @ SV29 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY199 @ SV11 )
                            | ~ ( in @ SY199 @ SV29 ) )
                      | ( in @ SY199 @ SV42 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[325]) ).

thf(353,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ~ ( ~ ! [SY200: $i] :
                  ~ ( ~ ( ~ ( in @ SY200 @ SV42 )
                        | ~ ( ~ ( in @ SY200 @ SV11 )
                            | ~ ( in @ SY200 @ SV29 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY200 @ SV11 )
                              | ~ ( in @ SY200 @ SV29 ) )
                        | ( in @ SY200 @ SV42 ) ) )
            | ( SV42
              = ( set_intersection2 @ SV11 @ SV29 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[325]) ).

thf(354,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ~ ( subset @ SV12 @ SV30 )
        | ! [SY173: $i] :
            ( ~ ( in @ SY173 @ SV12 )
            | ( in @ SY173 @ SV30 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[326]) ).

thf(355,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ~ ! [SY174: $i] :
              ( ~ ( in @ SY174 @ SV12 )
              | ( in @ SY174 @ SV30 ) )
        | ( subset @ SV12 @ SV30 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[327]) ).

thf(356,plain,
    ! [SV31: $i,SV13: $i] :
      ( ( ( ~ ( in @ SV13 @ SV31 ) )
        = $true )
      | ( ( ~ ( empty @ SV31 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[328]) ).

thf(357,plain,
    ! [SV15: $i,SV33: $i] :
      ( ( ( in @ SV33 @ SV15 )
        = $false )
      | ( ( in @ SV15 @ SV33 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[330]) ).

thf(358,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ~ ( ( SV43
             != ( cartesian_product2 @ SV16 @ SV34 ) )
            | ! [SY201: $i] :
                ~ ( ~ ( ~ ( in @ SY201 @ SV43 )
                      | ~ ! [SY177: $i] :
                            ~ ~ ! [SY178: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY177 @ SV16 )
                                            | ~ ( in @ SY178 @ SV34 ) )
                                      | ( SY201
                                       != ( ordered_pair @ SY177 @ SY178 ) ) ) )
                  | ~ ( ~ ~ ! [SY179: $i] :
                              ~ ~ ! [SY180: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY179 @ SV16 )
                                              | ~ ( in @ SY180 @ SV34 ) )
                                        | ( SY201
                                         != ( ordered_pair @ SY179 @ SY180 ) ) )
                      | ( in @ SY201 @ SV43 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[331]) ).

thf(359,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ~ ( ~ ! [SY206: $i] :
                  ~ ( ~ ( ~ ( in @ SY206 @ SV43 )
                        | ~ ! [SY182: $i] :
                              ~ ~ ! [SY183: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY182 @ SV16 )
                                              | ~ ( in @ SY183 @ SV34 ) )
                                        | ( SY206
                                         != ( ordered_pair @ SY182 @ SY183 ) ) ) )
                    | ~ ( ~ ~ ! [SY184: $i] :
                                ~ ~ ! [SY185: $i] :
                                      ~ ~ ( ~ ~ ( ~ ( in @ SY184 @ SV16 )
                                                | ~ ( in @ SY185 @ SV34 ) )
                                          | ( SY206
                                           != ( ordered_pair @ SY184 @ SY185 ) ) )
                        | ( in @ SY206 @ SV43 ) ) )
            | ( SV43
              = ( cartesian_product2 @ SV16 @ SV34 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[331]) ).

thf(360,plain,
    ! [SV49: $i,SV44: $i,SV35: $i,SV17: $i] :
      ( ( ( ( ordered_pair @ SV17 @ SV35 )
         != ( ordered_pair @ SV44 @ SV49 ) )
        = $true )
      | ( ( ~ ( ( SV17 != SV44 )
              | ( SV35 != SV49 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[332]) ).

thf(361,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ( SV36
         != ( singleton @ SV18 ) )
        | ! [SY188: $i] :
            ~ ( ~ ( ~ ( in @ SY188 @ SV36 )
                  | ( SY188 = SV18 ) )
              | ~ ( ( SY188 != SV18 )
                  | ( in @ SY188 @ SV36 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[333]) ).

thf(362,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ~ ! [SY189: $i] :
              ~ ( ~ ( ~ ( in @ SY189 @ SV36 )
                    | ( SY189 = SV18 ) )
                | ~ ( ( SY189 != SV18 )
                    | ( in @ SY189 @ SV36 ) ) )
        | ( SV36
          = ( singleton @ SV18 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[334]) ).

thf(363,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ~ ( ( SV45
             != ( set_difference @ SV19 @ SV37 ) )
            | ! [SY212: $i] :
                ~ ( ~ ( ~ ( in @ SY212 @ SV45 )
                      | ~ ( ~ ( in @ SY212 @ SV19 )
                          | ~ ~ ( in @ SY212 @ SV37 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY212 @ SV19 )
                            | ~ ~ ( in @ SY212 @ SV37 ) )
                      | ( in @ SY212 @ SV45 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[335]) ).

thf(364,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ~ ( ~ ! [SY213: $i] :
                  ~ ( ~ ( ~ ( in @ SY213 @ SV45 )
                        | ~ ( ~ ( in @ SY213 @ SV19 )
                            | ~ ~ ( in @ SY213 @ SV37 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY213 @ SV19 )
                              | ~ ~ ( in @ SY213 @ SV37 ) )
                        | ( in @ SY213 @ SV45 ) ) )
            | ( SV45
              = ( set_difference @ SV19 @ SV37 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[335]) ).

thf(365,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( ~ ( ( SV50
               != ( relation_rng @ SV20 ) )
              | ! [SY220: $i] :
                  ~ ( ~ ( ~ ( in @ SY220 @ SV50 )
                        | ~ ! [SY146: $i] :
                              ~ ( in @ ( ordered_pair @ SY146 @ SY220 ) @ SV20 ) )
                    | ~ ( ~ ~ ! [SY147: $i] :
                                ~ ( in @ ( ordered_pair @ SY147 @ SY220 ) @ SV20 )
                        | ( in @ SY220 @ SV50 ) ) ) )
          | ~ ( ~ ! [SY223: $i] :
                    ~ ( ~ ( ~ ( in @ SY223 @ SV50 )
                          | ~ ! [SY149: $i] :
                                ~ ( in @ ( ordered_pair @ SY149 @ SY223 ) @ SV20 ) )
                      | ~ ( ~ ~ ! [SY150: $i] :
                                  ~ ( in @ ( ordered_pair @ SY150 @ SY223 ) @ SV20 )
                          | ( in @ SY223 @ SV50 ) ) )
              | ( SV50
                = ( relation_rng @ SV20 ) ) ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[336]) ).

thf(366,plain,
    ( ( ~ ( empty @ sK4_SX0 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[337]) ).

thf(367,plain,
    ( ( ~ ( relation @ sK4_SX0 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[337]) ).

thf(368,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ( SV38
         != ( set_union2 @ SV2 @ SV22 ) )
        | ! [SY193: $i] :
            ~ ( ~ ( ~ ( in @ SY193 @ SV38 )
                  | ( in @ SY193 @ SV2 )
                  | ( in @ SY193 @ SV22 ) )
              | ~ ( ~ ( ( in @ SY193 @ SV2 )
                      | ( in @ SY193 @ SV22 ) )
                  | ( in @ SY193 @ SV38 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[338]) ).

thf(369,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ~ ! [SY194: $i] :
              ~ ( ~ ( ~ ( in @ SY194 @ SV38 )
                    | ( in @ SY194 @ SV2 )
                    | ( in @ SY194 @ SV22 ) )
                | ~ ( ~ ( ( in @ SY194 @ SV2 )
                        | ( in @ SY194 @ SV22 ) )
                    | ( in @ SY194 @ SV38 ) ) )
        | ( SV38
          = ( set_union2 @ SV2 @ SV22 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[339]) ).

thf(370,plain,
    ! [SV46: $i,SV39: $i,SV23: $i,SV3: $i] :
      ( ( ~ ( ~ ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
            | ~ ( ~ ( in @ SV3 @ SV39 )
                | ~ ( in @ SV23 @ SV46 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[340]) ).

thf(371,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ~ ( ~ ~ ( ~ ( in @ SV3 @ SV39 )
                  | ~ ( in @ SV23 @ SV46 ) )
            | ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[340]) ).

thf(372,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
              | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 ) )
          | ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
              | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) ) )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[341]) ).

thf(373,plain,
    ! [SV5: $i] :
      ( ( ( SV5 = empty_set )
        = $false )
      | ( ( ! [SY86: $i] :
              ~ ( in @ SY86 @ SV5 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[342]) ).

thf(374,plain,
    ! [SV5: $i] :
      ( ( ( ! [SY87: $i] :
              ~ ( in @ SY87 @ SV5 ) )
        = $false )
      | ( ( SV5 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[343]) ).

thf(375,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ( ~ ~ ( disjoint @ SV6 @ SV25 )
            | ~ ! [SY157: $i] :
                  ~ ~ ( ~ ( in @ SY157 @ SV6 )
                      | ~ ( in @ SY157 @ SV25 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[344]) ).

thf(376,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ( ~ ~ ! [SY158: $i] :
                    ~ ~ ( ~ ( in @ SY158 @ SV6 )
                        | ~ ( in @ SY158 @ SV25 ) )
            | ~ ( disjoint @ SV6 @ SV25 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[345]) ).

thf(377,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( ~ ( ( SV47
               != ( relation_dom @ SV7 ) )
              | ! [SY214: $i] :
                  ~ ( ~ ( ~ ( in @ SY214 @ SV47 )
                        | ~ ! [SY93: $i] :
                              ~ ( in @ ( ordered_pair @ SY214 @ SY93 ) @ SV7 ) )
                    | ~ ( ~ ~ ! [SY94: $i] :
                                ~ ( in @ ( ordered_pair @ SY214 @ SY94 ) @ SV7 )
                        | ( in @ SY214 @ SV47 ) ) ) ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[346]) ).

thf(378,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( ~ ( ~ ! [SY217: $i] :
                    ~ ( ~ ( ~ ( in @ SY217 @ SV47 )
                          | ~ ! [SY96: $i] :
                                ~ ( in @ ( ordered_pair @ SY217 @ SY96 ) @ SV7 ) )
                      | ~ ( ~ ~ ! [SY97: $i] :
                                  ~ ( in @ ( ordered_pair @ SY217 @ SY97 ) @ SV7 )
                          | ( in @ SY217 @ SV47 ) ) )
              | ( SV47
                = ( relation_dom @ SV7 ) ) ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[346]) ).

thf(379,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ( SV40
         != ( unordered_pair @ SV8 @ SV26 ) )
        | ! [SY196: $i] :
            ~ ( ~ ( ~ ( in @ SY196 @ SV40 )
                  | ( SY196 = SV8 )
                  | ( SY196 = SV26 ) )
              | ~ ( ~ ( ( SY196 = SV8 )
                      | ( SY196 = SV26 ) )
                  | ( in @ SY196 @ SV40 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[347]) ).

thf(380,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ~ ! [SY197: $i] :
              ~ ( ~ ( ~ ( in @ SY197 @ SV40 )
                    | ( SY197 = SV8 )
                    | ( SY197 = SV26 ) )
                | ~ ( ~ ( ( SY197 = SV8 )
                        | ( SY197 = SV26 ) )
                    | ( in @ SY197 @ SV40 ) ) )
        | ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[348]) ).

thf(381,plain,
    ! [SV48: $i,SV41: $i,SV27: $i,SV9: $i] :
      ( ( ~ ( ~ ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
            | ~ ( ~ ( in @ SV9 @ SV41 )
                | ~ ( in @ SV27 @ SV48 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[349]) ).

thf(382,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ~ ( ~ ~ ( ~ ( in @ SV9 @ SV41 )
                  | ~ ( in @ SV27 @ SV48 ) )
            | ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[349]) ).

thf(383,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ( SV28
         != ( union @ SV10 ) )
        = $true )
      | ( ( ! [SY164: $i] :
              ~ ( ~ ( ~ ( in @ SY164 @ SV28 )
                    | ~ ! [SY107: $i] :
                          ~ ~ ( ~ ( in @ SY164 @ SY107 )
                              | ~ ( in @ SY107 @ SV10 ) ) )
                | ~ ( ~ ~ ! [SY108: $i] :
                            ~ ~ ( ~ ( in @ SY164 @ SY108 )
                                | ~ ( in @ SY108 @ SV10 ) )
                    | ( in @ SY164 @ SV28 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[350]) ).

thf(384,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ( ~ ! [SY167: $i] :
                ~ ( ~ ( ~ ( in @ SY167 @ SV28 )
                      | ~ ! [SY110: $i] :
                            ~ ~ ( ~ ( in @ SY167 @ SY110 )
                                | ~ ( in @ SY110 @ SV10 ) ) )
                  | ~ ( ~ ~ ! [SY111: $i] :
                              ~ ~ ( ~ ( in @ SY167 @ SY111 )
                                  | ~ ( in @ SY111 @ SV10 ) )
                      | ( in @ SY167 @ SV28 ) ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[351]) ).

thf(385,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ( SV42
         != ( set_intersection2 @ SV11 @ SV29 ) )
        | ! [SY199: $i] :
            ~ ( ~ ( ~ ( in @ SY199 @ SV42 )
                  | ~ ( ~ ( in @ SY199 @ SV11 )
                      | ~ ( in @ SY199 @ SV29 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY199 @ SV11 )
                        | ~ ( in @ SY199 @ SV29 ) )
                  | ( in @ SY199 @ SV42 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[352]) ).

thf(386,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ~ ! [SY200: $i] :
              ~ ( ~ ( ~ ( in @ SY200 @ SV42 )
                    | ~ ( ~ ( in @ SY200 @ SV11 )
                        | ~ ( in @ SY200 @ SV29 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY200 @ SV11 )
                          | ~ ( in @ SY200 @ SV29 ) )
                    | ( in @ SY200 @ SV42 ) ) )
        | ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[353]) ).

thf(387,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ( ~ ( subset @ SV12 @ SV30 ) )
        = $true )
      | ( ( ! [SY173: $i] :
              ( ~ ( in @ SY173 @ SV12 )
              | ( in @ SY173 @ SV30 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[354]) ).

thf(388,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ( ~ ! [SY174: $i] :
                ( ~ ( in @ SY174 @ SV12 )
                | ( in @ SY174 @ SV30 ) ) )
        = $true )
      | ( ( subset @ SV12 @ SV30 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[355]) ).

thf(389,plain,
    ! [SV31: $i,SV13: $i] :
      ( ( ( in @ SV13 @ SV31 )
        = $false )
      | ( ( ~ ( empty @ SV31 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[356]) ).

thf(390,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ( SV43
         != ( cartesian_product2 @ SV16 @ SV34 ) )
        | ! [SY201: $i] :
            ~ ( ~ ( ~ ( in @ SY201 @ SV43 )
                  | ~ ! [SY177: $i] :
                        ~ ~ ! [SY178: $i] :
                              ~ ~ ( ~ ~ ( ~ ( in @ SY177 @ SV16 )
                                        | ~ ( in @ SY178 @ SV34 ) )
                                  | ( SY201
                                   != ( ordered_pair @ SY177 @ SY178 ) ) ) )
              | ~ ( ~ ~ ! [SY179: $i] :
                          ~ ~ ! [SY180: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY179 @ SV16 )
                                          | ~ ( in @ SY180 @ SV34 ) )
                                    | ( SY201
                                     != ( ordered_pair @ SY179 @ SY180 ) ) )
                  | ( in @ SY201 @ SV43 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[358]) ).

thf(391,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ~ ! [SY206: $i] :
              ~ ( ~ ( ~ ( in @ SY206 @ SV43 )
                    | ~ ! [SY182: $i] :
                          ~ ~ ! [SY183: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY182 @ SV16 )
                                          | ~ ( in @ SY183 @ SV34 ) )
                                    | ( SY206
                                     != ( ordered_pair @ SY182 @ SY183 ) ) ) )
                | ~ ( ~ ~ ! [SY184: $i] :
                            ~ ~ ! [SY185: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY184 @ SV16 )
                                            | ~ ( in @ SY185 @ SV34 ) )
                                      | ( SY206
                                       != ( ordered_pair @ SY184 @ SY185 ) ) )
                    | ( in @ SY206 @ SV43 ) ) )
        | ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[359]) ).

thf(392,plain,
    ! [SV49: $i,SV44: $i,SV35: $i,SV17: $i] :
      ( ( ( ( ordered_pair @ SV17 @ SV35 )
          = ( ordered_pair @ SV44 @ SV49 ) )
        = $false )
      | ( ( ~ ( ( SV17 != SV44 )
              | ( SV35 != SV49 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[360]) ).

thf(393,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ( SV36
         != ( singleton @ SV18 ) )
        = $true )
      | ( ( ! [SY188: $i] :
              ~ ( ~ ( ~ ( in @ SY188 @ SV36 )
                    | ( SY188 = SV18 ) )
                | ~ ( ( SY188 != SV18 )
                    | ( in @ SY188 @ SV36 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[361]) ).

thf(394,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ( ~ ! [SY189: $i] :
                ~ ( ~ ( ~ ( in @ SY189 @ SV36 )
                      | ( SY189 = SV18 ) )
                  | ~ ( ( SY189 != SV18 )
                      | ( in @ SY189 @ SV36 ) ) ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[362]) ).

thf(395,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ( SV45
         != ( set_difference @ SV19 @ SV37 ) )
        | ! [SY212: $i] :
            ~ ( ~ ( ~ ( in @ SY212 @ SV45 )
                  | ~ ( ~ ( in @ SY212 @ SV19 )
                      | ~ ~ ( in @ SY212 @ SV37 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY212 @ SV19 )
                        | ~ ~ ( in @ SY212 @ SV37 ) )
                  | ( in @ SY212 @ SV45 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[363]) ).

thf(396,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ~ ! [SY213: $i] :
              ~ ( ~ ( ~ ( in @ SY213 @ SV45 )
                    | ~ ( ~ ( in @ SY213 @ SV19 )
                        | ~ ~ ( in @ SY213 @ SV37 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY213 @ SV19 )
                          | ~ ~ ( in @ SY213 @ SV37 ) )
                    | ( in @ SY213 @ SV45 ) ) )
        | ( SV45
          = ( set_difference @ SV19 @ SV37 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[364]) ).

thf(397,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( ~ ( ( SV50
               != ( relation_rng @ SV20 ) )
              | ! [SY220: $i] :
                  ~ ( ~ ( ~ ( in @ SY220 @ SV50 )
                        | ~ ! [SY146: $i] :
                              ~ ( in @ ( ordered_pair @ SY146 @ SY220 ) @ SV20 ) )
                    | ~ ( ~ ~ ! [SY147: $i] :
                                ~ ( in @ ( ordered_pair @ SY147 @ SY220 ) @ SV20 )
                        | ( in @ SY220 @ SV50 ) ) ) ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[365]) ).

thf(398,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( ~ ( ~ ! [SY223: $i] :
                    ~ ( ~ ( ~ ( in @ SY223 @ SV50 )
                          | ~ ! [SY149: $i] :
                                ~ ( in @ ( ordered_pair @ SY149 @ SY223 ) @ SV20 ) )
                      | ~ ( ~ ~ ! [SY150: $i] :
                                  ~ ( in @ ( ordered_pair @ SY150 @ SY223 ) @ SV20 )
                          | ( in @ SY223 @ SV50 ) ) )
              | ( SV50
                = ( relation_rng @ SV20 ) ) ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[365]) ).

thf(399,plain,
    ( ( empty @ sK4_SX0 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[366]) ).

thf(400,plain,
    ( ( relation @ sK4_SX0 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[367]) ).

thf(401,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ( SV38
         != ( set_union2 @ SV2 @ SV22 ) )
        = $true )
      | ( ( ! [SY193: $i] :
              ~ ( ~ ( ~ ( in @ SY193 @ SV38 )
                    | ( in @ SY193 @ SV2 )
                    | ( in @ SY193 @ SV22 ) )
                | ~ ( ~ ( ( in @ SY193 @ SV2 )
                        | ( in @ SY193 @ SV22 ) )
                    | ( in @ SY193 @ SV38 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[368]) ).

thf(402,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ( ~ ! [SY194: $i] :
                ~ ( ~ ( ~ ( in @ SY194 @ SV38 )
                      | ( in @ SY194 @ SV2 )
                      | ( in @ SY194 @ SV22 ) )
                  | ~ ( ~ ( ( in @ SY194 @ SV2 )
                          | ( in @ SY194 @ SV22 ) )
                      | ( in @ SY194 @ SV38 ) ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[369]) ).

thf(403,plain,
    ! [SV46: $i,SV39: $i,SV23: $i,SV3: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        | ~ ( ~ ( in @ SV3 @ SV39 )
            | ~ ( in @ SV23 @ SV46 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[370]) ).

thf(404,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ~ ~ ( ~ ( in @ SV3 @ SV39 )
              | ~ ( in @ SV23 @ SV46 ) )
        | ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[371]) ).

thf(405,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
              | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 ) ) )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
              | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) ) )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[372]) ).

thf(406,plain,
    ! [SV5: $i,SV51: $i] :
      ( ( ( ~ ( in @ SV51 @ SV5 ) )
        = $true )
      | ( ( SV5 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[373]) ).

thf(407,plain,
    ! [SV5: $i] :
      ( ( ( ~ ( in @ ( sK6_SY87 @ SV5 ) @ SV5 ) )
        = $false )
      | ( ( SV5 = empty_set )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[374]) ).

thf(408,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ~ ( disjoint @ SV6 @ SV25 )
        | ~ ! [SY157: $i] :
              ~ ~ ( ~ ( in @ SY157 @ SV6 )
                  | ~ ( in @ SY157 @ SV25 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[375]) ).

thf(409,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ~ ~ ! [SY158: $i] :
                ~ ~ ( ~ ( in @ SY158 @ SV6 )
                    | ~ ( in @ SY158 @ SV25 ) )
        | ~ ( disjoint @ SV6 @ SV25 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[376]) ).

thf(410,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( ( SV47
           != ( relation_dom @ SV7 ) )
          | ! [SY214: $i] :
              ~ ( ~ ( ~ ( in @ SY214 @ SV47 )
                    | ~ ! [SY93: $i] :
                          ~ ( in @ ( ordered_pair @ SY214 @ SY93 ) @ SV7 ) )
                | ~ ( ~ ~ ! [SY94: $i] :
                            ~ ( in @ ( ordered_pair @ SY214 @ SY94 ) @ SV7 )
                    | ( in @ SY214 @ SV47 ) ) ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[377]) ).

thf(411,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( ~ ! [SY217: $i] :
                ~ ( ~ ( ~ ( in @ SY217 @ SV47 )
                      | ~ ! [SY96: $i] :
                            ~ ( in @ ( ordered_pair @ SY217 @ SY96 ) @ SV7 ) )
                  | ~ ( ~ ~ ! [SY97: $i] :
                              ~ ( in @ ( ordered_pair @ SY217 @ SY97 ) @ SV7 )
                      | ( in @ SY217 @ SV47 ) ) )
          | ( SV47
            = ( relation_dom @ SV7 ) ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[378]) ).

thf(412,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ( SV40
         != ( unordered_pair @ SV8 @ SV26 ) )
        = $true )
      | ( ( ! [SY196: $i] :
              ~ ( ~ ( ~ ( in @ SY196 @ SV40 )
                    | ( SY196 = SV8 )
                    | ( SY196 = SV26 ) )
                | ~ ( ~ ( ( SY196 = SV8 )
                        | ( SY196 = SV26 ) )
                    | ( in @ SY196 @ SV40 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[379]) ).

thf(413,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ( ~ ! [SY197: $i] :
                ~ ( ~ ( ~ ( in @ SY197 @ SV40 )
                      | ( SY197 = SV8 )
                      | ( SY197 = SV26 ) )
                  | ~ ( ~ ( ( SY197 = SV8 )
                          | ( SY197 = SV26 ) )
                      | ( in @ SY197 @ SV40 ) ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[380]) ).

thf(414,plain,
    ! [SV48: $i,SV41: $i,SV27: $i,SV9: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        | ~ ( ~ ( in @ SV9 @ SV41 )
            | ~ ( in @ SV27 @ SV48 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[381]) ).

thf(415,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ~ ~ ( ~ ( in @ SV9 @ SV41 )
              | ~ ( in @ SV27 @ SV48 ) )
        | ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[382]) ).

thf(416,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ( SV28
          = ( union @ SV10 ) )
        = $false )
      | ( ( ! [SY164: $i] :
              ~ ( ~ ( ~ ( in @ SY164 @ SV28 )
                    | ~ ! [SY107: $i] :
                          ~ ~ ( ~ ( in @ SY164 @ SY107 )
                              | ~ ( in @ SY107 @ SV10 ) ) )
                | ~ ( ~ ~ ! [SY108: $i] :
                            ~ ~ ( ~ ( in @ SY164 @ SY108 )
                                | ~ ( in @ SY108 @ SV10 ) )
                    | ( in @ SY164 @ SV28 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[383]) ).

thf(417,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ( ! [SY167: $i] :
              ~ ( ~ ( ~ ( in @ SY167 @ SV28 )
                    | ~ ! [SY110: $i] :
                          ~ ~ ( ~ ( in @ SY167 @ SY110 )
                              | ~ ( in @ SY110 @ SV10 ) ) )
                | ~ ( ~ ~ ! [SY111: $i] :
                            ~ ~ ( ~ ( in @ SY167 @ SY111 )
                                | ~ ( in @ SY111 @ SV10 ) )
                    | ( in @ SY167 @ SV28 ) ) ) )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[384]) ).

thf(418,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ( SV42
         != ( set_intersection2 @ SV11 @ SV29 ) )
        = $true )
      | ( ( ! [SY199: $i] :
              ~ ( ~ ( ~ ( in @ SY199 @ SV42 )
                    | ~ ( ~ ( in @ SY199 @ SV11 )
                        | ~ ( in @ SY199 @ SV29 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY199 @ SV11 )
                          | ~ ( in @ SY199 @ SV29 ) )
                    | ( in @ SY199 @ SV42 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[385]) ).

thf(419,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ( ~ ! [SY200: $i] :
                ~ ( ~ ( ~ ( in @ SY200 @ SV42 )
                      | ~ ( ~ ( in @ SY200 @ SV11 )
                          | ~ ( in @ SY200 @ SV29 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY200 @ SV11 )
                            | ~ ( in @ SY200 @ SV29 ) )
                      | ( in @ SY200 @ SV42 ) ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[386]) ).

thf(420,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ( subset @ SV12 @ SV30 )
        = $false )
      | ( ( ! [SY173: $i] :
              ( ~ ( in @ SY173 @ SV12 )
              | ( in @ SY173 @ SV30 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[387]) ).

thf(421,plain,
    ! [SV30: $i,SV12: $i] :
      ( ( ( ! [SY174: $i] :
              ( ~ ( in @ SY174 @ SV12 )
              | ( in @ SY174 @ SV30 ) ) )
        = $false )
      | ( ( subset @ SV12 @ SV30 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[388]) ).

thf(422,plain,
    ! [SV13: $i,SV31: $i] :
      ( ( ( empty @ SV31 )
        = $false )
      | ( ( in @ SV13 @ SV31 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[389]) ).

thf(423,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ( SV43
         != ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true )
      | ( ( ! [SY201: $i] :
              ~ ( ~ ( ~ ( in @ SY201 @ SV43 )
                    | ~ ! [SY177: $i] :
                          ~ ~ ! [SY178: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY177 @ SV16 )
                                          | ~ ( in @ SY178 @ SV34 ) )
                                    | ( SY201
                                     != ( ordered_pair @ SY177 @ SY178 ) ) ) )
                | ~ ( ~ ~ ! [SY179: $i] :
                            ~ ~ ! [SY180: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY179 @ SV16 )
                                            | ~ ( in @ SY180 @ SV34 ) )
                                      | ( SY201
                                       != ( ordered_pair @ SY179 @ SY180 ) ) )
                    | ( in @ SY201 @ SV43 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[390]) ).

thf(424,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ( ~ ! [SY206: $i] :
                ~ ( ~ ( ~ ( in @ SY206 @ SV43 )
                      | ~ ! [SY182: $i] :
                            ~ ~ ! [SY183: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY182 @ SV16 )
                                            | ~ ( in @ SY183 @ SV34 ) )
                                      | ( SY206
                                       != ( ordered_pair @ SY182 @ SY183 ) ) ) )
                  | ~ ( ~ ~ ! [SY184: $i] :
                              ~ ~ ! [SY185: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY184 @ SV16 )
                                              | ~ ( in @ SY185 @ SV34 ) )
                                        | ( SY206
                                         != ( ordered_pair @ SY184 @ SY185 ) ) )
                      | ( in @ SY206 @ SV43 ) ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[391]) ).

thf(425,plain,
    ! [SV49: $i,SV35: $i,SV44: $i,SV17: $i] :
      ( ( ( ( SV17 != SV44 )
          | ( SV35 != SV49 ) )
        = $false )
      | ( ( ( ordered_pair @ SV17 @ SV35 )
          = ( ordered_pair @ SV44 @ SV49 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[392]) ).

thf(426,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ( SV36
          = ( singleton @ SV18 ) )
        = $false )
      | ( ( ! [SY188: $i] :
              ~ ( ~ ( ~ ( in @ SY188 @ SV36 )
                    | ( SY188 = SV18 ) )
                | ~ ( ( SY188 != SV18 )
                    | ( in @ SY188 @ SV36 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[393]) ).

thf(427,plain,
    ! [SV18: $i,SV36: $i] :
      ( ( ( ! [SY189: $i] :
              ~ ( ~ ( ~ ( in @ SY189 @ SV36 )
                    | ( SY189 = SV18 ) )
                | ~ ( ( SY189 != SV18 )
                    | ( in @ SY189 @ SV36 ) ) ) )
        = $false )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[394]) ).

thf(428,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ( SV45
         != ( set_difference @ SV19 @ SV37 ) )
        = $true )
      | ( ( ! [SY212: $i] :
              ~ ( ~ ( ~ ( in @ SY212 @ SV45 )
                    | ~ ( ~ ( in @ SY212 @ SV19 )
                        | ~ ~ ( in @ SY212 @ SV37 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY212 @ SV19 )
                          | ~ ~ ( in @ SY212 @ SV37 ) )
                    | ( in @ SY212 @ SV45 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[395]) ).

thf(429,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ( ~ ! [SY213: $i] :
                ~ ( ~ ( ~ ( in @ SY213 @ SV45 )
                      | ~ ( ~ ( in @ SY213 @ SV19 )
                          | ~ ~ ( in @ SY213 @ SV37 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY213 @ SV19 )
                            | ~ ~ ( in @ SY213 @ SV37 ) )
                      | ( in @ SY213 @ SV45 ) ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[396]) ).

thf(430,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( ( SV50
           != ( relation_rng @ SV20 ) )
          | ! [SY220: $i] :
              ~ ( ~ ( ~ ( in @ SY220 @ SV50 )
                    | ~ ! [SY146: $i] :
                          ~ ( in @ ( ordered_pair @ SY146 @ SY220 ) @ SV20 ) )
                | ~ ( ~ ~ ! [SY147: $i] :
                            ~ ( in @ ( ordered_pair @ SY147 @ SY220 ) @ SV20 )
                    | ( in @ SY220 @ SV50 ) ) ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[397]) ).

thf(431,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( ~ ! [SY223: $i] :
                ~ ( ~ ( ~ ( in @ SY223 @ SV50 )
                      | ~ ! [SY149: $i] :
                            ~ ( in @ ( ordered_pair @ SY149 @ SY223 ) @ SV20 ) )
                  | ~ ( ~ ~ ! [SY150: $i] :
                              ~ ( in @ ( ordered_pair @ SY150 @ SY223 ) @ SV20 )
                      | ( in @ SY223 @ SV50 ) ) )
          | ( SV50
            = ( relation_rng @ SV20 ) ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[398]) ).

thf(432,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false )
      | ( ( ! [SY193: $i] :
              ~ ( ~ ( ~ ( in @ SY193 @ SV38 )
                    | ( in @ SY193 @ SV2 )
                    | ( in @ SY193 @ SV22 ) )
                | ~ ( ~ ( ( in @ SY193 @ SV2 )
                        | ( in @ SY193 @ SV22 ) )
                    | ( in @ SY193 @ SV38 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[401]) ).

thf(433,plain,
    ! [SV22: $i,SV2: $i,SV38: $i] :
      ( ( ( ! [SY194: $i] :
              ~ ( ~ ( ~ ( in @ SY194 @ SV38 )
                    | ( in @ SY194 @ SV2 )
                    | ( in @ SY194 @ SV22 ) )
                | ~ ( ~ ( ( in @ SY194 @ SV2 )
                        | ( in @ SY194 @ SV22 ) )
                    | ( in @ SY194 @ SV38 ) ) ) )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[402]) ).

thf(434,plain,
    ! [SV46: $i,SV39: $i,SV23: $i,SV3: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV3 @ SV39 )
              | ~ ( in @ SV23 @ SV46 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[403]) ).

thf(435,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV3 @ SV39 )
                | ~ ( in @ SV23 @ SV46 ) ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[404]) ).

thf(436,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
          | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
              | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) ) )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[405]) ).

thf(437,plain,
    ! [SV5: $i,SV51: $i] :
      ( ( ( in @ SV51 @ SV5 )
        = $false )
      | ( ( SV5 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[406]) ).

thf(438,plain,
    ! [SV5: $i] :
      ( ( ( in @ ( sK6_SY87 @ SV5 ) @ SV5 )
        = $true )
      | ( ( SV5 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[407]) ).

thf(439,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ( ~ ~ ( disjoint @ SV6 @ SV25 ) )
        = $true )
      | ( ( ~ ! [SY157: $i] :
                ~ ~ ( ~ ( in @ SY157 @ SV6 )
                    | ~ ( in @ SY157 @ SV25 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[408]) ).

thf(440,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ( ~ ~ ! [SY158: $i] :
                  ~ ~ ( ~ ( in @ SY158 @ SV6 )
                      | ~ ( in @ SY158 @ SV25 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[409]) ).

thf(441,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( SV47
         != ( relation_dom @ SV7 ) )
        = $true )
      | ( ( ! [SY214: $i] :
              ~ ( ~ ( ~ ( in @ SY214 @ SV47 )
                    | ~ ! [SY93: $i] :
                          ~ ( in @ ( ordered_pair @ SY214 @ SY93 ) @ SV7 ) )
                | ~ ( ~ ~ ! [SY94: $i] :
                            ~ ( in @ ( ordered_pair @ SY214 @ SY94 ) @ SV7 )
                    | ( in @ SY214 @ SV47 ) ) ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[410]) ).

thf(442,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( ~ ! [SY217: $i] :
                ~ ( ~ ( ~ ( in @ SY217 @ SV47 )
                      | ~ ! [SY96: $i] :
                            ~ ( in @ ( ordered_pair @ SY217 @ SY96 ) @ SV7 ) )
                  | ~ ( ~ ~ ! [SY97: $i] :
                              ~ ( in @ ( ordered_pair @ SY217 @ SY97 ) @ SV7 )
                      | ( in @ SY217 @ SV47 ) ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[411]) ).

thf(443,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false )
      | ( ( ! [SY196: $i] :
              ~ ( ~ ( ~ ( in @ SY196 @ SV40 )
                    | ( SY196 = SV8 )
                    | ( SY196 = SV26 ) )
                | ~ ( ~ ( ( SY196 = SV8 )
                        | ( SY196 = SV26 ) )
                    | ( in @ SY196 @ SV40 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[412]) ).

thf(444,plain,
    ! [SV26: $i,SV8: $i,SV40: $i] :
      ( ( ( ! [SY197: $i] :
              ~ ( ~ ( ~ ( in @ SY197 @ SV40 )
                    | ( SY197 = SV8 )
                    | ( SY197 = SV26 ) )
                | ~ ( ~ ( ( SY197 = SV8 )
                        | ( SY197 = SV26 ) )
                    | ( in @ SY197 @ SV40 ) ) ) )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[413]) ).

thf(445,plain,
    ! [SV48: $i,SV41: $i,SV27: $i,SV9: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV9 @ SV41 )
              | ~ ( in @ SV27 @ SV48 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[414]) ).

thf(446,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV9 @ SV41 )
                | ~ ( in @ SV27 @ SV48 ) ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[415]) ).

thf(447,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV52 @ SV28 )
                  | ~ ! [SY226: $i] :
                        ~ ~ ( ~ ( in @ SV52 @ SY226 )
                            | ~ ( in @ SY226 @ SV10 ) ) )
              | ~ ( ~ ~ ! [SY227: $i] :
                          ~ ~ ( ~ ( in @ SV52 @ SY227 )
                              | ~ ( in @ SY227 @ SV10 ) )
                  | ( in @ SV52 @ SV28 ) ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[416]) ).

thf(448,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
                  | ~ ! [SY228: $i] :
                        ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY228 )
                            | ~ ( in @ SY228 @ SV10 ) ) )
              | ~ ( ~ ~ ! [SY229: $i] :
                          ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                              | ~ ( in @ SY229 @ SV10 ) )
                  | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) ) )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[417]) ).

thf(449,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false )
      | ( ( ! [SY199: $i] :
              ~ ( ~ ( ~ ( in @ SY199 @ SV42 )
                    | ~ ( ~ ( in @ SY199 @ SV11 )
                        | ~ ( in @ SY199 @ SV29 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY199 @ SV11 )
                          | ~ ( in @ SY199 @ SV29 ) )
                    | ( in @ SY199 @ SV42 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[418]) ).

thf(450,plain,
    ! [SV29: $i,SV11: $i,SV42: $i] :
      ( ( ( ! [SY200: $i] :
              ~ ( ~ ( ~ ( in @ SY200 @ SV42 )
                    | ~ ( ~ ( in @ SY200 @ SV11 )
                        | ~ ( in @ SY200 @ SV29 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY200 @ SV11 )
                          | ~ ( in @ SY200 @ SV29 ) )
                    | ( in @ SY200 @ SV42 ) ) ) )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[419]) ).

thf(451,plain,
    ! [SV30: $i,SV12: $i,SV53: $i] :
      ( ( ( ~ ( in @ SV53 @ SV12 )
          | ( in @ SV53 @ SV30 ) )
        = $true )
      | ( ( subset @ SV12 @ SV30 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[420]) ).

thf(452,plain,
    ! [SV12: $i,SV30: $i] :
      ( ( ( ~ ( in @ ( sK8_SY174 @ SV30 @ SV12 ) @ SV12 )
          | ( in @ ( sK8_SY174 @ SV30 @ SV12 ) @ SV30 ) )
        = $false )
      | ( ( subset @ SV12 @ SV30 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[421]) ).

thf(453,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false )
      | ( ( ! [SY201: $i] :
              ~ ( ~ ( ~ ( in @ SY201 @ SV43 )
                    | ~ ! [SY177: $i] :
                          ~ ~ ! [SY178: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY177 @ SV16 )
                                          | ~ ( in @ SY178 @ SV34 ) )
                                    | ( SY201
                                     != ( ordered_pair @ SY177 @ SY178 ) ) ) )
                | ~ ( ~ ~ ! [SY179: $i] :
                            ~ ~ ! [SY180: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY179 @ SV16 )
                                            | ~ ( in @ SY180 @ SV34 ) )
                                      | ( SY201
                                       != ( ordered_pair @ SY179 @ SY180 ) ) )
                    | ( in @ SY201 @ SV43 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[423]) ).

thf(454,plain,
    ! [SV34: $i,SV16: $i,SV43: $i] :
      ( ( ( ! [SY206: $i] :
              ~ ( ~ ( ~ ( in @ SY206 @ SV43 )
                    | ~ ! [SY182: $i] :
                          ~ ~ ! [SY183: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY182 @ SV16 )
                                          | ~ ( in @ SY183 @ SV34 ) )
                                    | ( SY206
                                     != ( ordered_pair @ SY182 @ SY183 ) ) ) )
                | ~ ( ~ ~ ! [SY184: $i] :
                            ~ ~ ! [SY185: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY184 @ SV16 )
                                            | ~ ( in @ SY185 @ SV34 ) )
                                      | ( SY206
                                       != ( ordered_pair @ SY184 @ SY185 ) ) )
                    | ( in @ SY206 @ SV43 ) ) ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[424]) ).

thf(455,plain,
    ! [SV49: $i,SV35: $i,SV44: $i,SV17: $i] :
      ( ( ( SV17 != SV44 )
        = $false )
      | ( ( ( ordered_pair @ SV17 @ SV35 )
          = ( ordered_pair @ SV44 @ SV49 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[425]) ).

thf(456,plain,
    ! [SV44: $i,SV17: $i,SV49: $i,SV35: $i] :
      ( ( ( SV35 != SV49 )
        = $false )
      | ( ( ( ordered_pair @ SV17 @ SV35 )
          = ( ordered_pair @ SV44 @ SV49 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[425]) ).

thf(457,plain,
    ! [SV18: $i,SV36: $i,SV54: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV54 @ SV36 )
                  | ( SV54 = SV18 ) )
              | ~ ( ( SV54 != SV18 )
                  | ( in @ SV54 @ SV36 ) ) ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[426]) ).

thf(458,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
                  | ( ( sK9_SY189 @ SV18 @ SV36 )
                    = SV18 ) )
              | ~ ( ( ( sK9_SY189 @ SV18 @ SV36 )
                   != SV18 )
                  | ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) ) ) )
        = $false )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[427]) ).

thf(459,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false )
      | ( ( ! [SY212: $i] :
              ~ ( ~ ( ~ ( in @ SY212 @ SV45 )
                    | ~ ( ~ ( in @ SY212 @ SV19 )
                        | ~ ~ ( in @ SY212 @ SV37 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY212 @ SV19 )
                          | ~ ~ ( in @ SY212 @ SV37 ) )
                    | ( in @ SY212 @ SV45 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[428]) ).

thf(460,plain,
    ! [SV37: $i,SV19: $i,SV45: $i] :
      ( ( ( ! [SY213: $i] :
              ~ ( ~ ( ~ ( in @ SY213 @ SV45 )
                    | ~ ( ~ ( in @ SY213 @ SV19 )
                        | ~ ~ ( in @ SY213 @ SV37 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY213 @ SV19 )
                          | ~ ~ ( in @ SY213 @ SV37 ) )
                    | ( in @ SY213 @ SV45 ) ) ) )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[429]) ).

thf(461,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( SV50
         != ( relation_rng @ SV20 ) )
        = $true )
      | ( ( ! [SY220: $i] :
              ~ ( ~ ( ~ ( in @ SY220 @ SV50 )
                    | ~ ! [SY146: $i] :
                          ~ ( in @ ( ordered_pair @ SY146 @ SY220 ) @ SV20 ) )
                | ~ ( ~ ~ ! [SY147: $i] :
                            ~ ( in @ ( ordered_pair @ SY147 @ SY220 ) @ SV20 )
                    | ( in @ SY220 @ SV50 ) ) ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[430]) ).

thf(462,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( ~ ! [SY223: $i] :
                ~ ( ~ ( ~ ( in @ SY223 @ SV50 )
                      | ~ ! [SY149: $i] :
                            ~ ( in @ ( ordered_pair @ SY149 @ SY223 ) @ SV20 ) )
                  | ~ ( ~ ~ ! [SY150: $i] :
                              ~ ( in @ ( ordered_pair @ SY150 @ SY223 ) @ SV20 )
                      | ( in @ SY223 @ SV50 ) ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[431]) ).

thf(463,plain,
    ! [SV22: $i,SV2: $i,SV38: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV55 @ SV38 )
                  | ( in @ SV55 @ SV2 )
                  | ( in @ SV55 @ SV22 ) )
              | ~ ( ~ ( ( in @ SV55 @ SV2 )
                      | ( in @ SV55 @ SV22 ) )
                  | ( in @ SV55 @ SV38 ) ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[432]) ).

thf(464,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
              | ~ ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                      | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) ) ) )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[433]) ).

thf(465,plain,
    ! [SV46: $i,SV39: $i,SV23: $i,SV3: $i] :
      ( ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ SV3 @ SV39 )
              | ~ ( in @ SV23 @ SV46 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[434]) ).

thf(466,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ( ~ ( ~ ( in @ SV3 @ SV39 )
              | ~ ( in @ SV23 @ SV46 ) ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[435]) ).

thf(467,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
              | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) ) )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[436]) ).

thf(468,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
              | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) ) )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[436]) ).

thf(469,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $false )
      | ( ( ~ ! [SY157: $i] :
                ~ ~ ( ~ ( in @ SY157 @ SV6 )
                    | ~ ( in @ SY157 @ SV25 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[439]) ).

thf(470,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ( ~ ! [SY158: $i] :
                ~ ~ ( ~ ( in @ SY158 @ SV6 )
                    | ~ ( in @ SY158 @ SV25 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[440]) ).

thf(471,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( ! [SY214: $i] :
              ~ ( ~ ( ~ ( in @ SY214 @ SV47 )
                    | ~ ! [SY93: $i] :
                          ~ ( in @ ( ordered_pair @ SY214 @ SY93 ) @ SV7 ) )
                | ~ ( ~ ~ ! [SY94: $i] :
                            ~ ( in @ ( ordered_pair @ SY214 @ SY94 ) @ SV7 )
                    | ( in @ SY214 @ SV47 ) ) ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[441]) ).

