TSTP Solution File: SEU161+2 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SEU161+2 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp
% Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s

% Computer : n005.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Tue Jul 19 12:07:22 EDT 2022

% Result   : Theorem 1.83s 2.02s
% Output   : CNFRefutation 2.33s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   26
%            Number of leaves      :  129
% Syntax   : Number of formulae    : 1281 ( 684 unt;  38 typ;   0 def)
%            Number of atoms       : 8075 (3198 equ;   0 cnn)
%            Maximal formula atoms :    6 (   6 avg)
%            Number of connectives : 17564 (3161   ~;2769   |; 186   &;11329   @)
%                                         (  62 <=>;  57  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   73 (  73   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   41 (  38 usr;   7 con; 0-4 aty)
%            Number of variables   : 3752 (   0   ^3738   !;  14   ?;3752   :)

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

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

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

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

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

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

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

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

thf(tp_sK10_D,type,
    sK10_D: $i > $i > $i > $i ).

thf(tp_sK11_C,type,
    sK11_C: $i > $i > $i ).

thf(tp_sK12_E,type,
    sK12_E: $i > $i > $i > $i > $i ).

thf(tp_sK13_SY188,type,
    sK13_SY188: $i > $i > $i > $i > $i ).

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

thf(tp_sK15_SY191,type,
    sK15_SY191: $i > $i > $i > $i ).

thf(tp_sK16_SY193,type,
    sK16_SY193: $i > $i > $i > $i ).

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

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

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

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

thf(tp_sK20_B,type,
    sK20_B: $i > $i ).

thf(tp_sK21_C,type,
    sK21_C: $i > $i > $i ).

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

thf(tp_sK23_C,type,
    sK23_C: $i > $i > $i ).

thf(tp_sK2_SY185,type,
    sK2_SY185: $i ).

thf(tp_sK3_C,type,
    sK3_C: $i > $i > $i ).

thf(tp_sK4_A,type,
    sK4_A: $i ).

thf(tp_sK5_A,type,
    sK5_A: $i ).

thf(tp_sK6_D,type,
    sK6_D: $i > $i > $i > $i ).

thf(tp_sK7_D,type,
    sK7_D: $i > $i > $i > $i ).

thf(tp_sK8_C,type,
    sK8_C: $i > $i > $i ).

thf(tp_sK9_SY187,type,
    sK9_SY187: $i > $i > $i ).

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

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

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

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

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

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

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

thf(1,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( empty @ A )
        & ( A != B )
        & ( empty @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t8_boole) ).

thf(2,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( in @ A @ B )
        & ( empty @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t7_boole) ).

thf(3,axiom,
    ! [A: $i] :
      ( ( empty @ A )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t6_boole) ).

thf(4,axiom,
    ! [A: $i] :
      ( ( set_difference @ empty_set @ A )
      = empty_set ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t4_boole) ).

thf(5,axiom,
    ! [A: $i] :
      ( ( set_difference @ A @ empty_set )
      = A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t3_boole) ).

thf(6,axiom,
    ! [A: $i,B: $i] :
      ( ! [C: $i] :
          ( ( in @ C @ A )
        <=> ( in @ C @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t2_tarski) ).

thf(7,axiom,
    ! [A: $i] :
      ( ( set_intersection2 @ A @ empty_set )
      = empty_set ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t2_boole) ).

thf(8,axiom,
    ! [A: $i] :
      ( ( set_union2 @ A @ empty_set )
      = A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t1_boole) ).

thf(9,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
     => ( disjoint @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',symmetry_r1_xboole_0) ).

thf(10,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',reflexivity_r1_tarski) ).

thf(11,axiom,
    ? [A: $i] :
      ~ ( empty @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rc2_xboole_0) ).

thf(12,axiom,
    ? [A: $i] : ( empty @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rc1_xboole_0) ).

thf(13,axiom,
    ! [A: $i,B: $i] :
      ~ ( proper_subset @ A @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',irreflexivity_r2_xboole_0) ).

thf(14,axiom,
    ! [A: $i,B: $i] :
      ( ( set_intersection2 @ A @ A )
      = A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',idempotence_k3_xboole_0) ).

thf(15,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ A )
      = A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',idempotence_k2_xboole_0) ).

thf(16,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ B @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc3_xboole_0) ).

thf(17,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ A @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc2_xboole_0) ).

thf(18,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( ordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

thf(19,axiom,
    empty @ empty_set,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(20,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k4_xboole_0) ).

thf(21,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k4_tarski) ).

thf(22,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k3_xboole_0) ).

thf(23,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k3_tarski) ).

thf(24,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k2_zfmisc_1) ).

thf(25,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k2_xboole_0) ).

thf(26,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k2_tarski) ).

thf(27,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k1_zfmisc_1) ).

thf(28,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k1_xboole_0) ).

thf(29,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k1_tarski) ).

thf(30,axiom,
    ! [A: $i,B: $i] :
      ( ( proper_subset @ A @ B )
    <=> ( ( subset @ A @ B )
        & ( A != B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d8_xboole_0) ).

thf(31,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_intersection2 @ A @ B )
        = empty_set ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d7_xboole_0) ).

thf(32,axiom,
    ! [A: $i,B: $i] :
      ( ( ordered_pair @ A @ B )
      = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d5_tarski) ).

thf(33,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_difference @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ~ ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d4_xboole_0) ).

thf(34,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( union @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ? [D: $i] :
              ( ( in @ C @ D )
              & ( in @ D @ A ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d4_tarski) ).

thf(35,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_intersection2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d3_xboole_0) ).

thf(36,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d3_tarski) ).

thf(37,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( cartesian_product2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ? [E: $i,F: $i] :
              ( ( in @ E @ A )
              & ( in @ F @ B )
              & ( D
                = ( ordered_pair @ E @ F ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_zfmisc_1) ).

thf(38,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_union2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            | ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_xboole_0) ).

thf(39,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( unordered_pair @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( D = A )
            | ( D = B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_tarski) ).

thf(40,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( powerset @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( subset @ C @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_zfmisc_1) ).

thf(41,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(42,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( singleton @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( C = A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_tarski) ).

thf(43,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d10_xboole_0) ).

thf(44,axiom,
    ! [A: $i,B: $i] :
      ( ( set_intersection2 @ A @ B )
      = ( set_intersection2 @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k3_xboole_0) ).

thf(45,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ B )
      = ( set_union2 @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_xboole_0) ).

thf(46,axiom,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(47,axiom,
    ! [A: $i,B: $i] :
      ( ( proper_subset @ A @ B )
     => ~ ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',antisymmetry_r2_xboole_0) ).

thf(48,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(49,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( singleton @ A )
        = ( unordered_pair @ B @ C ) )
     => ( B = C ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t9_zfmisc_1) ).

thf(50,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( singleton @ A )
        = ( unordered_pair @ B @ C ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t8_zfmisc_1) ).

thf(51,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ C @ B ) )
     => ( subset @ ( set_union2 @ A @ C ) @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t8_xboole_1) ).

thf(52,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_difference @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t83_xboole_1) ).

thf(53,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(54,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(55,axiom,
    ! [A: $i] :
      ( ( unordered_pair @ A @ A )
      = ( singleton @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t69_enumset1) ).

thf(56,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( disjoint @ B @ C ) )
     => ( disjoint @ A @ C ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t63_xboole_1) ).

thf(57,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( subset @ A @ B )
        & ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(58,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( disjoint @ A @ B )
          & ! [C: $i] :
              ~ ( in @ C @ ( set_intersection2 @ A @ B ) ) )
      & ~ ( ? [C: $i] : ( in @ C @ ( set_intersection2 @ A @ B ) )
          & ( disjoint @ A @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t4_xboole_0) ).

thf(59,axiom,
    ! [A: $i,B: $i] :
      ( ( set_difference @ A @ ( set_difference @ A @ B ) )
      = ( set_intersection2 @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t48_xboole_1) ).

thf(60,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( B
        = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t45_xboole_1) ).

thf(61,axiom,
    ! [A: $i,B: $i] :
      ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
      = ( set_difference @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t40_xboole_1) ).

thf(62,axiom,
    ! [A: $i] :
      ( ( subset @ A @ empty_set )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(63,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( disjoint @ A @ B )
          & ! [C: $i] :
              ~ ( ( in @ C @ A )
                & ( in @ C @ B ) ) )
      & ~ ( ? [C: $i] :
              ( ( in @ C @ A )
              & ( in @ C @ B ) )
          & ( disjoint @ A @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t3_xboole_0) ).

thf(64,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t39_zfmisc_1) ).

thf(65,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
      = ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t39_xboole_1) ).

thf(66,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ ( unordered_pair @ A @ B ) @ C )
    <=> ( ( in @ A @ C )
        & ( in @ B @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t38_zfmisc_1) ).

thf(67,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t37_zfmisc_1) ).

thf(68,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t37_xboole_1) ).

thf(69,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(70,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( ordered_pair @ A @ B )
        = ( ordered_pair @ C @ D ) )
     => ( ( A = C )
        & ( B = D ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t33_zfmisc_1) ).

thf(71,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t33_xboole_1) ).

thf(72,axiom,
    ! [A: $i] : ( subset @ empty_set @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(73,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_intersection2 @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(74,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t26_xboole_1) ).

thf(75,axiom,
    ( ( powerset @ empty_set )
    = ( singleton @ empty_set ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t1_zfmisc_1) ).

thf(76,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ B @ C ) )
     => ( subset @ A @ C ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t1_xboole_1) ).

thf(77,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ A @ C ) )
     => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t19_xboole_1) ).

thf(78,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(79,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_union2 @ A @ B )
        = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(80,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ~ ( ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ C @ D ) )
        & ( A != C )
        & ( A != D ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t10_zfmisc_1) ).

thf(81,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
    <=> ( ( in @ A @ C )
        & ( in @ B @ D ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l55_zfmisc_1) ).

thf(82,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l50_zfmisc_1) ).

thf(83,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l4_zfmisc_1) ).

thf(84,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( ( in @ C @ A )
        | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l3_zfmisc_1) ).

thf(85,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l32_xboole_1) ).

thf(86,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(87,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( in @ A @ B )
     => ( disjoint @ ( singleton @ A ) @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l28_zfmisc_1) ).

thf(88,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( disjoint @ ( singleton @ A ) @ B )
        & ( in @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l25_zfmisc_1) ).

thf(89,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( ( set_union2 @ ( singleton @ A ) @ B )
        = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l23_zfmisc_1) ).

thf(90,axiom,
    ! [A: $i] :
      ( ( singleton @ A )
     != empty_set ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(91,conjecture,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( ( set_union2 @ ( singleton @ A ) @ B )
        = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t46_zfmisc_1) ).

thf(92,negated_conjecture,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[91]) ).

thf(93,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[92]) ).

thf(94,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( empty @ A )
            & ( A != B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(95,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(96,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(97,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(98,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(99,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(100,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(101,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(102,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
         => ( disjoint @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(103,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(104,plain,
    ( ( ? [A: $i] :
          ~ ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(105,plain,
    ( ( ? [A: $i] : ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(106,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(107,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(108,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(109,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(110,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(111,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[18]) ).

thf(112,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(unfold_def,[status(thm)],[19]) ).

thf(113,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[20]) ).

thf(114,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[21]) ).

thf(115,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[22]) ).

thf(116,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[23]) ).

thf(117,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[24]) ).

thf(118,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[25]) ).

thf(119,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[26]) ).

thf(120,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[27]) ).

thf(121,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[28]) ).

thf(122,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[29]) ).

thf(123,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(124,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(125,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[32]) ).

thf(126,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_difference @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                & ~ ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[33]) ).

thf(127,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( union @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ? [D: $i] :
                  ( ( in @ C @ D )
                  & ( in @ D @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(128,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_intersection2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                & ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(129,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(130,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)],[37]) ).

thf(131,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_union2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                | ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[38]) ).

thf(132,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( unordered_pair @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( D = A )
                | ( D = B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(133,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[40]) ).

thf(134,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(135,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(136,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(137,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[44]) ).

thf(138,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[45]) ).

thf(139,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[46]) ).

thf(140,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
         => ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(141,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[48]) ).

thf(142,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[49]) ).

thf(143,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(144,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ C @ B ) )
         => ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[51]) ).

thf(145,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(146,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[53]) ).

thf(147,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[54]) ).

thf(148,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[55]) ).

thf(149,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[56]) ).

thf(150,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[57]) ).

thf(151,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( ~ ( disjoint @ A @ B )
              & ! [C: $i] :
                  ~ ( in @ C @ ( set_intersection2 @ A @ B ) ) )
          & ~ ( ? [C: $i] : ( in @ C @ ( set_intersection2 @ A @ B ) )
              & ( disjoint @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[58]) ).

thf(152,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[59]) ).

thf(153,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[60]) ).

thf(154,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[61]) ).

thf(155,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(156,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( ~ ( disjoint @ A @ B )
              & ! [C: $i] :
                  ~ ( ( in @ C @ A )
                    & ( in @ C @ B ) ) )
          & ~ ( ? [C: $i] :
                  ( ( in @ C @ A )
                  & ( in @ C @ B ) )
              & ( disjoint @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[63]) ).

thf(157,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[64]) ).

thf(158,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[65]) ).

thf(159,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ ( unordered_pair @ A @ B ) @ C )
        <=> ( ( in @ A @ C )
            & ( in @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[66]) ).

thf(160,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[67]) ).

thf(161,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[68]) ).

thf(162,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[69]) ).

thf(163,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)],[70]) ).

thf(164,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[71]) ).

thf(165,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(166,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(167,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[74]) ).

thf(168,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(169,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(170,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ A @ C ) )
         => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[77]) ).

thf(171,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[78]) ).

thf(172,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[79]) ).

thf(173,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ~ ( ( ( unordered_pair @ A @ B )
              = ( unordered_pair @ C @ D ) )
            & ( A != C )
            & ( A != D ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(174,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)],[81]) ).

thf(175,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[82]) ).

thf(176,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[83]) ).

thf(177,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( subset @ A @ B )
         => ( ( in @ C @ A )
            | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[84]) ).

thf(178,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[85]) ).

thf(179,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[86]) ).

thf(180,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[87]) ).

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

thf(182,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[89]) ).

thf(183,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[90]) ).

thf(184,plain,
    ( ( ! [SY185: $i] :
          ( ( in @ sK1_A @ SY185 )
         => ( ( set_union2 @ ( singleton @ sK1_A ) @ SY185 )
            = SY185 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[93]) ).

thf(185,plain,
    ( ( ( in @ sK1_A @ sK2_SY185 )
     => ( ( set_union2 @ ( singleton @ sK1_A ) @ sK2_SY185 )
        = sK2_SY185 ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[184]) ).

thf(186,plain,
    ( ( in @ sK1_A @ sK2_SY185 )
    = $true ),
    inference(standard_cnf,[status(thm)],[185]) ).

thf(187,plain,
    ( ( ( set_union2 @ ( singleton @ sK1_A ) @ sK2_SY185 )
      = sK2_SY185 )
    = $false ),
    inference(standard_cnf,[status(thm)],[185]) ).

thf(188,plain,
    ( ( ( ( set_union2 @ ( singleton @ sK1_A ) @ sK2_SY185 )
       != sK2_SY185 ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[187]) ).

thf(189,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[94]) ).

thf(190,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[95]) ).

thf(191,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[96]) ).

thf(192,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK3_C @ B @ A ) @ A )
              | ~ ( in @ ( sK3_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK3_C @ B @ A ) @ A )
              | ( in @ ( sK3_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[99]) ).

thf(193,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[102]) ).

thf(194,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[103]) ).

thf(195,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[104]) ).

thf(196,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(extcnf_combined,[status(esa)],[105]) ).

thf(197,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[106]) ).

thf(198,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[107]) ).

thf(199,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[108]) ).

thf(200,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[109]) ).

thf(201,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[110]) ).

thf(202,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( subset @ A @ B )
          | ( proper_subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( A != B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( subset @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[123]) ).

thf(203,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_intersection2 @ A @ B )
           != empty_set )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[124]) ).

thf(204,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK6_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK6_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK6_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK6_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_difference @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_difference @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ~ ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[126]) ).

thf(205,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY186: $i] :
                  ( ~ ( in @ ( sK8_C @ B @ A ) @ SY186 )
                  | ~ ( in @ SY186 @ A ) )
              | ~ ( in @ ( sK8_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK8_C @ B @ A ) @ ( sK9_SY187 @ B @ A ) )
                & ( in @ ( sK9_SY187 @ B @ A ) @ A ) )
              | ( in @ ( sK8_C @ B @ A ) @ B ) ) )
          | ( B
            = ( union @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( union @ A ) )
          | ( ! [C: $i] :
                ( ! [D: $i] :
                    ( ~ ( in @ C @ D )
                    | ~ ( in @ D @ A ) )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( ( in @ C @ ( sK7_D @ C @ B @ A ) )
                  & ( in @ ( sK7_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[127]) ).

thf(206,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK10_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK10_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK10_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK10_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK10_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK10_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK10_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_intersection2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_intersection2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ~ ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[128]) ).

thf(207,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK11_C @ B @ A ) @ A )
            & ~ ( in @ ( sK11_C @ B @ A ) @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ( in @ C @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[129]) ).

thf(208,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY189: $i,SY190: $i] :
                      ( ~ ( in @ SY189 @ A )
                      | ~ ( in @ SY190 @ B )
                      | ( ( sK14_D @ C @ B @ A )
                       != ( ordered_pair @ SY189 @ SY190 ) ) )
                  | ~ ( in @ ( sK14_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK15_SY191 @ C @ B @ A ) @ A )
                    & ( in @ ( sK16_SY193 @ C @ B @ A ) @ B )
                    & ( ( sK14_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK15_SY191 @ C @ B @ A ) @ ( sK16_SY193 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK14_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK12_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK13_SY188 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK12_E @ D @ C @ B @ A ) @ ( sK13_SY188 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[130]) ).

thf(209,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK17_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK17_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK17_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ B ) ) )
              | ( C
                = ( set_union2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_union2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A )
                    | ( in @ D @ B ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[131]) ).

thf(210,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK18_D @ C @ B @ A ) @ C )
                  | ( ( sK18_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK18_D @ C @ B @ A ) @ C )
                  | ( ( sK18_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK18_D @ C @ B @ A ) @ C )
                  | ( ( sK18_D @ C @ B @ A )
                    = A )
                  | ( ( sK18_D @ C @ B @ A )
                    = B ) ) )
              | ( C
                = ( unordered_pair @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( unordered_pair @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( D = A )
                    | ( D = B ) )
                & ! [D: $i] :
                    ( ( D != A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ( D != B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[132]) ).

thf(211,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK19_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK19_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK19_C @ B @ A ) @ B )
              | ( subset @ ( sK19_C @ B @ A ) @ A ) ) )
          | ( B
            = ( powerset @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( subset @ C @ A ) )
            & ! [C: $i] :
                ( ~ ( subset @ C @ A )
                | ( in @ C @ B ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[133]) ).

thf(212,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK20_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[134]) ).

thf(213,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK21_C @ B @ A )
               != A )
              | ~ ( in @ ( sK21_C @ B @ A ) @ B ) )
            & ( ( ( sK21_C @ B @ A )
                = A )
              | ( in @ ( sK21_C @ B @ A ) @ B ) ) )
          | ( B
            = ( singleton @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( singleton @ A ) )
          | ( ! [C: $i] :
                ( ( C != A )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( C = A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[135]) ).

thf(214,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ A )
          | ( A = B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[136]) ).

thf(215,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[140]) ).

thf(216,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[141]) ).

thf(217,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[142]) ).

thf(218,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[143]) ).

thf(219,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[144]) ).

thf(220,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != A )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[145]) ).

thf(221,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[147]) ).

thf(222,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[149]) ).

thf(223,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[150]) ).

thf(224,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK22_C @ B @ A ) @ ( set_intersection2 @ A @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ~ ( in @ C @ ( set_intersection2 @ A @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[151]) ).

thf(225,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[153]) ).

thf(226,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[155]) ).

thf(227,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK23_C @ B @ A ) @ A )
            & ( in @ ( sK23_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[156]) ).

thf(228,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[157]) ).

thf(229,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ C )
              | ( subset @ ( unordered_pair @ A @ B ) @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ A @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[159]) ).

thf(230,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[160]) ).

thf(231,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[161]) ).

thf(232,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ! [D: $i] :
                  ( ( ordered_pair @ A @ B )
                 != ( ordered_pair @ C @ D ) )
              | ( A = C ) )
          & ! [C: $i,D: $i] :
              ( ( ( ordered_pair @ A @ B )
               != ( ordered_pair @ C @ D ) )
              | ( B = D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[163]) ).

thf(233,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[164]) ).

thf(234,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[166]) ).

thf(235,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[167]) ).

thf(236,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[169]) ).

thf(237,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[170]) ).

thf(238,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[172]) ).

thf(239,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( A = D )
          | ( A = C )
          | ( ( unordered_pair @ A @ B )
           != ( unordered_pair @ C @ D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[173]) ).

thf(240,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[174]) ).

thf(241,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[175]) ).

thf(242,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[176]) ).

thf(243,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ( in @ C @ A )
              | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[177]) ).

thf(244,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[178]) ).

thf(245,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[179]) ).

thf(246,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[180]) ).

thf(247,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[181]) ).

thf(248,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[182]) ).

thf(249,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[183]) ).

thf(250,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[249]) ).

thf(251,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[248]) ).

thf(252,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[247]) ).

thf(253,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[246]) ).

thf(254,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[245]) ).

thf(255,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[244]) ).

thf(256,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ( in @ C @ A )
              | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[243]) ).

thf(257,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[242]) ).

thf(258,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[241]) ).

thf(259,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[240]) ).

thf(260,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( A = D )
          | ( A = C )
          | ( ( unordered_pair @ A @ B )
           != ( unordered_pair @ C @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[239]) ).

thf(261,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[238]) ).

thf(262,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[171]) ).

thf(263,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[237]) ).

thf(264,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[236]) ).

thf(265,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[168]) ).

thf(266,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[235]) ).

thf(267,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[234]) ).

thf(268,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(269,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[233]) ).

thf(270,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ! [D: $i] :
                  ( ( ordered_pair @ A @ B )
                 != ( ordered_pair @ C @ D ) )
              | ( A = C ) )
          & ! [C: $i,D: $i] :
              ( ( ( ordered_pair @ A @ B )
               != ( ordered_pair @ C @ D ) )
              | ( B = D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(271,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[162]) ).

thf(272,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[231]) ).

thf(273,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[230]) ).

thf(274,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ C )
              | ( subset @ ( unordered_pair @ A @ B ) @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ A @ C ) )
          & ! [B: $i,C: $i] :
              ( ~ ( subset @ ( unordered_pair @ A @ B ) @ C )
              | ( in @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[229]) ).

thf(275,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[158]) ).

thf(276,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ ( singleton @ B ) )
          | ( A = empty_set )
          | ( A
            = ( singleton @ B ) ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] : ( subset @ A @ ( singleton @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ( A
           != ( singleton @ B ) )
          | ( subset @ A @ ( singleton @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[228]) ).

thf(277,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK23_C @ B @ A ) @ A )
            & ( in @ ( sK23_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[227]) ).

thf(278,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[226]) ).

thf(279,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[154]) ).

thf(280,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[225]) ).

thf(281,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[152]) ).

thf(282,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK22_C @ B @ A ) @ ( set_intersection2 @ A @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ~ ( in @ C @ ( set_intersection2 @ A @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[224]) ).

thf(283,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[223]) ).

thf(284,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[222]) ).

thf(285,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[148]) ).

thf(286,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[221]) ).

thf(287,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[146]) ).

thf(288,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != A )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[220]) ).

thf(289,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[219]) ).

thf(290,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[218]) ).

thf(291,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[217]) ).

thf(292,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[216]) ).

thf(293,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[215]) ).

thf(294,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[139]) ).

thf(295,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[138]) ).

thf(296,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[137]) ).

thf(297,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ A )
          | ( A = B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ( A != B )
          | ( subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[214]) ).

thf(298,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK21_C @ B @ A )
               != A )
              | ~ ( in @ ( sK21_C @ B @ A ) @ B ) )
            & ( ( ( sK21_C @ B @ A )
                = A )
              | ( in @ ( sK21_C @ B @ A ) @ B ) ) )
          | ( B
            = ( singleton @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( singleton @ A ) )
          | ( ! [C: $i] :
                ( ( C != A )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( C = A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[213]) ).

thf(299,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK20_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[212]) ).

thf(300,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK19_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK19_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK19_C @ B @ A ) @ B )
              | ( subset @ ( sK19_C @ B @ A ) @ A ) ) )
          | ( B
            = ( powerset @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( powerset @ A ) )
          | ( ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( subset @ C @ A ) )
            & ! [C: $i] :
                ( ~ ( subset @ C @ A )
                | ( in @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[211]) ).

thf(301,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK18_D @ C @ B @ A ) @ C )
                  | ( ( sK18_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK18_D @ C @ B @ A ) @ C )
                  | ( ( sK18_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK18_D @ C @ B @ A ) @ C )
                  | ( ( sK18_D @ C @ B @ A )
                    = A )
                  | ( ( sK18_D @ C @ B @ A )
                    = B ) ) )
              | ( C
                = ( unordered_pair @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( unordered_pair @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( D = A )
                    | ( D = B ) )
                & ! [D: $i] :
                    ( ( D != A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ( D != B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[210]) ).

thf(302,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK17_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK17_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK17_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK17_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK17_D @ C @ B @ A ) @ B ) ) )
              | ( C
                = ( set_union2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_union2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A )
                    | ( in @ D @ B ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ B )
                    | ( in @ D @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[209]) ).

thf(303,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY189: $i,SY190: $i] :
                      ( ~ ( in @ SY189 @ A )
                      | ~ ( in @ SY190 @ B )
                      | ( ( sK14_D @ C @ B @ A )
                       != ( ordered_pair @ SY189 @ SY190 ) ) )
                  | ~ ( in @ ( sK14_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK15_SY191 @ C @ B @ A ) @ A )
                    & ( in @ ( sK16_SY193 @ C @ B @ A ) @ B )
                    & ( ( sK14_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK15_SY191 @ C @ B @ A ) @ ( sK16_SY193 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK14_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( cartesian_product2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( cartesian_product2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ! [E: $i,F: $i] :
                        ( ~ ( in @ E @ A )
                        | ~ ( in @ F @ B )
                        | ( D
                         != ( ordered_pair @ E @ F ) ) )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( ( in @ ( sK12_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK13_SY188 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK12_E @ D @ C @ B @ A ) @ ( sK13_SY188 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[208]) ).

thf(304,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK11_C @ B @ A ) @ A )
            & ~ ( in @ ( sK11_C @ B @ A ) @ B ) )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ( in @ C @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[207]) ).

thf(305,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK10_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK10_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK10_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK10_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK10_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK10_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK10_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_intersection2 @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_intersection2 @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ~ ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[206]) ).

thf(306,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY186: $i] :
                  ( ~ ( in @ ( sK8_C @ B @ A ) @ SY186 )
                  | ~ ( in @ SY186 @ A ) )
              | ~ ( in @ ( sK8_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK8_C @ B @ A ) @ ( sK9_SY187 @ B @ A ) )
                & ( in @ ( sK9_SY187 @ B @ A ) @ A ) )
              | ( in @ ( sK8_C @ B @ A ) @ B ) ) )
          | ( B
            = ( union @ A ) ) )
      & ! [A: $i,B: $i] :
          ( ( B
           != ( union @ A ) )
          | ( ! [C: $i] :
                ( ! [D: $i] :
                    ( ~ ( in @ C @ D )
                    | ~ ( in @ D @ A ) )
                | ( in @ C @ B ) )
            & ! [C: $i] :
                ( ~ ( in @ C @ B )
                | ( ( in @ C @ ( sK7_D @ C @ B @ A ) )
                  & ( in @ ( sK7_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[205]) ).

thf(307,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK6_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK6_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK6_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK6_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_difference @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_difference @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ~ ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[204]) ).

thf(308,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[125]) ).

thf(309,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_intersection2 @ A @ B )
           != empty_set )
          | ( disjoint @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[203]) ).

thf(310,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( subset @ A @ B )
          | ( proper_subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( A != B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[202]) ).

thf(311,plain,
    $true = $true,
    inference(copy,[status(thm)],[122]) ).

thf(312,plain,
    $true = $true,
    inference(copy,[status(thm)],[121]) ).

thf(313,plain,
    $true = $true,
    inference(copy,[status(thm)],[120]) ).

thf(314,plain,
    $true = $true,
    inference(copy,[status(thm)],[119]) ).

thf(315,plain,
    $true = $true,
    inference(copy,[status(thm)],[118]) ).

thf(316,plain,
    $true = $true,
    inference(copy,[status(thm)],[117]) ).

thf(317,plain,
    $true = $true,
    inference(copy,[status(thm)],[116]) ).

thf(318,plain,
    $true = $true,
    inference(copy,[status(thm)],[115]) ).

thf(319,plain,
    $true = $true,
    inference(copy,[status(thm)],[114]) ).

thf(320,plain,
    $true = $true,
    inference(copy,[status(thm)],[113]) ).

thf(321,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[112]) ).

thf(322,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[111]) ).

thf(323,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[201]) ).

thf(324,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[200]) ).

thf(325,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[199]) ).

thf(326,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[198]) ).

thf(327,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[197]) ).

thf(328,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(copy,[status(thm)],[196]) ).

thf(329,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[195]) ).

thf(330,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[194]) ).

thf(331,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[193]) ).

thf(332,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[101]) ).

thf(333,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[100]) ).

thf(334,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK3_C @ B @ A ) @ A )
              | ~ ( in @ ( sK3_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK3_C @ B @ A ) @ A )
              | ( in @ ( sK3_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[192]) ).

thf(335,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[98]) ).

thf(336,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[97]) ).

thf(337,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[191]) ).

thf(338,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[190]) ).

thf(339,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[189]) ).

thf(340,plain,
    ( ( in @ sK1_A @ sK2_SY185 )
    = $true ),
    inference(copy,[status(thm)],[186]) ).

thf(341,plain,
    ( ( ( ( set_union2 @ ( singleton @ sK1_A ) @ sK2_SY185 )
       != sK2_SY185 ) )
    = $true ),
    inference(copy,[status(thm)],[188]) ).

thf(342,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK22_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ! [SX2: $i] :
                    ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
                | ~ ( disjoint @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[282]) ).

thf(343,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ SX1 )
                 != empty_set )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[255]) ).

thf(344,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK19_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK19_C @ SX1 @ SX0 ) @ SX0 ) ) )
                | ( SX1
                  = ( powerset @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( powerset @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ( subset @ SX2 @ SX0 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( subset @ SX2 @ SX0 )
                          | ( in @ SX2 @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[300]) ).

thf(345,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[304]) ).

thf(346,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK20_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[299]) ).

thf(347,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ SX1 )
                 != SX0 )
                | ( disjoint @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( disjoint @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[288]) ).

thf(348,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[254]) ).

thf(349,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_intersection2 @ SX0 @ SX1 )
                 != empty_set )
                | ( disjoint @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( disjoint @ SX0 @ SX1 )
                | ( ( set_intersection2 @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[309]) ).

thf(350,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK21_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK21_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( singleton @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( singleton @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ( SX2 != SX0 )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ( SX2 = SX0 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[298]) ).

thf(351,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX2 )
                  | ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 ) )
            | ~ ~ ( ~ ! [SX1: $i,SX2: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX1: $i,SX2: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SX0 @ SX1 ) @ SX2 )
                        | ( in @ SX1 @ SX2 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[274]) ).

thf(352,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[259]) ).

thf(353,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_difference @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_difference @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX0 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ~ ( in @ SX3 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[307]) ).

thf(354,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ! [SX2: $i] :
                            ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX2 )
                            | ~ ( in @ SX2 @ SX0 ) )
                        | ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ~ ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ ( sK9_SY187 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK9_SY187 @ SX1 @ SX0 ) @ SX0 ) )
                        | ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) ) )
                | ( SX1
                  = ( union @ SX0 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1
                 != ( union @ SX0 ) )
                | ~ ( ~ ! [SX2: $i] :
                          ( ! [SX3: $i] :
                              ( ~ ( in @ SX2 @ SX3 )
                              | ~ ( in @ SX3 @ SX0 ) )
                          | ( in @ SX2 @ SX1 ) )
                    | ~ ! [SX2: $i] :
                          ( ~ ( in @ SX2 @ SX1 )
                          | ~ ( ~ ( in @ SX2 @ ( sK7_D @ SX2 @ SX1 @ SX0 ) )
                              | ~ ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[306]) ).

thf(355,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK18_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK18_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK18_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK18_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK18_D @ SX2 @ SX1 @ SX0 )
                            = SX1 ) ) )
                  | ( SX2
                    = ( unordered_pair @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( unordered_pair @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( SX3 = SX0 )
                            | ( SX3 = SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ( SX3 != SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[301]) ).

thf(356,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0
                       != ( singleton @ SX1 ) )
                      | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[257]) ).

thf(357,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[273]) ).

thf(358,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ! [SX3: $i,SX4: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX4 @ SX1 )
                              | ( ( sK14_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ SX3 @ SX4 ) ) )
                          | ~ ( in @ ( sK14_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ( in @ ( sK16_SY193 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                              | ( ( sK14_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ ( sK15_SY191 @ SX2 @ SX1 @ SX0 ) @ ( sK16_SY193 @ SX2 @ SX1 @ SX0 ) ) ) )
                          | ( in @ ( sK14_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) )
                  | ( SX2
                    = ( cartesian_product2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( cartesian_product2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ! [SX4: $i,SX5: $i] :
                                ( ~ ( in @ SX4 @ SX0 )
                                | ~ ( in @ SX5 @ SX1 )
                                | ( SX3
                                 != ( ordered_pair @ SX4 @ SX5 ) ) )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ( in @ ( sK13_SY188 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                                | ( SX3
                                 != ( ordered_pair @ ( sK12_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ ( sK13_SY188 @ SX3 @ SX2 @ SX1 @ SX0 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[303]) ).

thf(359,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i] :
                  ( ! [SX3: $i] :
                      ( ( ordered_pair @ SX0 @ SX1 )
                     != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX0 = SX2 ) )
            | ~ ! [SX2: $i,SX3: $i] :
                  ( ( ( ordered_pair @ SX0 @ SX1 )
                   != ( ordered_pair @ SX2 @ SX3 ) )
                  | ( SX1 = SX3 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[270]) ).

thf(360,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX0 )
                    | ~ ( in @ SX2 @ SX1 ) )
                | ~ ( disjoint @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[277]) ).

thf(361,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0 = SX1 )
                | ~ ( subset @ SX0 @ SX1 )
                | ( proper_subset @ SX0 @ SX1 ) )
          | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( proper_subset @ SX0 @ SX1 )
                      | ( SX0 != SX1 ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ~ ( proper_subset @ SX0 @ SX1 )
                      | ( subset @ SX0 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[310]) ).

thf(362,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
                | ( SX0 = empty_set )
                | ( SX0
                  = ( singleton @ SX1 ) ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0
                       != ( singleton @ SX1 ) )
                      | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[276]) ).

thf(363,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[334]) ).

thf(364,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ~ ( subset @ SX1 @ SX0 )
                | ( SX0 = SX1 ) )
          | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0 != SX1 )
                      | ( subset @ SX0 @ SX1 ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX0 != SX1 )
                      | ( subset @ SX1 @ SX0 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[297]) ).

thf(365,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_intersection2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_intersection2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ~ ( in @ SX3 @ SX1 )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX0 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[305]) ).

thf(366,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ SX1 )
                 != empty_set )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ SX0 @ SX1 )
                | ( ( set_difference @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[272]) ).

thf(367,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK17_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                  | ( SX2
                    = ( set_union2 @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_union2 @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX2 )
                            | ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX0 )
                                  | ( in @ SX3 @ SX2 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX1 )
                                  | ( in @ SX3 @ SX2 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[302]) ).

thf(368,plain,
    ! [SV1: $i] :
      ( ( ( ( singleton @ SV1 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[250]) ).

thf(369,plain,
    ! [SV2: $i] :
      ( ( ! [SY194: $i] :
            ( ~ ( in @ SV2 @ SY194 )
            | ( ( set_union2 @ ( singleton @ SV2 ) @ SY194 )
              = SY194 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[251]) ).

thf(370,plain,
    ! [SV3: $i] :
      ( ( ! [SY195: $i] :
            ( ~ ( disjoint @ ( singleton @ SV3 ) @ SY195 )
            | ~ ( in @ SV3 @ SY195 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[252]) ).

thf(371,plain,
    ! [SV4: $i] :
      ( ( ! [SY196: $i] :
            ( ( in @ SV4 @ SY196 )
            | ( disjoint @ ( singleton @ SV4 ) @ SY196 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[253]) ).

thf(372,plain,
    ! [SV5: $i] :
      ( ( ! [SY197: $i] :
            ( ~ ( subset @ SV5 @ SY197 )
            | ! [SY198: $i] :
                ( ( in @ SY198 @ SV5 )
                | ( subset @ SV5 @ ( set_difference @ SY197 @ ( singleton @ SY198 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[256]) ).

thf(373,plain,
    ! [SV6: $i] :
      ( ( ! [SY199: $i] :
            ( ~ ( in @ SV6 @ SY199 )
            | ( subset @ SV6 @ ( union @ SY199 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[258]) ).

thf(374,plain,
    ! [SV7: $i] :
      ( ( ! [SY200: $i,SY201: $i,SY202: $i] :
            ( ( SV7 = SY202 )
            | ( SV7 = SY201 )
            | ( ( unordered_pair @ SV7 @ SY200 )
             != ( unordered_pair @ SY201 @ SY202 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[260]) ).

thf(375,plain,
    ! [SV8: $i] :
      ( ( ! [SY203: $i] :
            ( ~ ( subset @ SV8 @ SY203 )
            | ( ( set_union2 @ SV8 @ SY203 )
              = SY203 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[261]) ).

thf(376,plain,
    ! [SV9: $i] :
      ( ( ! [SY204: $i] : ( subset @ ( set_intersection2 @ SV9 @ SY204 ) @ SV9 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[262]) ).

thf(377,plain,
    ! [SV10: $i] :
      ( ( ! [SY205: $i,SY206: $i] :
            ( ~ ( subset @ SV10 @ SY205 )
            | ~ ( subset @ SV10 @ SY206 )
            | ( subset @ SV10 @ ( set_intersection2 @ SY205 @ SY206 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[263]) ).

thf(378,plain,
    ! [SV11: $i] :
      ( ( ! [SY207: $i,SY208: $i] :
            ( ~ ( subset @ SV11 @ SY207 )
            | ~ ( subset @ SY207 @ SY208 )
            | ( subset @ SV11 @ SY208 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[264]) ).

thf(379,plain,
    ! [SV12: $i] :
      ( ( ! [SY209: $i] :
            ( ~ ( subset @ SV12 @ SY209 )
            | ! [SY210: $i] : ( subset @ ( set_intersection2 @ SV12 @ SY210 ) @ ( set_intersection2 @ SY209 @ SY210 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[266]) ).

thf(380,plain,
    ! [SV13: $i] :
      ( ( ! [SY211: $i] :
            ( ~ ( subset @ SV13 @ SY211 )
            | ( ( set_intersection2 @ SV13 @ SY211 )
              = SV13 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[267]) ).

thf(381,plain,
    ! [SV14: $i] :
      ( ( subset @ empty_set @ SV14 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[268]) ).

thf(382,plain,
    ! [SV15: $i] :
      ( ( ! [SY212: $i] :
            ( ~ ( subset @ SV15 @ SY212 )
            | ! [SY213: $i] : ( subset @ ( set_difference @ SV15 @ SY213 ) @ ( set_difference @ SY212 @ SY213 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[269]) ).

thf(383,plain,
    ! [SV16: $i] :
      ( ( ! [SY214: $i] : ( subset @ ( set_difference @ SV16 @ SY214 ) @ SV16 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[271]) ).

thf(384,plain,
    ! [SV17: $i] :
      ( ( ! [SY215: $i] :
            ( ( set_union2 @ SV17 @ ( set_difference @ SY215 @ SV17 ) )
            = ( set_union2 @ SV17 @ SY215 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[275]) ).

thf(385,plain,
    ! [SV18: $i] :
      ( ( ~ ( subset @ SV18 @ empty_set )
        | ( SV18 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[278]) ).

thf(386,plain,
    ! [SV19: $i] :
      ( ( ! [SY216: $i] :
            ( ( set_difference @ ( set_union2 @ SV19 @ SY216 ) @ SY216 )
            = ( set_difference @ SV19 @ SY216 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[279]) ).

thf(387,plain,
    ! [SV20: $i] :
      ( ( ! [SY217: $i] :
            ( ~ ( subset @ SV20 @ SY217 )
            | ( SY217
              = ( set_union2 @ SV20 @ ( set_difference @ SY217 @ SV20 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[280]) ).

thf(388,plain,
    ! [SV21: $i] :
      ( ( ! [SY218: $i] :
            ( ( set_difference @ SV21 @ ( set_difference @ SV21 @ SY218 ) )
            = ( set_intersection2 @ SV21 @ SY218 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[281]) ).

thf(389,plain,
    ! [SV22: $i] :
      ( ( ! [SY219: $i] :
            ( ~ ( proper_subset @ SY219 @ SV22 )
            | ~ ( subset @ SV22 @ SY219 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[283]) ).

thf(390,plain,
    ! [SV23: $i] :
      ( ( ! [SY220: $i,SY221: $i] :
            ( ~ ( disjoint @ SY220 @ SY221 )
            | ~ ( subset @ SV23 @ SY220 )
            | ( disjoint @ SV23 @ SY221 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[284]) ).

thf(391,plain,
    ! [SV24: $i] :
      ( ( ( unordered_pair @ SV24 @ SV24 )
        = ( singleton @ SV24 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[285]) ).

thf(392,plain,
    ! [SV25: $i] :
      ( ( ! [SY222: $i] :
            ( ~ ( subset @ ( singleton @ SV25 ) @ ( singleton @ SY222 ) )
            | ( SV25 = SY222 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[286]) ).

thf(393,plain,
    ! [SV26: $i] :
      ( ( ! [SY223: $i] : ( subset @ SV26 @ ( set_union2 @ SV26 @ SY223 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[287]) ).

thf(394,plain,
    ! [SV27: $i] :
      ( ( ! [SY224: $i,SY225: $i] :
            ( ~ ( subset @ SV27 @ SY224 )
            | ~ ( subset @ SY225 @ SY224 )
            | ( subset @ ( set_union2 @ SV27 @ SY225 ) @ SY224 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[289]) ).

thf(395,plain,
    ! [SV28: $i] :
      ( ( ! [SY226: $i] :
            ( ! [SY227: $i] :
                ( ( singleton @ SV28 )
               != ( unordered_pair @ SY226 @ SY227 ) )
            | ( SV28 = SY226 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[290]) ).

thf(396,plain,
    ! [SV29: $i] :
      ( ( ! [SY228: $i,SY229: $i] :
            ( ( ( singleton @ SV29 )
             != ( unordered_pair @ SY228 @ SY229 ) )
            | ( SY228 = SY229 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[291]) ).

thf(397,plain,
    ! [SV30: $i] :
      ( ( ! [SY230: $i] :
            ( ~ ( in @ SV30 @ SY230 )
            | ~ ( in @ SY230 @ SV30 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[292]) ).

thf(398,plain,
    ! [SV31: $i] :
      ( ( ! [SY231: $i] :
            ( ~ ( proper_subset @ SV31 @ SY231 )
            | ~ ( proper_subset @ SY231 @ SV31 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[293]) ).

thf(399,plain,
    ! [SV32: $i] :
      ( ( ! [SY232: $i] :
            ( ( unordered_pair @ SV32 @ SY232 )
            = ( unordered_pair @ SY232 @ SV32 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[294]) ).

thf(400,plain,
    ! [SV33: $i] :
      ( ( ! [SY233: $i] :
            ( ( set_union2 @ SV33 @ SY233 )
            = ( set_union2 @ SY233 @ SV33 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[295]) ).

thf(401,plain,
    ! [SV34: $i] :
      ( ( ! [SY234: $i] :
            ( ( set_intersection2 @ SV34 @ SY234 )
            = ( set_intersection2 @ SY234 @ SV34 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[296]) ).

thf(402,plain,
    ! [SV35: $i] :
      ( ( ! [SY235: $i] :
            ( ( ordered_pair @ SV35 @ SY235 )
            = ( unordered_pair @ ( unordered_pair @ SV35 @ SY235 ) @ ( singleton @ SV35 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[308]) ).

thf(403,plain,
    ! [SV36: $i] :
      ( ( ! [SY236: $i] :
            ~ ( empty @ ( ordered_pair @ SV36 @ SY236 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[322]) ).

thf(404,plain,
    ! [SV37: $i] :
      ( ( ( empty @ SV37 )
        | ! [SY237: $i] :
            ~ ( empty @ ( set_union2 @ SV37 @ SY237 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[323]) ).

thf(405,plain,
    ! [SV38: $i] :
      ( ( ( empty @ SV38 )
        | ! [SY238: $i] :
            ~ ( empty @ ( set_union2 @ SY238 @ SV38 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[324]) ).

thf(406,plain,
    ! [SV39: $i] :
      ( ( ( set_union2 @ SV39 @ SV39 )
        = SV39 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[325]) ).

thf(407,plain,
    ! [SV40: $i] :
      ( ( ( set_intersection2 @ SV40 @ SV40 )
        = SV40 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[326]) ).

thf(408,plain,
    ! [SV41: $i] :
      ( ( ~ ( proper_subset @ SV41 @ SV41 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[327]) ).

thf(409,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[329]) ).

thf(410,plain,
    ! [SV42: $i] :
      ( ( subset @ SV42 @ SV42 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[330]) ).

thf(411,plain,
    ! [SV43: $i] :
      ( ( ! [SY239: $i] :
            ( ~ ( disjoint @ SV43 @ SY239 )
            | ( disjoint @ SY239 @ SV43 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[331]) ).

thf(412,plain,
    ! [SV44: $i] :
      ( ( ( set_union2 @ SV44 @ empty_set )
        = SV44 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[332]) ).

thf(413,plain,
    ! [SV45: $i] :
      ( ( ( set_intersection2 @ SV45 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[333]) ).

thf(414,plain,
    ! [SV46: $i] :
      ( ( ( set_difference @ SV46 @ empty_set )
        = SV46 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[335]) ).

thf(415,plain,
    ! [SV47: $i] :
      ( ( ( set_difference @ empty_set @ SV47 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[336]) ).

thf(416,plain,
    ! [SV48: $i] :
      ( ( ~ ( empty @ SV48 )
        | ( SV48 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[337]) ).

thf(417,plain,
    ! [SV49: $i] :
      ( ( ! [SY240: $i] :
            ( ~ ( empty @ SY240 )
            | ~ ( in @ SV49 @ SY240 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[338]) ).

thf(418,plain,
    ! [SV50: $i] :
      ( ( ! [SY241: $i] :
            ( ( SV50 = SY241 )
            | ~ ( empty @ SV50 )
            | ~ ( empty @ SY241 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[339]) ).

thf(419,plain,
    ( ( ( set_union2 @ ( singleton @ sK1_A ) @ sK2_SY185 )
      = sK2_SY185 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[341]) ).

thf(420,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK22_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[342]) ).

thf(421,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[343]) ).

thf(422,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK19_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK19_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( powerset @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( subset @ SX2 @ SX0 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( subset @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[344]) ).

thf(423,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[345]) ).

thf(424,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK20_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[346]) ).

thf(425,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[347]) ).

thf(426,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[348]) ).

thf(427,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[349]) ).

thf(428,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK21_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK21_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( singleton @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ( SX2 != SX0 )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( SX2 = SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[350]) ).

thf(429,plain,
    ! [SV51: $i] :
      ( ( ~ ( ~ ! [SY242: $i,SY243: $i] :
                  ( ~ ( in @ SV51 @ SY243 )
                  | ~ ( in @ SY242 @ SY243 )
                  | ( subset @ ( unordered_pair @ SV51 @ SY242 ) @ SY243 ) )
            | ~ ~ ( ~ ! [SY244: $i,SY245: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV51 @ SY244 ) @ SY245 )
                        | ( in @ SV51 @ SY245 ) )
                  | ~ ! [SY246: $i,SY247: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV51 @ SY246 ) @ SY247 )
                        | ( in @ SY246 @ SY247 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[351]) ).

thf(430,plain,
    ! [SV52: $i] :
      ( ( ! [SY248: $i] :
            ~ ( ~ ! [SY249: $i,SY250: $i] :
                    ( ~ ( in @ SV52 @ SY249 )
                    | ~ ( in @ SY248 @ SY250 )
                    | ( in @ ( ordered_pair @ SV52 @ SY248 ) @ ( cartesian_product2 @ SY249 @ SY250 ) ) )
              | ~ ~ ( ~ ! [SY251: $i] :
                          ( ! [SY252: $i] :
                              ~ ( in @ ( ordered_pair @ SV52 @ SY248 ) @ ( cartesian_product2 @ SY251 @ SY252 ) )
                          | ( in @ SV52 @ SY251 ) )
                    | ~ ! [SY253: $i,SY254: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV52 @ SY248 ) @ ( cartesian_product2 @ SY253 @ SY254 ) )
                          | ( in @ SY248 @ SY254 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[352]) ).

thf(431,plain,
    ! [SV53: $i] :
      ( ( ~ ( ~ ! [SY255: $i,SY256: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SV53 )
                          | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY255 )
                          | ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SV53 )
                                | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) )
                            | ~ ( ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY255 )
                                | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) ) ) )
                  | ( SY256
                    = ( set_difference @ SV53 @ SY255 ) ) )
            | ~ ! [SY257: $i,SY258: $i] :
                  ( ( SY258
                   != ( set_difference @ SV53 @ SY257 ) )
                  | ~ ( ~ ! [SY259: $i] :
                            ( ~ ( in @ SY259 @ SV53 )
                            | ( in @ SY259 @ SY257 )
                            | ( in @ SY259 @ SY258 ) )
                      | ~ ~ ( ~ ! [SY260: $i] :
                                  ( ~ ( in @ SY260 @ SY258 )
                                  | ( in @ SY260 @ SV53 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY258 )
                                  | ~ ( in @ SX3 @ SY257 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[353]) ).

thf(432,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ ( sK9_SY187 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK9_SY187 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( union @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ! [SX3: $i] :
                          ( ~ ( in @ SX2 @ SX3 )
                          | ~ ( in @ SX3 @ SX0 ) )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ~ ( ~ ( in @ SX2 @ ( sK7_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[354]) ).

thf(433,plain,
    ! [SV54: $i] :
      ( ( ~ ( ~ ! [SY262: $i,SY263: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                                | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                                 != SV54 ) )
                            | ~ ( ~ ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                                | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                                 != SY262 ) ) )
                      | ~ ( ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                          | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                            = SV54 )
                          | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                            = SY262 ) ) )
                  | ( SY263
                    = ( unordered_pair @ SV54 @ SY262 ) ) )
            | ~ ! [SY264: $i,SY265: $i] :
                  ( ( SY265
                   != ( unordered_pair @ SV54 @ SY264 ) )
                  | ~ ( ~ ! [SY266: $i] :
                            ( ~ ( in @ SY266 @ SY265 )
                            | ( SY266 = SV54 )
                            | ( SY266 = SY264 ) )
                      | ~ ~ ( ~ ! [SY267: $i] :
                                  ( ( SY267 != SV54 )
                                  | ( in @ SY267 @ SY265 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY264 )
                                  | ( in @ SX3 @ SY265 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[355]) ).

thf(434,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[356]) ).

thf(435,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[357]) ).

thf(436,plain,
    ! [SV55: $i] :
      ( ( ~ ( ~ ! [SY269: $i,SY270: $i] :
                  ( ~ ( ~ ( ! [SY271: $i,SY272: $i] :
                              ( ~ ( in @ SY271 @ SV55 )
                              | ~ ( in @ SY272 @ SY269 )
                              | ( ( sK14_D @ SY270 @ SY269 @ SV55 )
                               != ( ordered_pair @ SY271 @ SY272 ) ) )
                          | ~ ( in @ ( sK14_D @ SY270 @ SY269 @ SV55 ) @ SY270 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SY270 @ SY269 @ SV55 ) @ SV55 )
                                    | ~ ( in @ ( sK16_SY193 @ SY270 @ SY269 @ SV55 ) @ SY269 ) )
                              | ( ( sK14_D @ SY270 @ SY269 @ SV55 )
                               != ( ordered_pair @ ( sK15_SY191 @ SY270 @ SY269 @ SV55 ) @ ( sK16_SY193 @ SY270 @ SY269 @ SV55 ) ) ) )
                          | ( in @ ( sK14_D @ SY270 @ SY269 @ SV55 ) @ SY270 ) ) )
                  | ( SY270
                    = ( cartesian_product2 @ SV55 @ SY269 ) ) )
            | ~ ! [SY273: $i,SY274: $i] :
                  ( ( SY274
                   != ( cartesian_product2 @ SV55 @ SY273 ) )
                  | ~ ( ~ ! [SY275: $i] :
                            ( ! [SY276: $i,SY277: $i] :
                                ( ~ ( in @ SY276 @ SV55 )
                                | ~ ( in @ SY277 @ SY273 )
                                | ( SY275
                                 != ( ordered_pair @ SY276 @ SY277 ) ) )
                            | ( in @ SY275 @ SY274 ) )
                      | ~ ! [SY278: $i] :
                            ( ~ ( in @ SY278 @ SY274 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY278 @ SY274 @ SY273 @ SV55 ) @ SV55 )
                                      | ~ ( in @ ( sK13_SY188 @ SY278 @ SY274 @ SY273 @ SV55 ) @ SY273 ) )
                                | ( SY278
                                 != ( ordered_pair @ ( sK12_E @ SY278 @ SY274 @ SY273 @ SV55 ) @ ( sK13_SY188 @ SY278 @ SY274 @ SY273 @ SV55 ) ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[358]) ).

thf(437,plain,
    ! [SV56: $i] :
      ( ( ! [SY279: $i] :
            ~ ( ~ ! [SY280: $i] :
                    ( ! [SY281: $i] :
                        ( ( ordered_pair @ SV56 @ SY279 )
                       != ( ordered_pair @ SY280 @ SY281 ) )
                    | ( SV56 = SY280 ) )
              | ~ ! [SY282: $i,SY283: $i] :
                    ( ( ( ordered_pair @ SV56 @ SY279 )
                     != ( ordered_pair @ SY282 @ SY283 ) )
                    | ( SY279 = SY283 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[359]) ).

thf(438,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[360]) ).

thf(439,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) )
      | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( SX0 != SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( subset @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[361]) ).

thf(440,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[362]) ).

thf(441,plain,
    ! [SV57: $i] :
      ( ( ! [SY284: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SY284 @ SV57 ) @ SV57 )
                    | ~ ( in @ ( sK3_C @ SY284 @ SV57 ) @ SY284 ) )
                | ~ ( ( in @ ( sK3_C @ SY284 @ SV57 ) @ SV57 )
                    | ( in @ ( sK3_C @ SY284 @ SV57 ) @ SY284 ) ) )
            | ( SV57 = SY284 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[363]) ).

thf(442,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) )
      | ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX0 @ SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[364]) ).

thf(443,plain,
    ! [SV58: $i] :
      ( ( ~ ( ~ ! [SY285: $i,SY286: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SV58 )
                          | ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY285 )
                          | ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SV58 )
                                | ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                            | ~ ( ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY285 )
                                | ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) ) ) )
                  | ( SY286
                    = ( set_intersection2 @ SV58 @ SY285 ) ) )
            | ~ ! [SY287: $i,SY288: $i] :
                  ( ( SY288
                   != ( set_intersection2 @ SV58 @ SY287 ) )
                  | ~ ( ~ ! [SY289: $i] :
                            ( ~ ( in @ SY289 @ SV58 )
                            | ~ ( in @ SY289 @ SY287 )
                            | ( in @ SY289 @ SY288 ) )
                      | ~ ~ ( ~ ! [SY290: $i] :
                                  ( ~ ( in @ SY290 @ SY288 )
                                  | ( in @ SY290 @ SV58 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY288 )
                                  | ( in @ SX3 @ SY287 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[365]) ).

thf(444,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[366]) ).

thf(445,plain,
    ! [SV59: $i] :
      ( ( ~ ( ~ ! [SY292: $i,SY293: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                                | ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SV59 ) )
                            | ~ ( ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                                | ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY292 ) ) )
                      | ~ ( ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                          | ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SV59 )
                          | ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY292 ) ) )
                  | ( SY293
                    = ( set_union2 @ SV59 @ SY292 ) ) )
            | ~ ! [SY294: $i,SY295: $i] :
                  ( ( SY295
                   != ( set_union2 @ SV59 @ SY294 ) )
                  | ~ ( ~ ! [SY296: $i] :
                            ( ~ ( in @ SY296 @ SY295 )
                            | ( in @ SY296 @ SV59 )
                            | ( in @ SY296 @ SY294 ) )
                      | ~ ~ ( ~ ! [SY297: $i] :
                                  ( ~ ( in @ SY297 @ SV59 )
                                  | ( in @ SY297 @ SY295 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY294 )
                                  | ( in @ SX3 @ SY295 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[367]) ).

thf(446,plain,
    ! [SV1: $i] :
      ( ( ( singleton @ SV1 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[368]) ).

thf(447,plain,
    ! [SV60: $i,SV2: $i] :
      ( ( ~ ( in @ SV2 @ SV60 )
        | ( ( set_union2 @ ( singleton @ SV2 ) @ SV60 )
          = SV60 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[369]) ).

thf(448,plain,
    ! [SV61: $i,SV3: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV3 ) @ SV61 )
        | ~ ( in @ SV3 @ SV61 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[370]) ).

thf(449,plain,
    ! [SV62: $i,SV4: $i] :
      ( ( ( in @ SV4 @ SV62 )
        | ( disjoint @ ( singleton @ SV4 ) @ SV62 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[371]) ).

thf(450,plain,
    ! [SV63: $i,SV5: $i] :
      ( ( ~ ( subset @ SV5 @ SV63 )
        | ! [SY299: $i] :
            ( ( in @ SY299 @ SV5 )
            | ( subset @ SV5 @ ( set_difference @ SV63 @ ( singleton @ SY299 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[372]) ).

thf(451,plain,
    ! [SV64: $i,SV6: $i] :
      ( ( ~ ( in @ SV6 @ SV64 )
        | ( subset @ SV6 @ ( union @ SV64 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[373]) ).

thf(452,plain,
    ! [SV65: $i,SV7: $i] :
      ( ( ! [SY300: $i,SY301: $i] :
            ( ( SV7 = SY301 )
            | ( SV7 = SY300 )
            | ( ( unordered_pair @ SV7 @ SV65 )
             != ( unordered_pair @ SY300 @ SY301 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[374]) ).

thf(453,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ~ ( subset @ SV8 @ SV66 )
        | ( ( set_union2 @ SV8 @ SV66 )
          = SV66 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[375]) ).

thf(454,plain,
    ! [SV67: $i,SV9: $i] :
      ( ( subset @ ( set_intersection2 @ SV9 @ SV67 ) @ SV9 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[376]) ).

thf(455,plain,
    ! [SV68: $i,SV10: $i] :
      ( ( ! [SY302: $i] :
            ( ~ ( subset @ SV10 @ SV68 )
            | ~ ( subset @ SV10 @ SY302 )
            | ( subset @ SV10 @ ( set_intersection2 @ SV68 @ SY302 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[377]) ).

thf(456,plain,
    ! [SV69: $i,SV11: $i] :
      ( ( ! [SY303: $i] :
            ( ~ ( subset @ SV11 @ SV69 )
            | ~ ( subset @ SV69 @ SY303 )
            | ( subset @ SV11 @ SY303 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[378]) ).

thf(457,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ~ ( subset @ SV12 @ SV70 )
        | ! [SY304: $i] : ( subset @ ( set_intersection2 @ SV12 @ SY304 ) @ ( set_intersection2 @ SV70 @ SY304 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[379]) ).

thf(458,plain,
    ! [SV71: $i,SV13: $i] :
      ( ( ~ ( subset @ SV13 @ SV71 )
        | ( ( set_intersection2 @ SV13 @ SV71 )
          = SV13 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[380]) ).

thf(459,plain,
    ! [SV72: $i,SV15: $i] :
      ( ( ~ ( subset @ SV15 @ SV72 )
        | ! [SY305: $i] : ( subset @ ( set_difference @ SV15 @ SY305 ) @ ( set_difference @ SV72 @ SY305 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[382]) ).

thf(460,plain,
    ! [SV73: $i,SV16: $i] :
      ( ( subset @ ( set_difference @ SV16 @ SV73 ) @ SV16 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[383]) ).

thf(461,plain,
    ! [SV74: $i,SV17: $i] :
      ( ( ( set_union2 @ SV17 @ ( set_difference @ SV74 @ SV17 ) )
        = ( set_union2 @ SV17 @ SV74 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[384]) ).

thf(462,plain,
    ! [SV18: $i] :
      ( ( ( ~ ( subset @ SV18 @ empty_set ) )
        = $true )
      | ( ( SV18 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[385]) ).

thf(463,plain,
    ! [SV75: $i,SV19: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV19 @ SV75 ) @ SV75 )
        = ( set_difference @ SV19 @ SV75 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[386]) ).

thf(464,plain,
    ! [SV76: $i,SV20: $i] :
      ( ( ~ ( subset @ SV20 @ SV76 )
        | ( SV76
          = ( set_union2 @ SV20 @ ( set_difference @ SV76 @ SV20 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[387]) ).

thf(465,plain,
    ! [SV77: $i,SV21: $i] :
      ( ( ( set_difference @ SV21 @ ( set_difference @ SV21 @ SV77 ) )
        = ( set_intersection2 @ SV21 @ SV77 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[388]) ).

thf(466,plain,
    ! [SV22: $i,SV78: $i] :
      ( ( ~ ( proper_subset @ SV78 @ SV22 )
        | ~ ( subset @ SV22 @ SV78 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[389]) ).

thf(467,plain,
    ! [SV23: $i,SV79: $i] :
      ( ( ! [SY306: $i] :
            ( ~ ( disjoint @ SV79 @ SY306 )
            | ~ ( subset @ SV23 @ SV79 )
            | ( disjoint @ SV23 @ SY306 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[390]) ).

thf(468,plain,
    ! [SV80: $i,SV25: $i] :
      ( ( ~ ( subset @ ( singleton @ SV25 ) @ ( singleton @ SV80 ) )
        | ( SV25 = SV80 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[392]) ).

thf(469,plain,
    ! [SV81: $i,SV26: $i] :
      ( ( subset @ SV26 @ ( set_union2 @ SV26 @ SV81 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[393]) ).

thf(470,plain,
    ! [SV82: $i,SV27: $i] :
      ( ( ! [SY307: $i] :
            ( ~ ( subset @ SV27 @ SV82 )
            | ~ ( subset @ SY307 @ SV82 )
            | ( subset @ ( set_union2 @ SV27 @ SY307 ) @ SV82 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[394]) ).

thf(471,plain,
    ! [SV83: $i,SV28: $i] :
      ( ( ! [SY308: $i] :
            ( ( singleton @ SV28 )
           != ( unordered_pair @ SV83 @ SY308 ) )
        | ( SV28 = SV83 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[395]) ).

thf(472,plain,
    ! [SV84: $i,SV29: $i] :
      ( ( ! [SY309: $i] :
            ( ( ( singleton @ SV29 )
             != ( unordered_pair @ SV84 @ SY309 ) )
            | ( SV84 = SY309 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[396]) ).

thf(473,plain,
    ! [SV85: $i,SV30: $i] :
      ( ( ~ ( in @ SV30 @ SV85 )
        | ~ ( in @ SV85 @ SV30 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[397]) ).

thf(474,plain,
    ! [SV86: $i,SV31: $i] :
      ( ( ~ ( proper_subset @ SV31 @ SV86 )
        | ~ ( proper_subset @ SV86 @ SV31 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[398]) ).

thf(475,plain,
    ! [SV87: $i,SV32: $i] :
      ( ( ( unordered_pair @ SV32 @ SV87 )
        = ( unordered_pair @ SV87 @ SV32 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[399]) ).

thf(476,plain,
    ! [SV88: $i,SV33: $i] :
      ( ( ( set_union2 @ SV33 @ SV88 )
        = ( set_union2 @ SV88 @ SV33 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[400]) ).

thf(477,plain,
    ! [SV89: $i,SV34: $i] :
      ( ( ( set_intersection2 @ SV34 @ SV89 )
        = ( set_intersection2 @ SV89 @ SV34 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[401]) ).

thf(478,plain,
    ! [SV90: $i,SV35: $i] :
      ( ( ( ordered_pair @ SV35 @ SV90 )
        = ( unordered_pair @ ( unordered_pair @ SV35 @ SV90 ) @ ( singleton @ SV35 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[402]) ).

thf(479,plain,
    ! [SV91: $i,SV36: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV36 @ SV91 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[403]) ).

thf(480,plain,
    ! [SV37: $i] :
      ( ( ( empty @ SV37 )
        = $true )
      | ( ( ! [SY237: $i] :
              ~ ( empty @ ( set_union2 @ SV37 @ SY237 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[404]) ).

thf(481,plain,
    ! [SV38: $i] :
      ( ( ( empty @ SV38 )
        = $true )
      | ( ( ! [SY238: $i] :
              ~ ( empty @ ( set_union2 @ SY238 @ SV38 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[405]) ).

thf(482,plain,
    ! [SV41: $i] :
      ( ( proper_subset @ SV41 @ SV41 )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[408]) ).

thf(483,plain,
    ! [SV92: $i,SV43: $i] :
      ( ( ~ ( disjoint @ SV43 @ SV92 )
        | ( disjoint @ SV92 @ SV43 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[411]) ).

thf(484,plain,
    ! [SV48: $i] :
      ( ( ( ~ ( empty @ SV48 ) )
        = $true )
      | ( ( SV48 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[416]) ).

thf(485,plain,
    ! [SV49: $i,SV93: $i] :
      ( ( ~ ( empty @ SV93 )
        | ~ ( in @ SV49 @ SV93 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[417]) ).

thf(486,plain,
    ! [SV94: $i,SV50: $i] :
      ( ( ( SV50 = SV94 )
        | ~ ( empty @ SV50 )
        | ~ ( empty @ SV94 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[418]) ).

thf(487,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK22_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[420]) ).

thf(488,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[420]) ).

thf(489,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[421]) ).

thf(490,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[421]) ).

thf(491,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK19_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK19_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[422]) ).

thf(492,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( powerset @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( subset @ SX2 @ SX0 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( subset @ SX2 @ SX0 )
                      | ( in @ SX2 @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[422]) ).

thf(493,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[423]) ).

thf(494,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[423]) ).

thf(495,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK20_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[424]) ).

thf(496,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[424]) ).

thf(497,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[425]) ).

thf(498,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[425]) ).

thf(499,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[426]) ).

thf(500,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[426]) ).

thf(501,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[427]) ).