thf(472,plain,
    ! [SV7: $i,SV47: $i] :
      ( ( ( ! [SY217: $i] :
              ~ ( ~ ( ~ ( in @ SY217 @ SV47 )
                    | ~ ! [SY96: $i] :
                          ~ ( in @ ( ordered_pair @ SY217 @ SY96 ) @ SV7 ) )
                | ~ ( ~ ~ ! [SY97: $i] :
                            ~ ( in @ ( ordered_pair @ SY217 @ SY97 ) @ SV7 )
                    | ( in @ SY217 @ SV47 ) ) ) )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[442]) ).

thf(473,plain,
    ! [SV26: $i,SV8: $i,SV40: $i,SV56: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV56 @ SV40 )
                  | ( SV56 = SV8 )
                  | ( SV56 = SV26 ) )
              | ~ ( ~ ( ( SV56 = SV8 )
                      | ( SV56 = SV26 ) )
                  | ( in @ SV56 @ SV40 ) ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[443]) ).

thf(474,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV8 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV26 ) )
              | ~ ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                        = SV8 )
                      | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                        = SV26 ) )
                  | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) ) ) )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[444]) ).

thf(475,plain,
    ! [SV48: $i,SV41: $i,SV27: $i,SV9: $i] :
      ( ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ SV9 @ SV41 )
              | ~ ( in @ SV27 @ SV48 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[445]) ).

thf(476,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ( ~ ( ~ ( in @ SV9 @ SV41 )
              | ~ ( in @ SV27 @ SV48 ) ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[446]) ).

thf(477,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( in @ SV52 @ SV28 )
              | ~ ! [SY226: $i] :
                    ~ ~ ( ~ ( in @ SV52 @ SY226 )
                        | ~ ( in @ SY226 @ SV10 ) ) )
          | ~ ( ~ ~ ! [SY227: $i] :
                      ~ ~ ( ~ ( in @ SV52 @ SY227 )
                          | ~ ( in @ SY227 @ SV10 ) )
              | ( in @ SV52 @ SV28 ) ) )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[447]) ).

thf(478,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
              | ~ ! [SY228: $i] :
                    ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY228 )
                        | ~ ( in @ SY228 @ SV10 ) ) )
          | ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[448]) ).

thf(479,plain,
    ! [SV29: $i,SV11: $i,SV42: $i,SV57: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV57 @ SV42 )
                  | ~ ( ~ ( in @ SV57 @ SV11 )
                      | ~ ( in @ SV57 @ SV29 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV57 @ SV11 )
                        | ~ ( in @ SV57 @ SV29 ) )
                  | ( in @ SV57 @ SV42 ) ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[449]) ).

thf(480,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
                  | ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                      | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                        | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
                  | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) ) )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[450]) ).

thf(481,plain,
    ! [SV30: $i,SV12: $i,SV53: $i] :
      ( ( ( ~ ( in @ SV53 @ SV12 ) )
        = $true )
      | ( ( in @ SV53 @ SV30 )
        = $true )
      | ( ( subset @ SV12 @ SV30 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[451]) ).

thf(482,plain,
    ! [SV12: $i,SV30: $i] :
      ( ( ( ~ ( in @ ( sK8_SY174 @ SV30 @ SV12 ) @ SV12 ) )
        = $false )
      | ( ( subset @ SV12 @ SV30 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[452]) ).

thf(483,plain,
    ! [SV12: $i,SV30: $i] :
      ( ( ( in @ ( sK8_SY174 @ SV30 @ SV12 ) @ SV30 )
        = $false )
      | ( ( subset @ SV12 @ SV30 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[452]) ).

thf(484,plain,
    ! [SV34: $i,SV16: $i,SV43: $i,SV58: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV58 @ SV43 )
                  | ~ ! [SY230: $i] :
                        ~ ~ ! [SY231: $i] :
                              ~ ~ ( ~ ~ ( ~ ( in @ SY230 @ SV16 )
                                        | ~ ( in @ SY231 @ SV34 ) )
                                  | ( SV58
                                   != ( ordered_pair @ SY230 @ SY231 ) ) ) )
              | ~ ( ~ ~ ! [SY232: $i] :
                          ~ ~ ! [SY233: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY232 @ SV16 )
                                          | ~ ( in @ SY233 @ SV34 ) )
                                    | ( SV58
                                     != ( ordered_pair @ SY232 @ SY233 ) ) )
                  | ( in @ SV58 @ SV43 ) ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[453]) ).

thf(485,plain,
    ! [SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
                  | ~ ! [SY234: $i] :
                        ~ ~ ! [SY235: $i] :
                              ~ ~ ( ~ ~ ( ~ ( in @ SY234 @ SV16 )
                                        | ~ ( in @ SY235 @ SV34 ) )
                                  | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                   != ( ordered_pair @ SY234 @ SY235 ) ) ) )
              | ~ ( ~ ~ ! [SY236: $i] :
                          ~ ~ ! [SY237: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                          | ~ ( in @ SY237 @ SV34 ) )
                                    | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                     != ( ordered_pair @ SY236 @ SY237 ) ) )
                  | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[454]) ).

thf(486,plain,
    ! [SV49: $i,SV35: $i,SV44: $i,SV17: $i] :
      ( ( ( SV17 = SV44 )
        = $true )
      | ( ( ( ordered_pair @ SV17 @ SV35 )
          = ( ordered_pair @ SV44 @ SV49 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[455]) ).

thf(487,plain,
    ! [SV44: $i,SV17: $i,SV49: $i,SV35: $i] :
      ( ( ( SV35 = SV49 )
        = $true )
      | ( ( ( ordered_pair @ SV17 @ SV35 )
          = ( ordered_pair @ SV44 @ SV49 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[456]) ).

thf(488,plain,
    ! [SV18: $i,SV36: $i,SV54: $i] :
      ( ( ( ~ ( ~ ( in @ SV54 @ SV36 )
              | ( SV54 = SV18 ) )
          | ~ ( ( SV54 != SV18 )
              | ( in @ SV54 @ SV36 ) ) )
        = $false )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[457]) ).

thf(489,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
              | ( ( sK9_SY189 @ SV18 @ SV36 )
                = SV18 ) )
          | ~ ( ( ( sK9_SY189 @ SV18 @ SV36 )
               != SV18 )
              | ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[458]) ).

thf(490,plain,
    ! [SV37: $i,SV19: $i,SV45: $i,SV59: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV59 @ SV45 )
                  | ~ ( ~ ( in @ SV59 @ SV19 )
                      | ~ ~ ( in @ SV59 @ SV37 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV59 @ SV19 )
                        | ~ ~ ( in @ SV59 @ SV37 ) )
                  | ( in @ SV59 @ SV45 ) ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[459]) ).

thf(491,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
                  | ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                      | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                        | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
                  | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) ) )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[460]) ).

thf(492,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( ! [SY220: $i] :
              ~ ( ~ ( ~ ( in @ SY220 @ SV50 )
                    | ~ ! [SY146: $i] :
                          ~ ( in @ ( ordered_pair @ SY146 @ SY220 ) @ SV20 ) )
                | ~ ( ~ ~ ! [SY147: $i] :
                            ~ ( in @ ( ordered_pair @ SY147 @ SY220 ) @ SV20 )
                    | ( in @ SY220 @ SV50 ) ) ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[461]) ).

thf(493,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( ! [SY223: $i] :
              ~ ( ~ ( ~ ( in @ SY223 @ SV50 )
                    | ~ ! [SY149: $i] :
                          ~ ( in @ ( ordered_pair @ SY149 @ SY223 ) @ SV20 ) )
                | ~ ( ~ ~ ! [SY150: $i] :
                            ~ ( in @ ( ordered_pair @ SY150 @ SY223 ) @ SV20 )
                    | ( in @ SY223 @ SV50 ) ) ) )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[462]) ).

thf(494,plain,
    ! [SV22: $i,SV2: $i,SV38: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( in @ SV55 @ SV38 )
              | ( in @ SV55 @ SV2 )
              | ( in @ SV55 @ SV22 ) )
          | ~ ( ~ ( ( in @ SV55 @ SV2 )
                  | ( in @ SV55 @ SV22 ) )
              | ( in @ SV55 @ SV38 ) ) )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[463]) ).

thf(495,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
          | ~ ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[464]) ).

thf(496,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ( ~ ( in @ SV3 @ SV39 )
          | ~ ( in @ SV23 @ SV46 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[465]) ).

thf(497,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ( ~ ( in @ SV3 @ SV39 )
          | ~ ( in @ SV23 @ SV46 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[466]) ).

thf(498,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
              | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) ) )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[467]) ).

thf(499,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
          | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) )
        = $false )
      | ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
        = $false )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[468]) ).

thf(500,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ( disjoint @ SV6 @ SV25 )
        = $true )
      | ( ( ~ ! [SY157: $i] :
                ~ ~ ( ~ ( in @ SY157 @ SV6 )
                    | ~ ( in @ SY157 @ SV25 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[469]) ).

thf(501,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ( ! [SY158: $i] :
              ~ ~ ( ~ ( in @ SY158 @ SV6 )
                  | ~ ( in @ SY158 @ SV25 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[470]) ).

thf(502,plain,
    ! [SV7: $i,SV47: $i,SV60: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV60 @ SV47 )
                  | ~ ! [SY238: $i] :
                        ~ ( in @ ( ordered_pair @ SV60 @ SY238 ) @ SV7 ) )
              | ~ ( ~ ~ ! [SY239: $i] :
                          ~ ( in @ ( ordered_pair @ SV60 @ SY239 ) @ SV7 )
                  | ( in @ SV60 @ SV47 ) ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[471]) ).

thf(503,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
                  | ~ ! [SY240: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY240 ) @ SV7 ) )
              | ~ ( ~ ~ ! [SY241: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
                  | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) ) )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[472]) ).

thf(504,plain,
    ! [SV26: $i,SV8: $i,SV40: $i,SV56: $i] :
      ( ( ( ~ ( ~ ( in @ SV56 @ SV40 )
              | ( SV56 = SV8 )
              | ( SV56 = SV26 ) )
          | ~ ( ~ ( ( SV56 = SV8 )
                  | ( SV56 = SV26 ) )
              | ( in @ SV56 @ SV40 ) ) )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[473]) ).

thf(505,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV8 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV26 ) )
          | ~ ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV8 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV26 ) )
              | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[474]) ).

thf(506,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ( ~ ( in @ SV9 @ SV41 )
          | ~ ( in @ SV27 @ SV48 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[475]) ).

thf(507,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ( ~ ( in @ SV9 @ SV41 )
          | ~ ( in @ SV27 @ SV48 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[476]) ).

thf(508,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( in @ SV52 @ SV28 )
              | ~ ! [SY226: $i] :
                    ~ ~ ( ~ ( in @ SV52 @ SY226 )
                        | ~ ( in @ SY226 @ SV10 ) ) ) )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[477]) ).

thf(509,plain,
    ! [SV28: $i,SV10: $i,SV52: $i] :
      ( ( ( ~ ( ~ ~ ! [SY227: $i] :
                      ~ ~ ( ~ ( in @ SV52 @ SY227 )
                          | ~ ( in @ SY227 @ SV10 ) )
              | ( in @ SV52 @ SV28 ) ) )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[477]) ).

thf(510,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
              | ~ ! [SY228: $i] :
                    ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY228 )
                        | ~ ( in @ SY228 @ SV10 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[478]) ).

thf(511,plain,
    ! [SV29: $i,SV11: $i,SV42: $i,SV57: $i] :
      ( ( ( ~ ( ~ ( in @ SV57 @ SV42 )
              | ~ ( ~ ( in @ SV57 @ SV11 )
                  | ~ ( in @ SV57 @ SV29 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV57 @ SV11 )
                    | ~ ( in @ SV57 @ SV29 ) )
              | ( in @ SV57 @ SV42 ) ) )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[479]) ).

thf(512,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
              | ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                  | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[480]) ).

thf(513,plain,
    ! [SV30: $i,SV12: $i,SV53: $i] :
      ( ( ( in @ SV53 @ SV12 )
        = $false )
      | ( ( in @ SV53 @ SV30 )
        = $true )
      | ( ( subset @ SV12 @ SV30 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[481]) ).

thf(514,plain,
    ! [SV12: $i,SV30: $i] :
      ( ( ( in @ ( sK8_SY174 @ SV30 @ SV12 ) @ SV12 )
        = $true )
      | ( ( subset @ SV12 @ SV30 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[482]) ).

thf(515,plain,
    ! [SV34: $i,SV16: $i,SV43: $i,SV58: $i] :
      ( ( ( ~ ( ~ ( in @ SV58 @ SV43 )
              | ~ ! [SY230: $i] :
                    ~ ~ ! [SY231: $i] :
                          ~ ~ ( ~ ~ ( ~ ( in @ SY230 @ SV16 )
                                    | ~ ( in @ SY231 @ SV34 ) )
                              | ( SV58
                               != ( ordered_pair @ SY230 @ SY231 ) ) ) )
          | ~ ( ~ ~ ! [SY232: $i] :
                      ~ ~ ! [SY233: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY232 @ SV16 )
                                      | ~ ( in @ SY233 @ SV34 ) )
                                | ( SV58
                                 != ( ordered_pair @ SY232 @ SY233 ) ) )
              | ( in @ SV58 @ SV43 ) ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[484]) ).

thf(516,plain,
    ! [SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
              | ~ ! [SY234: $i] :
                    ~ ~ ! [SY235: $i] :
                          ~ ~ ( ~ ~ ( ~ ( in @ SY234 @ SV16 )
                                    | ~ ( in @ SY235 @ SV34 ) )
                              | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                               != ( ordered_pair @ SY234 @ SY235 ) ) ) )
          | ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[485]) ).

thf(517,plain,
    ! [SV18: $i,SV36: $i,SV54: $i] :
      ( ( ( ~ ( ~ ( in @ SV54 @ SV36 )
              | ( SV54 = SV18 ) ) )
        = $false )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[488]) ).

thf(518,plain,
    ! [SV36: $i,SV18: $i,SV54: $i] :
      ( ( ( ~ ( ( SV54 != SV18 )
              | ( in @ SV54 @ SV36 ) ) )
        = $false )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[488]) ).

thf(519,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
              | ( ( sK9_SY189 @ SV18 @ SV36 )
                = SV18 ) ) )
        = $true )
      | ( ( ~ ( ( ( sK9_SY189 @ SV18 @ SV36 )
               != SV18 )
              | ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[489]) ).

thf(520,plain,
    ! [SV37: $i,SV19: $i,SV45: $i,SV59: $i] :
      ( ( ( ~ ( ~ ( in @ SV59 @ SV45 )
              | ~ ( ~ ( in @ SV59 @ SV19 )
                  | ~ ~ ( in @ SV59 @ SV37 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV59 @ SV19 )
                    | ~ ~ ( in @ SV59 @ SV37 ) )
              | ( in @ SV59 @ SV45 ) ) )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[490]) ).

thf(521,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
              | ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                  | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[491]) ).

thf(522,plain,
    ! [SV20: $i,SV50: $i,SV61: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV61 @ SV50 )
                  | ~ ! [SY242: $i] :
                        ~ ( in @ ( ordered_pair @ SY242 @ SV61 ) @ SV20 ) )
              | ~ ( ~ ~ ! [SY243: $i] :
                          ~ ( in @ ( ordered_pair @ SY243 @ SV61 ) @ SV20 )
                  | ( in @ SV61 @ SV50 ) ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[492]) ).

thf(523,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
                  | ~ ! [SY244: $i] :
                        ~ ( in @ ( ordered_pair @ SY244 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
              | ~ ( ~ ~ ! [SY245: $i] :
                          ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
                  | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) ) )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[493]) ).

thf(524,plain,
    ! [SV22: $i,SV2: $i,SV38: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( in @ SV55 @ SV38 )
              | ( in @ SV55 @ SV2 )
              | ( in @ SV55 @ SV22 ) ) )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[494]) ).

thf(525,plain,
    ! [SV38: $i,SV22: $i,SV2: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( ( in @ SV55 @ SV2 )
                  | ( in @ SV55 @ SV22 ) )
              | ( in @ SV55 @ SV38 ) ) )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[494]) ).

thf(526,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[495]) ).

thf(527,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ( ~ ( in @ SV3 @ SV39 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[496]) ).

thf(528,plain,
    ! [SV39: $i,SV3: $i,SV46: $i,SV23: $i] :
      ( ( ( ~ ( in @ SV23 @ SV46 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[496]) ).

thf(529,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ( ~ ( in @ SV3 @ SV39 ) )
        = $true )
      | ( ( ~ ( in @ SV23 @ SV46 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[497]) ).

thf(530,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
          | ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 ) )
        = $false )
      | ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[498]) ).

thf(531,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 ) )
        = $false )
      | ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
        = $false )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[499]) ).

thf(532,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
        = $false )
      | ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
        = $false )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[499]) ).

thf(533,plain,
    ! [SV25: $i,SV6: $i] :
      ( ( ( ! [SY157: $i] :
              ~ ~ ( ~ ( in @ SY157 @ SV6 )
                  | ~ ( in @ SY157 @ SV25 ) ) )
        = $false )
      | ( ( disjoint @ SV6 @ SV25 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[500]) ).

thf(534,plain,
    ! [SV25: $i,SV6: $i,SV62: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV62 @ SV6 )
                | ~ ( in @ SV62 @ SV25 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[501]) ).

thf(535,plain,
    ! [SV7: $i,SV47: $i,SV60: $i] :
      ( ( ( ~ ( ~ ( in @ SV60 @ SV47 )
              | ~ ! [SY238: $i] :
                    ~ ( in @ ( ordered_pair @ SV60 @ SY238 ) @ SV7 ) )
          | ~ ( ~ ~ ! [SY239: $i] :
                      ~ ( in @ ( ordered_pair @ SV60 @ SY239 ) @ SV7 )
              | ( in @ SV60 @ SV47 ) ) )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[502]) ).

thf(536,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
              | ~ ! [SY240: $i] :
                    ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY240 ) @ SV7 ) )
          | ~ ( ~ ~ ! [SY241: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
              | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[503]) ).

thf(537,plain,
    ! [SV26: $i,SV8: $i,SV40: $i,SV56: $i] :
      ( ( ( ~ ( ~ ( in @ SV56 @ SV40 )
              | ( SV56 = SV8 )
              | ( SV56 = SV26 ) ) )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[504]) ).

thf(538,plain,
    ! [SV40: $i,SV26: $i,SV8: $i,SV56: $i] :
      ( ( ( ~ ( ~ ( ( SV56 = SV8 )
                  | ( SV56 = SV26 ) )
              | ( in @ SV56 @ SV40 ) ) )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[504]) ).

thf(539,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV8 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV26 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV8 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV26 ) )
              | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[505]) ).

thf(540,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ( ~ ( in @ SV9 @ SV41 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[506]) ).

thf(541,plain,
    ! [SV41: $i,SV9: $i,SV48: $i,SV27: $i] :
      ( ( ( ~ ( in @ SV27 @ SV48 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[506]) ).

thf(542,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ( ~ ( in @ SV9 @ SV41 ) )
        = $true )
      | ( ( ~ ( in @ SV27 @ SV48 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[507]) ).

thf(543,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV28 )
          | ~ ! [SY226: $i] :
                ~ ~ ( ~ ( in @ SV52 @ SY226 )
                    | ~ ( in @ SY226 @ SV10 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[508]) ).

thf(544,plain,
    ! [SV28: $i,SV10: $i,SV52: $i] :
      ( ( ( ~ ~ ! [SY227: $i] :
                  ~ ~ ( ~ ( in @ SV52 @ SY227 )
                      | ~ ( in @ SY227 @ SV10 ) )
          | ( in @ SV52 @ SV28 ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[509]) ).

thf(545,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
          | ~ ! [SY228: $i] :
                ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY228 )
                    | ~ ( in @ SY228 @ SV10 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[510]) ).

thf(546,plain,
    ! [SV29: $i,SV11: $i,SV42: $i,SV57: $i] :
      ( ( ( ~ ( ~ ( in @ SV57 @ SV42 )
              | ~ ( ~ ( in @ SV57 @ SV11 )
                  | ~ ( in @ SV57 @ SV29 ) ) ) )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[511]) ).

thf(547,plain,
    ! [SV42: $i,SV29: $i,SV11: $i,SV57: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV57 @ SV11 )
                    | ~ ( in @ SV57 @ SV29 ) )
              | ( in @ SV57 @ SV42 ) ) )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[511]) ).

thf(548,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
              | ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                  | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[512]) ).

thf(549,plain,
    ! [SV34: $i,SV16: $i,SV43: $i,SV58: $i] :
      ( ( ( ~ ( ~ ( in @ SV58 @ SV43 )
              | ~ ! [SY230: $i] :
                    ~ ~ ! [SY231: $i] :
                          ~ ~ ( ~ ~ ( ~ ( in @ SY230 @ SV16 )
                                    | ~ ( in @ SY231 @ SV34 ) )
                              | ( SV58
                               != ( ordered_pair @ SY230 @ SY231 ) ) ) ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[515]) ).

thf(550,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ( ~ ~ ! [SY232: $i] :
                      ~ ~ ! [SY233: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY232 @ SV16 )
                                      | ~ ( in @ SY233 @ SV34 ) )
                                | ( SV58
                                 != ( ordered_pair @ SY232 @ SY233 ) ) )
              | ( in @ SV58 @ SV43 ) ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[515]) ).

thf(551,plain,
    ! [SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
              | ~ ! [SY234: $i] :
                    ~ ~ ! [SY235: $i] :
                          ~ ~ ( ~ ~ ( ~ ( in @ SY234 @ SV16 )
                                    | ~ ( in @ SY235 @ SV34 ) )
                              | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                               != ( ordered_pair @ SY234 @ SY235 ) ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[516]) ).

thf(552,plain,
    ! [SV18: $i,SV36: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV36 )
          | ( SV54 = SV18 ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[517]) ).

thf(553,plain,
    ! [SV36: $i,SV18: $i,SV54: $i] :
      ( ( ( ( SV54 != SV18 )
          | ( in @ SV54 @ SV36 ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[518]) ).

thf(554,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ~ ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
          | ( ( sK9_SY189 @ SV18 @ SV36 )
            = SV18 ) )
        = $false )
      | ( ( ~ ( ( ( sK9_SY189 @ SV18 @ SV36 )
               != SV18 )
              | ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[519]) ).

thf(555,plain,
    ! [SV37: $i,SV19: $i,SV45: $i,SV59: $i] :
      ( ( ( ~ ( ~ ( in @ SV59 @ SV45 )
              | ~ ( ~ ( in @ SV59 @ SV19 )
                  | ~ ~ ( in @ SV59 @ SV37 ) ) ) )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[520]) ).

thf(556,plain,
    ! [SV45: $i,SV37: $i,SV19: $i,SV59: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV59 @ SV19 )
                    | ~ ~ ( in @ SV59 @ SV37 ) )
              | ( in @ SV59 @ SV45 ) ) )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[520]) ).

thf(557,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
              | ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                  | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[521]) ).

thf(558,plain,
    ! [SV20: $i,SV50: $i,SV61: $i] :
      ( ( ( ~ ( ~ ( in @ SV61 @ SV50 )
              | ~ ! [SY242: $i] :
                    ~ ( in @ ( ordered_pair @ SY242 @ SV61 ) @ SV20 ) )
          | ~ ( ~ ~ ! [SY243: $i] :
                      ~ ( in @ ( ordered_pair @ SY243 @ SV61 ) @ SV20 )
              | ( in @ SV61 @ SV50 ) ) )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[522]) ).

thf(559,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
              | ~ ! [SY244: $i] :
                    ~ ( in @ ( ordered_pair @ SY244 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
          | ~ ( ~ ~ ! [SY245: $i] :
                      ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
              | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[523]) ).

thf(560,plain,
    ! [SV22: $i,SV2: $i,SV38: $i,SV55: $i] :
      ( ( ( ~ ( in @ SV55 @ SV38 )
          | ( in @ SV55 @ SV2 )
          | ( in @ SV55 @ SV22 ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[524]) ).

thf(561,plain,
    ! [SV38: $i,SV22: $i,SV2: $i,SV55: $i] :
      ( ( ( ~ ( ( in @ SV55 @ SV2 )
              | ( in @ SV55 @ SV22 ) )
          | ( in @ SV55 @ SV38 ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[525]) ).

thf(562,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
          | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
          | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[526]) ).

thf(563,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ( in @ SV3 @ SV39 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[527]) ).

thf(564,plain,
    ! [SV39: $i,SV3: $i,SV46: $i,SV23: $i] :
      ( ( ( in @ SV23 @ SV46 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[528]) ).

thf(565,plain,
    ! [SV46: $i,SV23: $i,SV39: $i,SV3: $i] :
      ( ( ( in @ SV3 @ SV39 )
        = $false )
      | ( ( ~ ( in @ SV23 @ SV46 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[529]) ).

thf(566,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( ~ ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 ) )
        = $false )
      | ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[530]) ).

thf(567,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
        = $false )
      | ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[530]) ).

thf(568,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
        = $true )
      | ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
        = $false )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[531]) ).

thf(569,plain,
    ! [SV6: $i,SV25: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV6 )
                | ~ ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV25 ) ) )
        = $false )
      | ( ( disjoint @ SV6 @ SV25 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[533]) ).

thf(570,plain,
    ! [SV25: $i,SV6: $i,SV62: $i] :
      ( ( ( ~ ( ~ ( in @ SV62 @ SV6 )
              | ~ ( in @ SV62 @ SV25 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[534]) ).

thf(571,plain,
    ! [SV7: $i,SV47: $i,SV60: $i] :
      ( ( ( ~ ( ~ ( in @ SV60 @ SV47 )
              | ~ ! [SY238: $i] :
                    ~ ( in @ ( ordered_pair @ SV60 @ SY238 ) @ SV7 ) ) )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[535]) ).

thf(572,plain,
    ! [SV47: $i,SV7: $i,SV60: $i] :
      ( ( ( ~ ( ~ ~ ! [SY239: $i] :
                      ~ ( in @ ( ordered_pair @ SV60 @ SY239 ) @ SV7 )
              | ( in @ SV60 @ SV47 ) ) )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[535]) ).

thf(573,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
              | ~ ! [SY240: $i] :
                    ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY240 ) @ SV7 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY241: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
              | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[536]) ).

thf(574,plain,
    ! [SV26: $i,SV8: $i,SV40: $i,SV56: $i] :
      ( ( ( ~ ( in @ SV56 @ SV40 )
          | ( SV56 = SV8 )
          | ( SV56 = SV26 ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[537]) ).

thf(575,plain,
    ! [SV40: $i,SV26: $i,SV8: $i,SV56: $i] :
      ( ( ( ~ ( ( SV56 = SV8 )
              | ( SV56 = SV26 ) )
          | ( in @ SV56 @ SV40 ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[538]) ).

thf(576,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
          | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV8 )
          | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV26 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV8 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV26 ) )
              | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[539]) ).

thf(577,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ( in @ SV9 @ SV41 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[540]) ).

thf(578,plain,
    ! [SV41: $i,SV9: $i,SV48: $i,SV27: $i] :
      ( ( ( in @ SV27 @ SV48 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[541]) ).

thf(579,plain,
    ! [SV48: $i,SV27: $i,SV41: $i,SV9: $i] :
      ( ( ( in @ SV9 @ SV41 )
        = $false )
      | ( ( ~ ( in @ SV27 @ SV48 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[542]) ).

thf(580,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV28 ) )
        = $true )
      | ( ( ~ ! [SY226: $i] :
                ~ ~ ( ~ ( in @ SV52 @ SY226 )
                    | ~ ( in @ SY226 @ SV10 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[543]) ).

thf(581,plain,
    ! [SV28: $i,SV10: $i,SV52: $i] :
      ( ( ( ~ ~ ! [SY227: $i] :
                  ~ ~ ( ~ ( in @ SV52 @ SY227 )
                      | ~ ( in @ SY227 @ SV10 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[544]) ).

thf(582,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[545]) ).

thf(583,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ! [SY228: $i] :
                ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY228 )
                    | ~ ( in @ SY228 @ SV10 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[545]) ).

thf(584,plain,
    ! [SV29: $i,SV11: $i,SV42: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV42 )
          | ~ ( ~ ( in @ SV57 @ SV11 )
              | ~ ( in @ SV57 @ SV29 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[546]) ).

thf(585,plain,
    ! [SV42: $i,SV29: $i,SV11: $i,SV57: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV57 @ SV11 )
                | ~ ( in @ SV57 @ SV29 ) )
          | ( in @ SV57 @ SV42 ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[547]) ).

thf(586,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
          | ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
              | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[548]) ).

thf(587,plain,
    ! [SV34: $i,SV16: $i,SV43: $i,SV58: $i] :
      ( ( ( ~ ( in @ SV58 @ SV43 )
          | ~ ! [SY230: $i] :
                ~ ~ ! [SY231: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY230 @ SV16 )
                                | ~ ( in @ SY231 @ SV34 ) )
                          | ( SV58
                           != ( ordered_pair @ SY230 @ SY231 ) ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[549]) ).

thf(588,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ~ ! [SY232: $i] :
                  ~ ~ ! [SY233: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY232 @ SV16 )
                                  | ~ ( in @ SY233 @ SV34 ) )
                            | ( SV58
                             != ( ordered_pair @ SY232 @ SY233 ) ) )
          | ( in @ SV58 @ SV43 ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[550]) ).

thf(589,plain,
    ! [SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ~ ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
          | ~ ! [SY234: $i] :
                ~ ~ ! [SY235: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY234 @ SV16 )
                                | ~ ( in @ SY235 @ SV34 ) )
                          | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                           != ( ordered_pair @ SY234 @ SY235 ) ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[551]) ).

thf(590,plain,
    ! [SV18: $i,SV36: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV36 ) )
        = $true )
      | ( ( SV54 = SV18 )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[552]) ).

thf(591,plain,
    ! [SV36: $i,SV18: $i,SV54: $i] :
      ( ( ( SV54 != SV18 )
        = $true )
      | ( ( in @ SV54 @ SV36 )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[553]) ).

thf(592,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ~ ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) )
        = $false )
      | ( ( ~ ( ( ( sK9_SY189 @ SV18 @ SV36 )
               != SV18 )
              | ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[554]) ).

thf(593,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ( sK9_SY189 @ SV18 @ SV36 )
          = SV18 )
        = $false )
      | ( ( ~ ( ( ( sK9_SY189 @ SV18 @ SV36 )
               != SV18 )
              | ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[554]) ).

thf(594,plain,
    ! [SV37: $i,SV19: $i,SV45: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV45 )
          | ~ ( ~ ( in @ SV59 @ SV19 )
              | ~ ~ ( in @ SV59 @ SV37 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[555]) ).

thf(595,plain,
    ! [SV45: $i,SV37: $i,SV19: $i,SV59: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV59 @ SV19 )
                | ~ ~ ( in @ SV59 @ SV37 ) )
          | ( in @ SV59 @ SV45 ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[556]) ).

thf(596,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
          | ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
              | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[557]) ).

thf(597,plain,
    ! [SV20: $i,SV50: $i,SV61: $i] :
      ( ( ( ~ ( ~ ( in @ SV61 @ SV50 )
              | ~ ! [SY242: $i] :
                    ~ ( in @ ( ordered_pair @ SY242 @ SV61 ) @ SV20 ) ) )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[558]) ).

thf(598,plain,
    ! [SV50: $i,SV20: $i,SV61: $i] :
      ( ( ( ~ ( ~ ~ ! [SY243: $i] :
                      ~ ( in @ ( ordered_pair @ SY243 @ SV61 ) @ SV20 )
              | ( in @ SV61 @ SV50 ) ) )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[558]) ).

thf(599,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
              | ~ ! [SY244: $i] :
                    ~ ( in @ ( ordered_pair @ SY244 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY245: $i] :
                      ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
              | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[559]) ).

thf(600,plain,
    ! [SV22: $i,SV2: $i,SV38: $i,SV55: $i] :
      ( ( ( ~ ( in @ SV55 @ SV38 ) )
        = $true )
      | ( ( ( in @ SV55 @ SV2 )
          | ( in @ SV55 @ SV22 ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[560]) ).

thf(601,plain,
    ! [SV38: $i,SV22: $i,SV2: $i,SV55: $i] :
      ( ( ( ~ ( ( in @ SV55 @ SV2 )
              | ( in @ SV55 @ SV22 ) ) )
        = $true )
      | ( ( in @ SV55 @ SV38 )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[561]) ).

thf(602,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[562]) ).

thf(603,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
          | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[562]) ).

thf(604,plain,
    ! [SV39: $i,SV3: $i,SV46: $i,SV23: $i] :
      ( ( ( in @ SV23 @ SV46 )
        = $false )
      | ( ( in @ SV3 @ SV39 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV3 @ SV23 ) @ ( cartesian_product2 @ SV39 @ SV46 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[565]) ).

thf(605,plain,
    ! [SV4: $i,SV24: $i] :
      ( ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV24 )
        = $true )
      | ( ( in @ ( sK5_SY156 @ SV24 @ SV4 ) @ SV4 )
        = $true )
      | ( ( SV4 = SV24 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[566]) ).

thf(606,plain,
    ! [SV6: $i,SV25: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV6 )
              | ~ ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV25 ) ) )
        = $true )
      | ( ( disjoint @ SV6 @ SV25 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[569]) ).

thf(607,plain,
    ! [SV25: $i,SV6: $i,SV62: $i] :
      ( ( ( ~ ( in @ SV62 @ SV6 )
          | ~ ( in @ SV62 @ SV25 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[570]) ).

thf(608,plain,
    ! [SV7: $i,SV47: $i,SV60: $i] :
      ( ( ( ~ ( in @ SV60 @ SV47 )
          | ~ ! [SY238: $i] :
                ~ ( in @ ( ordered_pair @ SV60 @ SY238 ) @ SV7 ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[571]) ).

thf(609,plain,
    ! [SV47: $i,SV7: $i,SV60: $i] :
      ( ( ( ~ ~ ! [SY239: $i] :
                  ~ ( in @ ( ordered_pair @ SV60 @ SY239 ) @ SV7 )
          | ( in @ SV60 @ SV47 ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[572]) ).

thf(610,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
          | ~ ! [SY240: $i] :
                ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY240 ) @ SV7 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY241: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
              | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[573]) ).

thf(611,plain,
    ! [SV26: $i,SV8: $i,SV40: $i,SV56: $i] :
      ( ( ( ~ ( in @ SV56 @ SV40 ) )
        = $true )
      | ( ( ( SV56 = SV8 )
          | ( SV56 = SV26 ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[574]) ).

thf(612,plain,
    ! [SV40: $i,SV26: $i,SV8: $i,SV56: $i] :
      ( ( ( ~ ( ( SV56 = SV8 )
              | ( SV56 = SV26 ) ) )
        = $true )
      | ( ( in @ SV56 @ SV40 )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[575]) ).

thf(613,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV8 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV26 ) )
              | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[576]) ).

thf(614,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV8 )
          | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV26 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV8 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV26 ) )
              | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[576]) ).

thf(615,plain,
    ! [SV41: $i,SV9: $i,SV48: $i,SV27: $i] :
      ( ( ( in @ SV27 @ SV48 )
        = $false )
      | ( ( in @ SV9 @ SV41 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV9 @ SV27 ) @ ( cartesian_product2 @ SV41 @ SV48 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[579]) ).

thf(616,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( in @ SV52 @ SV28 )
        = $false )
      | ( ( ~ ! [SY226: $i] :
                ~ ~ ( ~ ( in @ SV52 @ SY226 )
                    | ~ ( in @ SY226 @ SV10 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[580]) ).

thf(617,plain,
    ! [SV28: $i,SV10: $i,SV52: $i] :
      ( ( ( ~ ! [SY227: $i] :
                ~ ~ ( ~ ( in @ SV52 @ SY227 )
                    | ~ ( in @ SY227 @ SV10 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[581]) ).

thf(618,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[582]) ).

thf(619,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ! [SY228: $i] :
              ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY228 )
                  | ~ ( in @ SY228 @ SV10 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[583]) ).

thf(620,plain,
    ! [SV29: $i,SV11: $i,SV42: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV42 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV57 @ SV11 )
              | ~ ( in @ SV57 @ SV29 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[584]) ).

thf(621,plain,
    ! [SV42: $i,SV29: $i,SV11: $i,SV57: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV57 @ SV11 )
                | ~ ( in @ SV57 @ SV29 ) ) )
        = $true )
      | ( ( in @ SV57 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[585]) ).

thf(622,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[586]) ).

thf(623,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
              | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[586]) ).

thf(624,plain,
    ! [SV34: $i,SV16: $i,SV43: $i,SV58: $i] :
      ( ( ( ~ ( in @ SV58 @ SV43 ) )
        = $true )
      | ( ( ~ ! [SY230: $i] :
                ~ ~ ! [SY231: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY230 @ SV16 )
                                | ~ ( in @ SY231 @ SV34 ) )
                          | ( SV58
                           != ( ordered_pair @ SY230 @ SY231 ) ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[587]) ).

thf(625,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ~ ! [SY232: $i] :
                  ~ ~ ! [SY233: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY232 @ SV16 )
                                  | ~ ( in @ SY233 @ SV34 ) )
                            | ( SV58
                             != ( ordered_pair @ SY232 @ SY233 ) ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[588]) ).

thf(626,plain,
    ! [SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ~ ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[589]) ).

thf(627,plain,
    ! [SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ! [SY234: $i] :
                ~ ~ ! [SY235: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY234 @ SV16 )
                                | ~ ( in @ SY235 @ SV34 ) )
                          | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                           != ( ordered_pair @ SY234 @ SY235 ) ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[589]) ).

thf(628,plain,
    ! [SV18: $i,SV36: $i,SV54: $i] :
      ( ( ( in @ SV54 @ SV36 )
        = $false )
      | ( ( SV54 = SV18 )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[590]) ).

thf(629,plain,
    ! [SV36: $i,SV18: $i,SV54: $i] :
      ( ( ( SV54 = SV18 )
        = $false )
      | ( ( in @ SV54 @ SV36 )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[591]) ).

thf(630,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
        = $true )
      | ( ( ~ ( ( ( sK9_SY189 @ SV18 @ SV36 )
               != SV18 )
              | ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) ) )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[592]) ).

thf(631,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ( ( sK9_SY189 @ SV18 @ SV36 )
           != SV18 )
          | ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) )
        = $false )
      | ( ( ( sK9_SY189 @ SV18 @ SV36 )
          = SV18 )
        = $false )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[593]) ).

thf(632,plain,
    ! [SV37: $i,SV19: $i,SV45: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV45 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV59 @ SV19 )
              | ~ ~ ( in @ SV59 @ SV37 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[594]) ).

thf(633,plain,
    ! [SV45: $i,SV37: $i,SV19: $i,SV59: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV59 @ SV19 )
                | ~ ~ ( in @ SV59 @ SV37 ) ) )
        = $true )
      | ( ( in @ SV59 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[595]) ).

thf(634,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[596]) ).

thf(635,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
              | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[596]) ).

thf(636,plain,
    ! [SV20: $i,SV50: $i,SV61: $i] :
      ( ( ( ~ ( in @ SV61 @ SV50 )
          | ~ ! [SY242: $i] :
                ~ ( in @ ( ordered_pair @ SY242 @ SV61 ) @ SV20 ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[597]) ).

thf(637,plain,
    ! [SV50: $i,SV20: $i,SV61: $i] :
      ( ( ( ~ ~ ! [SY243: $i] :
                  ~ ( in @ ( ordered_pair @ SY243 @ SV61 ) @ SV20 )
          | ( in @ SV61 @ SV50 ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[598]) ).

thf(638,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ~ ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
          | ~ ! [SY244: $i] :
                ~ ( in @ ( ordered_pair @ SY244 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY245: $i] :
                      ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
              | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[599]) ).

thf(639,plain,
    ! [SV22: $i,SV2: $i,SV38: $i,SV55: $i] :
      ( ( ( in @ SV55 @ SV38 )
        = $false )
      | ( ( ( in @ SV55 @ SV2 )
          | ( in @ SV55 @ SV22 ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[600]) ).

thf(640,plain,
    ! [SV38: $i,SV22: $i,SV2: $i,SV55: $i] :
      ( ( ( ( in @ SV55 @ SV2 )
          | ( in @ SV55 @ SV22 ) )
        = $false )
      | ( ( in @ SV55 @ SV38 )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[601]) ).

thf(641,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[602]) ).

thf(642,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[603]) ).

thf(643,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
                  | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) ) )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[603]) ).

thf(644,plain,
    ! [SV6: $i,SV25: $i] :
      ( ( ( ~ ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV6 )
          | ~ ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV25 ) )
        = $false )
      | ( ( disjoint @ SV6 @ SV25 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[606]) ).

thf(645,plain,
    ! [SV25: $i,SV6: $i,SV62: $i] :
      ( ( ( ~ ( in @ SV62 @ SV6 ) )
        = $true )
      | ( ( ~ ( in @ SV62 @ SV25 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[607]) ).

thf(646,plain,
    ! [SV7: $i,SV47: $i,SV60: $i] :
      ( ( ( ~ ( in @ SV60 @ SV47 ) )
        = $true )
      | ( ( ~ ! [SY238: $i] :
                ~ ( in @ ( ordered_pair @ SV60 @ SY238 ) @ SV7 ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[608]) ).

thf(647,plain,
    ! [SV47: $i,SV7: $i,SV60: $i] :
      ( ( ( ~ ~ ! [SY239: $i] :
                  ~ ( in @ ( ordered_pair @ SV60 @ SY239 ) @ SV7 ) )
        = $true )
      | ( ( in @ SV60 @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[609]) ).

thf(648,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY241: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
              | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[610]) ).

thf(649,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ! [SY240: $i] :
                ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY240 ) @ SV7 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY241: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
              | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[610]) ).

thf(650,plain,
    ! [SV26: $i,SV8: $i,SV40: $i,SV56: $i] :
      ( ( ( in @ SV56 @ SV40 )
        = $false )
      | ( ( ( SV56 = SV8 )
          | ( SV56 = SV26 ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[611]) ).

thf(651,plain,
    ! [SV40: $i,SV26: $i,SV8: $i,SV56: $i] :
      ( ( ( ( SV56 = SV8 )
          | ( SV56 = SV26 ) )
        = $false )
      | ( ( in @ SV56 @ SV40 )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[612]) ).

thf(652,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV8 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV26 ) )
              | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[613]) ).

thf(653,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV8 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV8 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV26 ) )
              | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[614]) ).

thf(654,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV26 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV8 )
                  | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                    = SV26 ) )
              | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) ) )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[614]) ).

thf(655,plain,
    ! [SV28: $i,SV10: $i,SV52: $i] :
      ( ( ( ! [SY226: $i] :
              ~ ~ ( ~ ( in @ SV52 @ SY226 )
                  | ~ ( in @ SY226 @ SV10 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV28 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[616]) ).

thf(656,plain,
    ! [SV28: $i,SV10: $i,SV52: $i] :
      ( ( ( ! [SY227: $i] :
              ~ ~ ( ~ ( in @ SV52 @ SY227 )
                  | ~ ( in @ SY227 @ SV10 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[617]) ).

thf(657,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ~ ! [SY229: $i] :
                  ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                      | ~ ( in @ SY229 @ SV10 ) )
          | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[618]) ).

thf(658,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
                | ~ ( in @ SV63 @ SV10 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[619]) ).

thf(659,plain,
    ! [SV29: $i,SV11: $i,SV42: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV42 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV57 @ SV11 )
              | ~ ( in @ SV57 @ SV29 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[620]) ).

thf(660,plain,
    ! [SV42: $i,SV29: $i,SV11: $i,SV57: $i] :
      ( ( ( ~ ( ~ ( in @ SV57 @ SV11 )
              | ~ ( in @ SV57 @ SV29 ) ) )
        = $false )
      | ( ( in @ SV57 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[621]) ).

thf(661,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[622]) ).

thf(662,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
          | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[623]) ).

thf(663,plain,
    ! [SV34: $i,SV16: $i,SV43: $i,SV58: $i] :
      ( ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( ~ ! [SY230: $i] :
                ~ ~ ! [SY231: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY230 @ SV16 )
                                | ~ ( in @ SY231 @ SV34 ) )
                          | ( SV58
                           != ( ordered_pair @ SY230 @ SY231 ) ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[624]) ).

thf(664,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ! [SY232: $i] :
                ~ ~ ! [SY233: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY232 @ SV16 )
                                | ~ ( in @ SY233 @ SV34 ) )
                          | ( SV58
                           != ( ordered_pair @ SY232 @ SY233 ) ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[625]) ).

thf(665,plain,
    ! [SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[626]) ).

thf(666,plain,
    ! [SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ! [SY234: $i] :
              ~ ~ ! [SY235: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY234 @ SV16 )
                              | ~ ( in @ SY235 @ SV34 ) )
                        | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                         != ( ordered_pair @ SY234 @ SY235 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[627]) ).

thf(667,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ( ( sK9_SY189 @ SV18 @ SV36 )
           != SV18 )
          | ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 ) )
        = $false )
      | ( ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[630]) ).

thf(668,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ( sK9_SY189 @ SV18 @ SV36 )
         != SV18 )
        = $false )
      | ( ( ( sK9_SY189 @ SV18 @ SV36 )
          = SV18 )
        = $false )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[631]) ).

thf(669,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
        = $false )
      | ( ( ( sK9_SY189 @ SV18 @ SV36 )
          = SV18 )
        = $false )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[631]) ).

thf(670,plain,
    ! [SV37: $i,SV19: $i,SV45: $i,SV59: $i] :
      ( ( ( in @ SV59 @ SV45 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV59 @ SV19 )
              | ~ ~ ( in @ SV59 @ SV37 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[632]) ).

thf(671,plain,
    ! [SV45: $i,SV37: $i,SV19: $i,SV59: $i] :
      ( ( ( ~ ( ~ ( in @ SV59 @ SV19 )
              | ~ ~ ( in @ SV59 @ SV37 ) ) )
        = $false )
      | ( ( in @ SV59 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[633]) ).