thf(502,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[427]) ).

thf(503,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK21_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK21_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[428]) ).

thf(504,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( singleton @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ( SX2 != SX0 )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ( SX2 = SX0 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[428]) ).

thf(505,plain,
    ! [SV51: $i] :
      ( ( ~ ! [SY242: $i,SY243: $i] :
              ( ~ ( in @ SV51 @ SY243 )
              | ~ ( in @ SY242 @ SY243 )
              | ( subset @ ( unordered_pair @ SV51 @ SY242 ) @ SY243 ) )
        | ~ ~ ( ~ ! [SY244: $i,SY245: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV51 @ SY244 ) @ SY245 )
                    | ( in @ SV51 @ SY245 ) )
              | ~ ! [SY246: $i,SY247: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV51 @ SY246 ) @ SY247 )
                    | ( in @ SY246 @ SY247 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[429]) ).

thf(506,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ~ ( ~ ! [SY310: $i,SY311: $i] :
                  ( ~ ( in @ SV52 @ SY310 )
                  | ~ ( in @ SV95 @ SY311 )
                  | ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY310 @ SY311 ) ) )
            | ~ ~ ( ~ ! [SY312: $i] :
                        ( ! [SY313: $i] :
                            ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY312 @ SY313 ) )
                        | ( in @ SV52 @ SY312 ) )
                  | ~ ! [SY314: $i,SY315: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY314 @ SY315 ) )
                        | ( in @ SV95 @ SY315 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[430]) ).

thf(507,plain,
    ! [SV53: $i] :
      ( ( ~ ! [SY255: $i,SY256: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SV53 )
                      | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY255 )
                      | ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SV53 )
                            | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY255 )
                            | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) ) ) )
              | ( SY256
                = ( set_difference @ SV53 @ SY255 ) ) )
        | ~ ! [SY257: $i,SY258: $i] :
              ( ( SY258
               != ( set_difference @ SV53 @ SY257 ) )
              | ~ ( ~ ! [SY259: $i] :
                        ( ~ ( in @ SY259 @ SV53 )
                        | ( in @ SY259 @ SY257 )
                        | ( in @ SY259 @ SY258 ) )
                  | ~ ~ ( ~ ! [SY260: $i] :
                              ( ~ ( in @ SY260 @ SY258 )
                              | ( in @ SY260 @ SV53 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY258 )
                              | ~ ( in @ SX3 @ SY257 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[431]) ).

thf(508,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ ( sK9_SY187 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK9_SY187 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[432]) ).

thf(509,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1
             != ( union @ SX0 ) )
            | ~ ( ~ ! [SX2: $i] :
                      ( ! [SX3: $i] :
                          ( ~ ( in @ SX2 @ SX3 )
                          | ~ ( in @ SX3 @ SX0 ) )
                      | ( in @ SX2 @ SX1 ) )
                | ~ ! [SX2: $i] :
                      ( ~ ( in @ SX2 @ SX1 )
                      | ~ ( ~ ( in @ SX2 @ ( sK7_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[432]) ).

thf(510,plain,
    ! [SV54: $i] :
      ( ( ~ ! [SY262: $i,SY263: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                            | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                             != SV54 ) )
                        | ~ ( ~ ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                            | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                             != SY262 ) ) )
                  | ~ ( ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                      | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                        = SV54 )
                      | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                        = SY262 ) ) )
              | ( SY263
                = ( unordered_pair @ SV54 @ SY262 ) ) )
        | ~ ! [SY264: $i,SY265: $i] :
              ( ( SY265
               != ( unordered_pair @ SV54 @ SY264 ) )
              | ~ ( ~ ! [SY266: $i] :
                        ( ~ ( in @ SY266 @ SY265 )
                        | ( SY266 = SV54 )
                        | ( SY266 = SY264 ) )
                  | ~ ~ ( ~ ! [SY267: $i] :
                              ( ( SY267 != SV54 )
                              | ( in @ SY267 @ SY265 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY264 )
                              | ( in @ SX3 @ SY265 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[433]) ).

thf(511,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[434]) ).

thf(512,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[434]) ).

thf(513,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[435]) ).

thf(514,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[435]) ).

thf(515,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY269: $i,SY270: $i] :
              ( ~ ( ~ ( ! [SY271: $i,SY272: $i] :
                          ( ~ ( in @ SY271 @ SV55 )
                          | ~ ( in @ SY272 @ SY269 )
                          | ( ( sK14_D @ SY270 @ SY269 @ SV55 )
                           != ( ordered_pair @ SY271 @ SY272 ) ) )
                      | ~ ( in @ ( sK14_D @ SY270 @ SY269 @ SV55 ) @ SY270 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SY270 @ SY269 @ SV55 ) @ SV55 )
                                | ~ ( in @ ( sK16_SY193 @ SY270 @ SY269 @ SV55 ) @ SY269 ) )
                          | ( ( sK14_D @ SY270 @ SY269 @ SV55 )
                           != ( ordered_pair @ ( sK15_SY191 @ SY270 @ SY269 @ SV55 ) @ ( sK16_SY193 @ SY270 @ SY269 @ SV55 ) ) ) )
                      | ( in @ ( sK14_D @ SY270 @ SY269 @ SV55 ) @ SY270 ) ) )
              | ( SY270
                = ( cartesian_product2 @ SV55 @ SY269 ) ) )
        | ~ ! [SY273: $i,SY274: $i] :
              ( ( SY274
               != ( cartesian_product2 @ SV55 @ SY273 ) )
              | ~ ( ~ ! [SY275: $i] :
                        ( ! [SY276: $i,SY277: $i] :
                            ( ~ ( in @ SY276 @ SV55 )
                            | ~ ( in @ SY277 @ SY273 )
                            | ( SY275
                             != ( ordered_pair @ SY276 @ SY277 ) ) )
                        | ( in @ SY275 @ SY274 ) )
                  | ~ ! [SY278: $i] :
                        ( ~ ( in @ SY278 @ SY274 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY278 @ SY274 @ SY273 @ SV55 ) @ SV55 )
                                  | ~ ( in @ ( sK13_SY188 @ SY278 @ SY274 @ SY273 @ SV55 ) @ SY273 ) )
                            | ( SY278
                             != ( ordered_pair @ ( sK12_E @ SY278 @ SY274 @ SY273 @ SV55 ) @ ( sK13_SY188 @ SY278 @ SY274 @ SY273 @ SV55 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[436]) ).

thf(516,plain,
    ! [SV96: $i,SV56: $i] :
      ( ( ~ ( ~ ! [SY316: $i] :
                  ( ! [SY317: $i] :
                      ( ( ordered_pair @ SV56 @ SV96 )
                     != ( ordered_pair @ SY316 @ SY317 ) )
                  | ( SV56 = SY316 ) )
            | ~ ! [SY318: $i,SY319: $i] :
                  ( ( ( ordered_pair @ SV56 @ SV96 )
                   != ( ordered_pair @ SY318 @ SY319 ) )
                  | ( SV96 = SY319 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[437]) ).

thf(517,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[438]) ).

thf(518,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[438]) ).

thf(519,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[439]) ).

thf(520,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( SX0 != SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ~ ( proper_subset @ SX0 @ SX1 )
                  | ( subset @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[439]) ).

thf(521,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[440]) ).

thf(522,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0
                   != ( singleton @ SX1 ) )
                  | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[440]) ).

thf(523,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
                | ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) )
            | ~ ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
                | ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) ) )
        | ( SV57 = SV97 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[441]) ).

thf(524,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[442]) ).

thf(525,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX0 @ SX1 ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX0 != SX1 )
                  | ( subset @ SX1 @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[442]) ).

thf(526,plain,
    ! [SV58: $i] :
      ( ( ~ ! [SY285: $i,SY286: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SV58 )
                      | ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY285 )
                      | ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SV58 )
                            | ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                        | ~ ( ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY285 )
                            | ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) ) ) )
              | ( SY286
                = ( set_intersection2 @ SV58 @ SY285 ) ) )
        | ~ ! [SY287: $i,SY288: $i] :
              ( ( SY288
               != ( set_intersection2 @ SV58 @ SY287 ) )
              | ~ ( ~ ! [SY289: $i] :
                        ( ~ ( in @ SY289 @ SV58 )
                        | ~ ( in @ SY289 @ SY287 )
                        | ( in @ SY289 @ SY288 ) )
                  | ~ ~ ( ~ ! [SY290: $i] :
                              ( ~ ( in @ SY290 @ SY288 )
                              | ( in @ SY290 @ SV58 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY288 )
                              | ( in @ SX3 @ SY287 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[443]) ).

thf(527,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[444]) ).

thf(528,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[444]) ).

thf(529,plain,
    ! [SV59: $i] :
      ( ( ~ ! [SY292: $i,SY293: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                            | ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SV59 ) )
                        | ~ ( ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                            | ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY292 ) ) )
                  | ~ ( ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                      | ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SV59 )
                      | ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY292 ) ) )
              | ( SY293
                = ( set_union2 @ SV59 @ SY292 ) ) )
        | ~ ! [SY294: $i,SY295: $i] :
              ( ( SY295
               != ( set_union2 @ SV59 @ SY294 ) )
              | ~ ( ~ ! [SY296: $i] :
                        ( ~ ( in @ SY296 @ SY295 )
                        | ( in @ SY296 @ SV59 )
                        | ( in @ SY296 @ SY294 ) )
                  | ~ ~ ( ~ ! [SY297: $i] :
                              ( ~ ( in @ SY297 @ SV59 )
                              | ( in @ SY297 @ SY295 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY294 )
                              | ( in @ SX3 @ SY295 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[445]) ).

thf(530,plain,
    ! [SV60: $i,SV2: $i] :
      ( ( ( ~ ( in @ SV2 @ SV60 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV2 ) @ SV60 )
          = SV60 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[447]) ).

thf(531,plain,
    ! [SV61: $i,SV3: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV3 ) @ SV61 ) )
        = $true )
      | ( ( ~ ( in @ SV3 @ SV61 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[448]) ).

thf(532,plain,
    ! [SV62: $i,SV4: $i] :
      ( ( ( in @ SV4 @ SV62 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV4 ) @ SV62 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[449]) ).

thf(533,plain,
    ! [SV63: $i,SV5: $i] :
      ( ( ( ~ ( subset @ SV5 @ SV63 ) )
        = $true )
      | ( ( ! [SY299: $i] :
              ( ( in @ SY299 @ SV5 )
              | ( subset @ SV5 @ ( set_difference @ SV63 @ ( singleton @ SY299 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[450]) ).

thf(534,plain,
    ! [SV64: $i,SV6: $i] :
      ( ( ( ~ ( in @ SV6 @ SV64 ) )
        = $true )
      | ( ( subset @ SV6 @ ( union @ SV64 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[451]) ).

thf(535,plain,
    ! [SV65: $i,SV98: $i,SV7: $i] :
      ( ( ! [SY320: $i] :
            ( ( SV7 = SY320 )
            | ( SV7 = SV98 )
            | ( ( unordered_pair @ SV7 @ SV65 )
             != ( unordered_pair @ SV98 @ SY320 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[452]) ).

thf(536,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ( ~ ( subset @ SV8 @ SV66 ) )
        = $true )
      | ( ( ( set_union2 @ SV8 @ SV66 )
          = SV66 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[453]) ).

thf(537,plain,
    ! [SV99: $i,SV68: $i,SV10: $i] :
      ( ( ~ ( subset @ SV10 @ SV68 )
        | ~ ( subset @ SV10 @ SV99 )
        | ( subset @ SV10 @ ( set_intersection2 @ SV68 @ SV99 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[455]) ).

thf(538,plain,
    ! [SV100: $i,SV69: $i,SV11: $i] :
      ( ( ~ ( subset @ SV11 @ SV69 )
        | ~ ( subset @ SV69 @ SV100 )
        | ( subset @ SV11 @ SV100 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[456]) ).

thf(539,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( ~ ( subset @ SV12 @ SV70 ) )
        = $true )
      | ( ( ! [SY304: $i] : ( subset @ ( set_intersection2 @ SV12 @ SY304 ) @ ( set_intersection2 @ SV70 @ SY304 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[457]) ).

thf(540,plain,
    ! [SV71: $i,SV13: $i] :
      ( ( ( ~ ( subset @ SV13 @ SV71 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV13 @ SV71 )
          = SV13 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[458]) ).

thf(541,plain,
    ! [SV72: $i,SV15: $i] :
      ( ( ( ~ ( subset @ SV15 @ SV72 ) )
        = $true )
      | ( ( ! [SY305: $i] : ( subset @ ( set_difference @ SV15 @ SY305 ) @ ( set_difference @ SV72 @ SY305 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[459]) ).

thf(542,plain,
    ! [SV18: $i] :
      ( ( ( subset @ SV18 @ empty_set )
        = $false )
      | ( ( SV18 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[462]) ).

thf(543,plain,
    ! [SV76: $i,SV20: $i] :
      ( ( ( ~ ( subset @ SV20 @ SV76 ) )
        = $true )
      | ( ( SV76
          = ( set_union2 @ SV20 @ ( set_difference @ SV76 @ SV20 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[464]) ).

thf(544,plain,
    ! [SV22: $i,SV78: $i] :
      ( ( ( ~ ( proper_subset @ SV78 @ SV22 ) )
        = $true )
      | ( ( ~ ( subset @ SV22 @ SV78 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[466]) ).

thf(545,plain,
    ! [SV23: $i,SV101: $i,SV79: $i] :
      ( ( ~ ( disjoint @ SV79 @ SV101 )
        | ~ ( subset @ SV23 @ SV79 )
        | ( disjoint @ SV23 @ SV101 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[467]) ).

thf(546,plain,
    ! [SV80: $i,SV25: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV25 ) @ ( singleton @ SV80 ) ) )
        = $true )
      | ( ( SV25 = SV80 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[468]) ).

thf(547,plain,
    ! [SV102: $i,SV82: $i,SV27: $i] :
      ( ( ~ ( subset @ SV27 @ SV82 )
        | ~ ( subset @ SV102 @ SV82 )
        | ( subset @ ( set_union2 @ SV27 @ SV102 ) @ SV82 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[470]) ).

thf(548,plain,
    ! [SV83: $i,SV28: $i] :
      ( ( ( ! [SY308: $i] :
              ( ( singleton @ SV28 )
             != ( unordered_pair @ SV83 @ SY308 ) ) )
        = $true )
      | ( ( SV28 = SV83 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[471]) ).

thf(549,plain,
    ! [SV103: $i,SV84: $i,SV29: $i] :
      ( ( ( ( singleton @ SV29 )
         != ( unordered_pair @ SV84 @ SV103 ) )
        | ( SV84 = SV103 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[472]) ).

thf(550,plain,
    ! [SV85: $i,SV30: $i] :
      ( ( ( ~ ( in @ SV30 @ SV85 ) )
        = $true )
      | ( ( ~ ( in @ SV85 @ SV30 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[473]) ).

thf(551,plain,
    ! [SV86: $i,SV31: $i] :
      ( ( ( ~ ( proper_subset @ SV31 @ SV86 ) )
        = $true )
      | ( ( ~ ( proper_subset @ SV86 @ SV31 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[474]) ).

thf(552,plain,
    ! [SV91: $i,SV36: $i] :
      ( ( empty @ ( ordered_pair @ SV36 @ SV91 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[479]) ).

thf(553,plain,
    ! [SV104: $i,SV37: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV37 @ SV104 ) ) )
        = $true )
      | ( ( empty @ SV37 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[480]) ).

thf(554,plain,
    ! [SV38: $i,SV105: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV105 @ SV38 ) ) )
        = $true )
      | ( ( empty @ SV38 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[481]) ).

thf(555,plain,
    ! [SV92: $i,SV43: $i] :
      ( ( ( ~ ( disjoint @ SV43 @ SV92 ) )
        = $true )
      | ( ( disjoint @ SV92 @ SV43 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[483]) ).

thf(556,plain,
    ! [SV48: $i] :
      ( ( ( empty @ SV48 )
        = $false )
      | ( ( SV48 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[484]) ).

thf(557,plain,
    ! [SV49: $i,SV93: $i] :
      ( ( ( ~ ( empty @ SV93 ) )
        = $true )
      | ( ( ~ ( in @ SV49 @ SV93 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[485]) ).

thf(558,plain,
    ! [SV94: $i,SV50: $i] :
      ( ( ( ( SV50 = SV94 )
          | ~ ( empty @ SV50 ) )
        = $true )
      | ( ( ~ ( empty @ SV94 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[486]) ).

thf(559,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK22_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[487]) ).

thf(560,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[488]) ).

thf(561,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[489]) ).

thf(562,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[490]) ).

thf(563,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK19_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK19_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK19_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[491]) ).

thf(564,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1
           != ( powerset @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX1 )
                    | ( subset @ SX2 @ SX0 ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( subset @ SX2 @ SX0 )
                    | ( in @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[492]) ).

thf(565,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[493]) ).

thf(566,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[494]) ).

thf(567,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK20_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[495]) ).

thf(568,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[496]) ).

thf(569,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[497]) ).

thf(570,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[498]) ).

thf(571,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[499]) ).

thf(572,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[500]) ).

thf(573,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[501]) ).

thf(574,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[502]) ).

thf(575,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK21_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK21_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[503]) ).

thf(576,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1
           != ( singleton @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ( SX2 != SX0 )
                    | ( in @ SX2 @ SX1 ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX1 )
                    | ( SX2 = SX0 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[504]) ).

thf(577,plain,
    ! [SV51: $i] :
      ( ( ~ ! [SY242: $i,SY243: $i] :
              ( ~ ( in @ SV51 @ SY243 )
              | ~ ( in @ SY242 @ SY243 )
              | ( subset @ ( unordered_pair @ SV51 @ SY242 ) @ SY243 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[505]) ).

thf(578,plain,
    ! [SV51: $i] :
      ( ( ~ ~ ( ~ ! [SY244: $i,SY245: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV51 @ SY244 ) @ SY245 )
                    | ( in @ SV51 @ SY245 ) )
              | ~ ! [SY246: $i,SY247: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV51 @ SY246 ) @ SY247 )
                    | ( in @ SY246 @ SY247 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[505]) ).

thf(579,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ~ ! [SY310: $i,SY311: $i] :
              ( ~ ( in @ SV52 @ SY310 )
              | ~ ( in @ SV95 @ SY311 )
              | ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY310 @ SY311 ) ) )
        | ~ ~ ( ~ ! [SY312: $i] :
                    ( ! [SY313: $i] :
                        ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY312 @ SY313 ) )
                    | ( in @ SV52 @ SY312 ) )
              | ~ ! [SY314: $i,SY315: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY314 @ SY315 ) )
                    | ( in @ SV95 @ SY315 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[506]) ).

thf(580,plain,
    ! [SV53: $i] :
      ( ( ~ ! [SY255: $i,SY256: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SV53 )
                      | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY255 )
                      | ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SV53 )
                            | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY255 )
                            | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) ) ) )
              | ( SY256
                = ( set_difference @ SV53 @ SY255 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[507]) ).

thf(581,plain,
    ! [SV53: $i] :
      ( ( ~ ! [SY257: $i,SY258: $i] :
              ( ( SY258
               != ( set_difference @ SV53 @ SY257 ) )
              | ~ ( ~ ! [SY259: $i] :
                        ( ~ ( in @ SY259 @ SV53 )
                        | ( in @ SY259 @ SY257 )
                        | ( in @ SY259 @ SY258 ) )
                  | ~ ~ ( ~ ! [SY260: $i] :
                              ( ~ ( in @ SY260 @ SY258 )
                              | ( in @ SY260 @ SV53 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY258 )
                              | ~ ( in @ SX3 @ SY257 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[507]) ).

thf(582,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ! [SX2: $i] :
                      ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX2 )
                      | ~ ( in @ SX2 @ SX0 ) )
                  | ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ~ ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ ( sK9_SY187 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK9_SY187 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[508]) ).

thf(583,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1
           != ( union @ SX0 ) )
          | ~ ( ~ ! [SX2: $i] :
                    ( ! [SX3: $i] :
                        ( ~ ( in @ SX2 @ SX3 )
                        | ~ ( in @ SX3 @ SX0 ) )
                    | ( in @ SX2 @ SX1 ) )
              | ~ ! [SX2: $i] :
                    ( ~ ( in @ SX2 @ SX1 )
                    | ~ ( ~ ( in @ SX2 @ ( sK7_D @ SX2 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[509]) ).

thf(584,plain,
    ! [SV54: $i] :
      ( ( ~ ! [SY262: $i,SY263: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                            | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                             != SV54 ) )
                        | ~ ( ~ ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                            | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                             != SY262 ) ) )
                  | ~ ( ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                      | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                        = SV54 )
                      | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                        = SY262 ) ) )
              | ( SY263
                = ( unordered_pair @ SV54 @ SY262 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[510]) ).

thf(585,plain,
    ! [SV54: $i] :
      ( ( ~ ! [SY264: $i,SY265: $i] :
              ( ( SY265
               != ( unordered_pair @ SV54 @ SY264 ) )
              | ~ ( ~ ! [SY266: $i] :
                        ( ~ ( in @ SY266 @ SY265 )
                        | ( SY266 = SV54 )
                        | ( SY266 = SY264 ) )
                  | ~ ~ ( ~ ! [SY267: $i] :
                              ( ( SY267 != SV54 )
                              | ( in @ SY267 @ SY265 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY264 )
                              | ( in @ SX3 @ SY265 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[510]) ).

thf(586,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[511]) ).

thf(587,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0
                 != ( singleton @ SX1 ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[512]) ).

thf(588,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[513]) ).

thf(589,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[514]) ).

thf(590,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY269: $i,SY270: $i] :
              ( ~ ( ~ ( ! [SY271: $i,SY272: $i] :
                          ( ~ ( in @ SY271 @ SV55 )
                          | ~ ( in @ SY272 @ SY269 )
                          | ( ( sK14_D @ SY270 @ SY269 @ SV55 )
                           != ( ordered_pair @ SY271 @ SY272 ) ) )
                      | ~ ( in @ ( sK14_D @ SY270 @ SY269 @ SV55 ) @ SY270 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SY270 @ SY269 @ SV55 ) @ SV55 )
                                | ~ ( in @ ( sK16_SY193 @ SY270 @ SY269 @ SV55 ) @ SY269 ) )
                          | ( ( sK14_D @ SY270 @ SY269 @ SV55 )
                           != ( ordered_pair @ ( sK15_SY191 @ SY270 @ SY269 @ SV55 ) @ ( sK16_SY193 @ SY270 @ SY269 @ SV55 ) ) ) )
                      | ( in @ ( sK14_D @ SY270 @ SY269 @ SV55 ) @ SY270 ) ) )
              | ( SY270
                = ( cartesian_product2 @ SV55 @ SY269 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[515]) ).

thf(591,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY273: $i,SY274: $i] :
              ( ( SY274
               != ( cartesian_product2 @ SV55 @ SY273 ) )
              | ~ ( ~ ! [SY275: $i] :
                        ( ! [SY276: $i,SY277: $i] :
                            ( ~ ( in @ SY276 @ SV55 )
                            | ~ ( in @ SY277 @ SY273 )
                            | ( SY275
                             != ( ordered_pair @ SY276 @ SY277 ) ) )
                        | ( in @ SY275 @ SY274 ) )
                  | ~ ! [SY278: $i] :
                        ( ~ ( in @ SY278 @ SY274 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY278 @ SY274 @ SY273 @ SV55 ) @ SV55 )
                                  | ~ ( in @ ( sK13_SY188 @ SY278 @ SY274 @ SY273 @ SV55 ) @ SY273 ) )
                            | ( SY278
                             != ( ordered_pair @ ( sK12_E @ SY278 @ SY274 @ SY273 @ SV55 ) @ ( sK13_SY188 @ SY278 @ SY274 @ SY273 @ SV55 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[515]) ).

thf(592,plain,
    ! [SV96: $i,SV56: $i] :
      ( ( ~ ! [SY316: $i] :
              ( ! [SY317: $i] :
                  ( ( ordered_pair @ SV56 @ SV96 )
                 != ( ordered_pair @ SY316 @ SY317 ) )
              | ( SV56 = SY316 ) )
        | ~ ! [SY318: $i,SY319: $i] :
              ( ( ( ordered_pair @ SV56 @ SV96 )
               != ( ordered_pair @ SY318 @ SY319 ) )
              | ( SV96 = SY319 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[516]) ).

thf(593,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[517]) ).

thf(594,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[518]) ).

thf(595,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[519]) ).

thf(596,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( proper_subset @ SX0 @ SX1 )
                | ( SX0 != SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( proper_subset @ SX0 @ SX1 )
                | ( subset @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[520]) ).

thf(597,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[521]) ).

thf(598,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0
                 != ( singleton @ SX1 ) )
                | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[522]) ).

thf(599,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
                  | ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) )
              | ~ ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
                  | ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) ) ) )
        = $true )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[523]) ).

thf(600,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[524]) ).

thf(601,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0 != SX1 )
                | ( subset @ SX0 @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX0 != SX1 )
                | ( subset @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[525]) ).

thf(602,plain,
    ! [SV58: $i] :
      ( ( ~ ! [SY285: $i,SY286: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SV58 )
                      | ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY285 )
                      | ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SV58 )
                            | ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                        | ~ ( ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY285 )
                            | ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) ) ) )
              | ( SY286
                = ( set_intersection2 @ SV58 @ SY285 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[526]) ).

thf(603,plain,
    ! [SV58: $i] :
      ( ( ~ ! [SY287: $i,SY288: $i] :
              ( ( SY288
               != ( set_intersection2 @ SV58 @ SY287 ) )
              | ~ ( ~ ! [SY289: $i] :
                        ( ~ ( in @ SY289 @ SV58 )
                        | ~ ( in @ SY289 @ SY287 )
                        | ( in @ SY289 @ SY288 ) )
                  | ~ ~ ( ~ ! [SY290: $i] :
                              ( ~ ( in @ SY290 @ SY288 )
                              | ( in @ SY290 @ SV58 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY288 )
                              | ( in @ SX3 @ SY287 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[526]) ).

thf(604,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[527]) ).

thf(605,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[528]) ).

thf(606,plain,
    ! [SV59: $i] :
      ( ( ~ ! [SY292: $i,SY293: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                            | ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SV59 ) )
                        | ~ ( ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                            | ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY292 ) ) )
                  | ~ ( ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                      | ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SV59 )
                      | ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY292 ) ) )
              | ( SY293
                = ( set_union2 @ SV59 @ SY292 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[529]) ).

thf(607,plain,
    ! [SV59: $i] :
      ( ( ~ ! [SY294: $i,SY295: $i] :
              ( ( SY295
               != ( set_union2 @ SV59 @ SY294 ) )
              | ~ ( ~ ! [SY296: $i] :
                        ( ~ ( in @ SY296 @ SY295 )
                        | ( in @ SY296 @ SV59 )
                        | ( in @ SY296 @ SY294 ) )
                  | ~ ~ ( ~ ! [SY297: $i] :
                              ( ~ ( in @ SY297 @ SV59 )
                              | ( in @ SY297 @ SY295 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY294 )
                              | ( in @ SX3 @ SY295 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[529]) ).

thf(608,plain,
    ! [SV60: $i,SV2: $i] :
      ( ( ( in @ SV2 @ SV60 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV2 ) @ SV60 )
          = SV60 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[530]) ).

thf(609,plain,
    ! [SV61: $i,SV3: $i] :
      ( ( ( disjoint @ ( singleton @ SV3 ) @ SV61 )
        = $false )
      | ( ( ~ ( in @ SV3 @ SV61 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[531]) ).

thf(610,plain,
    ! [SV63: $i,SV5: $i] :
      ( ( ( subset @ SV5 @ SV63 )
        = $false )
      | ( ( ! [SY299: $i] :
              ( ( in @ SY299 @ SV5 )
              | ( subset @ SV5 @ ( set_difference @ SV63 @ ( singleton @ SY299 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[533]) ).

thf(611,plain,
    ! [SV64: $i,SV6: $i] :
      ( ( ( in @ SV6 @ SV64 )
        = $false )
      | ( ( subset @ SV6 @ ( union @ SV64 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[534]) ).

thf(612,plain,
    ! [SV65: $i,SV98: $i,SV106: $i,SV7: $i] :
      ( ( ( SV7 = SV106 )
        | ( SV7 = SV98 )
        | ( ( unordered_pair @ SV7 @ SV65 )
         != ( unordered_pair @ SV98 @ SV106 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[535]) ).

thf(613,plain,
    ! [SV66: $i,SV8: $i] :
      ( ( ( subset @ SV8 @ SV66 )
        = $false )
      | ( ( ( set_union2 @ SV8 @ SV66 )
          = SV66 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[536]) ).

thf(614,plain,
    ! [SV99: $i,SV68: $i,SV10: $i] :
      ( ( ( ~ ( subset @ SV10 @ SV68 )
          | ~ ( subset @ SV10 @ SV99 ) )
        = $true )
      | ( ( subset @ SV10 @ ( set_intersection2 @ SV68 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[537]) ).

thf(615,plain,
    ! [SV100: $i,SV69: $i,SV11: $i] :
      ( ( ( ~ ( subset @ SV11 @ SV69 )
          | ~ ( subset @ SV69 @ SV100 ) )
        = $true )
      | ( ( subset @ SV11 @ SV100 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[538]) ).

thf(616,plain,
    ! [SV70: $i,SV12: $i] :
      ( ( ( subset @ SV12 @ SV70 )
        = $false )
      | ( ( ! [SY304: $i] : ( subset @ ( set_intersection2 @ SV12 @ SY304 ) @ ( set_intersection2 @ SV70 @ SY304 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[539]) ).

thf(617,plain,
    ! [SV71: $i,SV13: $i] :
      ( ( ( subset @ SV13 @ SV71 )
        = $false )
      | ( ( ( set_intersection2 @ SV13 @ SV71 )
          = SV13 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[540]) ).

thf(618,plain,
    ! [SV72: $i,SV15: $i] :
      ( ( ( subset @ SV15 @ SV72 )
        = $false )
      | ( ( ! [SY305: $i] : ( subset @ ( set_difference @ SV15 @ SY305 ) @ ( set_difference @ SV72 @ SY305 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[541]) ).

thf(619,plain,
    ! [SV76: $i,SV20: $i] :
      ( ( ( subset @ SV20 @ SV76 )
        = $false )
      | ( ( SV76
          = ( set_union2 @ SV20 @ ( set_difference @ SV76 @ SV20 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[543]) ).

thf(620,plain,
    ! [SV22: $i,SV78: $i] :
      ( ( ( proper_subset @ SV78 @ SV22 )
        = $false )
      | ( ( ~ ( subset @ SV22 @ SV78 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[544]) ).

thf(621,plain,
    ! [SV23: $i,SV101: $i,SV79: $i] :
      ( ( ( ~ ( disjoint @ SV79 @ SV101 )
          | ~ ( subset @ SV23 @ SV79 ) )
        = $true )
      | ( ( disjoint @ SV23 @ SV101 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[545]) ).

thf(622,plain,
    ! [SV80: $i,SV25: $i] :
      ( ( ( subset @ ( singleton @ SV25 ) @ ( singleton @ SV80 ) )
        = $false )
      | ( ( SV25 = SV80 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[546]) ).

thf(623,plain,
    ! [SV102: $i,SV82: $i,SV27: $i] :
      ( ( ( ~ ( subset @ SV27 @ SV82 )
          | ~ ( subset @ SV102 @ SV82 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV27 @ SV102 ) @ SV82 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[547]) ).

thf(624,plain,
    ! [SV107: $i,SV83: $i,SV28: $i] :
      ( ( ( ( ( singleton @ SV28 )
           != ( unordered_pair @ SV83 @ SV107 ) ) )
        = $true )
      | ( ( SV28 = SV83 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[548]) ).

thf(625,plain,
    ! [SV103: $i,SV84: $i,SV29: $i] :
      ( ( ( ( ( singleton @ SV29 )
           != ( unordered_pair @ SV84 @ SV103 ) ) )
        = $true )
      | ( ( SV84 = SV103 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[549]) ).

thf(626,plain,
    ! [SV85: $i,SV30: $i] :
      ( ( ( in @ SV30 @ SV85 )
        = $false )
      | ( ( ~ ( in @ SV85 @ SV30 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[550]) ).

thf(627,plain,
    ! [SV86: $i,SV31: $i] :
      ( ( ( proper_subset @ SV31 @ SV86 )
        = $false )
      | ( ( ~ ( proper_subset @ SV86 @ SV31 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[551]) ).

thf(628,plain,
    ! [SV104: $i,SV37: $i] :
      ( ( ( empty @ ( set_union2 @ SV37 @ SV104 ) )
        = $false )
      | ( ( empty @ SV37 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[553]) ).

thf(629,plain,
    ! [SV38: $i,SV105: $i] :
      ( ( ( empty @ ( set_union2 @ SV105 @ SV38 ) )
        = $false )
      | ( ( empty @ SV38 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[554]) ).

thf(630,plain,
    ! [SV92: $i,SV43: $i] :
      ( ( ( disjoint @ SV43 @ SV92 )
        = $false )
      | ( ( disjoint @ SV92 @ SV43 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[555]) ).

thf(631,plain,
    ! [SV49: $i,SV93: $i] :
      ( ( ( empty @ SV93 )
        = $false )
      | ( ( ~ ( in @ SV49 @ SV93 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[557]) ).

thf(632,plain,
    ! [SV94: $i,SV50: $i] :
      ( ( ( SV50 = SV94 )
        = $true )
      | ( ( ~ ( empty @ SV50 ) )
        = $true )
      | ( ( ~ ( empty @ SV94 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[558]) ).

thf(633,plain,
    ! [SV108: $i] :
      ( ( ! [SY321: $i] :
            ( ( disjoint @ SV108 @ SY321 )
            | ( in @ ( sK22_C @ SY321 @ SV108 ) @ ( set_intersection2 @ SV108 @ SY321 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[559]) ).

thf(634,plain,
    ! [SV109: $i] :
      ( ( ! [SY322: $i] :
            ( ! [SY323: $i] :
                ~ ( in @ SY323 @ ( set_intersection2 @ SV109 @ SY322 ) )
            | ~ ( disjoint @ SV109 @ SY322 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[560]) ).

thf(635,plain,
    ! [SV110: $i] :
      ( ( ! [SY324: $i] :
            ( ( ( set_difference @ SV110 @ SY324 )
             != empty_set )
            | ( subset @ SV110 @ SY324 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[561]) ).

thf(636,plain,
    ! [SV111: $i] :
      ( ( ! [SY325: $i] :
            ( ~ ( subset @ SV111 @ SY325 )
            | ( ( set_difference @ SV111 @ SY325 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[562]) ).

thf(637,plain,
    ! [SV112: $i] :
      ( ( ! [SY326: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK19_C @ SY326 @ SV112 ) @ SY326 )
                    | ~ ( subset @ ( sK19_C @ SY326 @ SV112 ) @ SV112 ) )
                | ~ ( ( in @ ( sK19_C @ SY326 @ SV112 ) @ SY326 )
                    | ( subset @ ( sK19_C @ SY326 @ SV112 ) @ SV112 ) ) )
            | ( SY326
              = ( powerset @ SV112 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[563]) ).

thf(638,plain,
    ! [SV113: $i] :
      ( ( ! [SY327: $i] :
            ( ( SY327
             != ( powerset @ SV113 ) )
            | ~ ( ~ ! [SY328: $i] :
                      ( ~ ( in @ SY328 @ SY327 )
                      | ( subset @ SY328 @ SV113 ) )
                | ~ ! [SY329: $i] :
                      ( ~ ( subset @ SY329 @ SV113 )
                      | ( in @ SY329 @ SY327 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[564]) ).

thf(639,plain,
    ! [SV114: $i] :
      ( ( ! [SY330: $i] :
            ( ~ ( ~ ( in @ ( sK11_C @ SY330 @ SV114 ) @ SV114 )
                | ~ ~ ( in @ ( sK11_C @ SY330 @ SV114 ) @ SY330 ) )
            | ( subset @ SV114 @ SY330 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[565]) ).

thf(640,plain,
    ! [SV115: $i] :
      ( ( ! [SY331: $i] :
            ( ~ ( subset @ SV115 @ SY331 )
            | ! [SY332: $i] :
                ( ~ ( in @ SY332 @ SV115 )
                | ( in @ SY332 @ SY331 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[566]) ).

thf(641,plain,
    ! [SV116: $i] :
      ( ( ( in @ ( sK20_B @ SV116 ) @ SV116 )
        | ( SV116 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[567]) ).

thf(642,plain,
    ! [SV117: $i] :
      ( ( ( SV117 != empty_set )
        | ! [SY333: $i] :
            ~ ( in @ SY333 @ SV117 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[568]) ).

thf(643,plain,
    ! [SV118: $i] :
      ( ( ! [SY334: $i] :
            ( ( ( set_difference @ SV118 @ SY334 )
             != SV118 )
            | ( disjoint @ SV118 @ SY334 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[569]) ).

thf(644,plain,
    ! [SV119: $i] :
      ( ( ! [SY335: $i] :
            ( ~ ( disjoint @ SV119 @ SY335 )
            | ( ( set_difference @ SV119 @ SY335 )
              = SV119 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[570]) ).

thf(645,plain,
    ! [SV120: $i] :
      ( ( ! [SY336: $i] :
            ( ~ ( in @ SV120 @ SY336 )
            | ( subset @ ( singleton @ SV120 ) @ SY336 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[571]) ).

thf(646,plain,
    ! [SV121: $i] :
      ( ( ! [SY337: $i] :
            ( ~ ( subset @ ( singleton @ SV121 ) @ SY337 )
            | ( in @ SV121 @ SY337 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[572]) ).

thf(647,plain,
    ! [SV122: $i] :
      ( ( ! [SY338: $i] :
            ( ( ( set_intersection2 @ SV122 @ SY338 )
             != empty_set )
            | ( disjoint @ SV122 @ SY338 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[573]) ).

thf(648,plain,
    ! [SV123: $i] :
      ( ( ! [SY339: $i] :
            ( ~ ( disjoint @ SV123 @ SY339 )
            | ( ( set_intersection2 @ SV123 @ SY339 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[574]) ).

thf(649,plain,
    ! [SV124: $i] :
      ( ( ! [SY340: $i] :
            ( ~ ( ~ ( ( ( sK21_C @ SY340 @ SV124 )
                     != SV124 )
                    | ~ ( in @ ( sK21_C @ SY340 @ SV124 ) @ SY340 ) )
                | ~ ( ( ( sK21_C @ SY340 @ SV124 )
                      = SV124 )
                    | ( in @ ( sK21_C @ SY340 @ SV124 ) @ SY340 ) ) )
            | ( SY340
              = ( singleton @ SV124 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[575]) ).

thf(650,plain,
    ! [SV125: $i] :
      ( ( ! [SY341: $i] :
            ( ( SY341
             != ( singleton @ SV125 ) )
            | ~ ( ~ ! [SY342: $i] :
                      ( ( SY342 != SV125 )
                      | ( in @ SY342 @ SY341 ) )
                | ~ ! [SY343: $i] :
                      ( ~ ( in @ SY343 @ SY341 )
                      | ( SY343 = SV125 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[576]) ).

thf(651,plain,
    ! [SV51: $i] :
      ( ( ! [SY242: $i,SY243: $i] :
            ( ~ ( in @ SV51 @ SY243 )
            | ~ ( in @ SY242 @ SY243 )
            | ( subset @ ( unordered_pair @ SV51 @ SY242 ) @ SY243 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[577]) ).

thf(652,plain,
    ! [SV51: $i] :
      ( ( ~ ( ~ ! [SY244: $i,SY245: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV51 @ SY244 ) @ SY245 )
                  | ( in @ SV51 @ SY245 ) )
            | ~ ! [SY246: $i,SY247: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV51 @ SY246 ) @ SY247 )
                  | ( in @ SY246 @ SY247 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[578]) ).

thf(653,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ~ ! [SY310: $i,SY311: $i] :
              ( ~ ( in @ SV52 @ SY310 )
              | ~ ( in @ SV95 @ SY311 )
              | ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY310 @ SY311 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[579]) ).

thf(654,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ~ ~ ( ~ ! [SY312: $i] :
                    ( ! [SY313: $i] :
                        ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY312 @ SY313 ) )
                    | ( in @ SV52 @ SY312 ) )
              | ~ ! [SY314: $i,SY315: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY314 @ SY315 ) )
                    | ( in @ SV95 @ SY315 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[579]) ).

thf(655,plain,
    ! [SV53: $i] :
      ( ( ! [SY255: $i,SY256: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SV53 )
                    | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY255 )
                    | ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SV53 )
                          | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY255 )
                          | ( in @ ( sK6_D @ SY256 @ SY255 @ SV53 ) @ SY256 ) ) ) )
            | ( SY256
              = ( set_difference @ SV53 @ SY255 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[580]) ).

thf(656,plain,
    ! [SV53: $i] :
      ( ( ! [SY257: $i,SY258: $i] :
            ( ( SY258
             != ( set_difference @ SV53 @ SY257 ) )
            | ~ ( ~ ! [SY259: $i] :
                      ( ~ ( in @ SY259 @ SV53 )
                      | ( in @ SY259 @ SY257 )
                      | ( in @ SY259 @ SY258 ) )
                | ~ ~ ( ~ ! [SY260: $i] :
                            ( ~ ( in @ SY260 @ SY258 )
                            | ( in @ SY260 @ SV53 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY258 )
                            | ~ ( in @ SX3 @ SY257 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[581]) ).

thf(657,plain,
    ! [SV126: $i] :
      ( ( ! [SY344: $i] :
            ( ~ ( ~ ( ! [SY345: $i] :
                        ( ~ ( in @ ( sK8_C @ SY344 @ SV126 ) @ SY345 )
                        | ~ ( in @ SY345 @ SV126 ) )
                    | ~ ( in @ ( sK8_C @ SY344 @ SV126 ) @ SY344 ) )
                | ~ ( ~ ( ~ ( in @ ( sK8_C @ SY344 @ SV126 ) @ ( sK9_SY187 @ SY344 @ SV126 ) )
                        | ~ ( in @ ( sK9_SY187 @ SY344 @ SV126 ) @ SV126 ) )
                    | ( in @ ( sK8_C @ SY344 @ SV126 ) @ SY344 ) ) )
            | ( SY344
              = ( union @ SV126 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[582]) ).

thf(658,plain,
    ! [SV127: $i] :
      ( ( ! [SY346: $i] :
            ( ( SY346
             != ( union @ SV127 ) )
            | ~ ( ~ ! [SY347: $i] :
                      ( ! [SY348: $i] :
                          ( ~ ( in @ SY347 @ SY348 )
                          | ~ ( in @ SY348 @ SV127 ) )
                      | ( in @ SY347 @ SY346 ) )
                | ~ ! [SY349: $i] :
                      ( ~ ( in @ SY349 @ SY346 )
                      | ~ ( ~ ( in @ SY349 @ ( sK7_D @ SY349 @ SY346 @ SV127 ) )
                          | ~ ( in @ ( sK7_D @ SY349 @ SY346 @ SV127 ) @ SV127 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[583]) ).

thf(659,plain,
    ! [SV54: $i] :
      ( ( ! [SY262: $i,SY263: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                          | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                           != SV54 ) )
                      | ~ ( ~ ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                          | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                           != SY262 ) ) )
                | ~ ( ( in @ ( sK18_D @ SY263 @ SY262 @ SV54 ) @ SY263 )
                    | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                      = SV54 )
                    | ( ( sK18_D @ SY263 @ SY262 @ SV54 )
                      = SY262 ) ) )
            | ( SY263
              = ( unordered_pair @ SV54 @ SY262 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[584]) ).

thf(660,plain,
    ! [SV54: $i] :
      ( ( ! [SY264: $i,SY265: $i] :
            ( ( SY265
             != ( unordered_pair @ SV54 @ SY264 ) )
            | ~ ( ~ ! [SY266: $i] :
                      ( ~ ( in @ SY266 @ SY265 )
                      | ( SY266 = SV54 )
                      | ( SY266 = SY264 ) )
                | ~ ~ ( ~ ! [SY267: $i] :
                            ( ( SY267 != SV54 )
                            | ( in @ SY267 @ SY265 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY264 )
                            | ( in @ SX3 @ SY265 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[585]) ).

thf(661,plain,
    ! [SV128: $i] :
      ( ( ! [SY350: $i] :
            ( ~ ( subset @ SV128 @ ( singleton @ SY350 ) )
            | ( SV128 = empty_set )
            | ( SV128
              = ( singleton @ SY350 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[586]) ).

thf(662,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[587]) ).

thf(663,plain,
    ! [SV129: $i] :
      ( ( ! [SY351: $i] :
            ( ~ ( in @ SV129 @ SY351 )
            | ( subset @ ( singleton @ SV129 ) @ SY351 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[588]) ).

thf(664,plain,
    ! [SV130: $i] :
      ( ( ! [SY352: $i] :
            ( ~ ( subset @ ( singleton @ SV130 ) @ SY352 )
            | ( in @ SV130 @ SY352 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[589]) ).

thf(665,plain,
    ! [SV55: $i] :
      ( ( ! [SY269: $i,SY270: $i] :
            ( ~ ( ~ ( ! [SY271: $i,SY272: $i] :
                        ( ~ ( in @ SY271 @ SV55 )
                        | ~ ( in @ SY272 @ SY269 )
                        | ( ( sK14_D @ SY270 @ SY269 @ SV55 )
                         != ( ordered_pair @ SY271 @ SY272 ) ) )
                    | ~ ( in @ ( sK14_D @ SY270 @ SY269 @ SV55 ) @ SY270 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SY270 @ SY269 @ SV55 ) @ SV55 )
                              | ~ ( in @ ( sK16_SY193 @ SY270 @ SY269 @ SV55 ) @ SY269 ) )
                        | ( ( sK14_D @ SY270 @ SY269 @ SV55 )
                         != ( ordered_pair @ ( sK15_SY191 @ SY270 @ SY269 @ SV55 ) @ ( sK16_SY193 @ SY270 @ SY269 @ SV55 ) ) ) )
                    | ( in @ ( sK14_D @ SY270 @ SY269 @ SV55 ) @ SY270 ) ) )
            | ( SY270
              = ( cartesian_product2 @ SV55 @ SY269 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[590]) ).

thf(666,plain,
    ! [SV55: $i] :
      ( ( ! [SY273: $i,SY274: $i] :
            ( ( SY274
             != ( cartesian_product2 @ SV55 @ SY273 ) )
            | ~ ( ~ ! [SY275: $i] :
                      ( ! [SY276: $i,SY277: $i] :
                          ( ~ ( in @ SY276 @ SV55 )
                          | ~ ( in @ SY277 @ SY273 )
                          | ( SY275
                           != ( ordered_pair @ SY276 @ SY277 ) ) )
                      | ( in @ SY275 @ SY274 ) )
                | ~ ! [SY278: $i] :
                      ( ~ ( in @ SY278 @ SY274 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY278 @ SY274 @ SY273 @ SV55 ) @ SV55 )
                                | ~ ( in @ ( sK13_SY188 @ SY278 @ SY274 @ SY273 @ SV55 ) @ SY273 ) )
                          | ( SY278
                           != ( ordered_pair @ ( sK12_E @ SY278 @ SY274 @ SY273 @ SV55 ) @ ( sK13_SY188 @ SY278 @ SY274 @ SY273 @ SV55 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[591]) ).

thf(667,plain,
    ! [SV96: $i,SV56: $i] :
      ( ( ~ ! [SY316: $i] :
              ( ! [SY317: $i] :
                  ( ( ordered_pair @ SV56 @ SV96 )
                 != ( ordered_pair @ SY316 @ SY317 ) )
              | ( SV56 = SY316 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[592]) ).

thf(668,plain,
    ! [SV96: $i,SV56: $i] :
      ( ( ~ ! [SY318: $i,SY319: $i] :
              ( ( ( ordered_pair @ SV56 @ SV96 )
               != ( ordered_pair @ SY318 @ SY319 ) )
              | ( SV96 = SY319 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[592]) ).

thf(669,plain,
    ! [SV131: $i] :
      ( ( ! [SY353: $i] :
            ( ( disjoint @ SV131 @ SY353 )
            | ~ ( ~ ( in @ ( sK23_C @ SY353 @ SV131 ) @ SV131 )
                | ~ ( in @ ( sK23_C @ SY353 @ SV131 ) @ SY353 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[593]) ).

thf(670,plain,
    ! [SV132: $i] :
      ( ( ! [SY354: $i] :
            ( ! [SY355: $i] :
                ( ~ ( in @ SY355 @ SV132 )
                | ~ ( in @ SY355 @ SY354 ) )
            | ~ ( disjoint @ SV132 @ SY354 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[594]) ).

thf(671,plain,
    ! [SV133: $i] :
      ( ( ! [SY356: $i] :
            ( ( SV133 = SY356 )
            | ~ ( subset @ SV133 @ SY356 )
            | ( proper_subset @ SV133 @ SY356 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[595]) ).

thf(672,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[596]) ).

thf(673,plain,
    ! [SV134: $i] :
      ( ( ! [SY357: $i] :
            ( ~ ( subset @ SV134 @ ( singleton @ SY357 ) )
            | ( SV134 = empty_set )
            | ( SV134
              = ( singleton @ SY357 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[597]) ).

thf(674,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[598]) ).

thf(675,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
              | ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) )
          | ~ ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
              | ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) ) )
        = $false )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[599]) ).

thf(676,plain,
    ! [SV135: $i] :
      ( ( ! [SY358: $i] :
            ( ~ ( subset @ SV135 @ SY358 )
            | ~ ( subset @ SY358 @ SV135 )
            | ( SV135 = SY358 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[600]) ).

thf(677,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[601]) ).

thf(678,plain,
    ! [SV58: $i] :
      ( ( ! [SY285: $i,SY286: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SV58 )
                    | ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY285 )
                    | ~ ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                | ~ ~ ( ~ ( ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SV58 )
                          | ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                      | ~ ( ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY285 )
                          | ( in @ ( sK10_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) ) ) )
            | ( SY286
              = ( set_intersection2 @ SV58 @ SY285 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[602]) ).

thf(679,plain,
    ! [SV58: $i] :
      ( ( ! [SY287: $i,SY288: $i] :
            ( ( SY288
             != ( set_intersection2 @ SV58 @ SY287 ) )
            | ~ ( ~ ! [SY289: $i] :
                      ( ~ ( in @ SY289 @ SV58 )
                      | ~ ( in @ SY289 @ SY287 )
                      | ( in @ SY289 @ SY288 ) )
                | ~ ~ ( ~ ! [SY290: $i] :
                            ( ~ ( in @ SY290 @ SY288 )
                            | ( in @ SY290 @ SV58 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY288 )
                            | ( in @ SX3 @ SY287 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[603]) ).

thf(680,plain,
    ! [SV136: $i] :
      ( ( ! [SY359: $i] :
            ( ( ( set_difference @ SV136 @ SY359 )
             != empty_set )
            | ( subset @ SV136 @ SY359 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[604]) ).

thf(681,plain,
    ! [SV137: $i] :
      ( ( ! [SY360: $i] :
            ( ~ ( subset @ SV137 @ SY360 )
            | ( ( set_difference @ SV137 @ SY360 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[605]) ).

thf(682,plain,
    ! [SV59: $i] :
      ( ( ! [SY292: $i,SY293: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                          | ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SV59 ) )
                      | ~ ( ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                          | ~ ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY292 ) ) )
                | ~ ( ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY293 )
                    | ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SV59 )
                    | ( in @ ( sK17_D @ SY293 @ SY292 @ SV59 ) @ SY292 ) ) )
            | ( SY293
              = ( set_union2 @ SV59 @ SY292 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[606]) ).

thf(683,plain,
    ! [SV59: $i] :
      ( ( ! [SY294: $i,SY295: $i] :
            ( ( SY295
             != ( set_union2 @ SV59 @ SY294 ) )
            | ~ ( ~ ! [SY296: $i] :
                      ( ~ ( in @ SY296 @ SY295 )
                      | ( in @ SY296 @ SV59 )
                      | ( in @ SY296 @ SY294 ) )
                | ~ ~ ( ~ ! [SY297: $i] :
                            ( ~ ( in @ SY297 @ SV59 )
                            | ( in @ SY297 @ SY295 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY294 )
                            | ( in @ SX3 @ SY295 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[607]) ).

thf(684,plain,
    ! [SV61: $i,SV3: $i] :
      ( ( ( in @ SV3 @ SV61 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV3 ) @ SV61 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[609]) ).

thf(685,plain,
    ! [SV63: $i,SV5: $i,SV138: $i] :
      ( ( ( ( in @ SV138 @ SV5 )
          | ( subset @ SV5 @ ( set_difference @ SV63 @ ( singleton @ SV138 ) ) ) )
        = $true )
      | ( ( subset @ SV5 @ SV63 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[610]) ).

thf(686,plain,
    ! [SV65: $i,SV98: $i,SV106: $i,SV7: $i] :
      ( ( ( SV7 = SV106 )
        = $true )
      | ( ( ( SV7 = SV98 )
          | ( ( unordered_pair @ SV7 @ SV65 )
           != ( unordered_pair @ SV98 @ SV106 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[612]) ).

thf(687,plain,
    ! [SV99: $i,SV68: $i,SV10: $i] :
      ( ( ( ~ ( subset @ SV10 @ SV68 ) )
        = $true )
      | ( ( ~ ( subset @ SV10 @ SV99 ) )
        = $true )
      | ( ( subset @ SV10 @ ( set_intersection2 @ SV68 @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[614]) ).

thf(688,plain,
    ! [SV100: $i,SV69: $i,SV11: $i] :
      ( ( ( ~ ( subset @ SV11 @ SV69 ) )
        = $true )
      | ( ( ~ ( subset @ SV69 @ SV100 ) )
        = $true )
      | ( ( subset @ SV11 @ SV100 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[615]) ).

thf(689,plain,
    ! [SV70: $i,SV139: $i,SV12: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV12 @ SV139 ) @ ( set_intersection2 @ SV70 @ SV139 ) )
        = $true )
      | ( ( subset @ SV12 @ SV70 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[616]) ).

thf(690,plain,
    ! [SV72: $i,SV140: $i,SV15: $i] :
      ( ( ( subset @ ( set_difference @ SV15 @ SV140 ) @ ( set_difference @ SV72 @ SV140 ) )
        = $true )
      | ( ( subset @ SV15 @ SV72 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[618]) ).

thf(691,plain,
    ! [SV78: $i,SV22: $i] :
      ( ( ( subset @ SV22 @ SV78 )
        = $false )
      | ( ( proper_subset @ SV78 @ SV22 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[620]) ).

thf(692,plain,
    ! [SV23: $i,SV101: $i,SV79: $i] :
      ( ( ( ~ ( disjoint @ SV79 @ SV101 ) )
        = $true )
      | ( ( ~ ( subset @ SV23 @ SV79 ) )
        = $true )
      | ( ( disjoint @ SV23 @ SV101 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[621]) ).

thf(693,plain,
    ! [SV102: $i,SV82: $i,SV27: $i] :
      ( ( ( ~ ( subset @ SV27 @ SV82 ) )
        = $true )
      | ( ( ~ ( subset @ SV102 @ SV82 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV27 @ SV102 ) @ SV82 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[623]) ).

thf(694,plain,
    ! [SV107: $i,SV83: $i,SV28: $i] :
      ( ( ( ( singleton @ SV28 )
          = ( unordered_pair @ SV83 @ SV107 ) )
        = $false )
      | ( ( SV28 = SV83 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[624]) ).

thf(695,plain,
    ! [SV103: $i,SV84: $i,SV29: $i] :
      ( ( ( ( singleton @ SV29 )
          = ( unordered_pair @ SV84 @ SV103 ) )
        = $false )
      | ( ( SV84 = SV103 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[625]) ).

thf(696,plain,
    ! [SV30: $i,SV85: $i] :
      ( ( ( in @ SV85 @ SV30 )
        = $false )
      | ( ( in @ SV30 @ SV85 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[626]) ).

thf(697,plain,
    ! [SV31: $i,SV86: $i] :
      ( ( ( proper_subset @ SV86 @ SV31 )
        = $false )
      | ( ( proper_subset @ SV31 @ SV86 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[627]) ).

thf(698,plain,
    ! [SV93: $i,SV49: $i] :
      ( ( ( in @ SV49 @ SV93 )
        = $false )
      | ( ( empty @ SV93 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[631]) ).

thf(699,plain,
    ! [SV94: $i,SV50: $i] :
      ( ( ( empty @ SV50 )
        = $false )
      | ( ( SV50 = SV94 )
        = $true )
      | ( ( ~ ( empty @ SV94 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[632]) ).

thf(700,plain,
    ! [SV141: $i,SV108: $i] :
      ( ( ( disjoint @ SV108 @ SV141 )
        | ( in @ ( sK22_C @ SV141 @ SV108 ) @ ( set_intersection2 @ SV108 @ SV141 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[633]) ).

thf(701,plain,
    ! [SV142: $i,SV109: $i] :
      ( ( ! [SY361: $i] :
            ~ ( in @ SY361 @ ( set_intersection2 @ SV109 @ SV142 ) )
        | ~ ( disjoint @ SV109 @ SV142 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[634]) ).

thf(702,plain,
    ! [SV143: $i,SV110: $i] :
      ( ( ( ( set_difference @ SV110 @ SV143 )
         != empty_set )
        | ( subset @ SV110 @ SV143 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[635]) ).

thf(703,plain,
    ! [SV144: $i,SV111: $i] :
      ( ( ~ ( subset @ SV111 @ SV144 )
        | ( ( set_difference @ SV111 @ SV144 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[636]) ).

thf(704,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
                | ~ ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) )
            | ~ ( ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
                | ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) ) )
        | ( SV145
          = ( powerset @ SV112 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[637]) ).

thf(705,plain,
    ! [SV113: $i,SV146: $i] :
      ( ( ( SV146
         != ( powerset @ SV113 ) )
        | ~ ( ~ ! [SY362: $i] :
                  ( ~ ( in @ SY362 @ SV146 )
                  | ( subset @ SY362 @ SV113 ) )
            | ~ ! [SY363: $i] :
                  ( ~ ( subset @ SY363 @ SV113 )
                  | ( in @ SY363 @ SV146 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[638]) ).

thf(706,plain,
    ! [SV114: $i,SV147: $i] :
      ( ( ~ ( ~ ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV114 )
            | ~ ~ ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV147 ) )
        | ( subset @ SV114 @ SV147 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[639]) ).

thf(707,plain,
    ! [SV148: $i,SV115: $i] :
      ( ( ~ ( subset @ SV115 @ SV148 )
        | ! [SY364: $i] :
            ( ~ ( in @ SY364 @ SV115 )
            | ( in @ SY364 @ SV148 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[640]) ).

thf(708,plain,
    ! [SV116: $i] :
      ( ( ( in @ ( sK20_B @ SV116 ) @ SV116 )
        = $true )
      | ( ( SV116 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[641]) ).

thf(709,plain,
    ! [SV117: $i] :
      ( ( ( ( SV117 != empty_set ) )
        = $true )
      | ( ( ! [SY333: $i] :
              ~ ( in @ SY333 @ SV117 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[642]) ).

thf(710,plain,
    ! [SV149: $i,SV118: $i] :
      ( ( ( ( set_difference @ SV118 @ SV149 )
         != SV118 )
        | ( disjoint @ SV118 @ SV149 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[643]) ).

thf(711,plain,
    ! [SV150: $i,SV119: $i] :
      ( ( ~ ( disjoint @ SV119 @ SV150 )
        | ( ( set_difference @ SV119 @ SV150 )
          = SV119 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[644]) ).

thf(712,plain,
    ! [SV151: $i,SV120: $i] :
      ( ( ~ ( in @ SV120 @ SV151 )
        | ( subset @ ( singleton @ SV120 ) @ SV151 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[645]) ).

thf(713,plain,
    ! [SV152: $i,SV121: $i] :
      ( ( ~ ( subset @ ( singleton @ SV121 ) @ SV152 )
        | ( in @ SV121 @ SV152 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[646]) ).

thf(714,plain,
    ! [SV153: $i,SV122: $i] :
      ( ( ( ( set_intersection2 @ SV122 @ SV153 )
         != empty_set )
        | ( disjoint @ SV122 @ SV153 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[647]) ).

thf(715,plain,
    ! [SV154: $i,SV123: $i] :
      ( ( ~ ( disjoint @ SV123 @ SV154 )
        | ( ( set_intersection2 @ SV123 @ SV154 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[648]) ).

thf(716,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ~ ( ~ ( ( ( sK21_C @ SV155 @ SV124 )
                 != SV124 )
                | ~ ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) )
            | ~ ( ( ( sK21_C @ SV155 @ SV124 )
                  = SV124 )
                | ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) ) )
        | ( SV155
          = ( singleton @ SV124 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[649]) ).

thf(717,plain,
    ! [SV125: $i,SV156: $i] :
      ( ( ( SV156
         != ( singleton @ SV125 ) )
        | ~ ( ~ ! [SY365: $i] :
                  ( ( SY365 != SV125 )
                  | ( in @ SY365 @ SV156 ) )
            | ~ ! [SY366: $i] :
                  ( ~ ( in @ SY366 @ SV156 )
                  | ( SY366 = SV125 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[650]) ).

thf(718,plain,
    ! [SV157: $i,SV51: $i] :
      ( ( ! [SY367: $i] :
            ( ~ ( in @ SV51 @ SY367 )
            | ~ ( in @ SV157 @ SY367 )
            | ( subset @ ( unordered_pair @ SV51 @ SV157 ) @ SY367 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[651]) ).

thf(719,plain,
    ! [SV51: $i] :
      ( ( ~ ! [SY244: $i,SY245: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV51 @ SY244 ) @ SY245 )
              | ( in @ SV51 @ SY245 ) )
        | ~ ! [SY246: $i,SY247: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV51 @ SY246 ) @ SY247 )
              | ( in @ SY246 @ SY247 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[652]) ).

thf(720,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ! [SY310: $i,SY311: $i] :
            ( ~ ( in @ SV52 @ SY310 )
            | ~ ( in @ SV95 @ SY311 )
            | ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY310 @ SY311 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[653]) ).

thf(721,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ~ ( ~ ! [SY312: $i] :
                  ( ! [SY313: $i] :
                      ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY312 @ SY313 ) )
                  | ( in @ SV52 @ SY312 ) )
            | ~ ! [SY314: $i,SY315: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY314 @ SY315 ) )
                  | ( in @ SV95 @ SY315 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[654]) ).

thf(722,plain,
    ! [SV53: $i,SV158: $i] :
      ( ( ! [SY368: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY368 @ SV158 @ SV53 ) @ SV53 )
                    | ( in @ ( sK6_D @ SY368 @ SV158 @ SV53 ) @ SV158 )
                    | ~ ( in @ ( sK6_D @ SY368 @ SV158 @ SV53 ) @ SY368 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY368 @ SV158 @ SV53 ) @ SV53 )
                          | ( in @ ( sK6_D @ SY368 @ SV158 @ SV53 ) @ SY368 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY368 @ SV158 @ SV53 ) @ SV158 )
                          | ( in @ ( sK6_D @ SY368 @ SV158 @ SV53 ) @ SY368 ) ) ) )
            | ( SY368
              = ( set_difference @ SV53 @ SV158 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[655]) ).

thf(723,plain,
    ! [SV159: $i,SV53: $i] :
      ( ( ! [SY369: $i] :
            ( ( SY369
             != ( set_difference @ SV53 @ SV159 ) )
            | ~ ( ~ ! [SY370: $i] :
                      ( ~ ( in @ SY370 @ SV53 )
                      | ( in @ SY370 @ SV159 )
                      | ( in @ SY370 @ SY369 ) )
                | ~ ~ ( ~ ! [SY260: $i] :
                            ( ~ ( in @ SY260 @ SY369 )
                            | ( in @ SY260 @ SV53 ) )
                      | ~ ! [SY372: $i] :
                            ( ~ ( in @ SY372 @ SY369 )
                            | ~ ( in @ SY372 @ SV159 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[656]) ).

thf(724,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ~ ( ~ ( ! [SY373: $i] :
                    ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SY373 )
                    | ~ ( in @ SY373 @ SV126 ) )
                | ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
            | ~ ( ~ ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ ( sK9_SY187 @ SV160 @ SV126 ) )
                    | ~ ( in @ ( sK9_SY187 @ SV160 @ SV126 ) @ SV126 ) )
                | ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) ) )
        | ( SV160
          = ( union @ SV126 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[657]) ).

thf(725,plain,
    ! [SV127: $i,SV161: $i] :
      ( ( ( SV161
         != ( union @ SV127 ) )
        | ~ ( ~ ! [SY374: $i] :
                  ( ! [SY348: $i] :
                      ( ~ ( in @ SY374 @ SY348 )
                      | ~ ( in @ SY348 @ SV127 ) )
                  | ( in @ SY374 @ SV161 ) )
            | ~ ! [SY376: $i] :
                  ( ~ ( in @ SY376 @ SV161 )
                  | ~ ( ~ ( in @ SY376 @ ( sK7_D @ SY376 @ SV161 @ SV127 ) )
                      | ~ ( in @ ( sK7_D @ SY376 @ SV161 @ SV127 ) @ SV127 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[658]) ).

thf(726,plain,
    ! [SV54: $i,SV162: $i] :
      ( ( ! [SY377: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SY377 @ SV162 @ SV54 ) @ SY377 )
                          | ( ( sK18_D @ SY377 @ SV162 @ SV54 )
                           != SV54 ) )
                      | ~ ( ~ ( in @ ( sK18_D @ SY377 @ SV162 @ SV54 ) @ SY377 )
                          | ( ( sK18_D @ SY377 @ SV162 @ SV54 )
                           != SV162 ) ) )
                | ~ ( ( in @ ( sK18_D @ SY377 @ SV162 @ SV54 ) @ SY377 )
                    | ( ( sK18_D @ SY377 @ SV162 @ SV54 )
                      = SV54 )
                    | ( ( sK18_D @ SY377 @ SV162 @ SV54 )
                      = SV162 ) ) )
            | ( SY377
              = ( unordered_pair @ SV54 @ SV162 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[659]) ).

thf(727,plain,
    ! [SV163: $i,SV54: $i] :
      ( ( ! [SY378: $i] :
            ( ( SY378
             != ( unordered_pair @ SV54 @ SV163 ) )
            | ~ ( ~ ! [SY379: $i] :
                      ( ~ ( in @ SY379 @ SY378 )
                      | ( SY379 = SV54 )
                      | ( SY379 = SV163 ) )
                | ~ ~ ( ~ ! [SY267: $i] :
                            ( ( SY267 != SV54 )
                            | ( in @ SY267 @ SY378 ) )
                      | ~ ! [SY381: $i] :
                            ( ( SY381 != SV163 )
                            | ( in @ SY381 @ SY378 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[660]) ).