thf(672,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[634]) ).

thf(673,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
          | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[635]) ).

thf(674,plain,
    ! [SV20: $i,SV50: $i,SV61: $i] :
      ( ( ( ~ ( in @ SV61 @ SV50 ) )
        = $true )
      | ( ( ~ ! [SY242: $i] :
                ~ ( in @ ( ordered_pair @ SY242 @ SV61 ) @ SV20 ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[636]) ).

thf(675,plain,
    ! [SV50: $i,SV20: $i,SV61: $i] :
      ( ( ( ~ ~ ! [SY243: $i] :
                  ~ ( in @ ( ordered_pair @ SY243 @ SV61 ) @ SV20 ) )
        = $true )
      | ( ( in @ SV61 @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[637]) ).

thf(676,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ~ ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY245: $i] :
                      ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
              | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[638]) ).

thf(677,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ~ ! [SY244: $i] :
                ~ ( in @ ( ordered_pair @ SY244 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY245: $i] :
                      ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
              | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[638]) ).

thf(678,plain,
    ! [SV38: $i,SV22: $i,SV2: $i,SV55: $i] :
      ( ( ( in @ SV55 @ SV2 )
        = $true )
      | ( ( in @ SV55 @ SV22 )
        = $true )
      | ( ( in @ SV55 @ SV38 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[639]) ).

thf(679,plain,
    ! [SV22: $i,SV38: $i,SV2: $i,SV55: $i] :
      ( ( ( in @ SV55 @ SV2 )
        = $false )
      | ( ( in @ SV55 @ SV38 )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[640]) ).

thf(680,plain,
    ! [SV2: $i,SV38: $i,SV22: $i,SV55: $i] :
      ( ( ( in @ SV55 @ SV22 )
        = $false )
      | ( ( in @ SV55 @ SV38 )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[640]) ).

thf(681,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
          | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) )
        = $false )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[641]) ).

thf(682,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
          | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) )
        = $false )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[642]) ).

thf(683,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
          | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 ) )
        = $false )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[643]) ).

thf(684,plain,
    ! [SV6: $i,SV25: $i] :
      ( ( ( ~ ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV6 ) )
        = $false )
      | ( ( disjoint @ SV6 @ SV25 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[644]) ).

thf(685,plain,
    ! [SV6: $i,SV25: $i] :
      ( ( ( ~ ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV25 ) )
        = $false )
      | ( ( disjoint @ SV6 @ SV25 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[644]) ).

thf(686,plain,
    ! [SV25: $i,SV6: $i,SV62: $i] :
      ( ( ( in @ SV62 @ SV6 )
        = $false )
      | ( ( ~ ( in @ SV62 @ SV25 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[645]) ).

thf(687,plain,
    ! [SV7: $i,SV47: $i,SV60: $i] :
      ( ( ( in @ SV60 @ SV47 )
        = $false )
      | ( ( ~ ! [SY238: $i] :
                ~ ( in @ ( ordered_pair @ SV60 @ SY238 ) @ SV7 ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[646]) ).

thf(688,plain,
    ! [SV47: $i,SV7: $i,SV60: $i] :
      ( ( ( ~ ! [SY239: $i] :
                ~ ( in @ ( ordered_pair @ SV60 @ SY239 ) @ SV7 ) )
        = $false )
      | ( ( in @ SV60 @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[647]) ).

thf(689,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY241: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
              | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[648]) ).

thf(690,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ! [SY240: $i] :
              ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY240 ) @ SV7 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY241: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
              | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[649]) ).

thf(691,plain,
    ! [SV40: $i,SV26: $i,SV8: $i,SV56: $i] :
      ( ( ( SV56 = SV8 )
        = $true )
      | ( ( SV56 = SV26 )
        = $true )
      | ( ( in @ SV56 @ SV40 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[650]) ).

thf(692,plain,
    ! [SV26: $i,SV40: $i,SV8: $i,SV56: $i] :
      ( ( ( SV56 = SV8 )
        = $false )
      | ( ( in @ SV56 @ SV40 )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[651]) ).

thf(693,plain,
    ! [SV8: $i,SV40: $i,SV26: $i,SV56: $i] :
      ( ( ( SV56 = SV26 )
        = $false )
      | ( ( in @ SV56 @ SV40 )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[651]) ).

thf(694,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV8 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV26 ) )
          | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) )
        = $false )
      | ( ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[652]) ).

thf(695,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV8 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV26 ) )
          | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) )
        = $false )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV8 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[653]) ).

thf(696,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV8 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV26 ) )
          | ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 ) )
        = $false )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV26 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[654]) ).

thf(697,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV52 @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) )
                | ~ ( in @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) @ SV10 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV28 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[655]) ).

thf(698,plain,
    ! [SV28: $i,SV10: $i,SV64: $i,SV52: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV52 @ SV64 )
                | ~ ( in @ SV64 @ SV10 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[656]) ).

thf(699,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ~ ! [SY229: $i] :
                  ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                      | ~ ( in @ SY229 @ SV10 ) ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[657]) ).

thf(700,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[657]) ).

thf(701,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
              | ~ ( in @ SV63 @ SV10 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[658]) ).

thf(702,plain,
    ! [SV42: $i,SV29: $i,SV11: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV11 )
          | ~ ( in @ SV57 @ SV29 ) )
        = $false )
      | ( ( in @ SV57 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[659]) ).

thf(703,plain,
    ! [SV42: $i,SV29: $i,SV11: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV11 )
          | ~ ( in @ SV57 @ SV29 ) )
        = $true )
      | ( ( in @ SV57 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[660]) ).

thf(704,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
          | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[661]) ).

thf(705,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[662]) ).

thf(706,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i] :
      ( ( ( ! [SY230: $i] :
              ~ ~ ! [SY231: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY230 @ SV16 )
                              | ~ ( in @ SY231 @ SV34 ) )
                        | ( SV58
                         != ( ordered_pair @ SY230 @ SY231 ) ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[663]) ).

thf(707,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i] :
      ( ( ( ! [SY232: $i] :
              ~ ~ ! [SY233: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY232 @ SV16 )
                              | ~ ( in @ SY233 @ SV34 ) )
                        | ( SV58
                         != ( ordered_pair @ SY232 @ SY233 ) ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[664]) ).

thf(708,plain,
    ! [SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ~ ! [SY236: $i] :
                  ~ ~ ! [SY237: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                  | ~ ( in @ SY237 @ SV34 ) )
                            | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                             != ( ordered_pair @ SY236 @ SY237 ) ) )
          | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[665]) ).

thf(709,plain,
    ! [SV43: $i,SV34: $i,SV16: $i,SV65: $i] :
      ( ( ( ~ ~ ! [SY246: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ SV65 @ SV16 )
                            | ~ ( in @ SY246 @ SV34 ) )
                      | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                       != ( ordered_pair @ SV65 @ SY246 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[666]) ).

thf(710,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ( sK9_SY189 @ SV18 @ SV36 )
         != SV18 )
        = $false )
      | ( ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[667]) ).

thf(711,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
        = $false )
      | ( ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[667]) ).

thf(712,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ( sK9_SY189 @ SV18 @ SV36 )
          = SV18 )
        = $true )
      | ( ( ( sK9_SY189 @ SV18 @ SV36 )
          = SV18 )
        = $false )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[668]) ).

thf(713,plain,
    ! [SV45: $i,SV37: $i,SV19: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV19 )
          | ~ ~ ( in @ SV59 @ SV37 ) )
        = $false )
      | ( ( in @ SV59 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[670]) ).

thf(714,plain,
    ! [SV45: $i,SV37: $i,SV19: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV19 )
          | ~ ~ ( in @ SV59 @ SV37 ) )
        = $true )
      | ( ( in @ SV59 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[671]) ).

thf(715,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
          | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[672]) ).

thf(716,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 ) )
        = $true )
      | ( ( ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[673]) ).

thf(717,plain,
    ! [SV20: $i,SV50: $i,SV61: $i] :
      ( ( ( in @ SV61 @ SV50 )
        = $false )
      | ( ( ~ ! [SY242: $i] :
                ~ ( in @ ( ordered_pair @ SY242 @ SV61 ) @ SV20 ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[674]) ).

thf(718,plain,
    ! [SV50: $i,SV20: $i,SV61: $i] :
      ( ( ( ~ ! [SY243: $i] :
                ~ ( in @ ( ordered_pair @ SY243 @ SV61 ) @ SV20 ) )
        = $false )
      | ( ( in @ SV61 @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[675]) ).

thf(719,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY245: $i] :
                      ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
              | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[676]) ).

thf(720,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ! [SY244: $i] :
              ~ ( in @ ( ordered_pair @ SY244 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY245: $i] :
                      ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
              | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[677]) ).

thf(721,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) ) )
        = $false )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[681]) ).

thf(722,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
        = $false )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[681]) ).

thf(723,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) ) )
        = $false )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[682]) ).

thf(724,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
        = $false )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[682]) ).

thf(725,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ~ ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
              | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) ) )
        = $false )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[683]) ).

thf(726,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
        = $false )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[683]) ).

thf(727,plain,
    ! [SV6: $i,SV25: $i] :
      ( ( ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV6 )
        = $true )
      | ( ( disjoint @ SV6 @ SV25 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[684]) ).

thf(728,plain,
    ! [SV6: $i,SV25: $i] :
      ( ( ( in @ ( sK17_SY157 @ SV25 @ SV6 ) @ SV25 )
        = $true )
      | ( ( disjoint @ SV6 @ SV25 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[685]) ).

thf(729,plain,
    ! [SV6: $i,SV25: $i,SV62: $i] :
      ( ( ( in @ SV62 @ SV25 )
        = $false )
      | ( ( in @ SV62 @ SV6 )
        = $false )
      | ( ( ~ ( disjoint @ SV6 @ SV25 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[686]) ).

thf(730,plain,
    ! [SV47: $i,SV7: $i,SV60: $i] :
      ( ( ( ! [SY238: $i] :
              ~ ( in @ ( ordered_pair @ SV60 @ SY238 ) @ SV7 ) )
        = $false )
      | ( ( in @ SV60 @ SV47 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[687]) ).

thf(731,plain,
    ! [SV47: $i,SV7: $i,SV60: $i] :
      ( ( ( ! [SY239: $i] :
              ~ ( in @ ( ordered_pair @ SV60 @ SY239 ) @ SV7 ) )
        = $true )
      | ( ( in @ SV60 @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[688]) ).

thf(732,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ~ ! [SY241: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
          | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) )
        = $false )
      | ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[689]) ).

thf(733,plain,
    ! [SV66: $i,SV47: $i,SV7: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV66 ) @ SV7 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY241: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
              | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[690]) ).

thf(734,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV8 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV26 ) ) )
        = $false )
      | ( ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[694]) ).

thf(735,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
        = $false )
      | ( ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[694]) ).

thf(736,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV8 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV26 ) ) )
        = $false )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV8 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[695]) ).

thf(737,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
        = $false )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV8 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[695]) ).

thf(738,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ~ ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV8 )
              | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
                = SV26 ) ) )
        = $false )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV26 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[696]) ).

thf(739,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
        = $false )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV26 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[696]) ).

thf(740,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( in @ SV52 @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) )
              | ~ ( in @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) @ SV10 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV28 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[697]) ).

thf(741,plain,
    ! [SV28: $i,SV10: $i,SV64: $i,SV52: $i] :
      ( ( ( ~ ( ~ ( in @ SV52 @ SV64 )
              | ~ ( in @ SV64 @ SV10 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[698]) ).

thf(742,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ! [SY229: $i] :
                ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                    | ~ ( in @ SY229 @ SV10 ) ) )
        = $true )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[699]) ).

thf(743,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
          | ~ ( in @ SV63 @ SV10 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[701]) ).

thf(744,plain,
    ! [SV29: $i,SV42: $i,SV11: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV11 ) )
        = $false )
      | ( ( in @ SV57 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[702]) ).

thf(745,plain,
    ! [SV11: $i,SV42: $i,SV29: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV29 ) )
        = $false )
      | ( ( in @ SV57 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[702]) ).

thf(746,plain,
    ! [SV42: $i,SV29: $i,SV11: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV11 ) )
        = $true )
      | ( ( ~ ( in @ SV57 @ SV29 ) )
        = $true )
      | ( ( in @ SV57 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[703]) ).

thf(747,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[704]) ).

thf(748,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[704]) ).

thf(749,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[705]) ).

thf(750,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ~ ~ ! [SY247: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
                            | ~ ( in @ SY247 @ SV34 ) )
                      | ( SV58
                       != ( ordered_pair @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SY247 ) ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[706]) ).

thf(751,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i,SV67: $i] :
      ( ( ( ~ ~ ! [SY248: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ SV67 @ SV16 )
                            | ~ ( in @ SY248 @ SV34 ) )
                      | ( SV58
                       != ( ordered_pair @ SV67 @ SY248 ) ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[707]) ).

thf(752,plain,
    ! [SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ~ ! [SY236: $i] :
                  ~ ~ ! [SY237: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                  | ~ ( in @ SY237 @ SV34 ) )
                            | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                             != ( ordered_pair @ SY236 @ SY237 ) ) ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[708]) ).

thf(753,plain,
    ! [SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[708]) ).

thf(754,plain,
    ! [SV43: $i,SV34: $i,SV16: $i,SV65: $i] :
      ( ( ( ~ ! [SY246: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ SV65 @ SV16 )
                          | ~ ( in @ SY246 @ SV34 ) )
                    | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                     != ( ordered_pair @ SV65 @ SY246 ) ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[709]) ).

thf(755,plain,
    ! [SV36: $i,SV18: $i] :
      ( ( ( ( sK9_SY189 @ SV18 @ SV36 )
          = SV18 )
        = $true )
      | ( ( in @ ( sK9_SY189 @ SV18 @ SV36 ) @ SV36 )
        = $true )
      | ( ( SV36
          = ( singleton @ SV18 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[710]) ).

thf(756,plain,
    ! [SV37: $i,SV45: $i,SV19: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV19 ) )
        = $false )
      | ( ( in @ SV59 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[713]) ).

thf(757,plain,
    ! [SV19: $i,SV45: $i,SV37: $i,SV59: $i] :
      ( ( ( ~ ~ ( in @ SV59 @ SV37 ) )
        = $false )
      | ( ( in @ SV59 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[713]) ).

thf(758,plain,
    ! [SV45: $i,SV37: $i,SV19: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV19 ) )
        = $true )
      | ( ( ~ ~ ( in @ SV59 @ SV37 ) )
        = $true )
      | ( ( in @ SV59 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[714]) ).

thf(759,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[715]) ).

thf(760,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[715]) ).

thf(761,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[716]) ).

thf(762,plain,
    ! [SV50: $i,SV20: $i,SV61: $i] :
      ( ( ( ! [SY242: $i] :
              ~ ( in @ ( ordered_pair @ SY242 @ SV61 ) @ SV20 ) )
        = $false )
      | ( ( in @ SV61 @ SV50 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[717]) ).

thf(763,plain,
    ! [SV50: $i,SV20: $i,SV61: $i] :
      ( ( ( ! [SY243: $i] :
              ~ ( in @ ( ordered_pair @ SY243 @ SV61 ) @ SV20 ) )
        = $true )
      | ( ( in @ SV61 @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[718]) ).

thf(764,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ~ ~ ! [SY245: $i] :
                  ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
          | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) )
        = $false )
      | ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[719]) ).

thf(765,plain,
    ! [SV50: $i,SV20: $i,SV68: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV68 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY245: $i] :
                      ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
              | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[720]) ).

thf(766,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
          | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
        = $true )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[721]) ).

thf(767,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
          | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
        = $true )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[723]) ).

thf(768,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
          | ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 ) )
        = $true )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[725]) ).

thf(769,plain,
    ! [SV62: $i,SV25: $i,SV6: $i] :
      ( ( ( disjoint @ SV6 @ SV25 )
        = $false )
      | ( ( in @ SV62 @ SV6 )
        = $false )
      | ( ( in @ SV62 @ SV25 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[729]) ).

thf(770,plain,
    ! [SV7: $i,SV47: $i,SV60: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV60 @ ( sK20_SY238 @ SV47 @ SV7 @ SV60 ) ) @ SV7 ) )
        = $false )
      | ( ( in @ SV60 @ SV47 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[730]) ).

thf(771,plain,
    ! [SV47: $i,SV7: $i,SV69: $i,SV60: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV60 @ SV69 ) @ SV7 ) )
        = $true )
      | ( ( in @ SV60 @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[731]) ).

thf(772,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ~ ! [SY241: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 ) )
        = $false )
      | ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[732]) ).

thf(773,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $false )
      | ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[732]) ).

thf(774,plain,
    ! [SV66: $i,SV47: $i,SV7: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV66 ) @ SV7 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY241: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
              | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) ) )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[733]) ).

thf(775,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV8 )
          | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV26 ) )
        = $true )
      | ( ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[734]) ).

thf(776,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV8 )
          | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV26 ) )
        = $true )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV8 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[736]) ).

thf(777,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV8 )
          | ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
            = SV26 ) )
        = $true )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV26 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[738]) ).

thf(778,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) )
          | ~ ( in @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) @ SV10 ) )
        = $false )
      | ( ( in @ SV52 @ SV28 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[740]) ).

thf(779,plain,
    ! [SV28: $i,SV10: $i,SV64: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV64 )
          | ~ ( in @ SV64 @ SV10 ) )
        = $true )
      | ( ( in @ SV52 @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[741]) ).

thf(780,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ! [SY229: $i] :
              ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                  | ~ ( in @ SY229 @ SV10 ) ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[742]) ).

thf(781,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 ) )
        = $true )
      | ( ( ~ ( in @ SV63 @ SV10 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[743]) ).

thf(782,plain,
    ! [SV29: $i,SV42: $i,SV11: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV11 )
        = $true )
      | ( ( in @ SV57 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[744]) ).

thf(783,plain,
    ! [SV11: $i,SV42: $i,SV29: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV29 )
        = $true )
      | ( ( in @ SV57 @ SV42 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[745]) ).

thf(784,plain,
    ! [SV42: $i,SV29: $i,SV11: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV11 )
        = $false )
      | ( ( ~ ( in @ SV57 @ SV29 ) )
        = $true )
      | ( ( in @ SV57 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[746]) ).

thf(785,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
              | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) ) )
        = $true )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[747]) ).

thf(786,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                    | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
              | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[749]) ).

thf(787,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ~ ! [SY247: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
                          | ~ ( in @ SY247 @ SV34 ) )
                    | ( SV58
                     != ( ordered_pair @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SY247 ) ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[750]) ).

thf(788,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i,SV67: $i] :
      ( ( ( ~ ! [SY248: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ SV67 @ SV16 )
                          | ~ ( in @ SY248 @ SV34 ) )
                    | ( SV58
                     != ( ordered_pair @ SV67 @ SY248 ) ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[751]) ).

thf(789,plain,
    ! [SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ! [SY236: $i] :
                ~ ~ ! [SY237: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                | ~ ( in @ SY237 @ SV34 ) )
                          | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                           != ( ordered_pair @ SY236 @ SY237 ) ) ) )
        = $true )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[752]) ).

thf(790,plain,
    ! [SV43: $i,SV34: $i,SV16: $i,SV65: $i] :
      ( ( ( ! [SY246: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ SV65 @ SV16 )
                        | ~ ( in @ SY246 @ SV34 ) )
                  | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                   != ( ordered_pair @ SV65 @ SY246 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[754]) ).

thf(791,plain,
    ! [SV37: $i,SV45: $i,SV19: $i,SV59: $i] :
      ( ( ( in @ SV59 @ SV19 )
        = $true )
      | ( ( in @ SV59 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[756]) ).

thf(792,plain,
    ! [SV19: $i,SV45: $i,SV37: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV37 ) )
        = $true )
      | ( ( in @ SV59 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[757]) ).

thf(793,plain,
    ! [SV45: $i,SV37: $i,SV19: $i,SV59: $i] :
      ( ( ( in @ SV59 @ SV19 )
        = $false )
      | ( ( ~ ~ ( in @ SV59 @ SV37 ) )
        = $true )
      | ( ( in @ SV59 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[758]) ).

thf(794,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
              | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) ) )
        = $true )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[759]) ).

thf(795,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[761]) ).

thf(796,plain,
    ! [SV61: $i,SV20: $i,SV50: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK21_SY242 @ SV50 @ SV20 @ SV61 ) @ SV61 ) @ SV20 ) )
        = $false )
      | ( ( in @ SV61 @ SV50 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[762]) ).

thf(797,plain,
    ! [SV50: $i,SV20: $i,SV61: $i,SV70: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV70 @ SV61 ) @ SV20 ) )
        = $true )
      | ( ( in @ SV61 @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[763]) ).

thf(798,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ~ ~ ! [SY245: $i] :
                  ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $false )
      | ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[764]) ).

thf(799,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $false )
      | ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[764]) ).

thf(800,plain,
    ! [SV50: $i,SV20: $i,SV68: $i] :
      ( ( ( in @ ( ordered_pair @ SV68 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY245: $i] :
                      ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
              | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[765]) ).

thf(801,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
        = $true )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 )
        = $true )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV38 )
        = $true )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[766]) ).

thf(802,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
        = $true )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 )
        = $true )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[767]) ).

thf(803,plain,
    ! [SV38: $i,SV2: $i,SV22: $i] :
      ( ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV2 )
        = $true )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 )
        = $true )
      | ( ( in @ ( sK10_SY194 @ SV22 @ SV2 @ SV38 ) @ SV22 )
        = $false )
      | ( ( SV38
          = ( set_union2 @ SV2 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[768]) ).

thf(804,plain,
    ! [SV7: $i,SV47: $i,SV60: $i] :
      ( ( ( in @ ( ordered_pair @ SV60 @ ( sK20_SY238 @ SV47 @ SV7 @ SV60 ) ) @ SV7 )
        = $true )
      | ( ( in @ SV60 @ SV47 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[770]) ).

thf(805,plain,
    ! [SV47: $i,SV7: $i,SV69: $i,SV60: $i] :
      ( ( ( in @ ( ordered_pair @ SV60 @ SV69 ) @ SV7 )
        = $false )
      | ( ( in @ SV60 @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $false )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[771]) ).

thf(806,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ! [SY241: $i] :
                ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 ) )
        = $true )
      | ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[772]) ).

thf(807,plain,
    ! [SV66: $i,SV47: $i,SV7: $i] :
      ( ( ( ~ ~ ! [SY241: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 )
          | ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV66 ) @ SV7 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[774]) ).

thf(808,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV8 )
        = $true )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV26 )
        = $true )
      | ( ( in @ ( sK11_SY197 @ SV26 @ SV8 @ SV40 ) @ SV40 )
        = $true )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[775]) ).

thf(809,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV8 )
        = $true )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV26 )
        = $true )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV8 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[776]) ).

thf(810,plain,
    ! [SV40: $i,SV8: $i,SV26: $i] :
      ( ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV8 )
        = $true )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV26 )
        = $true )
      | ( ( ( sK11_SY197 @ SV26 @ SV8 @ SV40 )
          = SV26 )
        = $false )
      | ( ( SV40
          = ( unordered_pair @ SV8 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[777]) ).

thf(811,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) ) )
        = $false )
      | ( ( in @ SV52 @ SV28 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[778]) ).

thf(812,plain,
    ! [SV52: $i,SV10: $i,SV28: $i] :
      ( ( ( ~ ( in @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) @ SV10 ) )
        = $false )
      | ( ( in @ SV52 @ SV28 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[778]) ).

thf(813,plain,
    ! [SV28: $i,SV10: $i,SV64: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV64 ) )
        = $true )
      | ( ( ~ ( in @ SV64 @ SV10 ) )
        = $true )
      | ( ( in @ SV52 @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[779]) ).

thf(814,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK22_SY229 @ SV28 @ SV10 ) )
                | ~ ( in @ ( sK22_SY229 @ SV28 @ SV10 ) @ SV10 ) ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[780]) ).

thf(815,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( ~ ( in @ SV63 @ SV10 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[781]) ).

thf(816,plain,
    ! [SV42: $i,SV11: $i,SV29: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV29 )
        = $false )
      | ( ( in @ SV57 @ SV11 )
        = $false )
      | ( ( in @ SV57 @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[784]) ).

thf(817,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
          | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[785]) ).

thf(818,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
          | ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[786]) ).

thf(819,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ! [SY247: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
                        | ~ ( in @ SY247 @ SV34 ) )
                  | ( SV58
                   != ( ordered_pair @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SY247 ) ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[787]) ).

thf(820,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i,SV67: $i] :
      ( ( ( ! [SY248: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ SV67 @ SV16 )
                        | ~ ( in @ SY248 @ SV34 ) )
                  | ( SV58
                   != ( ordered_pair @ SV67 @ SY248 ) ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[788]) ).

thf(821,plain,
    ! [SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ! [SY236: $i] :
              ~ ~ ! [SY237: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                              | ~ ( in @ SY237 @ SV34 ) )
                        | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                         != ( ordered_pair @ SY236 @ SY237 ) ) ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[789]) ).

thf(822,plain,
    ! [SV43: $i,SV34: $i,SV71: $i,SV16: $i,SV65: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ SV65 @ SV16 )
                      | ~ ( in @ SV71 @ SV34 ) )
                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                 != ( ordered_pair @ SV65 @ SV71 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[790]) ).

thf(823,plain,
    ! [SV19: $i,SV45: $i,SV37: $i,SV59: $i] :
      ( ( ( in @ SV59 @ SV37 )
        = $false )
      | ( ( in @ SV59 @ SV45 )
        = $false )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[792]) ).

thf(824,plain,
    ! [SV45: $i,SV19: $i,SV37: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV37 ) )
        = $false )
      | ( ( in @ SV59 @ SV19 )
        = $false )
      | ( ( in @ SV59 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[793]) ).

thf(825,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
          | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[794]) ).

thf(826,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                    | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
              | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) ) )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[795]) ).

thf(827,plain,
    ! [SV61: $i,SV20: $i,SV50: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK21_SY242 @ SV50 @ SV20 @ SV61 ) @ SV61 ) @ SV20 )
        = $true )
      | ( ( in @ SV61 @ SV50 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[796]) ).

thf(828,plain,
    ! [SV50: $i,SV20: $i,SV61: $i,SV70: $i] :
      ( ( ( in @ ( ordered_pair @ SV70 @ SV61 ) @ SV20 )
        = $false )
      | ( ( in @ SV61 @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $false )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[797]) ).

thf(829,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ~ ! [SY245: $i] :
                ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $true )
      | ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[798]) ).

thf(830,plain,
    ! [SV68: $i,SV50: $i,SV20: $i] :
      ( ( ( ~ ~ ! [SY245: $i] :
                  ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
          | ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV68 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[800]) ).

thf(831,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ! [SY241: $i] :
              ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 ) )
        = $false )
      | ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[806]) ).

thf(832,plain,
    ! [SV66: $i,SV47: $i,SV7: $i] :
      ( ( ( ~ ~ ! [SY241: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV66 ) @ SV7 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[807]) ).

thf(833,plain,
    ! [SV66: $i,SV47: $i,SV7: $i] :
      ( ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV66 ) @ SV7 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[807]) ).

thf(834,plain,
    ! [SV10: $i,SV28: $i,SV52: $i] :
      ( ( ( in @ SV52 @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) )
        = $true )
      | ( ( in @ SV52 @ SV28 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[811]) ).

thf(835,plain,
    ! [SV52: $i,SV10: $i,SV28: $i] :
      ( ( ( in @ ( sK18_SY226 @ SV28 @ SV10 @ SV52 ) @ SV10 )
        = $true )
      | ( ( in @ SV52 @ SV28 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[812]) ).

thf(836,plain,
    ! [SV28: $i,SV10: $i,SV64: $i,SV52: $i] :
      ( ( ( in @ SV52 @ SV64 )
        = $false )
      | ( ( ~ ( in @ SV64 @ SV10 ) )
        = $true )
      | ( ( in @ SV52 @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[813]) ).

thf(837,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK22_SY229 @ SV28 @ SV10 ) )
              | ~ ( in @ ( sK22_SY229 @ SV28 @ SV10 ) @ SV10 ) ) )
        = $true )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[814]) ).

thf(838,plain,
    ! [SV28: $i,SV10: $i,SV63: $i] :
      ( ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY229: $i] :
                      ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                          | ~ ( in @ SY229 @ SV10 ) )
              | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) ) )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[815]) ).

thf(839,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[817]) ).

thf(840,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[817]) ).

thf(841,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
                | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[818]) ).

thf(842,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[818]) ).

thf(843,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
                      | ~ ( in @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) @ SV34 ) )
                | ( SV58
                 != ( ordered_pair @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) ) ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[819]) ).

thf(844,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV72: $i,SV16: $i,SV67: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ SV67 @ SV16 )
                      | ~ ( in @ SV72 @ SV34 ) )
                | ( SV58
                 != ( ordered_pair @ SV67 @ SV72 ) ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[820]) ).

thf(845,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ~ ~ ! [SY249: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                            | ~ ( in @ SY249 @ SV34 ) )
                      | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                       != ( ordered_pair @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SY249 ) ) ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[821]) ).

thf(846,plain,
    ! [SV43: $i,SV34: $i,SV71: $i,SV16: $i,SV65: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV65 @ SV16 )
                    | ~ ( in @ SV71 @ SV34 ) )
              | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
               != ( ordered_pair @ SV65 @ SV71 ) ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[822]) ).

thf(847,plain,
    ! [SV45: $i,SV19: $i,SV37: $i,SV59: $i] :
      ( ( ( in @ SV59 @ SV37 )
        = $true )
      | ( ( in @ SV59 @ SV19 )
        = $false )
      | ( ( in @ SV59 @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[824]) ).

thf(848,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[825]) ).

thf(849,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[825]) ).

thf(850,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
          | ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[826]) ).

thf(851,plain,
    ! [SV50: $i,SV20: $i] :
      ( ( ( ! [SY245: $i] :
              ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $false )
      | ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[829]) ).

thf(852,plain,
    ! [SV68: $i,SV50: $i,SV20: $i] :
      ( ( ( ~ ~ ! [SY245: $i] :
                  ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV68 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[830]) ).

thf(853,plain,
    ! [SV68: $i,SV50: $i,SV20: $i] :
      ( ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV68 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[830]) ).

thf(854,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ ( sK25_SY241 @ SV47 @ SV7 ) ) @ SV7 ) )
        = $false )
      | ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[831]) ).

thf(855,plain,
    ! [SV66: $i,SV47: $i,SV7: $i] :
      ( ( ( ~ ! [SY241: $i] :
                ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV66 ) @ SV7 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[832]) ).

thf(856,plain,
    ! [SV28: $i,SV52: $i,SV10: $i,SV64: $i] :
      ( ( ( in @ SV64 @ SV10 )
        = $false )
      | ( ( in @ SV52 @ SV64 )
        = $false )
      | ( ( in @ SV52 @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[836]) ).

thf(857,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK22_SY229 @ SV28 @ SV10 ) )
          | ~ ( in @ ( sK22_SY229 @ SV28 @ SV10 ) @ SV10 ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[837]) ).

thf(858,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ~ ! [SY229: $i] :
                  ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                      | ~ ( in @ SY229 @ SV10 ) )
          | ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[838]) ).

thf(859,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $true )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[839]) ).

thf(860,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $true )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV42 )
        = $true )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[840]) ).

thf(861,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
              | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) ) )
        = $true )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[841]) ).

thf(862,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
                    | ~ ( in @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) @ SV34 ) )
              | ( SV58
               != ( ordered_pair @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) ) ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[843]) ).

thf(863,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV72: $i,SV16: $i,SV67: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV67 @ SV16 )
                    | ~ ( in @ SV72 @ SV34 ) )
              | ( SV58
               != ( ordered_pair @ SV67 @ SV72 ) ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[844]) ).

thf(864,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ~ ! [SY249: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                          | ~ ( in @ SY249 @ SV34 ) )
                    | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                     != ( ordered_pair @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SY249 ) ) ) )
        = $true )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[845]) ).

thf(865,plain,
    ! [SV43: $i,SV34: $i,SV71: $i,SV16: $i,SV65: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV65 @ SV16 )
                | ~ ( in @ SV71 @ SV34 ) )
          | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
           != ( ordered_pair @ SV65 @ SV71 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[846]) ).

thf(866,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $true )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[848]) ).

thf(867,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $true )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[849]) ).

thf(868,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
                | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[850]) ).

thf(869,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[850]) ).

thf(870,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK26_SY245 @ SV50 @ SV20 ) @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $false )
      | ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[851]) ).

thf(871,plain,
    ! [SV68: $i,SV50: $i,SV20: $i] :
      ( ( ( ~ ! [SY245: $i] :
                ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV68 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[852]) ).

thf(872,plain,
    ! [SV47: $i,SV7: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ ( sK25_SY241 @ SV47 @ SV7 ) ) @ SV7 )
        = $true )
      | ( ( in @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV47 )
        = $true )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[854]) ).

thf(873,plain,
    ! [SV66: $i,SV47: $i,SV7: $i] :
      ( ( ( ! [SY241: $i] :
              ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SY241 ) @ SV7 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV66 ) @ SV7 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[855]) ).

thf(874,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK22_SY229 @ SV28 @ SV10 ) ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[857]) ).

thf(875,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ( ~ ( in @ ( sK22_SY229 @ SV28 @ SV10 ) @ SV10 ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[857]) ).

thf(876,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ~ ! [SY229: $i] :
                  ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                      | ~ ( in @ SY229 @ SV10 ) ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[858]) ).

thf(877,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[858]) ).

thf(878,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
          | ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[861]) ).

thf(879,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
                | ~ ( in @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) @ SV34 ) )
          | ( SV58
           != ( ordered_pair @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[862]) ).

thf(880,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV72: $i,SV16: $i,SV67: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV67 @ SV16 )
                | ~ ( in @ SV72 @ SV34 ) )
          | ( SV58
           != ( ordered_pair @ SV67 @ SV72 ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[863]) ).

thf(881,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ! [SY249: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                        | ~ ( in @ SY249 @ SV34 ) )
                  | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                   != ( ordered_pair @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SY249 ) ) ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[864]) ).

thf(882,plain,
    ! [SV43: $i,SV34: $i,SV71: $i,SV16: $i,SV65: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV65 @ SV16 )
                | ~ ( in @ SV71 @ SV34 ) ) )
        = $true )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
         != ( ordered_pair @ SV65 @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[865]) ).

thf(883,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV45 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[867]) ).

thf(884,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
              | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) ) )
        = $true )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[868]) ).

thf(885,plain,
    ! [SV20: $i,SV50: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK26_SY245 @ SV50 @ SV20 ) @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $true )
      | ( ( in @ ( sK16_SY223 @ SV20 @ SV50 ) @ SV50 )
        = $true )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[870]) ).

thf(886,plain,
    ! [SV68: $i,SV50: $i,SV20: $i] :
      ( ( ( ! [SY245: $i] :
              ~ ( in @ ( ordered_pair @ SY245 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV68 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[871]) ).

thf(887,plain,
    ! [SV66: $i,SV47: $i,SV7: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ ( sK27_SY241 @ SV66 @ SV47 @ SV7 ) ) @ SV7 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV66 ) @ SV7 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[873]) ).

thf(888,plain,
    ! [SV28: $i,SV10: $i] :
      ( ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK22_SY229 @ SV28 @ SV10 ) )
        = $true )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[874]) ).

thf(889,plain,
    ! [SV10: $i,SV28: $i] :
      ( ( ( in @ ( sK22_SY229 @ SV28 @ SV10 ) @ SV10 )
        = $true )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV28 )
        = $true )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[875]) ).

thf(890,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ! [SY229: $i] :
                ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                    | ~ ( in @ SY229 @ SV10 ) ) )
        = $true )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[876]) ).

thf(891,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[878]) ).

thf(892,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( ~ ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 ) )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[878]) ).

thf(893,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
                | ~ ( in @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) @ SV34 ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[879]) ).

thf(894,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV58: $i] :
      ( ( ( SV58
         != ( ordered_pair @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[879]) ).

thf(895,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV72: $i,SV16: $i,SV67: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV67 @ SV16 )
                | ~ ( in @ SV72 @ SV34 ) ) )
        = $true )
      | ( ( SV58
         != ( ordered_pair @ SV67 @ SV72 ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[880]) ).

thf(896,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                      | ~ ( in @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) @ SV34 ) )
                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                 != ( ordered_pair @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) ) ) ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[881]) ).

thf(897,plain,
    ! [SV43: $i,SV34: $i,SV71: $i,SV16: $i,SV65: $i] :
      ( ( ( ~ ( ~ ( in @ SV65 @ SV16 )
              | ~ ( in @ SV71 @ SV34 ) ) )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
         != ( ordered_pair @ SV65 @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[882]) ).

thf(898,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
          | ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[884]) ).

thf(899,plain,
    ! [SV20: $i,SV50: $i,SV68: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK29_SY245 @ SV68 @ SV50 @ SV20 ) @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV68 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[886]) ).

thf(900,plain,
    ! [SV66: $i,SV47: $i,SV7: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ ( sK27_SY241 @ SV66 @ SV47 @ SV7 ) ) @ SV7 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK15_SY217 @ SV7 @ SV47 ) @ SV66 ) @ SV7 )
        = $false )
      | ( ( SV47
          = ( relation_dom @ SV7 ) )
        = $true )
      | ( ( relation @ SV7 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[887]) ).

thf(901,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ! [SY229: $i] :
              ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SY229 )
                  | ~ ( in @ SY229 @ SV10 ) ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[890]) ).

thf(902,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $true )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[891]) ).

thf(903,plain,
    ! [SV42: $i,SV11: $i,SV29: $i] :
      ( ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $true )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK12_SY200 @ SV29 @ SV11 @ SV42 ) @ SV29 )
        = $false )
      | ( ( SV42
          = ( set_intersection2 @ SV11 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[892]) ).

thf(904,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
              | ~ ( in @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) @ SV34 ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[893]) ).

thf(905,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV58: $i] :
      ( ( ( SV58
          = ( ordered_pair @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[894]) ).

thf(906,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV72: $i,SV16: $i,SV67: $i] :
      ( ( ( ~ ( ~ ( in @ SV67 @ SV16 )
              | ~ ( in @ SV72 @ SV34 ) ) )
        = $false )
      | ( ( SV58
         != ( ordered_pair @ SV67 @ SV72 ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[895]) ).

thf(907,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                    | ~ ( in @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) @ SV34 ) )
              | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
               != ( ordered_pair @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[896]) ).

thf(908,plain,
    ! [SV43: $i,SV34: $i,SV71: $i,SV16: $i,SV65: $i] :
      ( ( ( ~ ( in @ SV65 @ SV16 )
          | ~ ( in @ SV71 @ SV34 ) )
        = $true )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
         != ( ordered_pair @ SV65 @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[897]) ).

thf(909,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[898]) ).

thf(910,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[898]) ).

thf(911,plain,
    ! [SV20: $i,SV50: $i,SV68: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK29_SY245 @ SV68 @ SV50 @ SV20 ) @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV68 @ ( sK16_SY223 @ SV20 @ SV50 ) ) @ SV20 )
        = $false )
      | ( ( SV50
          = ( relation_rng @ SV20 ) )
        = $true )
      | ( ( relation @ SV20 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[899]) ).

thf(912,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) )
                | ~ ( in @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) @ SV10 ) ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[901]) ).

thf(913,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
          | ~ ( in @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) @ SV34 ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[904]) ).

thf(914,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV72: $i,SV16: $i,SV67: $i] :
      ( ( ( ~ ( in @ SV67 @ SV16 )
          | ~ ( in @ SV72 @ SV34 ) )
        = $true )
      | ( ( SV58
         != ( ordered_pair @ SV67 @ SV72 ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[906]) ).

thf(915,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                | ~ ( in @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) @ SV34 ) )
          | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
           != ( ordered_pair @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) ) ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[907]) ).

thf(916,plain,
    ! [SV43: $i,SV34: $i,SV71: $i,SV16: $i,SV65: $i] :
      ( ( ( ~ ( in @ SV65 @ SV16 ) )
        = $true )
      | ( ( ~ ( in @ SV71 @ SV34 ) )
        = $true )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
         != ( ordered_pair @ SV65 @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[908]) ).

thf(917,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $true )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[909]) ).

thf(918,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 ) )
        = $true )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[910]) ).

thf(919,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) )
              | ~ ( in @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) @ SV10 ) ) )
        = $true )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[912]) ).

thf(920,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( ~ ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[913]) ).

thf(921,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ( in @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) @ SV34 ) )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[913]) ).

thf(922,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV72: $i,SV16: $i,SV67: $i] :
      ( ( ( ~ ( in @ SV67 @ SV16 ) )
        = $true )
      | ( ( ~ ( in @ SV72 @ SV34 ) )
        = $true )
      | ( ( SV58
         != ( ordered_pair @ SV67 @ SV72 ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[914]) ).

thf(923,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                | ~ ( in @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) @ SV34 ) ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[915]) ).

thf(924,plain,
    ! [SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
         != ( ordered_pair @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[915]) ).

thf(925,plain,
    ! [SV43: $i,SV34: $i,SV71: $i,SV16: $i,SV65: $i] :
      ( ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ~ ( in @ SV71 @ SV34 ) )
        = $true )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
         != ( ordered_pair @ SV65 @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[916]) ).

thf(926,plain,
    ! [SV45: $i,SV19: $i,SV37: $i] :
      ( ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV19 )
        = $false )
      | ( ( in @ ( sK14_SY213 @ SV37 @ SV19 @ SV45 ) @ SV37 )
        = $true )
      | ( ( SV45
          = ( set_difference @ SV19 @ SV37 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[918]) ).

thf(927,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) )
          | ~ ( in @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) @ SV10 ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[919]) ).

thf(928,plain,
    ! [SV16: $i,SV34: $i,SV58: $i,SV43: $i] :
      ( ( ( in @ ( sK19_SY230 @ SV43 @ SV58 @ SV34 @ SV16 ) @ SV16 )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[920]) ).

thf(929,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV16: $i] :
      ( ( ( in @ ( sK23_SY247 @ SV16 @ SV34 @ SV58 @ SV43 ) @ SV34 )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[921]) ).

thf(930,plain,
    ! [SV43: $i,SV58: $i,SV34: $i,SV72: $i,SV16: $i,SV67: $i] :
      ( ( ( in @ SV67 @ SV16 )
        = $false )
      | ( ( ~ ( in @ SV72 @ SV34 ) )
        = $true )
      | ( ( SV58
         != ( ordered_pair @ SV67 @ SV72 ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[922]) ).

thf(931,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
              | ~ ( in @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) @ SV34 ) ) )
        = $true )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[923]) ).

thf(932,plain,
    ! [SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) ) )
        = $true )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[924]) ).

thf(933,plain,
    ! [SV43: $i,SV16: $i,SV65: $i,SV34: $i,SV71: $i] :
      ( ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
         != ( ordered_pair @ SV65 @ SV71 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[925]) ).

thf(934,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( ~ ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[927]) ).

thf(935,plain,
    ! [SV10: $i,SV28: $i,SV63: $i] :
      ( ( ( ~ ( in @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) @ SV10 ) )
        = $false )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[927]) ).

thf(936,plain,
    ! [SV43: $i,SV58: $i,SV16: $i,SV67: $i,SV34: $i,SV72: $i] :
      ( ( ( in @ SV72 @ SV34 )
        = $false )
      | ( ( in @ SV67 @ SV16 )
        = $false )
      | ( ( SV58
         != ( ordered_pair @ SV67 @ SV72 ) )
        = $true )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[930]) ).

thf(937,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
          | ~ ( in @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) @ SV34 ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[931]) ).

thf(938,plain,
    ! [SV71: $i,SV65: $i,SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY236: $i] :
                      ~ ~ ! [SY237: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                      | ~ ( in @ SY237 @ SV34 ) )
                                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                                 != ( ordered_pair @ SY236 @ SY237 ) ) )
              | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) ) )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[933]) ).

thf(939,plain,
    ! [SV63: $i,SV28: $i,SV10: $i] :
      ( ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) )
        = $true )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[934]) ).

thf(940,plain,
    ! [SV10: $i,SV28: $i,SV63: $i] :
      ( ( ( in @ ( sK30_SY229 @ SV63 @ SV28 @ SV10 ) @ SV10 )
        = $true )
      | ( ( in @ ( sK7_SY167 @ SV10 @ SV28 ) @ SV63 )
        = $false )
      | ( ( in @ SV63 @ SV10 )
        = $false )
      | ( ( SV28
          = ( union @ SV10 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[935]) ).

thf(941,plain,
    ! [SV43: $i,SV34: $i,SV16: $i,SV72: $i,SV67: $i,SV58: $i] :
      ( ( ( SV58
          = ( ordered_pair @ SV67 @ SV72 ) )
        = $false )
      | ( ( in @ SV67 @ SV16 )
        = $false )
      | ( ( in @ SV72 @ SV34 )
        = $false )
      | ( ( in @ SV58 @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[936]) ).

thf(942,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( ~ ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[937]) ).

thf(943,plain,
    ! [SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ( in @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) @ SV34 ) )
        = $false )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[937]) ).

thf(944,plain,
    ! [SV65: $i,SV71: $i,SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ~ ! [SY236: $i] :
                  ~ ~ ! [SY237: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                  | ~ ( in @ SY237 @ SV34 ) )
                            | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                             != ( ordered_pair @ SY236 @ SY237 ) ) )
          | ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[938]) ).

thf(945,plain,
    ! [SV16: $i,SV34: $i,SV43: $i] :
      ( ( ( in @ ( sK24_SY236 @ SV43 @ SV34 @ SV16 ) @ SV16 )
        = $true )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[942]) ).