thf(728,plain,
    ! [SV164: $i,SV128: $i] :
      ( ( ~ ( subset @ SV128 @ ( singleton @ SV164 ) )
        | ( SV128 = empty_set )
        | ( SV128
          = ( singleton @ SV164 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[661]) ).

thf(729,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[662]) ).

thf(730,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[662]) ).

thf(731,plain,
    ! [SV165: $i,SV129: $i] :
      ( ( ~ ( in @ SV129 @ SV165 )
        | ( subset @ ( singleton @ SV129 ) @ SV165 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[663]) ).

thf(732,plain,
    ! [SV166: $i,SV130: $i] :
      ( ( ~ ( subset @ ( singleton @ SV130 ) @ SV166 )
        | ( in @ SV130 @ SV166 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[664]) ).

thf(733,plain,
    ! [SV167: $i,SV55: $i] :
      ( ( ! [SY382: $i] :
            ( ~ ( ~ ( ! [SY383: $i,SY384: $i] :
                        ( ~ ( in @ SY383 @ SV55 )
                        | ~ ( in @ SY384 @ SV167 )
                        | ( ( sK14_D @ SY382 @ SV167 @ SV55 )
                         != ( ordered_pair @ SY383 @ SY384 ) ) )
                    | ~ ( in @ ( sK14_D @ SY382 @ SV167 @ SV55 ) @ SY382 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SY382 @ SV167 @ SV55 ) @ SV55 )
                              | ~ ( in @ ( sK16_SY193 @ SY382 @ SV167 @ SV55 ) @ SV167 ) )
                        | ( ( sK14_D @ SY382 @ SV167 @ SV55 )
                         != ( ordered_pair @ ( sK15_SY191 @ SY382 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SY382 @ SV167 @ SV55 ) ) ) )
                    | ( in @ ( sK14_D @ SY382 @ SV167 @ SV55 ) @ SY382 ) ) )
            | ( SY382
              = ( cartesian_product2 @ SV55 @ SV167 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[665]) ).

thf(734,plain,
    ! [SV168: $i,SV55: $i] :
      ( ( ! [SY385: $i] :
            ( ( SY385
             != ( cartesian_product2 @ SV55 @ SV168 ) )
            | ~ ( ~ ! [SY386: $i] :
                      ( ! [SY387: $i,SY388: $i] :
                          ( ~ ( in @ SY387 @ SV55 )
                          | ~ ( in @ SY388 @ SV168 )
                          | ( SY386
                           != ( ordered_pair @ SY387 @ SY388 ) ) )
                      | ( in @ SY386 @ SY385 ) )
                | ~ ! [SY389: $i] :
                      ( ~ ( in @ SY389 @ SY385 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY389 @ SY385 @ SV168 @ SV55 ) @ SV55 )
                                | ~ ( in @ ( sK13_SY188 @ SY389 @ SY385 @ SV168 @ SV55 ) @ SV168 ) )
                          | ( SY389
                           != ( ordered_pair @ ( sK12_E @ SY389 @ SY385 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SY389 @ SY385 @ SV168 @ SV55 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[666]) ).

thf(735,plain,
    ! [SV96: $i,SV56: $i] :
      ( ( ! [SY316: $i] :
            ( ! [SY317: $i] :
                ( ( ordered_pair @ SV56 @ SV96 )
               != ( ordered_pair @ SY316 @ SY317 ) )
            | ( SV56 = SY316 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[667]) ).

thf(736,plain,
    ! [SV96: $i,SV56: $i] :
      ( ( ! [SY318: $i,SY319: $i] :
            ( ( ( ordered_pair @ SV56 @ SV96 )
             != ( ordered_pair @ SY318 @ SY319 ) )
            | ( SV96 = SY319 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[668]) ).

thf(737,plain,
    ! [SV169: $i,SV131: $i] :
      ( ( ( disjoint @ SV131 @ SV169 )
        | ~ ( ~ ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV131 )
            | ~ ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV169 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[669]) ).

thf(738,plain,
    ! [SV170: $i,SV132: $i] :
      ( ( ! [SY390: $i] :
            ( ~ ( in @ SY390 @ SV132 )
            | ~ ( in @ SY390 @ SV170 ) )
        | ~ ( disjoint @ SV132 @ SV170 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[670]) ).

thf(739,plain,
    ! [SV171: $i,SV133: $i] :
      ( ( ( SV133 = SV171 )
        | ~ ( subset @ SV133 @ SV171 )
        | ( proper_subset @ SV133 @ SV171 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[671]) ).

thf(740,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[672]) ).

thf(741,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[672]) ).

thf(742,plain,
    ! [SV172: $i,SV134: $i] :
      ( ( ~ ( subset @ SV134 @ ( singleton @ SV172 ) )
        | ( SV134 = empty_set )
        | ( SV134
          = ( singleton @ SV172 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[673]) ).

thf(743,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[674]) ).

thf(744,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[674]) ).

thf(745,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
              | ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) ) )
        = $false )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[675]) ).

thf(746,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( ~ ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
              | ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) ) )
        = $false )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[675]) ).

thf(747,plain,
    ! [SV173: $i,SV135: $i] :
      ( ( ~ ( subset @ SV135 @ SV173 )
        | ~ ( subset @ SV173 @ SV135 )
        | ( SV135 = SV173 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[676]) ).

thf(748,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[677]) ).

thf(749,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[677]) ).

thf(750,plain,
    ! [SV58: $i,SV174: $i] :
      ( ( ! [SY391: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SY391 @ SV174 @ SV58 ) @ SV58 )
                    | ~ ( in @ ( sK10_D @ SY391 @ SV174 @ SV58 ) @ SV174 )
                    | ~ ( in @ ( sK10_D @ SY391 @ SV174 @ SV58 ) @ SY391 ) )
                | ~ ~ ( ~ ( ( in @ ( sK10_D @ SY391 @ SV174 @ SV58 ) @ SV58 )
                          | ( in @ ( sK10_D @ SY391 @ SV174 @ SV58 ) @ SY391 ) )
                      | ~ ( ( in @ ( sK10_D @ SY391 @ SV174 @ SV58 ) @ SV174 )
                          | ( in @ ( sK10_D @ SY391 @ SV174 @ SV58 ) @ SY391 ) ) ) )
            | ( SY391
              = ( set_intersection2 @ SV58 @ SV174 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[678]) ).

thf(751,plain,
    ! [SV175: $i,SV58: $i] :
      ( ( ! [SY392: $i] :
            ( ( SY392
             != ( set_intersection2 @ SV58 @ SV175 ) )
            | ~ ( ~ ! [SY393: $i] :
                      ( ~ ( in @ SY393 @ SV58 )
                      | ~ ( in @ SY393 @ SV175 )
                      | ( in @ SY393 @ SY392 ) )
                | ~ ~ ( ~ ! [SY290: $i] :
                            ( ~ ( in @ SY290 @ SY392 )
                            | ( in @ SY290 @ SV58 ) )
                      | ~ ! [SY395: $i] :
                            ( ~ ( in @ SY395 @ SY392 )
                            | ( in @ SY395 @ SV175 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[679]) ).

thf(752,plain,
    ! [SV176: $i,SV136: $i] :
      ( ( ( ( set_difference @ SV136 @ SV176 )
         != empty_set )
        | ( subset @ SV136 @ SV176 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[680]) ).

thf(753,plain,
    ! [SV177: $i,SV137: $i] :
      ( ( ~ ( subset @ SV137 @ SV177 )
        | ( ( set_difference @ SV137 @ SV177 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[681]) ).

thf(754,plain,
    ! [SV59: $i,SV178: $i] :
      ( ( ! [SY396: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SY396 @ SV178 @ SV59 ) @ SY396 )
                          | ~ ( in @ ( sK17_D @ SY396 @ SV178 @ SV59 ) @ SV59 ) )
                      | ~ ( ~ ( in @ ( sK17_D @ SY396 @ SV178 @ SV59 ) @ SY396 )
                          | ~ ( in @ ( sK17_D @ SY396 @ SV178 @ SV59 ) @ SV178 ) ) )
                | ~ ( ( in @ ( sK17_D @ SY396 @ SV178 @ SV59 ) @ SY396 )
                    | ( in @ ( sK17_D @ SY396 @ SV178 @ SV59 ) @ SV59 )
                    | ( in @ ( sK17_D @ SY396 @ SV178 @ SV59 ) @ SV178 ) ) )
            | ( SY396
              = ( set_union2 @ SV59 @ SV178 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[682]) ).

thf(755,plain,
    ! [SV179: $i,SV59: $i] :
      ( ( ! [SY397: $i] :
            ( ( SY397
             != ( set_union2 @ SV59 @ SV179 ) )
            | ~ ( ~ ! [SY398: $i] :
                      ( ~ ( in @ SY398 @ SY397 )
                      | ( in @ SY398 @ SV59 )
                      | ( in @ SY398 @ SV179 ) )
                | ~ ~ ( ~ ! [SY297: $i] :
                            ( ~ ( in @ SY297 @ SV59 )
                            | ( in @ SY297 @ SY397 ) )
                      | ~ ! [SY400: $i] :
                            ( ~ ( in @ SY400 @ SV179 )
                            | ( in @ SY400 @ SY397 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[683]) ).

thf(756,plain,
    ! [SV63: $i,SV5: $i,SV138: $i] :
      ( ( ( in @ SV138 @ SV5 )
        = $true )
      | ( ( subset @ SV5 @ ( set_difference @ SV63 @ ( singleton @ SV138 ) ) )
        = $true )
      | ( ( subset @ SV5 @ SV63 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[685]) ).

thf(757,plain,
    ! [SV106: $i,SV65: $i,SV98: $i,SV7: $i] :
      ( ( ( SV7 = SV98 )
        = $true )
      | ( ( ( ( unordered_pair @ SV7 @ SV65 )
           != ( unordered_pair @ SV98 @ SV106 ) ) )
        = $true )
      | ( ( SV7 = SV106 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[686]) ).

thf(758,plain,
    ! [SV99: $i,SV68: $i,SV10: $i] :
      ( ( ( subset @ SV10 @ SV68 )
        = $false )
      | ( ( ~ ( subset @ SV10 @ SV99 ) )
        = $true )
      | ( ( subset @ SV10 @ ( set_intersection2 @ SV68 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[687]) ).

thf(759,plain,
    ! [SV100: $i,SV69: $i,SV11: $i] :
      ( ( ( subset @ SV11 @ SV69 )
        = $false )
      | ( ( ~ ( subset @ SV69 @ SV100 ) )
        = $true )
      | ( ( subset @ SV11 @ SV100 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[688]) ).

thf(760,plain,
    ! [SV23: $i,SV101: $i,SV79: $i] :
      ( ( ( disjoint @ SV79 @ SV101 )
        = $false )
      | ( ( ~ ( subset @ SV23 @ SV79 ) )
        = $true )
      | ( ( disjoint @ SV23 @ SV101 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[692]) ).

thf(761,plain,
    ! [SV102: $i,SV82: $i,SV27: $i] :
      ( ( ( subset @ SV27 @ SV82 )
        = $false )
      | ( ( ~ ( subset @ SV102 @ SV82 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV27 @ SV102 ) @ SV82 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[693]) ).

thf(762,plain,
    ! [SV50: $i,SV94: $i] :
      ( ( ( empty @ SV94 )
        = $false )
      | ( ( SV50 = SV94 )
        = $true )
      | ( ( empty @ SV50 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[699]) ).

thf(763,plain,
    ! [SV141: $i,SV108: $i] :
      ( ( ( disjoint @ SV108 @ SV141 )
        = $true )
      | ( ( in @ ( sK22_C @ SV141 @ SV108 ) @ ( set_intersection2 @ SV108 @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[700]) ).

thf(764,plain,
    ! [SV142: $i,SV109: $i] :
      ( ( ( ! [SY361: $i] :
              ~ ( in @ SY361 @ ( set_intersection2 @ SV109 @ SV142 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV109 @ SV142 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[701]) ).

thf(765,plain,
    ! [SV143: $i,SV110: $i] :
      ( ( ( ( ( set_difference @ SV110 @ SV143 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV110 @ SV143 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[702]) ).

thf(766,plain,
    ! [SV144: $i,SV111: $i] :
      ( ( ( ~ ( subset @ SV111 @ SV144 ) )
        = $true )
      | ( ( ( set_difference @ SV111 @ SV144 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[703]) ).

thf(767,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
                  | ~ ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) )
              | ~ ( ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
                  | ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) ) ) )
        = $true )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[704]) ).

thf(768,plain,
    ! [SV113: $i,SV146: $i] :
      ( ( ( ( SV146
           != ( powerset @ SV113 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY362: $i] :
                    ( ~ ( in @ SY362 @ SV146 )
                    | ( subset @ SY362 @ SV113 ) )
              | ~ ! [SY363: $i] :
                    ( ~ ( subset @ SY363 @ SV113 )
                    | ( in @ SY363 @ SV146 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[705]) ).

thf(769,plain,
    ! [SV114: $i,SV147: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV114 )
              | ~ ~ ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV147 ) ) )
        = $true )
      | ( ( subset @ SV114 @ SV147 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[706]) ).

thf(770,plain,
    ! [SV148: $i,SV115: $i] :
      ( ( ( ~ ( subset @ SV115 @ SV148 ) )
        = $true )
      | ( ( ! [SY364: $i] :
              ( ~ ( in @ SY364 @ SV115 )
              | ( in @ SY364 @ SV148 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[707]) ).

thf(771,plain,
    ! [SV117: $i] :
      ( ( ( SV117 = empty_set )
        = $false )
      | ( ( ! [SY333: $i] :
              ~ ( in @ SY333 @ SV117 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[709]) ).

thf(772,plain,
    ! [SV149: $i,SV118: $i] :
      ( ( ( ( ( set_difference @ SV118 @ SV149 )
           != SV118 ) )
        = $true )
      | ( ( disjoint @ SV118 @ SV149 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[710]) ).

thf(773,plain,
    ! [SV150: $i,SV119: $i] :
      ( ( ( ~ ( disjoint @ SV119 @ SV150 ) )
        = $true )
      | ( ( ( set_difference @ SV119 @ SV150 )
          = SV119 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[711]) ).

thf(774,plain,
    ! [SV151: $i,SV120: $i] :
      ( ( ( ~ ( in @ SV120 @ SV151 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV120 ) @ SV151 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[712]) ).

thf(775,plain,
    ! [SV152: $i,SV121: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV121 ) @ SV152 ) )
        = $true )
      | ( ( in @ SV121 @ SV152 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[713]) ).

thf(776,plain,
    ! [SV153: $i,SV122: $i] :
      ( ( ( ( ( set_intersection2 @ SV122 @ SV153 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV122 @ SV153 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[714]) ).

thf(777,plain,
    ! [SV154: $i,SV123: $i] :
      ( ( ( ~ ( disjoint @ SV123 @ SV154 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV123 @ SV154 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[715]) ).

thf(778,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( ~ ( ~ ( ( ( sK21_C @ SV155 @ SV124 )
                   != SV124 )
                  | ~ ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) )
              | ~ ( ( ( sK21_C @ SV155 @ SV124 )
                    = SV124 )
                  | ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) ) ) )
        = $true )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[716]) ).

thf(779,plain,
    ! [SV125: $i,SV156: $i] :
      ( ( ( ( SV156
           != ( singleton @ SV125 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY365: $i] :
                    ( ( SY365 != SV125 )
                    | ( in @ SY365 @ SV156 ) )
              | ~ ! [SY366: $i] :
                    ( ~ ( in @ SY366 @ SV156 )
                    | ( SY366 = SV125 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[717]) ).

thf(780,plain,
    ! [SV157: $i,SV180: $i,SV51: $i] :
      ( ( ~ ( in @ SV51 @ SV180 )
        | ~ ( in @ SV157 @ SV180 )
        | ( subset @ ( unordered_pair @ SV51 @ SV157 ) @ SV180 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[718]) ).

thf(781,plain,
    ! [SV51: $i] :
      ( ( ~ ! [SY244: $i,SY245: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV51 @ SY244 ) @ SY245 )
              | ( in @ SV51 @ SY245 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[719]) ).

thf(782,plain,
    ! [SV51: $i] :
      ( ( ~ ! [SY246: $i,SY247: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV51 @ SY246 ) @ SY247 )
              | ( in @ SY246 @ SY247 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[719]) ).

thf(783,plain,
    ! [SV95: $i,SV181: $i,SV52: $i] :
      ( ( ! [SY401: $i] :
            ( ~ ( in @ SV52 @ SV181 )
            | ~ ( in @ SV95 @ SY401 )
            | ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV181 @ SY401 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[720]) ).

thf(784,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ~ ! [SY312: $i] :
              ( ! [SY313: $i] :
                  ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY312 @ SY313 ) )
              | ( in @ SV52 @ SY312 ) )
        | ~ ! [SY314: $i,SY315: $i] :
              ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY314 @ SY315 ) )
              | ( in @ SV95 @ SY315 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[721]) ).

thf(785,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
                | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
                | ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
            | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
                      | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
                  | ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
                      | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) ) ) )
        | ( SV182
          = ( set_difference @ SV53 @ SV158 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[722]) ).

thf(786,plain,
    ! [SV159: $i,SV53: $i,SV183: $i] :
      ( ( ( SV183
         != ( set_difference @ SV53 @ SV159 ) )
        | ~ ( ~ ! [SY402: $i] :
                  ( ~ ( in @ SY402 @ SV53 )
                  | ( in @ SY402 @ SV159 )
                  | ( in @ SY402 @ SV183 ) )
            | ~ ~ ( ~ ! [SY403: $i] :
                        ( ~ ( in @ SY403 @ SV183 )
                        | ( in @ SY403 @ SV53 ) )
                  | ~ ! [SY404: $i] :
                        ( ~ ( in @ SY404 @ SV183 )
                        | ~ ( in @ SY404 @ SV159 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[723]) ).

thf(787,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ~ ( ~ ( ! [SY373: $i] :
                      ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SY373 )
                      | ~ ( in @ SY373 @ SV126 ) )
                  | ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
              | ~ ( ~ ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ ( sK9_SY187 @ SV160 @ SV126 ) )
                      | ~ ( in @ ( sK9_SY187 @ SV160 @ SV126 ) @ SV126 ) )
                  | ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) ) ) )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[724]) ).

thf(788,plain,
    ! [SV127: $i,SV161: $i] :
      ( ( ( ( SV161
           != ( union @ SV127 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY374: $i] :
                    ( ! [SY348: $i] :
                        ( ~ ( in @ SY374 @ SY348 )
                        | ~ ( in @ SY348 @ SV127 ) )
                    | ( in @ SY374 @ SV161 ) )
              | ~ ! [SY376: $i] :
                    ( ~ ( in @ SY376 @ SV161 )
                    | ~ ( ~ ( in @ SY376 @ ( sK7_D @ SY376 @ SV161 @ SV127 ) )
                        | ~ ( in @ ( sK7_D @ SY376 @ SV161 @ SV127 ) @ SV127 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[725]) ).

thf(789,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                      | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                       != SV54 ) )
                  | ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                      | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                       != SV162 ) ) )
            | ~ ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                  = SV54 )
                | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                  = SV162 ) ) )
        | ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[726]) ).

thf(790,plain,
    ! [SV163: $i,SV54: $i,SV185: $i] :
      ( ( ( SV185
         != ( unordered_pair @ SV54 @ SV163 ) )
        | ~ ( ~ ! [SY405: $i] :
                  ( ~ ( in @ SY405 @ SV185 )
                  | ( SY405 = SV54 )
                  | ( SY405 = SV163 ) )
            | ~ ~ ( ~ ! [SY406: $i] :
                        ( ( SY406 != SV54 )
                        | ( in @ SY406 @ SV185 ) )
                  | ~ ! [SY407: $i] :
                        ( ( SY407 != SV163 )
                        | ( in @ SY407 @ SV185 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[727]) ).

thf(791,plain,
    ! [SV164: $i,SV128: $i] :
      ( ( ( ~ ( subset @ SV128 @ ( singleton @ SV164 ) ) )
        = $true )
      | ( ( ( SV128 = empty_set )
          | ( SV128
            = ( singleton @ SV164 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[728]) ).

thf(792,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[729]) ).

thf(793,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[730]) ).

thf(794,plain,
    ! [SV165: $i,SV129: $i] :
      ( ( ( ~ ( in @ SV129 @ SV165 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV129 ) @ SV165 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[731]) ).

thf(795,plain,
    ! [SV166: $i,SV130: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV130 ) @ SV166 ) )
        = $true )
      | ( ( in @ SV130 @ SV166 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[732]) ).

thf(796,plain,
    ! [SV186: $i,SV167: $i,SV55: $i] :
      ( ( ~ ( ~ ( ! [SY408: $i,SY409: $i] :
                    ( ~ ( in @ SY408 @ SV55 )
                    | ~ ( in @ SY409 @ SV167 )
                    | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
                     != ( ordered_pair @ SY408 @ SY409 ) ) )
                | ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
            | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
                          | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) )
                    | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
                     != ( ordered_pair @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) ) ) )
                | ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) ) )
        | ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[733]) ).

thf(797,plain,
    ! [SV168: $i,SV55: $i,SV187: $i] :
      ( ( ( SV187
         != ( cartesian_product2 @ SV55 @ SV168 ) )
        | ~ ( ~ ! [SY410: $i] :
                  ( ! [SY387: $i,SY388: $i] :
                      ( ~ ( in @ SY387 @ SV55 )
                      | ~ ( in @ SY388 @ SV168 )
                      | ( SY410
                       != ( ordered_pair @ SY387 @ SY388 ) ) )
                  | ( in @ SY410 @ SV187 ) )
            | ~ ! [SY413: $i] :
                  ( ~ ( in @ SY413 @ SV187 )
                  | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                            | ~ ( in @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
                      | ( SY413
                       != ( ordered_pair @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[734]) ).

thf(798,plain,
    ! [SV188: $i,SV96: $i,SV56: $i] :
      ( ( ! [SY414: $i] :
            ( ( ordered_pair @ SV56 @ SV96 )
           != ( ordered_pair @ SV188 @ SY414 ) )
        | ( SV56 = SV188 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[735]) ).

thf(799,plain,
    ! [SV189: $i,SV96: $i,SV56: $i] :
      ( ( ! [SY415: $i] :
            ( ( ( ordered_pair @ SV56 @ SV96 )
             != ( ordered_pair @ SV189 @ SY415 ) )
            | ( SV96 = SY415 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[736]) ).

thf(800,plain,
    ! [SV169: $i,SV131: $i] :
      ( ( ( disjoint @ SV131 @ SV169 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV131 )
              | ~ ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV169 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[737]) ).

thf(801,plain,
    ! [SV170: $i,SV132: $i] :
      ( ( ( ! [SY390: $i] :
              ( ~ ( in @ SY390 @ SV132 )
              | ~ ( in @ SY390 @ SV170 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV132 @ SV170 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[738]) ).

thf(802,plain,
    ! [SV171: $i,SV133: $i] :
      ( ( ( ( SV133 = SV171 )
          | ~ ( subset @ SV133 @ SV171 ) )
        = $true )
      | ( ( proper_subset @ SV133 @ SV171 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[739]) ).

thf(803,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[740]) ).

thf(804,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[741]) ).

thf(805,plain,
    ! [SV172: $i,SV134: $i] :
      ( ( ( ~ ( subset @ SV134 @ ( singleton @ SV172 ) ) )
        = $true )
      | ( ( ( SV134 = empty_set )
          | ( SV134
            = ( singleton @ SV172 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[742]) ).

thf(806,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[743]) ).

thf(807,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[744]) ).

thf(808,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
          | ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) )
        = $true )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[745]) ).

thf(809,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
          | ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) )
        = $true )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[746]) ).

thf(810,plain,
    ! [SV173: $i,SV135: $i] :
      ( ( ( ~ ( subset @ SV135 @ SV173 )
          | ~ ( subset @ SV173 @ SV135 ) )
        = $true )
      | ( ( SV135 = SV173 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[747]) ).

thf(811,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[748]) ).

thf(812,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[749]) ).

thf(813,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
                | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
                | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
            | ~ ~ ( ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
                      | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
                  | ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
                      | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) ) ) )
        | ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[750]) ).

thf(814,plain,
    ! [SV175: $i,SV58: $i,SV191: $i] :
      ( ( ( SV191
         != ( set_intersection2 @ SV58 @ SV175 ) )
        | ~ ( ~ ! [SY416: $i] :
                  ( ~ ( in @ SY416 @ SV58 )
                  | ~ ( in @ SY416 @ SV175 )
                  | ( in @ SY416 @ SV191 ) )
            | ~ ~ ( ~ ! [SY417: $i] :
                        ( ~ ( in @ SY417 @ SV191 )
                        | ( in @ SY417 @ SV58 ) )
                  | ~ ! [SY418: $i] :
                        ( ~ ( in @ SY418 @ SV191 )
                        | ( in @ SY418 @ SV175 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[751]) ).

thf(815,plain,
    ! [SV176: $i,SV136: $i] :
      ( ( ( ( ( set_difference @ SV136 @ SV176 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV136 @ SV176 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[752]) ).

thf(816,plain,
    ! [SV177: $i,SV137: $i] :
      ( ( ( ~ ( subset @ SV137 @ SV177 ) )
        = $true )
      | ( ( ( set_difference @ SV137 @ SV177 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[753]) ).

thf(817,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                      | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) )
                  | ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                      | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) )
            | ~ ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 )
                | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) )
        | ( SV192
          = ( set_union2 @ SV59 @ SV178 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[754]) ).

thf(818,plain,
    ! [SV179: $i,SV59: $i,SV193: $i] :
      ( ( ( SV193
         != ( set_union2 @ SV59 @ SV179 ) )
        | ~ ( ~ ! [SY419: $i] :
                  ( ~ ( in @ SY419 @ SV193 )
                  | ( in @ SY419 @ SV59 )
                  | ( in @ SY419 @ SV179 ) )
            | ~ ~ ( ~ ! [SY420: $i] :
                        ( ~ ( in @ SY420 @ SV59 )
                        | ( in @ SY420 @ SV193 ) )
                  | ~ ! [SY421: $i] :
                        ( ~ ( in @ SY421 @ SV179 )
                        | ( in @ SY421 @ SV193 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[755]) ).

thf(819,plain,
    ! [SV106: $i,SV98: $i,SV65: $i,SV7: $i] :
      ( ( ( ( unordered_pair @ SV7 @ SV65 )
          = ( unordered_pair @ SV98 @ SV106 ) )
        = $false )
      | ( ( SV7 = SV98 )
        = $true )
      | ( ( SV7 = SV106 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[757]) ).

thf(820,plain,
    ! [SV68: $i,SV99: $i,SV10: $i] :
      ( ( ( subset @ SV10 @ SV99 )
        = $false )
      | ( ( subset @ SV10 @ SV68 )
        = $false )
      | ( ( subset @ SV10 @ ( set_intersection2 @ SV68 @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[758]) ).

thf(821,plain,
    ! [SV11: $i,SV100: $i,SV69: $i] :
      ( ( ( subset @ SV69 @ SV100 )
        = $false )
      | ( ( subset @ SV11 @ SV69 )
        = $false )
      | ( ( subset @ SV11 @ SV100 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[759]) ).

thf(822,plain,
    ! [SV101: $i,SV79: $i,SV23: $i] :
      ( ( ( subset @ SV23 @ SV79 )
        = $false )
      | ( ( disjoint @ SV79 @ SV101 )
        = $false )
      | ( ( disjoint @ SV23 @ SV101 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[760]) ).

thf(823,plain,
    ! [SV27: $i,SV82: $i,SV102: $i] :
      ( ( ( subset @ SV102 @ SV82 )
        = $false )
      | ( ( subset @ SV27 @ SV82 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV27 @ SV102 ) @ SV82 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[761]) ).

thf(824,plain,
    ! [SV142: $i,SV109: $i,SV194: $i] :
      ( ( ( ~ ( in @ SV194 @ ( set_intersection2 @ SV109 @ SV142 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV109 @ SV142 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[764]) ).

thf(825,plain,
    ! [SV143: $i,SV110: $i] :
      ( ( ( ( set_difference @ SV110 @ SV143 )
          = empty_set )
        = $false )
      | ( ( subset @ SV110 @ SV143 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[765]) ).

thf(826,plain,
    ! [SV144: $i,SV111: $i] :
      ( ( ( subset @ SV111 @ SV144 )
        = $false )
      | ( ( ( set_difference @ SV111 @ SV144 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[766]) ).

thf(827,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
              | ~ ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) )
          | ~ ( ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
              | ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) ) )
        = $false )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[767]) ).

thf(828,plain,
    ! [SV113: $i,SV146: $i] :
      ( ( ( SV146
          = ( powerset @ SV113 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY362: $i] :
                    ( ~ ( in @ SY362 @ SV146 )
                    | ( subset @ SY362 @ SV113 ) )
              | ~ ! [SY363: $i] :
                    ( ~ ( subset @ SY363 @ SV113 )
                    | ( in @ SY363 @ SV146 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[768]) ).

thf(829,plain,
    ! [SV114: $i,SV147: $i] :
      ( ( ( ~ ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV114 )
          | ~ ~ ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV147 ) )
        = $false )
      | ( ( subset @ SV114 @ SV147 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[769]) ).

thf(830,plain,
    ! [SV148: $i,SV115: $i] :
      ( ( ( subset @ SV115 @ SV148 )
        = $false )
      | ( ( ! [SY364: $i] :
              ( ~ ( in @ SY364 @ SV115 )
              | ( in @ SY364 @ SV148 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[770]) ).

thf(831,plain,
    ! [SV117: $i,SV195: $i] :
      ( ( ( ~ ( in @ SV195 @ SV117 ) )
        = $true )
      | ( ( SV117 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[771]) ).

thf(832,plain,
    ! [SV149: $i,SV118: $i] :
      ( ( ( ( set_difference @ SV118 @ SV149 )
          = SV118 )
        = $false )
      | ( ( disjoint @ SV118 @ SV149 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[772]) ).

thf(833,plain,
    ! [SV150: $i,SV119: $i] :
      ( ( ( disjoint @ SV119 @ SV150 )
        = $false )
      | ( ( ( set_difference @ SV119 @ SV150 )
          = SV119 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[773]) ).

thf(834,plain,
    ! [SV151: $i,SV120: $i] :
      ( ( ( in @ SV120 @ SV151 )
        = $false )
      | ( ( subset @ ( singleton @ SV120 ) @ SV151 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[774]) ).

thf(835,plain,
    ! [SV152: $i,SV121: $i] :
      ( ( ( subset @ ( singleton @ SV121 ) @ SV152 )
        = $false )
      | ( ( in @ SV121 @ SV152 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[775]) ).

thf(836,plain,
    ! [SV153: $i,SV122: $i] :
      ( ( ( ( set_intersection2 @ SV122 @ SV153 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV122 @ SV153 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[776]) ).

thf(837,plain,
    ! [SV154: $i,SV123: $i] :
      ( ( ( disjoint @ SV123 @ SV154 )
        = $false )
      | ( ( ( set_intersection2 @ SV123 @ SV154 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[777]) ).

thf(838,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( ~ ( ( ( sK21_C @ SV155 @ SV124 )
               != SV124 )
              | ~ ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) )
          | ~ ( ( ( sK21_C @ SV155 @ SV124 )
                = SV124 )
              | ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) ) )
        = $false )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[778]) ).

thf(839,plain,
    ! [SV125: $i,SV156: $i] :
      ( ( ( SV156
          = ( singleton @ SV125 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY365: $i] :
                    ( ( SY365 != SV125 )
                    | ( in @ SY365 @ SV156 ) )
              | ~ ! [SY366: $i] :
                    ( ~ ( in @ SY366 @ SV156 )
                    | ( SY366 = SV125 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[779]) ).

thf(840,plain,
    ! [SV157: $i,SV180: $i,SV51: $i] :
      ( ( ( ~ ( in @ SV51 @ SV180 )
          | ~ ( in @ SV157 @ SV180 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV51 @ SV157 ) @ SV180 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[780]) ).

thf(841,plain,
    ! [SV51: $i] :
      ( ( ! [SY244: $i,SY245: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV51 @ SY244 ) @ SY245 )
            | ( in @ SV51 @ SY245 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[781]) ).

thf(842,plain,
    ! [SV51: $i] :
      ( ( ! [SY246: $i,SY247: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV51 @ SY246 ) @ SY247 )
            | ( in @ SY246 @ SY247 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[782]) ).

thf(843,plain,
    ! [SV196: $i,SV95: $i,SV181: $i,SV52: $i] :
      ( ( ~ ( in @ SV52 @ SV181 )
        | ~ ( in @ SV95 @ SV196 )
        | ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV181 @ SV196 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[783]) ).

thf(844,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ~ ! [SY312: $i] :
              ( ! [SY313: $i] :
                  ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY312 @ SY313 ) )
              | ( in @ SV52 @ SY312 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[784]) ).

thf(845,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ~ ! [SY314: $i,SY315: $i] :
              ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY314 @ SY315 ) )
              | ( in @ SV95 @ SY315 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[784]) ).

thf(846,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
                  | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
                  | ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
              | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
                        | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
                    | ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
                        | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) ) ) ) )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[785]) ).

thf(847,plain,
    ! [SV159: $i,SV53: $i,SV183: $i] :
      ( ( ( ( SV183
           != ( set_difference @ SV53 @ SV159 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY402: $i] :
                    ( ~ ( in @ SY402 @ SV53 )
                    | ( in @ SY402 @ SV159 )
                    | ( in @ SY402 @ SV183 ) )
              | ~ ~ ( ~ ! [SY403: $i] :
                          ( ~ ( in @ SY403 @ SV183 )
                          | ( in @ SY403 @ SV53 ) )
                    | ~ ! [SY404: $i] :
                          ( ~ ( in @ SY404 @ SV183 )
                          | ~ ( in @ SY404 @ SV159 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[786]) ).

thf(848,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ~ ( ! [SY373: $i] :
                  ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SY373 )
                  | ~ ( in @ SY373 @ SV126 ) )
              | ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
          | ~ ( ~ ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ ( sK9_SY187 @ SV160 @ SV126 ) )
                  | ~ ( in @ ( sK9_SY187 @ SV160 @ SV126 ) @ SV126 ) )
              | ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) ) )
        = $false )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[787]) ).

thf(849,plain,
    ! [SV127: $i,SV161: $i] :
      ( ( ( SV161
          = ( union @ SV127 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY374: $i] :
                    ( ! [SY348: $i] :
                        ( ~ ( in @ SY374 @ SY348 )
                        | ~ ( in @ SY348 @ SV127 ) )
                    | ( in @ SY374 @ SV161 ) )
              | ~ ! [SY376: $i] :
                    ( ~ ( in @ SY376 @ SV161 )
                    | ~ ( ~ ( in @ SY376 @ ( sK7_D @ SY376 @ SV161 @ SV127 ) )
                        | ~ ( in @ ( sK7_D @ SY376 @ SV161 @ SV127 ) @ SV127 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[788]) ).

thf(850,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                        | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                         != SV54 ) )
                    | ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                        | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                         != SV162 ) ) )
              | ~ ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                  | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                    = SV54 )
                  | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                    = SV162 ) ) ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[789]) ).

thf(851,plain,
    ! [SV163: $i,SV54: $i,SV185: $i] :
      ( ( ( ( SV185
           != ( unordered_pair @ SV54 @ SV163 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY405: $i] :
                    ( ~ ( in @ SY405 @ SV185 )
                    | ( SY405 = SV54 )
                    | ( SY405 = SV163 ) )
              | ~ ~ ( ~ ! [SY406: $i] :
                          ( ( SY406 != SV54 )
                          | ( in @ SY406 @ SV185 ) )
                    | ~ ! [SY407: $i] :
                          ( ( SY407 != SV163 )
                          | ( in @ SY407 @ SV185 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[790]) ).

thf(852,plain,
    ! [SV164: $i,SV128: $i] :
      ( ( ( subset @ SV128 @ ( singleton @ SV164 ) )
        = $false )
      | ( ( ( SV128 = empty_set )
          | ( SV128
            = ( singleton @ SV164 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[791]) ).

thf(853,plain,
    ! [SV197: $i] :
      ( ( ( SV197 != empty_set )
        | ! [SY422: $i] : ( subset @ SV197 @ ( singleton @ SY422 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[792]) ).

thf(854,plain,
    ! [SV198: $i] :
      ( ( ! [SY423: $i] :
            ( ( SV198
             != ( singleton @ SY423 ) )
            | ( subset @ SV198 @ ( singleton @ SY423 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[793]) ).

thf(855,plain,
    ! [SV165: $i,SV129: $i] :
      ( ( ( in @ SV129 @ SV165 )
        = $false )
      | ( ( subset @ ( singleton @ SV129 ) @ SV165 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[794]) ).

thf(856,plain,
    ! [SV166: $i,SV130: $i] :
      ( ( ( subset @ ( singleton @ SV130 ) @ SV166 )
        = $false )
      | ( ( in @ SV130 @ SV166 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[795]) ).

thf(857,plain,
    ! [SV186: $i,SV167: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( ! [SY408: $i,SY409: $i] :
                      ( ~ ( in @ SY408 @ SV55 )
                      | ~ ( in @ SY409 @ SV167 )
                      | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
                       != ( ordered_pair @ SY408 @ SY409 ) ) )
                  | ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
              | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
                            | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) )
                      | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
                       != ( ordered_pair @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) ) ) )
                  | ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) ) ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[796]) ).

thf(858,plain,
    ! [SV168: $i,SV55: $i,SV187: $i] :
      ( ( ( ( SV187
           != ( cartesian_product2 @ SV55 @ SV168 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY410: $i] :
                    ( ! [SY387: $i,SY388: $i] :
                        ( ~ ( in @ SY387 @ SV55 )
                        | ~ ( in @ SY388 @ SV168 )
                        | ( SY410
                         != ( ordered_pair @ SY387 @ SY388 ) ) )
                    | ( in @ SY410 @ SV187 ) )
              | ~ ! [SY413: $i] :
                    ( ~ ( in @ SY413 @ SV187 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                              | ~ ( in @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
                        | ( SY413
                         != ( ordered_pair @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[797]) ).

thf(859,plain,
    ! [SV188: $i,SV96: $i,SV56: $i] :
      ( ( ( ! [SY414: $i] :
              ( ( ordered_pair @ SV56 @ SV96 )
             != ( ordered_pair @ SV188 @ SY414 ) ) )
        = $true )
      | ( ( SV56 = SV188 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[798]) ).

thf(860,plain,
    ! [SV199: $i,SV189: $i,SV96: $i,SV56: $i] :
      ( ( ( ( ordered_pair @ SV56 @ SV96 )
         != ( ordered_pair @ SV189 @ SV199 ) )
        | ( SV96 = SV199 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[799]) ).

thf(861,plain,
    ! [SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV131 )
          | ~ ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV169 ) )
        = $false )
      | ( ( disjoint @ SV131 @ SV169 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[800]) ).

thf(862,plain,
    ! [SV170: $i,SV132: $i,SV200: $i] :
      ( ( ( ~ ( in @ SV200 @ SV132 )
          | ~ ( in @ SV200 @ SV170 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV132 @ SV170 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[801]) ).

thf(863,plain,
    ! [SV171: $i,SV133: $i] :
      ( ( ( SV133 = SV171 )
        = $true )
      | ( ( ~ ( subset @ SV133 @ SV171 ) )
        = $true )
      | ( ( proper_subset @ SV133 @ SV171 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[802]) ).

thf(864,plain,
    ! [SV201: $i] :
      ( ( ! [SY424: $i] :
            ( ~ ( proper_subset @ SV201 @ SY424 )
            | ( SV201 != SY424 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[803]) ).

thf(865,plain,
    ! [SV202: $i] :
      ( ( ! [SY425: $i] :
            ( ~ ( proper_subset @ SV202 @ SY425 )
            | ( subset @ SV202 @ SY425 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[804]) ).

thf(866,plain,
    ! [SV172: $i,SV134: $i] :
      ( ( ( subset @ SV134 @ ( singleton @ SV172 ) )
        = $false )
      | ( ( ( SV134 = empty_set )
          | ( SV134
            = ( singleton @ SV172 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[805]) ).

thf(867,plain,
    ! [SV203: $i] :
      ( ( ( SV203 != empty_set )
        | ! [SY426: $i] : ( subset @ SV203 @ ( singleton @ SY426 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[806]) ).

thf(868,plain,
    ! [SV204: $i] :
      ( ( ! [SY427: $i] :
            ( ( SV204
             != ( singleton @ SY427 ) )
            | ( subset @ SV204 @ ( singleton @ SY427 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[807]) ).

thf(869,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 ) )
        = $true )
      | ( ( ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) )
        = $true )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[808]) ).

thf(870,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
        = $true )
      | ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 )
        = $true )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[809]) ).

thf(871,plain,
    ! [SV173: $i,SV135: $i] :
      ( ( ( ~ ( subset @ SV135 @ SV173 ) )
        = $true )
      | ( ( ~ ( subset @ SV173 @ SV135 ) )
        = $true )
      | ( ( SV135 = SV173 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[810]) ).

thf(872,plain,
    ! [SV205: $i] :
      ( ( ! [SY428: $i] :
            ( ( SV205 != SY428 )
            | ( subset @ SV205 @ SY428 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[811]) ).

thf(873,plain,
    ! [SV206: $i] :
      ( ( ! [SY429: $i] :
            ( ( SV206 != SY429 )
            | ( subset @ SY429 @ SV206 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[812]) ).

thf(874,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
                  | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
                  | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
              | ~ ~ ( ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
                        | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
                    | ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
                        | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) ) ) ) )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[813]) ).

thf(875,plain,
    ! [SV175: $i,SV58: $i,SV191: $i] :
      ( ( ( ( SV191
           != ( set_intersection2 @ SV58 @ SV175 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY416: $i] :
                    ( ~ ( in @ SY416 @ SV58 )
                    | ~ ( in @ SY416 @ SV175 )
                    | ( in @ SY416 @ SV191 ) )
              | ~ ~ ( ~ ! [SY417: $i] :
                          ( ~ ( in @ SY417 @ SV191 )
                          | ( in @ SY417 @ SV58 ) )
                    | ~ ! [SY418: $i] :
                          ( ~ ( in @ SY418 @ SV191 )
                          | ( in @ SY418 @ SV175 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[814]) ).

thf(876,plain,
    ! [SV176: $i,SV136: $i] :
      ( ( ( ( set_difference @ SV136 @ SV176 )
          = empty_set )
        = $false )
      | ( ( subset @ SV136 @ SV176 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[815]) ).

thf(877,plain,
    ! [SV177: $i,SV137: $i] :
      ( ( ( subset @ SV137 @ SV177 )
        = $false )
      | ( ( ( set_difference @ SV137 @ SV177 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[816]) ).

thf(878,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                        | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) )
                    | ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                        | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) )
              | ~ ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                  | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 )
                  | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[817]) ).

thf(879,plain,
    ! [SV179: $i,SV59: $i,SV193: $i] :
      ( ( ( ( SV193
           != ( set_union2 @ SV59 @ SV179 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY419: $i] :
                    ( ~ ( in @ SY419 @ SV193 )
                    | ( in @ SY419 @ SV59 )
                    | ( in @ SY419 @ SV179 ) )
              | ~ ~ ( ~ ! [SY420: $i] :
                          ( ~ ( in @ SY420 @ SV59 )
                          | ( in @ SY420 @ SV193 ) )
                    | ~ ! [SY421: $i] :
                          ( ~ ( in @ SY421 @ SV179 )
                          | ( in @ SY421 @ SV193 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[818]) ).

thf(880,plain,
    ! [SV142: $i,SV109: $i,SV194: $i] :
      ( ( ( in @ SV194 @ ( set_intersection2 @ SV109 @ SV142 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV109 @ SV142 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[824]) ).

thf(881,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
              | ~ ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) ) )
        = $false )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[827]) ).

thf(882,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( ~ ( ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
              | ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) ) )
        = $false )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[827]) ).

thf(883,plain,
    ! [SV113: $i,SV146: $i] :
      ( ( ( ~ ! [SY362: $i] :
                ( ~ ( in @ SY362 @ SV146 )
                | ( subset @ SY362 @ SV113 ) )
          | ~ ! [SY363: $i] :
                ( ~ ( subset @ SY363 @ SV113 )
                | ( in @ SY363 @ SV146 ) ) )
        = $false )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[828]) ).

thf(884,plain,
    ! [SV114: $i,SV147: $i] :
      ( ( ( ~ ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV114 ) )
        = $false )
      | ( ( subset @ SV114 @ SV147 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[829]) ).

thf(885,plain,
    ! [SV114: $i,SV147: $i] :
      ( ( ( ~ ~ ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV147 ) )
        = $false )
      | ( ( subset @ SV114 @ SV147 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[829]) ).

thf(886,plain,
    ! [SV148: $i,SV115: $i,SV207: $i] :
      ( ( ( ~ ( in @ SV207 @ SV115 )
          | ( in @ SV207 @ SV148 ) )
        = $true )
      | ( ( subset @ SV115 @ SV148 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[830]) ).

thf(887,plain,
    ! [SV117: $i,SV195: $i] :
      ( ( ( in @ SV195 @ SV117 )
        = $false )
      | ( ( SV117 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[831]) ).

thf(888,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( ~ ( ( ( sK21_C @ SV155 @ SV124 )
               != SV124 )
              | ~ ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) ) )
        = $false )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[838]) ).

thf(889,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( ~ ( ( ( sK21_C @ SV155 @ SV124 )
                = SV124 )
              | ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) ) )
        = $false )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[838]) ).

thf(890,plain,
    ! [SV156: $i,SV125: $i] :
      ( ( ( ~ ! [SY365: $i] :
                ( ( SY365 != SV125 )
                | ( in @ SY365 @ SV156 ) )
          | ~ ! [SY366: $i] :
                ( ~ ( in @ SY366 @ SV156 )
                | ( SY366 = SV125 ) ) )
        = $false )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[839]) ).

thf(891,plain,
    ! [SV157: $i,SV180: $i,SV51: $i] :
      ( ( ( ~ ( in @ SV51 @ SV180 ) )
        = $true )
      | ( ( ~ ( in @ SV157 @ SV180 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV51 @ SV157 ) @ SV180 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[840]) ).

thf(892,plain,
    ! [SV208: $i,SV51: $i] :
      ( ( ! [SY430: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV51 @ SV208 ) @ SY430 )
            | ( in @ SV51 @ SY430 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[841]) ).

thf(893,plain,
    ! [SV209: $i,SV51: $i] :
      ( ( ! [SY431: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV51 @ SV209 ) @ SY431 )
            | ( in @ SV209 @ SY431 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[842]) ).

thf(894,plain,
    ! [SV196: $i,SV95: $i,SV181: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV181 )
          | ~ ( in @ SV95 @ SV196 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV181 @ SV196 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[843]) ).

thf(895,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ! [SY312: $i] :
            ( ! [SY313: $i] :
                ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY312 @ SY313 ) )
            | ( in @ SV52 @ SY312 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[844]) ).

thf(896,plain,
    ! [SV95: $i,SV52: $i] :
      ( ( ! [SY314: $i,SY315: $i] :
            ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SY314 @ SY315 ) )
            | ( in @ SV95 @ SY315 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[845]) ).

thf(897,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
              | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
              | ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
          | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
                    | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
                    | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) ) ) )
        = $false )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[846]) ).

thf(898,plain,
    ! [SV159: $i,SV53: $i,SV183: $i] :
      ( ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY402: $i] :
                    ( ~ ( in @ SY402 @ SV53 )
                    | ( in @ SY402 @ SV159 )
                    | ( in @ SY402 @ SV183 ) )
              | ~ ~ ( ~ ! [SY403: $i] :
                          ( ~ ( in @ SY403 @ SV183 )
                          | ( in @ SY403 @ SV53 ) )
                    | ~ ! [SY404: $i] :
                          ( ~ ( in @ SY404 @ SV183 )
                          | ~ ( in @ SY404 @ SV159 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[847]) ).

thf(899,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ~ ( ! [SY373: $i] :
                  ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SY373 )
                  | ~ ( in @ SY373 @ SV126 ) )
              | ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) ) )
        = $false )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[848]) ).

thf(900,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ ( sK9_SY187 @ SV160 @ SV126 ) )
                  | ~ ( in @ ( sK9_SY187 @ SV160 @ SV126 ) @ SV126 ) )
              | ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) ) )
        = $false )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[848]) ).

thf(901,plain,
    ! [SV161: $i,SV127: $i] :
      ( ( ( ~ ! [SY374: $i] :
                ( ! [SY348: $i] :
                    ( ~ ( in @ SY374 @ SY348 )
                    | ~ ( in @ SY348 @ SV127 ) )
                | ( in @ SY374 @ SV161 ) )
          | ~ ! [SY376: $i] :
                ( ~ ( in @ SY376 @ SV161 )
                | ~ ( ~ ( in @ SY376 @ ( sK7_D @ SY376 @ SV161 @ SV127 ) )
                    | ~ ( in @ ( sK7_D @ SY376 @ SV161 @ SV127 ) @ SV127 ) ) ) )
        = $false )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[849]) ).

thf(902,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                    | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                     != SV54 ) )
                | ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                    | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                     != SV162 ) ) )
          | ~ ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
              | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                = SV54 )
              | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                = SV162 ) ) )
        = $false )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[850]) ).

thf(903,plain,
    ! [SV163: $i,SV54: $i,SV185: $i] :
      ( ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY405: $i] :
                    ( ~ ( in @ SY405 @ SV185 )
                    | ( SY405 = SV54 )
                    | ( SY405 = SV163 ) )
              | ~ ~ ( ~ ! [SY406: $i] :
                          ( ( SY406 != SV54 )
                          | ( in @ SY406 @ SV185 ) )
                    | ~ ! [SY407: $i] :
                          ( ( SY407 != SV163 )
                          | ( in @ SY407 @ SV185 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[851]) ).

thf(904,plain,
    ! [SV164: $i,SV128: $i] :
      ( ( ( SV128 = empty_set )
        = $true )
      | ( ( SV128
          = ( singleton @ SV164 ) )
        = $true )
      | ( ( subset @ SV128 @ ( singleton @ SV164 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[852]) ).

thf(905,plain,
    ! [SV197: $i] :
      ( ( ( ( SV197 != empty_set ) )
        = $true )
      | ( ( ! [SY422: $i] : ( subset @ SV197 @ ( singleton @ SY422 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[853]) ).

thf(906,plain,
    ! [SV210: $i,SV198: $i] :
      ( ( ( SV198
         != ( singleton @ SV210 ) )
        | ( subset @ SV198 @ ( singleton @ SV210 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[854]) ).

thf(907,plain,
    ! [SV186: $i,SV167: $i,SV55: $i] :
      ( ( ( ~ ( ! [SY408: $i,SY409: $i] :
                  ( ~ ( in @ SY408 @ SV55 )
                  | ~ ( in @ SY409 @ SV167 )
                  | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
                   != ( ordered_pair @ SY408 @ SY409 ) ) )
              | ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
          | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
                        | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) )
                  | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
                   != ( ordered_pair @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) ) ) )
              | ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) ) )
        = $false )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[857]) ).

thf(908,plain,
    ! [SV168: $i,SV55: $i,SV187: $i] :
      ( ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY410: $i] :
                    ( ! [SY387: $i,SY388: $i] :
                        ( ~ ( in @ SY387 @ SV55 )
                        | ~ ( in @ SY388 @ SV168 )
                        | ( SY410
                         != ( ordered_pair @ SY387 @ SY388 ) ) )
                    | ( in @ SY410 @ SV187 ) )
              | ~ ! [SY413: $i] :
                    ( ~ ( in @ SY413 @ SV187 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                              | ~ ( in @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
                        | ( SY413
                         != ( ordered_pair @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[858]) ).

thf(909,plain,
    ! [SV211: $i,SV188: $i,SV96: $i,SV56: $i] :
      ( ( ( ( ( ordered_pair @ SV56 @ SV96 )
           != ( ordered_pair @ SV188 @ SV211 ) ) )
        = $true )
      | ( ( SV56 = SV188 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[859]) ).

thf(910,plain,
    ! [SV199: $i,SV189: $i,SV96: $i,SV56: $i] :
      ( ( ( ( ( ordered_pair @ SV56 @ SV96 )
           != ( ordered_pair @ SV189 @ SV199 ) ) )
        = $true )
      | ( ( SV96 = SV199 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[860]) ).

thf(911,plain,
    ! [SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV131 ) )
        = $false )
      | ( ( disjoint @ SV131 @ SV169 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[861]) ).

thf(912,plain,
    ! [SV131: $i,SV169: $i] :
      ( ( ( ~ ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV169 ) )
        = $false )
      | ( ( disjoint @ SV131 @ SV169 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[861]) ).

thf(913,plain,
    ! [SV170: $i,SV132: $i,SV200: $i] :
      ( ( ( ~ ( in @ SV200 @ SV132 ) )
        = $true )
      | ( ( ~ ( in @ SV200 @ SV170 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV132 @ SV170 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[862]) ).

thf(914,plain,
    ! [SV171: $i,SV133: $i] :
      ( ( ( subset @ SV133 @ SV171 )
        = $false )
      | ( ( SV133 = SV171 )
        = $true )
      | ( ( proper_subset @ SV133 @ SV171 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[863]) ).

thf(915,plain,
    ! [SV212: $i,SV201: $i] :
      ( ( ~ ( proper_subset @ SV201 @ SV212 )
        | ( SV201 != SV212 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[864]) ).

thf(916,plain,
    ! [SV213: $i,SV202: $i] :
      ( ( ~ ( proper_subset @ SV202 @ SV213 )
        | ( subset @ SV202 @ SV213 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[865]) ).

thf(917,plain,
    ! [SV172: $i,SV134: $i] :
      ( ( ( SV134 = empty_set )
        = $true )
      | ( ( SV134
          = ( singleton @ SV172 ) )
        = $true )
      | ( ( subset @ SV134 @ ( singleton @ SV172 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[866]) ).

thf(918,plain,
    ! [SV203: $i] :
      ( ( ( ( SV203 != empty_set ) )
        = $true )
      | ( ( ! [SY426: $i] : ( subset @ SV203 @ ( singleton @ SY426 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[867]) ).

thf(919,plain,
    ! [SV214: $i,SV204: $i] :
      ( ( ( SV204
         != ( singleton @ SV214 ) )
        | ( subset @ SV204 @ ( singleton @ SV214 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[868]) ).

thf(920,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
        = $false )
      | ( ( ~ ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 ) )
        = $true )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[869]) ).

thf(921,plain,
    ! [SV173: $i,SV135: $i] :
      ( ( ( subset @ SV135 @ SV173 )
        = $false )
      | ( ( ~ ( subset @ SV173 @ SV135 ) )
        = $true )
      | ( ( SV135 = SV173 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[871]) ).

thf(922,plain,
    ! [SV215: $i,SV205: $i] :
      ( ( ( SV205 != SV215 )
        | ( subset @ SV205 @ SV215 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[872]) ).

thf(923,plain,
    ! [SV216: $i,SV206: $i] :
      ( ( ( SV206 != SV216 )
        | ( subset @ SV216 @ SV206 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[873]) ).

thf(924,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
              | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
              | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
          | ~ ~ ( ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
                    | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
                | ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
                    | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) ) ) )
        = $false )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[874]) ).

thf(925,plain,
    ! [SV175: $i,SV58: $i,SV191: $i] :
      ( ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY416: $i] :
                    ( ~ ( in @ SY416 @ SV58 )
                    | ~ ( in @ SY416 @ SV175 )
                    | ( in @ SY416 @ SV191 ) )
              | ~ ~ ( ~ ! [SY417: $i] :
                          ( ~ ( in @ SY417 @ SV191 )
                          | ( in @ SY417 @ SV58 ) )
                    | ~ ! [SY418: $i] :
                          ( ~ ( in @ SY418 @ SV191 )
                          | ( in @ SY418 @ SV175 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[875]) ).

thf(926,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                    | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) )
                | ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                    | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) )
          | ~ ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
              | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 )
              | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[878]) ).

thf(927,plain,
    ! [SV179: $i,SV59: $i,SV193: $i] :
      ( ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY419: $i] :
                    ( ~ ( in @ SY419 @ SV193 )
                    | ( in @ SY419 @ SV59 )
                    | ( in @ SY419 @ SV179 ) )
              | ~ ~ ( ~ ! [SY420: $i] :
                          ( ~ ( in @ SY420 @ SV59 )
                          | ( in @ SY420 @ SV193 ) )
                    | ~ ! [SY421: $i] :
                          ( ~ ( in @ SY421 @ SV179 )
                          | ( in @ SY421 @ SV193 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[879]) ).

thf(928,plain,
    ! [SV194: $i,SV142: $i,SV109: $i] :
      ( ( ( disjoint @ SV109 @ SV142 )
        = $false )
      | ( ( in @ SV194 @ ( set_intersection2 @ SV109 @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[880]) ).

thf(929,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
          | ~ ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) )
        = $true )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[881]) ).

thf(930,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
          | ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) )
        = $true )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[882]) ).

thf(931,plain,
    ! [SV113: $i,SV146: $i] :
      ( ( ( ~ ! [SY362: $i] :
                ( ~ ( in @ SY362 @ SV146 )
                | ( subset @ SY362 @ SV113 ) ) )
        = $false )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[883]) ).

thf(932,plain,
    ! [SV146: $i,SV113: $i] :
      ( ( ( ~ ! [SY363: $i] :
                ( ~ ( subset @ SY363 @ SV113 )
                | ( in @ SY363 @ SV146 ) ) )
        = $false )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[883]) ).

thf(933,plain,
    ! [SV114: $i,SV147: $i] :
      ( ( ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV114 )
        = $true )
      | ( ( subset @ SV114 @ SV147 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[884]) ).

thf(934,plain,
    ! [SV114: $i,SV147: $i] :
      ( ( ( ~ ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV147 ) )
        = $true )
      | ( ( subset @ SV114 @ SV147 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[885]) ).

thf(935,plain,
    ! [SV148: $i,SV115: $i,SV207: $i] :
      ( ( ( ~ ( in @ SV207 @ SV115 ) )
        = $true )
      | ( ( in @ SV207 @ SV148 )
        = $true )
      | ( ( subset @ SV115 @ SV148 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[886]) ).

thf(936,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( ( ( sK21_C @ SV155 @ SV124 )
           != SV124 )
          | ~ ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[888]) ).

thf(937,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( ( ( sK21_C @ SV155 @ SV124 )
            = SV124 )
          | ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[889]) ).

thf(938,plain,
    ! [SV156: $i,SV125: $i] :
      ( ( ( ~ ! [SY365: $i] :
                ( ( SY365 != SV125 )
                | ( in @ SY365 @ SV156 ) ) )
        = $false )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[890]) ).

thf(939,plain,
    ! [SV125: $i,SV156: $i] :
      ( ( ( ~ ! [SY366: $i] :
                ( ~ ( in @ SY366 @ SV156 )
                | ( SY366 = SV125 ) ) )
        = $false )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[890]) ).

thf(940,plain,
    ! [SV157: $i,SV180: $i,SV51: $i] :
      ( ( ( in @ SV51 @ SV180 )
        = $false )
      | ( ( ~ ( in @ SV157 @ SV180 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV51 @ SV157 ) @ SV180 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[891]) ).

thf(941,plain,
    ! [SV217: $i,SV208: $i,SV51: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV51 @ SV208 ) @ SV217 )
        | ( in @ SV51 @ SV217 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[892]) ).

thf(942,plain,
    ! [SV218: $i,SV209: $i,SV51: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV51 @ SV209 ) @ SV218 )
        | ( in @ SV209 @ SV218 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[893]) ).

thf(943,plain,
    ! [SV196: $i,SV95: $i,SV181: $i,SV52: $i] :
      ( ( ( ~ ( in @ SV52 @ SV181 ) )
        = $true )
      | ( ( ~ ( in @ SV95 @ SV196 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV181 @ SV196 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[894]) ).

thf(944,plain,
    ! [SV219: $i,SV95: $i,SV52: $i] :
      ( ( ! [SY432: $i] :
            ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV219 @ SY432 ) )
        | ( in @ SV52 @ SV219 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[895]) ).

thf(945,plain,
    ! [SV220: $i,SV95: $i,SV52: $i] :
      ( ( ! [SY433: $i] :
            ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV220 @ SY433 ) )
            | ( in @ SV95 @ SY433 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[896]) ).

thf(946,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
              | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
              | ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) ) )
        = $false )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[897]) ).

thf(947,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
                    | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
                    | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) ) ) )
        = $false )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[897]) ).

thf(948,plain,
    ! [SV183: $i,SV159: $i,SV53: $i] :
      ( ( ( ~ ! [SY402: $i] :
                ( ~ ( in @ SY402 @ SV53 )
                | ( in @ SY402 @ SV159 )
                | ( in @ SY402 @ SV183 ) )
          | ~ ~ ( ~ ! [SY403: $i] :
                      ( ~ ( in @ SY403 @ SV183 )
                      | ( in @ SY403 @ SV53 ) )
                | ~ ! [SY404: $i] :
                      ( ~ ( in @ SY404 @ SV183 )
                      | ~ ( in @ SY404 @ SV159 ) ) ) )
        = $false )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[898]) ).

thf(949,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ! [SY373: $i] :
              ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SY373 )
              | ~ ( in @ SY373 @ SV126 ) )
          | ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[899]) ).

thf(950,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ ( sK9_SY187 @ SV160 @ SV126 ) )
              | ~ ( in @ ( sK9_SY187 @ SV160 @ SV126 ) @ SV126 ) )
          | ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[900]) ).

thf(951,plain,
    ! [SV161: $i,SV127: $i] :
      ( ( ( ~ ! [SY374: $i] :
                ( ! [SY348: $i] :
                    ( ~ ( in @ SY374 @ SY348 )
                    | ~ ( in @ SY348 @ SV127 ) )
                | ( in @ SY374 @ SV161 ) ) )
        = $false )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[901]) ).

thf(952,plain,
    ! [SV127: $i,SV161: $i] :
      ( ( ( ~ ! [SY376: $i] :
                ( ~ ( in @ SY376 @ SV161 )
                | ~ ( ~ ( in @ SY376 @ ( sK7_D @ SY376 @ SV161 @ SV127 ) )
                    | ~ ( in @ ( sK7_D @ SY376 @ SV161 @ SV127 ) @ SV127 ) ) ) )
        = $false )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[901]) ).

thf(953,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                    | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                     != SV54 ) )
                | ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                    | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                     != SV162 ) ) ) )
        = $false )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[902]) ).

thf(954,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
              | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                = SV54 )
              | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                = SV162 ) ) )
        = $false )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[902]) ).

thf(955,plain,
    ! [SV163: $i,SV54: $i,SV185: $i] :
      ( ( ( ~ ! [SY405: $i] :
                ( ~ ( in @ SY405 @ SV185 )
                | ( SY405 = SV54 )
                | ( SY405 = SV163 ) )
          | ~ ~ ( ~ ! [SY406: $i] :
                      ( ( SY406 != SV54 )
                      | ( in @ SY406 @ SV185 ) )
                | ~ ! [SY407: $i] :
                      ( ( SY407 != SV163 )
                      | ( in @ SY407 @ SV185 ) ) ) )
        = $false )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[903]) ).

thf(956,plain,
    ! [SV197: $i] :
      ( ( ( SV197 = empty_set )
        = $false )
      | ( ( ! [SY422: $i] : ( subset @ SV197 @ ( singleton @ SY422 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[905]) ).

thf(957,plain,
    ! [SV210: $i,SV198: $i] :
      ( ( ( ( SV198
           != ( singleton @ SV210 ) ) )
        = $true )
      | ( ( subset @ SV198 @ ( singleton @ SV210 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[906]) ).

thf(958,plain,
    ! [SV186: $i,SV167: $i,SV55: $i] :
      ( ( ( ~ ( ! [SY408: $i,SY409: $i] :
                  ( ~ ( in @ SY408 @ SV55 )
                  | ~ ( in @ SY409 @ SV167 )
                  | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
                   != ( ordered_pair @ SY408 @ SY409 ) ) )
              | ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) ) )
        = $false )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[907]) ).

thf(959,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
                        | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) )
                  | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
                   != ( ordered_pair @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) ) ) )
              | ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) ) )
        = $false )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[907]) ).

thf(960,plain,
    ! [SV187: $i,SV168: $i,SV55: $i] :
      ( ( ( ~ ! [SY410: $i] :
                ( ! [SY387: $i,SY388: $i] :
                    ( ~ ( in @ SY387 @ SV55 )
                    | ~ ( in @ SY388 @ SV168 )
                    | ( SY410
                     != ( ordered_pair @ SY387 @ SY388 ) ) )
                | ( in @ SY410 @ SV187 ) )
          | ~ ! [SY413: $i] :
                ( ~ ( in @ SY413 @ SV187 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                          | ~ ( in @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
                    | ( SY413
                     != ( ordered_pair @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) ) ) ) ) )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[908]) ).

thf(961,plain,
    ! [SV211: $i,SV188: $i,SV96: $i,SV56: $i] :
      ( ( ( ( ordered_pair @ SV56 @ SV96 )
          = ( ordered_pair @ SV188 @ SV211 ) )
        = $false )
      | ( ( SV56 = SV188 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[909]) ).

thf(962,plain,
    ! [SV199: $i,SV189: $i,SV96: $i,SV56: $i] :
      ( ( ( ( ordered_pair @ SV56 @ SV96 )
          = ( ordered_pair @ SV189 @ SV199 ) )
        = $false )
      | ( ( SV96 = SV199 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[910]) ).

thf(963,plain,
    ! [SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV131 )
        = $true )
      | ( ( disjoint @ SV131 @ SV169 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[911]) ).

thf(964,plain,
    ! [SV131: $i,SV169: $i] :
      ( ( ( in @ ( sK23_C @ SV169 @ SV131 ) @ SV169 )
        = $true )
      | ( ( disjoint @ SV131 @ SV169 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[912]) ).

thf(965,plain,
    ! [SV170: $i,SV132: $i,SV200: $i] :
      ( ( ( in @ SV200 @ SV132 )
        = $false )
      | ( ( ~ ( in @ SV200 @ SV170 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV132 @ SV170 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[913]) ).

thf(966,plain,
    ! [SV212: $i,SV201: $i] :
      ( ( ( ~ ( proper_subset @ SV201 @ SV212 ) )
        = $true )
      | ( ( ( SV201 != SV212 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[915]) ).

thf(967,plain,
    ! [SV213: $i,SV202: $i] :
      ( ( ( ~ ( proper_subset @ SV202 @ SV213 ) )
        = $true )
      | ( ( subset @ SV202 @ SV213 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[916]) ).

thf(968,plain,
    ! [SV203: $i] :
      ( ( ( SV203 = empty_set )
        = $false )
      | ( ( ! [SY426: $i] : ( subset @ SV203 @ ( singleton @ SY426 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[918]) ).

thf(969,plain,
    ! [SV214: $i,SV204: $i] :
      ( ( ( ( SV204
           != ( singleton @ SV214 ) ) )
        = $true )
      | ( ( subset @ SV204 @ ( singleton @ SV214 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[919]) ).