thf(946,plain,
    ! [SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( in @ ( sK28_SY249 @ SV16 @ SV34 @ SV43 ) @ SV34 )
        = $true )
      | ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $true )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[943]) ).

thf(947,plain,
    ! [SV65: $i,SV71: $i,SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ~ ! [SY236: $i] :
                  ~ ~ ! [SY237: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                  | ~ ( in @ SY237 @ SV34 ) )
                            | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                             != ( ordered_pair @ SY236 @ SY237 ) ) ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[944]) ).

thf(948,plain,
    ! [SV65: $i,SV71: $i,SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( in @ ( sK13_SY206 @ SV34 @ SV16 @ SV43 ) @ SV43 )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[944]) ).

thf(949,plain,
    ! [SV65: $i,SV71: $i,SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ! [SY236: $i] :
                ~ ~ ! [SY237: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                                | ~ ( in @ SY237 @ SV34 ) )
                          | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                           != ( ordered_pair @ SY236 @ SY237 ) ) ) )
        = $true )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[947]) ).

thf(950,plain,
    ! [SV65: $i,SV71: $i,SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ! [SY236: $i] :
              ~ ~ ! [SY237: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY236 @ SV16 )
                              | ~ ( in @ SY237 @ SV34 ) )
                        | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                         != ( ordered_pair @ SY236 @ SY237 ) ) ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[949]) ).

thf(951,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ~ ~ ! [SY250: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                            | ~ ( in @ SY250 @ SV34 ) )
                      | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                       != ( ordered_pair @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SY250 ) ) ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[950]) ).

thf(952,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ~ ! [SY250: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                          | ~ ( in @ SY250 @ SV34 ) )
                    | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                     != ( ordered_pair @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SY250 ) ) ) )
        = $true )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[951]) ).

thf(953,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ! [SY250: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                        | ~ ( in @ SY250 @ SV34 ) )
                  | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                   != ( ordered_pair @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SY250 ) ) ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[952]) ).

thf(954,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                      | ~ ( in @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) @ SV34 ) )
                | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
                 != ( ordered_pair @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) ) ) ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[953]) ).

thf(955,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                    | ~ ( in @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) @ SV34 ) )
              | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
               != ( ordered_pair @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) ) ) ) )
        = $true )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[954]) ).

thf(956,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                | ~ ( in @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) @ SV34 ) )
          | ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
           != ( ordered_pair @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) ) ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[955]) ).

thf(957,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
                | ~ ( in @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) @ SV34 ) ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[956]) ).

thf(958,plain,
    ! [SV71: $i,SV65: $i,SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
         != ( ordered_pair @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[956]) ).

thf(959,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
              | ~ ( in @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) @ SV34 ) ) )
        = $true )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[957]) ).

thf(960,plain,
    ! [SV71: $i,SV65: $i,SV43: $i,SV16: $i,SV34: $i] :
      ( ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) ) )
        = $true )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[958]) ).

thf(961,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
          | ~ ( in @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) @ SV34 ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[959]) ).

thf(962,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( ~ ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[961]) ).

thf(963,plain,
    ! [SV65: $i,SV71: $i,SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( ~ ( in @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) @ SV34 ) )
        = $false )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[961]) ).

thf(964,plain,
    ! [SV16: $i,SV34: $i,SV43: $i,SV71: $i,SV65: $i] :
      ( ( ( in @ ( sK31_SY236 @ SV65 @ SV71 @ SV43 @ SV34 @ SV16 ) @ SV16 )
        = $true )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[962]) ).

thf(965,plain,
    ! [SV65: $i,SV71: $i,SV43: $i,SV34: $i,SV16: $i] :
      ( ( ( in @ ( sK32_SY250 @ SV16 @ SV34 @ SV43 @ SV71 @ SV65 ) @ SV34 )
        = $true )
      | ( ( in @ SV71 @ SV34 )
        = $false )
      | ( ( in @ SV65 @ SV16 )
        = $false )
      | ( ( ( sK13_SY206 @ SV34 @ SV16 @ SV43 )
          = ( ordered_pair @ SV65 @ SV71 ) )
        = $false )
      | ( ( SV43
          = ( cartesian_product2 @ SV16 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[963]) ).

thf(966,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[206,965,964,960,948,946,945,941,940,939,932,929,928,926,917,911,905,903,902,900,889,888,885,883,877,872,869,866,860,859,856,853,847,842,835,834,833,828,827,823,816,810,809,808,805,804,803,802,801,799,791,783,782,773,769,760,755,753,748,739,737,735,728,727,726,724,722,712,711,700,693,692,691,680,679,678,669,629,628,615,605,604,578,577,568,567,564,563,532,514,513,487,486,483,438,437,422,400,399,357,329,291,249,226,225,219,218,217,216,215,214,213,212,211,210,209,208,207]) ).

thf(967,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[179]) ).

thf(968,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[178]) ).

thf(969,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( ordered_pair @ A @ B )
            = ( ordered_pair @ C @ D ) )
         => ( ( A = C )
            & ( B = D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[177]) ).

thf(970,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)],[176]) ).

thf(971,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[175]) ).

thf(972,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[174]) ).

thf(973,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[173]) ).

thf(974,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)],[172]) ).

thf(975,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)],[171]) ).

thf(976,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( cartesian_product2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ? [E: $i,F: $i] :
                  ( ( in @ E @ A )
                  & ( in @ F @ B )
                  & ( D
                    = ( ordered_pair @ E @ F ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(977,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[169]) ).

thf(978,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)],[168]) ).

thf(979,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( B
                = ( relation_dom @ A ) )
            <=> ! [C: $i] :
                  ( ( in @ C @ B )
                <=> ? [D: $i] : ( in @ ( ordered_pair @ C @ D ) @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[167]) ).

thf(980,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)],[166]) ).

thf(981,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)],[165]) ).

thf(982,plain,
    ( ( ! [A: $i] :
          ( ( relation @ A )
         => ! [B: $i] :
              ( ( B
                = ( relation_rng @ A ) )
            <=> ! [C: $i] :
                  ( ( in @ C @ B )
                <=> ? [D: $i] : ( in @ ( ordered_pair @ D @ C ) @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[164]) ).

thf(983,plain,
    $true = $true,
    inference(copy,[status(thm)],[163]) ).

thf(984,plain,
    $true = $true,
    inference(copy,[status(thm)],[162]) ).

thf(985,plain,
    $true = $true,
    inference(copy,[status(thm)],[161]) ).

thf(986,plain,
    $true = $true,
    inference(copy,[status(thm)],[160]) ).

thf(987,plain,
    $true = $true,
    inference(copy,[status(thm)],[159]) ).

thf(988,plain,
    $true = $true,
    inference(copy,[status(thm)],[158]) ).

thf(989,plain,
    $true = $true,
    inference(copy,[status(thm)],[157]) ).

thf(990,plain,
    $true = $true,
    inference(copy,[status(thm)],[156]) ).

thf(991,plain,
    $true = $true,
    inference(copy,[status(thm)],[155]) ).

thf(992,plain,
    $true = $true,
    inference(copy,[status(thm)],[154]) ).

thf(993,plain,
    $true = $true,
    inference(copy,[status(thm)],[153]) ).

thf(994,plain,
    $true = $true,
    inference(copy,[status(thm)],[152]) ).

thf(995,plain,
    $true = $true,
    inference(copy,[status(thm)],[151]) ).

thf(996,plain,
    $true = $true,
    inference(copy,[status(thm)],[150]) ).

thf(997,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[149]) ).

thf(998,plain,
    ( ( ? [A: $i] :
          ( ( empty @ A )
          & ( relation @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[148]) ).

thf(999,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( element @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[147]) ).

thf(1000,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[146]) ).

thf(1001,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[145]) ).

thf(1002,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY73 ) @ sK3_SY75 )
    = $true ),
    inference(copy,[status(thm)],[184]) ).

thf(1003,plain,
    ( ( relation @ sK3_SY75 )
    = $true ),
    inference(copy,[status(thm)],[183]) ).

thf(1004,plain,
    ( ( ~ ( in @ sK2_SY73 @ ( relation_rng @ sK3_SY75 ) ) )
    = $true ),
    inference(copy,[status(thm)],[189]) ).

thf(1005,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)],[972]) ).

thf(1006,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)],[1000]) ).

thf(1007,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)],[978]) ).

thf(1008,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)],[973]) ).

thf(1009,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[971]) ).

thf(1010,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ~ ( ~ ( in @ SX0 @ SX1 )
              | ~ ( empty @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1001]) ).

thf(1011,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)],[975]) ).

thf(1012,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ~ ( ~ ( ( SX1
                     != ( relation_rng @ SX0 ) )
                    | ! [SX2: $i] :
                        ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                              | ~ ! [SX3: $i] :
                                    ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 ) )
                          | ~ ( ~ ~ ! [SX3: $i] :
                                      ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 )
                              | ( in @ SX2 @ SX1 ) ) ) )
                | ~ ( ~ ! [SX2: $i] :
                          ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                                | ~ ! [SX3: $i] :
                                      ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 ) )
                            | ~ ( ~ ~ ! [SX3: $i] :
                                        ~ ( in @ ( ordered_pair @ SX3 @ SX2 ) @ SX0 )
                                | ( in @ SX2 @ SX1 ) ) )
                    | ( SX1
                      = ( relation_rng @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[982]) ).

thf(1013,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( element @ SX0 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[999]) ).

thf(1014,plain,
    ( ( ! [SX0: $i] :
          ( ~ ( relation @ SX0 )
          | ! [SX1: $i] :
              ~ ( ~ ( ( SX1
                     != ( relation_dom @ SX0 ) )
                    | ! [SX2: $i] :
                        ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                              | ~ ! [SX3: $i] :
                                    ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 ) )
                          | ~ ( ~ ~ ! [SX3: $i] :
                                      ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 )
                              | ( in @ SX2 @ SX1 ) ) ) )
                | ~ ( ~ ! [SX2: $i] :
                          ~ ( ~ ( ~ ( in @ SX2 @ SX1 )
                                | ~ ! [SX3: $i] :
                                      ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 ) )
                            | ~ ( ~ ~ ! [SX3: $i] :
                                        ~ ( in @ ( ordered_pair @ SX2 @ SX3 ) @ SX0 )
                                | ( in @ SX2 @ SX1 ) ) )
                    | ( SX1
                      = ( relation_dom @ SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[979]) ).

thf(1015,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ( ( ordered_pair @ SX0 @ SX1 )
           != ( ordered_pair @ SX2 @ SX3 ) )
          | ~ ( ( SX0 != SX2 )
              | ( SX1 != SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[969]) ).

thf(1016,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ~ ( ~ ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                | ~ ( ~ ( in @ SX0 @ SX2 )
                    | ~ ( in @ SX1 @ SX3 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SX0 @ SX2 )
                      | ~ ( in @ SX1 @ SX3 ) )
                | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[967]) ).

thf(1017,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)],[970]) ).

thf(1018,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ~ ( ~ ( ( SX2
                 != ( cartesian_product2 @ SX0 @ SX1 ) )
                | ! [SX3: $i] :
                    ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                          | ~ ! [SX4: $i] :
                                ~ ~ ! [SX5: $i] :
                                      ~ ~ ( ~ ~ ( ~ ( in @ SX4 @ SX0 )
                                                | ~ ( in @ SX5 @ SX1 ) )
                                          | ( SX3
                                           != ( ordered_pair @ SX4 @ SX5 ) ) ) )
                      | ~ ( ~ ~ ! [SX4: $i] :
                                  ~ ~ ! [SX5: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SX4 @ SX0 )
                                                  | ~ ( in @ SX5 @ SX1 ) )
                                            | ( SX3
                                             != ( ordered_pair @ SX4 @ SX5 ) ) )
                          | ( in @ SX3 @ SX2 ) ) ) )
            | ~ ( ~ ! [SX3: $i] :
                      ~ ( ~ ( ~ ( in @ SX3 @ SX2 )
                            | ~ ! [SX4: $i] :
                                  ~ ~ ! [SX5: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SX4 @ SX0 )
                                                  | ~ ( in @ SX5 @ SX1 ) )
                                            | ( SX3
                                             != ( ordered_pair @ SX4 @ SX5 ) ) ) )
                        | ~ ( ~ ~ ! [SX4: $i] :
                                    ~ ~ ! [SX5: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SX4 @ SX0 )
                                                    | ~ ( in @ SX5 @ SX1 ) )
                                              | ( SX3
                                               != ( ordered_pair @ SX4 @ SX5 ) ) )
                            | ( in @ SX3 @ SX2 ) ) )
                | ( SX2
                  = ( cartesian_product2 @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[976]) ).

thf(1019,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)],[974]) ).

thf(1020,plain,
    ( ( ~ ! [SX0: $i] :
            ~ ~ ( ~ ( empty @ SX0 )
                | ~ ( relation @ SX0 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[998]) ).

thf(1021,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)],[980]) ).

thf(1022,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)],[981]) ).

thf(1023,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)],[977]) ).

thf(1024,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ~ ( ~ ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                | ~ ( ~ ( in @ SX0 @ SX2 )
                    | ~ ( in @ SX1 @ SX3 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SX0 @ SX2 )
                      | ~ ( in @ SX1 @ SX3 ) )
                | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[968]) ).

thf(1025,plain,
    ! [SV73: $i] :
      ( ( ! [SY251: $i] :
            ~ ( empty @ ( ordered_pair @ SV73 @ SY251 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[997]) ).

thf(1026,plain,
    ( ( in @ sK2_SY73 @ ( relation_rng @ sK3_SY75 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1004]) ).

thf(1027,plain,
    ! [SV74: $i] :
      ( ( ! [SY252: $i] :
            ~ ( ~ ( ( SY252
                   != ( singleton @ SV74 ) )
                  | ! [SY253: $i] :
                      ~ ( ~ ( ~ ( in @ SY253 @ SY252 )
                            | ( SY253 = SV74 ) )
                        | ~ ( ( SY253 != SV74 )
                            | ( in @ SY253 @ SY252 ) ) ) )
              | ~ ( ~ ! [SY254: $i] :
                        ~ ( ~ ( ~ ( in @ SY254 @ SY252 )
                              | ( SY254 = SV74 ) )
                          | ~ ( ( SY254 != SV74 )
                              | ( in @ SY254 @ SY252 ) ) )
                  | ( SY252
                    = ( singleton @ SV74 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1005]) ).

thf(1028,plain,
    ! [SV75: $i] :
      ( ( ! [SY255: $i] :
            ( ~ ! [SY256: $i] :
                  ~ ( ~ ( ~ ( in @ SY256 @ SV75 )
                        | ( in @ SY256 @ SY255 ) )
                    | ~ ( ~ ( in @ SY256 @ SY255 )
                        | ( in @ SY256 @ SV75 ) ) )
            | ( SV75 = SY255 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1006]) ).

thf(1029,plain,
    ! [SV76: $i] :
      ( ( ! [SY257: $i,SY258: $i] :
            ~ ( ~ ( ( SY258
                   != ( set_intersection2 @ SV76 @ SY257 ) )
                  | ! [SY259: $i] :
                      ~ ( ~ ( ~ ( in @ SY259 @ SY258 )
                            | ~ ( ~ ( in @ SY259 @ SV76 )
                                | ~ ( in @ SY259 @ SY257 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY259 @ SV76 )
                                  | ~ ( in @ SY259 @ SY257 ) )
                            | ( in @ SY259 @ SY258 ) ) ) )
              | ~ ( ~ ! [SY260: $i] :
                        ~ ( ~ ( ~ ( in @ SY260 @ SY258 )
                              | ~ ( ~ ( in @ SY260 @ SV76 )
                                  | ~ ( in @ SY260 @ SY257 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY260 @ SV76 )
                                    | ~ ( in @ SY260 @ SY257 ) )
                              | ( in @ SY260 @ SY258 ) ) )
                  | ( SY258
                    = ( set_intersection2 @ SV76 @ SY257 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1007]) ).

thf(1030,plain,
    ! [SV77: $i] :
      ( ( ~ ( ~ ( ( SV77 != empty_set )
                | ! [SY261: $i] :
                    ~ ( in @ SY261 @ SV77 ) )
            | ~ ( ~ ! [SY262: $i] :
                      ~ ( in @ SY262 @ SV77 )
                | ( SV77 = empty_set ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1008]) ).

thf(1031,plain,
    ! [SV78: $i] :
      ( ( ! [SY263: $i] :
            ( ~ ( in @ SV78 @ SY263 )
            | ~ ( in @ SY263 @ SV78 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1009]) ).

thf(1032,plain,
    ! [SV79: $i] :
      ( ( ! [SY264: $i] :
            ~ ~ ( ~ ( in @ SV79 @ SY264 )
                | ~ ( empty @ SY264 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1010]) ).

thf(1033,plain,
    ! [SV80: $i] :
      ( ( ! [SY265: $i,SY266: $i] :
            ~ ( ~ ( ( SY266
                   != ( set_union2 @ SV80 @ SY265 ) )
                  | ! [SY267: $i] :
                      ~ ( ~ ( ~ ( in @ SY267 @ SY266 )
                            | ( in @ SY267 @ SV80 )
                            | ( in @ SY267 @ SY265 ) )
                        | ~ ( ~ ( ( in @ SY267 @ SV80 )
                                | ( in @ SY267 @ SY265 ) )
                            | ( in @ SY267 @ SY266 ) ) ) )
              | ~ ( ~ ! [SY268: $i] :
                        ~ ( ~ ( ~ ( in @ SY268 @ SY266 )
                              | ( in @ SY268 @ SV80 )
                              | ( in @ SY268 @ SY265 ) )
                          | ~ ( ~ ( ( in @ SY268 @ SV80 )
                                  | ( in @ SY268 @ SY265 ) )
                              | ( in @ SY268 @ SY266 ) ) )
                  | ( SY266
                    = ( set_union2 @ SV80 @ SY265 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1011]) ).

thf(1034,plain,
    ! [SV81: $i] :
      ( ( ~ ( relation @ SV81 )
        | ! [SY269: $i] :
            ~ ( ~ ( ( SY269
                   != ( relation_rng @ SV81 ) )
                  | ! [SY270: $i] :
                      ~ ( ~ ( ~ ( in @ SY270 @ SY269 )
                            | ~ ! [SY271: $i] :
                                  ~ ( in @ ( ordered_pair @ SY271 @ SY270 ) @ SV81 ) )
                        | ~ ( ~ ~ ! [SY272: $i] :
                                    ~ ( in @ ( ordered_pair @ SY272 @ SY270 ) @ SV81 )
                            | ( in @ SY270 @ SY269 ) ) ) )
              | ~ ( ~ ! [SY273: $i] :
                        ~ ( ~ ( ~ ( in @ SY273 @ SY269 )
                              | ~ ! [SY274: $i] :
                                    ~ ( in @ ( ordered_pair @ SY274 @ SY273 ) @ SV81 ) )
                          | ~ ( ~ ~ ! [SY275: $i] :
                                      ~ ( in @ ( ordered_pair @ SY275 @ SY273 ) @ SV81 )
                              | ( in @ SY273 @ SY269 ) ) )
                  | ( SY269
                    = ( relation_rng @ SV81 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1012]) ).

thf(1035,plain,
    ! [SV82: $i] :
      ( ( ! [SY276: $i] :
            ( ~ ( in @ SV82 @ SY276 )
            | ( element @ SV82 @ SY276 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1013]) ).

thf(1036,plain,
    ! [SV83: $i] :
      ( ( ~ ( relation @ SV83 )
        | ! [SY277: $i] :
            ~ ( ~ ( ( SY277
                   != ( relation_dom @ SV83 ) )
                  | ! [SY278: $i] :
                      ~ ( ~ ( ~ ( in @ SY278 @ SY277 )
                            | ~ ! [SY279: $i] :
                                  ~ ( in @ ( ordered_pair @ SY278 @ SY279 ) @ SV83 ) )
                        | ~ ( ~ ~ ! [SY280: $i] :
                                    ~ ( in @ ( ordered_pair @ SY278 @ SY280 ) @ SV83 )
                            | ( in @ SY278 @ SY277 ) ) ) )
              | ~ ( ~ ! [SY281: $i] :
                        ~ ( ~ ( ~ ( in @ SY281 @ SY277 )
                              | ~ ! [SY282: $i] :
                                    ~ ( in @ ( ordered_pair @ SY281 @ SY282 ) @ SV83 ) )
                          | ~ ( ~ ~ ! [SY283: $i] :
                                      ~ ( in @ ( ordered_pair @ SY281 @ SY283 ) @ SV83 )
                              | ( in @ SY281 @ SY277 ) ) )
                  | ( SY277
                    = ( relation_dom @ SV83 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1014]) ).

thf(1037,plain,
    ! [SV84: $i] :
      ( ( ! [SY284: $i,SY285: $i,SY286: $i] :
            ( ( ( ordered_pair @ SV84 @ SY284 )
             != ( ordered_pair @ SY285 @ SY286 ) )
            | ~ ( ( SV84 != SY285 )
                | ( SY284 != SY286 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1015]) ).

thf(1038,plain,
    ! [SV85: $i] :
      ( ( ! [SY287: $i,SY288: $i,SY289: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV85 @ SY287 ) @ ( cartesian_product2 @ SY288 @ SY289 ) )
                  | ~ ( ~ ( in @ SV85 @ SY288 )
                      | ~ ( in @ SY287 @ SY289 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV85 @ SY288 )
                        | ~ ( in @ SY287 @ SY289 ) )
                  | ( in @ ( ordered_pair @ SV85 @ SY287 ) @ ( cartesian_product2 @ SY288 @ SY289 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1016]) ).

thf(1039,plain,
    ! [SV86: $i] :
      ( ( ! [SY290: $i] :
            ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV86 @ SY290 )
                      | ~ ! [SY291: $i] :
                            ~ ~ ( ~ ( in @ SY291 @ SV86 )
                                | ~ ( in @ SY291 @ SY290 ) ) )
              | ~ ~ ~ ( ~ ~ ! [SY292: $i] :
                              ~ ~ ( ~ ( in @ SY292 @ SV86 )
                                  | ~ ( in @ SY292 @ SY290 ) )
                      | ~ ( disjoint @ SV86 @ SY290 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1017]) ).

thf(1040,plain,
    ! [SV87: $i] :
      ( ( ! [SY293: $i,SY294: $i] :
            ~ ( ~ ( ( SY294
                   != ( cartesian_product2 @ SV87 @ SY293 ) )
                  | ! [SY295: $i] :
                      ~ ( ~ ( ~ ( in @ SY295 @ SY294 )
                            | ~ ! [SY296: $i] :
                                  ~ ~ ! [SY297: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SY296 @ SV87 )
                                                  | ~ ( in @ SY297 @ SY293 ) )
                                            | ( SY295
                                             != ( ordered_pair @ SY296 @ SY297 ) ) ) )
                        | ~ ( ~ ~ ! [SY298: $i] :
                                    ~ ~ ! [SY299: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY298 @ SV87 )
                                                    | ~ ( in @ SY299 @ SY293 ) )
                                              | ( SY295
                                               != ( ordered_pair @ SY298 @ SY299 ) ) )
                            | ( in @ SY295 @ SY294 ) ) ) )
              | ~ ( ~ ! [SY300: $i] :
                        ~ ( ~ ( ~ ( in @ SY300 @ SY294 )
                              | ~ ! [SY301: $i] :
                                    ~ ~ ! [SY302: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY301 @ SV87 )
                                                    | ~ ( in @ SY302 @ SY293 ) )
                                              | ( SY300
                                               != ( ordered_pair @ SY301 @ SY302 ) ) ) )
                          | ~ ( ~ ~ ! [SY303: $i] :
                                      ~ ~ ! [SY304: $i] :
                                            ~ ~ ( ~ ~ ( ~ ( in @ SY303 @ SV87 )
                                                      | ~ ( in @ SY304 @ SY293 ) )
                                                | ( SY300
                                                 != ( ordered_pair @ SY303 @ SY304 ) ) )
                              | ( in @ SY300 @ SY294 ) ) )
                  | ( SY294
                    = ( cartesian_product2 @ SV87 @ SY293 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1018]) ).

thf(1041,plain,
    ! [SV88: $i] :
      ( ( ! [SY305: $i,SY306: $i] :
            ~ ( ~ ( ( SY306
                   != ( unordered_pair @ SV88 @ SY305 ) )
                  | ! [SY307: $i] :
                      ~ ( ~ ( ~ ( in @ SY307 @ SY306 )
                            | ( SY307 = SV88 )
                            | ( SY307 = SY305 ) )
                        | ~ ( ~ ( ( SY307 = SV88 )
                                | ( SY307 = SY305 ) )
                            | ( in @ SY307 @ SY306 ) ) ) )
              | ~ ( ~ ! [SY308: $i] :
                        ~ ( ~ ( ~ ( in @ SY308 @ SY306 )
                              | ( SY308 = SV88 )
                              | ( SY308 = SY305 ) )
                          | ~ ( ~ ( ( SY308 = SV88 )
                                  | ( SY308 = SY305 ) )
                              | ( in @ SY308 @ SY306 ) ) )
                  | ( SY306
                    = ( unordered_pair @ SV88 @ SY305 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1019]) ).

thf(1042,plain,
    ( ( ! [SX0: $i] :
          ~ ~ ( ~ ( empty @ SX0 )
              | ~ ( relation @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1020]) ).

thf(1043,plain,
    ! [SV89: $i] :
      ( ( ! [SY309: $i] :
            ~ ( ~ ( ( SY309
                   != ( union @ SV89 ) )
                  | ! [SY310: $i] :
                      ~ ( ~ ( ~ ( in @ SY310 @ SY309 )
                            | ~ ! [SY311: $i] :
                                  ~ ~ ( ~ ( in @ SY310 @ SY311 )
                                      | ~ ( in @ SY311 @ SV89 ) ) )
                        | ~ ( ~ ~ ! [SY312: $i] :
                                    ~ ~ ( ~ ( in @ SY310 @ SY312 )
                                        | ~ ( in @ SY312 @ SV89 ) )
                            | ( in @ SY310 @ SY309 ) ) ) )
              | ~ ( ~ ! [SY313: $i] :
                        ~ ( ~ ( ~ ( in @ SY313 @ SY309 )
                              | ~ ! [SY314: $i] :
                                    ~ ~ ( ~ ( in @ SY313 @ SY314 )
                                        | ~ ( in @ SY314 @ SV89 ) ) )
                          | ~ ( ~ ~ ! [SY315: $i] :
                                      ~ ~ ( ~ ( in @ SY313 @ SY315 )
                                          | ~ ( in @ SY315 @ SV89 ) )
                              | ( in @ SY313 @ SY309 ) ) )
                  | ( SY309
                    = ( union @ SV89 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1021]) ).

thf(1044,plain,
    ! [SV90: $i] :
      ( ( ! [SY316: $i,SY317: $i] :
            ~ ( ~ ( ( SY317
                   != ( set_difference @ SV90 @ SY316 ) )
                  | ! [SY318: $i] :
                      ~ ( ~ ( ~ ( in @ SY318 @ SY317 )
                            | ~ ( ~ ( in @ SY318 @ SV90 )
                                | ~ ~ ( in @ SY318 @ SY316 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY318 @ SV90 )
                                  | ~ ~ ( in @ SY318 @ SY316 ) )
                            | ( in @ SY318 @ SY317 ) ) ) )
              | ~ ( ~ ! [SY319: $i] :
                        ~ ( ~ ( ~ ( in @ SY319 @ SY317 )
                              | ~ ( ~ ( in @ SY319 @ SV90 )
                                  | ~ ~ ( in @ SY319 @ SY316 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY319 @ SV90 )
                                    | ~ ~ ( in @ SY319 @ SY316 ) )
                              | ( in @ SY319 @ SY317 ) ) )
                  | ( SY317
                    = ( set_difference @ SV90 @ SY316 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1022]) ).

thf(1045,plain,
    ! [SV91: $i] :
      ( ( ! [SY320: $i] :
            ~ ( ~ ( ~ ( subset @ SV91 @ SY320 )
                  | ! [SY321: $i] :
                      ( ~ ( in @ SY321 @ SV91 )
                      | ( in @ SY321 @ SY320 ) ) )
              | ~ ( ~ ! [SY322: $i] :
                        ( ~ ( in @ SY322 @ SV91 )
                        | ( in @ SY322 @ SY320 ) )
                  | ( subset @ SV91 @ SY320 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1023]) ).

thf(1046,plain,
    ! [SV92: $i] :
      ( ( ! [SY323: $i,SY324: $i,SY325: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV92 @ SY323 ) @ ( cartesian_product2 @ SY324 @ SY325 ) )
                  | ~ ( ~ ( in @ SV92 @ SY324 )
                      | ~ ( in @ SY323 @ SY325 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV92 @ SY324 )
                        | ~ ( in @ SY323 @ SY325 ) )
                  | ( in @ ( ordered_pair @ SV92 @ SY323 ) @ ( cartesian_product2 @ SY324 @ SY325 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1024]) ).

thf(1047,plain,
    ! [SV93: $i,SV73: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV73 @ SV93 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1025]) ).

thf(1048,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ~ ( ~ ( ( SV94
                 != ( singleton @ SV74 ) )
                | ! [SY326: $i] :
                    ~ ( ~ ( ~ ( in @ SY326 @ SV94 )
                          | ( SY326 = SV74 ) )
                      | ~ ( ( SY326 != SV74 )
                          | ( in @ SY326 @ SV94 ) ) ) )
            | ~ ( ~ ! [SY327: $i] :
                      ~ ( ~ ( ~ ( in @ SY327 @ SV94 )
                            | ( SY327 = SV74 ) )
                        | ~ ( ( SY327 != SV74 )
                            | ( in @ SY327 @ SV94 ) ) )
                | ( SV94
                  = ( singleton @ SV74 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1027]) ).

thf(1049,plain,
    ! [SV95: $i,SV75: $i] :
      ( ( ~ ! [SY328: $i] :
              ~ ( ~ ( ~ ( in @ SY328 @ SV75 )
                    | ( in @ SY328 @ SV95 ) )
                | ~ ( ~ ( in @ SY328 @ SV95 )
                    | ( in @ SY328 @ SV75 ) ) )
        | ( SV75 = SV95 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1028]) ).

thf(1050,plain,
    ! [SV96: $i,SV76: $i] :
      ( ( ! [SY329: $i] :
            ~ ( ~ ( ( SY329
                   != ( set_intersection2 @ SV76 @ SV96 ) )
                  | ! [SY330: $i] :
                      ~ ( ~ ( ~ ( in @ SY330 @ SY329 )
                            | ~ ( ~ ( in @ SY330 @ SV76 )
                                | ~ ( in @ SY330 @ SV96 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY330 @ SV76 )
                                  | ~ ( in @ SY330 @ SV96 ) )
                            | ( in @ SY330 @ SY329 ) ) ) )
              | ~ ( ~ ! [SY331: $i] :
                        ~ ( ~ ( ~ ( in @ SY331 @ SY329 )
                              | ~ ( ~ ( in @ SY331 @ SV76 )
                                  | ~ ( in @ SY331 @ SV96 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY331 @ SV76 )
                                    | ~ ( in @ SY331 @ SV96 ) )
                              | ( in @ SY331 @ SY329 ) ) )
                  | ( SY329
                    = ( set_intersection2 @ SV76 @ SV96 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1029]) ).

thf(1051,plain,
    ! [SV77: $i] :
      ( ( ~ ( ( SV77 != empty_set )
            | ! [SY261: $i] :
                ~ ( in @ SY261 @ SV77 ) )
        | ~ ( ~ ! [SY262: $i] :
                  ~ ( in @ SY262 @ SV77 )
            | ( SV77 = empty_set ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1030]) ).

thf(1052,plain,
    ! [SV97: $i,SV78: $i] :
      ( ( ~ ( in @ SV78 @ SV97 )
        | ~ ( in @ SV97 @ SV78 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1031]) ).

thf(1053,plain,
    ! [SV98: $i,SV79: $i] :
      ( ( ~ ~ ( ~ ( in @ SV79 @ SV98 )
              | ~ ( empty @ SV98 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1032]) ).

thf(1054,plain,
    ! [SV99: $i,SV80: $i] :
      ( ( ! [SY332: $i] :
            ~ ( ~ ( ( SY332
                   != ( set_union2 @ SV80 @ SV99 ) )
                  | ! [SY333: $i] :
                      ~ ( ~ ( ~ ( in @ SY333 @ SY332 )
                            | ( in @ SY333 @ SV80 )
                            | ( in @ SY333 @ SV99 ) )
                        | ~ ( ~ ( ( in @ SY333 @ SV80 )
                                | ( in @ SY333 @ SV99 ) )
                            | ( in @ SY333 @ SY332 ) ) ) )
              | ~ ( ~ ! [SY334: $i] :
                        ~ ( ~ ( ~ ( in @ SY334 @ SY332 )
                              | ( in @ SY334 @ SV80 )
                              | ( in @ SY334 @ SV99 ) )
                          | ~ ( ~ ( ( in @ SY334 @ SV80 )
                                  | ( in @ SY334 @ SV99 ) )
                              | ( in @ SY334 @ SY332 ) ) )
                  | ( SY332
                    = ( set_union2 @ SV80 @ SV99 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1033]) ).

thf(1055,plain,
    ! [SV81: $i] :
      ( ( ( ~ ( relation @ SV81 ) )
        = $true )
      | ( ( ! [SY269: $i] :
              ~ ( ~ ( ( SY269
                     != ( relation_rng @ SV81 ) )
                    | ! [SY270: $i] :
                        ~ ( ~ ( ~ ( in @ SY270 @ SY269 )
                              | ~ ! [SY271: $i] :
                                    ~ ( in @ ( ordered_pair @ SY271 @ SY270 ) @ SV81 ) )
                          | ~ ( ~ ~ ! [SY272: $i] :
                                      ~ ( in @ ( ordered_pair @ SY272 @ SY270 ) @ SV81 )
                              | ( in @ SY270 @ SY269 ) ) ) )
                | ~ ( ~ ! [SY273: $i] :
                          ~ ( ~ ( ~ ( in @ SY273 @ SY269 )
                                | ~ ! [SY274: $i] :
                                      ~ ( in @ ( ordered_pair @ SY274 @ SY273 ) @ SV81 ) )
                            | ~ ( ~ ~ ! [SY275: $i] :
                                        ~ ( in @ ( ordered_pair @ SY275 @ SY273 ) @ SV81 )
                                | ( in @ SY273 @ SY269 ) ) )
                    | ( SY269
                      = ( relation_rng @ SV81 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1034]) ).

thf(1056,plain,
    ! [SV100: $i,SV82: $i] :
      ( ( ~ ( in @ SV82 @ SV100 )
        | ( element @ SV82 @ SV100 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1035]) ).

thf(1057,plain,
    ! [SV83: $i] :
      ( ( ( ~ ( relation @ SV83 ) )
        = $true )
      | ( ( ! [SY277: $i] :
              ~ ( ~ ( ( SY277
                     != ( relation_dom @ SV83 ) )
                    | ! [SY278: $i] :
                        ~ ( ~ ( ~ ( in @ SY278 @ SY277 )
                              | ~ ! [SY279: $i] :
                                    ~ ( in @ ( ordered_pair @ SY278 @ SY279 ) @ SV83 ) )
                          | ~ ( ~ ~ ! [SY280: $i] :
                                      ~ ( in @ ( ordered_pair @ SY278 @ SY280 ) @ SV83 )
                              | ( in @ SY278 @ SY277 ) ) ) )
                | ~ ( ~ ! [SY281: $i] :
                          ~ ( ~ ( ~ ( in @ SY281 @ SY277 )
                                | ~ ! [SY282: $i] :
                                      ~ ( in @ ( ordered_pair @ SY281 @ SY282 ) @ SV83 ) )
                            | ~ ( ~ ~ ! [SY283: $i] :
                                        ~ ( in @ ( ordered_pair @ SY281 @ SY283 ) @ SV83 )
                                | ( in @ SY281 @ SY277 ) ) )
                    | ( SY277
                      = ( relation_dom @ SV83 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1036]) ).

thf(1058,plain,
    ! [SV101: $i,SV84: $i] :
      ( ( ! [SY335: $i,SY336: $i] :
            ( ( ( ordered_pair @ SV84 @ SV101 )
             != ( ordered_pair @ SY335 @ SY336 ) )
            | ~ ( ( SV84 != SY335 )
                | ( SV101 != SY336 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1037]) ).

thf(1059,plain,
    ! [SV102: $i,SV85: $i] :
      ( ( ! [SY337: $i,SY338: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SY337 @ SY338 ) )
                  | ~ ( ~ ( in @ SV85 @ SY337 )
                      | ~ ( in @ SV102 @ SY338 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV85 @ SY337 )
                        | ~ ( in @ SV102 @ SY338 ) )
                  | ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SY337 @ SY338 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1038]) ).

thf(1060,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ( ~ ~ ~ ( ~ ~ ( disjoint @ SV86 @ SV103 )
                    | ~ ! [SY339: $i] :
                          ~ ~ ( ~ ( in @ SY339 @ SV86 )
                              | ~ ( in @ SY339 @ SV103 ) ) )
            | ~ ~ ~ ( ~ ~ ! [SY340: $i] :
                            ~ ~ ( ~ ( in @ SY340 @ SV86 )
                                | ~ ( in @ SY340 @ SV103 ) )
                    | ~ ( disjoint @ SV86 @ SV103 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1039]) ).

thf(1061,plain,
    ! [SV104: $i,SV87: $i] :
      ( ( ! [SY341: $i] :
            ~ ( ~ ( ( SY341
                   != ( cartesian_product2 @ SV87 @ SV104 ) )
                  | ! [SY342: $i] :
                      ~ ( ~ ( ~ ( in @ SY342 @ SY341 )
                            | ~ ! [SY343: $i] :
                                  ~ ~ ! [SY344: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SY343 @ SV87 )
                                                  | ~ ( in @ SY344 @ SV104 ) )
                                            | ( SY342
                                             != ( ordered_pair @ SY343 @ SY344 ) ) ) )
                        | ~ ( ~ ~ ! [SY345: $i] :
                                    ~ ~ ! [SY346: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY345 @ SV87 )
                                                    | ~ ( in @ SY346 @ SV104 ) )
                                              | ( SY342
                                               != ( ordered_pair @ SY345 @ SY346 ) ) )
                            | ( in @ SY342 @ SY341 ) ) ) )
              | ~ ( ~ ! [SY347: $i] :
                        ~ ( ~ ( ~ ( in @ SY347 @ SY341 )
                              | ~ ! [SY348: $i] :
                                    ~ ~ ! [SY349: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY348 @ SV87 )
                                                    | ~ ( in @ SY349 @ SV104 ) )
                                              | ( SY347
                                               != ( ordered_pair @ SY348 @ SY349 ) ) ) )
                          | ~ ( ~ ~ ! [SY350: $i] :
                                      ~ ~ ! [SY351: $i] :
                                            ~ ~ ( ~ ~ ( ~ ( in @ SY350 @ SV87 )
                                                      | ~ ( in @ SY351 @ SV104 ) )
                                                | ( SY347
                                                 != ( ordered_pair @ SY350 @ SY351 ) ) )
                              | ( in @ SY347 @ SY341 ) ) )
                  | ( SY341
                    = ( cartesian_product2 @ SV87 @ SV104 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1040]) ).

thf(1062,plain,
    ! [SV105: $i,SV88: $i] :
      ( ( ! [SY352: $i] :
            ~ ( ~ ( ( SY352
                   != ( unordered_pair @ SV88 @ SV105 ) )
                  | ! [SY353: $i] :
                      ~ ( ~ ( ~ ( in @ SY353 @ SY352 )
                            | ( SY353 = SV88 )
                            | ( SY353 = SV105 ) )
                        | ~ ( ~ ( ( SY353 = SV88 )
                                | ( SY353 = SV105 ) )
                            | ( in @ SY353 @ SY352 ) ) ) )
              | ~ ( ~ ! [SY354: $i] :
                        ~ ( ~ ( ~ ( in @ SY354 @ SY352 )
                              | ( SY354 = SV88 )
                              | ( SY354 = SV105 ) )
                          | ~ ( ~ ( ( SY354 = SV88 )
                                  | ( SY354 = SV105 ) )
                              | ( in @ SY354 @ SY352 ) ) )
                  | ( SY352
                    = ( unordered_pair @ SV88 @ SV105 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1041]) ).

thf(1063,plain,
    ( ( ~ ~ ( ~ ( empty @ sK33_SX0 )
            | ~ ( relation @ sK33_SX0 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[1042]) ).

thf(1064,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ~ ( ~ ( ( SV106
                 != ( union @ SV89 ) )
                | ! [SY355: $i] :
                    ~ ( ~ ( ~ ( in @ SY355 @ SV106 )
                          | ~ ! [SY311: $i] :
                                ~ ~ ( ~ ( in @ SY355 @ SY311 )
                                    | ~ ( in @ SY311 @ SV89 ) ) )
                      | ~ ( ~ ~ ! [SY312: $i] :
                                  ~ ~ ( ~ ( in @ SY355 @ SY312 )
                                      | ~ ( in @ SY312 @ SV89 ) )
                          | ( in @ SY355 @ SV106 ) ) ) )
            | ~ ( ~ ! [SY358: $i] :
                      ~ ( ~ ( ~ ( in @ SY358 @ SV106 )
                            | ~ ! [SY314: $i] :
                                  ~ ~ ( ~ ( in @ SY358 @ SY314 )
                                      | ~ ( in @ SY314 @ SV89 ) ) )
                        | ~ ( ~ ~ ! [SY315: $i] :
                                    ~ ~ ( ~ ( in @ SY358 @ SY315 )
                                        | ~ ( in @ SY315 @ SV89 ) )
                            | ( in @ SY358 @ SV106 ) ) )
                | ( SV106
                  = ( union @ SV89 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1043]) ).

thf(1065,plain,
    ! [SV107: $i,SV90: $i] :
      ( ( ! [SY361: $i] :
            ~ ( ~ ( ( SY361
                   != ( set_difference @ SV90 @ SV107 ) )
                  | ! [SY362: $i] :
                      ~ ( ~ ( ~ ( in @ SY362 @ SY361 )
                            | ~ ( ~ ( in @ SY362 @ SV90 )
                                | ~ ~ ( in @ SY362 @ SV107 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY362 @ SV90 )
                                  | ~ ~ ( in @ SY362 @ SV107 ) )
                            | ( in @ SY362 @ SY361 ) ) ) )
              | ~ ( ~ ! [SY363: $i] :
                        ~ ( ~ ( ~ ( in @ SY363 @ SY361 )
                              | ~ ( ~ ( in @ SY363 @ SV90 )
                                  | ~ ~ ( in @ SY363 @ SV107 ) ) )
                          | ~ ( ~ ~ ( ~ ( in @ SY363 @ SV90 )
                                    | ~ ~ ( in @ SY363 @ SV107 ) )
                              | ( in @ SY363 @ SY361 ) ) )
                  | ( SY361
                    = ( set_difference @ SV90 @ SV107 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1044]) ).

thf(1066,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ~ ( ~ ( ~ ( subset @ SV91 @ SV108 )
                | ! [SY364: $i] :
                    ( ~ ( in @ SY364 @ SV91 )
                    | ( in @ SY364 @ SV108 ) ) )
            | ~ ( ~ ! [SY365: $i] :
                      ( ~ ( in @ SY365 @ SV91 )
                      | ( in @ SY365 @ SV108 ) )
                | ( subset @ SV91 @ SV108 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1045]) ).

thf(1067,plain,
    ! [SV109: $i,SV92: $i] :
      ( ( ! [SY366: $i,SY367: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SY366 @ SY367 ) )
                  | ~ ( ~ ( in @ SV92 @ SY366 )
                      | ~ ( in @ SV109 @ SY367 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV92 @ SY366 )
                        | ~ ( in @ SV109 @ SY367 ) )
                  | ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SY366 @ SY367 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1046]) ).

thf(1068,plain,
    ! [SV93: $i,SV73: $i] :
      ( ( empty @ ( ordered_pair @ SV73 @ SV93 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1047]) ).

thf(1069,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ~ ( ( SV94
             != ( singleton @ SV74 ) )
            | ! [SY326: $i] :
                ~ ( ~ ( ~ ( in @ SY326 @ SV94 )
                      | ( SY326 = SV74 ) )
                  | ~ ( ( SY326 != SV74 )
                      | ( in @ SY326 @ SV94 ) ) ) )
        | ~ ( ~ ! [SY327: $i] :
                  ~ ( ~ ( ~ ( in @ SY327 @ SV94 )
                        | ( SY327 = SV74 ) )
                    | ~ ( ( SY327 != SV74 )
                        | ( in @ SY327 @ SV94 ) ) )
            | ( SV94
              = ( singleton @ SV74 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1048]) ).

thf(1070,plain,
    ! [SV95: $i,SV75: $i] :
      ( ( ( ~ ! [SY328: $i] :
                ~ ( ~ ( ~ ( in @ SY328 @ SV75 )
                      | ( in @ SY328 @ SV95 ) )
                  | ~ ( ~ ( in @ SY328 @ SV95 )
                      | ( in @ SY328 @ SV75 ) ) ) )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1049]) ).