thf(970,plain,
    ! [SV57: $i,SV97: $i] :
      ( ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV97 )
        = $false )
      | ( ( in @ ( sK3_C @ SV97 @ SV57 ) @ SV57 )
        = $false )
      | ( ( SV57 = SV97 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[920]) ).

thf(971,plain,
    ! [SV135: $i,SV173: $i] :
      ( ( ( subset @ SV173 @ SV135 )
        = $false )
      | ( ( subset @ SV135 @ SV173 )
        = $false )
      | ( ( SV135 = SV173 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[921]) ).

thf(972,plain,
    ! [SV215: $i,SV205: $i] :
      ( ( ( ( SV205 != SV215 ) )
        = $true )
      | ( ( subset @ SV205 @ SV215 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[922]) ).

thf(973,plain,
    ! [SV216: $i,SV206: $i] :
      ( ( ( ( SV206 != SV216 ) )
        = $true )
      | ( ( subset @ SV216 @ SV206 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[923]) ).

thf(974,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
              | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
              | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) ) )
        = $false )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[924]) ).

thf(975,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
                    | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
                | ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
                    | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) ) ) )
        = $false )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[924]) ).

thf(976,plain,
    ! [SV191: $i,SV175: $i,SV58: $i] :
      ( ( ( ~ ! [SY416: $i] :
                ( ~ ( in @ SY416 @ SV58 )
                | ~ ( in @ SY416 @ SV175 )
                | ( in @ SY416 @ SV191 ) )
          | ~ ~ ( ~ ! [SY417: $i] :
                      ( ~ ( in @ SY417 @ SV191 )
                      | ( in @ SY417 @ SV58 ) )
                | ~ ! [SY418: $i] :
                      ( ~ ( in @ SY418 @ SV191 )
                      | ( in @ SY418 @ SV175 ) ) ) )
        = $false )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[925]) ).

thf(977,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                    | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) )
                | ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                    | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[926]) ).

thf(978,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
              | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 )
              | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[926]) ).

thf(979,plain,
    ! [SV179: $i,SV59: $i,SV193: $i] :
      ( ( ( ~ ! [SY419: $i] :
                ( ~ ( in @ SY419 @ SV193 )
                | ( in @ SY419 @ SV59 )
                | ( in @ SY419 @ SV179 ) )
          | ~ ~ ( ~ ! [SY420: $i] :
                      ( ~ ( in @ SY420 @ SV59 )
                      | ( in @ SY420 @ SV193 ) )
                | ~ ! [SY421: $i] :
                      ( ~ ( in @ SY421 @ SV179 )
                      | ( in @ SY421 @ SV193 ) ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[927]) ).

thf(980,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( ~ ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) )
        = $true )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[929]) ).

thf(981,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
        = $true )
      | ( ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 )
        = $true )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[930]) ).

thf(982,plain,
    ! [SV113: $i,SV146: $i] :
      ( ( ( ! [SY362: $i] :
              ( ~ ( in @ SY362 @ SV146 )
              | ( subset @ SY362 @ SV113 ) ) )
        = $true )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[931]) ).

thf(983,plain,
    ! [SV146: $i,SV113: $i] :
      ( ( ( ! [SY363: $i] :
              ( ~ ( subset @ SY363 @ SV113 )
              | ( in @ SY363 @ SV146 ) ) )
        = $true )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[932]) ).

thf(984,plain,
    ! [SV114: $i,SV147: $i] :
      ( ( ( in @ ( sK11_C @ SV147 @ SV114 ) @ SV147 )
        = $false )
      | ( ( subset @ SV114 @ SV147 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[934]) ).

thf(985,plain,
    ! [SV148: $i,SV115: $i,SV207: $i] :
      ( ( ( in @ SV207 @ SV115 )
        = $false )
      | ( ( in @ SV207 @ SV148 )
        = $true )
      | ( ( subset @ SV115 @ SV148 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[935]) ).

thf(986,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( ( ( sK21_C @ SV155 @ SV124 )
           != SV124 ) )
        = $true )
      | ( ( ~ ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[936]) ).

thf(987,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( ( sK21_C @ SV155 @ SV124 )
          = SV124 )
        = $true )
      | ( ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 )
        = $true )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[937]) ).

thf(988,plain,
    ! [SV156: $i,SV125: $i] :
      ( ( ( ! [SY365: $i] :
              ( ( SY365 != SV125 )
              | ( in @ SY365 @ SV156 ) ) )
        = $true )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[938]) ).

thf(989,plain,
    ! [SV125: $i,SV156: $i] :
      ( ( ( ! [SY366: $i] :
              ( ~ ( in @ SY366 @ SV156 )
              | ( SY366 = SV125 ) ) )
        = $true )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[939]) ).

thf(990,plain,
    ! [SV51: $i,SV180: $i,SV157: $i] :
      ( ( ( in @ SV157 @ SV180 )
        = $false )
      | ( ( in @ SV51 @ SV180 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV51 @ SV157 ) @ SV180 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[940]) ).

thf(991,plain,
    ! [SV217: $i,SV208: $i,SV51: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV51 @ SV208 ) @ SV217 ) )
        = $true )
      | ( ( in @ SV51 @ SV217 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[941]) ).

thf(992,plain,
    ! [SV218: $i,SV209: $i,SV51: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV51 @ SV209 ) @ SV218 ) )
        = $true )
      | ( ( in @ SV209 @ SV218 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[942]) ).

thf(993,plain,
    ! [SV196: $i,SV95: $i,SV181: $i,SV52: $i] :
      ( ( ( in @ SV52 @ SV181 )
        = $false )
      | ( ( ~ ( in @ SV95 @ SV196 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV181 @ SV196 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[943]) ).

thf(994,plain,
    ! [SV219: $i,SV95: $i,SV52: $i] :
      ( ( ( ! [SY432: $i] :
              ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV219 @ SY432 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV219 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[944]) ).

thf(995,plain,
    ! [SV221: $i,SV220: $i,SV95: $i,SV52: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV220 @ SV221 ) )
        | ( in @ SV95 @ SV221 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[945]) ).

thf(996,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
          | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
          | ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[946]) ).

thf(997,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
                  | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
              | ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
                  | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) ) ) )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[947]) ).

thf(998,plain,
    ! [SV183: $i,SV159: $i,SV53: $i] :
      ( ( ( ~ ! [SY402: $i] :
                ( ~ ( in @ SY402 @ SV53 )
                | ( in @ SY402 @ SV159 )
                | ( in @ SY402 @ SV183 ) ) )
        = $false )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[948]) ).

thf(999,plain,
    ! [SV159: $i,SV53: $i,SV183: $i] :
      ( ( ( ~ ~ ( ~ ! [SY403: $i] :
                      ( ~ ( in @ SY403 @ SV183 )
                      | ( in @ SY403 @ SV53 ) )
                | ~ ! [SY404: $i] :
                      ( ~ ( in @ SY404 @ SV183 )
                      | ~ ( in @ SY404 @ SV159 ) ) ) )
        = $false )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[948]) ).

thf(1000,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ! [SY373: $i] :
              ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SY373 )
              | ~ ( in @ SY373 @ SV126 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[949]) ).

thf(1001,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ ( sK9_SY187 @ SV160 @ SV126 ) )
              | ~ ( in @ ( sK9_SY187 @ SV160 @ SV126 ) @ SV126 ) ) )
        = $true )
      | ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[950]) ).

thf(1002,plain,
    ! [SV161: $i,SV127: $i] :
      ( ( ( ! [SY374: $i] :
              ( ! [SY348: $i] :
                  ( ~ ( in @ SY374 @ SY348 )
                  | ~ ( in @ SY348 @ SV127 ) )
              | ( in @ SY374 @ SV161 ) ) )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[951]) ).

thf(1003,plain,
    ! [SV127: $i,SV161: $i] :
      ( ( ( ! [SY376: $i] :
              ( ~ ( in @ SY376 @ SV161 )
              | ~ ( ~ ( in @ SY376 @ ( sK7_D @ SY376 @ SV161 @ SV127 ) )
                  | ~ ( in @ ( sK7_D @ SY376 @ SV161 @ SV127 ) @ SV127 ) ) ) )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[952]) ).

thf(1004,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                  | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                   != SV54 ) )
              | ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
                  | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
                   != SV162 ) ) ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[953]) ).

thf(1005,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
          | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
            = SV54 )
          | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
            = SV162 ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[954]) ).

thf(1006,plain,
    ! [SV163: $i,SV54: $i,SV185: $i] :
      ( ( ( ~ ! [SY405: $i] :
                ( ~ ( in @ SY405 @ SV185 )
                | ( SY405 = SV54 )
                | ( SY405 = SV163 ) ) )
        = $false )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[955]) ).

thf(1007,plain,
    ! [SV163: $i,SV185: $i,SV54: $i] :
      ( ( ( ~ ~ ( ~ ! [SY406: $i] :
                      ( ( SY406 != SV54 )
                      | ( in @ SY406 @ SV185 ) )
                | ~ ! [SY407: $i] :
                      ( ( SY407 != SV163 )
                      | ( in @ SY407 @ SV185 ) ) ) )
        = $false )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[955]) ).

thf(1008,plain,
    ! [SV222: $i,SV197: $i] :
      ( ( ( subset @ SV197 @ ( singleton @ SV222 ) )
        = $true )
      | ( ( SV197 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[956]) ).

thf(1009,plain,
    ! [SV210: $i,SV198: $i] :
      ( ( ( SV198
          = ( singleton @ SV210 ) )
        = $false )
      | ( ( subset @ SV198 @ ( singleton @ SV210 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[957]) ).

thf(1010,plain,
    ! [SV186: $i,SV167: $i,SV55: $i] :
      ( ( ( ! [SY408: $i,SY409: $i] :
              ( ~ ( in @ SY408 @ SV55 )
              | ~ ( in @ SY409 @ SV167 )
              | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
               != ( ordered_pair @ SY408 @ SY409 ) ) )
          | ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[958]) ).

thf(1011,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
                    | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) )
              | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
               != ( ordered_pair @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) ) ) )
          | ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[959]) ).

thf(1012,plain,
    ! [SV187: $i,SV168: $i,SV55: $i] :
      ( ( ( ~ ! [SY410: $i] :
                ( ! [SY387: $i,SY388: $i] :
                    ( ~ ( in @ SY387 @ SV55 )
                    | ~ ( in @ SY388 @ SV168 )
                    | ( SY410
                     != ( ordered_pair @ SY387 @ SY388 ) ) )
                | ( in @ SY410 @ SV187 ) ) )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[960]) ).

thf(1013,plain,
    ! [SV55: $i,SV168: $i,SV187: $i] :
      ( ( ( ~ ! [SY413: $i] :
                ( ~ ( in @ SY413 @ SV187 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                          | ~ ( in @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
                    | ( SY413
                     != ( ordered_pair @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) ) ) ) ) )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[960]) ).

thf(1014,plain,
    ! [SV132: $i,SV170: $i,SV200: $i] :
      ( ( ( in @ SV200 @ SV170 )
        = $false )
      | ( ( in @ SV200 @ SV132 )
        = $false )
      | ( ( ~ ( disjoint @ SV132 @ SV170 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[965]) ).

thf(1015,plain,
    ! [SV212: $i,SV201: $i] :
      ( ( ( proper_subset @ SV201 @ SV212 )
        = $false )
      | ( ( ( SV201 != SV212 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[966]) ).

thf(1016,plain,
    ! [SV213: $i,SV202: $i] :
      ( ( ( proper_subset @ SV202 @ SV213 )
        = $false )
      | ( ( subset @ SV202 @ SV213 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[967]) ).

thf(1017,plain,
    ! [SV223: $i,SV203: $i] :
      ( ( ( subset @ SV203 @ ( singleton @ SV223 ) )
        = $true )
      | ( ( SV203 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[968]) ).

thf(1018,plain,
    ! [SV214: $i,SV204: $i] :
      ( ( ( SV204
          = ( singleton @ SV214 ) )
        = $false )
      | ( ( subset @ SV204 @ ( singleton @ SV214 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[969]) ).

thf(1019,plain,
    ! [SV215: $i,SV205: $i] :
      ( ( ( SV205 = SV215 )
        = $false )
      | ( ( subset @ SV205 @ SV215 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[972]) ).

thf(1020,plain,
    ! [SV216: $i,SV206: $i] :
      ( ( ( SV206 = SV216 )
        = $false )
      | ( ( subset @ SV216 @ SV206 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[973]) ).

thf(1021,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
          | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
          | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[974]) ).

thf(1022,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
                  | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
              | ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
                  | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) ) ) )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[975]) ).

thf(1023,plain,
    ! [SV191: $i,SV175: $i,SV58: $i] :
      ( ( ( ~ ! [SY416: $i] :
                ( ~ ( in @ SY416 @ SV58 )
                | ~ ( in @ SY416 @ SV175 )
                | ( in @ SY416 @ SV191 ) ) )
        = $false )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[976]) ).

thf(1024,plain,
    ! [SV175: $i,SV58: $i,SV191: $i] :
      ( ( ( ~ ~ ( ~ ! [SY417: $i] :
                      ( ~ ( in @ SY417 @ SV191 )
                      | ( in @ SY417 @ SV58 ) )
                | ~ ! [SY418: $i] :
                      ( ~ ( in @ SY418 @ SV191 )
                      | ( in @ SY418 @ SV175 ) ) ) )
        = $false )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[976]) ).

thf(1025,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                  | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) )
              | ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
                  | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[977]) ).

thf(1026,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
          | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 )
          | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[978]) ).

thf(1027,plain,
    ! [SV179: $i,SV59: $i,SV193: $i] :
      ( ( ( ~ ! [SY419: $i] :
                ( ~ ( in @ SY419 @ SV193 )
                | ( in @ SY419 @ SV59 )
                | ( in @ SY419 @ SV179 ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[979]) ).

thf(1028,plain,
    ! [SV179: $i,SV193: $i,SV59: $i] :
      ( ( ( ~ ~ ( ~ ! [SY420: $i] :
                      ( ~ ( in @ SY420 @ SV59 )
                      | ( in @ SY420 @ SV193 ) )
                | ~ ! [SY421: $i] :
                      ( ~ ( in @ SY421 @ SV179 )
                      | ( in @ SY421 @ SV193 ) ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[979]) ).

thf(1029,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
        = $false )
      | ( ( ~ ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 ) )
        = $true )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[980]) ).

thf(1030,plain,
    ! [SV113: $i,SV146: $i,SV224: $i] :
      ( ( ( ~ ( in @ SV224 @ SV146 )
          | ( subset @ SV224 @ SV113 ) )
        = $true )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[982]) ).

thf(1031,plain,
    ! [SV146: $i,SV113: $i,SV225: $i] :
      ( ( ( ~ ( subset @ SV225 @ SV113 )
          | ( in @ SV225 @ SV146 ) )
        = $true )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[983]) ).

thf(1032,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( ( sK21_C @ SV155 @ SV124 )
          = SV124 )
        = $false )
      | ( ( ~ ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[986]) ).

thf(1033,plain,
    ! [SV156: $i,SV125: $i,SV226: $i] :
      ( ( ( ( SV226 != SV125 )
          | ( in @ SV226 @ SV156 ) )
        = $true )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[988]) ).

thf(1034,plain,
    ! [SV125: $i,SV156: $i,SV227: $i] :
      ( ( ( ~ ( in @ SV227 @ SV156 )
          | ( SV227 = SV125 ) )
        = $true )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[989]) ).

thf(1035,plain,
    ! [SV217: $i,SV208: $i,SV51: $i] :
      ( ( ( subset @ ( unordered_pair @ SV51 @ SV208 ) @ SV217 )
        = $false )
      | ( ( in @ SV51 @ SV217 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[991]) ).

thf(1036,plain,
    ! [SV218: $i,SV209: $i,SV51: $i] :
      ( ( ( subset @ ( unordered_pair @ SV51 @ SV209 ) @ SV218 )
        = $false )
      | ( ( in @ SV209 @ SV218 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[992]) ).

thf(1037,plain,
    ! [SV181: $i,SV52: $i,SV196: $i,SV95: $i] :
      ( ( ( in @ SV95 @ SV196 )
        = $false )
      | ( ( in @ SV52 @ SV181 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV181 @ SV196 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[993]) ).

thf(1038,plain,
    ! [SV228: $i,SV219: $i,SV95: $i,SV52: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV219 @ SV228 ) ) )
        = $true )
      | ( ( in @ SV52 @ SV219 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[994]) ).

thf(1039,plain,
    ! [SV221: $i,SV220: $i,SV95: $i,SV52: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV220 @ SV221 ) ) )
        = $true )
      | ( ( in @ SV95 @ SV221 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[995]) ).

thf(1040,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
          | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 ) )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[996]) ).

thf(1041,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
              | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
          | ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
              | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) ) )
        = $false )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[997]) ).

thf(1042,plain,
    ! [SV183: $i,SV159: $i,SV53: $i] :
      ( ( ( ! [SY402: $i] :
              ( ~ ( in @ SY402 @ SV53 )
              | ( in @ SY402 @ SV159 )
              | ( in @ SY402 @ SV183 ) ) )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[998]) ).

thf(1043,plain,
    ! [SV159: $i,SV53: $i,SV183: $i] :
      ( ( ( ~ ( ~ ! [SY403: $i] :
                    ( ~ ( in @ SY403 @ SV183 )
                    | ( in @ SY403 @ SV53 ) )
              | ~ ! [SY404: $i] :
                    ( ~ ( in @ SY404 @ SV183 )
                    | ~ ( in @ SY404 @ SV159 ) ) ) )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[999]) ).

thf(1044,plain,
    ! [SV229: $i,SV126: $i,SV160: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV229 )
          | ~ ( in @ SV229 @ SV126 ) )
        = $true )
      | ( ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1000]) ).

thf(1045,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ ( sK9_SY187 @ SV160 @ SV126 ) )
          | ~ ( in @ ( sK9_SY187 @ SV160 @ SV126 ) @ SV126 ) )
        = $false )
      | ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1001]) ).

thf(1046,plain,
    ! [SV161: $i,SV127: $i,SV230: $i] :
      ( ( ( ! [SY434: $i] :
              ( ~ ( in @ SV230 @ SY434 )
              | ~ ( in @ SY434 @ SV127 ) )
          | ( in @ SV230 @ SV161 ) )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1002]) ).

thf(1047,plain,
    ! [SV127: $i,SV161: $i,SV231: $i] :
      ( ( ( ~ ( in @ SV231 @ SV161 )
          | ~ ( ~ ( in @ SV231 @ ( sK7_D @ SV231 @ SV161 @ SV127 ) )
              | ~ ( in @ ( sK7_D @ SV231 @ SV161 @ SV127 ) @ SV127 ) ) )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1003]) ).

thf(1048,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
              | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
               != SV54 ) )
          | ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
              | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
               != SV162 ) ) )
        = $false )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1004]) ).

thf(1049,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
        = $true )
      | ( ( ( ( sK18_D @ SV184 @ SV162 @ SV54 )
            = SV54 )
          | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
            = SV162 ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1005]) ).

thf(1050,plain,
    ! [SV163: $i,SV54: $i,SV185: $i] :
      ( ( ( ! [SY405: $i] :
              ( ~ ( in @ SY405 @ SV185 )
              | ( SY405 = SV54 )
              | ( SY405 = SV163 ) ) )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1006]) ).

thf(1051,plain,
    ! [SV163: $i,SV185: $i,SV54: $i] :
      ( ( ( ~ ( ~ ! [SY406: $i] :
                    ( ( SY406 != SV54 )
                    | ( in @ SY406 @ SV185 ) )
              | ~ ! [SY407: $i] :
                    ( ( SY407 != SV163 )
                    | ( in @ SY407 @ SV185 ) ) ) )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1007]) ).

thf(1052,plain,
    ! [SV186: $i,SV167: $i,SV55: $i] :
      ( ( ( ! [SY408: $i,SY409: $i] :
              ( ~ ( in @ SY408 @ SV55 )
              | ~ ( in @ SY409 @ SV167 )
              | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
               != ( ordered_pair @ SY408 @ SY409 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1010]) ).

thf(1053,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
                    | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) )
              | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
               != ( ordered_pair @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1011]) ).

thf(1054,plain,
    ! [SV187: $i,SV168: $i,SV55: $i] :
      ( ( ( ! [SY410: $i] :
              ( ! [SY387: $i,SY388: $i] :
                  ( ~ ( in @ SY387 @ SV55 )
                  | ~ ( in @ SY388 @ SV168 )
                  | ( SY410
                   != ( ordered_pair @ SY387 @ SY388 ) ) )
              | ( in @ SY410 @ SV187 ) ) )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1012]) ).

thf(1055,plain,
    ! [SV55: $i,SV168: $i,SV187: $i] :
      ( ( ( ! [SY413: $i] :
              ( ~ ( in @ SY413 @ SV187 )
              | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                        | ~ ( in @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
                  | ( SY413
                   != ( ordered_pair @ ( sK12_E @ SY413 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SY413 @ SV187 @ SV168 @ SV55 ) ) ) ) ) )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1013]) ).

thf(1056,plain,
    ! [SV200: $i,SV170: $i,SV132: $i] :
      ( ( ( disjoint @ SV132 @ SV170 )
        = $false )
      | ( ( in @ SV200 @ SV132 )
        = $false )
      | ( ( in @ SV200 @ SV170 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1014]) ).

thf(1057,plain,
    ! [SV212: $i,SV201: $i] :
      ( ( ( SV201 = SV212 )
        = $false )
      | ( ( proper_subset @ SV201 @ SV212 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1015]) ).

thf(1058,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
          | ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1021]) ).

thf(1059,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
              | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
          | ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
              | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) ) )
        = $false )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1022]) ).

thf(1060,plain,
    ! [SV191: $i,SV175: $i,SV58: $i] :
      ( ( ( ! [SY416: $i] :
              ( ~ ( in @ SY416 @ SV58 )
              | ~ ( in @ SY416 @ SV175 )
              | ( in @ SY416 @ SV191 ) ) )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1023]) ).

thf(1061,plain,
    ! [SV175: $i,SV58: $i,SV191: $i] :
      ( ( ( ~ ( ~ ! [SY417: $i] :
                    ( ~ ( in @ SY417 @ SV191 )
                    | ( in @ SY417 @ SV58 ) )
              | ~ ! [SY418: $i] :
                    ( ~ ( in @ SY418 @ SV191 )
                    | ( in @ SY418 @ SV175 ) ) ) )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1024]) ).

thf(1062,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
              | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) )
          | ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
              | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1025]) ).

thf(1063,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
        = $true )
      | ( ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 )
          | ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1026]) ).

thf(1064,plain,
    ! [SV179: $i,SV59: $i,SV193: $i] :
      ( ( ( ! [SY419: $i] :
              ( ~ ( in @ SY419 @ SV193 )
              | ( in @ SY419 @ SV59 )
              | ( in @ SY419 @ SV179 ) ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1027]) ).

thf(1065,plain,
    ! [SV179: $i,SV193: $i,SV59: $i] :
      ( ( ( ~ ( ~ ! [SY420: $i] :
                    ( ~ ( in @ SY420 @ SV59 )
                    | ( in @ SY420 @ SV193 ) )
              | ~ ! [SY421: $i] :
                    ( ~ ( in @ SY421 @ SV179 )
                    | ( in @ SY421 @ SV193 ) ) ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1028]) ).

thf(1066,plain,
    ! [SV112: $i,SV145: $i] :
      ( ( ( subset @ ( sK19_C @ SV145 @ SV112 ) @ SV112 )
        = $false )
      | ( ( in @ ( sK19_C @ SV145 @ SV112 ) @ SV145 )
        = $false )
      | ( ( SV145
          = ( powerset @ SV112 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1029]) ).

thf(1067,plain,
    ! [SV113: $i,SV146: $i,SV224: $i] :
      ( ( ( ~ ( in @ SV224 @ SV146 ) )
        = $true )
      | ( ( subset @ SV224 @ SV113 )
        = $true )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1030]) ).

thf(1068,plain,
    ! [SV146: $i,SV113: $i,SV225: $i] :
      ( ( ( ~ ( subset @ SV225 @ SV113 ) )
        = $true )
      | ( ( in @ SV225 @ SV146 )
        = $true )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1031]) ).

thf(1069,plain,
    ! [SV124: $i,SV155: $i] :
      ( ( ( in @ ( sK21_C @ SV155 @ SV124 ) @ SV155 )
        = $false )
      | ( ( ( sK21_C @ SV155 @ SV124 )
          = SV124 )
        = $false )
      | ( ( SV155
          = ( singleton @ SV124 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1032]) ).

thf(1070,plain,
    ! [SV156: $i,SV125: $i,SV226: $i] :
      ( ( ( ( SV226 != SV125 ) )
        = $true )
      | ( ( in @ SV226 @ SV156 )
        = $true )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1033]) ).

thf(1071,plain,
    ! [SV125: $i,SV156: $i,SV227: $i] :
      ( ( ( ~ ( in @ SV227 @ SV156 ) )
        = $true )
      | ( ( SV227 = SV125 )
        = $true )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1034]) ).

thf(1072,plain,
    ! [SV228: $i,SV219: $i,SV95: $i,SV52: $i] :
      ( ( ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV219 @ SV228 ) )
        = $false )
      | ( ( in @ SV52 @ SV219 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1038]) ).

thf(1073,plain,
    ! [SV221: $i,SV220: $i,SV95: $i,SV52: $i] :
      ( ( ( in @ ( ordered_pair @ SV52 @ SV95 ) @ ( cartesian_product2 @ SV220 @ SV221 ) )
        = $false )
      | ( ( in @ SV95 @ SV221 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1039]) ).

thf(1074,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1040]) ).

thf(1075,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
              | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) ) )
        = $false )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1041]) ).

thf(1076,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
              | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) ) )
        = $false )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1041]) ).

thf(1077,plain,
    ! [SV183: $i,SV159: $i,SV53: $i,SV232: $i] :
      ( ( ( ~ ( in @ SV232 @ SV53 )
          | ( in @ SV232 @ SV159 )
          | ( in @ SV232 @ SV183 ) )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1042]) ).

thf(1078,plain,
    ! [SV159: $i,SV53: $i,SV183: $i] :
      ( ( ( ~ ! [SY403: $i] :
                ( ~ ( in @ SY403 @ SV183 )
                | ( in @ SY403 @ SV53 ) )
          | ~ ! [SY404: $i] :
                ( ~ ( in @ SY404 @ SV183 )
                | ~ ( in @ SY404 @ SV159 ) ) )
        = $false )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1043]) ).

thf(1079,plain,
    ! [SV229: $i,SV126: $i,SV160: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV229 ) )
        = $true )
      | ( ( ~ ( in @ SV229 @ SV126 ) )
        = $true )
      | ( ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1044]) ).

thf(1080,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ ( sK9_SY187 @ SV160 @ SV126 ) ) )
        = $false )
      | ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1045]) ).

thf(1081,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( ~ ( in @ ( sK9_SY187 @ SV160 @ SV126 ) @ SV126 ) )
        = $false )
      | ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1045]) ).

thf(1082,plain,
    ! [SV161: $i,SV127: $i,SV230: $i] :
      ( ( ( ! [SY434: $i] :
              ( ~ ( in @ SV230 @ SY434 )
              | ~ ( in @ SY434 @ SV127 ) ) )
        = $true )
      | ( ( in @ SV230 @ SV161 )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1046]) ).

thf(1083,plain,
    ! [SV127: $i,SV161: $i,SV231: $i] :
      ( ( ( ~ ( in @ SV231 @ SV161 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV231 @ ( sK7_D @ SV231 @ SV161 @ SV127 ) )
              | ~ ( in @ ( sK7_D @ SV231 @ SV161 @ SV127 ) @ SV127 ) ) )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1047]) ).

thf(1084,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
              | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
               != SV54 ) ) )
        = $false )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1048]) ).

thf(1085,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
              | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
               != SV162 ) ) )
        = $false )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1048]) ).

thf(1086,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ( sK18_D @ SV184 @ SV162 @ SV54 )
          = SV54 )
        = $true )
      | ( ( ( sK18_D @ SV184 @ SV162 @ SV54 )
          = SV162 )
        = $true )
      | ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1049]) ).

thf(1087,plain,
    ! [SV163: $i,SV54: $i,SV185: $i,SV233: $i] :
      ( ( ( ~ ( in @ SV233 @ SV185 )
          | ( SV233 = SV54 )
          | ( SV233 = SV163 ) )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1050]) ).

thf(1088,plain,
    ! [SV163: $i,SV185: $i,SV54: $i] :
      ( ( ( ~ ! [SY406: $i] :
                ( ( SY406 != SV54 )
                | ( in @ SY406 @ SV185 ) )
          | ~ ! [SY407: $i] :
                ( ( SY407 != SV163 )
                | ( in @ SY407 @ SV185 ) ) )
        = $false )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1051]) ).

thf(1089,plain,
    ! [SV186: $i,SV167: $i,SV55: $i,SV234: $i] :
      ( ( ( ! [SY435: $i] :
              ( ~ ( in @ SV234 @ SV55 )
              | ~ ( in @ SY435 @ SV167 )
              | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
               != ( ordered_pair @ SV234 @ SY435 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1052]) ).

thf(1090,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
                | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) )
          | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
           != ( ordered_pair @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) ) ) )
        = $false )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1053]) ).

thf(1091,plain,
    ! [SV187: $i,SV235: $i,SV168: $i,SV55: $i] :
      ( ( ( ! [SY436: $i,SY437: $i] :
              ( ~ ( in @ SY436 @ SV55 )
              | ~ ( in @ SY437 @ SV168 )
              | ( SV235
               != ( ordered_pair @ SY436 @ SY437 ) ) )
          | ( in @ SV235 @ SV187 ) )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1054]) ).

thf(1092,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( ~ ( in @ SV236 @ SV187 )
          | ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                    | ~ ( in @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
              | ( SV236
               != ( ordered_pair @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) ) ) ) )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1055]) ).

thf(1093,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1058]) ).

thf(1094,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
              | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) ) )
        = $false )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1059]) ).

thf(1095,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ~ ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
              | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) ) )
        = $false )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1059]) ).

thf(1096,plain,
    ! [SV191: $i,SV175: $i,SV58: $i,SV237: $i] :
      ( ( ( ~ ( in @ SV237 @ SV58 )
          | ~ ( in @ SV237 @ SV175 )
          | ( in @ SV237 @ SV191 ) )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1060]) ).

thf(1097,plain,
    ! [SV175: $i,SV58: $i,SV191: $i] :
      ( ( ( ~ ! [SY417: $i] :
                ( ~ ( in @ SY417 @ SV191 )
                | ( in @ SY417 @ SV58 ) )
          | ~ ! [SY418: $i] :
                ( ~ ( in @ SY418 @ SV191 )
                | ( in @ SY418 @ SV175 ) ) )
        = $false )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1061]) ).

thf(1098,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
              | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1062]) ).

thf(1099,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
              | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1062]) ).

thf(1100,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 )
        = $true )
      | ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 )
        = $true )
      | ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1063]) ).

thf(1101,plain,
    ! [SV179: $i,SV59: $i,SV193: $i,SV238: $i] :
      ( ( ( ~ ( in @ SV238 @ SV193 )
          | ( in @ SV238 @ SV59 )
          | ( in @ SV238 @ SV179 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1064]) ).

thf(1102,plain,
    ! [SV179: $i,SV193: $i,SV59: $i] :
      ( ( ( ~ ! [SY420: $i] :
                ( ~ ( in @ SY420 @ SV59 )
                | ( in @ SY420 @ SV193 ) )
          | ~ ! [SY421: $i] :
                ( ~ ( in @ SY421 @ SV179 )
                | ( in @ SY421 @ SV193 ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1065]) ).

thf(1103,plain,
    ! [SV113: $i,SV146: $i,SV224: $i] :
      ( ( ( in @ SV224 @ SV146 )
        = $false )
      | ( ( subset @ SV224 @ SV113 )
        = $true )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1067]) ).

thf(1104,plain,
    ! [SV146: $i,SV113: $i,SV225: $i] :
      ( ( ( subset @ SV225 @ SV113 )
        = $false )
      | ( ( in @ SV225 @ SV146 )
        = $true )
      | ( ( SV146
          = ( powerset @ SV113 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1068]) ).

thf(1105,plain,
    ! [SV156: $i,SV125: $i,SV226: $i] :
      ( ( ( SV226 = SV125 )
        = $false )
      | ( ( in @ SV226 @ SV156 )
        = $true )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1070]) ).

thf(1106,plain,
    ! [SV125: $i,SV156: $i,SV227: $i] :
      ( ( ( in @ SV227 @ SV156 )
        = $false )
      | ( ( SV227 = SV125 )
        = $true )
      | ( ( SV156
          = ( singleton @ SV125 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1071]) ).

thf(1107,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
        = $false )
      | ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1074]) ).

thf(1108,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
          | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1075]) ).

thf(1109,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
          | ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 ) )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1076]) ).

thf(1110,plain,
    ! [SV183: $i,SV159: $i,SV53: $i,SV232: $i] :
      ( ( ( ~ ( in @ SV232 @ SV53 )
          | ( in @ SV232 @ SV159 ) )
        = $true )
      | ( ( in @ SV232 @ SV183 )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1077]) ).

thf(1111,plain,
    ! [SV159: $i,SV53: $i,SV183: $i] :
      ( ( ( ~ ! [SY403: $i] :
                ( ~ ( in @ SY403 @ SV183 )
                | ( in @ SY403 @ SV53 ) ) )
        = $false )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1078]) ).