thf(1071,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ~ ( ~ ( ( SV110
                 != ( set_intersection2 @ SV76 @ SV96 ) )
                | ! [SY368: $i] :
                    ~ ( ~ ( ~ ( in @ SY368 @ SV110 )
                          | ~ ( ~ ( in @ SY368 @ SV76 )
                              | ~ ( in @ SY368 @ SV96 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY368 @ SV76 )
                                | ~ ( in @ SY368 @ SV96 ) )
                          | ( in @ SY368 @ SV110 ) ) ) )
            | ~ ( ~ ! [SY369: $i] :
                      ~ ( ~ ( ~ ( in @ SY369 @ SV110 )
                            | ~ ( ~ ( in @ SY369 @ SV76 )
                                | ~ ( in @ SY369 @ SV96 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY369 @ SV76 )
                                  | ~ ( in @ SY369 @ SV96 ) )
                            | ( in @ SY369 @ SV110 ) ) )
                | ( SV110
                  = ( set_intersection2 @ SV76 @ SV96 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1050]) ).

thf(1072,plain,
    ! [SV77: $i] :
      ( ( ~ ( ( SV77 != empty_set )
            | ! [SY261: $i] :
                ~ ( in @ SY261 @ SV77 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1051]) ).

thf(1073,plain,
    ! [SV77: $i] :
      ( ( ~ ( ~ ! [SY262: $i] :
                  ~ ( in @ SY262 @ SV77 )
            | ( SV77 = empty_set ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1051]) ).

thf(1074,plain,
    ! [SV97: $i,SV78: $i] :
      ( ( ( ~ ( in @ SV78 @ SV97 ) )
        = $true )
      | ( ( ~ ( in @ SV97 @ SV78 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1052]) ).

thf(1075,plain,
    ! [SV98: $i,SV79: $i] :
      ( ( ~ ( ~ ( in @ SV79 @ SV98 )
            | ~ ( empty @ SV98 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1053]) ).

thf(1076,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ~ ( ~ ( ( SV111
                 != ( set_union2 @ SV80 @ SV99 ) )
                | ! [SY370: $i] :
                    ~ ( ~ ( ~ ( in @ SY370 @ SV111 )
                          | ( in @ SY370 @ SV80 )
                          | ( in @ SY370 @ SV99 ) )
                      | ~ ( ~ ( ( in @ SY370 @ SV80 )
                              | ( in @ SY370 @ SV99 ) )
                          | ( in @ SY370 @ SV111 ) ) ) )
            | ~ ( ~ ! [SY371: $i] :
                      ~ ( ~ ( ~ ( in @ SY371 @ SV111 )
                            | ( in @ SY371 @ SV80 )
                            | ( in @ SY371 @ SV99 ) )
                        | ~ ( ~ ( ( in @ SY371 @ SV80 )
                                | ( in @ SY371 @ SV99 ) )
                            | ( in @ SY371 @ SV111 ) ) )
                | ( SV111
                  = ( set_union2 @ SV80 @ SV99 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1054]) ).

thf(1077,plain,
    ! [SV81: $i] :
      ( ( ( relation @ SV81 )
        = $false )
      | ( ( ! [SY269: $i] :
              ~ ( ~ ( ( SY269
                     != ( relation_rng @ SV81 ) )
                    | ! [SY270: $i] :
                        ~ ( ~ ( ~ ( in @ SY270 @ SY269 )
                              | ~ ! [SY271: $i] :
                                    ~ ( in @ ( ordered_pair @ SY271 @ SY270 ) @ SV81 ) )
                          | ~ ( ~ ~ ! [SY272: $i] :
                                      ~ ( in @ ( ordered_pair @ SY272 @ SY270 ) @ SV81 )
                              | ( in @ SY270 @ SY269 ) ) ) )
                | ~ ( ~ ! [SY273: $i] :
                          ~ ( ~ ( ~ ( in @ SY273 @ SY269 )
                                | ~ ! [SY274: $i] :
                                      ~ ( in @ ( ordered_pair @ SY274 @ SY273 ) @ SV81 ) )
                            | ~ ( ~ ~ ! [SY275: $i] :
                                        ~ ( in @ ( ordered_pair @ SY275 @ SY273 ) @ SV81 )
                                | ( in @ SY273 @ SY269 ) ) )
                    | ( SY269
                      = ( relation_rng @ SV81 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1055]) ).

thf(1078,plain,
    ! [SV100: $i,SV82: $i] :
      ( ( ( ~ ( in @ SV82 @ SV100 ) )
        = $true )
      | ( ( element @ SV82 @ SV100 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1056]) ).

thf(1079,plain,
    ! [SV83: $i] :
      ( ( ( relation @ SV83 )
        = $false )
      | ( ( ! [SY277: $i] :
              ~ ( ~ ( ( SY277
                     != ( relation_dom @ SV83 ) )
                    | ! [SY278: $i] :
                        ~ ( ~ ( ~ ( in @ SY278 @ SY277 )
                              | ~ ! [SY279: $i] :
                                    ~ ( in @ ( ordered_pair @ SY278 @ SY279 ) @ SV83 ) )
                          | ~ ( ~ ~ ! [SY280: $i] :
                                      ~ ( in @ ( ordered_pair @ SY278 @ SY280 ) @ SV83 )
                              | ( in @ SY278 @ SY277 ) ) ) )
                | ~ ( ~ ! [SY281: $i] :
                          ~ ( ~ ( ~ ( in @ SY281 @ SY277 )
                                | ~ ! [SY282: $i] :
                                      ~ ( in @ ( ordered_pair @ SY281 @ SY282 ) @ SV83 ) )
                            | ~ ( ~ ~ ! [SY283: $i] :
                                        ~ ( in @ ( ordered_pair @ SY281 @ SY283 ) @ SV83 )
                                | ( in @ SY281 @ SY277 ) ) )
                    | ( SY277
                      = ( relation_dom @ SV83 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1057]) ).

thf(1080,plain,
    ! [SV112: $i,SV101: $i,SV84: $i] :
      ( ( ! [SY372: $i] :
            ( ( ( ordered_pair @ SV84 @ SV101 )
             != ( ordered_pair @ SV112 @ SY372 ) )
            | ~ ( ( SV84 != SV112 )
                | ( SV101 != SY372 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1058]) ).

thf(1081,plain,
    ! [SV113: $i,SV102: $i,SV85: $i] :
      ( ( ! [SY373: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SY373 ) )
                  | ~ ( ~ ( in @ SV85 @ SV113 )
                      | ~ ( in @ SV102 @ SY373 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV85 @ SV113 )
                        | ~ ( in @ SV102 @ SY373 ) )
                  | ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SY373 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1059]) ).

thf(1082,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV86 @ SV103 )
                | ~ ! [SY339: $i] :
                      ~ ~ ( ~ ( in @ SY339 @ SV86 )
                          | ~ ( in @ SY339 @ SV103 ) ) )
        | ~ ~ ~ ( ~ ~ ! [SY340: $i] :
                        ~ ~ ( ~ ( in @ SY340 @ SV86 )
                            | ~ ( in @ SY340 @ SV103 ) )
                | ~ ( disjoint @ SV86 @ SV103 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1060]) ).

thf(1083,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ~ ( ~ ( ( SV114
                 != ( cartesian_product2 @ SV87 @ SV104 ) )
                | ! [SY374: $i] :
                    ~ ( ~ ( ~ ( in @ SY374 @ SV114 )
                          | ~ ! [SY343: $i] :
                                ~ ~ ! [SY344: $i] :
                                      ~ ~ ( ~ ~ ( ~ ( in @ SY343 @ SV87 )
                                                | ~ ( in @ SY344 @ SV104 ) )
                                          | ( SY374
                                           != ( ordered_pair @ SY343 @ SY344 ) ) ) )
                      | ~ ( ~ ~ ! [SY345: $i] :
                                  ~ ~ ! [SY346: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SY345 @ SV87 )
                                                  | ~ ( in @ SY346 @ SV104 ) )
                                            | ( SY374
                                             != ( ordered_pair @ SY345 @ SY346 ) ) )
                          | ( in @ SY374 @ SV114 ) ) ) )
            | ~ ( ~ ! [SY379: $i] :
                      ~ ( ~ ( ~ ( in @ SY379 @ SV114 )
                            | ~ ! [SY348: $i] :
                                  ~ ~ ! [SY349: $i] :
                                        ~ ~ ( ~ ~ ( ~ ( in @ SY348 @ SV87 )
                                                  | ~ ( in @ SY349 @ SV104 ) )
                                            | ( SY379
                                             != ( ordered_pair @ SY348 @ SY349 ) ) ) )
                        | ~ ( ~ ~ ! [SY350: $i] :
                                    ~ ~ ! [SY351: $i] :
                                          ~ ~ ( ~ ~ ( ~ ( in @ SY350 @ SV87 )
                                                    | ~ ( in @ SY351 @ SV104 ) )
                                              | ( SY379
                                               != ( ordered_pair @ SY350 @ SY351 ) ) )
                            | ( in @ SY379 @ SV114 ) ) )
                | ( SV114
                  = ( cartesian_product2 @ SV87 @ SV104 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1061]) ).

thf(1084,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ~ ( ~ ( ( SV115
                 != ( unordered_pair @ SV88 @ SV105 ) )
                | ! [SY384: $i] :
                    ~ ( ~ ( ~ ( in @ SY384 @ SV115 )
                          | ( SY384 = SV88 )
                          | ( SY384 = SV105 ) )
                      | ~ ( ~ ( ( SY384 = SV88 )
                              | ( SY384 = SV105 ) )
                          | ( in @ SY384 @ SV115 ) ) ) )
            | ~ ( ~ ! [SY385: $i] :
                      ~ ( ~ ( ~ ( in @ SY385 @ SV115 )
                            | ( SY385 = SV88 )
                            | ( SY385 = SV105 ) )
                        | ~ ( ~ ( ( SY385 = SV88 )
                                | ( SY385 = SV105 ) )
                            | ( in @ SY385 @ SV115 ) ) )
                | ( SV115
                  = ( unordered_pair @ SV88 @ SV105 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1062]) ).

thf(1085,plain,
    ( ( ~ ( ~ ( empty @ sK33_SX0 )
          | ~ ( relation @ sK33_SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1063]) ).

thf(1086,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ~ ( ( SV106
             != ( union @ SV89 ) )
            | ! [SY355: $i] :
                ~ ( ~ ( ~ ( in @ SY355 @ SV106 )
                      | ~ ! [SY311: $i] :
                            ~ ~ ( ~ ( in @ SY355 @ SY311 )
                                | ~ ( in @ SY311 @ SV89 ) ) )
                  | ~ ( ~ ~ ! [SY312: $i] :
                              ~ ~ ( ~ ( in @ SY355 @ SY312 )
                                  | ~ ( in @ SY312 @ SV89 ) )
                      | ( in @ SY355 @ SV106 ) ) ) )
        | ~ ( ~ ! [SY358: $i] :
                  ~ ( ~ ( ~ ( in @ SY358 @ SV106 )
                        | ~ ! [SY314: $i] :
                              ~ ~ ( ~ ( in @ SY358 @ SY314 )
                                  | ~ ( in @ SY314 @ SV89 ) ) )
                    | ~ ( ~ ~ ! [SY315: $i] :
                                ~ ~ ( ~ ( in @ SY358 @ SY315 )
                                    | ~ ( in @ SY315 @ SV89 ) )
                        | ( in @ SY358 @ SV106 ) ) )
            | ( SV106
              = ( union @ SV89 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1064]) ).

thf(1087,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ~ ( ~ ( ( SV116
                 != ( set_difference @ SV90 @ SV107 ) )
                | ! [SY386: $i] :
                    ~ ( ~ ( ~ ( in @ SY386 @ SV116 )
                          | ~ ( ~ ( in @ SY386 @ SV90 )
                              | ~ ~ ( in @ SY386 @ SV107 ) ) )
                      | ~ ( ~ ~ ( ~ ( in @ SY386 @ SV90 )
                                | ~ ~ ( in @ SY386 @ SV107 ) )
                          | ( in @ SY386 @ SV116 ) ) ) )
            | ~ ( ~ ! [SY387: $i] :
                      ~ ( ~ ( ~ ( in @ SY387 @ SV116 )
                            | ~ ( ~ ( in @ SY387 @ SV90 )
                                | ~ ~ ( in @ SY387 @ SV107 ) ) )
                        | ~ ( ~ ~ ( ~ ( in @ SY387 @ SV90 )
                                  | ~ ~ ( in @ SY387 @ SV107 ) )
                            | ( in @ SY387 @ SV116 ) ) )
                | ( SV116
                  = ( set_difference @ SV90 @ SV107 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1065]) ).

thf(1088,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ~ ( ~ ( subset @ SV91 @ SV108 )
            | ! [SY364: $i] :
                ( ~ ( in @ SY364 @ SV91 )
                | ( in @ SY364 @ SV108 ) ) )
        | ~ ( ~ ! [SY365: $i] :
                  ( ~ ( in @ SY365 @ SV91 )
                  | ( in @ SY365 @ SV108 ) )
            | ( subset @ SV91 @ SV108 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1066]) ).

thf(1089,plain,
    ! [SV117: $i,SV109: $i,SV92: $i] :
      ( ( ! [SY388: $i] :
            ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SY388 ) )
                  | ~ ( ~ ( in @ SV92 @ SV117 )
                      | ~ ( in @ SV109 @ SY388 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV92 @ SV117 )
                        | ~ ( in @ SV109 @ SY388 ) )
                  | ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SY388 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1067]) ).

thf(1090,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ~ ( ( SV94
             != ( singleton @ SV74 ) )
            | ! [SY326: $i] :
                ~ ( ~ ( ~ ( in @ SY326 @ SV94 )
                      | ( SY326 = SV74 ) )
                  | ~ ( ( SY326 != SV74 )
                      | ( in @ SY326 @ SV94 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1069]) ).

thf(1091,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ~ ( ~ ! [SY327: $i] :
                  ~ ( ~ ( ~ ( in @ SY327 @ SV94 )
                        | ( SY327 = SV74 ) )
                    | ~ ( ( SY327 != SV74 )
                        | ( in @ SY327 @ SV94 ) ) )
            | ( SV94
              = ( singleton @ SV74 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1069]) ).

thf(1092,plain,
    ! [SV95: $i,SV75: $i] :
      ( ( ( ! [SY328: $i] :
              ~ ( ~ ( ~ ( in @ SY328 @ SV75 )
                    | ( in @ SY328 @ SV95 ) )
                | ~ ( ~ ( in @ SY328 @ SV95 )
                    | ( in @ SY328 @ SV75 ) ) ) )
        = $false )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1070]) ).

thf(1093,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ~ ( ( SV110
             != ( set_intersection2 @ SV76 @ SV96 ) )
            | ! [SY368: $i] :
                ~ ( ~ ( ~ ( in @ SY368 @ SV110 )
                      | ~ ( ~ ( in @ SY368 @ SV76 )
                          | ~ ( in @ SY368 @ SV96 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY368 @ SV76 )
                            | ~ ( in @ SY368 @ SV96 ) )
                      | ( in @ SY368 @ SV110 ) ) ) )
        | ~ ( ~ ! [SY369: $i] :
                  ~ ( ~ ( ~ ( in @ SY369 @ SV110 )
                        | ~ ( ~ ( in @ SY369 @ SV76 )
                            | ~ ( in @ SY369 @ SV96 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY369 @ SV76 )
                              | ~ ( in @ SY369 @ SV96 ) )
                        | ( in @ SY369 @ SV110 ) ) )
            | ( SV110
              = ( set_intersection2 @ SV76 @ SV96 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1071]) ).

thf(1094,plain,
    ! [SV77: $i] :
      ( ( ( SV77 != empty_set )
        | ! [SY261: $i] :
            ~ ( in @ SY261 @ SV77 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1072]) ).

thf(1095,plain,
    ! [SV77: $i] :
      ( ( ~ ! [SY262: $i] :
              ~ ( in @ SY262 @ SV77 )
        | ( SV77 = empty_set ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1073]) ).

thf(1096,plain,
    ! [SV97: $i,SV78: $i] :
      ( ( ( in @ SV78 @ SV97 )
        = $false )
      | ( ( ~ ( in @ SV97 @ SV78 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1074]) ).

thf(1097,plain,
    ! [SV98: $i,SV79: $i] :
      ( ( ~ ( in @ SV79 @ SV98 )
        | ~ ( empty @ SV98 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1075]) ).

thf(1098,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ~ ( ( SV111
             != ( set_union2 @ SV80 @ SV99 ) )
            | ! [SY370: $i] :
                ~ ( ~ ( ~ ( in @ SY370 @ SV111 )
                      | ( in @ SY370 @ SV80 )
                      | ( in @ SY370 @ SV99 ) )
                  | ~ ( ~ ( ( in @ SY370 @ SV80 )
                          | ( in @ SY370 @ SV99 ) )
                      | ( in @ SY370 @ SV111 ) ) ) )
        | ~ ( ~ ! [SY371: $i] :
                  ~ ( ~ ( ~ ( in @ SY371 @ SV111 )
                        | ( in @ SY371 @ SV80 )
                        | ( in @ SY371 @ SV99 ) )
                    | ~ ( ~ ( ( in @ SY371 @ SV80 )
                            | ( in @ SY371 @ SV99 ) )
                        | ( in @ SY371 @ SV111 ) ) )
            | ( SV111
              = ( set_union2 @ SV80 @ SV99 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1076]) ).

thf(1099,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( ~ ( ~ ( ( SV118
                   != ( relation_rng @ SV81 ) )
                  | ! [SY389: $i] :
                      ~ ( ~ ( ~ ( in @ SY389 @ SV118 )
                            | ~ ! [SY271: $i] :
                                  ~ ( in @ ( ordered_pair @ SY271 @ SY389 ) @ SV81 ) )
                        | ~ ( ~ ~ ! [SY272: $i] :
                                    ~ ( in @ ( ordered_pair @ SY272 @ SY389 ) @ SV81 )
                            | ( in @ SY389 @ SV118 ) ) ) )
              | ~ ( ~ ! [SY392: $i] :
                        ~ ( ~ ( ~ ( in @ SY392 @ SV118 )
                              | ~ ! [SY274: $i] :
                                    ~ ( in @ ( ordered_pair @ SY274 @ SY392 ) @ SV81 ) )
                          | ~ ( ~ ~ ! [SY275: $i] :
                                      ~ ( in @ ( ordered_pair @ SY275 @ SY392 ) @ SV81 )
                              | ( in @ SY392 @ SV118 ) ) )
                  | ( SV118
                    = ( relation_rng @ SV81 ) ) ) ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1077]) ).

thf(1100,plain,
    ! [SV100: $i,SV82: $i] :
      ( ( ( in @ SV82 @ SV100 )
        = $false )
      | ( ( element @ SV82 @ SV100 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1078]) ).

thf(1101,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( ~ ( ~ ( ( SV119
                   != ( relation_dom @ SV83 ) )
                  | ! [SY395: $i] :
                      ~ ( ~ ( ~ ( in @ SY395 @ SV119 )
                            | ~ ! [SY279: $i] :
                                  ~ ( in @ ( ordered_pair @ SY395 @ SY279 ) @ SV83 ) )
                        | ~ ( ~ ~ ! [SY280: $i] :
                                    ~ ( in @ ( ordered_pair @ SY395 @ SY280 ) @ SV83 )
                            | ( in @ SY395 @ SV119 ) ) ) )
              | ~ ( ~ ! [SY398: $i] :
                        ~ ( ~ ( ~ ( in @ SY398 @ SV119 )
                              | ~ ! [SY282: $i] :
                                    ~ ( in @ ( ordered_pair @ SY398 @ SY282 ) @ SV83 ) )
                          | ~ ( ~ ~ ! [SY283: $i] :
                                      ~ ( in @ ( ordered_pair @ SY398 @ SY283 ) @ SV83 )
                              | ( in @ SY398 @ SV119 ) ) )
                  | ( SV119
                    = ( relation_dom @ SV83 ) ) ) ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1079]) ).

thf(1102,plain,
    ! [SV120: $i,SV112: $i,SV101: $i,SV84: $i] :
      ( ( ( ( ordered_pair @ SV84 @ SV101 )
         != ( ordered_pair @ SV112 @ SV120 ) )
        | ~ ( ( SV84 != SV112 )
            | ( SV101 != SV120 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1080]) ).

thf(1103,plain,
    ! [SV121: $i,SV113: $i,SV102: $i,SV85: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
                | ~ ( ~ ( in @ SV85 @ SV113 )
                    | ~ ( in @ SV102 @ SV121 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SV85 @ SV113 )
                      | ~ ( in @ SV102 @ SV121 ) )
                | ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1081]) ).

thf(1104,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ~ ~ ( ~ ~ ( disjoint @ SV86 @ SV103 )
                | ~ ! [SY339: $i] :
                      ~ ~ ( ~ ( in @ SY339 @ SV86 )
                          | ~ ( in @ SY339 @ SV103 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1082]) ).

thf(1105,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ~ ~ ( ~ ~ ! [SY340: $i] :
                        ~ ~ ( ~ ( in @ SY340 @ SV86 )
                            | ~ ( in @ SY340 @ SV103 ) )
                | ~ ( disjoint @ SV86 @ SV103 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1082]) ).

thf(1106,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ~ ( ( SV114
             != ( cartesian_product2 @ SV87 @ SV104 ) )
            | ! [SY374: $i] :
                ~ ( ~ ( ~ ( in @ SY374 @ SV114 )
                      | ~ ! [SY343: $i] :
                            ~ ~ ! [SY344: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY343 @ SV87 )
                                            | ~ ( in @ SY344 @ SV104 ) )
                                      | ( SY374
                                       != ( ordered_pair @ SY343 @ SY344 ) ) ) )
                  | ~ ( ~ ~ ! [SY345: $i] :
                              ~ ~ ! [SY346: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY345 @ SV87 )
                                              | ~ ( in @ SY346 @ SV104 ) )
                                        | ( SY374
                                         != ( ordered_pair @ SY345 @ SY346 ) ) )
                      | ( in @ SY374 @ SV114 ) ) ) )
        | ~ ( ~ ! [SY379: $i] :
                  ~ ( ~ ( ~ ( in @ SY379 @ SV114 )
                        | ~ ! [SY348: $i] :
                              ~ ~ ! [SY349: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY348 @ SV87 )
                                              | ~ ( in @ SY349 @ SV104 ) )
                                        | ( SY379
                                         != ( ordered_pair @ SY348 @ SY349 ) ) ) )
                    | ~ ( ~ ~ ! [SY350: $i] :
                                ~ ~ ! [SY351: $i] :
                                      ~ ~ ( ~ ~ ( ~ ( in @ SY350 @ SV87 )
                                                | ~ ( in @ SY351 @ SV104 ) )
                                          | ( SY379
                                           != ( ordered_pair @ SY350 @ SY351 ) ) )
                        | ( in @ SY379 @ SV114 ) ) )
            | ( SV114
              = ( cartesian_product2 @ SV87 @ SV104 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1083]) ).

thf(1107,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ~ ( ( SV115
             != ( unordered_pair @ SV88 @ SV105 ) )
            | ! [SY384: $i] :
                ~ ( ~ ( ~ ( in @ SY384 @ SV115 )
                      | ( SY384 = SV88 )
                      | ( SY384 = SV105 ) )
                  | ~ ( ~ ( ( SY384 = SV88 )
                          | ( SY384 = SV105 ) )
                      | ( in @ SY384 @ SV115 ) ) ) )
        | ~ ( ~ ! [SY385: $i] :
                  ~ ( ~ ( ~ ( in @ SY385 @ SV115 )
                        | ( SY385 = SV88 )
                        | ( SY385 = SV105 ) )
                    | ~ ( ~ ( ( SY385 = SV88 )
                            | ( SY385 = SV105 ) )
                        | ( in @ SY385 @ SV115 ) ) )
            | ( SV115
              = ( unordered_pair @ SV88 @ SV105 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1084]) ).

thf(1108,plain,
    ( ( ~ ( empty @ sK33_SX0 )
      | ~ ( relation @ sK33_SX0 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1085]) ).

thf(1109,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ~ ( ( SV106
             != ( union @ SV89 ) )
            | ! [SY355: $i] :
                ~ ( ~ ( ~ ( in @ SY355 @ SV106 )
                      | ~ ! [SY311: $i] :
                            ~ ~ ( ~ ( in @ SY355 @ SY311 )
                                | ~ ( in @ SY311 @ SV89 ) ) )
                  | ~ ( ~ ~ ! [SY312: $i] :
                              ~ ~ ( ~ ( in @ SY355 @ SY312 )
                                  | ~ ( in @ SY312 @ SV89 ) )
                      | ( in @ SY355 @ SV106 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1086]) ).

thf(1110,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ~ ( ~ ! [SY358: $i] :
                  ~ ( ~ ( ~ ( in @ SY358 @ SV106 )
                        | ~ ! [SY314: $i] :
                              ~ ~ ( ~ ( in @ SY358 @ SY314 )
                                  | ~ ( in @ SY314 @ SV89 ) ) )
                    | ~ ( ~ ~ ! [SY315: $i] :
                                ~ ~ ( ~ ( in @ SY358 @ SY315 )
                                    | ~ ( in @ SY315 @ SV89 ) )
                        | ( in @ SY358 @ SV106 ) ) )
            | ( SV106
              = ( union @ SV89 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1086]) ).

thf(1111,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ~ ( ( SV116
             != ( set_difference @ SV90 @ SV107 ) )
            | ! [SY386: $i] :
                ~ ( ~ ( ~ ( in @ SY386 @ SV116 )
                      | ~ ( ~ ( in @ SY386 @ SV90 )
                          | ~ ~ ( in @ SY386 @ SV107 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY386 @ SV90 )
                            | ~ ~ ( in @ SY386 @ SV107 ) )
                      | ( in @ SY386 @ SV116 ) ) ) )
        | ~ ( ~ ! [SY387: $i] :
                  ~ ( ~ ( ~ ( in @ SY387 @ SV116 )
                        | ~ ( ~ ( in @ SY387 @ SV90 )
                            | ~ ~ ( in @ SY387 @ SV107 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY387 @ SV90 )
                              | ~ ~ ( in @ SY387 @ SV107 ) )
                        | ( in @ SY387 @ SV116 ) ) )
            | ( SV116
              = ( set_difference @ SV90 @ SV107 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1087]) ).

thf(1112,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ~ ( ~ ( subset @ SV91 @ SV108 )
            | ! [SY364: $i] :
                ( ~ ( in @ SY364 @ SV91 )
                | ( in @ SY364 @ SV108 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1088]) ).

thf(1113,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ~ ( ~ ! [SY365: $i] :
                  ( ~ ( in @ SY365 @ SV91 )
                  | ( in @ SY365 @ SV108 ) )
            | ( subset @ SV91 @ SV108 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1088]) ).

thf(1114,plain,
    ! [SV122: $i,SV117: $i,SV109: $i,SV92: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
                | ~ ( ~ ( in @ SV92 @ SV117 )
                    | ~ ( in @ SV109 @ SV122 ) ) )
            | ~ ( ~ ~ ( ~ ( in @ SV92 @ SV117 )
                      | ~ ( in @ SV109 @ SV122 ) )
                | ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1089]) ).

thf(1115,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ( SV94
         != ( singleton @ SV74 ) )
        | ! [SY326: $i] :
            ~ ( ~ ( ~ ( in @ SY326 @ SV94 )
                  | ( SY326 = SV74 ) )
              | ~ ( ( SY326 != SV74 )
                  | ( in @ SY326 @ SV94 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1090]) ).

thf(1116,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ~ ! [SY327: $i] :
              ~ ( ~ ( ~ ( in @ SY327 @ SV94 )
                    | ( SY327 = SV74 ) )
                | ~ ( ( SY327 != SV74 )
                    | ( in @ SY327 @ SV94 ) ) )
        | ( SV94
          = ( singleton @ SV74 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1091]) ).

thf(1117,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
                  | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 ) )
              | ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
                  | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) ) ) )
        = $false )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1092]) ).

thf(1118,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ~ ( ( SV110
             != ( set_intersection2 @ SV76 @ SV96 ) )
            | ! [SY368: $i] :
                ~ ( ~ ( ~ ( in @ SY368 @ SV110 )
                      | ~ ( ~ ( in @ SY368 @ SV76 )
                          | ~ ( in @ SY368 @ SV96 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY368 @ SV76 )
                            | ~ ( in @ SY368 @ SV96 ) )
                      | ( in @ SY368 @ SV110 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1093]) ).

thf(1119,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ~ ( ~ ! [SY369: $i] :
                  ~ ( ~ ( ~ ( in @ SY369 @ SV110 )
                        | ~ ( ~ ( in @ SY369 @ SV76 )
                            | ~ ( in @ SY369 @ SV96 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY369 @ SV76 )
                              | ~ ( in @ SY369 @ SV96 ) )
                        | ( in @ SY369 @ SV110 ) ) )
            | ( SV110
              = ( set_intersection2 @ SV76 @ SV96 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1093]) ).

thf(1120,plain,
    ! [SV77: $i] :
      ( ( ( SV77 != empty_set )
        = $true )
      | ( ( ! [SY261: $i] :
              ~ ( in @ SY261 @ SV77 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1094]) ).

thf(1121,plain,
    ! [SV77: $i] :
      ( ( ( ~ ! [SY262: $i] :
                ~ ( in @ SY262 @ SV77 ) )
        = $true )
      | ( ( SV77 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1095]) ).

thf(1122,plain,
    ! [SV78: $i,SV97: $i] :
      ( ( ( in @ SV97 @ SV78 )
        = $false )
      | ( ( in @ SV78 @ SV97 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1096]) ).

thf(1123,plain,
    ! [SV98: $i,SV79: $i] :
      ( ( ( ~ ( in @ SV79 @ SV98 ) )
        = $true )
      | ( ( ~ ( empty @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1097]) ).

thf(1124,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ~ ( ( SV111
             != ( set_union2 @ SV80 @ SV99 ) )
            | ! [SY370: $i] :
                ~ ( ~ ( ~ ( in @ SY370 @ SV111 )
                      | ( in @ SY370 @ SV80 )
                      | ( in @ SY370 @ SV99 ) )
                  | ~ ( ~ ( ( in @ SY370 @ SV80 )
                          | ( in @ SY370 @ SV99 ) )
                      | ( in @ SY370 @ SV111 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1098]) ).

thf(1125,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ~ ( ~ ! [SY371: $i] :
                  ~ ( ~ ( ~ ( in @ SY371 @ SV111 )
                        | ( in @ SY371 @ SV80 )
                        | ( in @ SY371 @ SV99 ) )
                    | ~ ( ~ ( ( in @ SY371 @ SV80 )
                            | ( in @ SY371 @ SV99 ) )
                        | ( in @ SY371 @ SV111 ) ) )
            | ( SV111
              = ( set_union2 @ SV80 @ SV99 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1098]) ).

thf(1126,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( ~ ( ( SV118
               != ( relation_rng @ SV81 ) )
              | ! [SY389: $i] :
                  ~ ( ~ ( ~ ( in @ SY389 @ SV118 )
                        | ~ ! [SY271: $i] :
                              ~ ( in @ ( ordered_pair @ SY271 @ SY389 ) @ SV81 ) )
                    | ~ ( ~ ~ ! [SY272: $i] :
                                ~ ( in @ ( ordered_pair @ SY272 @ SY389 ) @ SV81 )
                        | ( in @ SY389 @ SV118 ) ) ) )
          | ~ ( ~ ! [SY392: $i] :
                    ~ ( ~ ( ~ ( in @ SY392 @ SV118 )
                          | ~ ! [SY274: $i] :
                                ~ ( in @ ( ordered_pair @ SY274 @ SY392 ) @ SV81 ) )
                      | ~ ( ~ ~ ! [SY275: $i] :
                                  ~ ( in @ ( ordered_pair @ SY275 @ SY392 ) @ SV81 )
                          | ( in @ SY392 @ SV118 ) ) )
              | ( SV118
                = ( relation_rng @ SV81 ) ) ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1099]) ).

thf(1127,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( ~ ( ( SV119
               != ( relation_dom @ SV83 ) )
              | ! [SY395: $i] :
                  ~ ( ~ ( ~ ( in @ SY395 @ SV119 )
                        | ~ ! [SY279: $i] :
                              ~ ( in @ ( ordered_pair @ SY395 @ SY279 ) @ SV83 ) )
                    | ~ ( ~ ~ ! [SY280: $i] :
                                ~ ( in @ ( ordered_pair @ SY395 @ SY280 ) @ SV83 )
                        | ( in @ SY395 @ SV119 ) ) ) )
          | ~ ( ~ ! [SY398: $i] :
                    ~ ( ~ ( ~ ( in @ SY398 @ SV119 )
                          | ~ ! [SY282: $i] :
                                ~ ( in @ ( ordered_pair @ SY398 @ SY282 ) @ SV83 ) )
                      | ~ ( ~ ~ ! [SY283: $i] :
                                  ~ ( in @ ( ordered_pair @ SY398 @ SY283 ) @ SV83 )
                          | ( in @ SY398 @ SV119 ) ) )
              | ( SV119
                = ( relation_dom @ SV83 ) ) ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1101]) ).

thf(1128,plain,
    ! [SV120: $i,SV112: $i,SV101: $i,SV84: $i] :
      ( ( ( ( ordered_pair @ SV84 @ SV101 )
         != ( ordered_pair @ SV112 @ SV120 ) )
        = $true )
      | ( ( ~ ( ( SV84 != SV112 )
              | ( SV101 != SV120 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1102]) ).

thf(1129,plain,
    ! [SV121: $i,SV113: $i,SV102: $i,SV85: $i] :
      ( ( ~ ( ~ ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
            | ~ ( ~ ( in @ SV85 @ SV113 )
                | ~ ( in @ SV102 @ SV121 ) ) )
        | ~ ( ~ ~ ( ~ ( in @ SV85 @ SV113 )
                  | ~ ( in @ SV102 @ SV121 ) )
            | ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1103]) ).

thf(1130,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ~ ( ~ ~ ( disjoint @ SV86 @ SV103 )
              | ~ ! [SY339: $i] :
                    ~ ~ ( ~ ( in @ SY339 @ SV86 )
                        | ~ ( in @ SY339 @ SV103 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1104]) ).

thf(1131,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ~ ( ~ ~ ! [SY340: $i] :
                      ~ ~ ( ~ ( in @ SY340 @ SV86 )
                          | ~ ( in @ SY340 @ SV103 ) )
              | ~ ( disjoint @ SV86 @ SV103 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1105]) ).

thf(1132,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ~ ( ( SV114
             != ( cartesian_product2 @ SV87 @ SV104 ) )
            | ! [SY374: $i] :
                ~ ( ~ ( ~ ( in @ SY374 @ SV114 )
                      | ~ ! [SY343: $i] :
                            ~ ~ ! [SY344: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY343 @ SV87 )
                                            | ~ ( in @ SY344 @ SV104 ) )
                                      | ( SY374
                                       != ( ordered_pair @ SY343 @ SY344 ) ) ) )
                  | ~ ( ~ ~ ! [SY345: $i] :
                              ~ ~ ! [SY346: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY345 @ SV87 )
                                              | ~ ( in @ SY346 @ SV104 ) )
                                        | ( SY374
                                         != ( ordered_pair @ SY345 @ SY346 ) ) )
                      | ( in @ SY374 @ SV114 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1106]) ).

thf(1133,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ~ ( ~ ! [SY379: $i] :
                  ~ ( ~ ( ~ ( in @ SY379 @ SV114 )
                        | ~ ! [SY348: $i] :
                              ~ ~ ! [SY349: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY348 @ SV87 )
                                              | ~ ( in @ SY349 @ SV104 ) )
                                        | ( SY379
                                         != ( ordered_pair @ SY348 @ SY349 ) ) ) )
                    | ~ ( ~ ~ ! [SY350: $i] :
                                ~ ~ ! [SY351: $i] :
                                      ~ ~ ( ~ ~ ( ~ ( in @ SY350 @ SV87 )
                                                | ~ ( in @ SY351 @ SV104 ) )
                                          | ( SY379
                                           != ( ordered_pair @ SY350 @ SY351 ) ) )
                        | ( in @ SY379 @ SV114 ) ) )
            | ( SV114
              = ( cartesian_product2 @ SV87 @ SV104 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1106]) ).

thf(1134,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ~ ( ( SV115
             != ( unordered_pair @ SV88 @ SV105 ) )
            | ! [SY384: $i] :
                ~ ( ~ ( ~ ( in @ SY384 @ SV115 )
                      | ( SY384 = SV88 )
                      | ( SY384 = SV105 ) )
                  | ~ ( ~ ( ( SY384 = SV88 )
                          | ( SY384 = SV105 ) )
                      | ( in @ SY384 @ SV115 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1107]) ).

thf(1135,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ~ ( ~ ! [SY385: $i] :
                  ~ ( ~ ( ~ ( in @ SY385 @ SV115 )
                        | ( SY385 = SV88 )
                        | ( SY385 = SV105 ) )
                    | ~ ( ~ ( ( SY385 = SV88 )
                            | ( SY385 = SV105 ) )
                        | ( in @ SY385 @ SV115 ) ) )
            | ( SV115
              = ( unordered_pair @ SV88 @ SV105 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1107]) ).

thf(1136,plain,
    ( ( ~ ( empty @ sK33_SX0 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1108]) ).

thf(1137,plain,
    ( ( ~ ( relation @ sK33_SX0 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1108]) ).

thf(1138,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ( SV106
         != ( union @ SV89 ) )
        | ! [SY355: $i] :
            ~ ( ~ ( ~ ( in @ SY355 @ SV106 )
                  | ~ ! [SY311: $i] :
                        ~ ~ ( ~ ( in @ SY355 @ SY311 )
                            | ~ ( in @ SY311 @ SV89 ) ) )
              | ~ ( ~ ~ ! [SY312: $i] :
                          ~ ~ ( ~ ( in @ SY355 @ SY312 )
                              | ~ ( in @ SY312 @ SV89 ) )
                  | ( in @ SY355 @ SV106 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1109]) ).

thf(1139,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ~ ! [SY358: $i] :
              ~ ( ~ ( ~ ( in @ SY358 @ SV106 )
                    | ~ ! [SY314: $i] :
                          ~ ~ ( ~ ( in @ SY358 @ SY314 )
                              | ~ ( in @ SY314 @ SV89 ) ) )
                | ~ ( ~ ~ ! [SY315: $i] :
                            ~ ~ ( ~ ( in @ SY358 @ SY315 )
                                | ~ ( in @ SY315 @ SV89 ) )
                    | ( in @ SY358 @ SV106 ) ) )
        | ( SV106
          = ( union @ SV89 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1110]) ).

thf(1140,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ~ ( ( SV116
             != ( set_difference @ SV90 @ SV107 ) )
            | ! [SY386: $i] :
                ~ ( ~ ( ~ ( in @ SY386 @ SV116 )
                      | ~ ( ~ ( in @ SY386 @ SV90 )
                          | ~ ~ ( in @ SY386 @ SV107 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY386 @ SV90 )
                            | ~ ~ ( in @ SY386 @ SV107 ) )
                      | ( in @ SY386 @ SV116 ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1111]) ).

thf(1141,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ~ ( ~ ! [SY387: $i] :
                  ~ ( ~ ( ~ ( in @ SY387 @ SV116 )
                        | ~ ( ~ ( in @ SY387 @ SV90 )
                            | ~ ~ ( in @ SY387 @ SV107 ) ) )
                    | ~ ( ~ ~ ( ~ ( in @ SY387 @ SV90 )
                              | ~ ~ ( in @ SY387 @ SV107 ) )
                        | ( in @ SY387 @ SV116 ) ) )
            | ( SV116
              = ( set_difference @ SV90 @ SV107 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1111]) ).

thf(1142,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ~ ( subset @ SV91 @ SV108 )
        | ! [SY364: $i] :
            ( ~ ( in @ SY364 @ SV91 )
            | ( in @ SY364 @ SV108 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1112]) ).

thf(1143,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ~ ! [SY365: $i] :
              ( ~ ( in @ SY365 @ SV91 )
              | ( in @ SY365 @ SV108 ) )
        | ( subset @ SV91 @ SV108 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1113]) ).

thf(1144,plain,
    ! [SV122: $i,SV117: $i,SV109: $i,SV92: $i] :
      ( ( ~ ( ~ ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
            | ~ ( ~ ( in @ SV92 @ SV117 )
                | ~ ( in @ SV109 @ SV122 ) ) )
        | ~ ( ~ ~ ( ~ ( in @ SV92 @ SV117 )
                  | ~ ( in @ SV109 @ SV122 ) )
            | ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1114]) ).

thf(1145,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ( SV94
         != ( singleton @ SV74 ) )
        = $true )
      | ( ( ! [SY326: $i] :
              ~ ( ~ ( ~ ( in @ SY326 @ SV94 )
                    | ( SY326 = SV74 ) )
                | ~ ( ( SY326 != SV74 )
                    | ( in @ SY326 @ SV94 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1115]) ).

thf(1146,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ( ~ ! [SY327: $i] :
                ~ ( ~ ( ~ ( in @ SY327 @ SV94 )
                      | ( SY327 = SV74 ) )
                  | ~ ( ( SY327 != SV74 )
                      | ( in @ SY327 @ SV94 ) ) ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1116]) ).

thf(1147,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
              | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 ) )
          | ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
              | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) ) )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1117]) ).

thf(1148,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ( SV110
         != ( set_intersection2 @ SV76 @ SV96 ) )
        | ! [SY368: $i] :
            ~ ( ~ ( ~ ( in @ SY368 @ SV110 )
                  | ~ ( ~ ( in @ SY368 @ SV76 )
                      | ~ ( in @ SY368 @ SV96 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY368 @ SV76 )
                        | ~ ( in @ SY368 @ SV96 ) )
                  | ( in @ SY368 @ SV110 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1118]) ).

thf(1149,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ~ ! [SY369: $i] :
              ~ ( ~ ( ~ ( in @ SY369 @ SV110 )
                    | ~ ( ~ ( in @ SY369 @ SV76 )
                        | ~ ( in @ SY369 @ SV96 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY369 @ SV76 )
                          | ~ ( in @ SY369 @ SV96 ) )
                    | ( in @ SY369 @ SV110 ) ) )
        | ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1119]) ).

thf(1150,plain,
    ! [SV77: $i] :
      ( ( ( SV77 = empty_set )
        = $false )
      | ( ( ! [SY261: $i] :
              ~ ( in @ SY261 @ SV77 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1120]) ).

thf(1151,plain,
    ! [SV77: $i] :
      ( ( ( ! [SY262: $i] :
              ~ ( in @ SY262 @ SV77 ) )
        = $false )
      | ( ( SV77 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1121]) ).

thf(1152,plain,
    ! [SV98: $i,SV79: $i] :
      ( ( ( in @ SV79 @ SV98 )
        = $false )
      | ( ( ~ ( empty @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1123]) ).

thf(1153,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ( SV111
         != ( set_union2 @ SV80 @ SV99 ) )
        | ! [SY370: $i] :
            ~ ( ~ ( ~ ( in @ SY370 @ SV111 )
                  | ( in @ SY370 @ SV80 )
                  | ( in @ SY370 @ SV99 ) )
              | ~ ( ~ ( ( in @ SY370 @ SV80 )
                      | ( in @ SY370 @ SV99 ) )
                  | ( in @ SY370 @ SV111 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1124]) ).

thf(1154,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ~ ! [SY371: $i] :
              ~ ( ~ ( ~ ( in @ SY371 @ SV111 )
                    | ( in @ SY371 @ SV80 )
                    | ( in @ SY371 @ SV99 ) )
                | ~ ( ~ ( ( in @ SY371 @ SV80 )
                        | ( in @ SY371 @ SV99 ) )
                    | ( in @ SY371 @ SV111 ) ) )
        | ( SV111
          = ( set_union2 @ SV80 @ SV99 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1125]) ).

thf(1155,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( ~ ( ( SV118
               != ( relation_rng @ SV81 ) )
              | ! [SY389: $i] :
                  ~ ( ~ ( ~ ( in @ SY389 @ SV118 )
                        | ~ ! [SY271: $i] :
                              ~ ( in @ ( ordered_pair @ SY271 @ SY389 ) @ SV81 ) )
                    | ~ ( ~ ~ ! [SY272: $i] :
                                ~ ( in @ ( ordered_pair @ SY272 @ SY389 ) @ SV81 )
                        | ( in @ SY389 @ SV118 ) ) ) ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1126]) ).

thf(1156,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( ~ ( ~ ! [SY392: $i] :
                    ~ ( ~ ( ~ ( in @ SY392 @ SV118 )
                          | ~ ! [SY274: $i] :
                                ~ ( in @ ( ordered_pair @ SY274 @ SY392 ) @ SV81 ) )
                      | ~ ( ~ ~ ! [SY275: $i] :
                                  ~ ( in @ ( ordered_pair @ SY275 @ SY392 ) @ SV81 )
                          | ( in @ SY392 @ SV118 ) ) )
              | ( SV118
                = ( relation_rng @ SV81 ) ) ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1126]) ).

thf(1157,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( ~ ( ( SV119
               != ( relation_dom @ SV83 ) )
              | ! [SY395: $i] :
                  ~ ( ~ ( ~ ( in @ SY395 @ SV119 )
                        | ~ ! [SY279: $i] :
                              ~ ( in @ ( ordered_pair @ SY395 @ SY279 ) @ SV83 ) )
                    | ~ ( ~ ~ ! [SY280: $i] :
                                ~ ( in @ ( ordered_pair @ SY395 @ SY280 ) @ SV83 )
                        | ( in @ SY395 @ SV119 ) ) ) ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1127]) ).

thf(1158,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( ~ ( ~ ! [SY398: $i] :
                    ~ ( ~ ( ~ ( in @ SY398 @ SV119 )
                          | ~ ! [SY282: $i] :
                                ~ ( in @ ( ordered_pair @ SY398 @ SY282 ) @ SV83 ) )
                      | ~ ( ~ ~ ! [SY283: $i] :
                                  ~ ( in @ ( ordered_pair @ SY398 @ SY283 ) @ SV83 )
                          | ( in @ SY398 @ SV119 ) ) )
              | ( SV119
                = ( relation_dom @ SV83 ) ) ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1127]) ).

thf(1159,plain,
    ! [SV120: $i,SV112: $i,SV101: $i,SV84: $i] :
      ( ( ( ( ordered_pair @ SV84 @ SV101 )
          = ( ordered_pair @ SV112 @ SV120 ) )
        = $false )
      | ( ( ~ ( ( SV84 != SV112 )
              | ( SV101 != SV120 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1128]) ).

thf(1160,plain,
    ! [SV121: $i,SV113: $i,SV102: $i,SV85: $i] :
      ( ( ~ ( ~ ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
            | ~ ( ~ ( in @ SV85 @ SV113 )
                | ~ ( in @ SV102 @ SV121 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1129]) ).

thf(1161,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ~ ( ~ ~ ( ~ ( in @ SV85 @ SV113 )
                  | ~ ( in @ SV102 @ SV121 ) )
            | ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1129]) ).

thf(1162,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ( ~ ~ ( disjoint @ SV86 @ SV103 )
            | ~ ! [SY339: $i] :
                  ~ ~ ( ~ ( in @ SY339 @ SV86 )
                      | ~ ( in @ SY339 @ SV103 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1130]) ).

thf(1163,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ( ~ ~ ! [SY340: $i] :
                    ~ ~ ( ~ ( in @ SY340 @ SV86 )
                        | ~ ( in @ SY340 @ SV103 ) )
            | ~ ( disjoint @ SV86 @ SV103 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1131]) ).

thf(1164,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ( SV114
         != ( cartesian_product2 @ SV87 @ SV104 ) )
        | ! [SY374: $i] :
            ~ ( ~ ( ~ ( in @ SY374 @ SV114 )
                  | ~ ! [SY343: $i] :
                        ~ ~ ! [SY344: $i] :
                              ~ ~ ( ~ ~ ( ~ ( in @ SY343 @ SV87 )
                                        | ~ ( in @ SY344 @ SV104 ) )
                                  | ( SY374
                                   != ( ordered_pair @ SY343 @ SY344 ) ) ) )
              | ~ ( ~ ~ ! [SY345: $i] :
                          ~ ~ ! [SY346: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY345 @ SV87 )
                                          | ~ ( in @ SY346 @ SV104 ) )
                                    | ( SY374
                                     != ( ordered_pair @ SY345 @ SY346 ) ) )
                  | ( in @ SY374 @ SV114 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1132]) ).

thf(1165,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ~ ! [SY379: $i] :
              ~ ( ~ ( ~ ( in @ SY379 @ SV114 )
                    | ~ ! [SY348: $i] :
                          ~ ~ ! [SY349: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY348 @ SV87 )
                                          | ~ ( in @ SY349 @ SV104 ) )
                                    | ( SY379
                                     != ( ordered_pair @ SY348 @ SY349 ) ) ) )
                | ~ ( ~ ~ ! [SY350: $i] :
                            ~ ~ ! [SY351: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY350 @ SV87 )
                                            | ~ ( in @ SY351 @ SV104 ) )
                                      | ( SY379
                                       != ( ordered_pair @ SY350 @ SY351 ) ) )
                    | ( in @ SY379 @ SV114 ) ) )
        | ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1133]) ).

thf(1166,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ( SV115
         != ( unordered_pair @ SV88 @ SV105 ) )
        | ! [SY384: $i] :
            ~ ( ~ ( ~ ( in @ SY384 @ SV115 )
                  | ( SY384 = SV88 )
                  | ( SY384 = SV105 ) )
              | ~ ( ~ ( ( SY384 = SV88 )
                      | ( SY384 = SV105 ) )
                  | ( in @ SY384 @ SV115 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1134]) ).

thf(1167,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ~ ! [SY385: $i] :
              ~ ( ~ ( ~ ( in @ SY385 @ SV115 )
                    | ( SY385 = SV88 )
                    | ( SY385 = SV105 ) )
                | ~ ( ~ ( ( SY385 = SV88 )
                        | ( SY385 = SV105 ) )
                    | ( in @ SY385 @ SV115 ) ) )
        | ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1135]) ).

thf(1168,plain,
    ( ( empty @ sK33_SX0 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1136]) ).

thf(1169,plain,
    ( ( relation @ sK33_SX0 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1137]) ).

thf(1170,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ( SV106
         != ( union @ SV89 ) )
        = $true )
      | ( ( ! [SY355: $i] :
              ~ ( ~ ( ~ ( in @ SY355 @ SV106 )
                    | ~ ! [SY311: $i] :
                          ~ ~ ( ~ ( in @ SY355 @ SY311 )
                              | ~ ( in @ SY311 @ SV89 ) ) )
                | ~ ( ~ ~ ! [SY312: $i] :
                            ~ ~ ( ~ ( in @ SY355 @ SY312 )
                                | ~ ( in @ SY312 @ SV89 ) )
                    | ( in @ SY355 @ SV106 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1138]) ).

thf(1171,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ( ~ ! [SY358: $i] :
                ~ ( ~ ( ~ ( in @ SY358 @ SV106 )
                      | ~ ! [SY314: $i] :
                            ~ ~ ( ~ ( in @ SY358 @ SY314 )
                                | ~ ( in @ SY314 @ SV89 ) ) )
                  | ~ ( ~ ~ ! [SY315: $i] :
                              ~ ~ ( ~ ( in @ SY358 @ SY315 )
                                  | ~ ( in @ SY315 @ SV89 ) )
                      | ( in @ SY358 @ SV106 ) ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1139]) ).

thf(1172,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ( SV116
         != ( set_difference @ SV90 @ SV107 ) )
        | ! [SY386: $i] :
            ~ ( ~ ( ~ ( in @ SY386 @ SV116 )
                  | ~ ( ~ ( in @ SY386 @ SV90 )
                      | ~ ~ ( in @ SY386 @ SV107 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SY386 @ SV90 )
                        | ~ ~ ( in @ SY386 @ SV107 ) )
                  | ( in @ SY386 @ SV116 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1140]) ).

thf(1173,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ~ ! [SY387: $i] :
              ~ ( ~ ( ~ ( in @ SY387 @ SV116 )
                    | ~ ( ~ ( in @ SY387 @ SV90 )
                        | ~ ~ ( in @ SY387 @ SV107 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY387 @ SV90 )
                          | ~ ~ ( in @ SY387 @ SV107 ) )
                    | ( in @ SY387 @ SV116 ) ) )
        | ( SV116
          = ( set_difference @ SV90 @ SV107 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1141]) ).

thf(1174,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ( ~ ( subset @ SV91 @ SV108 ) )
        = $true )
      | ( ( ! [SY364: $i] :
              ( ~ ( in @ SY364 @ SV91 )
              | ( in @ SY364 @ SV108 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1142]) ).

thf(1175,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ( ~ ! [SY365: $i] :
                ( ~ ( in @ SY365 @ SV91 )
                | ( in @ SY365 @ SV108 ) ) )
        = $true )
      | ( ( subset @ SV91 @ SV108 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1143]) ).

thf(1176,plain,
    ! [SV122: $i,SV117: $i,SV109: $i,SV92: $i] :
      ( ( ~ ( ~ ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
            | ~ ( ~ ( in @ SV92 @ SV117 )
                | ~ ( in @ SV109 @ SV122 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1144]) ).

thf(1177,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ~ ( ~ ~ ( ~ ( in @ SV92 @ SV117 )
                  | ~ ( in @ SV109 @ SV122 ) )
            | ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1144]) ).

thf(1178,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ( SV94
          = ( singleton @ SV74 ) )
        = $false )
      | ( ( ! [SY326: $i] :
              ~ ( ~ ( ~ ( in @ SY326 @ SV94 )
                    | ( SY326 = SV74 ) )
                | ~ ( ( SY326 != SV74 )
                    | ( in @ SY326 @ SV94 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1145]) ).

thf(1179,plain,
    ! [SV74: $i,SV94: $i] :
      ( ( ( ! [SY327: $i] :
              ~ ( ~ ( ~ ( in @ SY327 @ SV94 )
                    | ( SY327 = SV74 ) )
                | ~ ( ( SY327 != SV74 )
                    | ( in @ SY327 @ SV94 ) ) ) )
        = $false )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1146]) ).

thf(1180,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
              | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 ) ) )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
              | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) ) )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1147]) ).

thf(1181,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ( SV110
         != ( set_intersection2 @ SV76 @ SV96 ) )
        = $true )
      | ( ( ! [SY368: $i] :
              ~ ( ~ ( ~ ( in @ SY368 @ SV110 )
                    | ~ ( ~ ( in @ SY368 @ SV76 )
                        | ~ ( in @ SY368 @ SV96 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY368 @ SV76 )
                          | ~ ( in @ SY368 @ SV96 ) )
                    | ( in @ SY368 @ SV110 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1148]) ).

thf(1182,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ( ~ ! [SY369: $i] :
                ~ ( ~ ( ~ ( in @ SY369 @ SV110 )
                      | ~ ( ~ ( in @ SY369 @ SV76 )
                          | ~ ( in @ SY369 @ SV96 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY369 @ SV76 )
                            | ~ ( in @ SY369 @ SV96 ) )
                      | ( in @ SY369 @ SV110 ) ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1149]) ).

thf(1183,plain,
    ! [SV77: $i,SV123: $i] :
      ( ( ( ~ ( in @ SV123 @ SV77 ) )
        = $true )
      | ( ( SV77 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1150]) ).

thf(1184,plain,
    ! [SV77: $i] :
      ( ( ( ~ ( in @ ( sK35_SY262 @ SV77 ) @ SV77 ) )
        = $false )
      | ( ( SV77 = empty_set )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1151]) ).

thf(1185,plain,
    ! [SV79: $i,SV98: $i] :
      ( ( ( empty @ SV98 )
        = $false )
      | ( ( in @ SV79 @ SV98 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1152]) ).

thf(1186,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ( SV111
         != ( set_union2 @ SV80 @ SV99 ) )
        = $true )
      | ( ( ! [SY370: $i] :
              ~ ( ~ ( ~ ( in @ SY370 @ SV111 )
                    | ( in @ SY370 @ SV80 )
                    | ( in @ SY370 @ SV99 ) )
                | ~ ( ~ ( ( in @ SY370 @ SV80 )
                        | ( in @ SY370 @ SV99 ) )
                    | ( in @ SY370 @ SV111 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1153]) ).

thf(1187,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ( ~ ! [SY371: $i] :
                ~ ( ~ ( ~ ( in @ SY371 @ SV111 )
                      | ( in @ SY371 @ SV80 )
                      | ( in @ SY371 @ SV99 ) )
                  | ~ ( ~ ( ( in @ SY371 @ SV80 )
                          | ( in @ SY371 @ SV99 ) )
                      | ( in @ SY371 @ SV111 ) ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1154]) ).

thf(1188,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( ( SV118
           != ( relation_rng @ SV81 ) )
          | ! [SY389: $i] :
              ~ ( ~ ( ~ ( in @ SY389 @ SV118 )
                    | ~ ! [SY271: $i] :
                          ~ ( in @ ( ordered_pair @ SY271 @ SY389 ) @ SV81 ) )
                | ~ ( ~ ~ ! [SY272: $i] :
                            ~ ( in @ ( ordered_pair @ SY272 @ SY389 ) @ SV81 )
                    | ( in @ SY389 @ SV118 ) ) ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1155]) ).

thf(1189,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( ~ ! [SY392: $i] :
                ~ ( ~ ( ~ ( in @ SY392 @ SV118 )
                      | ~ ! [SY274: $i] :
                            ~ ( in @ ( ordered_pair @ SY274 @ SY392 ) @ SV81 ) )
                  | ~ ( ~ ~ ! [SY275: $i] :
                              ~ ( in @ ( ordered_pair @ SY275 @ SY392 ) @ SV81 )
                      | ( in @ SY392 @ SV118 ) ) )
          | ( SV118
            = ( relation_rng @ SV81 ) ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1156]) ).

thf(1190,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( ( SV119
           != ( relation_dom @ SV83 ) )
          | ! [SY395: $i] :
              ~ ( ~ ( ~ ( in @ SY395 @ SV119 )
                    | ~ ! [SY279: $i] :
                          ~ ( in @ ( ordered_pair @ SY395 @ SY279 ) @ SV83 ) )
                | ~ ( ~ ~ ! [SY280: $i] :
                            ~ ( in @ ( ordered_pair @ SY395 @ SY280 ) @ SV83 )
                    | ( in @ SY395 @ SV119 ) ) ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1157]) ).

thf(1191,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( ~ ! [SY398: $i] :
                ~ ( ~ ( ~ ( in @ SY398 @ SV119 )
                      | ~ ! [SY282: $i] :
                            ~ ( in @ ( ordered_pair @ SY398 @ SY282 ) @ SV83 ) )
                  | ~ ( ~ ~ ! [SY283: $i] :
                              ~ ( in @ ( ordered_pair @ SY398 @ SY283 ) @ SV83 )
                      | ( in @ SY398 @ SV119 ) ) )
          | ( SV119
            = ( relation_dom @ SV83 ) ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1158]) ).

thf(1192,plain,
    ! [SV120: $i,SV101: $i,SV112: $i,SV84: $i] :
      ( ( ( ( SV84 != SV112 )
          | ( SV101 != SV120 ) )
        = $false )
      | ( ( ( ordered_pair @ SV84 @ SV101 )
          = ( ordered_pair @ SV112 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1159]) ).

thf(1193,plain,
    ! [SV121: $i,SV113: $i,SV102: $i,SV85: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        | ~ ( ~ ( in @ SV85 @ SV113 )
            | ~ ( in @ SV102 @ SV121 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1160]) ).

thf(1194,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ~ ~ ( ~ ( in @ SV85 @ SV113 )
              | ~ ( in @ SV102 @ SV121 ) )
        | ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1161]) ).

thf(1195,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ~ ( disjoint @ SV86 @ SV103 )
        | ~ ! [SY339: $i] :
              ~ ~ ( ~ ( in @ SY339 @ SV86 )
                  | ~ ( in @ SY339 @ SV103 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1162]) ).

thf(1196,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ~ ~ ! [SY340: $i] :
                ~ ~ ( ~ ( in @ SY340 @ SV86 )
                    | ~ ( in @ SY340 @ SV103 ) )
        | ~ ( disjoint @ SV86 @ SV103 ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1163]) ).

thf(1197,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ( SV114
         != ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true )
      | ( ( ! [SY374: $i] :
              ~ ( ~ ( ~ ( in @ SY374 @ SV114 )
                    | ~ ! [SY343: $i] :
                          ~ ~ ! [SY344: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY343 @ SV87 )
                                          | ~ ( in @ SY344 @ SV104 ) )
                                    | ( SY374
                                     != ( ordered_pair @ SY343 @ SY344 ) ) ) )
                | ~ ( ~ ~ ! [SY345: $i] :
                            ~ ~ ! [SY346: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY345 @ SV87 )
                                            | ~ ( in @ SY346 @ SV104 ) )
                                      | ( SY374
                                       != ( ordered_pair @ SY345 @ SY346 ) ) )
                    | ( in @ SY374 @ SV114 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1164]) ).

thf(1198,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ( ~ ! [SY379: $i] :
                ~ ( ~ ( ~ ( in @ SY379 @ SV114 )
                      | ~ ! [SY348: $i] :
                            ~ ~ ! [SY349: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY348 @ SV87 )
                                            | ~ ( in @ SY349 @ SV104 ) )
                                      | ( SY379
                                       != ( ordered_pair @ SY348 @ SY349 ) ) ) )
                  | ~ ( ~ ~ ! [SY350: $i] :
                              ~ ~ ! [SY351: $i] :
                                    ~ ~ ( ~ ~ ( ~ ( in @ SY350 @ SV87 )
                                              | ~ ( in @ SY351 @ SV104 ) )
                                        | ( SY379
                                         != ( ordered_pair @ SY350 @ SY351 ) ) )
                      | ( in @ SY379 @ SV114 ) ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1165]) ).

thf(1199,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ( SV115
         != ( unordered_pair @ SV88 @ SV105 ) )
        = $true )
      | ( ( ! [SY384: $i] :
              ~ ( ~ ( ~ ( in @ SY384 @ SV115 )
                    | ( SY384 = SV88 )
                    | ( SY384 = SV105 ) )
                | ~ ( ~ ( ( SY384 = SV88 )
                        | ( SY384 = SV105 ) )
                    | ( in @ SY384 @ SV115 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1166]) ).

thf(1200,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ( ~ ! [SY385: $i] :
                ~ ( ~ ( ~ ( in @ SY385 @ SV115 )
                      | ( SY385 = SV88 )
                      | ( SY385 = SV105 ) )
                  | ~ ( ~ ( ( SY385 = SV88 )
                          | ( SY385 = SV105 ) )
                      | ( in @ SY385 @ SV115 ) ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1167]) ).

thf(1201,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ( SV106
          = ( union @ SV89 ) )
        = $false )
      | ( ( ! [SY355: $i] :
              ~ ( ~ ( ~ ( in @ SY355 @ SV106 )
                    | ~ ! [SY311: $i] :
                          ~ ~ ( ~ ( in @ SY355 @ SY311 )
                              | ~ ( in @ SY311 @ SV89 ) ) )
                | ~ ( ~ ~ ! [SY312: $i] :
                            ~ ~ ( ~ ( in @ SY355 @ SY312 )
                                | ~ ( in @ SY312 @ SV89 ) )
                    | ( in @ SY355 @ SV106 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1170]) ).

thf(1202,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ( ! [SY358: $i] :
              ~ ( ~ ( ~ ( in @ SY358 @ SV106 )
                    | ~ ! [SY314: $i] :
                          ~ ~ ( ~ ( in @ SY358 @ SY314 )
                              | ~ ( in @ SY314 @ SV89 ) ) )
                | ~ ( ~ ~ ! [SY315: $i] :
                            ~ ~ ( ~ ( in @ SY358 @ SY315 )
                                | ~ ( in @ SY315 @ SV89 ) )
                    | ( in @ SY358 @ SV106 ) ) ) )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1171]) ).

thf(1203,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ( SV116
         != ( set_difference @ SV90 @ SV107 ) )
        = $true )
      | ( ( ! [SY386: $i] :
              ~ ( ~ ( ~ ( in @ SY386 @ SV116 )
                    | ~ ( ~ ( in @ SY386 @ SV90 )
                        | ~ ~ ( in @ SY386 @ SV107 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY386 @ SV90 )
                          | ~ ~ ( in @ SY386 @ SV107 ) )
                    | ( in @ SY386 @ SV116 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1172]) ).

thf(1204,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ( ~ ! [SY387: $i] :
                ~ ( ~ ( ~ ( in @ SY387 @ SV116 )
                      | ~ ( ~ ( in @ SY387 @ SV90 )
                          | ~ ~ ( in @ SY387 @ SV107 ) ) )
                  | ~ ( ~ ~ ( ~ ( in @ SY387 @ SV90 )
                            | ~ ~ ( in @ SY387 @ SV107 ) )
                      | ( in @ SY387 @ SV116 ) ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1173]) ).

thf(1205,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ( subset @ SV91 @ SV108 )
        = $false )
      | ( ( ! [SY364: $i] :
              ( ~ ( in @ SY364 @ SV91 )
              | ( in @ SY364 @ SV108 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1174]) ).

thf(1206,plain,
    ! [SV108: $i,SV91: $i] :
      ( ( ( ! [SY365: $i] :
              ( ~ ( in @ SY365 @ SV91 )
              | ( in @ SY365 @ SV108 ) ) )
        = $false )
      | ( ( subset @ SV91 @ SV108 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1175]) ).

thf(1207,plain,
    ! [SV122: $i,SV117: $i,SV109: $i,SV92: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        | ~ ( ~ ( in @ SV92 @ SV117 )
            | ~ ( in @ SV109 @ SV122 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1176]) ).

thf(1208,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ~ ~ ( ~ ( in @ SV92 @ SV117 )
              | ~ ( in @ SV109 @ SV122 ) )
        | ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1177]) ).

thf(1209,plain,
    ! [SV74: $i,SV94: $i,SV124: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV124 @ SV94 )
                  | ( SV124 = SV74 ) )
              | ~ ( ( SV124 != SV74 )
                  | ( in @ SV124 @ SV94 ) ) ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1178]) ).

thf(1210,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
                  | ( ( sK36_SY327 @ SV74 @ SV94 )
                    = SV74 ) )
              | ~ ( ( ( sK36_SY327 @ SV74 @ SV94 )
                   != SV74 )
                  | ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) ) ) )
        = $false )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1179]) ).

thf(1211,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
          | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
              | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) ) )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1180]) ).

thf(1212,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false )
      | ( ( ! [SY368: $i] :
              ~ ( ~ ( ~ ( in @ SY368 @ SV110 )
                    | ~ ( ~ ( in @ SY368 @ SV76 )
                        | ~ ( in @ SY368 @ SV96 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY368 @ SV76 )
                          | ~ ( in @ SY368 @ SV96 ) )
                    | ( in @ SY368 @ SV110 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1181]) ).

thf(1213,plain,
    ! [SV96: $i,SV76: $i,SV110: $i] :
      ( ( ( ! [SY369: $i] :
              ~ ( ~ ( ~ ( in @ SY369 @ SV110 )
                    | ~ ( ~ ( in @ SY369 @ SV76 )
                        | ~ ( in @ SY369 @ SV96 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY369 @ SV76 )
                          | ~ ( in @ SY369 @ SV96 ) )
                    | ( in @ SY369 @ SV110 ) ) ) )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1182]) ).

thf(1214,plain,
    ! [SV77: $i,SV123: $i] :
      ( ( ( in @ SV123 @ SV77 )
        = $false )
      | ( ( SV77 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1183]) ).

thf(1215,plain,
    ! [SV77: $i] :
      ( ( ( in @ ( sK35_SY262 @ SV77 ) @ SV77 )
        = $true )
      | ( ( SV77 = empty_set )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1184]) ).

thf(1216,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false )
      | ( ( ! [SY370: $i] :
              ~ ( ~ ( ~ ( in @ SY370 @ SV111 )
                    | ( in @ SY370 @ SV80 )
                    | ( in @ SY370 @ SV99 ) )
                | ~ ( ~ ( ( in @ SY370 @ SV80 )
                        | ( in @ SY370 @ SV99 ) )
                    | ( in @ SY370 @ SV111 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1186]) ).

thf(1217,plain,
    ! [SV99: $i,SV80: $i,SV111: $i] :
      ( ( ( ! [SY371: $i] :
              ~ ( ~ ( ~ ( in @ SY371 @ SV111 )
                    | ( in @ SY371 @ SV80 )
                    | ( in @ SY371 @ SV99 ) )
                | ~ ( ~ ( ( in @ SY371 @ SV80 )
                        | ( in @ SY371 @ SV99 ) )
                    | ( in @ SY371 @ SV111 ) ) ) )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1187]) ).

thf(1218,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( SV118
         != ( relation_rng @ SV81 ) )
        = $true )
      | ( ( ! [SY389: $i] :
              ~ ( ~ ( ~ ( in @ SY389 @ SV118 )
                    | ~ ! [SY271: $i] :
                          ~ ( in @ ( ordered_pair @ SY271 @ SY389 ) @ SV81 ) )
                | ~ ( ~ ~ ! [SY272: $i] :
                            ~ ( in @ ( ordered_pair @ SY272 @ SY389 ) @ SV81 )
                    | ( in @ SY389 @ SV118 ) ) ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1188]) ).

thf(1219,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( ~ ! [SY392: $i] :
                ~ ( ~ ( ~ ( in @ SY392 @ SV118 )
                      | ~ ! [SY274: $i] :
                            ~ ( in @ ( ordered_pair @ SY274 @ SY392 ) @ SV81 ) )
                  | ~ ( ~ ~ ! [SY275: $i] :
                              ~ ( in @ ( ordered_pair @ SY275 @ SY392 ) @ SV81 )
                      | ( in @ SY392 @ SV118 ) ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1189]) ).

thf(1220,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( SV119
         != ( relation_dom @ SV83 ) )
        = $true )
      | ( ( ! [SY395: $i] :
              ~ ( ~ ( ~ ( in @ SY395 @ SV119 )
                    | ~ ! [SY279: $i] :
                          ~ ( in @ ( ordered_pair @ SY395 @ SY279 ) @ SV83 ) )
                | ~ ( ~ ~ ! [SY280: $i] :
                            ~ ( in @ ( ordered_pair @ SY395 @ SY280 ) @ SV83 )
                    | ( in @ SY395 @ SV119 ) ) ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1190]) ).

thf(1221,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( ~ ! [SY398: $i] :
                ~ ( ~ ( ~ ( in @ SY398 @ SV119 )
                      | ~ ! [SY282: $i] :
                            ~ ( in @ ( ordered_pair @ SY398 @ SY282 ) @ SV83 ) )
                  | ~ ( ~ ~ ! [SY283: $i] :
                              ~ ( in @ ( ordered_pair @ SY398 @ SY283 ) @ SV83 )
                      | ( in @ SY398 @ SV119 ) ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1191]) ).

thf(1222,plain,
    ! [SV120: $i,SV101: $i,SV112: $i,SV84: $i] :
      ( ( ( SV84 != SV112 )
        = $false )
      | ( ( ( ordered_pair @ SV84 @ SV101 )
          = ( ordered_pair @ SV112 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1192]) ).

thf(1223,plain,
    ! [SV112: $i,SV84: $i,SV120: $i,SV101: $i] :
      ( ( ( SV101 != SV120 )
        = $false )
      | ( ( ( ordered_pair @ SV84 @ SV101 )
          = ( ordered_pair @ SV112 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1192]) ).

thf(1224,plain,
    ! [SV121: $i,SV113: $i,SV102: $i,SV85: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV85 @ SV113 )
              | ~ ( in @ SV102 @ SV121 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1193]) ).

thf(1225,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV85 @ SV113 )
                | ~ ( in @ SV102 @ SV121 ) ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1194]) ).

thf(1226,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ( ~ ~ ( disjoint @ SV86 @ SV103 ) )
        = $true )
      | ( ( ~ ! [SY339: $i] :
                ~ ~ ( ~ ( in @ SY339 @ SV86 )
                    | ~ ( in @ SY339 @ SV103 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1195]) ).

thf(1227,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ( ~ ~ ! [SY340: $i] :
                  ~ ~ ( ~ ( in @ SY340 @ SV86 )
                      | ~ ( in @ SY340 @ SV103 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1196]) ).

thf(1228,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false )
      | ( ( ! [SY374: $i] :
              ~ ( ~ ( ~ ( in @ SY374 @ SV114 )
                    | ~ ! [SY343: $i] :
                          ~ ~ ! [SY344: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY343 @ SV87 )
                                          | ~ ( in @ SY344 @ SV104 ) )
                                    | ( SY374
                                     != ( ordered_pair @ SY343 @ SY344 ) ) ) )
                | ~ ( ~ ~ ! [SY345: $i] :
                            ~ ~ ! [SY346: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY345 @ SV87 )
                                            | ~ ( in @ SY346 @ SV104 ) )
                                      | ( SY374
                                       != ( ordered_pair @ SY345 @ SY346 ) ) )
                    | ( in @ SY374 @ SV114 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1197]) ).

thf(1229,plain,
    ! [SV104: $i,SV87: $i,SV114: $i] :
      ( ( ( ! [SY379: $i] :
              ~ ( ~ ( ~ ( in @ SY379 @ SV114 )
                    | ~ ! [SY348: $i] :
                          ~ ~ ! [SY349: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY348 @ SV87 )
                                          | ~ ( in @ SY349 @ SV104 ) )
                                    | ( SY379
                                     != ( ordered_pair @ SY348 @ SY349 ) ) ) )
                | ~ ( ~ ~ ! [SY350: $i] :
                            ~ ~ ! [SY351: $i] :
                                  ~ ~ ( ~ ~ ( ~ ( in @ SY350 @ SV87 )
                                            | ~ ( in @ SY351 @ SV104 ) )
                                      | ( SY379
                                       != ( ordered_pair @ SY350 @ SY351 ) ) )
                    | ( in @ SY379 @ SV114 ) ) ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1198]) ).

thf(1230,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false )
      | ( ( ! [SY384: $i] :
              ~ ( ~ ( ~ ( in @ SY384 @ SV115 )
                    | ( SY384 = SV88 )
                    | ( SY384 = SV105 ) )
                | ~ ( ~ ( ( SY384 = SV88 )
                        | ( SY384 = SV105 ) )
                    | ( in @ SY384 @ SV115 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1199]) ).

thf(1231,plain,
    ! [SV105: $i,SV88: $i,SV115: $i] :
      ( ( ( ! [SY385: $i] :
              ~ ( ~ ( ~ ( in @ SY385 @ SV115 )
                    | ( SY385 = SV88 )
                    | ( SY385 = SV105 ) )
                | ~ ( ~ ( ( SY385 = SV88 )
                        | ( SY385 = SV105 ) )
                    | ( in @ SY385 @ SV115 ) ) ) )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1200]) ).

thf(1232,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV125 @ SV106 )
                  | ~ ! [SY401: $i] :
                        ~ ~ ( ~ ( in @ SV125 @ SY401 )
                            | ~ ( in @ SY401 @ SV89 ) ) )
              | ~ ( ~ ~ ! [SY402: $i] :
                          ~ ~ ( ~ ( in @ SV125 @ SY402 )
                              | ~ ( in @ SY402 @ SV89 ) )
                  | ( in @ SV125 @ SV106 ) ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1201]) ).

thf(1233,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
                  | ~ ! [SY403: $i] :
                        ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY403 )
                            | ~ ( in @ SY403 @ SV89 ) ) )
              | ~ ( ~ ~ ! [SY404: $i] :
                          ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                              | ~ ( in @ SY404 @ SV89 ) )
                  | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) ) )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1202]) ).

thf(1234,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false )
      | ( ( ! [SY386: $i] :
              ~ ( ~ ( ~ ( in @ SY386 @ SV116 )
                    | ~ ( ~ ( in @ SY386 @ SV90 )
                        | ~ ~ ( in @ SY386 @ SV107 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY386 @ SV90 )
                          | ~ ~ ( in @ SY386 @ SV107 ) )
                    | ( in @ SY386 @ SV116 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1203]) ).

thf(1235,plain,
    ! [SV107: $i,SV90: $i,SV116: $i] :
      ( ( ( ! [SY387: $i] :
              ~ ( ~ ( ~ ( in @ SY387 @ SV116 )
                    | ~ ( ~ ( in @ SY387 @ SV90 )
                        | ~ ~ ( in @ SY387 @ SV107 ) ) )
                | ~ ( ~ ~ ( ~ ( in @ SY387 @ SV90 )
                          | ~ ~ ( in @ SY387 @ SV107 ) )
                    | ( in @ SY387 @ SV116 ) ) ) )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1204]) ).

thf(1236,plain,
    ! [SV108: $i,SV91: $i,SV126: $i] :
      ( ( ( ~ ( in @ SV126 @ SV91 )
          | ( in @ SV126 @ SV108 ) )
        = $true )
      | ( ( subset @ SV91 @ SV108 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1205]) ).

thf(1237,plain,
    ! [SV91: $i,SV108: $i] :
      ( ( ( ~ ( in @ ( sK38_SY365 @ SV108 @ SV91 ) @ SV91 )
          | ( in @ ( sK38_SY365 @ SV108 @ SV91 ) @ SV108 ) )
        = $false )
      | ( ( subset @ SV91 @ SV108 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1206]) ).

thf(1238,plain,
    ! [SV122: $i,SV117: $i,SV109: $i,SV92: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV92 @ SV117 )
              | ~ ( in @ SV109 @ SV122 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1207]) ).

thf(1239,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV92 @ SV117 )
                | ~ ( in @ SV109 @ SV122 ) ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1208]) ).

thf(1240,plain,
    ! [SV74: $i,SV94: $i,SV124: $i] :
      ( ( ( ~ ( ~ ( in @ SV124 @ SV94 )
              | ( SV124 = SV74 ) )
          | ~ ( ( SV124 != SV74 )
              | ( in @ SV124 @ SV94 ) ) )
        = $false )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1209]) ).

thf(1241,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
              | ( ( sK36_SY327 @ SV74 @ SV94 )
                = SV74 ) )
          | ~ ( ( ( sK36_SY327 @ SV74 @ SV94 )
               != SV74 )
              | ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1210]) ).

thf(1242,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
              | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) ) )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1211]) ).

thf(1243,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
        = $false )
      | ( ( ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
              | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) ) )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1211]) ).

thf(1244,plain,
    ! [SV96: $i,SV76: $i,SV110: $i,SV127: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV127 @ SV110 )
                  | ~ ( ~ ( in @ SV127 @ SV76 )
                      | ~ ( in @ SV127 @ SV96 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV127 @ SV76 )
                        | ~ ( in @ SV127 @ SV96 ) )
                  | ( in @ SV127 @ SV110 ) ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1212]) ).

thf(1245,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
                  | ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                      | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                        | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
                  | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) ) )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1213]) ).

thf(1246,plain,
    ! [SV99: $i,SV80: $i,SV111: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV128 @ SV111 )
                  | ( in @ SV128 @ SV80 )
                  | ( in @ SV128 @ SV99 ) )
              | ~ ( ~ ( ( in @ SV128 @ SV80 )
                      | ( in @ SV128 @ SV99 ) )
                  | ( in @ SV128 @ SV111 ) ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1216]) ).

thf(1247,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
              | ~ ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                      | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) ) ) )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1217]) ).

thf(1248,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( ! [SY389: $i] :
              ~ ( ~ ( ~ ( in @ SY389 @ SV118 )
                    | ~ ! [SY271: $i] :
                          ~ ( in @ ( ordered_pair @ SY271 @ SY389 ) @ SV81 ) )
                | ~ ( ~ ~ ! [SY272: $i] :
                            ~ ( in @ ( ordered_pair @ SY272 @ SY389 ) @ SV81 )
                    | ( in @ SY389 @ SV118 ) ) ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1218]) ).

thf(1249,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( ! [SY392: $i] :
              ~ ( ~ ( ~ ( in @ SY392 @ SV118 )
                    | ~ ! [SY274: $i] :
                          ~ ( in @ ( ordered_pair @ SY274 @ SY392 ) @ SV81 ) )
                | ~ ( ~ ~ ! [SY275: $i] :
                            ~ ( in @ ( ordered_pair @ SY275 @ SY392 ) @ SV81 )
                    | ( in @ SY392 @ SV118 ) ) ) )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1219]) ).

thf(1250,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( ! [SY395: $i] :
              ~ ( ~ ( ~ ( in @ SY395 @ SV119 )
                    | ~ ! [SY279: $i] :
                          ~ ( in @ ( ordered_pair @ SY395 @ SY279 ) @ SV83 ) )
                | ~ ( ~ ~ ! [SY280: $i] :
                            ~ ( in @ ( ordered_pair @ SY395 @ SY280 ) @ SV83 )
                    | ( in @ SY395 @ SV119 ) ) ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1220]) ).

thf(1251,plain,
    ! [SV83: $i,SV119: $i] :
      ( ( ( ! [SY398: $i] :
              ~ ( ~ ( ~ ( in @ SY398 @ SV119 )
                    | ~ ! [SY282: $i] :
                          ~ ( in @ ( ordered_pair @ SY398 @ SY282 ) @ SV83 ) )
                | ~ ( ~ ~ ! [SY283: $i] :
                            ~ ( in @ ( ordered_pair @ SY398 @ SY283 ) @ SV83 )
                    | ( in @ SY398 @ SV119 ) ) ) )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1221]) ).

thf(1252,plain,
    ! [SV120: $i,SV101: $i,SV112: $i,SV84: $i] :
      ( ( ( SV84 = SV112 )
        = $true )
      | ( ( ( ordered_pair @ SV84 @ SV101 )
          = ( ordered_pair @ SV112 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1222]) ).

thf(1253,plain,
    ! [SV112: $i,SV84: $i,SV120: $i,SV101: $i] :
      ( ( ( SV101 = SV120 )
        = $true )
      | ( ( ( ordered_pair @ SV84 @ SV101 )
          = ( ordered_pair @ SV112 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1223]) ).

thf(1254,plain,
    ! [SV121: $i,SV113: $i,SV102: $i,SV85: $i] :
      ( ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ SV85 @ SV113 )
              | ~ ( in @ SV102 @ SV121 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1224]) ).

thf(1255,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ( ~ ( ~ ( in @ SV85 @ SV113 )
              | ~ ( in @ SV102 @ SV121 ) ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1225]) ).

thf(1256,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $false )
      | ( ( ~ ! [SY339: $i] :
                ~ ~ ( ~ ( in @ SY339 @ SV86 )
                    | ~ ( in @ SY339 @ SV103 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1226]) ).

thf(1257,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ( ~ ! [SY340: $i] :
                ~ ~ ( ~ ( in @ SY340 @ SV86 )
                    | ~ ( in @ SY340 @ SV103 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1227]) ).

thf(1258,plain,
    ! [SV104: $i,SV87: $i,SV114: $i,SV129: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV129 @ SV114 )
                  | ~ ! [SY405: $i] :
                        ~ ~ ! [SY406: $i] :
                              ~ ~ ( ~ ~ ( ~ ( in @ SY405 @ SV87 )
                                        | ~ ( in @ SY406 @ SV104 ) )
                                  | ( SV129
                                   != ( ordered_pair @ SY405 @ SY406 ) ) ) )
              | ~ ( ~ ~ ! [SY407: $i] :
                          ~ ~ ! [SY408: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY407 @ SV87 )
                                          | ~ ( in @ SY408 @ SV104 ) )
                                    | ( SV129
                                     != ( ordered_pair @ SY407 @ SY408 ) ) )
                  | ( in @ SV129 @ SV114 ) ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1228]) ).

thf(1259,plain,
    ! [SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
                  | ~ ! [SY409: $i] :
                        ~ ~ ! [SY410: $i] :
                              ~ ~ ( ~ ~ ( ~ ( in @ SY409 @ SV87 )
                                        | ~ ( in @ SY410 @ SV104 ) )
                                  | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                   != ( ordered_pair @ SY409 @ SY410 ) ) ) )
              | ~ ( ~ ~ ! [SY411: $i] :
                          ~ ~ ! [SY412: $i] :
                                ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                          | ~ ( in @ SY412 @ SV104 ) )
                                    | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                     != ( ordered_pair @ SY411 @ SY412 ) ) )
                  | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1229]) ).

thf(1260,plain,
    ! [SV105: $i,SV88: $i,SV115: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV130 @ SV115 )
                  | ( SV130 = SV88 )
                  | ( SV130 = SV105 ) )
              | ~ ( ~ ( ( SV130 = SV88 )
                      | ( SV130 = SV105 ) )
                  | ( in @ SV130 @ SV115 ) ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1230]) ).

thf(1261,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV88 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV105 ) )
              | ~ ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                        = SV88 )
                      | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                        = SV105 ) )
                  | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) ) ) )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1231]) ).

thf(1262,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( ~ ( ~ ( in @ SV125 @ SV106 )
              | ~ ! [SY401: $i] :
                    ~ ~ ( ~ ( in @ SV125 @ SY401 )
                        | ~ ( in @ SY401 @ SV89 ) ) )
          | ~ ( ~ ~ ! [SY402: $i] :
                      ~ ~ ( ~ ( in @ SV125 @ SY402 )
                          | ~ ( in @ SY402 @ SV89 ) )
              | ( in @ SV125 @ SV106 ) ) )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1232]) ).

thf(1263,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
              | ~ ! [SY403: $i] :
                    ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY403 )
                        | ~ ( in @ SY403 @ SV89 ) ) )
          | ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1233]) ).

thf(1264,plain,
    ! [SV107: $i,SV90: $i,SV116: $i,SV131: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV131 @ SV116 )
                  | ~ ( ~ ( in @ SV131 @ SV90 )
                      | ~ ~ ( in @ SV131 @ SV107 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ SV131 @ SV90 )
                        | ~ ~ ( in @ SV131 @ SV107 ) )
                  | ( in @ SV131 @ SV116 ) ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1234]) ).

thf(1265,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
                  | ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                      | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) ) )
              | ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                        | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
                  | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) ) )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1235]) ).

thf(1266,plain,
    ! [SV108: $i,SV91: $i,SV126: $i] :
      ( ( ( ~ ( in @ SV126 @ SV91 ) )
        = $true )
      | ( ( in @ SV126 @ SV108 )
        = $true )
      | ( ( subset @ SV91 @ SV108 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1236]) ).

thf(1267,plain,
    ! [SV91: $i,SV108: $i] :
      ( ( ( ~ ( in @ ( sK38_SY365 @ SV108 @ SV91 ) @ SV91 ) )
        = $false )
      | ( ( subset @ SV91 @ SV108 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1237]) ).

thf(1268,plain,
    ! [SV91: $i,SV108: $i] :
      ( ( ( in @ ( sK38_SY365 @ SV108 @ SV91 ) @ SV108 )
        = $false )
      | ( ( subset @ SV91 @ SV108 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1237]) ).

thf(1269,plain,
    ! [SV122: $i,SV117: $i,SV109: $i,SV92: $i] :
      ( ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $false )
      | ( ( ~ ( ~ ( in @ SV92 @ SV117 )
              | ~ ( in @ SV109 @ SV122 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1238]) ).

thf(1270,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ( ~ ( ~ ( in @ SV92 @ SV117 )
              | ~ ( in @ SV109 @ SV122 ) ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1239]) ).

thf(1271,plain,
    ! [SV74: $i,SV94: $i,SV124: $i] :
      ( ( ( ~ ( ~ ( in @ SV124 @ SV94 )
              | ( SV124 = SV74 ) ) )
        = $false )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1240]) ).

thf(1272,plain,
    ! [SV94: $i,SV74: $i,SV124: $i] :
      ( ( ( ~ ( ( SV124 != SV74 )
              | ( in @ SV124 @ SV94 ) ) )
        = $false )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1240]) ).

thf(1273,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
              | ( ( sK36_SY327 @ SV74 @ SV94 )
                = SV74 ) ) )
        = $true )
      | ( ( ~ ( ( ( sK36_SY327 @ SV74 @ SV94 )
               != SV74 )
              | ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1241]) ).

thf(1274,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
              | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) ) )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1242]) ).

thf(1275,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
          | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) )
        = $false )
      | ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
        = $false )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1243]) ).

thf(1276,plain,
    ! [SV96: $i,SV76: $i,SV110: $i,SV127: $i] :
      ( ( ( ~ ( ~ ( in @ SV127 @ SV110 )
              | ~ ( ~ ( in @ SV127 @ SV76 )
                  | ~ ( in @ SV127 @ SV96 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV127 @ SV76 )
                    | ~ ( in @ SV127 @ SV96 ) )
              | ( in @ SV127 @ SV110 ) ) )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1244]) ).

thf(1277,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
              | ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                  | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1245]) ).

thf(1278,plain,
    ! [SV99: $i,SV80: $i,SV111: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( in @ SV128 @ SV111 )
              | ( in @ SV128 @ SV80 )
              | ( in @ SV128 @ SV99 ) )
          | ~ ( ~ ( ( in @ SV128 @ SV80 )
                  | ( in @ SV128 @ SV99 ) )
              | ( in @ SV128 @ SV111 ) ) )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1246]) ).

thf(1279,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
          | ~ ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1247]) ).

thf(1280,plain,
    ! [SV81: $i,SV118: $i,SV132: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV132 @ SV118 )
                  | ~ ! [SY413: $i] :
                        ~ ( in @ ( ordered_pair @ SY413 @ SV132 ) @ SV81 ) )
              | ~ ( ~ ~ ! [SY414: $i] :
                          ~ ( in @ ( ordered_pair @ SY414 @ SV132 ) @ SV81 )
                  | ( in @ SV132 @ SV118 ) ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1248]) ).

thf(1281,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
                  | ~ ! [SY415: $i] :
                        ~ ( in @ ( ordered_pair @ SY415 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
              | ~ ( ~ ~ ! [SY416: $i] :
                          ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
                  | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) ) )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1249]) ).

thf(1282,plain,
    ! [SV83: $i,SV119: $i,SV133: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ SV133 @ SV119 )
                  | ~ ! [SY417: $i] :
                        ~ ( in @ ( ordered_pair @ SV133 @ SY417 ) @ SV83 ) )
              | ~ ( ~ ~ ! [SY418: $i] :
                          ~ ( in @ ( ordered_pair @ SV133 @ SY418 ) @ SV83 )
                  | ( in @ SV133 @ SV119 ) ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1250]) ).

thf(1283,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
                  | ~ ! [SY419: $i] :
                        ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY419 ) @ SV83 ) )
              | ~ ( ~ ~ ! [SY420: $i] :
                          ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
                  | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) ) )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1251]) ).

thf(1284,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ( ~ ( in @ SV85 @ SV113 )
          | ~ ( in @ SV102 @ SV121 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1254]) ).

thf(1285,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ( ~ ( in @ SV85 @ SV113 )
          | ~ ( in @ SV102 @ SV121 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1255]) ).

thf(1286,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ( disjoint @ SV86 @ SV103 )
        = $true )
      | ( ( ~ ! [SY339: $i] :
                ~ ~ ( ~ ( in @ SY339 @ SV86 )
                    | ~ ( in @ SY339 @ SV103 ) ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1256]) ).

thf(1287,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ( ! [SY340: $i] :
              ~ ~ ( ~ ( in @ SY340 @ SV86 )
                  | ~ ( in @ SY340 @ SV103 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1257]) ).