thf(1112,plain,
    ! [SV53: $i,SV159: $i,SV183: $i] :
      ( ( ( ~ ! [SY404: $i] :
                ( ~ ( in @ SY404 @ SV183 )
                | ~ ( in @ SY404 @ SV159 ) ) )
        = $false )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1078]) ).

thf(1113,plain,
    ! [SV229: $i,SV126: $i,SV160: $i] :
      ( ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV229 )
        = $false )
      | ( ( ~ ( in @ SV229 @ SV126 ) )
        = $true )
      | ( ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1079]) ).

thf(1114,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ ( sK9_SY187 @ SV160 @ SV126 ) )
        = $true )
      | ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1080]) ).

thf(1115,plain,
    ! [SV126: $i,SV160: $i] :
      ( ( ( in @ ( sK9_SY187 @ SV160 @ SV126 ) @ SV126 )
        = $true )
      | ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1081]) ).

thf(1116,plain,
    ! [SV161: $i,SV127: $i,SV239: $i,SV230: $i] :
      ( ( ( ~ ( in @ SV230 @ SV239 )
          | ~ ( in @ SV239 @ SV127 ) )
        = $true )
      | ( ( in @ SV230 @ SV161 )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1082]) ).

thf(1117,plain,
    ! [SV127: $i,SV161: $i,SV231: $i] :
      ( ( ( in @ SV231 @ SV161 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV231 @ ( sK7_D @ SV231 @ SV161 @ SV127 ) )
              | ~ ( in @ ( sK7_D @ SV231 @ SV161 @ SV127 ) @ SV127 ) ) )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1083]) ).

thf(1118,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
          | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
           != SV54 ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1084]) ).

thf(1119,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
          | ( ( sK18_D @ SV184 @ SV162 @ SV54 )
           != SV162 ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1085]) ).

thf(1120,plain,
    ! [SV163: $i,SV54: $i,SV185: $i,SV233: $i] :
      ( ( ( ~ ( in @ SV233 @ SV185 ) )
        = $true )
      | ( ( ( SV233 = SV54 )
          | ( SV233 = SV163 ) )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1087]) ).

thf(1121,plain,
    ! [SV163: $i,SV185: $i,SV54: $i] :
      ( ( ( ~ ! [SY406: $i] :
                ( ( SY406 != SV54 )
                | ( in @ SY406 @ SV185 ) ) )
        = $false )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1088]) ).

thf(1122,plain,
    ! [SV54: $i,SV185: $i,SV163: $i] :
      ( ( ( ~ ! [SY407: $i] :
                ( ( SY407 != SV163 )
                | ( in @ SY407 @ SV185 ) ) )
        = $false )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1088]) ).

thf(1123,plain,
    ! [SV186: $i,SV167: $i,SV240: $i,SV55: $i,SV234: $i] :
      ( ( ( ~ ( in @ SV234 @ SV55 )
          | ~ ( in @ SV240 @ SV167 )
          | ( ( sK14_D @ SV186 @ SV167 @ SV55 )
           != ( ordered_pair @ SV234 @ SV240 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1089]) ).

thf(1124,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
                | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) ) )
        = $false )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1090]) ).

thf(1125,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ( ( sK14_D @ SV186 @ SV167 @ SV55 )
           != ( ordered_pair @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) ) ) )
        = $false )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1090]) ).

thf(1126,plain,
    ! [SV187: $i,SV235: $i,SV168: $i,SV55: $i] :
      ( ( ( ! [SY436: $i,SY437: $i] :
              ( ~ ( in @ SY436 @ SV55 )
              | ~ ( in @ SY437 @ SV168 )
              | ( SV235
               != ( ordered_pair @ SY436 @ SY437 ) ) ) )
        = $true )
      | ( ( in @ SV235 @ SV187 )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1091]) ).

thf(1127,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( ~ ( in @ SV236 @ SV187 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                    | ~ ( in @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
              | ( SV236
               != ( ordered_pair @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) ) ) ) )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1092]) ).

thf(1128,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
        = $false )
      | ( ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1093]) ).

thf(1129,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
          | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1094]) ).

thf(1130,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
          | ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1095]) ).

thf(1131,plain,
    ! [SV191: $i,SV175: $i,SV58: $i,SV237: $i] :
      ( ( ( ~ ( in @ SV237 @ SV58 )
          | ~ ( in @ SV237 @ SV175 ) )
        = $true )
      | ( ( in @ SV237 @ SV191 )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1096]) ).

thf(1132,plain,
    ! [SV175: $i,SV58: $i,SV191: $i] :
      ( ( ( ~ ! [SY417: $i] :
                ( ~ ( in @ SY417 @ SV191 )
                | ( in @ SY417 @ SV58 ) ) )
        = $false )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1097]) ).

thf(1133,plain,
    ! [SV58: $i,SV175: $i,SV191: $i] :
      ( ( ( ~ ! [SY418: $i] :
                ( ~ ( in @ SY418 @ SV191 )
                | ( in @ SY418 @ SV175 ) ) )
        = $false )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1097]) ).

thf(1134,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
          | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1098]) ).

thf(1135,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
          | ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1099]) ).

thf(1136,plain,
    ! [SV179: $i,SV59: $i,SV193: $i,SV238: $i] :
      ( ( ( ~ ( in @ SV238 @ SV193 ) )
        = $true )
      | ( ( ( in @ SV238 @ SV59 )
          | ( in @ SV238 @ SV179 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1101]) ).

thf(1137,plain,
    ! [SV179: $i,SV193: $i,SV59: $i] :
      ( ( ( ~ ! [SY420: $i] :
                ( ~ ( in @ SY420 @ SV59 )
                | ( in @ SY420 @ SV193 ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1102]) ).

thf(1138,plain,
    ! [SV59: $i,SV193: $i,SV179: $i] :
      ( ( ( ~ ! [SY421: $i] :
                ( ~ ( in @ SY421 @ SV179 )
                | ( in @ SY421 @ SV193 ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1102]) ).

thf(1139,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 )
        = $false )
      | ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
        = $true )
      | ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
        = $false )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1107]) ).

thf(1140,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV53 )
        = $true )
      | ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1108]) ).

thf(1141,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1109]) ).

thf(1142,plain,
    ! [SV183: $i,SV159: $i,SV53: $i,SV232: $i] :
      ( ( ( ~ ( in @ SV232 @ SV53 ) )
        = $true )
      | ( ( in @ SV232 @ SV159 )
        = $true )
      | ( ( in @ SV232 @ SV183 )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1110]) ).

thf(1143,plain,
    ! [SV159: $i,SV53: $i,SV183: $i] :
      ( ( ( ! [SY403: $i] :
              ( ~ ( in @ SY403 @ SV183 )
              | ( in @ SY403 @ SV53 ) ) )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1111]) ).

thf(1144,plain,
    ! [SV53: $i,SV159: $i,SV183: $i] :
      ( ( ( ! [SY404: $i] :
              ( ~ ( in @ SY404 @ SV183 )
              | ~ ( in @ SY404 @ SV159 ) ) )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1112]) ).

thf(1145,plain,
    ! [SV160: $i,SV126: $i,SV229: $i] :
      ( ( ( in @ SV229 @ SV126 )
        = $false )
      | ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV229 )
        = $false )
      | ( ( ~ ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 ) )
        = $true )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1113]) ).

thf(1146,plain,
    ! [SV161: $i,SV127: $i,SV239: $i,SV230: $i] :
      ( ( ( ~ ( in @ SV230 @ SV239 ) )
        = $true )
      | ( ( ~ ( in @ SV239 @ SV127 ) )
        = $true )
      | ( ( in @ SV230 @ SV161 )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1116]) ).

thf(1147,plain,
    ! [SV127: $i,SV161: $i,SV231: $i] :
      ( ( ( ~ ( in @ SV231 @ ( sK7_D @ SV231 @ SV161 @ SV127 ) )
          | ~ ( in @ ( sK7_D @ SV231 @ SV161 @ SV127 ) @ SV127 ) )
        = $false )
      | ( ( in @ SV231 @ SV161 )
        = $false )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1117]) ).

thf(1148,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 ) )
        = $true )
      | ( ( ( ( sK18_D @ SV184 @ SV162 @ SV54 )
           != SV54 ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1118]) ).

thf(1149,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ~ ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 ) )
        = $true )
      | ( ( ( ( sK18_D @ SV184 @ SV162 @ SV54 )
           != SV162 ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1119]) ).

thf(1150,plain,
    ! [SV163: $i,SV54: $i,SV185: $i,SV233: $i] :
      ( ( ( in @ SV233 @ SV185 )
        = $false )
      | ( ( ( SV233 = SV54 )
          | ( SV233 = SV163 ) )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1120]) ).

thf(1151,plain,
    ! [SV163: $i,SV185: $i,SV54: $i] :
      ( ( ( ! [SY406: $i] :
              ( ( SY406 != SV54 )
              | ( in @ SY406 @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1121]) ).

thf(1152,plain,
    ! [SV54: $i,SV185: $i,SV163: $i] :
      ( ( ( ! [SY407: $i] :
              ( ( SY407 != SV163 )
              | ( in @ SY407 @ SV185 ) ) )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1122]) ).

thf(1153,plain,
    ! [SV186: $i,SV167: $i,SV240: $i,SV55: $i,SV234: $i] :
      ( ( ( ~ ( in @ SV234 @ SV55 )
          | ~ ( in @ SV240 @ SV167 ) )
        = $true )
      | ( ( ( ( sK14_D @ SV186 @ SV167 @ SV55 )
           != ( ordered_pair @ SV234 @ SV240 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1123]) ).

thf(1154,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
              | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) ) )
        = $true )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1124]) ).

thf(1155,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ( sK14_D @ SV186 @ SV167 @ SV55 )
          = ( ordered_pair @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) ) )
        = $true )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1125]) ).

thf(1156,plain,
    ! [SV187: $i,SV235: $i,SV168: $i,SV55: $i,SV241: $i] :
      ( ( ( ! [SY438: $i] :
              ( ~ ( in @ SV241 @ SV55 )
              | ~ ( in @ SY438 @ SV168 )
              | ( SV235
               != ( ordered_pair @ SV241 @ SY438 ) ) ) )
        = $true )
      | ( ( in @ SV235 @ SV187 )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1126]) ).

thf(1157,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                    | ~ ( in @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
              | ( SV236
               != ( ordered_pair @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) ) ) ) )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1127]) ).

thf(1158,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
        = $false )
      | ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
        = $false )
      | ( ( ~ ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1128]) ).

thf(1159,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
        = $true )
      | ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1129]) ).

thf(1160,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
        = $true )
      | ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 )
        = $true )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1130]) ).

thf(1161,plain,
    ! [SV191: $i,SV175: $i,SV58: $i,SV237: $i] :
      ( ( ( ~ ( in @ SV237 @ SV58 ) )
        = $true )
      | ( ( ~ ( in @ SV237 @ SV175 ) )
        = $true )
      | ( ( in @ SV237 @ SV191 )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1131]) ).

thf(1162,plain,
    ! [SV175: $i,SV58: $i,SV191: $i] :
      ( ( ( ! [SY417: $i] :
              ( ~ ( in @ SY417 @ SV191 )
              | ( in @ SY417 @ SV58 ) ) )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1132]) ).

thf(1163,plain,
    ! [SV58: $i,SV175: $i,SV191: $i] :
      ( ( ( ! [SY418: $i] :
              ( ~ ( in @ SY418 @ SV191 )
              | ( in @ SY418 @ SV175 ) ) )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1133]) ).

thf(1164,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1134]) ).

thf(1165,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 ) )
        = $true )
      | ( ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1135]) ).

thf(1166,plain,
    ! [SV179: $i,SV59: $i,SV193: $i,SV238: $i] :
      ( ( ( in @ SV238 @ SV193 )
        = $false )
      | ( ( ( in @ SV238 @ SV59 )
          | ( in @ SV238 @ SV179 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1136]) ).

thf(1167,plain,
    ! [SV179: $i,SV193: $i,SV59: $i] :
      ( ( ( ! [SY420: $i] :
              ( ~ ( in @ SY420 @ SV59 )
              | ( in @ SY420 @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1137]) ).

thf(1168,plain,
    ! [SV59: $i,SV193: $i,SV179: $i] :
      ( ( ( ! [SY421: $i] :
              ( ~ ( in @ SY421 @ SV179 )
              | ( in @ SY421 @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1138]) ).

thf(1169,plain,
    ! [SV53: $i,SV158: $i,SV182: $i] :
      ( ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV158 )
        = $false )
      | ( ( in @ ( sK6_D @ SV182 @ SV158 @ SV53 ) @ SV182 )
        = $true )
      | ( ( SV182
          = ( set_difference @ SV53 @ SV158 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1141]) ).

thf(1170,plain,
    ! [SV183: $i,SV159: $i,SV53: $i,SV232: $i] :
      ( ( ( in @ SV232 @ SV53 )
        = $false )
      | ( ( in @ SV232 @ SV159 )
        = $true )
      | ( ( in @ SV232 @ SV183 )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1142]) ).

thf(1171,plain,
    ! [SV159: $i,SV53: $i,SV183: $i,SV242: $i] :
      ( ( ( ~ ( in @ SV242 @ SV183 )
          | ( in @ SV242 @ SV53 ) )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1143]) ).

thf(1172,plain,
    ! [SV53: $i,SV159: $i,SV183: $i,SV243: $i] :
      ( ( ( ~ ( in @ SV243 @ SV183 )
          | ~ ( in @ SV243 @ SV159 ) )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1144]) ).

thf(1173,plain,
    ! [SV229: $i,SV126: $i,SV160: $i] :
      ( ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV160 )
        = $false )
      | ( ( in @ ( sK8_C @ SV160 @ SV126 ) @ SV229 )
        = $false )
      | ( ( in @ SV229 @ SV126 )
        = $false )
      | ( ( SV160
          = ( union @ SV126 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1145]) ).

thf(1174,plain,
    ! [SV161: $i,SV127: $i,SV239: $i,SV230: $i] :
      ( ( ( in @ SV230 @ SV239 )
        = $false )
      | ( ( ~ ( in @ SV239 @ SV127 ) )
        = $true )
      | ( ( in @ SV230 @ SV161 )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1146]) ).

thf(1175,plain,
    ! [SV127: $i,SV161: $i,SV231: $i] :
      ( ( ( ~ ( in @ SV231 @ ( sK7_D @ SV231 @ SV161 @ SV127 ) ) )
        = $false )
      | ( ( in @ SV231 @ SV161 )
        = $false )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1147]) ).

thf(1176,plain,
    ! [SV127: $i,SV161: $i,SV231: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV231 @ SV161 @ SV127 ) @ SV127 ) )
        = $false )
      | ( ( in @ SV231 @ SV161 )
        = $false )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1147]) ).

thf(1177,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
        = $false )
      | ( ( ( ( sK18_D @ SV184 @ SV162 @ SV54 )
           != SV54 ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1148]) ).

thf(1178,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
        = $false )
      | ( ( ( ( sK18_D @ SV184 @ SV162 @ SV54 )
           != SV162 ) )
        = $true )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1149]) ).

thf(1179,plain,
    ! [SV185: $i,SV163: $i,SV54: $i,SV233: $i] :
      ( ( ( SV233 = SV54 )
        = $true )
      | ( ( SV233 = SV163 )
        = $true )
      | ( ( in @ SV233 @ SV185 )
        = $false )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1150]) ).

thf(1180,plain,
    ! [SV163: $i,SV185: $i,SV54: $i,SV244: $i] :
      ( ( ( ( SV244 != SV54 )
          | ( in @ SV244 @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1151]) ).

thf(1181,plain,
    ! [SV54: $i,SV185: $i,SV163: $i,SV245: $i] :
      ( ( ( ( SV245 != SV163 )
          | ( in @ SV245 @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1152]) ).

thf(1182,plain,
    ! [SV186: $i,SV167: $i,SV240: $i,SV55: $i,SV234: $i] :
      ( ( ( ~ ( in @ SV234 @ SV55 ) )
        = $true )
      | ( ( ~ ( in @ SV240 @ SV167 ) )
        = $true )
      | ( ( ( ( sK14_D @ SV186 @ SV167 @ SV55 )
           != ( ordered_pair @ SV234 @ SV240 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1153]) ).

thf(1183,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
          | ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) )
        = $false )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1154]) ).

thf(1184,plain,
    ! [SV187: $i,SV235: $i,SV168: $i,SV246: $i,SV55: $i,SV241: $i] :
      ( ( ( ~ ( in @ SV241 @ SV55 )
          | ~ ( in @ SV246 @ SV168 )
          | ( SV235
           != ( ordered_pair @ SV241 @ SV246 ) ) )
        = $true )
      | ( ( in @ SV235 @ SV187 )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1156]) ).

thf(1185,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                | ~ ( in @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
          | ( SV236
           != ( ordered_pair @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) ) ) )
        = $false )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1157]) ).

thf(1186,plain,
    ! [SV58: $i,SV174: $i,SV190: $i] :
      ( ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV190 )
        = $false )
      | ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV58 )
        = $false )
      | ( ( in @ ( sK10_D @ SV190 @ SV174 @ SV58 ) @ SV174 )
        = $false )
      | ( ( SV190
          = ( set_intersection2 @ SV58 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1158]) ).

thf(1187,plain,
    ! [SV191: $i,SV175: $i,SV58: $i,SV237: $i] :
      ( ( ( in @ SV237 @ SV58 )
        = $false )
      | ( ( ~ ( in @ SV237 @ SV175 ) )
        = $true )
      | ( ( in @ SV237 @ SV191 )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1161]) ).

thf(1188,plain,
    ! [SV175: $i,SV58: $i,SV191: $i,SV247: $i] :
      ( ( ( ~ ( in @ SV247 @ SV191 )
          | ( in @ SV247 @ SV58 ) )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1162]) ).

thf(1189,plain,
    ! [SV58: $i,SV175: $i,SV191: $i,SV248: $i] :
      ( ( ( ~ ( in @ SV248 @ SV191 )
          | ( in @ SV248 @ SV175 ) )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1163]) ).

thf(1190,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
        = $false )
      | ( ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1164]) ).

thf(1191,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
        = $false )
      | ( ( ~ ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1165]) ).

thf(1192,plain,
    ! [SV193: $i,SV179: $i,SV59: $i,SV238: $i] :
      ( ( ( in @ SV238 @ SV59 )
        = $true )
      | ( ( in @ SV238 @ SV179 )
        = $true )
      | ( ( in @ SV238 @ SV193 )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1166]) ).

thf(1193,plain,
    ! [SV179: $i,SV193: $i,SV59: $i,SV249: $i] :
      ( ( ( ~ ( in @ SV249 @ SV59 )
          | ( in @ SV249 @ SV193 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1167]) ).

thf(1194,plain,
    ! [SV59: $i,SV193: $i,SV179: $i,SV250: $i] :
      ( ( ( ~ ( in @ SV250 @ SV179 )
          | ( in @ SV250 @ SV193 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1168]) ).

thf(1195,plain,
    ! [SV159: $i,SV53: $i,SV183: $i,SV242: $i] :
      ( ( ( ~ ( in @ SV242 @ SV183 ) )
        = $true )
      | ( ( in @ SV242 @ SV53 )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1171]) ).

thf(1196,plain,
    ! [SV53: $i,SV159: $i,SV183: $i,SV243: $i] :
      ( ( ( ~ ( in @ SV243 @ SV183 ) )
        = $true )
      | ( ( ~ ( in @ SV243 @ SV159 ) )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1172]) ).

thf(1197,plain,
    ! [SV161: $i,SV230: $i,SV127: $i,SV239: $i] :
      ( ( ( in @ SV239 @ SV127 )
        = $false )
      | ( ( in @ SV230 @ SV239 )
        = $false )
      | ( ( in @ SV230 @ SV161 )
        = $true )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1174]) ).

thf(1198,plain,
    ! [SV127: $i,SV161: $i,SV231: $i] :
      ( ( ( in @ SV231 @ ( sK7_D @ SV231 @ SV161 @ SV127 ) )
        = $true )
      | ( ( in @ SV231 @ SV161 )
        = $false )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1175]) ).

thf(1199,plain,
    ! [SV127: $i,SV161: $i,SV231: $i] :
      ( ( ( in @ ( sK7_D @ SV231 @ SV161 @ SV127 ) @ SV127 )
        = $true )
      | ( ( in @ SV231 @ SV161 )
        = $false )
      | ( ( SV161
          = ( union @ SV127 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1176]) ).

thf(1200,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ( sK18_D @ SV184 @ SV162 @ SV54 )
          = SV54 )
        = $false )
      | ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
        = $false )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1177]) ).

thf(1201,plain,
    ! [SV54: $i,SV162: $i,SV184: $i] :
      ( ( ( ( sK18_D @ SV184 @ SV162 @ SV54 )
          = SV162 )
        = $false )
      | ( ( in @ ( sK18_D @ SV184 @ SV162 @ SV54 ) @ SV184 )
        = $false )
      | ( ( SV184
          = ( unordered_pair @ SV54 @ SV162 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1178]) ).

thf(1202,plain,
    ! [SV163: $i,SV185: $i,SV54: $i,SV244: $i] :
      ( ( ( ( SV244 != SV54 ) )
        = $true )
      | ( ( in @ SV244 @ SV185 )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1180]) ).

thf(1203,plain,
    ! [SV54: $i,SV185: $i,SV163: $i,SV245: $i] :
      ( ( ( ( SV245 != SV163 ) )
        = $true )
      | ( ( in @ SV245 @ SV185 )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1181]) ).

thf(1204,plain,
    ! [SV186: $i,SV167: $i,SV240: $i,SV55: $i,SV234: $i] :
      ( ( ( in @ SV234 @ SV55 )
        = $false )
      | ( ( ~ ( in @ SV240 @ SV167 ) )
        = $true )
      | ( ( ( ( sK14_D @ SV186 @ SV167 @ SV55 )
           != ( ordered_pair @ SV234 @ SV240 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1182]) ).

thf(1205,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ~ ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 ) )
        = $false )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1183]) ).

thf(1206,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ~ ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 ) )
        = $false )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1183]) ).

thf(1207,plain,
    ! [SV187: $i,SV235: $i,SV168: $i,SV246: $i,SV55: $i,SV241: $i] :
      ( ( ( ~ ( in @ SV241 @ SV55 )
          | ~ ( in @ SV246 @ SV168 ) )
        = $true )
      | ( ( ( SV235
           != ( ordered_pair @ SV241 @ SV246 ) ) )
        = $true )
      | ( ( in @ SV235 @ SV187 )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1184]) ).

thf(1208,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV55 )
                | ~ ( in @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV168 ) ) )
        = $false )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1185]) ).

thf(1209,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( ( SV236
           != ( ordered_pair @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) ) ) )
        = $false )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1185]) ).

thf(1210,plain,
    ! [SV191: $i,SV58: $i,SV175: $i,SV237: $i] :
      ( ( ( in @ SV237 @ SV175 )
        = $false )
      | ( ( in @ SV237 @ SV58 )
        = $false )
      | ( ( in @ SV237 @ SV191 )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1187]) ).

thf(1211,plain,
    ! [SV175: $i,SV58: $i,SV191: $i,SV247: $i] :
      ( ( ( ~ ( in @ SV247 @ SV191 ) )
        = $true )
      | ( ( in @ SV247 @ SV58 )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1188]) ).

thf(1212,plain,
    ! [SV58: $i,SV175: $i,SV191: $i,SV248: $i] :
      ( ( ( ~ ( in @ SV248 @ SV191 ) )
        = $true )
      | ( ( in @ SV248 @ SV175 )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1189]) ).

thf(1213,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV59 )
        = $false )
      | ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1190]) ).

thf(1214,plain,
    ! [SV59: $i,SV178: $i,SV192: $i] :
      ( ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV178 )
        = $false )
      | ( ( in @ ( sK17_D @ SV192 @ SV178 @ SV59 ) @ SV192 )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV59 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1191]) ).

thf(1215,plain,
    ! [SV179: $i,SV193: $i,SV59: $i,SV249: $i] :
      ( ( ( ~ ( in @ SV249 @ SV59 ) )
        = $true )
      | ( ( in @ SV249 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1193]) ).

thf(1216,plain,
    ! [SV59: $i,SV193: $i,SV179: $i,SV250: $i] :
      ( ( ( ~ ( in @ SV250 @ SV179 ) )
        = $true )
      | ( ( in @ SV250 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1194]) ).

thf(1217,plain,
    ! [SV159: $i,SV53: $i,SV183: $i,SV242: $i] :
      ( ( ( in @ SV242 @ SV183 )
        = $false )
      | ( ( in @ SV242 @ SV53 )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1195]) ).

thf(1218,plain,
    ! [SV53: $i,SV159: $i,SV183: $i,SV243: $i] :
      ( ( ( in @ SV243 @ SV183 )
        = $false )
      | ( ( ~ ( in @ SV243 @ SV159 ) )
        = $true )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1196]) ).

thf(1219,plain,
    ! [SV163: $i,SV185: $i,SV54: $i,SV244: $i] :
      ( ( ( SV244 = SV54 )
        = $false )
      | ( ( in @ SV244 @ SV185 )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1202]) ).

thf(1220,plain,
    ! [SV54: $i,SV185: $i,SV163: $i,SV245: $i] :
      ( ( ( SV245 = SV163 )
        = $false )
      | ( ( in @ SV245 @ SV185 )
        = $true )
      | ( ( SV185
          = ( unordered_pair @ SV54 @ SV163 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1203]) ).

thf(1221,plain,
    ! [SV186: $i,SV55: $i,SV234: $i,SV167: $i,SV240: $i] :
      ( ( ( in @ SV240 @ SV167 )
        = $false )
      | ( ( in @ SV234 @ SV55 )
        = $false )
      | ( ( ( ( sK14_D @ SV186 @ SV167 @ SV55 )
           != ( ordered_pair @ SV234 @ SV240 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1204]) ).

thf(1222,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( in @ ( sK15_SY191 @ SV186 @ SV167 @ SV55 ) @ SV55 )
        = $true )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1205]) ).

thf(1223,plain,
    ! [SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( in @ ( sK16_SY193 @ SV186 @ SV167 @ SV55 ) @ SV167 )
        = $true )
      | ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1206]) ).

thf(1224,plain,
    ! [SV187: $i,SV235: $i,SV168: $i,SV246: $i,SV55: $i,SV241: $i] :
      ( ( ( ~ ( in @ SV241 @ SV55 ) )
        = $true )
      | ( ( ~ ( in @ SV246 @ SV168 ) )
        = $true )
      | ( ( ( SV235
           != ( ordered_pair @ SV241 @ SV246 ) ) )
        = $true )
      | ( ( in @ SV235 @ SV187 )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1207]) ).

thf(1225,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV55 )
              | ~ ( in @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV168 ) ) )
        = $true )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1208]) ).

thf(1226,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( SV236
          = ( ordered_pair @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) ) )
        = $true )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1209]) ).

thf(1227,plain,
    ! [SV175: $i,SV58: $i,SV191: $i,SV247: $i] :
      ( ( ( in @ SV247 @ SV191 )
        = $false )
      | ( ( in @ SV247 @ SV58 )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1211]) ).

thf(1228,plain,
    ! [SV58: $i,SV175: $i,SV191: $i,SV248: $i] :
      ( ( ( in @ SV248 @ SV191 )
        = $false )
      | ( ( in @ SV248 @ SV175 )
        = $true )
      | ( ( SV191
          = ( set_intersection2 @ SV58 @ SV175 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1212]) ).

thf(1229,plain,
    ! [SV179: $i,SV193: $i,SV59: $i,SV249: $i] :
      ( ( ( in @ SV249 @ SV59 )
        = $false )
      | ( ( in @ SV249 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1215]) ).

thf(1230,plain,
    ! [SV59: $i,SV193: $i,SV179: $i,SV250: $i] :
      ( ( ( in @ SV250 @ SV179 )
        = $false )
      | ( ( in @ SV250 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV59 @ SV179 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1216]) ).

thf(1231,plain,
    ! [SV53: $i,SV183: $i,SV159: $i,SV243: $i] :
      ( ( ( in @ SV243 @ SV159 )
        = $false )
      | ( ( in @ SV243 @ SV183 )
        = $false )
      | ( ( SV183
          = ( set_difference @ SV53 @ SV159 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1218]) ).

thf(1232,plain,
    ! [SV240: $i,SV234: $i,SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( ( sK14_D @ SV186 @ SV167 @ SV55 )
          = ( ordered_pair @ SV234 @ SV240 ) )
        = $false )
      | ( ( in @ SV234 @ SV55 )
        = $false )
      | ( ( in @ SV240 @ SV167 )
        = $false )
      | ( ( ~ ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1221]) ).

thf(1233,plain,
    ! [SV187: $i,SV235: $i,SV168: $i,SV246: $i,SV55: $i,SV241: $i] :
      ( ( ( in @ SV241 @ SV55 )
        = $false )
      | ( ( ~ ( in @ SV246 @ SV168 ) )
        = $true )
      | ( ( ( SV235
           != ( ordered_pair @ SV241 @ SV246 ) ) )
        = $true )
      | ( ( in @ SV235 @ SV187 )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1224]) ).

thf(1234,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( ~ ( in @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV55 )
          | ~ ( in @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
        = $false )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1225]) ).

thf(1235,plain,
    ! [SV234: $i,SV240: $i,SV55: $i,SV167: $i,SV186: $i] :
      ( ( ( in @ ( sK14_D @ SV186 @ SV167 @ SV55 ) @ SV186 )
        = $false )
      | ( ( in @ SV240 @ SV167 )
        = $false )
      | ( ( in @ SV234 @ SV55 )
        = $false )
      | ( ( ( sK14_D @ SV186 @ SV167 @ SV55 )
          = ( ordered_pair @ SV234 @ SV240 ) )
        = $false )
      | ( ( SV186
          = ( cartesian_product2 @ SV55 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1232]) ).

thf(1236,plain,
    ! [SV187: $i,SV235: $i,SV55: $i,SV241: $i,SV168: $i,SV246: $i] :
      ( ( ( in @ SV246 @ SV168 )
        = $false )
      | ( ( in @ SV241 @ SV55 )
        = $false )
      | ( ( ( SV235
           != ( ordered_pair @ SV241 @ SV246 ) ) )
        = $true )
      | ( ( in @ SV235 @ SV187 )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1233]) ).

thf(1237,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( ~ ( in @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV55 ) )
        = $false )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1234]) ).

thf(1238,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( ~ ( in @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV168 ) )
        = $false )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1234]) ).

thf(1239,plain,
    ! [SV187: $i,SV168: $i,SV55: $i,SV246: $i,SV241: $i,SV235: $i] :
      ( ( ( SV235
          = ( ordered_pair @ SV241 @ SV246 ) )
        = $false )
      | ( ( in @ SV241 @ SV55 )
        = $false )
      | ( ( in @ SV246 @ SV168 )
        = $false )
      | ( ( in @ SV235 @ SV187 )
        = $true )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1236]) ).

thf(1240,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( in @ ( sK12_E @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV55 )
        = $true )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1237]) ).

thf(1241,plain,
    ! [SV55: $i,SV168: $i,SV187: $i,SV236: $i] :
      ( ( ( in @ ( sK13_SY188 @ SV236 @ SV187 @ SV168 @ SV55 ) @ SV168 )
        = $true )
      | ( ( in @ SV236 @ SV187 )
        = $false )
      | ( ( SV187
          = ( cartesian_product2 @ SV55 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1238]) ).

thf(1242,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[265,1241,1240,1239,1235,1231,1230,1229,1228,1227,1226,1223,1222,1220,1219,1217,1214,1213,1210,1201,1200,1199,1198,1197,1192,1186,1179,1173,1170,1169,1160,1159,1155,1140,1139,1115,1114,1106,1105,1104,1103,1100,1086,1073,1072,1069,1066,1057,1056,1037,1036,1035,1020,1019,1018,1017,1016,1009,1008,990,987,985,984,981,971,970,964,963,962,961,933,928,917,914,904,887,877,876,870,856,855,837,836,835,834,833,832,826,825,823,822,821,820,819,763,762,756,708,698,697,696,695,694,691,690,689,684,630,629,628,622,619,617,613,611,608,556,552,542,532,482,478,477,476,475,469,465,463,461,460,454,446,419,415,414,413,412,410,409,407,406,391,381,340,328,321,320,319,318,317,316,315,314,313,312,311]) ).

thf(1243,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[1242]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem  : SEU161+2 : TPTP v8.1.0. Released v3.3.0.
% 0.10/0.13  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.13/0.34  % Computer : n005.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Mon Jun 20 01:56:23 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.37  ..
% 0.13/0.39  
% 0.13/0.39   No.of.Axioms: 90
% 0.13/0.39  
% 0.13/0.39   Length.of.Defs: 0
% 0.13/0.39  
% 0.13/0.39   Contains.Choice.Funs: false
% 0.19/0.42  ..
% 0.19/0.44  (rf:0,axioms:90,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:600,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:92,loop_count:0,foatp_calls:0,translation:fof_full)........................................................................................
% 1.83/2.02  
% 1.83/2.02  ********************************
% 1.83/2.02  *   All subproblems solved!    *
% 1.83/2.02  ********************************
% 1.83/2.02  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:91,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:74,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:1242,loop_count:0,foatp_calls:1,translation:fof_full)
% 2.33/2.51  
% 2.33/2.51  %**** Beginning of derivation protocol ****
% 2.33/2.51  % SZS output start CNFRefutation
% See solution above
% 2.33/2.51  
% 2.33/2.51  %**** End of derivation protocol ****
% 2.33/2.51  %**** no. of clauses in derivation: 1243 ****
% 2.33/2.51  %**** clause counter: 1242 ****
% 2.33/2.51  
% 2.33/2.51  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:91,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:74,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:1242,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------