thf(1288,plain,
    ! [SV104: $i,SV87: $i,SV114: $i,SV129: $i] :
      ( ( ( ~ ( ~ ( in @ SV129 @ SV114 )
              | ~ ! [SY405: $i] :
                    ~ ~ ! [SY406: $i] :
                          ~ ~ ( ~ ~ ( ~ ( in @ SY405 @ SV87 )
                                    | ~ ( in @ SY406 @ SV104 ) )
                              | ( SV129
                               != ( ordered_pair @ SY405 @ SY406 ) ) ) )
          | ~ ( ~ ~ ! [SY407: $i] :
                      ~ ~ ! [SY408: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY407 @ SV87 )
                                      | ~ ( in @ SY408 @ SV104 ) )
                                | ( SV129
                                 != ( ordered_pair @ SY407 @ SY408 ) ) )
              | ( in @ SV129 @ SV114 ) ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1258]) ).

thf(1289,plain,
    ! [SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
              | ~ ! [SY409: $i] :
                    ~ ~ ! [SY410: $i] :
                          ~ ~ ( ~ ~ ( ~ ( in @ SY409 @ SV87 )
                                    | ~ ( in @ SY410 @ SV104 ) )
                              | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                               != ( ordered_pair @ SY409 @ SY410 ) ) ) )
          | ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1259]) ).

thf(1290,plain,
    ! [SV105: $i,SV88: $i,SV115: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( in @ SV130 @ SV115 )
              | ( SV130 = SV88 )
              | ( SV130 = SV105 ) )
          | ~ ( ~ ( ( SV130 = SV88 )
                  | ( SV130 = SV105 ) )
              | ( in @ SV130 @ SV115 ) ) )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1260]) ).

thf(1291,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV88 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV105 ) )
          | ~ ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV88 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV105 ) )
              | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1261]) ).

thf(1292,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( ~ ( ~ ( in @ SV125 @ SV106 )
              | ~ ! [SY401: $i] :
                    ~ ~ ( ~ ( in @ SV125 @ SY401 )
                        | ~ ( in @ SY401 @ SV89 ) ) ) )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1262]) ).

thf(1293,plain,
    ! [SV106: $i,SV89: $i,SV125: $i] :
      ( ( ( ~ ( ~ ~ ! [SY402: $i] :
                      ~ ~ ( ~ ( in @ SV125 @ SY402 )
                          | ~ ( in @ SY402 @ SV89 ) )
              | ( in @ SV125 @ SV106 ) ) )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1262]) ).

thf(1294,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
              | ~ ! [SY403: $i] :
                    ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY403 )
                        | ~ ( in @ SY403 @ SV89 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1263]) ).

thf(1295,plain,
    ! [SV107: $i,SV90: $i,SV116: $i,SV131: $i] :
      ( ( ( ~ ( ~ ( in @ SV131 @ SV116 )
              | ~ ( ~ ( in @ SV131 @ SV90 )
                  | ~ ~ ( in @ SV131 @ SV107 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ SV131 @ SV90 )
                    | ~ ~ ( in @ SV131 @ SV107 ) )
              | ( in @ SV131 @ SV116 ) ) )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1264]) ).

thf(1296,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
              | ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                  | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) ) )
          | ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1265]) ).

thf(1297,plain,
    ! [SV108: $i,SV91: $i,SV126: $i] :
      ( ( ( in @ SV126 @ SV91 )
        = $false )
      | ( ( in @ SV126 @ SV108 )
        = $true )
      | ( ( subset @ SV91 @ SV108 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1266]) ).

thf(1298,plain,
    ! [SV91: $i,SV108: $i] :
      ( ( ( in @ ( sK38_SY365 @ SV108 @ SV91 ) @ SV91 )
        = $true )
      | ( ( subset @ SV91 @ SV108 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1267]) ).

thf(1299,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ( ~ ( in @ SV92 @ SV117 )
          | ~ ( in @ SV109 @ SV122 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1269]) ).

thf(1300,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ( ~ ( in @ SV92 @ SV117 )
          | ~ ( in @ SV109 @ SV122 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1270]) ).

thf(1301,plain,
    ! [SV74: $i,SV94: $i,SV124: $i] :
      ( ( ( ~ ( in @ SV124 @ SV94 )
          | ( SV124 = SV74 ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1271]) ).

thf(1302,plain,
    ! [SV94: $i,SV74: $i,SV124: $i] :
      ( ( ( ( SV124 != SV74 )
          | ( in @ SV124 @ SV94 ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1272]) ).

thf(1303,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ~ ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
          | ( ( sK36_SY327 @ SV74 @ SV94 )
            = SV74 ) )
        = $false )
      | ( ( ~ ( ( ( sK36_SY327 @ SV74 @ SV94 )
               != SV74 )
              | ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1273]) ).

thf(1304,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
          | ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 ) )
        = $false )
      | ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1274]) ).

thf(1305,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 ) )
        = $false )
      | ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
        = $false )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1275]) ).

thf(1306,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
        = $false )
      | ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
        = $false )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1275]) ).

thf(1307,plain,
    ! [SV96: $i,SV76: $i,SV110: $i,SV127: $i] :
      ( ( ( ~ ( ~ ( in @ SV127 @ SV110 )
              | ~ ( ~ ( in @ SV127 @ SV76 )
                  | ~ ( in @ SV127 @ SV96 ) ) ) )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1276]) ).

thf(1308,plain,
    ! [SV110: $i,SV96: $i,SV76: $i,SV127: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV127 @ SV76 )
                    | ~ ( in @ SV127 @ SV96 ) )
              | ( in @ SV127 @ SV110 ) ) )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1276]) ).

thf(1309,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
              | ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                  | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1277]) ).

thf(1310,plain,
    ! [SV99: $i,SV80: $i,SV111: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( in @ SV128 @ SV111 )
              | ( in @ SV128 @ SV80 )
              | ( in @ SV128 @ SV99 ) ) )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1278]) ).

thf(1311,plain,
    ! [SV111: $i,SV99: $i,SV80: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( ( in @ SV128 @ SV80 )
                  | ( in @ SV128 @ SV99 ) )
              | ( in @ SV128 @ SV111 ) ) )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1278]) ).

thf(1312,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1279]) ).

thf(1313,plain,
    ! [SV81: $i,SV118: $i,SV132: $i] :
      ( ( ( ~ ( ~ ( in @ SV132 @ SV118 )
              | ~ ! [SY413: $i] :
                    ~ ( in @ ( ordered_pair @ SY413 @ SV132 ) @ SV81 ) )
          | ~ ( ~ ~ ! [SY414: $i] :
                      ~ ( in @ ( ordered_pair @ SY414 @ SV132 ) @ SV81 )
              | ( in @ SV132 @ SV118 ) ) )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1280]) ).

thf(1314,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
              | ~ ! [SY415: $i] :
                    ~ ( in @ ( ordered_pair @ SY415 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
          | ~ ( ~ ~ ! [SY416: $i] :
                      ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
              | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1281]) ).

thf(1315,plain,
    ! [SV83: $i,SV119: $i,SV133: $i] :
      ( ( ( ~ ( ~ ( in @ SV133 @ SV119 )
              | ~ ! [SY417: $i] :
                    ~ ( in @ ( ordered_pair @ SV133 @ SY417 ) @ SV83 ) )
          | ~ ( ~ ~ ! [SY418: $i] :
                      ~ ( in @ ( ordered_pair @ SV133 @ SY418 ) @ SV83 )
              | ( in @ SV133 @ SV119 ) ) )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1282]) ).

thf(1316,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
              | ~ ! [SY419: $i] :
                    ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY419 ) @ SV83 ) )
          | ~ ( ~ ~ ! [SY420: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
              | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1283]) ).

thf(1317,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ( ~ ( in @ SV85 @ SV113 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1284]) ).

thf(1318,plain,
    ! [SV113: $i,SV85: $i,SV121: $i,SV102: $i] :
      ( ( ( ~ ( in @ SV102 @ SV121 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1284]) ).

thf(1319,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ( ~ ( in @ SV85 @ SV113 ) )
        = $true )
      | ( ( ~ ( in @ SV102 @ SV121 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1285]) ).

thf(1320,plain,
    ! [SV103: $i,SV86: $i] :
      ( ( ( ! [SY339: $i] :
              ~ ~ ( ~ ( in @ SY339 @ SV86 )
                  | ~ ( in @ SY339 @ SV103 ) ) )
        = $false )
      | ( ( disjoint @ SV86 @ SV103 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1286]) ).

thf(1321,plain,
    ! [SV103: $i,SV86: $i,SV134: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV134 @ SV86 )
                | ~ ( in @ SV134 @ SV103 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1287]) ).

thf(1322,plain,
    ! [SV104: $i,SV87: $i,SV114: $i,SV129: $i] :
      ( ( ( ~ ( ~ ( in @ SV129 @ SV114 )
              | ~ ! [SY405: $i] :
                    ~ ~ ! [SY406: $i] :
                          ~ ~ ( ~ ~ ( ~ ( in @ SY405 @ SV87 )
                                    | ~ ( in @ SY406 @ SV104 ) )
                              | ( SV129
                               != ( ordered_pair @ SY405 @ SY406 ) ) ) ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1288]) ).

thf(1323,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ( ~ ~ ! [SY407: $i] :
                      ~ ~ ! [SY408: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY407 @ SV87 )
                                      | ~ ( in @ SY408 @ SV104 ) )
                                | ( SV129
                                 != ( ordered_pair @ SY407 @ SY408 ) ) )
              | ( in @ SV129 @ SV114 ) ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1288]) ).

thf(1324,plain,
    ! [SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
              | ~ ! [SY409: $i] :
                    ~ ~ ! [SY410: $i] :
                          ~ ~ ( ~ ~ ( ~ ( in @ SY409 @ SV87 )
                                    | ~ ( in @ SY410 @ SV104 ) )
                              | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                               != ( ordered_pair @ SY409 @ SY410 ) ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1289]) ).

thf(1325,plain,
    ! [SV105: $i,SV88: $i,SV115: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( in @ SV130 @ SV115 )
              | ( SV130 = SV88 )
              | ( SV130 = SV105 ) ) )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1290]) ).

thf(1326,plain,
    ! [SV115: $i,SV105: $i,SV88: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( ( SV130 = SV88 )
                  | ( SV130 = SV105 ) )
              | ( in @ SV130 @ SV115 ) ) )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1290]) ).

thf(1327,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV88 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV105 ) ) )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV88 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV105 ) )
              | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1291]) ).

thf(1328,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( ~ ( in @ SV125 @ SV106 )
          | ~ ! [SY401: $i] :
                ~ ~ ( ~ ( in @ SV125 @ SY401 )
                    | ~ ( in @ SY401 @ SV89 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1292]) ).

thf(1329,plain,
    ! [SV106: $i,SV89: $i,SV125: $i] :
      ( ( ( ~ ~ ! [SY402: $i] :
                  ~ ~ ( ~ ( in @ SV125 @ SY402 )
                      | ~ ( in @ SY402 @ SV89 ) )
          | ( in @ SV125 @ SV106 ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1293]) ).

thf(1330,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
          | ~ ! [SY403: $i] :
                ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY403 )
                    | ~ ( in @ SY403 @ SV89 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1294]) ).

thf(1331,plain,
    ! [SV107: $i,SV90: $i,SV116: $i,SV131: $i] :
      ( ( ( ~ ( ~ ( in @ SV131 @ SV116 )
              | ~ ( ~ ( in @ SV131 @ SV90 )
                  | ~ ~ ( in @ SV131 @ SV107 ) ) ) )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1295]) ).

thf(1332,plain,
    ! [SV116: $i,SV107: $i,SV90: $i,SV131: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV131 @ SV90 )
                    | ~ ~ ( in @ SV131 @ SV107 ) )
              | ( in @ SV131 @ SV116 ) ) )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1295]) ).

thf(1333,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
              | ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                  | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1296]) ).

thf(1334,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ( ~ ( in @ SV92 @ SV117 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1299]) ).

thf(1335,plain,
    ! [SV117: $i,SV92: $i,SV122: $i,SV109: $i] :
      ( ( ( ~ ( in @ SV109 @ SV122 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1299]) ).

thf(1336,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ( ~ ( in @ SV92 @ SV117 ) )
        = $true )
      | ( ( ~ ( in @ SV109 @ SV122 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1300]) ).

thf(1337,plain,
    ! [SV74: $i,SV94: $i,SV124: $i] :
      ( ( ( ~ ( in @ SV124 @ SV94 ) )
        = $true )
      | ( ( SV124 = SV74 )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1301]) ).

thf(1338,plain,
    ! [SV94: $i,SV74: $i,SV124: $i] :
      ( ( ( SV124 != SV74 )
        = $true )
      | ( ( in @ SV124 @ SV94 )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1302]) ).

thf(1339,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ~ ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) )
        = $false )
      | ( ( ~ ( ( ( sK36_SY327 @ SV74 @ SV94 )
               != SV74 )
              | ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1303]) ).

thf(1340,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ( sK36_SY327 @ SV74 @ SV94 )
          = SV74 )
        = $false )
      | ( ( ~ ( ( ( sK36_SY327 @ SV74 @ SV94 )
               != SV74 )
              | ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1303]) ).

thf(1341,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( ~ ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 ) )
        = $false )
      | ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1304]) ).

thf(1342,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
        = $false )
      | ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1304]) ).

thf(1343,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
        = $true )
      | ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
        = $false )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1305]) ).

thf(1344,plain,
    ! [SV96: $i,SV76: $i,SV110: $i,SV127: $i] :
      ( ( ( ~ ( in @ SV127 @ SV110 )
          | ~ ( ~ ( in @ SV127 @ SV76 )
              | ~ ( in @ SV127 @ SV96 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1307]) ).

thf(1345,plain,
    ! [SV110: $i,SV96: $i,SV76: $i,SV127: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV127 @ SV76 )
                | ~ ( in @ SV127 @ SV96 ) )
          | ( in @ SV127 @ SV110 ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1308]) ).

thf(1346,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
          | ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
              | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1309]) ).

thf(1347,plain,
    ! [SV99: $i,SV80: $i,SV111: $i,SV128: $i] :
      ( ( ( ~ ( in @ SV128 @ SV111 )
          | ( in @ SV128 @ SV80 )
          | ( in @ SV128 @ SV99 ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1310]) ).

thf(1348,plain,
    ! [SV111: $i,SV99: $i,SV80: $i,SV128: $i] :
      ( ( ( ~ ( ( in @ SV128 @ SV80 )
              | ( in @ SV128 @ SV99 ) )
          | ( in @ SV128 @ SV111 ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1311]) ).

thf(1349,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
          | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
          | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1312]) ).

thf(1350,plain,
    ! [SV81: $i,SV118: $i,SV132: $i] :
      ( ( ( ~ ( ~ ( in @ SV132 @ SV118 )
              | ~ ! [SY413: $i] :
                    ~ ( in @ ( ordered_pair @ SY413 @ SV132 ) @ SV81 ) ) )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1313]) ).

thf(1351,plain,
    ! [SV118: $i,SV81: $i,SV132: $i] :
      ( ( ( ~ ( ~ ~ ! [SY414: $i] :
                      ~ ( in @ ( ordered_pair @ SY414 @ SV132 ) @ SV81 )
              | ( in @ SV132 @ SV118 ) ) )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1313]) ).

thf(1352,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
              | ~ ! [SY415: $i] :
                    ~ ( in @ ( ordered_pair @ SY415 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY416: $i] :
                      ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
              | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1314]) ).

thf(1353,plain,
    ! [SV83: $i,SV119: $i,SV133: $i] :
      ( ( ( ~ ( ~ ( in @ SV133 @ SV119 )
              | ~ ! [SY417: $i] :
                    ~ ( in @ ( ordered_pair @ SV133 @ SY417 ) @ SV83 ) ) )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1315]) ).

thf(1354,plain,
    ! [SV119: $i,SV83: $i,SV133: $i] :
      ( ( ( ~ ( ~ ~ ! [SY418: $i] :
                      ~ ( in @ ( ordered_pair @ SV133 @ SY418 ) @ SV83 )
              | ( in @ SV133 @ SV119 ) ) )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1315]) ).

thf(1355,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
              | ~ ! [SY419: $i] :
                    ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY419 ) @ SV83 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY420: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
              | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1316]) ).

thf(1356,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ( in @ SV85 @ SV113 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1317]) ).

thf(1357,plain,
    ! [SV113: $i,SV85: $i,SV121: $i,SV102: $i] :
      ( ( ( in @ SV102 @ SV121 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1318]) ).

thf(1358,plain,
    ! [SV121: $i,SV102: $i,SV113: $i,SV85: $i] :
      ( ( ( in @ SV85 @ SV113 )
        = $false )
      | ( ( ~ ( in @ SV102 @ SV121 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1319]) ).

thf(1359,plain,
    ! [SV86: $i,SV103: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV86 )
                | ~ ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV103 ) ) )
        = $false )
      | ( ( disjoint @ SV86 @ SV103 )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1320]) ).

thf(1360,plain,
    ! [SV103: $i,SV86: $i,SV134: $i] :
      ( ( ( ~ ( ~ ( in @ SV134 @ SV86 )
              | ~ ( in @ SV134 @ SV103 ) ) )
        = $false )
      | ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1321]) ).

thf(1361,plain,
    ! [SV104: $i,SV87: $i,SV114: $i,SV129: $i] :
      ( ( ( ~ ( in @ SV129 @ SV114 )
          | ~ ! [SY405: $i] :
                ~ ~ ! [SY406: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY405 @ SV87 )
                                | ~ ( in @ SY406 @ SV104 ) )
                          | ( SV129
                           != ( ordered_pair @ SY405 @ SY406 ) ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1322]) ).

thf(1362,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ~ ! [SY407: $i] :
                  ~ ~ ! [SY408: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY407 @ SV87 )
                                  | ~ ( in @ SY408 @ SV104 ) )
                            | ( SV129
                             != ( ordered_pair @ SY407 @ SY408 ) ) )
          | ( in @ SV129 @ SV114 ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1323]) ).

thf(1363,plain,
    ! [SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ~ ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
          | ~ ! [SY409: $i] :
                ~ ~ ! [SY410: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY409 @ SV87 )
                                | ~ ( in @ SY410 @ SV104 ) )
                          | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                           != ( ordered_pair @ SY409 @ SY410 ) ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1324]) ).

thf(1364,plain,
    ! [SV105: $i,SV88: $i,SV115: $i,SV130: $i] :
      ( ( ( ~ ( in @ SV130 @ SV115 )
          | ( SV130 = SV88 )
          | ( SV130 = SV105 ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1325]) ).

thf(1365,plain,
    ! [SV115: $i,SV105: $i,SV88: $i,SV130: $i] :
      ( ( ( ~ ( ( SV130 = SV88 )
              | ( SV130 = SV105 ) )
          | ( in @ SV130 @ SV115 ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1326]) ).

thf(1366,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
          | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV88 )
          | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV105 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV88 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV105 ) )
              | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1327]) ).

thf(1367,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( ~ ( in @ SV125 @ SV106 ) )
        = $true )
      | ( ( ~ ! [SY401: $i] :
                ~ ~ ( ~ ( in @ SV125 @ SY401 )
                    | ~ ( in @ SY401 @ SV89 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1328]) ).

thf(1368,plain,
    ! [SV106: $i,SV89: $i,SV125: $i] :
      ( ( ( ~ ~ ! [SY402: $i] :
                  ~ ~ ( ~ ( in @ SV125 @ SY402 )
                      | ~ ( in @ SY402 @ SV89 ) ) )
        = $true )
      | ( ( in @ SV125 @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1329]) ).

thf(1369,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1330]) ).

thf(1370,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ! [SY403: $i] :
                ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY403 )
                    | ~ ( in @ SY403 @ SV89 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1330]) ).

thf(1371,plain,
    ! [SV107: $i,SV90: $i,SV116: $i,SV131: $i] :
      ( ( ( ~ ( in @ SV131 @ SV116 )
          | ~ ( ~ ( in @ SV131 @ SV90 )
              | ~ ~ ( in @ SV131 @ SV107 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1331]) ).

thf(1372,plain,
    ! [SV116: $i,SV107: $i,SV90: $i,SV131: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV131 @ SV90 )
                | ~ ~ ( in @ SV131 @ SV107 ) )
          | ( in @ SV131 @ SV116 ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1332]) ).

thf(1373,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
          | ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
              | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1333]) ).

thf(1374,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ( in @ SV92 @ SV117 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1334]) ).

thf(1375,plain,
    ! [SV117: $i,SV92: $i,SV122: $i,SV109: $i] :
      ( ( ( in @ SV109 @ SV122 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1335]) ).

thf(1376,plain,
    ! [SV122: $i,SV109: $i,SV117: $i,SV92: $i] :
      ( ( ( in @ SV92 @ SV117 )
        = $false )
      | ( ( ~ ( in @ SV109 @ SV122 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1336]) ).

thf(1377,plain,
    ! [SV74: $i,SV94: $i,SV124: $i] :
      ( ( ( in @ SV124 @ SV94 )
        = $false )
      | ( ( SV124 = SV74 )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1337]) ).

thf(1378,plain,
    ! [SV94: $i,SV74: $i,SV124: $i] :
      ( ( ( SV124 = SV74 )
        = $false )
      | ( ( in @ SV124 @ SV94 )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1338]) ).

thf(1379,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
        = $true )
      | ( ( ~ ( ( ( sK36_SY327 @ SV74 @ SV94 )
               != SV74 )
              | ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) ) )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1339]) ).

thf(1380,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ( ( sK36_SY327 @ SV74 @ SV94 )
           != SV74 )
          | ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) )
        = $false )
      | ( ( ( sK36_SY327 @ SV74 @ SV94 )
          = SV74 )
        = $false )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1340]) ).

thf(1381,plain,
    ! [SV75: $i,SV95: $i] :
      ( ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV95 )
        = $true )
      | ( ( in @ ( sK34_SY328 @ SV95 @ SV75 ) @ SV75 )
        = $true )
      | ( ( SV75 = SV95 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1341]) ).

thf(1382,plain,
    ! [SV96: $i,SV76: $i,SV110: $i,SV127: $i] :
      ( ( ( ~ ( in @ SV127 @ SV110 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV127 @ SV76 )
              | ~ ( in @ SV127 @ SV96 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1344]) ).

thf(1383,plain,
    ! [SV110: $i,SV96: $i,SV76: $i,SV127: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV127 @ SV76 )
                | ~ ( in @ SV127 @ SV96 ) ) )
        = $true )
      | ( ( in @ SV127 @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1345]) ).

thf(1384,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1346]) ).

thf(1385,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
              | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1346]) ).

thf(1386,plain,
    ! [SV99: $i,SV80: $i,SV111: $i,SV128: $i] :
      ( ( ( ~ ( in @ SV128 @ SV111 ) )
        = $true )
      | ( ( ( in @ SV128 @ SV80 )
          | ( in @ SV128 @ SV99 ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1347]) ).

thf(1387,plain,
    ! [SV111: $i,SV99: $i,SV80: $i,SV128: $i] :
      ( ( ( ~ ( ( in @ SV128 @ SV80 )
              | ( in @ SV128 @ SV99 ) ) )
        = $true )
      | ( ( in @ SV128 @ SV111 )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1348]) ).

thf(1388,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1349]) ).

thf(1389,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
          | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1349]) ).

thf(1390,plain,
    ! [SV81: $i,SV118: $i,SV132: $i] :
      ( ( ( ~ ( in @ SV132 @ SV118 )
          | ~ ! [SY413: $i] :
                ~ ( in @ ( ordered_pair @ SY413 @ SV132 ) @ SV81 ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1350]) ).

thf(1391,plain,
    ! [SV118: $i,SV81: $i,SV132: $i] :
      ( ( ( ~ ~ ! [SY414: $i] :
                  ~ ( in @ ( ordered_pair @ SY414 @ SV132 ) @ SV81 )
          | ( in @ SV132 @ SV118 ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1351]) ).

thf(1392,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ~ ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
          | ~ ! [SY415: $i] :
                ~ ( in @ ( ordered_pair @ SY415 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY416: $i] :
                      ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
              | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1352]) ).

thf(1393,plain,
    ! [SV83: $i,SV119: $i,SV133: $i] :
      ( ( ( ~ ( in @ SV133 @ SV119 )
          | ~ ! [SY417: $i] :
                ~ ( in @ ( ordered_pair @ SV133 @ SY417 ) @ SV83 ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1353]) ).

thf(1394,plain,
    ! [SV119: $i,SV83: $i,SV133: $i] :
      ( ( ( ~ ~ ! [SY418: $i] :
                  ~ ( in @ ( ordered_pair @ SV133 @ SY418 ) @ SV83 )
          | ( in @ SV133 @ SV119 ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1354]) ).

thf(1395,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
          | ~ ! [SY419: $i] :
                ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY419 ) @ SV83 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY420: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
              | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1355]) ).

thf(1396,plain,
    ! [SV113: $i,SV85: $i,SV121: $i,SV102: $i] :
      ( ( ( in @ SV102 @ SV121 )
        = $false )
      | ( ( in @ SV85 @ SV113 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV85 @ SV102 ) @ ( cartesian_product2 @ SV113 @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1358]) ).

thf(1397,plain,
    ! [SV86: $i,SV103: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV86 )
              | ~ ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV103 ) ) )
        = $true )
      | ( ( disjoint @ SV86 @ SV103 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1359]) ).

thf(1398,plain,
    ! [SV103: $i,SV86: $i,SV134: $i] :
      ( ( ( ~ ( in @ SV134 @ SV86 )
          | ~ ( in @ SV134 @ SV103 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1360]) ).

thf(1399,plain,
    ! [SV104: $i,SV87: $i,SV114: $i,SV129: $i] :
      ( ( ( ~ ( in @ SV129 @ SV114 ) )
        = $true )
      | ( ( ~ ! [SY405: $i] :
                ~ ~ ! [SY406: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY405 @ SV87 )
                                | ~ ( in @ SY406 @ SV104 ) )
                          | ( SV129
                           != ( ordered_pair @ SY405 @ SY406 ) ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1361]) ).

thf(1400,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ~ ! [SY407: $i] :
                  ~ ~ ! [SY408: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY407 @ SV87 )
                                  | ~ ( in @ SY408 @ SV104 ) )
                            | ( SV129
                             != ( ordered_pair @ SY407 @ SY408 ) ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1362]) ).

thf(1401,plain,
    ! [SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ~ ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1363]) ).

thf(1402,plain,
    ! [SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ! [SY409: $i] :
                ~ ~ ! [SY410: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY409 @ SV87 )
                                | ~ ( in @ SY410 @ SV104 ) )
                          | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                           != ( ordered_pair @ SY409 @ SY410 ) ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1363]) ).

thf(1403,plain,
    ! [SV105: $i,SV88: $i,SV115: $i,SV130: $i] :
      ( ( ( ~ ( in @ SV130 @ SV115 ) )
        = $true )
      | ( ( ( SV130 = SV88 )
          | ( SV130 = SV105 ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1364]) ).

thf(1404,plain,
    ! [SV115: $i,SV105: $i,SV88: $i,SV130: $i] :
      ( ( ( ~ ( ( SV130 = SV88 )
              | ( SV130 = SV105 ) ) )
        = $true )
      | ( ( in @ SV130 @ SV115 )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1365]) ).

thf(1405,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV88 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV105 ) )
              | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1366]) ).

thf(1406,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV88 )
          | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV105 ) )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV88 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV105 ) )
              | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1366]) ).

thf(1407,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( in @ SV125 @ SV106 )
        = $false )
      | ( ( ~ ! [SY401: $i] :
                ~ ~ ( ~ ( in @ SV125 @ SY401 )
                    | ~ ( in @ SY401 @ SV89 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1367]) ).

thf(1408,plain,
    ! [SV106: $i,SV89: $i,SV125: $i] :
      ( ( ( ~ ! [SY402: $i] :
                ~ ~ ( ~ ( in @ SV125 @ SY402 )
                    | ~ ( in @ SY402 @ SV89 ) ) )
        = $false )
      | ( ( in @ SV125 @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1368]) ).

thf(1409,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1369]) ).

thf(1410,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ! [SY403: $i] :
              ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY403 )
                  | ~ ( in @ SY403 @ SV89 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1370]) ).

thf(1411,plain,
    ! [SV107: $i,SV90: $i,SV116: $i,SV131: $i] :
      ( ( ( ~ ( in @ SV131 @ SV116 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV131 @ SV90 )
              | ~ ~ ( in @ SV131 @ SV107 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1371]) ).

thf(1412,plain,
    ! [SV116: $i,SV107: $i,SV90: $i,SV131: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV131 @ SV90 )
                | ~ ~ ( in @ SV131 @ SV107 ) ) )
        = $true )
      | ( ( in @ SV131 @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1372]) ).

thf(1413,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1373]) ).

thf(1414,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
              | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1373]) ).

thf(1415,plain,
    ! [SV117: $i,SV92: $i,SV122: $i,SV109: $i] :
      ( ( ( in @ SV109 @ SV122 )
        = $false )
      | ( ( in @ SV92 @ SV117 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV92 @ SV109 ) @ ( cartesian_product2 @ SV117 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1376]) ).

thf(1416,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ( ( sK36_SY327 @ SV74 @ SV94 )
           != SV74 )
          | ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 ) )
        = $false )
      | ( ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1379]) ).

thf(1417,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ( sK36_SY327 @ SV74 @ SV94 )
         != SV74 )
        = $false )
      | ( ( ( sK36_SY327 @ SV74 @ SV94 )
          = SV74 )
        = $false )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1380]) ).

thf(1418,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
        = $false )
      | ( ( ( sK36_SY327 @ SV74 @ SV94 )
          = SV74 )
        = $false )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1380]) ).

thf(1419,plain,
    ! [SV96: $i,SV76: $i,SV110: $i,SV127: $i] :
      ( ( ( in @ SV127 @ SV110 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV127 @ SV76 )
              | ~ ( in @ SV127 @ SV96 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1382]) ).

thf(1420,plain,
    ! [SV110: $i,SV96: $i,SV76: $i,SV127: $i] :
      ( ( ( ~ ( ~ ( in @ SV127 @ SV76 )
              | ~ ( in @ SV127 @ SV96 ) ) )
        = $false )
      | ( ( in @ SV127 @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1383]) ).

thf(1421,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1384]) ).

thf(1422,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
          | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1385]) ).

thf(1423,plain,
    ! [SV99: $i,SV80: $i,SV111: $i,SV128: $i] :
      ( ( ( in @ SV128 @ SV111 )
        = $false )
      | ( ( ( in @ SV128 @ SV80 )
          | ( in @ SV128 @ SV99 ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1386]) ).

thf(1424,plain,
    ! [SV111: $i,SV99: $i,SV80: $i,SV128: $i] :
      ( ( ( ( in @ SV128 @ SV80 )
          | ( in @ SV128 @ SV99 ) )
        = $false )
      | ( ( in @ SV128 @ SV111 )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1387]) ).

thf(1425,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
        = $true )
      | ( ( ~ ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1388]) ).

thf(1426,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1389]) ).

thf(1427,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 )
        = $false )
      | ( ( ~ ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
                  | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) ) )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1389]) ).

thf(1428,plain,
    ! [SV81: $i,SV118: $i,SV132: $i] :
      ( ( ( ~ ( in @ SV132 @ SV118 ) )
        = $true )
      | ( ( ~ ! [SY413: $i] :
                ~ ( in @ ( ordered_pair @ SY413 @ SV132 ) @ SV81 ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1390]) ).

thf(1429,plain,
    ! [SV118: $i,SV81: $i,SV132: $i] :
      ( ( ( ~ ~ ! [SY414: $i] :
                  ~ ( in @ ( ordered_pair @ SY414 @ SV132 ) @ SV81 ) )
        = $true )
      | ( ( in @ SV132 @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1391]) ).

thf(1430,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ~ ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY416: $i] :
                      ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
              | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1392]) ).

thf(1431,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ~ ! [SY415: $i] :
                ~ ( in @ ( ordered_pair @ SY415 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY416: $i] :
                      ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
              | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1392]) ).

thf(1432,plain,
    ! [SV83: $i,SV119: $i,SV133: $i] :
      ( ( ( ~ ( in @ SV133 @ SV119 ) )
        = $true )
      | ( ( ~ ! [SY417: $i] :
                ~ ( in @ ( ordered_pair @ SV133 @ SY417 ) @ SV83 ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1393]) ).

thf(1433,plain,
    ! [SV119: $i,SV83: $i,SV133: $i] :
      ( ( ( ~ ~ ! [SY418: $i] :
                  ~ ( in @ ( ordered_pair @ SV133 @ SY418 ) @ SV83 ) )
        = $true )
      | ( ( in @ SV133 @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1394]) ).

thf(1434,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY420: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
              | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1395]) ).

thf(1435,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ! [SY419: $i] :
                ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY419 ) @ SV83 ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY420: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
              | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1395]) ).

thf(1436,plain,
    ! [SV86: $i,SV103: $i] :
      ( ( ( ~ ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV86 )
          | ~ ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV103 ) )
        = $false )
      | ( ( disjoint @ SV86 @ SV103 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1397]) ).

thf(1437,plain,
    ! [SV103: $i,SV86: $i,SV134: $i] :
      ( ( ( ~ ( in @ SV134 @ SV86 ) )
        = $true )
      | ( ( ~ ( in @ SV134 @ SV103 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1398]) ).

thf(1438,plain,
    ! [SV104: $i,SV87: $i,SV114: $i,SV129: $i] :
      ( ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( ~ ! [SY405: $i] :
                ~ ~ ! [SY406: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY405 @ SV87 )
                                | ~ ( in @ SY406 @ SV104 ) )
                          | ( SV129
                           != ( ordered_pair @ SY405 @ SY406 ) ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1399]) ).

thf(1439,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ! [SY407: $i] :
                ~ ~ ! [SY408: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY407 @ SV87 )
                                | ~ ( in @ SY408 @ SV104 ) )
                          | ( SV129
                           != ( ordered_pair @ SY407 @ SY408 ) ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1400]) ).

thf(1440,plain,
    ! [SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1401]) ).

thf(1441,plain,
    ! [SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ! [SY409: $i] :
              ~ ~ ! [SY410: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY409 @ SV87 )
                              | ~ ( in @ SY410 @ SV104 ) )
                        | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                         != ( ordered_pair @ SY409 @ SY410 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1402]) ).

thf(1442,plain,
    ! [SV105: $i,SV88: $i,SV115: $i,SV130: $i] :
      ( ( ( in @ SV130 @ SV115 )
        = $false )
      | ( ( ( SV130 = SV88 )
          | ( SV130 = SV105 ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1403]) ).

thf(1443,plain,
    ! [SV115: $i,SV105: $i,SV88: $i,SV130: $i] :
      ( ( ( ( SV130 = SV88 )
          | ( SV130 = SV105 ) )
        = $false )
      | ( ( in @ SV130 @ SV115 )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1404]) ).

thf(1444,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
        = $true )
      | ( ( ~ ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV88 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV105 ) )
              | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1405]) ).

thf(1445,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV88 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV88 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV105 ) )
              | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1406]) ).

thf(1446,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV105 )
        = $false )
      | ( ( ~ ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV88 )
                  | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                    = SV105 ) )
              | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) ) )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1406]) ).

thf(1447,plain,
    ! [SV106: $i,SV89: $i,SV125: $i] :
      ( ( ( ! [SY401: $i] :
              ~ ~ ( ~ ( in @ SV125 @ SY401 )
                  | ~ ( in @ SY401 @ SV89 ) ) )
        = $false )
      | ( ( in @ SV125 @ SV106 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1407]) ).

thf(1448,plain,
    ! [SV106: $i,SV89: $i,SV125: $i] :
      ( ( ( ! [SY402: $i] :
              ~ ~ ( ~ ( in @ SV125 @ SY402 )
                  | ~ ( in @ SY402 @ SV89 ) ) )
        = $true )
      | ( ( in @ SV125 @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1408]) ).

thf(1449,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ~ ! [SY404: $i] :
                  ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                      | ~ ( in @ SY404 @ SV89 ) )
          | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1409]) ).

thf(1450,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
                | ~ ( in @ SV135 @ SV89 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1410]) ).

thf(1451,plain,
    ! [SV107: $i,SV90: $i,SV116: $i,SV131: $i] :
      ( ( ( in @ SV131 @ SV116 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV131 @ SV90 )
              | ~ ~ ( in @ SV131 @ SV107 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1411]) ).

thf(1452,plain,
    ! [SV116: $i,SV107: $i,SV90: $i,SV131: $i] :
      ( ( ( ~ ( ~ ( in @ SV131 @ SV90 )
              | ~ ~ ( in @ SV131 @ SV107 ) ) )
        = $false )
      | ( ( in @ SV131 @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1412]) ).

thf(1453,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1413]) ).

thf(1454,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
          | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1414]) ).

thf(1455,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ( sK36_SY327 @ SV74 @ SV94 )
         != SV74 )
        = $false )
      | ( ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1416]) ).

thf(1456,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
        = $false )
      | ( ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1416]) ).

thf(1457,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ( sK36_SY327 @ SV74 @ SV94 )
          = SV74 )
        = $true )
      | ( ( ( sK36_SY327 @ SV74 @ SV94 )
          = SV74 )
        = $false )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1417]) ).

thf(1458,plain,
    ! [SV110: $i,SV96: $i,SV76: $i,SV127: $i] :
      ( ( ( ~ ( in @ SV127 @ SV76 )
          | ~ ( in @ SV127 @ SV96 ) )
        = $false )
      | ( ( in @ SV127 @ SV110 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1419]) ).

thf(1459,plain,
    ! [SV110: $i,SV96: $i,SV76: $i,SV127: $i] :
      ( ( ( ~ ( in @ SV127 @ SV76 )
          | ~ ( in @ SV127 @ SV96 ) )
        = $true )
      | ( ( in @ SV127 @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1420]) ).

thf(1460,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
          | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1421]) ).

thf(1461,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 ) )
        = $true )
      | ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1422]) ).

thf(1462,plain,
    ! [SV111: $i,SV99: $i,SV80: $i,SV128: $i] :
      ( ( ( in @ SV128 @ SV80 )
        = $true )
      | ( ( in @ SV128 @ SV99 )
        = $true )
      | ( ( in @ SV128 @ SV111 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1423]) ).

thf(1463,plain,
    ! [SV99: $i,SV111: $i,SV80: $i,SV128: $i] :
      ( ( ( in @ SV128 @ SV80 )
        = $false )
      | ( ( in @ SV128 @ SV111 )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1424]) ).

thf(1464,plain,
    ! [SV80: $i,SV111: $i,SV99: $i,SV128: $i] :
      ( ( ( in @ SV128 @ SV99 )
        = $false )
      | ( ( in @ SV128 @ SV111 )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1424]) ).

thf(1465,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
          | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) )
        = $false )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1425]) ).

thf(1466,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
          | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) )
        = $false )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1426]) ).

thf(1467,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
          | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 ) )
        = $false )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1427]) ).

thf(1468,plain,
    ! [SV81: $i,SV118: $i,SV132: $i] :
      ( ( ( in @ SV132 @ SV118 )
        = $false )
      | ( ( ~ ! [SY413: $i] :
                ~ ( in @ ( ordered_pair @ SY413 @ SV132 ) @ SV81 ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1428]) ).

thf(1469,plain,
    ! [SV118: $i,SV81: $i,SV132: $i] :
      ( ( ( ~ ! [SY414: $i] :
                ~ ( in @ ( ordered_pair @ SY414 @ SV132 ) @ SV81 ) )
        = $false )
      | ( ( in @ SV132 @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1429]) ).

thf(1470,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY416: $i] :
                      ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
              | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1430]) ).

thf(1471,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ! [SY415: $i] :
              ~ ( in @ ( ordered_pair @ SY415 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY416: $i] :
                      ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
              | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1431]) ).

thf(1472,plain,
    ! [SV83: $i,SV119: $i,SV133: $i] :
      ( ( ( in @ SV133 @ SV119 )
        = $false )
      | ( ( ~ ! [SY417: $i] :
                ~ ( in @ ( ordered_pair @ SV133 @ SY417 ) @ SV83 ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1432]) ).

thf(1473,plain,
    ! [SV119: $i,SV83: $i,SV133: $i] :
      ( ( ( ~ ! [SY418: $i] :
                ~ ( in @ ( ordered_pair @ SV133 @ SY418 ) @ SV83 ) )
        = $false )
      | ( ( in @ SV133 @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1433]) ).

thf(1474,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY420: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
              | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1434]) ).

thf(1475,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ! [SY419: $i] :
              ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY419 ) @ SV83 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY420: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
              | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1435]) ).

thf(1476,plain,
    ! [SV86: $i,SV103: $i] :
      ( ( ( ~ ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV86 ) )
        = $false )
      | ( ( disjoint @ SV86 @ SV103 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1436]) ).

thf(1477,plain,
    ! [SV86: $i,SV103: $i] :
      ( ( ( ~ ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV103 ) )
        = $false )
      | ( ( disjoint @ SV86 @ SV103 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1436]) ).

thf(1478,plain,
    ! [SV103: $i,SV86: $i,SV134: $i] :
      ( ( ( in @ SV134 @ SV86 )
        = $false )
      | ( ( ~ ( in @ SV134 @ SV103 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1437]) ).

thf(1479,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i] :
      ( ( ( ! [SY405: $i] :
              ~ ~ ! [SY406: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY405 @ SV87 )
                              | ~ ( in @ SY406 @ SV104 ) )
                        | ( SV129
                         != ( ordered_pair @ SY405 @ SY406 ) ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1438]) ).

thf(1480,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i] :
      ( ( ( ! [SY407: $i] :
              ~ ~ ! [SY408: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY407 @ SV87 )
                              | ~ ( in @ SY408 @ SV104 ) )
                        | ( SV129
                         != ( ordered_pair @ SY407 @ SY408 ) ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1439]) ).

thf(1481,plain,
    ! [SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ~ ! [SY411: $i] :
                  ~ ~ ! [SY412: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                  | ~ ( in @ SY412 @ SV104 ) )
                            | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                             != ( ordered_pair @ SY411 @ SY412 ) ) )
          | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1440]) ).

thf(1482,plain,
    ! [SV114: $i,SV104: $i,SV87: $i,SV136: $i] :
      ( ( ( ~ ~ ! [SY421: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ SV136 @ SV87 )
                            | ~ ( in @ SY421 @ SV104 ) )
                      | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                       != ( ordered_pair @ SV136 @ SY421 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1441]) ).

thf(1483,plain,
    ! [SV115: $i,SV105: $i,SV88: $i,SV130: $i] :
      ( ( ( SV130 = SV88 )
        = $true )
      | ( ( SV130 = SV105 )
        = $true )
      | ( ( in @ SV130 @ SV115 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1442]) ).

thf(1484,plain,
    ! [SV105: $i,SV115: $i,SV88: $i,SV130: $i] :
      ( ( ( SV130 = SV88 )
        = $false )
      | ( ( in @ SV130 @ SV115 )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1443]) ).

thf(1485,plain,
    ! [SV88: $i,SV115: $i,SV105: $i,SV130: $i] :
      ( ( ( SV130 = SV105 )
        = $false )
      | ( ( in @ SV130 @ SV115 )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1443]) ).

thf(1486,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV88 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV105 ) )
          | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) )
        = $false )
      | ( ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1444]) ).

thf(1487,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV88 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV105 ) )
          | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) )
        = $false )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV88 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1445]) ).

thf(1488,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV88 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV105 ) )
          | ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 ) )
        = $false )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV105 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1446]) ).

thf(1489,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV125 @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) )
                | ~ ( in @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) @ SV89 ) ) )
        = $false )
      | ( ( in @ SV125 @ SV106 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1447]) ).

thf(1490,plain,
    ! [SV106: $i,SV89: $i,SV137: $i,SV125: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV125 @ SV137 )
                | ~ ( in @ SV137 @ SV89 ) ) )
        = $true )
      | ( ( in @ SV125 @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1448]) ).

thf(1491,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ~ ! [SY404: $i] :
                  ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                      | ~ ( in @ SY404 @ SV89 ) ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1449]) ).

thf(1492,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1449]) ).

thf(1493,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
              | ~ ( in @ SV135 @ SV89 ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1450]) ).

thf(1494,plain,
    ! [SV116: $i,SV107: $i,SV90: $i,SV131: $i] :
      ( ( ( ~ ( in @ SV131 @ SV90 )
          | ~ ~ ( in @ SV131 @ SV107 ) )
        = $false )
      | ( ( in @ SV131 @ SV116 )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1451]) ).

thf(1495,plain,
    ! [SV116: $i,SV107: $i,SV90: $i,SV131: $i] :
      ( ( ( ~ ( in @ SV131 @ SV90 )
          | ~ ~ ( in @ SV131 @ SV107 ) )
        = $true )
      | ( ( in @ SV131 @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1452]) ).

thf(1496,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
          | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1453]) ).

thf(1497,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 ) )
        = $true )
      | ( ( ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1454]) ).

thf(1498,plain,
    ! [SV94: $i,SV74: $i] :
      ( ( ( ( sK36_SY327 @ SV74 @ SV94 )
          = SV74 )
        = $true )
      | ( ( in @ ( sK36_SY327 @ SV74 @ SV94 ) @ SV94 )
        = $true )
      | ( ( SV94
          = ( singleton @ SV74 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1455]) ).

thf(1499,plain,
    ! [SV96: $i,SV110: $i,SV76: $i,SV127: $i] :
      ( ( ( ~ ( in @ SV127 @ SV76 ) )
        = $false )
      | ( ( in @ SV127 @ SV110 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1458]) ).

thf(1500,plain,
    ! [SV76: $i,SV110: $i,SV96: $i,SV127: $i] :
      ( ( ( ~ ( in @ SV127 @ SV96 ) )
        = $false )
      | ( ( in @ SV127 @ SV110 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1458]) ).

thf(1501,plain,
    ! [SV110: $i,SV96: $i,SV76: $i,SV127: $i] :
      ( ( ( ~ ( in @ SV127 @ SV76 ) )
        = $true )
      | ( ( ~ ( in @ SV127 @ SV96 ) )
        = $true )
      | ( ( in @ SV127 @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1459]) ).

thf(1502,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1460]) ).

thf(1503,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1460]) ).

thf(1504,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1461]) ).

thf(1505,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) ) )
        = $false )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1465]) ).

thf(1506,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
        = $false )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1465]) ).

thf(1507,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) ) )
        = $false )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1466]) ).

thf(1508,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
        = $false )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1466]) ).

thf(1509,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ~ ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
              | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) ) )
        = $false )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1467]) ).

thf(1510,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
        = $false )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1467]) ).

thf(1511,plain,
    ! [SV118: $i,SV81: $i,SV132: $i] :
      ( ( ( ! [SY413: $i] :
              ~ ( in @ ( ordered_pair @ SY413 @ SV132 ) @ SV81 ) )
        = $false )
      | ( ( in @ SV132 @ SV118 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1468]) ).

thf(1512,plain,
    ! [SV118: $i,SV81: $i,SV132: $i] :
      ( ( ( ! [SY414: $i] :
              ~ ( in @ ( ordered_pair @ SY414 @ SV132 ) @ SV81 ) )
        = $true )
      | ( ( in @ SV132 @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1469]) ).

thf(1513,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ~ ~ ! [SY416: $i] :
                  ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
          | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) )
        = $false )
      | ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1470]) ).

thf(1514,plain,
    ! [SV118: $i,SV81: $i,SV138: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV138 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY416: $i] :
                      ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
              | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1471]) ).

thf(1515,plain,
    ! [SV119: $i,SV83: $i,SV133: $i] :
      ( ( ( ! [SY417: $i] :
              ~ ( in @ ( ordered_pair @ SV133 @ SY417 ) @ SV83 ) )
        = $false )
      | ( ( in @ SV133 @ SV119 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1472]) ).

thf(1516,plain,
    ! [SV119: $i,SV83: $i,SV133: $i] :
      ( ( ( ! [SY418: $i] :
              ~ ( in @ ( ordered_pair @ SV133 @ SY418 ) @ SV83 ) )
        = $true )
      | ( ( in @ SV133 @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1473]) ).

thf(1517,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ~ ! [SY420: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
          | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) )
        = $false )
      | ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1474]) ).

thf(1518,plain,
    ! [SV139: $i,SV119: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV139 ) @ SV83 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY420: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
              | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1475]) ).

thf(1519,plain,
    ! [SV86: $i,SV103: $i] :
      ( ( ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV86 )
        = $true )
      | ( ( disjoint @ SV86 @ SV103 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1476]) ).

thf(1520,plain,
    ! [SV86: $i,SV103: $i] :
      ( ( ( in @ ( sK46_SY339 @ SV103 @ SV86 ) @ SV103 )
        = $true )
      | ( ( disjoint @ SV86 @ SV103 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1477]) ).

thf(1521,plain,
    ! [SV86: $i,SV103: $i,SV134: $i] :
      ( ( ( in @ SV134 @ SV103 )
        = $false )
      | ( ( in @ SV134 @ SV86 )
        = $false )
      | ( ( ~ ( disjoint @ SV86 @ SV103 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1478]) ).

thf(1522,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ~ ~ ! [SY422: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
                            | ~ ( in @ SY422 @ SV104 ) )
                      | ( SV129
                       != ( ordered_pair @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SY422 ) ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1479]) ).

thf(1523,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i,SV140: $i] :
      ( ( ( ~ ~ ! [SY423: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ SV140 @ SV87 )
                            | ~ ( in @ SY423 @ SV104 ) )
                      | ( SV129
                       != ( ordered_pair @ SV140 @ SY423 ) ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1480]) ).

thf(1524,plain,
    ! [SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ~ ! [SY411: $i] :
                  ~ ~ ! [SY412: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                  | ~ ( in @ SY412 @ SV104 ) )
                            | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                             != ( ordered_pair @ SY411 @ SY412 ) ) ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1481]) ).

thf(1525,plain,
    ! [SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1481]) ).

thf(1526,plain,
    ! [SV114: $i,SV104: $i,SV87: $i,SV136: $i] :
      ( ( ( ~ ! [SY421: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ SV136 @ SV87 )
                          | ~ ( in @ SY421 @ SV104 ) )
                    | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                     != ( ordered_pair @ SV136 @ SY421 ) ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1482]) ).

thf(1527,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV88 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV105 ) ) )
        = $false )
      | ( ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1486]) ).

thf(1528,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
        = $false )
      | ( ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1486]) ).

thf(1529,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV88 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV105 ) ) )
        = $false )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV88 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1487]) ).

thf(1530,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
        = $false )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV88 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1487]) ).

thf(1531,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ~ ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV88 )
              | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
                = SV105 ) ) )
        = $false )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV105 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1488]) ).

thf(1532,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
        = $false )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV105 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1488]) ).

thf(1533,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( ~ ( ~ ( in @ SV125 @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) )
              | ~ ( in @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) @ SV89 ) ) )
        = $true )
      | ( ( in @ SV125 @ SV106 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1489]) ).

thf(1534,plain,
    ! [SV106: $i,SV89: $i,SV137: $i,SV125: $i] :
      ( ( ( ~ ( ~ ( in @ SV125 @ SV137 )
              | ~ ( in @ SV137 @ SV89 ) ) )
        = $false )
      | ( ( in @ SV125 @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1490]) ).

thf(1535,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ! [SY404: $i] :
                ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                    | ~ ( in @ SY404 @ SV89 ) ) )
        = $true )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1491]) ).

thf(1536,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
          | ~ ( in @ SV135 @ SV89 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1493]) ).

thf(1537,plain,
    ! [SV107: $i,SV116: $i,SV90: $i,SV131: $i] :
      ( ( ( ~ ( in @ SV131 @ SV90 ) )
        = $false )
      | ( ( in @ SV131 @ SV116 )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1494]) ).

thf(1538,plain,
    ! [SV90: $i,SV116: $i,SV107: $i,SV131: $i] :
      ( ( ( ~ ~ ( in @ SV131 @ SV107 ) )
        = $false )
      | ( ( in @ SV131 @ SV116 )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1494]) ).

thf(1539,plain,
    ! [SV116: $i,SV107: $i,SV90: $i,SV131: $i] :
      ( ( ( ~ ( in @ SV131 @ SV90 ) )
        = $true )
      | ( ( ~ ~ ( in @ SV131 @ SV107 ) )
        = $true )
      | ( ( in @ SV131 @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1495]) ).

thf(1540,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1496]) ).

thf(1541,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1496]) ).

thf(1542,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1497]) ).

thf(1543,plain,
    ! [SV96: $i,SV110: $i,SV76: $i,SV127: $i] :
      ( ( ( in @ SV127 @ SV76 )
        = $true )
      | ( ( in @ SV127 @ SV110 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1499]) ).

thf(1544,plain,
    ! [SV76: $i,SV110: $i,SV96: $i,SV127: $i] :
      ( ( ( in @ SV127 @ SV96 )
        = $true )
      | ( ( in @ SV127 @ SV110 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1500]) ).

thf(1545,plain,
    ! [SV110: $i,SV96: $i,SV76: $i,SV127: $i] :
      ( ( ( in @ SV127 @ SV76 )
        = $false )
      | ( ( ~ ( in @ SV127 @ SV96 ) )
        = $true )
      | ( ( in @ SV127 @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1501]) ).

thf(1546,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
              | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) ) )
        = $true )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1502]) ).

thf(1547,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                    | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
              | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) ) )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1504]) ).

thf(1548,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
          | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
        = $true )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1505]) ).

thf(1549,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
          | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
        = $true )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1507]) ).

thf(1550,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
          | ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 ) )
        = $true )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1509]) ).

thf(1551,plain,
    ! [SV132: $i,SV81: $i,SV118: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK49_SY413 @ SV118 @ SV81 @ SV132 ) @ SV132 ) @ SV81 ) )
        = $false )
      | ( ( in @ SV132 @ SV118 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1511]) ).

thf(1552,plain,
    ! [SV118: $i,SV81: $i,SV132: $i,SV141: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV141 @ SV132 ) @ SV81 ) )
        = $true )
      | ( ( in @ SV132 @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1512]) ).

thf(1553,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ~ ~ ! [SY416: $i] :
                  ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $false )
      | ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1513]) ).

thf(1554,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $false )
      | ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1513]) ).

thf(1555,plain,
    ! [SV118: $i,SV81: $i,SV138: $i] :
      ( ( ( in @ ( ordered_pair @ SV138 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY416: $i] :
                      ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
              | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) ) )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1514]) ).

thf(1556,plain,
    ! [SV83: $i,SV119: $i,SV133: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV133 @ ( sK50_SY417 @ SV119 @ SV83 @ SV133 ) ) @ SV83 ) )
        = $false )
      | ( ( in @ SV133 @ SV119 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1515]) ).

thf(1557,plain,
    ! [SV119: $i,SV83: $i,SV142: $i,SV133: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV133 @ SV142 ) @ SV83 ) )
        = $true )
      | ( ( in @ SV133 @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1516]) ).

thf(1558,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ~ ! [SY420: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 ) )
        = $false )
      | ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1517]) ).

thf(1559,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $false )
      | ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1517]) ).

thf(1560,plain,
    ! [SV139: $i,SV119: $i,SV83: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV139 ) @ SV83 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY420: $i] :
                      ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
              | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) ) )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1518]) ).

thf(1561,plain,
    ! [SV134: $i,SV103: $i,SV86: $i] :
      ( ( ( disjoint @ SV86 @ SV103 )
        = $false )
      | ( ( in @ SV134 @ SV86 )
        = $false )
      | ( ( in @ SV134 @ SV103 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1521]) ).

thf(1562,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ~ ! [SY422: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
                          | ~ ( in @ SY422 @ SV104 ) )
                    | ( SV129
                     != ( ordered_pair @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SY422 ) ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1522]) ).

thf(1563,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i,SV140: $i] :
      ( ( ( ~ ! [SY423: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ SV140 @ SV87 )
                          | ~ ( in @ SY423 @ SV104 ) )
                    | ( SV129
                     != ( ordered_pair @ SV140 @ SY423 ) ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1523]) ).

thf(1564,plain,
    ! [SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ! [SY411: $i] :
                ~ ~ ! [SY412: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                | ~ ( in @ SY412 @ SV104 ) )
                          | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                           != ( ordered_pair @ SY411 @ SY412 ) ) ) )
        = $true )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1524]) ).

thf(1565,plain,
    ! [SV114: $i,SV104: $i,SV87: $i,SV136: $i] :
      ( ( ( ! [SY421: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ SV136 @ SV87 )
                        | ~ ( in @ SY421 @ SV104 ) )
                  | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                   != ( ordered_pair @ SV136 @ SY421 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1526]) ).

thf(1566,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV88 )
          | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV105 ) )
        = $true )
      | ( ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1527]) ).

thf(1567,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV88 )
          | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV105 ) )
        = $true )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV88 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1529]) ).

thf(1568,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV88 )
          | ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
            = SV105 ) )
        = $true )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV105 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1531]) ).

thf(1569,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( ~ ( in @ SV125 @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) )
          | ~ ( in @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) @ SV89 ) )
        = $false )
      | ( ( in @ SV125 @ SV106 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1533]) ).

thf(1570,plain,
    ! [SV106: $i,SV89: $i,SV137: $i,SV125: $i] :
      ( ( ( ~ ( in @ SV125 @ SV137 )
          | ~ ( in @ SV137 @ SV89 ) )
        = $true )
      | ( ( in @ SV125 @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1534]) ).

thf(1571,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ! [SY404: $i] :
              ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                  | ~ ( in @ SY404 @ SV89 ) ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1535]) ).

thf(1572,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 ) )
        = $true )
      | ( ( ~ ( in @ SV135 @ SV89 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1536]) ).

thf(1573,plain,
    ! [SV107: $i,SV116: $i,SV90: $i,SV131: $i] :
      ( ( ( in @ SV131 @ SV90 )
        = $true )
      | ( ( in @ SV131 @ SV116 )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1537]) ).

thf(1574,plain,
    ! [SV90: $i,SV116: $i,SV107: $i,SV131: $i] :
      ( ( ( ~ ( in @ SV131 @ SV107 ) )
        = $true )
      | ( ( in @ SV131 @ SV116 )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1538]) ).

thf(1575,plain,
    ! [SV116: $i,SV107: $i,SV90: $i,SV131: $i] :
      ( ( ( in @ SV131 @ SV90 )
        = $false )
      | ( ( ~ ~ ( in @ SV131 @ SV107 ) )
        = $true )
      | ( ( in @ SV131 @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1539]) ).

thf(1576,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
              | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) ) )
        = $true )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1540]) ).

thf(1577,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1542]) ).

thf(1578,plain,
    ! [SV110: $i,SV76: $i,SV96: $i,SV127: $i] :
      ( ( ( in @ SV127 @ SV96 )
        = $false )
      | ( ( in @ SV127 @ SV76 )
        = $false )
      | ( ( in @ SV127 @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1545]) ).

thf(1579,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
          | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1546]) ).

thf(1580,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
          | ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1547]) ).

thf(1581,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
        = $true )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 )
        = $true )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV111 )
        = $true )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1548]) ).

thf(1582,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
        = $true )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 )
        = $true )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1549]) ).

thf(1583,plain,
    ! [SV111: $i,SV80: $i,SV99: $i] :
      ( ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV80 )
        = $true )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 )
        = $true )
      | ( ( in @ ( sK40_SY371 @ SV99 @ SV80 @ SV111 ) @ SV99 )
        = $false )
      | ( ( SV111
          = ( set_union2 @ SV80 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1550]) ).

thf(1584,plain,
    ! [SV132: $i,SV81: $i,SV118: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK49_SY413 @ SV118 @ SV81 @ SV132 ) @ SV132 ) @ SV81 )
        = $true )
      | ( ( in @ SV132 @ SV118 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1551]) ).

thf(1585,plain,
    ! [SV118: $i,SV81: $i,SV132: $i,SV141: $i] :
      ( ( ( in @ ( ordered_pair @ SV141 @ SV132 ) @ SV81 )
        = $false )
      | ( ( in @ SV132 @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $false )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1552]) ).

thf(1586,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ~ ! [SY416: $i] :
                ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $true )
      | ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1553]) ).

thf(1587,plain,
    ! [SV138: $i,SV118: $i,SV81: $i] :
      ( ( ( ~ ~ ! [SY416: $i] :
                  ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
          | ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV138 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1555]) ).

thf(1588,plain,
    ! [SV83: $i,SV119: $i,SV133: $i] :
      ( ( ( in @ ( ordered_pair @ SV133 @ ( sK50_SY417 @ SV119 @ SV83 @ SV133 ) ) @ SV83 )
        = $true )
      | ( ( in @ SV133 @ SV119 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1556]) ).

thf(1589,plain,
    ! [SV119: $i,SV83: $i,SV142: $i,SV133: $i] :
      ( ( ( in @ ( ordered_pair @ SV133 @ SV142 ) @ SV83 )
        = $false )
      | ( ( in @ SV133 @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $false )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1557]) ).

thf(1590,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ! [SY420: $i] :
                ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 ) )
        = $true )
      | ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1558]) ).

thf(1591,plain,
    ! [SV139: $i,SV119: $i,SV83: $i] :
      ( ( ( ~ ~ ! [SY420: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 )
          | ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV139 ) @ SV83 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1560]) ).

thf(1592,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ! [SY422: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
                        | ~ ( in @ SY422 @ SV104 ) )
                  | ( SV129
                   != ( ordered_pair @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SY422 ) ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1562]) ).

thf(1593,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i,SV140: $i] :
      ( ( ( ! [SY423: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ SV140 @ SV87 )
                        | ~ ( in @ SY423 @ SV104 ) )
                  | ( SV129
                   != ( ordered_pair @ SV140 @ SY423 ) ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1563]) ).

thf(1594,plain,
    ! [SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ! [SY411: $i] :
              ~ ~ ! [SY412: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                              | ~ ( in @ SY412 @ SV104 ) )
                        | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                         != ( ordered_pair @ SY411 @ SY412 ) ) ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1564]) ).

thf(1595,plain,
    ! [SV114: $i,SV104: $i,SV143: $i,SV87: $i,SV136: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ SV136 @ SV87 )
                      | ~ ( in @ SV143 @ SV104 ) )
                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                 != ( ordered_pair @ SV136 @ SV143 ) ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1565]) ).

thf(1596,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV88 )
        = $true )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV105 )
        = $true )
      | ( ( in @ ( sK42_SY385 @ SV105 @ SV88 @ SV115 ) @ SV115 )
        = $true )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1566]) ).

thf(1597,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV88 )
        = $true )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV105 )
        = $true )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV88 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1567]) ).

thf(1598,plain,
    ! [SV115: $i,SV88: $i,SV105: $i] :
      ( ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV88 )
        = $true )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV105 )
        = $true )
      | ( ( ( sK42_SY385 @ SV105 @ SV88 @ SV115 )
          = SV105 )
        = $false )
      | ( ( SV115
          = ( unordered_pair @ SV88 @ SV105 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1568]) ).

thf(1599,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( ~ ( in @ SV125 @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) ) )
        = $false )
      | ( ( in @ SV125 @ SV106 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1569]) ).

thf(1600,plain,
    ! [SV125: $i,SV89: $i,SV106: $i] :
      ( ( ( ~ ( in @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) @ SV89 ) )
        = $false )
      | ( ( in @ SV125 @ SV106 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1569]) ).

thf(1601,plain,
    ! [SV106: $i,SV89: $i,SV137: $i,SV125: $i] :
      ( ( ( ~ ( in @ SV125 @ SV137 ) )
        = $true )
      | ( ( ~ ( in @ SV137 @ SV89 ) )
        = $true )
      | ( ( in @ SV125 @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1570]) ).

thf(1602,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK51_SY404 @ SV106 @ SV89 ) )
                | ~ ( in @ ( sK51_SY404 @ SV106 @ SV89 ) @ SV89 ) ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1571]) ).

thf(1603,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( ~ ( in @ SV135 @ SV89 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1572]) ).

thf(1604,plain,
    ! [SV90: $i,SV116: $i,SV107: $i,SV131: $i] :
      ( ( ( in @ SV131 @ SV107 )
        = $false )
      | ( ( in @ SV131 @ SV116 )
        = $false )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1574]) ).

thf(1605,plain,
    ! [SV116: $i,SV90: $i,SV107: $i,SV131: $i] :
      ( ( ( ~ ( in @ SV131 @ SV107 ) )
        = $false )
      | ( ( in @ SV131 @ SV90 )
        = $false )
      | ( ( in @ SV131 @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1575]) ).

thf(1606,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
          | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1576]) ).

thf(1607,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                    | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
              | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) ) )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1577]) ).

thf(1608,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1579]) ).

thf(1609,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1579]) ).

thf(1610,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
                | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1580]) ).

thf(1611,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1580]) ).

thf(1612,plain,
    ! [SV118: $i,SV81: $i] :
      ( ( ( ! [SY416: $i] :
              ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $false )
      | ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1586]) ).

thf(1613,plain,
    ! [SV138: $i,SV118: $i,SV81: $i] :
      ( ( ( ~ ~ ! [SY416: $i] :
                  ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV138 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1587]) ).

thf(1614,plain,
    ! [SV138: $i,SV118: $i,SV81: $i] :
      ( ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV138 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1587]) ).

thf(1615,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ! [SY420: $i] :
              ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 ) )
        = $false )
      | ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1590]) ).

thf(1616,plain,
    ! [SV139: $i,SV119: $i,SV83: $i] :
      ( ( ( ~ ~ ! [SY420: $i] :
                  ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV139 ) @ SV83 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1591]) ).

thf(1617,plain,
    ! [SV139: $i,SV119: $i,SV83: $i] :
      ( ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV139 ) @ SV83 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1591]) ).

thf(1618,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
                      | ~ ( in @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) @ SV104 ) )
                | ( SV129
                 != ( ordered_pair @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) ) ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1592]) ).

thf(1619,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV144: $i,SV87: $i,SV140: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ SV140 @ SV87 )
                      | ~ ( in @ SV144 @ SV104 ) )
                | ( SV129
                 != ( ordered_pair @ SV140 @ SV144 ) ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1593]) ).

thf(1620,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ~ ~ ! [SY424: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                            | ~ ( in @ SY424 @ SV104 ) )
                      | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                       != ( ordered_pair @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SY424 ) ) ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1594]) ).

thf(1621,plain,
    ! [SV114: $i,SV104: $i,SV143: $i,SV87: $i,SV136: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV136 @ SV87 )
                    | ~ ( in @ SV143 @ SV104 ) )
              | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
               != ( ordered_pair @ SV136 @ SV143 ) ) ) )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1595]) ).

thf(1622,plain,
    ! [SV89: $i,SV106: $i,SV125: $i] :
      ( ( ( in @ SV125 @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) )
        = $true )
      | ( ( in @ SV125 @ SV106 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1599]) ).

thf(1623,plain,
    ! [SV125: $i,SV89: $i,SV106: $i] :
      ( ( ( in @ ( sK47_SY401 @ SV106 @ SV89 @ SV125 ) @ SV89 )
        = $true )
      | ( ( in @ SV125 @ SV106 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1600]) ).

thf(1624,plain,
    ! [SV106: $i,SV89: $i,SV137: $i,SV125: $i] :
      ( ( ( in @ SV125 @ SV137 )
        = $false )
      | ( ( ~ ( in @ SV137 @ SV89 ) )
        = $true )
      | ( ( in @ SV125 @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1601]) ).

thf(1625,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK51_SY404 @ SV106 @ SV89 ) )
              | ~ ( in @ ( sK51_SY404 @ SV106 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1602]) ).

thf(1626,plain,
    ! [SV106: $i,SV89: $i,SV135: $i] :
      ( ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY404: $i] :
                      ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                          | ~ ( in @ SY404 @ SV89 ) )
              | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) ) )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1603]) ).

thf(1627,plain,
    ! [SV116: $i,SV90: $i,SV107: $i,SV131: $i] :
      ( ( ( in @ SV131 @ SV107 )
        = $true )
      | ( ( in @ SV131 @ SV90 )
        = $false )
      | ( ( in @ SV131 @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1605]) ).

thf(1628,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1606]) ).

thf(1629,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1606]) ).

thf(1630,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
          | ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1607]) ).

thf(1631,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $true )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1608]) ).

thf(1632,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $true )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1609]) ).

thf(1633,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
              | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) ) )
        = $true )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1610]) ).

thf(1634,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK54_SY416 @ SV118 @ SV81 ) @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $false )
      | ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1612]) ).

thf(1635,plain,
    ! [SV138: $i,SV118: $i,SV81: $i] :
      ( ( ( ~ ! [SY416: $i] :
                ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV138 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1613]) ).

thf(1636,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ ( sK55_SY420 @ SV119 @ SV83 ) ) @ SV83 ) )
        = $false )
      | ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1615]) ).

thf(1637,plain,
    ! [SV139: $i,SV119: $i,SV83: $i] :
      ( ( ( ~ ! [SY420: $i] :
                ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV139 ) @ SV83 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1616]) ).

thf(1638,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
                    | ~ ( in @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) @ SV104 ) )
              | ( SV129
               != ( ordered_pair @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) ) ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1618]) ).

thf(1639,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV144: $i,SV87: $i,SV140: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ SV140 @ SV87 )
                    | ~ ( in @ SV144 @ SV104 ) )
              | ( SV129
               != ( ordered_pair @ SV140 @ SV144 ) ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1619]) ).

thf(1640,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ~ ! [SY424: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                          | ~ ( in @ SY424 @ SV104 ) )
                    | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                     != ( ordered_pair @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SY424 ) ) ) )
        = $true )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1620]) ).

thf(1641,plain,
    ! [SV114: $i,SV104: $i,SV143: $i,SV87: $i,SV136: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV136 @ SV87 )
                | ~ ( in @ SV143 @ SV104 ) )
          | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
           != ( ordered_pair @ SV136 @ SV143 ) ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1621]) ).

thf(1642,plain,
    ! [SV106: $i,SV125: $i,SV89: $i,SV137: $i] :
      ( ( ( in @ SV137 @ SV89 )
        = $false )
      | ( ( in @ SV125 @ SV137 )
        = $false )
      | ( ( in @ SV125 @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1624]) ).

thf(1643,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK51_SY404 @ SV106 @ SV89 ) )
          | ~ ( in @ ( sK51_SY404 @ SV106 @ SV89 ) @ SV89 ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1625]) ).

thf(1644,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ~ ! [SY404: $i] :
                  ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                      | ~ ( in @ SY404 @ SV89 ) )
          | ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1626]) ).

thf(1645,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $true )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1628]) ).

thf(1646,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $true )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1629]) ).

thf(1647,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
                | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1630]) ).

thf(1648,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1630]) ).

thf(1649,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
          | ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1633]) ).

thf(1650,plain,
    ! [SV81: $i,SV118: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK54_SY416 @ SV118 @ SV81 ) @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $true )
      | ( ( in @ ( sK44_SY392 @ SV81 @ SV118 ) @ SV118 )
        = $true )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1634]) ).

thf(1651,plain,
    ! [SV138: $i,SV118: $i,SV81: $i] :
      ( ( ( ! [SY416: $i] :
              ~ ( in @ ( ordered_pair @ SY416 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV138 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1635]) ).

thf(1652,plain,
    ! [SV119: $i,SV83: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ ( sK55_SY420 @ SV119 @ SV83 ) ) @ SV83 )
        = $true )
      | ( ( in @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV119 )
        = $true )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1636]) ).

thf(1653,plain,
    ! [SV139: $i,SV119: $i,SV83: $i] :
      ( ( ( ! [SY420: $i] :
              ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SY420 ) @ SV83 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV139 ) @ SV83 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1637]) ).

thf(1654,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
                | ~ ( in @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) @ SV104 ) )
          | ( SV129
           != ( ordered_pair @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1638]) ).

thf(1655,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV144: $i,SV87: $i,SV140: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV140 @ SV87 )
                | ~ ( in @ SV144 @ SV104 ) )
          | ( SV129
           != ( ordered_pair @ SV140 @ SV144 ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1639]) ).

thf(1656,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ! [SY424: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                        | ~ ( in @ SY424 @ SV104 ) )
                  | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                   != ( ordered_pair @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SY424 ) ) ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1640]) ).

thf(1657,plain,
    ! [SV114: $i,SV104: $i,SV143: $i,SV87: $i,SV136: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV136 @ SV87 )
                | ~ ( in @ SV143 @ SV104 ) ) )
        = $true )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
         != ( ordered_pair @ SV136 @ SV143 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1641]) ).

thf(1658,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK51_SY404 @ SV106 @ SV89 ) ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1643]) ).

thf(1659,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ( ~ ( in @ ( sK51_SY404 @ SV106 @ SV89 ) @ SV89 ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1643]) ).

thf(1660,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ~ ! [SY404: $i] :
                  ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                      | ~ ( in @ SY404 @ SV89 ) ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1644]) ).

thf(1661,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1644]) ).

thf(1662,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1646]) ).

thf(1663,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
              | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) ) )
        = $true )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1647]) ).

thf(1664,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1649]) ).

thf(1665,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( ~ ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 ) )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1649]) ).

thf(1666,plain,
    ! [SV81: $i,SV118: $i,SV138: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK56_SY416 @ SV138 @ SV118 @ SV81 ) @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ SV138 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1651]) ).

thf(1667,plain,
    ! [SV139: $i,SV119: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ ( sK57_SY420 @ SV139 @ SV119 @ SV83 ) ) @ SV83 ) )
        = $false )
      | ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV139 ) @ SV83 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[1653]) ).

thf(1668,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
                | ~ ( in @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) @ SV104 ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1654]) ).

thf(1669,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV129: $i] :
      ( ( ( SV129
         != ( ordered_pair @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1654]) ).

thf(1670,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV144: $i,SV87: $i,SV140: $i] :
      ( ( ( ~ ~ ( ~ ( in @ SV140 @ SV87 )
                | ~ ( in @ SV144 @ SV104 ) ) )
        = $true )
      | ( ( SV129
         != ( ordered_pair @ SV140 @ SV144 ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1655]) ).

thf(1671,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                      | ~ ( in @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) @ SV104 ) )
                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                 != ( ordered_pair @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) ) ) ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1656]) ).

thf(1672,plain,
    ! [SV114: $i,SV104: $i,SV143: $i,SV87: $i,SV136: $i] :
      ( ( ( ~ ( ~ ( in @ SV136 @ SV87 )
              | ~ ( in @ SV143 @ SV104 ) ) )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
         != ( ordered_pair @ SV136 @ SV143 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1657]) ).

thf(1673,plain,
    ! [SV106: $i,SV89: $i] :
      ( ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK51_SY404 @ SV106 @ SV89 ) )
        = $true )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1658]) ).

thf(1674,plain,
    ! [SV89: $i,SV106: $i] :
      ( ( ( in @ ( sK51_SY404 @ SV106 @ SV89 ) @ SV89 )
        = $true )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV106 )
        = $true )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1659]) ).

thf(1675,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ! [SY404: $i] :
                ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                    | ~ ( in @ SY404 @ SV89 ) ) )
        = $true )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1660]) ).

thf(1676,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
          | ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1663]) ).

thf(1677,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $true )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1664]) ).

thf(1678,plain,
    ! [SV110: $i,SV76: $i,SV96: $i] :
      ( ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $true )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV76 )
        = $false )
      | ( ( in @ ( sK39_SY369 @ SV96 @ SV76 @ SV110 ) @ SV96 )
        = $false )
      | ( ( SV110
          = ( set_intersection2 @ SV76 @ SV96 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1665]) ).

thf(1679,plain,
    ! [SV81: $i,SV118: $i,SV138: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK56_SY416 @ SV138 @ SV118 @ SV81 ) @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $true )
      | ( ( in @ ( ordered_pair @ SV138 @ ( sK44_SY392 @ SV81 @ SV118 ) ) @ SV81 )
        = $false )
      | ( ( SV118
          = ( relation_rng @ SV81 ) )
        = $true )
      | ( ( relation @ SV81 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1666]) ).

thf(1680,plain,
    ! [SV139: $i,SV119: $i,SV83: $i] :
      ( ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ ( sK57_SY420 @ SV139 @ SV119 @ SV83 ) ) @ SV83 )
        = $true )
      | ( ( in @ ( ordered_pair @ ( sK45_SY398 @ SV83 @ SV119 ) @ SV139 ) @ SV83 )
        = $false )
      | ( ( SV119
          = ( relation_dom @ SV83 ) )
        = $true )
      | ( ( relation @ SV83 )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1667]) ).

thf(1681,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
              | ~ ( in @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) @ SV104 ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1668]) ).

thf(1682,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV129: $i] :
      ( ( ( SV129
          = ( ordered_pair @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1669]) ).

thf(1683,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV144: $i,SV87: $i,SV140: $i] :
      ( ( ( ~ ( ~ ( in @ SV140 @ SV87 )
              | ~ ( in @ SV144 @ SV104 ) ) )
        = $false )
      | ( ( SV129
         != ( ordered_pair @ SV140 @ SV144 ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1670]) ).

thf(1684,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                    | ~ ( in @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) @ SV104 ) )
              | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
               != ( ordered_pair @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1671]) ).

thf(1685,plain,
    ! [SV114: $i,SV104: $i,SV143: $i,SV87: $i,SV136: $i] :
      ( ( ( ~ ( in @ SV136 @ SV87 )
          | ~ ( in @ SV143 @ SV104 ) )
        = $true )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
         != ( ordered_pair @ SV136 @ SV143 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1672]) ).

thf(1686,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ! [SY404: $i] :
              ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SY404 )
                  | ~ ( in @ SY404 @ SV89 ) ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1675]) ).

thf(1687,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1676]) ).

thf(1688,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1676]) ).

thf(1689,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
          | ~ ( in @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) @ SV104 ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1681]) ).

thf(1690,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV144: $i,SV87: $i,SV140: $i] :
      ( ( ( ~ ( in @ SV140 @ SV87 )
          | ~ ( in @ SV144 @ SV104 ) )
        = $true )
      | ( ( SV129
         != ( ordered_pair @ SV140 @ SV144 ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1683]) ).

thf(1691,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                | ~ ( in @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) @ SV104 ) )
          | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
           != ( ordered_pair @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) ) ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1684]) ).

thf(1692,plain,
    ! [SV114: $i,SV104: $i,SV143: $i,SV87: $i,SV136: $i] :
      ( ( ( ~ ( in @ SV136 @ SV87 ) )
        = $true )
      | ( ( ~ ( in @ SV143 @ SV104 ) )
        = $true )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
         != ( ordered_pair @ SV136 @ SV143 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1685]) ).

thf(1693,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) )
                | ~ ( in @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) @ SV89 ) ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1686]) ).

thf(1694,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $true )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1687]) ).

thf(1695,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( ~ ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 ) )
        = $true )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1688]) ).

thf(1696,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( ~ ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1689]) ).

thf(1697,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ( in @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) @ SV104 ) )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1689]) ).

thf(1698,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV144: $i,SV87: $i,SV140: $i] :
      ( ( ( ~ ( in @ SV140 @ SV87 ) )
        = $true )
      | ( ( ~ ( in @ SV144 @ SV104 ) )
        = $true )
      | ( ( SV129
         != ( ordered_pair @ SV140 @ SV144 ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1690]) ).

thf(1699,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                | ~ ( in @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) @ SV104 ) ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1691]) ).

thf(1700,plain,
    ! [SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
         != ( ordered_pair @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1691]) ).

thf(1701,plain,
    ! [SV114: $i,SV104: $i,SV143: $i,SV87: $i,SV136: $i] :
      ( ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ~ ( in @ SV143 @ SV104 ) )
        = $true )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
         != ( ordered_pair @ SV136 @ SV143 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1692]) ).

thf(1702,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) )
              | ~ ( in @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) @ SV89 ) ) )
        = $true )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1693]) ).

thf(1703,plain,
    ! [SV116: $i,SV90: $i,SV107: $i] :
      ( ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV90 )
        = $false )
      | ( ( in @ ( sK43_SY387 @ SV107 @ SV90 @ SV116 ) @ SV107 )
        = $true )
      | ( ( SV116
          = ( set_difference @ SV90 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1695]) ).

thf(1704,plain,
    ! [SV87: $i,SV104: $i,SV129: $i,SV114: $i] :
      ( ( ( in @ ( sK48_SY405 @ SV114 @ SV129 @ SV104 @ SV87 ) @ SV87 )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1696]) ).

thf(1705,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV87: $i] :
      ( ( ( in @ ( sK52_SY422 @ SV87 @ SV104 @ SV129 @ SV114 ) @ SV104 )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1697]) ).

thf(1706,plain,
    ! [SV114: $i,SV129: $i,SV104: $i,SV144: $i,SV87: $i,SV140: $i] :
      ( ( ( in @ SV140 @ SV87 )
        = $false )
      | ( ( ~ ( in @ SV144 @ SV104 ) )
        = $true )
      | ( ( SV129
         != ( ordered_pair @ SV140 @ SV144 ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1698]) ).

thf(1707,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
              | ~ ( in @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) @ SV104 ) ) )
        = $true )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1699]) ).

thf(1708,plain,
    ! [SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) ) )
        = $true )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1700]) ).

thf(1709,plain,
    ! [SV114: $i,SV87: $i,SV136: $i,SV104: $i,SV143: $i] :
      ( ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
         != ( ordered_pair @ SV136 @ SV143 ) )
        = $true )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1701]) ).

thf(1710,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) )
          | ~ ( in @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) @ SV89 ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1702]) ).

thf(1711,plain,
    ! [SV114: $i,SV129: $i,SV87: $i,SV140: $i,SV104: $i,SV144: $i] :
      ( ( ( in @ SV144 @ SV104 )
        = $false )
      | ( ( in @ SV140 @ SV87 )
        = $false )
      | ( ( SV129
         != ( ordered_pair @ SV140 @ SV144 ) )
        = $true )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1706]) ).

thf(1712,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
          | ~ ( in @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) @ SV104 ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1707]) ).

thf(1713,plain,
    ! [SV143: $i,SV136: $i,SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( ~ ( ~ ~ ! [SY411: $i] :
                      ~ ~ ! [SY412: $i] :
                            ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                      | ~ ( in @ SY412 @ SV104 ) )
                                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                                 != ( ordered_pair @ SY411 @ SY412 ) ) )
              | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1709]) ).

thf(1714,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( ~ ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1710]) ).

thf(1715,plain,
    ! [SV89: $i,SV106: $i,SV135: $i] :
      ( ( ( ~ ( in @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) @ SV89 ) )
        = $false )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1710]) ).

thf(1716,plain,
    ! [SV114: $i,SV104: $i,SV87: $i,SV144: $i,SV140: $i,SV129: $i] :
      ( ( ( SV129
          = ( ordered_pair @ SV140 @ SV144 ) )
        = $false )
      | ( ( in @ SV140 @ SV87 )
        = $false )
      | ( ( in @ SV144 @ SV104 )
        = $false )
      | ( ( in @ SV129 @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1711]) ).

thf(1717,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( ~ ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1712]) ).

thf(1718,plain,
    ! [SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ( in @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) @ SV104 ) )
        = $false )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1712]) ).

thf(1719,plain,
    ! [SV136: $i,SV143: $i,SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ~ ! [SY411: $i] :
                  ~ ~ ! [SY412: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                  | ~ ( in @ SY412 @ SV104 ) )
                            | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                             != ( ordered_pair @ SY411 @ SY412 ) ) )
          | ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1713]) ).

thf(1720,plain,
    ! [SV135: $i,SV106: $i,SV89: $i] :
      ( ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) )
        = $true )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1714]) ).

thf(1721,plain,
    ! [SV89: $i,SV106: $i,SV135: $i] :
      ( ( ( in @ ( sK59_SY404 @ SV135 @ SV106 @ SV89 ) @ SV89 )
        = $true )
      | ( ( in @ ( sK37_SY358 @ SV89 @ SV106 ) @ SV135 )
        = $false )
      | ( ( in @ SV135 @ SV89 )
        = $false )
      | ( ( SV106
          = ( union @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1715]) ).

thf(1722,plain,
    ! [SV87: $i,SV104: $i,SV114: $i] :
      ( ( ( in @ ( sK53_SY411 @ SV114 @ SV104 @ SV87 ) @ SV87 )
        = $true )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1717]) ).

thf(1723,plain,
    ! [SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( in @ ( sK58_SY424 @ SV87 @ SV104 @ SV114 ) @ SV104 )
        = $true )
      | ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $true )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1718]) ).

thf(1724,plain,
    ! [SV136: $i,SV143: $i,SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ~ ! [SY411: $i] :
                  ~ ~ ! [SY412: $i] :
                        ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                  | ~ ( in @ SY412 @ SV104 ) )
                            | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                             != ( ordered_pair @ SY411 @ SY412 ) ) ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1719]) ).

thf(1725,plain,
    ! [SV136: $i,SV143: $i,SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( in @ ( sK41_SY379 @ SV104 @ SV87 @ SV114 ) @ SV114 )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1719]) ).

thf(1726,plain,
    ! [SV136: $i,SV143: $i,SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ! [SY411: $i] :
                ~ ~ ! [SY412: $i] :
                      ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                                | ~ ( in @ SY412 @ SV104 ) )
                          | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                           != ( ordered_pair @ SY411 @ SY412 ) ) ) )
        = $true )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1724]) ).

thf(1727,plain,
    ! [SV136: $i,SV143: $i,SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ! [SY411: $i] :
              ~ ~ ! [SY412: $i] :
                    ~ ~ ( ~ ~ ( ~ ( in @ SY411 @ SV87 )
                              | ~ ( in @ SY412 @ SV104 ) )
                        | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                         != ( ordered_pair @ SY411 @ SY412 ) ) ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1726]) ).

thf(1728,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ~ ~ ! [SY425: $i] :
                  ~ ~ ( ~ ~ ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                            | ~ ( in @ SY425 @ SV104 ) )
                      | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                       != ( ordered_pair @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SY425 ) ) ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1727]) ).

thf(1729,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ~ ! [SY425: $i] :
                ~ ~ ( ~ ~ ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                          | ~ ( in @ SY425 @ SV104 ) )
                    | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                     != ( ordered_pair @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SY425 ) ) ) )
        = $true )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1728]) ).

thf(1730,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ! [SY425: $i] :
              ~ ~ ( ~ ~ ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                        | ~ ( in @ SY425 @ SV104 ) )
                  | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                   != ( ordered_pair @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SY425 ) ) ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1729]) ).

thf(1731,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ~ ~ ( ~ ~ ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                      | ~ ( in @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) @ SV104 ) )
                | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
                 != ( ordered_pair @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) ) ) ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_forall_neg,[status(esa)],[1730]) ).

thf(1732,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                    | ~ ( in @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) @ SV104 ) )
              | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
               != ( ordered_pair @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) ) ) ) )
        = $true )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1731]) ).

thf(1733,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                | ~ ( in @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) @ SV104 ) )
          | ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
           != ( ordered_pair @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) ) ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1732]) ).

thf(1734,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
                | ~ ( in @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) @ SV104 ) ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1733]) ).

thf(1735,plain,
    ! [SV143: $i,SV136: $i,SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
         != ( ordered_pair @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1733]) ).

thf(1736,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
              | ~ ( in @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) @ SV104 ) ) )
        = $true )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1734]) ).

thf(1737,plain,
    ! [SV143: $i,SV136: $i,SV114: $i,SV87: $i,SV104: $i] :
      ( ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) ) )
        = $true )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1735]) ).

thf(1738,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
          | ~ ( in @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) @ SV104 ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1736]) ).

thf(1739,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( ~ ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1738]) ).

thf(1740,plain,
    ! [SV136: $i,SV143: $i,SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( ~ ( in @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) @ SV104 ) )
        = $false )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1738]) ).

thf(1741,plain,
    ! [SV87: $i,SV104: $i,SV114: $i,SV143: $i,SV136: $i] :
      ( ( ( in @ ( sK60_SY411 @ SV136 @ SV143 @ SV114 @ SV104 @ SV87 ) @ SV87 )
        = $true )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1739]) ).

thf(1742,plain,
    ! [SV136: $i,SV143: $i,SV114: $i,SV104: $i,SV87: $i] :
      ( ( ( in @ ( sK61_SY425 @ SV87 @ SV104 @ SV114 @ SV143 @ SV136 ) @ SV104 )
        = $true )
      | ( ( in @ SV143 @ SV104 )
        = $false )
      | ( ( in @ SV136 @ SV87 )
        = $false )
      | ( ( ( sK41_SY379 @ SV104 @ SV87 @ SV114 )
          = ( ordered_pair @ SV136 @ SV143 ) )
        = $false )
      | ( ( SV114
          = ( cartesian_product2 @ SV87 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1740]) ).

thf(1743,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[983,1742,1741,1737,1725,1723,1722,1721,1720,1716,1708,1705,1704,1703,1694,1682,1680,1679,1678,1677,1674,1673,1662,1661,1652,1650,1648,1645,1642,1632,1631,1627,1623,1622,1617,1614,1611,1604,1598,1597,1596,1589,1588,1585,1584,1583,1582,1581,1578,1573,1561,1559,1554,1544,1543,1541,1532,1530,1528,1525,1520,1519,1510,1508,1506,1503,1498,1492,1485,1484,1483,1464,1463,1462,1457,1456,1418,1415,1396,1381,1378,1377,1375,1374,1357,1356,1343,1342,1306,1298,1297,1268,1253,1252,1215,1214,1185,1169,1168,1122,1100,1068,1026,1003,1002,996,995,994,993,992,991,990,989,988,987,986,985,984]) ).

thf(1744,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[1743,966]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SEU177+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
% 0.09/0.17  % Computer : n003.cluster.edu
% 0.09/0.17  % Model    : x86_64 x86_64
% 0.09/0.17  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.17  % Memory   : 8046.5625MB
% 0.09/0.17  % OS       : Linux 6.8.0-71-generic
% 0.09/0.17  % CPULimit : 300
% 0.09/0.17  % WCLimit  : 300
% 0.09/0.17  % DateTime : Tue Oct  6 15:04:39 UTC 2026
% 0.09/0.18  % CPUTime  : 
% 0.09/0.18  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 8.56/1.67  .
% 8.56/1.67  
% 8.56/1.67   No.of.Axioms: 35
% 8.56/1.67  
% 8.56/1.67   Length.of.Defs: 0
% 8.56/1.67  
% 8.56/1.67   Contains.Choice.Funs: false
% 8.56/1.67  ..............................................................
% 8.56/1.67  
% 8.56/1.67  ********************************
% 8.56/1.67  *   All subproblems solved!    *
% 8.56/1.67  ********************************
% 8.56/1.67  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:37,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:1743,loop_count:0,foatp_calls:1,translation:fof_full)
% 8.56/1.67  
% 8.56/1.67  %**** Beginning of derivation protocol ****
% 8.56/1.67  % SZS output start CNFRefutation
% See solution above
% 8.56/1.68  
% 8.56/1.68  %**** End of derivation protocol ****
% 8.56/1.68  %**** no. of clauses in derivation: 1638 ****
% 8.56/1.68  %**** clause counter: 1743 ****
% 8.56/1.68  
% 8.56/1.68  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:37,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:1743,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------